CN203082301U - Gas pressure reducer for mass flow - Google Patents
Gas pressure reducer for mass flow Download PDFInfo
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- CN203082301U CN203082301U CN 201220698561 CN201220698561U CN203082301U CN 203082301 U CN203082301 U CN 203082301U CN 201220698561 CN201220698561 CN 201220698561 CN 201220698561 U CN201220698561 U CN 201220698561U CN 203082301 U CN203082301 U CN 203082301U
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- pressure
- decompressor
- spool
- gas
- spring
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Abstract
The utility model relates to a gas pressure reducer for mass flow. The gas pressure reducer for the mass flow mainly comprises a pressure reducer valve body, a valve body cover, a valve core, a gas membrane assembly, a regulating assembly, a pressure regulating assembly, a connecting assembly, a pressure gauge and the like. According to the gas pressure reducer for the mass flow, the pressure of a regulating spring is changed by regulating rotation of a screw rod, so that the size of an opening clearance of a regulating mechanism is driven to change, the pressure at an inlet position is reduced and regulated to a needed outlet pressure value, the aperture of the valve core is controlled through a feedback action of the outlet pressure, and the stability of the outlet pressure is maintained. The movement of the regulating mechanism is directly related to the outlet pressure, once the outlet pressure is changed, the valve core can move with the outlet pressure to achieve a function of stabilizing the pressure of the pressure reducer. The gas pressure reducer for the mass flow has the advantages of being simple in structure, accurate in regulation, long in service life, small in size and capable of guaranteeing output of mass flow gas. Working condition requirements of special working conditions for small size, large output pressure and mass flow are completely met.
Description
Technical field
The utility model relates to that a kind of to be mainly used in the big-flow high-pressure gas reforming be low-pressure gas, and the decompression stable-pressure device of stable output, belongs to a kind of big flow special gas decompressor.
Background technique
Gas pressure by pipeline supply is higher, and reality uses required pressure less relatively, need reduce to low-pressure gas to pressurized gas with decompressor, satisfies the needs that big flow gas uses, and keeps required working pressure to stablize.
Existing decompressor can only satisfy the need of work in general work place.The decompressor volume that is used for bottled pressurized gas is little, simple in structure, but can not satisfy delivery pressure and the big operating conditions requirement of flow.And satisfying the decompressor complex structure that the big operating conditions of delivery pressure and flow requires, volume is big, does not satisfy the operating mode of wanting cube little again.
The working principle of gas pressure reducer is, when gas was exported, gas pressure reduced in the low-pressure cavity, and pressurized gas enter low-pressure cavity by valvate stricture, thereby guarantees that gas continues output with the working pressure of needs.Rotation hand lever compression adjustment spring, the pressure and the flow of promotion push rod, spool adjustment output gas.
The model utility content
The purpose of this utility model is to provide a kind of big flow special gas decompressor, and it has characteristics such as simple in structure, that adjusting is accurate, the life-span is long, volume is little, and can guarantee big flow gas output.
For achieving the above object, the utility model adopts following design proposal:
A kind of big flow special gas decompressor is characterized in that it includes decompressor valve body 8, body cap 20, spool 13, air film assembly 18, adjusting part 1, pressure regulation assembly 16, connection part 15, pressure gauge 10;
Be provided with hyperbaric chamber 81, low pressure chamber 83 in the described decompressor valve body 8, link to each other by circular groove or duct 82;
Described air film assembly 18 comprises: air film seat 7, air film 6, spring seat 5, packing ring 4, nut 19; Air film 6, spring seat 5 are fixed on the air film seat 7 by nut 19, and packing ring 4 is pressed on the air film 6;
Described adjusting part 1 comprises regulating handle 22, adjusting screw rod 21, Regulation spring 3, regulates spring pad 2; Described adjusting screw rod 21 outer end vertical axis directions have through hole and embed regulating handle 22, and inner end is inlayed steel ball 101, join with adjusting spring pad 2, regulate spring pad 2 and are embedded in Regulation spring 3 underparts; Rotation regulating handle 22, adjusting screw rod 21 end steel balls are by regulating spring pad 2 and evenly compress or loosening Regulation spring 3;
Described pressure regulation assembly 16 comprises tip-lever support 17, push rod 14, tetrafluoro packing ring 9, spool 13, pressure-bearing spring 12, valve core case 11; Described tip-lever support 17 centers are push rod chambeies 171, are processed with several low-pressure gas ducts 172 outside the push rod chamber and are connected with the low pressure chamber 83 of decompressor, and tip-lever support 17 upper ends are processed with the conical surface 174 and join with seal spool pad 25;
By adjusting screw rod 21 rotations, change the pressure of Regulation spring 3, thereby drive the size in the tip-lever support 17 upper end open gaps of adjusting part 16, inlet pressure decompression is adjusted to required outlet pressure value, and the aperture of the feedback effect control spool by outlet pressure is kept the stable of outlet pressure; The motion of controlling mechanism directly is associated with outlet pressure, in case outlet pressure changes, spool will movement therewith be realized the pressure stabilization function of decompressor.
Described decompressor body cap 20 upper ends are connected with decompressor valve body 8 by screw thread, and the lower end has tapped hole to be used to connect adjusting screw rod 21, and one or several relief holes 102 are arranged on the decompressor body cap 20, play the decompression protection effect.
Described Regulation spring 3 compresses or pull-off spring seat 5, the pressure that propagation of pressure is set up the low-pressure gas of output to the pressure regulation assembly 16 will be regulated, isolate ambient atmosphere simultaneously, the effect of safety valve is played in pressure release when the input pressurized gas exceed permitted value or decompressor and break down.
Described spool 13 comprises valve core 23, screw 24, sealing gasket 25; Described valve core cylindrical has circular groove 133, and inside is processed with pressure-bearing spring chamber 131 and pressure-bearing spring 12 fixing lug boss 132, and upper end is processed with screw 24 connecting threads, and screw 24 screws sealing gasket 25 is pressed on the valve core 23; Valve core inside is processed with the fixing lug boss 112 of spool chamber 111 and pressure-bearing spring 12.
Described spool 13, pressure-bearing spring 12 are installed in the valve core case 11, valve core case 11 is connected on the decompressor valve body 8 by outside thread, pressure-bearing spring 12 embeds and supports spool 13 in the spool 13, tetrafluoro packing ring 9 seal valve core print seats 11 and decompressor valve body 8, push rod 14 passes tip-lever support 17 and is pressed on the spool 13, and tip-lever support 17 is connected on the decompressor valve body 8 by outside thread; Adjusting pressure compresses by air film assembly 18 or loosens push rod 14, and push rod 14 compresses or loosens spool 13, and gap length between regulating spool 13 and the tip-lever support 17 is regulated pressure and the flow of setting up the low-pressure gas of exporting.
Described connection part 15 comprises high voltage input terminal 151, low-voltage output 152 and pressure gauge 10.
Described connection part 15 is connected with decompressor by screw or bolt or is welded on the decompressor, and pressure gauge 10 is by being threadedly connected on high voltage input terminal 151, the low-voltage output 152.
Institute's pressure gauge 10 adopts radially or pressure gauge with back connection; Pressure gauge 10 is respectively installed one according to the practical application needs on high voltage input terminal, low-voltage output connection part, perhaps only install one on low pressure input end connection part, perhaps is installed on the decompressor connection part pipeline in addition.
Described high voltage input terminal connection part links to each other with high-pressure gas pipeline, and the low-voltage output connection part links to each other with low pressure output gas piping.
When decompressor was worked, gas pressure reduced in the gas output decompressor low-pressure cavity, and spool is opened, and pressurized gas ceaselessly enter low pressure chamber by the spool gap, realize the lasting output of gas.Gas output pressure drives the pressure size that adjusting part is adjusted Regulation spring by the rotation adjusting screw rod, promotes the size of pressure regulation assembly control spool opening clearance.The effect of air film assembly is transmit to regulate the force value that pressure is regulated the output low-pressure gas, contacting of isolated high-voltage gas and ambient atmosphere simultaneously, and the effect of safety valve is played in pressure release when importing pressurized gas and exceed permitted value or decompressor and break down.Connection part one end is connected with high-pressure gas pipeline, and the other end is connected with output low-pressure gas pipeline.The pressure of the low-pressure gas of pressurized gas and output is read by the pressure gauge at connection part two ends, thereby is adjusted to the working pressure that needs.
The beneficial effects of the utility model are: having of the big flow special gas of the utility model decompressor is simple in structure, adjusting is accurate, the life-span is long, and pressurized gas can more accurately reach needed working pressure through the decompressor step-down; The pressure feedback sensitivity can guarantee the gas that output services pressure is more stable, and the low-pressure gas working pressure of output does not change with the variation of input high-pressure gas pressure; The delivery pressure scope is big, and maximum can reach 2.0MPa, and output flow is big, and maximum can reach 200Nm
3/ h; The volume that meets the demands fully is little, the operating conditions requirement of the special operation condition that delivery pressure and flow are big.
Description of drawings
Fig. 1 is an overall appearance schematic representation of the present utility model.
Fig. 2 is a sectional structure sectional view of the present utility model.
Fig. 3 is the structural representation of decompressor valve body 8 of the present utility model.
Fig. 4 is the structural representation of tip-lever support 17 of the present utility model.
Fig. 5 is the structural representation of valve core case 11 of the present utility model.
Fig. 6 is the structural representation of spool 13 of the present utility model.
Embodiment
Referring to Fig. 1～shown in Figure 6: a kind of big flow special gas decompressor is characterized in that it includes decompressor valve body 8, body cap 20, spool 13, air film assembly 18, adjusting part 1, pressure regulation assembly 16, connection part 15, pressure gauge 10;
Be provided with hyperbaric chamber 81, low pressure chamber 83 in the described decompressor valve body 8, link to each other by circular groove or duct 82;
Described air film assembly 18 comprises: air film seat 7, air film 6, spring seat 5, packing ring 4, nut 19; Air film 6, spring seat 5 are fixed on the air film seat 7 by nut 19, and packing ring 4 is pressed on the air film 6;
Described adjusting part 1 comprises regulating handle 22, adjusting screw rod 21, Regulation spring 3, regulates spring pad 2; Described adjusting screw rod 21 outer end vertical axis directions have through hole and embed regulating handle 22, and inner end is inlayed steel ball 101, join with adjusting spring pad 2, regulate spring pad 2 and are embedded in Regulation spring 3 underparts; Rotation regulating handle 22, adjusting screw rod 21 end steel balls are by regulating spring pad 2 and evenly compress or loosening Regulation spring 3;
Described pressure regulation assembly 16 comprises tip-lever support 17, push rod 14, tetrafluoro packing ring 9, spool 13, pressure-bearing spring 12, valve core case 11; Described tip-lever support 17 centers are push rod chambeies 171, are processed with several low-pressure gas ducts 172 outside the push rod chamber and are connected with the low pressure chamber 83 of decompressor, and tip-lever support 17 upper ends are processed with the conical surface 174 and join with seal spool pad 25;
By adjusting screw rod 21 rotations, change the pressure of Regulation spring 3, thereby drive the size in the tip-lever support 17 upper end open gaps of adjusting part 16, inlet pressure decompression is adjusted to required outlet pressure value, and the aperture of the feedback effect control spool by outlet pressure is kept the stable of outlet pressure; The motion of controlling mechanism directly is associated with outlet pressure, in case outlet pressure changes, spool will movement therewith be realized the pressure stabilization function of decompressor.
Described decompressor body cap 20 upper ends are connected with decompressor valve body 8 by screw thread, and the lower end has tapped hole to be used to connect adjusting screw rod 21, and one or several relief holes 102 are arranged on the decompressor body cap 20, play the decompression protection effect.
Described Regulation spring 3 compresses or pull-off spring seat 5, the pressure that propagation of pressure is set up the low-pressure gas of output to the pressure regulation assembly 16 will be regulated, isolate ambient atmosphere simultaneously, the effect of safety valve is played in pressure release when the input pressurized gas exceed permitted value or decompressor and break down.
Described spool 13 comprises valve core 23, screw 24, sealing gasket 25; Described valve core cylindrical has circular groove 133, and inside is processed with pressure-bearing spring chamber 131 and pressure-bearing spring 12 fixing lug boss 132, and upper end is processed with screw 24 connecting threads, and screw 24 screws sealing gasket 25 is pressed on the valve core 23; Valve core inside is processed with the fixing lug boss 112 of spool chamber 111 and pressure-bearing spring 12.
Described spool 13, pressure-bearing spring 12 are installed in the valve core case 11, valve core case 11 is connected on the decompressor valve body 8 by outside thread, pressure-bearing spring 12 embeds and supports spool 13 in the spool 13, tetrafluoro packing ring 9 seal valve core print seats 11 and decompressor valve body 8, push rod 14 passes tip-lever support 17 and is pressed on the spool 13, and tip-lever support 17 is connected on the decompressor valve body 8 by outside thread; Adjusting pressure compresses by air film assembly 18 or loosens push rod 14, and push rod 14 compresses or loosens spool 13, and gap length between regulating spool 13 and the tip-lever support 17 is regulated pressure and the flow of setting up the low-pressure gas of exporting.
Described connection part 15 comprises high voltage input terminal 151, low-voltage output 152 and pressure gauge 10.
Described connection part 15 is connected with decompressor by screw or bolt or is welded on the decompressor, and pressure gauge 10 is by being threadedly connected on high voltage input terminal 151, the low-voltage output 152.
Institute's pressure gauge 10 adopts radially or pressure gauge with back connection; Pressure gauge 10 is respectively installed one according to the practical application needs on high voltage input terminal, low-voltage output connection part, perhaps only install one on low pressure input end connection part, perhaps is installed on the decompressor connection part pipeline in addition.
Described high voltage input terminal connection part links to each other with high-pressure gas pipeline, and the low-voltage output connection part links to each other with low pressure output gas piping.
When decompressor was worked, gas pressure reduced in the gas output decompressor low-pressure cavity, and spool 13 is opened, and pressurized gas ceaselessly enter low pressure chamber by the spool gap, realize the lasting output of gas.Gas output pressure drives the pressure size that adjusting part 1 is adjusted Regulation spring 3 by rotation adjusting screw rod 21, promotes the size of pressure regulation assembly 16 control spools 13 opening clearance.The effect of air film assembly 18 is transmit to regulate the force value that pressure is regulated the output low-pressure gas, contacting of isolated high-voltage gas and ambient atmosphere simultaneously, and the effect of safety valve is played in pressure release when importing pressurized gas and exceed permitted value or decompressor and break down.Connection part 15 1 ends are connected with high-pressure gas pipeline, and the other end is connected with output low-pressure gas pipeline.The pressure of the low-pressure gas of pressurized gas and output is read by the pressure gauge at connection part two ends, thereby is adjusted to the working pressure that needs.
Claims (8)
1. one kind big flow special gas decompressor, it is characterized in that it includes decompressor valve body (8), body cap (20), spool (13), air film assembly (18), adjusting part (1), pressure regulation assembly (16), connection part (15), pressure gauge (10);
Be provided with hyperbaric chamber (81), low pressure chamber (83) in the described decompressor valve body (8);
Described air film assembly (18) comprising: air film seat (7), air film (6), spring seat (5), packing ring (4), nut (19); Air film (6), spring seat (5) are fixed on the air film seat (7) by nut (19), and packing ring (4) is pressed on the air film (6);
Described adjusting part (1) comprises regulating handle (22), adjusting screw rod (21), Regulation spring (3), regulates spring pad (2); Described adjusting screw rod (21) outer end vertical axis direction has through hole and embeds regulating handle (22), and inner end is inlayed steel ball (101), joins with adjusting spring pad (2), regulates spring pad (2) and is embedded in Regulation spring (3) underpart; Rotation regulating handle (22), adjusting screw rod (21) end steel ball evenly compresses by adjusting spring pad (2) or loosens Regulation spring (3);
Described pressure regulation assembly (16) comprises tip-lever support (17), push rod (14), tetrafluoro packing ring (9), spool (13), pressure-bearing spring (12), valve core case (11); Described tip-lever support (17) center is push rod chamber (171), is processed with several low-pressure gas ducts (172) outside the push rod chamber and is connected with the low pressure chamber (83) of decompressor, and tip-lever support (17) upper end is processed with the conical surface (174) and joins with seal spool pad (25).
2. big flow special gas decompressor as claimed in claim 1; it is characterized in that; described decompressor body cap (20) upper end is connected with decompressor valve body (8) by screw thread; the lower end has tapped hole to be used to connect adjusting screw rod (21); one or several relief holes (102) are arranged on the decompressor body cap (20), play the decompression protection effect.
3. big flow special gas decompressor as claimed in claim 1 is characterized in that described spool (13) comprises valve core (23), screw (24), sealing gasket (25); Described valve core cylindrical has circular groove (133), inside is processed with pressure-bearing spring chamber (131) and pressure-bearing spring (12) fixing lug boss (132), upper end is processed with screw (24) connecting thread, and screw (24) screws sealing gasket (25) is pressed on the valve core (23); Valve core inside is processed with the fixing lug boss (112) of spool chamber (111) and pressure-bearing spring (12).
4. big flow special gas decompressor as claimed in claim 3, it is characterized in that, described spool (13), pressure-bearing spring (12) are installed in the valve core case (11), valve core case (11) is connected on the decompressor valve body (8) by outside thread, pressure-bearing spring (12) embeds and supports spool (13) in the spool (13), tetrafluoro packing ring (9) seal valve core print seat (11) and decompressor valve body (8), push rod (14) passes tip-lever support (17) and is pressed on the spool (13), and tip-lever support (17) is connected on the decompressor valve body (8) by outside thread; Adjusting pressure compresses by air film assembly (18) or loosens push rod (14), and push rod (14) compresses or loosens spool (13), and gap length between regulating spool (13) and the tip-lever support (17) is regulated pressure and the flow of setting up the low-pressure gas of exporting.
5. big flow special gas decompressor as claimed in claim 1 is characterized in that described connection part (15) comprises high voltage input terminal (151), low-voltage output (152) and pressure gauge (10).
6. big flow special gas decompressor as claimed in claim 1, it is characterized in that, described connection part (15) is connected with decompressor by screw or bolt or is welded on the decompressor, and pressure gauge (10) is by being threadedly connected on high voltage input terminal (151), the low-voltage output (152).
7. big flow special gas decompressor as claimed in claim 6 is characterized in that, institute's pressure gauge (10) adopts radially or pressure gauge with back connection; Pressure gauge (10) is respectively installed one according to the practical application needs on high voltage input terminal, low-voltage output connection part, perhaps only install one on low pressure input end connection part, perhaps is installed on the decompressor connection part pipeline in addition.
8. big flow special gas decompressor as claimed in claim 7 is characterized in that described high voltage input terminal connection part links to each other with high-pressure gas pipeline, and the low-voltage output connection part links to each other with low pressure output gas piping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220698561 CN203082301U (en) | 2012-12-17 | 2012-12-17 | Gas pressure reducer for mass flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220698561 CN203082301U (en) | 2012-12-17 | 2012-12-17 | Gas pressure reducer for mass flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203082301U true CN203082301U (en) | 2013-07-24 |
Family
ID=48828139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220698561 Withdrawn - After Issue CN203082301U (en) | 2012-12-17 | 2012-12-17 | Gas pressure reducer for mass flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203082301U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075552A (en) * | 2012-12-17 | 2013-05-01 | 中冶焊接科技有限公司 | High-flow-rate special gas pressure reducing device |
| CN105587909A (en) * | 2014-10-16 | 2016-05-18 | 河南航天液压气动技术有限公司 | Multi-stage pilot-operated type gas pressure reducer |
-
2012
- 2012-12-17 CN CN 201220698561 patent/CN203082301U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075552A (en) * | 2012-12-17 | 2013-05-01 | 中冶焊接科技有限公司 | High-flow-rate special gas pressure reducing device |
| CN103075552B (en) * | 2012-12-17 | 2014-09-03 | 中冶焊接科技有限公司 | High-flow-rate special gas pressure reducing device |
| CN105587909A (en) * | 2014-10-16 | 2016-05-18 | 河南航天液压气动技术有限公司 | Multi-stage pilot-operated type gas pressure reducer |
| CN105587909B (en) * | 2014-10-16 | 2019-04-30 | 河南航天液压气动技术有限公司 | A kind of multistage pressure leading gas pressure reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130724 Effective date of abandoning: 20140903 |
|
| RGAV | Abandon patent right to avoid regrant |