CN207733164U - A kind of positive pressure explosion-proof cabinet - Google Patents
A kind of positive pressure explosion-proof cabinet Download PDFInfo
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- CN207733164U CN207733164U CN201721920141.0U CN201721920141U CN207733164U CN 207733164 U CN207733164 U CN 207733164U CN 201721920141 U CN201721920141 U CN 201721920141U CN 207733164 U CN207733164 U CN 207733164U
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- cabinet
- positive pressure
- proof
- pressure explosion
- explosion
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Abstract
The utility model discloses a kind of positive pressure explosion-proof cabinets,It is related to positive pressure explosion-proof cabinet field,The device includes cabinet,Cooler and air exchange control system,Cabinet includes inner cabinet and outer cabinet,Inner cabinet is set in outer cabinet,An accommodation space is formed between inner cabinet and outer cabinet,Incompressible liquid is filled in accommodation space,Cooler includes cooling import and coolant outlet,Cooling import is connected with outer cabinet,Coolant outlet is connected with outer cabinet by a water pump,And cooling import and coolant outlet are connected to accommodation space,Air exchange control system includes air inlet pipe,Escape pipe,Differential pressure pickup and controller,One first control valve is equipped in air inlet pipe and an air outlet pipe,Differential pressure pickup can detect the pressure difference inside inner cabinet and outside outer cabinet,And controller is electrically connected with differential pressure pickup and the first control valve respectively,The utility model can improve whole positive pressure explosion-proof cabinet bearing capacity,And to carrying out cooling operation in positive pressure explosion-proof cabinet.
Description
Technical field
The utility model is related to positive pressure explosion-proof cabinet fields, and in particular to a kind of positive pressure explosion-proof cabinet.
Background technology
With the rapid development of the industries such as oil, chemical industry, use of the positive pressure explosion-proof cabinet in system control is more and more extensive.
But existing positive pressure cabinet exists and uses defect, i.e., its internal electric elements can radiate, the heat retention of generation inside positive pressure cabinet,
Cause its temperature to increase, influences the normal work of electric elements, and frequent high temperature alarm and course of work urgent interrupt meeting
Influence the service life of electric elements.And positive pressure cabinet is often in having with explosive gas, combustible dust or highly volatile
In the environment of solvent, and existing positive pressure cabinet is easy there is a problem of that bearing capacity is relatively low, just since it is single layer mechanism
When pressing the pressure difference inside and outside cabinet excessive, it is easily damaged cabinet, leads to explosive gas, combustible dust or highly volatile in environment
Organic solvent enter in positive pressure cabinet, and positive pressure cabinet in have electric elements, easily generate spark, easily cause safety it is hidden
Suffer from.
Utility model content
It in view of the deficiencies in the prior art, can the purpose of this utility model is to provide a kind of positive pressure explosion-proof cabinet
The bearing capacity of positive pressure explosion-proof cabinet is improved, and can be to carrying out cooling operation in positive pressure explosion-proof cabinet.
To achieve the above objectives, the technical scheme adopted by the utility model is that：A kind of positive pressure explosion-proof cabinet, including：
Cabinet, the cabinet include inner cabinet and outer cabinet, and the inner cabinet is set in the outer cabinet, the inner cabinet
An accommodation space is formed between outer cabinet, and incompressible liquid is filled in the accommodation space；
Cooler, the cooler include that cooling import and coolant outlet, the cooling import are connected with the outer cabinet,
The coolant outlet is connected with the outer cabinet by a water pump, and the cooling import and coolant outlet are empty with the receiving
Between be connected to；
Air exchange control system, the air exchange control system include air inlet pipe, escape pipe, differential pressure pickup and controller, institute
It states and is connected to inside air inlet pipe and an air outlet pipe and the inner cabinet, one first control valve is equipped in the air inlet pipe and an air outlet pipe,
The differential pressure pickup can detect inside the inner cabinet with the pressure difference outside outer cabinet, and the controller respectively with the pressure
Gap sensor and the electrical connection of the first control valve.
Based on the above technical solution, between the cooling import and outer cabinet between the coolant outlet and outer cabinet
It is equipped with one second control valve, second control valve and water pump are electrically connected with the controller.
Based on the above technical solution, the cooling import is connected with the outer cabinet top, and the water pump with
The outer cabinet lower part is connected.
Based on the above technical solution, the positive pressure explosion-proof cabinet further includes a pressure release being connected to the accommodation space
Pipe, the relief tube are equipped with a pressure relief safety valve.
Based on the above technical solution, the differential pressure pickup connects an alarm.
