Industrial fresh exhaust total heat exchanger

Abstract

The invention relates to the technical field, and provides an industrial fresh air and exhaust air total heat exchanger which comprises a case, and a fresh air outlet, a fresh air inlet, an exhaust air outlet, an exhaust air inlet, a fresh air fan and an exhaust fan which are arranged on one side of the outer wall of the case, an auxiliary warning indicator and a filter are replaced; according to the invention, by arranging the filter changer, when the auxiliary warning indicator relieves the limiting operation on the primary filter plate, the partition plate is driven to cut off the internal space of the gas bin, then the blocked primary filter plate is taken out, and meanwhile, the standby filter plate is driven to move to the initial position of the primary filter plate, so that after the replacement operation on the filter plate is completed, the filter plate is replaced; and the electric push rod is reversely driven to drive the partition plate to reset, gas circulation in the gas bin is recovered, normal use of the device can be recovered, through mutual cooperation of the 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 under the condition that the operation of the equipment is not interrupted.

Description

Technical Field

[0001] The present invention relates to the technical field of total heat exchangers, and in particular to an industrial fresh exhaust air total heat exchanger. Background Art

[0002] The fresh air system is an independent air treatment system composed of an air supply system and an exhaust system. The fresh air system uses special equipment to supply fresh air into the room on one side of a closed room, and then exhausts it to the outside from the other side by special equipment. A "fresh air flow field" will be formed indoors, thereby meeting the needs of indoor fresh air ventilation. The fresh air system is often needed in industry.

[0003] The existing fresh air system uses a total heat exchanger to recover energy and adjust temperature and humidity during use. Its core function is to achieve heat and humidity exchange between fresh air and exhaust air through heat exchange. However, the total heat exchanger filters the air through a filter plate during use, and the filtered dirt can easily clog the filter plate. Therefore, when the filter is clogged during the use of the equipment, the staff often needs to shut down the equipment for replacement, which results 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, the shutdown maintenance increases the cost. For this reason, I can provide an industrial fresh exhaust air total heat exchanger to solve the above problems. Summary of the invention

[0004] In view of the problem in the prior art that the filter screen inside the total heat exchanger used for filtering becomes clogged during use and the equipment needs to be shut down for replacement, the purpose of the present invention is to provide a new exhaust air total heat exchanger for industrial use.

[0005] The technical solution of the present invention is as follows: an industrial fresh-exhaust total heat exchanger comprises a chassis and a fresh air outlet arranged on one side of an outer wall of the chassis, the outer wall on the same side of the chassis is also provided with a fresh air inlet, the fresh air outlet and the fresh air inlet are located at two ends of the outer wall on the same side of the chassis, which are far away from each other, the other side of the outer wall of the chassis is provided with an exhaust outlet, the other side of the outer wall of the chassis is also provided with an exhaust inlet, the exhaust outlet and the exhaust inlet are located at two ends of the outer wall on the other side of the chassis, which are far away from each other, a fresh air fan corresponding to the fresh air inlet is arranged on one side of the interior of the chassis, and an exhaust fan corresponding to the exhaust inlet is arranged on the other side of the interior of the chassis; an auxiliary alarm, the auxiliary alarm is connected to the fresh air inlet and the fresh air fan, the auxiliary alarm is used to assist the replacement of the filter plate at the front end of the fresh air fan; a filter changer, the filter changer is connected to the auxiliary alarm, 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 bin fixedly connected to the input end of the fresh air fan, the other end of the air bin is fixed to the output end of the fresh air inlet, a primary filter plate is movably arranged inside the air bin, a limiting groove extending to the surface of the primary filter plate is arranged inside the primary filter plate, support rods fixedly connected to the air bin are symmetrically arranged on one side of the primary filter plate, a sleeve is fixedly connected between two groups of the 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 primary filter plate, and 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 also includes top rods symmetrically and movably arranged at both ends of the cross bar, a limit plate is movably arranged inside the sleeve, a return spring is arranged between the limit plate and the sleeve, the two ends of the return spring are respectively fixedly connected to the sleeve and the limit plate, and the inner wall of the limit plate is provided with a sloped portion.

[0008] As a further solution of the present invention: the filter changer includes a sealing chamber fixedly connected to one end of the outer wall of the air bin, an electric push rod is fixedly installed on one side of the outer wall of the sealing chamber, a partition is movably provided inside the sealing chamber, the outer wall of the partition is fixedly connected with a fixed block extending to the surface of the sealing chamber, the output end of the electric push rod is connected to the fixed block, and the interior of the sealing chamber is provided with a closed slide groove extending to the surface of the sealing chamber, and the closed slide groove matches the fixed block.

[0009] As a further scheme of the present invention: the filter changer also includes a replacement bin fixedly connected to the sealing bin at the same end of the outer wall of the air bin, the replacement bin being located between the sealing bin and the fresh air fan, a mounting groove being provided at one end of the inner wall of the replacement bin, a plurality of replacement springs being equidistantly provided inside the mounting groove, a movable slide groove being provided at one end of the mounting groove, a transmission bar being movably provided inside the movable slide groove, a filling bar being fixedly connected at the top end of the transmission bar, a spare slot being provided on one side of the movable slide groove, a plurality of spare filter plates being equidistantly provided inside the spare slot, a thrust spring being fixedly connected to one side of the inner wall of the spare slot, a replacement push plate being fixedly connected to the other side of the thrust spring and the mounting slot, the movable slide groove and the spare slot being connected to each other.

[0010] As a further solution of the present invention: the filter changer also includes an arcuate groove opened at the bottom of the air bin and extending to the bottom end of the air bin, the arcuate groove is rotatably connected to a gear, the top of the gear is fixedly connected to a worm, the worm extends to the top of the air bin, the outer wall of the primary filter plate is fixedly connected to a transmission block, and one side of the outer wall of the transmission bar is provided with a tooth surface that meshes with the gear.

[0011] As a further solution of the present invention: the filter changer also includes a middle avoidance groove arranged on one side of the inner wall of the air bin, the bottom of the middle avoidance groove is provided with a bottom avoidance groove matching the filling strip, the middle avoidance groove matches the filling strip, the inner top end of the air bin is provided with a top avoidance groove running through the air bin, and the other side of the inner wall of the air bin is provided with a replacement guide groove matching the primary filter plate.

[0012] As a further solution of the present invention: the outer wall of the transmission block is provided with a worm-shaped tooth groove matching the worm.

[0013] The working principle and beneficial effects of the present invention are: 1. By setting an auxiliary alarm, fresh air is introduced through a fresh air fan. When the airflow enters the interior of the air chamber through the fresh air inlet, when the primary filter plate is used normally to effectively filter large particles, the fan blades are blown by the airflow, and the rotation of the fan blades drives the shaft to rotate. The rotation of the shaft drives the crossbar to rotate. When the crossbar rotates, the top rod inside it is thrown out by centrifugal force to squeeze the inclined surface, so that the limit plate moves horizontally into the interior of the limit slot to limit the movement of the primary filter plate, thereby improving the stability of the primary filter plate during filtering; 2. By setting a reset spring, when the primary filter plate is gradually blocked after a period of use, resulting in reduced fresh air passing efficiency and difficulty in continued use, the flow rate generated by the airflow driven 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 top rod to squeeze the inclined surface. At this time, the limit plate will move in the opposite direction under the reset action of the reset spring to separate from the limit groove, that is, the limit operation on the primary filter plate is released, and the primary filter plate can be replaced by the filter changer; 3. By setting up a filter changer, when the auxiliary alarm 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 bin, so that the interior of the air bin is separated from the entrance of the fresh air inlet, and then the blocked primary filter plate is taken out through the top avoidance groove. At the same time, the rotation of the worm drives the filling bar to move, and the filling bar will push the spare filter plate on the top of the transmission bar to the initial position of the primary filter plate under the reset action of multiple sets of replacement springs, and the transmission block and the worm are engaged with each other for subsequent use. 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 air bin is restored, so that the normal use of the device can be restored. Through the mutual cooperation between the above 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0015] Figure 1 It is an overall schematic diagram of the present invention; Figure 2 It is the internal structure diagram of the present invention; Figure 3 It is a schematic diagram of the auxiliary warning device and filter changer structure of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the gas bin and the partition of the present invention; Figure 5 It is a cross-sectional exploded view of the sleeve of the present invention; Figure 6 It is a cross-sectional exploded view of the limit plate of the present invention; Figure 7 It is a schematic diagram of the gas storage structure of the present invention; Figure 8 It is a schematic diagram of the cross-sectional structure of the gas bin of the present invention; Fig. 9 It is a schematic diagram of the filter changer structure of the present invention; Fig.10 For the present invention Fig. 9 Enlarged view of point A in the middle.

