阅读说明：本技术 涡轮壳体用保温装置、涡轮壳体用保温块的固定器具以及涡轮壳体用保温块的固定方法 (The fixing means of turbine shroud attemperator, the fixed appliance of turbine shroud heat insulating block and turbine shroud heat insulating block ) 是由 阿部飞太 黑川祐二 和泉卓也 中尾猛 井手启介 古贺理 于 2018-05-11 设计创作，主要内容包括：覆盖涡轮壳体主体(2)的保温块(3)的固定器具(4)具有：固定棒(41),在一端具有包括突起(412)的卡合部(431)；以及插口(42)。插口(42)具有供固定棒(41)的突起(412)进入的引导槽(421)以及凹设槽(422)。引导槽(421)具有：第一引导槽(421a),沿插口轴线方向从始端(A1)延伸到终端(B1)；以及第二引导槽(421b),始端A2与终端B1连接,沿相对于插口轴线的周向从始端A2延伸到终端B2。第二引导槽(421b)与凹设槽(422)连接。(The fixed appliance (4) for covering the heat insulating block (3) of turbine shroud main body (2) includes hold-down bars (41), has the holding section (431) including protrusion (412) at one end；And socket (42).Socket (42) has the guiding groove (421) and recessed slot (422) that the protrusion (412) for hold-down bars (41) enters.Guiding groove (421) includes the first guiding groove (421a), extends to terminal (B1) from beginning (A1) along socket axis direction；And second guiding groove (421b), beginning A2 are connect with terminal B1, extend to terminal B2 from beginning A2 along relative to the circumferential of socket axis.Second guiding groove (421b) is connect with recessed slot (422).)

1. a kind of turbine shroud attemperator, has:

Heat insulating block is set to the surface of turbine shroud main body；

Hold-down bars can be penetrated through in the thickness direction of the heat insulating block；With,

Socket is fixed on the surface of the turbine shroud main body,

The heat insulating block includes bag body, is formed with insertion hole in specified position；And inorfil is filled in the bag body,

The hold-down bars includes rodlike main part, enters the heat insulating block from the insertion hole, described in thickness direction perforation Heat insulating block；And holding section, it is formed in the first end of the main part, including to the radial direction relative to the rodlike main part Outside a pair of of protrusion outstanding,

The socket forms hollow cylindrical, the end of the first side of the axis direction that socket axis extends centered on socket axis Open end is formed,

The socket, which has, to be formed as being recessed to outer peripheral side from the inner peripheral surface of the socket, the first guidance entered for the protrusion Slot, the second guiding groove and recessed slot,

First guiding groove has the first beginning and first terminal in the open end, begins in the axial direction from described first End extends to the first terminal,

Second guiding groove has the second beginning connecting with the first terminal and second terminal, along relative to the socket The circumferential of axis extends to the second terminal from second beginning,

The recessed slot is connect with the second terminal, is extended from the second terminal along the axis direction.

2. turbine shroud attemperator according to claim 1, wherein

The opening end side of the socket of the recessed slot from the second terminal on the axis direction extends.

3. turbine shroud attemperator according to claim 1, wherein

The turbine with the open end side opposite side of the recessed slot from the second terminal on the axis direction Housing body side extends.

4. turbine shroud attemperator according to any one of claim 1 to 3, wherein

It is formed with external screw thread in the main part of the hold-down bars,

The hold-down bars can insert the main part, comprising: flange presses the heat insulating block to the turbine shroud main body side Pressure；And nut, it is threaded into the main part, so that the flange to be fixed on to the specified position of the main part.

5. turbine shroud attemperator according to any one of claim 1 to 4, wherein

The heat insulating block includes the first heat insulating block, covers the surface of the turbine shroud main body；With the second heat insulating block, across plate The enhancing component of shape is laminated in the thickness direction of first heat insulating block,

First heat insulating block includes the first bag body, is formed with insertion hole in specified position；And inorfil, it is filled in described In first bag body,

Second heat insulating block includes the second bag body, is formed with insertion hole in specified position；And inorfil, it is filled in described In second bag body.

6. turbine shroud attemperator according to claim 5, wherein

Filled with organism Soluble Fiber as the inorfil in first bag body,

Filled with asbestos as the inorfil in second bag body.

7. turbine shroud attemperator according to claim 5 or 6, which is characterized in that

The enhancing component is expanding metal or punch metal.

8. a kind of fixed appliance of turbine shroud heat insulating block, has:

Hold-down bars；With

Socket forms hollow cylindrical, the end shape of the first side of the axis direction that socket axis extends centered on socket axis At open end,

The hold-down bars includes main part, and formation is rodlike, and is formed with external screw thread；Holding section is formed in the of the main part One end, including raised to the radial outside of rodlike main part a pair outstanding；Flange can insert the main part；With And nut, it is threaded into the main part, so that the flange is fixed on to the specified position of the main part,

The socket, which has, to be formed as being recessed to outer peripheral side from the inner peripheral surface of the socket, the first guidance entered for the protrusion Slot, the second guiding groove and recessed slot,

First guiding groove has the first beginning and first terminal in the open end, begins in the axial direction from described first End extends to the first terminal,

Second guiding groove has the second beginning connecting with the first terminal and second terminal, along relative to the socket The circumferential of axis extends to the second terminal from second beginning,

The recessed slot is connect with the second terminal, is extended from the second terminal along the axis direction.

