Electrical control cabinet for high-frequency power supply of electric dust remover

Abstract

The invention relates to the related technical field of power distribution devices, discloses an electrical control cabinet for a high-frequency power supply of an electric dust remover, and aims to solve the problem that a heat dissipation device cannot ensure effective protection of electrical elements in the cabinet at the same time. When dust-containing flue gas enters the air inlet horn, the driven fan blades can be driven to rotate synchronously through rotation of the detection fan blades, the air inlet bottom plate and the switch pressing plate are forced to be opened through airflow changes generated by the driven fan blades, and external airflow flows in the direction of input from the bottom of the power distribution cabinet body and output from the upper portion of the power distribution cabinet body, so that it is guaranteed that when a power distributor works, the power distribution cabinet is not damaged. The air flow in the power distribution cabinet body can flow to reduce the temperature of the working environment, and when the power distributor stops working, the switch pressing plate and the air inlet bottom plate are utilized to seal the power distribution cabinet body, so that the power distributor is prevented from being damaged due to the influence of the external environment, and finally, the power distribution cabinet body has a timely heat dissipation effect.

Description

Technical Field

[0001] The present invention relates to the technical field of distribution devices, and particularly to an electrical control cabinet for a high-frequency power supply of an electrostatic precipitator. Background Art

[0002] An electrical control cabinet is a device specifically designed to control the output switch of a high-frequency power supply. In the application of an electrostatic precipitator, it plays a crucial role and can effectively manage the functions of the corona electrode and the dust collecting electrode. Specifically, when the dusty flue gas passes through the electrostatic precipitator, the electrical control cabinet ensures the normal operation of the corona electrode, causing the dust particles in the flue gas to be charged. Subsequently, under the action of the electric field force, these charged dusts are attracted and deposited on the dust collecting electrode, thereby achieving the dust removal effect.

[0003] In practical applications, the electrical control cabinet usually adopts an active heat dissipation design with side slots to relieve the heat generated during the operation of the distributor. However, this heat dissipation method has a significant defect: when the device stops running, external impurities such as dust and rainwater are likely to enter the distribution cabinet along the slots, which not only pollutes the internal environment of the cabinet but may also directly cause damage to the components, thus generating serious safety hazards.

[0004] In view of this, there is an urgent need for a device that can both efficiently cool down and effectively protect the electrical distribution components inside the cabinet. Summary of the Invention

[0005] The present invention proposes an electrical control cabinet designed specifically for the high-frequency power supply of an electrostatic precipitator. This control cabinet has the ability to dissipate heat timely and efficiently, aiming to solve the problem in the prior art that the heat dissipation device cannot ensure effective protection of the electrical components inside the cabinet at the same time.

[0006] To achieve the above object, the present invention adopts the following technical solutions: An electrical control cabinet for a high-frequency power supply of an electrostatic precipitator, comprising: a dust removal box with an intake horn and an exhaust horn installed at both ends respectively, and a corona electrode power supply and a dust collecting electrode power supply fixed on the top; a distribution cabinet body fixed on the side of the intake horn, and a distributor installed inside the distribution cabinet body; a start switch fixed on the inner side of the distribution cabinet body, and a switch pressing plate is sleeved on the inner side of the distribution cabinet body above the start switch; a central shaft movably installed at the bottom of the distribution cabinet body, with a driven fan blade fixed at one end of the central shaft inside the distribution cabinet body and a detection fan blade fixed at the other end inside the intake horn; an intake bottom plate movably installed at the bottom of the distribution cabinet body; and a cabinet cover movably installed on the surface of the distribution cabinet body.

[0007] Further, the input end of the distributor is connected to an external supply power, and the output end is electrically connected to the corona electrode power supply and the dust collecting electrode power supply respectively through power supply cables.

[0008] Further, a viewing window is provided on the surface of the cabinet cover.

[0009] Further, a venting groove is provided on the outer side of the distribution cabinet body.

[0010] Further, a guiding groove is provided on the outer side of the distribution cabinet body, and a guiding strip moving along the guiding groove is arranged on the inner side of the cabinet cover.

