U-shaped heat exchanger for cooling conductive paste, U-shaped tube and heat dissipation method

Abstract

The invention belongs to the technical field of general heat exchange, and particularly relates to a heat exchange device used for fixing a tubular channel assembly of two heat exchange media, in particular to a U-shaped heat exchanger for cooling conductive paste, U-shaped pipes and a heat dissipation method. Conductive slurry to be cooled is conveyed in the U-shaped pipe, and a heat exchange medium flows outside the U-shaped pipe. The inner wall of the U-shaped pipe is coated with an insulating coating; a plurality of conductive assemblies are arranged on the inner wall of the U-shaped pipe; when the temperature of the conductive slurry in the U-shaped pipe exceeds the deformation temperature of the conductive assembly, the conductive assembly deforms and protrudes out of the inner wall of the U-shaped pipe, the metal piece in the conductive assembly makes contact with the insulating coating on the inner wall of the U-shaped pipe, the insulating coating on the inner wall of the U-shaped pipe loses the electrostatic adsorption force, and then the electrostatic adsorption force in the U-shaped pipe is eliminated; the inner wall of the U-shaped pipe is prevented from adsorbing particles, and heat exchange efficiency is ensured.

Description

Technical Field

[0001] The present invention belongs to the general field of heat exchange technology, and specifically relates to a heat exchange device with a fixed tubular channel assembly for two heat exchange media, and more particularly to a U-shaped heat exchanger, a U-shaped tube and a heat dissipation method for cooling a conductive slurry. Background Art

[0002] When conductive slurry is used for cooling in a heat exchanger, a deposition layer will form inside the tube wall due to electrostatic adsorption. The deposition layer will increase thermal resistance, hinder heat transfer, and thus lead to a decrease in heat exchange efficiency.

[0003] Therefore, due to the technical problem that the heat exchange efficiency is reduced due to electrostatic adsorption of particles in the pipeline, it is necessary to design a U-shaped heat exchanger, U-shaped tube and heat dissipation method for cooling the conductive slurry.

[0004] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of the prior art. Summary of the Invention

[0005] The embodiments of the present disclosure at least provide a U-shaped heat exchanger, a U-shaped tube, and a heat dissipation method for cooling a conductive slurry.

[0006] In a first aspect, an embodiment of the present disclosure provides a U-shaped heat exchanger, comprising: A bracket for fixing a plurality of U-shaped tubes, wherein the conductive slurry to be cooled is transported inside the U-shaped tubes and a heat exchange medium flows outside the U-shaped tubes; The inner wall of the U-shaped tube is coated with an insulating coating; The inner wall of the U-shaped tube is provided with a plurality of conductive components; When the temperature of the conductive slurry in the U-shaped tube exceeds the deformation temperature of the conductive component, the conductive component deforms so that the conductive component protrudes from the inner wall of the U-shaped tube. The metal parts in the conductive component contact the insulating coating on the inner wall of the U-shaped tube, causing the insulating coating on the inner wall of the U-shaped tube to lose its electrostatic adsorption force.

[0007] In an optional embodiment, the conductive component includes: memory metal and a metal piece; The memory metal is arranged in the inner wall of the U-shaped tube; The metal piece is arranged on the memory metal, and a portion of the metal piece away from the memory metal is coated with an insulating coating; When the temperature of the conductive paste inside the U-shaped tube exceeds the deformation temperature of the memory metal, the memory metal deforms, causing the part of the metal part that is not coated with the insulating coating to protrude from the inner wall of the U-shaped tube and contact the insulating coating on the inner wall of the U-shaped tube, causing the insulating coating on the inner wall of the U-shaped tube to lose its electrostatic adsorption force.

[0008] In an optional embodiment, the U-shaped tube includes: a curved tube and a pair of parallel straight tubes; The liquid inlet of the bent pipe is connected to one of the straight pipes, and the liquid outlet of the bent pipe is connected to the other straight pipe; A plurality of grooves are equidistantly provided on the inner wall of the straight pipe corresponding to the liquid inlet of the bent pipe in the circumferential direction, and the grooves are close to the liquid inlet of the bent pipe; The groove corresponds to the conductive component; The memory metal is arranged in the groove.

[0009] In an optional embodiment, when the temperature of the conductive paste in the U-shaped tube exceeds the deformation temperature of the memory metal, the memory metal deforms, causing the portion of the metal part that is not coated with the insulating coating to protrude from the inner wall of the U-shaped tube. At this time, the flow rate of the conductive paste increases when flowing through the metal part.

[0010] In an optional embodiment, the U-shaped heat exchanger further includes: a shell; The U-shaped tube is fixed in the shell by a bracket; A plurality of baffles are provided in the shell to adjust the flow direction of the heat medium; The shell is filled with a heat exchange medium; The shell is provided with a water inlet and a water outlet, so that the heat exchange medium is introduced into the shell through the water inlet and flows out of the shell through the water outlet, thereby making the heat exchange medium flow.

[0011] In a second aspect, the embodiments of the present disclosure further provide a U-shaped tube used in the above-mentioned U-shaped heat exchanger, wherein the inner wall of the U-shaped tube is coated with an insulating coating; The inner wall of the U-shaped tube is provided with a plurality of conductive components; When the temperature of the conductive slurry in the U-shaped tube exceeds the deformation temperature of the conductive component, the conductive component deforms so that the conductive component protrudes from the inner wall of the U-shaped tube. The metal parts in the conductive component contact the insulating coating on the inner wall of the U-shaped tube, causing the insulating coating on the inner wall of the U-shaped tube to lose its electrostatic adsorption force.

[0012] In an optional embodiment, the conductive component includes: memory metal and a metal piece; The memory metal is arranged in the inner wall of the U-shaped tube; The metal piece is arranged on the memory metal, and a portion of the metal piece away from the memory metal is coated with an insulating coating; When the temperature of the conductive paste inside the U-shaped tube exceeds the deformation temperature of the memory metal, the memory metal deforms, causing the part of the metal part that is not coated with the insulating coating to protrude from the inner wall of the U-shaped tube and contact the insulating coating on the inner wall of the U-shaped tube, causing the insulating coating on the inner wall of the U-shaped tube to lose its electrostatic adsorption force.

[0013] In an optional embodiment, the U-shaped tube includes: a curved tube and a pair of parallel straight tubes; The liquid inlet of the bent pipe is connected to one of the straight pipes, and the liquid outlet of the bent pipe is connected to the other straight pipe; A plurality of grooves are equidistantly provided on the inner wall of the straight pipe corresponding to the liquid inlet of the bent pipe in the circumferential direction, and the grooves are close to the liquid inlet of the bent pipe; The groove corresponds to the conductive component; The memory metal is arranged in the groove.

[0014] In an optional embodiment, when the temperature of the conductive paste in the U-shaped tube exceeds the deformation temperature of the memory metal, the memory metal deforms, causing the portion of the metal part that is not coated with the insulating coating to protrude from the inner wall of the U-shaped tube. At this time, the flow rate of the conductive paste increases when flowing through the metal part.

[0015] In a third aspect, the present disclosure also provides a heat dissipation method using the above-mentioned U-shaped heat exchanger, comprising: The conductive slurry to be cooled is transported through a U-shaped tube; The conductive slurry to be cooled is cooled by the heat exchange medium outside the U-shaped tube; When the temperature of the conductive slurry in the U-shaped tube exceeds the deformation temperature of the conductive component, the conductive component deforms so that the conductive component protrudes from the inner wall of the U-shaped tube. The metal parts in the conductive component contact the insulating coating on the inner wall of the U-shaped tube, causing the insulating coating on the inner wall of the U-shaped tube to lose its electrostatic adsorption force.

[0016] The beneficial effect of the present invention is that the U-shaped heat exchanger includes: a bracket, which is used to fix a plurality of U-shaped tubes, wherein a conductive slurry to be cooled is transported in the U-shaped tube, and a heat exchange medium flows outside the U-shaped tube; the inner wall of the U-shaped tube is coated with an insulating coating; the inner wall of the U-shaped tube is provided with a plurality of conductive components; when the temperature of the conductive slurry in the U-shaped tube exceeds the deformation temperature of the conductive component, the conductive component is deformed so that the conductive component protrudes from the inner wall of the U-shaped tube, and the metal parts in the conductive component contact the insulating coating on the inner wall of the U-shaped tube, so that the insulating coating on the inner wall of the U-shaped tube loses the electrostatic adsorption force, thereby achieving the elimination of the electrostatic adsorption force in the U-shaped tube, avoiding the adsorption of particles on the inner wall of the U-shaped tube, and ensuring the heat exchange efficiency.

[0017] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited herein and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A schematic structural diagram of a U-shaped heat exchanger provided in an embodiment of the present disclosure; Figure 2 A schematic diagram of the internal structure of a U-shaped heat exchanger provided in an embodiment of the present disclosure; Figure 3 A cross-sectional view of a U-shaped tube provided in an embodiment of the present disclosure; Figure 4 for Figure 3 Enlarged schematic diagram of part A.

[0021] In the picture: 1 is a U-shaped tube, 11 is a curved tube, 12 is a straight tube, and 13 is a groove; 2 is a conductive component, 21 is a memory metal, and 22 is a metal part; 3 is the shell, 31 is the water inlet, 32 is the water outlet, 33 is the deflection baffle, and 34 is the bracket. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0023] As used herein, the phrases "in one embodiment," "according to one embodiment," "in some embodiments," and the like generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Thus, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," and the like are used to "serve as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations, aspects, or designs. Instead, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.

[0024] Conductive pastes typically contain metal particles (such as silver and copper) and organic or inorganic binders. These components may undergo electrochemical reactions with the metal materials used in heat exchanger pipes. Heat exchanger tubes in related art are typically made of metal, and there is a potential difference between different metal materials. Therefore, when the conductive paste comes into direct contact with the metal pipe wall, it may form a galvanic cell, leading to electrochemical corrosion. To address this, related art applies an insulating coating to the inner wall of the heat exchange tube to prevent direct contact between the conductive paste and the metal pipe wall.

[0025] However, the inventors discovered that the presence of the insulating coating prevents static electricity generated by friction between the slurry and the tube wall during transport from being released, leading to static adsorption. When this occurs, metal particles adsorbed to the tube wall form a deposit on the heat exchanger surface. This deposit increases the thickness of the heat exchange tube wall, increasing thermal resistance and hindering heat transfer, thus reducing heat transfer efficiency.

[0026] The inventors also discovered that in related technologies for graphene electronic conductive slurry and automated production processes, a silane coupling agent and deionized water are added to mixed slurry A, which is then placed in a heating tank and heated. Nitrogen gas is continuously introduced during the heating process at a flow rate of 50-100 ml / min. The heating temperature is 60°C-80°C, and the mixture is then held constant for 30 minutes before slowly cooling to room temperature to obtain mixed slurry B. This indicates that the graphene conductive slurry can reach a temperature of 80°C after heating and needs to be cooled to room temperature (25°C). However, since the viscosity of the graphene conductive slurry is less than 500 mPa·s when the temperature exceeds 80°C, the conductive particles in the low-viscosity conductive slurry are evenly dispersed, with a specific surface area greater than 1000 m² / g and a high concentration of charged particles per unit volume. At high temperatures, the particles experience intense thermal motion, increasing the probability of collision with the tube wall and peaking the charge transfer. Therefore, static charge removal needs to be performed at the initial stage of heat exchange and stopped at the end of the heat exchange period.

[0027] The defects in the above solutions are the results obtained by the inventors after practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed by the present disclosure in this article should be the contributions made by the inventors to the present disclosure during the disclosure process.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0029] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0030] like Figure 3 and Figure 4 As shown, at least one disclosed embodiment provides a U-shaped heat exchanger, including: a bracket 34, which is used to fix a plurality of U-shaped tubes 1, wherein a conductive slurry to be cooled is transported in the U-shaped tube 1, and a heat exchange medium flows outside the U-shaped tube 1; the inner wall of the U-shaped tube 1 is coated with an insulating coating; the inner wall of the U-shaped tube 1 is provided with a plurality of conductive components 2; when the temperature of the conductive slurry in the U-shaped tube 1 exceeds the deformation temperature of the conductive component 2, the conductive component 2 is deformed so that the conductive component 2 protrudes from the inner wall of the U-shaped tube 1, and the metal parts 22 in the conductive component 2 contact the insulating coating on the inner wall of the U-shaped tube 1, so that the insulating coating on the inner wall of the U-shaped tube 1 loses the electrostatic adsorption force, thereby achieving the elimination of the electrostatic adsorption force in the U-shaped tube 1, avoiding the adsorption of particles on the inner wall of the U-shaped tube 1, and ensuring the heat exchange efficiency.

[0031] In this embodiment, the metal part 22 in the conductive component 2 contacts the insulating coating on the inner wall of the U-shaped tube 1 to form a conductive loop, thereby dissipating the static electricity on the insulating coating on the inner wall of the U-shaped tube 1, causing the insulating coating on the inner wall of the U-shaped tube 1 to lose its electrostatic adsorption force, thereby causing the particles originally adsorbed on the insulating coating to fall off.

[0032] In this embodiment, the metal member 22 is made of conductive material.

[0033] like Figure 4 As shown, in an optional embodiment, the conductive component 2 includes: a memory metal 21 and a metal part 22; the memory metal 21 is arranged in the inner wall of the U-shaped tube 1; the metal part 22 is arranged on the memory metal 21, and the part of the metal part 22 away from the memory metal 21 is coated with an insulating coating; when the temperature of the conductive paste in the U-shaped tube 1 exceeds the deformation temperature of the memory metal 21, the memory metal 21 deforms, so that the part of the metal part 22 that is not coated with the insulating coating protrudes from the inner wall of the U-shaped tube 1 and contacts the insulating coating on the inner wall of the U-shaped tube 1, causing the insulating coating on the inner wall of the U-shaped tube 1 to lose its electrostatic adsorption force.

[0034] In this embodiment, the memory metal 21 can be made of Ti-Al-Cr alloy, which can be deformed and extended at 60-80°C and retracted below this temperature. Moreover, this period of time is much shorter than the overall heat exchange time, and the metal strip stays in the heat exchange tube for a short time, thus avoiding electrochemical corrosion.

[0035] In this embodiment, when the temperature of the conductive paste drops, the memory metal 21 will recover its deformation, driving the metal member 22 to retract into the corresponding groove 13, thereby preventing the metal member 22 from being in contact with the conductive paste for a long time and thus avoiding electrochemical corrosion.

[0036] like Figure 3As shown, in an optional embodiment, the U-shaped tube 1 includes: a curved tube 11 and a pair of parallel straight tubes 12; the liquid inlet of the curved tube 11 is connected to one of the straight tubes 12, and the liquid outlet of the curved tube 11 is connected to the other straight tube 12; a plurality of grooves 13 are equidistantly provided on the inner wall of the straight tube 12 corresponding to the liquid inlet of the curved tube 11, and the grooves 13 are close to the liquid inlet of the curved tube 11; the grooves 13 correspond to the conductive component 2; and the memory metal 21 is arranged in the grooves 13.

[0037] In this embodiment, a side surface of the memory metal 21 with a smaller area can be connected to the corresponding inner wall of the groove 13, and the remaining side surfaces of the memory metal 21 are slidingly connected to the corresponding inner walls of the groove 13, so that the metal part 22 can be pushed out of the groove 13 when the memory metal 21 is deformed.

[0038] In this embodiment, when the memory metal 21 is not deformed, the memory metal 21 and the metal part 22 are both in the groove 13, and the side wall of the metal part 22 is in contact with the inner wall of the groove 13. At this time, the side of the metal part 22 away from the memory metal 21 is on the same arc surface as the inner wall of the straight tube 12, that is, the metal part 22 does not protrude from the groove 13. At this time, the conductive paste in the U-shaped tube 1 contacts the insulating coating applied on the surface of the metal part 22. Only when the memory metal 21 is deformed will it drive the metal part 22 to protrude from the corresponding groove 13 and enter the straight tube 12. The part of the metal part 22 that is not coated with the insulating coating contacts the insulating coating coated on the inner walls of the straight tube 12 and the curved tube 11 to remove static electricity.

[0039] In an optional embodiment, when the temperature of the conductive paste in the U-shaped tube 1 exceeds the deformation temperature of the memory metal 21, the memory metal 21 deforms, causing the portion of the metal part 22 that is not coated with the insulating coating to protrude from the inner wall of the U-shaped tube 1. At this time, the flow rate of the conductive paste increases when it flows through the metal part 22.

[0040] In this embodiment, since the metal part 22 will partially block the flow path of the conductive slurry in the original straight tube 12 after it is extended, the original flow channel diameter is shortened at this time, and the flow velocity at this location is increased. The high flow velocity has a more obvious impact on the particles previously electrostatically adsorbed, helping them to fall off, and although the high flow velocity will increase the degree of friction here, since this place is a metal conductor, more static electricity can also be discharged.

[0041] In this embodiment, the conductive paste flows in the following direction: Figure 3 As shown in F.

[0042] like Figure 1 and Figure 2As shown, in an optional embodiment, the U-shaped heat exchanger further includes: a shell 3; the U-shaped tube 1 is fixed in the shell 3 by a bracket 34; a plurality of deflection baffles 33 are provided in the shell 3 to adjust the flow direction of the heat medium; the shell 3 is filled with a heat exchange medium; and a water inlet 31 and a water outlet 32 are provided on the shell 3 to allow the heat exchange medium to be introduced into the shell 3 through the water inlet 31 and to allow the heat exchange medium to flow out of the shell 3 through the water outlet 32.

[0043] In this embodiment, the heat exchange medium in the housing 3 flows through the water inlet 31 and the water outlet 32, which can better dissipate the heat of the conductive slurry.

[0044] At least one other disclosed embodiment also provides a U-shaped tube 1 used in the above-mentioned U-shaped heat exchanger, wherein the inner wall of the U-shaped tube 1 is coated with an insulating coating; a plurality of conductive components 2 are provided on the inner wall of the U-shaped tube 1; when the temperature of the conductive slurry in the U-shaped tube 1 exceeds the deformation temperature of the conductive component 2, the conductive component 2 deforms so that the conductive component 2 protrudes from the inner wall of the U-shaped tube 1, and the metal parts 22 in the conductive component 2 contact the insulating coating on the inner wall of the U-shaped tube 1, causing the insulating coating on the inner wall of the U-shaped tube 1 to lose its electrostatic adsorption force.

[0045] In an optional embodiment, the conductive component 2 includes: a memory metal 21 and a metal part 22; the memory metal 21 is arranged in the inner wall of the U-shaped tube 1; the metal part 22 is arranged on the memory metal 21, and the part of the metal part 22 away from the memory metal 21 is coated with an insulating coating; when the temperature of the conductive slurry in the U-shaped tube 1 exceeds the deformation temperature of the memory metal 21, the memory metal 21 deforms, so that the part of the metal part 22 that is not coated with the insulating coating protrudes from the inner wall of the U-shaped tube 1 and contacts the insulating coating on the inner wall of the U-shaped tube 1, causing the insulating coating on the inner wall of the U-shaped tube 1 to lose its electrostatic adsorption force.

[0046] In an optional embodiment, the U-shaped tube 1 includes: a curved tube 11 and a pair of parallel straight tubes 12; the liquid inlet of the curved tube 11 is connected to one of the straight tubes 12, and the liquid outlet of the curved tube 11 is connected to the other straight tube 12; a plurality of grooves 13 are equidistantly provided on the inner wall of the straight tube 12 corresponding to the liquid inlet of the curved tube 11, and the grooves 13 are close to the liquid inlet of the curved tube 11; the grooves 13 correspond to the conductive component 2; and the memory metal 21 is arranged in the grooves 13.

[0047] In an optional embodiment, when the temperature of the conductive paste in the U-shaped tube 1 exceeds the deformation temperature of the memory metal 21, the memory metal 21 deforms, causing the portion of the metal part 22 that is not coated with the insulating coating to protrude from the inner wall of the U-shaped tube 1. At this time, the flow rate of the conductive paste increases when it flows through the metal part 22, impacting the particles attached to the inner wall of the curved tube 11.

[0048] At least one other disclosed embodiment also provides a heat dissipation method using the above-mentioned U-shaped heat exchanger, including: transporting a conductive slurry to be cooled through the U-shaped tube 1; cooling the conductive slurry to be cooled through a heat exchange medium outside the U-shaped tube 1; when the temperature of the conductive slurry in the U-shaped tube 1 exceeds the deformation temperature of the conductive component 2, the conductive component 2 deforms so that the conductive component 2 protrudes from the inner wall of the U-shaped tube 1, and the metal part 22 in the conductive component 2 contacts the insulating coating on the inner wall of the U-shaped tube 1, causing the insulating coating on the inner wall of the U-shaped tube 1 to lose its electrostatic adsorption force.

[0049] To sum up, the U-shaped heat exchanger includes: a bracket 34, which is used to fix a plurality of U-shaped tubes 1, in which a conductive slurry to be cooled is transported, and a heat exchange medium flows outside the U-shaped tube 1; the inner wall of the U-shaped tube 1 is coated with an insulating coating; the inner wall of the U-shaped tube 1 is provided with a plurality of conductive components 2; when the temperature of the conductive slurry in the U-shaped tube 1 exceeds the deformation temperature of the conductive component 2, the conductive component 2 is deformed so that the conductive component 2 protrudes from the inner wall of the U-shaped tube 1, and the metal parts 22 in the conductive component 2 contact the insulating coating on the inner wall of the U-shaped tube 1, so that the insulating coating on the inner wall of the U-shaped tube 1 loses its electrostatic adsorption force, thereby eliminating the electrostatic adsorption force in the U-shaped tube 1, avoiding the adsorption of particles on the inner wall of the U-shaped tube 1, and ensuring heat exchange efficiency.

[0050] In the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0051] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, terms such as "first", "second" and other numerical terms do not imply an order or sequence when used herein unless expressly indicated above. Therefore, without departing from the teachings of the example embodiments, the first element, component, region, layer or section discussed above may be referred to as a second element, component, region, layer or section.

[0052] Spatially relative terms, such as "inside," "outside," "below," "beneath," "down," "above," "on," etc., may be used herein to describe the relationship of one element or feature to another element or feature as illustrated in the figures. In addition to the orientations depicted in the figures, spatially relative terms may be intended to encompass different orientations of the device in use or operation. For example, if the device in the figures is flipped, an element described as being "below" or "below" other elements or features will be oriented to be "above" the other elements or features. Thus, the example term "below" may encompass both above and below orientations. The device may be oriented otherwise (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0053] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. A U-shaped heat exchanger, characterized in that: include: A bracket (34) is used to fix a plurality of U-shaped tubes (1), wherein a conductive slurry to be cooled is transported inside the U-shaped tubes (1), and a heat exchange medium flows outside the U-shaped tubes (1); The inner wall of the U-shaped tube (1) is coated with an insulating coating; The inner wall of the U-shaped tube (1) is provided with a plurality of conductive components (2); When the temperature of the conductive paste in the U-shaped tube (1) exceeds the deformation temperature of the conductive component (2), the conductive component (2) deforms so that the conductive component (2) protrudes from the inner wall of the U-shaped tube (1), and the metal part (22) in the conductive component (2) contacts the insulating coating on the inner wall of the U-shaped tube (1), causing the insulating coating on the inner wall of the U-shaped tube (1) to lose its electrostatic adsorption force.

2. The U-shaped heat exchanger according to claim 1, characterized in that: The conductive component (2) comprises: memory metal (21) and a metal part (22); The memory metal (21) is arranged in the inner wall of the U-shaped tube (1); The metal piece (22) is arranged on the memory metal (21), and a portion of the metal piece (22) away from the memory metal (21) is coated with an insulating coating; When the temperature of the conductive paste in the U-shaped tube (1) exceeds the deformation temperature of the memory metal (21), the memory metal (21) deforms, causing the portion of the metal part (22) not coated with the insulating coating to protrude from the inner wall of the U-shaped tube (1) and contact the insulating coating on the inner wall of the U-shaped tube (1), causing the insulating coating on the inner wall of the U-shaped tube (1) to lose its electrostatic adsorption force, and at this time, the flow rate of the conductive paste when flowing through the metal part (22) increases.

3. The U-shaped heat exchanger according to claim 2, characterized in that: The U-shaped tube (1) comprises: a curved tube (11) and a pair of parallel straight tubes (12); The liquid inlet of the curved pipe (11) is connected to one of the straight pipes (12), and the liquid outlet of the curved pipe (11) is connected to the other straight pipe (12); A plurality of grooves (13) are equidistantly provided on the inner wall of the straight tube (12) corresponding to the liquid inlet of the curved tube (11), and the grooves (13) are close to the liquid inlet of the curved tube (11); The groove (13) corresponds to the conductive component (2); The memory metal (21) is arranged in the groove (13).

4. The U-shaped heat exchanger according to claim 1, wherein: The U-shaped heat exchanger further includes: a shell (3); The U-shaped tube (1) is fixed in the housing (3) via a bracket (34); A plurality of deflection baffles (33) are provided in the shell (3) to adjust the flow direction of the heat medium; The shell (3) is filled with a heat exchange medium; The shell (3) is provided with a water inlet (31) and a water outlet (32), so that a heat exchange medium can be introduced into the shell (3) through the water inlet (31) and the heat exchange medium can be flowed out of the shell (3) through the water outlet (32), thereby allowing the heat exchange medium to flow.

5. A U-shaped tube, characterized in that: The inner wall of the U-shaped tube (1) is coated with an insulating coating; The inner wall of the U-shaped tube (1) is provided with a plurality of conductive components (2); When the temperature of the conductive paste in the U-shaped tube (1) exceeds the deformation temperature of the conductive component (2), the conductive component (2) deforms so that the conductive component (2) protrudes from the inner wall of the U-shaped tube (1), and the metal part (22) in the conductive component (2) contacts the insulating coating on the inner wall of the U-shaped tube (1), causing the insulating coating on the inner wall of the U-shaped tube (1) to lose its electrostatic adsorption force.

6. The U-shaped tube according to claim 5, characterized in that: The conductive component (2) comprises: memory metal (21) and a metal part (22); The memory metal (21) is arranged in the inner wall of the U-shaped tube (1); The metal piece (22) is arranged on the memory metal (21), and a portion of the metal piece (22) away from the memory metal (21) is coated with an insulating coating; When the temperature of the conductive paste in the U-shaped tube (1) exceeds the deformation temperature of the memory metal (21), the memory metal (21) deforms, causing the portion of the metal part (22) not coated with the insulating coating to protrude from the inner wall of the U-shaped tube (1) and contact the insulating coating on the inner wall of the U-shaped tube (1), causing the insulating coating on the inner wall of the U-shaped tube (1) to lose its electrostatic adsorption force. At this time, the flow rate of the conductive paste increases when it flows through the metal part (22).

7. The U-shaped tube according to claim 6, characterized in that: The U-shaped tube (1) comprises: a curved tube (11) and a pair of parallel straight tubes (12); The liquid inlet of the curved pipe (11) is connected to one of the straight pipes (12), and the liquid outlet of the curved pipe (11) is connected to the other straight pipe (12); A plurality of grooves (13) are equidistantly provided on the inner wall of the straight tube (12) corresponding to the liquid inlet of the curved tube (11), and the grooves (13) are close to the liquid inlet of the curved tube (11); The groove (13) corresponds to the conductive component (2); The memory metal (21) is arranged in the groove (13).

8. A heat dissipation method for a U-shaped heat exchanger, characterized in that: include: Conveying the conductive slurry to be cooled through the U-shaped tube (1); Cooling the conductive slurry to be cooled by the heat exchange medium outside the U-shaped tube (1); When the temperature of the conductive paste in the U-shaped tube (1) exceeds the deformation temperature of the conductive component (2), the conductive component (2) deforms so that the conductive component (2) protrudes from the inner wall of the U-shaped tube (1), and the metal part (22) in the conductive component (2) contacts the insulating coating on the inner wall of the U-shaped tube (1), causing the insulating coating on the inner wall of the U-shaped tube (1) to lose its electrostatic adsorption force.

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