阅读说明：本技术 一种倾动轴的冷却装置及冷却方法 (Cooling device and cooling method for tilting shaft ) 是由 杨立江 王岗 李栋 于 2020-12-24 设计创作，主要内容包括：本申请公开了一种倾动轴的冷却装置及冷却方法,属于高炉无料钟炉顶设备技术领域,解决倾动轴材质为合金钢,受重载、高温影响,可能无法正常工作或者倾动轴出现变形的问题,本申请包括箱体、倾动轴、水冷管支座、进水管和出水管；倾动轴安装于箱体内,倾动轴设有安装洞,水冷管支座安装在安装洞的洞口处,水冷管支座与倾动轴同时相对箱体转动；进水管从倾动轴外部穿过水冷管支座伸入安装洞的底端；进水管的口径小于安装洞的孔径,且进水管与所述水冷管支座之间留有空隙；出水管套设在进水管的外围,一端与水冷管支座连接,另一端沿着进水管靠近端部的位置向下弯折并与进水管相交固定。本申请解决了倾动轴变形,与支撑铜套卡阻的问题。(The application discloses a cooling device and a cooling method for a tilting shaft, belongs to the technical field of blast furnace bell-less furnace top equipment, and solves the problem that the tilting shaft is made of alloy steel and can not work normally or deform due to the influence of heavy load and high temperature; the tilting shaft is arranged in the box body and provided with an installation hole, the water-cooled tube support is arranged at the hole of the installation hole, and the water-cooled tube support and the tilting shaft rotate relative to the box body simultaneously; the water inlet pipe penetrates through the water-cooled pipe support from the outside of the tilting shaft and extends into the bottom end of the mounting hole; the aperture of the water inlet pipe is smaller than the aperture of the mounting hole, and a gap is reserved between the water inlet pipe and the water-cooled pipe support; the water outlet pipe is sleeved on the periphery of the water inlet pipe, one end of the water outlet pipe is connected with the water-cooling pipe support, and the other end of the water outlet pipe is bent downwards along the position, close to the end part, of the water inlet pipe and is intersected and fixed with the water inlet pipe. The application solves the problems that the tilting shaft is deformed and the supporting copper sleeve is blocked.)

1. A cooling device for a tilting shaft is characterized by comprising a box body (1), the tilting shaft (3), a water-cooled tube support (4), a water inlet pipe (7) and a water outlet pipe (8);

the tilting shaft (3) is installed in the box body (1), the tilting shaft (3) is provided with an installation hole (11), the water-cooled tube support (4) is installed at a hole of the installation hole (11), and the water-cooled tube support (4) and the tilting shaft (3) rotate relative to the box body (1) simultaneously;

the water inlet pipe (7) penetrates through the water-cooled pipe support (4) from the outside of the tilting shaft (3) and extends into the bottom end of the mounting hole (11); the aperture of the water inlet pipe (7) is smaller than the aperture of the mounting hole (11), and a gap is reserved between the water inlet pipe (7) and the water-cooled pipe support (4);

the water outlet pipe (8) is sleeved on the periphery of the water inlet pipe (7), one end of the water outlet pipe is connected with the water cooling pipe support (4), and the other end of the water outlet pipe is bent downwards along the position, close to the end part, of the water inlet pipe (7) and is intersected and fixed with the water inlet pipe (7).

2. A tilting shaft cooling device according to claim 1, characterized in that the end of said water inlet pipe (7) away from said tilting shaft (3) is provided with a water inlet (12), and said water outlet pipe (8) is provided with a water outlet (13) extending downwards at the intersection of the end away from said tilting shaft (3) and said water inlet pipe (7).

3. A tilting shaft cooling arrangement according to claim 1, characterized in that said water cooled tube support (4) comprises a support first end (41) and a support second end (42);

the first end (41) of the support is close to the tilting shaft (3) and fixed on the tilting shaft (3); the second end (42) of the support is positioned between the water outlet (8) and the tilting shaft (3) and is sleeved on the periphery of the water outlet pipe (8).

