Cooling device for heating surface of boiler

Abstract

The utility model discloses a boiler heating surface cooling device, and belongs to the field of boiler cooling. According to the technical scheme, the heat dissipation device comprises a heat absorption bottom plate and an assembly body, the heat absorption bottom plate is arranged at the bottom of the assembly body, furnace arm fixing parts are arranged on the two sides of the heat absorption bottom plate in a matched mode, a heat dissipation bin is arranged in the assembly body, and a heat dissipation fan is arranged on the outer wall of the heat dissipation bin. And the cooling circulating pipeline is arranged in the heat dissipation bin. The device is internally provided with the cooling circulating pipeline and the heat dissipation fan to perform double cooling on the heating surface of the boiler, so that the heat transfer efficiency and the cooling effect of the heating surface of the boiler are effectively improved, and the situation of high-temperature corrosion of the heating surface of the boiler in the normal operation process of the boiler is avoided.

Description

Technical Field

[0001] This utility model relates to the field of boiler cooling, and in particular to a boiler heating surface cooling device. Background Technology

[0002] Thermal power units, primarily fueled by coal, are severely affected by ash pollution during operation. Ash accumulation on boiler heating surfaces reduces their heat absorption capacity, leading to decreased heat transfer efficiency. This reduced heat transfer efficiency in the furnace and subsequent heating surfaces also causes an increase in furnace outlet and final boiler flue gas temperature, resulting in an overall decrease in boiler efficiency. Typically, compared to clean conditions, ash pollution reduces boiler efficiency by 1% to 2.5% and increases flue gas temperature by more than ten degrees Celsius. Ash and slag buildup not only reduce the heat absorption capacity of heating surfaces but also cause excessively high surface temperatures, leading to overheating, high-temperature corrosion, and even tube bursts. Therefore, it is necessary to add appropriate cooling devices to the boiler heating surfaces to ensure continuous cooling during normal boiler operation, thereby preventing tube bursts and reducing the overall cost of subsequent maintenance. Utility Model Content

[0003] This utility model addresses the problems existing in the prior art by providing a boiler heating surface cooling device that provides cooling for the boiler heating surface, thereby improving boiler operating efficiency and reducing maintenance costs.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A boiler heating surface cooling device includes a heat-absorbing base plate and an assembly body. The heat-absorbing base plate is located at the bottom of the assembly body. Telescopic rods are installed on both sides of the heat-absorbing base plate. A furnace arm fixing component is installed on the outer side of the telescopic rod and is fixedly connected to the outer side of the furnace arm. Liquid inlet and liquid outlet components are installed on both sides of the assembly body. A heat dissipation chamber is installed inside the assembly body. A heat dissipation fan is installed on the outer wall of the heat dissipation chamber. Cooling circulation pipes are installed inside the heat dissipation chamber and are connected to the liquid inlet and liquid outlet components. Two small cooling pumps are installed below the assembly body and are connected to the cooling circulation pipes.

[0006] Preferably, the miniature cooling pump includes a coolant inlet pipe, a coolant outlet pipe, a bundled tube sleeve, a controller, a radiator, a main cooling chamber, and a mating connection slot. The mating connection slot is mated to the assembly body. The main cooling chamber is located below the mating connection slot. The radiator is located below the main cooling chamber, and the controller is located on the outside of the radiator. The bundled tube sleeve is located below the radiator. The coolant inlet pipe and coolant outlet pipe are mated inside the bundled tube sleeve. Both the coolant inlet pipe and coolant outlet pipe are mated to the main cooling chamber, and their other sides are mated to the cooling circulation pipe.

[0007] Preferably, the main cooling chamber has a cold plate installed on its outer wall.

[0008] Preferably, the cooling circulation pipeline includes an inlet connecting pipe, a main inlet pipe, a diverter valve, a circulation pipeline, a coolant branch pipeline, a main outlet pipe, and an outlet connecting pipe. The inlet connecting pipe is connected to an inlet fitting component. A main inlet pipe is fitted to the right side of the inlet connecting pipe. The right side of the main inlet pipe is fitted to the diverter valve. A circulation pipeline is located above the diverter valve and circulates within the assembly body. A coolant branch pipeline is located below the diverter valve and is fitted to a small cooling pump. A main outlet pipe is fitted to the right side of the diverter valve. An outlet connecting pipe is fitted to the right side of the main outlet pipe and is fitted to the outlet fitting component.

[0009] Preferably, the furnace arm fixing component includes a detachable connecting rod, a cooperating support shaft, and a fixing bracket. The detachable connecting rod is connected to the telescopic rod. A cooperating support shaft is vertically arranged below the detachable connecting rod, and a fixing bracket is cooperatingly arranged below the cooperating support shaft.

[0010] Preferably, the fixing bracket is made of heat-resistant cast steel.

[0011] Preferably, a drive compartment is provided at the upper part of the assembly body.

[0012] Preferably, the liquid inlet fitting component 6 and the liquid outlet fitting component 9 are fitted and connected to an external pipeline, and a sealing ring is provided at the connection position.

[0013] Preferably, the main cooling chamber 106 is provided with a return water cover, and the two sides of the return water cover are respectively connected to the coolant inlet pipe 101 and the coolant outlet pipe 102.

[0014] Preferably, a heat-resistant film is provided at the contact position between the fixed bracket 303 and the boiler.

[0015] Compared with the prior art, the present invention provides a boiler heating surface cooling device, which has the following beneficial effects:

[0016] 1. This device uses internal cooling circulation pipes and heat dissipation fans to provide dual cooling for the boiler's heating surface, effectively improving the heat transfer efficiency and cooling effect of the boiler's heating surface, and ensuring that the boiler's heating surface will not experience high-temperature corrosion during normal operation.

[0017] 2. The components of the cooling device that mate with the boiler heating surface are made of high-temperature resistant materials, which ensures that the cooling device will not be affected by the high temperature of the boiler heating surface during normal use, effectively improving the service life of the device and reducing subsequent maintenance costs. Attached Figure Description

[0018] Figure 1 This is the main view of the present invention.

[0019] Figure 2 This is a structural diagram of the small cooling pump component of this utility model;

[0020] Figure 3 This is a structural diagram of the cooling circulation pipe component of this utility model;

[0021] Figure 4 This is a structural diagram of the furnace arm fixing component of this utility model;

[0022] Figure 5 This is a schematic diagram of the installation of this utility model.

[0023] In the diagram: 1. Heat-absorbing base plate; 2. Telescopic rod; 3. Furnace arm fixing component; 4. Assembly body; 5. Small cooling pump; 6. Liquid inlet fitting component; 7. Heat dissipation chamber; 8. Heat dissipation fan; 9. Liquid outlet fitting component; 10. Drive chamber; 101. Coolant inlet pipe; 102. Coolant outlet pipe; 103. Bundle tube sleeve; 104. Controller; 105. Radiator; 106. Main cooling chamber; 107. Fitting connection slot; 201. Liquid inlet connection pipe; 202. Main liquid inlet pipe; 203. Diverter valve; 204. Circulation pipe; 205. Coolant branch pipe; 206. Main liquid outlet pipe; 207. Liquid outlet connection pipe; 301. Detachable connecting rod; 302. Fitting support shaft; 303. Fixed bracket. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Example 1:

[0027] Reference Figure 1-5 A boiler heating surface cooling device includes a heat-absorbing base plate 1 and an assembly body 4. The heat-absorbing base plate 1 is located at the bottom of the assembly body 4. Telescopic rods 2 are provided on both sides of the heat-absorbing base plate 1. A furnace arm fixing component 3 is provided on the outer side of the telescopic rod 2 and is fixedly connected to the outer side of the furnace arm. Liquid inlet fitting component 6 and liquid outlet fitting component 9 are provided on both sides of the assembly body 4. A heat dissipation chamber 7 is provided inside the assembly body 4. A heat dissipation fan 8 is provided on the outer wall of the heat dissipation chamber 7. Cooling circulation pipes are located inside the heat dissipation chamber 7 and are connected to the liquid inlet fitting component 6 and the liquid outlet fitting component 9. Two small cooling pumps 5 are provided at the bottom of the assembly body 4 and are connected to the cooling circulation pipes. The heat-absorbing base plate 1 contacts the outer wall of the boiler heating surface and conducts heat through heat transfer. Then, the cooling circulation pipes inside the assembly body 4 carry away the heat at the heat-absorbing base plate 1 through the flow of coolant. At the same time, the heat dissipation fan 8 on the assembly body 4 can physically dissipate internal heat and provide auxiliary cooling for the overall device.

[0028] Furthermore, the small cooling pump 5 includes a coolant inlet pipe 101, a coolant outlet pipe 102, a tube clamp 103, a controller 104, a radiator 105, a main cooling chamber 106, and a mating connection slot 107. The mating connection slot 107 is mated and connected to the assembly body 4. The main cooling chamber 106 is located below the mating connection slot 107. The radiator 105 is mated and located below the main cooling chamber 106. The controller 104 is mated and located outside the radiator 105. The tube clamp 103 is mated and located below the radiator 105. The coolant inlet pipe 101 and the coolant outlet pipe 102 are mated and located inside the tube clamp 103. Both the coolant inlet pipe 101 and the coolant outlet pipe 102 are mated and located to the main cooling chamber 106, and their other sides are mated and connected to the cooling circulation pipe. The small cooling pump 5 can provide auxiliary cooling for the coolant in the cooling circulation pipe. Through the double-pass flow of the coolant inlet pipe 101 and the coolant outlet pipe 102, the coolant circulation speed is effectively increased, thus improving the cooling effect.

[0029] Furthermore, a drive chamber 10 is provided at the upper part of the assembly body 4. The drive chamber 10 can drive the internal components of the assembly body 4, thereby changing the working parameters of the relevant components during operation.

[0030] Furthermore, the liquid inlet fitting component 6 and the liquid outlet fitting component 9 are connected to the external pipeline, and a sealing ring is provided at the connection position.

[0031] Furthermore, the main cooling chamber 106 is equipped with a return water cover, and the two sides of the return water cover are respectively connected to the coolant inlet pipe 101 and the coolant outlet pipe 102.

[0032] Example 2:

[0033] Reference Figure 1-5 A cold plate is provided on the outer wall of the main cooling chamber 106. The cold plate is a metal block with grooves inside the main cooling chamber 106. During the cooling process of the internal coolant, the cold plate transfers heat to the outer wall of the main cooling chamber. At the same time, the heat dissipation is carried out by the heat dissipation fan 8 above, which can quickly absorb and remove heat.

[0034] Furthermore, the cooling circulation pipeline includes an inlet connection pipe 201, a main inlet pipe 202, a diversion valve 203, a circulation pipeline 204, a coolant branch pipeline 205, a main outlet pipe 206, and an outlet connection pipe 207. The inlet connection pipe 201 is connected to the inlet fitting component 6. The main inlet pipe 202 is located on the right side of the inlet connection pipe 201. The right side of the main inlet pipe 202 is connected to the diversion valve 203. The circulation pipeline 204 is located above the diversion valve 203 and circulates within the assembly body 4. The coolant branch pipeline 205 is located below the diversion valve 203 and is connected to the small cooling pump 5. The main outlet pipe 206 is located on the right side of the diversion valve 203. The outlet connection pipe 207 is located on the right side of the main outlet pipe 206 and is connected to the outlet fitting component 9. The diversion valve 203 controls the circulation of coolant. The pipes on both sides are connected to the inlet fitting component 6 and the outlet fitting component 9. The coolant is replaced through the fitting component on the outside, thereby improving the cooling effect of the boiler heating surface.

[0035] Example 3:

[0036] Reference Figure 4The furnace arm fixing component 3 includes a detachable connecting rod 301, a cooperating support shaft 302, and a fixing bracket 303. The detachable connecting rod 301 is connected to the telescopic rod 2. The cooperating support shaft 302 is vertically arranged below the detachable connecting rod 301, and the fixing bracket 303 is cooperatingly arranged below the cooperating support shaft 302.

[0037] Furthermore, a heat-resistant film is provided at the contact point between the fixed bracket 303 and the boiler. The heat-resistant film can improve the heat resistance at the contact point between the fixed bracket 303 and the boiler, thereby increasing the service life of the device.

[0038] Furthermore, the fixed bracket 303 is made of heat-resistant cast steel. Heat-resistant cast steel has excellent heat resistance and strength, making it suitable for long-term support in high-temperature environments.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A boiler heating surface cooling device, characterized in that, The assembly includes a heat-absorbing base plate (1) and an assembly body (4). The heat-absorbing base plate (1) is located at the bottom of the assembly body (4). Telescopic rods (2) are provided on both sides of the heat-absorbing base plate (1). A furnace arm fixing component (3) is provided on the outer side of the telescopic rod (2). The furnace arm fixing component (3) is fixedly connected to the outer side of the furnace arm. Liquid inlet component (6) and liquid outlet component (9) are provided on both sides of the assembly body (4). A heat dissipation chamber (7) is provided inside the assembly body (4). A heat dissipation fan (8) is provided on the outer wall of the heat dissipation chamber (7). A cooling circulation pipe is provided inside the heat dissipation chamber (7). The cooling circulation pipe is connected to the liquid inlet component (6) and the liquid outlet component (9). Two small cooling pumps (5) are provided at the bottom of the assembly body (4). The small cooling pumps (5) are connected to the cooling circulation pipe.

2. The boiler heating surface cooling device according to claim 1, characterized in that, The small cooling pump (5) includes a coolant inlet pipe (101), a coolant outlet pipe (102), a tube clamp (103), a controller (104), a radiator (105), a main cooling chamber (106), and a mating connection slot (107). The mating connection slot (107) is mated and connected to the assembly body (4). The main cooling chamber (106) is located below the mating connection slot (107), and a mating connection slot (107) is located below the main cooling chamber (106). There is a radiator (105), and a controller (104) is provided on the outside of the radiator (105). A tube sleeve (103) is provided below the radiator (105). A coolant inlet pipe (101) and a coolant outlet pipe (102) are provided inside the tube sleeve (103). The coolant inlet pipe (101) and the coolant outlet pipe (102) are both provided with the main cooling chamber (106), and the other side is connected to the cooling circulation pipe.

3. A boiler heating surface cooling device according to claim 2, characterized in that, A cold plate is provided on the outer wall of the main cooling chamber (106).

4. A boiler heating surface cooling device according to claim 1, characterized in that, The cooling circulation pipeline includes an inlet connection pipe (201), a main inlet pipe (202), a diverter valve (203), a circulation pipeline (204), a coolant branch pipeline (205), a main outlet pipe (206), and an outlet connection pipe (207). The inlet connection pipe (201) is connected to the inlet fitting component (6). The main inlet pipe (202) is fitted on the right side of the inlet connection pipe (201). The right side of the main inlet pipe (202) is fitted to the diverter valve (203). The diverter valve (203) is located above the diverter valve (203). A circulation pipe (204) is provided, and the circulation pipe (204) is arranged inside the assembly body (4). A coolant branch pipe (205) is provided below the diversion valve (203). The coolant branch pipe (205) is connected to a small cooling pump (5). A main outlet pipe (206) is provided on the right side of the diversion valve (203). An outlet connection pipe (207) is provided on the right side of the main outlet pipe (206). The outlet connection pipe (207) is connected to the outlet fitting component (9).

5. A boiler heating surface cooling device according to claim 1, characterized in that, The furnace arm fixing component (3) includes a detachable connecting rod (301), a cooperating support shaft (302), and a fixed bracket (303). The detachable connecting rod (301) is connected to the telescopic rod (2). The cooperating support shaft (302) is vertically arranged below the detachable connecting rod (301), and the fixed bracket (303) is arranged below the cooperating support shaft (302).

6. A boiler heating surface cooling device according to claim 5, characterized in that, The fixed bracket (303) is made of heat-resistant cast steel.

7. A boiler heating surface cooling device according to claim 1, characterized in that, The upper part of the assembly body (4) is equipped with a drive compartment (10).

8. A boiler heating surface cooling device according to claim 1, characterized in that, The liquid inlet fitting component (6) and the liquid outlet fitting component (9) are connected to the external pipeline, and a sealing ring is provided at the connection position.

9. A boiler heating surface cooling device according to claim 2, characterized in that, The main cooling chamber (106) is equipped with a return water cover, and the two sides of the return water cover are respectively connected to the coolant inlet pipe (101) and the coolant outlet pipe (102).

10. A boiler heating surface cooling device according to claim 5, characterized in that, A heat-resistant film is provided at the contact position between the fixed bracket (303) and the boiler.

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