CN2791286Y - Pressure reducer for gas generator - Google Patents
Pressure reducer for gas generator Download PDFInfo
- Publication number
- CN2791286Y CN2791286Y CN 200420110045 CN200420110045U CN2791286Y CN 2791286 Y CN2791286 Y CN 2791286Y CN 200420110045 CN200420110045 CN 200420110045 CN 200420110045 U CN200420110045 U CN 200420110045U CN 2791286 Y CN2791286 Y CN 2791286Y
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- China
- Prior art keywords
- seat
- chamber
- level
- decompressor
- diaphragm
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- Expired - Fee Related
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Abstract
The utility model relates to a pressure reducer having safety protection measures for a fuel gas generator. The utility model comprises a double-sided concave pressure reducer seat, a primary pressure-reducing cavity, a secondary pressure-reducing cavity, a vacuum pressure-reducing cavity and a secondary spring lever mechanism, wherein the primary pressure-reducing cavity is arranged on a concave seat of one surface of the pressure reducer seat; the secondary pressure-reducing cavity is arranged on a concave seat of the other surface of the pressure reducer seat; the vacuum pressure-reducing cavity is arranged inside the secondary pressure-reducing cavity; the secondary spring lever mechanism is arranged on the secondary pressure-reducing cavity. The gas flowrate of fuel gas output by the pressure reducer is controlled by the value of the vacuum degree in the vacuum pressure-reducing cavity. When a generator works, the pressure in the vacuum pressure-reducing cavity is reduced, namely the vacuum degree is raised, a vacuum cavity diaphragm is separated from a secondary lever and the pressure reducer works normally. When the generator stops, the vacuum degree disappears, the vacuum cavity diaphragm returns, a push lever is forced to drive the secondary valve to be closed, and fuel gas is not output; thus, the fuel gas is safely cut off and safety is guaranteed. The gas supplying flowrate of the pressure reducer can be controlled by regulating the secondary spring lever mechanism so as to meet the needs of the fuel gas generators having different power.
Description
Technical field
The utility model relates to a kind of decompressor, particularly a kind of decompressor that is used for gas electricity generator.
Background technique
Common decompressor is to adopt leverage, decompression diaphragm and spring to constitute a relief chamber.Its principle that reduces pressure: the valve of relief chamber is often opened, and when source of the gas inserted decompressor, gas entered relief chamber, the pressure of relief chamber rises, and promotes the decompression motion of membrane, and the decompression diaphragm drives the valve motion on the lever, valve turns down, and the gas that enters relief chamber reduces; When the gas of relief chamber was outwards carried, the pressure of relief chamber descended, and valve is opened greatly, and the gas that enters relief chamber increases; When gas flow one timing of relief chamber output, the aperture of valve keeps a transient equiliblium, realizes the gas decompression.
What gas electricity generator was used is rock gas, liquefied petroleum gas (LPG) and biogas etc., and these gases all are inflammable gass.Therefore, its used decompressor guarantees that safety is crucial.Above-mentioned common decompressor lacks safety measure.Security can not get ensureing.
Summary of the invention
The purpose of this utility model provides a kind of decompressor that has safety measure that is used for gas electricity generator in order to overcome the decompressor that lacks safety assurance in the technology formerly.
The utility model in order to achieve the above object, the technical measures of being taked are: the decompressor seat that contains two-sided spill, one-level chamber lid, the secondary chamber lid, one-level chamber diaphragm, secondary chamber diaphragm, vacuum chamber diaphragm, the lever assembly that contains one-level valve and lever, the hand push button that contains the second lever assembly of secondary valve and lever and contain button, push rod, Returnning spring and manual valve seat.With one-level chamber lid one-level chamber diaphragm is pressed abd fixed on the one side spill seat of decompressor seat and constitutes the one-level relief chamber; With secondary chamber lid the secondary chamber diaphragm is pressed abd fixed on the spill seat of another side of decompressor seat and constitutes the second depressurized chamber; In the second depressurized chamber, the vacuum chamber diaphragm is fixed on and constitutes the vacuum decompression chamber on the decompressor seat; There is the outer end to connect the vacuum through hole of vacuum tube joint on the decompressor seat in the vacuum decompression chamber; Put the one-level lever assembly that contains one-level valve and lever on the inlet hole on the decompressor seat in the one-level relief chamber; Air outlet hole in the one-level relief chamber on the decompressor seat feeds in the second depressurized chamber; Put the second lever assembly that contains secondary valve and lever on the air outlet hole of the one-level relief chamber in the second depressurized chamber; Lever in the second lever assembly links to each other with the secondary chamber diaphragm, and contacts with the vacuum chamber diaphragm; The hand push button that contains button, push rod, Returnning spring and manual valve seat places secondary chamber to cover.Also contain the two-level spring leverage on the second depressurized chamber.
As above-mentioned structure, the inlet hole on the decompressor seat of combustion gas in the one-level relief chamber enters in the one-level relief chamber, is entered the flow of one-level relief chamber by the size control combustion gas of the valve opening in the one-level lever assembly.The combustion gas air outlet hole on the decompressor seat in the one-level relief chamber that enters in the one-level relief chamber enters in the second depressurized chamber.The combustion gas that enters in the second depressurized chamber is controlled by the size of the secondary valve opening in the second lever assembly.
When using decompressor of the present utility model, usually be that decompressor is connected between gas electricity generator and the fuel gas mixer.When as if the startup gas electricity generator, hand push button 1～3 second (in order that providing gas electricity generator to start required combustion gas) at first is provided, start gas electricity generator then; After gas electricity generator starts, by the effect of the fuel gas mixer that connects, the pressure in the vacuum chamber of decompressor is reduced, the vacuum chamber diaphragm separates with second lever.At this moment, there is pressure reduction, makes the secondary chamber motion of membrane, drive the secondary valve opening in the second lever assembly because the pressure in the vacuum chamber reduces to have caused in the second depressurized chamber Yu in the vacuum chamber.Thereby combustion gas enters in the second depressurized chamber.Then the size of secondary valve opening is that height by degree of vacuum in the vacuum chamber decides.That is to say that the gas flow that the air outlet hole in the second depressurized chamber on the decompressor seat outputs in the gas electricity generator is to be controlled by the degree of vacuum in the vacuum chamber.When gas electricity generator quit work, fuel gas mixer also quit work, and the pressure recovery in the vacuum chamber is normal, the secondary valve closing, and combustion gas stops to enter in the second depressurized chamber, also with regard to the stop supplies combustion gas.
As above-mentioned, the remarkable benefit of the utility model decompressor.
1. the utility model has had safety guarantee.Because the utility model adopts vacuum controlled security enforcement resetting-mechanism.Be separated out a vacuum chamber in the second depressurized chamber of decompressor, the vacuum diaphragm drives the second lever assembly, makes the secondary valve normally closed, obtains safety guarantee; When generator is worked, the vacuum chamber internal pressure is reduced, the vacuum diaphragm separates with second lever, the decompressor proper functioning; When engine shutdown, degree of vacuum disappears, and vacuum diaphragm return is forced to promote second lever and driven the secondary valve closing, and combustion gas is no longer exported, and has realized the safety cut-off combustion gas.That is to say that the control technique of gas flow is the rate of discharge that adopts degree of vacuum pressure reduction control combustion gas.The moving secondary valve of trying hard to recommend that the secondary diaphragm of decompressor adopts degree of vacuum pressure reduction to produce opens and closes.The one side of secondary diaphragm is the second depressurized chamber, links to each other with the mixer of the gas handling system of generator.When generator is worked, mixer fuel gas pipeline internal pressure reduces (being lower than atmospheric pressure), the another side of secondary diaphragm leads to atmosphere, so the two sides of diaphragm produces pressure reduction, diaphragm moves to relief chamber (vacuum chamber) direction, drive second lever, the valve open on the second lever, gas flows into the second depressurized chamber from the secondary valve; When the operating mode of generator was stablized, second depressurized diaphragm and valve kept transient equiliblium, delivery of fuel gas; When generator outage, degree of vacuum disappears, second depressurized diaphragm return, and the valve closing outlet, combustion gas is no longer exported, and cuts off combustion gas, has guaranteed safety.
2. decompressor of the present utility model is to adopt to force starting control, contains hand push button mechanism, and is simple in structure, safe and reliable.When starting gas electricity generator, pressed hand push button earlier 1～3 second, provide starting required combustion gas, can successfully start gas electricity generator.
3. the utility model has adopted the second depressurized structure.The open and close of the one-level valve of one-level relief chamber are by gaseous-pressure (the comprising one-level spring lever mechanism) control that enters in the one-level relief chamber; The open and close of the secondary valve in second depressurized chamber control the motion of vacuum diaphragm by the height of the degree of vacuum in the vacuum chamber.Not only safety is secure, and, can accurately control the flow of combustion gas.
4. each component of the utility model decompressor mainly is to be processed by die cast metal.Because the development of modern mechanical processing technique and die-casting technique, be easy to reach and be used for the higher decompressor of the gas electricity generator accuracy of form and position.For non-metal workpieces such as diaphragms, though that used material requires is corrosion-resistant, endurance, high-low temperature resistant be than higher.But the development of modern macromolecular material can meet the demands fully.So the utility model can more easily be produced qualified product.
5. the utility model can satisfy the needs of the gas electricity generator of different capacity.Because also contain the two-level spring leverage on the second depressurized chamber.Therefore, the gas flow in the second depressurized chamber can also be controlled its gas supply flow by manual tune two-level spring leverage except with the vacuum degree control in the vacuum chamber.So.The motor that just can be fit to power 0.2～9KW as decompressor in the present embodiment is the gas electricity generator of power.
Description of drawings
Fig. 1 is used for the structural representation of the decompressor of gas electricity generator for the utility model.
Embodiment
Further specify the structure of the utility model decompressor below in conjunction with accompanying drawing.
As shown in Figure 1, the utility model decompressor contains: the decompressor seat 1 of two-sided spill, one-level chamber lid 10, secondary chamber lid 35, by one-level chamber diaphragm 2 be seated in the first diaphragm assembly that one-level spring seat 11 on the one-level chamber diaphragm 2 and connecting pin 9 are formed; By secondary chamber diaphragm 19 be connected the secondary diaphragm assembly that secondary diaphragm seat 20 on the secondary chamber diaphragm 19 and secondary diaphragm stiffening plate 22 are formed with rivet 23; By vacuum chamber diaphragm 32 be connected the vacuum chamber diaphragm assembly that vacuum diaphragm stiffening plate 29 on the vacuum chamber diaphragm 32 and vacuum chamber spring seat 30 and vacuum chamber diaphragm 32 are formed by pin 28; Contain one-level lever 3, one-level valve 4, the one-level lever assembly of one-level valve base 5 and one-level lever pin 6; The second lever assembly that contains second lever pin 13, secondary valve 14, second lever 15; Be used for 10 bolts 12 that are connected on the decompressor seat 1 spill seat are simultaneously covered in the one-level chamber.Place the double-screw bolt 7 on the one-level chamber lid 10, be compressed in one-level spring seat 11 and one-level chamber and cover one-level spring 8 between 10 upper studs 7.Be used for secondary chamber lid 35 and the fixing bolt 34 of decompressor seat 1 another side spill seat.Be compressed in the vacuum chamber spring 31 between vacuum spring seat 30 and the decompressor seat 1.The hand push button that contains button 24, push rod 25, Returnning spring 26 and manual valve seat 27.Vacuum chamber diaphragm 32 in the vacuum chamber diaphragm assembly is fixed on vacuum chamber pressing plate 33 and clamping bolt 21 on the decompressor seat 1.Be connected to the air input joint 38 on the suction port on the decompression gas seat between one-level chamber lid 10 and the decompressor seat 1, be connected to the air outlet adapter 36 on the air outlet on the decompressor seat between secondary chamber lid 35 and the decompressor seat 1, be connected to the vacuum tube joint on the vacuum hole 37 on the decompressor seat 1.Also contain by two-level spring 16 the two-level spring leverage that O-ring seals 17 and adjusting screw 18 are formed.
One-level chamber diaphragm 2 in the said first diaphragm assembly is pressed abd fixed on the spill seat of decompressor seat 1 one side by one-level chamber lid 10, constitutes one-level relief chamber A between first diaphragm assembly and the decompressor seat 1; Said one-level lever assembly places in the one-level relief chamber A, one-level valve 4 in the one-level lever assembly places on the suction port on the decompressor seat 1, connecting pin 9 in the first diaphragm assembly is connected by pin-and-hole with one-level lever assembly, and one-level lever assembly is fixed in the groove of the decompressor seat 1 in the one-level relief chamber A by one-level lever pin 6.
Secondary chamber diaphragm 19 in the said secondary diaphragm assembly is pressed abd fixed between decompressor seat 1 and the secondary chamber lid 35 by fixing bolt 34, is formed in the second depressurized chamber B between secondary diaphragm assembly and the decompressor seat 1.Second lever 15 is connected with secondary diaphragm seat 20 (mounting hole is arranged) on the secondary diaphragm assembly; Secondary valve 14 places on the air outlet of the second depressurized chamber A in the B of second depressurized chamber.Decompressor seat 1 usefulness in adjusting screw 18 in the said two-level spring leverage and the second depressurized chamber B is threaded, and seals with O-ring seals 17; Two-level spring 16 is compressed between adjusting screw 18 and the second lever 15.The pretightening force of spring can be adjusted by adjusting screw 18.Adjust adjusting screw 18 and make second lever 15 drive 14 unlatchings of secondary valve, can make the air demand in the second depressurized device B obtain adjusting, can satisfy the needs of the gas electricity generator of different capacity.
Said vacuum chamber diaphragm assembly is pressed abd fixed on the decompressor seat 1 in the B of second depressurized chamber by vacuum chamber pressing plate 33 and clamping bolt 21.Constitute vacuum chamber C between vacuum chamber diaphragm assembly and the decompressor seat 1.Vacuum chamber spring 31 is compressed between vacuum chamber C interior the vacuum chamber spring seat 30 and decompressor seat 1
The said hand push button that contains button 24, push rod 25, Returnning spring 26, manual valve seat 27, manually valve seat 27 can be with being threaded with secondary chamber lid 35, and push rod 25 stretches between secondary chamber lid and the secondary chamber diaphragm.When pressing knob down, push rod 25 contact secondary chamber diaphragm assemblies drive second lever and open the secondary valve, are that combustion gas flows in the second depressurized chamber B.Work as release button, secondary chamber diaphragm assembly drives second lever again and closes the secondary valve, stops combustion gas and flows in the second depressurized chamber B.
As above-mentioned structure, fuel gas flow path is: combustion gas enters from air input joint 38, via the through hole in the decompressor seat 1, goes into one-level relief chamber A from the one-level valve of opening 4, passes through the decompressor seat (air outlet hole that leads to secondary valve 14 in 1 again; Enter second depressurized chamber B from secondary valve 14, from the pipeline output of air outlet adapter 36.
When the utility model decompressor with said structure is installed in power is that 0.2～9KW motor is on the gas electricity generator of driving force the time, and decompressor just becomes a vitals of fuel supply system.And being connected to fuel gas mixer with fuel tube, generator becomes rock gas, the liquefied petroleum gas (LPG) of inflammable gas, the gas electricity generator of biogas.
If during starter-generator, press 1～3 second of starting button earlier, then starter generator; Behind the starter generator, pressure in the vacuum chamber C reduces, vacuum diaphragm stiffening plate 29 separates with second lever 15, secondary chamber diaphragm 19 in air outlet adapter 36 pipelines degree of vacuum and the differential pressure action between the barometric pressure under move, secondary valve 14 is opened, the open degree of the degree of vacuum size decision secondary valve 14 in air outlet adapter 36 pipelines, the rate of discharge of control decompressor.
When generator outage, secondary chamber diaphragm 19 is under the acting in conjunction of two-level spring 16 and vacuum chamber sprung diaphragm mechanism, and second lever 15 drives secondary valve 14 and closes, and cuts off the supply of combustion gas.
Obviously, the utility model is the safety protection by the security enforcement resetting-mechanism of vacuum degree control.Adopt diaphragm and spring mechanism, and vacuum chamber C is arranged, the vacuum diaphragm assembly contacts with second lever 15.The vacuum tube joint 37 of vacuum chamber C links to each other with the vacuum tube of fuel gas mixer; The vacuum diaphragm assembly is pushing away second lever 15, makes secondary valve 14 normally closed.Avoid gas leakage, guarantee safety; When engine operation, suction tude produces degree of vacuum, and vacuum chamber C pressure reduces, and the vacuum diaphragm assembly separates with second lever 15, the decompressor proper functioning; When engine shutdown, degree of vacuum disappears, and vacuum chamber diaphragm 32 returns are forced to promote second lever 15 drive secondary valves 14 and closed, and combustion gas is no longer exported, and realizes the safety cut-off combustion gas.
Claims (3)
1. decompressor that is used for gas electricity generator, contain the decompressor seat, one-level chamber lid, the secondary chamber lid, by one-level chamber diaphragm be seated in the first diaphragm assembly that the one-level spring seat connecting pin on the diaphragm of one-level chamber is formed, contain the one-level lever, the one-level valve, the one-level lever assembly of one-level valve base and one-level lever pin, be connected to the air input joint on the suction port on the decompression gas seat between one-level chamber lid and the decompressor seat, the double-screw bolt that places the one-level chamber to cover is compressed in one-level spring seat and one-level chamber and covers one-level spring between the double-screw bolt; One-level chamber diaphragm in the said first diaphragm assembly is pressed abd fixed on the decompressor seat by one-level chamber lid, constitutes the one-level relief chamber between first diaphragm assembly and the decompressor seat; One-level lever assembly places in the one-level relief chamber, one-level valve in the one-level lever assembly places on the suction port on the decompressor seat, connecting pin in the first diaphragm assembly is connected with one-level lever assembly, and one-level lever assembly is fixed in the groove of the decompressor seat in the one-level relief chamber by the one-level lever pin; It is characterized in that: the decompressor seat is bi-concave, contains the secondary chamber lid, and one-level chamber lid is fixed on the one side spill seat of decompressor seat, and secondary chamber is covered on the spill seat of the another side that is fixed on the decompressor seat; Also contain by the secondary chamber diaphragm be connected the secondary diaphragm assembly that secondary diaphragm seat on the secondary chamber diaphragm and secondary diaphragm stiffening plate are formed with rivet, contain the second lever pin, the secondary valve, the second lever assembly of second lever, by the vacuum chamber diaphragm be connected the vacuum chamber diaphragm assembly that vacuum diaphragm stiffening plate on the vacuum chamber diaphragm and vacuum chamber spring seat are formed by pin, be compressed in the vacuum chamber spring between vacuum spring seat and the decompressor seat, contain button, push rod, the hand push button of Returnning spring and manual valve seat, be connected to the air input joint on the suction port on the decompression gas seat between one-level chamber lid and the decompressor seat, be connected to the air outlet adapter on the air outlet on the decompressor seat between secondary chamber lid and the decompressor seat, be connected to the vacuum tube joint on the vacuum hole on the decompressor seat; Secondary chamber diaphragm in the said secondary diaphragm assembly is pressed abd fixed between decompressor seat and the secondary chamber lid by fixing bolt, be formed in the second depressurized chamber between secondary diaphragm assembly and the decompressor seat, second lever is connected with secondary diaphragm seat on the secondary diaphragm assembly, the secondary valve place the one-level relief chamber feed in the second depressurized chamber the air outlet on; Said vacuum chamber diaphragm assembly is fixed on the decompressor seat in the second depressurized chamber by vacuum chamber pressing plate and tightened bolt presses, be formed in vacuum chamber diaphragm assembly in the second depressurized chamber and the vacuum chamber between the decompressor seat, the vacuum chamber spring is compressed between the vacuum chamber spring seat and decompressor seat in the vacuum chamber.
2. the decompressor that is used for gas electricity generator according to claim 1, it is characterized in that: also contain by two-level spring, the two-level spring leverage that O-ring seals and adjusting screw are formed, wherein the decompressor seat in adjusting screw and the second depressurized chamber is with being threaded, and with O-ring seals sealing, two-level spring is compressed between adjusting screw and the second lever.
3. the decompressor that is used for gas electricity generator according to claim 1 is characterized in that: also contain to be useful on the bolt that is connected on the decompressor seat one side spill seat is covered in the one-level chamber; Be used for secondary chamber lid and the fixing fixing bolt of decompressor seat another side spill seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420110045 CN2791286Y (en) | 2004-11-19 | 2004-11-19 | Pressure reducer for gas generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420110045 CN2791286Y (en) | 2004-11-19 | 2004-11-19 | Pressure reducer for gas generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2791286Y true CN2791286Y (en) | 2006-06-28 |
Family
ID=36807357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420110045 Expired - Fee Related CN2791286Y (en) | 2004-11-19 | 2004-11-19 | Pressure reducer for gas generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2791286Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871407A (en) * | 2010-05-19 | 2010-10-27 | 方伟东 | Electronic control pressure reducing regulator for gas fired automobile |
| CN112963595A (en) * | 2021-01-29 | 2021-06-15 | 重庆翔中燃气设备有限公司 | Gas negative pressure valve and assembling method thereof |
| CN113339555A (en) * | 2021-04-20 | 2021-09-03 | 宁波万安股份有限公司 | Gas pressure stabilizer |
-
2004
- 2004-11-19 CN CN 200420110045 patent/CN2791286Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871407A (en) * | 2010-05-19 | 2010-10-27 | 方伟东 | Electronic control pressure reducing regulator for gas fired automobile |
| CN112963595A (en) * | 2021-01-29 | 2021-06-15 | 重庆翔中燃气设备有限公司 | Gas negative pressure valve and assembling method thereof |
| CN113339555A (en) * | 2021-04-20 | 2021-09-03 | 宁波万安股份有限公司 | Gas pressure stabilizer |
| WO2022222252A1 (en) * | 2021-04-20 | 2022-10-27 | 宁波万安股份有限公司 | Fuel gas pressure-stabilizing apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |