CN205724440U - A switchgear pressure relief device - Google Patents
A switchgear pressure relief device 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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- pressure relief
- pressure
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Abstract
本实用新型提供了一种开关柜泄压装置，包括泄压板、缓冲室、冷却管、压力检测机构和冷却管阀门，原开关柜的顶板上开设有泄压孔，泄压板的大小大于泄压孔的大小且泄压板活动连接在泄压孔上，缓冲室下端的边缘与原开关柜的顶板边缘固定连接，缓冲室的上端板上开设有多个出气孔，冷却管的进气口与对应的出气孔密封连接，冷却管的出气口设置在行业规定的安全位置；本实用新型还采用了缓冲室和冷却管，缓冲室保证开关柜内的气体能够有足够的空间得到及时的排放，冷却管保证排放出的气体能够被引导到安全的排放位置，且高温气体在冷却管中流动的过程中，也会因为能量逸散而降温，避免了高温气体误伤工作人员的情况发生。
The utility model provides a pressure relief device for a switchgear, which comprises a pressure relief plate, a buffer chamber, a cooling pipe, a pressure detection mechanism and a cooling pipe valve. A pressure relief hole is opened on the top plate of the original switchgear, and the size of the pressure relief plate is larger than the pressure relief plate. The size of the hole and the pressure relief plate are movably connected to the pressure relief hole. The edge of the lower end of the buffer chamber is fixedly connected with the edge of the top plate of the original switch cabinet. There are multiple air outlets on the upper end plate of the buffer chamber. The air inlet of the cooling pipe is connected to the corresponding The air outlet hole is sealed and connected, and the air outlet of the cooling pipe is set at a safe position specified by the industry; the utility model also adopts a buffer room and a cooling pipe, and the buffer room ensures that the gas in the switch cabinet can have enough space to be discharged in time, cooling The pipe ensures that the discharged gas can be guided to a safe discharge position, and when the high-temperature gas flows in the cooling pipe, it will also cool down due to energy dissipation, avoiding the accidental injury of the staff by the high-temperature gas.
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 switchgear pressure relief device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620226770.2U CN205724440U (en) | 2016-03-23 | 2016-03-23 | A switchgear pressure relief device |
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 switchgear pressure relief device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205724440U (en) |
Cited By (3)
| 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 | Indirect measuring device for short-circuit arc pressure effect inside medium voltage switchgear |
| CN113856107A (en) * | 2021-11-08 | 2021-12-31 | 郑韶华 | Automatic fire extinguishing system for lithium battery |
-
2016
- 2016-03-23 CN CN201620226770.2U patent/CN205724440U/en not_active Expired - Fee Related
Cited By (3)
| 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 | Indirect measuring device for short-circuit arc pressure effect inside medium voltage switchgear |
| CN113856107A (en) * | 2021-11-08 | 2021-12-31 | 郑韶华 | Automatic fire extinguishing system for lithium battery |
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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 |
Granted publication date: 20161123 Termination date: 20190323 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |