Explosion-proof electric appliance control box for petrochemical engineering automation control

Abstract

The utility model discloses an explosion-proof electric appliance control box for petrochemical engineering automation control. An explosion-proof electric appliance control box for petrochemical engineering automation control comprises an explosion-proof electric appliance control box body, an auxiliary heat dissipation mechanism and a supporting mechanism. The supporting mechanism is used for supporting the explosion-proof electric appliance control box body and the auxiliary heat dissipation mechanism. According to the explosion-proof electric appliance control box for petrochemical engineering automation control provided by the utility model, the back surface of the explosion-proof electric appliance control box body is provided with the auxiliary heat dissipation mechanism comprising the semiconductor refrigeration plate, the heat dissipation fins, the air supply box and the fan, so that the explosion-proof electric appliance control box body can be subjected to auxiliary heat dissipation and cooling effects; the temperature of the explosion-proof electric appliance control box body is further reduced, and the supporting mechanism is installed on the explosion-proof electric appliance control box body, so that the explosion-proof electric appliance control box body and the auxiliary heat dissipation mechanism can be supported and fixed at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof control boxes, in particular to an explosion-proof electrical control box for petrochemical automation control. Background Art

[0002] The shell of the explosion-proof control box is made of steel plate welding or cast aluminum alloy die-casting, and the surface is high-voltage electrostatic sprayed. The overall product generally adopts a composite structure composed of a flameproof shell and an increased safety shell. The components installed in the flameproof shell can be equipped with explosion-proof buttons, explosion-proof components, explosion-proof signal lights, explosion-proof transfer switches and explosion-proof instruments, as well as ordinary electrical components such as AC contactors, thermal relays, thermostats and various functional modules; the buttons, control switches, instruments, etc. installed in the increased safety shell are all explosion-proof components.

[0003] An existing document with authorization announcement number CN220233934U discloses an explosion-proof electrical control box for petrochemical automation control, comprising an explosion-proof control box, a temperature sensor for detecting the internal temperature of the explosion-proof control box fixedly connected to the inner wall of the explosion-proof control box, a control unit for cooperating with the temperature sensor fixedly connected to the side surface of the explosion-proof control box, explosion-proof alarm lights for warning fixedly connected to the surfaces of both sides of the explosion-proof control box, and a detection component fixedly connected to the inner wall of the explosion-proof control box. The temperature sensor monitors the temperature inside the explosion-proof control box in real time. When the temperature reaches a preset value, the control unit causes the explosion-proof alarm light to flash and simultaneously transmits the detected data to a terminal (a mobile phone of a chemical plant inspector or a monitoring room in the chemical plant), facilitating rapid arrival of personnel for maintenance.

[0004] However, the control box is not provided with other heat dissipation components, and the heat dissipation effect of the control box is not effectively improved.

[0005] Therefore, it is necessary to provide an explosion-proof electrical control box for petrochemical automation control to solve the above technical problems. Utility Model Content

[0006] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an explosion-proof electrical control box for petrochemical automation control, which can further reduce the temperature of the control box.

[0007] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0008] An explosion-proof electrical control box for petrochemical automation control includes: an explosion-proof electrical control box body, an auxiliary heat dissipation mechanism and a support mechanism installed on the back of the explosion-proof electrical control box body, and the support mechanism is used to support the explosion-proof electrical control box body and the auxiliary heat dissipation mechanism; the auxiliary heat dissipation mechanism includes a semiconductor refrigeration plate, the upper and lower ends of the semiconductor refrigeration plate are connected to the support mechanism, and its cooling surface is attached to the outer shell of the explosion-proof electrical control box body, and thermal grease or other thermal conductive materials are filled between the contact surfaces of the two. A heat dissipation fin for helping the semiconductor refrigeration plate to dissipate heat is installed on one side of the heating surface of the semiconductor refrigeration plate, and a heat dissipation groove is provided horizontally on the heat dissipation fin. An air supply box is installed on one side of the heat dissipation fin, and the air supply box blows air horizontally to the heat dissipation fin to accelerate the heat dissipation speed of the heat dissipation fin. A fan is installed on the air inlet side of the air supply box, and the fan is located on the outside of the explosion-proof electrical control box body, thereby facilitating its maintenance.

[0009] Preferably, the support mechanism includes two support plates symmetrically installed on the back of the explosion-proof electrical control box body. Long strip connection holes are opened on both sides of the support plates for connecting to the control box mounting frame or bolts on the wall. The long strip connection holes can better tolerate faults. A clamping plate is installed on one side of the support plate for pressing the outside of the semiconductor refrigeration plate.

[0010] Preferably, a positioning hole is provided on the support plate.

[0011] Preferably, a positioning column aligned with the positioning hole is installed on the pressing plate.

[0012] Preferably, a spring is sleeved on the positioning column.

[0013] Preferably, bending heads are provided at both ends of the pressing plate, and the bending heads are bent toward a side away from the explosion-proof electrical control box body to facilitate the installation of the semiconductor refrigeration plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) The utility model can achieve auxiliary heat dissipation and cooling effect on the explosion-proof electrical control box body by installing an auxiliary heat dissipation mechanism including a semiconductor refrigeration plate, heat dissipation fins, an air supply box and a fan on the back of the explosion-proof electrical control box body, which is conducive to further reducing the temperature of the explosion-proof electrical control box body. The support mechanism is installed on the explosion-proof electrical control box body, which can simultaneously support and fix the explosion-proof electrical control box body and the auxiliary heat dissipation mechanism;

[0016] (2) The present invention can connect the pressing plate with the supporting plate by providing positioning holes and positioning columns, thereby facilitating the disassembly, assembly and replacement of the pressing plate;

[0017] (3) The utility model provides a spring on the positioning column to elastically connect the pressing plate and the supporting plate. The elasticity of the spring is used to fix the semiconductor refrigeration plate to the back of the explosion-proof electrical control box body, making it easy to disassemble and maintain the semiconductor refrigeration plate.

[0018] (4) The utility model can facilitate the installation of the semiconductor refrigeration plate by providing bending heads at both ends of the pressing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of an explosion-proof electrical control box for petrochemical automation control provided by the utility model;

[0020] Figure 2 for Figure 1 The structural diagram of the auxiliary heat dissipation mechanism in the explosion-proof electrical control box for petrochemical automation control is shown;

[0021] Figure 3 for Figure 1 The diagram shows the connection between the support plate and the pressing plate in the explosion-proof electrical control box for petrochemical automation control;

[0022] Figure 4 for Figure 1 The structural diagram of the support plate in the explosion-proof electrical control box for petrochemical automation control is shown;

[0023] Figure 5 for Figure 1 The figure shows a schematic diagram of the structure of the compression plate in the explosion-proof electrical control box used for petrochemical automation control.

[0024] Among them, the names corresponding to the figure marks are: 1-explosion-proof electrical control box body, 2-auxiliary heat dissipation mechanism, 3-support mechanism, 21-semiconductor refrigeration plate, 22-heat dissipation fins, 23-air supply box, 24-fan, 31-support plate, 311-positioning hole, 312-connecting hole, 33-pressing plate, 331-positioning column, 332-spring, 333-bending head. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments. The present invention includes but is not limited to the following embodiments.

[0026] Example 1:

[0027] like Figure 1-2As shown, the explosion-proof electrical control box for petrochemical automation control provided by the utility model includes: an explosion-proof electrical control box body 1 for petrochemical automation control, the explosion-proof electrical control box body 1 can adopt the structure disclosed in CN220233934U, an auxiliary heat dissipation mechanism 2 and a support mechanism 3 are installed on the back of the explosion-proof electrical control box body 1, the auxiliary heat dissipation mechanism 2 is used to perform additional auxiliary heat dissipation and cooling on the explosion-proof electrical control box body 1, and the support mechanism 3 is used to support the explosion-proof electrical control box body 1 and the auxiliary heat dissipation mechanism 2. Specifically, the explosion-proof electrical control box body 1 is installed on the control box frame or wall through the support mechanism 3, and the auxiliary heat dissipation mechanism 2 is fixed to the explosion-proof electrical control box through the support mechanism 3. The back of the main body 1; the auxiliary heat dissipation mechanism 2 includes a semiconductor refrigeration plate 21, the upper and lower ends of the semiconductor refrigeration plate 21 are connected to the supporting mechanism 3, and its cooling surface is attached to the outer shell of the explosion-proof electrical control box body 1, and the contact surfaces of the two are filled with thermal grease or other thermal conductive materials. A heat dissipation fin 22 for helping the semiconductor refrigeration plate 21 to dissipate heat is installed on one side of the heating surface of the semiconductor refrigeration plate 21. The heat dissipation groove is horizontally provided on the heat dissipation fin 22, and an air supply box 23 is installed on one side of the heat dissipation fin 22. The air supply box 23 blows air horizontally to the heat dissipation fin 22 to accelerate the heat dissipation speed of the heat dissipation fin 22. A fan 24 is installed on the air inlet side of the air supply box 23. The fan 24 is located on the outside of the explosion-proof electrical control box body 1 (either left or right side), so as to facilitate its maintenance. The fan 24 draws outside air into the air supply box 23 and discharges it from the air outlet on the other side. Since the air outlet of the air supply box 24 is flat, the air is compressed here to form a high-speed airflow, and the airflow blows horizontally toward the heat dissipation fins 23, accelerating the air flow rate near the heat dissipation fins 23, thereby increasing the heat dissipation speed of the heat dissipation fins 23. The faster heat dissipation speed of the heat dissipation fins 23 will accelerate the heat dissipation speed of the semiconductor refrigeration plate 21. When the semiconductor refrigeration plate 21 is started, it can cool and dissipate heat for the outer shell of the explosion-proof electrical control box body 1, thereby reducing the air temperature inside the explosion-proof electrical control box body 1, and assisting in heat dissipation and cooling the electrical components inside it.

[0028] By installing an auxiliary heat dissipation mechanism 2 including a semiconductor refrigeration plate 21, heat dissipation fins 22, an air supply box 23 and a fan 24 on the back of the explosion-proof electrical control box body 1, it can provide an auxiliary heat dissipation and cooling effect on the explosion-proof electrical control box body 1, which is beneficial to further reduce the temperature of the explosion-proof electrical control box body 1. Installing a support mechanism 3 on the explosion-proof electrical control box body 1 can simultaneously support and fix the explosion-proof electrical control box body 1 and the auxiliary heat dissipation mechanism 2.

[0029] Example 2:

[0030] like Figure 1-3As shown, the support mechanism 3 includes two support plates 31 symmetrically installed on the back of the explosion-proof electrical control box body 1. Long strip-shaped connecting holes 312 are provided on both sides of the support plates 31 for connecting to the control box mounting frame or bolts on the wall. The long strip-shaped connecting holes 312 can better tolerate faults and can be easily adjusted in position during installation, making installation more convenient. A clamping plate 33 for pressing the outside of the semiconductor refrigeration plate 21 is installed on one side of the support plate 31. When in use, bolts can be used to pass through the connecting holes 312 to fix the explosion-proof electrical control box body 1 to the mounting frame or wall. In addition, the clamping plate 33 presses the upper and lower sides of the semiconductor refrigeration plate 21 from the outside, thereby fixing the semiconductor refrigeration plate 21 to the back of the explosion-proof electrical control box body 1.

[0031] By providing the support mechanism 3 including the support plate 31 and the pressing plate 33 , the explosion-proof electrical control box body 1 and the auxiliary heat dissipation mechanism 2 can be supported and fixed at the same time.

[0032] Example 3:

[0033] like Figure 3-5 As shown, two positioning holes 311 are provided on the support plate 31, and positioning posts 331 aligned with the positioning holes 311 are installed on the clamping plate 33. When in use, the positioning posts 331 are aligned with the positioning holes 311 and inserted, thereby facilitating the connection between the clamping plate 33 and the support plate 31.

[0034] By providing the positioning holes 311 and the positioning posts 331 , the pressing plate 33 can be plugged into the support plate 31 , thereby facilitating the disassembly, assembly, and replacement of the pressing plate 33 .

[0035] Example 4:

[0036] like Figure 5 As shown, a spring 332 is sleeved on the positioning column 331, and the spring 332 is arranged between the clamping plate 33 and the support plate 31. The positioning column 331 is inserted into the positioning hole 311. During installation, the cooling surface of the semiconductor refrigeration plate 21 is coated with heat dissipation silicone grease, and then its upper and lower sides are inserted from the side between the clamping plate 33 and the explosion-proof electrical control box body 1, forcing the clamping plate 33 away from the explosion-proof electrical control box body 1 to compress the spring 332. Under the action of the spring 332, the clamping plate 33 elastically presses the semiconductor refrigeration plate 21, thereby facilitating the installation and removal of the semiconductor refrigeration plate 21.

[0037] By sleeved on the positioning column 331 a spring 332 is provided to elastically connect the pressing plate 33 and the supporting plate 31 . By utilizing the elasticity of the spring 332 , the pressing plate 33 fixes the semiconductor refrigeration plate 21 on the back of the explosion-proof electrical control box body 1 , making it convenient to disassemble and maintain the semiconductor refrigeration plate 21 .

[0038] Example 5:

[0039] like Figure 5 As shown, bending heads 333 are provided at both ends of the clamping plate 33, and the bending heads 33 are bent toward the side away from the explosion-proof electrical control box body 1, thereby facilitating the insertion of the semiconductor refrigeration plate 21 into the gap between the clamping plate 33 and the explosion-proof electrical control box body 1, thereby facilitating the installation of the semiconductor refrigeration plate 21.

[0040] By providing bending heads 333 at both ends of the pressing plate 33 , the installation of the semiconductor refrigeration plate 21 can be facilitated.

[0041] Working principle: When in use, the fan 24 draws external air into the air supply box 23 and discharges it from the air outlet on the other side. Since the air outlet of the air supply box 24 is flat, the air is compressed here to form a high-speed airflow, and the airflow blows horizontally to the heat dissipation fins 23, accelerating the air flow rate near the heat dissipation fins 23, thereby increasing the heat dissipation speed of the heat dissipation fins 23. The faster heat dissipation speed of the heat dissipation fins 23 will accelerate the heat dissipation speed of the semiconductor refrigeration plate 21. When the semiconductor refrigeration plate 21 is started, it can cool and dissipate heat for the outer shell of the explosion-proof electrical control box body 1, thereby reducing the air temperature inside the explosion-proof electrical control box body 1, and assisting in heat dissipation and cooling of the electrical components inside it, which is conducive to further reducing the temperature of the explosion-proof electrical control box body 1.

Claims

1. An explosion-proof electrical control box for petrochemical automation control, characterized in that: include: An explosion-proof electrical control box body (1), an auxiliary heat dissipation mechanism (2), and a support mechanism (3); The support mechanism (3) is used to support the explosion-proof electrical control box body (1) and the auxiliary heat dissipation mechanism (2); The auxiliary heat dissipation mechanism (2) comprises a semiconductor refrigeration plate (21) connected to a support mechanism (3); one side of the semiconductor refrigeration plate (21) is in contact with the explosion-proof electrical control box body (1); a heat dissipation fin (22) is installed on the other side of the semiconductor refrigeration plate (21); an air supply box (23) is installed on one side of the heat dissipation fin (22); and a fan (24) is installed on the air supply box (23).

2. The explosion-proof electrical control box for petrochemical automation control according to claim 1 is characterized in that: The support mechanism (3) comprises two support plates (31) symmetrically mounted on the back of the explosion-proof electrical control box body (1), a pressing plate (33) is mounted on one side of the support plate (31), and a long strip-shaped connecting hole (312) is provided on the support plate (31).

3. The explosion-proof electrical control box for petrochemical automation control according to claim 2, characterized in that: A positioning hole (311) is provided on the support plate (31).

4. The explosion-proof electrical control box for petrochemical automation control according to claim 2, characterized in that: A positioning column (331) is installed on the pressing plate (33).

5. The explosion-proof electrical control box for petrochemical automation control according to claim 4 is characterized in that: The positioning column (331) is sleeved with a spring (332).

6. The explosion-proof electrical control box for petrochemical automation control according to claim 2, characterized in that: A bending head (333) is provided at the end of the pressing plate (33).

Images