CN201339816Y - Double-stage pressure reducer - Google Patents
Double-stage pressure reducer Download PDFInfo
- Publication number
- CN201339816Y CN201339816Y CNU2008201710205U CN200820171020U CN201339816Y CN 201339816 Y CN201339816 Y CN 201339816Y CN U2008201710205 U CNU2008201710205 U CN U2008201710205U CN 200820171020 U CN200820171020 U CN 200820171020U CN 201339816 Y CN201339816 Y CN 201339816Y
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- China
- Prior art keywords
- air chamber
- valve
- level
- stage
- elastic film
- 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
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- 239000003638 chemical reducing agent Substances 0.000 title abstract 4
- 230000006837 decompression Effects 0.000 claims description 27
- 230000033228 biological regulation Effects 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 4
- 239000012528 membrane Substances 0.000 abstract 3
- 230000001276 controlling effect Effects 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 230000003827 upregulation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Safety Valves (AREA)
Abstract
The utility model discloses a double-stage pressure reducer, which comprises a valve body (1), an upper cover (2), a lower cover (3), a first-stage valve (4) and a second-stage valve (5). The valve body (1) is connected with the lower cover (3) to form a first-stage pressure reduction chamber (6) and the valve body (1) is connected with the upper cover (2) to form a second-stage pressure reduction chamber (7). The first-stage valve (4) is arranged at a gas inlet of the first-stage pressure reduction chamber(6) which is communicated with the second-stage pressure reduction chamber (7) through the second-stage valve (5), and an elastic membrane device is arranged in the first-stage pressure reduction chamber (6). The double-stage pressure reducer is characterized in that an adjusting device is arranged at one end of the elastic membrane device. The double-stage pressure reducer can adjust the elastic membrane device in the first-stage pressure reduction chamber and ensures the pressure of the gas at the outlet.
Description
Technical field
The utility model relates to the high-pressure gas pipeline decompressor, specifically is a kind of twin-stage decompressor.
Background technique
Because the gas cylinder internal pressure is higher, and the required pressure of gas welding and gas cutting and use point is less, so need come the gas that is stored in the elevated pressures in the gas cylinder is reduced to low-pressure gas with decompressor, and should guarantee that required working pressure keeps steady state from start to finish.Decompressor is that pressurized gas are reduced to low-pressure gas, and kept the pressure and the constant controlling device of stability of flow of output gas.At present, National IP Network discloses one and has authorized the model utility of publication number for " CN2305530Y ", its name is called " twin-stage decompression integrated gas decompressor ", is a kind of twin-stage decompressor, and its general configuration comprises valve body, loam cake, lower cover, one-level valve, secondary valve; Described valve body and lower cover are connected to form one-level decompression air chamber, described valve body and loam cake are connected to form the second depressurized air chamber, described one-level valve is located at the suction port of one-level decompression air chamber, described one-level decompression air chamber is communicated with the second depressurized air chamber by the secondary valve, described one, be provided with the elastic film device in the second depressurized air chamber, the elastic film device of described second depressurized air chamber is located at the upper end of valve body, the elastic film device of described one-level decompression air chamber is located at the centre of valve body, pressurized gas are through reaching the pressure stable gas of job requirements behind the decompressor of this structure like this, but the twin-stage decompressor of above structure also has following not enough: be mounted in the cavity of second depressurized air chamber owing to push the spring of the valve of one-level decompression air chamber, so can not regulate to the reduce pressure elastic film device of air chamber of one-level, can only be by regulating the elastic film device of second depressurized air chamber, adjust the atmospheric pressure that of whole reduction valve with this, the one-level decompression does not reach decompression after causing long-term the use like this, the second depressurized load is increased, and may cause the twin-stage decompressor pressure transient of giving vent to anger.
The model utility content
The technical problems to be solved in the utility model is that a kind of twin-stage decompressor that can regulate the elastic film device of one-level decompression air chamber and guarantee exit gas pressure is provided.
The technical solution of the utility model is, provide a kind of have a following structure comprise valve body, loam cake, lower cover, one-level valve, secondary valve; Described valve body and lower cover are connected to form one-level decompression air chamber, described valve body and loam cake are connected to form the second depressurized air chamber, described one-level valve is located at the suction port of one-level decompression air chamber, described one-level decompression air chamber is communicated with the second depressurized air chamber by the secondary valve, be provided with the elastic film device in the described one-level decompression air chamber, an end of described elastic film device is provided with controlling device.
After adopting above structure, the utility model compared with prior art has the following advantages: an end of the elastic film device in the described one-level decompression air chamber is provided with controlling device, can regulate the elastic film device.On the one hand, to satisfy user's needs pressure and flow size different are carried out self-control (can use after needing to measure the pressure that limits and flow after the adjusting); On the other hand, cooperate with the one-level valve, the one-level decompression of twin-stage decompressor is regulated, make one-level decompression and second depressurized reach best fit, guarantee the exit gas pressure stability of twin-stage decompressor by the elastic film device.
Description of drawings
Accompanying drawing is the structural representation of twin-stage decompressor of the present utility model.
As shown in the figure: 1, valve body, 2, loam cake, 3, lower cover, 4, one-level valve, 5, secondary valve, 6, one-level decompression gas, 7, the second depressurized air chamber, 8, screw, 9, packing ring, 10, screw, 11, diaphragm, 12, nut, 13, Regulation spring, 14, the spring plug, 15, the spring cushion block.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in the figure, twin-stage decompressor of the present utility model comprises valve body 1, loam cake 2, lower cover 3, one-level valve 4, secondary valve 5; Described valve body 1 is threaded with lower cover 3 and forms one-level decompression air chamber 6, described valve body 1 is threaded with loam cake 2 and forms second depressurized air chamber 7, described one-level valve 4 is located at the suction port of one-level decompression air chamber 6, described one-level decompression air chamber 6 is communicated with second depressurized air chamber 7 by secondary valve 5, be provided with the elastic film device in the described one-level decompression air chamber 6, an end of described elastic film device is provided with controlling device.Described one-level valve 4, secondary valve 5, elastic film device are prior art.
Described elastic film device comprises packing ring 9, screw 10, diaphragm 11, nut 12, Regulation spring 13, spring plug 14, spring cushion block 15, described diaphragm 11 exterior edge faces are installed in the one-level decompression air chamber 6 by packing ring 9, the center hole of its diaphragm 11 cooperates with screw 10 by nut 12 and is positioned in the one-level decompression air chamber 6, described Regulation spring 13 is enclosed within on the spring plug 14, its upper end offsets with screw 10, and its lower end and compression spring 15 offset.
Described controlling device is a screw 8, one end of described elastic film device is provided with controlling device and is meant that described screw 8 is located at an end of spring cushion block 15 and is threaded with lower cover 3, during adjusting by turning screw 8, screw 8 pushes spring cushion block 15 and props up Regulation spring 13, decrement by Regulation spring 13 is regulated the one-level reduced pressure capabilities, its working principle is the Principles of Regulation of the second depressurized of prior art, so do not give unnecessary details at this.
Claims (3)
1, a kind of twin-stage decompressor comprises valve body (1), loam cake (2), lower cover (3), one-level valve (4), secondary valve (5); Described valve body (1) is connected to form one-level decompression air chamber (6) with lower cover (3), described valve body (1) is connected to form second depressurized air chamber (7) with loam cake (2), described one-level valve (4) is located at the suction port of one-level decompression air chamber (6), described one-level decompression air chamber (6) is communicated with second depressurized air chamber (7) by secondary valve (5), be provided with the elastic film device in the described one-level decompression air chamber (6), it is characterized in that: an end of described elastic film device is provided with controlling device.
2, twin-stage decompressor according to claim 1 is characterized in that: described elastic film device comprises packing ring (9), screw (10), diaphragm (11), nut (12), Regulation spring (13), spring plug (14), spring cushion block (15).
3, twin-stage decompressor according to claim 1 and 2, it is characterized in that: described controlling device is a screw (8), and an end of described elastic film device is provided with controlling device and is meant that described screw (8) is located at an end of spring cushion block (15) and is threaded with lower cover (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201710205U CN201339816Y (en) | 2008-12-18 | 2008-12-18 | Double-stage pressure reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201710205U CN201339816Y (en) | 2008-12-18 | 2008-12-18 | Double-stage pressure reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201339816Y true CN201339816Y (en) | 2009-11-04 |
Family
ID=41235362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201710205U Expired - Fee Related CN201339816Y (en) | 2008-12-18 | 2008-12-18 | Double-stage pressure reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201339816Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758943A (en) * | 2012-06-27 | 2012-10-31 | 钱立民 | Two-stage type gas pressure regulator |
| CN102116411B (en) * | 2009-12-30 | 2014-02-26 | 林建州 | Gas decompressor |
| CN102116412B (en) * | 2009-12-30 | 2014-02-26 | 林建州 | Dual-stage gas decompressor |
| CN104405939A (en) * | 2014-11-14 | 2015-03-11 | 宁波隆兴焊割科技股份有限公司 | Three-stage pressure reducer |
| CN105065768A (en) * | 2015-07-20 | 2015-11-18 | 南京伟易达机电科技发展有限公司 | Pressure regulator for pressure regulation of outlet of gas pressure regulating valve |
| CN105757452A (en) * | 2016-05-16 | 2016-07-13 | 崔贤长 | Intelligent two-stage pressure reducer |
| CN107131334A (en) * | 2017-05-26 | 2017-09-05 | 张家港市鸿嘉数字科技有限公司 | A kind of effective carbon-dioxide pressure reducer |
-
2008
- 2008-12-18 CN CNU2008201710205U patent/CN201339816Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116411B (en) * | 2009-12-30 | 2014-02-26 | 林建州 | Gas decompressor |
| CN102116412B (en) * | 2009-12-30 | 2014-02-26 | 林建州 | Dual-stage gas decompressor |
| CN102758943A (en) * | 2012-06-27 | 2012-10-31 | 钱立民 | Two-stage type gas pressure regulator |
| CN104405939A (en) * | 2014-11-14 | 2015-03-11 | 宁波隆兴焊割科技股份有限公司 | Three-stage pressure reducer |
| CN104405939B (en) * | 2014-11-14 | 2017-09-29 | 宁波隆兴焊割科技股份有限公司 | A kind of three-level pressure reducer |
| CN105065768A (en) * | 2015-07-20 | 2015-11-18 | 南京伟易达机电科技发展有限公司 | Pressure regulator for pressure regulation of outlet of gas pressure regulating valve |
| CN105065768B (en) * | 2015-07-20 | 2018-08-24 | 南京伟易达机电科技发展有限公司 | Applied to the pressure controlled pressure regulator of gas pressure regulating valve upper outlet |
| CN105757452A (en) * | 2016-05-16 | 2016-07-13 | 崔贤长 | Intelligent two-stage pressure reducer |
| CN107131334A (en) * | 2017-05-26 | 2017-09-05 | 张家港市鸿嘉数字科技有限公司 | A kind of effective carbon-dioxide pressure reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091104 Termination date: 20131218 |