CN119664984A - A pilot for a gas pressure regulator - Google Patents
A pilot for a gas pressure regulator Download PDFInfo
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- CN119664984A CN119664984A CN202411761076.6A CN202411761076A CN119664984A CN 119664984 A CN119664984 A CN 119664984A CN 202411761076 A CN202411761076 A CN 202411761076A CN 119664984 A CN119664984 A CN 119664984A
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Abstract
本发明提出了一种用于燃气调压器的指挥器，涉及燃气调压器技术领域。包括执行机构、阀体以及低压执行机构；阀体的其中一端开设有阀体上腔，阀体的另一端开设有阀体下腔；阀体上腔和阀体下腔内均设有与其适配的膜片，阀体内安装有执行器，执行器用于迫使两个膜片分别与其对应的执行机构的执行端以及低压执行机构的执行端进行联动；阀体内设有用于调节阀体上腔与阀体下腔压力信号的调节机构；能防止压力信号迅速变化使调压系统发生喘动，阻尼数值可根据阻尼器在阀体中的位置调节。限流器可调节泄压的速度，用以调节调压系统的响应时间；在阀体内设置执行器使得阀体具有快放功能，能在出现复杂工况时，能快速泄压，保证响应时间和精度。
The present invention proposes a controller for a gas pressure regulator, which relates to the technical field of gas pressure regulators. It includes an actuator, a valve body and a low-pressure actuator; an upper valve cavity is provided at one end of the valve body, and a lower valve cavity is provided at the other end of the valve body; diaphragms adapted to the upper and lower valve cavities are provided in the upper and lower valve cavities of the valve body, and an actuator is installed in the valve body, the actuator is used to force the two diaphragms to be linked with the actuator ends of the corresponding actuators and the actuator ends of the low-pressure actuators respectively; an adjusting mechanism for adjusting the pressure signals of the upper and lower valve cavities of the valve body is provided in the valve body; it can prevent the pressure signal from changing rapidly and causing the pressure regulating system to surge, and the damping value can be adjusted according to the position of the damper in the valve body. The flow limiter can adjust the speed of pressure relief to adjust the response time of the pressure regulating system; the actuator is arranged in the valve body so that the valve body has a quick release function, which can quickly release pressure when complex working conditions occur, ensuring the response time and accuracy.
Description
Technical Field
The invention relates to the technical field of gas pressure regulators, in particular to a director for a gas pressure regulator.
Background
The gas pressure regulator is a device for automatically regulating the pressure of a gas outlet so as to ensure that the gas outlet is stable within a certain pressure range. The gas pressure regulator consists of director and main valve, the inlet pressure of the pressure regulator is P1, the pressure is higher, the outlet pressure is P2, the pressure is lower than the inlet pressure and is required to be stable, and the gas conveyed by the gas pipeline is regulated from P1 to P2 by the main valve of the pressure regulator and is supplied to the downstream pipeline or the gas appliance. The driving pressure, generally referred to as P3, whose pressure is intermediate between the inlet pressure and the outlet pressure, is a variable for adjusting the opening size of the main valve, provided by the commander. The director is also called a pilot valve, and is a preamplifier of an indirect acting pressure regulator, and the director has the function of controlling the opening degree of a main valve cylinder and a valve pad to keep the stability of the outlet pressure P2 of the main valve of the pressure regulator by utilizing the change of the outlet pressure P2 and obtaining the driving pressure P3 after amplification.
The working principle of the pressure regulator is that the inlet gas pressure P1 is conducted to the driving pressure P3 of the elastic rubber as a control component through the pressure stabilizer and the director, and the director controls the pressure of the P3. When the director is closed, P3 is equal to P2, so that the pressures at two sides of the elastic rubber of the main valve are balanced, and the closing is realized by means of self elasticity or closing spring force. When the air is used, the diaphragm lower cavity P2 of the director is lowered, the valve port of the director is driven to be opened, P3 is increased, the main valve P2 of the pressure regulator is smaller than P3, and the pressure regulator is gradually opened. The dynamic balance realizes the pressure regulating function, the work of the existing pressure regulator director is greatly influenced by the gas pressure P1 before pressure regulation, when the fluctuation of P1 is relatively large, the fluctuation of P3 is also relatively large, the accuracy and stability of the gas pressure P2 after pressure regulation are influenced, the pressure regulating system is disturbed, the operation of the director is not facilitated, and the existing director is difficult to detach and has the problem of inconvenient maintenance.
Disclosure of Invention
The invention aims to provide a director for a gas pressure regulator, which can solve the problems of the background technology.
The technical scheme of the invention is realized as follows:
The invention provides a director for a gas pressure regulator, which comprises an executing mechanism, a valve body and a low-pressure executing mechanism, wherein the executing mechanism is arranged on the valve body;
The valve comprises a valve body, an actuating mechanism, a valve body upper cavity, a valve body lower cavity, a diaphragm piece, an actuating mechanism, a diaphragm piece and a valve body, wherein one end of the valve body is provided with the valve body upper cavity, and the other end of the valve body is provided with the valve body lower cavity;
the low-pressure actuating mechanism is arranged at the other end of the valve body, the actuating end of the low-pressure actuating mechanism is in butt joint with a diaphragm piece arranged in the lower cavity of the valve body, and an actuator is arranged in the valve body and used for forcing the two diaphragm pieces to be respectively linked with the actuating end of the corresponding actuating mechanism and the actuating end of the low-pressure actuating mechanism;
The valve body is internally provided with an adjusting mechanism for adjusting pressure signals of the upper cavity and the lower cavity of the valve body.
In some technical schemes of the invention, the actuator comprises two mounting holes which are arranged in the valve body and used for communicating an upper cavity of the valve body with a lower cavity of the valve body, valve rods are respectively arranged in the mounting holes in a penetrating manner, lower trays which are connected with the two valve rods are respectively arranged in the upper cavity of the valve body and the lower cavity of the valve body, the diaphragm piece is sleeved on the lower trays, the lower trays are provided with upper trays which are in butt joint with the diaphragm piece, the middle parts of the valve rods are respectively provided with a sealing piece, and the lower trays are provided with compression nuts which are in butt joint with the upper trays.
In some technical schemes of the invention, the regulating mechanism comprises a pipeline container connector arranged on the outer side wall of the valve body, a first mounting port communicated with the pipeline container connector is arranged on the side wall of the valve body, a restrictor is arranged in the first mounting port, a blocking piece abutted against the restrictor is arranged in the first mounting port, a first channel communicated with the first mounting port and the lower cavity of the valve body respectively is arranged in the valve body, a second mounting port communicated with the upper cavity of the valve body is arranged on the side wall of the valve body, a damping bolt is arranged in the second mounting port, a second channel communicated with the second mounting port and the lower cavity of the valve body respectively is arranged in the valve body, an input port communicated with the lower cavity of the valve body is arranged on the valve body, and a control component for controlling the lower cavity of the valve body to be communicated with the input port is arranged in the valve body.
In some technical schemes of the invention, the control assembly comprises a valve port and a valve core, wherein the valve port and the valve core are arranged in the valve body, an inlet communicated with the inlet is formed in the outer side wall of the valve port, the valve port is communicated with a lower cavity of the valve body, an assembly port matched with the valve core is formed in a lower tray arranged in the lower cavity of the valve body, and a quick release spring connected with the inner wall of the assembly port is sleeved on the valve core;
one end of the valve core, which is away from the valve port, is sleeved with a closing nut, and the closing nut is abutted with the inner side wall of the assembly port.
In some technical schemes of the invention, the actuating mechanism comprises a pressure regulating film cover detachably arranged on the valve body, wherein an upper screw cap is arranged at one end of the pressure regulating film cover, which is far away from the valve body, a pressure regulating rod is arranged on the upper screw cap in a penetrating manner, an upper spring seat and a lower spring seat are arranged in a sliding manner in the pressure regulating film cover, a pressure regulating spring is arranged between the upper spring seat and the lower spring seat, a locking nut for locking the pressure regulating rod is arranged on the upper screw cap, and a groove matched with the pressing nut is formed in the side wall, opposite to the valve body, of the lower spring seat.
In some technical schemes of the invention, the low-pressure actuating mechanism comprises a low-pressure lower film cover and a low-pressure upper film cover, the low-pressure lower film cover is detachably connected with the low-pressure upper film cover, a communication port is formed in the side wall, deviating from the low-pressure lower film cover, of the low-pressure upper film cover, and a low-pressure tray assembly is arranged between the low-pressure lower film cover and the low-pressure upper film cover.
In some technical schemes of the invention, the low-pressure tray component comprises a compression ring, a compression ring nut, a low-pressure membrane, a low-pressure upper tray and a low-pressure lower tray, wherein the low-pressure membrane, the low-pressure upper tray and the low-pressure lower tray are all sleeved on the compression ring, the low-pressure upper tray and the low-pressure lower tray are arranged on two sides of the low-pressure membrane, the compression nut in the lower cavity of the valve body is arranged in the compression ring and is in threaded connection with the compression ring, a through hole communicated with the assembly opening is formed in the compression nut, and the through hole is communicated with the inner cavity of the compression ring.
Compared with the prior art, the invention has at least the following advantages or beneficial effects:
The damper is added to prevent the rapid change of the pressure signal from causing the surge of the pressure regulating system, and the damping value can be regulated according to the position of the damper in the valve body. The flow restrictor can adjust the speed of pressure relief through the form of pressure relief hole and pressure relief groove to adjust the response time of pressure regulating system. Through setting up flow limiter and damper and executor in the valve body, the space utilization rate of the valve body has been improved, has realized the multi-functional combination, can match more application scenes, with the assembly of gas director, improve the adaptive capacity of this equipment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of a combination structure of a valve body and a membrane cover under low pressure in the invention;
FIG. 3 is a schematic view of the internal structure of the valve body according to the present invention;
FIG. 4 is a schematic view of the mounting structure of the valve port of the present invention;
FIG. 5 is a schematic cross-sectional view of the overall structure of the present invention;
FIG. 6 is a schematic cross-sectional view of a valve body and a low pressure actuator according to the present invention;
FIG. 7 is a schematic illustration of the outlet/inlet of the valve body of the present invention;
FIG. 8 is a schematic cross-sectional view of the structure of FIG. 7 taken in the direction A-A;
FIG. 9 is a schematic cross-sectional view of the structure in the direction B-B in FIG. 7;
FIG. 10 is a schematic cross-sectional view of the structure of FIG. 7 taken in the direction C-C;
fig. 11 is a schematic sectional view of the structure of fig. 7 in the direction D-D.
The icons are 1, a pressure regulating membrane cover, 2, a pressure regulating spring, 3, a pressure regulating rod, 4, an upper nut, 5, a locking nut, 6, an upper spring seat, 7, a lower spring seat, 8, a compression nut, 9, an output port, 10, a valve body, 11, a low pressure lower membrane cover, 12, an upper tray, 13, a lower tray, 14, a low pressure lower membrane cover area, 15, a valve rod, 16, a valve core, 17, a valve port, 18, a quick release spring, 19, a gasket, 20, a membrane piece, 21, a low pressure upper tray, 22, a second air outlet, 23, a low pressure lower tray, 24, a compression ring nut, 25, a closing nut, 26, a compression ring, 27, a pipeline container interface, 28, a low pressure upper membrane cover, 29, a damping bolt, 30, a valve body upper cavity, 31, a valve body lower cavity, 32, a restrictor, a low pressure membrane, 35, an input port, 36 and a first air outlet.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
Please refer to fig. 1-11.
The invention provides a director for a gas pressure regulator, which is shown in fig. 1 and 2, and comprises an actuating mechanism, a valve body 10, a low-pressure actuating mechanism, an actuator arranged in the valve body 10, two diaphragm pieces 20, a restrictor 32 and a damping bolt 29, wherein the two diaphragm pieces 20, the restrictor 32 and the damping bolt 29 are arranged in the valve body 10;
The specific mounting structure of the valve body 10 and the actuator, the two diaphragm pieces 20, the restrictor 32 and the damper plug 29 is as follows:
The valve body 10 is in a hexagonal prism shape, one end of the valve body 10 is provided with a valve body upper cavity 30, and the other end of the valve body 10 is provided with a valve body lower cavity 31, two diaphragm pieces 20 are respectively arranged in the valve body upper cavity 30 and the valve body lower cavity 31, and the valve body upper cavity 30 and the valve body lower cavity 31 are blocked;
The actuator comprises two mounting holes which are formed in a valve body 10 and are used for communicating an upper valve body cavity 30 and a lower valve body cavity 31, valve rods 15 which are matched with the valve rods are arranged in the mounting holes in a penetrating mode, lower trays 13 which are connected with the two valve rods 15 are arranged in the upper valve body cavity 30 and the lower valve body cavity 31, the valve rods 15 are connected with the lower trays 13 through screws, a diaphragm piece 20 is sleeved on the lower trays 13, gaskets 19 are arranged between the diaphragm piece 20 and the lower trays 13, an upper tray 12 which is in butt joint with the diaphragm piece 20 is arranged on the lower trays 13, annular countersinks are formed in the middle of the valve rods 15, sealing pieces are arranged in the annular countersinks, the sealing pieces are sealing rings, gas is prevented from entering the lower valve body cavity 31 from the upper valve body cavity 30 through gaps between the valve rods 15 and the mounting holes, compression nuts 8 which are in butt joint with the upper trays 12 are arranged on the lower trays 13, the compression nuts 8 are in threaded connection with the lower trays 13, and sealing rings are arranged between the compression nuts 8 and the lower trays 13, so that the sealing effect between the upper tray and the lower tray is improved.
The regulating mechanism comprises a pipeline container interface 27 arranged on the outer side wall of the valve body 10, a pipeline is communicated with the main valve, a first mounting port communicated with the pipeline container interface 27 is arranged in the middle of the valve body 10, and a restrictor 32 is arranged in the first mounting port;
The side wall of the valve body 10 is provided with a second mounting port communicated with the valve body upper cavity 30, a damping bolt 29 is arranged in the second mounting port, and the valve body 10 is internally provided with a second channel respectively communicated with the second mounting port and the valve body lower cavity 31;
The valve body 10 is provided with an input port 35 communicated with the lower cavity 31 of the valve body, wherein the input port 35 is arranged along the radial direction of the valve body 10;
The valve body 10 is provided with an output port 9 communicated with a lower cavity 31 of the valve body, and the output port 9 is arranged along the radial direction of the valve body 10;
A control assembly is provided in the valve body 10 to control communication between the valve body lower chamber 31 and the input port 35.
Preferably, the flow restrictor 32 is divided into a plurality of sections, the middle part of the flow restrictor is a cylinder in a shape of a circumferential cylinder, the front end of the flow restrictor is provided with two frustum sections in sequence, the two frustum sections are respectively a first frustum and a second frustum, the first frustum, the second frustum and the cylinder are sequentially connected, the large diameter end of the first frustum is connected with the small diameter end of the second frustum, the large diameter end of the second frustum is connected with the cylinder, the outer diameter of the large diameter end of the second frustum is smaller than the outer diameter of the cylinder, the outer side wall of the first frustum is provided with a pressure relief groove, the joint of the first frustum and the second frustum is provided with a pressure relief hole, the pressure relief hole is communicated with the pressure relief groove, the other side of the cylinder is provided with a sealing section, the outer side wall of the sealing section is provided with a sealing ring, and a blocking piece in the first mounting port is in butt joint with the flow restrictor 32 and is in threaded connection with the inner wall of the first mounting port.