4. A tilting shaft cooling device according to claim 3, characterized in that said first end (41) of said holder is provided with a boss, said mounting hole (11) is provided with a recess at its entrance, said boss is embedded in said recess, and said first end (41) of said holder is fixed to said tilting shaft (3) by means of a first bolt (5).

5. A tilting shaft cooling device according to claim 3, characterized in that said second end (42) of said support is at the periphery of said outlet pipe (8), and a bearing (6) is arranged between said second end (42) of said support and said outlet pipe (8); the outer ring of the bearing (6) is in transition fit with the second end (42) of the support, and the inner ring of the bearing (6) is in transition fit with the water outlet pipe (8).

6. A cooling arrangement for a tilting shaft according to claim 5, characterized in that it further comprises a gland (9), said gland (9) being fixed to said second end (42) of said support by means of a second bolt (10) and compressing said bearing (6).

7. A tilting shaft cooling device according to claim 1, characterized in that a first supporting copper bush (21) and a second supporting copper bush (22) are installed between said tilting shaft (3) and said case (1);

the first supporting copper sleeve (21) and the second supporting copper sleeve (22) are respectively sleeved on the periphery of the tilting shaft (3) and are distributed axially;

the first supporting copper sleeve (21) and the second supporting copper sleeve (22) are in transition fit with the box body (1), and inner rings of the first supporting copper sleeve (21) and the second supporting copper sleeve (22) are in clearance fit with the tilting shaft (3).

8. A method for cooling a tilting shaft, characterized by using the cooling apparatus according to any one of claims 1 to 7, comprising: injecting cooling water toward a water inlet (12) of a cooling device so that the cooling water flows into the bottom end of the mounting hole (11) in the tilting shaft (3) from the water inlet pipe (7) in the horizontal direction; cooling water enters the interior of the tilting shaft (3) to take away heat in the interior of the tilting shaft (3), and return water starts to flow into a gap between the water inlet pipe (7) and the inner wall of the mounting hole (11) from an outlet of the water inlet pipe (7); then flows out from a gap between the first end (41) of the support and the water inlet pipe (7) into the water outlet pipe (8) and flows out from the water outlet pipe (8) to the water outlet (13).

9. A method for cooling a tilting shaft according to claim 8, characterized in that said outlet pipe (8) comprises a horizontal outlet section (81), an inclined outlet section (82), an end outlet section (83);

the horizontal water outlet section (81) is arranged at the periphery of the water inlet pipe (7), the inclined water outlet section (82) is continuous with the horizontal water outlet section (81) and inclines downwards, the end water outlet section (83) is positioned below the horizontal water outlet section (81), and water flows from the horizontal water outlet section (81) to the inclined water outlet section (82) and then flows to the end water outlet section (83) and then flows into a water return system.

Technical Field

The application relates to the technical field of blast furnace bell-less furnace top equipment, in particular to a cooling device and a cooling method for a tilting shaft.

Background

At present, chute lifting mechanisms in the distributing device for the blast furnace at home and abroad have various forms, and the chute lifting mechanisms are driven by hydraulic cylinders to drive levers, single-side worm gear speed reducers, double-side worm gear speed reducers and the like.

The speed reducer and the tilting speed reducer for the blast furnace top distributing device are arranged on a rotating chassis in the water-cooling distributing device, the tilting shaft is arranged on the tilting speed reducer of the distributing device and used for hanging a distributing chute, so that the distributing chute tilts, the tilting shaft carries the weight of the whole distributing chute, and the maximum distributing chute weight reaches 7.5 tons; the front end of the tilting shaft is directly contacted with the blast furnace gas flow and is directly influenced by the high temperature of the blast furnace temperature. Under normal conditions, the furnace top temperature is about 150-250 ℃, and under an accident state, the furnace top temperature is 600 ℃ or even higher. The tilting shaft is made of alloy steel, and may not work normally or deform due to heavy load and high temperature, and the phenomenon of blocking with surrounding connecting pieces occurs.

Disclosure of Invention

The embodiment of the invention provides a cooling device for a tilting shaft, which solves the problems of deformation of the tilting shaft and blockage of a supporting copper sleeve, realizes that cooling water passes through the inside of the tilting shaft after circulating cooling water passes through a water inlet pipe, takes away heat in the tilting shaft, then enters a water return system through a water outlet pipe, and reduces the internal temperature of the tilting shaft through circulating cooling.

In a first aspect, an embodiment of the present invention provides a cooling device for an inclined shaft, including a box body, an inclined shaft, a water-cooled tube support, a water inlet tube and a water outlet tube;

the tilting shaft is arranged in the box body, the tilting shaft is provided with an installation hole, the water-cooled tube support is arranged at the hole of the installation hole, and the water-cooled tube support and the tilting shaft simultaneously rotate relative to the box body;

the water inlet pipe penetrates through the water-cooled pipe support from the outside of the tilting shaft and extends into the bottom end of the mounting hole; the aperture of the water inlet pipe is smaller than the aperture of the mounting hole, and a gap is reserved between the water inlet pipe and the water-cooled pipe support;

the water outlet pipe is sleeved on the periphery of the water inlet pipe, one end of the water outlet pipe is connected with the water-cooled pipe support, and the other end of the water outlet pipe is bent downwards along the position, close to the end part, of the water inlet pipe and is intersected and fixed with the water inlet pipe.

With reference to the first aspect, in a possible implementation manner, a water inlet is disposed at one end of the water inlet pipe, which is far away from the tilting axis, and a water outlet is disposed at a position, where an intersection of one end of the water outlet pipe, which is far away from the tilting axis, and the water inlet pipe extends downward.

With reference to the first aspect, in one possible implementation manner, the water-cooled tube support includes a support first end and a support second end; the first end of the support is close to the tilting shaft and is fixed on the tilting shaft; and the second end of the support is positioned between the water outlet and the tilting shaft and is sleeved on the periphery of the water outlet pipe.

With reference to the first aspect, in a possible implementation manner, the first end of the support is provided with a boss, a groove is formed at an inlet of the mounting hole, the boss is embedded into the groove, and the first end of the support is fixed to the tilting shaft through a first bolt.

With reference to the first aspect, in a possible implementation manner, the second end of the support is located at the periphery of the water outlet pipe, and a bearing is arranged between the second end of the support and the water outlet pipe; the bearing outer ring is in transition fit with the second end of the support, and the bearing inner ring is in transition fit with the water outlet pipe.

With reference to the first aspect, in a possible implementation manner, the bearing further includes a pressing cover, and the pressing cover is fixed to the second end of the support through a second bolt and presses the bearing.

With reference to the first aspect, in a possible implementation manner, a first supporting copper sleeve and a second supporting copper sleeve are installed between the tilting shaft and the box body;

the first supporting copper sleeve and the second supporting copper sleeve are respectively sleeved on the periphery of the tilting shaft and are distributed axially;

the first supporting copper sleeve and the second supporting copper sleeve are in transition fit with the box body, and inner rings of the first supporting copper sleeve and the second supporting copper sleeve are in clearance fit with the tilting shaft.

In a second aspect, an embodiment of the present invention provides a method for cooling a tilting shaft, where the cooling device includes: injecting cooling water toward a water inlet of a cooling device, so that the cooling water flows into the bottom end of the mounting hole in the tilting shaft from the horizontal direction of the water inlet pipe; cooling water enters the interior of the tilting shaft, heat in the interior of the tilting shaft is taken away, and backwater begins to flow into a gap between the water inlet pipe and the inner wall of the mounting hole from an outlet of the water inlet pipe; and then flows out from a gap between the first end of the support and the water inlet pipe into the water outlet pipe and flows out from the water outlet pipe to the water outlet.

