CN219087558U - Protective device and liquefied cooling box - Google Patents
Protective device and liquefied cooling box Download PDFInfo
- Publication number
- CN219087558U CN219087558U CN202222569392.6U CN202222569392U CN219087558U CN 219087558 U CN219087558 U CN 219087558U CN 202222569392 U CN202222569392 U CN 202222569392U CN 219087558 U CN219087558 U CN 219087558U
- Authority
- CN
- China
- Prior art keywords
- protective cover
- pressure
- cover
- protective
- liquefaction
- 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
Landscapes
- Casings For Electric Apparatus (AREA)
Abstract
The application relates to the field of pressure vessels, in particular to a protection device and a liquefaction cold box. The protection device is used for the liquefaction cold box and comprises a protection cover; the protective cover is connected with the box body of the liquefaction cooling box, the liquefaction cooling box is provided with a measuring device, and at least the connection part of the electronic element of the measuring device and the signal transmission cable is positioned in the protective cover; the protective cover is filled with non-combustible gas, and the air pressure in the protective cover is positive pressure. The protection device that this application provided, through setting up the safety cover with liquefaction cold box static production position with outside air isolation, and be filled with non-combustible gas in the safety cover to make the atmospheric pressure in the safety cover be the malleation, can avoid outside air to get into inside the safety cover, thereby reduce combustible gas and electrostatic current contact and take place the risk of explosion, promoted the security of liquefaction cold box.
Description
Technical Field
The application relates to the field of pressure vessels, in particular to a protection device and a liquefaction cold box.
Background
The vacuum gas liquefaction cold box container is generally equipped with a measuring device to monitor the temperature value inside the container and to measure and display the vacuum degree inside the container.
The measuring device is usually composed of two parts, an electronic component and a signal transmission cable. In the working process of the measuring device, static electricity is easy to generate at the joint of the electronic element and the cable. Because the gas liquefaction cold box is in the outside natural environment, contain trace combustible gas in the air, combustible gas exists the risk of explosion with electrostatic current contact, and then leads to the cold box structure to be destroyed.
Disclosure of Invention
An object of the application is to provide a protector and liquefaction cold box for with the junction and the outside air isolation of the measuring device's of liquefaction cold box electronic component and signal transmission cable line, reduce the risk of explosion.
The application provides a protection device for a liquefaction cold box, which comprises a protection cover;
the protective cover is connected with the box body of the liquefaction cooling box, the liquefaction cooling box is provided with a measuring device, and at least the connection part of the electronic element of the measuring device and the signal transmission cable is positioned in the protective cover;
the protective cover is filled with non-combustible gas, and the air pressure in the protective cover is positive pressure.
In the above technical scheme, further, the protective cover is provided with an inflation inlet, and the air source device is communicated with the inflation inlet so as to charge the non-combustible gas into the protective cover;
the non-combustible gas is nitrogen.
In the technical scheme, the device further comprises a pressure reducing valve;
the pressure reducing valve is arranged at the gas charging port, and the gas source device generates high-pressure nonflammable gas which enters the protective cover through the pressure reducing valve.
In the technical scheme, the device further comprises a pressure relief valve;
the protective cover is provided with a deflation port, and the pressure relief valve is arranged at the deflation port;
when the air pressure in the protective cover is larger than the preset pressure, the pressure relief valve is opened to release the air; and when the air pressure in the protective cover is smaller than the preset pressure, the pressure relief valve is closed.
In the above technical scheme, further, the threading hole has been seted up to the safety cover, cable water joint is installed to threading hole department, signal transmission cable conductor runs through cable water joint.
In the above technical solution, further, the protective cover includes a connection flange, a cylinder, and a cover plate;
the cover plate is connected with one end of the cylinder body to seal the end opening of the cylinder body;
the connecting flange is connected with the other end of the cylinder body, and the connecting flange is connected with the box body.
In the above technical scheme, further, the protection cover further comprises a plurality of fasteners, the connecting flange is provided with mounting holes, and the fasteners penetrate through the mounting holes to connect the protection cover with the box body.
In the above technical scheme, further, the connecting flange is provided with a plurality of mounting holes, and the plurality of mounting holes are uniformly distributed;
the plurality of mounting holes are correspondingly provided with the fasteners.
In the above technical scheme, further, the protection cover further comprises a sealing element, one of the connecting flange and the box body is formed with a sealing groove, and the sealing element is filled in the sealing groove.
The application also provides a liquefaction cold box, which comprises the protection device.
Compared with the prior art, the beneficial effects of this application are:
the application provides a protector is used for the liquefaction cold box, and protector includes the safety cover. The protective cover is connected with the box body of the liquefaction cold box, the liquefaction cold box is provided with a measuring device, an electronic element of the measuring device is specifically an aviation plug and is arranged at the top of the liquefaction cold box, one end of a signal transmission cable of the measuring device is connected with the electronic element, the other end of the signal transmission cable is connected with control equipment of the control room, and at least the joint of the electronic element and the signal transmission cable is positioned in the protective cover; the protective cover is filled with non-combustible gas, and the air pressure in the protective cover is positive pressure.
Specifically, the protection cover is connected with the box body of the liquefaction cold box, so that a relatively sealed cover inner space is formed between the protection cover and the box body, the connection part of the electronic element positioned in the cover inner space and the signal transmission cable line can be isolated from the outside air, and the combustible gas contained in the air is prevented from being contacted with electrostatic current.
Further, the non-combustible gas is filled in the space in the cover, and the non-combustible gas is in contact with the electrostatic current, so that the risk of explosion cannot be generated. And the pressure of the non-combustible gas in the protective cover is greater than the atmospheric pressure, even if the sealing is relatively not tight, the pressure in the protective cover is always greater than the external environment pressure, and the generated pressure difference ensures that the external air cannot enter the protective cover, so that the risk of explosion caused by the contact of the combustible gas and electrostatic current is reduced.
The protection device that this application provided, through setting up the safety cover with liquefaction cold box static production position with outside air isolation, and be filled with non-combustible gas in the safety cover to make the atmospheric pressure in the safety cover be the malleation, can avoid outside air to get into inside the safety cover, thereby reduce combustible gas and electrostatic current contact and take place the risk of explosion, promoted the security of liquefaction cold box.
The application also provides a liquefied cold box, which comprises the protection device. Based on the above analysis, the liquefaction cooling tank has the same beneficial effects and is not described herein.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a protective device provided in the present application;
fig. 2 is a schematic structural view of the protective cover provided in the present application.
In the figure: 101-liquefying a cold box; 102-protecting cover; 103-an electronic component; 104-a signal transmission cable; 105-an inflation inlet; 106-a pressure reducing valve; 107-a pressure relief valve; 108-threading holes; 109-waterproof cable connector; 110-a connection flange; 111-a cylinder; 112-cover plate; 113-fasteners; 114-mounting holes; 115-seals; 116-deflation port.
Detailed Description
The following description of the embodiments of the present application will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
Example 1
Referring to fig. 1 and 2, the protection device provided in the present application is used for a liquefaction cooling tank 101, and includes a protection cover 102. The protective cover 102 is connected with a box body of the liquefaction cold box 101, the liquefaction cold box 101 is provided with a measuring device, an electronic element 103 of the measuring device is specifically an aviation plug and is arranged at the top of the liquefaction cold box 101, one end of a signal transmission cable 104 of the measuring device is connected with the electronic element 103, the other end of the signal transmission cable 104 is connected with control equipment of a control room, and at least the joint of the electronic element 103 and the signal transmission cable 104 is positioned in the protective cover 102; the non-flammable gas is filled in the protective cover 102, and the air pressure in the protective cover 102 is positive pressure.
Specifically, the protecting cover 102 is connected with the box body of the liquefaction cooling box 101, so that a relatively sealed cover inner space is formed between the protecting cover 102 and the box body, and the connection part of the electronic element 103 positioned in the cover inner space and the signal transmission cable 104 can be isolated from the outside air, so that the combustible gas contained in the air is prevented from contacting with electrostatic current.
Further, the non-combustible gas is filled in the space in the cover, and the non-combustible gas is in contact with the electrostatic current, so that the risk of explosion cannot be generated. And the pressure of the non-combustible gas in the protective cover 102 is greater than the atmospheric pressure, even if the sealing is relatively not tight, the pressure in the protective cover 102 is always greater than the external environment pressure, and the generated pressure difference makes the external air unable to enter the protective cover 102, so that the risk of explosion caused by the contact of the combustible gas and the electrostatic current is reduced.
The protection device that this application provided, through setting up safety cover 102 with liquefaction cold box 101 static production position with outside air isolation, and be filled with non-combustible gas in the safety cover 102 to make the atmospheric pressure in the safety cover 102 be the malleation, can avoid outside air to get into inside the safety cover 102, thereby reduce the risk that combustible gas and electrostatic current contact and take place the explosion, promoted the security of liquefaction cold box 101.
In an alternative scheme of this embodiment, the protection cover 102 is provided with an air charging port 105, as shown in fig. 2, the air charging port 105 is provided at the top of the protection cover 102, and the air source device is communicated with the air charging port 105 to charge non-combustible gas into the protection cover 102 to form a positive pressure environment.
The non-combustible gas is nitrogen, the nitrogen is colorless and odorless at normal temperature and normal pressure, the chemical property is stable, and the content of the nitrogen in the atmosphere exceeds more than 78%, so that the nitrogen is easy to obtain.
In an alternative to this embodiment, the guard further comprises a pressure relief valve 106; the pressure reducing valve 106 is arranged at the gas charging port 105, and high-pressure non-combustible gas generated by the gas source device enters the protective cover 102 after pressure is reduced by the pressure reducing valve 106, so that the air pressure in the protective cover 102 is under reasonable pressure, and the protective cover 102 is prevented from being damaged due to overlarge pressure in the protective cover 102.
Further, the protection device further comprises a pressure relief valve 107, the protection cover 102 is provided with a deflation port 116, and the pressure relief valve 107 is installed on the deflation port 116. The gas source device continuously blows nitrogen into the protecting cover 102 to form nitrogen protection, when the gas pressure in the protecting cover 102 is larger than or equal to the opening pressure initially set by the pressure relief valve 107, the pressure relief valve 107 is opened to release gas, the pressure in the protecting cover 102 is reduced, and when the gas pressure in the protecting cover 102 is smaller than the opening pressure initially set by the pressure relief valve 107, the pressure relief valve 107 is closed.
In an alternative scheme of this embodiment, as shown in fig. 1, a part of the signal transmission cable 104 is located in the protecting cover 102, a threading hole 108 is formed in the top of the protecting cover 102, a cable waterproof connector 109 is installed at the threading hole 108, the signal transmission cable 104 penetrates through the cable waterproof connector 109, and the cable waterproof connector 109 can fix the signal transmission cable 104 on the protecting cover 102 and can prevent water vapor from entering the protecting cover 102.
Example two
The protection device in the second embodiment is an improvement on the above embodiment, and the technical content disclosed in the above embodiment is not repeated, and the content disclosed in the above embodiment also belongs to the content disclosed in the second embodiment.
Referring to fig. 2, in an alternative to this embodiment, the protective cover 102 includes a connection flange 110, a cylinder 111, and a cover plate 112; a cover plate 112 is connected to one end of the cylinder 111 to seal an end opening of the cylinder 111; the connection flange 110 is connected to the other end of the cylinder 111, and the connection flange 110 is connected to the case.
The cylinder 111 shown in fig. 2 is cylindrical, and the present application is not limited to the illustrated structure, and the cylinder may be provided in a square cylinder or other shape according to actual circumstances. For example, the shape and size of the protective cover can be adjusted specifically according to the actual reserved space of the liquefaction cooling box.
In an alternative to this embodiment, the protecting cover 102 further includes a plurality of fasteners 113, the connecting flange 110 is provided with mounting holes 114, and the fasteners 113 penetrate through the mounting holes 114 to connect the protecting cover 102 with the box body. The fastener 113 is specifically a hexagon bolt, the box body is provided with a blind hole corresponding to the mounting hole 114, and the fastener 113 penetrates through the mounting hole 114 and is fixed in the blind hole.
Preferably, the connecting flange 110 is provided with a plurality of mounting holes 114, the plurality of mounting holes 114 are uniformly distributed on the circumference of the connecting flange 110, and the plurality of mounting holes 114 are correspondingly provided with fasteners 113 to mount the protective cover 102 on the box body.
In an alternative to this embodiment, the protection cover 102 further includes a sealing member 115, and a sealing groove is formed in one of the connection flange 110 and the case body, and the sealing member 115 is filled in the sealing groove. The seal 115 deforms under the compression of the coupling flange 110 and the tank to fill the seal groove, thereby achieving a sealing effect. Alternatively, the seal 115 may be an O-ring or gasket.
Example III
The third embodiment of the present application provides a liquefaction cooling tank, which includes the protection device of any one of the above embodiments, so that the protection device of any one of the above embodiments has all the beneficial technical effects, and is not described herein again.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application. Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the present application and form different embodiments.
Claims (10)
1. A protective device for a liquefaction enclosure, the protective device comprising a protective cover;
the protective cover is connected with the box body of the liquefaction cooling box, the liquefaction cooling box is provided with a measuring device, and at least the connection part of the electronic element of the measuring device and the signal transmission cable is positioned in the protective cover;
the protective cover is filled with non-combustible gas, and the air pressure in the protective cover is positive pressure.
2. The protection device according to claim 1, wherein the protection cover is provided with an inflation port, and an air source device is communicated with the inflation port to inflate the non-combustible gas into the protection cover;
the non-combustible gas is nitrogen.
3. The protective apparatus of claim 2, further comprising a pressure relief valve;
the pressure reducing valve is arranged at the gas charging port, and the gas source device generates high-pressure nonflammable gas which enters the protective cover through the pressure reducing valve.
4. The protective apparatus of claim 2, further comprising a pressure relief valve;
the protective cover is provided with a deflation port, and the pressure relief valve is arranged at the deflation port;
when the air pressure in the protective cover is larger than the preset pressure, the pressure relief valve is opened to release the air; and when the air pressure in the protective cover is smaller than the preset pressure, the pressure relief valve is closed.
5. The protective device according to claim 1, wherein the protective cover is provided with a threading hole, a cable waterproof joint is installed at the threading hole, and the signal transmission cable penetrates through the cable waterproof joint.
6. The protective apparatus of claim 1, wherein the protective cover comprises a connecting flange, a barrel, and a cover plate;
the cover plate is connected with one end of the cylinder body to seal the end opening of the cylinder body;
the connecting flange is connected with the other end of the cylinder body, and the connecting flange is connected with the box body.
7. The protective apparatus of claim 6, wherein the protective cover further comprises a plurality of fasteners, the attachment flange defining mounting holes therethrough for attaching the protective cover to the housing.
8. The protection device according to claim 7, wherein the connecting flange is provided with a plurality of mounting holes, and a plurality of the mounting holes are uniformly distributed;
the plurality of mounting holes are correspondingly provided with the fasteners.
9. The protective apparatus of claim 6, wherein the protective cover further comprises a seal, one of the connecting flange and the case being formed with a seal groove, the seal being filled in the seal groove.
10. A liquefaction cold box comprising a protection device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222569392.6U CN219087558U (en) | 2022-09-27 | 2022-09-27 | Protective device and liquefied cooling box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222569392.6U CN219087558U (en) | 2022-09-27 | 2022-09-27 | Protective device and liquefied cooling box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219087558U true CN219087558U (en) | 2023-05-26 |
Family
ID=86393053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222569392.6U Active CN219087558U (en) | 2022-09-27 | 2022-09-27 | Protective device and liquefied cooling box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219087558U (en) |
-
2022
- 2022-09-27 CN CN202222569392.6U patent/CN219087558U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109559872B (en) | Transformer capsule type oil conservator with pressure compensation function and control monitoring method thereof | |
| CN110187278A (en) | A kind of battery modules experiment case apparatus | |
| CN219087558U (en) | Protective device and liquefied cooling box | |
| CN112326153A (en) | Transformer bushing sealing degree monitoring device and method thereof | |
| CN216871864U (en) | Gas circuit breaker | |
| CN209905582U (en) | Double-layer oil tank leak detection sensor | |
| CN220829750U (en) | Fire detector for sealing box | |
| CN209925601U (en) | Welding water pressure closing cap structure of boiler pressure vessel | |
| CN219496316U (en) | Device based on SF6 gas leakage of infrared sensing on-line monitoring | |
| CN214204897U (en) | Cable joint protective housing and cable joint subassembly | |
| CN218830916U (en) | Protective cover | |
| CN217280880U (en) | Hydrogen detection concentration alarm and fuel cell vehicle | |
| CN221375352U (en) | Improved gas leakage protective cover | |
| CN217109114U (en) | Electrical feed-through device, hoisting device, immersed pump system and low-temperature storage tank | |
| CN220120194U (en) | Ultrahigh-voltage transformer oil level measuring device | |
| CN207472332U (en) | A kind of differential pressure flowmeter | |
| CN214478553U (en) | Fire emergency lighting distribution box with high-temperature protection structure | |
| CN218470658U (en) | SF (sulfur hexafluoride) 6 Gas comprehensive on-line monitoring control device | |
| CN215411973U (en) | Flame detector | |
| CN214589768U (en) | Distribution box for explosion-proof air conditioner | |
| CN221840634U (en) | Explosion-proof manometer with alarming function | |
| CN215265854U (en) | Double-seal leakage alarm metal corrugated oil conservator | |
| CN212851384U (en) | Display for diesel locomotive protection device | |
| CN211676034U (en) | Internal pressure detection device of fire extinguisher | |
| CN210690721U (en) | Anti-condensation fault indicator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |