CN204756052U - Novel axial -flow type step -down voltage regulator - Google Patents
Novel axial -flow type step -down voltage regulator Download PDFInfo
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- CN204756052U CN204756052U CN201520485682.XU CN201520485682U CN204756052U CN 204756052 U CN204756052 U CN 204756052U CN 201520485682 U CN201520485682 U CN 201520485682U CN 204756052 U CN204756052 U CN 204756052U
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- valve barrel
- pallet
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- valve body
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Abstract
The utility model relates to a novel axial -flow type step -down voltage regulator, it mainly comprises valve body, valve clack, case, spring, tray, diaphragm, moving member, maze group structure. Maze group structure comprises multi -disc maze piece, and high -pressure natural gas manage and says at first to enter into and carry out the step -down first time in the maze group structure, maze group structure comprises a lot of mazes piece, forms through vacuum brazing between the piece of maze, the fix with screw is on left valve body for the structure in whole maze group, and the natural gas after stepping down for the first time enters into the regulator, the case passes through threaded connection to be fixed to the cross, and the fixed screw connection that passes through of cross is on the moving member, the moving member is fixed between left valve body and right valve body, can be relative motion, is fixed with left tray and right tray on the moving member, and have the ventilation breather on left valve body, be connected with signal pipe on right valve body. The utility model relates to a rationally, under the condition of the indirect formula voltage regulator that does not adopt the pilot valve structure, realize that big pressure differential steps down.
Description
Technical field
The utility model relates to a kind of Novel axial flow type step-down pressure governor, can realize large pressure reduction step-down, and not adopt the indirect-action type pressure regulator of pilot valve structure, but high-pressure natural gas is divided into twice step-down, is belong to gas gathering and transportation technical field.
Background technique
The gas that current natural valve is stood out all needs to carry out pressure regulation process, generally enter into the rock gas of urban gate station probably at about 4MPa, but the pressure in fact arriving city dweller user's rock gas is generally tens KPa, carry out carrying out further step-down to high-pressure natural gas with regard to needs between this, the flow of urban gate station rock gas is all generally very large, adopts axial flow pressure regulator just to seem in urban gate station and has very important significance.Adopt pressure governor at present many with pilot valve structure, but it just requires relatively stricter for natural air-air source, require that source of the gas is the gas of relative clean, can not containing little particle, because once there be particle just likely to produce blocking to pilot valve, cause pressure governor not work.If a kind of device can be designed, High Pressure Difference step-down can be reached, less demanding to source of the gas again, so improve a lot to the stability of voltage regulator operation.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiencies in the prior art, a kind of Novel axial flow type step-down pressure governor is provided, be used for reducing a kind of equipment of urban gate station gas pressure, make the rock gas after reducing pressure with large discharge by and rear supply gas pressure requirement can be reached.
The utility model employing technological scheme is:
A kind of Novel axial flow type step-down of the utility model pressure governor, primarily of valve body, flap, spool, spring, pallet, diaphragm, moving part, labyrinth group structure composition.Labyrinth group structure is made up of multi-disc labyrinth sheet.First high-pressure natural gas enters in the group structure of labyrinth through pipeline and carries out first time step-down; Labyrinth group structure is made up of a lot of labyrinths sheet, forms between the sheet of labyrinth through vacuum brazing; Whole labyrinth group structure is screwed on left valve barrel, and the rock gas after first time step-down enters into regulator; Spool is threadedly attached to cross and fixes, and cross is fixedly connected by screw on moving part; Moving part is fixed between left valve barrel and right valve barrel, can do relative motion, and moving part and have O type circle between left valve barrel and right valve barrel for sealing gas; Moving part is fixed with left pallet and right pallet, between left pallet and right pallet, is embedded with diaphragm, by screw, left pallet, diaphragm, right pallet are fixed on moving part; Left flap, diaphragm, right flap are connected by screw together, and spring is placed between left valve barrel and left pallet; And on left valve barrel, there is spiracle, right valve barrel is connected with signal tube.
Consider and adopt direct-type effect axial flow pressure regulator, and under the large pressure reduction step-down of inlet pressure high (4MPa) outlet pressure low (0.4MPa), therefore consider to adopt two-stage step-down, after first inlet high pressure being reduced to certain pressure value, just carry out pressure regulation work.By twice step-down, temperature is fallen also well a lot of than a step-down.And whole device requires source of the gas neither be so strict, unlike indirection type pressure governor, require that air inlet is impure (mainly particle) little gas.
Advantage of the present utility model: make full use of labyrinth structure, carries out a step-down to pressurized gas, makes the gas pressure step-down entering pressure regulation part, is conducive to the work of whole pressure governor; Reasonable in design, when not adopting the indirection type pressure governor of pilot valve structure, realize large pressure reduction step-down.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of a kind of Novel axial flow type step-down of the utility model pressure governor;
Fig. 2 is labyrinth of the present utility model chip architecture schematic diagram.
In figure: 1. left valve barrel, 2. spiracle, 3. left chamber, 4. spring, 5. left flap, 6. left pallet, 7. diaphragm, 8. right pallet, 9.O type circle, 10. spool, 11. signal tubes, 12. right valve barrels, 13. crosses are fixed, 14.O type circle, 15. right chambers, 16. right flaps, 17. moving parts, 18.O type circle, 19. labyrinth sheets, 20. labyrinth group structures.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described specifically:
As shown in Figure 1 and Figure 2, the utility model utilizes a kind of Novel axial flow type step-down pressure governor, fix 13 by left valve barrel 1, right valve barrel 12, left flap 5, right flap 16, left chamber 3, right chamber 15, spool 10, cross, spring 4, left pallet 6, right pallet 8, diaphragm 7, moving part 17, spiracle 2, signal tube 11, O type circle (9,14,18), labyrinth sheet 19, labyrinth group structure 20 form.First high-pressure natural gas enters into 20 li, labyrinth group structure through pipeline and carries out first time step-down; Labyrinth group structure 20 is made up of a lot of labyrinths sheet 19, forms between labyrinth sheet 19 through vacuum brazing; Whole labyrinth group structure is screwed on left valve barrel 1, and the rock gas after first time step-down enters into regulator; Spool 10 is threadedly attached to cross and fixes on 13, and cross is fixed 13 and is connected by screw on moving part 17; Moving part 17 is fixed between left valve barrel 1 and right valve barrel 12, can do relative motion, and moving part 17 and have O type circle (14,18) between left valve barrel 1 and right valve barrel 12 for sealing gas; Moving part 17 is fixed with left pallet 6 and right pallet 8, between left pallet 6 and right pallet 8, is embedded with diaphragm 7, by screw, left pallet 6, diaphragm 7, right pallet 8 are fixed on moving part 17; Left flap 1, diaphragm 7, right flap 16 are connected by screw together, and spring 4 is placed between left valve barrel 1 and left pallet 6; And on left valve barrel 1, there is spiracle 3, right valve barrel 12 is connected with signal tube 11.
First gas enter into 20 li, the labyrinth group structure of pressure governor, and labyrinth group structure 20 includes multi-disc labyrinth sheet 19, forms between labyrinth sheet 19 through vacuum brazing.Pressurized gas just to have carried out first time step-down through labyrinth group structure 20, and gas continues to turn right flowing along passage through step-down.In an initial condition, because spool 10 is in closed state with left valve 1 body under the precompression effect of spring 4.Original state spring 4 is in compressive state.Gas is after group structure 20 step-down of labyrinth, make spool 10 and left valve barrel 1 between had gap gas just by this gap continue flow because spool 10 backs down by pressure effect to the right, just by this gap, the pressure of gas reduces further, until arrive rear pipeline delivery pressure requirement.Time spool 10 backs down by gas, moving part 17 drives left pallet 6, right pallet 8, diaphragm 7 moves right, further Compress Spring 4, gas now after signal tube 11 connects rear pressure regulation enters into right chamber 15, the maintenance that now pressure of the gas of right chamber 15 li and the compressive force of spring 4 and gas act on spool 10 balances each other, once this balance is broken, the gas pressure step-down of right chamber 15 li is such as entered into by signal tube 11, what be made up of the pressure of right chamber 15 li of gases and the compressive force of spring 4 is just less than the power that gas acts on spool 10 with joint efforts, now gas will promote spool 10 and moves right thus promote whole moving part 17 and be with dynamic diaphragm 7 to move right, the aperture of whole spool 10 is increased, more gas is allowed to pass through, thus increase the pressure of backside gas, make to enter into right chamber 15 li of gas pressure values to increase, thus make this state from newly reaching state of equilibrium.Left chamber 3 is connected with air by spiracle 2.Sealed by O type circle 18 between left chamber and gas flow, sealed by O type circle 14 between right chamber and gas flow.
The structure of labyrinth sheet is shown in Fig. 2, and gas enters from centre, from outside out.
Claims (1)
1. a Novel axial flow type step-down pressure governor, by left valve barrel (1), right valve barrel (12), left flap (5), right flap (16), left chamber (3), right chamber (15), spool (10), cross is fixed (13), spring (4), left pallet (6), right pallet (8), diaphragm (7), moving part (17), spiracle (2), signal tube (11), O type circle (9, 14, 18), labyrinth sheet (19), labyrinth group structure (20) forms, it is characterized in that: first high-pressure natural gas enters into through pipeline that labyrinth group structure (20) is inner carries out first time step-down, labyrinth group structure (20) is made up of a lot of labyrinths sheet (19), and labyrinth sheet forms through vacuum brazing between (19), whole labyrinth group structure (20) is screwed on left valve barrel (1), and the rock gas after first time step-down enters into regulator, spool (10) is threadedly attached to cross and fixes on (13), and cross is fixed (13) is connected by screw on moving part (17), moving part (17) is fixed between left valve barrel (1) and right valve barrel (12), and moving part (17) and have O type circle (14,18) between left valve barrel (1) and right valve barrel (12) for sealing gas, moving part (17) is fixed with left pallet (6) and right pallet (8), be embedded with diaphragm (7) between left pallet (6) and right pallet (8), by screw, left pallet (6), diaphragm (7), right pallet (8) be fixed on moving part (17), left flap (1), diaphragm (7), right flap (16) are connected by screw together, and spring (4) is placed between left valve barrel (1) and left pallet (6), and on left valve barrel (1), there is spiracle (3), right valve barrel (12) is connected with signal tube (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520485682.XU CN204756052U (en) | 2015-07-08 | 2015-07-08 | Novel axial -flow type step -down voltage regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520485682.XU CN204756052U (en) | 2015-07-08 | 2015-07-08 | Novel axial -flow type step -down voltage regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204756052U true CN204756052U (en) | 2015-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520485682.XU Expired - Fee Related CN204756052U (en) | 2015-07-08 | 2015-07-08 | Novel axial -flow type step -down voltage regulator |
Country Status (1)
| Country | Link |
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| CN (1) | CN204756052U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763960A (en) * | 2017-03-20 | 2017-05-31 | 四川长仪油气集输设备股份有限公司 | Piston type axle stream pressure regulator |
| CN109404580A (en) * | 2018-12-18 | 2019-03-01 | 诺威尔（天津）能源装备股份有限公司 | Axial flow pressure regulator and working method |
-
2015
- 2015-07-08 CN CN201520485682.XU patent/CN204756052U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763960A (en) * | 2017-03-20 | 2017-05-31 | 四川长仪油气集输设备股份有限公司 | Piston type axle stream pressure regulator |
| CN109404580A (en) * | 2018-12-18 | 2019-03-01 | 诺威尔（天津）能源装备股份有限公司 | Axial flow pressure regulator and working method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 Termination date: 20160708 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |