CN108110643A - Explosion-proof positive pressure power distribution cabinet - Google Patents
Explosion-proof positive pressure power distribution cabinet Download PDFInfo
- Publication number
- CN108110643A CN108110643A CN201810115102.6A CN201810115102A CN108110643A CN 108110643 A CN108110643 A CN 108110643A CN 201810115102 A CN201810115102 A CN 201810115102A CN 108110643 A CN108110643 A CN 108110643A
- Authority
- CN
- China
- Prior art keywords
- power distribution
- distribution cabinet
- cabinet body
- venthole
- sprue
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The invention discloses explosion-proof positive pressure power distribution cabinets, and including power distribution cabinet body, the power distribution cabinet body is internally provided with fixed frame, and pressure release layer is equipped at the top of the power distribution cabinet body, and the pressure release layer is equipped with relief hole；The power distribution cabinet body is equipped with air inlet, and venthole is equipped at the top of the power distribution cabinet body, and the venthole top is equipped with gravity sprue, and the gravity sprue is sealed with the venthole；The gravity sprue lower part is equipped with metal hook, the metal hook is stretched by the venthole inside power distribution cabinet body, hard contact is equipped in the top lower surface of the power distribution cabinet body, the hard contact is arranged on the metal hook in the range of the upright projection at the top of power distribution cabinet body；The metal hook and the hard contact and the audible-visual annunciator electrical ties being arranged on outside power distribution cabinet body, forming circuit.The present invention utilizes mechanical structure pressure release, reliable and stable, and solves the problems, such as spring fatigue loss, fixes Opening pressure value.
Description
Technical field
The present invention relates to electrical equipments, particularly a kind of explosion-proof positive pressure power distribution cabinet.
Background technology
Explosion-proof positive pressure power distribution cabinet is suitable for chemical industry, offshore drilling platform, metallurgy, medicine, light industry, weaving, food, biological work
In the explosive gas such as journey, space flight and aviation engineering and military project or dust atmosphere, three-phase four-wire system (380V/220V) is exchanged low
Piezoelectricity device distribution system is powered.
Explosion-proof principle：Electric elements are mounted in a cabinet full of positive pressure clean gas, are made in external environment easily
Electric elements generated electric spark or dangerous temperature in normal work can not be touched by firing explosive mixed gases, so as to
Achieve the purpose that electric appliance is explosion-proof.
Explosion-proof positive pressure power distribution cabinet must be equipped with reliable pressure release safety device, and current existing pressure relief device is mainly following
Two kinds：
The first：It is by solenoid valve control, solenoid valve can be performed when pressure is increased to certain value in cabinet, opens valve
Realize release, this drawback is in the event of electric fault, it is impossible to which timely release damages cabinet, causes failure and loss.
Second：It is using spring, realizes that pressure-relief valve is opened by spring pressure, such mode is unfavorable for Auto-control of Micro-pressure, and
Spring has fatigue damage, can be changed using rear Opening pressure value for a long time.
The content of the invention
It is an object of the invention to solve the above problems, explosion-proof positive pressure power distribution cabinet is provided, using mechanical structure pressure release, reliably
Stablize, and solve the problems, such as spring fatigue loss, fix Opening pressure value.
The technical solution of invention is as follows：
Explosion-proof positive pressure power distribution cabinet, including power distribution cabinet body, the power distribution cabinet body is internally provided with fixed frame, the power distribution cabinet
Bodies top is equipped with pressure release layer, and the pressure release layer is equipped with relief hole；
The power distribution cabinet body is equipped with air inlet, and venthole, the venthole top are equipped at the top of the power distribution cabinet body
Equipped with gravity sprue, the gravity sprue is sealed with the venthole；
The gravity sprue lower part is equipped with metal hook, and the metal hook stretches into power distribution cabinet body by the venthole
Inside is equipped with hard contact in the top lower surface of the power distribution cabinet body, and the hard contact is arranged on the metal hook
In the range of the upright projection at the top of power distribution cabinet body；
The metal hook and the hard contact and the audible-visual annunciator electrical ties being arranged on outside power distribution cabinet body, shape
Into circuit.
Further：The relief hole is arranged on the side wall of the pressure release layer.
Further：The pressure release layer is removably disposed in the top of the power distribution cabinet body.
Further：The relief hole exit is provided with spark arrester.
The beneficial effects of the invention are as follows：Pressure release layer is equipped at the top of this explosion-proof positive pressure power distribution cabinet, can further play every
The effect of inflammable and explosive mixed gases in exhausted external environment, and gravity sprue can be protected, make itself and external environment phase
To isolation, the reliability of equipment ensure that.Gravity sprue blocks venthole by self gravitation, when pressure value is more than in power distribution cabinet
Gravity sprue will have been rushed when conducting oneself with dignity by air-flow realizes release, and reliable in action is convenient, and degree of reliability, simultaneously as gravity blocks up
There is the presence of metal hook below block, the top of power distribution cabinet body can be caught on, prevent gravity sprue is rushed by huge air-flow from flying,
Injure other equipment or people by a crashing object；And when gravity sprue has been rushed, metal hook can be contacted with hard contact, connect and its
The electrical circuit of connected audible-visual annunciator, makes audible-visual annunciator send alarm.
Description of the drawings
Fig. 1 is the schematic diagram of the invention explosion-proof positive pressure power distribution cabinet；
Wherein：1. power distribution cabinet body, 2. fixed frames, 3. pressure release layers, 4. relief holes, 5. air inlets, 6. ventholes, 7. weights
Power sprue, 8. metal hooks, 9. hard contacts, 10. audible-visual annunciators, 11. spark arresters.
Specific embodiment
Below in conjunction with the attached drawing of the present invention, the technical solution in the embodiment of the present invention is clearly and completely described.
Explosion-proof positive pressure power distribution cabinet, including power distribution cabinet body 1, the power distribution cabinet body 1 is internally provided with fixed frame 2, described to match somebody with somebody
Electric 1 top of cabinet body is equipped with pressure release layer 3, and the pressure release layer 3 is equipped with relief hole 4；
The power distribution cabinet body 1 is equipped with air inlet 5, and 1 top of power distribution cabinet body is equipped with venthole 6, the venthole 6
Top is equipped with gravity sprue 7, and the gravity sprue 7 is sealed with the venthole 6；
7 lower part of gravity sprue is equipped with metal hook 8, and the metal hook 8 stretches into distribution by the venthole 6
Inside cabinet body 1, hard contact 9 is equipped in the top lower surface of the power distribution cabinet body 1, the hard contact 9 is arranged on institute
Metal hook 8 is stated in the range of the upright projection at 1 top of power distribution cabinet body；
The metal hook 8 and the hard contact 9 are electrically connected with the audible-visual annunciator 10 being arranged on outside power distribution cabinet body 1
Knot, forming circuit.
Pressure release layer 3 is equipped at the top of this explosion-proof positive pressure power distribution cabinet, can further be played inflammable easy in isolation external environment
The effect of quick-fried mixed gases, and gravity sprue 7 can be protected, make itself and external environment relative insulation, ensure that equipment
Reliability.Gravity sprue 7 blocks venthole 6 by self gravitation, when pressure value is more than the dead weight of gravity sprue 7 in power distribution cabinet
It will be rushed by air-flow and realize release, reliable in action is convenient, and degree of reliability, simultaneously as there is metal hook in 7 lower section of gravity sprue
The presence of foot 8 can catch on the top of power distribution cabinet body 1, prevent gravity sprue 7 is rushed by huge air-flow from flying, injure other by a crashing object and set
Standby or people；And when gravity sprue 7 has been rushed, metal hook 8 can be contacted with hard contact 9, be connected coupled
The electrical circuit of audible-visual annunciator 10 makes audible-visual annunciator 10 send alarm.
Preferably：The relief hole 4 is arranged on the side wall of the pressure release layer 3, can prevent the sundries in external environment from leading to
Relief hole 4 is crossed, is fallen on gravity sprue 7, ensure that pressure release operation precision.
Preferably：The pressure release layer 3 is removably disposed in the top of the power distribution cabinet body 1, needing repairing or
When adjusting the weight of gravity sprue 7, pressure release layer 3 can be removed, facilitates repair, there is no need to remove entire explosion-proof positive press-fitting
Electric cabinet.
Preferably：4 exit of relief hole is provided with spark arrester 11, prevents from exploding inside power distribution cabinet, Huo Zhefa
During raw burning, open fire is gone out by relief hole 4, is threatened to external environment, prevents fault spread.
Described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, the every other implementation that those of ordinary skill in the art are obtained without making creative work
Example belongs to the scope of the protection of invention.
Claims (4)
1. explosion-proof positive pressure power distribution cabinet, including power distribution cabinet body, the power distribution cabinet body is internally provided with fixed frame, it is characterised in that：
Pressure release layer is equipped at the top of the power distribution cabinet body, the pressure release layer is equipped with relief hole；
The power distribution cabinet body is equipped with air inlet, is equipped with venthole at the top of the power distribution cabinet body, the venthole top is equipped with
Gravity sprue, the gravity sprue are sealed with the venthole；
The gravity sprue lower part is equipped with metal hook, and the metal hook is stretched by the venthole in power distribution cabinet body
Portion is equipped with hard contact in the top lower surface of the power distribution cabinet body, and the hard contact is arranged on the metal hook and exists
In the range of upright projection at the top of power distribution cabinet body；
The metal hook and the hard contact and the audible-visual annunciator electrical ties being arranged on outside power distribution cabinet body, form back
Road.
2. explosion-proof positive pressure power distribution cabinet as described in claim 1, it is characterised in that：The relief hole is arranged on the side of the pressure release layer
Wall.
3. explosion-proof positive pressure power distribution cabinet as described in claim 1, it is characterised in that：The pressure release layer is removably disposed in described match somebody with somebody
The top of electric cabinet body.
4. explosion-proof positive pressure power distribution cabinet as described in claim 1, it is characterised in that：The relief hole exit is provided with spark arrester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810115102.6A CN108110643A (en) | 2018-02-06 | 2018-02-06 | Explosion-proof positive pressure power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810115102.6A CN108110643A (en) | 2018-02-06 | 2018-02-06 | Explosion-proof positive pressure power distribution cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108110643A true CN108110643A (en) | 2018-06-01 |
Family
ID=62221065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810115102.6A Pending CN108110643A (en) | 2018-02-06 | 2018-02-06 | Explosion-proof positive pressure power distribution cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108110643A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109088339A (en) * | 2018-08-13 | 2018-12-25 | 芜湖九鼎电子科技有限公司 | A kind of releasing pressure automatically cooling device of high-tension switch cabinet |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203150944U (en) * | 2013-04-15 | 2013-08-21 | 宁波欧日力电器制造有限公司 | Anti-explosion mechanism of switch cabinet and switch cabinet |
| JP2015015833A (en) * | 2013-07-05 | 2015-01-22 | 株式会社東芝 | Pressure release device of metal-enclosed switchgear |
| CN204179508U (en) * | 2014-10-30 | 2015-02-25 | 成都科星电力电器有限公司 | A kind of pressure relief device of switch cabinet |
| CN206786119U (en) * | 2017-05-11 | 2017-12-22 | 刘铁生 | A kind of safety valve autoalarm |
| CN207896452U (en) * | 2018-02-06 | 2018-09-21 | 苏州金蚂蚁精密钣金有限公司 | Explosion-proof positive pressure power distribution cabinet |
-
2018
- 2018-02-06 CN CN201810115102.6A patent/CN108110643A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203150944U (en) * | 2013-04-15 | 2013-08-21 | 宁波欧日力电器制造有限公司 | Anti-explosion mechanism of switch cabinet and switch cabinet |
| JP2015015833A (en) * | 2013-07-05 | 2015-01-22 | 株式会社東芝 | Pressure release device of metal-enclosed switchgear |
| CN204179508U (en) * | 2014-10-30 | 2015-02-25 | 成都科星电力电器有限公司 | A kind of pressure relief device of switch cabinet |
| CN206786119U (en) * | 2017-05-11 | 2017-12-22 | 刘铁生 | A kind of safety valve autoalarm |
| CN207896452U (en) * | 2018-02-06 | 2018-09-21 | 苏州金蚂蚁精密钣金有限公司 | Explosion-proof positive pressure power distribution cabinet |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109088339A (en) * | 2018-08-13 | 2018-12-25 | 芜湖九鼎电子科技有限公司 | A kind of releasing pressure automatically cooling device of high-tension switch cabinet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107359373A (en) | A kind of energy-accumulating power station for carrying early warning and fire-fighting system | |
| CN206976521U (en) | A kind of energy-accumulating power station for carrying early warning and fire-fighting system | |
| CN208849333U (en) | A kind of switchgear temperature rise early warning arc light flame proection | |
| CN108631179A (en) | A kind of system integration switch board that safety coefficient is high | |
| CN113593154A (en) | Alarm system of high-low voltage power equipment | |
| CN204739294U (en) | Explosion -proof valve actuating mechanism that discharges fume | |
| CN108110643A (en) | Explosion-proof positive pressure power distribution cabinet | |
| CN207896452U (en) | Explosion-proof positive pressure power distribution cabinet | |
| CN106763946A (en) | Extinguishing flame delay-self-closing pressure-relief explosion-proof door | |
| RU2674239C1 (en) | Surround fire extinguishing system | |
| CN116260111B (en) | Distributed photovoltaic access protection equipment and application method thereof | |
| CN210444711U (en) | Electrical control cabinet with high-efficient heat dispersion | |
| CN207605261U (en) | A kind of low pressure extinguishing device | |
| CN207589319U (en) | A kind of chemical industry explosion-proof electronic electric appliance control box | |
| CN207489631U (en) | A kind of device of intelligence on-line checking dehydrating breather internal operation state | |
| CN215263911U (en) | Double-layer constant temperature and humidity battery test box | |
| CN213220637U (en) | Oil rig electric control room with automatic fire extinguishing system | |
| CN106178338A (en) | A kind of device that motor generator generator is had detection automatically and fire-extinguishing function concurrently | |
| CN205896313U (en) | Explosion -proof malleation pressure -relief valve for cabinet | |
| CN203259899U (en) | Driller room positive-pressure control system with interlocking function | |
| CN208315404U (en) | A kind of New-type Libraries fire prevention pre-alarm device | |
| CN207303814U (en) | A kind of gas-insulated metal-enclosed high-tension switch gear | |
| CN111956979A (en) | Fire protection device for electrical equipment | |
| CN205753372U (en) | A kind of protective relaying device | |
| CN210698608U (en) | Intelligent terminal of gas fire extinguishing equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |