CN201373152Y - Novel natural gas and liquefied gas dual-purpose pressure stabilizing valve - Google Patents
Novel natural gas and liquefied gas dual-purpose pressure stabilizing valve Download PDFInfo
- Publication number
- CN201373152Y CN201373152Y CN200920051377U CN200920051377U CN201373152Y CN 201373152 Y CN201373152 Y CN 201373152Y CN 200920051377 U CN200920051377 U CN 200920051377U CN 200920051377 U CN200920051377 U CN 200920051377U CN 201373152 Y CN201373152 Y CN 201373152Y
- Authority
- CN
- China
- Prior art keywords
- valve
- pressure
- dual
- natural gas
- novel natural
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a novel natural gas and liquefied gas dual-purpose pressure stabilizing valve which comprises a valve body. A valve cavity is formed in the valve body; a membrane component for dividing the valve cavity into a fluid cavity and a pressure adjusting cavity is arranged in the valve cavity; a breathing hole is formed on the pressure adjusting chamber; a fluid channel is formed in the fluid cavity; a valve rod component for controlling the flow capacity in the fluid channel is fixedly connected onto the middle part of the membrane component; and the pressure adjusting cavity is provided with a dismountable pressure adjusting component. The utility model aims to overcome the defect in the prior art and provide the novel natural gas and liquefied gas dual-purpose pressure stabilizing valve with the advantages of simple structure and normal use without replacing the entire pressure stabilizing valve only through switching a changeover switch built in the pressure stabilizing valve.
Description
Technical field
The utility model relates to the dual-purpose pressure maintaining valve of a kind of novel natural gas liquid gas.
Background technique
Be subjected to the influence of various geographic factors, some areas rock gas can not satisfy supply for a long time, use gas holder transport liquefied gases air feed at rock gas gas company in nervous period, rock gas, the needed working pressure of liquid gas proper functioning are inequality, generally speaking gas company can be one by one in the user family pressure maintaining valve that satisfies condition of transducing more, workload is quite huge, and present pressure maintaining valve generally all can not be regulated, the user can only change suitable pressure maintaining valve running in this case, increased user cost like that, and inconvenient.
The model utility content
The purpose of this utility model is in order to overcome deficiency of the prior art, to provide a kind of simple in structure, need not change whole pressure maintaining valve, only needing the built-in throw over switch of pressure maintaining valve is changed the dual-purpose pressure maintaining valve of novel natural gas liquid gas that can normally use.
In order to achieve the above object, the utility model adopts following scheme:
The dual-purpose pressure maintaining valve of novel natural gas liquid gas, comprise valve body, be provided with valve pocket in the valve body, be provided with the diaphragm unit that valve pocket is divided into fluid chamber and pressure regulating cavity in its valve pocket, described pressure regulating cavity has a spiracle, in fluid chamber, be provided with the fluid passage, in diaphragm unit central authorities, be fixedly connected with the valve rod assembly of flow size in the may command fluid passage, be provided with dismountable pressure regulation assembly at described pressure regulating cavity;
The dual-purpose pressure maintaining valve of aforesaid novel natural gas liquid gas, wherein said valve body comprises valve body upper casing and valve body lower casing;
The dual-purpose pressure maintaining valve of aforesaid novel natural gas liquid gas, wherein in described valve body upper casing, be provided with the pressure regulation assembly, described pressure regulation assembly comprises the pressure regulation sheet that is arranged in the valve body upper casing, between pressure regulation sheet and diaphragm unit, be provided with pressure adjusting spring, described pressure regulation assembly also comprises the top cover that can be fixed on the valve body upper casing, between top cover and diaphragm unit, be provided with the push rod that to turn installation, on described push rod, be provided with limited step, but when being set with on the push rod when the conversion of gas kind the auxiliary spring of roof pressure on diaphragm unit;
The dual-purpose pressure maintaining valve of aforesaid novel natural gas liquid gas, wherein said diaphragm unit comprises diaphragm and pallet, is fixedly connected with valve rod assembly in diaphragm and pallet central authorities;
The dual-purpose pressure maintaining valve of aforesaid novel natural gas liquid gas, wherein valve rod assembly comprises mandrel, and described mandrel one end is fixedly connected on the diaphragm unit, and the mandrel the other end is provided with the conical plug of flow size in the controllable flow body cavity;
The dual-purpose pressure maintaining valve of aforesaid novel natural gas liquid gas wherein is provided with sealing seat on described lower shell body, described valve rod assembly is arranged in the sealing seat.
The dual-purpose pressure maintaining valve of aforesaid novel natural gas liquid gas wherein is provided with the restraining groove that is used for fixing auxiliary spring in limited step one side.
The dual-purpose pressure maintaining valve of aforesaid novel natural gas liquid gas, wherein said push rod is a hollow tube body, is provided with can insert described hollow ram and can make push rod be fixed on core bar in the valve body upper casing in described top cover.
In sum, the utility model with respect to its beneficial effect of prior art is:
Adopt in the utility model and diaphragm unit is set in valve body the body cavity body is divided into fluid chamber and pressure regulating cavity, at the fixedly connected valve rod assembly of diaphragm unit, diaphragm unit and valve rod assembly will rise after being subjected to the pressure of gas, thereby make the close sealing seat that is arranged in the fluid chamber of conical plug in the valve rod assembly, reach the effect of adjustments of gas flow; After more ventilation is planted, can open the top cover that is arranged on the upper shell, change the position of dual-purpose push rod, use auxiliary spring further to the diaphragm unit effect, thereby realize the control valve rod assembly, the gas flow of control flows body cavity kind makes pressure maintaining valve can be adapted to two kinds of different gas kinds respectively effectively.
Description of drawings
Fig. 1 is an explosive view of the present utility model;
Fig. 2 is a generalized section of the present utility model;
Generalized section when Fig. 3 is in work for auxiliary spring in the utility model.
Embodiment
Below in conjunction with description of drawings and embodiment the utility model is further described:
The dual-purpose pressure maintaining valve of novel natural gas liquid gas as shown in Figures 1 to 3, comprise valve body 1, be provided with valve pocket 2 in the valve body 1, be provided with the diaphragm unit 3 that valve pocket 2 is divided into fluid chamber 21 and pressure regulating cavity 22 in the valve pocket 2, described pressure regulating cavity 22 has a spiracle 221, and the effect of this spiracle 221 is: when diaphragm unit 3 moved up, the pressure regulating cavity 22 of diaphragm unit 3 tops can diminish gradually, gas is compressed and can discharges from aperture, otherwise can hinder the motion of diaphragm unit 3; When diaphragm unit 3 moved down, gas sucked from aperture again.In addition, spiracle 221 can also play the effect of buffering;
In fluid chamber 21, be provided with the fluid passage, in diaphragm unit 3 central authorities, be fixedly connected with the valve rod assembly 4 of flow size in the may command fluid passage, be provided with dismountable pressure regulation assembly 5 at described pressure regulating cavity 22.
Valve body 1 described in the utility model comprises valve body upper casing 11 and valve body lower casing 12, in described valve body upper casing 11, be provided with pressure regulation assembly 5, described pressure regulation assembly 5 comprises the pressure regulation sheet 7 that is arranged in the valve body upper casing 11, between pressure regulation sheet 7 and diaphragm unit 3, be provided with pressure adjusting spring 51, described pressure regulation assembly 5 also comprises the top cover 52 that can be fixed on the valve body upper casing 11, between top cover 52 and diaphragm unit 3, be provided with the push rod 53 that to turn installation, on described push rod 53, be provided with limited step 531, be provided with the restraining groove 532 that is used for fixing auxiliary spring 54 in limited step 531 1 sides, but when being set with on the push rod 53 when the conversion of gas kind the auxiliary spring 54 of roof pressure on diaphragm unit 3.
Wherein said push rod 53 is a hollow tube body, is provided with can insert described hollow ram 53 and can make push rod 53 be fixed on core bar 522 in the valve body upper casing 11 in described top cover 52.
Reduction valve mainly is to rely on cooperating of diaphragm unit and pressure-regulating device, and the aperture of automatic regulating valve mouth changes the flow of the gas by reduction valve, and outlet pressure can be controlled at a product in the stability range.And the core parts in the pressure-regulating device are pressure adjusting springs, all are that the elastic force that changes spring is realized usually to different outlet pressures.
In gas company's conversion source of the gas, must guarantee that pressure maintaining valve can satisfy current gas kind and could use.But at user terminal, the engineering staff can not carry a large amount of testing apparatuss and remove pressure adjusting spring in the adjustment pressure-regulating device to the scene.And this novel convertible pressure governor is in pressure regulating mechanism, designed can two different fixing states of conversion mechanism.The design of these two state machines makes pressure maintaining valve can be adapted to two kinds of different gas kinds respectively.
Gas flows into from the pressure maintaining valve gas-entered passageway, flows to fluid chamber 21, and the outlet pipe from valve body flows out again.The gas flow that uses when outlet pipe is during less than the gas-entered passageway flow, the pressure of fluid chamber 21 can rise rapidly, and fluid chamber 21 is chambers of a sealing, the power that rise to produce when pressure can promote diaphragm unit 3 and move up, also move up with diaphragm unit 3 fixedly connected valve rod assemblies 4 thereupon, conical plug 42 in the valve rod assembly 4 and the gap (valve port) between the sealing seat 6 are reduced, hinder gas from import flowing to outlet; And along with the slowly use of rate of discharge, the gas of fluid chamber 21 reduces gradually, pressure reduces, the power that above diaphragm unit 3, also has pressure adjusting spring 51 to apply, diaphragm unit 3 can move down again under the effect of spring force, and valve port opening increases simultaneously, and gas replenishes to fluid chamber 21 again in a large number, the circulation that goes round and begins again like this and do not stop reaches the purpose of control gaseous flow.
After the gas kind is changed, need be under the suction pressure of appointment, the pressure of working off one's feeling vent one's spleen must be stabilized in specific pressure range, so just can make combustion gas tool proper functioning.And this pressure is exactly to be controlled by pressure-regulating device 5 to finish.
In Fig. 1, can see and have only one group of pressure adjusting spring to work, dual-purpose push rod 53 does not have contact membranes chip module 3 with auxiliary spring 54, therefore diaphragm unit 3 is not applied any external force, the effect of having only 51 pairs of diaphragm units of pressure adjusting spring to produce power, the state of this moment is exactly the state of rock gas, rotates pressure regulation sheet 7 up and down and just can change the size that pressure adjusting spring 51 compression heights are regulated gas outlet pressure.
Dual-purpose as can see from Figure 2 push rod 53 and auxiliary spring 54 have changed direction, and auxiliary spring 53 touches diaphragm unit 3, and be the liquid gas state this moment.Configured the size of outlet pressure when the liquid gas state dispatches from the factory, can not change the size of outlet pressure by any adjusting, can guarantee with this can the mistuning parameter in the natural gas liquefaction gas shift process.
When the user need become the liquid gas state by Natural Gas Conversion, the top cover 52 of only need outwarding winding was counterclockwise backed out dual-purpose push rod 53, is screwed to the end again together with auxiliary spring 54 reverses its direction, at last top cover 52 and upper shell 11 is screwed.If liquid gas will be converted to the rock gas state, the said method repetitive operation is got final product for one time.
Adopt in the utility model and diaphragm unit is set in valve body the body cavity body is divided into fluid chamber and pressure regulating cavity, at the fixedly connected valve rod assembly of diaphragm unit, diaphragm unit and valve rod assembly will rise after being subjected to the pressure of gas, thereby make the close sealing seat that is arranged in the fluid chamber of conical plug in the valve rod assembly, reach the effect of adjustments of gas flow; After more ventilation is planted, can open the top cover that is arranged on the upper shell, change the position of dual-purpose push rod, use auxiliary spring further to the diaphragm unit effect, thereby realize the control valve rod assembly, the gas flow of control flows body cavity kind makes pressure maintaining valve can be adapted to two kinds of different gas kinds respectively effectively.
Claims (8)
1, the dual-purpose pressure maintaining valve of novel natural gas liquid gas, comprise valve body (1), be provided with valve pocket (2) in the valve body (1), it is characterized in that: be provided with the diaphragm unit (3) that valve pocket (2) is divided into fluid chamber (21) and pressure regulating cavity (22) in the valve pocket (2), described pressure regulating cavity (22) has a spiracle (221), in fluid chamber (21), be provided with the fluid passage, in diaphragm unit (3) central authorities, be fixedly connected with the valve rod assembly (4) of flow size in the may command fluid passage, be provided with dismountable pressure regulation assembly (5) at described pressure regulating cavity (22).
2, the dual-purpose pressure maintaining valve of novel natural gas liquid gas according to claim 1 is characterized in that described valve body (1) comprises valve body upper casing (11) and valve body lower casing (12).
3, the dual-purpose pressure maintaining valve of novel natural gas liquid gas according to claim 2, it is characterized in that in described valve body upper casing (11), being provided with pressure regulation assembly (5), described pressure regulation assembly (5) comprises the pressure regulation sheet (7) that is arranged in the valve body upper casing (11), between pressure regulation sheet (7) and diaphragm unit (3), be provided with pressure adjusting spring (51), described pressure regulation assembly (5) also comprises the top cover (52) that can be fixed on the valve body upper casing (11), between top cover (52) and diaphragm unit (3), be provided with the push rod (53) that to turn installation, on described push rod (53), be provided with limited step (531), at push rod (53) but on be set with the auxiliary spring (54) of roof pressure on diaphragm unit (3) when the conversion of gas kind.
4, the dual-purpose pressure maintaining valve of novel natural gas liquid gas according to claim 1 is characterized in that described diaphragm unit (3) comprises diaphragm (31) and pallet (32), is fixedly connected with valve rod assembly (4) in diaphragm (31) and pallet (32) central authorities.
5, according to claim 1 or the dual-purpose pressure maintaining valve of 4 described novel natural gas liquid gas, it is characterized in that valve rod assembly (4) comprises mandrel (41), described mandrel (41) one ends are fixedly connected on the diaphragm unit (3), and mandrel (41) the other end is provided with the conical plug (42) of the interior flow size of controllable flow body cavity (21).
6, the dual-purpose pressure maintaining valve of novel natural gas liquid gas according to claim 2 is characterized in that being provided with sealing seat (6) on described lower shell body (12), and described valve rod assembly (4) is arranged in the sealing seat (6).
7, the dual-purpose pressure maintaining valve of novel natural gas liquid gas according to claim 3 is characterized in that being provided with the restraining groove (532) that is used for fixing auxiliary spring (54) in limited step (531) one sides.
8, the dual-purpose pressure maintaining valve of novel natural gas liquid gas according to claim 3, it is characterized in that described push rod (53) for hollow tube body, in described top cover (52), be provided with and insert described hollow ram (53) and can make push rod (53) be fixed on core bar (522) in the valve body upper casing (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920051377U CN201373152Y (en) | 2009-02-14 | 2009-02-14 | Novel natural gas and liquefied gas dual-purpose pressure stabilizing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920051377U CN201373152Y (en) | 2009-02-14 | 2009-02-14 | Novel natural gas and liquefied gas dual-purpose pressure stabilizing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201373152Y true CN201373152Y (en) | 2009-12-30 |
Family
ID=41499233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920051377U Expired - Lifetime CN201373152Y (en) | 2009-02-14 | 2009-02-14 | Novel natural gas and liquefied gas dual-purpose pressure stabilizing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201373152Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390039A (en) * | 2014-09-12 | 2015-03-04 | 诸文伟 | Natural gas self-standing pressure regulator |
| CN107448656A (en) * | 2016-06-01 | 2017-12-08 | 江门市国隆精密阀体有限公司 | A kind of gas valve |
-
2009
- 2009-02-14 CN CN200920051377U patent/CN201373152Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390039A (en) * | 2014-09-12 | 2015-03-04 | 诸文伟 | Natural gas self-standing pressure regulator |
| CN107448656A (en) * | 2016-06-01 | 2017-12-08 | 江门市国隆精密阀体有限公司 | A kind of gas valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102067055B (en) | Pressure loaded service regulator with pressure balanced trim | |
| WO2005018789A3 (en) | Oxygen-concentrating device | |
| CN202493900U (en) | Pressure flow regulation device | |
| CN2806923Y (en) | Series connection air-resistance pilot type ultra-high pneumatic proportional pressure-reducing valve | |
| KR101410020B1 (en) | Nitrogen gas generation device | |
| CN201373152Y (en) | Novel natural gas and liquefied gas dual-purpose pressure stabilizing valve | |
| CN1699808A (en) | Slide valve type pilot ultra-high pressure pneumatic proportional pressure-reducing valve | |
| CN201916494U (en) | Multi-step low-pressure regulating valve for small-flow gas | |
| CN2784699Y (en) | Pressure stable throttle valve | |
| CN104633264A (en) | Gas pressure reducing valve | |
| CN209671698U (en) | A kind of overflow valve | |
| CN204437459U (en) | Gas pressure reducer | |
| CN207333860U (en) | Second depressurized fast-connecting type pressure regulator valve | |
| JP3219485U (en) | Energy-saving large-capacity direct acting precision pressure regulating filtration valve | |
| CN201810840U (en) | Low-pressure regulating valve of small flow gas | |
| CN103307323A (en) | High-pressure reducing valve | |
| CN202176813U (en) | Self-operated pressure-regulating valve with dustproof function | |
| CN2620806Y (en) | Pressure control valve | |
| CN103185616B (en) | Flowmeter | |
| CN219932967U (en) | Double-control pressure regulating valve | |
| CN205350480U (en) | Pressure regulating valve | |
| EP2215537B1 (en) | Adjustable pressure reduction valve | |
| CN212407674U (en) | Gas pressure regulator control device | |
| CN2479320Y (en) | Stable pressure and steady flow regulating valve | |
| CN201508498U (en) | Automatic regulator for flow of steam |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091230 |
|
| CX01 | Expiry of patent term |