Stable micro-channel plate heat exchanger

Abstract

The stable type micro-channel plate heat exchanger comprises a shell, a connector, a communicating opening and a heat exchange element, a circular inserting sleeve is arranged on the outer side of the connector, a fixing base is fixedly installed on the front end face of the shell, U-shaped pressing frames are fixedly installed on the two sides of the horizontal end of the fixing base, and the pressing frames abut against the front end face of the circular inserting sleeve. In the application, the two groups of lacing belt assemblies are respectively positioned below the threaded sections of the two groups of connectors, after an external pipeline is screwed with the connectors, the lacing belt assemblies can be arranged on the outer side of the external pipeline, then the narrow sections penetrate through the through grooves, and the lacing belt is tightened until the son tape is bonded with the mother tape; at the moment, the tightening belt assembly is kept in a straightened state and stably connected to the outer surface wall of the external pipeline in a wound mode, so that axial deviation of the external pipeline can be limited, loosening of the connecting position of the external pipeline and the connector is avoided, and the using stability of the micro-channel plate heat exchanger is improved.

Description

Technical Field

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

[0002] Microchannel plate heat exchangers are a new type of compact heat exchanger made by chemically etching thin plates into heat transfer elements with various flow channel shapes. These elements are then connected using diffusion bonding at high temperatures to form solid metal heat transfer elements. They offer high-temperature and high-pressure resistance, a high power-to-weight ratio, a large heat transfer area per unit volume, and high heat transfer efficiency.

[0003] Chinese patent publication number CN117685802B, published on April 9, 2024, discloses a plate heat exchanger that is easy to assemble, including a front plate and a rear plate, the front plate and the rear plate being connected by an upper guide rod and a lower guide rod, a movable end plate being slidably installed between the upper guide rod and the lower guide rod, a plate being installed between the front plate and the movable end plate, and also including a telescopic plate.

[0004] The connection between the connector and the shell of the above-mentioned existing microchannel plate heat exchanger is welded. Although this method can ensure the stability of the joint, the connection between the connector and the shell is affected by high temperature during the actual implementation, resulting in low structural strength of the connection. Over time, the connection is prone to damage or even breakage due to rust. Moreover, due to the irreversibility of the welding operation, once the connection or connector is damaged, the entire shell often needs to be replaced, thereby reducing the use effect of the microchannel plate heat exchanger. Therefore, it is urgent to propose a corresponding stable microchannel plate heat exchanger to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to propose a stable microchannel plate heat exchanger in order to solve the above problems.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A stable microchannel plate heat exchanger comprises a shell, a connector, a connecting port and a heat exchange element, a circular socket is provided on the outside of the connector, a fixing seat is fixedly installed on the front end surface of the shell, U-shaped pressure frames are fixedly installed on both sides of the horizontal end of the fixing seat, the pressure frame abuts against the front end surface of the circular socket, and a constraint component for axial constraint of the connector is provided between the pressure frame and the socket, a front seat is fixedly installed on the side of the fixing seat, and a tightening belt component for maintaining the stable connection between the connector and the external pipeline is provided on the side of the front seat.

[0008] Preferably, the connector includes a smooth section and a threaded section, the circular sleeve is sleeved on the outside of the smooth section of the connector, the sleeve is combined with the front end face of the shell through a coupling groove, and a sealing ring is fixedly installed in the coupling groove, and the sealing ring is sleeved on the outside of the smooth section.

[0009] Preferably, a fixed bin is fixedly installed on the top of the fixed seat, an outer cover is provided above the communicating port, the outer cover and the fixed bin are fixedly connected via a communicating pipe, a micro exhaust fan is fixedly installed on the bottom of the fixed bin, the output end of the micro exhaust fan is communicated with the inner cavity of the fixed bin, and a collecting portion for concentrating impurities is provided on the inner surface wall of the fixed bin.

[0010] Preferably, the collecting portion includes a storage drawer, which is hollowed out, and the bottom and inner side wall of the fixed bin are fixedly mounted with card blocks, respectively, and the storage drawer is inserted between the two groups of card blocks.

[0011] Preferably, the fixing seat is fixedly connected to the front end face of the shell through a locking rod, and the fixing seat is fixedly connected to the outer surface of the shell through the locking rod. A countersunk groove is provided on the fixing seat, and the countersunk groove corresponds to the locking rod. A rubber pad is provided in the countersunk groove, and the rubber pad abuts against the locking rod.

[0012] Preferably, the restraint assembly includes a protruding rod, which is fixedly connected to the sleeve; a through-hole is provided on the U-shaped pressing frame, and the protruding rod corresponds to the through-hole.

[0013] Preferably, the tightening belt assembly includes a wide section and a narrow section, the wide section and the narrow section are integrally formed, a through groove with the same width as the narrow section is opened inside the wide section, and a connecting part for combining the wide section and the narrow section is provided between the wide section and the narrow section, the connecting part includes a mother patch and a child patch, the mother patch is fixedly connected to the upper surface of the narrow section, and the child patch is fixedly connected to the lower surface of the wide section.

[0014] Preferably, the top of the fixed bin is fixedly connected to a horizontal frame through a vertical frame, a rotating part is fixedly connected to the horizontal frame, a transmission rod is fixedly installed on the output end of the rotating part, a screw sleeve is screwed on the outer wall of the transmission rod, a movable frame is fixedly connected to the outer wall of the screw sleeve, and bristles are fixedly installed on the bottom of the movable frame.

[0015] Preferably, the pressing frame and the fixing seat are integrally formed.

[0016] Preferably, the steps include:

[0017] S1. Fix the socket to the smooth section of the connector, align the through-hole on the press frame with the protruding rod on the socket, and then plug the connector into the front face of the housing. At this point, the socket engages with the coupling groove on the housing.

[0018] S2. The fixing base and the housing are connected by the locking rod. At this time, the vertical end of the plug-in sleeve is in contact with the front end of the housing, while the horizontal end of the plug-in sleeve squeezes the sealing ring. The cooperation between the protruding rod and the perforation limits the axial deviation of the connector.

[0019] S3. After screwing the external pipe and the connector together, place the tightening belt assembly on the outside of the external pipe. Then, pass the narrow section through the slot and tighten the tightening belt assembly until the sub-strip and the main strip are bonded. At this time, the tightening belt assembly remains straight and stably wrapped around the outer wall of the external pipe.

[0020] S4. When the micro exhaust fan is working, reverse airflow will be generated inside the fixed bin and the connecting pipe, generating negative pressure at the open end of the outer cover. The outer cover is erected above the connecting port. While the airflow is exchanged, the negative pressure generated will draw the flocculent impurities attached to the outside of the connecting port into the storage drawer.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0022] 1. In this application, the socket is fixed to the smooth section of the connector, the through-hole on the pressure frame is combined with the protruding rod on the socket, and then the connector is plugged into the front end face of the shell. At this time, the socket is combined with the coupling groove on the shell, and the fixing seat is fixed by the locking rod. At this time, the vertical end of the socket is in contact with the front end face of the shell, and the horizontal end of the socket squeezes the sealing ring. The protruding rod and the through-hole limit the axial deviation of the connector, thereby realizing the installation of the connector and the shell, replacing the traditional welding method, ensuring the structural strength of the connection between the connector and the shell, and at the same time, when the connector is damaged later, it can be repaired by unscrewing the locking rod. The connector can be quickly disassembled and assembled, and the connector can be replaced independently. At the same time, after the fixing seat is connected to the shell, the two sets of tightening belt assemblies are respectively located under the threaded sections of the two sets of connectors. After the external pipe and the connector are screwed together, the tightening belt assembly can be placed on the outside of the external pipe, and then the narrow section is passed through the groove to tighten the tightening belt until the sub-strip and the mother-strip are bonded. At this time, the tightening belt assembly remains straight and is stably wrapped around the outer wall of the external pipe, thereby limiting the axial deviation of the external pipe and avoiding loosening of the connection between it and the connector, thereby improving the stability of the microchannel plate heat exchanger.

[0023] 2. In the present application, when the micro exhaust fan is working, reverse airflow will be generated inside the fixed bin and the communicating pipe, thereby generating negative pressure at the open end of the outer cover. The outer cover is erected above the communicating port, and does not hinder the exchange of airflow. At the same time, the generated negative pressure can extract the flocculent impurities attached to the outside of the communicating port into the storage drawer, avoiding the accumulation of flocculent impurities causing blockage of the communicating port. The storage drawer can be taken out later for centralized treatment of impurities, ensuring the convenience of impurity cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It shows a schematic diagram of the overall structure provided by an embodiment of the present invention;

[0025] Figure 2 It shows a schematic diagram of the structure of the coupling groove provided according to an embodiment of the present invention;

[0026] Figure 3 A schematic diagram of the structure of a convex rod provided in an embodiment of the present invention is shown;

[0027] Figure 4 A schematic structural diagram of a tightening belt assembly according to an embodiment of the present invention is shown;

[0028] Figure 5 A schematic diagram of the fixed bin structure provided in an embodiment of the present invention is shown;

[0029] Figure 6 A schematic structural diagram of a microchannel plate heat exchanger in the prior art provided by an embodiment of the present invention is shown;

[0030] Figure 7 A schematic structural diagram of a mobile rack provided according to an embodiment of the present invention is shown.

[0031] Legend:

[0032] 1. Shell; 2. Connector; 3. Communication port; 4. Outer cover; 5. Communication duct; 6. Fixed compartment; 7. Front seat; 8. Tightening belt assembly; 801. Wide section; 802. Narrow section; 9. Combination groove; 10. Sealing ring; 11. Insert sleeve; 12. Press frame; 13. Fixed seat; 14. Protruding rod; 15. Perforation; 16. Locking rod; 17. Rubber pad; 18. Perforation; 19. Mother sticker; 20. Child sticker; 21. Micro exhaust fan; 22. Storage drawer; 23. Vertical frame; 24. Horizontal frame; 25. Rotating part; 26. Transmission rod; 27. Screw sleeve; 28. Moving frame; 29. Bristles. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] See also Figure 1-7 , the present invention provides a technical solution:

[0035] A stable microchannel plate heat exchanger includes a shell 1, a connector 2, a communication port 3, and a heat exchange element. A circular socket 11 is provided on the outside of the connector 2 for connection. A fixing seat 13 is fixedly installed on the front end face of the shell 1. U-shaped pressure frames 12 are fixedly installed on both sides of the horizontal end of the fixing seat 13. The pressure frame 12 abuts against the front end face of the circular socket 11, and a restraining assembly for axial restraint of the connector 2 is provided between the pressure frame 12 and the socket 11. A front seat 7 is fixedly installed on the side of the fixing seat 13. A tightening belt assembly 8 is provided on the side of the front seat 7 for maintaining a stable connection between the connector 2 and the external pipeline.

[0036] A method for using a stable microchannel plate heat exchanger comprises the following steps:

[0037] S1. Fix the socket 11 to the smooth section of the connector 2, engage the through-hole 15 on the pressing frame 12 with the protruding rod 14 on the socket 11, and then plug the connector 2 into the front face of the housing 1. At this time, the socket 11 engages with the coupling groove 9 on the housing 1;

[0038] S2. The fixing base 13 is connected to the housing 1 by means of the locking rod 16. At this time, the vertical end of the socket 11 is in contact with the front end surface of the housing 1, while the horizontal end of the socket 11 squeezes the sealing ring 10. The cooperation between the protruding rod 14 and the through hole 15 limits the axial deviation of the connector 2.

[0039] S3. After screwing the external pipe and the connector 2 together, place the tightening belt assembly 8 on the outside of the external pipe. Then, pass the narrow section 802 through the through slot 18 and tighten the tightening belt assembly 8 until the sub-strip 20 and the main strip 19 are bonded. At this time, the tightening belt assembly 8 remains stretched and stably wrapped around the outer wall of the external pipe.

[0040] S4. When the micro exhaust fan 21 is working, reverse airflow will be generated inside the fixed bin 6 and the communicating pipe 5, generating negative pressure at the open end of the outer cover 4. The outer cover 4 is mounted above the communicating port 3. While the airflow is exchanging, the generated negative pressure will draw the flocculent impurities attached to the outside of the communicating port 3 into the storage drawer 22.

[0041] The socket 11 is fixed to the smooth section of the connector 2, and the through-hole 15 on the press frame 12 is combined with the protruding rod 14 on the socket 11. Then, the connector 2 is plugged into the front end face of the housing 1. At this time, the socket 11 is combined with the coupling groove 9 on the housing 1. The connection between the fixing seat 13 and the housing 1 is completed by the locking rod 16. At this time, the vertical end of the socket 11 is fitted with the front end face of the housing 1, and the horizontal end of the socket 11 squeezes the sealing ring 10. The cooperation of the protruding rod 14 and the through-hole 15 limits the axial deviation of the connector 2, thereby realizing the installation of the connector 2 and the housing 1, replacing the traditional welding method, ensuring the structural strength of the connection between the connector 2 and the housing 1, and subsequently when the connector 2 is damaged, it can be repaired by The locking rod 16 is unscrewed to realize the quick disassembly and assembly of the connector 2, so that the connector 2 can be replaced independently. At the same time, after the fixing seat 13 is connected to the shell 1, the two sets of tightening belt assemblies 8 are respectively located under the threaded sections of the two sets of connectors 2. After the external pipe and the connector 2 are screwed together, the tightening belt assembly 8 can be placed on the outside of the external pipe, and then the narrow section 802 passes through the groove 18 to tighten the tightening belt assembly 8 until the sub-sticker 20 is bonded to the mother sticker 19. At this time, the tightening belt assembly 8 remains straight and is stably wrapped around the outer wall of the external pipe, thereby limiting the axial deviation of the external pipe and avoiding loosening of the connection between it and the connector 2, thereby improving the stability of the microchannel plate heat exchanger.

[0042] Specifically, such as Figure 1 and Figure 5 As shown, a fixed bin 6 is fixedly installed on the top of the fixed seat 13, and an outer cover 4 is provided above the communicating port 3. The outer cover 4 and the fixed bin 6 are fixedly connected by a communicating pipe 5. A micro exhaust fan 21 is fixedly installed on the bottom of the fixed bin 6. The output end of the micro exhaust fan 21 is communicated with the inner cavity of the fixed bin 6, and the inner surface wall of the fixed bin 6 is provided with a collecting part for concentrating impurities. When the micro exhaust fan 21 is working, a reverse airflow will be generated inside the fixed bin 6 and the communicating pipe 5, thereby generating a negative pressure at the open end of the outer cover 4. The outer cover 4 is erected above the communicating port 3 and does not hinder the exchange of airflow. At the same time, the negative pressure generated can draw the flocculent impurities attached to the outside of the communicating port 3 into the storage drawer 22, avoiding the accumulation of flocculent impurities causing blockage of the communicating port 3. The storage drawer 22 can be taken out later for centralized treatment of impurities, thereby ensuring the convenience of impurity cleaning.

[0043] Specifically, such as Figure 2 and Figure 5As shown, the collecting portion includes a storage drawer 22, which is hollowed out to achieve the concentration of impurities without hindering the conduction of airflow. Blocks are fixedly installed on the bottom of the fixed bin 6 and the inner wall of the vertical end respectively. The storage drawer 22 is inserted between the two sets of blocks, thereby ensuring the stability of the storage drawer 22 and subsequent convenience. The fixing seat 13 is fixedly connected to the front end face of the shell 1 through the locking rod 16. The inner wall of the front end face of the fixing seat 13 is interference-fitted with a rubber pad 17. The rear end face of the rubber pad 17 abuts against the locking rod 16. The rubber pad 17 will fit tightly against the head of the locking rod 16, thereby providing a restraining force for the locking rod 16 to prevent the locking rod 16 from loosening itself.

[0044] Specifically, such as Figure 2 and Figure 3 As shown, the pressing frame 12 is a U-shaped structure, and the pressing frame 12 and the fixing seat 13 are integrally formed, which ensures the structural strength of the pressing frame 12 and the fixing seat 13, as well as the restraining effect on the sleeve 11. The restraining component includes two groups of protruding rods 14, and the two groups of protruding rods 14 are fixedly connected to the front end surface of the sleeve 11 and are vertically distributed. The two groups of protruding rods 14 are respectively inserted into the horizontal end of the pressing frame 12 through two groups of through holes 15, so as to limit the axial deviation of the connector 2.

[0045] Specifically, such as Figure 2 and Figure 4 As shown, the tightening belt assembly 8 includes a wide section 801 and a narrow section 802, and the wide section 801 and the narrow section 802 are integrally formed. A through groove 18 with the same width as the narrow section 802 is opened inside the wide section 801, and a connecting part for combining the wide section 801 and the narrow section 802 is provided between the wide section 801 and the narrow section 802. The connecting part includes a mother patch 19 and a child patch 20. The mother patch 19 is fixedly connected to the top of the narrow section 802, and the child patch 20 is fixedly connected to the bottom of the wide section 801. The two groups of tightening belt assemblies 8 are respectively located under the threaded sections of the two groups of connectors 2. After the external pipe and the connector 2 are screwed together, the tightening belt assembly 8 can be placed on the outside of the external pipe, and then the narrow section 802 passes through the through groove 18, and the tightening belt assembly 8 is tightened until the child patch 20 is bonded to the mother patch 19. At this time, the tightening belt assembly 8 remains in a straight state and is stably wrapped around the outer wall of the external pipe, thereby limiting the axial deviation of the external pipe.

[0046] Specifically, such as Figure 1 and Figure 7As shown, the top of the fixed bin 6 is fixedly connected to a horizontal frame 24 through a vertical frame 23, and the outer wall of the horizontal frame 24 is fixedly connected to a rotating member 25. The output end of the rotating member 25 is fixedly installed with a transmission rod 26, and the outer wall of the transmission rod 26 is screwed with a screw sleeve 27. The outer wall of the screw sleeve 27 is fixedly connected to a movable frame 28, and a brush 29 is fixedly installed at the bottom. When the micro-exhaust fan 21 is working, the rotating member 25 will drive the transmission rod 26 to rotate back and forth, that is, the movable frame 28 will drive the brush 29 to reciprocate on the outer wall of the connecting port 3, thereby promoting the rapid separation of impurities and ensuring the cleaning effect of the connecting port 3;

[0047] It should be noted that: the top of the screw sleeve 27 here is fixedly connected with a T-block, and the T-block is slidably connected to the bottom of the cross frame 24 through a corresponding sliding groove, thereby ensuring the stable movement of the screw sleeve 27.

[0048] The screw thread 14 on the front of the housing 1 is screwed in and the screw thread 15 on the front of the housing 1 is screwed in and the screw thread 16 on the front of the housing 1 is screwed in and the screw thread 15 on the front of the housing 1 is screwed in and the screw thread 15 on the front of the housing 1 is screwed in and the screw thread 15 on the front of the housing 1 is screwed in and the screw thread 15 on the front of the housing 1 is screwed in and the screw thread 15 on the front of the housing 1 is screwed in and the screw thread 15 on the front of the housing 1 is screwed in and the screw thread 15 on the front of the housing 1 is screwed in and the screw thread 15 on the front of the housing 1 is screwed in and the screw thread 15 on the front of the housing 1 is screwed in and the screw thread 15 on the front of the housing 1 is screwed in and the screw thread 1 After the external pipe and the connector 2 are screwed together, the tightening belt assembly 8 can be placed on the outside of the external pipe, and then the narrow section 802 passes through the groove 18, and the tightening belt assembly 8 is tightened until the sub-strip 20 is bonded to the mother sticker 19. At this time, the tightening belt assembly 8 remains in a straight state and is stably wrapped around the outer wall of the external pipe, thereby limiting the axial deviation of the external pipe and preventing it from loosening at the connection with the connector 2, thereby improving the stability of the microchannel plate heat exchanger. When the micro exhaust fan 21 is working, the fixed bin 6 and the connecting pipe 5 will generate reverse airflow, thereby generating negative pressure at the open end of the outer cover 4. The outer cover 4 is mounted above the connecting port 3, and while not hindering the exchange of airflow, the negative pressure generated can draw flocculent impurities attached to the outside of the connecting port 3 into the storage drawer 22, avoiding the accumulation of flocculent impurities causing blockage of the connecting port 3. The storage drawer 22 can be taken out later for centralized treatment of impurities, ensuring the convenience of impurity cleaning.

[0049] The above description of the embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A stable microchannel plate heat exchanger, comprising a shell (1), a connector (2), a communication port (3) and a heat exchange element, characterized in that: A circular socket (11) is provided on the outside of the connector (2) (connection relationship), a fixing seat (13) is fixedly installed on the front end face of the shell (1), and a U-shaped pressing frame (12) is fixedly installed on both sides of the horizontal end of the fixing seat (13), the pressing frame (12) abuts against the front end face of the circular socket (11), and a restraining component for axial restraint of the connector (2) is provided between the pressing frame (12) and the socket (11), a front seat (7) is fixedly installed on the side face of the fixing seat (13), and a tightening belt component (8) for maintaining the stable connection between the connector (2) and the external pipe is provided on the side face of the front seat (7).

2. A stable microchannel plate heat exchanger according to claim 1, characterized in that: The connector (2) comprises a smooth section and a threaded section, the circular sleeve (11) is sleeved on the outside of the smooth section of the connector, the sleeve (11) is combined with the front end surface of the housing (1) through a coupling groove (9), and a sealing ring (10) is fixedly installed in the coupling groove (9), and the sealing ring is sleeved on the outside of the smooth section.

3. The stable microchannel plate heat exchanger according to claim 2, characterized in that: A fixed bin (6) is fixedly mounted on the top of the fixed seat (13); an outer cover (4) is provided above the communication port (3); the outer cover (4) and the fixed bin (6) are fixedly connected via a communication pipe (5); a micro exhaust fan (21) is fixedly mounted on the bottom of the fixed bin (6); an output end of the micro exhaust fan (21) is in communication with the inner cavity of the fixed bin (6); and a collecting portion for collecting impurities is provided on the inner surface wall of the fixed bin (6).

4. The stable microchannel plate heat exchanger according to claim 3, characterized in that: The collecting portion comprises a storage drawer (22), the storage drawer (22) is hollowed out, and the bottom and inner side wall of the fixed bin (6) are respectively fixedly mounted with card blocks, and the storage drawer (22) is plugged between two groups of card blocks.

5. The stable microchannel plate heat exchanger according to claim 4, characterized in that: The fixing seat (13) is fixedly connected to the outer surface of the housing (1) via a locking rod (16); a countersunk groove is provided on the fixing seat (13), the countersunk groove corresponds to the locking rod; a rubber pad (17) is provided in the countersunk groove, and the rubber pad (17) abuts against the locking rod (16).

6. The stable microchannel plate heat exchanger according to claim 5, characterized in that: The restraining assembly comprises a protruding rod (14), the protruding rod (14) is fixedly connected to the inserting sleeve (11), and a through hole is provided on the U-shaped pressing frame, and the protruding rod corresponds to the through hole.

7. The stable microchannel plate heat exchanger according to claim 6, characterized in that: The tightening belt assembly (8) includes a wide section (801) and a narrow section (802), the wide section (801) and the narrow section (802) are integrally formed, a through slot (18) having the same width as the narrow section (802) is provided inside the wide section (801), and a connecting portion for connecting the wide section (801) and the narrow section (802) is provided between the wide section (801) and the narrow section (802), the connecting portion includes a mother patch (19) and a child patch (20), the mother patch (19) is fixedly connected to the upper surface of the narrow section (802), and the child patch (20) is fixedly connected to the lower surface of the wide section (801).

8. The stable microchannel plate heat exchanger according to claim 7, characterized in that: The top of the fixed bin (6) is fixedly connected to a horizontal frame (24) through a vertical frame (23); a rotating member (25) is fixedly connected to the horizontal frame (24); a transmission rod (26) is fixedly installed on the output end of the rotating member (25); a screw sleeve (27) is screwed on the outer wall of the transmission rod (26); a movable frame (28) is fixedly connected to the outer wall of the screw sleeve (27); and a brush (29) is fixedly installed on the bottom of the movable frame (28).

9. The stable microchannel plate heat exchanger according to claim 8, characterized in that: The pressing frame (12) and the fixing seat (13) are integrally formed.

10. A method for using a stable microchannel plate heat exchanger, based on the stable microchannel plate heat exchanger according to claim 1, characterized in that: The following steps are involved: S1, the plug sleeve (11) is fixed to the smooth section of the connector (2), the through hole (15) on the pressing frame (12) is combined with the protruding rod (14) on the plug sleeve (11), and then the connector (2) is plugged into the front end surface of the housing (1), at which time the plug sleeve (11) is combined with the coupling groove (9) on the housing (1); S2. The fixing seat (13) and the housing (1) are connected by the locking rod (16). At this time, the vertical end of the plug sleeve (11) is in contact with the front end surface of the housing (1), and the horizontal end of the plug sleeve (11) squeezes the sealing ring (10). The cooperation between the protruding rod (14) and the through hole (15) limits the axial deviation of the connector (2); S3. After the external pipe is screwed together with the connector (2), the tightening belt assembly (8) is placed on the outside of the external pipe, and then the narrow section (802) passes through the groove (18), and the tightening belt assembly (8) is tightened until the sub-strip (20) and the main strip (19) are bonded. At this time, the tightening belt assembly (8) remains in a straight state and is stably wrapped around the outer wall of the external pipe; S4. When the micro exhaust fan (21) is in operation, reverse airflow is generated inside the fixed bin (6) and the communicating pipe (5), generating negative pressure at the open end of the outer cover (4). The outer cover (4) is mounted above the communicating port (3). While the airflow is being exchanged, the generated negative pressure draws flocculent impurities attached to the outside of the communicating port (3) into the storage drawer (22).

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