[0016] 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 fan; 801, air chamber; 802, fan blade; 803, primary filter plate; 804, sleeve; 805, support rod; 806, limit plate; 807, inclined portion; 808, return spring; 809, rotating shaft; 810, cross bar; 811, top rod; 812, limit slot; 901, partition chamber; 902, electric push rod; 903, closed slide; 904, replacement Bin; 905, partition; 906, fixing block; 907, spare filter plate; 908, replacement push plate; 909, worm; 910, filling strip; 911, transmission block; 912, tooth surface; 913, gear; 914, transmission strip; 915, replacement spring; 916, installation groove; 917, spare installation groove; 918, movable slide groove; 919, arc groove; 920, bottom avoidance groove; 921, replacement guide groove; 922, top avoidance groove; 923, middle avoidance groove; 924, propulsion spring. DETAILED DESCRIPTION

[0017] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Example 1 See also Figures 1 to 10 , the present embodiment provides an industrial fresh-exhaust total heat exchanger, comprising a chassis 1 and a fresh air outlet 2 arranged on one side of the outer wall of the chassis 1, a fresh air inlet 3 is also arranged on the outer wall on 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 on the same side of the chassis 1 that are far away from each other, an exhaust outlet 4 is arranged on the other side of the outer wall of the chassis 1, an exhaust air inlet 5 is also arranged 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 on 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 arranged on one side of the interior of the chassis 1, an exhaust air fan 7 corresponding to the exhaust air inlet 5 is arranged on the other side of the interior of the chassis 1, an auxiliary alarm, the auxiliary alarm is connected to the fresh air inlet 3 and the fresh air fan 6, the auxiliary alarm is used to replace the filter plate at the front end of the auxiliary fresh air fan 6; filter changer, the filter changer is connected to the auxiliary alarm, and the filter changer is used to improve the efficiency when replacing the filter plate; The auxiliary warning device includes an air bin 801 fixedly connected to the input end of the fresh air blower 6, the other end of the air bin 801 is fixed to the output end of the fresh air inlet 3, a primary filter plate 803 is movably arranged inside the air bin 801, a limiting groove 812 extending to the surface of the primary filter plate 803 is arranged inside the primary filter plate 803, a support rod 805 fixedly connected to the air bin 801 is symmetrically arranged on one side of the primary filter plate 803, a sleeve 804 is fixedly connected between the two groups of support rods 805, and a rotating shaft 809 is rotatably connected inside the sleeve 804, The fan blade 802 is fixedly connected to one side of the rotating shaft 809 away from the primary filter plate 803, and the cross bar 810 is fixedly connected to the other side of the sleeve 804. The auxiliary warning device also includes top rods 811 symmetrically and movably arranged at both ends of the cross bar 810. A limit plate 806 is movably arranged inside the sleeve 804, and 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. First, a heat exchange core is arranged inside the chassis 1. Fresh air from the outside is first introduced through the fresh air inlet 3. The treated fresh air is then transported to various areas of the room through the fresh air outlet 2. The dirty air in the room is collected through the exhaust air inlet 5. The air to be exhausted from the room is guided into the chassis 1. The air can exchange energy with the fresh air in the chassis 1. Finally, the dirty air in the room is exhausted to the outside through the exhaust air outlet 4 after passing through the chassis 1, thereby completing the replacement process of indoor and outdoor air. In this process, fresh air is introduced through the fresh air fan 6. When the airflow enters the interior of the air chamber 801 through the fresh air inlet 3, when the primary filter plate 803 is used normally to effectively filter large particles, the airflow causes the fan blades 802 to rotate, and the rotation of the fan blades 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 top rod 811 inside it is thrown out by centrifugal force to squeeze the inclined surface 807, so that the limiting plate 806 moves horizontally into the limiting groove 812 to limit the movement of the primary filter plate 803, thereby improving the stability of the primary filter plate 803 during the filtering operation. When the primary filter plate 803 is gradually blocked after being used for a period of time, resulting in a decrease in the efficiency of fresh air passing through and making it difficult to continue using, the flow rate generated by the airflow driven by the fresh air fan 6 will also decrease. At this time, the centrifugal force generated by the rotation of the fan blades 802 will not be able to drive the top rod 811 to squeeze the inclined portion 807. At this time, the limit plate 806 will move in the opposite direction under the resetting action of the resetting spring 808 to separate from the limit groove 812, thereby releasing the limit operation on the primary filter plate 803, and then the primary filter plate 803 can be replaced by a filter changer.

[0019] Example 2 The filter changer includes a sealing chamber 901 fixedly connected to one end of the outer wall of the gas bin 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, and 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 the interior of the sealing chamber 901 is provided with a closed slide groove 903 extending to the surface of the sealing chamber 901, and the closed slide groove 903 matches the fixed block 906. The filter changer also includes a replacement chamber 904 fixedly connected to the same end of the outer wall of the gas bin 801 as the sealing chamber 901, the replacement chamber 904 is located between the sealing chamber 901 and the fresh air blower 6, and the inner wall of the replacement chamber 904 is A mounting groove 916 is provided at one end, and 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. A filling bar 910 is fixedly connected to one end of the top of the transmission bar 914. A spare groove 917 is provided on one side of the movable slide groove 918. A plurality of groups of spare filter plates 907 are equidistantly provided inside the spare groove 917. A propulsion spring 924 is fixedly connected to one side of the inner wall of the spare groove 917. 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. The mounting groove 916, the movable slide groove 918 and the spare groove 917 are interconnected. The filter changer also includes an arc groove 919 which is opened at the bottom of the air bin 801 and extends to the bottom end of the air bin 801. The arc groove 919 is rotatably connected to a gear 913. A worm 909 is fixedly connected to the top of the gear 913. The worm 909 extends to the top of the air bin 801. A transmission block 911 is fixedly connected to the outer wall of the primary filter plate 803. A toothed surface 912 which meshes with the gear 913 is provided on one side of the outer wall of the transmission bar 914. The filter changer also includes an arc groove 919 which is provided in the air bin 801. A middle avoidance groove 923 is provided on one side of the inner wall, a bottom avoidance groove 920 matching the replacement strip 910 is provided 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 air bin 801 is provided at the inner top of the air bin 801, and a replacement guide groove 921 matching the primary filter plate 803 is provided on the other side of the inner wall of the air bin 801; a volute tooth groove matching the worm 909 is provided on the outer wall of the transmission block 911; The outer wall of the plurality of spare filter plates 907 is also fixedly mounted with a transmission block 911, and the top avoidance groove 922 is provided for the transmission block 911 and the primary filter plate 803 to move, and the interior of the sealing chamber 901 and the gas chamber 801 are interconnected. When the auxiliary alarm releases the limit 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 chute 903, and the movement of the closed chute 903 drives the partition plate 905 to move synchronously and enter the interior of the gas chamber 801 until the partition plate 905 cuts off the gas. The internal space of the air bin 801 is separated from the entrance of the fresh air inlet 3, and then the transmission block 911 is driven to move upward by rotating the worm 909. The transmission block 911 moves upward and 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, and the rotation of the gear 913 drives the transmission bar 914 to translate as a whole inside the mobile slide groove 918 through the tooth surface 912, and multiple groups of replacement The replacement spring 915 is pressed. After the primary filter plate 803 is completely pushed out of the air chamber 801, the replacement strip 910 and the transmission strip 914 are abutted against the other end of the inner wall of the movable slide groove 918 under the drive of the gear 913. At this time, the replacement push plate 908 squeezes the multiple sets of spare filter plates 907 under the reset action of the propulsion spring 924, so that a set of spare filter plates 907 close to the replacement strip 910 moves to the top of the transmission strip 914, and then the force on the worm 909 is released. The replacement strip 910 will be pressed against the reset action of the multiple sets of replacement springs 915. Under the action of the position, the spare filter plate 907 on the top of the transmission bar 914 is pushed to the initial position of the primary filter plate 803, and the transmission block 911 and the worm gear 909 are engaged with each other for subsequent use. After completing the filter plate replacement operation, the electric push rod 902 is driven in the reverse direction to drive the partition 905 to reset, and the gas circulation inside the gas chamber 801 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.

[0020] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in 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 replace the filter plate at the front end of the auxiliary 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 being connected to the auxiliary warning device, and the filter changer being used to improve the efficiency of replacing the filter plate.

2. The industrial fresh exhaust air total heat exchanger according to claim 1, characterized in that: 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).

3. The industrial fresh exhaust air total heat exchanger according to claim 2, characterized in that: 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).

4. The industrial fresh exhaust air total heat exchanger according to claim 2, 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).

5. The industrial fresh exhaust air total heat exchanger according to claim 4, 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.

6. The industrial fresh exhaust air total heat exchanger according to claim 5, 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).

7. The industrial fresh exhaust air total heat exchanger according to claim 6, 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).

8. The industrial fresh exhaust air total heat exchanger according to claim 7, 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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