9. a kind of fixing means of turbine shroud heat insulating block executes following process:

Heat insulating block is set to turbine shroud main body by setting process；

Position adjusts process, the position of the heat insulating block is adjusted relative to socket, the socket is disposed in the turbine shroud master The surface of body forms hollow cylindrical, the end shape of the first side of the axis direction that socket axis extends centered on socket axis At open end；

Process is penetrated through, the hold-down bars with holding section is made to penetrate through the heat insulating block；

Pressing operation process carries out pressing operation to the hold-down bars, so that the holding section is stored to the socket；

Rotation process process is carrying out rotation process to the hold-down bars relative to the circumferential of the socket axis；With

Engage process, the holding section made to be sticked in the socket,

The heat insulating block, which has, to be formed with the bag body of insertion hole in specified position and is filled in the intracorporal inorfil of the bag, and And there is thickness from a surface side to another surface side,

The hold-down bars includes rodlike main part；And the holding section, it is formed in the first end of the main part, including It is raised to the radial outside of rodlike main part a pair outstanding,

The socket, which has, to be formed as being recessed to outer peripheral side from the inner peripheral surface of the socket, the first guidance entered for the protrusion Slot, the second guiding groove and recessed slot,

First guiding groove has the first beginning and first terminal in the open end, begins in the axial direction from described first End extends to the first terminal,

Second guiding groove has the second beginning connecting with the first terminal and second terminal, along relative to the socket The circumferential of axis extends to the second terminal from second beginning,

The recessed slot is connect with the second terminal, is extended from the second terminal along the axis direction,

In the setting process, contact another surface side of the heat insulating block with the surface of the turbine shroud main body,

In position adjustment process, the position of the heat insulating block is adjusted, so as to the socket and be formed in described The insertion hole of the specified position of another surface side of heat insulating block is chimeric,

In the pressing operation process, pressing operation is carried out to the hold-down bars, makes the protrusion from first guiding groove First beginning enter first guiding groove in, until first guiding groove the first terminal,

In the rotation process process, rotation process is carried out to the hold-down bars in the circumferential direction, makes first guiding groove The interior protrusion enters in second guiding groove from second beginning of second guiding groove, until described second draws The second terminal of guide groove,

In the engaging process, the protrusion in second guiding groove is made to enter the recessed slot.

10. the fixing means of turbine shroud heat insulating block according to claim 9, wherein

The engaging process includes pressing operation process, is carried out from the second terminal in the axis direction to the hold-down bars Pressing operation.

11. the fixing means of turbine shroud heat insulating block according to claim 9, wherein

The engaging process includes pull operation process, is carried out from the second terminal in the axis direction to the hold-down bars Pull operation.

Technical field

The present invention relates to turbine shroud attemperator, the fixed appliance of turbine shroud heat insulating block and turbine shroud use The fixing means of heat insulating block.

Japanese patent application 2017-094451 opinion that the application is filed an application based on May 11st, 2017 in Japan Priority, and its content is incorporated herein.

Background technique

In general, the steam turbine used in power plant, chemical plant etc. and gas turbine are (hereinafter, be referred to as " whirlpool Turbine generator ") turbine shroud be configured to be by boundary segmentation of the central axis of the rotating parts such as rotor up and down two parts.Upper case Body and lower case are secured to one another by bolt in respective flange part.The stationary parts such as stator blade are equipped in the inner surface of turbine shroud Point.Horizontally perforation is equipped with the rotating parts such as the rotor for being equipped with movable vane in turbine shroud.The rotating part is by being set to turbine The bearing of shell rotatably supports.

Here, in the operating such as turbine, high temperature, high pressure the fluids such as gas turbine shroud internal flow.At this point, quiet The fluid of the narrower gap of locking system and rotary system, leakage is fewer, can be by more energy transmissions to rotary system.Turbine The outer surface of shell generally for prevent heat dissipation and by including that the heat insulating block that constitutes of heat resistance heat-insulating material covers.

The setting of turbine shroud is constructed as this heat insulating block, it is known to be constructed shown in such as Fig. 4 A.It is specific and Speech, is alternately laminated the heat-insulating material 102 and heat insulating block 103 of multiple flocculences on the surface of turbine shroud 101.For more For a heat-insulating material 102 and multiple heat insulating blocks 103, double end is inserted respectively in the multiple insertion holes 105 for being formed in them Bolt 104 is fixed on turbine shroud 101.

Furthermore shell is opened when carrying out regularly Inspection to turbogenerator.Therefore, it requires to keep the temperature every time Block is dismounted from turbine shroud.Thus, it is desirable that heat insulating block is to be easy to carry out dismounting operation to the setting construction of turbine shroud Construction.However, the heat insulating block shown in Figure 4 A is in the fixture construction of turbine shroud, due to needing laminated multi-layer heat-insulating material 102 and heat insulating block 103 so flow chart increases need that working hour largely is arranged.

For this problem, inventors, which propose, simply and rapidly to construct, and can seek the contracting of construction period Short and maintenance cost reduced turbine shroud is with thermal insulation structure (patent document 1).

