CN102620053A - Compressed natural gas two-stage pressure reducing device - Google Patents
Compressed natural gas two-stage pressure reducing device Download PDFInfo
- Publication number
- CN102620053A CN102620053A CN2012101099922A CN201210109992A CN102620053A CN 102620053 A CN102620053 A CN 102620053A CN 2012101099922 A CN2012101099922 A CN 2012101099922A CN 201210109992 A CN201210109992 A CN 201210109992A CN 102620053 A CN102620053 A CN 102620053A
- Authority
- CN
- China
- Prior art keywords
- heat absorption
- radiator
- air inlet
- lower cover
- anger
- 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.)
- Granted
Links
Images
Abstract
The invention discloses a compressed natural gas two-stage pressure reducing device. A primary high pressure cavity and a secondary high pressure cavity which are used for reducing pressure are arranged in a main body in the pressure reducing device, a piston assembly is matched with the primary high pressure cavity to form a primary pressure reducing mechanism, and a membrane assembly is matched with the secondary high pressure cavity to form a secondary pressure reducing mechanism. A gas inlet connector and a gas outlet connector are respectively arranged on the main body, and the gas inlet connector is communicated with the primary high pressure cavity. A lower cover is connected with the main body, a first circulating heat-absorbing structure is arranged in the lower cover, and the first circulating heat-absorbing structure is communicated with the primary high pressure cavity and the secondary high pressure cavity. The gas outlet connector is connected with a gas outlet pipe through a gas outlet radiator, and a second circulating heat-absorbing structure is arranged in the gas outlet radiator and communicated with the secondary high pressure cavity and the gas outlet pipe. The compressed natural gas two-stage pressure reducing device performs secondary pressure reduction to gas and further absorbs heat through a special radiating structure, thereby enabling the structure of the pressure reducing device to be compact, enlarging the radiating area of the radiator, enabling the radiating speed to be quick and enabling the efficiency to be high.
Description
Technical field
The present invention relates to a kind of decompressor, be specifically related to a kind of anti-freezing pressure reducing device that is used for compressed natural gas.
Background technique
To form compressed natural gas (Compressed Natural Gas through overcompression and supercharging in the natural gas transport process; Be called for short CNG); CNG is natural gas via filtration, the desulfurization in the defeated or gas well with pipe, dewater and be compressed to the 20MPa-25MPa storage of higher pressures; Need when the user uses earlier the pressurized gas that store to be decompressed to through reduction valve to use required low pressure, make that the gas output pressure that gets into the user side reduction valve is 0.3MPa-0.8MPa.High-pressure natural gas is in the gas decompression process, since the existence of pressure difference, the gas puffing; Need to absorb great amount of heat, cause the temperature of environment to descend, thereby be prone to cause gas pressure reducer to freeze; The decompressor cisco unity malfunction uses, and has a strong impact on the safety of pressure regulating equipment and decompression process.
To the problems referred to above, people provide multiple solution, and a kind of is the working method that adopts cascade, make pressure fall classification and reduce, and alleviate the influence of frosting to single-stage, and this is method comparatively commonly used.
Also having a kind of method is to be the disclosed method of utilizing water cycle to heat the compressed natural gas reduction valve of Chinese patent of CN 202178249 U like publication number.
Though two kinds of above-mentioned methods are all practical, the former equipment will be multiplied, and the latter has then increased the equipment control link, certainly will will increase administrative staff's workload and responsibility.They more or less exist defective.
Summary of the invention
The present invention is directed to the natural decompressor of existing compression existing problem aspect antifreeze, and a kind of novel compressed natural gas twin-stage decompressor is provided.This decompressor improves radiating effect greatly through special radiating structure, and delivery pressure is stable.
In order to achieve the above object, the present invention adopts following technological scheme:
A kind of compressed natural gas twin-stage decompressor; Said decompressor mainly comprises air inlet connecting head, parent, membrane combination, lower cover, air outlet adapter and steam outlet pipe; Said decompressor also comprises the piston in combination and the radiator of giving vent to anger; Be provided with the one-level hyperbaric chamber and the secondary hyperbaric chamber that are used for the twin-stage decompression in the said parent, said piston in combination matches with the one-level hyperbaric chamber and forms the one-level mechanism of decompressor, and said membrane combination matches with the secondary hyperbaric chamber and forms second depressurized mechanism; Said air inlet connecting head and air outlet adapter are separately positioned on the parent, and said air inlet connecting head is communicated with the one-level hyperbaric chamber; Said lower cover and parent join, and offer the first circulation heat-absorbing structure in it, and the said first circulation heat-absorbing structure is communicated with one-level hyperbaric chamber and secondary hyperbaric chamber; Said air outlet adapter joins through give vent to anger radiator and steam outlet pipe, offers the second circulation heat-absorbing structure in the said radiator of giving vent to anger, and the said second circulation heat-absorbing structure is communicated with secondary hyperbaric chamber and steam outlet pipe.
In preferred embodiment of the present invention, said parent is the brass material.
Said lower cover is an aluminum alloy material.
The outside of said lower cover is provided with some heat absorption teeth.
The said first circulation heat-absorbing structure comprises some air inlets heat absorption hole and exhaust heat absorption hole; Said some air inlet heat absorptions hole is offered to the bottom along lower cover from the top of lower cover; The inlet end in said air inlet heat absorption hole is positioned at the top of lower cover; And be communicated with the one-level hyperbaric chamber, the outlet side in said air inlet heat absorption hole is positioned at the lid of lower cover; Said exhaust heat absorption hole is offered to the bottom along lower cover from the top of lower cover; The inlet end in said exhaust heat absorption hole is positioned at the lid of lower cover and is communicated with the outlet side in all air inlet heat absorption holes; The outlet side in exhaust heat absorption hole is positioned at the top of lower cover, and is communicated with the secondary hyperbaric chamber.
Further, said some air inlets heat absorption hole is symmetrically distributed in around the exhaust heat absorption hole.
The outside of the said radiator of giving vent to anger is provided with some heat absorption teeth.
The said second circulation heat-absorbing structure comprises plurality of rows aspiration hot hole and air inlet heat absorption hole; Said air inlet heat absorption hole is offered to the bottom along the main body of the radiator of giving vent to anger from the top of the radiator of giving vent to anger; The inlet end in said air inlet heat absorption hole is positioned at the top of the radiator of giving vent to anger; And be communicated with the secondary hyperbaric chamber through air outlet adapter, the absorb heat outlet side in hole of said air inlet is positioned at the main body of the radiator of giving vent to anger; Said plurality of rows aspiration hot hole is offered to the bottom along the main body of the radiator of giving vent to anger from the top of the radiator of giving vent to anger; The inlet end of plurality of rows aspiration hot hole is positioned at the main body of the radiator of giving vent to anger; And be communicated with the outlet side in air inlet heat absorption hole; The outlet side of plurality of rows aspiration hot hole is positioned at the top of the radiator of giving vent to anger, and is communicated with steam outlet pipe.
Further, said plurality of rows aspiration hot hole is symmetrically distributed in around the air inlet heat absorption hole.
The present invention who obtains according to such scheme makes up the decompression part of gas pressure reducer with the mode of radiator portion with the best, can effectively avoid decompressor to freeze, and satisfies the use that high pressure CNG gas reduces pressure.
The present invention adopts piston in combination to carry out the decompression of one-level gas for guaranteeing the stable twin-stage pressure reduction structure that adopted of delivery pressure, and the post-decompression gas of one-level through special radiating structure, absorbs heat; And then carry out the secondary gas decompression of membrane combination, gas output is stable.Moreover corresponding radiation hole is arranged in lower cover and the set inside of radiator of giving vent to anger, and can increase the area of contact of gas and parent, thus the lift gas endothermic effect.Radiator and lower cover adopt the working method of deep trouth heat radiation, both can make the decompressor more compact structure, can increase the heat diffusion area of radiator again, make heat dissipation rate faster, and efficient is higher.
Description of drawings
Further specify the present invention below in conjunction with accompanying drawing and embodiment.
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of lower cover among the present invention;
Fig. 3 is the cross sectional representation of the radiator of giving vent to anger among the present invention.
Fig. 4 is the sectional view of Fig. 3 along A-A or B-B direction.
Fig. 5 is the sectional view of Fig. 3 along C-C or D-D direction.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with concrete diagram, further set forth the present invention.
Referring to Fig. 1, compressed natural gas twin-stage decompressor provided by the present invention mainly comprises air inlet connecting head 1, parent 2, lower cover 3, loam cake 7, air outlet adapter 4, give vent to anger radiator 5 and steam outlet pipe 6.
Air inlet connecting head 1 is used to connect source of the gas, and it is arranged on realizes on the parent 2 CNG is incorporated in the parent 2.
In parent 2, cause gas pressure reducer to freeze because the gas puffing absorbs great amount of heat, the present invention further improves parent 2 heat absorption capacities.At first, parent of the present invention 2 adopts high brasses under the prerequisite that helps the gas heat absorption, to guarantee the bearing strength of decompressor; Loam cake on it 7 adopts aluminum alloy to process simultaneously, helps the gas heat absorption like this, and is provided with some heat absorption teeth 71 in the outside of loam cake 7, and these heat absorption teeth 71 are even apart from distributing around loam cake 7 outer circumference directions, improve heat absorbing property.
Moreover; The present invention's parent 2 is provided with lower cover 3, and lower cover 3 uses aluminum alloy to help the gas heat absorption, is provided with some heat absorption teeth 32 simultaneously in the outside of lower cover 3; These heat absorption teeth 32 are even apart from distributing around lower cover 3 outer circumference directions; Improve heat absorbing property, the first circulation heat-absorbing structure 31 (as shown in Figure 2) is arranged, one-level hyperbaric chamber and secondary hyperbaric chamber that the first circulation heat-absorbing structure 31 is communicated with in the parents 2 in the set inside of lower cover 3; Make gas in the inner area of contact that increases of parent through this first circulation heat-absorbing structure 31, improve heat absorbing property.
Referring to Fig. 2; This first circulation heat-absorbing structure 31 comprises some air inlets heat absorption hole 310 and exhaust heat absorption hole 311; Some air inlet heat absorptions hole 310 is used for introducing through the post-decompression gas of one-level hyperbaric chamber; Its top from lower cover 3 (end links to each other with parent) is offered to the bottom along lower cover, and the inlet end in this air inlet heat absorption hole 310 is formed at the top (end links to each other with parent) of lower cover 3, and is communicated with the one-level hyperbaric chamber; And the outlet side in air inlet heat absorption hole is positioned at the lid of lower cover.
Wherein exhaust heat absorption hole 311 is offered to the bottom along lower cover from the top (end links to each other with parent) of lower cover 3; Making the inlet end in exhaust heat absorption hole be formed in the lid of lower cover and with the outlet side in all air inlets heat absorption holes is communicated with; The outlet side in exhaust heat absorption hole is formed at the top of lower cover; And be communicated with the secondary hyperbaric chamber, advance the circulation heat-absorbing structure that a hole goes out thereby form a porous.
Can know by Fig. 2; Adopt three air inlet heat absorption holes 310 and exhaust heat absorption hole 311 its concrete numbers to be not limited to this in the present invention; Can decide according to actual conditions); Exhaust heat absorption hole 311 is arranged on the intermediate portion of lower cover, and three air inlet heat absorption holes 310 be evenly distributed on exhaust heat absorption hole 311 around.
In order further to improve the heat absorption efficiency of gas in the air inlet heat absorption hole; The invention enables air inlet heat absorption hole 310 on bearing of trend simultaneously to intermediate, inclined; Make the axis in air inlet heat absorption hole 310 and the axis of lower cover 3 be 5 °-7 ° angle setting, specifically can be 6 °; Make that simultaneously the aperture in air inlet heat absorption hole 310 is big as far as possible, increase gas and area of contact lower cover 3 like this.
The first above-mentioned circulation heat-absorbing structure 31 will be split into multiply through the gas of once decompression through a plurality of air inlet heat absorptions hole 310; Enter into lower cover through corresponding air inlet heat absorption hole 310 respectively; Gas can both carry out sufficient exchange heat with lower cover in each air inlet heat absorption hole 310; Effectively increase the area of contact of gas and parent, improved the performance of parent heat exchange greatly, effectively solved gas need absorb a large amount of heats at puffing problem.Gas after fully absorbing heat through each air inlet heat absorption hole 310 enters into the secondary hyperbaric chamber through exhaust heat absorption hole 311 discharge lower covers again and carries out second depressurized.
