Flue gas conveying pipeline capable of cooling

By introducing a jacket, a circulating water tank and cooling equipment into the flue gas conveying pipeline, combined with thermal conductive silica gel and flow guide plates, the problem of pipeline overheating caused by high-temperature flue gas is solved, efficient heat exchange and wear resistance are achieved, and the service life is extended.

CN223331747UActive Publication Date: 2025-09-12MAANSHAN YUANQUAN METAL MATERIALS TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422627929.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-30
Publication Date
2025-09-12
Estimated Expiration
2034-10-30

AI Technical Summary

Technical Problem

Existing flue gas delivery pipelines are prone to overheating under high temperature conditions, which increases the load on the delivery pipelines and reduces the flue gas treatment efficiency and service life.

Method used

The design adopts a jacket, circulating water tank, cooling equipment and heat dissipation components. The cooling water is transported to the jacket by a circulating pump and thermal conductive silica gel. The heat is dissipated through the heat dissipation fins. The flue gas flow rate is adjusted in combination with the flow guide plate to achieve efficient heat exchange.

Benefits of technology

Effectively reduce flue gas temperature, reduce pipeline load, improve flue gas treatment efficiency and pipeline service life, and enhance wear resistance and corrosion resistance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a flue gas conveying pipeline capable of cooling. The flue gas conveying pipeline comprises a conveying inner pipe and a circulating water tank, through the arrangement of the jacket, the circulating assembly, the circulating water tank, the cooling equipment and the heat dissipation assembly, during use, the circulating pump conveys water cooled by the cooling equipment into the jacket through the conveying pipe A, the cooling water absorbs heat in the flue gas conveying pipeline, heat conduction silica gel is added outside the jacket, and the heat conduction silica gel has good heat conductivity, so that the heat dissipation efficiency of the flue gas is improved. Heat is transmitted to the heat dissipation fins, the heat dissipation fins increase the surface area, dissipate the heat and reduce the working load of the cooling equipment, water with heat is conveyed into the cooling equipment through the circulating pipe, and the water is conveyed again after being cooled, so that the effect of rapidly cooling the flue gas conveying pipeline is achieved, the situation that the conveying pipeline is overheated due to high-temperature flue gas is avoided, and the service life of the flue gas conveying pipeline is prolonged. The load of the flue gas conveying pipeline is increased, the subsequent flue gas treatment efficiency is improved, and the service life of the flue gas conveying pipeline is prolonged.
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Description

Technical Field

[0001] The utility model relates to the technical field of smoke conveying pipes, in particular to a smoke conveying pipe capable of reducing temperature. Background Art

[0002] A conveying pipeline refers to a pipeline specifically used to transport liquid and gaseous materials. The method of transporting materials through pipelines is called pipeline transportation. The flue gas conveying pipeline is a pipeline used to transport the flue gas generated by combustion from a boiler or other combustion equipment to a chimney or treatment system.

[0003] The existing flue gas conveying pipeline has a relatively simple structure when in use. The high-temperature flue gas flowing in the pipeline will cause the conveying pipeline to overheat, increase the load of the flue gas conveying pipeline, and is not convenient for improving the efficiency of subsequent flue gas treatment and increasing the service life of the flue gas conveying pipeline. Utility Model Content

[0004] The main purpose of the utility model is to provide a flue gas conveying pipeline with a cooling function, which can effectively solve the problem in the background technology that it is difficult to improve the efficiency of subsequent flue gas treatment and to increase the service life of the flue gas conveying pipeline.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a flue gas conveying pipeline capable of cooling down comprises an inner conveying pipe and a circulating water tank, the outer portion of the inner conveying pipe is provided with a jacket, the inner wall of the inner conveying pipe is fixedly connected with a wear-resistant component, flow guide plates are staggeredly distributed on both sides of the inner wall of the wear-resistant component, the top surface of the circulating water tank is fixedly connected with a circulating component, one side of the circulating water tank is connected to a cooling device via a connecting pipe, and the surface of the jacket is provided with a heat dissipation component.