With reference to the second aspect, in a possible implementation manner, the water outlet pipe includes a horizontal water outlet section, an inclined water outlet section, and an end water outlet section;

the horizontal water outlet section is arranged on the periphery of the water inlet pipe, the inclined water outlet section and the horizontal water outlet section are continuous and incline downwards, the end water outlet section is positioned below the horizontal water outlet section, and water flows from the horizontal water outlet section to the inclined water outlet section, then flows to the end water outlet section and then flows into a return water system.

One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

1. the embodiment of the invention adopts the technical scheme that the installation hole is arranged in the tilting shaft, the water-cooling pipe support is arranged on the tilting shaft at the inlet of the installation hole, the water-cooling pipe support can rotate along with the tilting shaft, the tilting shaft drives the distribution chute to move, meanwhile, the water inlet pipe is arranged in the tilting shaft through the water-cooling pipe support, one end of the water inlet pipe is arranged outside the tilting shaft, the other end of the water inlet pipe is arranged in the tilting shaft, cooling water can enter the tilting shaft through the water inlet pipe to cool the tilting shaft, the caliber of the water inlet pipe is smaller than the caliber of the installation hole, therefore, backwater can flow through the water inlet pipe and the inner wall of the installation hole, a gap is reserved between the water inlet pipe and the water-cooling pipe support, the backwater can flow out, and therefore, after the circulating cooling water passes through the water inlet pipe, the cooling water passes through the inside, the internal temperature of the tilting shaft is reduced through circulating cooling, the high-temperature influence continuously received by the tilting shaft can be reduced, and the phenomenon that the tilting shaft deforms and is blocked between the tilting shaft and surrounding connecting pieces is prevented.

2. One end of the water inlet pipe is fixed with one end of the water outlet pipe, so that the water inlet pipe is more convenient to assemble and disassemble integrally.

3. The bearing is arranged between the water cooling pipe support and the water outlet pipe, the tilting shaft drives the water cooling pipe support to rotate when rotating, the rotation is flexible, the running resistance is small, and the service life is longer compared with a copper sleeve structure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments of the present invention or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a cooling device for a tilting shaft according to an embodiment of the present disclosure;

fig. 2 is a partial schematic structural diagram of a cooling device for a tilting shaft according to an embodiment of the present disclosure;

fig. 3 is a partial schematic structural view of a cooling device for a tilting shaft according to an embodiment of the present disclosure;

fig. 4 is a water inlet and outlet circulation pipeline of the cooling device for the tilting shaft according to the embodiment of the present application.

Reference numerals: 1-a box body; 21-a first supporting copper sleeve; 22-a second supporting copper sleeve; 3-tilting axis; 4-water cooling tube support; 41-a first end of a support; 42-a second end of the support; 5-a first bolt; 6-a bearing; 7-water inlet pipe; 8-water outlet pipe; 81-horizontal water outlet section; 82-inclined water outlet section; 83-end water outlet section; 9-pressing a cover; 10-a second bolt; 11-mounting holes; 12-a water inlet; 13-water outlet; 14-a first temperature measurer; 15-a filter; 16-a cooler; 17-a controller; 18-a control valve; 19-a flow meter; 20-a second temperature measurer; 21-booster pump.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

As shown in fig. 1 to 4, an embodiment of the present invention provides a cooling device for a tilting shaft, including a box 1, a tilting shaft 3, a water-cooled tube support 4, a water inlet tube 7, and a water outlet tube 8.

The tilting shaft 3 is installed in the box body 1, the tilting shaft 3 is provided with an installation hole 11, the water-cooled tube support 4 is installed at the hole of the installation hole 11, and the water-cooled tube support 4 and the tilting shaft 3 rotate relative to the box body 1 simultaneously.

The water inlet pipe 7 penetrates through the water-cooled pipe support 4 from the outside of the tilting shaft 3 and extends into the bottom end of the mounting hole 11; the aperture of the water inlet pipe 7 is smaller than the aperture of the mounting hole 11, and a gap is reserved between the water inlet pipe 7 and the water-cooled pipe support 4.

The water outlet pipe 8 is sleeved on the periphery of the water inlet pipe 7, one end of the water outlet pipe is connected with the water-cooling pipe support 4, and the other end of the water outlet pipe is bent downwards along the position, close to the end part, of the water inlet pipe 7 and is intersected and fixed with the water inlet pipe 7.

Through the above scheme, at first the axis of tilting 3 can rotate on box 1, realize the basic function of axis of tilting 3, the inside installation hole 11 that is equipped with of axis of tilting 3, rivers penetrate the inside of installation hole 11 through inlet tube 7, the bore of inlet tube 7 is less than the aperture of installation hole 11, therefore the inner wall of inlet tube 7 and installation hole 11 can have the return water to flow through, and leave the space between inlet tube 7 and the water-cooled tube support 4, the return water can flow out, consequently, circulating cooling water passes through behind inlet tube 7, the cooling water is through the inside of the axis of tilting, take away the inside heat of axis of tilting 3, then get into the return water system through outlet pipe 8, reduce the inside temperature of axis of tilting 3 through circulating cooling, can reduce the high temperature influence that axis of tilting 3 lastingly received, prevent that axis of tilting 3 from appearing warping, appear blocking phenomenon with connecting piece.

It should be noted that the water inlet pipe 7 should extend into the bottom end of the installation hole 11 as much as possible, but at the same time, the water inlet pipe is not close to the bottom end of the installation hole 11, and the bottom end extending into the installation hole 11 ensures that the cooling water can penetrate through the tilting shaft 3 as much as possible, so that the interior of the tilting shaft 3 is cooled from front to back as much as possible, and the cooling is uniform; the water inlet pipe 7 is not close to the bottom of the mounting hole 11 and can ensure that cooling water flows out smoothly from the position, close to the bottom of the mounting hole 11, of the water inlet pipe 7 after entering from the water inlet pipe 7, and then returns to the water outlet pipe 8 from the position between the water inlet pipe 7 and the inner wall of the mounting hole 11; for example, the length of the water inlet pipe 7 extending into the installation hole 11 may be 5/6-6/7 of the depth of the installation hole 11. If the water inlet pipe 7 extends into the bottommost end of the installation hole 11 and even contacts with the bottom end of the installation hole 11, water is difficult to flow out, corresponding water return can be blocked, and if the length of the water inlet pipe 7 extending into the installation hole 11 is too short, the cooling effect on the front end of the tilting shaft 3 can be reduced, so that the 5/6-6/7 with the length of the water inlet pipe 7 extending into the installation hole 11 being the depth of the installation hole 11 is the most reasonable, the smoothness of water inlet and water return can be guaranteed, and the front end of the tilting shaft 3 can be effectively cooled.

When rivers were from the inner wall of inlet tube 7 and installation hole 11 between to water-cooled tube support 4, because water-cooled tube support 4 was equipped with the cross-section towards one side of tilting axis 3 and was curved arc wall, when rivers were prepared through water-cooled tube support 4, because there was the effect of arc wall, rivers are convenient more and even flow into the gap between outlet pipe 8 and the inlet tube 7 again along the arc wall in, had certain cushioning effect, reduce rivers to water-cooled tube support 4's impact force.

The end of the water inlet pipe 7 far away from the tilting shaft 3 is provided with a water inlet 12, and the water outlet pipe 8 extends downwards at the intersection of the end far away from the tilting shaft 3 and the water inlet pipe 7 and is provided with a water outlet 13. In order to facilitate water inlet and water return, a water inlet return loop is realized.

Referring to FIG. 1, the water cooled tube support 4 includes a support first end 41 and a support second end 42; the first end 41 of the support is close to the tilting shaft 3 and fixed on the tilting shaft 3;

the second end 42 of the support is located between the water outlet 8 and the tilting shaft 3 and sleeved on the periphery of the water outlet pipe 8, the second end 42 of the support is of a hollow structure with an opening at one side, the first end 41 of the support is provided with a boss, the inlet of the mounting hole 11 is provided with a groove, the boss is embedded into the groove, and the first end 41 of the support is fixed on the tilting shaft 3 through the first bolt 5. The first end 41 of the support is installed on the tilting shaft 3 through the bolt 5, and is integrally installed outside the tilting shaft 3, so that the installation and the replacement are convenient, and the structure is simple.

The second end 42 of the support is arranged at the periphery of the water outlet pipe 8, the water outlet pipe 8 is connected with one side of the second end 42 of the support, which is close to the tilting shaft 3, and a bearing 6 is arranged between the second end 42 of the support and the water outlet pipe 8; the outer ring of the bearing 6 is in transition fit with the second end 42 of the support, and the inner ring of the bearing 6 is in transition fit with the water outlet pipe 8.

When the tilting shaft 3 rotates, the water-cooled tube support 4 is driven to rotate, the rotation is flexible through the bearing 6, the running resistance is small, and the service life of the copper bush structure is long compared with that of the copper bush structure.

In addition, a gland 9 is further included, and the gland 9 is fixed on the second end 42 of the support through a second bolt 10 and compresses the bearing 6. Prevent bearing 6 axial displacement, at this moment, water-cooled tube support 4 and tilting shaft 3 can rotate on box 1, and water-cooled tube support 4 and outlet pipe 8 pass through bearing 6 and rotate, and the running resistance is less.

A first supporting copper sleeve 21 and a second supporting copper sleeve 22 are arranged between the tilting shaft 3 and the box body 1; the first supporting copper sleeve 21 and the second supporting copper sleeve 22 are respectively sleeved on the periphery of the tilting shaft 3 and are distributed axially; the first supporting copper sleeve 21 and the second supporting copper sleeve 22 are in transition fit with the box body 1, and inner rings of the first supporting copper sleeve 21 and the second supporting copper sleeve 22 are in clearance fit with the tilting shaft 3; the box body 1 is respectively provided with a first groove and a second groove at the contact part of the first supporting copper sleeve 21 and the second supporting copper sleeve 22, the first supporting copper sleeve 21 is clamped into the first groove, and the second supporting copper sleeve 22 is clamped into the second groove; the first supporting copper sleeve 21 and the second supporting copper sleeve 22 are in transition fit with the box body 1, and inner rings of the first supporting copper sleeve 21 and the second supporting copper sleeve 22 are in clearance fit with the tilting shaft 3.

Through the above scheme, the tilting shaft 3 can rotate on the box body 1, and the first copper sleeve 21 and the second copper sleeve 22 are used for reducing friction and simultaneously transmitting power and playing a role in supporting and fixing.

The invention also includes a cooling method of the tilting shaft, which uses the cooling device, and comprises the following steps: injecting cooling water toward the water inlet 12 of the cooling device so that the cooling water flows into the bottom end of the mounting hole 11 in the tilt shaft 3 from the water inlet pipe 7 in the horizontal direction; cooling water enters the interior of the tilting shaft 3 to take away heat in the interior of the tilting shaft 3, and return water starts to flow into a gap between the water inlet pipe 7 and the inner wall of the mounting hole 11 from an outlet of the water inlet pipe 7; then flows out from the gap between the first end 41 of the support and the water inlet pipe 7 into the water outlet pipe 8 and flows out from the water outlet pipe 8 to the water outlet 13.

As shown in fig. 3, the water outlet pipe 8 includes a horizontal water outlet section 81, an inclined water outlet section 82, and an end water outlet section 83; the horizontal water outlet section 81 is arranged at the periphery of the water inlet pipe 7, the inclined water outlet section 82 is continuous with the horizontal water outlet section 81 and inclines downwards, the end water outlet section 83 is positioned below the horizontal water outlet section 81, and water flows from the horizontal water outlet section 81 to the inclined water outlet section 82, then flows to the end water outlet section 83 and then flows into a return water system.

