CN220695011U - Pressure relief structure of electric heating container cover - Google Patents
Pressure relief structure of electric heating container cover Download PDFInfo
- Publication number
- CN220695011U CN220695011U CN202322303705.8U CN202322303705U CN220695011U CN 220695011 U CN220695011 U CN 220695011U CN 202322303705 U CN202322303705 U CN 202322303705U CN 220695011 U CN220695011 U CN 220695011U
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- Prior art keywords
- pressure
- pressure relief
- container
- relief device
- air inlet
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- 238000005485 electric heating Methods 0.000 title abstract description 11
- 238000007789 sealing Methods 0.000 claims description 9
- 239000013013 elastic material Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000004880 explosion Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000007774 longterm Effects 0.000 description 3
- 229920000295 expanded polytetrafluoroethylene Polymers 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
Landscapes
- Pressure Vessels And Lids Thereof (AREA)
- Cookers (AREA)
Abstract
The utility model discloses a pressure relief structure of an electric heating container cover, which can prevent explosion, avoid overlarge pressure in the container and has better safety, and comprises a cover body which is covered on the container and is provided with a pressure relief channel, wherein a first pressure relief device and a second pressure relief device are arranged between the pressure relief channel and the interior of the container; when the pressure in the container is not greater than a preset value, the second pressure relief device is kept in a closed state, and at the moment, the pressure is relieved by the exhaust of the first pressure relief device; when the pressure in the container is greater than a preset value, the second pressure relief device is opened to relieve the pressure of the exhaust gas.
Description
Technical Field
The utility model belongs to the technical field of electric heating containers, and particularly relates to a pressure relief structure of an electric heating container cover.
Background
At present, a closed heating container in the prior art mostly adopts a waterproof breathable film pressure relief mode, so that the pressure in the container is discharged through the breathable film in a pressure reducing mode, and meanwhile, the characteristics of the waterproof breathable film are utilized to ensure that water cannot be discharged; however, long-term use and tests show that after the product is used for a long time, the surface of the waterproof breathable film is inevitably polluted to block the exhaust hole, so that the pressure of the heating container cannot be effectively removed, and the safety risks such as the increase of the yield of the steam explosion in the container or the splashing of the hot water caused by the rapid outward displacement of the pressure in the container during the uncovering of the cover can be caused.
Disclosure of Invention
The utility model aims to provide a pressure relief structure of an electric heating container cover, which can prevent explosion, avoid overlarge pressure in the container and has better safety.
In order to achieve the above purpose, the present utility model adopts the following technical scheme.
The pressure relief structure of the electric heating container cover comprises a cover body which is covered on a container and is provided with a pressure relief channel, and a first pressure relief device and a second pressure relief device are arranged between the pressure relief channel and the interior of the container; when the pressure in the container is not greater than a preset value, the second pressure relief device is kept in a closed state, and at the moment, the pressure is relieved by the exhaust of the first pressure relief device; when the pressure in the container is greater than a preset value, the second pressure relief device is opened to relieve the pressure of the exhaust gas.
Preferably, the pressure release channel comprises a first air inlet and a second air inlet, the first pressure release device is arranged on the first air inlet, and the second pressure release device is arranged on the second air inlet.
Preferably, the pressure release channel comprises a first vent hole and a second vent hole which are communicated with the outside, the first pressure release device is arranged at the first vent hole, and the second pressure release device is arranged at the second vent hole.
Preferably, the first pressure relief device is a waterproof breathable membrane.
Preferably, the second pressure relief device is a sealing plug made of elastic material and is clamped in the second air inlet hole; when the pressure in the container is larger than a preset value, the sealing plug is extruded by the steam pressure to deform and can fall off from the second air inlet hole to carry out air exhaust and pressure relief.
Compared with the prior art, the utility model has the beneficial effects that: by adopting the technical scheme, when the pressure in the container is greater than a preset value, the first pressure relief device and the second pressure relief device can be opened to carry out air exhaust and pressure relief, so that safety accidents such as explosion and the like can be avoided, and the use safety is ensured; the waterproof and breathable film is adopted by the first pressure relief device, so that the air exhaust and pressure relief can be realized while water is effectively prevented from being discharged, the sealed plug is suitable to be used in a sealed electric heating container, the cost is very low, the structure is simple, and the pressure relief device is suitable for popularization.
Drawings
Fig. 1 is a schematic cross-sectional structure of embodiment 1 of the present utility model.
Fig. 2 is an enlarged view at a of the second pressure relief device of fig. 1 in a closed state.
Fig. 3 is an enlarged view at a of the second pressure relief device of fig. 1 in an open state.
Fig. 4 is a schematic cross-sectional structure of embodiment 2 of the present utility model.
Fig. 5 is a schematic sectional view of the structure of fig. 4 taken along the direction B.
Description of the embodiments
In order to make the technical scheme of the present utility model clearer, the present utility model will be described in detail with reference to fig. 1 to 5. It should be understood that the detailed description and specific examples, while indicating the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.
Example 1
The pressure release structure of the electric heating container cover, as shown in fig. 1-3, comprises a cover body 1 covered on the container and provided with a pressure release channel, wherein the pressure release channel is provided with an exhaust hole which is communicated with the outside, and two air inlets which are communicated with the inner cavity of the container are respectively a first air inlet 11 and a second air inlet 12, and the first air inlet 11 and the second air inlet 12 can be arranged on the bottom surface or the side surface of the cover body 1; the first air inlet hole 11 is provided with a first pressure relief device 2 which can be a waterproof and breathable film made of ePTFE, can release air and pressure, but can prevent water from being discharged, and the material is an existing material and is not described herein; normally, the steam pressure in the container can be discharged from the first pressure relief device 2 to the outside through the pressure relief channel; after long-term use, the surface of the waterproof and breathable film used by the first pressure relief device 2 is covered by dirt and the air hole is blocked so that the air hole cannot discharge and relieve the pressure of steam in the container, and further explosion risks are caused, the second pressure relief device 3 is further arranged on the second air inlet hole 12, in order to control the cost, the second pressure relief device 3 is clamped in the second air inlet hole 12 by adopting a sealing plug made of an elastic material, and when the waterproof and breathable film fails due to abnormality, as shown in fig. 3, the sealing plug of the second pressure relief device 3 is extruded to deform when the steam pressure in the container exceeds a preset value, so that the steam falls off from the second air inlet hole 12, and the inner cavity of the container is communicated with the outside through the second air inlet hole 12 and the pressure relief channel for pressure relief; therefore, safety accidents caused by overlarge pressure inside the container are prevented, and safety is guaranteed.
Example 2
The pressure release structure of the electric heating container cover, as shown in fig. 4-5, comprises a cover body 1 covered on the container and provided with a pressure release channel, wherein the pressure release channel is provided with an air inlet communicated with the inner cavity of the container, and two air exhaust holes which are communicated with the outside are respectively a first air exhaust hole 13 and a second air exhaust hole 14, and the first air exhaust hole 13 and the second air exhaust hole 14 can be arranged on the top surface or the side surface of the cover body 1; the first exhaust hole 13 is provided with a waterproof and breathable film 2 (a first pressure relief device), and the material of the waterproof and breathable film can be ePTFE, so that the pressure can be relieved, but water can be prevented from being discharged, and the material is an existing material and is not repeated here; normally, the vapor pressure in the container can be discharged from the waterproof and breathable film 2 to the outside; after long-term use, the surface of the waterproof and breathable film 2 is covered by dirt and the air holes are blocked, so that the air holes cannot discharge and relieve the pressure of steam in the container, and explosion risks are further caused, a second pressure relief device 3 is further arranged on the second air hole 12, in order to control cost, the second pressure relief device 3 is clamped in the second air hole 12 by adopting a sealing plug made of an elastic material, and when the waterproof and breathable film 2 fails abnormally, the steam pressure in the container exceeds a preset value excessively, the sealing plug of the second pressure relief device 3 is extruded to deform so that the steam drops from the second air hole 12, and the inner cavity of the container is communicated with the outside through the second air hole 12 and a pressure relief channel to relieve the pressure; therefore, safety accidents caused by overlarge pressure inside the container are prevented, and safety is guaranteed.
In the two embodiments, when the sealing plug of the second pressure relief device 3 is extruded and separated, it is indicated that the electric heating container cover has problems and needs to be returned to the factory for maintenance; of course, the second pressure relief device 3 may also adopt a one-way valve capable of bearing a preset pressure value, and the one-way valve is closed when the pressure in the container is not greater than the preset value, and is opened when the pressure in the container is greater than the preset value; meanwhile, the fixing mode of the waterproof and breathable film 2 adopts a detachable structure, and when dirt blocking occurs, the waterproof and breathable film 2 can be detached and cleaned or replaced.
Claims (5)
1. The utility model provides a pressure release structure of electrical heating container lid, includes lid (1) that the lid closes and is equipped with pressure release passageway on the container, its characterized in that: a first pressure relief device (2) and a second pressure relief device (3) are arranged between the pressure relief channel and the interior of the container; when the pressure in the container is not greater than a preset value, the second pressure relief device (3) is kept in a closed state, and at the moment, the pressure is relieved by the exhaust of the first pressure relief device (2); when the pressure in the container is larger than a preset value, the second pressure relief device (3) is opened to relieve the pressure by exhaust.
2. The pressure relief structure for an electrically heated vessel cover as in claim 1, wherein: the pressure release channel comprises a first air inlet hole (11) and a second air inlet hole (12), the first pressure release device (2) is arranged on the first air inlet hole (11), and the second pressure release device (3) is arranged on the second air inlet hole (12).
3. The pressure relief structure for an electrically heated vessel cover as in claim 1, wherein: the pressure release channel comprises a first exhaust hole (13) and a second exhaust hole (14) which are communicated with the outside, the first pressure release device (2) is arranged at the first exhaust hole (13), and the second pressure release device (3) is arranged at the second exhaust hole (14).
4. A pressure relief structure for an electrically heated vessel cover as claimed in any one of claims 1 to 3, wherein: the first pressure relief device (2) is a waterproof breathable film.
5. The pressure relief structure for an electrically heated vessel cover as in claim 4 wherein: the second pressure relief device (3) is a sealing plug made of elastic material and is clamped in the second air inlet hole (12); when the pressure in the container is larger than a preset value, the sealing plug is extruded by the steam pressure to deform and can fall off from the second air inlet hole (12) to carry out air exhaust and pressure relief.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322303705.8U CN220695011U (en) | 2023-08-28 | 2023-08-28 | Pressure relief structure of electric heating container cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322303705.8U CN220695011U (en) | 2023-08-28 | 2023-08-28 | Pressure relief structure of electric heating container cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220695011U true CN220695011U (en) | 2024-04-02 |
Family
ID=90443053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322303705.8U Active CN220695011U (en) | 2023-08-28 | 2023-08-28 | Pressure relief structure of electric heating container cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220695011U (en) |
-
2023
- 2023-08-28 CN CN202322303705.8U patent/CN220695011U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |