CN221221549U - Natural gas separate-transmission opening and closing valve - Google Patents

Abstract

The utility model relates to a natural gas separate-transmission opening and closing valve, which comprises a valve body and a valve clack, and is characterized in that: be provided with air inlet and gas outlet on the valve body, the two separates through the valve clack, the inside valve plug that is provided with of valve body, the valve plug with the valve clack passes through spring coupling, still includes actuating mechanism, actuating mechanism includes drive shaft and actuating assembly, drive shaft one end rotate connect in the valve plug surface, the other end extends to the valve body is outside, and with actuating assembly connects, the drive actuating assembly can promote the valve plug is followed valve body axial motion, and then adjusts the effort between valve clack and the valve body, stretches into or stretches out through adjusting the drive shaft, and then extrudees or pulls back the valve plug, has changed the interval distance between valve plug and the valve clack to make spring elasticity change, and then make the check pressure of check valve adjustable, and for linear regulation, make the application scope of this design more extensive, and promoted its interchangeability.

Description

Natural gas separate-transmission opening and closing valve

Technical Field

The utility model relates to the field of opening and closing valves, in particular to a natural gas separate-transmission opening and closing valve.

Background

Various gases naturally formed in natural gas in nature, including oilfield gas, gas field gas, mud-fire mountain gas, bio-generated gas and the like, are mainly present in underground rock reservoirs and mainly comprise hydrocarbons, and in natural gas transportation, various valves are commonly used together to ensure safety and stability of gas transmission, such as stop valves, check valves and the like.

The closer to the air source, the larger the air pressure is, the more the air pressure is stable, so that the check valves with different specifications are generally selected according to different pressure values in the selection of the check valves, and the check valves applied to specific positions in pipeline transportation cannot be used interchangeably, so that the waste of the valves is caused.

Disclosure of utility model

The utility model aims to solve the technical problem of providing a natural gas separate-transmission start-stop valve aiming at the defects of the prior art.

The technical scheme adopted by the utility model is as follows: including valve body and valve clack, be provided with air inlet and gas outlet on the valve body, the two separates through the valve clack, the valve body is inside to be provided with the valve plug, the valve plug with the valve clack passes through spring coupling, still includes actuating mechanism, actuating mechanism includes drive shaft and actuating assembly, drive shaft one end rotate connect in the valve plug surface, the other end extends to the valve body is outside, and with actuating assembly connects, the drive actuating assembly can promote the valve plug is followed valve body axial motion, and then adjusts the effort between valve clack and the valve body, and valve plug accessible spring force effect gives petal certain pressure for controllable gaseous gas transmission volume when the natural gas transportation, in addition, through drive shaft drive valve plug at the inside motion of valve body, and then changes the interval between valve plug and the valve clack, is applied with the adjustable pressure of valve clack, and then is suitable for more service scenarios.

Preferably, the valve body top is provided with the through-hole, the drive shaft passes the through-hole stretches into inside the valve body, and with the valve plug rotates to be connected, the valve body with be provided with guide assembly between the valve plug, the drive assembly can push and pull the valve plug is followed guide assembly is axial motion, can guide the valve plug through the guide assembly that sets up and is axial motion in the valve body, has reduced the rotation each other between valve body and the valve plug, and then has promoted the leakproofness of both.

Preferably, the through hole is the screw hole, the drive shaft surface is provided with the external screw thread, and the two passes through threaded connection, through threaded connection for whole linear control range, and then more accurate.

Preferably, the guide assembly comprises a guide groove arranged on the inner side wall of the valve body and a guide lug arranged on the valve plug.

Preferably, the guide groove is in a shape of a C, and the guide lugs are arranged in the guide groove in a matching manner.

Preferably, the driving assembly comprises a driving wheel, the driving wheel is fixed at the end part of the driving shaft, the driving wheel can be rotated to drive the driving shaft to rotate, the valve plug is pushed to move, the driving wheel is manually adjusted, the internal pressure can be sensed more intuitively, and the whole pressure can be adjusted more easily.

Compared with the prior art, the utility model has the beneficial effects that:

According to the utility model, the drive shaft is adjusted to extend into or extend out, so that the valve plug is extruded or pulled back, the interval distance between the valve plug and the valve clack is changed, the elastic force of the spring is changed, the check pressure of the check valve is adjustable, and the check pressure is linearly adjustable, so that the application range of the design is wider, and the interchangeability of the design is improved.

Drawings

Fig. 1 is a schematic cross-sectional structure of the present utility model.

FIG. 2 is a schematic diagram of a valve plug according to the present utility model.

Illustration of:

10. A valve body; 20. a valve flap; 30. an air inlet; 40. an air outlet; 50. a valve plug; 60. a spring; 70. a driving mechanism; 101. a guide groove; 501. a guide lug; 701. a drive shaft; 702 drive the wheel.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Examples

Referring to fig. 1, the natural gas separate-transmission start-stop valve according to this embodiment includes a valve body 10, the valve body 10 is in an inverted T-shaped structure, two ends of the bottom are an air inlet 30 and an air outlet 40, the air inlet 30 and the air outlet 40 are separated by a valve clack 20, the middle of the valve body 10 is a pressure regulating end, a valve plug 50 is disposed in the pressure regulating end, the valve plug 50 is driven by a driving mechanism 70, the driving mechanism 70 includes a driving shaft 701 and a driving assembly, the valve plug 50 is connected with the valve clack 20 by a spring 60, the other side of the valve plug 50 is rotationally connected with the driving shaft 701, the other end of the driving shaft 701 extends towards the outside of the valve body 10, a driving wheel 702 is disposed at the end of the driving shaft 701, the driving shaft 701 is driven by the driving wheel 702 to further push the valve plug 50 to axially move along the pressure regulating end, and the interval distance between the valve plug 50 and the valve clack 20 is changed, thereby controlling the elasticity of the spring 60.

It will be appreciated that there is a sealing arrangement between the valve plug 50 and the valve body 10, where the sealing arrangement is as usual a cylinder to piston seal.

Further, a threaded hole is formed in the top of the valve body 10, the driving shaft 701 is a threaded shaft, the threaded shaft and the threaded shaft are matched with each other, and the driving shaft 701 can be driven to axially move by rotating the driving wheel 702, so that the overall adjustment precision is higher, and the pressure range between the controlled valve clack 20 and the valve body 10 is wider.

Further, referring to fig. 2, the valve plug 50 is circular, and the side edges thereof are symmetrically provided with guide lugs 501, and in addition, since the sealing performance between the valve plug 50 and the valve body 10 is required, the valve body 10 is internally provided with a guide groove 101, and the guide groove 101 and the guide lugs 501 have the same shape, and are both in a shape of "C".

Further, when the gas pressure between the gas inlet 30 and the gas outlet 40 is not required to be regulated, the gas inlet 30 is only required to be communicated with the gas outlet end of the natural gas pipeline, and the gas outlet 40 is only required to be communicated with the gas inlet end of the natural gas pipeline.

It is noted that relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model 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 scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (6)

1. The utility model provides a natural gas divides defeated start-stop valve, includes valve body (10) and valve clack (20), its characterized in that: be provided with air inlet (30) and gas outlet (40) on valve body (10), the two separates through valve clack (20), valve body (10) inside is provided with valve plug (50), valve plug (50) with valve clack (20) are connected through spring (60), still include actuating mechanism (70), actuating mechanism (70) include drive shaft (701) and drive assembly, drive shaft (701) one end rotate connect in valve plug (50) surface, the other end extend to valve body (10) is outside, and with drive assembly connects, and the drive assembly can impel valve plug (50) are followed valve body (10) axial motion, and then adjust effort between valve clack (20) and valve body (10).

2. The natural gas partial delivery start-stop valve of claim 1, wherein: the valve is characterized in that a through hole is formed in the top of the valve body (10), the driving shaft (701) penetrates through the through hole, stretches into the valve body (10) and is rotationally connected with the valve plug (50), a guide assembly is arranged between the valve body (10) and the valve plug (50), and the driving assembly is driven to push and pull the valve plug (50) to axially move along the guide assembly.

3. The natural gas partial delivery start-stop valve of claim 2, wherein: the through hole is a threaded hole, and an external thread is arranged on the surface of the driving shaft (701) and is connected with the driving shaft through threads.

4. The natural gas partial delivery start-stop valve of claim 2, wherein: the guide assembly comprises a guide groove (101) arranged on the inner side wall of the valve body (10) and a guide lug (501) arranged on the valve plug (50).

5. The natural gas partial delivery start-stop valve of claim 4, wherein: the guide groove (101) is C-shaped, and the guide lug (501) is arranged in the guide groove (101) in a matching mode.

6. The natural gas partial delivery start-stop valve of claim 1, wherein: the driving assembly comprises a driving wheel (702), the driving wheel (702) is fixed at the end of the driving shaft (701), and the driving wheel (702) can be rotated to drive the driving shaft (701) to rotate so as to push the valve plug (50) to move.