A new exhaust air full heat exchanger for industrial use

Abstract

The present invention relates to the technical field, and proposes an industrial fresh-exhaust total heat exchanger, comprising a chassis and a fresh air outlet, a fresh air inlet, an exhaust air outlet, an exhaust air inlet, a fresh air fan, an exhaust fan; an auxiliary alarm device, and a filter changer arranged on one side of the outer wall of the chassis; the present invention arranges the filter changer, and when the auxiliary alarm device releases the limiting operation on the primary filter plate, the partition is driven to cut off the internal space of the gas bin, and then the blocked primary filter plate is taken out, and at the same time, the spare filter plate is driven to move to the initial position of the primary filter plate, and after completing the replacement operation of the filter plate, the electric push rod is driven in the reverse direction to drive the partition to reset, and the gas circulation inside the gas bin is restored, so that the normal use of the device can be restored. Through the mutual cooperation between the above-mentioned parts, the replacement efficiency of the filter plate can be improved, and the replacement operation of the filter plate in the equipment can be completed without interrupting the operation of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of total heat exchangers, and specifically, to a fresh air and exhaust air total heat exchanger for industrial use. Background Art

[0002] A fresh air system is an independent air treatment system composed of a fresh air supply system and an exhaust air system. The fresh air system supplies fresh air into a closed room on one side with special equipment, and then discharges the air to the outside from the other side with special equipment. A "fresh air flow field" will be formed in the room to meet the need of fresh air ventilation in the room. The fresh air system is often applied in industry.

[0003] In the existing fresh air system, a total heat exchanger is used for energy recovery and temperature and humidity adjustment during use. Its core function is to achieve heat and humidity exchange between fresh air and exhaust air through heat exchange. However, during the use of the total heat exchanger, the filter plate is used to filter the air, and the dirt filtered down is easy to block the filter plate. Therefore, when the filter screen is blocked during the use of the equipment, the staff often needs to stop the equipment for replacement operation, resulting in the fresh air system being unable to operate normally and the polluted air being unable to be discharged. Since the fresh air systems used in factories are generally large-scale equipment, shutdown maintenance increases the cost greatly. Therefore, we can provide a fresh air and exhaust air total heat exchanger for industrial use to solve the above problems. Summary of the Invention

[0004] Aiming at the problem that the filter screen used for filtering inside the total heat exchanger needs to stop the equipment for replacement during use in the prior art, the purpose of the present invention is to provide a fresh air and exhaust air total heat exchanger for industrial use.

[0005] The technical solution of the present invention is as follows: A fresh air and exhaust air total heat exchanger for industrial use includes a chassis and a fresh air outlet provided on one side of the outer wall of the chassis. A fresh air inlet is also provided on the outer wall of the same side of the chassis. The fresh air outlet and the fresh air inlet are located at two ends of the outer wall of the same side of the chassis that are far away from each other. An exhaust air outlet is provided on the other side of the outer wall of the chassis, and an exhaust air inlet is also provided on the other side of the outer wall of the chassis. The exhaust air outlet and the exhaust air inlet are located at two ends of the outer wall of the other side of the chassis that are far away from each other. A fresh air blower corresponding to the fresh air inlet is provided on one side inside the chassis, and an exhaust air blower corresponding to the exhaust air inlet is provided on the other side inside the chassis; an auxiliary warning device, the auxiliary warning device is connected to the fresh air inlet and the fresh air blower, and the auxiliary warning device is used to assist in replacing the filter plate in front of the fresh air blower; a filter changer, the filter changer is connected to the auxiliary warning device, and the filter changer is used to improve the efficiency when replacing the filter plate.

[0006] As a further solution of the present invention: The auxiliary warning device includes an air chamber fixedly connected to the input end of the fresh air fan. The other end of the air chamber is fixedly connected to the output end of the fresh air inlet. An initial filter plate is movably arranged inside the air chamber. A limiting groove extending to the surface of the initial filter plate is arranged inside the initial filter plate. Support rods fixedly connected to the air chamber are symmetrically arranged on one side of the initial filter plate. A sleeve is fixedly connected between the two groups of support rods. A rotating shaft is rotatably connected inside the sleeve. A fan blade is fixedly connected to the side of the rotating shaft away from the initial filter plate. A cross bar is fixedly connected to the other side of the sleeve.

[0007] As a further solution of the present invention: The auxiliary warning device further includes ejector rods symmetrically and movably arranged at both ends inside the cross bar. A limiting disc is movably arranged inside the sleeve. A return spring is arranged between the limiting disc and the sleeve. Two ends of the return spring are respectively fixedly connected to the sleeve and the limiting disc. An inclined surface part is arranged on the inner wall of the limiting disc.

[0008] As a further solution of the present invention: The filter changer includes a partition chamber fixedly connected to one end of the outer wall of the air chamber. An electric push rod is fixedly installed on one side of the outer wall of the partition chamber. A partition plate is movably arranged inside the partition chamber. A fixing block extending to the surface of the partition chamber is fixedly connected to the outer wall of the partition plate. The output end of the electric push rod is connected to the fixing block. A closed sliding groove extending to the surface of the partition chamber is arranged inside the partition chamber. The closed sliding groove matches the fixing block.

[0009] As a further solution of the present invention: The filter changer further includes a replacement chamber fixedly connected to the outer wall of the air chamber at the same end as the partition chamber. The replacement chamber is located between the partition chamber and the fresh air fan. An installation groove is arranged at one end of the inner wall of the replacement chamber. A plurality of groups of replacement springs are equidistantly arranged inside the installation groove. A moving sliding groove is arranged at one end of the installation groove. A transmission strip is movably arranged inside the moving sliding groove. A compensation strip is fixedly connected to the top end of one side of the transmission strip. A spare installation groove is arranged on one side of the moving sliding groove. A plurality of groups of spare filter plates are equidistantly arranged inside the spare installation groove. A pushing spring is fixedly connected to one side of the inner wall of the spare installation groove. The other side of the pushing spring is fixedly connected to a replacement push plate located between the spare filter plate and the pushing spring. The installation groove, the moving sliding groove and the spare installation groove communicate with each other.

[0010] As a further solution of the present invention: The filter changer further includes an arc-shaped groove opened at the bottom of the air chamber and extending to the inner bottom end of the air chamber. A gear is rotatably connected inside the arc-shaped groove. A worm is fixedly connected to the top of the gear. The worm extends to the top of the air chamber. A transmission block is fixedly connected to the outer wall of the primary filter plate. A tooth surface engaged with the gear is provided on one side of the outer wall of the transmission strip.

[0011] As a further solution of the present invention: The filter changer further includes a middle avoidance groove provided on one side of the inner wall of the air chamber. A bottom avoidance groove matching the supplementary strip is provided at the bottom of the middle avoidance groove. The middle avoidance groove matches the supplementary strip. A top avoidance groove penetrating the top of the air chamber is provided at the inner top end of the air chamber. A replacement guiding groove matching the primary filter plate is provided on the other side of the inner wall of the air chamber.

[0012] As a further solution of the present invention: A spiral tooth groove matching the worm is provided on the outer wall of the transmission block.

[0013] The working principle and beneficial effects of the present invention are as follows:

[0014] 1. By setting an auxiliary warning device to introduce fresh air through the fresh air fan. When the air flow enters the interior of the air chamber through the fresh air inlet, when the primary filter plate is working properly and effectively filtering large particle impurities, the induced air flow blows the fan blades to rotate. The rotation of the fan blades drives the rotating shaft to rotate. The rotation of the rotating shaft drives the cross bar to rotate. When the cross bar rotates, the ejector rod inside it is thrown out by centrifugal force to squeeze the inclined surface, so that the limit disk moves horizontally into the limit groove to limit the movement of the primary filter plate and improve the stability of the primary filter plate during the filtering operation.

[0015] 2. By setting a return spring, when the primary filter plate is gradually blocked after a period of use, resulting in a decrease in the fresh air passing efficiency and it is difficult to continue to use, the flow rate generated by the air flow induced by the fresh air fan will also decrease. At this time, the centrifugal force generated by the rotation of the fan blades is difficult to drive the ejector rod to squeeze the inclined surface. At this time, the limit disk will move in the reverse direction under the return action of the return spring and separate from the limit groove, that is, the limit operation on the primary filter plate is released, and then the primary filter plate can be replaced through the filter changer.

[0016] 3. By setting up a filter replacement device, after the auxiliary warning device releases the limit operation on the primary filter plate, the electric push rod is operated to drive the partition to cut off the internal space of the air chamber, separating the interior of the air chamber from the inlet of the fresh air inlet. Then, the blocked primary filter plate is removed through the top relief groove. At the same time, the rotation of the worm drives the displacement of the compensation strip, and the compensation strip will push the spare filter plate at the top of the transmission strip to move to the initial position of the primary filter plate under the reset action of multiple replacement springs. Moreover, the transmission block meshes with the worm for subsequent use. After completing the replacement operation of the filter plate, the electric push rod is reversely driven to drive the partition to reset, restoring the gas flow inside the air chamber, and the normal use of the device can be restored. Through the mutual cooperation of the above parts, the replacement efficiency of the filter plate can be improved, and the replacement operation of the filter plate inside the device can be completed without interrupting the operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 1 is the overall schematic diagram of the present invention;

[0019] Figure 2 is the internal structure diagram of the present invention;

[0020] Figure 3 is the schematic diagram of the auxiliary warning device and the filter replacement device of the present invention;

[0021] Figure 4 is the schematic diagram of the sectional structure of the air chamber and the partition of the present invention;

[0022] Figure 5 is the exploded sectional view of the sleeve of the present invention;

[0023] Figure 6 is the exploded sectional view of the limit disk of the present invention;

[0024] Figure 7 is the schematic diagram of the air chamber of the present invention;

[0025] Figure 8 is the sectional schematic diagram of the air chamber of the present invention;

[0026] Figure 9 is the schematic diagram of the filter replacement device of the present invention;

[0027] Figure 10 is of the present invention Figure 9 enlarged view at A in

[0028] In the figure: 1, chassis; 2, fresh air outlet; 3, fresh air inlet; 4, exhaust air outlet; 5, exhaust air inlet; 6, fresh air fan; 7, exhaust air fan; 801, air chamber; 802, fan blade; 803, primary filter plate; 804, sleeve; 805, support rod; 806, limit disc; 807, inclined surface part; 808, return spring; 809, rotating shaft; 810, cross bar; 811, ejector rod; 812, limit groove; 901, isolation chamber; 902, electric push rod; 903, closed chute; 904, replacement chamber; 905, partition board; 906, fixed block; 907, spare filter plate; 908, replacement push plate; 909, worm; 910, compensation strip; 911, transmission block; 912, tooth engaging surface; 913, gear; 914, transmission strip; 915, replacement spring; 916, installation groove; 917, spare installation groove; 918, moving chute; 919, arc groove; 920, bottom avoidance groove; 921, replacement guide groove; 922, top avoidance groove; 923, middle avoidance groove; 924, propulsion spring. Detailed implementation manners

[0029] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

[0030] Embodiment 1

[0031] Please refer to Figures 1 to 10 , this embodiment provides an industrial fresh air and exhaust air total heat exchanger, including a chassis 1 and a fresh air outlet 2 provided on one side of the outer wall of the chassis 1. A fresh air inlet 3 is also provided on the outer wall of the same side of the chassis 1. The fresh air outlet 2 and the fresh air inlet 3 are located at two ends of the outer wall of the same side of the chassis 1 that are far away from each other. An exhaust air outlet 4 is provided on the other side of the outer wall of the chassis 1, and an exhaust air inlet 5 is also provided on the other side of the outer wall of the chassis 1. The exhaust air outlet 4 and the exhaust air inlet 5 are located at two ends of the outer wall of the other side of the chassis 1 that are far away from each other. A fresh air fan 6 corresponding to the fresh air inlet 3 is provided on one side inside the chassis 1, and an exhaust air fan 7 corresponding to the exhaust air inlet 5 is provided on the other side inside the chassis 1. An auxiliary warning device, the auxiliary warning device is connected to the fresh air inlet 3 and the fresh air fan 6, and the auxiliary warning device is used to replace the filter plate in front of the auxiliary fresh air fan 6; a filter changer, the filter changer is connected to the auxiliary warning device, and the filter changer is used to improve the efficiency when replacing the filter plate;

[0032] The auxiliary warning device includes an air chamber 801 fixedly connected to the input end of the fresh air fan 6. The other end of the air chamber 801 is fixedly connected to the output end of the fresh air inlet 3. An initial filter plate 803 is movably arranged inside the air chamber 801. A limiting groove 812 extending to the surface of the initial filter plate 803 is arranged inside the initial filter plate 803. On one side of the initial filter plate 803, support rods 805 fixedly connected to the air chamber 801 are symmetrically arranged. A sleeve 804 is fixedly connected between the two groups of support rods 805. A rotating shaft 809 is rotatably connected inside the sleeve 804. A fan blade 802 is fixedly connected to the side of the rotating shaft 809 away from the initial filter plate 803. A cross bar 810 is fixedly connected to the other side of the sleeve 804. The auxiliary warning device further includes ejector rods 811 symmetrically and movably arranged at both ends inside the cross bar 810. A limiting disc 806 is movably arranged inside the sleeve 804. A return spring 808 is arranged between the limiting disc 806 and the sleeve 804. Both ends of the return spring 808 are fixedly connected to the sleeve 804 and the limiting disc 806 respectively. An inclined surface part 807 is arranged on the inner wall of the limiting disc 806;

[0033] First, a heat exchange core is arranged inside the chassis 1. First, fresh air outdoors is introduced through the fresh air inlet 3, and then the treated fresh air is conveyed to each area indoors through the fresh air outlet 2. The dirty air indoors is collected through the exhaust air inlet 5, and the air to be discharged indoors is guided into the chassis 1. These airs can exchange energy with the fresh air inside the chassis 1. Finally, after passing through the chassis 1, the indoor dirty air is discharged to the outside through the exhaust air outlet 4, thus completing the replacement process of indoor and outdoor air;

[0034] In this process, fresh air is introduced through the fresh air fan 6. When the air flow enters the inside of the air chamber 801 through the fresh air inlet 3, when the initial filter plate 803 is normally used to effectively filter large particle impurities, the induced air flow blows the fan blade 802 to rotate. The rotation of the fan blade 802 drives the rotating shaft 809 to rotate. The rotation of the rotating shaft 809 drives the cross bar 810 to rotate. When the cross bar 810 rotates, the ejector rod 811 inside it is thrown out by centrifugal force to squeeze the inclined surface part 807, so that the limiting disc 806 moves horizontally into the inside of the limiting groove 812 to limit the movement of the initial filter plate 803 and improve the stability of the initial filter plate 803 during the filtering work;

[0035] When the initial filter plate 803 is used for a period of time and gradually becomes blocked, resulting in a decrease in the fresh air passing efficiency and it is difficult to continue to be used, the flow rate generated by the air flow induced by the fresh air fan 6 will also decrease. At this time, the centrifugal force generated by the rotation of the fan blade 802 is difficult to drive the ejector rod 811 to squeeze the inclined surface part 807. At this time, the limiting disc 806 will move in the reverse direction under the reset action of the return spring 808 to separate from the limiting groove 812, that is, the limiting operation on the initial filter plate 803 is released, and then the initial filter plate 803 can be replaced through the filter changer.

[0036] Embodiment 2

[0037] The filter changer includes a partition chamber 901 fixedly connected to one end of the outer wall of the air chamber 801. One side of the outer wall of the partition chamber 901 is fixedly equipped with an electric push rod 902. A partition plate 905 is movably arranged inside the partition chamber 901. A fixed block 906 extending to the surface of the partition chamber 901 is fixedly connected to the outer wall of the partition plate 905. The output end of the electric push rod 902 is connected to the fixed block 906. A closed sliding groove 903 extending to the surface of the partition chamber 901 is arranged inside the partition chamber 901. The closed sliding groove 903 matches the fixed block 906. The filter changer further includes a replacement chamber 904 fixedly connected to the same end of the outer wall of the air chamber 801 as the partition chamber 901. The replacement chamber 904 is located between the partition chamber 901 and the fresh air fan 6. An installation groove 916 is arranged at one end of the inner wall of the replacement chamber 904. A plurality of groups of replacement springs 915 are equidistantly arranged inside the installation groove 916. A moving sliding groove 918 is arranged at one end of the installation groove 916. A transmission strip 914 is movably arranged inside the moving sliding groove 918. A compensation strip 910 is fixedly connected to the top end of one side of the transmission strip 914. A spare installation groove 917 is arranged on one side of the moving sliding groove 918. A plurality of groups of spare filter plates 907 are equidistantly arranged inside the spare installation groove 917. A propulsion spring 924 is fixedly connected to one side of the inner wall of the spare installation groove 917. The other side of the propulsion spring 924 is fixedly connected to a replacement push plate 908 located between the spare filter plate 907 and the propulsion spring 924. The installation groove 916, the moving sliding groove 918 and the spare installation groove 917 communicate with each other;

[0038] The filter changer further includes an arc-shaped groove 919 opened at the bottom of the air chamber 801 and extending to the inner bottom end of the air chamber 801. A gear 913 is rotatably connected inside the arc-shaped groove 919. A worm 909 is fixedly connected to the top of the gear 913. The worm 909 extends to the top of the air chamber 801. A transmission block 911 is fixedly connected to the outer wall of the primary filter plate 803. A tooth engaging surface 912 meshing with the gear 913 is arranged on one side of the outer wall of the transmission strip 914; The filter changer further includes a middle avoidance groove 923 arranged on one side of the inner wall of the air chamber 801. A bottom avoidance groove 920 matching the compensation strip 910 is arranged at the bottom of the middle avoidance groove 923. The middle avoidance groove 923 matches the compensation strip 910. A top avoidance groove 922 penetrating the top of the air chamber 801 is arranged at the inner top end of the air chamber 801. A replacement guiding groove 921 matching the primary filter plate 803 is arranged on the other side of the inner wall of the air chamber 801; A spiral tooth groove matching the worm 909 is arranged on the outer wall of the transmission block 911;

[0039] The outer walls of multiple sets of spare filter plates 907 are also fixedly installed with transmission blocks 911. The top avoidance groove 922 allows the transmission blocks 911 and the primary filter plate 803 to move. The inside of the sealing bin 901 and the air bin 801 communicate with each other. After the auxiliary warning device releases the limiting operation on the primary filter plate 803, the electric push rod 902 is operated to push the fixed block 906 to move inside the closed sliding groove 903. The movement of the closed sliding groove 903 drives the partition plate 905 to move synchronously and enter the inside of the air bin 801 until the partition plate 905 cuts off the internal space of the air bin 801, separating the inside of the air bin 801 from the inlet of the fresh air inlet 3. Then, by rotating the worm 909, the transmission block 911 is driven to move upward. The upward movement of the transmission block 911 drives the primary filter plate 803 to move upward synchronously, and the blocked primary filter plate 803 is taken out through the top avoidance groove 922. At the same time, the rotation of the worm 909 drives the gear 913 to rotate synchronously. The rotation of the gear 913 drives the transmission strip 914 to move integrally inside the moving sliding groove 918 through the tooth engagement surface 912 and squeezes multiple sets of replacement springs 915. After the primary filter plate 803 is completely pushed out of the inside of the air bin 801, the supplementary strip 910 and the transmission strip 914 are attached to the other end of the inner wall of the moving sliding groove 918 under the drive of the gear 913. At this time, the replacement push plate 908 squeezes multiple sets of spare filter plates 907 under the reset action of the pushing spring 924, causing a set of spare filter plates 907 close to the supplementary strip 910 to move to the top of the transmission strip 914. Then, the force on the worm 909 is released. The supplementary strip 910 will push the spare filter plate 907 on the top of the transmission strip 914 to the initial position of the primary filter plate 803 under the reset action of multiple sets of replacement springs 915, and the transmission block 911 meshes with the worm 909 for subsequent use. After completing the replacement operation of the filter plate, the electric push rod 902 is reversely driven to drive the partition plate 905 to reset, restoring the gas flow inside the air bin 801, and the normal use of the device can be restored. Through the mutual cooperation of the above parts, the replacement efficiency of the filter plate can be improved, and the replacement operation of the filter plate inside the device can be completed without interrupting the operation of the device.

[0040] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An industrial fresh air exhaust total heat exchanger, comprising a chassis (1) and a fresh air outlet (2) arranged on one side of an outer wall of the chassis (1), the outer wall on the same side of the chassis (1) is also provided with a fresh air inlet (3), the fresh air outlet (2) and the fresh air inlet (3) are located at two ends of the outer wall on the same side of the chassis (1) that are away from each other, the other side of the outer wall of the chassis (1) is provided with an exhaust outlet (4), the other side of the outer wall of the chassis (1) is also provided with an exhaust inlet (5), the exhaust outlet (4) and the exhaust inlet (5) are located at two ends of the outer wall on the other side of the chassis (1) that are away from each other, a fresh air fan (6) corresponding to the fresh air inlet (3) is provided on one side of the interior of the chassis (1), and an exhaust fan (7) corresponding to the exhaust inlet (5) is provided on the other side of the interior of the chassis (1), characterized in that ； an auxiliary alarm device, the auxiliary alarm device being connected to the fresh air inlet (3) and the fresh air fan (6), the auxiliary alarm device being used to assist in replacing the filter plate at the front end of the fresh air fan (6); A filter changer, the filter changer comprising a sealing chamber (901), an electric push rod (902), a closed slide groove (903), a replacement chamber (904), a partition (905), a fixed block (906), a spare filter plate (907), a replacement push plate (908), a worm (909), a filling strip (910), a transmission block (911), a tooth surface (912), a gear (913), a transmission strip (914), a replacement spring (915), a mounting groove (916), a spare mounting groove (917), a movable slide groove (918), an arc groove (919), a bottom avoidance groove (920), a replacement guide groove (921), a top avoidance groove (922), a middle avoidance groove (923), and a propulsion spring (924); the filter changer is connected to the auxiliary warning device, and the filter changer is used to improve the efficiency of replacing the filter plate; The auxiliary warning device comprises an air bin (801) fixedly connected to the input end of the fresh air fan (6), the other end of the air bin (801) being fixed to the output end of the fresh air inlet (3), a primary filter plate (803) being movably arranged inside the air bin (801), a limiting groove (812) extending to the surface of the primary filter plate (803) being arranged inside the primary filter plate (803), a support rod (805) fixedly connected to the air bin (801) being symmetrically arranged on one side of the primary filter plate (803), a sleeve (804) being fixedly connected between two groups of the support rods (805), a rotating shaft (809) being rotatably connected inside the sleeve (804), a fan blade (802) being fixedly connected to the side of the rotating shaft (809) away from the primary filter plate (803), and a cross bar (810) being fixedly connected to the other side of the sleeve (804); The auxiliary warning device also includes push rods (811) symmetrically and movably arranged at the two ends of the cross bar (810), a limit plate (806) is movably arranged inside the sleeve (804), a return spring (808) is arranged between the limit plate (806) and the sleeve (804), the two ends of the return spring (808) are respectively fixedly connected to the sleeve (804) and the limit plate (806), and the inner wall of the limit plate (806) is provided with an inclined portion (807).

2. The industrial fresh exhaust air total heat exchanger according to claim 1, characterized in that: The filter changer comprises a sealing chamber (901) fixedly connected to one end of the outer wall of the gas chamber (801), an electric push rod (902) is fixedly installed on one side of the outer wall of the sealing chamber (901), a partition (905) is movably arranged inside the sealing chamber (901), the outer wall of the partition (905) is fixedly connected to a fixed block (906) extending to the surface of the sealing chamber (901), the output end of the electric push rod (902) is connected to the fixed block (906), and a closed slide groove (903) extending to the surface of the sealing chamber (901) is arranged inside the sealing chamber (901), and the closed slide groove (903) matches the fixed block (906).

3. The industrial fresh exhaust air total heat exchanger according to claim 2, characterized in that: The filter changer further comprises a replacement bin (904) fixedly connected to the same end of the outer wall of the air bin (801) as the isolation bin (901); the replacement bin (904) is located between the isolation bin (901) and the fresh air blower (6); a mounting groove (916) is provided at one end of the inner wall of the replacement bin (904); a plurality of groups of replacement springs (915) are equidistantly provided inside the mounting groove (916); a movable slide groove (918) is provided at one end of the mounting groove (916); a transmission bar (914) is movably provided inside the movable slide groove (918); the transmission bar (914) A filling strip (910) is fixedly connected to one end of the top of the movable slide groove (918), a spare groove (917) is arranged on one side of the movable slide groove (918), and a plurality of groups of spare filter plates (907) are arranged at equal distances inside the spare groove (917), a propulsion spring (924) is fixedly connected to one side of the inner wall of the spare groove (917), and a replacement push plate (908) located between the spare filter plate (907) and the propulsion spring (924) is fixedly connected to the other side of the propulsion spring (924), and the installation groove (916), the movable slide groove (918) and the spare groove (917) are interconnected.

4. The industrial fresh exhaust air total heat exchanger according to claim 3, characterized in that: The filter changer further comprises an arcuate groove (919) which is opened at the bottom of the gas bin (801) and extends to the bottom end of the gas bin (801); a gear (913) is rotatably connected to the inside of the arcuate groove (919); a worm (909) is fixedly connected to the top of the gear (913); the worm (909) extends to the top of the gas bin (801); a transmission block (911) is fixedly connected to the outer wall of the primary filter plate (803); and a tooth surface (912) which meshes with the gear (913) is provided on one side of the outer wall of the transmission bar (914).

5. The industrial fresh exhaust air total heat exchanger according to claim 4, characterized in that: The filter changer further comprises a middle avoidance groove (923) arranged on one side of the inner wall of the gas bin (801); a bottom avoidance groove (920) matching the replacement strip (910) is arranged at the bottom of the middle avoidance groove (923); the middle avoidance groove (923) matches the replacement strip (910); a top avoidance groove (922) penetrating the gas bin (801) is arranged at the inner top of the gas bin (801); and a replacement guide groove (921) matching the primary filter plate (803) is arranged on the other side of the inner wall of the gas bin (801).

6. The industrial fresh exhaust air total heat exchanger according to claim 5, characterized in that: The outer wall of the transmission block (911) is provided with a worm-shaped tooth groove that matches the worm (909).

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