CN204922129U - Natural gas pressure relief device - Google Patents

Natural gas pressure relief device Download PDF

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Publication number
CN204922129U
CN204922129U CN201520613906.0U CN201520613906U CN204922129U CN 204922129 U CN204922129 U CN 204922129U CN 201520613906 U CN201520613906 U CN 201520613906U CN 204922129 U CN204922129 U CN 204922129U
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CN
China
Prior art keywords
diaphragm
valve
spring
spool
rod
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 - Fee Related
Application number
CN201520613906.0U
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Chinese (zh)
Inventor
吕忠贵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Guoguang Electronic Instrument Co Ltd
Original Assignee
Chengdu Guoguang Electronic Instrument Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chengdu Guoguang Electronic Instrument Co Ltd filed Critical Chengdu Guoguang Electronic Instrument Co Ltd
Priority to CN201520613906.0U priority Critical patent/CN204922129U/en
Application granted granted Critical
Publication of CN204922129U publication Critical patent/CN204922129U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a natural gas pressure relief device, including the valve body, the import pipe, outlet pipe and atmospheric pressure chamber, the case, still be provided with the diaphragm in the atmospheric pressure chamber, the diaphragm is cut apart the atmospheric pressure chamber and is become to go up cavity and cavity down, and still is 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 diaphragm, still be provided with case arrestment mechanism between diaphragm and the case, case arrestment mechanism includes first connecting rod, ball sealer and second spring, still is provided with the ball grooves with the laminating of ball sealer sphere on the valve body. The utility model has the advantages of simple structure, the utility model discloses a state of opening is convenient for control, and 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.

Description

A kind of natural gas relief device
Technical field
The utility model relates to fluid-transferring pipe piece apparatus field, particularly relates to a kind of natural gas relief device.
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 diaphragm type, simultaneously, diaphragm type pressure-reducing valve, again with highly sensitive feature, is widely used in larger gas stove stokehold natural gas depressurization.The structure of further optimization diaphragm type pressure-reducing valve, is conducive to optimizing the utilization promoting rock gas further undoubtedly.
Model utility content
For above-mentioned diaphragm type pressure-reducing valve again with highly sensitive feature, be widely used in larger gas stove stokehold natural gas depressurization.The structure of further optimization diaphragm type pressure-reducing valve, be conducive to the problem optimizing the utilization promoting rock gas further undoubtedly, the utility model provides a kind of natural gas relief device.
For the problems referred to above, a kind of natural gas relief device that the utility model provides reaches model utility object by following technological points: a kind of natural gas relief device, comprise valve body, described valve body is provided with inlet tube, outer pipe and atmospheric pressure cavity, described inlet tube is connected by spool with outer pipe, also diaphragm is provided with in described atmospheric pressure cavity, atmospheric pressure cavity is divided into upper cavity and lower chamber by described 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 diaphragm, spool arrestment mechanism is also provided with between described 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 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,
The resiliently deformable direction of deformation direction, the first spring and the second spring when the opening and closing direction of described spool, diaphragm pressurized, the axial direction of adjusting bolt are parallel to each other.
Concrete, above atmospheric pressure cavity, the secondary valve of these reduction valve of Structure composing such as 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 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 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.
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 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, 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 diaphragm is circular, described first connecting rod is shaft-like, and the axis collinear of spool, diaphragm, the first spring, the second spring 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.
As a kind of structural type valve core movement direction to guide function, in vibrations process, excessive moment of flexure is produced to the second spring to avoid spool, described spool is also connected with second connecting rod, described valve body is also provided with the hole with second connecting rod Spielpassung.
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 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, 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.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of natural gas relief device described in the utility model specific embodiment.
Label shown in accompanying drawing is respectively: 1, the first spring, and 2, 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, atmospheric pressure cavity, 13, low-voltage tube.
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 relief device, comprise valve body 9, described valve body 9 is provided with inlet tube 5, outer pipe 10 and atmospheric pressure cavity 12, described inlet tube 5 is connected by spool 4 with outer pipe 10, diaphragm 2 is also provided with in described atmospheric pressure cavity 12, atmospheric pressure cavity 12 is divided into upper cavity and lower chamber by described 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 diaphragm 2, be also provided with the first spring 1, spool arrestment mechanism is also provided with between described 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 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,
Deformation direction when the opening and closing direction of described spool 4, diaphragm 2 pressurized, the first spring 1 and the resiliently deformable direction of the second spring 8, the axial direction of adjusting bolt 6 are parallel to each other.
Concrete, above atmospheric pressure cavity 12, the secondary valve of this reduction valve such as Structure composing such as 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 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 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, 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 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, 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 diaphragm 2 is in circular, described first connecting rod 7 is in shaft-like, and spool 4, diaphragm 2, first spring 1, the axis collinear of the second spring 8 and first connecting rod 7 five.
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.
Embodiment 3:
The present embodiment is further qualified on the basis of any one technological scheme disclosed in any one embodiment above, as a kind of structural type spool 4 moving direction to guide function, in vibrations process, excessive moment of flexure is produced to the second spring 8 to avoid spool 4, 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.
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 (6)

1. a natural gas relief device, comprise valve body (9), described valve body (9) is provided with inlet tube (5), outer pipe (10) and atmospheric pressure cavity (12), described inlet tube (5) is connected by spool (4) with outer pipe (10), diaphragm (2) is also provided with in described atmospheric pressure cavity (12), atmospheric pressure cavity (12) is divided into upper cavity and lower chamber by described 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 diaphragm (2), spool arrestment mechanism is also provided with between described 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 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,
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), diaphragm (2) pressurized, the axial direction of adjusting bolt (6) are parallel to each other.
2. a kind of natural gas relief device 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 diaphragm (2) is in circular, described first connecting rod (7) is in shaft-like, and the axis collinear of spool (4), diaphragm (2), the first spring (1), the second spring (8) and first connecting rod (7) five.
3. a kind of natural gas relief device according to claim 1, 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 relief device according to claim 1, is characterized in that, described adjusting bolt (6) has also been threaded lock nut.
5. a kind of natural gas relief device according to claim 1, is characterized in that, described ball sealer (71) for material be the ball of fluorine rubber.
6. a kind of natural gas relief device as claimed in any of claims 1 to 5, is characterized in that, 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.
CN201520613906.0U 2015-08-17 2015-08-17 Natural gas pressure relief device Expired - Fee Related CN204922129U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520613906.0U CN204922129U (en) 2015-08-17 2015-08-17 Natural gas pressure relief device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520613906.0U CN204922129U (en) 2015-08-17 2015-08-17 Natural gas pressure relief device

Publications (1)

Publication Number Publication Date
CN204922129U true CN204922129U (en) 2015-12-30

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Application Number Title Priority Date Filing Date
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Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105135018A (en) * 2015-08-17 2015-12-09 成都国光电子仪表有限责任公司 Pressure reducing valve for natural gas
CN108620494A (en) * 2018-05-04 2018-10-09 芜湖众梦电子科技有限公司 A kind of cooling device for automobile die

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105135018A (en) * 2015-08-17 2015-12-09 成都国光电子仪表有限责任公司 Pressure reducing valve for natural gas
CN105135018B (en) * 2015-08-17 2017-11-03 成都国光电子仪表有限责任公司 A kind of natural gas pressure-reducing valve
CN108620494A (en) * 2018-05-04 2018-10-09 芜湖众梦电子科技有限公司 A kind of cooling device for automobile die
CN108620494B (en) * 2018-05-04 2020-06-02 万德福科技(广东)有限公司 Cooling device for automobile mold

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151230

Termination date: 20160817