[0006] The circulation assembly includes a circulation pump fixedly connected to the surface of the circulation water tank, the output end of the circulation pump is connected to the delivery pipe A, the input end of the circulation pump is connected to the delivery pipe B, and one end of the delivery pipe B is connected to the interior of the circulation water tank;

[0007] The heat dissipation component includes a heat-conducting silica gel provided on the surface of the jacket, and the surface of the heat-conducting silica gel is fixedly connected with a heat dissipation fin;

[0008] Preferably, the output end of the cooling device is connected to a circulation pipe, one end of the circulation pipe is connected to a discharge pipe, one end of the discharge pipe is fixedly connected to one side of the jacket surface, so that the jacket can circulate cooling water inside;

[0009] Preferably, a mounting bracket is fixedly connected to one side of the cooling device, and a heat dissipation fan is provided inside the mounting bracket, so as to increase the heat dissipation efficiency of the cooling device;

[0010] Preferably, a water inlet is fixedly connected to the other side of the jacket surface, one end of which is fixedly connected to one end of the delivery pipe A, so that the water inlet facilitates the delivery of the cooled water to the interior of the jacket;

[0011] Preferably, the wear-resistant component includes a carbon fiber reinforced material layer fixedly connected to the inner wall of the conveying inner pipe, and the inner wall of the carbon fiber reinforced material layer is fixedly connected to a ceramic tube, and the ceramic tube has corrosion resistance;

[0012] Preferably, the flow guide plate is made of corrosion-resistant steel, and the flow guide plate is convenient for changing the speed of the flue gas flow;

[0013] Preferably, both ends of the jacket are fixedly connected with flanges, and mounting holes are provided on the surface of the flanges, so that the flanges are convenient for connecting to equipment that generates smoke and equipment for subsequent treatment;

[0014] Preferably, the material of the inner conveying tube is 304 stainless steel, which has high wear resistance.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The utility model is provided with a jacket, a circulation component, a circulation water tank, a cooling device and a heat dissipation component. When in use, the circulation pump transports the water cooled by the cooling device to the inside of the jacket through the delivery pipe A. The cooling water absorbs the heat in the flue gas delivery pipe. Since the outside of the jacket is added with thermal conductive silica gel, the thermal conductive silica gel has good thermal conductivity and transfers the heat to the heat dissipation fins. The heat dissipation fins increase the surface area and dissipate the heat, thereby reducing the workload of the cooling device. The circulation pipe transports the water with heat to the cooling device, cools it, and then transports it again, thereby achieving the effect of rapid cooling of the flue gas delivery pipe, avoiding overheating of the delivery pipe caused by high-temperature flue gas and increasing the load on the flue gas delivery pipe, and improving the efficiency of subsequent flue gas treatment and the service life of the flue gas delivery pipe.

[0017] 2. The utility model is provided with a flow guide plate. When in use, the flue gas flows in the conveying pipe and passes through the flow guide plate, which can slow down the flow speed of the flue gas, thereby increasing the residence time of the flue gas inside the conveying pipe and allowing the heat in the flue gas to be absorbed by the cooling water more quickly, thereby achieving high efficiency of heat exchange, avoiding the fast flow speed of the flue gas inside the conveying pipe, causing uneven heat absorption, and improving the efficiency of heat exchange. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the heat dissipation component structure of the present utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the circulation component of the present utility model;

[0021] Figure 4 This is a schematic structural diagram of the wear-resistant component of the utility model;

[0022] Figure 5 This is a schematic structural diagram of the flow guide plate of the present utility model.

[0023] In the figure: 1. Inner conveying pipe; 2. Circulating water tank; 3. Jacket; 4. Wear-resistant component; 401. Carbon fiber reinforced material layer; 402. Ceramic tube; 5. Flow guide plate; 6. Circulation component; 601. Circulation pump; 602. Conveying pipe A; 603. Conveying pipe B; 7. Connecting pipe; 8. Cooling equipment; 9. Heat dissipation component; 901. Thermal conductive silicone; 902. Heat dissipation fins; 10. Circulation pipe; 11. Discharge pipe; 12. Cooling fan; 13. Water inlet; 14. Flange. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-Figure 5 The utility model provides a technical solution: a flue gas conveying pipeline with cooling function, comprising an inner conveying pipe 1 and a circulating water tank 2, a jacket 3 is provided on the outside of the inner conveying pipe 1, a wear-resistant component 4 is fixedly connected to the inner wall of the inner conveying pipe 1, and flow guide plates 5 are staggeredly distributed on both sides of the inner wall of the wear-resistant component 4, a circulation component 6 is fixedly connected to the top surface of the circulating water tank 2, and a cooling device 8 is connected to one side of the circulating water tank 2 through a connecting pipe 7, and a heat dissipation component 9 is provided on the surface of the jacket 3. Through the arrangement of the flow guide plate 5, when the flue gas flows in the conveying pipe, it can slow down the flow speed of the flue gas by passing through the flow guide plate 5, so that the residence time of the flue gas inside the conveying pipe is increased, so that the heat in the flue gas can be absorbed by the cooling water faster, thereby achieving high efficiency of heat exchange, avoiding the fast flow speed of the flue gas inside the conveying pipe, causing uneven heat absorption, and improving the efficiency of heat exchange;

[0026] The circulation component 6 includes a circulation pump 601 fixedly connected to the surface of the circulation water tank 2, the output end of the circulation pump 601 is connected to the delivery pipe A602, the input end of the circulation pump 601 is connected to the delivery pipe B603, one end of the delivery pipe B603 is connected to the inside of the circulation water tank 2, the heat dissipation component 9 includes a thermal conductive silicone 901 arranged on the surface of the jacket 3, the surface of the thermal conductive silicone 901 is fixedly connected to the heat dissipation fin 902, the circulation pump 601 delivers the water cooled by the cooling device 8 to the water inlet 13 through the delivery pipe A602, and then delivers the cooling water to the inside of the jacket 3, and the cooling water absorbs the smoke The heat in the flue gas conveying pipeline is transferred to the heat dissipation fins 902 because the heat conductive silicone 901 is added to the outside of the jacket 3. The heat conductive silicone 901 has good thermal conductivity and transfers the heat to the heat dissipation fins 902. The heat dissipation fins 902 increase the surface area and dissipate the heat, reducing the workload of the cooling device 8. The circulation pipe 10 transports the hot water into the cooling device 8, cools it, and then transports it again, thereby achieving the effect of rapid cooling of the flue gas conveying pipeline, avoiding overheating of the conveying pipeline caused by high-temperature flue gas, increasing the load of the flue gas conveying pipeline, and improving the efficiency of subsequent flue gas treatment and the service life of the flue gas conveying pipeline.

[0027] See also Figure 2 、 Figure 3 、 Figure 5 In order to circulate the cooling water and improve the cooling efficiency, the output end of the cooling device 8 is connected with a circulation pipe 10, one end of the circulation pipe 10 is connected with a discharge pipe 11, one end of the discharge pipe 11 is fixedly connected to one side of the surface of the jacket 3, one side of the cooling device 8 is fixedly connected with a mounting bracket, a heat dissipation fan 12 is provided inside the mounting bracket, the other side of the surface of the jacket 3 is fixedly connected with a water inlet 13, one end of the water inlet 13 is fixedly connected to one end of the delivery pipe A602;

[0028] The circulation pipe 10 is connected to the discharge pipe 11, and the water containing heat is transported to the cooling device 8 for cooling. A heat dissipation fan 12 is provided on one side of the cooling device 8 to increase the heat dissipation speed of the cooling device 8. The cooled water is then transported to the inside of the circulating water tank 2 through the connecting pipe 7. The circulating pump 601 then transports the cooling water to the water inlet 13 through the delivery pipe A602, so that the cooling water can circulate inside the jacket 3, which is convenient for cooling the flue gas delivery pipeline.

[0029] See also Figure 4 In order to increase the wear resistance of the flue gas conveying pipe and extend its service life, a wear-resistant component 4 is set inside the conveying inner pipe 1. The wear-resistant component 4 includes a carbon fiber reinforced material layer 401 fixedly connected to the inner wall of the conveying inner pipe 1. The inner wall of the carbon fiber reinforced material layer 401 is fixedly connected to a ceramic tube 402. The material of the conveying inner pipe 1 is 304 stainless steel.

[0030] During the process of conveying flue gas, the flue gas contains corrosive gases. The carbon fiber reinforced material layer 401 is composed of carbon fiber composite materials and has excellent corrosion resistance. At the same time, the ceramic tube 402 has the advantages of acid and alkali resistance, high mechanical strength, wear resistance, and impact resistance. It can reduce the corrosion of the conveying pipeline by corrosive gases and extend the service life of the flue gas conveying pipeline.

[0031] See also Figure 5 , both ends of the jacket 3 are fixedly connected with flanges 14, and the surface of the flange 14 is provided with mounting holes;

[0032] When in use, one end of the flue gas conveying pipe is connected to the equipment of the flue gas generating equipment with a flange 14, and the other end of the flue gas conveying pipe is connected to the next flue gas treatment process with a flange 14. The connection with the flange 14 helps to improve the convenience of installation and disassembly.

[0033] Working principle: When in use, connect one end of the flue gas delivery pipe to the equipment of the flue gas generating device with a flange 14, and connect the other end of the flue gas delivery pipe to the next flue gas treatment process with a flange 14. Connect the circulating pipe 10 with the exhaust pipe 11, and deliver the water containing heat to the cooling device 8. The cooling device 8 is cooled. A heat dissipation fan 12 is provided on one side of the cooling device 8 to increase the heat dissipation speed of the cooling device 8. Then, the cooled water is delivered to the inside of the circulating water tank 2 through the connecting pipe 7. The circulating pump 601 then delivers the cooling water to the water inlet 13 through the delivery pipe A602, and then delivers the cooling water to the cooling device 8. The cooling water is sent to the inside of the jacket 3, where it absorbs the heat in the flue gas conveying pipe. Since the thermal conductive silica gel 901 is added to the outside of the jacket 3, the thermal conductive silica gel 901 has good thermal conductivity and transfers the heat to the heat dissipating fins 902. The heat dissipating fins 902 increase the surface area and dissipate the heat, thereby reducing the workload of the cooling device 8. The circulation pipe 10 transports the heated water to the cooling device 8, where it is cooled and then transported again, thereby achieving the effect of rapid cooling of the flue gas conveying pipe, avoiding overheating of the conveying pipe caused by high-temperature flue gas and increasing the load on the flue gas conveying pipe, thereby improving the efficiency of subsequent flue gas treatment and the service life of the flue gas conveying pipe.

[0034] During the process of conveying flue gas, the flue gas contains corrosive gases. The carbon fiber reinforced material layer 401 is composed of carbon fiber composite materials and has excellent corrosion resistance. At the same time, the ceramic tube 402 has the advantages of acid and alkali resistance, high mechanical strength, wear resistance, impact resistance, etc., which can reduce the corrosion of the conveying pipeline by corrosive gases. When the flue gas flows in the conveying pipeline, it passes through the flow guide plate 5, which can slow down the flow speed of the flue gas, increase the residence time of the flue gas inside the conveying pipeline, and allow the heat in the flue gas to be absorbed by the cooling water faster, thereby achieving high efficiency of heat exchange, avoiding the fast flow speed of the flue gas inside the conveying pipeline, causing uneven heat absorption, and improving the efficiency of heat exchange. The above is the working process of the entire device, and the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flue gas conveying pipeline capable of cooling, comprising a conveying inner pipe (1) and a circulating water tank (2), characterized in that: The outer portion of the inner delivery tube (1) is provided with a jacket (3), the inner wall of the inner delivery tube (1) is fixedly connected to a wear-resistant component (4), both sides of the inner wall of the wear-resistant component (4) are staggeredly provided with flow guide plates (5), the top surface of the circulating water tank (2) is fixedly connected to a circulating component (6), one side of the circulating water tank (2) is connected to a cooling device (8) through a connecting pipe (7), and the surface of the jacket (3) is provided with a heat dissipation component (9). The circulation assembly (6) comprises a circulation pump (601) fixedly connected to the surface of the circulation water tank (2); the output end of the circulation pump (601) is connected to a delivery pipe A (602); the input end of the circulation pump (601) is connected to a delivery pipe B (603); one end of the delivery pipe B (603) is connected to the interior of the circulation water tank (2); The heat dissipation component (9) comprises a heat-conducting silica gel (901) arranged on the surface of the jacket (3), and a heat dissipation fin (902) is fixedly connected to the surface of the heat-conducting silica gel (901).

2. The flue gas conveying duct capable of being cooled according to claim 1, characterized in that: The output end of the cooling device (8) is connected to a circulation pipe (10), one end of the circulation pipe (10) is connected to a discharge pipe (11), and one end of the discharge pipe (11) is fixedly connected to one side of the surface of the jacket (3).

3. The flue gas conveying duct capable of being cooled according to claim 1, characterized in that: A mounting frame is fixedly connected to one side of the cooling device (8), and a heat dissipation fan (12) is provided inside the mounting frame.

4. The flue gas conveying duct capable of being cooled according to claim 1, characterized in that: A water inlet (13) is fixedly connected to the other side of the surface of the jacket (3), and one end of the water inlet (13) is fixedly connected to one end of the delivery pipe A (602).

5. The flue gas conveying duct capable of being cooled according to claim 1, characterized in that: The wear-resistant component (4) comprises a carbon fiber reinforced material layer (401) fixedly connected to the inner wall of the conveying inner pipe (1), and the inner wall of the carbon fiber reinforced material layer (401) is fixedly connected to a ceramic tube (402).

6. The flue gas conveying duct capable of being cooled according to claim 1, characterized in that: The flow guide plate (5) is made of corrosion-resistant steel.

7. The flue gas conveying duct capable of being cooled according to claim 1, characterized in that: Both ends of the jacket (3) are fixedly connected with flanges (14), and mounting holes are provided on the surface of the flanges (14).

8. The flue gas conveying duct capable of being cooled according to claim 1, characterized in that: The material of the conveying inner tube (1) is 304 stainless steel.