A heat exchange device using waste heat from exhaust air for heat preservation

Abstract

The present invention discloses a heat exchange device which utilizes the waste heat of exhaust air for heat preservation. The present invention relates to the technical field of heat exchange devices, and comprises a bottom shell, and a retaining ring which is fixedly connected to the outer surface of the bottom shell; an air intake mechanism which is used to blow the exhaust air into the inner cavity of the bottom shell. By arranging the air intake mechanism, the exhaust air in the mine can be slowly sucked into the inner cavity of the bottom shell when the device is working, and can be separated from the bottom shell after a large amount of dust is accumulated inside due to long-term operation, so as to facilitate the cleaning of the dust; a heat storage mechanism which is used to store and transfer the waste heat in the exhaust air. By arranging the heat storage mechanism, when the air intake mechanism transfers the exhaust air in the mine to the inner cavity of the bottom shell, the heat in the air can be absorbed and transferred, so that the heat in the exhaust air can be stored, so as to utilize the heat in the exhaust air while preventing the exhaust gas in the mine from leaking out.

Description

Technical Field

[0001] The invention relates to the technical field of heat exchange equipment, and in particular to a heat exchange equipment that utilizes waste heat from exhaust air for heat preservation. Background Art

[0002] Waste heat from exhaust air refers to low-grade waste heat emitted during industrial production, usually in the form of low-temperature waste gas. Although this type of waste heat has a low temperature, the total amount is huge. If it can be effectively recycled and utilized, it can significantly improve energy utilization efficiency, reduce production costs, and reduce environmental pollution. Heat exchange equipment is a key technical equipment for realizing waste heat recovery from exhaust air. Its core function is to transfer the heat in the exhaust gas to other working fluids or systems through a heat transfer medium, thereby realizing the transfer and reuse of thermal energy.

[0003] When using exhaust air waste heat for insulation, if exhaust air is used directly without passing through a heat exchanger, the dust and harmful substances carried in the exhaust air may have an adverse effect on related facilities. First, the dust in the exhaust air will gradually settle on the inner wall of the wellbore and the surface of the equipment, forming a dust layer, which not only affects the cleanliness and appearance of the wellbore, but may also block the ventilation holes or equipment gaps, reduce ventilation efficiency, and even cause safety hazards. Secondly, harmful substances in the exhaust air (such as hydrogen sulfide, carbon monoxide, etc.) may cause corrosion to the metal structure of the wellbore, shorten the service life of the wellbore, and increase maintenance costs. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A heat exchange device that uses waste heat from exhaust air for heat preservation, comprising a bottom shell, and a clamping ring fixedly connected to the outer surface of the bottom shell;

[0005] The air intake mechanism is used to blow the exhaust air into the inner cavity of the bottom shell. By setting the air intake mechanism, the exhaust air in the mine can be slowly sucked into the inner cavity of the bottom shell when the device is working, and can be separated from the bottom shell after a large amount of dust is accumulated inside due to long-term work, thereby facilitating the cleaning of dust;

[0006] The heat storage mechanism is used to store and transfer the waste heat in the exhaust air. By setting the heat storage mechanism, when the air intake mechanism transfers the exhaust air in the mine to the inner cavity of the bottom shell, the heat in the air can be absorbed and transferred, thereby storing the heat in the exhaust air;

[0007] The heat transfer mechanism is used to transfer the heat in the heat storage mechanism and quickly discharge it. By setting the heat transfer mechanism, when the heat storage mechanism absorbs the heat in the exhaust air, the heat in the heat storage mechanism can be transferred to the air, and after the air temperature gradually rises, the air volume expands, and then the air with increased temperature is discharged later;

[0008] The ejection mechanism is used to discharge the air heated by the exhaust air waste heat into the wellbore. By setting the ejection mechanism, after the heat conduction mechanism rises to the moving height, the hot air inside the heat conduction mechanism can be automatically discharged and ejected quickly, thereby increasing the temperature in the wellbore;

[0009] The air intake mechanism is movably connected to the bottom of the bottom shell through a locking ring, the outer surface of the bottom shell is fixedly connected to a first support rod, the heat storage mechanism is arranged directly above the bottom shell through the first support rod, the heat conduction mechanism is slidably connected to the inner cavity of the heat storage mechanism, and the ejection mechanism is arranged directly above the heat conduction mechanism through the first support rod.

[0010] Preferably, the air intake mechanism includes an air intake box, the outer surface of which is fixedly connected with a locking plate, the locking plate is slidably connected to the inner cavity of the locking ring, the lower surface of the air intake box is penetrated by an air permeable net, the bottom surface of the inner cavity of the air intake box is penetrated by a stepper motor, the output end of the stepper motor is equipped with a rotating rod through a coupling, the top of the rotating rod is fixedly connected with a fan blade, and by providing the locking plate, when the air intake box is inserted into the bottom of the bottom shell and rotated, the locking plate can be made to penetrate into the inner cavity of the locking ring, thereby completing the installation of the air intake mechanism, and by providing the stepper motor, after the power is connected and the switch is turned on, the rotating rod can drive the fan blade to rotate, and the rotating rod can be controlled to rotate slowly, thereby causing the fan blade to rotate slowly and blow hot air into the inner cavity of the bottom shell, so that the exhausted air in the mine slowly flows into the inner cavity of the bottom shell.

[0011] Preferably, the heat storage mechanism includes connecting pipes, the number of which is several, and the several connecting pipes are evenly penetrated through the upper surface of the bottom shell, the top of the connecting pipe is fixedly connected to a transfer pipe, both ends of the transfer pipe are penetrated by a heat collecting pipe, and an exhaust hole is opened at the bottom of the heat collecting pipe.

[0012] Preferably, the heat storage mechanism also includes an exhaust box, the exhaust box is fixedly connected to the upper surface of the bottom shell, the inner wall of the exhaust box is fixedly connected with a sealing ring, the inner wall of the exhaust box is fixedly connected with a breathable cover, the outer surface of the breathable cover is fixedly connected with a sealing gasket, the sealing gasket is composed of two annular rubber rings and the two annular rubber rings are extruded and adapted to each other, the inner wall of the breathable cover is fixedly connected with an adsorption ring, the bottom end of the adsorption ring is fixedly connected with a guide cover, the guide cover is fixedly connected to the inner wall of the bottom shell, the guide cover is located directly above the air intake mechanism, and by providing the guide cover, the airflow generated by the air intake mechanism can be guided so that the airflow first enters the space where the adsorption ring is located, and the dust and debris in the exhaust air are attached, thereby achieving the effect of preventing dust and debris from entering the interior of the heat collecting tube through the holes of the breathable cover, thereby increasing the service life of the device, and by providing the sealing gasket, the holes on the outer surface of the breathable cover can be blocked when there is no airflow, and under the blowing of the airflow, the sealing gasket will be squeezed, thereby allowing the airflow to flow.

[0013] Preferably, the lower surface of the heat collecting tube is fixedly connected with a connecting block, the lower surface of the connecting block is fixedly connected with a limiting cover, the heat conducting mechanism includes a sliding tube, the sliding tube is slidably connected to the inner cavity of the heat collecting tube, the outer surface of the sliding tube is fixedly connected with a connecting ring, the inner cavity of the connecting ring is fixedly connected with a top plate, the lower surface of the top plate is fixedly connected with a sliding rod, and the sliding rod is slidably connected to the inner cavity of the limiting cover. By setting the limiting cover, the exhaust gas discharged from the exhaust hole at the bottom of the heat collecting tube and the exhaust air discharged from the top opening of the exhaust box can be guided so that they are directly discharged to the inner wall of the mine. By setting the sliding tube, it can slide in the inner cavity of the heat collecting tube, and then when the air temperature in the sliding tube and the inner cavity of the heat collecting tube increases and expands, the sliding tube moves upward. The sliding tube adopts a double-layer vacuum glass tube to prevent heat loss. By setting the connecting ring, several sliding tubes can be connected together, so that when the sliding tube moves upward, the top plate and the sliding rod will be driven to move upward, and the limiting cover also plays a role in limiting the sliding rod.

[0014] Preferably, the bottom end of the sliding rod is fixedly connected with a first blocking disk, which is squeezed and fitted with the inner ring of the sealing ring, the lower surface of the first blocking disk is fixedly connected with a guide ball, the lower surface of the first blocking disk is fixedly connected with a second support rod, the bottom end of the second support rod is fixedly connected with a friction ring, and the friction ring is frictionally fitted with the inner ring of the adsorption ring.

[0015] Preferably, a first fixing ring is fixedly connected to the inner wall of the sliding tube, a first spring is fixedly connected to the lower surface of the first fixing ring, the bottom end of the first spring is fixedly connected to the bottom surface of the inner cavity of the heat collecting tube, and the top of the sliding tube is fixedly connected to a blocking mechanism, the blocking mechanism includes a round tube, and the round tube is fixedly connected to the top of the sliding tube. By setting the first spring, the sliding tube can be pulled so that the sliding tube is always subjected to a downward pulling force, and then when the air inside the sliding tube is subsequently discharged to restore the air pressure to balance, the first spring will release the stored elastic potential energy, so that the sliding tube can move downward quickly in the inner cavity of the heat collecting tube, and then utilize the characteristic of the spring to squeeze downward for a section to squeeze the internal air and discharge it from the top round tube.