The inclined water outlet section 82 is bent and inclined from the horizontal water outlet section 81 to the lower right in fig. 1 and fig. 2, the section is welded with the water inlet pipe 7 into a whole, the inclination angle is 120-150 degrees, when water flows downwards from the horizontal water outlet section 81, the water flow outflow speed is slow due to the resistance of the water inlet pipe 7, or the water flow is insufficient, the water outlet pipe 8 is arranged into the structure of the inclined water outlet section 82, the volume of the water flow when the water flow is about to flow out of the water outlet pipe 8 is increased, the water flow is smooth, the impact of the water flow on the pipe wall can be reduced, and the resistance when the water flow falls is eliminated.

The end water outlet section 83 can be a structure which can be detachably mounted at the bottom of the horizontal water outlet section 81 close to the inclined water outlet section 82, the complexity of the integral structure of the water inlet pipe 7 and the water outlet pipe 8 can be reduced by the detachable mounting mode, and the water inlet pipe 7 and the water outlet pipe 8 are more conveniently mounted.

As shown in fig. 4, in order to circulate the cooling water into the tilting shaft 3, the cooling water enters the water inlet pipe 7 and comes out of the water outlet pipe 8, the water outlet 13 of the water outlet pipe 8 is connected with the first temperature measurer 14, the first temperature measurer 14 is connected with the filter 15, the filter 15 is connected with the cooler 16, the cooler 16 is connected with the controller 17, meanwhile, the water inlet 12 of the water inlet pipe 7 is connected with the booster pump 21, the booster pump 21 is connected with the second temperature measurer 20, wherein the second temperature measurer 20 is connected with the flow meter 19, the flow meter 19 is further connected with the control valve 18, and the control valve 18 is connected with the controller 17;

wherein, the first temperature measurement device 14 measures the temperature of the outlet water, the second temperature measurement device 20 measures the temperature of the inlet water, the filter 15 removes impurities in the cooling process, the circulating water treated by the filter 15 has no impurities, and the circulating water entering the cooler 16 is ensured to be clean, so that the cooler 10 works stably and reliably, and the flowmeter 19 measures the flow rate of the inlet water.

The difference value between the water outlet temperature and the water inlet temperature is delta t, the flow of inlet water can be measured through the flow meter 19, the temperature difference value between the inlet water and the outlet water is measured through the first temperature measurer 14 and the second temperature measurer 20, wherein the inlet water temperature is generally 0-20 ℃, the temperature difference water inlet return temperature delta t between the water inlet pipe 7 and the water outlet pipe 8 is set according to the cooling requirement, the temperature difference delta t1 measured by the first temperature measurer 14 and the second temperature measurer 20 is actually monitored, when delta t1 > -delta t, the flow of cooling water of the water inlet pipe 7 can be increased through the control valve 18, and when delta t1 < deltat, the flow of the cooling water of the water inlet pipe 7 can be reduced, so that the effective cooling of the tilting shaft 3 can be met, meanwhile, waste is avoided, and therefore, the flow of the water resource of the cooling water should be adjusted.

In addition, if the flow velocity and flow rate of water are too large, the loss of the cooled water after entering the cooling pipe 7 is large, the cooling efficiency is low, and water resources are wasted; if the pressure and the flow of water are too small, the tilting shaft 3 cannot be cooled timely, and because the front end of the tilting shaft 3 is in a high-temperature state for a long time, the inside of the tilting shaft 3 cannot be cooled timely and fully, the temperature of the tilting shaft 3 still rises, so that the pressure and the flow of water flow need to be controlled reasonably, the water inlet pressure range is 0.3-1.5Mpa, the water return pressure range is 0.2-1.2Mpa, the flow range of water inlet and return is 10-120m each hour, the water flow and the water pressure range value can improve the cooling effect, and meanwhile, the good stability and the good effect of the return water are met.

The embodiments in the present specification are described in a progressive manner, and the same or similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure.