CN210739480U - Novel pressure relief valve - Google Patents
Novel pressure relief valve Download PDFInfo
- Publication number
- CN210739480U CN210739480U CN201921527328.3U CN201921527328U CN210739480U CN 210739480 U CN210739480 U CN 210739480U CN 201921527328 U CN201921527328 U CN 201921527328U CN 210739480 U CN210739480 U CN 210739480U
- Authority
- CN
- China
- Prior art keywords
- pressure relief
- novel pressure
- relief valve
- valve body
- valve
- 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.)
- Active
Links
Images
Abstract
The utility model discloses a novel pressure relief valve, which comprises a valve body and a valve seat arranged at the bottom of the valve body; a pressure release assembly is arranged in the valve body; the valve body comprises an accommodating part and a ventilation part, and the ventilation part is connected above the accommodating part and communicated with the accommodating part; the side of the ventilation part is provided with a leakage test hole, a sleeve cap is sleeved on the leakage test hole, and a sealing gasket is arranged between the leakage test hole and the sleeve cap. After installing this novel pressure release valve on the transformer, connect the gas pipe and try the small opening, can carry out the gas tightness test to transformer, this novel pressure release valve and transformer and novel pressure release valve's junction simultaneously, it is simple convenient.
Description
Technical Field
The utility model relates to a transformer technology, especially a novel pressure relief valve.
Background
For a fully sealed oil filled transformer, a pressure relief valve is typically installed to protect the tank. When the oil immersed transformer has a fault in the operation process, a part of transformer oil is vaporized due to overheating of the coil, the pressure in the oil tank of the transformer is rapidly increased, and the pressure release valve rapidly acts to deflate the oil tank, so that the oil tank is protected from deformation or burst. However, when the tightness test is performed on the transformer, the tightness of the pressure relief valve and the tightness of the connection between the pressure relief valve and the oil level gauge cannot be synchronously tested if the tightness test is performed on the installation hole of the pressure relief valve after the pressure relief valve is removed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a novel pressure release valve.
The utility model provides a technical scheme that its problem adopted is:
a novel pressure relief valve comprises a valve body and a valve seat arranged at the bottom of the valve body; a pressure release assembly is arranged in the valve body; the valve body comprises an accommodating part and a ventilation part, and the ventilation part is connected above the accommodating part and communicated with the accommodating part; the side of the ventilation part is provided with a leakage test hole, a sleeve cap is sleeved on the leakage test hole, and a sealing gasket is arranged between the leakage test hole and the sleeve cap.
Further, the leakage test hole protrudes to the outer side direction of the ventilation part; the leakage testing hole is provided with an external thread and is in threaded connection with the sleeve cap.
Further, the valve seat is provided with a through vent hole.
Further, the pressure relief assembly includes a diaphragm disc, a post, and a spring; the membrane disc covers the vent hole; one end of the upright post is connected with the membrane disc, and the other end of the upright post is propped against the top of the ventilation part; the spring is sleeved on the upright post and is arranged between the membrane disc and the ventilation part.
Furthermore, an alarm is arranged on the side wall of the accommodating part; the top of the ventilation part is provided with a switch part for triggering the alarm, and the switch part is connected with the alarm; the switch part is positioned above the other end of the upright post.
Further, a microswitch is arranged in the switch part.
Specifically, the alarm is a buzzer.
The novel pressure relief valve has at least the following beneficial effects: after installing this novel pressure release valve on the transformer, remove the cover cap on the leakage testing hole, link the trachea with the leakage testing hole, can test the gas tightness of transformer, this novel pressure release valve and transformer and this novel pressure release valve junction simultaneously, it is simple convenient, avoid pressure release valve self or junction to have the unable detection of gas tightness problem.
Drawings
The invention is further described with reference to the following figures and examples.
Fig. 1 is a structural diagram of a novel pressure relief valve according to an embodiment of the present invention.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1, the embodiment of the present invention provides a novel pressure relief valve, which includes a valve body 100 and a valve seat 200 installed at the bottom of the valve body 100; a pressure release assembly 300 is arranged in the valve body 100; the valve body 100 includes an accommodating portion 110 and a vent portion 120, the vent portion 120 being connected above the accommodating portion 110 and communicating with the accommodating portion 110; the side of the ventilation part 120 is provided with a leakage test hole 121, a sleeve cap 122 is sleeved on the leakage test hole 121, and a sealing gasket 123 is arranged between the leakage test hole 121 and the sleeve cap 122.
In this embodiment, after installing this novel pressure release valve on the transformer, remove the cap 122 on the leakage testing hole 121, link leakage testing hole 121 with the trachea, can detect the gas tightness of transformer, this novel pressure release valve and transformer and this novel pressure release valve junction simultaneously, it is simple convenient, avoid pressure release valve self or junction to have the unable detection of gas tightness problem. After the airtightness detection is completed, the sealing gasket 123 is placed on the leakage test hole 121 and the sleeve cap 122 is covered, so that sealing is realized. In addition, the sidewall of the receiving portion 110 is curved to facilitate the pressure distribution. The diameter of the venting portion 120 is smaller than the diameter of the receiving portion 110.
Further, the leakage test hole 121 protrudes outward of the vent portion 120; specifically, the leak test hole 121 and the vent portion 120 are perpendicular to each other. In other embodiments, the leakage test holes 121 may be upwardly raised relative to the vent 120 at an angle ranging from 0 to 30 degrees. The leakage testing hole 121 is provided with external threads, and the leakage testing hole 121 is in threaded connection with the sleeve cap 122. And the tracheal mouth of pipe also can be through installing the thread bush, realize the threaded connection mode with the leak test hole 121 matches.
In another embodiment, the valve seat 200 is provided with a vent hole 210 therethrough. Specifically, the pressure relief assembly 300 includes a membrane disc 310, a post 320, and a spring 330; the membrane disc 310 covers the vent holes 210; one end of the upright post 320 is connected with the membrane disc 310, and the other end of the upright post 320 is pressed against the top of the vent part 120; the spring 330 is sleeved on the post 320 and is disposed between the membrane disc 310 and the vent 120.
In this embodiment, the valve seat 200 is provided with a boss 220 and a vent hole 210 therethrough, and the boss 220 is advantageous for enlarging the area of the membrane disc 310 on which the pressure in the transformer tank acts. When the pressure of the gas generated by overheating in the transformer oil tank on the membrane disc 310 is greater than the pressure of the spring 330, the membrane disc 310 moves upwards and drives the upright post 320 to move upwards, the membrane disc 310 rapidly pops up and jumps to the limited position of the spring 330, and the transformer oil is discharged. The pressure in the transformer tank is rapidly reduced to a normal value, the membrane disc 310 is reset under the action of the spring 330, and the novel release valve is sealed again to play a role in protecting the transformer tank.
In another embodiment, the side wall of the accommodating part 110 is provided with an alarm 500; the top of the ventilation part 120 is provided with a switch part 400 for triggering the alarm 500, and the switch part 400 is electrically connected with the alarm 500 through a lead; the switching section 400 is located above the other end of the pillar 320. Specifically, a microswitch 410 is provided in the switch section 400. The alarm 500 is a buzzer. The wires extend in close contact with the inner wall of the valve body 110 and are protected by a heat insulating sleeve.
In this embodiment, the membrane 310 is lifted by the pressure of the transformer tank, so that the post 320 triggers the micro switch 410 in the switch part 400 to sound the buzzer, thereby reminding the engineer to deal with the fault of the transformer tank in time.
Above, only the preferred embodiment of the present invention has been described, the present invention is not limited to the above embodiment, and the technical effects of the present invention can be achieved by the same means, which all belong to the protection scope of the present invention.
Claims (7)
1. The novel pressure relief valve is characterized by comprising a valve body and a valve seat arranged at the bottom of the valve body; a pressure release assembly is arranged in the valve body; the valve body comprises an accommodating part and a ventilation part, and the ventilation part is connected above the accommodating part and communicated with the accommodating part; the side of the ventilation part is provided with a leakage test hole, a sleeve cap is sleeved on the leakage test hole, and a sealing gasket is arranged between the leakage test hole and the sleeve cap.
2. The novel pressure relief valve according to claim 1, wherein said leak test hole protrudes in a direction outside said vent portion; the leakage testing hole is provided with an external thread and is in threaded connection with the sleeve cap.
3. A novel pressure relief valve as claimed in claim 1 or claim 2 wherein said valve seat is provided with a vent hole therethrough.
4. The novel pressure relief valve according to claim 3 wherein said pressure relief assembly comprises a diaphragm disc, a post and a spring; the membrane disc covers the vent hole; one end of the upright post is connected with the membrane disc, and the other end of the upright post is propped against the top of the ventilation part; the spring is sleeved on the upright post and is arranged between the membrane disc and the ventilation part.
5. The novel pressure relief valve according to claim 4 wherein said side wall of said receptacle is provided with an alarm; the top of the ventilation part is provided with a switch part for triggering the alarm, and the switch part is connected with the alarm; the switch part is positioned above the other end of the upright post.
6. The novel pressure relief valve according to claim 5 wherein said switching section is provided with a microswitch.
7. The novel pressure relief valve according to claim 5 wherein said alarm is a buzzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921527328.3U CN210739480U (en) | 2019-09-12 | 2019-09-12 | Novel pressure relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921527328.3U CN210739480U (en) | 2019-09-12 | 2019-09-12 | Novel pressure relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210739480U true CN210739480U (en) | 2020-06-12 |
Family
ID=70985556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921527328.3U Active CN210739480U (en) | 2019-09-12 | 2019-09-12 | Novel pressure relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210739480U (en) |
-
2019
- 2019-09-12 CN CN201921527328.3U patent/CN210739480U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9153800B2 (en) | Battery cover provided with fire extinguishing function | |
| CN109027376B (en) | Safety monitoring system for gas use | |
| CN108612890B (en) | Safety monitoring system of household gas pipeline | |
| CN210739480U (en) | Novel pressure relief valve | |
| CN206574778U (en) | Battery anti-explosion valve, secondary cell cap assembly and secondary cell | |
| JP4288824B2 (en) | Battery plug for storage battery | |
| KR101561638B1 (en) | Transformer Explosion Prevention and damage detection device | |
| CN105370916B (en) | A kind of gas emergency cut-off valve | |
| CN208719497U (en) | A kind of explosion-proof valve for inflating spool, fast aeration detection box leakproofness | |
| CN201804935U (en) | Battery safety valve | |
| US6668658B2 (en) | Pressure sensor module | |
| CN206893534U (en) | A kind of single pressure pressure switch | |
| JP2010034400A (en) | Electronic apparatus | |
| JP4393484B2 (en) | Gas stopper protective cap | |
| US7327244B2 (en) | Valve device with pressure alarm for tire | |
| CN201875876U (en) | Isolation safe electric water heater | |
| CN220854790U (en) | Gas path sealing type gas detector | |
| CN2355170Y (en) | Multifunctioanl high vacuum valve | |
| JP2007005034A (en) | Temperature/pressure protective device | |
| CN215004071U (en) | Improved explosion-proof pressure transmitter | |
| JP2020102541A (en) | Pressure release valve | |
| CN218067873U (en) | Integrated trace oxygen measuring device | |
| CN218828953U (en) | Explosion-proof terminal box convenient to overhaul | |
| CN114542972A (en) | High-pressure cylinder valve and gas cylinder | |
| CN220912411U (en) | Water level detection device, toilet core and toilet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |