CN205724440U - A kind of pressure relief device of switch cabinet - Google Patents
A kind of pressure relief device of switch cabinet Download PDFInfo
- Publication number
- CN205724440U CN205724440U CN201620226770.2U CN201620226770U CN205724440U CN 205724440 U CN205724440 U CN 205724440U CN 201620226770 U CN201620226770 U CN 201620226770U CN 205724440 U CN205724440 U CN 205724440U
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- China
- Prior art keywords
- cooling tube
- pressure relief
- pressure
- surge chamber
- edge
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- 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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- 238000001816 cooling Methods 0.000 claims abstract description 46
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
This utility model provides a kind of pressure relief device of switch cabinet, including pressure relief plate, surge chamber, cooling tube, pressure detection mechanism and cooling tube valve, relief hole is offered on the top board of former switch cubicle, the size of pressure relief plate is movably connected on relief hole more than size and the pressure relief plate of relief hole, the edge of surge chamber lower end is fixing with the ceiling edge of former switch cubicle to be connected, multiple venthole is offered on the upper head plate of surge chamber, the air inlet of cooling tube is tightly connected with corresponding venthole, and the gas outlet of cooling tube is arranged on the home that industry specifies；This utility model additionally uses surge chamber and cooling tube, surge chamber ensures that the gas in switch cubicle can have enough spaces to be discharged timely, cooling tube ensures that the gas given off can be directed into safe exhaust position, and during high-temperature gas flows in cooling tube, as energy dissipation and lower the temperature, it is to avoid high-temperature gas is accidentally injured the situation of staff and is occurred.
Description
Technical field
This utility model relates to cabinet pressure release field, particularly relates to a kind of pressure relief device of switch cabinet.
Background technology
The problem of high-temperature gas pressure release when cabinet the most all take into account fault, such as, the top of the traditional handcart room in closed high-voltage switch cabinet, bus-bar room and cable vault is equipped with pressure relief device, this pressure relief device is typically connected with the gases at high pressure release channel in cabinet, its structure is a rectangular metal louvres plate, side iron screw is fixed, and opposite side nylon staple is fixed；In actual motion, shutter board can only meet the effect of each chamber ventilated heat radiation, but is difficult to meet the release of false pressure, and when breaking down in cabinet, shutter board deformation is opened, and release pressure and vented gasses, after pressure release, top board is scrapped；When fault is serious, owing to switch cubicle safe pressure relief device is not smooth, high temperature gas flow is discharged by high-voltage board front, the most also can cause the serious accident of operator's serious burn.
Utility model content
The purpose of this utility model is to provide a kind of pressure relief device of switch cabinet, ensure during the pressure overload in switch cubicle that switch cubicle can pressure release in time, and it is discharged into home after being cooled down by the high temperature and high pressure gas discharged, it is to avoid unnecessary economic loss and casualties occur.
To achieve these goals, this utility model is by the following technical solutions:
A kind of pressure relief device of switch cabinet, including pressure relief plate, surge chamber, cooling tube, pressure detection mechanism and cooling tube valve, relief hole is offered on the top board of former switch cubicle, the size of pressure relief plate is movably connected on relief hole more than size and the pressure relief plate of relief hole, pressure relief plate is used for pressure release, surge chamber uses the barrel-like structure of lower ending opening, the edge of surge chamber lower end is fixing with the ceiling edge of former switch cubicle to be connected, multiple venthole is offered on the upper head plate of surge chamber, cooling tube is also adopted by many, the air inlet of cooling tube is tightly connected with corresponding venthole, the gas outlet of cooling tube is arranged on outside switch cubicle；Described pressure detection mechanism includes pressure transducer and microprocessor, pressure transducer is fixedly installed on surge chamber inwall, the outfan of pressure transducer is connected with the input of microprocessor, cooling tube valve uses electrically operated valve, the number of electrically operated valve is corresponding with the number of cooling tube, electrically operated valve is arranged at the air inlet of cooling tube, and the end that controls of electrically operated valve is connected with the outfan of microprocessor by electrically operated valve control circuit.
One end of described pressure relief plate is hinged with the edge of relief hole, the other end of pressure relief plate is connected with the edge of relief hole by bolt, the screw rod of bolt sequentially passes through the edge of pressure relief plate and relief hole, the tail end of screw rod is arranged with nut, and the screw rod between nut and relief hole edge is also arranged with spring.
It is arranged with instlated tubular outside described cooling tube.
The number of described venthole is no less than four.
Described electrically operated valve uses electrical ball valve.
The beneficial effects of the utility model:
Pressure relief device of switch cabinet simple in construction described in the utility model, it is easy to install and safeguard；This utility model additionally uses surge chamber and cooling tube, surge chamber ensures that the gas in switch cubicle can have enough spaces to be discharged timely, cooling tube ensures that the gas given off can be directed into safe exhaust position, and during high-temperature gas flows in cooling tube, as energy dissipation and lower the temperature, it is to avoid high-temperature gas is accidentally injured the situation of staff and is occurred.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of pressure relief device of switch cabinet described in the utility model.
Detailed description of the invention
As it is shown in figure 1, pressure relief device of switch cabinet described in the utility model, including pressure relief plate 2, surge chamber 3, cooling tube 5, pressure detection mechanism and cooling tube valve 6；
Wherein, relief hole is offered on the top board of switch cubicle 1, in order to ensure that pressure relief plate 2 can be completely covered relief hole, the size of pressure relief plate 2 should be greater than the size of relief hole, the air pressure that pressure relief plate 2 is movably connected on relief hole and pressure relief plate 2 transships in releasing switch cubicle 1；The mode that pressure relief plate 2 is flexibly connected with relief hole is that one end of pressure relief plate 2 is hinged with the edge of relief hole, the other end of pressure relief plate 2 is connected with the top board of relief hole edge by bolt 7, the screw rod of bolt 7 sequentially passes through pressure relief plate 2 and the top board of relief hole edge, the tail end of screw rod is arranged with nut 8, spring 9 also it is arranged with on screw rod between nut 8 and relief hole edge, therefore, when the air pressure in switch cubicle 1 is excessive, high temperature and high pressure gas just can wash pressure relief plate 2 easily open, it is ensured that the air pressure in switch cubicle 1 is maintained in safety range；Meanwhile, spring 9 also protects pressure relief plate 2 to the cushioning effect of high temperature and high pressure gas pressure, it is ensured that pressure relief plate 2 will not damage because of the fierce impact by high temperature and high pressure gas；
Surge chamber 3 uses the barrel-like structure of lower ending opening, and the edge of surge chamber 3 lower end is fixing with the edge of former switch cubicle 1 top board to be connected, and the fixing mode connected can use welding or be spirally connected；Offering multiple venthole on the upper head plate of surge chamber 3, in order to ensure that gas can go out surge chamber 3 smoothly, the number of venthole should be no less than four；
In order to ensure that the high temperature and high pressure gas gone out from switch cubicle 1 will not accidentally injure staff, pressure relief device of switch cabinet described in the utility model additionally uses cooling tube 5, and the number of cooling tube 5 is identical with the number of venthole；The air inlet of cooling tube 5 is tightly connected with corresponding venthole, and the gas outlet of cooling tube 5 is arranged at the home that the outside industry of switch cubicle specifies；Accidentally injuring staff to prevent cooling tube 5 surface from heating up, the outer surface of cooling tube 5 is also arranged with instlated tubular；
Described pressure detection mechanism includes that pressure transducer 4 and microprocessor, pressure transducer 4 are fixedly installed on surge chamber 3 inwall, and the outfan of pressure transducer 4 is connected with the input of microprocessor；Described cooling tube valve 6 uses electrically operated valve, and the number of electrically operated valve is corresponding with the number of cooling tube 5, and electrically operated valve is arranged at the air inlet of cooling tube 5, and electrically operated valve is for controlling the break-make of cooling tube 5；The end that controls of electrically operated valve is connected with the outfan of microprocessor by electrically operated valve control circuit；Preferred version is that electrically operated valve uses electrical ball valve.
When using pressure relief device of switch cabinet described in the utility model, if the air pressure in switch cubicle 1 is too high, then the high temperature and high pressure gas in switch cubicle 1 will wash pressure relief plate 2 open, enter in surge chamber 3, prevent situation that is too high due to the air pressure in switch cubicle 1 and that cause electrical equipment to damage even switch cubicle 1 blast from occurring；When the pressure during pressure transducer 4 detects surge chamber 3 raises, pressure transducer 4 sends pressure overload signal to microprocessor, microprocessor just can control electrical ball valve by electrically operated valve control circuit open that (opening and closing utilizing pressure transducer 4 and microprocessor to control electrically operated valve belongs to the existing mature technology of this area, here repeat no more), then the gas in surge chamber 3 just can be discharged into home by cooling tube 5；When high temperature and high pressure gas flows in cooling tube 5, gas energy loss can be caused due to impact etc., so when high temperature and high pressure gas goes out cooling tube 5, the temperature of gas will decline, prevent high-temperature gas from accidentally injuring staff.
The beneficial effect of this practicality:
Pressure relief device of switch cabinet simple in construction described in the utility model, it is easy to install and safeguard；This utility model additionally uses surge chamber 3 and cooling tube 5, surge chamber 3 ensures that the gas in switch cubicle 1 can have enough spaces to be discharged timely, cooling tube 5 ensures that the gas given off can be directed into safe exhaust position, and during high-temperature gas flows in cooling tube 5, as energy dissipation and lower the temperature, it is to avoid high-temperature gas is accidentally injured the situation of staff and is occurred.
Claims (5)
1. a pressure relief device of switch cabinet, it is characterized in that: include pressure relief plate, surge chamber, cooling tube, pressure detection mechanism and cooling tube valve, relief hole is offered on the top board of former switch cubicle, the size of pressure relief plate is movably connected on relief hole more than size and the pressure relief plate of relief hole, pressure relief plate is used for pressure release, surge chamber uses the barrel-like structure of lower ending opening, the edge of surge chamber lower end is fixing with the ceiling edge of former switch cubicle to be connected, multiple venthole is offered on the upper head plate of surge chamber, cooling tube is also adopted by many, the air inlet of cooling tube is tightly connected with corresponding venthole, the gas outlet of cooling tube is arranged on outside switch cubicle；Described pressure detection mechanism includes pressure transducer and microprocessor, pressure transducer is fixedly installed on surge chamber inwall, the outfan of pressure transducer is connected with the input of microprocessor, cooling tube valve uses electrically operated valve, the number of electrically operated valve is corresponding with the number of cooling tube, electrically operated valve is arranged at the air inlet of cooling tube, and the end that controls of electrically operated valve is connected with the outfan of microprocessor by electrically operated valve control circuit.
A kind of pressure relief device of switch cabinet the most according to claim 1, it is characterized in that: one end of described pressure relief plate is hinged with the edge of relief hole, the other end of pressure relief plate is connected with the edge of relief hole by bolt, the screw rod of bolt sequentially passes through the edge of pressure relief plate and relief hole, the tail end of screw rod is arranged with nut, and the screw rod between nut and relief hole edge is also arranged with spring.
A kind of pressure relief device of switch cabinet the most according to claim 1 and 2, it is characterised in that: it is arranged with instlated tubular outside described cooling tube.
A kind of pressure relief device of switch cabinet the most according to claim 1 and 2, it is characterised in that: the number of described venthole is no less than four.
A kind of pressure relief device of switch cabinet the most according to claim 1 and 2, it is characterised in that: described electrically operated valve uses electrical ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620226770.2U CN205724440U (en) | 2016-03-23 | 2016-03-23 | A kind of pressure relief device of switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620226770.2U CN205724440U (en) | 2016-03-23 | 2016-03-23 | A kind of pressure relief device of switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205724440U true CN205724440U (en) | 2016-11-23 |
Family
ID=57314601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620226770.2U Expired - Fee Related CN205724440U (en) | 2016-03-23 | 2016-03-23 | A kind of pressure relief device of switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205724440U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898954A (en) * | 2017-04-24 | 2017-06-27 | 武汉大学 | A kind of pressure relief device of switch cabinet |
| CN109470402A (en) * | 2018-12-03 | 2019-03-15 | 三峡大学 | Medium Voltage Switchgear internal short-circuit arcing pressure effect indirect type measuring device |
-
2016
- 2016-03-23 CN CN201620226770.2U patent/CN205724440U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898954A (en) * | 2017-04-24 | 2017-06-27 | 武汉大学 | A kind of pressure relief device of switch cabinet |
| CN109470402A (en) * | 2018-12-03 | 2019-03-15 | 三峡大学 | Medium Voltage Switchgear internal short-circuit arcing pressure effect indirect type measuring device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 Termination date: 20190323 |