CN202109049U - Positive, negative pressure over-pressure insurance metering valve - Google Patents
Positive, negative pressure over-pressure insurance metering valve Download PDFInfo
- Publication number
- CN202109049U CN202109049U CN2011201847125U CN201120184712U CN202109049U CN 202109049 U CN202109049 U CN 202109049U CN 2011201847125 U CN2011201847125 U CN 2011201847125U CN 201120184712 U CN201120184712 U CN 201120184712U CN 202109049 U CN202109049 U CN 202109049U
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- pressure
- pressure reduction
- relief
- valve
- chamber
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Abstract
The utility model discloses a positive, negative pressure over-pressure insurance metering valve, comprising a valve main body which is divided into a pressure entrance cavity communicated with a pressure entrance channel and a pressure reduction cavity communicated with a pressure transfer channel by a pressure reduction valve seat, wherein the pressure entrance cavity and the pressure reduction cavity are mutually communicated by a connection hole in the center of the pressure reduction valve seat, a main pressure reduction driving slice is arranged in the pressure reduction cavity, a pressure adjustment device is connected with the top of the main pressure reduction driving slice, a pressure reduction valve core is arranged in the pressure entrance cavity and connected with the main pressure reduction driving slice by a connection rod passing through the connection hole, an auxiliary pressure reduction hole is opened in the middle part of the connection rod and communicated with an auxiliary pressure reduction cavity below the pressure reduction valve core, an axial pressure reduction channel is arranged above the auxiliary pressure reduction hole, the pressure reduction channel is communicated with a pressure discharge joint, an axial pressure reduction valve core is arranged in the pressure reduction channel and connected with a pressure reduction adjustment device. The rated pressure and flow of the valve is stabilized and the negative pressure and the over pressure is discharged.
Description
Technical field
The utility model relates to a kind of device with gas or fluid pressure attenuating and maintenance constant voltage, especially can control constant flow rate and the positive back-pressure superpressure insurance proportional valve of draining back-pressure.
Background technique
Relief pressure valve cartridge, decompression driving elastomer diaphragm, screw press that present known reduction valve is configured with pressure adjusting spring, band push rod are in series, and the cross section of relief pressure valve cartridge directly directly contacts with the entrance pressure medium, be directly proportional by pressure resistance; When entrance pressure pressure increases; The relief pressure valve cartridge cross section receives pressure resistance big, and decompression drives the stressed also big of elastomer diaphragm, the former relief spring power relief pressure valve cartridge of not opened of having set; Cisco unity malfunction; Relief pressure valve cartridge is in closes or semi-closed state, no medium supply terminal or promptly be that to have also be intermittent by phased manner, and quantity is extremely unstable.
Summary of the invention
Can not steady pressure and regime flow and do not have the deficiency that the back-pressure superpressure is insured in order to overcome existing reduction valve; The utility model provides a kind of positive back-pressure superpressure insurance proportional valve; This valve is not only little to the influence of entrance pressure variation in pressure; Can stablize rated pressure, stablize rated flow, and can drain, the safe handling of protection terminal equipment the back-pressure superpressure.
The technological scheme that the utility model is taked is:
A kind of positive back-pressure superpressure insurance proportional valve comprises valve body, valve body be depressurized valve seat be divided into the entrance pressure chamber that communicates with the entrance pressure passage and with the relief chamber that send pressure passageway to communicate; Entrance pressure chamber and relief chamber are interconnected through the attachment hole that is positioned at the Pressure relief valve seat center, are provided with main decompression driving plate in the relief chamber, and the top of main decompression driving plate is connected with a regulator; Entrance pressure is provided with relief pressure valve cartridge in the chamber; Main decompression driving plate and relief pressure valve cartridge through one pass attachment hole connecting rod interconnect, the middle part of said connecting rod has the assisted decompression hole, the assisted decompression hole communicates with assisted decompression chamber below being positioned at relief pressure valve cartridge; The top in assisted decompression hole is provided with axial pressure release passage; Pressure release passage is communicated with the row pressure joint, is provided with axial pressure releasing valve core in the pressure release passage, and pressure releasing valve core is connected with a pressure release controlling device.
In the utility model, said regulator comprises main pressure regulator spring and the screw press that is positioned at main decompression driving plate top, is provided with the spring pressure cap between screw press and the main pressure regulator spring.
In the utility model, said pressure release controlling device comprises pressure adjusting spring and the pressure regulation cap that is positioned at the pressure releasing valve core top.
In the utility model, be provided with the decompression secondary spring that is connected with relief pressure valve cartridge in the said assisted decompression chamber.
The beneficial effect of the utility model is: during use, the medium in the entrance pressure chamber gets into relief chamber from attachment hole, when the pressure of entrance pressure passage increases; Pressure difference between entrance pressure chamber and the relief chamber changes, simultaneously with assisted decompression chamber that the assisted decompression hole is connected in pressure also increase, it is up mobile to drive main decompression driving plate and relief pressure valve cartridge; Thereby reduce entrance pressure chamber and the size that increases relief chamber; Make rate-of flow stable, vice versa, thereby realize the effect of pressure limiting voltage stabilizing, current stabilization control amount; Relief pressure valve cartridge has also sealed the attachment hole of Pressure relief valve seat when with the equipment medium pathway closure that send pressure passageway to link to each other the time; The entrance pressure chamber is closed, and the assisted decompression hole that is positioned at connecting rod middle part gets into relief chamber, when remaining medium in the equipment is heated because of waste heat or other reasons expands and when producing backpressure; Remaining media is from getting into the assisted decompression hole and backing down the pressure release controlling device through pressure releasing valve core; Be discharged to pressure in the atmosphere through the row pressure joint, thereby play the effect that superpressure is insured, avoid equipment to be damaged; And the utility model is simple in structure, easy to make, is fit to large-scale promotion.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further:
Fig. 1 is the structural representation of present embodiment.
Embodiment
With reference to Fig. 1; A kind of positive back-pressure superpressure insurance proportional valve that present embodiment provided; Comprise valve body 1; Valve body 1 be depressurized valve seat 2 be divided into the entrance pressure chamber 4 that communicates with entrance pressure passage 3 and with the relief chamber that send pressure passageway 5 to communicate 6, entrance pressure chamber 4 is interconnected through the attachment hole 7 that is positioned at Pressure relief valve seat 2 centers with relief chamber 6.Be provided with the main decompression driving plate 8 of piston shape in the relief chamber 6; Main decompression driving plate 8 moves up and down the size that can increase or reduce relief chamber 6; The top of main decompression driving plate 8 is provided with the regulator that is made up of main pressure regulator spring 16, screw press 17 and spring pressure cap 18, can set the rated pressure of relief chamber 6 through regulating screw press 17.And in entrance pressure chamber 4, be provided with the relief pressure valve cartridge 9 of piston shape; Relief pressure valve cartridge 9 moves up and down the size that can increase or reduce entrance pressure chamber 4; The top of relief pressure valve cartridge 9 is provided with seal ring; When relief pressure valve cartridge 9 rose to top, the seal ring of relief pressure valve cartridge 9 withstood on 2 mouthfuls of Pressure relief valve seats and closes entrance pressure chamber 4 fully.In order to ensure main decompression driving plate 8 and the action of relief pressure valve cartridge 9 absolute synchronization, main decompression driving plate 8 and relief pressure valve cartridge 9 through one pass attachment hole 7 connecting rod 10 be mutually permanently connected.In order to help main decompression driving plate 8 can move up and down neatly with relief pressure valve cartridge 9; The middle part of connecting rod 10 has assisted decompression hole 11; After entrance pressure chamber 4 is depressurized spool 9 and shuts fully; Assisted decompression hole 11 just gets into relief chamber 6, and assisted decompression hole 11 communicates with the assisted decompression chamber 12 that is positioned at relief pressure valve cartridge 9 belows, is provided with the decompression secondary spring 21 that is connected with relief pressure valve cartridge 9 in the assisted decompression chamber 12.The top in assisted decompression hole 11 is provided with axial pressure release passage 13; Pressure release passage 13 is communicated with row pressure joint 14; Row pressure joint 14 and atmosphere; Be provided with axial pressure releasing valve core 15 in the pressure release passage 13, pressure releasing valve core 15 is connected with the pressure release controlling device that is made up of pressure adjusting spring 19 that is positioned at pressure releasing valve core 15 tops and pressure regulation cap 20, through regulating the specified pressure release pressure of pressure regulation cap 20 can regulate.
Further, because the utility model should be applicable to liquid state or gaseous medium, so its each connection part is for being tightly connected.
The above is the preferential mode of execution of the utility model, as long as realize that with basic identical means the purpose of the utility model all belongs to the scope of the utility model protection.
Claims (4)
1. a positive back-pressure superpressure is insured proportional valve; It is characterized in that: comprise valve body (1); Valve body (1) be depressurized valve seat (2) be divided into the entrance pressure chamber (4) that communicates with entrance pressure passage (3) and with send the pressure passageway relief chamber that (5) communicate (6); Entrance pressure chamber (4) and relief chamber (6) are interconnected through the attachment hole (7) that is positioned at Pressure relief valve seat (2) center, are provided with main decompression driving plate (8) in the relief chamber (6), and the top of main decompression driving plate (8) is connected with a regulator; Be provided with relief pressure valve cartridge (9) in the entrance pressure chamber (4); Main decompression driving plate (8) and relief pressure valve cartridge (9) through one pass attachment hole (7) connecting rod (10) interconnect, the middle part of said connecting rod (10) has assisted decompression hole (11), assisted decompression hole (11) communicate with assisted decompression chamber (12) below being positioned at relief pressure valve cartridge (9); The top in assisted decompression hole (11) is provided with axial pressure release passage (13); Pressure release passage (13) is communicated with row pressure joint (14), is provided with axial pressure releasing valve core (15) in the pressure release passage (13), and pressure releasing valve core (15) is connected with a pressure release controlling device.
2. positive back-pressure superpressure insurance proportional valve according to claim 1; It is characterized in that: said regulator comprises main pressure regulator spring (16) and the screw press (17) that is positioned at main decompression driving plate (8) top, is provided with spring pressure cap (18) between screw press (17) and the main pressure regulator spring (16).
3. positive back-pressure superpressure insurance proportional valve according to claim 1, it is characterized in that: said pressure release controlling device comprises pressure adjusting spring (19) and the pressure regulation cap (20) that is positioned at pressure releasing valve core (15) top.
4. positive back-pressure superpressure insurance proportional valve according to claim 1 is characterized in that: be provided with the decompression secondary spring (21) that is connected with relief pressure valve cartridge (9) in the said assisted decompression chamber (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201847125U CN202109049U (en) | 2011-06-03 | 2011-06-03 | Positive, negative pressure over-pressure insurance metering valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201847125U CN202109049U (en) | 2011-06-03 | 2011-06-03 | Positive, negative pressure over-pressure insurance metering valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202109049U true CN202109049U (en) | 2012-01-11 |
Family
ID=45434483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201847125U Expired - Fee Related CN202109049U (en) | 2011-06-03 | 2011-06-03 | Positive, negative pressure over-pressure insurance metering valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202109049U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111081480A (en) * | 2019-12-25 | 2020-04-28 | 湖南博信新能源科技有限公司 | Electrolyte pressure adjusting device |
-
2011
- 2011-06-03 CN CN2011201847125U patent/CN202109049U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111081480A (en) * | 2019-12-25 | 2020-04-28 | 湖南博信新能源科技有限公司 | Electrolyte pressure adjusting device |
| CN111081480B (en) * | 2019-12-25 | 2021-11-23 | 湖南法恩莱特新能源科技有限公司 | Electrolyte pressure adjusting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Foshan Nanhai Jie Ya Electrical Appliance Factory Co., Ltd. Assignor: Chen Shiquan Contract record no.: 2013440000469 Denomination of utility model: Positive, negative pressure over-pressure insurance metering valve Granted publication date: 20120111 License type: Exclusive License Record date: 20130927 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| 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: 20120111 Termination date: 20170603 |