CN216057769U - Positive-pressure ventilation explosion-proof control cabinet - Google Patents
Positive-pressure ventilation explosion-proof control cabinet Download PDFInfo
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- CN216057769U CN216057769U CN202121983640.0U CN202121983640U CN216057769U CN 216057769 U CN216057769 U CN 216057769U CN 202121983640 U CN202121983640 U CN 202121983640U CN 216057769 U CN216057769 U CN 216057769U
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Abstract
The utility model discloses a positive pressure ventilation explosion-proof control cabinet, which comprises a box body enclosed by a panel, side plates, a rear plate, a top plate and a bottom plate; the explosion-proof control cabinet is characterized in that a transverse partition plate is arranged in the box body, the transverse partition plate divides the box body into a main cavity chamber located on the upper portion of the box body and an auxiliary cavity chamber located on the lower portion of the box body, a pressure relief discharge valve is installed in the main cavity chamber, a positive pressure cabinet controller is installed in the auxiliary cavity chamber, and an explosion-proof air conditioner is further installed in the positive pressure ventilation explosion-proof control cabinet. The explosion-proof air conditioner comprises an explosion-proof air conditioner indoor unit and an explosion-proof air conditioner outdoor unit, wherein the explosion-proof air conditioner indoor unit is arranged in the main chamber, the explosion-proof air conditioner outdoor unit is arranged outside the box body, and the explosion-proof air conditioner indoor unit and the explosion-proof air conditioner outdoor unit are connected through a pipeline and a cable. The utility model can ensure the normal operation of high-power electric driving equipment and control components, and greatly enlarges the application range of the positive pressure ventilation explosion-proof control cabinet.
Description
Technical Field
The utility model relates to an electrical control cabinet, in particular to a positive pressure ventilation explosion-proof control cabinet for an explosion hazard place.
Background
With the continuous development of industries such as petroleum, chemical industry, chemical fiber, medicine and the like, the production scale of enterprises is continuously enlarged, the process and the control technology are continuously improved, the requirements on safety production are increasingly strict, and the positive pressure ventilation explosion-proof control cabinet is widely applied to explosion dangerous places to achieve the aim of safety production. The conventional positive pressure ventilation explosion-proof control cabinet can only be used for low power, the self heat dissipation capacity of the matched components is not high, but some high-power non-explosion-proof electric driving equipment with large self heat dissipation capacity, such as a high-power frequency converter, a soft starter and the like, if the high-power electric driving equipment is installed in the common positive pressure ventilation explosion-proof control cabinet, a large amount of heat can be generated in the operation process due to the high-power electric driving equipment, the positive pressure ventilation explosion-proof control cabinet cannot dissipate a large amount of heat due to the sealing requirement, the temperature in the cabinet is overhigh, and the high-power electric driving equipment cannot normally operate, so that the use of the positive pressure ventilation explosion-proof control cabinet is limited.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide the positive pressure ventilation explosion-proof control cabinet which can ensure the normal operation of high-power electric driving equipment, can timely dissipate heat in the cabinet and has a wider application range.
In order to solve the technical problem, the utility model adopts the positive pressure ventilation explosion-proof control cabinet which comprises a box body enclosed by a panel, a side plate, a rear plate, a top plate and a bottom plate; the explosion-proof control cabinet is characterized in that a transverse partition plate is arranged in the box body, the transverse partition plate divides the box body into a main cavity chamber located on the upper portion of the box body and an auxiliary cavity chamber located on the lower portion of the box body, a pressure relief discharge valve is installed in the main cavity chamber, a positive pressure cabinet controller is installed in the auxiliary cavity chamber, and an explosion-proof air conditioner is further installed in the positive pressure ventilation explosion-proof control cabinet.
As a preferred embodiment of the present invention, the explosion-proof air conditioner comprises an explosion-proof air conditioner indoor unit and an explosion-proof air conditioner outdoor unit, the explosion-proof air conditioner indoor unit is installed in the main chamber, the explosion-proof air conditioner outdoor unit is installed outside the box body, and the explosion-proof air conditioner indoor unit and the explosion-proof air conditioner outdoor unit are connected by a pipeline and a cable.
In a preferred embodiment of the present invention, the outdoor unit of the explosion-proof air conditioner is fixedly installed on a support frame outside the cabinet.
In a preferred embodiment of the present invention, a valve set for supplying clean air or inert gas to the main chamber through a gas source pipeline is further installed in the auxiliary chamber.
In a preferred embodiment of the present invention, an indicating instrument and a command electric device are mounted on the panel.
After adopting the structure, the utility model has the following beneficial effects:
the positive pressure ventilation explosion-proof control cabinet is provided with an explosion-proof air conditioner, the explosion-proof air conditioner preferably consists of an explosion-proof air conditioner indoor unit and an explosion-proof air conditioner outdoor unit, the explosion-proof air conditioner indoor unit is arranged in a main chamber, and the explosion-proof air conditioner outdoor unit is arranged outside a box body; when the air conditioner works, the heat in the main cavity is taken out of the main cavity in a heat exchange mode, and the heat in the main cavity is timely dissipated, so that the temperature of the main cavity can ensure the normal operation of high-power electric driving equipment and other control components.
The valve bank for providing clean air or inert gas for the main cavity through the gas source pipeline is arranged in the auxiliary cavity, so that the structure ensures that even if flammable and explosive gas exists outside the main cavity, the flammable and explosive gas cannot invade into the main cavity, and electric sparks generated by electric driving equipment and control components and parts operating in the main cavity cannot cause explosion.
The utility model can be suitable for non-explosion-proof electric driving equipment and control components with high power and larger self heat dissipation, and greatly enlarges the application range of the positive pressure ventilation explosion-proof control cabinet.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the positive pressure ventilation explosion-proof control cabinet of the utility model.
Fig. 2 is a side view of fig. 1.
Detailed Description
Referring to fig. 1 and 2, the positive pressure ventilation explosion-proof control cabinet includes a box body enclosed by a panel 1, a side plate 2, a back plate 3, a top plate 4 and a bottom plate 5, wherein the box body is generally a closed box body; a transverse clapboard 2a is arranged in the box body, the box body is divided into a main chamber 6 positioned at the upper part of the box body and an auxiliary chamber 7 positioned at the lower part of the box body by the transverse clapboard 2a, a pressure relief and discharge valve 8 is arranged in the main chamber 6, the main chamber 6 is a micro-positive pressure space, used for installing electrical driving equipment and control components of specific projects, when the positive pressure ventilation explosion-proof control cabinet normally operates, if the pressure in the main chamber 6 exceeds a set value, the pressure relief and discharge valve 8 automatically relieves pressure and discharges to prevent overpressure in the main chamber 6 and ensure that the positive pressure ventilation explosion-proof control cabinet is not damaged by overpressure, a positive pressure cabinet controller 9 is arranged in the auxiliary chamber 7, the positive pressure cabinet controller 9 is mainly used for controlling the pressure in the main chamber 6 to be kept in a normal range, and the upper and lower limits of the pressure in the main chamber 6 are alarmed, and the positive pressure ventilation explosion-proof control cabinet is also provided with an explosion-proof air conditioner.
As a preferred embodiment of the present invention, as shown in fig. 2, the explosion-proof air conditioner comprises an explosion-proof indoor air conditioner 10 and an explosion-proof outdoor air conditioner 11, the explosion-proof indoor air conditioner 10 is installed in the main chamber 6, the explosion-proof outdoor air conditioner 11 is installed outside the casing, and the explosion-proof indoor air conditioner 10 and the explosion-proof outdoor air conditioner 11 are connected by a pipeline and a cable 12. When the explosion-proof air conditioner works, the indoor unit 10 of the explosion-proof air conditioner brings the heat in the main chamber 6 to the outside of the main chamber 6 in a heat exchange manner, and timely radiates the heat in the main chamber 6, so that the temperature of the main chamber 6 can ensure the normal operation of the high-power electric driving equipment and the control component 18.
As a preferred embodiment of the present invention, as shown in fig. 2, the outdoor unit 11 is fixedly installed on a support frame 13 outside the cabinet.
As a preferred embodiment of the present invention, as shown in fig. 2, a valve set 15 for providing clean air or inert gas to the main chamber 6 through a gas source pipeline 14 is further installed in the auxiliary chamber 7, one end of the gas source pipeline 14 is communicated with a clean air or inert gas source, and the other end is communicated with the main chamber 6, and the valve set 15 preferably comprises a switch valve, a pressure reducing filter, a throttle valve and an electromagnetic valve. When the gas valve works, the valve group 15 provides clean air or inert gas for the main chamber 6 through the gas source pipeline 14, the main chamber 6 is filled with the clean air or the inert gas and is slightly positive pressure, if flammable and explosive gas exists outside the main chamber 6, the flammable and explosive gas cannot invade the main chamber 6, and electric sparks generated by high-power electric driving equipment operating in the main chamber 6 and the control component 18 cannot cause explosion.
As a preferred embodiment of the present invention, as shown in fig. 1, an indicating instrument 16 and a command electric device 17 are mounted on the panel 1; the indicating instrument 16 may be a needle instrument, a digital display instrument, a touch screen, etc. for displaying the operating parameters of the controlled device, and the instruction electrical appliance 17 may be a button, a knob switch, etc. for operating the start-stop or switching operation mode of the controlled device.
After trial, the positive-pressure ventilation explosion-proof control cabinet can distribute heat in the cabinet in time when in work, ensures that high-power electric driving equipment and control components can normally run, greatly enlarges the application range of the positive-pressure ventilation explosion-proof control cabinet, and obtains good practical effect.
Claims (5)
1. A positive pressure ventilation explosion-proof control cabinet comprises a box body enclosed by a panel (1), side plates (2), a rear plate (3), a top plate (4) and a bottom plate (5); be equipped with cross slab (2 a) in the box, cross slab (2 a) separate into main cavity room (6) that are located box upper portion with the box and vice cavity (7) that are located the box lower part install pressure release bleeder valve (8) in main cavity room (6) install malleation cabinet controller (9), its characterized in that in vice cavity (7): the positive pressure ventilation explosion-proof control cabinet is also provided with an explosion-proof air conditioner.
2. The positive draft explosion-proof switch board of claim 1, wherein: the explosion-proof air conditioner is composed of an explosion-proof air conditioner indoor unit (10) and an explosion-proof air conditioner outdoor unit (11), wherein the explosion-proof air conditioner indoor unit (10) is installed in the main chamber (6), the explosion-proof air conditioner outdoor unit (11) is installed outside the box body, and the explosion-proof air conditioner indoor unit (10) and the explosion-proof air conditioner outdoor unit (11) are connected through a pipeline and a cable (12).
3. The positive-pressure ventilation explosion-proof control cabinet according to claim 2, characterized in that: the explosion-proof air conditioner outdoor unit (11) is fixedly arranged on a supporting frame (13) outside the box body.
4. The positive draft explosion-proof switch board of claim 1, wherein: and a valve group (15) for providing clean air or inert gas to the main chamber (6) through a gas source pipeline (14) is also arranged in the auxiliary chamber (7).
5. The positive draft explosion proof control cabinet according to any one of claims 1 to 4, wherein: an indicating instrument (16) and a command electric appliance (17) are arranged on the panel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121983640.0U CN216057769U (en) | 2021-08-23 | 2021-08-23 | Positive-pressure ventilation explosion-proof control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121983640.0U CN216057769U (en) | 2021-08-23 | 2021-08-23 | Positive-pressure ventilation explosion-proof control cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216057769U true CN216057769U (en) | 2022-03-15 |
Family
ID=80620855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121983640.0U Active CN216057769U (en) | 2021-08-23 | 2021-08-23 | Positive-pressure ventilation explosion-proof control cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216057769U (en) |
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2021
- 2021-08-23 CN CN202121983640.0U patent/CN216057769U/en active Active
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