Low-voltage reactive power compensation cabinet with water-cooling circulation cooling mechanism

By introducing a water-cooled circulating cooling mechanism into the low-voltage reactive power compensation cabinet, the problem of low heat dissipation efficiency of the low-voltage reactive power compensation cabinet is solved by using cold water circulation and heat exchange for cooling, combined with water-absorbing resin blocks to prevent condensation and infrared temperature sensors for monitoring, thus achieving efficient heat dissipation and real-time monitoring of capacitor temperature.

CN223680629UActive Publication Date: 2025-12-16NANJING QIANXIN ELECTRIC APPLIANCE EQUIP CO LTD
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Patent Information

Application Number
CN202423085154.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-12-16
Estimated Expiration
2034-12-13

AI Technical Summary

Technical Problem

The existing low-voltage reactive power compensation cabinet lacks water-cooled circulation cooling function, resulting in low heat dissipation efficiency and failing to further improve power utilization efficiency.

Method used

A water-cooled circulating cooling mechanism was designed, including a rear partition, side partitions, inner coil, return water pipe, inlet water pipe, outer frame, inlet water tank, micro pump, return water tank, conduit, metal fins, and cooling fan. Cooling is achieved through cold water circulation and heat exchange. It is equipped with water-absorbing resin blocks and vents to prevent condensation. The capacitor temperature is monitored in real time by an infrared temperature sensor and an LCD screen.

Benefits of technology

It achieves water-cooled circulation cooling function, improves heat dissipation efficiency, prevents condensation, provides real-time feedback of capacitor temperature, and enhances the operational stability and energy utilization efficiency of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a low-voltage reactive power compensation cabinet with a water-cooling circulation cooling mechanism, which relates to the technical field of compensation cabinets and comprises a cabinet body, a cabinet door is hinged to the left side of the front end of the cabinet body, and the water-cooling circulation cooling mechanism is arranged at the bottom end in the cabinet body. According to the low-voltage reactive power compensation cabinet with the water-cooling circulation cooling mechanism, the rear partition plate, the side partition plate, the inner coil pipe, the water return pipe and the water inlet pipe are arranged, when the low-voltage reactive power compensation cabinet is used, the rear partition plate is attached to the back of a capacitor, the micro pump pumps out cold water in the water inlet tank, and the cold water is conveyed to the inner coil pipe through the water inlet pipe and then flows back to the water return tank through the inner coil pipe and the water return pipe; water in the water return tank flows back to the water inlet tank through the conducting pipe, in the backflow process, the cooling fan keeps blowing the conducting pipe and the metal fins, water flow is cooled through heat exchange, the low-temperature state is kept all the time, the water-cooling circulation cooling function is achieved, and the problem that the device does not have the water-cooling circulation cooling function is solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to compensation cabinet technical field, concretely is a low voltage reactive compensation cabinet with water cooling circulation cooling mechanism. BACKGROUND

[0002] The low voltage reactive compensation cabinet is a set of low voltage cabinet specially provided for the power distribution system to provide reactive power, aiming at correcting the system power factor and improving the power utilization efficiency.

[0003] The low voltage reactive compensation cabinet body is made of steel cabinet body of cold-rolled steel, internally installs lightning arrester, knife fusing switch, current transformer, miniature circuit breaker, AC contactor, thermal relay, power capacitor and other electronic elements, wherein the capacitor is the main heating part, and currently the heat dissipation of the low voltage reactive compensation cabinet mostly adopts air cooling, utilizes the fan to form air circulation in the cabinet body, and then reduces the internal temperature, and the heat exchange efficiency of air is low, and there is still further improvement space on the actual cooling effect, and the function of water cooling circulation cooling is not possessed.

[0004] Now, a new low voltage reactive compensation cabinet with water cooling circulation cooling mechanism is provided to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model discloses a low voltage reactive compensation cabinet with water cooling circulation cooling mechanism to solve the problem of not having the function of water cooling circulation cooling in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a low voltage reactive compensation cabinet with water cooling circulation cooling mechanism, including the cabinet body, the left side hinged with the cabinet door at the front end of the cabinet body, the bottom end of the inside of the cabinet body is provided with water cooling circulation cooling mechanism.

[0007] The water cooling circulation cooling mechanism includes rear baffle, the rear baffle is fixedly connected at the bottom end in the inside of the cabinet body, the front end of the rear baffle is fixedly connected with multiple groups of side baffle, the inside of the side baffle is provided with inner coil pipe, the bottom end in the inside of the rear baffle is horizontally provided with backwater pipe, the top end in the inside of the rear baffle is horizontally provided with inlet pipe, the right side of the cabinet body is fixedly connected with two groups of fixed frame, and the one end between two groups of the fixed frame is fixedly connected with outer frame, the front end in the inside of the outer frame is fixedly connected with inlet tank, the top end of the inlet tank is installed with miniature pump, the rear end in the inside of the outer frame is fixedly connected with backwater tank, multiple groups of lead-through pipes are welded longitudinally between the inlet tank and backwater tank, multiple groups of metal fins are fixedly connected between the lead-through pipes two two, and the right side of the lead-through pipe is installed with cooling fan.

[0008] As a further technical scheme of the utility model, the upper and lower ends of the rear baffle and side baffle are flush, and the inside of the inner coil pipe, backwater pipe and inlet pipe is communicated.

[0009] As a further technical scheme of the utility model, the water inlet pipe and the micro pump are connected, and the water return pipe and the water return tank are communicated.

[0010] As a further technical scheme of the utility model, the inside of the water inlet tank, the water return tank and the through pipe are communicated, and the metal fins are arranged at equal intervals.

[0011] As a further technical scheme of the utility model, the rear end of the cabinet body is fixedly connected with a fixed plate, the front end of the fixed plate is fixedly connected with a placing groove, the bottom end of the inside of the placing groove horizontally places a plurality of groups of water absorption resin blocks, and the front end of the placing groove is provided with a plurality of groups of air permeation eyes.

[0012] As a further technical scheme of the utility model, the air permeation eyes penetrate the inside and outside of the placing groove, and the outside of the water absorption resin block is covered with non-woven fabric.

[0013] As a further technical scheme of the utility model, the bottom of the front end of the cabinet door is fixedly connected with four groups of fixed shells, the rear end of the fixed shell is fixedly connected with a liquid crystal display screen, the front end of the fixed shell is installed with an infrared temperature measurement sensor, and the bottom end of the fixed shell is movably connected with a power supply wire.

[0014] As a further technical scheme of the utility model, the rear end of the liquid crystal display screen is flush with the rear end of the cabinet door, and the liquid crystal display screen, the infrared temperature measurement sensor and the power supply wire are electrically connected.

[0015] Compared with the prior art, the low-voltage reactive power compensation cabinet with the water cooling circulation cooling mechanism has the advantages that the low-voltage reactive power compensation cabinet not only realizes the function of water cooling circulation cooling, but also realizes the functions of internal moisture absorption and dehumidification and capacitor temperature feedback.

[0016] (1) by setting up rear baffle, side baffle, inner coil pipe, water return pipe, water inlet pipe, outer frame, water inlet tank, micro pump, water return tank, through pipe, metal fin, cooling fan and fixing frame, when using, the cabinet body and the cabinet door are used as the main body of the low-voltage reactive power compensation cabinet, and can bear the installation of lightning arresters, knife-fuse switches, current transformers, micro circuit breakers, AC contactors, thermal relays, power capacitors and other electronic elements, wherein the power capacitors are separated by the side baffle, the rear baffle is attached to the back of the capacitor, the micro pump draws out the cold water in the water inlet tank, and the cold water is transported to the inner coil pipe through the water inlet pipe, and then flows back to the water return tank through the inner coil pipe and the water return pipe, and the water in the water return tank flows back to the water inlet tank through the through pipe, in the process of flowing back, the cooling fan blows the through pipe and the metal fin, and the water flow is cooled through heat exchange, so that the water flow is always kept at a low temperature, and the function of water cooling circulation cooling is realized.

[0017] (2) by being provided with fixed plate, placement groove, water absorption resin block and air permeable eye, when using, the cabinet body and the cabinet door are used as the main body of the low-voltage reactive power compensation cabinet, the cabinet door is closed daily, the water absorption resin block in the placement groove has strong water absorption, can quickly capture the water molecules in the cabinet body, prevent the water molecules from condensation on the low-temperature back baffle and side baffle, the opening at the top of the placement groove and the air permeable eye can increase the contact between the water absorption resin block and the air in the cabinet body, realize the internal moisture absorption and dehumidification function;

[0018] (3) by being provided with fixed shell, liquid crystal display screen, infrared temperature sensor and power supply wiring, when using, with the cabinet door closed, four groups of infrared temperature sensors are opposite to four groups of capacitors, the surface temperature of the capacitors is monitored in real time, and the data is fed back on the liquid crystal display screen, which is convenient for the inspection personnel to check, the power supply wiring is convenient for the access of the power supply, and the capacitor temperature feedback function is realized. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a front view structure schematic diagram of the utility model;

[0020] Figure 2 It is a side baffle side view enlarged structure schematic diagram of the utility model;

[0021] Figure 3 It is an outer frame side view enlarged structure schematic diagram of the utility model;

[0022] Figure 4 It is a placement groove local top view enlarged structure schematic diagram of the utility model;

[0023] Figure 5 It is a fixed shell side view enlarged structure schematic diagram of the utility model.

[0024] In the drawing: 1, cabinet body; 2, back baffle; 3, side baffle; 4, inner coil; 5, backwater pipe; 6, water inlet pipe; 7, outer frame; 8, water inlet tank; 9, micro pump; 10, backwater tank; 11, lead-through pipe; 12, metal fin; 13, heat dissipation fan; 14, fixed frame; 15, cabinet door; 16, fixed plate; 17, placement groove; 18, water absorption resin block; 19, air permeable eye; 20, fixed shell; 21, liquid crystal display screen; 22, infrared temperature sensor; 23, power supply wiring. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range protected by the utility model.

[0026] Embodiment: please refer to Figures 1-5 A low-voltage reactive power compensation cabinet with a water-cooled circulating cooling mechanism, comprising a cabinet body 1, a cabinet door 15 hinged to the left side of the front end of the cabinet body 1, and a water-cooled circulating cooling mechanism arranged at the bottom end inside the cabinet body 1.

[0027] Please refer to Figures 1-5 The low-voltage reactive power compensation cabinet with a water-cooled circulating cooling mechanism further comprises a water-cooled circulating cooling mechanism, which comprises a rear partition plate 2 fixedly connected to the bottom end inside the cabinet body 1, a plurality of side partition plates 3 fixedly connected to the front end of the rear partition plate 2, an inner coil pipe 4 arranged inside the side partition plate 3, a return water pipe 5 horizontally arranged at the bottom end inside the rear partition plate 2, a water inlet pipe 6 horizontally arranged at the top end inside the rear partition plate 2, two groups of fixing frames 14 fixedly connected to the right side of the cabinet body 1, an outer frame 7 fixedly connected between one end of the two groups of fixing frames 14, a water inlet tank 8 fixedly connected to the front end inside the outer frame 7, a micro pump 9 mounted on the top end of the water inlet tank 8, a return water tank 10 fixedly connected to the rear end inside the outer frame 7, a plurality of through pipes 11 longitudinally welded between the water inlet tank 8 and the return water tank 10, a plurality of metal fins 12 fixedly connected between the through pipes 11, and a cooling fan 13 mounted on the right side of the through pipes 11.

[0028] The upper and lower ends of the rear partition plate 2 and the side partition plate 3 are flush, the interiors of the inner coil pipe 4, the return water pipe 5, and the water inlet pipe 6 are connected, the water inlet pipe 6 is connected to the micro pump 9, the return water pipe 5 is connected to the return water tank 10, the interiors of the water inlet tank 8, the return water tank 10, and the through pipes 11 are connected, and the metal fins 12 are arranged at equal intervals, so that the low temperature of the capacitor can be maintained through cold water circulation.

[0029] Specifically, as shown in Figure 1 , Figure 2 and Figure 3 , the power capacitor is separated by the side partition plate 3, the rear partition plate 2 is attached to the back of the capacitor, the micro pump 9 draws the cold water inside the water inlet tank 8, transports it to the inner coil pipe 4 through the water inlet pipe 6, and then returns it to the return water tank 10 through the inner coil pipe 4 and the return water pipe 5, the water in the return water tank 10 is returned to the water inlet tank 8 through the through pipes 11, and in the process of returning, the cooling fan 13 blows on the through pipes 11 and the metal fins 12 to lower the temperature of the water flow through heat exchange, thereby maintaining a low temperature state.

[0030] A fixing plate 16 is fixedly connected to the rear end inside the cabinet body 1, a placing groove 17 is fixedly connected to the front end of the fixing plate 16, a plurality of water-absorbing resin blocks 18 are horizontally placed at the bottom end inside the placing groove 17, a plurality of air vents 19 are arranged at the front end of the placing groove 17, the air vents 19 penetrate the inner and outer surfaces of the placing groove 17, and the water-absorbing resin blocks 18 are covered with non-woven fabric, which can keep the internal environment of the equipment dry.

[0031] Specifically, as shown in Figure 1 and Figure 4 The water-absorbing resin block 18 in the placing groove 17 has strong water absorption and can quickly capture water molecules in the cabinet 1, preventing water molecules from condensing on the low-temperature back partition plate 2 and side partition plate 3, and the opening at the top of the placing groove 17 and the air vent 19 can increase the contact between the water-absorbing resin block 18 and the air in the cabinet 1.

[0032] The bottom of the front end of the cabinet door 15 is fixedly connected with four groups of fixed shells 20, the rear end of the fixed shell 20 is fixedly connected with a liquid crystal display screen 21, the front end of the fixed shell 20 is provided with an infrared temperature sensor 22, the bottom end of the fixed shell 20 is movably connected with a power supply wire 23, the rear end of the liquid crystal display screen 21 is flush with the rear end of the cabinet door 15, and the liquid crystal display screen 21, the infrared temperature sensor 22 and the power supply wire 23 are electrically connected, so that the temperature of the capacitor can be fed back in real time.

[0033] Specifically, as shown in Figure 1 and Figure 5 The four groups of infrared temperature sensors 22 are opposite to the four groups of capacitors, the surface temperature of the capacitors is monitored in real time, data is fed back on the liquid crystal display screen 21, and the power supply wire 23 facilitates the access of the power supply.

[0034] Working principle: when the utility model is used, firstly, the cabinet 1 and the cabinet door 15 serve as the main body of the low-voltage reactive power compensation cabinet and bear the installation of lightning arresters, knife-fuse switches, current transformers, miniature circuit breakers, AC contactors, thermal relays and power capacitors, wherein the power capacitors are separated by the side partition plate 3, the back partition plate 2 is attached to the back of the capacitors, the miniature pump 9 draws out the cold water in the water inlet tank 8, delivers the cold water to the inner coil pipe 4 through the water inlet pipe 6, and then returns the cold water to the water return tank 10 through the inner coil pipe 4 and the water return pipe 5; the water in the water return tank 10 returns to the water inlet tank 8 through the through pipe 11; in the return process, the cooling fan 13 blows the through pipe 11 and the metal fins 12 to lower the temperature of the water flow through heat exchange, and the temperature of the water flow is always kept low. The cabinet 1 and the cabinet door 15 serve as the main body of the low-voltage reactive power compensation cabinet, the cabinet door 15 is normally closed, the water-absorbing resin block 18 in the placing groove 17 has strong water absorption and can quickly capture water molecules in the cabinet 1, preventing water molecules from condensing on the low-temperature back partition plate 2 and side partition plate 3, and the opening at the top of the placing groove 17 and the air vent 19 can increase the contact between the water-absorbing resin block 18 and the air in the cabinet 1. With the cabinet door 15 closed, the four groups of infrared temperature sensors 22 are opposite to the four groups of capacitors, the surface temperature of the capacitors is monitored in real time, data is fed back on the liquid crystal display screen 21, and the power supply wire 23 facilitates the access of the power supply.

[0035] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A low-voltage reactive power compensation cabinet with a water-cooled circulating cooling mechanism, comprising a cabinet body (1), characterized in that: The left side of the front end of the cabinet body (1) is hinged with a cabinet door (15), and the bottom end of the inside of the cabinet body (1) is provided with a water-cooling circulation cooling mechanism. The water-cooling circulation cooling mechanism comprises a rear baffle (2) fixedly connected to the bottom end of the inside of the cabinet body (1), a plurality of side baffles (3) fixedly connected to the front end of the rear baffle (2), an inner coil pipe (4) arranged in the inside of the side baffle (3), a backwater pipe (5) horizontally arranged at the bottom end of the inside of the rear baffle (2), a water inlet pipe (6) horizontally arranged at the top end of the inside of the rear baffle (2), two groups of fixing frames (14) fixedly connected to the right side of the cabinet body (1), an outer frame (7) fixedly connected between one end of the two groups of fixing frames (14), a water inlet tank (8) fixedly connected to the front end of the inside of the outer frame (7), a micro pump (9) mounted on the top end of the water inlet tank (8), a backwater tank (10) fixedly connected to the rear end of the inside of the outer frame (7), a plurality of through pipes (11) longitudinally welded between the water inlet tank (8) and the backwater tank (10), a plurality of metal fins (12) fixedly connected between the through pipes (11) two by two, and a heat dissipation fan (13) mounted on the right side of the through pipe (11).

2. The low-voltage reactive power compensation cabinet with a water-cooling circulation cooling mechanism according to claim 1, characterized in that: The upper and lower ends of the rear baffle (2) and the side baffle (3) are flush, and the inside of the inner coil pipe (4), the backwater pipe (5) and the water inlet pipe (6) are connected.

3. The low-voltage reactive power compensation cabinet with a water-cooling circulation cooling mechanism according to claim 1, characterized in that: The water inlet pipe (6) is connected with the micro pump (9), and the backwater pipe (5) and the backwater tank (10) are connected.

4. The low-voltage reactive power compensation cabinet with a water-cooling circulation cooling mechanism according to claim 1, characterized in that: The inside of the water inlet tank (8), the backwater tank (10) and the through pipe (11) are connected, and the metal fins (12) are arranged at equal intervals.

5. The low-voltage reactive power compensation cabinet with a water-cooling circulation cooling mechanism according to claim 1, characterized in that: A fixed plate (16) is fixedly connected to the rear end of the inside of the cabinet body (1), a placing groove (17) is fixedly connected to the front end of the fixed plate (16), a plurality of water-absorbing resin blocks (18) are horizontally placed at the bottom end of the inside of the placing groove (17), and a plurality of air permeation eyes (19) are arranged at the front end of the placing groove (17).

6. The low-voltage reactive power compensation cabinet with a water-cooling circulation cooling mechanism according to claim 5, characterized in that: The air permeation eyes (19) penetrate through the inner and outer surfaces of the placing groove (17), and the outside of the water-absorbing resin block (18) is covered with non-woven fabric.

7. The low-voltage reactive power compensation cabinet with a water-cooling circulation cooling mechanism according to claim 1, characterized in that: Four groups of fixed shells (20) are fixedly connected to the bottom of the front end of the cabinet door (15), a liquid crystal display screen (21) is fixedly connected to the rear end of the fixed shell (20), an infrared temperature measurement sensor (22) is mounted on the front end of the fixed shell (20), and a power supply wire (23) is movably connected to the bottom end of the fixed shell (20).

8. The low-voltage reactive power compensation cabinet with a water-cooling circulation cooling mechanism according to claim 7, characterized in that: The rear end of the liquid crystal display screen (21) is flush with the rear end of the cabinet door (15), and the liquid crystal display screen (21), the infrared temperature measurement sensor (22) and the power supply wire (23) are electrically connected.