Electric control cabinet of power plant

Abstract

The utility model discloses an electrical control cabinet for a power plant. The electrical control cabinet comprises a cabinet body, a first fan, a heat pipe assembly and an air drying piece, the interior of the cabinet body is used for accommodating electrical elements, the rear part of the cabinet body is provided with an airflow circulation channel, a first ventilation opening is formed between the upper part of the cabinet body and the airflow circulation channel, and a second ventilation opening is formed between the lower part of the cabinet body and the airflow circulation channel; the first fan is arranged in the airflow circulation channel and is used for driving airflow to flow along the airflow circulation channel; an evaporation section of the heat pipe assembly extends into the air flow circulation channel, and a condensation section of the heat pipe assembly extends obliquely upwards and extends out of the air flow circulation channel; the air drying piece is arranged in the airflow circulation channel and used for drying passing airflow. The electrical control cabinet meets the requirements of high-efficiency heat dissipation and moisture prevention, can guarantee stable operation of electrical elements in the electrical control cabinet, and further guarantees safe operation of a power plant.

Description

Technical Field

[0001] This utility model relates to the field of power plant equipment technology, specifically to an electrical control cabinet for a power plant. Background Technology

[0002] Electrical components (such as circuit breakers, contactors, and relays) within the electrical control cabinet of a power plant generate heat during operation. Poor heat dissipation can lead to insulation aging, contact erosion, and even short circuits. High temperatures can also affect the accuracy of electronic components (such as sensors and controllers), causing protective devices to malfunction or fail, thus threatening the safe operation of the power plant. Therefore, heat dissipation in the power plant's electrical control cabinet is a crucial factor in ensuring the stable operation of electrical equipment.

[0003] Heat pipe cooling is a common method for cooling electrical control cabinets in power plants. Its principle is to use the phase change (evaporation-condensation) of the working fluid inside the heat pipe to quickly transfer heat and guide the heat source to the heat dissipation fins on the outside of the cabinet.

[0004] In actual operation, in addition to meeting the heat dissipation requirements, power plant electrical control cabinets also need to be moisture-proof. Existing power plant electrical control cabinets that use heat pipe cooling do not perform well in terms of moisture protection. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an electrical control cabinet for power plants that combines efficient heat dissipation and moisture protection, ensuring the stable operation of electrical components within the cabinet and thus guaranteeing the safe operation of the power plant.

[0006] This utility model provides an electrical control cabinet for a power plant, comprising:

[0007] The cabinet has an interior for housing electrical components. The rear of the cabinet has an airflow circulation channel, the upper part of the cabinet has a first ventilation opening between it and the airflow circulation channel, and the lower part of the cabinet has a second ventilation opening between it and the airflow circulation channel.

[0008] The first fan is located in the airflow circulation channel and is used to drive the airflow to flow along the airflow circulation channel;

[0009] A heat pipe assembly, wherein the evaporation section of the heat pipe assembly extends into the airflow circulation channel, and the condensation section of the heat pipe assembly extends obliquely upward and out of the airflow circulation channel; and,

[0010] An air drying element is disposed within the airflow circulation channel and is used to dry the passing airflow.

[0011] Furthermore, the width of the upper and lower ends of the airflow circulation channel gradually increases to the width of the cabinet, and both the first and second ventilation openings are provided with mesh holes that are distributed along the width direction of the cabinet.

[0012] Furthermore, a heat dissipation channel is provided on the outside of the airflow circulation channel, and a third vent and a fourth vent are respectively provided at the upper and lower ends of the heat dissipation channel, and the condensation section of the heat pipe assembly extends into the heat dissipation channel;

[0013] It also includes a second fan, which is located in the heat dissipation channel and is used to drive airflow along the heat dissipation channel.

[0014] Furthermore, both the third and fourth ventilation openings are provided with mesh.

[0015] Furthermore, both the evaporation section and the condensation section of the heat pipe assembly are provided with heat dissipation fins extending vertically.

[0016] Furthermore, an airflow circulation shell is integrally provided on the rear side of the cabinet, an airflow circulation channel is formed inside the airflow circulation shell, and a heat pipe installation port is provided outside the airflow circulation shell;

[0017] A heat pipe housing is installed outside the heat pipe mounting port of the airflow circulation housing, and the heat dissipation channel is formed inside the heat pipe housing. The middle part of the heat pipe assembly is fixed to the side plate of the heat pipe housing located on the side of the heat pipe mounting port.

[0018] Furthermore, the heat pipe housing and the airflow circulation housing are connected by bolts.

[0019] Furthermore, a pair of drawer tracks are provided on the inner walls of the left and right sides of the airflow circulation housing, and a drawer opening is provided on the rear side wall of the airflow circulation housing corresponding to the position of the drawer tracks. The air drying component is inserted into the drawer opening, and its two sides are respectively installed on the drawer tracks on the corresponding sides. The outer end of the air drying component is provided with an outer sealing plate that seals the drawer opening.

[0020] Furthermore, the outer sealing plate is provided with a handle.

[0021] Furthermore, the front side of the cabinet is provided with a cabinet door and a lock for locking the cabinet door to prevent accidental operation.

[0022] The beneficial effects of this utility model are reflected in:

[0023] During operation, the first fan drives the airflow inside the cabinet into the airflow circulation channel. The airflow is cooled by the evaporation section of the heat pipe assembly. At the same time, after being dried by the air dryer, it is circulated back into the cabinet, thereby achieving cooling and drying of the air inside the cabinet. Therefore, this utility model takes into account both the requirements of efficient heat dissipation and moisture prevention, which can ensure the stable operation of electrical components in the electrical control cabinet, and thus ensure the safe operation of the power plant. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0025] Figure 1 This is a front axonometric view of an embodiment of the present invention;

[0026] Figure 2 This is a rear axonometric view of an embodiment of the present utility model;

[0027] Figure 3 This is an internal sectional axonometric view of an embodiment of the present invention.

[0028] In the attached diagram, 100 - cabinet body; 110 - airflow circulation channel; 111 - first vent; 112 - second vent; 113 - airflow circulation shell; 114 - heat pipe mounting port; 115 - drawer slide; 116 - drawer opening; 120 - heat dissipation channel; 121 - third vent; 122 - fourth vent; 123 - heat pipe shell; 130 - cabinet door; 131 - anti-misoperation lock; 200 - first fan; 300 - heat pipe assembly; 310 - heat dissipation fins; 400 - air drying component; 410 - outer sealing plate; 420 - handle; 500 - second fan. Detailed Implementation

[0029] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0030] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0031] like Figures 1-3 As shown, this utility model embodiment provides a power plant electrical control cabinet, including a cabinet body 100, a first fan 200, a heat pipe assembly 300, and an air drying component 400.

[0032] The interior of the cabinet 100 is used to house electrical components. The rear of the cabinet 100 is provided with an airflow circulation channel 110. A first vent 111 is provided between the upper part of the cabinet 100 and the airflow circulation channel 110, and a second vent 112 is provided between the lower part of the cabinet 100 and the airflow circulation channel 110.

[0033] The first fan 200 is located in the airflow circulation channel 110 and is used to drive the airflow to flow along the airflow circulation channel 110.

[0034] The evaporation section of the heat pipe assembly 300 extends into the airflow circulation channel 110, and the condensation section of the heat pipe assembly 300 extends obliquely upward and out of the airflow circulation channel 110.

[0035] It should be noted that the heat pipe assembly 300 utilizes a phase change heat transfer cycle, and its working process is based on a closed-loop cycle of evaporation-condensation-recirculation. The specific working process is as follows: when the heat source heats the evaporation section, the working liquid absorbs heat and vaporizes into steam. During the vaporization process, a large amount of the latent heat of the liquid is absorbed, keeping the temperature of the evaporation section stable. The steam flows rapidly to the condensation section under the action of pressure difference. After the steam reaches the condensation section, it condenses into liquid, releasing the latent heat of vaporization. Then the condensate flows back to the evaporation section, completing the cycle.

[0036] The air drying component 400 is located in the airflow circulation channel 110 and is used to dry the passing airflow.

[0037] It should be noted that the air drying component 400 can specifically adopt a structure in which the filter box is filled with drying materials such as activated alumina, silica gel or activated carbon.

[0038] During operation, the first fan 200 drives the airflow inside the cabinet 100 into the airflow circulation channel 110. The airflow is cooled by the evaporation section of the heat pipe assembly 300. At the same time, after being dried by the air drying component 400, it is circulated back into the cabinet 100, thereby achieving cooling and drying of the air inside the cabinet 100. Therefore, this utility model takes into account both the requirements of efficient heat dissipation and moisture prevention, and can ensure the stable operation of electrical components in the electrical control cabinet, thereby ensuring the safe operation of the power plant.

[0039] It should be noted that in this embodiment, the first vent 111 can be used as an air inlet and the second vent 112 as an air outlet. In this case, the airflow in the air circulation channel 110 flows from top to bottom. Alternatively, the second vent 112 can be used as an air inlet and the first vent 111 as an air outlet. In this case, the airflow in the air circulation channel 110 flows from bottom to top.

[0040] In some embodiments, the width of the upper and lower ends of the airflow circulation channel 110 gradually increases to the width of the cabinet 100, and both the first vent 111 and the second vent 112 are provided with mesh holes that are distributed along the width direction of the cabinet 100. This design allows air within the width range of the cabinet 100 to enter the airflow circulation channel 110 evenly, and the air after passing through the airflow circulation channel 110 to enter the width range of the cabinet 100 evenly, thus making the airflow circulation between the interior of the cabinet 100 and the airflow circulation channel 110 more uniform.

[0041] In some embodiments, a heat dissipation channel 120 is provided on the outer side of the airflow circulation channel 110, and a third vent 121 and a fourth vent 122 are provided at the upper and lower ends of the heat dissipation channel 120, respectively, and the condensation section of the heat pipe assembly 300 extends into the heat dissipation channel 120.

[0042] It also includes a second fan 500, which is located in the heat dissipation channel 120 and is used to drive airflow along the heat dissipation channel 120.

[0043] In this embodiment, by setting a second fan 500 to force air cooling of the condenser section of the heat pipe assembly 300, the heat dissipation efficiency of the heat pipe assembly 300 can be improved, thereby improving the heat dissipation efficiency of the power plant electrical control cabinet.

[0044] It is understood that in this embodiment, the third vent 121 can be used as an air inlet and the fourth vent 122 as an air outlet, in which case the airflow in the heat dissipation channel 120 flows from top to bottom, or the fourth vent 122 can be used as an air inlet and the third vent 121 as an air outlet, in which case the airflow in the heat dissipation channel 120 flows from bottom to top.

[0045] To prevent debris from entering the heat dissipation channel 120, mesh is provided at the third vent 121 and the fourth vent 122.

[0046] To improve the heat exchange efficiency between air and heat pipe assembly 300, both the evaporation section and the condensation section of heat pipe assembly 300 are provided with heat dissipation fins 310 extending vertically.

[0047] In some embodiments, an airflow circulation housing 113 is integrally provided on the rear side of the cabinet 100, an airflow circulation channel 110 is formed inside the airflow circulation housing 113, and a heat pipe mounting port 114 is provided outside the airflow circulation housing 113.

[0048] A heat pipe housing 123 is installed outside the heat pipe mounting port 114 of the airflow circulation housing 113. A heat dissipation channel 120 is formed inside the heat pipe housing 123. The middle part of the heat pipe assembly 300 is fixed to the side plate of the heat pipe housing 123 located on the side of the heat pipe mounting port 114.

[0049] Preferably, the heat pipe housing 123 and the airflow circulation housing 113 are connected by bolts.

[0050] In this embodiment, the airflow circulation housing 113 and the cabinet 100 are designed as a single unit, and the heat pipe assembly 300 and the heat pipe housing 123 are designed as a single unit. At the same time, a heat pipe mounting port 114 is provided on the outside of the airflow circulation housing 113. When installing the heat pipe assembly 300, the heat pipe assembly 300 is inserted into the airflow circulation channel 110 through the heat pipe mounting port 114, and then the heat pipe housing 123 is sealed on the outside of the heat pipe mounting port 114. The heat pipe housing 123 is then fixed to the airflow circulation housing 113 with bolts. The heat pipe assembly 300 is easy to install and easy to disassemble.

[0051] In some embodiments, a pair of drawer tracks 115 are provided on the inner walls of the left and right sides of the airflow circulation housing 113, and a drawer opening 116 is provided on the side wall of the rear side of the airflow circulation housing 113 at the position corresponding to the drawer track 115. The air drying component 400 passes through the drawer opening 116, and its two sides are respectively installed on the drawer track 115 on the corresponding side. The outer end of the air drying component 400 is provided with an outer sealing plate 410 that blocks the drawer opening 116.

[0052] The air dryer 400 needs to be replaced regularly. With this design, when replacing the air dryer 400, you only need to pull the old air dryer 400 out of the drawer opening 116 and then insert the new air dryer 400 into the drawer opening 116. The replacement of the air dryer 400 is convenient and quick.

[0053] To facilitate the removal of the air drying component 400, the outer sealing plate 410 is provided with a handle 420.

[0054] In some embodiments, the front side of the cabinet 100 is provided with a cabinet door 130 and an anti-misoperation lock 131 for locking the cabinet door 130.

[0055] The anti-misoperation lock 131 is a core protective device in power systems used to prevent human error and ensure the safety of equipment and personnel. It is a well-known product on the market.

[0056] The anti-misoperation lock 131 can be a mechanical program lock, which works by controlling the operation process through the unique coding sequence of the mechanical keys. Each key corresponds to a specific device's lock and must be used in a preset order (such as the steps on the operation ticket). If the previous step is not completed, the key cannot be retrieved to proceed to the next step.

[0057] The anti-misoperation lock 131 can also be an electronic anti-misoperation lock, which verifies the correctness of the operation ticket through software logic. Before operation, the maintenance personnel enter the operation steps into the background system. The system generates a dynamic authorization code (such as a QR code, RFID key, or Bluetooth signal) based on the power grid topology and anti-misoperation rules (such as "the operation of the bus disconnect switch requires the corresponding circuit breaker to be in the open position"). This code is then transmitted to the lock via a handheld terminal (PDA) to complete the unlocking.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. An electrical control cabinet for a power plant, characterized in that, include: The cabinet has an interior for housing electrical components. The rear of the cabinet has an airflow circulation channel, the upper part of the cabinet has a first ventilation opening between it and the airflow circulation channel, and the lower part of the cabinet has a second ventilation opening between it and the airflow circulation channel. The first fan is located in the airflow circulation channel and is used to drive the airflow to flow along the airflow circulation channel; A heat pipe assembly, wherein the evaporation section of the heat pipe assembly extends into the airflow circulation channel, and the condensation section of the heat pipe assembly extends obliquely upward and extends out of the airflow circulation channel; as well as, An air drying element is disposed within the airflow circulation channel and is used to dry the passing airflow.

2. The power plant electrical control cabinet according to claim 1, characterized in that, The width of the airflow circulation channel gradually increases to the width of the cabinet at both the top and bottom ends, and the first and second ventilation openings are provided with mesh holes that are spread along the width direction of the cabinet.

3. The power plant electrical control cabinet according to claim 1, characterized in that, The airflow circulation channel is provided with a heat dissipation channel on its outer side. The heat dissipation channel is provided with a third vent and a fourth vent at its upper and lower ends, respectively. The condensation section of the heat pipe assembly extends into the heat dissipation channel. It also includes a second fan, which is located in the heat dissipation channel and is used to drive airflow along the heat dissipation channel.

4. The power plant electrical control cabinet according to claim 3, characterized in that, Both the third and fourth ventilation openings are equipped with mesh.

5. The power plant electrical control cabinet according to claim 3, characterized in that, The heat pipe assembly has vertically extending heat dissipation fins in both the evaporation and condensation sections.

6. The power plant electrical control cabinet according to claim 3, characterized in that, The rear side of the cabinet is integrally provided with an airflow circulation shell, the airflow circulation channel is formed inside the airflow circulation shell, and a heat pipe installation port is provided outside the airflow circulation shell. A heat pipe housing is installed outside the heat pipe mounting port of the airflow circulation housing, and the heat dissipation channel is formed inside the heat pipe housing. The middle part of the heat pipe assembly is fixed to the side plate of the heat pipe housing located on the side of the heat pipe mounting port.

7. The power plant electrical control cabinet according to claim 6, characterized in that, The heat pipe housing and the airflow circulation housing are connected by bolts.

8. The power plant electrical control cabinet according to claim 6, characterized in that, A pair of drawer tracks are provided on the inner walls of the left and right sides of the airflow circulation housing. A drawer opening is provided on the rear side wall of the airflow circulation housing corresponding to the position of the drawer tracks. The air drying component is inserted into the drawer opening, and its two sides are respectively installed on the drawer tracks on the corresponding sides. The outer end of the air drying component is provided with an outer sealing plate that blocks the drawer opening.

9. The power plant electrical control cabinet according to claim 8, characterized in that, The outer sealing plate is equipped with a handle.

10. The power plant electrical control cabinet according to claim 1, characterized in that, The cabinet is equipped with a cabinet door on the front side and a lock to prevent accidental operation for locking the cabinet door.

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