[0011] Further, there is a guiding sleeve seat fixedly connected by a limit clamp on the side of the cabinet cover. A detection piston and a limit lock sleeve are movably installed inside the guiding sleeve seat, and a detection spring is connected between the detection piston and the limit lock sleeve; a temperature-sensitive glass rod is connected between the limit lock sleeve and the guiding sleeve seat, and a tension spring is connected between the outer side of the limit lock sleeve and the switch pressing plate.

[0012] Further, a damping hole is provided on the side of the guiding sleeve seat.

[0013] Further, a limit pressing rod located above the temperature-sensitive glass rod is fixedly installed at the bottom of the switch pressing plate, and a blocking arm is fixedly installed at the end of the detection piston.

[0014] Further, an anti-detachment hook is fixedly arranged at the end of the blocking arm.

[0015] The present invention has the following beneficial effects:

[0016] An electrical control cabinet for a high-frequency power supply of an electrostatic precipitator provided by the present invention is internally configured with distributors for regulating the switches of the corona electrode power supply and the dust collecting electrode power supply, and these distributors are arranged in the distribution cabinet body. In order to further improve the heat dissipation efficiency and protect the internal components, the present invention innovatively installs a detection fan blade in the intake horn. When the dusty flue gas enters the intake horn, the detection fan blade will rotate accordingly, and this action further drives the driven fan blade to rotate synchronously.

[0017] The rotation of the driven fan blade not only promotes the air flow circulation in the distribution cabinet body, effectively reduces the heat generated by the distributors during operation, but also intelligently controls the opening of the intake bottom plate and the switch pressing plate through the air flow change. This design enables the external air flow to flow smoothly in the direction of input from the bottom of the distribution cabinet body and output from the top, ensuring that there is always an effective air flow circulation inside the distribution cabinet body during the operation of the distributors, thereby significantly reducing the working environment temperature.

[0018] Particularly importantly, when the distributors stop working, the switch pressing plate and the intake bottom plate will automatically close, tightly sealing the distribution cabinet body, effectively isolating adverse factors such as dust and moisture in the external environment, and preventing the distributors from being damaged by the erosion of the external environment. This mechanism ensures that the electrical control cabinet can provide the best protection in different working states, truly realizing timely, efficient and intelligent heat dissipation effects, and improving the stability and durability of the entire electrostatic precipitator system. Description of the Drawings

[0019] The accompanying drawings, which form a part of the specification, illustrate the embodiments disclosed by the present invention and, together with the specification, are used to explain the principles disclosed by the present invention.

[0020] Referring to the accompanying drawings, the present invention can be more clearly understood from the following detailed description, wherein:

[0021] Figure 1 is a schematic diagram of the overall external three-dimensional structure in the present invention;

[0022] Figure 2 is a schematic diagram of the three-dimensional structure of the intake horn in the present invention;

[0023] Figure 3 is a schematic diagram of the installation position and structure between the intake horn and the distribution cabinet body in the present invention;

[0024] Figure 4 is a schematic diagram of the internal three-dimensional structure of the distribution cabinet body in the present invention;

[0025] Figure 5 is a schematic diagram of the internal planar structure of the distribution cabinet body in the present invention;

[0026] Figure 6 is a schematic diagram of the start switch structure in the present invention;

[0027] Figure 7 is a schematic diagram of the installation position and structure between the cabinet cover and the distribution cabinet body in the present invention;

[0028] Figure 8 is a schematic diagram of the internal three-dimensional structure of the guide sleeve seat in the present invention;

[0029] Figure 9 is a schematic diagram of the position and structure of the damping hole in the present invention;

[0030] Figure 10 is a schematic diagram of the position and structure of the guide groove in the present invention.

[0031] In the figure: 1. dust removal box; 2. screw conveyor ash discharge hopper; 3. ash discharge motor; 4. intake horn; 5. exhaust horn; 6. corona electrode power supply; 7. dust collecting electrode power supply; 8. power supply cable; 9. distribution cabinet body; 901. guide groove; 10. cabinet cover; 11. viewing window; 12. central axis; 13. detection fan blade; 14. driven fan blade; 15. intake bottom plate; 16. damping hole; 17. distributor; 18. start switch; 19. switch pressing plate; 20. tension spring; 21. air release groove; 22. limit pressure rod; 23. guide sleeve seat; 24. temperature-sensitive glass rod; 25. limit lock sleeve; 26. blocking arm; 27. detection piston; 28. detection spring. Detailed Description of the Specific Embodiments

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0033] As the first embodiment, the present invention can autonomously determine and activate the dust removal function according to the input of the dusty air flow and perform timely heat dissipation. Please refer to Figure 1 It can be seen that, similar to the commonly used dust collectors on the market at present, the dust removal box 1 is fixed at the required position by four legs at the bottom. The corona electrode power supply 6 and the collecting electrode power supply 7 are both fixed on the top of the dust removal box 1 to realize the power supply of the corona electrode and the collecting electrode inside the dust removal box 1. Ensure that the dusty air flow can be charged when passing through the corona electrode, and the charged dust will move towards the collecting electrode under the influence of the electric field force. Finally, when the dust adsorbed on the collecting electrode falls due to factors such as vibration, it can be collected by the screw ash discharge hopper 2 driven by the ash discharge motor 3 at the bottom and discharged outwards.

[0034] One end of the dust removal box 1 is fixedly installed with an air inlet horn 4 through a flange, and the other end is correspondingly installed with an exhaust horn 5. The dusty air flow conveyed by the fan can enter the inside of the dust removal box 1 through the air inlet horn 4. After the dust is adsorbed inside the dust removal box 1, the purified air flow is discharged from the exhaust horn 5. Refer to Figures 1 - 4 As can be seen from [[reference]], there is a distribution cabinet body 9 fixedly connected by bolts on the side of the air inlet horn 4. The distributor 17 is fixed inside the distribution cabinet body 9 according to bolts. The input end of the distributor 17 is connected to the external power supply, and the output end is electrically connected to the corona electrode power supply 6 and the collecting electrode power supply 7 respectively by the power supply cable 8. Thus, the switches of the corona electrode power supply 6 and the collecting electrode power supply 7 can be regulated through the distributor 17.

[0035] The start and stop of the distributor 17 are controlled by the start switch 18. As shown in Figure 5 and Figure 6 shown, the start switch 18 is fixed inside the distribution cabinet body 9. Correspondingly, a switch pressing plate 19 is sleeved inside the distribution cabinet body 9 above the start switch 18. Under the action of its own gravity, the switch pressing plate 19 is forced to always move downward and press against the start switch 18, and the start switch 18 is pressed, resulting in the distributor 17 being in a power-off state under normal conditions.

[0036] The bottom of the distribution cabinet body 9 is movably installed with a central shaft 12. From Figures 2 - 4As can be seen, a driven fan blade 14 located inside the power distribution cabinet body 9 is fixedly installed at one end of the central shaft 12. The other end of the central shaft 12 extends into the intake horn 4, and a detection fan blade 13 is fixedly installed at this end. When the dust-containing air flow flows through the intake horn 4, the air flow will push the detection fan blade 13 to rotate synchronously. At the same time, the detection fan blade 13 forces the driven fan blade 14 to rotate synchronously through the central shaft 12. The rotating driven fan blade 14 can transport the air flow at the bottom of the power distribution cabinet body 9 into its inner cavity. More specifically, referring to Figure 1 and Figure 4 As can be seen, a cabinet cover 10 is movably installed on the surface of the power distribution cabinet body 9 to protect the electrical appliances 17 inside the power distribution cabinet body 9. Moreover, a viewing window 11 is provided on the surface of the cabinet cover 10. The viewing window 11 is generally made of transparent glass, so that the working states of the various components inside the power distribution cabinet body 9 can be accurately observed through the viewing window 11.

[0037] During operation, the dust-containing flue gas is transported by the fan and sent into the dust removal box 1 from the intake horn 4. The air flow in the intake horn 4 will push the detection fan blade 13 to rotate when passing through it, and drive the driven fan blade 14 to rotate synchronously under the transmission of the central shaft 12. The rotating driven fan blade 14 will continuously transport the air flow at the bottom of the power distribution cabinet body 9 into its inner cavity, thereby forcing the pressure in the inner cavity of the power distribution cabinet body 9 to increase. When the air flow pressure in the inner cavity of the power distribution cabinet body 9 increases, it will push the switch pressing plate 19 to move upward synchronously, and then the switch pressing plate 19 will move relatively away from the start switch 18. When the start switch 18 is released from being pressed, the electrical appliance 17 will be started, and the start electrical signal will be transmitted to the corona electrode power supply 6 and the dust collecting electrode power supply 7 through the power supply cable 8 to make them start working. When the air flow passes through the corona electrode driven by the corona electrode power supply 6, the dust will be charged. The charged dust moves towards the dust collecting electrode driven by the dust collecting electrode power supply 7. Finally, the dust collecting electrode driven by the dust collecting electrode power supply 7 adsorbs the dust, and the purified flue gas is discharged from the exhaust horn 5.

[0038] When there is no flue gas input into the intake horn 4, there will be no air flow in the intake horn 4 to push the detection fan blade 13 to rotate. Similarly, the driven fan blade 14 will no longer rotate, and the high-pressure state of the air flow inside the power distribution cabinet body 9 cannot be maintained. Finally, the switch pressing plate 19 moves downward under gravity and presses the start switch 18. When the start switch 18 is pressed, the electrical appliance 17 will also stop working, and the stop signal will be transmitted to the corona electrode power supply 6 and the dust collecting electrode power supply 7 through the power supply cable 8 to make the corona electrode power supply 6 and the dust collecting electrode power supply 7 stop working synchronously.

[0039] An air leakage groove 21 is provided on the outer side of the power distribution cabinet body 9, as shown in Figure 4As shown, when the driven fan blade 14 rotates, the air flow at the bottom will enter the interior of the power distribution cabinet body 9, and after the air flow pressure increases, it will push the switch pressing plate 19 upward until the switch pressing plate 19 crosses the air release groove 21. At this time, the air flow at the bottom of the power distribution cabinet body 9 passes through the distributor 17 and is discharged from the air release groove 21. This not only enables the distributor 17 to start timely, but also allows the air flow to flow inside the power distribution cabinet body 9, ensuring that the distributor 17 does not operate at high temperatures.

[0040] In order to implement dust prevention and other measures for the electrical appliances inside the power distribution cabinet body 9 when they are not working, combined with Figure 3 and Figure 4 It can be clearly seen that an air intake bottom plate 15 is hinged at the bottom of the power distribution cabinet body 9, and the air intake bottom plate 15 can only deflect up and down at the bottom of the inner cavity of the power distribution cabinet body 9. When the driven fan blade 14 rotates, due to the decrease in air flow pressure between the air intake bottom plate 15 and the driven fan blade 14, the air intake bottom plate 15 has a tendency to deflect upward, and the air intake bottom plate 15 conveys the external air flow from the bottom of the power distribution cabinet body 9 into its inner cavity to ensure the continuous flow of the air flow. When the driven fan blade 14 stops working, under the action of the gravity of the air intake bottom plate 15, the air intake bottom plate 15 returns to the horizontal state, thereby preventing external dust from being conveyed into the power distribution cabinet body 9.

[0041] Based on the above, it can be seen that in the application of the first embodiment, the detection fan blade 13 in the air intake horn 4 can detect the input of the dusty air flow in real time, thereby ensuring that the corona electrode power supply 6 and the dust collecting electrode power supply 7 can be switched on and off timely under the regulation of the distributor 17. Moreover, when the distributor 17 is working, the air flow pressure inside the power distribution cabinet body 9 forces the switch pressing plate 19 and the air intake bottom plate 15 to open, realizing the air flow inside the power distribution cabinet body 9, thereby achieving the cooling of the distributor 17. When there is no flue gas input in the air intake horn 4, the switch pressing plate 19 and the air intake bottom plate 15 will block the inner cavity of the power distribution cabinet body 9, thereby ensuring that when the distributor 17 is not working, the inner cavity of the power distribution cabinet body 9 is not communicated with the outside, so as to avoid the influence of the external environment on the internal components of the power distribution cabinet body 9.

[0042] The second embodiment is a further improvement on the basis of the first embodiment. As Figure 10 shown, a guiding groove 901 is provided on the outer side of the power distribution cabinet body 9. Correspondingly, a guiding strip that moves along the guiding groove 901 is provided on the inner side of the cabinet cover 10, thereby restricting the cabinet cover 10 movably installed on the power distribution cabinet body 9 to only move up and down reciprocally. In order to realize the installation and fixation of the cabinet cover 10, combined with Figures 7 - 9 it can be seen that there is a guiding sleeve seat 23 on the side of the cabinet cover 10 that is tightly connected by a limiting clamp frame. From Figure 7It can be clearly seen that the limit clamp frame is fastened with bolts and is located on one side of the distributor 17. A detection piston 27 and a limit lock sleeve 25 are movably installed inside the guide sleeve 23, and a detection spring 28 is connected between the detection piston 27 and the limit lock sleeve 25. Under the elastic force of the detection spring 28, the detection piston 27 and the limit lock sleeve 25 are always forced to have a tendency to move away from each other. Figure 8 and Figure 9 It can be clearly seen that the detection piston 27 is blocked by the inner side of the guide sleeve 23 and cannot be separated from the guide sleeve 23. Therefore, under the push of the detection spring 28, the limit lock sleeve 25 has a tendency to move away from the detection piston 27. On this basis, a temperature-sensitive glass rod 24 is connected between the limit lock sleeve 25 and the guide sleeve 23. The temperature-sensitive glass rod 24 will generally break when the temperature is too high (such as used in fire sprinkler heads). Figure 7 and Figure 8 It can be seen that with the intervention of the temperature-sensitive glass rod 24, the limit lock sleeve 25 is forced to be inserted into the guide sleeve 23 and overcome the elastic force of the detection spring 28, and a tension spring 20 is fastened between the outer side of the limit lock sleeve 25 and the switch pressure plate 19. Therefore, under the pull of the elastic force of the tension spring 20, the tension spring 20 is forced to pull the guide sleeve 23 to have an upward trend, and the guide sleeve 23 uses the limit clamp frame to drive the guide bar on the cabinet cover 10 to move upward along the guide groove 901 until the guide bar moves up to the top limit of the guide groove 901. At this time, the temperature-sensitive glass rod 24 is on one side of the distributor 17; at the same time, the switch pressure plate 19 will enhance its downward trend under the pull of the elastic force of the tension spring 20, forcing the switch pressure plate 19 to always have a tendency to press on the start switch 18. In combination with the above, since the temperature-sensitive glass rod 24 is located near the distributor 17, when the temperature of the distributor 17 is abnormally too high, such as a short circuit fire or other accident, the rapidly rising temperature will reach the threshold value for the temperature-sensitive glass rod 24 to break. After the temperature-sensitive glass rod 24 breaks, it will no longer provide limiting support for the limit lock sleeve 25. Under the push of the elastic force of the detection spring 28, the limit lock sleeve 25 is forced to move away from the guide sleeve 23 until the limit lock sleeve 25 and the guide sleeve 23 are separated. Finally, since the cabinet cover 10 is no longer pulled upward by the tension spring 20, it will move downward along the guide groove 901 through the guide bar under its own gravity, exposing the interior of the distribution cabinet 9, so that when a short circuit fire occurs in the distributor 17, external operators can promptly extinguish the components inside the distribution cabinet 9.

[0043] Moreover, combined with Figure 9 It can be seen that a damping hole 16 is provided on the side of the guide sleeve 23, and the damping hole 16 can realize the communication between the inside of the guide sleeve 23 and the external environment. Figure 8As shown, under the urging of the elastic force of the detection spring 28, the detection piston 27 is forced to block the damping hole 16. As described in the content of the first embodiment, after the driven fan blade 14 stops working, the intake bottom plate 15 will quickly close under its own gravity, and the switch pressure plate 19, under its own gravity and the pulling force of the tension spring 20, will squeeze the air flow inside the distribution cabinet body 9 again. After the air flow pressure inside the distribution cabinet body 9 increases, the detection piston 27 will overcome the elastic force of the detection spring 28, forcing the detection piston 27 to cross the damping hole 16, so that the damping hole 16 communicates the external environment with the air flow in the inner cavity of the distribution cabinet body 9. Since the air in the inner cavity of the distribution cabinet body 9 cannot flow out of the damping hole 16 quickly in a short time, therefore, the switch pressure plate 19 has a tendency to slowly descend, that is, to delay pressing the start switch 18, ensuring that after the air flow input to the intake horn 4 stops, the corona electrode power supply 6 and the dust collecting electrode power supply 7 will still continue to work for a period of time, and will stop working after purifying the remaining air flow inside the dust removal box 1.

[0044] On this basis, in combination with Figure 4 、 Figure 7 and Figure 8 it can be seen that a limit pressure rod 22 located above the temperature-sensitive glass rod 24 is fixedly installed at the bottom of the switch pressure plate 19. At the same time, a retaining arm 26 is fixedly installed at the end of the detection piston 27 away from the detection spring 28, and the retaining arm 26 is located between the limit pressure rod 22 and the temperature-sensitive glass rod 24. In combination with Figure 8 it can be seen that an anti-detachment hook is fixedly arranged at the end of the retaining arm 26. The advantage of this design is that during normal operation, the retaining arm 26 is located below the limit pressure rod 22, and under the urging of the elastic force of the detection spring 28, the anti-detachment hook abuts against the limit pressure rod 22. At this time, the detection piston 27 has not moved to the left extreme position of the guide sleeve seat 23, but at this time the detection piston 27 has blocked the damping hole 16; at the same time, the switch pressure plate 19 is located below the air leakage groove 21 under the pulling force of the tension spring 20, so that the upper part inside the distribution cabinet body 9 is blocked; the intake bottom plate 15 blocks the lower part of the distribution cabinet body 9 under its own gravity. So far, it can be seen that the inside of the distribution cabinet body 9 in the stopped working state is in a relatively sealed state, so that the external environment will not affect the components inside the distribution cabinet body 9.

[0045] When there is a dusty airflow input into the intake horn 4, it will drive the detection fan blade 13 to rotate. Under the drive of the central shaft 12, the driven fan blade 14 rotates synchronously. The rotating driven fan blade 14 allows the airflow to enter from the bottom of the distribution cabinet body 9 and output from the top. At this time, the intake bottom plate 15 opens due to the reduced pressure above, and the bottom of the switch pressure plate 19 moves upward due to the increased airflow pressure and releases the suppression on the start switch 18. When the start switch 18 is released from suppression, the distributor 17 starts the corona electrode power supply 6 and the dust collecting electrode power supply 7 through the power supply cable 8 and conducts dust removal work. When the upward moving switch pressure plate 19 passes over the air release groove 21, the airflow is discharged from the air release groove 21, thereby realizing the continuous flow of the airflow inside the distribution cabinet body 9 and preventing the working temperature of the distributor 17 from being too high.

[0046] If no dusty airflow is input into the intake horn 4 anymore, the intake bottom plate 15 will close under its own gravity. At the same time, when the switch pressure plate 19 moves downward and passes over the air release groove 21, it will squeeze the airflow inside the cavity of the distribution cabinet body 9, resulting in an increase in the airflow pressure inside the cavity of the distribution cabinet body 9. Combining Figure 8 As shown, the increase in the airflow pressure inside the cavity of the distribution cabinet body 9 will push the detection piston 27 to further compress the detection spring 28. At the same time, the blocking arm 26 moves with the detection piston 27 to between the limit pressure rod 22 and the temperature-sensitive glass rod 24. When the detection piston 27 passes over the damping hole 16, the airflow inside the cavity of the distribution cabinet body 9 slowly flows out from the damping hole 16, so that the corona electrode power supply 6 and the dust collecting electrode power supply 7 stop working with a time delay. When the limit pressure rod 22 moves downward and abuts against the blocking arm 26, the switch pressure plate 19 simultaneously suppresses the start switch 18 to stop the distributor 17 from working, and the limit pressure rod 22 blocked by the blocking arm 26 will not continue to move downward; if there is a seal leakage between the intake bottom plate 15 / switch pressure plate 19 and the distribution cabinet body 9 during the downward movement of the switch pressure plate 19, it will affect the sealing performance inside the distribution cabinet body 9. To facilitate warning external operators, when there is a leakage, the airflow inside the cavity of the distribution cabinet body 9 will not push the detection piston 27 to compress the detection spring 28 either. Under the elastic force of the detection spring 28, the detection piston 27 moves to the leftmost limit inside the guide sleeve seat 23. At this time, the blocking arm 26 is far away from below the limit pressure rod 22. When the switch pressure plate 19 moves under the elastic force of the tension spring 20, the limit pressure rod 22 on the switch pressure plate 19 is no longer blocked by the blocking arm 26, and the limit pressure rod 22 will eventually hit the temperature-sensitive glass rod 24, thereby using the impact to force the temperature-sensitive glass rod 24 to break. After that, under the elastic force of the detection spring 28, the limit lock sleeve 25 is forced to disengage from the guide sleeve seat 23, and finally the cabinet cover 10 is separated from the distribution cabinet body 9, warning the operator through the opening of the distribution cabinet body 9 that the sealing performance on the distribution cabinet body 9 fails and needs to be repaired.

[0047] Moreover, if a component in the distribution cabinet body 9 catches fire, it will also cause the temperature-sensitive glass rod 24 to break, thereby detaching the cabinet cover 10 from the distribution cabinet body 9, facilitating the operator to extinguish the fire inside the distribution cabinet body 9.

Claims

1. An electrical control cabinet for high-frequency power supply of an electrostatic precipitator, characterized in that: include: The dust removal box (1) is provided with an air intake horn (4) and an exhaust horn (5) at both ends, and a corona electrode power supply (6) and a dust collecting electrode power supply (7) are fixed on the top; A power distribution cabinet (9) is fixed to the side of the air intake speaker (4), and a distributor (17) is installed inside the power distribution cabinet (9); A start switch (18) is fixed on the inner side of the power distribution cabinet (9), and a switch pressure plate (19) is mounted on the inner side of the power distribution cabinet (9) and is located above the start switch (18); A central shaft (12) is movably mounted at the bottom of the power distribution cabinet (9), one end of the central shaft (12) is fixedly mounted with a driven fan blade (14) located inside the power distribution cabinet (9), and the other end of the central shaft (12) is fixedly mounted with a detection fan blade (13) located inside the air intake speaker (4); An air intake bottom plate (15) is movably mounted on the bottom of the power distribution cabinet (9); The cabinet cover (10) is movably mounted on the surface of the power distribution cabinet (9).

2. The electrical control cabinet for high-frequency power supply of an electrostatic precipitator according to claim 1, characterized in that: The input end of the distributor (17) is connected to an external power supply, and the output end is electrically connected to the corona electrode power supply (6) and the dust collecting electrode power supply (7) respectively by means of a power supply cable (8).

3. The electrical control cabinet for high-frequency power supply of an electrostatic precipitator according to claim 1, characterized in that: A viewing window (11) is provided on the surface of the cabinet cover (10).

4. The electrical control cabinet for high-frequency power supply of an electrostatic precipitator according to claim 1, characterized in that: An air discharge groove (21) is provided on the outer side of the power distribution cabinet (9).

5. The electrical control cabinet for high-frequency power supply of an electrostatic precipitator according to claim 1, characterized in that: A guide groove (901) is provided on the outer side of the power distribution cabinet body (9), and a guide strip moving along the guide groove (901) is provided on the inner side of the cabinet cover (10).

6. The electrical control cabinet for high-frequency power supply of an electrostatic precipitator according to any one of claims 1 or 5, characterized in that: A guide sleeve (23) is provided on the side of the cabinet cover (10) and is fastened by a limit clamp frame. A detection piston (27) and a limit lock sleeve (25) are movably installed inside the guide sleeve (23), and a detection spring (28) is connected between the detection piston (27) and the limit lock sleeve (25). A temperature-sensitive glass rod (24) is connected between the limit lock sleeve (25) and the guide sleeve seat (23), and a tension spring (20) is connected between the outer side of the limit lock sleeve (25) and the switch pressing plate (19).

7. The electrical control cabinet for high-frequency power supply of an electrostatic precipitator according to claim 6, characterized in that: A damping hole (16) is provided on the side of the guide sleeve seat (23).

8. The electrical control cabinet for high-frequency power supply of an electrostatic precipitator according to claim 7, characterized in that: A limit pressure rod (22) located above the temperature-sensitive glass rod (24) is fixedly installed at the bottom of the switch pressure plate (19), and a stop arm (26) is fixedly installed at the end of the detection piston (27).

9. The electrical control cabinet for high-frequency power supply of an electrostatic precipitator according to claim 8, characterized in that: An anti-drop hook is fixedly arranged at the end of the barrier arm (26).

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