A plate type microchannel heat exchanger

Abstract

The present invention relates to the technical field of microchannel heat exchangers, specifically a plate-type microchannel heat exchanger, comprising a body, the upper surface of the body being connected to a hot fluid inlet, the lower surface of the body being connected to a cold fluid outlet, the inner walls of the hot fluid inlet and the cold fluid outlet being both provided with protective mechanisms, the protective mechanisms comprising a connecting groove, the inner walls of the hot fluid inlet and the cold fluid outlet being both provided with connecting grooves, the inner walls of the connecting grooves being slidably connected to a sliding plate, and a fixed block being fixedly installed on one side of the sliding plate close to the inner wall of the hot fluid inlet. The present invention, by providing the protective mechanism, enables the heat exchanger itself to have a certain self-cleaning ability, avoids the situation in which a large amount of dust accumulates on the surface of the heat exchanger during long-term use, causing dust to enter the heat exchanger and cause heat exchanger failure, improves the performance of the heat exchanger, and at the same time extends the service life of the heat exchanger.

Description

Technical Field

[0001] The invention relates to the technical field of microchannel heat exchangers, and in particular to a plate-type microchannel heat exchanger. Background Art

[0002] Microchannel heat exchangers are widely used in cooling and heat dissipation components of various precision instruments and micro-electromechanical systems. They have many advantages such as compact structure, light weight, high heat exchange efficiency, safe operation, high reliability, etc. They can work in small spaces to meet the heat dissipation requirements of equipment.

[0003] Traditional microchannel heat exchangers lack corresponding mechanisms, so dust will accumulate on the surface when the heat exchanger is working. If it is not cleaned for a long time, the dust will enter the inside of the heat exchanger. However, due to the special working location of the microchannel heat exchanger, it is often difficult to reach it manually. Therefore, the dust accumulated on the surface of the heat exchanger cannot be cleaned in time, which will directly affect the performance of the entire heat exchanger, causing damage to the heat exchanger and reducing the service life of the heat exchanger. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a plate-type microchannel heat exchanger.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a plate-type microchannel heat exchanger, comprising a main body, the upper surface of the main body is connected to a hot fluid inlet, the lower surface of the main body is connected to a cold fluid outlet, and the inner walls of the hot fluid inlet and the cold fluid outlet are both provided with protective mechanisms.

[0006] The protection mechanism includes a connecting groove, and the inner walls of the hot fluid inlet and the cold fluid outlet are both provided with connecting grooves, the inner walls of the connecting grooves are slidably connected with sliding plates, a fixed block is fixedly installed on the side of the sliding plate close to the inner wall of the hot fluid inlet, and a connecting plate is fixedly installed on the side of the sliding plate away from the inner wall of the hot fluid inlet, an elastic spring is fixedly installed between one end of the sliding plate close to the inner wall of the connecting groove and the inner wall of the connecting groove, limiting blocks are fixedly installed on both sides of the sliding plate, and a brush plate is fixedly installed on the end of the connecting plate away from the sliding plate.

[0007] Preferably, the inner wall of the connecting groove is symmetrically provided with limiting grooves, and the limiting block is slidably connected to the inner wall of the limiting groove.

[0008] Preferably, the connecting plate is fixedly connected to the outer surface of the brush plate by bolts, and artificial fibers are fixedly installed on one side of the brush plate close to the body.

[0009] Preferably, mounting holes are provided on both the upper surface and the lower surface of the body, and the mounting holes are provided in two groups and are symmetrically distributed.

[0010] Preferably, a sealing mechanism is provided on the inner wall of the connecting groove, and the sealing mechanism includes a sealing tube. A sealing tube is fixedly installed on one side of the inner wall of the connecting groove close to the hot fluid inlet, and the outer surface of the sealing tube is connected to a connecting tube, and the end of the connecting tube away from the sealing tube is connected to an air bag.

[0011] Preferably, a pressing block is fixedly mounted on a side of the fixed block close to the airbag, and the sliding plate is slidably connected to the outer surface of the sealing tube.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are:

[0013] 1. In the present invention, when the staff uses the plate-type microchannel heat exchanger, the staff can use the mounting holes on the outer surface of the body to first install the entire heat exchanger. Then, when the equipment starts to work, the hot fluid will flow in from the hot runner inlet. At this time, the fluid will flush the fixed plate. Under the action of the limit block and the limit groove, the fixed plate will move the sliding plate downward along the inner wall of the connecting groove and stretch the elastic spring. The sliding plate will move with the connecting plate while moving. The connecting plate will move downward with the brush plate when moving. At this time, the artificial fiber on the inner wall of the brush plate will directly contact the surface of the heat exchanger. The brush plate will contact the surface of the heat exchanger to remove dust on the surface of the heat exchanger. At the same time, the brush plate will protect the surface of the heat exchanger. When the equipment is turned off, the elastic spring rebounds and brings the brush plate back to its original position. In the process of the brush plate returning to its original position, the artificial fiber will clean the surface of the heat exchanger again to prevent dust from accumulating on the surface of the heat exchanger. By setting up this protection mechanism, the heat exchanger itself has a certain self-cleaning ability, which avoids the situation where a large amount of dust accumulates on the surface of the heat exchanger during long-term use, resulting in dust entering the inside of the heat exchanger and causing heat exchanger failure. The performance of the heat exchanger is improved, and the service life of the heat exchanger is extended.

[0014] 2. In the present invention, when the plate-type microfluidic channel heat exchanger is working, the fluid will move with the fixed block. When the fixed block is moving, it will move downward with the pressure block. When it moves to the final position, the pressure block will directly squeeze the airbag, and then the gas in the airbag will directly enter the sealing tube through the connecting tube. The sealing tube will expand and then seal the gap between the sliding plate and the connecting groove, thereby preventing the fluid from seeping out through the gap between the sliding plate and the connecting groove. By setting up the sealing mechanism, the sealing performance of the entire device is effectively improved, avoiding the occurrence of heat exchanger failure caused by fluid seepage, and ensuring the normal use of the entire heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the main structure of a plate-type microchannel heat exchanger is provided for the present invention;

[0016] Figure 2The present invention provides a schematic diagram of the structure of a protection mechanism for a plate-type microchannel heat exchanger;

[0017] Figure 3 The present invention proposes a plate-type microchannel heat exchanger Figure 2 Schematic diagram of the structure at A in the middle;

[0018] Figure 4 The present invention proposes a plate-type microchannel heat exchanger Figure 2 Side view of the structure;

[0019] Figure 5 The present invention proposes a plate-type microchannel heat exchanger Figure 4 Schematic diagram of the structure at B in the middle;

[0020] Figure 6 The present invention provides a structural schematic diagram of a sealing mechanism of a plate-type microchannel heat exchanger;

[0021] Figure 7 The present invention proposes a plate-type microchannel heat exchanger Figure 6 Schematic diagram of the structure at point C in the middle.

[0022] Legend:

[0023] 1. Main body; 2. Hot fluid inlet; 3. Cold fluid outlet; 4. Protective mechanism; 5. Mounting hole; 6. Sealing mechanism; 401. Connecting groove; 402. Sliding plate; 403. Fixed block; 404. Connecting plate; 405. Elastic spring; 406. Limiting block; 407. Brush plate; 601. Sealing tube; 602. Connecting tube; 603. Air bag; 604. Pressing block. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the 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, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0026] See also Figure 1-7The present invention provides a technical solution: a plate-type microchannel heat exchanger, comprising a body 1, the upper surface of the body 1 is connected with a hot fluid inlet 2, the lower surface of the body 1 is connected with a cold fluid outlet 3, the inner walls of the hot fluid inlet 2 and the cold fluid outlet 3 are both provided with a protective mechanism 4, the protective mechanism 4 comprises a connecting groove 401, the inner walls of the hot fluid inlet 2 and the cold fluid outlet 3 are both provided with a connecting groove 401, the inner wall of the connecting groove 401 is slidably connected with a sliding plate 402, a fixed block 403 is fixedly installed on the side of the sliding plate 402 close to the inner wall of the hot fluid inlet 2, a connecting plate 404 is fixedly installed on the side of the sliding plate 402 away from the inner wall of the hot fluid inlet 2, an elastic spring 405 is fixedly installed between one end of the sliding plate 402 close to the inner wall of the connecting groove 401 and the inner wall of the connecting groove 401, limiting blocks 406 are fixedly installed on both sides of the sliding plate 402, and a brush plate 407 is fixedly installed on one end of the connecting plate 404 away from the sliding plate 402.

[0027] In this embodiment: when the staff uses the plate-type microfluidic channel heat exchanger, the staff can use the mounting hole 5 on the outer surface of the main body 1 to first install the entire heat exchanger. Then, when the equipment starts working, the hot fluid will flow in from the hot runner inlet. At this time, the fluid will flush the fixed plate. Under the action of the limit block 406 and the limit groove, the fixed plate will bring the sliding plate 402 to move downward along the inner wall of the connecting groove 401 and stretch the elastic spring 405. The sliding plate 402 will move with the connecting plate 404 while moving. The connecting plate 404 will move downward with the brush plate 407 when moving. At this time, the artificial fiber on the inner wall of the brush plate 407 will directly The brush plate 407 is in contact with the outer surface of the heat exchanger to remove dust on the surface of the heat exchanger. At the same time, the brush plate 407 also protects the surface of the heat exchanger. When the equipment is turned off, the elastic spring 405 rebounds and brings the brush plate 407 back to its original position. In the process of the brush plate 407 returning to its original position, the artificial fiber will clean the surface of the heat exchanger at one time to prevent dust from accumulating on the surface of the heat exchanger. By setting the protection mechanism 4, the heat exchanger itself has a certain self-cleaning ability, which avoids the situation where a large amount of dust accumulates on the surface of the heat exchanger during long-term use, resulting in dust entering the inside of the heat exchanger and causing heat exchanger failure, thereby improving the performance of the heat exchanger and extending the service life of the heat exchanger.

[0028] Specifically, the inner wall of the connection groove 401 is symmetrically provided with limiting grooves, and the limiting block 406 is slidably connected to the inner wall of the limiting groove.

[0029] In this embodiment, the matching effect between the limiting block 406 and the limiting groove ensures that the sliding plate 402 can slide normally in the connecting groove 401 .

[0030] Specifically, the connecting plate 404 is fixedly connected to the outer surface of the brush plate 407 by bolts, and a side of the brush plate 407 close to the body 1 is fixedly installed with artificial fibers.

[0031] In this embodiment, the brush plate 407 and the connecting plate 404 are connected tightly and fixedly together by bolts. The artificial fiber is soft in texture and will not damage the heat exchanger when cleaning the surface of the heat exchanger.

[0032] Specifically, mounting holes 5 are provided on both the upper surface and the lower surface of the body 1 , and the mounting holes 5 are provided in two groups and are symmetrically distributed.

[0033] In this embodiment, the two groups of mounting holes 5 are symmetrically distributed to ensure that the entire heat exchanger can be completely fixed during the installation process and that the heat exchanger will not become loose.

[0034] Specifically, a sealing mechanism 6 is provided on the inner wall of the connecting groove 401, and the sealing mechanism 6 includes a sealing tube 601. The sealing tube 601 is fixedly installed on one side of the inner wall of the connecting groove 401 close to the hot fluid inlet 2. The outer surface of the sealing tube 601 is connected to a connecting tube 602, and the end of the connecting tube 602 away from the sealing tube 601 is connected to an air bag 603.

[0035] In this embodiment: when the plate-type microchannel heat exchanger is working, the fluid will move with the fixed block 403. When the fixed block 403 is moving, it will move downward with the pressing block 604. When it moves to the final position, the pressing block 604 will directly squeeze the airbag 603. Then the gas in the airbag 603 will directly enter the sealing tube 601 through the connecting tube 602. The sealing tube 601 will expand and then seal the gap between the sliding plate 402 and the connecting groove 401, thereby preventing the fluid from seeping out through the gap between the sliding plate 402 and the connecting groove 401. By setting the sealing mechanism 6, the sealing performance of the entire device is effectively improved, and the occurrence of heat exchanger failure caused by fluid seepage is avoided, thereby ensuring the normal use of the entire heat exchanger.

[0036] Specifically, a pressing block 604 is fixedly mounted on one side of the fixing block 403 close to the airbag 603 , and the sliding plate 402 is slidably connected to the outer surface of the sealing tube 601 .

[0037] In this embodiment: the pressing block 604 directly contacts the airbag 603 to squeeze out the gas in the airbag 603, thereby ensuring that the sealing tube 601 can expand and seal the gap.

[0038] Working principle: When the staff uses the plate-type microchannel heat exchanger, the staff can use the installation hole 5 on the outer surface of the main body 1 to install the entire heat exchanger first. Then when the equipment starts working, the hot fluid will flow in from the hot runner inlet. At this time, the fluid will flush the fixed plate. Under the action of the limit block 406 and the limit groove, the fixed plate will bring the sliding plate 402 to move downward along the inner wall of the connecting groove 401 and stretch the elastic spring 405. The sliding plate 402 will move with the connecting plate 404 while moving. When the connecting plate 404 moves, it will move downward with the brush plate 407. At this time, the artificial fiber on the inner wall of the brush plate 407 will directly contact the outer surface of the heat exchanger to remove the dust on the surface of the heat exchanger. At the same time, the brush plate 407 will also clean the surface of the heat exchanger. For protection, when the equipment is closed, the elastic spring 405 rebounds and brings the brush plate 407 back to its original position. In the process of the brush plate 407 returning to its original position, the artificial fiber will clean the surface of the heat exchanger once again to prevent dust from accumulating on the surface of the heat exchanger. When the plate-type microchannel heat exchanger is working, the fluid will move with the fixed block 403. When the fixed block 403 is moving, it will move downward with the pressing block 604. When it moves to the final position, the pressing block 604 will directly squeeze the airbag 603, and then the gas in the airbag 603 will directly enter the sealing tube 601 through the connecting tube 602. The sealing tube 601 will expand and then seal the gap between the sliding plate 402 and the connecting groove 401, thereby preventing the fluid from seeping out through the gap between the sliding plate 402 and the connecting groove 401.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in other forms. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A plate-type microchannel heat exchanger, comprising a body (1), characterized in that: The upper surface of the body (1) is connected to a hot fluid inlet (2), the lower surface of the body (1) is connected to a cold fluid outlet (3), and the inner wall of the hot fluid inlet (2) is provided with a protective mechanism (4); The protection mechanism (4) comprises a connecting groove (401), the inner wall of the hot fluid inlet (2) is provided with a connecting groove (401), the inner wall of the connecting groove (401) is slidably connected to a sliding plate (402), a fixed block (403) is fixedly mounted on a side of the sliding plate (402) close to the inner wall of the hot fluid inlet (2), a connecting plate (404) is fixedly mounted on a side of the sliding plate (402) away from the inner wall of the hot fluid inlet (2), and one end of the sliding plate (402) close to the inner wall of the connecting groove (401) is connected to the inner wall of the connecting groove (401). An elastic spring (405) is fixedly installed between the inner walls, limiting blocks (406) are fixedly installed on both sides of the sliding plate (402), a brush plate (407) is fixedly installed on one end of the connecting plate (404) away from the sliding plate (402), limiting grooves are symmetrically provided on the inner wall of the connecting groove (401), the limiting blocks (406) are slidably connected to the inner wall of the limiting groove, the connecting plate (404) is fixedly connected to the outer surface of the brush plate (407) by bolts, and artificial fibers are fixedly installed on one side of the brush plate (407) close to the body (1).

2. A plate-type microchannel heat exchanger according to claim 1, characterized in that: The upper surface and the lower surface of the body (1) are both provided with mounting holes (5), and the mounting holes (5) are provided in two groups and are symmetrically distributed.

3. The plate-type microchannel heat exchanger according to claim 1, characterized in that: The inner wall of the connecting groove (401) is provided with a sealing mechanism (6), the sealing mechanism (6) comprising a sealing tube (601), the sealing tube (601) being fixedly mounted on one side of the inner wall of the connecting groove (401) close to the hot fluid inlet (2), the outer surface of the sealing tube (601) being connected to a connecting tube (602), and one end of the connecting tube (602) away from the sealing tube (601) being connected to an air bag (603).

4. The plate-type microchannel heat exchanger according to claim 1, characterized in that: A pressing block (604) is fixedly mounted on one side of the fixed block (403) close to the airbag (603), and the sliding plate (402) is slidably connected to the outer surface of the sealing tube (601).

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