Specifically, as shown in Figure 4 B, which has: reticular component 203 is configured at the surface of turbine shroud；Heat preservation Block 201 is configured in a manner of covering the surface；And band 205.A part insert with 205 is to penetrate through turbine in thickness direction The through hole 202 that the mode of heat insulating block 201 is arranged.In band 205, hook is equipped in a part of end of insert through hole 202 204.There is reticular component 203 the hook 204 is locking.

Summary of the invention

Problems to be solved by the invention

In the turbine shroud thermal insulation structure disclosed in Patent Document 1, only protected by passing through a part of band The through hole of warm block keeps the predetermined portion for being hooked on reticular component of the one end that will be set to band, pulls the another of band upwards The state of one end, (side of reticular component) presses heat insulating block downwards, can be carried out construction.Therefore, according to the patent document 1 Disclosed in turbine shroud thermal insulation structure, operator can simply and rapidly construct, and can seek the shortening of construction period And the reduction of maintenance cost.

On the other hand, it is fastened and fixed in disclosed turbine shroud thermal insulation structure by strap in patent document 1, because This, has that heat insulating block is not close to turbine shroud and can not obtain enough heat insulation effects sometimes according to its tightening state.

It (is protected in particular, the heat insulating block for the lower side body being assemblied in turbine shroud acts on oriented vertical lower section because of gravity Direction of the warm block far from turbine shroud) power therefore unless making the fastening of band is opposite to enhance, be otherwise unable to ensure heat insulating block pair The close and property of turbine shroud.

It is attached at the cloth on the surface of heat insulating block moreover, being tightly attached to by making to be set to the strap with end and brings and carry out band It is fixed, but when repeating to dismount heat insulating block, these straps can deteriorate, and close and power weakens, and therefore, probably fixing intensity also can Decline.

The present invention is invented in view of problem above, and its purpose is to provide for the turbine used in power plant etc. For the turbine shroud of generator, simply and rapidly it can be configured and dismantle, the turbine shroud that can be reused is protected The fixing means of warm device, the fixed appliance of turbine shroud heat insulating block and turbine shroud heat insulating block.

Technical solution

In order to realize the purpose, turbine shroud of the invention has with attemperator: heat insulating block is set to turbine shroud The surface of main body；Hold-down bars can be penetrated through in the thickness direction of the heat insulating block；And socket, it is fixed on the turbine shroud master The surface of body.

The heat insulating block includes bag body, is formed with insertion hole in specified position；And inorfil, it is filled in the bag In vivo.The hold-down bars includes rodlike main part, enters the heat insulating block from the insertion hole, penetrates through institute in thickness direction State heat insulating block；And holding section, it is formed in the first end of the main part, including to the diameter relative to the rodlike main part A pair of of the protrusion protruded outward.The socket forms hollow cylindrical, the axis that socket axis extends centered on socket axis The end of first side in line direction forms open end.The socket, which has, is formed as recessed to outer peripheral side from the inner peripheral surface of the socket It falls into, the first guiding groove, the second guiding groove and the recessed slot entered for the protrusion.First guiding groove has the opening The first beginning and first terminal in end, extend to the first terminal from first beginning in the axial direction.Described second Guiding groove has the second beginning for connect with the first terminal and second terminal, along the circumferential direction relative to the socket axis from Second beginning extends to the second terminal.The recessed slot is connect with the second terminal, from the second terminal edge The axis direction extends.

This programme has heat insulating block, and the heat insulating block fills inorfil in the bag body that specified position is formed with insertion hole It forms, is set to the surface of turbine shroud main body.It can efficiently prevent from dissipating from turbine shroud main body by inorfil as a result, Heat.Therefore, according to this programme, the thermal insulation property of turbine shroud main body can be improved.

This programme has the hold-down bars with holding section, and the holding section includes a pair of of protrusion.As a result, by fixing this Stick enters in protection block from insertion hole, engages hold-down bars with socket, and heat insulating block can be securely fixed in turbine shroud main body Surface.

It is formed in the inner peripheral surface of the socket of this programme and extends to first from the first beginning in open end in the axial direction First guiding groove of terminal.It is set to begin from first by the way that the protrusion of hold-down bars is entered the first guiding groove from the first beginning as a result, End is moved to first terminal, can guide the protrusion in axis direction.

The second beginning is formed in the inner peripheral surface of the socket of this programme to connect with first terminal, is circumferentially prolonged from the second beginning Reach the second guiding groove of second terminal.As a result, by entering the second guidance from the second beginning by the protrusion in the first guiding groove Slot and so that protrusion is moved to second terminal from the second beginning, circumferentially can guide the protrusion.

It is formed in the inner peripheral surface of the socket of this programme and is connect with second terminal, the recessed slot extended in the axial direction.By This keeps it mobile in axis direction, by the protrusion of hold-down bars and recessed slot by the way that the protrusion of the second guiding groove is entered recessed slot Engaging.Therefore, in the present solution, socket can be locked in hold-down bars, firmly fix hold-down bars with socket.

In the present solution, being equipped with socket on the surface of turbine shroud main body.Heat insulating block is being set to turbine case as a result, When the surface of phosphor bodies, it can be configured socket as label.Therefore, in the present solution, heat insulating block to turbine shroud main body Positioning become easy.

In addition, recessed slot from second terminal in the axial direction on turbine shroud main body side extend in the case where, pass through Hold-down bars is carried out protrusions snap to be made in recessed slot to this shirtsleeve operation of the pressing operation of turbine shroud main body side, it will Hold-down bars is locked in socket.

In addition, recessed slot from second terminal in the axial direction on socket opening end side extend in the case where, pass through Hold-down bars is carried out protrusions snap to be made in recessed slot, by hold-down bars to this shirtsleeve operation of the pull operation of end side is opened It is locked in socket.

Here, in the above scenario, can have flange, the flange can insert the main part of hold-down bars, to turbine Housing body side presses heat insulating block.It in this scenario, can be from guarantor in the state that hold-down bars is inserted turbine shroud heat insulating block The surface of warm block presses flange, and therefore, heat insulating block becomes secured to the fixation of turbine shroud main body.

In the scheme with flange, it can be formed with external screw thread in the main part of hold-down bars, nut is screwed into main part, Specified position fixed flange of the nut in main part.In this scenario, can by nut come the movement of limit flange, because This, heat insulating block becomes secured to the fixation of turbine shroud main body.

In any of the above scheme, the heat insulating block be can have: the first heat insulating block covers the turbine shroud main body Surface；And second heat insulating block, the enhancing component across plate are laminated in the thickness direction of first heat insulating block.Described first Heat insulating block includes the first bag body, is formed with insertion hole in specified position；And inorfil, it is filled in first bag body. Second heat insulating block includes the second bag body, is formed with insertion hole in specified position；And inorfil, it is filled in described In two bag bodies.In this scenario, for changing the material etc. in the first heat insulating block and the second heat insulating block as inorfil, respectively Kind of application method can be with.For example, the organism Soluble Fiber for using heat insulation effect high covers turbine shroud master as composition On the other hand first inorfil of first heat insulating block on the surface of body uses the stone that heat insulation effect is poor but raw material cost is low Cotton can ensure that the balance of heat insulating ability and cost as the second inorfil for constituting the second heat insulating block as a result,.

In addition, in the case where the enhancing component stacking of the first heat insulating block and the second heat insulating block across plate, the can be prevented One heat insulating block is shear-deformable with the second heat insulating block, and keeps laminated arrangement for a long time.

In addition, in the case where being filled with organism Soluble Fiber as the inorfil in first bag body, It can be further improved heat insulating ability.

In addition, it is able to maintain heat insulating ability in the case where being filled with asbestos as the inorfil in second bag body, And the cost of raw material can be controlled at a low price.

In addition, enhance component be expanding metal or punch metal in the case where, can be reliably prevented the first heat insulating block with Second heat insulating block cuts section deformation.

In order to realize the purpose, the fixed appliance of turbine shroud heat insulating block of the invention has: hold-down bars；And it inserts Mouthful, hollow cylindrical is formed centered on socket axis, the end of the first side of the axis direction that socket axis extends, which is formed, to be opened End.The hold-down bars includes main part, and formation is rodlike, and is formed with external screw thread；Holding section is formed in the of the main part One end, including raised to the radial outside of rodlike main part a pair outstanding；Flange can insert the main part；With And nut, it is threaded into the main part, so that the flange to be fixed on to the specified position of the main part.The socket has Be formed as being recessed to outer peripheral side from the inner peripheral surface of the socket, for the protrusion enter the first guiding groove, the second guiding groove with And recessed slot.First guiding groove has the first beginning and first terminal in the open end, in the axial direction from described First beginning extends to the first terminal.Second guiding groove has the second beginning for connecting with the first terminal and the Two terminals extend to the second terminal from second beginning along relative to the circumferential of the socket axis.The recessed slot It connect with the second terminal, extends from the second terminal along the axis direction.

This programme has the hold-down bars with holding section, and the holding section includes a pair of of protrusion.It as a result, can be not depart from The mode of the socket described hereinafter engages with the hold-down bars.

This programme have the main part that can insert hold-down bars flange and can be with the external thread spiro fastening that is formed in main part Nut.As a result, for example, can be pressed from the surface of heat insulating block in the state that hold-down bars is inserted turbine shroud heat insulating block Flange, and can be in the specified position fixed flange of hold-down bars.Therefore, in the present solution, heat insulating block can be made to turbine shroud master The assembly of body is secured.

It is formed in the inner peripheral surface of the socket of this programme and extends to first from the first beginning in open end in the axial direction First guiding groove of terminal.It is set to begin from first by the way that the protrusion of hold-down bars is entered the first guiding groove from the first beginning as a result, End is moved to first terminal, can guide the protrusion in axis direction.

The second beginning is formed in the inner peripheral surface of the socket of this programme to connect with first terminal, is circumferentially prolonged from the second beginning Reach the second guiding groove of second terminal.As a result, by entering the second guidance from the second beginning by the protrusion in the first guiding groove Slot and so that protrusion is moved to second terminal from the second beginning, circumferentially can guide the protrusion.

It is formed in the inner peripheral surface of the socket of this programme and is connect with second terminal, the recessed slot extended in the axial direction.By This and moves it in the axial direction by the way that the protrusion of the second guiding groove is entered recessed slot, by the protrusions snap of hold-down bars in Recessed slot.Therefore, in the present solution, socket can be locked in hold-down bars, firmly fix hold-down bars with socket.

