阅读说明：本技术 一种高压加氢截止止回阀 (High-pressure hydrogenation stop check valve ) 是由 李雨欣 李增生 荊红莉 李岩 李凡 于 2021-09-06 设计创作，主要内容包括：本发明公开了一种高压加氢截止止回阀,包括阀体和支架,所述支架上安装在阀体上,且所述支架和阀体之间通过两个连接机构相连接,所述阀体内安装有导向件,所述导向件上下贯穿设有与其滑动连接且不能够转动的阀杆,所述阀杆的下端固定连接有阀板,所述支架的上驱动箱,所述驱动箱内安装有驱动机构,所述连接机构包括与支架和阀体连接的第一连接块,所述第一连接块和第二连接块上均贯穿设有连接槽,所述连接槽内共同贯穿安装有与其内壁相抵的连接卡块。本发明不仅方便阀体与支架之间的安装拆卸,操作简单方便且快捷,安装后的稳定性足,同时,可以实现手动和电动控制阀板的上下移动,两者切换简单快捷,可以满足没电情况下对阀板的控制。(The invention discloses a high-pressure hydrogenation stop check valve, which comprises a valve body and a bracket, wherein the bracket is arranged on the valve body, the bracket is connected with the valve body through two connecting mechanisms, a guide part is arranged in the valve body, a valve rod which is connected with the guide part in a sliding manner and cannot rotate is arranged in the guide part in a penetrating manner from top to bottom, the lower end of the valve rod is fixedly connected with a valve plate, an upper driving box of the bracket is provided with a driving mechanism, the driving box is internally provided with a driving mechanism, the connecting mechanism comprises a first connecting block connected with the bracket and the valve body, the first connecting block and a second connecting block are respectively provided with a connecting groove in a penetrating manner, and a connecting clamping block which is abutted against the inner wall of the connecting groove is jointly installed in a penetrating manner. The valve plate can be conveniently installed and detached between the valve body and the support, the operation is simple, convenient and quick, the stability after installation is sufficient, meanwhile, the valve plate can be manually and electrically controlled to move up and down, the switching between the valve plate and the support is simple and quick, and the control on the valve plate under the condition of no electricity can be met.)

1. The utility model provides a high pressure hydrogenation stop check valve, includes valve body (1) and support (2), its characterized in that, install on valve body (1) on support (2), just be connected through two coupling mechanism between support (2) and valve body (1), install guide (3) in valve body (1), run through from top to bottom guide (3) be equipped with rather than sliding connection and can not pivoted valve rod (5), the lower extreme fixedly connected with valve plate (4) of valve rod (5), drive case (18) are installed to the upper end of support (2), install actuating mechanism in drive case (18).

2. The high-pressure hydrogenation stop check valve according to claim 1, characterized in that a bolt (7) is installed through the side wall of the valve body (1), and the bolt (7) is in threaded connection with the guide (3).

3. The high-pressure hydrogenation stop check valve according to claim 1, wherein the connecting mechanism comprises a first connecting block (8) and a second connecting block (9) connected with the bracket (2) and the valve body (1), the first connecting block (8) and the second connecting block (9) are both provided with a connecting groove in a penetrating manner, a connecting clamping block (11) abutting against the inner wall of the two connecting grooves is jointly installed in the two connecting grooves in a penetrating manner, the upper end of the connecting clamping block (11) is fixedly connected with a positioning block (10) abutting against the first connecting block (8), the side wall of the connecting clamping block (11) is provided with a side groove (12), a rack plate (13) is installed in the side groove (12), the second connecting block (9) is provided with a pull pin (15) in a penetrating manner, the pull pin (15) is slidably connected with the second connecting block (9), and a first spring (16) is fixedly connected between the pull pin (15) and the second connecting block (9), the first spring (16) is sleeved outside the pull pin (15), the pull pin (15) is fixedly connected with a latch (14), and the latch (14) is meshed with the rack plate (13).

4. The high-pressure hydrogenation stop check valve according to claim 1, wherein the driving mechanism comprises a threaded cylinder (19) penetrating through and rotatably connected with a side wall of the bottom of the driving box (18), the threaded cylinder (19) is internally threaded with a screw (6), the bottom of the screw (6) is fixedly connected with the upper end of the valve rod (5), the upper end of the threaded cylinder (19) is fixedly connected with a first bevel gear (20), a second bevel gear (21) meshed with the first bevel gear (20) is arranged on the first bevel gear (20), an electric power mechanism is arranged on the second bevel gear (21), the upper end of the first bevel gear (20) is fixedly connected with a driven block (31), the upper end of the driven block (31) is provided with a hexagonal groove (32), and the upper end of the driving box (18) is provided with a manual power mechanism matched with the hexagonal groove (32).

5. The high-pressure hydrogenation stop check valve according to claim 1, wherein the electric power mechanism comprises a stepping motor (17), an output end of the stepping motor (17) is fixedly connected with a rotating rod (25), a rectangular groove (33) is arranged in the rotating rod (25), a driving rod (34) is slidably connected in the rectangular groove (33), a positioning mechanism is arranged between the driving rod (34) and the rotating rod (25), and the driving rod (34) penetrates through the driving box (18) and is rotatably connected with the driving box.

6. The high-pressure hydrogenation stop check valve according to claim 5, characterized in that the driving rod (34) is composed of a rectangular rod and a round rod, and the rectangular rod is slidably connected in the rectangular groove (33).

7. The high-pressure hydrogenation stop check valve according to claim 6, wherein the positioning mechanism comprises a pin groove (35) formed in the rectangular rod, a fixed pin (36) slidably connected with the rotating rod (25) penetrates through the rotating rod (25), the fixed pin (36) abuts against the inner wall of the pin groove (35), a second spring (37) is fixedly connected between the fixed pin (36) and the rotating rod (25), and the second spring (37) is sleeved outside the fixed pin (36).

8. The high-pressure hydrogenation stop check valve according to claim 4, wherein the manual power mechanism comprises a vertical rod (22) penetrating through the upper end of the driving box (18) and slidably connected with the driving box, the upper end of the vertical rod (22) is fixedly connected with a pull block (23), a third spring (24) is fixedly connected between the pull block (23) and the driving box (18), the third spring (24) is sleeved outside the vertical rod (22), a vertical block (30) is fixedly connected with the bottom of the vertical rod (22), a hexagonal prism (27) is arranged below the vertical block (30), a guide groove (28) is formed in the upper end of the hexagonal prism (27), the vertical block (30) is slidably connected with the inner wall of the guide groove (28), and a fourth spring (29) is fixedly connected between the vertical block (30) and the inner bottom of the guide groove (28).

Technical Field

The invention relates to the technical field of check valves, in particular to a high-pressure hydrogenation stop check valve.

Background

The high-pressure hydrogenation process is an important process for petroleum deep processing, and can improve the recovery rate of light oil of unit crude oil and improve the quality of fuel oil, thereby improving the overall benefit of an oil refinery. The hydrogenation valve is an important pipeline element of a hydrogenation system in petroleum refining industrial production, and a medium of the hydrogenation valve has the following characteristics:

1. high temperature and high pressure, wherein the operating pressure is generally 14-20 MPa or higher;

2. the medium is inflammable and explosive, and the danger of hydrogen or the mixed gas of oil gas and hydrogen is great;

3. the corrosive hydrogen gas is a medium that can penetrate into the interior of a metal material and cause the material to denature (deteriorate) at normal or high temperatures. It can cause reactive corrosion cracking of many metal materials at normal temperature and can cause rapid and uniform corrosion of metal materials at high temperature;

the support and the valve body of the common hydrogenation stop check valve are connected through bolts, so that a plurality of bolts are needed for ensuring reliable connection, the assembly and disassembly are inconvenient, and the assembly efficiency is low; therefore, a high-pressure hydrogenation stop check valve is designed.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a high-pressure hydrogenation stop check valve which is convenient to mount and dismount between a valve body and a support, simple, convenient and quick to operate, sufficient in stability after mounting, capable of realizing manual and electric control of up and down movement of a valve plate, simple and quick to switch, and capable of meeting the control on the valve plate under the condition of no electricity.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a high pressure hydrogenation stop check valve, includes valve body and support, install on the support on the valve body, just be connected through two coupling mechanism between support and the valve body, install the guide in the valve body, the guide runs through from top to bottom be equipped with rather than sliding connection and can not pivoted valve rod, the lower extreme fixedly connected with valve plate of valve rod, the drive case is installed to the upper end of support, install actuating mechanism in the drive case.

Preferably, a bolt is installed through the side wall of the valve body, and the bolt is in threaded connection with the guide piece.

Preferably, coupling mechanism includes first connecting block and the second connecting block be connected with support and valve body, all run through on first connecting block and the second connecting block and be equipped with the spread groove, two run through jointly in the spread groove and install the connection fixture block rather than the inner wall counterbalance, the upper end fixedly connected with of connecting the fixture block and the locating piece that first connecting block counterbalance, the lateral wall of connecting the fixture block is equipped with the side channel, rack plate is installed to the side channel, run through on the second connecting block and be equipped with the rag pin rather than sliding connection, the first spring of fixedly connected with between rag pin and the second connecting block, first spring housing is in the outside of rag pin, fixedly connected with latch on the rag pin, latch and rack plate mesh mutually.

Preferably, the driving mechanism comprises a threaded cylinder which penetrates through the side wall of the bottom of the driving box and is rotatably connected with the side wall of the bottom of the driving box, a screw rod is connected with the threaded cylinder in a threaded manner, the bottom of the screw rod is fixedly connected with the upper end of the valve rod, a first bevel gear is fixedly connected with the upper end of the threaded cylinder, a second bevel gear meshed with the first bevel gear is arranged on the first bevel gear, an electric power mechanism is arranged on the second bevel gear, a driven block is fixedly connected with the upper end of the first bevel gear, a hexagonal groove is formed in the upper end of the driven block, and a manual power mechanism matched with the hexagonal groove is arranged at the upper end of the driving box.

Preferably, electric power unit includes step motor, step motor's output fixedly connected with dwang, be equipped with the rectangular channel in the dwang, sliding connection has the actuating lever in the rectangular channel, the actuating lever with the dwang between be equipped with positioning mechanism, the actuating lever runs through the drive case and is connected rather than rotating.

Preferably, the driving rod consists of a rectangular rod and a round rod, and the rectangular rod is connected in a sliding mode in the rectangular groove.

Preferably, positioning mechanism is including setting up the keyway on the rectangle pole, run through on the dwang and be equipped with rather than sliding connection's fixed pin, the fixed pin offsets with the inner wall in keyway, fixedly connected with second spring between fixed pin and the dwang, the second spring housing is in the outside of fixed pin.

Preferably, manual power unit is including running through the drive case upper end and rather than sliding connection's montant, the upper end fixedly connected with of montant draws the piece, draw fixedly connected with third spring between piece and the drive case, the third spring housing is in the outside of montant, the bottom fixedly connected with of montant erects the piece, the below of erecting the piece is equipped with hexagonal prism, hexagonal prism's upper end is equipped with the guide way, erect the piece and the inner wall sliding connection of guide way, fixedly connected with fourth spring between the interior bottom of erecting the piece and the guide way.

Compared with the prior art, the invention has the beneficial effects that:

1. when the threaded cylinder rotates, the screw rod, the valve rod and the valve plate can move upwards or downwards, so that the valve plate can be controlled to move up and down, the overall closing of the valve can be controlled, and the valve is high in stability and easy to operate.

2. Manual pulling fixed pin, make the fixed pin break away from the keyway, then the pulling handle, make second bevel gear and first bevel gear separation, then the staff moves down to press and draws the piece and rotate, draw the piece and move down and drive hexagonal prism downstream, hexagonal prism downstream offsets with the driven piece, and the fourth spring at this moment is compressed, it realizes the montant to rotate the piece that draws, erect piece and hexagonal prism rotate, it is relative with hexagonal groove to rotate hexagonal prism, under the effect of fourth spring, hexagonal prism card goes into hexagonal inslot, so the hexagonal prism rotates and can drive the driven piece, first bevel gear, the screw thread section of thick bamboo rotates, thereby can reciprocate of manual control valve plate, can satisfy the user demand, also can reduce the unnecessary loss.

3. If when needing to dismantle support and valve body, the staff outwards stimulates the draw pin and makes the latch not offset with the rack board, so connect the fixture block no longer by spacing to can upwards take off the connection fixture block, so no longer by spacing between first connecting block and the second connecting block, can realize the dismantlement of support and valve body, easy operation is convenient and efficient.

In conclusion, the valve plate can be conveniently installed and detached between the valve body and the support, the operation is simple, convenient and quick, the stability after installation is sufficient, meanwhile, the valve plate can be manually and electrically controlled to move up and down, the switching between the valve plate and the support is simple and quick, and the control on the valve plate under the condition of no electricity can be met.

Drawings

FIG. 1 is a schematic structural diagram of a high-pressure hydrogenation stop check valve according to the present invention;

FIG. 2 is a schematic structural diagram of a connection mechanism in a high-pressure hydrogenation stop check valve according to the present invention;

FIG. 3 is a schematic structural diagram of a manual power mechanism in the high-pressure hydrogenation stop check valve according to the present invention;

FIG. 4 is a schematic structural diagram of a positioning mechanism in a high-pressure hydrogenation stop check valve according to the present invention;

FIG. 5 is a schematic structural diagram of a follower block in a high-pressure hydrogenation stop check valve according to the present invention.

In the figure: the valve body, the support 2, the guide 3, the valve plate 4, the valve rod 5, the screw 6, the bolt 7, the first connecting block 8, the second connecting block 9, the locating block 10, the connecting clamping block 11, the side groove 12, the rack plate 13, the clamping teeth 14, the pull pin 15, the first spring 16, the stepping motor 17, the driving box 18, the threaded barrel 19, the first bevel gear 20, the second bevel gear 21, the vertical rod 22, the pull block 23, the third spring 24, the rotating rod 25, the handle 26, the hexagonal prism 27, the guide groove 28, the fourth spring 29, the vertical block 30, the driven block 31, the hexagonal groove 32, the rectangular groove 33, the driving rod 34, the pin groove 35, the fixed pin 36 and the second spring 37.

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 only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-5, a high-pressure hydrogenation stop check valve comprises a valve body 1 and a support 2, the support 2 is mounted on the valve body 1, and the support 2 and the valve body 1 are connected through two connecting mechanisms, each connecting mechanism comprises a first connecting block 8 and a second connecting block 9 connected with the support 2 and the valve body 1, the first connecting block 8 and the second connecting block 9 are both provided with a connecting groove in a penetrating manner, a connecting clamping block 11 abutting against the inner wall of the connecting clamping block is mounted in the two connecting grooves in a penetrating manner, the upper end of the connecting clamping block 11 is fixedly connected with a positioning block 10 abutting against the first connecting block 8, the side wall of the connecting clamping block 11 is provided with a side groove 12, a rack plate 13 is mounted in the side groove 12, a pull pin 15 connected with the second connecting block 9 in a penetrating manner, a first spring 16 is fixedly connected between the pull pin 15 and the second connecting block 9, the first spring 16 is sleeved outside the pull pin 15, the pull pin 15 is fixedly connected with a latch 14, and the latch 14 is meshed with the rack plate 13.

A guide piece 3 is arranged in the valve body 1, a bolt 7 is arranged on the side wall of the valve body 1 in a penetrating way, and the bolt 7 is in threaded connection with the guide piece 3; the guide piece 3 is provided with a valve rod 5 which is connected with the guide piece in a sliding way and can not rotate up and down in a penetrating way, and the lower end of the valve rod 5 is fixedly connected with a valve plate 4.

The upper end of support 2 is installed drive box 18, installs actuating mechanism in the drive box 18, and actuating mechanism is including running through drive box 18 bottom lateral wall and rather than the screw thread section of thick bamboo 19 of being connected of rotating, and screw rod 6 is connected to screw thread section of thick bamboo 19 internal thread, and the bottom of screw rod 6 and the upper end fixed connection of valve rod 5, the upper end fixed connection of screw thread section of thick bamboo 19 has first bevel gear 20, is equipped with on the first bevel gear 20 rather than the second bevel gear 21 of meshing.

Install electric power unit on the second bevel gear 21, electric power unit includes step motor 17, and step motor 17's output fixedly connected with dwang 25 is equipped with rectangular channel 33 in the dwang 25, and sliding connection has actuating lever 34 in the rectangular channel 33, and actuating lever 34 comprises rectangular pole and round bar, and the rectangular pole is sliding connection in rectangular channel 33.

A positioning mechanism is arranged between the driving rod 34 and the rotating rod 25, the driving rod 34 penetrates through the driving box 18 and is connected with the driving box in a rotating mode, the driving rod 34 and the driving box 18 do not rotate through a bearing, namely the driving rod 34 penetrates through the driving box 18 and can rotate and slide, a handle 26 is arranged on the driving rod 34, and the driving rod 34 is convenient to move; specifically, positioning mechanism is including setting up the keyway 35 on the rectangular rod, runs through on the dwang 25 to be equipped with rather than sliding connection's fixed pin 36, and fixed pin 36 offsets with the inner wall of keyway 35, fixedly connected with second spring 37 between fixed pin 36 and the dwang 25, and second spring 37 cover is in the outside of fixed pin 36.

The upper end of the first bevel gear 20 is fixedly connected with a driven block 31, the upper end of the driven block 31 is provided with a hexagonal groove 32, the upper end of the driving box 18 is provided with a manual power mechanism matched with the hexagonal groove 32, specifically, the pull block 23 is pressed downwards and rotates, the pull block 23 moves downwards to drive the hexagonal prism 27 to move downwards, the hexagonal prism 27 moves downwards to abut against the driven block 31, the fourth spring 29 is compressed at the moment, the rotation of the pull block 23 realizes the rotation of the vertical rod 22, the vertical block 30 and the hexagonal prism 27, when the hexagonal prism 27 rotates to be opposite to the hexagonal groove 32, the hexagonal prism 27 is clamped into the hexagonal groove 32 under the action of the fourth spring 29, and thus the rotation of the hexagonal prism 27 can drive the driven block 31, the first bevel gear 20 and the threaded cylinder 19 to rotate, and the up-and-down movement of the valve plate 4 can be manually controlled.

The manual power mechanism comprises a vertical rod 22 which penetrates through the upper end of the driving box 18 and is in sliding connection with the driving box, the upper end of the vertical rod 22 is fixedly connected with a pulling block 23, a third spring 24 is fixedly connected between the pulling block 23 and the driving box 18, a bearing is arranged on the driving box 18, the bottom of the third spring 24 is fixedly connected with an inner ring of the bearing, and the pulling block 23 rotates to drive the third spring 24 to synchronously rotate, so that torsion is not generated; the third spring 24 is sleeved outside the vertical rod 22, a vertical block 30 is fixedly connected to the bottom of the vertical rod 22, a hexagonal prism 27 is arranged below the vertical block 30, a guide groove 28 is formed in the upper end of the hexagonal prism 27, the vertical block 30 is slidably connected with the inner wall of the guide groove 28, and a fourth spring 29 is fixedly connected between the vertical block 30 and the inner bottom of the guide groove 28.

When the valve is used, the stepping motor 17 is started, the stepping motor 17 works to drive the rotating rod 25, the driving rod 34, the second bevel gear 21, the first bevel gear 20 and the threaded cylinder 19 to rotate, and the valve plate 4 and the valve rod 5 cannot rotate, so that the screw rod 6 cannot rotate, and the threaded cylinder 19 can move upwards or downwards when rotating, so that the valve plate 4 can be controlled to move upwards and downwards, the integral closing of the valve can be controlled, and the valve is high in stability and easy to operate;

if the electric power system is damaged, the stepping motor 17 cannot work, and at the moment, the valve plate 4 needs to be controlled, a worker can manually pull the fixing pin 36 to enable the fixing pin 36 to be separated from the pin groove 35, then pull the handle 26 to enable the second bevel gear 21 to be separated from the first bevel gear 20, then the worker can push the pull block 23 downwards and rotate, the pull block 23 moves downwards to drive the hexagonal prism 27 to move downwards, the hexagonal prism 27 moves downwards to abut against the driven block 31, the fourth spring 29 is compressed at the moment, the pull block 23 is rotated to enable the vertical rod 22, the vertical block 30 and the hexagonal prism 27 to rotate, when the hexagonal prism 27 rotates to be opposite to the hexagonal groove 32, the hexagonal prism 27 is clamped into the hexagonal groove 32 under the action of the fourth spring 29, so that the hexagonal prism 27 rotates to drive the driven block 31, the first bevel gear 20 and the threaded barrel 19 to rotate, and the up and down movement of the valve plate 4 can be manually controlled, the use requirement can be met, and unnecessary loss can be reduced;

if when needing to dismantle support 2 and valve body 1, the staff outwards stimulates the blind pin 15 and makes latch 14 not offset with rack plate 13, so connect fixture block 11 no longer by spacing to can upwards take off connecting fixture block 11, so no longer by spacing between first connecting block 8 and the second connecting block 9, can realize the dismantlement of support 2 and valve body 1, easy operation is convenient and efficient.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.