CN2583466Y - Pressure release valve - Google Patents
Pressure release valve Download PDFInfo
- Publication number
- CN2583466Y CN2583466Y CN 02261498 CN02261498U CN2583466Y CN 2583466 Y CN2583466 Y CN 2583466Y CN 02261498 CN02261498 CN 02261498 CN 02261498 U CN02261498 U CN 02261498U CN 2583466 Y CN2583466 Y CN 2583466Y
- Authority
- CN
- China
- Prior art keywords
- outer cover
- valve seat
- valve
- membranous disc
- liberation port
- 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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- Safety Valves (AREA)
Abstract
The utility model relates to a pressure release valve, which comprises a valve seat and an outer cover, wherein, an inner cavity of the valve seat is communicated with an opening on a cap of a sealed container, a membranous disc is arranged on the valve seat, a spring is arranged between the membranous disc and the top of the outer cover, and the center of the membranous disc is provided with a sign post, the head of which is extended out of a center hole of the outer cover and is contacted with a locking device positioned on the top of the outer cover; a sealing ring is arranged between the sign post and the center hole of the outer cover on which a releasing port is arranged, an umbrella skirt connected with the outer cover into integration is arranged on the outer cover above the releasing port, the valve seat is connected with a base fixed on the cap of the sealed container by screw threads, and the releasing port, the umbrella skirt on the releasing port and a center shaft of the valve seat form an acute angle. The utility model has the advantages of simple structure, easy processing to components and convenient assembly so as to reduce cost, and can prevent rain water from entering so as to enhance the reliable use of the pressure release valve.
Description
Technical field
The utility model relates to a kind of pressure relief valve, is a kind of overpressure protector of storing the seal container that gas, liquid are arranged.
Background technique
The general storage has the seal container of gas, liquid that pressure relief valve all is housed, and when some reason causes pressure in the container to surpass permitted value, is not damaged for guaranteeing container, must discharge its internal pressure.Existing pressure relief valve is arranged on the rainproof full skirt all more smooth (as shown in Figure 3) on the outer cover liberation port, so its rainproof poor effect, moreover, because the central shaft of liberation port is vertical with the central shaft of valve body, when release pressure, gas in the container, liquid are got dirty than large size around making around substantially horizontal sprays to.And this traditional pressure relief valve structure more complicated all, component processing is difficulty.Just there are above-mentioned two point defects in the patent No. for " 00211862.9 " " pressure relief valve ", this pressure relief valve is exactly to adopt to connect the labyrinth that interior cover and connection overcoat and bounding means matches with the assembling of case lid, the component manufacturing process complexity of this fit is installed pretty troublesome.
Summary of the invention
The purpose of this utility model is at the defective of prior art and deficiency, designs a kind of pressure relief valve of simple in structure, easy to connect, reliable performance.This pressure relief valve comprises valve seat, outer cover, valve base cavity communicates with the perforate that sealed container covers, on valve seat, be placed with membranous disc, between membranous disc and outer cover top, spring is housed, be placed with marker post at the membranous disc center, the head of marker post stretches out the center hole of outer cover, and push up mutually with the blocking device that is positioned at the outer cover top, between marker post and outer cover center hole, seal ring is housed, on outer cover, be provided with liberation port, the outer cover that is positioned at the top of liberation port is provided with the full skirt that fuses with outer cover, the valve seat of this pressure relief valve be fixed on the base that sealed container covers and interconnect with screw thread; The full skirt that is arranged on liberation port on the outer cover and liberation port top is less than or equal to 45 with the angle of central shaft and spends.The utility model is simple in structure, directly to be threaded, has reduced component between valve seat and the base, and the component easy processing, easy to assembly, reduced manufacture cost, and when release of pressure, the gas, the liquid contamination area that discharge are little, and water-resistant performance is good, has improved the usability of valve.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the structural representation of traditional pressure relief valve liberation port and full skirt.
Fig. 3 is the structural representation of full skirt on the utility model liberation port.
Label among the figure: 1-blocking device, 2-seal ring, 3-marker post, 4-outer cover, 5-spring, 6-membranous disc, 7-Sealing, 8-full skirt, 9-liberation port, 10-valve seat, 11-base.
Embodiment
As shown in Figure 1, outer cover 4 forms valve housing mutually with valve seat 10 to be threaded.Valve seat 10 and base 11 is that the outside thread of valve seat and the internal thread of base are connected to each other among the figure directly with being threaded, and base 11 is fixedlyed connected with the case lid of seal container.The inner chamber of valve seat 10 communicates with the perforate that sealed container covers.Above valve seat, be embedded with a circle Sealing 7, and on Sealing, be placed with membranous disc 6, spring 5 is contained between membranous disc 6 and outer cover 4 tops, marker post 3 is equipped with in center, membranous disc top, the head of marker post stretches out the outer cover center hole, and push up mutually with the blocking device 1 that passes outer cover top sidewall, between marker post and outer cover center hole, seal ring 2 is housed.Sidewall at outer cover has liberation port 9, the angle of the central shaft of liberation port 9 and valve body central shaft is for being less than or equal to 45 degree, and 4 perisporiums of the outer cover above the liberation port are provided with rainproof full skirt 8, this full skirt and outer cover fuse, open downwards, and be less than or equal to 45 degree with the angle of the central shaft of valve body.
During use, take out blocking device 1, with valve seat 10 be welded after the base 11 that sealed container covers screws mutually, this pressure relief valve can use.
When seal container because of being heated or other certain reason pressure when raising, valve base cavity gas, liquid also increase the active force of membranous disc thereupon, should in press when being higher than spring the active force (being the opening force of valve) of membranous disc, membranous disc moves up and breaks away from valve seat, along with interior pressure increases, the gas, liquid release pressure speeds up, just the liberation port from outer cover outwards sprays, meanwhile, the membranous disc pressure spring that moves upward, and marker post pushed away to valve top direction, because seal ring 2 blocks, unlikely downslide is opened to show valve.After discharging with gas, liquid, press in the seal container and reduce, because the restoring force of spring 5 reduces membranous disc and valve seat gap, be discharged into another setting value (power of closing of valve) of spring until interior pressure, valve cuts out again, and whole action is instantaneous to be finished.This pressure relief valve can be worked again and again with the variation of container inner pressure.Because outer cover is provided with full skirt, so can prevent that rainwater from entering, improves its operational safety.
Claims (3)
1. pressure relief valve, it comprises valve seat (10), outer cover (4), valve base cavity communicates with the perforate that sealed container covers, on valve seat, be placed with membranous disc (6), spring (5) is housed between membranous disc and outer cover top, be placed with marker post (3) at the membranous disc center, the head of marker post stretches out the center hole of outer cover, and push up mutually with the blocking device that is positioned at the outer cover top (1), seal ring (2) is housed between marker post and outer cover center hole, on outer cover, be provided with liberation port (9), above liberation port, be provided with the full skirt (8) that fuses with outer cover, it is characterized in that valve seat (10) and be fixed on base (11) that sealed container covers to be threaded.
2. pressure relief valve according to claim 1 is characterized in that the angle of described central shaft that is arranged on the liberation port on the outer cover and valve body central shaft is less than or equal to 45 degree.
3. according to claim 1,2 described pressure relief valves, it is characterized in that the top of liberation port on the described outer cover is provided with downward open full skirt (8), the angle of it and valve body central shaft is less than or equal to 45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02261498 CN2583466Y (en) | 2002-11-11 | 2002-11-11 | Pressure release valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02261498 CN2583466Y (en) | 2002-11-11 | 2002-11-11 | Pressure release valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2583466Y true CN2583466Y (en) | 2003-10-29 |
Family
ID=33728271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02261498 Expired - Fee Related CN2583466Y (en) | 2002-11-11 | 2002-11-11 | Pressure release valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2583466Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838392A (en) * | 2017-04-06 | 2017-06-13 | 南通四方罐式储运设备制造有限公司 | A kind of bulk container or packing material pressure relief device |
-
2002
- 2002-11-11 CN CN 02261498 patent/CN2583466Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838392A (en) * | 2017-04-06 | 2017-06-13 | 南通四方罐式储运设备制造有限公司 | A kind of bulk container or packing material pressure relief device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |