CN203009944U - Pressure retaining valve with automatic drainage and pollution discharge functions - Google Patents
Pressure retaining valve with automatic drainage and pollution discharge functions Download PDFInfo
- Publication number
- CN203009944U CN203009944U CN 201220749003 CN201220749003U CN203009944U CN 203009944 U CN203009944 U CN 203009944U CN 201220749003 CN201220749003 CN 201220749003 CN 201220749003 U CN201220749003 U CN 201220749003U CN 203009944 U CN203009944 U CN 203009944U
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- valve rod
- pressure retaining
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Abstract
The utility model discloses a pressure retaining valve with automatic drainage and pollution discharge functions, which comprises a valve body, a valve cavity, a plug at the bottom end of the valve body, a valve rod, an inlet connector at the top end of the valve cavity, an end seal between the wall of the inlet and the inlet connector, and a valve cavity communicated with the inlet; the lower extreme of valve rod passes the guiding hole at end cap center, and the upper end of valve rod is sealed dish, and sealed dish corresponds the import, and sealed dish is greater than the import, is less than the internal diameter of imported connector, plays the switching action to the import, and the cover has pressure spring on the valve rod between sealed dish and end cap, has valve pocket and outside communicating drain outlet on the end cap. The outer side of the inlet connector is provided with a connecting thread. The valve rod is a rubber vulcanization rod column, a sealing surface at the upper end of a sealing disc at the upper end of the valve rod is in threaded connection with the valve body through a rubber sealing layer plug, and a hexagonal adjusting head is arranged at the lower end of the plug. The utility model discloses can effectively replace the function of former valve and the uninstallation valve that drains to can realize energy memory automatic drainage and blowdown, reduce damp and hot air source and influence whole system's harm.
Description
Technical field
The utility model relates to a kind of pressure retaining valve with the Auto-drainage dirt eliminating function, belongs to the component in air pressure braking system of automobile.
Background technique
Feather valve is a valve body assembly controlling the car load operating air pressure, at first enters into feather valve from air compressor high temperature and high pressure gas out; Discharging valve is a valve body assembly that is installed on energy storage device, and major function is by manual operation, the cooling greasy dirt that forms in energy storage device to be entered atmosphere.In Full Vehicle System design, both common layout match patterns are that high temperature and high pressure gas enters feather valve by pipeline, then enter energy storage device by pipeline at present, and discharging valve is equipped with in the energy storage device bottom; By regulating the feather valve contained spring, can realize car load pressurize requirement, feather valve inside is with non-return valve function, in order to prevent gas backstreaming; Steam and the greasy dirt of coming from air compressor through after energy storage device cooling, are gathered in the bottom, and discharging valve enters atmosphere by manual operation with it, thereby realizes the pressurize of whole system and discharge water, the cleaning of assurance system.But in actual the use due to the feather valve complex structure, and be installed on the energy storage device front end, often infiltrate superheated vapor and greasy dirt, cause inner body easily impaired, assembly maintenance rate and disabler rate are always high, and discharging valve needs manual operation, cumbersome, the efficient that discharges water can not be guaranteed, in the car load using process, ponding in energy storage device has been affected each valve body assembly performance of arranging after the energy storage device owing in time discharging, and there is certain hidden danger in this reliability to whole system.
Summary of the invention
The utility model arranges in line with optimization system, the purpose of saving cost provide a kind of simple in structure, reliability is high, cost is low, be applicable to the pressure retaining valve with the Auto-drainage dirt eliminating function of gas braking light-duty vehicle.
The technical solution of the utility model: the pressure retaining valve with the Auto-drainage dirt eliminating function of the present utility model comprises valve body, valve pocket, the plug of valve body bottom, valve rod, the valve pocket top is the import connecting head, and the end envelope is arranged between the wall of import and import connecting head, and import communicates with valve pocket; The pilot hole at plug center is passed in the lower end of valve rod, the upper end of valve rod is seal disc, the corresponding import of seal disc, seal disc is greater than import, less than the internal diameter of import connecting head, import is played switching function, cover has pressure spring on the valve rod between seal disc and plug, and the outfall of valve pocket and exterior is arranged on plug.
Be threaded between described plug and valve body, there is the hexagonal adjusting head plug lower end.
There is connecting thread in the outside of described import connecting head.
Described valve rod is vulcanization of rubber roofbolt, and the sealing surface of the seal disc upper end of the upper end of valve rod has rubber sealant.
Described pressure retaining valve with the Auto-drainage dirt eliminating function has the limited ring dais of pressure spring on every side at plug upside outfall.
Advantage of the present utility model: the utility model can effectively substitute the function of former discharging valve and feather valve, and can realize energy storage device Auto-drainage and blowdown, reduces damp and hot source of the gas to the damage effect of whole system.The utility model is simple in structure, cost of production is low, assembling is quick, removes manual operation from, is applicable to the straight air brake system train type, and after adopting new arrangement, integral vehicle cost reduces, and later maintenance is changed convenient, the corresponding minimizing of maintenance damages.
Description of drawings
Fig. 1 is sectional structure schematic diagram of the present utility model.
Fig. 2 the utility model working state structure schematic diagram.
Fig. 3 is the layout schematic diagram that the utility model is arranged on drainage system.
Embodiment
Arrange below in conjunction with technological scheme shown in accompanying drawing the utility model is further described, arrange but the utility model is not limited to this technological scheme:
Fig. 1, Fig. 2 are sectional structure schematic diagram of the present utility model: the pressure retaining valve with the Auto-drainage dirt eliminating function of the present utility model comprises valve body 1, valve pocket 2, the plug 3 of valve body 1 bottom, valve rod 4, the valve pocket top is import connecting head 6, end envelope 10 is arranged between the wall of import 6a and import connecting head 6, and import 6a communicates with valve pocket 2; The pilot hole at plug 3 centers is passed in the lower end of valve rod 4, the upper end of valve rod 4 is seal discs 5, the corresponding import 6a of seal disc 5, seal disc 5 is greater than import 6a, less than the internal diameter of import connecting head 6,6a plays switching function to import, cover has pressure spring 7 on the valve rod 4 between seal disc 5 and plug 3, and the outfall 8 of valve pocket 2 and exterior is arranged on plug 3.
The pilot hole at plug 3 centers is passed in the lower end of valve rod 4, the upper end of valve rod 4 is seal discs 5, the import 6 on the corresponding valve pocket of seal disc 5 top, seal disc 5 is greater than import 6, less than valve pocket 2, to 6 switching functions of import, cover has pressure spring 7 on the valve rod 4 between seal disc 5 and plug 3, and the outfall 8 of valve pocket 2 and exterior is arranged on plug 3.
Be threaded between described plug 3 and valve body 1, there is hexagonal adjusting head 3a plug 3 lower ends.
There is connecting thread in the outside of described import connecting head 6.
Described valve rod 4 is vulcanization of rubber roofbolt, and the sealing surface of seal disc 5 upper ends of the upper end of valve rod 4 has rubber sealant 9.
The limited ring dais 11 that pressure spring 7 is arranged around plug 3 upside outfalls 8.
At first regulate the position of plug 3 by hexagonal adjusting head 3a, make the pretightening force of spring 7 reach the designing requirement value.
During less than the pressurize value, valve rod 4 makes the seal disc 5 of upper end and the interior edge face gluing, sealing of the end envelope 10 of import connecting head 6 by spring 7 pretensions when gas pressure.
As Fig. 2: during greater than the pressurize value, valve rod 4 seal faces are open as top air pressure A, and gas is directly discharged by valve pocket 2 and by the outfall 8 on plug 3, discharges simultaneously moisture and greasy dirt.The pilot hole at plug 3 centers has leading role to valve rod 4, guarantees orientation movement and the seal disc 5 and the applying of holding envelope 10 interior edge faces of valve rod 4.
Fig. 3 is the layout schematic diagram that the utility model is arranged on drainage system: the outside thread of pressure retaining valve B of the present utility model by import connecting head 6 is installed on the energy storage device bottom, high temperature and high pressure gas enters energy storage device 13 by pipeline 14, pressure retaining valve B of the present utility model is equipped with in the energy storage device bottom, installs one-way valve 12 additional and guarantee that gas does not produce backflow before energy storage device; Steam and the greasy dirt of coming from air compressor, through after energy storage device 13 cooling, be gathered in the bottom, after gas reached design pressurize value, pressure retaining valve B of the present utility model began automatic vent, moisture and the greasy dirt that will be gathered in simultaneously the bottom enter atmosphere, in the car load running, this invention can guarantee the discharging that continues, has removed manually-operated uncertainty from, improved the cleaning efficiency of system, the reliability of car load also is improved.
The utility model seals valve body itself by spring pre-tightening and high-performance rubber spare, initial tension of spring is adjustable, when gas pressure reaches the designing requirement value, sealed mouth is opened, in the time of exhaust, moisture and greasy dirt by cooling gathering in energy storage device enter atmosphere by valve body, complete Auto-drainage, dirt eliminating function, realize gas pressurize requirement.
Valve body exhaust sectional area of the present utility model is avoided under uniform flow more than or equal to gas air inlet sectional area, raises because the exhaust sectional area causes the energy storage force value not, does not reach the pressurize requirement.
Claims (7)
1. pressure retaining valve with the Auto-drainage dirt eliminating function, comprise valve body (1), valve pocket (2), the plug (3) of valve body (1) bottom, valve rod (4), it is characterized in that: the valve pocket top is import connecting head (6), and end envelope (10) is arranged between the wall of import (6a) and import connecting head (6), and import (6a) communicates with valve pocket (2); The pilot hole at plug (3) center is passed in the lower end of valve rod (4), the upper end of valve rod (4) is seal disc (5), the corresponding import of seal disc (5) (6a), seal disc (5) is greater than import (6a), less than the internal diameter of import connecting head (6), import (6a) is played switching function, the upper cover of valve rod (4) between seal disc (5) and plug (3) has pressure spring (7), and the outfall (8) of valve pocket (2) and exterior is arranged on plug (3).
2. the pressure retaining valve with the Auto-drainage dirt eliminating function according to claim 1 is characterized in that: be threaded between plug (3) and valve body (1), there is hexagonal adjusting head (3a) plug (3) lower end.
3. the pressure retaining valve with the Auto-drainage dirt eliminating function according to claim 1 and 2, it is characterized in that: there is connecting thread in the outside of import connecting head (6).
4. the pressure retaining valve with the Auto-drainage dirt eliminating function according to claim 1 and 2, it is characterized in that: valve rod (4) is vulcanization of rubber roofbolt, the sealing surface of seal disc (5) upper end of the upper end of valve rod (4) has rubber sealant (9).
5. the pressure retaining valve with the Auto-drainage dirt eliminating function according to claim 1 and 2, is characterized in that: the limited ring dais (11) that pressure spring (7) are arranged on every side at plug (3) upside outfall (8).
6. the pressure retaining valve with the Auto-drainage dirt eliminating function according to claim 3, it is characterized in that: valve rod (4) is vulcanization of rubber roofbolt, the sealing surface of seal disc (5) upper end of the upper end of valve rod (4) has rubber sealant (9).
7. the pressure retaining valve with the Auto-drainage dirt eliminating function according to claim 3, is characterized in that: the limited ring dais (11) that pressure spring (7) are arranged on every side at plug (3) upside outfall (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220749003 CN203009944U (en) | 2012-12-31 | 2012-12-31 | Pressure retaining valve with automatic drainage and pollution discharge functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220749003 CN203009944U (en) | 2012-12-31 | 2012-12-31 | Pressure retaining valve with automatic drainage and pollution discharge functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009944U true CN203009944U (en) | 2013-06-19 |
Family
ID=48601541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220749003 Expired - Fee Related CN203009944U (en) | 2012-12-31 | 2012-12-31 | Pressure retaining valve with automatic drainage and pollution discharge functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009944U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016800A (en) * | 2012-12-31 | 2013-04-03 | 东风汽车股份有限公司 | Pressure retaining valve with automatic drainage and pollution discharge functions |
| CN105927982A (en) * | 2016-06-22 | 2016-09-07 | 北京金泉普旺节能技术有限公司 | Nitrogen and oxygen gas mixture combustion system |
| CN105927769A (en) * | 2016-06-22 | 2016-09-07 | 北京金泉普旺节能技术有限公司 | Pressure-reducing safety valve |
-
2012
- 2012-12-31 CN CN 201220749003 patent/CN203009944U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016800A (en) * | 2012-12-31 | 2013-04-03 | 东风汽车股份有限公司 | Pressure retaining valve with automatic drainage and pollution discharge functions |
| CN105927982A (en) * | 2016-06-22 | 2016-09-07 | 北京金泉普旺节能技术有限公司 | Nitrogen and oxygen gas mixture combustion system |
| CN105927769A (en) * | 2016-06-22 | 2016-09-07 | 北京金泉普旺节能技术有限公司 | Pressure-reducing safety valve |
| CN105927982B (en) * | 2016-06-22 | 2019-04-09 | 北京金泉普旺节能技术有限公司 | Hydrogen and oxygen mixture combustion system |
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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: 20130619 Termination date: 20141231 |
|
| EXPY | Termination of patent right or utility model |