Energy-saving aluminum plate-fin heat exchanger with safety device

Abstract

The invention discloses an energy-saving aluminum plate-fin heat exchanger with a safety device, and belongs to the technical field of safety devices of plate-fin heat exchangers. Comprising a plate-fin heat exchanger assembly frame, hot fluid channel cavities and cold fluid channel cavities, the hot fluid channel cavities and the cold fluid channel cavities are alternately assembled on the plate-fin heat exchanger assembly frame, isolation sealing covers are arranged in the hot fluid channel cavities and the cold fluid channel cavities, and a plurality of corrugated heat transfer plates are fixedly mounted in the isolation sealing covers; by means of the built-in movable safety detection mechanism, the problem that scaling on the inner walls of fins of an aluminum plate-fin heat exchanger is difficult to monitor in real time under the working condition of fluid containing impurities can be effectively solved. A dual conversion mechanism of mechanical displacement and light distance offset is utilized, the detection unit is driven by the hydraulic drive module to move in gaps of the corrugated heat transfer plates, dynamic feedback of the scaling thickness and position is achieved, and early warning can be conducted in the early stage of scaling layer thickening.

Description

Technical Field

[0001] The present invention relates to the technical field of safety devices for plate-fin heat exchangers, and more particularly to an energy-saving aluminum plate-fin heat exchanger with a built-in safety device. Background Art

[0002] Energy-saving aluminum plate-fin heat exchangers are key equipment for industrial heat transfer. They utilize corrugated fins between layers of alternating aluminum baffles to create independent, parallel flow channels, enabling efficient indirect heat exchange between hot and cold fluids. By allowing the hot and cold fluids to flow in opposite directions through adjacent channels, aluminum's excellent thermal conductivity expands the surface area, ensuring efficient heat transfer while significantly reducing energy consumption and equipment size. They are widely used in the chemical industry and other fields for energy recovery and process temperature control.

[0003] When handling impure fluids, existing technologies tend to use plate-fin heat exchangers with larger fin spacing to reduce the risk of clogging. However, this increased fin cavity allows solid particles in the medium to settle, forming scale. This is particularly prone to scale accumulation in the baffle area where hot and cold channels alternate. When a high-temperature fluid channel on one side transfers heat to an adjacent low-temperature fluid channel through a common metal baffle, the significant temperature difference easily causes scale to crystallize within the cavity near the inner surface of the fins.

[0004] As the scale layer on the inner wall of the fin continues to thicken, it not only reduces the effective cross-sectional area of ​​the flow channel, but also causes local overheating, which may lead to creep cracking of the aluminum material, resulting in safety accidents such as medium leakage and pressure loss. Most existing solutions use external pressure detection modules, which can only detect internal conditions from a macro perspective and cannot determine the scale condition on the inner wall of the fin. This makes it difficult to prevent safety accidents in a timely manner during the scale layer formation process. Summary of the Invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide an energy-saving aluminum plate-fin heat exchanger with a built-in safety device, aiming to solve the above technical problems.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] An energy-saving aluminum plate-fin heat exchanger with a built-in safety device comprises a plate-fin heat exchanger assembly frame, a hot fluid channel cavity, and a cold fluid channel cavity. The hot fluid channel cavity and the cold fluid channel cavity are alternately assembled on the plate-fin heat exchanger assembly frame and are each provided with an isolation sealing cover, and a plurality of corrugated heat transfer plates are fixedly installed inside the isolation sealing cover. Among them, one side of the hot fluid channel cavity is equipped with two conduit interfaces, one above and one below, which are connected to the isolation sealing cover to circulate out the hot liquid. The other side is equipped with two conduit interfaces, one above and one below, which are connected to the outside of the isolation sealing cover and penetrate into the conduit interface inside the isolation sealing cover in the close-fitting cold fluid channel cavity to circulate out the cold liquid. Each conduit interface located at the outside of the isolation sealing cover is equipped with a liquid drive module. The outer wall of the liquid drive module is provided with a tilt adjustment module attached to the outside of the isolation sealing cover. The interior of the isolation sealing cover is provided with a safety detection mechanism corresponding to the magnetic attraction of the tilt adjustment module. The safety detection mechanism includes a detection unit, which includes a second reset airbag for filling with gas to expand and deploy, and a plurality of contact units arranged on the outside of the second reset airbag. The liquid drive module is controlled by the flowing liquid to drive the inclination adjustment module to adsorb the safety detection mechanism and move back and forth on the corrugated heat transfer plate to detect the dirt inside the component in real time.

[0008] As a further solution of the present invention: the safety detection mechanism includes an arc-shaped side plate and an arc-shaped cavity block, the arc-shaped side plate and the arc-shaped cavity block form a U-shaped structure sliding sleeve inside the isolation sealing cover, the interior of the arc-shaped cavity block is provided with two groups of independent cavities to store gas and cleaning reagents respectively, a U-shaped turning plate is movably installed on the inner wall of the arc-shaped side plate, the surface of the arc-shaped side plate is provided with an arc-shaped flip groove, and the sixth electric-controlled magnetic block sliding sleeve in the flip groove is fixedly installed on both side ends of the U-shaped turning plate, the movable axis of the U-shaped turning plate coincides with the arc center of the flip groove, and the U-shaped turning plate can be rotated 90 degrees along the flip groove through the movable axis.

[0009] As a further solution of the present invention: a plurality of self-expanding detection modules are fixedly installed on the open end of the U-shaped rotating plate in sequence, and each self-expanding detection module is stuck in the gap between the two corrugated heat transfer plates, the self-expanding detection module includes a cylindrical cavity, a cavity rod is fixedly installed inside the cylindrical cavity, a slider is slidably sleeved on the outer surface of the cavity rod, and the upper side of the slider is exposed to the outside of the cylindrical cavity, the first high-toughness reset spring is fixedly installed at the position on both sides of the slider inside the cylindrical cavity, the slider is located at the midpoint of the outer surface of the cavity rod under the elastic action of the first high-toughness reset springs on both sides, and the end of the slider exposed to the outside of the cylindrical cavity is fixedly installed with a mouth-shaped bracket.

[0010] As a further solution of the present invention: the outer edge of the mouth-shaped bracket is a notch structure, and two groups of symmetrically fitted mouth-shaped delivery cavities are fixedly installed in the notch structure, wherein the outer surface of one side of the mouth-shaped delivery cavity is provided with a cleaning unit, and the outer surface of the other side of the mouth-shaped delivery cavity is provided with a detection unit, and two external hoses are fixedly connected to the position of each cylindrical cavity on the outside of the arc-shaped cavity block to respectively deliver gas and cleaning reagents, and the protruding ends of the external hoses are connected to the cavity rod, and the interior of the cavity rod is fixedly provided with two delivery conduits respectively connected to the external hoses, and reserved cavity openings are opened at the midpoint of the cavity rod and at the upper side of the slider, and the delivery conduit passes through the reserved cavity openings into the mouth-shaped bracket.

[0011] As a further solution of the present invention: the sealed cavity isolated by the isolation sealing cover in the hot fluid channel cavity is for filling with hot liquid, and the sealed cavity isolated by the isolation sealing cover in the cold fluid channel cavity is for filling with cold liquid; the delivery conduit for conveying gas in the cavity rod is respectively connected to the cleaning unit and the detection unit through the reserved cavity opening, while the delivery conduit for conveying cleaning reagent in the cavity rod is only connected to the cleaning unit through the reserved cavity opening, and the end connected to the cleaning unit is a branch joint, and a plurality of connecting ports are arranged in sequence on the outer surface of the mouth-shaped delivery cavity, and the fifth electric-controlled magnetic suction block is fixedly installed at the position where the outer side wall of the arc-shaped side plate is in contact with the isolation sealing cover.

[0012] As a further solution of the present invention: the detection unit includes a mouth-shaped frame fixedly mounted on the outer surface of the mouth-shaped conveying cavity, a second reset airbag is installed inside the mouth-shaped frame, a plurality of second connection tubes are fixedly mounted on one side of the second reset airbag that is in contact with the bottom of the mouth-shaped frame, a second conduit slot corresponding to the second connection tube is opened on the side wall of the mouth-shaped frame for the second connection tube to pass through, and the second connection tube that passes through is connected to the connecting port on the same side of the mouth-shaped conveying cavity, a plurality of third card slots are opened on the inner wall of the mouth-shaped frame, a second convex buckle top plate is fixedly mounted on the outer surface of the second reset airbag, the side wall of the second convex buckle top plate is provided with a convex block embedded in each third card slot in sequence, and a plurality of contact units are arranged on the outer surface of the second convex buckle top plate, and a telescopic opening for the contact unit to pass through is opened on the outer surface of the mouth-shaped frame.

[0013] As a further solution of the present invention: the contact unit includes a sealing cover tube, a fourth slot is provided on the inner wall of the sealing cover tube, and a circular sleeve is slidably installed inside the sealing cover tube through the fourth slot, a second high-toughness reset spring is fixedly installed on the bottom surface of the circular sleeve, and the circular sleeve is pushed against the inner top of the sealing cover tube under the elastic force of the second high-toughness reset spring, a detection cylinder is fixedly installed at the inner center position of the sealing cover tube, the center of the circular sleeve is sleeved on the inside of the detection cylinder, and an infrared detection head is fixedly installed on the center of the circular sleeve, the output end of the infrared detection head faces the inner bottom of the sealing cover tube, and an extension rod passing through the sealing cover tube is fixedly installed at the position of the center of the circular sleeve relative to the infrared detection head, and a ball sleeve is fixedly installed on the protruding end of the extension rod.

[0014] As a further solution of the present invention: the cleaning unit includes a U-shaped frame fixedly mounted on the outer surface of the mouth-shaped conveying cavity, a first reset airbag is installed inside the U-shaped frame, a plurality of first connection tubes are fixedly mounted on one side of the first reset airbag that is in contact with the bottom of the U-shaped frame, a plurality of first conduit slots for the first connection tubes to pass through are opened on the side wall of the U-shaped frame, and the first connection tubes that pass through are connected to and correspond to the communication ports on the mouth-shaped conveying cavity on the same side, a plurality of second card slots are opened in sequence on the inner wall of the U-shaped frame, and the first reset airbag is fixedly mounted on one side of the U-shaped frame. A first convex buckle top plate is fixedly installed on the top of the airbag, and the convex buckles of the first convex buckle top plate are embedded in the second card slots one by one. A cavity scraper is fixedly installed on the upper surface of the first convex buckle top plate. The delivery conduit for delivering the cleaning reagent in the cavity rod is respectively connected to each first connecting tube through a branch joint, and is connected to the inside of the cavity scraper. A circular opening is opened at the position of the delivery conduit branch joint on the top of the cavity scraper to spray out the cleaning reagent, and a scraper plate close to both sides of the cavity scraper is fixedly installed on the top of the U-shaped frame.

[0015] As a further solution of the present invention: the liquid drive module includes an outer air guide cover, a round-headed cavity sleeve is fixedly installed at the internal axial center position of the outer air guide cover, a gap cavity is provided between the round-headed cavity sleeve and the outer air guide cover, and a disc rotating plate is movably installed at one side end position of the inner side of the round-headed cavity sleeve, a propeller that passes through the round-headed cavity sleeve is fixedly installed at the center position of the disc rotating plate, a reciprocating threaded rod is fixedly installed at the position of the center of the disc rotating plate on one side of the propeller, a first clamping block is meshedly installed on the outer surface of the reciprocating threaded rod, a first clamping groove is provided on the inner wall of the round-headed cavity sleeve for the first clamping block to slide and engage, a first electrically-controlled magnetic block is fixedly installed on the side wall of the first clamping block, and a second electrically-controlled magnetic block is adsorbed and installed on the outer surface of the outer air guide cover through the magnetic attraction of the first electrically-controlled magnetic block.

[0016] As a further solution of the present invention: the inclination adjustment module includes a magnetic shell fixedly mounted on the outer end of the second electrically controlled magnetic block, a servo drive motor is fixedly mounted on the side of the magnetic shell facing the isolation sealing cover, an arc-shaped cover plate is fixedly mounted on the outer surface of the servo drive motor, an arc-shaped cover plate is provided on the arc-shaped cover plate, and an arc-shaped limiting groove corresponding to the flip groove on the same side is provided, a rocking plate is fixedly mounted on the output end, a third electrically controlled magnetic block that slides and is clamped in the arc-shaped limiting groove is fixedly mounted on the protruding end of the rocking plate, the third electrically controlled magnetic block is adsorbed and corresponds to the sixth electrically controlled magnetic block across the isolation sealing cover, and a fourth electrically controlled magnetic block that is adsorbed and corresponds to the fifth electrically controlled magnetic block across the isolation sealing cover is fixedly mounted on the outer surface of the arc-shaped cover plate.

[0017] Compared with the prior art, the above technical solution provided by the present invention has at least the following beneficial effects: (1) This solution can effectively solve the problem of difficulty in real-time monitoring of scale on the inner wall of the fin of aluminum plate-fin heat exchangers under impurity-containing fluid conditions by using a built-in movable safety detection mechanism. This is different from the traditional external pressure detection in the existing technology, which can only feedback the overall flow channel pressure drop and cannot capture the early deposition of microscopic dirt in the fin gap. By utilizing the dual conversion mechanism of mechanical displacement and optical distance offset, the detection unit is driven by the liquid drive module to move in the gap between the corrugated heat transfer plates. The ball sleeve of the contact unit slides in real time against the fin surface. When the dirt particles push the ball, the optical distance offset of the infrared detection head is triggered, and the physical protrusion is converted into an electrical signal, realizing dynamic feedback of the thickness and position of the scale. It can provide early warning at the early stage of scale layer thickening, significantly reduce the risk of flow channel blockage and local overheating, and avoid cracks or leakage accidents caused by creep stress in aluminum materials.

[0018] (2) Through the effect of dirt positioning and real-time cleaning, when the detection unit identifies excessive dirt, the system can automatically switch to the cleaning mode, and the gas drives the first reset airbag to expand, pushing the cavity scraper close to the surface of the dirt layer, and spraying the stored customized cleaning reagent at the same time. Through the dual-effect synergy of chemical dissolution and mechanical scraping, the spray path and scraping angle can match the dirt position through the branch pipe of the arc-shaped cavity block, avoiding the waste of resources caused by full-area cleaning. After cleaning, it can also be re-inspected to verify the scale layer removal effect for the second time. If the residue still exceeds the threshold, the alarm system will be triggered to prompt manual intervention.

[0019] (3) Through the liquid drive module and the tilt adjustment module, under heat exchange conditions, the tilt adjustment module adsorbs the safety detection mechanism to maintain a horizontal posture, parallel to the flow channel to reduce resistance. During detection, it rotates 90 degrees and inserts vertically into the fin gap. The driving energy is completely derived from the fluid kinetic energy, without the need for external drive, achieving the coordination of the three functions of heat exchange, monitoring, and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure inside the hot fluid channel cavity and the cold fluid channel cavity of the present invention; Figure 3 It is a structural diagram of the safety detection mechanism of the present invention; Figure 4 It is a schematic diagram of the structure of a part of the safety detection mechanism of the present invention; Figure 5 This is a structural diagram of the self-deployment detection module of the present invention in a disassembled state; Figure 6 for Figure 5 Schematic diagram of the enlarged structure at A in the middle; Figure 7 It is a structural schematic diagram of the cleaning unit of the present invention; Figure 8 This is a schematic diagram of the structure of a partial portion of the first reset airbag of the present invention; Figure 9 Schematic diagram of the structure of the detection unit of the present invention; Figure 10 This is a structural schematic diagram of a half-section view of the sealing cover cylinder of the present invention; Figure 11 It is a partial structural schematic diagram of a liquid drive module of the present invention in a semi-sectioned state; Figure 12 It is a structural schematic diagram of the tilt adjustment module of the present invention.

[0022] Reference numerals 1. Plate-fin heat exchanger assembly frame; 2. Hot fluid channel cavity; 3. Cold fluid channel cavity; 4. Isolation sealing cover; 5. Corrugated heat transfer plate; 6. Conduit interface; 7. Liquid drive module; 71. Round head cavity sleeve; 72. Disc rotating plate; 73. Propeller; 74. Reciprocating threaded rod; 75. First slot; 76. First clamping block; 77. First electrically controlled magnetic block; 78. Second electrically controlled magnetic block; 79. Outer shroud; 8. Inclination adjustment module; 81. Magnetic housing; 82. Arc cover plate; 83. Rocker plate; 84. Arc limit slide; 85. Third electrically controlled magnetic block; 86. Fourth electrically controlled magnetic block; 87. Servo drive motor; 9. Safety detection mechanism; 91. Arc-shaped side panel; 92. Fifth electrically controlled magnetic block; 93. Arc-shaped cavity block; 94. U-shaped rotating plate; 95. Sixth electrically controlled magnetic block; 96. Self-deployment detection module; 961. Cylindrical cavity; 962. Cavity rod; 963. Slider; 964. First high-toughness return spring; 965. Reserved cavity opening; 966. Delivery catheter; 967. Mouth-shaped bracket; 968. Mouth-shaped delivery cavity; 969. Communication port; 97. External hose; 98. Flip trough; 10. Cleaning unit; 101. U-shaped frame; 102. First reset airbag; 103. First conduit notch; 104. First connecting tube; 105. Second clamping slot; 106. First protruding top plate; 107. Scraping plate; 108. Cavity scraping strip; 11. Detection unit; 111. Mouth-shaped frame; 112. Second reset airbag; 113. Third card slot; 114. Second convex buckle top plate; 115. Second conduit notch; 116. Second connecting pipe; 117. Telescopic opening; 12. Contact unit; 121. Sealing cover; 122. Fourth slot; 123. Circular clamping sleeve; 124. Second high-toughness return spring; 125. Detection tube; 126. Infrared detection head; 127. Extension rod; 128. Ball sleeve.

[0023] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0024] The following, combined with the accompanying drawings and specific embodiments, describes in detail an energy-saving aluminum plate-fin heat exchanger with a built-in safety device provided by the present invention. It is also noted that, for the sake of completeness, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative implementations for known technologies. Furthermore, the accompanying drawings are intended only to further illustrate the embodiments and are not intended to limit the present invention.

[0025] like Figures 1 to 12 As shown, an embodiment of the present invention provides an energy-saving aluminum plate-fin heat exchanger with a built-in safety device, comprising a plate-fin heat exchanger assembly frame 1, a hot fluid channel cavity 2, and a cold fluid channel cavity 3. The hot fluid channel cavity 2 and the cold fluid channel cavity 3 are alternately assembled on the plate-fin heat exchanger assembly frame 1, and are each provided with an isolation sealing cover 4 inside, and a plurality of corrugated heat transfer plates 5 are fixedly installed inside the isolation sealing cover 4; Among them, one side of the hot fluid channel cavity 2 is equipped with two conduit interfaces 6 that are connected to the isolation sealing cover 4 to circulate out the hot liquid, and the other side is equipped with two conduit interfaces 6 that are connected to the outside of the isolation sealing cover 4 and penetrate into the isolation sealing cover 4 in the close-fitting cold fluid channel cavity 3 to circulate out the cold liquid, and each conduit interface 6 located at the outside of the isolation sealing cover 4 is equipped with a liquid drive module 7. The outer wall of the liquid drive module 7 is provided with a tilt adjustment module 8 attached to the outside of the isolation sealing cover 4. The interior of the isolation sealing cover 4 is provided with a safety detection mechanism 9 corresponding to the magnetic attraction of the tilt adjustment module 8. The safety detection mechanism 9 includes a detection unit 11, which includes a second reset airbag 112 for being inflated with gas to expand and deploy, and a plurality of contact units 12 arranged on the outside of the second reset airbag 112. The liquid driving module 7 is controlled by the flowing liquid to drive the inclination adjustment module 8 to adsorb the safety detection mechanism 9 and move back and forth on the corrugated heat transfer plate 5 to detect the dirt inside the component in real time.

[0026] In order to solve the problem of real-time monitoring of scaling on the inner wall of the existing fins, the above technical solution is now adopted to solve it. The essence of the above technical problem is that when the aluminum plate-fin heat exchanger processes fluids containing impurities, scaling is deposited on the inner wall of the fin and the partition area due to the increase in the fin spacing, causing flow channel blockage, local overheating and aluminum cracking risks, while the external pressure monitoring can only macroscopically monitor the overall pressure changes, and cannot accurately capture the microscopic scaling state inside the fins, and it is difficult to issue an early warning at the beginning of the thickening of the scale layer. The above technical solution mainly consists of a plate-fin heat exchanger assembly frame 1, a hot fluid channel cavity 2, a cold fluid channel cavity 3, an isolation sealing cover 4, a corrugated heat transfer plate 5, a conduit interface 6, a liquid drive module 7, an inclination adjustment module 8, and a safety detection mechanism 9. The plate-fin heat exchanger assembly frame 1, the hot fluid channel cavity Both cavity 2 and cold fluid channel cavity 3 are inherent structures of conventional heat exchangers in the prior art. The isolation seal hood 4 is equivalent to the sealing strip in the prior art, used to separate the corresponding cavities for liquid passage. The configured conduit interfaces 6 are divided into four groups, arranged in pairs. One side of the hot fluid channel cavity 2 is equipped with two conduit interfaces 6, one above and one below, which connect to the isolation seal hood 4 to circulate the hot fluid. The hot fluid flows into the conduit interface 6 on the upper side of the hot fluid channel cavity 2 and flows out of the conduit interface 6 on the lower side of the hot fluid channel cavity 2. Conversely, the cold fluid flows into the conduit interface 6 on the lower side of the cold fluid channel cavity 3 and flows out of the conduit interface 6 on the upper side of the cold fluid channel cavity 3, forming the hot and cold convection state in the prior art. The configured corrugated heat transfer plates 5 are the convex strip structures used in the prior art to transfer heat within the cavity. The geometric corrugations induce turbulence, expand the surface area, and enhance rigidity, achieving safe and efficient heat exchange. This is an inherent structure in the prior art.

[0027] The configured liquid drive module 7 is installed on the conduit interface 6 at the outer position of each isolation sealing cover 4. On the one hand, it is used to use the flowing liquid for driving, thereby reducing the use of internal components. On the other hand, it is located outside the heat exchange area to avoid interfering with the normal operation of the heat exchange area. The corresponding tilt adjustment module 8 is used to absorb the safety detection mechanism 9. As an intermediate component, it not only plays a role of separating and driving, but also adjusts the tilt angle of the safety detection mechanism 9. When operating in the heat exchange area, the safety detection mechanism 9 is kept horizontal with the heat exchange cavity to reduce interference with the flowing liquid. During detection, the safety detection mechanism 9 is inserted into the gaps between the corrugated heat transfer plates 5 to detect dirt.

[0028] The configured safety detection mechanism 9 includes a detection unit 11, which is composed of a second reset airbag 112 for filling with gas to expand and unfold, and several groups of contact units 12 arranged on the outside of the second reset airbag 112. The gas is introduced into the second reset airbag 112 to expand and unfold, and the several groups of contact units 12 are squeezed out to fit in the gaps between the several corrugated heat transfer plates 5. The detection unit 11 is slid across the gaps between the several corrugated heat transfer plates 5 in a manner similar to touching to detect whether there are foreign matter or dirt in the gaps, and detects whether a safety threat is posed based on the size of the foreign matter or dirt, so as to solve the problem of real-time monitoring of scaling on the inner wall of the existing fins.

[0029] like Figures 1 to 12 As shown in the figure, the safety detection mechanism 9 includes an arc-shaped side plate 91 and an arc-shaped cavity block 93. The arc-shaped side plate 91 and the arc-shaped cavity block 93 form a U-shaped structure that slides inside the isolation sealing cover 4. The interior of the arc-shaped cavity block 93 is provided with two sets of independent cavities to store gas and cleaning reagents respectively. A U-shaped rotating plate 94 is movably installed on the inner wall of the arc-shaped side plate 91. The surface of the arc-shaped side plate 91 is provided with an arc-shaped flip groove 98. The sixth electrically controlled magnetic block 95 that slides in the flip groove 98 is fixedly installed on both side ends of the U-shaped rotating plate 94. The movable axis of the U-shaped rotating plate 94 coincides with the arc center of the flip groove 98. The U-shaped rotating plate 94 can be rotated 90 degrees along the flip groove 98 through the movable axis.

[0030] The curved side panels 91 and the curved cavity block 93 form a U-shaped structure, forming a single piece. They slide within the isolation seal 4 and adhere to the outer surfaces of the corrugated heat transfer plates 5. The curved cavity block 93 houses two independent cavities for storing gas and cleaning reagents, respectively. Each of these cavities houses corresponding pumps for controlling the delivery of these materials. The stored gas is used to subsequently inflate and deploy the corresponding airbag sleeve, while the stored cleaning reagent dissolves and cleans dirt. These pumps can be replaced based on the specific operating state of the heat exchanger to address different types of dirt, such as calcium and magnesium scale in scale. The reversing slot 98, a quarter-circular slot, acts as a guide rail, enabling the sixth electrically controlled magnetic block 95 to rotate 90 degrees to switch between the horizontal and vertical positions of the safety detection mechanism 9. In the horizontal position, it conforms to the flow of the internal liquid, while in the vertical position, it is in the detection state.

[0031] like Figures 1 to 12 As shown in the figure, a plurality of self-expanding detection modules 96 are fixedly installed on the open end of the U-shaped rotating plate 94 in sequence, and each self-expanding detection module 96 is stuck in the gap between the two corrugated heat transfer plates 5, and the self-expanding detection module 96 includes a cylindrical cavity 961, and a cavity rod 962 is fixedly installed inside the cylindrical cavity 961. The outer surface of the cavity rod 962 is slidably covered with a slider 963, and the upper side of the slider 963 is exposed to the outside of the cylindrical cavity 961. The interior of the cylindrical cavity 961 is fixedly installed with a first high-toughness return spring 964 at positions on both sides of the slider 963. Under the elastic action of the first high-toughness return spring 964 on both sides, the slider 963 is located at the midpoint of the outer surface of the cavity rod 962, and the end of the slider 963 exposed to the outside of the cylindrical cavity 961 is fixedly installed with a mouth-shaped bracket 967.

[0032] Among them, the configured corrugated heat transfer plate 5 is a corrugated structure as a whole to maximize heat conduction. Because it is a corrugated structure, the self-expanding detection module 96 stuck in the gap between the two corrugated heat transfer plates 5 needs to adapt to the corrugations to always fit in the gap between the two corrugated heat transfer plates 5. Therefore, by configuring the first high-toughness return spring 964 on both sides of the slider 963, the first high-toughness return spring 964 on both sides is used to adapt to and offset the extrusion force on both sides, ensuring that the mouth-shaped bracket 967 at the end of the slider 963 always fits in the gap between the two corrugated heat transfer plates 5.

[0033] like Figures 1 to 12As shown in the figure, the outer edge of the mouth-shaped bracket 967 is a notch structure, and two groups of symmetrically fitted mouth-shaped delivery cavities 968 are fixedly installed in the notch structure, wherein the outer surface of the mouth-shaped delivery cavity 968 on one side is provided with a cleaning unit 10, and the outer surface of the mouth-shaped delivery cavity 968 on the other side is provided with a detection unit 11. Two external hoses 97 are fixedly connected to the position of each cylindrical cavity 961 on the outside of the arc-shaped cavity block 93 to respectively deliver gas and cleaning reagents, and the protruding ends of the external hoses 97 are connected to the cavity rod 962. Two delivery conduits 966 respectively connected to the external hoses 97 are fixedly installed inside the cavity rod 962. Reserved cavity openings 965 are provided at the midpoint of the cavity rod 962 and at the upper side of the slider 963. The delivery conduit 966 passes through the reserved cavity openings 965 into the mouth-shaped bracket 967.

[0034] like Figures 1 to 12 As shown in the figure, the sealed cavity isolated by the isolation sealing cover 4 in the hot fluid channel cavity 2 is for filling with hot liquid, and the sealed cavity isolated by the isolation sealing cover 4 in the cold fluid channel cavity 3 is for filling with cold liquid; the delivery conduit 966 for conveying gas in the cavity rod 962 is respectively connected to the cleaning unit 10 and the detection unit 11 through the reserved cavity opening 965, and the delivery conduit 966 for conveying cleaning reagent in the cavity rod 962 is only connected to the cleaning unit 10 through the reserved cavity opening 965, and the end connected to the cleaning unit 10 is a branch joint, and a number of connecting ports 969 are arranged in sequence on the outer surface of the mouth-shaped delivery cavity 968, and the fifth electric-controlled magnetic suction block 92 is fixedly installed at the position where the outer wall of the arc-shaped side plate 91 is in contact with the isolation sealing cover 4.

[0035] The fifth electrically controlled magnetic block 92 is an electrically controlled magnetic block structure in the prior art. The magnetic state and magnetic force of its output end can be changed as needed to attract the corresponding electrically controlled magnetic block on the outside to achieve the effect of driving through foreign objects. The corresponding electrically controlled magnetic blocks attract each other by changing the magnetic force. It is a conventional adjustable electrically controlled magnetic block in the prior art. The branch connector at one end of the cleaning unit 10 is configured to be able to separate different numbers of connector structures in the prior art to achieve the diversion effect.

[0036] like Figures 1 to 12As shown in the figure, the detection unit 11 includes a mouth-shaped frame 111 fixedly mounted on the outer surface of the mouth-shaped conveying cavity 968, and a second reset airbag 112 is installed inside the mouth-shaped frame 111. A plurality of second connection tubes 116 are fixedly mounted on one side of the second reset airbag 112 that fits the bottom of the mouth-shaped frame 111. A second conduit notch 115 corresponding to the second connection tube 116 is provided on the side wall of the mouth-shaped frame 111 for the second connection tube 116 to pass through, and the second connection tube 116 that passes through is aligned with the mouth-shaped cavity 968 on the same side. The connecting opening 969 on the conveying cavity 968 is connected and corresponds to each other, and a plurality of third card slots 113 are provided on the inner wall of the mouth-shaped frame 111. A second convex buckle top plate 114 is fixedly installed on the outer surface of the second reset airbag 112. The side wall of the second convex buckle top plate 114 is provided with a protrusion embedded in each third card slot 113 in sequence, and a plurality of contact units 12 are provided on the outer surface of the second convex buckle top plate 114. The outer surface of the mouth-shaped frame 111 is provided with a telescopic opening 117 for the contact unit 12 to pass through.

[0037] The second reset airbag 112 is an elastic airbag structure with high toughness in the prior art, which can be expanded when gas is injected and can be shrunk in real time when gas is discharged to achieve a real-time retraction state.

[0038] like Figures 1 to 12 As shown in , the contact unit 12 includes a sealing cover tube 121, and a fourth card slot 122 is opened on the inner wall of the sealing cover tube 121, and a circular clamping sleeve 123 is slidably installed inside the sealing cover tube 121 through the fourth card slot 122. A second high-toughness return spring 124 is fixedly installed on the bottom surface of the circular clamping sleeve 123. The circular clamping sleeve 123 is pushed against the inner top of the sealing cover tube 121 under the elastic force of the second high-toughness return spring 124. The inner center of the sealing cover tube 121 is located at A detection cylinder 125 is fixedly installed at the center, the center of the circular sleeve 123 is sleeved on the inside of the detection cylinder 125, and an infrared detection head 126 is fixedly installed on the center of the circular sleeve 123, the output end of the infrared detection head 126 faces the inner bottom of the sealing cover tube 121, and an extension rod 127 that passes through the sealing cover tube 121 is fixedly installed at the position of the center of the circular sleeve 123 relative to the infrared detection head 126, and a ball sleeve 128 is fixedly installed on the protruding end of the extension rod 127.

[0039] Among them, the configured infrared detection head 126 is a structure capable of emitting infrared detection light in real time in the prior art, similar to the infrared rangefinder in the prior art. It can provide real-time feedback of the infrared distance at the emission end of the infrared detection head 126. The real-time feedback characteristic of the infrared distance is used to obtain the state of the extension rod 127, that is, the contact end of the ball sleeve 128. After the second reset airbag 112 is inflated and deployed, the ball sleeve 128 will be tightly attached to the side wall of the corrugated heat transfer plate 5. Due to the characteristics of the particles, impurities and dirt particles generated on the inner wall of the cavity and the side wall of the corrugated heat transfer plate 5 are in a convex state. During the detection process, due to the sliding contact of the ball sleeve 128, when encountering a convex state, it will return to the top, causing a slight change in the infrared distance emitted by the infrared detection head 126 at the opposite end. This determines the size of the dirt encountered by the ball sleeve 128. In other words, based on the difference in infrared distance measurement, the dirt size is fed back in real time, and it is determined in real time whether the outer end is smooth and whether it poses a safety threat to the inner cavity.

[0040] Specifically, this mechanism trades displacement for distance, defining a safe range for dirt particles using mechanical boundaries. Specifically, after the second reset airbag 112 inflates, the ball sleeve 128 slides against the clean sidewall of the corrugated heat transfer plate 5. The infrared detection head 126 records the baseline distance in real time when there is no dirt. At this point, the ball does not bounce back, and the distance is stable. This distance serves as the reference baseline for the smooth surface. When the ball sleeve 128 slides to a dirt particle, or a raised point, the particle pushes back on the ball, causing the extended rod 127 to retract slightly. This retraction reduces the distance between the transmitting end of the infrared detection head 126 and the reflecting surface, causing the real-time distance measurement to change. The magnitude of this fluctuation provides real-time feedback on the state of the internal cavity. If the warning value is exceeded or reached, different alarms are issued, providing a real-time safety warning of the dirt status of the internal cavity. Essentially, the size of the dirt protrusion is fed back into the mechanical displacement, which is then fed back into the optical distance offset. This conversion transforms physical contact into a digital signal, providing a real-time safety warning.

[0041] like Figures 1 to 12As shown in, the cleaning unit 10 includes a U-shaped frame 101 fixedly mounted on the outer surface of the mouth-shaped conveying cavity 968, a first reset airbag 102 is installed inside the U-shaped frame 101, and a plurality of first connecting tubes 104 are fixedly mounted on one side of the first reset airbag 102 that fits the bottom of the U-shaped frame 101. The side wall of the U-shaped frame 101 is provided with a plurality of first conduit slots 103 for the first connecting tubes 104 to pass through, and the first connecting tubes 104 that pass through are communicated with and correspond to the connecting port 969 on the same side of the mouth-shaped conveying cavity 968, and the inner wall of the U-shaped frame 101 is provided with a plurality of second card slots 105 in sequence, and the first reset airbag A first convex buckle top plate 106 is fixedly installed on the top of 102, and the convex buckles of the first convex buckle top plate 106 are embedded in the second card slot 105 one by one. A cavity scraper 108 is fixedly installed on the upper surface of the first convex buckle top plate 106. The delivery conduit 966 for delivering the cleaning reagent in the cavity rod 962 is respectively connected to each first connecting tube 104 through a branch joint, and is connected to the inside of the cavity scraper 108. A circular opening is opened at the position of the branch joint of the delivery conduit 966 on the top of the cavity scraper 108 to spray out the cleaning reagent. The top of the U-shaped frame 101 is fixedly installed with a scraper plate 107 close to both sides of the cavity scraper 108.

[0042] like Figures 1 to 12 As shown in , the liquid drive module 7 includes an outer air guide cover 79, a round head cavity sleeve 71 is fixedly installed at the internal axial position of the outer air guide cover 79, a gap cavity exists between the round head cavity sleeve 71 and the outer air guide cover 79, and a disc rotating plate 72 is movably installed at one end position of the inner side of the round head cavity sleeve 71, a propeller 73 that passes through the round head cavity sleeve 71 is fixedly installed at the center position of the disc rotating plate 72, and a reciprocating threaded rod 74 is fixedly installed at the position of the center of the disc rotating plate 72 on one side of the propeller 73. A first clamping block 76 is meshedly installed on the outer surface of the reciprocating threaded rod 74, and a first clamping groove 75 for sliding engagement of the first clamping block 76 is opened on the inner wall of the round head cavity sleeve 71, and a first electrically controlled magnetic block 77 is fixedly installed on the side wall of the first clamping block 76. The outer surface of the outer air guide cover 79 is adsorbed and installed with a second electrically controlled magnetic block 78 through the magnetic attraction of the first electrically controlled magnetic block 77.

[0043] like Figures 1 to 12As shown in, the inclination adjustment module 8 includes a magnetic shell 81 fixedly mounted on the outer end of the second electrically controlled magnetic block 78, and a servo drive motor 87 is fixedly mounted on the side of the magnetic shell 81 facing the isolation sealing cover 4, and an arc cover plate 82 is fixedly mounted on the outer surface of the servo drive motor 87, and an arc limit slide 84 corresponding to the flip groove 98 on the same side is opened on the arc cover plate 82, and a rocking plate 83 is fixedly mounted on the output end, and a third electrically controlled magnetic block 85 that slides and is stuck in the arc limit slide 84 is fixedly mounted on the protruding end of the rocking plate 83, and the third electrically controlled magnetic block 85 is adsorbed and corresponds to the sixth electrically controlled magnetic block 95 across the isolation sealing cover 4, and a fourth electrically controlled magnetic block 86 is fixedly mounted on the outer surface of the arc cover plate 82, which adsorbs and corresponds to the fifth electrically controlled magnetic block 92 across the isolation sealing cover 4.

[0044] Among them, the specific safety detection process of the configured safety detection mechanism 9 is: First, taking the hot fluid channel cavity 2 as an example, during the working process, the cold fluid introduced through the catheter interface 6 on the outside of the cold fluid channel cavity 3 is introduced into the connected liquid drive module 7, and the liquid in the upward flow state enters the outer guide cover 79, driving the propeller 73 on the outside of the round-head cavity sleeve 71 to rotate, and the rotation of the propeller 73 is used to rotate the disc turntable 72 and the reciprocating threaded rod 74 on the outside of the disc turntable 72. The round head structure of the round-head cavity sleeve 71 is set to increase the resistance during the flow process and increase the smoothness during passage. During the rotation of the reciprocating threaded rod 74, the first engaged block 76 on the outside will be driven to move back and forth along the first slot 75, and the first electrically controlled magnetic block 77 will be controlled to adsorb the second electrically controlled magnetic block 78 on the outside to move back and forth, so as to drive the outer inclination adjustment module 8 to move back and forth along the outer guide cover 79.

[0045] Then, according to the reciprocating movement of the inclination adjustment module 8, the safety detection mechanism 9 inside the isolation sealing cover 4 is driven to reciprocate outside the corrugated heat transfer plate 5. Specifically, the fourth electrically controlled magnetic block 86 outside the magnetic shell 81 attracts the fifth electrically controlled magnetic block 92 on the arc-shaped side plate 91, driving the arc-shaped side plate 91 and the arc-shaped cavity block 93 to reciprocate. During the movement, the servo drive motor 87 controls the rocker plate 83 at the output end to rotate, so that the rocker plate 83 drives the third electrically controlled magnetic block 85 to rotate along the arc-shaped limiting groove 84, so that the third electrically controlled magnetic block 85 and the sixth electrically controlled magnetic block 95 are attracted to each other. Due to the movable installation characteristics of the U-shaped rotating plate 94, the U-shaped rotating plate 94 will rotate along the flip groove 98, so that each self-deployment detection module 96 is inserted into the middle of the interval of the corrugated heat transfer plate 5. Then, following the reciprocating movement of the inclination adjustment module 8, the self-deployment detection module 96 reciprocates between the intervals of the corrugated heat transfer plate 5.

[0046] Then, the stored gas is introduced into the delivery conduit 966 through the external hose 97 by the pump inside the arc-shaped cavity block 93, and then introduced into the mouth-shaped delivery cavity 968 on one side of the detection unit 11 through the delivery conduit 966, and is introduced into the second connection tube 116 through the configured communication port 969 to inflate and deploy the second reset airbag 112. After the second reset airbag 112 is deployed, under the limiting action of the second convex buckle top plate 114 and the third card slot 113, the second convex buckle top plate 114 extends outward, pushing the contact unit 12 out from the telescopic port 117 position, and the contact unit 12 is pushed out through the pushed-out contact. The extending rod 127 on the unit 12, that is, one end of the ball sleeve 128, is fitted into the side wall of the corrugated heat transfer plate 5 to detect the size of the dirt on the outside of the corrugated heat transfer plate 5, and to provide feedback to one end of the infrared detection head 126. During the safety detection process, the second high-toughness return spring 124 configured on the circular sleeve 123 will provide a reaction force, that is, to control the circular sleeve 123 to be pushed out along the fourth slot 122 toward the top of the sealing cover tube 121, which fits tightly into the detection end face. The set ball sleeve 128 can resist the dirt bumps for feedback, and can also roll over the bumps for subsequent detection.

[0047] Finally, when the detection unit 11 finds large particles of dirt and needs to be cleaned, the gas injected into the second reset airbag 112 is withdrawn by the pump inside the arc-shaped cavity block 93, and is again transported to the mouth-shaped delivery cavity 968 on one side of the cleaning unit 10 by the external hose 97, and is transported to the first connecting pipe 104 of the first reset airbag 102 through the connecting port 969 on the side mouth-shaped delivery cavity 968 to inflate and expand the first reset airbag 102. During the expansion of the first reset airbag 102 injected with gas, the first convex buckle top plate 106 will be driven to expand outward along the second card groove 105, so that the cavity scraper 108 will be pushed out to fit the side wall of the corrugated heat transfer plate 5 to clean the dirt on the side wall of the corrugated heat transfer plate 5. At the same time, the stored cleaning reagent is discharged by the pump inside the arc-shaped cavity block 93 and transported to the delivery conduit 966, and follows the end of the cavity scraper 108 to expand outward. The dirt is sprayed out and acts on the dirt to dissolve it. Since it has first been detected by the detection unit 11, the specific location of the dirt on the side wall of the corrugated heat transfer plate 5, that is, the protruding abnormal point, can be known under the record of the infrared detection head 126, so as to accurately spray the cleaning reagent. In this state, the detection unit 11 is retracted, and the two structures do not interfere with each other, ensuring the independence and stability of each module during operation. During the detection process of the detection unit 11, if it is found that the dirt does not need to be processed, the cleaning unit 10 will not be started for cleaning. After the cleaning unit 10 completes the cleaning, the detection unit 11 can be started again for re-inspection to detect whether the dirt has been cleaned and whether the safety threat caused by the dirt has been cleaned. If the re-inspection finds that the safety threat caused by the dirt cannot be cleaned, an alarm will be issued and the cleaning will be disassembled and cleaned to minimize downtime and manual intervention in cleaning.

[0048] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0049] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An energy-saving aluminum plate-fin heat exchanger with a built-in safety device, comprising a plate-fin heat exchanger assembly frame, a hot fluid channel cavity, and a cold fluid channel cavity, characterized in that: The hot fluid channel cavities and the cold fluid channel cavities are alternately assembled on the plate-fin heat exchanger assembly frame, and are both provided with isolation sealing covers, and a plurality of corrugated heat transfer plates are fixedly installed inside the isolation sealing covers; Among them, one side of the hot fluid channel cavity is equipped with two conduit interfaces, one above and one below, which are connected to the isolation sealing cover to circulate out the hot liquid. The other side is equipped with two conduit interfaces, one above and one below, which are connected to the outside of the isolation sealing cover and penetrate into the conduit interface inside the isolation sealing cover in the close-fitting cold fluid channel cavity to circulate out the cold liquid. Each conduit interface located at the outside of the isolation sealing cover is equipped with a liquid drive module. The outer wall of the liquid drive module is provided with a tilt adjustment module attached to the outside of the isolation sealing cover. The interior of the isolation sealing cover is provided with a safety detection mechanism corresponding to the magnetic attraction of the tilt adjustment module. The safety detection mechanism includes a detection unit, which includes a second reset airbag for filling with gas to expand and deploy, and a plurality of contact units arranged on the outside of the second reset airbag. The liquid drive module is controlled by the flowing liquid to drive the inclination adjustment module to adsorb the safety detection mechanism and move back and forth on the corrugated heat transfer plate to detect the dirt inside the component in real time.

2. The energy-saving aluminum plate-fin heat exchanger with a built-in safety device according to claim 1, characterized in that: The safety detection mechanism includes an arc-shaped side plate and an arc-shaped cavity block. The arc-shaped side plate and the arc-shaped cavity block form a U-shaped structure that slides inside the isolation sealing cover. The interior of the arc-shaped cavity block is provided with two groups of independent cavities to store gas and cleaning reagents respectively. A U-shaped turning plate is movably installed on the inner wall of the arc-shaped side plate. The surface of the arc-shaped side plate is provided with an arc-shaped flip groove. The sixth electric-controlled magnetic block that slides in the flip groove is fixedly installed on both side ends of the U-shaped turning plate. The movable axis of the U-shaped turning plate coincides with the arc center of the flip groove. The U-shaped turning plate can be rotated 90 degrees along the flip groove through the movable axis.

3. The energy-saving aluminum plate-fin heat exchanger with a built-in safety device according to claim 2, characterized in that: A plurality of self-expanding detection modules are fixedly installed on the open end of the U-shaped rotating plate in sequence, and each self-expanding detection module is stuck in the gap between the two corrugated heat transfer plates. The self-expanding detection module includes a cylindrical cavity, and a cavity rod is fixedly installed inside the cylindrical cavity. A slider is slidingly sleeved on the outer surface of the cavity rod, and the upper side of the slider is exposed to the outside of the cylindrical cavity. The first high-toughness return spring is fixedly installed at the position on both sides of the slider inside the cylindrical cavity. The slider is located at the midpoint of the outer surface of the cavity rod under the elastic action of the first high-toughness return springs on both sides, and the end of the slider exposed to the outside of the cylindrical cavity is fixedly installed with a mouth-shaped bracket.

4. The energy-saving aluminum plate-fin heat exchanger with a built-in safety device according to claim 3, characterized in that: The outer edge of the mouth-shaped bracket is a notch structure, and two groups of symmetrically fitted mouth-shaped delivery cavities are fixedly installed in the notch structure, wherein the outer surface of one side of the mouth-shaped delivery cavity is provided with a cleaning unit, and the outer surface of the other side of the mouth-shaped delivery cavity is provided with a detection unit. Two external hoses are fixedly connected at the position corresponding to each cylindrical cavity on the outside of the arc-shaped cavity block to respectively deliver gas and cleaning reagents, and the protruding ends of the external hoses are connected to the cavity rod, and two delivery conduits respectively connected to the external hoses are fixedly installed inside the cavity rod, and reserved cavity openings are opened at the midpoint of the cavity rod and at the upper side of the inner part of the slider, and the delivery conduit passes through the reserved cavity openings into the mouth-shaped bracket.

5. The energy-saving aluminum plate-fin heat exchanger with a built-in safety device according to claim 4, characterized in that: The sealed cavity isolated by the isolation sealing cover in the hot fluid channel cavity is for filling with hot liquid, and the sealed cavity isolated by the isolation sealing cover in the cold fluid channel cavity is for filling with cold liquid; the delivery conduit for conveying gas in the cavity rod is respectively connected to the cleaning unit and the detection unit through the reserved cavity opening, while the delivery conduit for conveying cleaning reagent in the cavity rod is only connected to the cleaning unit through the reserved cavity opening, and the end connected to the cleaning unit is a branch joint, and a plurality of connecting ports are arranged in sequence on the outer surface of the mouth-shaped delivery cavity, and the fifth electrically controlled magnetic suction block is fixedly installed at the position where the outer side wall of the arc-shaped side plate is in contact with the isolation sealing cover.

6. The energy-saving aluminum plate-fin heat exchanger with a built-in safety device according to claim 5, characterized in that: The detection unit includes a mouth-shaped frame fixedly mounted on the outer surface of the mouth-shaped conveying cavity, a second reset airbag is installed inside the mouth-shaped frame, a plurality of second connection tubes are fixedly mounted on one side of the second reset airbag that is in contact with the bottom of the mouth-shaped frame, a second conduit slot corresponding to the second connection tube is opened on the side wall of the mouth-shaped frame for the second connection tube to pass through, and the second connection tube that passes through is communicated with the connecting port on the same side of the mouth-shaped conveying cavity, a plurality of third card slots are opened on the inner wall of the mouth-shaped frame, a second convex buckle top plate is fixedly mounted on the outer surface of the second reset airbag, the side wall of the second convex buckle top plate is provided with a convex block embedded in each third card slot in sequence, and a plurality of contact units are arranged on the outer surface of the second convex buckle top plate, and a telescopic opening for the contact unit to pass through is opened on the outer surface of the mouth-shaped frame.

7. The energy-saving aluminum plate-fin heat exchanger with a built-in safety device according to claim 6, characterized in that: The contact unit includes a sealing cover tube, a fourth slot is provided on the inner wall of the sealing cover tube, and a circular sleeve is slidably installed inside the sealing cover tube through the fourth slot, a second high-toughness reset spring is fixedly installed on the bottom surface of the circular sleeve, and the circular sleeve is pushed against the inner top of the sealing cover tube under the elastic force of the second high-toughness reset spring, a detection cylinder is fixedly installed at the inner center position of the sealing cover tube, the center of the circular sleeve is sleeved on the inside of the detection cylinder, and an infrared detection head is fixedly installed on the center of the circular sleeve, the output end of the infrared detection head faces the inner bottom of the sealing cover tube, and an extension rod passing through the sealing cover tube is fixedly installed at the position of the center of the circular sleeve relative to the infrared detection head, and a ball sleeve is fixedly installed on the protruding end of the extension rod.

8. The energy-saving aluminum plate-fin heat exchanger with a built-in safety device according to claim 7, characterized in that: The cleaning unit includes a U-shaped frame fixedly mounted on the outer surface of the mouth-shaped conveying cavity, a first reset airbag is installed inside the U-shaped frame, and a plurality of first connecting tubes are fixedly mounted on one side of the first reset airbag that is in contact with the bottom of the U-shaped frame, a plurality of first conduit slots for the first connecting tubes to pass through are opened on the side wall of the U-shaped frame, and the first connecting tubes that pass through are communicated with and correspond to the connecting openings on the mouth-shaped conveying cavity on the same side, a plurality of second slots are opened in sequence on the inner wall of the U-shaped frame, a first convex buckle top plate is fixedly mounted on the top of the first reset airbag, the convex buckles of the first convex buckle top plate are embedded in the second slots one by one, and a cavity scraper is fixedly mounted on the upper surface of the first convex buckle top plate, the delivery conduit for delivering the cleaning agent in the cavity rod is respectively connected to each first connecting tube through a branch joint, and is connected to the inside of the cavity scraper, the top of the cavity scraper is provided with a circular opening at the position corresponding to the delivery conduit branch joint to spray out the cleaning agent, and a scraper plate close to both sides of the cavity scraper is fixedly mounted on the top of the U-shaped frame.

9. The energy-saving aluminum plate-fin heat exchanger with a built-in safety device according to claim 8, characterized in that: The liquid drive module includes an outer air guide cover, a round-headed cavity sleeve is fixedly installed at the internal axial center position of the outer air guide cover, a gap cavity exists between the round-headed cavity sleeve and the outer air guide cover, and a disc rotating plate is movably installed at one side end position of the inner side of the round-headed cavity sleeve, a propeller that passes through the round-headed cavity sleeve is fixedly installed at the center position of the disc rotating plate, a reciprocating threaded rod is fixedly installed at the position of the center of the disc rotating plate on one side of the propeller, a first clamping block is meshedly installed on the outer surface of the reciprocating threaded rod, a first clamping groove is provided on the inner wall of the round-headed cavity sleeve for the first clamping block to slide and engage, a first electrically-controlled magnetic block is fixedly installed on the side wall of the first clamping block, and a second electrically-controlled magnetic block is adsorbed and installed on the outer surface of the outer air guide cover through the magnetic attraction of the first electrically-controlled magnetic block.

10. The energy-saving aluminum plate-fin heat exchanger with a built-in safety device according to claim 9, characterized in that: The inclination adjustment module includes a magnetic shell fixedly mounted on the outer end of the second electrically controlled magnetic block, a servo drive motor is fixedly mounted on the side of the magnetic shell facing the isolation sealing cover, an arc-shaped cover plate is fixedly mounted on the outer surface of the servo drive motor, an arc-shaped cover plate is provided on the arc-shaped cover plate and an arc-shaped limiting groove corresponding to the flip groove on the same side is provided, a rocking plate is fixedly mounted on the output end, a third electrically controlled magnetic block that slides and is clamped in the arc-shaped limiting groove is fixedly mounted on the protruding end of the rocking plate, the third electrically controlled magnetic block is adsorbed and corresponds to the sixth electrically controlled magnetic block across the isolation sealing cover, and a fourth electrically controlled magnetic block that is adsorbed and corresponds to the fifth electrically controlled magnetic block across the isolation sealing cover is fixedly mounted on the outer surface of the arc-shaped cover plate.

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