In order to solve the problem of gas at a large amount of heats of second depressurized expansion need absorption, the present invention is provided with air outlet adapter 4 on parent 2, and connects the radiator 5 of giving vent to anger by air outlet adapter 4.
The radiator 5 of giving vent to anger is realized the gas that second depressurized expands is carried out heat exchange, avoids its a large amount of heat absorptions to cause gas pressure reducer to freeze.
Referring to Fig. 3, give vent to anger radiator 5 of the present invention adopts the material of being convenient to heat exchange to process, and its external structure adopts the dentation structure of being convenient to heat exchange.Radiator 5 outsides of giving vent to anger are provided with some heat absorption teeth 51, and it is even apart from distributing that these heat absorption teeth 51 lay out gas radiator 5 outer circumference directions, improves heat absorbing property.Set inside at the radiator 5 of giving vent to anger has the second circulation heat-absorbing structure 52 simultaneously.
This second circulation heat-absorbing structure 52 improves the performance of radiator and its internal gas heat exchange greatly through increasing the area of contact of the gas and the radiator of giving vent to anger.
The second circulation heat-absorbing structure 52 among the present invention mainly comprises plurality of rows aspiration hot hole 520 and air inlet heat absorption hole 521 for this reason.Air inlet heat absorption hole 521 is offered to the bottom along the main body of the radiator of giving vent to anger from the top (end links to each other with air outlet adapter 4) of the radiator 52 of giving vent to anger; Make the inlet end in air inlet heat absorption hole 521 be formed at the top of the radiator of giving vent to anger, and be communicated with the secondary hyperbaric chamber through air outlet adapter 4; Make the outlet side in air inlet heat absorption hole 521 be positioned at the main body of the radiator 5 of giving vent to anger simultaneously.
Plurality of rows aspiration hot hole 520 tops from the radiator of giving vent to anger (end links to each other with air outlet adapter 4) are offered to the bottom along the main body of the radiator of giving vent to anger; Make the inlet end of plurality of rows aspiration hot hole be positioned at the main body of the radiator of giving vent to anger; And be communicated with the outlet side in air inlet heat absorption hole; The outlet side in all exhaust heat absorption holes is positioned at the top of the radiator of giving vent to anger simultaneously, and is communicated with steam outlet pipe 6, thereby the circulation heat-absorbing structure that porous goes out is advanced in one one hole.
Can know by Fig. 3; (its concrete number is not limited to this to adopt 8 exhaust heat absorption holes 520 (being followed successively by 5201,5202,5203,5204,5205,5206,5027,5208 respectively) and an air inlet heat absorption hole 521 in the present invention; Can decide according to actual conditions); Air inlet heat absorption hole 521 is arranged on the intermediate portion of the radiator 5 of giving vent to anger, and 8 exhaust heat absorption holes 520 be evenly distributed on air inlet heat absorption hole 521 around, the heat absorption of exhaust according to actual needs hole 520 also can uneven distribution.
In order further to improve the heat absorption efficiency of gas in the exhaust heat absorption hole 520; 8 exhaust heat absorption holes 520 among the present invention simultaneously to intermediate, inclined, i.e. have certain crossing angle between the axis in exhaust heat absorption hole and the axis of radiator 5 main bodys of giving vent to anger on bearing of trend.
According to the demand of reality, the angle of inclination in 8 exhaust heat absorption holes 520 can be different.As shown in Figure 4; It is depicted as two couples of exhausts heat absorption hole 5203-5207, the 5201-5205 that relates separately in A-A direction and B-B direction; These two pairs of exhaust heat absorption holes adopt identical angle of inclination to be provided with, and the axis angle in two exhausts heat absorption hole is 20 ° in every pair of concrete exhaust heat absorption hole.
As shown in Figure 5; It is depicted as two couples of exhausts heat absorption hole 5204-5208, the 5206-5202 that relates separately in C-C direction and D-D direction; These two pairs of exhaust heat absorption holes adopt identical angle of inclination to be provided with, and the axis angle in two exhausts heat absorption hole is 10 ° in every pair of concrete exhaust heat absorption hole.
Because two couples of exhausts heat absorption hole 5204-5208,5206-5202 that C-C direction and D-D direction relate to lay respectively between two couples of exhausts heat absorption hole 5203-5207 that A-A direction and B-B direction relate to, the 5201-5205; Therefore; In the present invention; 8 exhausts heat absorption hole 5201,5202,5203,5204,5205,5206,5027, staggered successively to intermediate, inclined on bearing of trend between 5208; Effectively avoid exhaust heat absorption hole undue concentration to influence the problem of gas heat absorption capacity in it, thereby reach the purpose that improves gas heat absorption efficiency in the exhaust heat absorption hole 520.
Make in the present invention that simultaneously the aperture in exhaust heat absorption hole 520 is big as far as possible, increase gas and area of contact gas radiator 5 main bodys like this.
The gas that the second above-mentioned circulation heat-absorbing structure 52 will be passed through the secondary step-down through an air inlet heat absorption hole 521 is introduced the second circulation heat-absorbing structure, 52 inside; By a plurality of exhaust heat absorptions hole 520 this gas is split into multiply again; In each exhaust heat absorption hole; Gas can both fully contact with the radiator 5 of giving vent to anger, and carries out sufficient heat exchange, has effectively increased the area of contact of gas with the radiator 5 of giving vent to anger; Make gas can absorb great amount of heat timely, effectively solve gas need absorb a large amount of heats at the secondary puffing problem.Gas after fully absorbing heat is discharged through a plurality of exhausts heat absorptions hole 520 simultaneously, and enters into steam outlet pipe 6, thereby can effectively guarantee the flow of gas, does not influence follow-up use.
The present invention uses aluminum alloy to help the gas heat absorption at reduction valve loam cake and bottom material; Parent adopts high brass under the prerequisite that helps the gas heat absorption, to guarantee the bearing strength of decompressor; The inner special construction that adopts of parent makes gas in the inner area of contact that increases of parent simultaneously, improves heat absorbing property.Decompressor adopts the twin-stage decompression to guarantee the stable of delivery pressure.The radiator of giving vent to anger that is connected to special construction at the output terminal of decompressor heats post-decompression gas once more.
According to the compressed natural gas twin-stage decompressor that such scheme forms, its using process is summarized as follows:
At first gas connecting head 1 is connected with source of the gas; Opening source of the gas makes gas get in parent 2 mesohigh chambeies and the lower cover 3 through gas connecting head 1; Gas fully absorbs heat through the first circulation heat-absorbing structure 31 in the part lower cover 3 after the one-level decompression, and the secondary hyperbaric chamber in the entering parent 2 is through decompression once more; Arrive the radiator 5 of giving vent to anger through air outlet adapter 4; In the radiator 5 of giving vent to anger,, and in the second circulation heat-absorbing structure 52, after the abundant heat absorption of amplitude peak, finally get into steam outlet pipe 6 and discharge through the second circulation heat-absorbing structure 52.
More than show and described basic principle of the present invention, major character and advantage of the present invention.The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (9)
1. compressed natural gas twin-stage decompressor; Said decompressor mainly comprises air inlet connecting head, parent, membrane combination, lower cover, air outlet adapter and steam outlet pipe; It is characterized in that said decompressor also comprises the piston in combination and the radiator of giving vent to anger, be provided with the one-level hyperbaric chamber and the secondary hyperbaric chamber that are used for the twin-stage decompression in the said parent; Said piston in combination matches with the one-level hyperbaric chamber and forms the one-level mechanism of decompressor, and said membrane combination matches with the secondary hyperbaric chamber and forms second depressurized mechanism; Said air inlet connecting head and air outlet adapter are separately positioned on the parent, and said air inlet connecting head is communicated with the one-level hyperbaric chamber; Said lower cover and parent join, and offer the first circulation heat-absorbing structure in it, and the said first circulation heat-absorbing structure is communicated with one-level hyperbaric chamber and secondary hyperbaric chamber; Said air outlet adapter joins through give vent to anger radiator and steam outlet pipe, offers the second circulation heat-absorbing structure in the said radiator of giving vent to anger, and the said second circulation heat-absorbing structure is communicated with secondary hyperbaric chamber and steam outlet pipe.
2. a kind of compressed natural gas twin-stage decompressor according to claim 1 is characterized in that said parent is the brass material.
3. a kind of compressed natural gas twin-stage decompressor according to claim 1 is characterized in that said lower cover is an aluminum alloy material.
4. according to claim 1 or 3 described a kind of compressed natural gas twin-stage decompressors, it is characterized in that the outside of said lower cover is provided with some heat absorption teeth.
5. a kind of compressed natural gas twin-stage decompressor according to claim 1; It is characterized in that; The said first circulation heat-absorbing structure comprises some air inlets heat absorption hole and exhaust heat absorption hole, and said some air inlet heat absorptions hole is offered to the bottom along lower cover from the top of lower cover, and the inlet end in said air inlet heat absorption hole is positioned at the top of lower cover; And be communicated with the one-level hyperbaric chamber, the outlet side in said air inlet heat absorption hole is positioned at the lid of lower cover; Said exhaust heat absorption hole is offered to the bottom along lower cover from the top of lower cover; The inlet end in said exhaust heat absorption hole is positioned at the lid of lower cover and is communicated with the outlet side in all air inlet heat absorption holes; The outlet side in exhaust heat absorption hole is positioned at the top of lower cover, and is communicated with the secondary hyperbaric chamber.
6. a kind of compressed natural gas twin-stage decompressor according to claim 5 is characterized in that, said some air inlet heat absorptions hole is symmetrically distributed in around the exhaust heat absorption hole.
7. a kind of compressed natural gas twin-stage decompressor according to claim 1 is characterized in that the outside of the said radiator of giving vent to anger is provided with some heat absorption teeth.
8. a kind of compressed natural gas twin-stage decompressor according to claim 1; It is characterized in that; The said second circulation heat-absorbing structure comprises plurality of rows aspiration hot hole and air inlet heat absorption hole, and said air inlet heat absorption hole is offered to the bottom along the main body of the radiator of giving vent to anger from the top of the radiator of giving vent to anger, and the inlet end in said air inlet heat absorption hole is positioned at the top of the radiator of giving vent to anger; And be communicated with the secondary hyperbaric chamber through air outlet adapter, the absorb heat outlet side in hole of said air inlet is positioned at the main body of the radiator of giving vent to anger; Said plurality of rows aspiration hot hole is offered to the bottom along the main body of the radiator of giving vent to anger from the top of the radiator of giving vent to anger; The inlet end of plurality of rows aspiration hot hole is positioned at the main body of the radiator of giving vent to anger; And be communicated with the outlet side in air inlet heat absorption hole; The outlet side of plurality of rows aspiration hot hole is positioned at the top of the radiator of giving vent to anger, and is communicated with steam outlet pipe.
9. a kind of compressed natural gas twin-stage decompressor according to claim 8 is characterized in that, said plurality of rows aspiration hot hole is symmetrically distributed in around the air inlet heat absorption hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210109992 CN102620053B (en) | 2012-04-14 | 2012-04-14 | Compressed natural gas two-stage pressure reducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210109992 CN102620053B (en) | 2012-04-14 | 2012-04-14 | Compressed natural gas two-stage pressure reducing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102620053A true CN102620053A (en) | 2012-08-01 |
| CN102620053B CN102620053B (en) | 2013-09-04 |
Family
ID=46560169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210109992 Active CN102620053B (en) | 2012-04-14 | 2012-04-14 | Compressed natural gas two-stage pressure reducing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102620053B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286922A (en) * | 2016-10-27 | 2017-01-04 | 泸州江阳超能燃气有限责任公司 | A kind of decompressor for compressed natural gas pressure-reducing gas |
| CN109602963A (en) * | 2018-12-29 | 2019-04-12 | 捷锐企业(上海)有限公司 | Oxygen uptake and vacuum suction integration module |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2125762U (en) * | 1992-05-30 | 1992-12-23 | 天津市减压器厂 | Two-stage pressure reducer for air pipe line |
| JP2007218565A (en) * | 2006-02-20 | 2007-08-30 | Daikin Ind Ltd | Freezer |
| CN200946756Y (en) * | 2006-09-19 | 2007-09-12 | 捷锐企业(上海)有限公司 | Decompression structure of gas decompressor |
| CN201159317Y (en) * | 2008-02-26 | 2008-12-03 | 戴小华 | Insertion type compressed natural gas two-stage pressure reducing valve |
| CN101354592A (en) * | 2008-07-17 | 2009-01-28 | 朱成伟 | Gas pressure reducer |
| CN102116412A (en) * | 2009-12-30 | 2011-07-06 | 林建州 | Dual-stage gas decompressor |
-
2012
- 2012-04-14 CN CN 201210109992 patent/CN102620053B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2125762U (en) * | 1992-05-30 | 1992-12-23 | 天津市减压器厂 | Two-stage pressure reducer for air pipe line |
| JP2007218565A (en) * | 2006-02-20 | 2007-08-30 | Daikin Ind Ltd | Freezer |
| CN200946756Y (en) * | 2006-09-19 | 2007-09-12 | 捷锐企业(上海)有限公司 | Decompression structure of gas decompressor |
| CN201159317Y (en) * | 2008-02-26 | 2008-12-03 | 戴小华 | Insertion type compressed natural gas two-stage pressure reducing valve |
| CN101354592A (en) * | 2008-07-17 | 2009-01-28 | 朱成伟 | Gas pressure reducer |
| CN102116412A (en) * | 2009-12-30 | 2011-07-06 | 林建州 | Dual-stage gas decompressor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286922A (en) * | 2016-10-27 | 2017-01-04 | 泸州江阳超能燃气有限责任公司 | A kind of decompressor for compressed natural gas pressure-reducing gas |
| CN106286922B (en) * | 2016-10-27 | 2018-08-17 | 泸州江阳超能燃气有限责任公司 | A kind of pressure reducer for compressed natural gas pressure-reducing gas |
| CN109602963A (en) * | 2018-12-29 | 2019-04-12 | 捷锐企业(上海)有限公司 | Oxygen uptake and vacuum suction integration module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102620053B (en) | 2013-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102620053B (en) | Compressed natural gas two-stage pressure reducing device | |
| US10221836B2 (en) | Combined power generation system based on geothermal energy and solar energy and power generation method thereof | |
| CN101688694B (en) | Device for producing heat by passing a fluid at pressure through a plurality of tubes, and thermodynamic system employing such a device | |
| CN110397589A (en) | Two-stage screw compressor and air-conditioner set with balancing axial thrust function | |
| CN202630528U (en) | Efficient heat regeneration device | |
| CN110762869A (en) | Gas compression type heat pump | |
| CN103106932A (en) | Flow-concentrating type two-flow super-critical water-cooled reactor | |
| CN102679637A (en) | Etched metal sheet axial-filling type heat regenerator and assembling method of axial filling type heat regenerator | |
| CN102720599B (en) | External heating machine and working method thereof | |
| CN205330748U (en) | Utilize high -efficient heating power circulation system of vortex tube | |
| CN107449309B (en) | Honeycomb type gas cooler for carbon dioxide heat pump | |
| CN106870376B (en) | A kind of horizontal enthalpy-increasing compressor | |
| CN206625980U (en) | A kind of horizontal enthalpy-increasing compressor | |
| CN206129550U (en) | Join in marriage a class mechanism suitable for multistage air compressor | |
| CN201991773U (en) | Dual-rotor compressor and heat pump system utilizing same | |
| CN107165803A (en) | A kind of air compression assembly assembling structure on air compressor machine | |
| CN218120690U (en) | High-efficient recovery comprehensive utilization device of carbon dioxide gas | |
| CN203629155U (en) | Intermediate cooler of two-stage heat pump | |
| CN203079687U (en) | Condensed and water removal integrated box-type concentrated spatial oxygen supply equipment | |
| CN211370686U (en) | Hydrogen compression supercharging device | |
| CN110118167A (en) | A kind of V-arrangement booster-type high pressure air compressor with the double air-cooled structures of water wing | |
| CN203395582U (en) | H-shaped safety device for station cylinder group | |
| CN211502017U (en) | High-efficiency silencer | |
| CN202581507U (en) | Air source and water source heating system with heat regenerator | |
| CN209934425U (en) | Exhaust recovery and transformation device of suction dryer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |