A high-frequency power supply integrated heat sink for an electrostatic precipitator

Abstract

The utility model discloses a static precipitator high -frequency power integration radiator, including the cabinet and the heat dissipation box, the static precipitator high -frequency power and first heat exchanger are installed in the cabinet, first heat exchanger is equipped with first import, first export, the inside of heat dissipation box is equipped with second heat exchanger, and second heat exchanger is equipped with second import and second export, first import is connected with second export, and first export is connected with second import, and the heat exchange fin of second heat exchanger is the whole loop from second import to second export and is the integral structure, the bottom support frame is established in heat dissipation box bottom, and the bottom of heat dissipation box is provided with the air inlet, and the top of heat dissipation box is provided with fan assembly, and fan assembly is located the top of second heat exchanger. The cooling mode of the utility model combines the advantage of liquid cooling and air cooling, does not inhale the air containing dust particles into the power supply inside, and does not cause the influence to the electronic circuit that needs cooling in the power supply inside.

Description

Technical Field

[0001] This utility model relates to the field of high-frequency power supplies, specifically to an integrated heat sink for a high-frequency power supply in an electrostatic precipitator. Background Technology

[0002] When the high-frequency power supply of an electrostatic precipitator is working, it generates a lot of heat due to operating under high frequency and high voltage conditions. The cooling methods for high-frequency power supplies are basically divided into two types: air cooling and liquid cooling. The heat sink of the existing electrostatic precipitator high-frequency power supply consists of three sets of heat sinks. Each set of heat sinks consists of a cooling fan, two heat sink fins, and a heat sink housing; the two heat sink fins are built into the two sides of the heat sink housing.

[0003] The existing two heatsinks are connected by EPDM tubing. Each heatsink has one inlet and one outlet port, with an outer diameter of one inch (33mm). The EPDM tubing is imported from the USA, with an inner diameter of one inch (25.4mm). Therefore, a reducer is required between the tubing and the heatsink ports to connect the tubing and the heatsink ports. This reducer is a non-standard product, designed by the original equipment manufacturer and manufactured using 3D printing.

[0004] The three heat sinks are connected via EPDM tubing, and then further connected to the high-frequency power supply via two EMPD tubing. All tubing connections are secured with hose clamps.

[0005] This modular design makes replacement easier when a single heatsink malfunctions, but it also increases the number of potential leak points. For example, with six heatsinks, there are a total of 24 potential leak points. A single high-frequency power supply with only external heatsinks has 24 potential leak points; with 60 high-frequency power supplies, this amounts to a total of 1440 potential leak points. This poses a significant risk and workload to the unit's operation.

[0006] In addition, some existing heat sinks are designed to be located inside the cabinet and dissipate heat through fans. In areas with a lot of impurities such as willow catkins, these impurities will be brought into the cabinet. After years of use, the accumulation of dust and other impurities in the cabinet will significantly reduce the heat dissipation effect and may also easily damage the components inside the cabinet.

[0007] Therefore, there is an urgent need for an integrated high-frequency power supply heat sink for electrostatic precipitators to solve at least one of the above problems. Utility Model Content

[0008] This utility model is proposed to alleviate or solve at least one aspect or point of the above-mentioned problems.

[0009] This utility model discloses an integrated high-frequency power supply heat sink for an electrostatic precipitator, comprising: a cabinet and a heat dissipation box; The cabinet is equipped with a high-frequency power supply for an electrostatic precipitator and a first heat exchanger; the first heat exchanger has a first inlet and a first outlet; The heat exchanger is located inside the heat exchange box. The second heat exchanger has a second inlet and a second outlet. The first inlet is connected to the second outlet, and the first outlet is connected to the second inlet. The heat exchanger fins of the second heat exchanger, from the second inlet to the second outlet, form a single integrated structure. The heat exchanger has a bottom support frame at the bottom, an air inlet at the bottom, and a fan assembly at the top, which is located above the second heat exchanger. The cabinet is also equipped with a pump, which circulates the coolant between the first heat exchanger and the second heat exchanger.

[0010] Preferably, the heat exchanger fins of the first heat exchanger are an integral structure from the first inlet to the first outlet; Preferably, the connection between the first heat exchanger and the second heat exchanger is made of black rubber tubing.

[0011] Preferably, the bottom of the heat sink is also provided with an air intake grille that matches the air intake.

[0012] Preferably, the air intake grille can slide relative to the opening.

[0013] Preferably, there are two fan assemblies, both located above the second heat exchanger.

[0014] Preferably, the fan assembly includes a fan and a casing covering the outside of the fan.

[0015] Preferably, only one second heat exchanger is installed inside the heat sink.

[0016] Preferably, the heat dissipation box is located at the top of the cabinet, and the support frame below is fixed to the top of the cabinet.

[0017] Preferably, the heat dissipation box is located on one side of the cabinet.

[0018] This utility model adopts an external integrated heat sink, which uses coolant to carry the heat generated inside the high-frequency power supply to the outside of the power supply, and then conducts the heat into the air through the heat sink fan.

[0019] This novel cooling method combines the advantages of liquid cooling and air cooling, preventing the intake of dust-laden air into the power supply and avoiding any impact on the internal electronic circuits requiring cooling. It operates effectively even in dirty industrial environments or during the polluted willow catkin season in northern regions. Furthermore, the integrated structure of the heat exchange fins effectively reduces potential leakage points. Attached Figure Description

[0020] Figure 1This is a schematic diagram of an integrated high-frequency power supply heat sink for an electrostatic precipitator, which is an exemplary embodiment of the present invention.

[0021] Figure 2 This is a front view schematic diagram of a heat sink box, which is an exemplary embodiment of the present invention.

[0022] Figure 3 This is a side view of a heat sink as an exemplary embodiment of the present invention.

[0023] Figure 4 This is a top view of a heat sink, which is an exemplary embodiment of the present invention.

[0024] Wherein: 1-cabinet, 2-first heat exchanger, 21-first inlet, 22-first outlet, 3-pump, 4-fan assembly, 5-second heat exchanger, 51-second inlet, 52-second outlet, 6-grating, 7-support frame, 8-heat dissipation box. Detailed Implementation

[0025] The following description of embodiments of the present invention with reference to the accompanying drawings is intended to explain the overall inventive concept of the present invention and should not be construed as a limitation thereof. In this invention, the same reference numerals denote the same or similar components.

[0026] The features described herein may be implemented in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided only to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein, which will become clear upon understanding the disclosure of this utility model.

[0027] Although terms such as “first,” “second,” and “third” may be used herein to describe various components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts should not be limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another.

[0028] In the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to," or "bonded to" another element, the element may be directly "on" another element, directly "connected to," or "bonded to" the other element, or one or more other elements may be present in between. Conversely, when an element is described as being "directly on" another element, "directly connected to," or "directly bonded to" another element, no other elements may be present in between.

[0029] The terminology used herein is for the purpose of describing various examples only and is not intended to limit disclosure. Unless the context clearly indicates otherwise, the singular form is intended to include the plural form as well. The terms “comprising,” “including,” and “having” indicate the presence of the described features, quantities, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0030] To enable those skilled in the art to use the content of this utility model, the following exemplary embodiments may be provided in conjunction with specific application scenarios, specific systems, device and component parameters, and specific connection methods. However, these embodiments are merely examples for those skilled in the art, and the general principles defined herein can be applied to other embodiments and application scenarios without departing from the spirit and scope of this utility model.

[0031] According to an exemplary embodiment of the present invention: as follows Figures 1-4 As shown, the present invention discloses an integrated high-frequency power supply radiator for an electrostatic precipitator, comprising: a cabinet 1 and a heat dissipation box 8; the cabinet 1 houses the high-frequency power supply for the electrostatic precipitator and a first heat exchanger 2; the first heat exchanger 2 has a first inlet 21 and a first outlet 22; the heat dissipation box 8 houses a second heat exchanger 5, which has a second inlet 51 and a second outlet 52; the first inlet 21 is connected to the second outlet 52, and the first outlet 22 is connected to the second inlet 51.

[0032] The heat exchanger 8 has a support frame 7 at the bottom and an air inlet at the bottom. The heat exchanger 8 has a fan assembly 4 at the top and is located above the second heat exchanger 5.

[0033] The cabinet 1 is also equipped with a pump 3, which circulates the coolant between the first heat exchanger 2 and the second heat exchanger 5.

[0034] According to an exemplary embodiment of the present invention, such as Figures 1-4 As shown, the heat exchanger fins of the second heat exchanger 5, from the second inlet 51 to the second outlet 52, form a single integrated structure. Preferably, the heat exchanger fins of the first heat exchanger 2, from the first inlet 21 to the first outlet 22, form a single integrated structure. This configuration, unlike existing parallel connection of multiple heat exchanger fins, reduces the number of leakage points. For example, the connection between the first heat exchanger 2 and the second heat exchanger 5 uses a black rubber tubing. With this configuration, only two leakage points are formed when the first heat exchanger 2 and the second heat exchanger 5 are connected.

[0035] According to an exemplary embodiment of the present invention, such as Figures 1-4As shown, the bottom of the heat sink 8 is also equipped with an air intake grille that matches the opening. The air intake grille can be any existing grille 6, such as an 80-mesh metal grille 6.

[0036] Optionally, the air intake grille 6 can slide relative to the opening. This sliding can be achieved using existing sliding rail and slider mechanisms, such as guide rails on both sides of the bottom opening of the radiator 8 for the grille 6 to slide on, and sliders on both sides of the grille 6 that cooperate with the guide rails. Since the sliding structure achieved by the guide rails and sliders is an existing structure, it will not be described in detail here.

[0037] like Figures 1-4 As shown, there are two fan assemblies 4, both located above the second heat exchanger 5. Each fan assembly 4 includes a fan and an outer casing covering the fan. The outer casing uses existing fan casings, which may have a mesh structure to prevent external debris from entering the fan.

[0038] According to an exemplary embodiment of the present invention, such as Figures 1-4 As shown, inside cabinet 1, the first heat exchanger 2 exchanges heat with the high-frequency power supply inside cabinet 1. The heat exchange between the two uses existing methods, which will not be described in detail here. For example, the first heat exchanger 2 can be a coil-type heat exchanger. Figures 1-4 As shown, only one second heat exchanger is installed in the heat dissipation box 8. The second heat exchanger 5 can be a coil heat exchanger or a finned heat exchanger.

[0039] According to an exemplary embodiment of the present invention, such as Figures 1-4 As shown, when this utility model is in use, pump 3 is started, and coolant circulates between the first heat exchanger 2 and the second heat exchanger 5. For example, the coolant can be water. The hot water outlet of the first heat exchanger 2 enters the second heat exchanger 5 through the first outlet 22 and the second inlet 51. During the flow through the second heat exchanger 5, the fan assembly 4 is started, and outside air is blown onto the surface of the second heat exchanger 5 through the air inlet, and then discharged through the exhaust port of the fan assembly 4, thereby cooling the hot water in the second heat exchanger 5. After cooling, the hot water becomes cold water and then flows back to the first heat exchanger 2 through the second outlet 52 and the first inlet 21. Inside the cabinet 1, the cold water entering the first heat exchanger 2 through the first inlet 21 absorbs heat from external high-frequency power supplies and other devices, and then becomes hot water, flowing out from the first outlet 22, thus completing the circulation.

[0040] According to an exemplary embodiment of the present invention, the heat dissipation box 8 can be located on the upper part of the cabinet 1. When the heat dissipation box 8 is located on the upper part of the cabinet 1, the lower support frame 7 is fixed on the upper part of the cabinet 1, thereby forming a space between the top of the heat dissipation box 8 and the top of the cabinet 1, thereby providing sufficient air intake space for the fan assembly 4, and at the same time, effectively preventing the entry of dust and other impurities.

[0041] According to an exemplary embodiment of the present invention, the heat dissipation box 8 may also be located on one side of the cabinet 1.

[0042] According to an exemplary embodiment of the present invention, the heat sink frame is made of stainless steel. The cooling fan blades are made of plastic, with a power of 500W, a voltage of 400V, and a speed of 1510r / min.

[0043] According to an exemplary embodiment of the present invention, both the first radiator and the second radiator are made of stainless steel heat sinks, and their fins are made of pure copper.

[0044] According to an exemplary embodiment of this utility model, the entire circuit of the heat sink fin of the first radiator from the water inlet to the water outlet is a single piece of pure metal, with no joints or sealing points in between. Operating pressure: 2-4 Bar, withstand pressure: 10 Bar. Exemplarily, the water inlet and outlet holes of the heat sink fin of this utility model are made of stainless steel, have an external threaded interface, and have an outer diameter of 32 mm.

[0045] According to an exemplary embodiment of the present invention, an L-shaped slide rail is provided on the outer periphery of the air inlet below the heat sink 8, and an air intake grille 6 is installed in the L-shaped slide rail. The air intake grille 6 can also be called a filter screen. The size of the filter screen is the same as the size of the slide rail. For example, the filter screen braid is made of metal wire, and the finished filter screen has no burrs or metal objects falling off.

[0046] According to an exemplary embodiment of this utility model, the support frame 7 below the heat sink 8 can withstand a weight of 150 kg. The interface connection between the second heat sink and the first heat sink still uses a black rubber tube. Exemplarily, the black rubber tube is made of EPDM, with an inner diameter of 25.4 mm, an outer diameter of 34.8 mm, a working pressure of 4 Bar, and a pressure resistance of 10 Bar. The EPDM black rubber tube is crimped with an internal thread connector on one side and connected to the outlet.

[0047] This utility model's electrostatic precipitator high-frequency power supply heat sink is an integrated heat sink, with fewer connection points between the second and first heat sinks. The number of potential leakage points has been reduced from 24 to 2. For all 60 power supplies with external heat sinks, the number of potential leakage points has been reduced from 1440 to 120, significantly lowering the risk of leakage.

[0048] The heat sink coil of this utility model can be made of pure copper. The entire circuit of the heat sink from the water inlet to the water outlet is a single piece of pure metal, so that the heat sink can be used for a long time without the risk of aging and cracking.

[0049] This utility model's filter effectively intercepts willow catkins and dust, and is extremely easy to clean. It maximizes the heat dissipation effect of the radiator, effectively coping with the willow catkin season in northern regions.

[0050] This invention employs an external integrated heat sink, using coolant to transfer heat generated inside the high-frequency power supply to the outside. An external fan then conducts the heat to the air. This cooling method combines the advantages of liquid cooling and air cooling, preventing the intake of dust-laden air into the power supply and avoiding any impact on the internal electronic circuits requiring cooling. It can operate effectively even in dirty industrial environments or during the polluted willow catkin season in northern regions.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that variations and combinations of elements may be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated heat sink for high-frequency power supply in an electrostatic precipitator, characterized in that: Including the cabinet and the heat sink; The cabinet is equipped with a high-frequency power supply for an electrostatic precipitator and a first heat exchanger; the first heat exchanger has a first inlet and a first outlet; The heat exchanger is located inside the heat exchange box. The second heat exchanger has a second inlet and a second outlet. The first inlet is connected to the second outlet, and the first outlet is connected to the second inlet. The heat exchanger fins of the second heat exchanger are an integral structure from the second inlet to the second outlet; The heat exchanger has a bottom support frame at the bottom, an air inlet at the bottom, and a fan assembly at the top, which is located above the second heat exchanger. The cabinet is also equipped with a pump, which circulates the coolant between the first heat exchanger and the second heat exchanger.

2. The radiator according to claim 1, characterized in that: The heat exchanger fins of the first heat exchanger are an integral structure from the first inlet to the first outlet.

3. The radiator according to claim 2, characterized in that: The connection between the first heat exchanger and the second heat exchanger is made using a black rubber tube.

4. The radiator according to claim 1, characterized in that: The bottom of the radiator is also equipped with an air intake grille that matches the air intake.

5. The radiator according to claim 4, characterized in that: The air intake grille can slide relative to the opening.

6. The radiator according to claim 1, characterized in that: There are two fan assemblies, both located above the second heat exchanger.

7. The radiator according to claim 1, characterized in that: The fan assembly includes a fan and a casing covering the outside of the fan.

8. The radiator according to claim 1, characterized in that: Only one secondary heat exchanger is installed inside the heat sink.

9. The radiator according to claim 1, characterized in that: The heat dissipation box is located at the top of the cabinet, and the support frame below is fixed to the top of the cabinet.

10. The radiator according to claim 1, characterized in that: The heat sink is located on one side of the cabinet.

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