CN211449785U

CN211449785U - Gas one-way pressure reducing valve and pressure valve combined valve

Info

Publication number: CN211449785U
Application number: CN202020016554.1U
Authority: CN
Inventors: 石英山
Original assignee: Harbin Haoke Science And Technology Co ltd
Current assignee: Harbin Haoke Science And Technology Co ltd
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2020-09-08
Anticipated expiration: 2030-01-06

Abstract

The utility model provides a gas one-way relief pressure valve and combined valve of suppressing, low pressure valve shaft 16 penetrate low pressure valve rod 18, and the sealed pad 17 dress of low pressure one-way is on low pressure valve rod 18, and low pressure valve shaft 16 is fixed on one-way relief pressure valve body 10 lower terminal surface with two pieces of hexagon socket head cap screws 5. The utility model adopts the integrated form of the diaphragm type pressure reducing valve and the pressurizing valve, and the output pressure of the pressure reducing valve is always kept constant through the diaphragm type structures in the high-pressure air chamber and the low-pressure air chamber in the repeated uninterrupted adjusting process, thereby playing the roles of pressure reduction and pressure stabilization; the pressurizing valve cuts off the gas delivery of the pressure reducing valve, the gas opening is connected, the inflator is used for pressurizing to detect the tightness of a gas pipeline, the whole structure meets the requirements of sensitive reaction, simple structure, strong valve body tightness and easy replacement and maintenance, the gas accidents such as gas leakage, explosion and the like caused by overpressure of the pipeline, poor tightness and the like when a gas facility or equipment is used are effectively avoided, and the safety in the process of adopting is improved.

Description

Gas one-way pressure reducing valve and pressure valve combined valve

The technical field is as follows:

the utility model relates to a gas one-way relief pressure valve and combined valve structure of suppressing.

Background art:

the traditional pressure reducing valve mostly adopts a piston type valve and a diaphragm type valve, the piston type valve is complex in process and high in cost in the manufacturing process, the reaction sensitivity can be influenced by external factors under certain conditions, the diaphragm type valve is short in diaphragm spring stroke, high in reaction sensitivity and simple in process, but most diaphragm type valves adopt rubber diaphragms, can only work under the normal temperature state and are limited by using conditions. Through the gas of step-down and steady voltage, directly supply with and use facility or equipment, the gas pipeline between here, gas consumer all can take place because of the sealed not tight of linking department, the ageing leakage that arouses, traditional prevention mode is equipped with gas alarm device mostly, occupation space, need the power, service environment is also restricted simultaneously, when gas pipeline inserts gas consumer or equipment, can't confirm the pipeline leakproofness in advance, potential safety hazard has also been increased, be unfavorable for maintenance and change. Based on the reasons, the gas delivery pressure can be controlled to keep a stable state from the perspective of the safety requirement of gas, the diaphragm is made of copper or stainless steel, and the gas one-way pressure reducing valve and pressure valve combined valve for detecting the pipeline tightness is integrated, so that gas leakage caused by pressure change can be prevented, the gas one-way pressure reducing valve and pressure valve combined valve body which is high in reaction sensitivity, simple in manufacturing process, safe, reliable, long in service life and easy to detect and maintain is met, and the problems can be effectively solved.

The invention content is as follows:

the utility model aims at providing a gas one way relief pressure valve and combined valve of suppress valve can satisfy technical requirement such as manufacturing process is simple, reaction sensitivity is high, safe and reliable, long service life, easily detection and maintenance at the adoption in-process. The technical scheme of the utility model is that: the utility model provides a gas one way relief pressure valve and combined valve of suppress, characterized by: a low-pressure valve rod shaft (16) penetrates into a low-pressure valve rod (18), a low-pressure one-way sealing gasket (17) is arranged on the low-pressure valve rod (18), the low-pressure valve rod shaft (16) is fixed on the lower end face of the one-way pressure reducing valve body (10) through two hexagon socket head cap screws (5), a low-pressure diaphragm set (11) is fixed on the lower end face of the one-way pressure reducing valve body (10), one end of the low-pressure valve rod (18) is sleeved on a tensioning ring below the low-pressure diaphragm set (11), a low-pressure end cover (15) is fixed on the lower end face of the one-way pressure reducing valve body (10), a hexagon socket head cap end fastening screw (14) and a low-pressure end cover (15) are assembled in a threaded mode, the one-way pressure regulating cover (13) is sleeved on the hexagon socket head cap end fastening screw (14), a low-pressure spring (12) is clamped between the low-pressure diaphragm set (11) and; a high-pressure valve rod shaft (6) penetrates into a high-pressure valve rod (4), a high-pressure one-way sealing gasket (7) is arranged on the high-pressure valve rod (4), the high-pressure valve rod shaft (6) is fixed on the upper end face of the one-way pressure reducing valve body (10) by two hexagon socket head cap screws (5), a high-pressure diaphragm group (3) is fixed on the upper end face of the one-way pressure reducing valve body (10), one end of the high-pressure valve rod (4) is sleeved on a tensioning ring above the high-pressure diaphragm group (3), a high-pressure end cover (1) is fixed on the upper end face of the one-way pressure reducing valve body (10), a high-pressure spring (2) is clamped between the high-pressure diaphragm group (3) and the high-pressure end cover (1), and a; the pressurizing valve body (20) is fixed at the air outlet end of the single-way depressurizing valve body (10), the filter screen (8) and the steel wire check ring (9) are installed at the air inlet end of the single-way depressurizing valve body (10), the filter screen (8) is clamped between the single-way depressurizing valve body (10) and the steel wire check ring (9), the pressurizing valve joint (21) is in threaded assembly with the pressurizing valve body (20), the first O-shaped rubber sealing ring (22) is sleeved on the pressurizing valve joint (21), the pressurizing valve hemispheroid (23) is clamped between the two ball seats (24), the pressurizing valve hemispheroid (23) and the ball seats (24) are installed between the pressurizing valve joint (21) and the pressurizing valve body (20), the pressurizing valve rotary rod (26) is installed at the bottom of the pressurizing valve body (20), the two second O-shaped rubber sealing rings (25) are both sleeved on the pressurizing valve rotary rod (26), and the pressurizing port (30) is installed at the upper side of the pressurizing valve body (20), the third O-shaped rubber sealing ring (29) is sleeved on the pressurizing opening (30), the steel ball (28) is clamped between the spring (27) and the pressurizing opening (30), and the spring (27) and the steel ball (28) are clamped between the pressurizing valve body (20) and the pressurizing opening (30).

The utility model discloses a theory of operation:

the utility model discloses during operation, in gas got into one way decompression valve body (10) from gas one way relief pressure valve and the combined valve air inlet of suppressing valve, gas promoted high pressure one way sealed pad (7), high pressure one way sealed pad (7) drove high pressure valve rod (4) and rotated around high pressure valve rod axle (6), gas got into the high-pressure air chamber that high pressure diaphragm group (3) and one way decompression valve body (10) enclose from the air inlet that high pressure one way sealed pad (7) sealed, under the drive of high pressure valve rod (4) and the promotion of high pressure spring (2), high pressure diaphragm group (3) followed high pressure valve rod (4) and stretched; gas gets into low pressure gas chamber through the delivery port on the one way decompression valve body (10) among the high pressure gas chamber, gas promotes the sealed pad (17) of low pressure one way, the sealed pad (17) of low pressure one way drives low pressure valve rod (18) and rotates around low pressure valve rod axle (16), gas gets into the low pressure gas chamber that low pressure diaphragm group (11) and one way decompression valve body (10) enclose from the sealed air inlet of low pressure one way sealed pad (17) during, under the drive of low pressure valve rod (18) and the promotion of low pressure spring (12), low pressure diaphragm group (11) are followed low pressure valve rod (18) and are stretched. In the whole process, the gas pressure is changed through the telescopic change of the high-pressure diaphragm group (3) and the low-pressure diaphragm group (11), so that the gas pressure output from the pressure reducing valve is reduced and stably conveyed out, and the functions of pressure reduction and pressure stabilization are realized; the pressurizing valve rotary rod (26) controls the ball seat (24) to rotate, the pressurizing valve rotary rod (26) drives the ball seat (24) to rotate to cut off a gas pipeline, meanwhile, the pressurizing valve body (20) and the pressurizing port (30) are connected, an inflator drives air into the gas using pipeline and equipment through the pressurizing port (30), the pressurizing valve body (20) drives air into the gas using pipeline, a certain time is kept after certain pressure is reached, the gas pipeline airtightness is detected, after an external air pump is cut off after detection is finished, the spring (27) pushes the steel ball (28) to reset to seal the pressurizing port (30), and the pressurizing valve rotary rod (26) is rotated to control the ball seat (24) to rotate to cut off the pressurizing port (30) and connect the gas pipeline.

The technical effects of the utility model:

the utility model discloses the product adopts diaphragm formula structure, satisfies that whole manufacturing process is simple, reaction sensitivity is high, safe and reliable, long service life, easily detect and technical requirement such as maintenance, and is not high to installation space and environmental requirement, and the commonality is strong. In the use, can reduce gas delivery pressure and reach the setting value, guarantee gas output pressure's stability, integrated suppress the valve and can play safe auxiliary action when gas facility or equipment use, effectively ensure the leakproofness of gas pipeline.

Compare with other one-way relief pressure valves, the utility model discloses a structure has adopted diaphragm formula structure while integration to suppress the valve, high-pressure chamber above and low-pressure chamber in the below are single-way pressure reduction valve body clamp wherein, the end cover, diaphragm group and single-way pressure reduction valve body adopt the riveting form to be fixed, fixed intensity has both been guaranteed, the holistic gas leakproofness of relief pressure valve has been guaranteed again, the gas flows to low-pressure chamber from high-pressure chamber, diaphragm formula structural sensitivity is high, make overall structure internal combustion gas pressure can make the adjustment along with the change of the gas pressure of inlet end entering, reduce gas pressure and stabilize output under diaphragm group's effect, effectual assurance gas stable output, ensure because of accidents such as the gas pipeline leakage that gas pressure too big arouses. The integrated inflating valve at relief pressure valve gas outlet end can effectively cut off the gas outflow of relief pressure valve gas outlet, opens simultaneously and suppresses the mouth, facilitates the use inflater and detects the leakproofness after the gas piping installation, changes in the maintenance and changes the operation, is that the gas use is safe and reliable more.

Description of the drawings:

FIG. 1 is a front view of a combined gas one-way pressure reducing valve and pressure valve

FIG. 2 is a schematic view of a gas one-way pressure reducing valve and pressure valve combined valve structure installation component

FIG. 3 is a sectional view of the combined valve of a gas one-way pressure reducing valve and a pressure valve

FIG. 4 is a side sectional view of a gas single-way pressure reducing valve

FIG. 5 is a side sectional view of a press valve combination valve

The specific implementation mode is as follows:

as shown in fig. 1 and 2, the combined valve of the gas single-way pressure reducing valve and the pressurizing valve comprises a high-pressure end cover 1, a high-pressure spring 2, a high-pressure diaphragm group 3, a high-pressure valve rod 4, an inner hexagonal cylindrical head screw 5, a high-pressure valve rod shaft 6, a high-pressure single-way sealing gasket 7, a filter screen 8, a steel wire retaining ring 9, a single-way pressure reducing valve body 10, a low-pressure diaphragm group 11, a low-pressure spring 12, a single-way pressure regulating cover 13, an inner hexagonal cylindrical end fastening screw 14, a low-pressure end cover 15, a low-pressure valve rod shaft 16, a low-pressure single-way sealing gasket 17, a low-pressure valve rod 18, a ventilation waterproof cap 19, a pressurizing valve body 20, a pressurizing valve joint 21, a first O-shaped rubber sealing ring 22, a pressurizing valve body 23, a ball seat 24, a second O-shaped rubber sealing ring 25, a pressurizing valve rotary rod 26, a spring 27.

As shown in figure 3, a combined valve of a gas single-way pressure reducing valve and a pressurizing valve is characterized in that a low-pressure valve rod shaft 16 penetrates through a low-pressure valve rod 18, a low-pressure single-way sealing gasket 17 is installed on the low-pressure valve rod 18, the low-pressure valve rod shaft 16 is fixed on the lower end face of a single-way pressure reducing valve body 10 through two hexagon socket head cap screws 5, as shown in figure 4, a low-pressure diaphragm set 11 is fixed on the lower end face of the single-way pressure reducing valve body 10, one end of the low-pressure valve rod 18 is sleeved on a tensioning ring below the low-pressure diaphragm set 11, a low-pressure end cover 15 is fixed on the lower end face of the single-way pressure reducing valve body 10, a hexagon socket head cap end fastening screw 14 is in threaded assembly with a low-pressure end cover 15, a single-way pressure regulating cover 13 is.

As shown in fig. 4, the waterproof vent cap 19 is mounted on the low-pressure end cover 15; a high-pressure valve rod shaft 6 penetrates into a high-pressure valve rod 4, a high-pressure single-way sealing gasket 7 is arranged on the high-pressure valve rod 4, the high-pressure valve rod shaft 6 is fixed on the upper end face of a single-way pressure reducing valve body 10 by adopting two hexagon socket head cap screws 5, a high-pressure diaphragm group 3 is fixed on the upper end face of the single-way pressure reducing valve body 10, one end of the high-pressure valve rod 4 is sleeved on a tension ring above the high-pressure diaphragm group 3, a high-pressure end cover 1 is fixed on the upper end face of the single-way pressure reducing valve body 10, a high-pressure spring 2 is clamped between the high-pressure diaphragm; the pressing valve body 20 is fixed at the air outlet end of the one-way pressure reducing valve body 10, the filter screen 8 and the steel wire retainer ring 9 are installed at the air inlet end of the one-way pressure reducing valve body 10, and the filter screen 8 is clamped between the one-way pressure reducing valve body 10 and the steel wire retainer ring 9.

As shown in fig. 5, the pressing valve joint 21 and the pressing valve body 20 are assembled in a threaded manner, the first O-shaped rubber sealing ring 22 is sleeved on the pressing valve joint 21, the pressing valve hemisphere 23 is clamped between the two ball seats 24, the pressing valve hemisphere 23 and the ball seats 24 are installed between the pressing valve joint 21 and the pressing valve body 20, the pressing valve rotating rod 26 is installed at the bottom of the pressing valve body 20, the two second O-shaped rubber sealing rings 25 are all sleeved on the pressing valve rotating rod 26, the pressing opening 30 is installed at the front part of the upper side of the pressing valve body 20, the third O-shaped rubber sealing ring 29 is sleeved on the pressing opening 30, the steel ball 28 is clamped between the spring 27 and the pressing opening 30, and the spring 27 and the steel ball 28 are clamped between the pressing valve body 20 and the pressing opening 30.

The utility model discloses the product mainly is applied to on the gas pipeline, uses facility or equipment to provide stable gas for the gas and carries, plays step-down and steady voltage effect, possesses gas pipeline leakproofness simultaneously and detects the function, can block the gas through the suppressing valve and carry, suppresses through the inflater and detects gas pipeline leakproofness, and the gas pipeline that easily detects and maintains the change, guarantees safe and reliable in the gas use.

The pressure that the relief pressure valve made the relief pressure valve through diaphragm group continuous adjustment process that relapses is invariable always, guarantee outlet pressure stable, thereby until step-down and steady voltage effect, the pressure valve can cut off relief pressure valve gas outlet, open simultaneously and suppress the mouth, suppress through the inflater and detect gas pipeline seal, the gas one way relief pressure valve that possesses functions between them and the modular valve of pressure valve, do not need power consumption or any external power, realize automatically regulated, automatic work, long-term reliable, easy maintenance, simple installation simultaneously, high durability and convenient use, the small and exquisite occupation space that does not of structure. In the use, possess the valve of relief pressure valve and the function of suppressing valve simultaneously, can improve the security, the reliability of gas use, the convenience of maintenance greatly, be equivalent to two inspection valves, one is inspected before using, and one is controlled in the process, and the effectual accident rate of avoiding and reducing ensures gas safety in utilization, has very competitive power in the market, has wide market prospect.

Claims

1. The utility model provides a gas one way relief pressure valve and combined valve of suppress, characterized by: a low-pressure valve rod shaft (16) penetrates into a low-pressure valve rod (18), a low-pressure one-way sealing gasket (17) is arranged on the low-pressure valve rod (18), the low-pressure valve rod shaft (16) is fixed on the lower end face of the one-way pressure reducing valve body (10) through two hexagon socket head cap screws (5), a low-pressure diaphragm set (11) is fixed on the lower end face of the one-way pressure reducing valve body (10), one end of the low-pressure valve rod (18) is sleeved on a tensioning ring below the low-pressure diaphragm set (11), a low-pressure end cover (15) is fixed on the lower end face of the one-way pressure reducing valve body (10), a hexagon socket head cap end fastening screw (14) and a low-pressure end cover (15) are assembled in a threaded mode, the one-way pressure regulating cover (13) is sleeved on the hexagon socket head cap end fastening screw (14), a low-pressure spring (12) is clamped between the low-pressure diaphragm set (11) and; a high-pressure valve rod shaft (6) penetrates into a high-pressure valve rod (4), a high-pressure one-way sealing gasket (7) is arranged on the high-pressure valve rod (4), the high-pressure valve rod shaft (6) is fixed on the upper end face of the one-way pressure reducing valve body (10) by two hexagon socket head cap screws (5), a high-pressure diaphragm group (3) is fixed on the upper end face of the one-way pressure reducing valve body (10), one end of the high-pressure valve rod (4) is sleeved on a tensioning ring above the high-pressure diaphragm group (3), a high-pressure end cover (1) is fixed on the upper end face of the one-way pressure reducing valve body (10), a high-pressure spring (2) is clamped between the high-pressure diaphragm group (3) and the high-pressure end cover (1), and a; the pressurizing valve body (20) is fixed at the air outlet end of the single-way depressurizing valve body (10), the filter screen (8) and the steel wire check ring (9) are installed at the air inlet end of the single-way depressurizing valve body (10), the filter screen (8) is clamped between the single-way depressurizing valve body (10) and the steel wire check ring (9), the pressurizing valve joint (21) is in threaded assembly with the pressurizing valve body (20), the first O-shaped rubber sealing ring (22) is sleeved on the pressurizing valve joint (21), the pressurizing valve hemispheroid (23) is clamped between the two ball seats (24), the pressurizing valve hemispheroid (23) and the ball seats (24) are installed between the pressurizing valve joint (21) and the pressurizing valve body (20), the pressurizing valve rotary rod (26) is installed at the bottom of the pressurizing valve body (20), the two second O-shaped rubber sealing rings (25) are both sleeved on the pressurizing valve rotary rod (26), and the pressurizing port (30) is installed at the upper side of the pressurizing valve body (20), the third O-shaped rubber sealing ring (29) is sleeved on the pressurizing opening (30), the steel ball (28) is clamped between the spring (27) and the pressurizing opening (30), and the spring (27) and the steel ball (28) are clamped between the pressurizing valve body (20) and the pressurizing opening (30).