CN204922128U - Do benefit to natural gas relief pressure valve of controlled pressure output precision - Google Patents
Do benefit to natural gas relief pressure valve of controlled pressure output precision Download PDFInfo
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- CN204922128U CN204922128U CN201520613892.2U CN201520613892U CN204922128U CN 204922128 U CN204922128 U CN 204922128U CN 201520613892 U CN201520613892 U CN 201520613892U CN 204922128 U CN204922128 U CN 204922128U
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- connecting rod
- spool
- valve body
- voltage tube
- spring
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Abstract
The utility model discloses a do benefit to natural gas relief pressure valve of controlled pressure output precision, including the valve body, the import pipe, outlet pipe and first atmospheric pressure chamber, the case, still be provided with first diaphragm in the first atmospheric pressure chamber, and still be provided with high -voltage tube and low -voltage tube on the valve body, it has adjusting bolt to go back threaded connection on the valve body, still be provided with first spring between thread end and the first diaphragm, still be provided with case arrestment mechanism between first diaphragm and the case, case arrestment mechanism includes first connecting rod, ball sealer and second spring, still is provided with the ball grooves who laminates with the ball sealer sphere on the valve body, still is provided with second atmospheric pressure chamber, second diaphragm, second connecting rod on this relief pressure valve and adopts and press the pipe. The utility model discloses simple structure, the state of opening are convenient for control, and first diaphragm operational environment is good simultaneously, is convenient for make the utility model discloses have longer life and keep good decompression precision in long -time, simultaneously the utility model discloses the high decompression of specially adapted is than gaseous accurate the step -down.
Description
Technical field
The utility model relates to fluid-transferring pipe piece apparatus field, particularly relates to a kind of natural gas pressure-reducing valve being beneficial to pilot pressure output accuracy.
Background technique
Rock gas is one of safer combustion gas, and it is not containing carbon monoxide, also lta, once leak, can upwards spread immediately, not easily gather formation explosive gas, Security is higher.Adopt rock gas as the energy, the consumption of coal and oil can be reduced, thus environmental protect pollution problem greatly; Rock gas, as a kind of clean energy resource, can reduce sulfur dioxide and dust discharge amount nearly 100%, reduces CO2 emissions 60% and oxynitride discharge amount 50%, and contributes to reducing acid rain formation, global greenhouse effect of releiving, fundamentally environmental protect quality.Economical and practical rock gas is compared with artificial coal gas, suitable with specific heat of combustion price, and rock gas is clean clean, can extend the working life of kitchen range, also be conducive to the expenditure that user reduces maintenance expenses.The advantage of above rock gas makes rock gas as industry and domestic gas fuel, has the advantages such as unit calorific value is high, exhaust pollution is little, supply is reliable, price is low, has become the developing direction of world's clean fuel.
The transport of rock gas generally adopts pressure piping and transportation tank car, from collection, be transported to user use generally need to pressurize to it, decompression operation, natural gas pressure-reducing valve is as the visual plant in decompression process, develop the structural type such as piston type and primary diaphragm formula, simultaneously, primary diaphragm formula reduction valve, again with highly sensitive feature, is widely used in larger gas stove stokehold natural gas depressurization.The structure of further optimization primary diaphragm formula reduction valve, is conducive to optimizing the utilization promoting rock gas further undoubtedly.
Model utility content
For above-mentioned primary diaphragm formula reduction valve again with highly sensitive feature, be widely used in larger gas stove stokehold natural gas depressurization.The structure of further optimization primary diaphragm formula reduction valve, be conducive to the problem optimizing the utilization promoting rock gas further undoubtedly, the utility model provides a kind of natural gas pressure-reducing valve being beneficial to pilot pressure output accuracy.
For the problems referred to above, a kind of natural gas pressure-reducing valve being beneficial to pilot pressure output accuracy that the utility model provides reaches model utility object by following technological points: a kind of natural gas pressure-reducing valve being beneficial to pilot pressure output accuracy, comprise valve body, described valve body is provided with inlet tube, outer pipe and the first atmospheric pressure cavity, described inlet tube is connected by spool with outer pipe, also primary diaphragm is provided with in described first atmospheric pressure cavity, first atmospheric pressure cavity is divided into upper cavity and lower chamber by described primary diaphragm, and valve body is also provided with high-voltage tube and low-voltage tube, described high-voltage tube realizes inlet tube and is connected with the gas circuit of lower chamber, described low-voltage tube realizes outer pipe and is connected with the gas circuit of upper cavity, described valve body has also been threaded adjusting bolt, the threaded end of described adjusting bolt stretches in upper cavity, and be also provided with the first spring between described threaded end and primary diaphragm, spool arrestment mechanism is also provided with between described primary diaphragm and spool, described spool arrestment mechanism comprises first connecting rod, ball sealer and the second spring, one end of described first connecting rod is fixed on primary diaphragm and is arranged on the side of lower chamber, ball sealer is fixed on the other end of first connecting rod, the two ends of the second spring are individually fixed on ball sealer and spool, and valve body is also provided with the ball recess of fitting with ball sealer sphere, described ball recess is a part for high-voltage tube, and ball sealer is between ball recess and high-voltage tube entry end,
Described spool is also connected with second connecting rod, described valve body is also provided with the hole with second connecting rod Spielpassung, described valve body is also provided with the second atmospheric pressure cavity, the secondary diaphragm be fixedly connected with second connecting rod is provided with in described second atmospheric pressure cavity, described second atmospheric pressure cavity be also provided with between high-voltage tube be communicated with for source of the gas adopt pressure pipe, and the tie point adopting pressure pipe and high-voltage tube is between ball recess and primary diaphragm, second connecting rod is between spool and the second atmospheric pressure cavity;
The resiliently deformable direction of deformation direction, the first spring and the second spring when the opening and closing direction of described spool, primary diaphragm pressurized, the axial direction of adjusting bolt, the axial direction of second connecting rod are parallel to each other.
Concrete, above first atmospheric pressure cavity, the secondary valve of these reduction valve of Structure composing such as primary diaphragm, in the utility model, by high-voltage tube, the gas in inlet tube before decompression is introduced in lower chamber, from outer pipe, post-decompression gas is introduced in upper cavity by low-voltage tube, more than before decompression, post-decompression two kinds of gases, the elastic force of the first spring acts on primary diaphragm, before decompression, when there is particular pressure differential in decompression latter two gas, the elastic force of comprehensive first spring, make the elastic deformation amount that primary diaphragm reaches stable, above elastic deformation amount passes through first connecting rod, the transmission effect of ball sealer and the second spring is on spool, realize the adjustment of spool aperture, reach the object of the structure pressure-reducing that the utility model provides, and the decrement that the adjustment of the outlet pressure that reduces pressure adjusts the first spring by adjusting bolt is realized.
Simultaneously, in above structure, the second atmospheric pressure cavity and secondary diaphragm form another the secondary valve on valve body, are arranged on ball sealer one end towards primary diaphragm owing to adopting pressure pipe entry end, like this, this secondary valve also only could realize its function after the seal failure of ball sealer and ball recess.In this secondary valve arrangement, the guiding to spool is not achieved by means of only second connecting rod, above structure is convenient to the secondary diaphragm compression face size by arranging particular form simultaneously, when Pressure reducing ratio of the present utility model is larger, by the second atmospheric pressure cavity to the compensation of lower chamber to primary diaphragm pressure, realize the rock gas air pressure of the utility model in range of regulation required by accurate output.Now, the moving direction of secondary diaphragm brake spool is contrary with the direction that upper cavity brake spool moves.
