CN218031424U

CN218031424U - Needle type throttle valve capable of regulating speed

Info

Publication number: CN218031424U
Application number: CN202221505024.9U
Authority: CN
Inventors: 王亮; 郭凯
Original assignee: Jinan Longli Hydraulic Device Co ltd
Current assignee: Jinan Longli Hydraulic Device Co ltd
Priority date: 2022-06-16
Filing date: 2022-06-16
Publication date: 2022-12-13
Anticipated expiration: 2032-06-16

Abstract

The utility model discloses a pin type choke valve that can carry out speed governing relates to the choke valve field. The utility model provides a needle type choke valve that can carry out speed governing, includes the valve body of inlet, liquid outlet, still includes: the lower valve seat is rotatably connected to a position close to the liquid outlet in the valve cavity of the valve body through threads; the upper valve seat is connected in the valve cavity of the valve body in a sliding manner at a position far away from the liquid outlet; the driving sleeve is tightly attached to the upper end face of the upper valve seat; the fixing nut is rotationally connected to the driving sleeve and is in threaded connection with the valve body; the utility model discloses not only can make the case vertically remove from top to bottom, can also play spacing effect to the case, make the case can not collect together at will under the impact of rivers, the effectual stability that improves the case increases its life.

Description

Needle type throttle valve capable of regulating speed

Technical Field

The utility model belongs to the technical field of the choke valve, specifically speaking relates to a pin type choke valve that can carry out the speed governing.

Background

The needle type throttle valve is connected on a throttle pipeline, the throttle valve is controlled to cause resistance to liquid flow through the flow to generate back pressure, so that fluid in a well flows out under a controlled state, the flow is regulated by rotating a hand wheel to drive a valve core to move, and the flow area of the fluid passing through a valve seat is changed to play a role in speed regulation.

Although current needle type choke valve has simple structure, easy to maintain, low cost's characteristics, nevertheless also has the problem of stability inadequately, and at the during operation, the case is because being in unsettled state, consequently vibrates seriously under high-speed fluidic impact to the cracked condition of case takes place easily, and these shortcomings are especially outstanding under high pressure work condition, in view of this special the utility model discloses provide.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in overcoming the not enough of prior art, provides one kind can overcome above-mentioned problem or solve the above-mentioned problem at least partially a pin type choke valve that can carry out the speed governing.

In order to solve the technical problem, the utility model adopts the following basic concept: the utility model provides a can carry out needle type choke valve of speed governing, includes the valve body of inlet, liquid outlet, still includes: the lower valve seat is rotatably connected to a position close to the liquid outlet in the valve cavity of the valve body through threads; the upper valve seat is connected in the position, far away from the liquid outlet, in the valve cavity of the valve body in a sliding manner; the driving sleeve is tightly attached to the upper end face of the upper valve seat; the fixing nut is rotationally connected to the driving sleeve and is in threaded connection with the valve body; the vertical rods are symmetrically and fixedly connected to two sides of the upper end of the lower valve seat, and the upper ends of the vertical rods are inserted into the grooves in the bottom of the upper valve seat; the valve core is arranged in the valve cavity of the valve body and close to the liquid outlet; the T-shaped block is connected to the vertical rod in a sliding mode and is fixedly connected with the valve core; the driving mechanism is used for driving the T-shaped block to move up and down and is arranged in the driving sleeve, wherein the driving end of the driving mechanism extends downwards into the valve cavity of the valve body and is connected with the T-shaped block.

Further, actuating mechanism includes dwang, turbine, worm, transfer line, carousel, the dwang rotates to be connected in the drive cover, and the lower extreme extends into in the valve pocket of valve body, be equipped with the thread groove in the T type piece, the lower extreme of dwang passes through the thread rotation and connects in the thread groove of T type piece, turbine fixed connection is in the upper end of dwang, the transfer line rotates the position of connecting in the drive cover near the turbine, worm fixed connection on the transfer line, and with the turbine meshes mutually, fixedly connected with transmission bevel gear on the transfer line, the carousel rotates to be connected in the position of being close to the transfer line in drive cover upper end, and with transmission bevel gear meshes mutually through initiative bevel gear.

In order to facilitate the more laborsaving rotation dwang of staff, further, the dwang has cup jointed tension spring near the upper end of T type piece, tension spring's both ends respectively with last disk seat, T type piece fixed connection.

In order to improve the air tightness of the throttling valve, the upper end of the outer wall of the lower valve seat is fixedly connected with a first annular sealing gasket, the upper end of the inner wall of the lower valve seat is fixedly connected with a second annular sealing gasket, the outer wall of the upper valve seat is fixedly connected with a third annular sealing gasket, and the inner wall of the upper valve seat is rotatably connected with the rotating rod through a sealing bearing.

In order to avoid causing this choke valve to take place to damage because pressure is too big, still furtherly, the one end that the inlet was kept away from to the valve body is equipped with the pressure release mouth, fixedly connected with relief valve on the pressure release mouth, the lateral wall that the valve body is close to the liquid outlet is equipped with the opening, communicate through the connecting pipe between the leakage fluid dram and the opening of relief valve.

In order to improve the stability of the valve core, further, the T-shaped block and the valve core are integrally formed.

After the technical scheme is adopted, compared with the prior art, the utility model following beneficial effect has: the utility model discloses a make the vertical sliding connection of T type piece on the montant, not only can make the case vertically move about can only, can also play spacing effect to the case, make the case can not collect together at will under the impact of rivers and move, the effectual stability that improves the case increases its life.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

In the drawings:

fig. 1 is a schematic perspective view of a needle-type throttle valve capable of adjusting speed according to the present invention;

fig. 2 is a schematic structural view of a needle type throttle valve capable of speed regulation according to the present invention;

fig. 3 is a schematic structural view of a portion a in fig. 2 of a needle-type throttle valve capable of adjusting speed according to the present invention;

fig. 4 is a schematic structural view of a portion B in fig. 2 of the needle-type throttle valve capable of adjusting speed according to the present invention;

fig. 5 is a schematic structural diagram of a turbine and a worm in the needle type throttle valve capable of adjusting speed according to the present invention.

In the figure: 1. a valve body; 101. a liquid inlet; 102. a liquid outlet; 2. a lower valve seat; 3. a T-shaped block; 4. a valve core; 6. a vertical rod; 7. a first annular seal; 8. a second annular seal; 9. rotating the rod; 10. an upper valve seat; 11. a driving sleeve; 12. fixing a nut; 13. a turbine; 14. a worm; 15. a turntable; 16. a pressure relief valve; 17. a connecting pipe; 18. a third annular seal; 19. a tension spring.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.

Example 1:

referring to fig. 1-5, a needle type throttle valve capable of regulating speed includes a valve body 1 having a liquid inlet 101 and a liquid outlet 102, and further includes: the lower valve seat 2 is rotatably connected to a position close to the liquid outlet 102 in the valve cavity of the valve body 1 through threads; the upper valve seat 10 is connected in a sliding way at a position far away from the liquid outlet 102 in the valve cavity of the valve body 1; the driving sleeve 11 is tightly attached to the upper end face of the upper valve seat 10; the fixed nut 12 is rotationally connected to the driving sleeve 11 and is in threaded connection with the valve body 1; the vertical rods 6 are symmetrically and fixedly connected to two sides of the upper end of the lower valve seat 2, and the upper ends of the vertical rods are inserted into the grooves in the bottom of the upper valve seat 10; the valve core 4 is arranged in the valve cavity of the valve body 1 and close to the liquid outlet 102; the T-shaped block 3 is connected to the vertical rod 6 in a sliding manner and is fixedly connected with the valve core 4; the driving mechanism is used for driving the T-shaped block 3 to move up and down and is arranged in the driving sleeve 11, wherein the driving end of the driving mechanism extends downwards into the valve cavity of the valve body 1 and is connected with the T-shaped block 3;

actuating mechanism includes dwang 9, worm wheel 13, worm 14, the transfer line, carousel 15, dwang 9 rotates to be connected in drive sleeve 11, and the lower extreme extends into in the valve pocket of valve body 1, be equipped with the thread groove in the T type piece 3, the lower extreme of dwang 9 passes through the thread and rotates the connection in the thread groove of T type piece 3, worm wheel 13 fixed connection is in the upper end of dwang 9, the transfer line rotates the position of connecting in drive sleeve 11 near worm wheel 13, worm 14 fixed connection is on the transfer line, and mesh mutually with worm wheel 13, fixedly connected with transmission bevel gear on the transfer line, carousel 15 rotates to be connected in the position that the drive sleeve 11 upper end is close to the transfer line, and mesh mutually through the initiative bevel gear with transmission bevel gear.

When the throttling valve is used, a worker firstly connects the liquid inlet 101 and the liquid outlet 102 of the throttling valve with through holes of two conveying pipelines which need to be connected with the outside, after connection, the throttling valve can be put into use, when the flow rate of liquid in the conveying pipelines needs to be changed, at the moment, the handle on the rotary table 15 is rotated, then the rotary table 15 can drive the driven bevel gear to rotate through the driving bevel gear in a drawing, then the driving bevel gear can drive the worm 14 to rotate through the transmission rod, the worm 14 drives the turbine 13 to rotate, the turbine 13 drives the rotary rod 9 to rotate, then the rotary rod 9 can drive the T-shaped block 3 to move up and down under the matching of the vertical rod 6, so that the valve core 4 can move up and down, the distance between the valve core 4 and the lower valve seat 2 can be changed, the flow rate of liquid can be adjusted, the vertical sliding connection of the T-shaped block 3 on the vertical rod 6 can enable the valve core 4 to vertically move up and down, a limiting effect can be achieved on the valve core 4, and the valve core 4 can not move under the impact of water flow, the stability of the throttling valve core 4 is effectively improved, and the service life of the throttling valve is prolonged.

Example 2:

referring to fig. 1-5, a needle type throttle valve capable of speed regulation is basically the same as that of embodiment 1, and further comprises: the upper end of the rotating rod 9 close to the T-shaped block 3 is sleeved with a tension spring 19, two ends of the tension spring 19 are fixedly connected with the upper valve seat 10 and the T-shaped block 3 respectively, and an upward tension can be exerted on the T-shaped block 3 all the time through the arrangement of the tension spring 19, so that when the valve core 4 needs to be moved upwards to change the flow rate, a worker needs to use a larger force to rotate the rotating rod 9 because liquid in a valve cavity can exert a downward pressure on the valve core 4, and an upward force is exerted on the T-shaped block 3 through the tension spring 19, a part of force used by the worker to rotate the rotating disk 15 can be reduced, and convenience is provided for the worker;

the upper end of the outer wall of the lower valve seat 2 is fixedly connected with a first annular sealing gasket 7, the upper end of the inner wall of the lower valve seat 2 is fixedly connected with a second annular sealing gasket 8, the outer wall of the upper valve seat 10 is fixedly connected with a third annular sealing gasket 18, the inner wall of the upper valve seat 10 is rotatably connected with the rotating rod 9 through a sealing bearing, through the arrangement of the first annular sealing gasket 7 and the third annular sealing gasket 18, the air tightness between the lower valve seat 2 and the upper valve seat 10 and the valve body 1 can be improved, through the arrangement of the second annular sealing gasket 8, when the valve core 4 is closed, the air tightness between the valve core 4 and the lower valve seat 2 can be improved, through the arrangement of the sealing bearing, under the condition that the rotation of the rotating rod 9 is not influenced, the air tightness between the rotating rod 9 and the upper valve seat 10 can also be improved, so that liquid is prevented from flowing out through gaps when in use, and the practicability of the throttling valve is effectively improved;

a pressure relief opening is formed in one end, far away from the liquid inlet 101, of the valve body 1, a pressure relief valve 16 is fixedly connected to the pressure relief opening, a through opening is formed in the side wall, close to the liquid outlet 102, of the valve body 1, a liquid outlet of the pressure relief valve 16 is communicated with the through opening through a connecting pipe 17, and through the arrangement of the pressure relief valve 16 and the connecting pipe 17, when the pressure in a valve cavity of the valve body 1 is large, the pressure relief effect can be achieved on the valve cavity, so that conveyed liquid is directly discharged through the liquid outlet 102 without passing through a valve core 4, the throttle valve is prevented from being damaged due to overlarge pressure, and the protection performance of the throttle valve is improved;

for the integrated into one piece design between T type piece 3 and case 4, through making T type piece 3 and case 4 be the integrated into one piece design, compare with current adoption welded connection technique, whole steadiness is better, has effectually prevented that case 4 from breaking the phenomenon emergence inside valve body 1.

The utility model discloses a make 3 vertical sliding connection of T type piece on montant 6, not only can make case 4 vertically move about only can, can also play spacing effect to case 4, make case 4 can not collect together at will under the impact of rivers and move, the effectual stability that improves case 4 increases its life.

In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the preferred embodiment, it is not intended to limit the present invention, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention will still fall within the scope of the present invention.

Claims

1. The utility model provides a needle type choke valve that can carry out speed governing, includes valve body (1) of inlet (101), liquid outlet (102), its characterized in that still includes:

the lower valve seat (2) is rotatably connected to a position close to the liquid outlet (102) in the valve cavity of the valve body (1) through threads;

the upper valve seat (10) is connected to the position, far away from the liquid outlet (102), in the valve cavity of the valve body (1) in a sliding mode;

the driving sleeve (11) is tightly attached to the upper end face of the upper valve seat (10);

the fixing nut (12) is rotationally connected to the driving sleeve (11) and is in threaded connection with the valve body (1);

the vertical rods (6) are symmetrically and fixedly connected to two sides of the upper end of the lower valve seat (2), and the upper ends of the vertical rods are inserted into the grooves in the bottom of the upper valve seat (10);

the valve core (4) is arranged at a position close to the liquid outlet (102) in the valve cavity of the valve body (1);

the T-shaped block (3) is connected to the vertical rod (6) in a sliding manner and is fixedly connected with the valve core (4);

the driving mechanism for driving the T-shaped block (3) to move up and down is arranged in the driving sleeve (11),

the driving end of the driving mechanism extends downwards into a valve cavity of the valve body (1) and is connected with the T-shaped block (3).

2. The needle throttle valve capable of regulating speed according to claim 1, wherein: actuating mechanism includes dwang (9), turbine (13), worm (14), transfer line, carousel (15), dwang (9) rotate to be connected in driving sleeve (11), and the lower extreme extends into in the valve pocket of valve body (1), be equipped with the thread groove in T type piece (3), the lower extreme of dwang (9) passes through the thread to rotate the thread groove of connecting in T type piece (3), turbine (13) fixed connection is in the upper end of dwang (9), the transfer line rotates to be connected the position that is close to turbine (13) in driving sleeve (11), worm (14) fixed connection on the transfer line, and with turbine (13) mesh mutually, fixedly connected with transmission bevel gear on the transfer line, carousel (15) rotate to be connected the position that is close to the transfer line in driving sleeve (11) upper end, and with transmission bevel gear meshes mutually through initiative bevel gear.

3. The needle type throttle valve capable of regulating speed according to claim 2, wherein: and the upper end of the rotating rod (9) close to the T-shaped block (3) is sleeved with a tension spring (19), and the two ends of the tension spring (19) are respectively fixedly connected with the upper valve seat (10) and the T-shaped block (3).

4. A needle throttle valve capable of regulating speed according to claim 3, wherein: the outer wall upper end fixedly connected with first annular seal pad (7) of lower disk seat (2), the inner wall upper end fixedly connected with second annular seal pad (8) of lower disk seat (2), go up fixedly connected with third annular seal pad (18) on the outer wall of disk seat (10), go up and rotate through sealed bearing between the inner wall of disk seat (10) and dwang (9) and be connected.

5. The needle type throttle valve capable of regulating speed according to claim 4, wherein: the one end that inlet (101) were kept away from in valve body (1) is equipped with the pressure release mouth, fixedly connected with relief valve (16) on the pressure release mouth, the lateral wall that valve body (1) is close to liquid outlet (102) is equipped with the opening, communicate through connecting pipe (17) between the leakage fluid dram and the opening of relief valve (16).

6. The needle throttle valve capable of regulating speed according to claim 1, wherein: the T-shaped block (3) and the valve core (4) are integrally formed.