Preferably, the damping bolt is divided into a plurality of sections, the middle part of the damping bolt is a cylinder in the shape of a circumferential cylinder, the front end of the damping bolt is provided with two frustum sections in sequence, the two frustum sections are respectively a first frustum and a second frustum, the first frustum, the second frustum and the cylinder are sequentially connected, the large diameter end of the first frustum is connected with the small diameter end of the second frustum, the large diameter end of the second frustum is connected with the cylinder, the outer diameter of the large diameter end of the second frustum is smaller than the outer diameter of the cylinder, the other side of the cylinder is provided with a sealing section, and the outer side wall of the sealing section is provided with a sealing ring.
In some technical schemes of the invention, the control assembly comprises a valve port 17 and a valve core 16 which are arranged in the valve body 10, an inlet communicated with an input port 35 is formed in the outer side wall of the valve port 17, the valve port 17 is communicated with a lower valve body cavity 31, an assembly port matched with the valve core 16 is formed in a lower tray 13 arranged in the lower valve body cavity 31, and a quick release spring 18 connected with the inner wall of the assembly port is sleeved on the valve core 16;
One end of the valve core 16, which is away from the valve port 17, is sleeved with a closing nut 25, and the closing nut 25 is abutted with the inner side wall of the assembly port.
In some embodiments of the invention, the side wall of the closure nut 25 is provided with an annular bevel.
Preferably, the assembly port is formed on the lower tray 13 in the lower cavity 31 of the valve body through machining means, the assembly port is divided into a plurality of sections, the first chamber, the second chamber and the third chamber are communicated with each other in sequence, the inner diameter of the first chamber is larger than that of the second chamber, the second chamber is identical to that of the third chamber, a spacing ring is arranged between the second chamber and the third chamber and used for limiting the movement of the quick release spring 18, one side of the spacing ring, which is away from the second chamber, is provided with an inner conical surface and is matched with an outer conical surface formed on the closing nut 25, the air tightness of the closing nut 25 when the closing nut contacts with the spacing ring is improved, and the sealing performance of the structure is improved.
In some technical schemes of the invention, the actuating mechanism comprises a pressure regulating film cover 1 which is detachably arranged on a valve body 10, wherein the pressure regulating film cover 1 is connected with the upper end of the valve body 10 through a bolt, one end of the pressure regulating film cover 1, which is far away from the valve body 10, is provided with an upper screw cap 4 in threaded connection with the pressure regulating film cover, the upper screw cap 4 is penetrated with a pressure regulating rod 3, an upper spring seat 6 and a lower spring seat 7 are slidably arranged in the pressure regulating film cover 1, a pressure regulating spring 2 is arranged between the upper spring seat 6 and the lower spring seat 7, a locking nut 5 for locking the pressure regulating rod 3 is arranged on the upper screw cap 4, and a groove matched with the pressing nut 8 is formed in the side wall, opposite to the valve body 10, of the lower spring seat 7. The device is used for applying pretightening force to the diaphragm piece 20 arranged in the upper cavity 30 of the valve body, and enabling the actuator arranged in the valve body 10 to ensure that the pressure value in the valve body 10 is kept in a relatively stable state by the relative positions of the diaphragm piece 20 and the actuator in the valve body 10 under the structural condition when high-pressure gas is injected into the valve body 10, and forcing the diaphragm piece 20 arranged in the upper cavity 30 of the valve body to reset.
And the diaphragm piece 20 positioned in the valve body upper cavity 30 is arranged between the pressure regulating film cover 1 and the valve body 10, and the valve body 10 and the pressure regulating film cover 1 can be separated into two independent areas through the diaphragm piece 20, so that the risk of gas leakage is avoided.
In some technical solutions of the present invention, the low pressure actuator includes a low pressure lower film cover 11 and a low pressure upper film cover 28, the low pressure lower film cover 11 and the low pressure upper film cover 28 are detachably connected by bolts, a side wall of the low pressure upper film cover 28 facing away from the low pressure lower film cover 11 is provided with a communication port, and a low pressure tray assembly is provided between the low pressure lower film cover 11 and the low pressure upper film cover 28.
And the diaphragm piece 20 positioned in the valve body lower cavity 31 is arranged between the pressure regulating film cover 1 and the valve body 10, and the valve body 10 and the low pressure lower film cover 11 can be separated into two independent areas, namely a low pressure lower film cover area 14 and a low pressure upper film cover area by the diaphragm piece 20, so that the risk of gas leakage is avoided.
In some embodiments of the present invention, the low pressure tray assembly includes a pressure ring 26, a pressure ring nut 24, a low pressure diaphragm 33, a low pressure upper tray 21 and a low pressure lower tray 23, the low pressure diaphragm 33, the low pressure upper tray 21 and the low pressure lower tray 23 are all sleeved on the pressure ring 26, the low pressure upper tray 21 and the low pressure lower tray 23 are disposed on two sides of the low pressure diaphragm 33, the pressure ring nut 24 is in threaded connection with the pressure ring 26, a compression nut 8 disposed in a lower cavity 31 of the valve body is disposed in the pressure ring 26 and in threaded connection therewith, a through hole communicating with the assembly port is formed in the compression nut 8, and the through hole is communicated with an inner cavity of the pressure ring 26. The outer edge of the low pressure diaphragm 33 is placed between the low pressure diaphragm cover 11 and the low pressure upper diaphragm cover 28.
In some embodiments of the present invention, the sidewall of the low pressure tray 23 is provided with a first air outlet 36. The first exhaust port 36 is used for avoiding the occurrence of the problem that the movement of the low pressure diaphragm 33 and the diaphragm piece 20 positioned in the valve body lower cavity 31 is blocked due to the fact that the pressure in the low pressure closed area formed by the low pressure diaphragm 33, the diaphragm piece 20 positioned in the valve body lower cavity 31, the valve body 10 and the low pressure tray 23 is larger than the external pressure, and avoiding the occurrence of the situation that the adjustment precision of the high pressure gas input into the valve body 10 is not guaranteed due to the structural adjustment.
In some embodiments of the present invention, the side wall of the pressure regulating membrane cover 1 is provided with a second air outlet 22. The second exhaust port 22 is used for avoiding the problem that the movement of the diaphragm piece 20 positioned in the valve body lower cavity 31 is blocked due to the fact that the pressure in the pressure regulating closed area formed by the diaphragm piece 20 positioned in the valve body lower cavity 31, the valve body 10 and the pressure regulating film cover 1 is larger than the external pressure, and avoiding the situation that the regulating precision of the high-pressure gas regulated and input into the valve body 10 by the structure is not guaranteed.
The working principle of the equipment is as follows:
Firstly, high-pressure gas P1 input by a pipeline is required to be connected into an input port 35, the high-pressure gas P1 enters a valve body lower cavity 31 through a valve port 17 communicated with the input port 35, then enters a first mounting port through a first channel and enters a pipeline container port 27 to be input into a main valve, and enters a second mounting port through a second channel and enters a valve body upper cavity 30 through the second mounting port, when a vulcanized valve core 16 is out of contact with the valve port 17, the high-pressure gas P1 enters a communication port through an actuator in the valve body 10, a damping plug 29 and a flow restrictor 32 and then enters the main valve through an assembly port, gas P3 positioned in the valve body 10 outputs gas from an output port 9 into low-pressure gas P2, and then enters a downstream pipeline to be supplied with gas;
When the high-pressure gas P1 is input into the valve body 10, the pressure signals in the lower valve body cavity 31 and the upper valve body cavity 30 are changed simultaneously, so that the surge of a pressure regulating system is easy to cause, when the high-pressure gas P1 is input into the valve body 10 and is damped by the damping bolt 29, the pressure signals in the lower valve body cavity 31 and the upper valve body cavity 30 are prevented from being changed simultaneously, when the pressure signal in the high-pressure gas P1 is input into the valve body 10 more quickly, the damping generated by the damping bolt 29 on the high-pressure gas P1 in the valve body 10 is more quickly, the pressure signals in the lower valve body cavity 31 and the upper valve body cavity 30 are prevented from being changed simultaneously, the change frequency of the two is prevented from being too quickly, the surge of the pressure regulating system is effectively weakened, the mounting position of the damping bolt 29 in a second mounting port is regulated to realize damping coefficients with different sizes, the pressure value of the high-pressure gas P1 entering the second mounting port can be regulated in a larger range, and the pressure regulating system can be helped to run in a stable state;
In order to solve the problems that the pressure relief opening of a common commander is fixed, the upper limit of pressure relief is fixed and cannot be adjusted in the prior art, the structure is provided with the flow restrictor 32 in the valve body 10, the flow restrictor 32 is provided with pressure relief holes and pressure relief grooves to ensure that the structure performs normal pressure relief operation, and the pressure relief speed can be controlled by adjusting the position of the flow restrictor 32 in a first mounting opening, so that the response time of a pressure regulating system is adjusted, and the accuracy of the pressure regulating system is improved. So that the fluid in the lower chamber 31 of the valve body can flow to the connection pipe container port 27 according to the result of the adjustment and then be led into the main valve;
Typically, the fluid pressure in the tubing container to which the tubing container interface 27 is connected is less than the fluid pressure in the valve body lower chamber 31. However, in special cases, when the fluid pressure in the pipe container connected to the pipe container interface 27 is greater than the fluid pressure in the lower chamber 31 of the valve body, the conventional director structure is difficult to adjust, which may cause disturbance of the pressure regulating system. In order to solve the above problems, the valve body 10 is provided with the valve port 17, the actuator and the adjusting assembly to realize quick release of fluid, thereby avoiding turbulence of the valve body 10. The pressure signal in the low pressure film cover area 14 acts on the low pressure diaphragm 33, the low pressure diaphragm 33 drives the compression ring 26 and the compression nut 8 to move close to the valve body 10, the low pressure diaphragm 33 transmits force to the lower tray 13 positioned in the valve body lower cavity 31, the lower tray 13 positioned in the valve body lower cavity 31 continuously moves downwards, the lower tray 13 positioned in the valve body lower cavity 31 and the closing nut 25 are dislocated, a channel between the two channels is opened, the pressure signal in the low pressure film cover area 14 can be quickly released into the valve body lower cavity 31 to achieve a quick release function, the pressure of the pipeline container interface 27 and the pressure film cover area is balanced, and the response efficiency and the accuracy of the pressure regulating system are ensured;
And the valve rod 15 in the actuator is connected with the diaphragm piece in the valve body upper cavity 30 and the diaphragm piece 20 at the valve body lower cavity 31 to seal the channel between the valve body upper cavity 30 and the valve body lower cavity 31, so that the risk of leakage is avoided when the pressure signal between the valve body upper cavity 30 and the valve body lower cavity 31 can be regulated by the damper, and the damping function is realized.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411761076.6A CN119664984A (en) | 2024-12-03 | 2024-12-03 | A pilot for a gas pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411761076.6A CN119664984A (en) | 2024-12-03 | 2024-12-03 | A pilot for a gas pressure regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN119664984A true CN119664984A (en) | 2025-03-21 |
Family
ID=94985256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411761076.6A Pending CN119664984A (en) | 2024-12-03 | 2024-12-03 | A pilot for a gas pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN119664984A (en) |
-
2024
- 2024-12-03 CN CN202411761076.6A patent/CN119664984A/en active Pending
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