Anti-freezing air cooler and anti-freezing method thereof

Abstract

The invention relates to an anti-freezing air cooler and an anti-freezing method thereof. The anti-freezing air cooler comprises an outer frame; the heat exchange tubes are arranged in the outer frame in parallel; the fins are arranged on the heat exchange tube in parallel; the heat preservation layer is arranged around the outer frame; the heat storage plate is arranged in the outer frame; the fan is arranged at the bottom of the outer frame and blows gas into the outer frame; wherein two ends of the heat exchange tube are respectively communicated with a medium inlet and a medium outlet; the heat exchange pipe comprises an inner pipe and an outer pipe arranged on the inner pipe in a sleeving mode. An anti-freezing space is formed between the inner pipe and the outer pipe; the two ends of the anti-freezing space communicate with a medium inlet and a medium outlet correspondingly. The fins are connected with the outer frame; the heat storage plate is located between the outer frame and the heat preservation layer. The problems that in an existing scheme, a steam heating tube bundle continuously works to heat ambient air, an air cooler is high in energy consumption, and the melting efficiency of frozen substances in a heat exchange tube is low by transferring heat through air are solved.

Description

Technical Field

[0001] The present invention relates to the field of air coolers, and in particular to an antifreeze air cooler and an antifreeze method thereof. Background Art

[0002] An air cooler uses a heat medium to pass through the heat exchange tubes, and a fan blows air through the bottom to dissipate heat. When the air cooler is shut down in winter, the heat exchange tubes freeze due to the influence of the ambient temperature, and the heat medium inside the tubes gradually freezes.

[0003] When restarting an air cooler, it must wait until the weather warms up and the ice inside the heat exchange tubes melts before it can be restarted. Chinese Utility Model Patent: A Freeze-Proof Air Cooler. Application Number: CN201720828744.1. If a winter restart is urgently necessary, a steam heating tube bundle can be installed to heat the ambient air and prevent ice from forming inside the heat exchange tubes. If ice has already formed inside the heat exchange tubes, this can also be melted.

[0004] This approach requires the steam heating tube bundle to operate continuously to heat the ambient air, resulting in high energy consumption for the air cooler. Furthermore, the melting of frozen material within the heat exchange tubes is achieved through heat transfer from the air, resulting in low melting efficiency.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Summary of the Invention

[0006] In view of the shortcomings of the above-mentioned prior art, the purpose of the present invention is to provide an antifreeze air cooler and an antifreeze method thereof, so as to solve the problems in the prior art of high energy consumption of the air cooler due to continuous operation of the steam heating tube bundle to heat the ambient air and low melting efficiency of the frozen material in the heat exchange tube due to heat transfer through the air.

[0007] To achieve the above object, the technical solution of the present invention is as follows:

[0008] An antifreeze air cooler;

[0009] The heat exchanger comprises an outer frame; heat exchange tubes arranged in parallel in the outer frame; fins arranged in parallel on the heat exchange tubes; a heat insulation layer arranged around the outer frame; a heat storage plate arranged in the outer frame; and a fan arranged at the bottom of the outer frame and blowing gas into the outer frame.

[0010] In which, the two ends of the heat exchange tube are respectively connected to the medium inlet and the medium outlet; the heat exchange tube includes an inner tube and an outer tube sleeved on the inner tube; an antifreeze space is formed between the inner tube and the outer tube; the two ends of the antifreeze space are respectively connected to the medium inlet and the medium outlet; the fins are connected to the outer frame; the heat storage plate is located between the outer frame and the insulation layer.

[0011] A further technical solution is that it also includes: a mixing bag arranged on the inner tube; wherein the mixing bag is connected to the antifreeze space; the antifreeze space includes a transfer section and a mixing section that are alternately connected in sequence; the transfer section is spirally formed around the inner tube; and the mixing section is formed around the inner tube.

[0012] A further technical solution is that the fins include: connecting plates arranged in parallel on the heat exchange tubes and fork plates arranged at intervals on the connecting plates; wherein the heat exchange tubes at the same height pass through the connecting plates; one end of the fork plate is connected to the connecting plate, and the other end of the fork plate extends to both sides; the connecting plates on the heat exchange tubes distributed up and down are staggered; the connecting plates on the connecting plates distributed up and down are staggered.

[0013] A further technical solution is that the insulation layer includes: a pressure plate, a connecting plate, columns arranged at the corners of the outer frame, and an insulation board arranged around the outer frame; wherein, the connecting plate is arranged between the column and the insulation board; the pressure plate is connected to the column and presses the insulation board.

[0014] A further technical solution is that the heat storage plate includes: heat storage frames arranged in parallel and adhesive wrapping the heat storage frames; the adhesive is respectively adhered to the outer frame and the insulation layer; through heat storage holes are formed in the heat storage frames; heat storage spaces are formed in parallel in the heat storage frames, and the heat storage spaces are distributed around the heat storage holes.

[0015] A further technical solution is that a heat storage body is superimposed on the top of the outer frame; when the heat storage bodies move relative to each other and are misplaced, the heat storage bodies seal the top of the outer frame; when the heat storage bodies move relative to each other and are reset, the heat storage bodies are connected to the top of the outer frame.

[0016] A further technical solution is that a sealing plate is provided at the bottom of the outer frame; a driving device is installed on the outer frame; one end of the sealing plate extends toward the fan, and the other end of the sealing plate extends toward the bottom edge of the outer frame; the driving device drives the sealing plate to swing open and close the bottom of the outer frame.

[0017] An antifreeze method for an antifreeze air cooler, comprising the following method:

[0018] Heat storage steps: The fan starts and blows gas into the outer frame; the heat medium flows into the heat exchange tube and transfers the heat to the fins; a portion of the heat on the fins is transferred to the heat storage plate through the outer frame; the gas drives the heat on the fins through the heat storage body and is discharged, and the heat storage body absorbs the heat;

[0019] Sealing steps: The fan stops, the heat storage bodies move relative to each other and seal the top of the outer frame, and the driving device drives the sealing plate to swing and close the bottom of the outer frame; the heat storage bodies and the heat storage plate release heat to keep the inner part of the outer frame warm;

[0020] Antifreeze steps: Before the fan is started, the heat medium flows along the antifreeze space, and the heat of the heat medium is transferred to the heat exchange tube; the heat heats the frozen material in the heat exchange tube and raises the ambient temperature of the heat exchange tube.

[0021] Compared with the prior art, the beneficial technical effects of the present invention are as follows: (1) a heat medium flows into the inner tube, and the heat of the heat medium is transferred to the outer tube and the fins respectively, and the heat on the fins is transferred to the heat storage plate through the outer frame; the fan is started to form a gas flowing from bottom to top along the outer frame, and the gas drives the heat on the outer tube and the fins to be discharged upward to the outer frame; after the fan stops, the ambient temperature around the antifreeze air cooler is low; the heat medium remaining in the inner tube gradually freezes; the heat storage plate releases heat, and the heat is transferred to the outer frame, and the outer frame insulates the surrounding environment of the heat exchange tube, slowing down the freezing progress of the heat medium remaining in the inner tube; the heat medium in the inner tube forms a frozen substance after freezing; before the antifreeze air cooler resumes operation, the frozen substance in the inner tube needs to be eliminated; the heat medium is first introduced into the antifreeze space, and part of the heat is transferred to the inner tube, and the other part of the heat is transferred to the outer tube and the fins; after the inner tube is heated, the frozen substance is gradually melted, and after the outer tube and the fins are heated, the ambient temperature in the outer frame is increased, thereby avoiding the low temperature of the external environment of the antifreeze air cooler affecting the heat exchange tube.

[0022] (2) The mixing section divides the transfer section into several sections. When the transfer section of the current section is partially blocked, it will not affect the flow of the heat medium in the transfer section of the next section, reducing the impact on the heating efficiency in the inner tube; in the later stage of melting, the frozen material that has not yet melted accumulates at the bending position of the heat exchange tube, and melted frozen material is formed at other positions of the heat exchange tube; the buffer space is close to the bending position of the heat exchange tube, and a larger amount of heat medium can accelerate the melting speed of the bending position of the heat exchange tube; because the temperature of other positions of the heat exchange tube is higher than the temperature of the bending position of the heat exchange tube at this time, the temperature distribution of the heat exchange tube is uneven, and the deformation of the outer tube is buffered by the tube skin.

[0023] (3) The outer frame is insulated by the insulation board to prevent heat from being dissipated through the outer frame. The heat can only be discharged through the top of the outer frame, and the heat of the gas is mostly transferred to the heat storage body; the columns limit the insulation board through the pressure plate and the connecting plate, and the corners of the outer frame and the columns are connected by the insulation board, so that the heat of the outer frame can only be transferred to the heat storage board for heat storage, and cannot be transferred to the columns and the insulation board.

[0024] (4) When heat is transferred to the heat storage plate through the outer frame, the heat storage frame is heated, and the heat storage holes and the heat storage space both store heat. When the antifreeze air cooler is antifreeze and heat-insulating, due to the heat insulation protection of the insulation layer, the heat of the heat storage plate can only be transferred to the outer frame. When the heat storage frame is dissipating heat, the heat in the heat storage space insulates the heat in the heat storage holes. The heat in the heat storage space of the outer circle is transferred first, and finally the heat in the heat storage holes is transferred. This makes the heat dissipation process of the heat storage frame slow, and the heat storage plate can continuously provide antifreeze and heat insulation to the outer frame, greatly slowing down the freezing process of the heat medium in the heat exchange tube.

[0025] (5) The driving end of the power device extends to push the push-pull block to move, and the step contacts the side of the heat storage body, pushing the heat storage body to be displaced in sequence, so that the through holes on the adjacent heat storage bodies are closed; the driving end of the power device contracts to pull the push-pull block to move and reset, and the heat storage body pulls the adjacent heat storage body to move and reset in sequence, so that the through holes on the adjacent heat storage bodies are connected; the through holes on the adjacent heat storage bodies are connected, so that when the gas is discharged through the heat storage body, the heat storage body stores heat; by closing the through holes on the adjacent heat storage body, the top of the outer frame is closed, and the heat storage body can release heat and keep warm to prevent freezing inside the outer frame.

[0026] (6) Before the fan is started, the driving end of the driving device is retracted, and the driving device drives the sealing plate to swing downward to open the bottom of the outer frame, so that the gas generated by the fan can smoothly enter the outer frame; after the fan stops working, the driving end of the driving device is extended, and the driving device drives the sealing plate to swing upward to close the bottom of the outer frame, so that the external ambient temperature of the antifreeze air cooler cannot affect the heat exchange tubes in the outer frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The figure shows a schematic structural diagram of an antifreeze air cooler according to a first embodiment of the present invention.

[0028] Figure 2 FIG. 1 shows a side structural diagram of the fin according to the first embodiment of the present invention.

[0029] Figure 3 FIG. 1 is a schematic diagram showing the cross-sectional structure of a heat exchange tube according to a first embodiment of the present invention.

[0030] Figure 4 A schematic diagram of a partial cross-sectional structure of a heat exchange tube according to a first embodiment of the present invention is shown.

[0031] Figure 5 A schematic diagram of a partial cross-sectional structure from a side view showing the position of the tube skin of the first embodiment of the present invention is shown.

[0032] Figure 6 A schematic side view of a partial cross-sectional structure of the mixing bag position according to the first embodiment of the present invention is shown.

[0033] Figure 7 A left-side partial structural diagram showing the position of the push-pull mechanism of the first embodiment of the present invention is shown.

[0034] Figure 8 A schematic side view of a partial structure of a heat storage plate according to a first embodiment of the present invention is shown.

[0035] Figure 9 The left side partial structural diagram shows the position of the sealing plate of the first embodiment of the present invention.

[0036] Figure 10 A schematic diagram of a partial top view of the thermal insulation layer according to the first embodiment of the present invention is shown.

[0037] Reference numerals in the accompanying drawings: 1, outer frame; 11, sealing plate; 111, guide plate; 112, guide hole; 12, driving device; 13, first heat insulation groove; 14, push-pull mechanism; 141, push-pull block; 142, power device; 143, step; 144, linkage block; 2, heat exchange tube; 21, inner tube; 22, outer tube; 221, tube skin; 222, buffer space; 23, antifreeze space; 24, transfer section; 25, mixing section; 26 , mixed bag; 3, fin; 31, connecting piece; 32, fork piece; 4, insulation layer; 41, column; 411, installation groove; 412, second insulation groove; 42, insulation board; 421, insulation cotton; 422, metal plate; 43, connecting plate; 431, connecting foot; 44, pressure plate; 45, insulation board; 5, heat storage board; 51, heat storage frame; 52, paste; 53, heat storage hole; 54, heat storage space; 6, fan; 7, heat storage body. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the present invention clearer, the device proposed in the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present invention will be clearer. It should be noted that the drawings are in a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, please refer to the drawings. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the efficacy and purpose that can be achieved by the present invention, should still fall within the scope of the technical content disclosed by the present invention.

[0039] First embodiment:

[0040] Figure 1The figure shows a schematic structural diagram of an antifreeze air cooler according to a first embodiment of the present invention. Figure 2 FIG. 1 shows a side structural diagram of the fin according to the first embodiment of the present invention. Figure 3 FIG. 1 is a schematic diagram showing the cross-sectional structure of a heat exchange tube according to a first embodiment of the present invention. Figure 4 A schematic diagram of a partial cross-sectional structure of a heat exchange tube according to a first embodiment of the present invention is shown. Figure 5 The figure shows a schematic diagram of a partial cross-section of the side view of the tube skin position of the first embodiment of the present invention. Figure 1-Figure 5 As shown, the present invention discloses an antifreeze air cooler.

[0041] The antifreeze air cooler includes: a fan 6, an outer frame 1, heat exchange tubes 2 arranged in parallel in the outer frame 1, fins 3 arranged in parallel on the heat exchange tubes 2, a heat insulation layer 4 arranged around the outer frame 1, and a heat storage plate 5 arranged in the outer frame 1.

[0042] A fan 6 is installed at the bottom of the outer frame 1 and blows air into the outer frame 1. The heat exchange tube 2 has two ends connected to the medium inlet and outlet, respectively. The heat exchange tube 2 includes an inner tube 21 and an outer tube 22 that is sleeved over the inner tube 21. An antifreeze space 23 is formed between the inner tube 21 and the outer tube 22. The two ends of the antifreeze space 23 are connected to the medium inlet and outlet, respectively. The fins 3 are connected to the outer frame 1. The heat storage plate 5 is located between the outer frame 1 and the insulation layer 4.

[0043] A heat medium flows into inner tube 21, and its heat is transferred to outer tube 22 and fin 3. The heat on fin 3 is then transferred to heat storage plate 5 through outer frame 1. Fan 6 is activated, creating an upward flow of air along outer frame 1. This air carries the heat on outer tube 22 and fin 3 upward and out of outer frame 1.

[0044] After fan 6 stops, the ambient temperature around the antifreeze air cooler is low. The remaining heat medium in inner tube 21 gradually freezes. Heat storage plate 5 releases heat, which is then transferred to outer frame 1. This outer frame insulates the surroundings around heat exchange tube 2, slowing the freezing of the remaining heat medium in inner tube 21. The heat medium in inner tube 21 freezes, forming a frozen mass.

[0045] Before resuming operation of a freeze-protected air cooler, the frozen material inside inner tube 21 must be removed. A heat medium is first introduced into the freeze-protected space 23, transferring some of the heat to inner tube 21 and some to outer tube 22 and fins 3. The heated inner tube 21 gradually melts the frozen material, while the heated outer tube 22 and fins 3 raise the ambient temperature inside outer frame 1, preventing the cooler ambient temperature outside the freeze-protected air cooler from affecting the heat exchange tubes 2.

[0046] The antifreeze air cooler also includes a mixing bag 26 mounted on the inner tube 21. This mixing bag 26 is located near the medium inlet and outlet, and is connected to the antifreeze space 23. Hot medium enters the antifreeze space 23 through the mixing bag 26 at one end and exits through the mixing bag 26 at the other end, completely covering and heating the inner tube 21.

[0047] The antifreeze space 23 includes several transfer sections 24 formed around the inner tube 21. It is necessary to ensure that the heat medium flows into each of these transfer sections 24. Because mixing bags 26 connect the transfer sections 24 of the antifreeze space 23, the heat medium enters the mixing bag 26 at one end for accumulation and mixing before being distributed to the various transfer sections 24. After flowing through the antifreeze space 23, the heat medium converges at the mixing bag 26 at the other end. By flowing the heat medium through each transfer section 24, the antifreeze space 23 completely covers and heats the inner tube 21.

[0048] The antifreeze chamber 23 includes a transfer section 24 and a mixing section 25, which are connected alternately. The transfer section 24 is formed in a spiral around the inner tube 21. From a side view, the transfer section 24 has a curved structure with a spiral arc. The mixing section 25 is formed around the inner tube 21. From a front view, the mixing section 25 has a ring shape. Several transfer sections 24 are connected to a single mixing section 25.

[0049] When the heat medium flows along the transfer section 24, the heat medium is distributed in several transfer sections 24, and the heat medium covers the outer circumference of the inner tube 21 to heat the inside of the inner tube 21. The heat medium enters the same mixing section 25 from several transfer sections 24 and is mixed, so that the temperature of the heat medium is balanced during the flow. The heat medium in the mixing section 25 melts the frozen material in the inner tube 21. Since the mixing section 25 is annular, the frozen material is melted into several sections. The heat medium in the transfer section 24 melts the frozen material in the inner tube 21, causing the frozen material to gradually change from solid to liquid, and the volume of the frozen material gradually shrinks. In the later stage of melting, the frozen material that has not yet melted gradually accumulates at the bending position of the heat exchange tube 2. As melting proceeds, the frozen material at the bending position of the heat exchange tube 2 also gradually melts.

[0050] If the transfer section 24 is a whole section, if any position of the transfer section 24 is blocked, the entire single transfer section 24 will be blocked, which will affect the flow rate of all heat media in the single transfer section 24 and reduce the heating efficiency in the inner tube 21.

[0051] The mixing section 25 can divide a single transfer section 24 into several sections. When the current transfer section 24 is partially blocked, the heat medium in the current transfer section 24 flows into the adjacent transfer section 24 after being mixed by the mixing section 25, so that the flow rates of the heat media in the several sections in the single transfer section 24 do not affect each other, thereby reducing the impact on the heating efficiency in the inner tube 21.

[0052] The heat exchange tubes of traditional air coolers include straight tubes and bent tubes. The straight tubes are laid in parallel, and the bent tubes are connected to adjacent straight tubes by welding.

[0053] The heat exchange tube 2 in the present application includes an inner tube 21 and an outer tube 22. The inner tube 21 includes a straight tube section and a curved tube section, and the outer tube 22 includes a straight tube section and a curved tube section. First, the straight tube section of the inner tube 21 and the straight tube section of the outer tube 22 are installed on the outer frame 1, and the straight tube section of the outer tube 22 exposes the two ends of the straight tube section of the inner tube 21. Then, the curved tube section of the inner tube 21 and the curved tube section of the outer tube 22 are welded, and the curved tube section of the outer tube 22 exposes the two ends of the curved tube section of the inner tube 21. Thereafter, the straight tube section of the inner tube 21 and the curved tube section of the inner tube 21 are welded, and the antifreeze space 23 is not connected at the welding position. Finally, since the welding position is exposed, the tube skin 221 is wrapped at the welding position for welding. The tube skin 221 is connected to the outer tube 22, and there is a buffer space 222 between the inner surface of the tube skin 221 and the outer surface of the inner tube 21. The buffer space 222 is connected to the antifreeze space 23, and a large amount of heat medium is formed in the buffer space 222. In the later stages of thawing, unmelted frozen material accumulates at the bend of the heat exchange tube 2, while melted frozen material forms elsewhere in the tube. The buffer space 222 is located near the bend of the heat exchange tube 2. The larger amount of heat medium in the buffer space accelerates the thawing process at the bend. Because the temperature at other locations in the heat exchange tube 2 is higher than the temperature at the bend, the temperature distribution in the tube 2 is uneven. The tube skin 221 acts as a buffer against the deformation of the outer tube 22.

[0054] The fins 3 include: connecting pieces 31 arranged in parallel on the heat exchange tubes 2 and fork pieces 32 arranged at intervals on the connecting pieces 31. The heat exchange tubes 2 at the same height pass through the connecting pieces 31. The connecting pieces 31 are arranged in the up and down directions. One end of the fork piece 32 is connected to the connecting piece 31, and the other end of the fork piece 32 extends to both sides. The fork piece 32 is connected to the upper and lower ends of the connecting piece 31. By extending the fork piece 32 to both sides, the heat exchange area of the fork piece 32 is increased, and the heat exchange efficiency is improved. An angle is formed between the two groups of fork pieces 32 located below. When the gas contacts the lower fork piece 32, it flows to the middle position of the two groups of fork pieces 32. After a certain amount of gas accumulates at the position of the two groups of fork pieces 32 below, the gas passes over the two groups of fork pieces 32 below and continues to flow upward. The gas contacts the lower fork piece 32 for a longer time and absorbs more heat.

[0055] The connecting pieces 31 on the vertically distributed heat exchange tubes 2 are staggered. This allows the gas to repeatedly contact the upper and lower prongs 32 during its upward flow, changing the gas flow direction multiple times and thus extending the gas flow time. Due to the large heat exchange area of the prongs 32, the gas can absorb a large amount of heat during flow. During the gas discharge process, this absorbed heat can be transferred to the heat storage element 7 to a greater extent.

[0056] Figure 6 A schematic side view of a partial cross-sectional structure of the mixing bag position according to the first embodiment of the present invention is shown. Figure 7 A left-side partial structural diagram showing the position of the push-pull mechanism of the first embodiment of the present invention is shown. Figure 8 A schematic side view of a partial structure of a heat storage plate according to a first embodiment of the present invention is shown. Figure 9 The left side partial structural diagram shows the position of the sealing plate of the first embodiment of the present invention. Figure 10 The figure shows a schematic diagram of a partial structure of the thermal insulation layer of the first embodiment of the present invention. Figures 1-10 As shown, the insulation layer 4 includes a pressure plate 44, a connecting plate 43, columns 41 arranged at the corners of the outer frame 1 in the vertical direction, and insulation panels 42 arranged around the outer frame 1. The connecting plate 43 is arranged between the columns 41 and the insulation panels 42. The pressure plate 44 is connected to the columns 41 and compresses the insulation panels 42.

[0057] Connecting legs 431 are formed in parallel on the connecting plate 43. The insulation board 42 includes insulation foam 421 and metal plates 422 attached to either side of the foam. Mounting slots 411 are formed on the columns 41, and the pressure plates 44 snap into place within the slots 411, compressing the metal plates 422. When the insulation board 42 is installed, the connecting legs 431 are inserted into the insulation foam 421 to restrain the board 42, with the end faces of the metal plates 422 resting against the connection between the connecting plate 43 and the connecting legs 431.

[0058] The outer frame 1 is formed with a first heat-insulating groove 13 at a corner, and the column 41 is formed with a second heat-insulating groove 412. The outer frame 1 and the column 41 are insulated by heat-insulating plates 45, which are inserted into the first heat-insulating groove 13 and the second heat-insulating groove 412 respectively.

[0059] The outer frame 1 is insulated by thermal insulation panels 42, preventing heat from dissipating through the outer frame 1. Heat is discharged only through the top of the outer frame 1, and most of the heat in the gas is transferred to the heat storage body 7. The columns 41 are restrained by thermal insulation panels 42 via pressure plates 44 and connecting plates 43. The corners of the outer frame 1 and the columns 41 are connected by thermal insulation panels 45, so that the heat of the outer frame 1 can only be transferred to the heat storage panels 5 for heat storage, and cannot be transferred to the columns 41 and thermal insulation panels 42.

[0060] The heat storage plate 5 comprises a heat storage frame 51 arranged in parallel and an adhesive 52 encasing the heat storage frame 51. The adhesive 52 is bonded to the outer frame 1 and the insulation layer 4, respectively. The adhesive 52 is double-sided, securing the heat storage frame 51 between the outer frame 1 and the insulation layer 4. Through-holes 53 are formed within the heat storage frame 51. Several groups of heat storage spaces 54 are arranged in parallel within the heat storage frame 51, surrounding the heat storage holes 53. The heat storage spaces 54 can be arranged in a single or multiple circles around the heat storage holes 53.

[0061] When heat is transferred to the heat storage plate 5 through the outer frame 1, the heat storage frame 51 is heated, and both the heat storage holes 53 and the heat storage space 54 store heat. When the antifreeze air cooler is performing antifreeze and heat preservation, due to the thermal insulation protection of the thermal insulation layer 4, the heat of the heat storage plate 5 can only be transferred to the outer frame 1. When the heat storage frame 51 dissipates heat, the heat in the heat storage space 54 insulates the heat in the heat storage holes 53. The heat in the outer ring heat storage space 54 is transferred first, and the heat in the heat storage holes 53 is transferred last. This slows the heat dissipation process of the heat storage frame 51, allowing the heat storage plate 5 to continuously protect the outer frame 1 from freezing and heat preservation, greatly slowing the freezing process of the heat medium in the heat exchange tube 2.

[0062] Multiple sets of heat accumulators 7 are stacked on top of the outer frame 1. These heat accumulators 7 are formed with through-holes arranged in parallel. The heat accumulators 7 are thin plates. The contact areas between the heat accumulators 7 are coated with a wear-resistant layer to prevent friction and wear between the heat accumulators 7 when they move.

[0063] When the heat storage bodies 7 move and are misplaced relative to each other, the heat storage bodies 7 cover the through holes on the adjacent heat storage bodies 7 , so that the gas cannot pass through the heat storage bodies 7 , and the heat storage bodies 7 seal the top of the outer frame 1 .

[0064] When the heat storage bodies 7 move relative to each other and reset, the through holes on adjacent heat storage bodies 7 are connected to each other, and gas can pass through the heat storage bodies 7, so that the heat storage bodies 7 are connected to the top of the outer frame 1.

[0065] A push-pull mechanism 14 for moving the heat storage body 7 is installed on the top of the outer frame 1. The push-pull mechanism 14 includes a push-pull block 141 movably arranged on the top of the outer frame 1 and a power device 142 for driving the push-pull block 141 to move. A step 143 is formed on the push-pull block 141. The push-pull block 141 is movably connected to the push-pull block 141 located below. Exemplarily, the power device 142 is an electric cylinder. A linkage block 144 is provided at the lower end of the side of the heat storage body 7. When the heat storage body 7 moves and resets, the heat storage body 7 contacts the linkage block 144 to drive the adjacent heat storage body 7 to move and reset.

[0066] The driving end of the power device 142 extends to push the push-pull block 141 to move, and the step 143 contacts the side of the heat storage body 7, pushing the heat storage bodies 7 to be displaced in sequence, so that the through holes on adjacent heat storage bodies 7 are closed. The driving end of the power device 142 contracts and pulls the push-pull block 141 to move and reset, and the heat storage bodies 7 pull the adjacent heat storage bodies 7 to move and reset in sequence, so that the through holes on adjacent heat storage bodies 7 are connected. The through holes on adjacent heat storage bodies 7 are connected, so that when gas is discharged through the heat storage bodies 7, the heat storage bodies 7 store heat. By closing the through holes on adjacent heat storage bodies 7, the top of the outer frame 1 is closed, and the heat storage bodies 7 can release heat and insulate the inside of the outer frame 1 to prevent freezing.

[0067] A sealing plate 11 is provided at the bottom of the outer frame 1. A drive device 12 is mounted on the outer frame 1. Exemplarily, the drive device 12 is an electric cylinder. One end of the sealing plate 11 extends toward the fan 6, and the other end extends toward the bottom edge of the outer frame 1. The drive device 12 drives the sealing plate 11 to swing open and close the bottom of the outer frame 1.

[0068] The driving end of the drive mechanism 12 is movably connected to one end of the sealing plate 11, while the other end of the sealing plate 11 is swingably connected to the bottom of the outer frame 1. A guide plate 111 is provided at the bottom of the outer frame 1, and a guide hole 112 is formed in the guide plate 111. One end of the sealing plate 11 moves along the guide hole 112, allowing the sealing plate 11 to move smoothly. The sealing plate 11 can accurately move to the preset position, ensuring that the sealing plate 11 seals the bottom of the outer frame 1.

[0069] Before the fan 6 is started, the driving end of the driving device 12 is retracted, and the driving device 12 drives the sealing plate 11 to swing downward to open the bottom of the outer frame 1, so that the gas generated by the fan 6 can smoothly enter the outer frame 1.

[0070] After the fan 6 stops working, the driving end of the driving device 12 extends, and the driving device 12 drives the sealing plate 11 to swing upward to close the bottom of the outer frame 1. The external ambient temperature of the antifreeze air cooler cannot affect the heat exchange tube 2 in the outer frame 1.

[0071] Second embodiment:

[0072] The antifreeze methods for antifreeze air coolers include the following methods:

[0073] Heat storage step: Fan 6 starts, blowing air into outer frame 1. The air flows upward along outer frame 1. A heat medium enters heat exchange tubes 2, where it flows into the heat exchange tubes 2. The heat from the heat medium is transferred to fins 3 through the heat exchange tubes 2. A portion of the heat on fins 3 is transferred through outer frame 1 to heat storage plates 5. The air carries the heat from fins 3 through heat storage elements 7, where it is then discharged.

[0074] Heat is distributed across the connecting piece 31 and the prongs 32. The heat from the connecting piece 31 is transferred to the heat storage plate 5 through the external frame 1. The prongs 32 slow the flow of gas, and the arrangement of the fins 3 lengthens the gas flow path, allowing the gas to carry away more heat from the prongs 32. This heat then passes through the heat storage element 7 and is discharged from the external frame 1.

[0075] Sealing steps: Fan 6 stops, and the push-pull mechanism 14 pushes the thermal storage bodies 7 to move and offset relative to each other. The through-holes on adjacent thermal storage bodies 7 are sealed and closed together. The thermal storage bodies 7 seal the top of the outer frame 1. The drive device 12 drives the sealing plate 11 to swing upward and close the bottom of the outer frame 1. A sealed space is formed within the outer frame 1, and the thermal storage bodies 7 and thermal storage plates 5 release heat to insulate the interior of the outer frame 1. The heat from the thermal storage bodies 7 is transferred downward, dissipating heat from top to bottom into the outer frame 1. Under the action of the insulation layer 4, the thermal storage plates 5 release heat to the outer frame 1, and the heat is transferred through the outer frame 1 into the outer frame 1.

[0076] Antifreeze step: Before the fan 6 is started, the heat medium flows along the antifreeze space 23, and the heat of the heat medium is transferred to the heat exchange tube 2. The heat heats the frozen material in the heat exchange tube 2 and raises the temperature of the environment of the heat exchange tube 2.

[0077] The heat medium flows sequentially along transfer section 24 and mixing section 25. Heat from transfer section 24 is transferred to inner tube 21, gradually melting the frozen material and reducing its volume. Heat from mixing section 25 is then transferred to inner tube 21, melting the frozen material into several segments. Heat from antifreeze space 23 is transferred to fins 3, which dissipate heat, raising the ambient temperature of heat exchange tube 2.

[0078] When the antifreeze air cooler in the present application is working, heat is absorbed by the heat storage plate 5 and the heat storage body 7. After the antifreeze air cooler stops working, the sealing plate 11 swings to seal the bottom of the outer frame 1, and the heat storage body 7 moves to seal the top of the outer frame 1, forming a sealed space inside the outer frame 1. After that, the heat storage body 7 continues to release heat, and the heat storage plate 5 transfers the heat to the outer frame 1 to release heat, so that the heat is evenly distributed inside the outer frame 1 to keep the heat exchange tube 2 warm, slowing down the freezing progress of the heat medium in the heat exchange tube 2. Before the antifreeze air cooler works, the heat medium flows into the antifreeze space 23 to heat the inner tube 21 and the fin 3, the fin 3 dissipates heat to increase the ambient temperature of the heat exchange tube 2, and the inner tube 21 dissipates heat to melt the frozen material, thereby achieving rapid defrosting of the antifreeze air cooler and improving the antifreeze efficiency.

[0079] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0080] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. An antifreeze air cooler, characterized in that: include: External frame (1); Heat exchange tubes (2) are arranged in parallel inside the outer frame (1); Fins (3) are arranged in parallel on the heat exchange tubes (2); A thermal insulation layer (4) is arranged around the outer frame (1); A heat storage plate (5) is arranged in the outer frame (1); a fan (6), arranged at the bottom of the outer frame (1) and blowing gas into the outer frame (1); The two ends of the heat exchange tube (2) are connected to the medium inlet and the medium outlet respectively; the heat exchange tube (2) comprises an inner tube (21) and an outer tube (22) sleeved on the inner tube (21); an antifreeze space (23) is formed between the inner tube (21) and the outer tube (22); the two ends of the antifreeze space (23) are connected to the medium inlet and the medium outlet respectively; the fin (3) is connected to the outer frame (1); and the heat storage plate (5) is located between the outer frame (1) and the thermal insulation layer (4).

2. The antifreeze air cooler according to claim 1, characterized in that: Also includes: A mixing bag (26) is arranged on the inner tube (21); wherein the mixing bag (26) is connected to the antifreeze space (23); the antifreeze space (23) includes a transfer section (24) and a mixing section (25) that are alternately connected in sequence; the transfer section (24) is formed in a spiral around the inner tube (21); and the mixing section (25) is formed around the inner tube (21).

3. The antifreeze air cooler according to claim 2, characterized in that: The fin (3) comprises: connecting pieces (31) arranged in parallel on the heat exchange tube (2) and fork pieces (32) arranged at intervals on the connecting pieces (31); wherein the heat exchange tube (2) at the same height passes through the connecting piece (31); one end of the fork piece (32) is connected to the connecting piece (31), and the other end of the fork piece (32) extends to both sides; the connecting pieces (31) on the heat exchange tube (2) distributed up and down are staggered; the connecting pieces (31) on the connecting pieces (31) distributed up and down are staggered.

4. The antifreeze air cooler according to claim 2, characterized in that: The thermal insulation layer (4) comprises: a pressing plate (44), a connecting plate (43), a column (41) arranged at the corner of the outer frame (1), and a thermal insulation plate (42) arranged around the outer frame (1); wherein the connecting plate (43) is arranged between the column (41) and the thermal insulation plate (42); and the pressing plate (44) is connected to the column (41) and presses the thermal insulation plate (42).

5. The antifreeze air cooler according to claim 2, characterized in that: The heat storage plate (5) comprises: heat storage frames (51) arranged in parallel and a paste (52) wrapping the heat storage frames (51); the paste (52) is respectively adhered to the outer frame (1) and the thermal insulation layer (4); a through heat storage hole (53) is formed in the heat storage frame (51); heat storage spaces (54) are formed in parallel in the heat storage frame (51), and the heat storage spaces (54) are distributed around the heat storage holes (53).

6. The antifreeze air cooler according to claim 2, characterized in that: A heat storage body (7) is superimposed on the top of the outer frame (1); when the heat storage bodies (7) are displaced relative to each other, the heat storage bodies (7) seal the top of the outer frame (1); when the heat storage bodies (7) are repositioned relative to each other, the heat storage bodies (7) are connected to the top of the outer frame (1).

7. The antifreeze air cooler according to claim 2, characterized in that: A sealing plate (11) is provided at the bottom of the outer frame (1); a driving device (12) is installed on the outer frame (1); one end of the sealing plate (11) extends toward the fan (6), and the other end of the sealing plate (11) extends toward the bottom edge of the outer frame (1); the driving device (12) drives the sealing plate (11) to swing open and close the bottom of the outer frame (1).

8. A method for antifreezing an air cooler, characterized in that: The following methods are included: Heat storage step: the fan (6) is started to blow gas into the outer frame (1); a heat medium flows into the heat exchange tube (2), and the heat is transferred to the fin (3); a portion of the heat on the fin (3) is transferred to the heat storage plate (5) through the outer frame (1); the gas drives the heat on the fin (3) through the heat storage body (7) and is discharged, and the heat storage body (7) absorbs the heat; Sealing steps: the fan (6) stops, the heat storage bodies (7) move mutually and offset to seal the top of the outer frame (1), and the driving device (12) drives the sealing plate (11) to swing and close the bottom of the outer frame (1); the heat storage body (7) and the heat storage plate (5) release heat to keep the inner part of the outer frame (1) warm; Antifreeze step: before the fan (6) is started, the heat medium flows along the antifreeze space (23), and the heat of the heat medium is transferred to the heat exchange tube (2); the heat heats the frozen material in the heat exchange tube (2) and increases the ambient temperature of the heat exchange tube (2).

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