CN207896452U - Explosion-proof positive pressure power distribution cabinet - Google Patents
Explosion-proof positive pressure power distribution cabinet Download PDFInfo
- Publication number
- CN207896452U CN207896452U CN201820200090.2U CN201820200090U CN207896452U CN 207896452 U CN207896452 U CN 207896452U CN 201820200090 U CN201820200090 U CN 201820200090U CN 207896452 U CN207896452 U CN 207896452U
- Authority
- CN
- China
- Prior art keywords
- power distribution
- distribution cabinet
- cabinet body
- venthole
- gravity
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses explosion-proof positive pressure power distribution cabinet, 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；Gravity sprue lower part is equipped with metal hook, the metal hook is stretched by the venthole inside power distribution cabinet body, it is equipped with hard contact in the top lower surface of the power distribution cabinet body, the hard contact is arranged in the metal hook within the scope 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 outside power distribution cabinet body, forming circuit.The utility model utilizes mechanical structure pressure release, reliable and stable, and solves the problems, such as spring fatigue loss, and Opening pressure value is made to fix.
Description
Technical field
The utility model is related to electrical equipment, especially 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, 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 that solenoid valve can be executed when pressure is increased to certain value in cabinet by solenoid valve control, opens valve
Realizing release, this drawback is in case of electric fault, it is impossible to which timely release makes cabinet damage, causes failure and loss.
Second：It is to utilize 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.
Utility model content
Purpose of the utility model is to solve the above problems and provide explosion-proof positive pressure power distribution cabinet, using mechanical structure pressure release,
It is reliable and stable, and solve the problems, such as spring fatigue loss, so that Opening pressure value is fixed.
The technical solution of utility model is as follows：
Explosion-proof positive pressure power distribution cabinet, including power distribution cabinet body, the power distribution cabinet body are 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；
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 in the metal hook
Within the scope 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 outside power distribution cabinet body, shape
At circuit.
Further：The side wall in the pressure release layer is arranged in the relief hole.
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 utility model has the beneficial effects that：It is equipped with pressure release layer at the top of this explosion-proof positive pressure power distribution cabinet, can further be risen
To the effect of inflammable and explosive mixed gases in isolation external environment, and gravity sprue can be protected, make itself and external rings
Border relative insulation ensure that the reliability of equipment.Gravity sprue blocks venthole by its own gravity, when pressure value in power distribution cabinet
It will be rushed by air-flow when conducting oneself with dignity more than gravity sprue and realize release, reliable in action is convenient, and degree of reliability, simultaneously as weight
The presence for having metal hook below power sprue, can catch on the top of power distribution cabinet body, prevent gravity sprue by huge air-flow
Punching flies, and injures other equipment or people by a crashing object；And when gravity sprue has been rushed, metal hook can be contacted with hard contact, be connect
The electrical circuit for leading to coupled audible-visual annunciator, makes audible-visual annunciator send out alarm.
Description of the drawings
Fig. 1 is the schematic diagram of the explosion-proof positive pressure power distribution cabinet described in utility model；
Wherein：1. power distribution cabinet body, 2. fixed frames, 3. pressure release layers, 4. relief holes, 5. air inlets, 6. ventholes, 7. gravity
Sprue, 8. metal hooks, 9. hard contacts, 10. audible-visual annunciators, 11. spark arresters.
Specific implementation mode
Below in conjunction with the attached drawing of the utility model, the technical scheme in the embodiment of the utility model is carried out clear, complete
Site preparation describes.
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
1 top of electric cabinet ontology 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 the 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 power distribution cabinet by the venthole 6
Inside ontology 1, it is equipped with hard contact 9 in the top lower surface of the power distribution cabinet body 1, the hard contact 9 is arranged described
Metal hook 8 is within the scope 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 outside power distribution cabinet body 1
Knot, forming circuit.
It is equipped with pressure release layer 3 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 its own gravity, 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 from being rushed by huge air-flow and fly, 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 out alarm.
Preferably：The side wall in the pressure release layer 3 is arranged in the relief hole 4, and the sundries in external environment can be prevented logical
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, is needing repairing, or
When adjusting the weight of gravity sprue 7, pressure release layer 3 can be removed, repair is facilitated, there is no need to remove entire explosion-proof positive press-fitting
Electric cabinet.
Preferably：4 exit of the relief hole is provided with spark arrester 11, prevents from exploding inside power distribution cabinet, Huo Zhefa
When raw burning, open fire is gone out by relief hole 4, is threatened to external environment, and fault spread is prevented.
The described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.Based on this
Embodiment in utility model, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, belongs to the range of the protection of utility model.
Claims (4)
1. explosion-proof positive pressure power distribution cabinet, including power distribution cabinet body, the power distribution cabinet body are 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；
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 setting exists in the metal hook
Within the scope 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 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 in 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
The top of electric cabinet ontology.
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 |
|---|---|---|---|
| CN201820200090.2U CN207896452U (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 |
|---|---|---|---|
| CN201820200090.2U CN207896452U (en) | 2018-02-06 | 2018-02-06 | Explosion-proof positive pressure power distribution cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207896452U true CN207896452U (en) | 2018-09-21 |
Family
ID=63544065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820200090.2U Expired - Fee Related CN207896452U (en) | 2018-02-06 | 2018-02-06 | Explosion-proof positive pressure power distribution cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207896452U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110643A (en) * | 2018-02-06 | 2018-06-01 | 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 CN201820200090.2U patent/CN207896452U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110643A (en) * | 2018-02-06 | 2018-06-01 | 苏州金蚂蚁精密钣金有限公司 | Explosion-proof positive pressure power distribution cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180921 Termination date: 20220206 |