[0016] Preferably, a second fixing ring is fixedly connected to the inner wall of the circular tube, a second spring is fixedly connected to the lower surface of the second fixing ring, a second blocking disk is fixedly connected to the bottom end of the second spring, a sealing ring is fixedly connected to the outer surface of the second blocking disk, and the sealing ring is squeezed and adapted to the inner wall of the circular tube. By setting the second spring, the second blocking disk can be pulled so that the second blocking disk is always subjected to an upward pulling force, so that the second blocking disk drives the sealing ring to be tightly squeezed against the inner wall of the circular tube, thereby preventing the air at the bottom from being discharged, and the stiffness coefficient of the second spring is larger than that of the first spring, so when the gas expands, the second spring will not be squeezed and deformed.

[0017] Preferably, the ejection mechanism includes a third support rod, the third support rod is fixedly connected to the top end of the first support rod, the top end of the third support rod is fixedly connected to a connecting box, the outer surface of the connecting box is fixedly connected to a soft ring, and by setting up the ejection mechanism, when the sliding tube moves upward due to the expansion of the internal air, the second blocking disk inside the circular tube can be squeezed, thereby causing the second blocking disk to move downward to discharge the airflow.

[0018] Preferably, an exhaust port is penetrated through the upper surface of the connecting box, and a straight pipe is penetrated through the lower surface of the connecting box. The number of the straight pipes is several and the several straight pipes are evenly distributed. The straight pipe is slidably connected to the inner cavity of the circular tube, and a fourth support rod is fixedly connected to the inner wall of the straight pipe. The end of the fourth support rod is fixedly connected to an extrusion rod, and the bottom end of the extrusion rod is extruded and adapted to the upper surface of the second blocking disk.

[0019] The present invention provides a heat exchange device that utilizes the waste heat of exhaust air for heat preservation. It has the following beneficial effects:

[0020] 1. The heat exchange device that utilizes the waste heat of exhaust air for insulation can slowly draw the exhaust air in the mine into the inner cavity of the bottom shell when the device is working by setting an air intake mechanism. After a large amount of dust accumulates inside due to long-term operation, it can be separated from the bottom shell, thereby facilitating the cleaning of the dust.

[0021] Second, the heat exchange equipment that utilizes the waste heat of exhaust air for insulation can absorb the heat in the air and transfer the heat when the air intake mechanism transfers the exhaust air in the mine to the inner cavity of the bottom shell by setting a heat storage mechanism, thereby storing the heat in the exhaust air.

[0022] 3. The heat exchange equipment that utilizes the waste heat of exhaust air for insulation can transfer the heat in the heat storage mechanism to the air by setting a heat conduction mechanism when the heat storage mechanism absorbs the heat in the exhaust air, and after the air temperature gradually rises, the air volume expands, and then the air with increased temperature is discharged subsequently.

[0023] Fourth, the heat exchange equipment that utilizes the waste heat of exhausted air for insulation can automatically discharge the hot air inside the heat-conducting mechanism and quickly eject it after the heat-conducting mechanism rises to the moving height by providing a spraying mechanism, thereby increasing the temperature in the wellbore.

[0024] 5. The heat exchange equipment that utilizes the waste heat of exhaust air for insulation can transfer the air in the inner cavity of the bottom shell to the inner cavity of the transfer pipe by setting a connecting pipe, and finally enter the inner cavity of the heat collecting pipe from both ends of the transfer pipe. The heat collecting pipe adopts a double-layer metal tank with a vacuum interlayer, which can absorb and store the heat in the exhaust air to a greater extent, and an exhaust hole is opened at the bottom to discharge the exhaust air that has absorbed heat in the inner cavity of the heat collecting pipe, so as to achieve the effect of insulating the shaft by only utilizing the heat in the exhaust air instead of directly using the exhaust air in the mine, thereby preventing the exhaust air from containing harmful gases or impurities and causing harm to personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the external structure of a heat exchange device that utilizes waste heat from exhaust air for heat preservation according to the present invention;

[0026] Figure 2 A side view of the structure of a heat exchange device for heat preservation using waste heat from exhaust air according to the present invention;

[0027] Figure 3 This is a schematic diagram of the disassembled structure of a heat exchange device that utilizes waste heat from exhaust air for heat preservation according to the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of the air intake mechanism of the present invention;

[0029] Figure 5It is a schematic diagram of the structure of the heat storage mechanism of the present invention;

[0030] Figure 6 It is a schematic diagram of the cross-sectional structure of the heat storage mechanism of the present invention;

[0031] Figure 7 It is a schematic diagram of the partial structure of the heat storage mechanism of the present invention;

[0032] Figure 8 It is a schematic diagram of the heat conduction mechanism structure of the present invention;

[0033] Fig. 9 It is a schematic diagram of a partial cross-sectional structure of the heat conducting mechanism of the present invention;

[0034] Fig.10 It is a schematic diagram of the structure of the blocking mechanism of the present invention;

[0035] Fig.11 It is a schematic diagram of the structure of the ejection mechanism of the present invention;

[0036] Fig.12 For the present invention Fig.11 A magnified schematic diagram of the structure in the middle.

[0037] In the figure: 1, bottom shell; 2, positioning ring; 3, air intake mechanism; 4, first support rod; 5, heat storage mechanism; 6, heat conduction mechanism; 7, ejection mechanism; 31, air intake box; 32, positioning plate; 33, air permeable net; 34, stepping motor; 35, rotating rod; 36, fan blade; 51, heat collecting tube; 52, transfer tube; 53, connecting tube; 54, connecting block; 55, limiting cover; 56, exhaust box; 57, sealing ring; 58, air permeable cover; 59, adsorption ring; 510, guide cover; 511, sealing gasket; 61, sliding Moving pipe; 62, connecting ring; 63, top plate; 64, sliding rod; 65, first blocking disk; 66, guide ball; 67, second support rod; 68, friction ring; 69, blocking mechanism; 610, first fixed ring; 611, first spring; 691, round tube; 692, second fixed ring; 693, second spring; 694, second blocking disk; 695, sealing ring; 71, third support rod; 72, connecting box; 73, soft ring; 74, exhaust port; 75, straight pipe; 76, fourth support rod; 77, extrusion rod. DETAILED DESCRIPTION

[0038] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0039] like Figure 1-Figure 12 As shown, the present invention provides a technical solution: a heat exchange device that uses exhaust air waste heat for heat preservation, comprising a bottom shell 1, and a clamping ring 2 fixedly connected to the outer surface of the bottom shell 1;

[0040] The air intake mechanism 3 is used to blow the exhaust air into the inner cavity of the bottom shell 1. By setting the air intake mechanism 3, the exhaust air in the mine can be slowly sucked into the inner cavity of the bottom shell 1 when the device is working, and can be separated from the bottom shell 1 after a large amount of dust is accumulated inside due to long-term work, so as to facilitate the cleaning of dust;

[0041] The heat storage mechanism 5 is used to store and transfer the waste heat in the exhaust air. By setting the heat storage mechanism 5, when the air intake mechanism 3 transfers the exhaust air in the mine to the inner cavity of the bottom shell 1, the heat in the air can be absorbed and transferred, so that the heat in the exhaust air can be stored;

[0042] The heat conducting mechanism 6 is used to transfer the heat in the heat storage mechanism 5 and quickly discharge it. By setting the heat conducting mechanism 6, when the heat storage mechanism 5 absorbs the heat in the exhausted air, the heat in the heat storage mechanism 5 can be transferred to the air, and after the air temperature gradually increases, the air volume is expanded, and then the air with increased temperature is discharged later;

[0043] The ejection mechanism 7 is used to discharge the air heated by the exhaust air waste heat into the wellbore. By setting the ejection mechanism 7, after the heat conduction mechanism 6 rises to the moving height, the hot air inside the heat conduction mechanism 6 can be automatically discharged and ejected quickly, thereby increasing the temperature in the wellbore;

[0044] The air intake mechanism 3 is movably connected to the bottom of the bottom shell 1 through a locking ring 2, and a first support rod 4 is fixedly connected to the outer surface of the bottom shell 1. The heat storage mechanism 5 is arranged directly above the bottom shell 1 through the first support rod 4, and the heat conduction mechanism 6 is slidably connected to the inner cavity of the heat storage mechanism 5. The ejection mechanism 7 is arranged directly above the heat conduction mechanism 6 through the first support rod 4.

[0045] The air intake mechanism 3 includes an air intake box 31, the outer surface of the air intake box 31 is fixedly connected with a retaining plate 32, the retaining plate 32 is slidably connected to the inner cavity of the retaining ring 2, the lower surface of the air intake box 31 is penetrated with a breathable net 33, the bottom surface of the inner cavity of the air intake box 31 is penetrated with a stepper motor 34, the output end of the stepper motor 34 is installed with a rotating rod 35 through a coupling, the top of the rotating rod 35 is fixedly connected with a fan blade 36, and by setting the retaining plate 32, the air intake mechanism 3 can be adjusted in the air intake box 31. When the air box 31 is inserted into the bottom of the bottom shell 1 and rotates, the locking plate 32 penetrates into the inner cavity of the locking ring 2, thereby completing the installation of the air intake mechanism 3. By setting the stepper motor 34, after the power is connected and the switch is turned on, the rotating rod 35 can drive the fan blades 36 to rotate, and the rotating rod 35 can be controlled to rotate slowly, thereby causing the fan blades 36 to rotate slowly and blow hot air into the inner cavity of the bottom shell 1, so that the exhaust air in the mine slowly flows into the inner cavity of the bottom shell 1.

[0046] The heat storage mechanism 5 includes a connecting pipe 53, the number of the connecting pipes 53 is several, and the several connecting pipes 53 are uniformly penetrated on the upper surface of the bottom shell 1, the top of the connecting pipe 53 is fixedly connected with a transfer pipe 52, both ends of the transfer pipe 52 are penetrated with a heat collecting pipe 51, and the bottom end of the heat collecting pipe 51 is provided with an exhaust hole. By setting the connecting pipe 53, the air in the inner cavity of the bottom shell 1 can be transferred to the inner cavity of the transfer pipe 52, and finally enter the inner cavity of the heat collecting pipe 51 from the two ends of the transfer pipe 52. The heat collecting pipe 51 The double-layer metal tank with a vacuum interlayer can absorb and store the heat in the exhaust air to a greater extent, and an exhaust hole is opened at the bottom to discharge the exhaust air that has absorbed heat in the inner cavity of the heat collecting pipe 51, so as to achieve the effect of heat preservation of the shaft by only using the heat in the exhaust air without directly using the exhaust air in the mine, thereby preventing the exhaust air from containing harmful gases or impurities and causing harm to personnel. The heat storage mechanism 5 also includes an exhaust box 56, which is fixedly connected to the upper surface of the bottom shell 1, and the inner wall of the exhaust box 56 is A sealing ring 57 is fixedly connected to the inner wall of the exhaust box 56, a breathable cover 58 is fixedly connected to the outer surface of the breathable cover 58, and the sealing gasket 511 is fixedly connected to the outer surface of the breathable cover 58. The sealing gasket 511 is composed of two annular rubber rings and the two annular rubber rings are squeezed and adapted to each other. An adsorption ring 59 is fixedly connected to the inner wall of the breathable cover 58, and a guide cover 510 is fixedly connected to the bottom end of the adsorption ring 59. The guide cover 510 is fixedly connected to the inner wall of the bottom shell 1, and the guide cover 510 is located directly above the air intake mechanism 3. By setting up the guide cover 510, the airflow generated by the air intake mechanism 3 can be guided, so that the airflow first enters the space where the adsorption ring 59 is located, and adheres to the dust and debris in the exhaust air, thereby preventing the dust and debris from entering the interior of the heat collecting tube 51 through the holes in the air cover 58, thereby increasing the service life of the device. By setting up the sealing gasket 511, the holes on the outer surface of the air cover 58 can be blocked when there is no airflow, and the sealing gasket 511 will be squeezed when the airflow is blown, thereby allowing the airflow to flow.

[0047] The lower surface of the heat collecting pipe 51 is fixedly connected with a connecting block 54, and the lower surface of the connecting block 54 is fixedly connected with a limiting cover 55. The heat conducting mechanism 6 includes a sliding pipe 61, and the sliding pipe 61 is slidably connected to the inner cavity of the heat collecting pipe 51. The outer surface of the sliding pipe 61 is fixedly connected with a connecting ring 62, and the inner cavity of the connecting ring 62 is fixedly connected with a top plate 63. The lower surface of the top plate 63 is fixedly connected with a sliding rod 64, and the sliding rod 64 is slidably connected to the inner cavity of the limiting cover 55. By setting the limiting cover 55, the exhaust gas discharged from the exhaust hole at the bottom of the heat collecting pipe 51 and the exhaust air discharged from the top opening of the exhaust box 56 can be guided to be directly discharged to the inner wall of the mine. By setting the sliding pipe 61, The sliding tube 61 slides in the inner cavity, and then when the air temperature in the sliding tube 61 and the inner cavity of the heat collecting tube 51 increases and expands, the sliding tube 61 moves upward. The sliding tube 61 adopts a double-layer vacuum glass tube to prevent heat loss. By setting a connecting ring 62, several sliding tubes 61 can be connected together, so that when the sliding tube 61 moves upward, it will drive the top plate 63 and the sliding rod 64 to move upward. The limiting cover 55 also plays a role in limiting the sliding rod 64. The bottom end of the sliding rod 64 is fixedly connected to a first blocking disk 65, and the first blocking disk 65 is squeezed and adapted with the inner ring of the sealing ring 57. The lower surface of the first blocking disk 65 is fixedly connected to a guide ball 66. The lower surface of the first blocking disk 65 is fixedly connected to A second support rod 67 is connected, and a friction ring 68 is fixedly connected to the bottom end of the second support rod 67. The friction ring 68 is frictionally matched with the inner ring of the adsorption ring 59. By setting the first blocking disk 65, the first blocking disk 65 can squeeze the sealing ring 57 when the sliding rod 64 does not move upward, thereby preventing the exhaust air from being discharged from the opening of the sealing ring 57. By setting the guide ball 66, the airflow entering the inner cavity of the breathable cover 58 can be guided to make the air flow evenly to the breathable cover 58. By setting the second support rod 67 and the friction ring 68, the dust and debris attached to the inner ring of the adsorption ring 59 can be scraped off after the sliding rod 64 moves upward, and discharged from the opening of the exhaust box 56 under the influence of the subsequent airflow, and then in The limiting cover 55 guides the flow and blows toward the inner wall of the mine. A first fixing ring 610 is fixedly connected to the inner wall of the sliding tube 61. A first spring 611 is fixedly connected to the lower surface of the first fixing ring 610. The bottom end of the first spring 611 is fixedly connected to the bottom surface of the inner cavity of the heat collecting tube 51. A blocking mechanism 69 is fixedly connected to the top of the sliding tube 61. The blocking mechanism 69 includes a round tube 691. The round tube 691 is fixedly connected to the top of the sliding tube 61. By setting the first spring 611, the sliding tube 61 can be pulled so that the sliding tube 61 is always subjected to a downward pulling force. When the air inside the sliding tube 61 is discharged and the air pressure is restored to balance, the first spring 611 will release the stored elastic potential energy.The sliding tube 61 is then quickly moved downward in the inner cavity of the heat collecting tube 51, and the characteristic of the spring that it will squeeze downward for a section is used to squeeze the internal air out from the top circular tube 691. A second fixing ring 692 is fixedly connected to the inner wall of the circular tube 691, and a second spring 693 is fixedly connected to the lower surface of the second fixing ring 692. The bottom end of the second spring 693 is fixedly connected to a second blocking disk 694, and a sealing ring 695 is fixedly connected to the outer surface of the second blocking disk 694. The sealing ring 695 is squeezed and adapted to the inner wall of the circular tube 691. By setting the second spring 693, the second blocking disk 694 can be pulled so that the second blocking disk 694 is always subjected to an upward pulling force, so that the second blocking disk 694 drives the sealing ring 695 to be tightly squeezed against the inner wall of the circular tube 691, thereby preventing the air at the bottom from being discharged, and the stiffness coefficient of the second spring 693 is larger than that of the first spring 611. Therefore, when the gas expands, the second spring 693 will not be squeezed and deformed. ,

[0048] The ejection mechanism 7 includes a third support rod 71, and the third support rod 71 is fixedly connected to the top of the first support rod 4. The top of the third support rod 71 is fixedly connected to a connection box 72, and the outer surface of the connection box 72 is fixedly connected to a soft ring 73. By setting the ejection mechanism 7, when the sliding tube 61 moves upward due to the expansion of the internal air, the second blocking disk 694 inside the circular tube 691 can be squeezed, so that the second blocking disk 694 moves downward to discharge the air flow. The upper surface of the connection box 72 is penetrated by an exhaust port 74, and the lower surface of the connection box 72 is penetrated by a straight pipe 75. There are several straight tubes 75, and the straight tubes 75 are evenly distributed. The straight tubes 75 are slidably connected to the inner cavity of the circular tube 691. The inner wall of the straight tube 75 is fixedly connected with a fourth support rod 76. The end of the fourth support rod 76 is fixedly connected with an extrusion rod 77. The bottom end of the extrusion rod 77 is extruded and adapted to the upper surface of the second blocking disk 694. By setting the extrusion rod 77, when the sliding tube 61 moves downward, the extrusion rod 77 can squeeze the upper surface of the second blocking disk 694, thereby moving the second blocking disk 694 downward, and finally causing the air inside the sliding tube 61 to be ejected.

[0049] Working principle: When in use, the operator installs the entire device at the place with the highest temperature in the mine, and makes the soft ring 73 tightly contact with the wall of the mine to isolate two spaces, and then connects the exhaust port 74 with a longer insulation hose, and installs the other end of the insulation hose at the place where the shaft needs to be insulated, and the installation of the device is completed; then the stepper motor 34 is connected to the power supply and the switch is turned on, so that the rotating rod 35 drives the fan blades 36 to rotate slowly, and the exhaust air is blown into the inner cavity of the bottom shell 1. Under the guidance of the guide cover 510, the exhaust air enters the inner cavity of the adsorption ring 59, and the dust and impurities in the air will be absorbed by the rough holes on the outer surface of the adsorption ring 59, and the hot air will enter the space formed by the bottom shell 1 and the guide cover 510 through the breathable cover 58, and finally enter the inner cavity of the transfer pipe 52 and the heat collecting pipe 51 through the connecting pipe 53. The temperature of the exhaust air will be absorbed by the heat collecting pipe 51, and the temperature in the inner cavity of the heat collecting pipe 51 will continue to rise, and then the exhaust air is discharged from the bottom The air is discharged through the air holes. As the temperature continues to rise, the air inside the sliding tube 61 and the heat collecting tube 51 continues to expand, thereby causing the sliding tube 61 to move upward, and finally causing the extrusion rod 77 to contact the upper surface of the second blocking disk 694, so that the second blocking disk 694 no longer blocks the circular tube 691. At this time, due to the instantaneous discharge of the internal gas, under the action of the first spring 611, the sliding tube 61 slides downward rapidly, so that the internal hot air is quickly ejected from the top circular tube 691 and enters the inner cavity of the connecting box 72, and finally enters the inner cavity of the shaft through the exhaust port 74 and the insulation hose; during the upward movement of the sliding tube 61, the sliding rod 64 drives the second support rod 67 and the friction ring 68 to move, and scrapes off the dust and impurities attached to the inner wall of the adsorption ring 59, and the airflow will be directly discharged from the top of the exhaust box 56, so that the dust is blown out and blown to the wall of the mine under the action of the limit cover 55, and finally achieves the effect of using the temperature in the exhaust air instead of directly using the exhaust air for heating, making the mine safer.

[0050] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A heat exchange device that uses waste heat from exhaust air for heat preservation, characterized in that: include: A bottom shell (1), and a locking ring (2) fixedly connected to the outer surface of the bottom shell (1); An air intake mechanism (3) for blowing exhaust air into the inner cavity of the bottom shell (1); A heat storage mechanism (5) for storing and transferring the residual heat in the exhaust air; A heat conducting mechanism (6) for transferring heat in the heat storage mechanism (5) and quickly discharging the heat; The ejection mechanism (7) is used to discharge the air heated by the exhaust air waste heat into the wellbore; The air intake mechanism (3) is movably connected to the bottom of the bottom shell (1) via a locking ring (2); a first support rod (4) is fixedly connected to the outer surface of the bottom shell (1); the heat storage mechanism (5) is arranged directly above the bottom shell (1) via the first support rod (4); the heat conduction mechanism (6) is slidably connected to the inner cavity of the heat storage mechanism (5); and the ejection mechanism (7) is arranged directly above the heat conduction mechanism (6) via the first support rod (4); The ejection mechanism (7) comprises a third support rod (71), the third support rod (71) being fixedly connected to the top end of the first support rod (4), the top end of the third support rod (71) being fixedly connected to a connection box (72), the outer surface of the connection box (72) being fixedly connected to a soft ring (73), the soft ring (73) being tightly in contact with the shaft wall of the mine, thereby isolating two spaces.

2. The heat exchange device using exhaust air waste heat for heat preservation according to claim 1, characterized in that: The air intake mechanism (3) comprises an air intake box (31), the outer surface of the air intake box (31) is fixedly connected to a retaining plate (32), the retaining plate (32) is slidably connected to the inner cavity of the retaining ring (2), the lower surface of the air intake box (31) is penetrated by a breathable net (33), the bottom surface of the inner cavity of the air intake box (31) is penetrated by a stepper motor (34), the output end of the stepper motor (34) is installed with a rotating rod (35) through a coupling, and the top end of the rotating rod (35) is fixedly connected to a fan blade (36).

3. The heat exchange device for heat preservation using exhaust air waste heat according to claim 2, characterized in that: The heat storage mechanism (5) comprises a connecting pipe (53), the number of the connecting pipes (53) being several, and the several connecting pipes (53) uniformly penetrate the upper surface of the bottom shell (1), the top end of the connecting pipe (53) is fixedly connected to a transfer pipe (52), both ends of the transfer pipe (52) are penetrated by a heat collecting pipe (51), and the bottom end of the heat collecting pipe (51) is provided with an exhaust hole.

4. The heat exchange device for heat preservation using exhaust air waste heat according to claim 3, characterized in that: The heat storage mechanism (5) further comprises an exhaust box (56), the exhaust box (56) being fixedly connected to the upper surface of the bottom shell (1), a sealing ring (57) being fixedly connected to the inner wall of the exhaust box (56), a breathable cover (58) being fixedly connected to the inner wall of the exhaust box (56), a sealing gasket (511) being fixedly connected to the outer surface of the breathable cover (58), the sealing gasket (511) being composed of two annular rubber rings which are squeezed and fitted to each other, an adsorption ring (59) being fixedly connected to the inner wall of the breathable cover (58), a flow guide cover (510) being fixedly connected to the bottom end of the adsorption ring (59), the flow guide cover (510) being fixedly connected to the inner wall of the bottom shell (1), and the flow guide cover (510) being located directly above the air intake mechanism (3).

5. The heat exchange device using exhaust air waste heat for heat preservation according to claim 4, characterized in that: The lower surface of the heat collecting tube (51) is fixedly connected to a connecting block (54), the lower surface of the connecting block (54) is fixedly connected to a limiting cover (55), the heat conducting mechanism (6) comprises a sliding tube (61), the sliding tube (61) is slidably connected to the inner cavity of the heat collecting tube (51), the outer surface of the sliding tube (61) is fixedly connected to a connecting ring (62), the inner cavity of the connecting ring (62) is fixedly connected to a top plate (63), the lower surface of the top plate (63) is fixedly connected to a sliding rod (64), and the sliding rod (64) is slidably connected to the inner cavity of the limiting cover (55).

6. The heat exchange device using exhaust air waste heat for heat preservation according to claim 5, characterized in that: The bottom end of the sliding rod (64) is fixedly connected to a first blocking disk (65), the first blocking disk (65) is squeezed and fitted with the inner ring of the sealing ring (57), the lower surface of the first blocking disk (65) is fixedly connected to a guide ball (66), the lower surface of the first blocking disk (65) is fixedly connected to a second support rod (67), the bottom end of the second support rod (67) is fixedly connected to a friction ring (68), and the friction ring (68) is frictionally fitted with the inner ring of the adsorption ring (59).

7. The heat exchange device using exhaust air waste heat for heat preservation according to claim 6, characterized in that: A first fixing ring (610) is fixedly connected to the inner wall of the sliding tube (61); a first spring (611) is fixedly connected to the lower surface of the first fixing ring (610); the bottom end of the first spring (611) is fixedly connected to the bottom surface of the inner cavity of the heat collecting tube (51); and a blocking mechanism (69) is fixedly connected to the top end of the sliding tube (61); the blocking mechanism (69) comprises a round tube (691); and the round tube (691) is fixedly connected to the top end of the sliding tube (61).

8. The heat exchange device using exhaust air waste heat for heat preservation according to claim 7, characterized in that: A second fixing ring (692) is fixedly connected to the inner wall of the circular tube (691), a second spring (693) is fixedly connected to the lower surface of the second fixing ring (692), a second blocking disk (694) is fixedly connected to the bottom end of the second spring (693), a sealing ring (695) is fixedly connected to the outer surface of the second blocking disk (694), and the sealing ring (695) is squeezed and adapted to the inner wall of the circular tube (691).

9. The heat exchange device using exhaust air waste heat for heat preservation according to claim 8, characterized in that: The upper surface of the connection box (72) is penetrated by an exhaust port (74), and the lower surface of the connection box (72) is penetrated by a straight tube (75). The number of the straight tubes (75) is several, and the several straight tubes (75) are evenly distributed. The straight tubes (75) are slidably connected to the inner cavity of the circular tube (691), and a fourth support rod (76) is fixedly connected to the inner wall of the straight tube (75). The end of the fourth support rod (76) is fixedly connected to an extrusion rod (77), and the bottom end of the extrusion rod (77) is extruded and adapted to the upper surface of the second blocking disk (694).

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