Drainage groove type microporous heat pipe heating radiator

Abstract

The utility model provides a drainage groove type microporous heat pipe heating radiator, which relates to the technical field of heat pipe heating and heat dissipation and comprises a plurality of microporous heat pipes, a plurality of heat pipe fins and a plurality of groups of fin drainage notches. The plurality of microporous heat pipes are arranged in parallel and penetrate through the cold medium end and the hot medium end of the heat exchanger; the axial direction of the microporous heat pipe is consistent with the flowing direction of a medium; the heat pipe fins are fixedly arranged on the outer wall of the microporous heat pipe in an orthogonal crossing manner; the fin drainage notches are formed in the middles of the heat pipe fins in the height direction. According to the utility model, the heat pipe is provided with the aluminum alloy integrated structure with the fins, the integrality is strong, and the structural stability and safe reliability are improved; through reasonable design of the fin drainage notches, a flowing medium dead zone is reduced, ash deposition in a dead zone space is scoured, and the overall heat dissipation efficiency is improved; by reasonably designing the thickness of the fin structure, the forming and assembling process is simpler, more convenient and easier to implement, and the problem that welding fins of an existing heat pipe heat exchanger are unstable is effectively solved; the structure is simple, cost is low, and popularization and application are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pipe heating, heat exchange and heat dissipation, and in particular to a discharge trough type microporous heat pipe heating radiator. Background Art

[0002] Waste heat recovery and utilization in the steel, energy and chemical industries are key departments and equipment that determine the level of green development in the industry.

[0003] In the industrial production process, a large amount of heat energy is taken away due to the discharge of cooling water in the equipment insulation process, the cooling of high-temperature flue gas in the sintering process, and the discharge of various medium-temperature medium waste heat (waste energy). This heat energy can generally be used for air preheating in the combustion process, heating of boiler feed water, and waste heat power generation of high-temperature waste heat, and direct heat utilization of low-temperature waste heat energy, such as hot water heating, hot water process insulation, etc., which is of great significance to the industrial process. The largest amount of emissions in the industrial production process is low-temperature flue gas and low-temperature cooling water, especially flue gas cooled to about 100°C, and hot water around 6-70°C. Their recovery accounts for the main share of heat loss.

[0004] Shell and tube flue gas heat exchanger is currently the most commonly used flue gas heat exchanger, which can be used for flue gas-air (such as Figure 3 , 4 As shown), flue gas-steam, flue gas-circulating water (as shown Figure 1 , 2 The shell and tube flue gas heat exchanger has a certain pressure bearing capacity, a relatively simple structure, is overall sturdy and durable, and has a low equipment cost. It is suitable for flue gas treatment and waste heat recovery in the fields of chemical, petrochemical, metallurgy or steel.

[0005] Heat pipe heat exchangers are also used in the waste heat utilization of the industrial field to recover waste heat. In the early industrial applications, heat pipes generally used copper pipe walls or steel-copper composite pipes. However, due to the high cost of copper products, the widespread application of heat pipe technology in industry is limited. At present, heat exchangers are generally made of steel-welded finned tube heat pipes. This heat exchanger usually uses water as a phase change medium and is called a molten steel heat pipe. The molten steel heat pipe has been recognized by industrial waste heat recovery manufacturers for its low cost, high strength, simple manufacturing process and wide temperature range, and has been widely used in the industrial field.

[0006] However, heat pipe researchers also noticed the chemical compatibility problem between the shell material and the phase change medium. The service life of the molten steel heat pipe is less than 0.5 years, which cannot meet the requirements of industrial applications. Due to the chemical incompatibility between the pipe material and the phase change medium, corrosion occurs inside the molten steel heat pipe, producing non-condensable gas hydrogen. The more hydrogen there is, the worse the heat exchange effect will be. When hydrogen accumulates to a certain extent, the heat pipe will completely lose its heat transfer function.

[0007] In addition, dust accumulation on heat pipes is a common problem in heat pipe waste heat recovery equipment. Dust accumulation increases the thermal resistance of the heating surface, reduces the heat transfer capacity of the equipment, reduces the channel area of ​​the fluid, increases flow resistance, reduces the heat exchange surface temperature, and causes low-temperature dew point corrosion. Many waste heat recovery equipment cannot operate normally due to severe dust accumulation, and are even forced to stop use. Therefore, dust accumulation has become a major problem for the normal operation of energy-saving equipment.

[0008] In addition, the existing welded fins of heat pipe heat exchangers are mainly connected by bonding or welding, which easily produces gaps, reduces the heat dissipation effect, and has structural stability problems, affecting the efficiency of heat exchange applications.

[0009] Therefore, there is an urgent need to develop and design a heat pipe heating radiator structure with a more reasonable structure, more optimized process, and more efficient heat exchange to ensure the overall heat exchange effect of the heat pipe heating radiator, thereby solving the above-mentioned shortcomings and difficulties of the prior art. Utility Model Content

[0010] In view of this, the purpose of the utility model is to improve and optimize the structure of the traditional heat pipe heat exchanger, design a leakage groove type microporous heat pipe heating radiator, adopt aluminum alloy integral high-efficiency heat pipe heat exchange element, overcome the problem of easy corrosion inside the molten steel heat pipe and the generation of non-condensable gas hydrogen; through the reasonable heat pipe fin structure arrangement and layout design, enhance the structural integrity of the heat pipe fin structure arrangement and layout, improve the structural stability and safety reliability of the heat pipe heating radiator; through the reasonable fin leakage groove design, reduce the dead zone of the flow medium of the heat pipe fin, flush the ash deposition in the dead zone space, and improve the overall heat dissipation efficiency of the heat pipe heating radiator; through the reasonable fin structure thickness design, make the molding and assembly process more simple and easy, so as to solve the problem of unstable welding fins of existing heat pipe heat exchangers; and the structure is simple and the cost is low, which is conducive to popularization and application.

[0011] The utility model provides a drainage groove type microporous heat pipe heating radiator, comprising: a plurality of microporous heat pipes, a plurality of heat pipe fins, and a plurality of groups of fin drainage grooves; the plurality of microporous heat pipes are arranged in parallel, the microporous heat pipes penetrate the cold medium end and the hot medium end of the heat exchanger, and are vertically arranged between the cold medium and the hot medium, that is, a structural penetration type heat exchanger structure is adopted to realize the heat transfer from the hot medium to the cold medium, so as to achieve the heat exchange of the medium and the waste heat recovery and utilization effect of the medium; the axial direction of the microporous heat pipe is consistent with the flow direction of the medium; due to the fast flow rate of the circulating medium, in order to reduce the flow resistance of the fluid medium, a downstream arrangement is adopted, that is, the flow direction of the medium is the axial direction of the microporous heat pipe;

[0012] The heat pipe fins are orthogonally cross-fixed on the outer wall of the microporous heat pipe; in order to improve the metal heat exchange ratio, a structure of a microporous heat pipe with heat pipe fins (ribs) is adopted to enhance the heat transfer capacity, achieve low temperature difference heat transfer and high efficiency heat exchange, and maximize energy recovery; and the provision of heat pipe fins (fins) helps to improve the heat transfer coefficient and enhance the heat exchange effect.

[0013] Preferably, the heat pipe fins and the outer wall of the microporous heat pipe are formed by one-time extrusion without using bonding or welding processes. There is no gap between the heat pipe fins and the microporous heat pipe, which enhances the heat transfer capacity of the microporous heat pipe heating radiator and maximizes small temperature difference heat transfer and high-efficiency heat exchange.

[0014] The fin discharge notch is opened in the middle of the height direction of the heat pipe fin, and the fin discharge notch is a through hole. In order to reduce the local obstruction of the heat pipe fin (rib) to the air and the dust accumulation in the space caused by the local obstruction, the utility model sets the fin discharge notch (open slot) to reduce the resistance of the fluid medium. When the medium flows to the fin discharge notch, part of the energy-carrying fluid in the medium passes through the heat pipe fin through the discharge effect, reducing the dead zone of the flow medium of the heat pipe fin. Based on the discharge effect of the fin discharge notch, the ash deposits in the local dead zone space are flushed, so as to achieve the effect of cleaning the heat pipe fin, thereby further enhancing the heat dissipation effect.

[0015] The utility model adopts an isolated downstream structure, and the flow direction of the fluid medium (such as flue gas and water) is consistent with the axial direction of the microporous heat pipe, thereby achieving the maximum contact area between the energy-carrying fluid and the microporous heat pipe. Due to the isolation effect of the heat pipe fins (ribs), a turbulent structure is formed to enhance the heat transfer effect.

[0016] Furthermore, the fin drainage slots on each of the heat pipe fins are arranged at unequal intervals along the length direction of the heat pipe fins. The fin drainage slots are arranged at unequal intervals so that when the fluid medium flows through the multiple fin drainage slots on a heat pipe fin, a turbulent state is formed, thereby enhancing the heat exchange effect between the hot medium and the cold medium.

[0017] Furthermore, each heat pipe fin is provided with three fin discharge slots in the length direction, wherein the fin discharge slot farthest from the microporous heat pipe is the longest, and the two fin discharge slots close to the microporous heat pipe are short (i.e., one is long and two are short). The multiple fin discharge slots on a heat pipe fin are designed with unequal lengths, which helps the fluid medium to form a lateral turbulent state when flowing through multiple fin discharge slots of different lengths, thereby enhancing the heat exchange effect between the hot medium and the cold medium.

[0018] Furthermore, the length of the heat pipe fin extending from the outer wall of the microporous heat pipe is 10-20 times the width of the microporous heat pipe; the height of the heat pipe fin extending from the outer wall of the microporous heat pipe is 3-5 times the width of the microporous heat pipe; the thickness of the heat pipe fin is 1 / 8-1 / 5 of the outer width of the microporous heat pipe. The selection of the corresponding size multiple ratio of the heat pipe fin and the microporous heat pipe helps to enhance the stability of the heat pipe with fin structure combination and the process feasibility; wherein, the reasonable thickness design of the heat pipe fin is convenient for the extrusion or stretching processing of the integral molding to reduce the process cost.

[0019] Furthermore, the fin discharge slot is a rounded rectangular hole or an oblong hole, and the aspect ratio of the rounded rectangular hole or the oblong hole is 1:10-1:15. The hole design with this aspect ratio is helpful to form a strong fluid flow rate, better flush the ash deposits in the local dead space, and clean the heat pipe fins.

[0020] Furthermore, the width of the fin discharge slot is 1 / 5-1 / 3 of the width of the heat pipe fin. The design of the ratio of the fin discharge slot width to the heat pipe fin width helps to maintain the heat pipe fin with a high structural strength, and will not weaken the strength of the heat pipe fin due to an excessively large area of ​​the opening slot, nor will it weaken the flow of the fluid medium due to an excessively small area of ​​the opening slot.

[0021] Furthermore, the heat pipe fins are fixedly connected to the outer wall of the microporous heat pipe as a whole, and the heat pipe fins and the outer wall of the microporous heat pipe are both aluminum alloy profile structures. The aluminum alloy profiles well solve the problem of chemical incompatibility between copper and steel pipes and phase change working fluids, which leads to corrosion inside the microporous heat pipe and the generation of non-condensable gas hydrogen, ensuring that the microporous heat pipe maintains excellent heat transfer function.

[0022] Furthermore, the plurality of heat pipe fins are arranged in parallel at equal intervals. The evenly arranged heat pipe fins at equal intervals enable the heat of the hot medium to be evenly transferred to the cold medium, thereby avoiding uneven heat exchange and poor local heat exchange effects.

[0023] Furthermore, three heat pipe fins are arranged in the axial direction of each microporous heat pipe. Arranging three heat pipe fins on a microporous heat pipe can reasonably distribute the heat conducted by the microporous heat pipe to each heat pipe fin, and the combined molding process of the microporous heat pipe and the three heat pipe fins is easy to realize and convenient to process.

[0024] Furthermore, the two ends of the microporous heat pipe are sealed and welded. The microporous heat pipe in the utility model is a fully enclosed structure, and the liquid phase change medium in the inner cavity of the microporous heat pipe will not leak or volatilize, which effectively ensures the sealing and safety reliability of the heat pipe.

[0025] Compared with the prior art, the utility model has the following beneficial effects on the culvert structure for reinforcing the roadbed bottom:

[0026] The discharge trough type microporous heat pipe heating radiator provided by the utility model optimizes and improves the structure of the traditional heat pipe heat exchanger, adopts an integrated aluminum alloy structure of the heat pipe with fins, overcomes the problems of easy corrosion inside the molten steel heat pipe and generation of non-condensable gas hydrogen, and enhances the structural integrity of the arrangement layout of the heat pipe fin structure, thereby improving the structural stability and safety reliability of the heat pipe heating radiator; through the reasonable design of the fin discharge groove, the dead zone of the flow medium of the heat pipe fin is reduced, and the ash deposition in the dead zone space can be flushed, thereby improving the overall heat dissipation efficiency of the heat pipe heating radiator; through the reasonable design of the fin structure thickness, the molding and assembly process is made simpler and easier, and the instability problem of the welded fins of the existing heat pipe heat exchanger is effectively solved; and the discharge trough type microporous heat pipe heating radiator has a simple structure, low cost, and broad prospects for promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limiting of the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0028] Figure 1 , 2 A schematic diagram of the heat exchange structure for heat recovery and utilization of flue gas heating cold water in an existing shell and tube flue gas heat exchanger;

[0029] Figure 3 , 4 A schematic diagram of the heat exchange structure of an existing shell and tube flue gas heat exchanger for heat recovery of flue gas heating air;

[0030] Figure 5 It is a schematic diagram of the structural assembly of a discharge trough type microporous heat pipe heating radiator according to an embodiment of the utility model.

[0031] The symbols in the accompanying drawings are:

[0032] 1. Microporous heat pipe, 2. Heat pipe fin, 3. Fin discharge slot. DETAILED DESCRIPTION

[0033] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms without being limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0034] In the description of the present invention, it should be noted that the terms "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" is understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The following is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0037] The utility model provides a trough-type microporous heat pipe heating radiator, see Figure 5 As shown, it includes: a plurality of microporous heat pipes 1, a plurality of heat pipe fins 2, and a plurality of groups of fin discharge slots 3; a plurality of microporous heat pipes 1 are arranged in parallel, and the microporous heat pipes 1 penetrate the cold medium end and the hot medium end of the heat exchanger, and are arranged vertically between the cold medium and the hot medium, that is, a structural penetration heat exchanger structure is adopted to realize the heat transfer from the hot medium to the cold medium, so as to achieve the heat exchange of the medium and the waste heat recovery and utilization effect of the medium; the axial direction of the microporous heat pipe 1 is consistent with the flow direction of the medium; the flow rate of the circulating medium is fast and the flow resistance is large. In order to reduce the flow resistance of the fluid medium, this embodiment adopts a downstream arrangement, that is, the flow direction of the medium is the axial direction of the microporous heat pipe; the heat pipe fins 2 are orthogonally cross-fixed on the outer wall of the microporous heat pipe 1; the structure of the microporous heat pipe 1 with the heat pipe fins 2 is adopted to improve the metal heat exchange ratio, enhance the heat transfer capacity, realize low temperature difference heat transfer, high efficiency heat exchange, and maximize energy recovery; at the same time, the heat pipe fins 2 are provided to help improve the heat transfer coefficient and enhance the heat exchange effect.

[0038] The heat pipe fin 2 and the outer wall of the microporous heat pipe 1 are formed by one-time extrusion without using bonding or welding processes. There is no gap between the heat pipe fin 2 and the microporous heat pipe 1, which enhances the heat transfer capacity of the microporous heat pipe heating radiator and realizes small temperature difference heat transfer and high-efficiency heat exchange to the greatest extent. The through-hole type fin discharge slot 3 is opened in the middle of the height direction of the heat pipe fin 2, which reduces the local obstruction of the heat pipe fin 2 to the fluid medium (smoke or water) and the dust accumulation in the space caused by the local obstruction. When the medium flows to the fin discharge slot 3, part of the energy-carrying fluid in the medium passes through the heat pipe fin 2 through the discharge effect, reducing the dead zone of the flow medium of the heat pipe fin 2, and based on the discharge effect of the fin discharge slot 3, the ash deposits in the local dead zone space are flushed to achieve the effect of cleaning the heat pipe fin 2, thereby further enhancing the heat dissipation effect; this embodiment adopts an isolated downstream structure, and the flow direction of the fluid medium is consistent with the axial direction of the microporous heat pipe 1, so as to achieve the maximum contact area between the fluid and the microporous heat pipe 1, and due to the isolation effect of the heat pipe fin 2, a turbulent structure is formed to enhance the heat exchange effect.

[0039] The length of the heat pipe fin 2 extending from the outer wall of the microporous heat pipe 1 is 10 times the width of the microporous heat pipe 1; the height of the heat pipe fin 2 extending from the outer wall of the microporous heat pipe 1 is 5 times the width of the microporous heat pipe 1; the thickness of the heat pipe fin 2 is 1 / 5 of the outer width of the microporous heat pipe 1. The selection of the corresponding size multiple ratio of the heat pipe fin 2 and the microporous heat pipe 1 helps to enhance the stability of the heat pipe with fin structure combination and the process feasibility; among them, the reasonable thickness design of the heat pipe fin is convenient for the extrusion or stretching processing of the integral molding, which reduces the process cost.

[0040] In this embodiment, three fin discharge slots 3 are provided in the length direction of each heat pipe fin 2, among which the fin discharge slot 3 farthest from the microporous heat pipe has the longest length, and the two fin discharge slots 3 close to the microporous heat pipe have the shortest length (i.e., one is long and two are short). The multiple fin discharge slots 3 on one heat pipe fin 2 are designed with unequal lengths, which helps the fluid medium to form a lateral turbulent state when flowing through multiple fin discharge slots 3 of different lengths, thereby enhancing the heat exchange effect between the hot medium and the cold medium. The fin discharge slots 3 on each heat pipe fin 2 are arranged at unequal intervals along the length direction of the heat pipe fin 2. The fin discharge slots 3 are arranged at unequal intervals so that the fluid medium forms a turbulent state when flowing through multiple fin discharge slots 3 on a heat pipe fin 2, thereby enhancing the heat exchange effect between the hot medium and the cold medium.

[0041] The fin discharge slot 3 is a rounded rectangular hole, and the aspect ratio of the rounded rectangular hole is 1: 10. The hole design with this aspect ratio is helpful to form a strong fluid flow rate, better flush the ash deposits in the local dead space, and clean the heat pipe fin 2.

[0042] The width of the fin discharge slot 3 is 1 / 3 of the width of the heat pipe fin 2. The design of the ratio of the width of the fin discharge slot 3 to the width of the heat pipe fin 2 helps to maintain the heat pipe fin 2 with a high structural strength, and will not weaken the strength of the heat pipe fin 2 due to an excessively large area of ​​the opening slot, nor will it weaken the flow of the fluid medium due to an excessively small area of ​​the opening slot.

[0043] The heat pipe fin 2 is fixedly connected to the outer wall of the microporous heat pipe 1 as a whole, and the heat pipe fin 2 and the outer wall of the microporous heat pipe 1 are both aluminum alloy profile structures. The aluminum alloy profile effectively solves the problem of chemical incompatibility between copper and steel pipes and phase change working fluids, which leads to corrosion inside the microporous heat pipe 1 and the generation of non-condensable gas hydrogen, ensuring that the microporous heat pipe 1 maintains excellent heat transfer function. The two ends of the microporous heat pipe 1 are sealed and welded. The microporous heat pipe 1 adopts a fully enclosed structure, and the liquid phase change working fluid in the internal cavity of the microporous heat pipe 1 will not leak or volatilize, effectively ensuring the sealing and safety reliability of the heat pipe.

[0044] Multiple heat pipe fins 2 are arranged in parallel with equal spacing, (see Figure 5 The heat pipe fins 2 are evenly arranged at equal intervals so that the heat of the hot medium can be evenly transferred to the cold medium, avoiding uneven heat exchange and poor local heat exchange effect. In this embodiment, three heat pipe fins 2 are arranged in the axial direction of each microporous heat pipe 1. Three heat pipe fins 2 are arranged on a microporous heat pipe 1, which can reasonably disperse and transfer the heat conducted by the microporous heat pipe 1 to each heat pipe fin 2, and the combined molding process of the microporous heat pipe 1 and the three heat pipe fins 2 is easy to realize and convenient to process.

[0045] So far, the technical solution of the utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings, but it is easy for those skilled in the art to understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Without departing from the principle of the utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the utility model.

[0046] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model are included in the protection scope of the utility model.

Claims

1. A trough-type microporous heat pipe heating radiator, characterized in that: include: Multiple microporous heat pipes, multiple heat pipe fins, and multiple groups of fin drainage slots; The plurality of microporous heat pipes are arranged in parallel, the microporous heat pipes penetrate the cold medium end and the hot medium end of the heat exchanger, and are vertically arranged between the cold medium and the hot medium; the axial direction of the microporous heat pipe is consistent with the medium flow direction; The heat pipe fins are orthogonally cross-fixedly arranged on the outer wall of the microporous heat pipe; The fin drainage slot is opened in the middle of the heat pipe fin in the height direction, and the fin drainage slot is a through hole.

2. The discharge trough type microporous heat pipe heating radiator according to claim 1 is characterized in that: The fin discharge slots on each of the heat pipe fins are arranged at unequal intervals along the length direction of the heat pipe fins.

3. The discharge trough type microporous heat pipe heating radiator according to claim 2 is characterized in that: Each heat pipe fin is provided with three fin leakage slots in the length direction, wherein the fin leakage slot farthest from the microporous heat pipe has the longest length, and the two fin leakage slots close to the microporous heat pipe have the shortest length.

4. The discharge trough type microporous heat pipe heating radiator according to claim 1, characterized in that: The length of the heat pipe fin extending from the outer wall of the microporous heat pipe is 10-20 times the width of the microporous heat pipe; the height of the heat pipe fin extending from the outer wall of the microporous heat pipe is 3-5 times the width of the microporous heat pipe; the thickness of the heat pipe fin is 1 / 8-1 / 5 of the outer width of the microporous heat pipe.

5. The discharge trough type microporous heat pipe heating radiator according to claim 1, characterized in that: The fin discharge slot is a rounded rectangular hole or an oblong hole, and the aspect ratio of the rounded rectangular hole or the oblong hole is 1:10-1:

15.

6. The discharge trough type microporous heat pipe heating radiator according to claim 5, characterized in that: The width of the fin discharge slot is 1 / 5-1 / 3 of the width of the heat pipe fin.

7. The discharge trough type microporous heat pipe heating radiator according to claim 1, characterized in that: The heat pipe fins are fixedly connected to the outer wall of the microporous heat pipe as a whole, and both the heat pipe fins and the outer wall of the microporous heat pipe are aluminum alloy profile structures.

8. The trough-type microporous heat pipe heating radiator according to claim 1, characterized in that: The plurality of heat pipe fins are arranged in parallel with equal intervals.

9. The discharge trough type microporous heat pipe heating radiator according to claim 8, characterized in that: Three heat pipe fins are arranged in the axial direction of each microporous heat pipe.

10. The trough-type microporous heat pipe heating radiator according to claim 1, characterized in that: Both ends of the microporous heat pipe are sealed and welded.

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