In this structure, the on off operating mode being realized high-voltage tube by the ball sealer arranged is regulated, be convenient to the adjustment of utility model works state: because ball sealer and the first spring are positioned at the not homonymy of primary diaphragm, so need by compressing the first spring, namely in upper cavity, screw in the mode of adjusting bolt, after ball sealer and ball recess are departed from, just in lower chamber and upper cavity, post-decompression pressure medium before and after decompression can be injected respectively, therefore the utility model has the advantage that on off state is convenient to adjust; Simultaneously, the utility model does not adopt as structural types such as spiracle, pressure release escape orifices, therefore gas-tight, primary diaphragm long-term disposal are totally in the course of the work, in the environment of not easily enrichment steam, namely the utility model also has long service life, can ensure the advantages such as decompression precision for a long time can to ensure the utility model.
Further technological scheme is:
For optimizing each action component stressing conditions in use in the utility model, namely on even all parts cross section each point stressed, avoid or reduce separately and valve body occur rub and affect the life-span of the present utility model, produce unnecessary noise etc., described spool and inlet tube and outer pipe three form stop valve current limliting form, described primary diaphragm is circular, described first connecting rod is shaft-like, and the axis collinear of spool, primary diaphragm, the first spring, the second spring, second connecting rod and first connecting rod.
Be convenient to as a kind of the structural type manufacturing, be conducive to reducing the utility model volume, described high-voltage tube is a straight length, and described first connecting rod and ball sealer are all or part of is arranged in high-voltage tube.
Affect working state of the present utility model or decompression parameter for ease of preventing the non-artificial rotation of adjusting bolt, described adjusting bolt has also been threaded lock nut.
As the technological scheme that static seal under a kind of corrosion-resistant, low pressure is effective, the ball of described ball sealer to be material be fluorine rubber.
The utility model has following beneficial effect:
1, the utility model structure is simple, the on off operating mode being realized high-voltage tube by the ball sealer arranged is regulated, be convenient to the adjustment of utility model works state: because ball sealer and the first spring are positioned at the not homonymy of primary diaphragm, so need by compressing the first spring, namely in upper cavity, screw in the mode of adjusting bolt, after ball sealer and ball recess are departed from, just in lower chamber and upper cavity, post-decompression pressure medium before and after decompression can be injected respectively, therefore the utility model has the advantage that on off state is convenient to adjust.
2, the utility model does not adopt as structural types such as spiracle, pressure release escape orifices, therefore gas-tight, primary diaphragm long-term disposal are totally in the course of the work, in the environment of not easily enrichment steam, namely the utility model also has long service life, can ensure the advantages such as decompression precision for a long time can to ensure the utility model.
3, in above structure, second atmospheric pressure cavity and secondary diaphragm form another the secondary valve on valve body, be arranged on ball sealer one end towards primary diaphragm owing to adopting pressure pipe entry end, like this, this secondary valve also only could realize its function after the seal failure of ball sealer and ball recess.In this secondary valve arrangement, the guiding to spool is not achieved by means of only second connecting rod, above structure is convenient to the secondary diaphragm compression face size by arranging particular form simultaneously, when Pressure reducing ratio of the present utility model is larger, by the second atmospheric pressure cavity to the compensation of lower chamber to primary diaphragm pressure, realize the rock gas air pressure of the utility model in range of regulation required by accurate output.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation being beneficial to a natural gas pressure-reducing valve specific embodiment of pilot pressure output accuracy described in the utility model.
Label shown in accompanying drawing is respectively: 1, the first spring, and 2, primary diaphragm, 3, high-voltage tube, 4, spool, 5, inlet tube, 6, adjusting bolt, 7, first connecting rod, 71, ball sealer, the 8, second spring, 9, valve body, 10, outer pipe, 11, second connecting rod, 12, the first atmospheric pressure cavity, 13, low-voltage tube, 14, adopt pressure pipe, 15, secondary diaphragm, the 16, second atmospheric pressure cavity.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but structure of the present utility model is not limited only to following examples.
Embodiment 1:
As shown in Figure 1, a kind of natural gas pressure-reducing valve being beneficial to pilot pressure output accuracy, comprise valve body 9, described valve body 9 is provided with inlet tube 5, outer pipe 10 and the first atmospheric pressure cavity 12, described inlet tube 5 is connected by spool 4 with outer pipe 10, primary diaphragm 2 is also provided with in described first atmospheric pressure cavity 12, first atmospheric pressure cavity 12 is divided into upper cavity and lower chamber by described primary diaphragm 2, and valve body 9 is also provided with high-voltage tube 3 and low-voltage tube 13, described high-voltage tube 3 realizes inlet tube 5 and is connected with the gas circuit of lower chamber, described low-voltage tube 13 realizes outer pipe 10 and is connected with the gas circuit of upper cavity, described valve body 9 has also been threaded adjusting bolt 6, the threaded end of described adjusting bolt 6 stretches in upper cavity, and between described threaded end and primary diaphragm 2, be also provided with the first spring 1, spool arrestment mechanism is also provided with between described primary diaphragm 2 and spool 4, described spool arrestment mechanism comprises first connecting rod 7, ball sealer 71 and the second spring 8, one end of described first connecting rod 7 is fixed on primary diaphragm 2 and is arranged on the side of lower chamber, ball sealer 71 is fixed on the other end of first connecting rod 7, the two ends of the second spring 8 are individually fixed on ball sealer 71 and spool 4, and valve body 9 is also provided with the ball recess of fitting with ball sealer 71 sphere, described ball recess is a part for high-voltage tube 3, and ball sealer 71 is between ball recess and high-voltage tube 3 entry end,
Described spool 4 is also connected with second connecting rod 11, described valve body 9 is also provided with the hole with second connecting rod 11 Spielpassung, described valve body 9 is also provided with the second atmospheric pressure cavity 16, the secondary diaphragm 15 be fixedly connected with second connecting rod 11 is provided with in described second atmospheric pressure cavity 16, described second atmospheric pressure cavity 16 be also provided with between high-voltage tube 3 be communicated with for source of the gas adopt pressure pipe 14, and the tie point adopting pressure pipe 14 and high-voltage tube 3 is between ball recess and primary diaphragm 2, second connecting rod 11 is between spool 4 and the second atmospheric pressure cavity 16;
The resiliently deformable direction of deformation direction, the first spring 1 and the second spring 8 when the opening and closing direction of described spool 4, primary diaphragm 2 pressurized, the axial direction of adjusting bolt 6, the axial direction of second connecting rod 11 are parallel to each other.
Concrete, above first atmospheric pressure cavity 12, the secondary valve of this reduction valve such as Structure composing such as primary diaphragm 2 grade, in the utility model, by high-voltage tube 3, the gas in inlet tube 5 before decompression is introduced in lower chamber, from outer pipe 10, post-decompression gas is introduced in upper cavity by low-voltage tube 13, more than before decompression, post-decompression two kinds of gases, the elastic force of the first spring 1 acts on primary diaphragm 2, before decompression, when there is particular pressure differential in decompression latter two gas, the elastic force of comprehensive first spring 1, make the elastic deformation amount that primary diaphragm 2 reaches stable, above elastic deformation amount is by first connecting rod 7, the transmission effect of ball sealer 71 and the second spring 8 is on spool 4, realize the adjustment of spool 4 aperture, reach the object of the structure pressure-reducing that the utility model provides, and the decrement that the adjustment of the outlet pressure that reduces pressure adjusts the first spring 1 by adjusting bolt 6 is realized.
In the present embodiment, second atmospheric pressure cavity 16 and secondary diaphragm 15 form another the secondary valve on valve body 9, be arranged on ball sealer 71 one end towards primary diaphragm 2 owing to adopting pressure pipe 14 entry end, like this, this secondary valve also only could realize its function after ball sealer 71 with the seal failure of ball recess.In this secondary valve arrangement, the guiding to spool 4 is not achieved by means of only second connecting rod 11, above structure is convenient to the secondary diaphragm 15 compression face size by arranging particular form simultaneously, when Pressure reducing ratio of the present utility model is larger, by the second atmospheric pressure cavity 16 pairs of lower chambers to the compensation of primary diaphragm 2 pressure, realize the rock gas air pressure of the utility model in range of regulation required by accurate output.In the present embodiment, be arranged on by spool 4 between two secondary valves, the active force of the second atmospheric pressure cavity 16 pairs of spools 4 offsets another secondary valve to the active force of spool 4.
In the present embodiment, the on off operating mode being realized high-voltage tube 3 by the ball sealer 71 arranged is regulated, be convenient to the adjustment of utility model works state: because ball sealer 71 and the first spring 1 are positioned at the not homonymy of primary diaphragm 2, so need by compressing the first spring 1, namely in upper cavity, screw in the mode of adjusting bolt 6, after ball sealer 71 and ball recess are departed from, just in lower chamber and upper cavity, post-decompression pressure medium before and after decompression can be injected respectively, therefore the utility model has the advantage that on off state is convenient to adjust; Simultaneously, the utility model does not adopt as structural types such as spiracle, pressure release escape orifices, therefore gas-tight, primary diaphragm 2 long-term disposal are totally in the course of the work, in the environment of not easily enrichment steam, namely the utility model also has long service life, can ensure the advantages such as decompression precision for a long time can to ensure the utility model.
Embodiment 2:
The present embodiment is further qualified on the basis of embodiment 1, as shown in Figure 1, for optimizing each action component stressing conditions in use in the utility model, i.e. each point stressed on even all parts cross section, avoid or reduce separately and valve body 9 occur rub and affect the life-span of the present utility model, produce unnecessary noise etc., described spool 4 forms stop valve current limliting form with inlet tube 5 and outer pipe 10 three, described primary diaphragm 2 is in circular, described first connecting rod 7 is in shaft-like, and spool 4, primary diaphragm 2, first spring 1, second spring 8, the axis collinear of second connecting rod 11 and first connecting rod 7 six.
Manufacture as a kind of being convenient to, being conducive to reducing the structural type of the utility model volume, described high-voltage tube 3 is a straight length, described first connecting rod 7 and ball sealer 71 is all or part of is arranged in high-voltage tube 3.
Affect working state of the present utility model or decompression parameter for ease of preventing the non-artificial rotation of adjusting bolt 6, described adjusting bolt 6 has also been threaded lock nut.
As the technological scheme that static seal under a kind of corrosion-resistant, low pressure is effective, described ball sealer 71 for material be the ball of fluorine rubber.
Above content is the further description done the utility model in conjunction with concrete preferred implementation, can not assert that embodiment of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, not departing from other mode of executions drawn under the technical solution of the utility model, all should be included in protection domain of the present utility model.