Based on the above technical solution, the alarm connection one is set to the temperature sensing inside the inner cabinet
Device.
Based on the above technical solution, the alarm includes a wireless communication module.
Based on the above technical solution, the cooler is shell and tube cooler.
Based on the above technical solution, the incompressible liquid is water.
Based on the above technical solution, the cabinet is equipped with several ribs.
Compared with prior art, the utility model has the advantage of：
(1) a kind of positive pressure explosion-proof cabinet in the utility model, by the double-layer structure formed by inner cabinet and outer cabinet, and
Full incompressible liquid is filled between inner cabinet and outer cabinet, when inner cabinet bears pressure, the pressure that inner cabinet is born can be direct
It is undertaken together by outer cabinet, can effectively improve whole positive pressure explosion-proof cabinet bearing capacity, and pass through setting and inner cabinet and outer cabinet
The cooler that accommodation space between body is connected, can be to carrying out cooling operation in positive pressure explosion-proof cabinet.
Description of the drawings
Fig. 1 is the structural schematic diagram of positive pressure explosion-proof cabinet in the utility model embodiment.
In figure：1- cabinets, 11- inner cabinets, 12- outer cabinets, 13- accommodation spaces, 14- incompressible liquids, 2- coolers,
21- cools down import, 22- coolant outlets, 23- water pumps, 31- air inlet pipe, 32- escape pipes, 33- differential pressure pickups, the controls of 34- first
Valve, the second control valves of 4-, 5- alarms, 6- temperature sensors, 7- pressure relief safety valves.
Specific implementation mode
The embodiments of the present invention are described in further detail below in conjunction with attached drawing.
Shown in Figure 1, the utility model embodiment provides a kind of positive pressure explosion-proof cabinet, including cabinet 1, cooler 2 and changes
Gas control system, cabinet 1 include inner cabinet 11 and outer cabinet 12, and inner cabinet 11 is set in outer cabinet 12, inner cabinet 11 and outer cabinet
An accommodation space 13 is formed between body 12, is filled with incompressible liquid 14 in accommodation space 13, it is preferred that incompressible liquid 14
For water, cooler 2 includes cooling import 21 and coolant outlet 22, and cooling import 21 is connected with outer cabinet 12,22 He of coolant outlet
Outer cabinet 12 is connected by a water pump 23, and cooling import 21 and coolant outlet 22 are connected to accommodation space 13, it is preferred that cold
But device 2 is shell and tube cooler, and safety zone is arranged in the cooler 2, improves the safety of the cooler 2, air exchange control system
Including air inlet pipe 31, escape pipe 32, differential pressure pickup 33 and controller, connect inside air inlet pipe 31 and escape pipe 32 and inner cabinet 11
It is logical, be equipped with one first control valve 34 in air inlet pipe 31 and escape pipe 32, differential pressure pickup 33 can detect 11 inside of inner cabinet with
Pressure difference outside outer cabinet 12, and controller is electrically connected with differential pressure pickup 33 and the first control valve 34 respectively, in positive-pressure explosion-proof
Before electric elements operation in cabinet, need to carrying out ventilation operation in the positive pressure explosion-proof cabinet, air exchange control system passes through air inlet pipe
The operation for fill compressed air or inert gas inside the inner cabinet 11 of 31 pairs of positive pressure explosion-proof cabinets, will be in positive pressure explosion-proof cabinet
The organic solvent of inflammable gas, combustible dust or highly volatile is discharged by escape pipe 32, be inflated operation one section when
Between after, when the inside of inner cabinet 11 reaches certain value with the pressure difference outside outer cabinet 12, pass through monitoring control devices differential pressure pickup
33, the first control valve 34 of control closes escape pipe 32, then supplements a small amount of compressed air or inert gas by air inlet pipe 31, makes this
Positive pressure explosion-proof cabinet internal pressure, which is tried hard to keep, holds micro-positive pressure；Air pressure inside the inner cabinet 11 for leading to positive pressure explosion-proof cabinet due to fortuitous event with
When air pressure difference outside positive pressure explosion-proof cabinet is larger, at this point, since the positive pressure explosion-proof cabinet is that inner cabinet 11 and outer cabinet 12 form
Double-layer structure, and the accommodation space 13 in it have incompressible liquid 14, can be when inner cabinet 11 bears pressure, interior cabinet
The pressure that body 11 is born can directly be undertaken by outer cabinet 12 together, can effectively be improved whole positive pressure explosion-proof cabinet bearing capacity, be kept away
Exempt from positive pressure explosion-proof cabinet and is damaged since pressure difference is larger；When carrying out cooling processing to positive pressure explosion-proof cabinet, due to cooler 2 and interior cabinet
Body 11 is connected to the accommodation space 13 that outer cabinet 12 is formed, and can make the incompressible liquid for absorbing heat in positive pressure explosion-proof cabinet
14 enter cooler 2 by cooling import 21, are cooled down to it by cooler 2, then in being entered by coolant outlet 22
In the accommodation space 13 that cabinet 11 and outer cabinet 12 are formed, to play the operation to cool down to positive pressure explosion-proof cabinet.
It is shown in Figure 1, one the is equipped between cooling import 21 and outer cabinet 12 between coolant outlet 22 and outer cabinet 12
Two control valves 4, the second control valve 4 and water pump 23 are electrically connected with the controller, can positive pressure explosion-proof cabinet inside and outside differential pressure it is larger into
When row pressure-bearing, controller controls the access for closing pipeline of the second control valve 4 by monitoring differential pressure pickup 33, can avoid
When positive pressure explosion-proof cabinet carries out pressure-bearing, the pressure possessed by incompressible liquid 14 is larger and damages cooler 2, is conducive to improve
The service life of the positive pressure explosion-proof cabinet；Cooling import 21 is connected with 12 top of outer cabinet, and water pump 23 and 12 lower part phase of outer cabinet
Even, the incompressible liquid 14 in the accommodation space 13 can be made more completely to enter in cooler 2 and carry out cooling operation, had
Conducive to the cooling-down effect of the positive pressure explosion-proof cabinet is improved, positive pressure explosion-proof cabinet further includes a relief tube being connected to accommodation space 13, is let out
Pressure pipe is equipped with a pressure relief safety valve 7,14 expanded by heating of incompressible liquid or inner cabinet 11 in accommodation space 13 and outer
When the mutual extruding incompressible liquid 14 of cabinet 12 reaches the pressure of preset value, pressure relief safety valve 7, which can be opened, makes accommodation space 13
Interior incompressible liquid 14 carries out pressure discharge operations by relief tube, avoids the incompressible liquid 14 in accommodation space 13 heated
Expansion or excessive extrusion lead to the damage of the inner cabinet 11 and outer cabinet 12, the further structural reform safety of the positive pressure explosion-proof cabinet
Performance.
Shown in Figure 1, differential pressure pickup 33 connects an alarm 5, in the inner cabinet 11 that differential pressure pickup 33 monitors
When larger with pressure difference outside outer cabinet 12, can feed back to alarm 5 makes it carry out alarm operation, can remind operating personnel；Report
The alert connection of device 5 one is set to the temperature sensor 6 inside inner cabinet 11, and the temperature in inner cabinet 11 is detected in temperature sensor 6
When higher, warning reminding staff can be carried out by alarm 5；Alarm 5 includes a wireless communication module, can alarmed
While device 5 carries out alarm operation, and the mobile device either computer of module transfer to staff by radio communication are whole
It alarms on end, further raising staff understands the case where positive pressure explosion-proof cabinet；Cabinet 1 is equipped with several reinforcements
Rib can further improve the integral strength of positive pressure explosion-proof cabinet, improve the bearing capacity of the positive pressure explosion-proof cabinet.
The utility model is not only limited to above-mentioned preferred forms, anyone can obtain under the enlightenment of the utility model
Go out other various forms of products, however, make any variation in its shape or structure, it is every to have and the utility model phase
Same or close technical solution, within its protection domain.
Claims (10)
1. a kind of positive pressure explosion-proof cabinet, which is characterized in that including：
Cabinet (1), the cabinet (1) include inner cabinet (11) and outer cabinet (12), and the inner cabinet (11) is set to the outer cabinet
In body (12), an accommodation space (13) is formed between the inner cabinet (11) and outer cabinet (12), is filled out in the accommodation space (13)
Completely there is incompressible liquid (14)；
Cooler (2), the cooler (2) include cooling import (21) and coolant outlet (22), the cooling import (21) and
The outer cabinet (12) is connected, and the coolant outlet (22) and the outer cabinet (12) are connected by a water pump (23), and described
Cooling import (21) and coolant outlet (22) are connected to the accommodation space (13)；
Air exchange control system, the air exchange control system include air inlet pipe (31), escape pipe (32), differential pressure pickup (33) and control
It is connected to inside device processed, the air inlet pipe (31) and escape pipe (32) and the inner cabinet (11), the air inlet pipe (31) and outlet
One first control valve (34) is equipped on pipe (32), the detectable inner cabinet (11) of the differential pressure pickup (33) is internal with outside
The external pressure difference of cabinet (12), and the controller is electrically connected with the differential pressure pickup (33) and the first control valve (34) respectively
It connects.
2. a kind of positive pressure explosion-proof cabinet as described in claim 1, it is characterised in that：The cooling import (21) and outer cabinet (12)
Between one second control valve (4), second control valve (4) and water are equipped between the coolant outlet (22) and outer cabinet (12)
Pump (23) is electrically connected with the controller.
3. a kind of positive pressure explosion-proof cabinet as described in claim 1, it is characterised in that：The cooling import (21) and the outer cabinet
(12) top is connected, and the water pump (23) is connected with the outer cabinet (12) lower part.
4. a kind of positive pressure explosion-proof cabinet as described in claim 1, it is characterised in that：The positive pressure explosion-proof cabinet further include one with it is described
The relief tube of accommodation space (13) connection, the relief tube are equipped with a pressure relief safety valve (7).
5. a kind of positive pressure explosion-proof cabinet as described in claim 1, it is characterised in that：One alarm of differential pressure pickup (33) connection
Device (5).
6. a kind of positive pressure explosion-proof cabinet as claimed in claim 5, it is characterised in that：Alarm (5) connection one is set to described
The internal temperature sensor (6) of inner cabinet (11).
7. a kind of positive pressure explosion-proof cabinet as claimed in claim 5, it is characterised in that：The alarm (5) includes a wireless communication
Module.
8. a kind of positive pressure explosion-proof cabinet as described in claim 1, it is characterised in that：The cooler (2) is shell and tube cooler.
9. a kind of positive pressure explosion-proof cabinet as described in claim 1, it is characterised in that：The incompressible liquid (14) is water.
10. a kind of positive pressure explosion-proof cabinet as described in claim 1, it is characterised in that：The cabinet (1) is equipped with several ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721920141.0U CN207733164U (en) | 2017-12-29 | 2017-12-29 | A kind of positive pressure explosion-proof cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721920141.0U CN207733164U (en) | 2017-12-29 | 2017-12-29 | A kind of positive pressure explosion-proof cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207733164U true CN207733164U (en) | 2018-08-14 |
Family
ID=63084422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721920141.0U Active CN207733164U (en) | 2017-12-29 | 2017-12-29 | A kind of positive pressure explosion-proof cabinet |
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| CN (1) | CN207733164U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111295079A (en) * | 2019-11-07 | 2020-06-16 | 徐州市工大三森科技有限公司 | Heat dissipation method for mining high-power explosion-proof electrical equipment |
| CN111525419A (en) * | 2020-05-09 | 2020-08-11 | 裕成电器有限公司 | Metal enclosed switch cabinet with arcing blocking device |
| CN113194642A (en) * | 2021-04-23 | 2021-07-30 | 中国成达工程有限公司 | Secondary protection box and secondary protection method for electrical equipment |
| CN113910266A (en) * | 2021-12-16 | 2022-01-11 | 佛山华数机器人有限公司 | A explosion-proof switch board of malleation for spraying robot |
| CN114980671A (en) * | 2022-05-24 | 2022-08-30 | 苏州八匹马超导科技有限公司 | Explosion-proof heat dissipation control cabinet and equipment for hazardous gas environment |
-
2017
- 2017-12-29 CN CN201721920141.0U patent/CN207733164U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111295079A (en) * | 2019-11-07 | 2020-06-16 | 徐州市工大三森科技有限公司 | Heat dissipation method for mining high-power explosion-proof electrical equipment |
| CN111525419A (en) * | 2020-05-09 | 2020-08-11 | 裕成电器有限公司 | Metal enclosed switch cabinet with arcing blocking device |
| CN111525419B (en) * | 2020-05-09 | 2021-09-17 | 裕成电器有限公司 | Metal enclosed switch cabinet with arcing blocking device |
| CN113194642A (en) * | 2021-04-23 | 2021-07-30 | 中国成达工程有限公司 | Secondary protection box and secondary protection method for electrical equipment |
| CN113910266A (en) * | 2021-12-16 | 2022-01-11 | 佛山华数机器人有限公司 | A explosion-proof switch board of malleation for spraying robot |
| CN114980671A (en) * | 2022-05-24 | 2022-08-30 | 苏州八匹马超导科技有限公司 | Explosion-proof heat dissipation control cabinet and equipment for hazardous gas environment |
| CN114980671B (en) * | 2022-05-24 | 2023-09-01 | 苏州八匹马超导科技有限公司 | Explosion-proof heat dissipation control cabinet and equipment for dangerous gas environment |
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