In order to realize the purpose, the fixing means of turbine shroud heat insulating block of the invention executes following process: setting Heat insulating block is set to turbine shroud main body by process；Position adjusts process, and the position of the heat insulating block is adjusted relative to socket, The socket is disposed in the surface of the turbine shroud main body, and hollow cylindrical, socket axis are formed centered on socket axis The end of first side of the axis direction of extension forms open end；Process is penetrated through, the hold-down bars with holding section is made to penetrate through the guarantor Warm block；Pressing operation process carries out pressing operation to the hold-down bars, so that the holding section is stored to the socket；Rotation Turn operational sequence, rotation process is being carried out to the hold-down bars relative to the circumferential of the socket axis；And engaging process, make The holding section is sticked in the socket.The heat insulating block, which has, to be formed with the bag body of insertion hole in specified position and is filled in institute The intracorporal inorfil of bag is stated, and there is thickness from a surface side to another surface side.The hold-down bars includes rodlike main body Portion；And the holding section, it is formed in the first end of the main part, including prominent to the radial outside of the rodlike main part A pair of of protrusion out.The socket, which has, to be formed as being recessed to outer peripheral side from the inner peripheral surface of the socket, is entered for the protrusion The first guiding groove, the second guiding groove and recessed slot.First guiding groove have the open end in the first beginning and First terminal extends to the first terminal from first beginning in the axial direction.Second guiding groove have with it is described The second beginning and second terminal of first terminal connection extend along relative to the circumferential of the socket axis from second beginning To the second terminal.The recessed slot is connect with the second terminal, is extended from the second terminal along the axis direction. In the setting process, contact another surface side of the heat insulating block with the surface of the turbine shroud main body.Institute Rheme is set in adjustment process, is adjusted to the position of the heat insulating block, so as to the socket and be formed in the heat insulating block The insertion hole of the specified position of another surface side is chimeric.In the pressing operation process, the hold-down bars is pressed Operation enters the protrusion in first guiding groove from first beginning of first guiding groove, until described the The first terminal of one guiding groove.In the rotation process process, rotation behaviour is carried out to the hold-down bars in the circumferential direction Make, the protrusion in first guiding groove is made to enter second guidance from second beginning of second guiding groove In slot, until the second terminal of second guiding groove.In the engaging process, by the institute in second guiding groove Protrusion is stated into the recessed slot.

In the present solution, executing setting process.Heat insulating block can be set to the surface of turbine shroud main body as a result,.

In the present solution, execution position adjusts process.Heat insulating block position can be adjusted as a result, to position appropriate.

In the present solution, executing perforation process.Hold-down bars can be made to penetrate through in heat insulating block as a result,.At this point, relative to socket Position adjustment has been carried out to the insertion hole of heat insulating block, therefore, holding section the opening from socket of the hold-down bars penetrated through in heat insulating block It puts end to enter in socket, hold-down bars can be fixed temporarily.

In the present solution, executing pressing operation process.It, can be in socket as a result, by this shirtsleeve operation of pressing operation The protrusion of inherent axis direction guidance hold-down bars.

In the present solution, executing rotation process process.It, can be in socket as a result, by this shirtsleeve operation of rotation process The protrusion of inherent axially directed hold-down bars.

In the present solution, executing engaging process.As a result, by from the second terminal position of the second guiding groove by hold-down bars Protrusion enters recessed slot, therefore hold-down bars can be locked in socket firmly fixes hold-down bars with socket.

In addition, engaging the case where process includes to carry out the pressing operation process of pressing operation to hold-down bars from second terminal Under, by this shirtsleeve operation of pressing operation, the protrusion of hold-down bars is entered into recessed slot, hold-down bars can be locked in as a result, Therefore socket firmly fixes hold-down bars with socket.

In addition, including the case where the pull operation process for carrying out pull operation to hold-down bars from second terminal in engaging process Under, by this shirtsleeve operation of pull operation, the protrusion of hold-down bars is entered into recessed slot, hold-down bars can be locked in as a result, Therefore socket firmly fixes hold-down bars with socket.

Beneficial effect

In a scheme of the invention, attemperator simply and rapidly can be set to turbine shroud, can repeat to make With the attemperator.

Detailed description of the invention

Fig. 1 is the overall appearance figure of the attemperator of embodiments of the present invention.

Fig. 2A is the major part cross sectional side view of the fixed appliance of embodiments of the present invention.

Fig. 2 B is the major part cross sectional side view of other fixed appliances of embodiments of the present invention.

Fig. 3 A is the perspective view of the socket of embodiments of the present invention.

Fig. 3 B is the perspective view of other sockets of embodiments of the present invention.

Fig. 4 A is the sectional view of previous thermal insulation structure.

Fig. 4 B is the perspective view of other previous thermal insulation structures.

Specific embodiment

Hereinafter, referring to attached drawing, to being related to turbine shroud attemperator, the fixed appliance of turbine shroud heat insulating block and The embodiments of the present invention of the fixing means of turbine shroud heat insulating block are illustrated.

The turbine shroud of present embodiment is illustrated with attemperator using Fig. 1.For example, as shown in Figure 1, turbine Shell attemperator 1 is covered on the surface 21 of the turbine shroud main body 2 of turbogenerator used in power plant etc., to turbine Housing body 2 is kept the temperature.The attemperator 1 has heat insulating block 3 and for heat insulating block 3 to be fixed on turbine shroud main body 2 Surface 21 fixed appliance 4.

Heat insulating block 3 includes the first heat insulating block 3a, directly covers the surface 21 of turbine shroud main body 2；Enhance component 33, matches Set the plate on the first heat insulating block 3a；Enhance component 33, configures the plate on the first heat insulating block 3a；And second heat insulating block 3b is laminated via enhancing component 33 in thickness direction on the first heat insulating block 3a.First heat insulating block 3a and the second heat insulating block 3b For block-like heat-insulating material, the first heat insulating block 3a and the second heat insulating block 3b are sewn and integrated.First heat insulating block 3a have by First bag body 31a made of glass fabric and selected from the inorganic fibre for being filled in asbestos therein, organism Soluble Fiber etc. Dimension 32.Second heat insulating block 3b have the second bag body 31b made of glass fibre and selected from be filled in graphite therein, raw body can The inorfil 32 of soluble fiber etc..

Here, the first heat insulating block 3a and the second heat insulating block 3b must be not necessarily laminated in heat insulating block 3.For example, can be by having It is constituted either in the first heat insulating block 3a or the second heat insulating block 3b of thickness identical with heat insulating block 3.

But, by the way that heat insulating block 3 to be set as to two layers of construction of the first heat insulating block 3a and the second heat insulating block 3b, the first guarantor can be made Inorfil 32 used in warm block 3a and the second heat insulating block 3b is different.It can for example, the high organism of heat insulation effect can be filled Soluble fiber makes in the first heat insulating block 3a as the surface 21 of the turbine shroud main body 2 in covering further requirement heat insulation effect Inorfil 32.On the other hand, made by the filling heat insulation effect asbestos poorer but at low cost than organism Soluble Fiber For the inorfil 32 used in the second heat insulating block 3b, the balance of heat insulation effect and cost can ensure that.

Insertion hole 34 is respectively formed in the first bag body 31a and the second bag body 31b.The insertion hole of second bag body 31b 34 position is corresponding with the position of insertion hole 34 of the first bag body 31a.It is wrapped in the first heat insulating block 3a and the second heat insulating block 3b The insertion hole 34 of the first bag body 31a and the insertion hole 34 of the second bag body 31b are included, perforation the first heat insulating block 3a and second is formed with The through hole of heat insulating block 3b.

Here, necessarily not necessarily being formed with the through hole of perforation the first heat insulating block 3a and the second heat insulating block 3b.But, pass through It is formed with through hole, is made to the hold-down bars 41 as the fixed appliance 4 described later to the first heat insulating block 3a and The perforation operation of two heat insulating block 3b becomes easy.

Enhancing component 33 is, for example, made of metal, and surface is formed with the expanding metal of staggered mesh or is formed with round mesh Punch metal.

Here, must not necessarily clamp enhancing component 33 between the first heat insulating block 3a and the second heat insulating block 3b.But, In It, may be in the first heat insulating block 3a and second in the case where only fixing the first heat insulating block 3a and the second heat insulating block 3b by suturing It generates shear-deformable between heat insulating block 3b, the laminated arrangement of the first heat insulating block 3a and the second heat insulating block 3b can not be kept for a long time.Cause This, the first heat insulating block 3a's and the second heat insulating block 3b is shear-deformable in order to prevent in advance, from the long-term viewpoint for keeping laminated arrangement From the point of view of, preferably clamp enhancing component 33.

As being protruded outward part of it shear direction deviate in the state of, the first heat insulating block 3a and second heat preservation Block 3b is laminated in a manner of being respectively provided with tongue piece portion 35,35.

Here, the first heat insulating block 3a and the second heat insulating block 3b must not necessarily be laminated in a manner of with tongue piece portion 35,35. The rectangular surfaces of first heat insulating block 3a can be laminated with the rectangular surfaces of the second heat insulating block 3b in a manner of being overlapped.But, by first In the case that heat insulating block 3a and the second heat insulating block 3b is laminated in a manner of with tongue piece portion 35, it is configured at by multiple heat insulating blocks 3 When the circumferential direction of turbine shroud main body 2, being formed in the gap between adjacent heat insulating block 3 is therefore section shape can reduce and come from turbine The heat dissipation of housing body 2.Therefore, the feelings being laminated in a manner of with tongue piece portion 35 in the first heat insulating block 3a and the second heat insulating block 3b Under condition, heat insulation effect can be improved.

The heat insulating block 3 constituted in this way is respectively arranged at the surface 21 of turbine shroud main body 2, and is being formed in neighbour Gap between the heat insulating block 3 connect attaches strap 36.

Here, not necessarily strap 36 must be attached in the gap being formed between adjacent heat insulating block 3.But, pass through patch Attached strap 36 can prevent the heat dissipation from the gap being formed between adjacent heat insulating block 3, improve heat insulation effect.

Heat insulating block 3 is fixed on turbine shroud main body 2 by fixed appliance 4.The fixed appliance 4 has hold-down bars 41 and welding It is fixed on the socket 42 on the surface 21 of turbine shroud main body 2.

Shown in A and Fig. 2 B as shown in Figure 1, Figure 2, hold-down bars 41 includes claval main part 411；Holding section 413 is formed In the first end of main part 411, it is fastened in socket 42；And handle 414, it is formed in the second end of main part 411, for supplying Operator operates hold-down bars 41.Main part 411 is the insertion hole 34 and the second heat insulating block 3b that can penetrate through the second heat insulating block 3b The clava of insertion hole 34.External screw thread is formed in the periphery of the main part 411.Holding section 413 has substantially cylindric body Cadre and a pair of of protrusion 412, the pair of protrusion 412 are prominent from the trunk to the radial outside of rodlike main part 411.

Here, not necessarily must have handle 414 in the second end of main part 411.But, by with handle 414, energy The rotation process etc. for carrying out the hold-down bars described later 41 when fixed to socket 42 becomes easy, and can mitigate operator Homework burden.

Hold-down bars 41 also has grasping part 415, nut 417b, the flange 416 and nut 417a for being engaged in nut 417b. In the state that grasping part 415 penetrates through main part 411 in heat insulating block 3, heat insulating block 3 can be carried out from the surface of the second heat insulating block 3b Crimping.Nut 417b is threaded into the external screw thread of main part 411.Nut 417a is threaded into the main part 411, is engaged in spiral shell with adjustment Position of the flange 416 of female 417b relative to main part 411.

Here, hold-down bars 41 must not necessarily have flange 416.But, by that can press heat insulating block 3 with flange 416 It connects in turbine shroud main body 2, therefore, heat insulating block 3 can be made stronger to the fixation of turbine shroud main body 2.

It is contemplated that specification shown in socket 42a and Fig. 2 B and Fig. 3 B of specification shown in Fig. 2A and Fig. 3 A Socket 42b is as socket 42.Socket 42a, 42b are the hollow cylindrical centered on socket axis.Here, by socket axis The direction of extension is set as axis direction.First side of the axis direction of socket 42a, 42b of hollow cylindrical is open.Hollow cylinder Second side of the axis direction of socket 42a, 42b of shape is closed.It is formed in the inner peripheral surface of socket 42a, 42b for hold-down bars 41 Protrusion 412 engage guiding groove 421 and protrusion 412 is maintained at the recessed of latched position for connecting with the guiding groove 421 If slot 422.

The detailed configuration of guiding groove 421 and recessed slot 422 is illustrated based on Fig. 3 A and Fig. 3 B.Guiding groove 421 are formed as being recessed to outer peripheral side from the inner peripheral surface of socket 42a, 42b, to engage for a pair of of protrusion 412 of hold-down bars 41.Draw Guide groove 421 has the first guiding groove 421a and the second guiding groove 421b.First guiding groove 421a has the opening of socket 42a, 42b The the one the first beginning A1 and first terminal B1 in end.The axis direction that first guiding groove 42la extends along socket axis is from first Beginning A1 extends to first terminal B1.Second guiding groove 421b has the second beginning A2 connecting with first terminal B1 and second eventually Hold B2.Second guiding groove 421b extends to second terminal B2 from the second beginning A2 along relative to the circumferential of socket axis.

Recessed slot 422 is also identically formed to be recessed to outer peripheral side from the inner peripheral surface of socket 42a, 42b with guiding groove 421, To engage for a pair of of protrusion 412 of hold-down bars 41.The recessed slot 422 is connect with the second terminal B2 of the second guiding groove 421b, Extend in the axial direction.It should be noted that the recessed slot 422 of the socket 42a of specification shown in Fig. 2A and Fig. 3 A and The second terminal B2 connection of two guiding groove 421b extends from second terminal B2 along closing end side, i.e. 2 side of turbine shroud main body. In addition, the second terminal B2 of the recessed slot 422 of the socket 42b of specification shown in Fig. 2 B and Fig. 3 B and the second guiding groove 421b Connection extends from second terminal B2 along the opening end side of socket 42b.According to inserting for the turbine shroud main body 2 for being arranged in upside Mouth is arranged in the socket of the turbine shroud main body 2 of downside also to select the socket 42a and socket 42b mutually different using specification Which of.

For example, the socket 42a for using recessed slot 422 to extend along 2 side of turbine shroud main body is as being disposed in by up and down direction The socket of the turbine shroud main body 2 of the upside of the turbine shroud main body 2 of segmentation.For being disposed in the turbine shroud main body 2 of upside Socket 42a, hold-down bars 41 is inserted into downwards from the top of vertical direction.In the state that hold-down bars 41 inserts socket 42a, The power of hold-down bars 41 acts on 2 side of turbine shroud main body of upside due to gravity.The recessed slot 422 of socket 42a is from The second terminal B2 of two guiding groove 421b extends along 2 side of turbine shroud main body of upside.Accordingly, it is difficult to release the prominent of hold-down bars 41 Play the fastening state of 412 pairs of recessed slots 422.

On the other hand, use recessed slot 422 towards open ora terminalis side and the socket 42b that is formed as being disposed in by upper and lower To the socket of the turbine shroud main body 2 of the downside of the turbine shroud main body 2 of segmentation.For being disposed in the turbine shroud main body of downside For 2 socket 42b, hold-down bars 41 is inserted into upwards from the lower section of vertical direction.In the shape that hold-down bars 41 is inserted into socket 42b Under state, the power of hold-down bars 41 acts on the direction isolated from the turbine shroud main body 2 of downside due to gravity.Socket 42b Recessed slot 422 from the second terminal B2 of the second guiding groove 421b be turbine shroud from downside along the opening end side of socket 42b The isolated direction of main body 2 extends.Accordingly, it is difficult to release fastening state of the protrusion 412 to recessed slot 422 of hold-down bars 41.

Then, fixing means of the heat insulating block 3 to turbine shroud main body 2 is illustrated.

[setting process of heat insulating block]

Firstly, with 21 phase of surface at the back side (another side) of the first heat insulating block 3a in heat insulating block 3 and turbine shroud main body 2 The mode connect is configured.

[position adjustment process]

In the setting process of heat insulating block 3, when heat insulating block 3 to be set to the surface 21 of turbine shroud main body 2, protected The position of warm block 3 adjusts, so as to be disposed in turbine shroud main body 2 surface 21 socket 42 and be formed in the first heat insulating block 3a's The insertion hole 34 at the back side (another side) of the first bag body 31a is chimeric.

[perforation process]

In position adjustment process, when heat insulating block 3 is completed to the positioning on the surface of turbine shroud main body 2 21, use on one side The hand of operator temporarily presses the surface side of the second bag body 31b of the second heat insulating block 3b, on one side with another hand from shape Hold-down bars 41 is inserted at 413 side of holding section in the insertion hole 34 of the second bag body 31b of the second heat insulating block 3b including protrusion 412 Enter to heat insulating block 3, penetrates through the hold-down bars 41 in heat insulating block 3.Then, from the first beginning A1 of socket 42 by hold-down bars 41 Protrusion 412 be inserted into the first guiding groove 421a.

[flange crimping process]

In insertion process, in the state of inserting hold-down bars 41 in heat insulating block 3, nut 417a, 417b are screwed into To the main part 411 of hold-down bars 41, the position of flange 416 is adjusted, presses heat insulating block 3 will pass through flange 416.

[pressing operation process]

At the time point for the fastening state that can confirm that the first beginning A1 and protrusion 412, pressing operation is carried out to hold-down bars 41. By the pressing operation, the protrusion 412 of hold-down bars 41 is slided while being guided by the first guiding groove 421a of socket 42, until Meet first terminal B1.

[rotation process process]

By pressing operation process, it can confirm that protrusion 412 encounters the time point of first terminal B1, along relative to socket axis The circumferential side (clockwise or counterclockwise) of line carries out rotation process to hold-down bars 41.Pass through the rotation process, the first guidance Protrusion 412 in slot 421a is inserted into the second guiding groove 421b from the second beginning A2 of socket 42, second is guided by this on one side Slot 421b guidance is slided on one side, until meeting second terminal B2.

[engaging process]

By rotation process process, it can confirm that protrusion 412 encounters the time point of second terminal B2, hold-down bars 41 carried out Pressing operation or pull operation.By the pressing operation or pull operation, the protrusion 412 of hold-down bars 41 is sticked in from second terminal B2 recessed recessed slot 422.Locking of the hold-down bars 41 to socket 42 is completed as a result,.

For example, being disposed in the socket of the turbine shroud main body 2 of the upside for the turbine shroud main body 2 divided by up and down direction The recessed slot 422 of 42a extends from 2 side of turbine shroud main body of second terminal B2 in the axial direction as previously described.Therefore, true in energy Recognize the time point that protrusion 412 meets second terminal B2, by carrying out pressing operation to hold-down bars 41, protrusion 412 can be made to be sticked in Recessed slot 422.

On the other hand, it is disposed in inserting for the turbine shroud main body 2 of the downside for the turbine shroud main body 2 divided by up and down direction The opening end side of the recessed slot 422 of mouthful 42b socket 42b from second terminal B2 in the axial direction as previously described extends.Therefore, In It can confirm that protrusion 412 encounters the time point of second terminal B2, by carrying out pull operation to hold-down bars 41, protrusion 412 can be made to block Together in recessed slot 422.

More than, in the turbine shroud attemperator of present embodiment, the turbine used in power plant etc. can be sent out The turbine shroud of motor carries out simple and rapidly setting and disassembly, can reuse.

Industrial utilizability

In a scheme of the invention, attemperator simply and rapidly can be set to turbine shroud, can repeat to make With the attemperator.

Symbol description

1 attemperator

2 turbine shroud main bodys

21 surfaces

3 heat insulating blocks

The first heat insulating block of 3a

The second heat insulating block of 3b

The first bag body of 31a

The second bag body of 31b

32 inorfils

33 enhancing components

34 insertion holes

35 tongue piece portions

36 straps

4 fixed appliances

41 hold-down bars

411 main parts

412 protrusions

413 holding sections

414 handles

415 grasping parts

416 flanges

417a, 417b nut

42,42a, 42b socket

421 guiding grooves

The first guiding groove of 421a

The second guiding groove of 421b

422 recessed slots

The first beginning A1

The second beginning A2

B1 first terminal

B2 second terminal