Claims (5)
1. one kind is beneficial to the natural gas pressure-reducing valve of pilot pressure output accuracy, comprise valve body (9), described valve body (9) is provided with inlet tube (5), outer pipe (10) and the first atmospheric pressure cavity (12), described inlet tube (5) is connected by spool (4) with outer pipe (10), primary diaphragm (2) is also provided with in described first atmospheric pressure cavity (12), first atmospheric pressure cavity (12) is divided into upper cavity and lower chamber by described primary diaphragm (2), and valve body (9) is also provided with high-voltage tube (3) and low-voltage tube (13), described high-voltage tube (3) realizes inlet tube (5) and is connected with the gas circuit of lower chamber, described low-voltage tube (13) realizes outer pipe (10) and is connected with the gas circuit of upper cavity, adjusting bolt that described valve body (9) has also been threaded (6), the threaded end of described adjusting bolt (6) stretches in upper cavity, and be also provided with the first spring (1) between described threaded end and primary diaphragm (2), spool arrestment mechanism is also provided with between described primary diaphragm (2) and spool (4), it is characterized in that, described spool arrestment mechanism comprises first connecting rod (7), ball sealer (71) and the second spring (8), one end of described first connecting rod (7) is fixed on primary diaphragm (2) and is arranged on the side of lower chamber, ball sealer (71) is fixed on the other end of first connecting rod (7), the two ends of the second spring (8) are individually fixed on ball sealer (71) and spool (4), and valve body (9) is also provided with the ball recess of fitting with ball sealer (71) sphere, described ball recess is a part for high-voltage tube (3), and ball sealer (71) is positioned between ball recess and high-voltage tube (3) entry end,
Described spool (4) is also connected with second connecting rod (11), described valve body (9) is also provided with the hole with second connecting rod (11) Spielpassung, described valve body (9) is also provided with the second atmospheric pressure cavity (16), the secondary diaphragm (15) be fixedly connected with second connecting rod (11) is provided with in described second atmospheric pressure cavity (16), described second atmospheric pressure cavity (16) be also provided with between high-voltage tube (3) be communicated with for source of the gas adopt pressure pipe (14), and the tie point adopting pressure pipe (14) and high-voltage tube (3) is positioned between ball recess and primary diaphragm (2), second connecting rod (11) is positioned between spool (4) and the second atmospheric pressure cavity (16),
The resiliently deformable direction of deformation direction, the first spring (1) and the second spring (8) when the opening and closing direction of described spool (4), primary diaphragm (2) pressurized, the axial direction of adjusting bolt (6), the axial direction of second connecting rod (11) are parallel to each other.
2. a kind of natural gas pressure-reducing valve being beneficial to pilot pressure output accuracy according to claim 1, it is characterized in that, described spool (4) forms stop valve current limliting form with inlet tube (5) and outer pipe (10) three, described primary diaphragm (2) is in circular, described first connecting rod (7) is in shaft-like, and the axis collinear of spool (4), primary diaphragm (2), the first spring (1), the second spring (8), second connecting rod (11) and first connecting rod (7) six.
3. a kind of natural gas pressure-reducing valve being beneficial to pilot pressure output accuracy according to claim 1, it is characterized in that, described high-voltage tube (3) is a straight length, described first connecting rod (7) and ball sealer (71) is all or part of is arranged in high-voltage tube (3).
4. a kind of natural gas pressure-reducing valve being beneficial to pilot pressure output accuracy according to claim 1, is characterized in that, described adjusting bolt (6) has also been threaded lock nut.
5. a kind of natural gas pressure-reducing valve being beneficial to pilot pressure output accuracy according to claim 1, is characterized in that, described ball sealer (71) for material be the ball of fluorine rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520613892.2U CN204922128U (en) | 2015-08-17 | 2015-08-17 | Do benefit to natural gas relief pressure valve of controlled pressure output precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520613892.2U CN204922128U (en) | 2015-08-17 | 2015-08-17 | Do benefit to natural gas relief pressure valve of controlled pressure output precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204922128U true CN204922128U (en) | 2015-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520613892.2U Expired - Fee Related CN204922128U (en) | 2015-08-17 | 2015-08-17 | Do benefit to natural gas relief pressure valve of controlled pressure output precision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204922128U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179768A (en) * | 2015-08-17 | 2015-12-23 | 成都国光电子仪表有限责任公司 | Natural gas pressure reducing valve beneficial to improving gas exhaust pressure control precision |
-
2015
- 2015-08-17 CN CN201520613892.2U patent/CN204922128U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179768A (en) * | 2015-08-17 | 2015-12-23 | 成都国光电子仪表有限责任公司 | Natural gas pressure reducing valve beneficial to improving gas exhaust pressure control precision |
| CN105179768B (en) * | 2015-08-17 | 2017-10-31 | 成都国光电子仪表有限责任公司 | A kind of natural gas pressure-reducing valve for being beneficial to improve outlet pressure control accuracy |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20160817 |
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| CF01 | Termination of patent right due to non-payment of annual fee |