VOCs desorption energy-saving heat exchange system

Abstract

The utility model provides a VOCs desorption energy-saving heat exchange system which comprises a bottom plate and further comprises a supporting frame fixedly connected to the top end of the bottom plate, a flow dividing pipe is fixedly connected to the interior of the supporting frame, a water conveying pipe is fixedly connected to the interior of the supporting frame, and a water pump is fixedly connected to the bottom end of the water conveying pipe. The bottom end of the water pump is fixedly connected with an electrolysis box, the right end of the supporting frame is fixedly connected with a conveying pipe, the right end of the conveying pipe is fixedly connected with a filtering box, a filtering plate is slidably connected into the filtering box, two fixing blocks are fixedly connected into the filtering box, and sliding rods are slidably connected into the fixing blocks. According to the utility model, the filter plate for filtering gas in the device can be quickly disassembled, so that the time of replacing the filter plate by related personnel after the filter plate is used for a long time is shortened, and the subsequent influence on the use effect of the gas adsorption structure due to the reduction of the effect of the filter plate is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, and in particular to a VOCs desorption energy-saving heat exchange system. Background Art

[0002] VOCs are a class of organic compounds that easily evaporate into gas or vapor at room temperature. VOCs can come from a variety of sources, including chemical products, detergents, coatings, paints, grease, gasoline, automobile exhaust, industrial production, etc. Their presence in the atmosphere can have a negative impact on air quality, human health and the environment. VOCs emissions are related to air pollution, photochemical ozone generation, fine particulate matter formation and other issues. Therefore, the control and management of VOCs is crucial to protecting the environment and human health. In order to facilitate emission after treatment, a desorption energy-saving heat exchange system is required. The desorption energy-saving heat exchange system is a technology used to treat volatile organic compounds (VOCs). This system is usually used for waste gas treatment in industrial production processes, especially processes that require the recovery and reuse of volatile organic compounds. It can effectively capture and reuse volatile organic compounds in waste gas, and at the same time achieve energy recovery and energy saving through the heat exchange process. It is widely used in industries such as chemical, printing, coating, and automobile manufacturing, which helps to reduce emissions, reduce energy consumption, and achieve the dual goals of environmental protection and energy saving.

[0003] Chinese patent CN209530455U discloses an energy-saving heat exchange system for organic waste gas VOCs treatment and desorption system, which includes: a first sealed box, in which a first heat exchanger is arranged; a second sealed box, in which a second heat exchanger is arranged; a third sealed box, in which a third heat exchanger and an electric heater are arranged; a temperature sensor, in which the temperature sensor is arranged in the third sealed box; a plurality of control valves; a controller, in which each control valve, temperature sensor and electric heater are connected respectively. The utility model greatly improves the energy-saving effect and work efficiency.

[0004] However, the technical solution of "a first sealed box 100, with a first air inlet and a first air outlet on one side, and a second air inlet and a second air outlet on the other side, the first air inlet is connected to the air outlet of the catalytic combustion device through a pipeline, and the gas after catalytic combustion in the catalytic combustion device can enter the first sealed box 100 through the first air inlet, and the first air outlet is connected to the adsorption device through a pipeline, and the fresh gas after preheating can enter the adsorption device through the first air outlet" directly heats the gas to be treated, and does not filter the solid impurities inside the gas, which will adhere to the heating structure inside, increasing the preheating time when the heating structure is used again, as well as the cooling time when it is closed. Summary of the invention

[0005] The purpose of the present invention is to address the deficiencies in the prior art and provide a VOCs desorption energy-saving heat exchange system, which can filter solid impurities in the gas to be treated through a filter box, a filter plate, a fixed block structure in conjunction with a sliding rod, a spring, a card block, a telescopic column, and a limit sleeve structure, and can quickly replace the filtering structure, thereby solving the problem that impurities in the gas will adhere to the heating structure and reduce the efficiency of the device, and that the heat during heating treatment cannot be used in time, increasing the preheating time.

[0006] To achieve the above purpose, this utility provides the following technical solutions:

[0007] A VOCs desorption energy-saving heat exchange system, comprising a bottom plate, and also comprising a support frame fixedly connected to the top of the bottom plate, a shunt pipe fixedly connected inside the support frame, a water pipe fixedly connected inside the support frame, a water pump fixedly connected to the bottom end of the water pipe, an electrolysis box fixedly connected to the bottom end of the water pump, a delivery pipe fixedly connected to the right end of the support frame, a filter box fixedly connected to the right end of the delivery pipe, a filter plate slidably connected to the inside of the filter box, two fixed blocks fixedly connected to the inside of the filter box, a sliding rod slidably connected to the inside of the fixed block, a spring sleeved on the outside of the sliding rod, a card block slidably connected to the inside of the fixed block, a limiting assembly slidably connected to the inside of the filter box, a limiting pipe fixedly connected to the right end of the filter box, and an adsorption assembly fixedly connected to the bottom end of the limiting pipe;

[0008] As a further description of the above technical solution:

[0009] The limiting assembly comprises two telescopic columns, the outer portions of the telescopic columns are fixedly connected to the interior of the filter box, the rear ends of the telescopic columns are fixedly connected to the limiting sleeve, and the outer portions of the limiting sleeve are slidably connected to the interior of the filter box;

[0010] As a further description of the above technical solution:

[0011] The adsorption assembly includes a plurality of connecting tubes 1, the top ends of the plurality of connecting tubes 1 are fixedly connected to the bottom ends of the limiting tubes, the bottom ends of the plurality of connecting tubes 1 are fixedly connected to an adsorption box, the bottom end of the adsorption box is fixedly connected to a plurality of connecting tubes 2, and the bottom ends of the plurality of connecting tubes 2 are fixedly connected to an exhaust pipe;

[0012] As a further description of the above technical solution:

[0013] The outside of the connecting pipe 2 is fixedly connected with the gas pipe 1, the rear ends of the multiple gas pipes 1 are fixedly connected with the gas pipe 2, the front end of the gas pipe 2 is fixedly connected with the fan, the output end of the fan is fixedly connected with the fixed pipe 1, the right end of the fixed pipe 1 is fixedly connected with the heating box, the output end of the heating box is fixedly connected with the fixed pipe 2, the bottom end of the fixed pipe 2 is fixedly connected with the air purification box, the top of the air purification box is fixedly connected with the support pipe, the rear end of the support pipe is fixedly connected with multiple air pipes, the rear end of the support pipe is fixedly connected with the exhaust pipe, and the bottom end of the exhaust pipe is fixedly connected with the connecting air pipe;

[0014] As a further description of the above technical solution:

[0015] The bottom end of the connecting air duct is fixedly connected to the top of the air purification box, the right end of the exhaust pipe is fixedly connected to the outside of the exhaust pipe, and the bottom end of the heating box is fixedly connected to the top of the bottom plate;

[0016] As a further description of the above technical solution:

[0017] One end of the spring is fixedly connected to the inside of the fixed block, and the other ends of the two springs are fixedly connected to the far ends of the two clamping blocks;

[0018] As a further description of the above technical solution:

[0019] The bottom end of the exhaust pipe is fixedly connected to the top end of the bottom plate, and the bottom end of the filter box is fixedly connected to the top end of the bottom plate;

[0020] As a further description of the above technical solution:

[0021] The rear end of the air supply pipe is fixedly connected to the outside of the connecting pipe 1, the bottom end of the air purification box is fixedly connected to the top of the base plate, and the bottom end of the fan is fixedly connected to the top of the base plate.

[0022] The beneficial effects of this utility model are:

[0023] (1) The utility model can quickly disassemble the filter plate for gas filtration in the device through the structures such as the filter box, the filter plate, the fixed block, the sliding rod, the spring, the card block, the telescopic column, etc., so as to reduce the time for the personnel to replace the filter plate after the filter plate is used for a long time, reduce the excessive steps for replacing the filter plate, and prevent the subsequent use effect of the gas adsorption structure from being affected due to the reduction of the filter plate effect, thereby increasing the overall use cost of the device.

[0024] (2) The utility model can perform secondary heating of the gas to be heated by fixing the pipe 2, the air purification box, the support pipe, the air supply pipe, the exhaust pipe, the exhaust pipe, the connecting air pipe and other structures, thereby improving the waste gas treatment effect, and preheating the device and transmitting the gas during heating simultaneously with the air intake pipe, thereby increasing the efficiency of gas treatment and reducing the time for the adsorption plate to reach saturation.

[0025] In summary, the utility model has the advantages of timely filtering impurities in the gas, quickly replacing the filtering structure, utilizing the heat during preheating, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the practical limit tube;

[0028] Figure 3 This is a schematic diagram of the structure of the practical filter plate;

[0029] Figure 4 This is a schematic diagram of the structure of the practical heating box.

[0030] Legend:

[0031] 1. Bottom plate; 2. Support frame; 3. Diverter pipe; 4. Water pump; 5. Water pipe; 6. Electrolytic box; 7. Delivery pipe; 8. Filter box; 9. Filter plate; 10. Fixed block; 11. Sliding rod; 12. Spring; 13. Block; 14. Telescopic column; 15. Limit sleeve; 16. Limit pipe; 17. Connecting pipe 1; 18. Adsorption box; 19. Connecting pipe 2; 20. Gas pipe 1; 21. Gas pipe 2; 22. Fan; 23. Fixed pipe 1; 24. Heating box; 25. Fixed pipe 2; 26. Air purification box; 27. Support pipe; 28. Air pipe; 29. ​​Exhaust pipe; 30. Exhaust pipe; 31. Connecting air duct. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments to clearly and completely describe the technical solutions in the embodiments of this utility. Obviously, the described embodiments are only part of the embodiments of this utility, not all of them. Based on the embodiments in this utility, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this utility.

[0033] In the description of this utility, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this utility and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this utility. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this utility, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0034] Embodiment 1

[0035] like Figure 1 - Figure 3As shown, this embodiment provides a VOCs desorption energy-saving heat exchange system, including a base plate 1, which is the basic part of the system and provides support and stability for the entire system. It also includes a support frame 2 fixedly connected to the top of the base plate 1, which is fixedly connected to the top of the base plate 1, and is used for components such as a diversion pipe 3, and provides a structural support frame. The inside of the support frame 2 is fixedly connected to a diversion pipe 3, which is installed inside the support frame 2 and is used to divert the exhaust gas to different treatment pipelines, and perform more comprehensive dust suppression on it to achieve more effective treatment. The inside of the support frame 2 is fixedly connected to a water pipe 5, and the water pipe 5 is connected to a water pump through the bottom end. 4, used to transport the treated waste gas or liquid generated during the treatment process, the bottom end of the water delivery pipe 5 is fixedly connected to a water pump 4, the water pump 4 is located at the bottom end of the water delivery pipe 5, and is used to provide sufficient pressure and flow to promote the circulation of the liquid in the system, the bottom end of the water pump 4 is fixedly connected to an electrolytic box 6, the electrolytic box 6 is at the bottom of the water pump 4, and is used to treat the used water, so as to achieve the effect of recycling the water, the right end of the support frame 2 is fixedly connected to a delivery pipe 7, the delivery pipe 7 extends from the right end of the support frame 2, and is used to transport the treated waste gas or liquid to the next treatment unit, the right end of the delivery pipe 7 is fixedly connected to a filter box 8, the filter box 8 A filter plate 9 is slidably connected inside, and a filter box 8 is installed at the right end of the delivery pipe 7. A filter plate 9 is slidably connected inside the filter box 8 to further filter impurities or particulate matter in the exhaust gas. Two fixed blocks 10 are fixedly connected inside the filter box 8. The fixed block 10 is installed inside the filter box 8 to fix and support the sliding rod 11 and the spring 12, and to keep the position of the filter plate 9 stable. The sliding rod 11 is slidably connected inside the fixed block 10, and the external sleeve of the sliding rod 11 is provided with a spring 12, which is slidably connected to the fixed block 10 to support and adjust the position of the filter plate 9. The external sleeve of the sliding rod 11 is provided with a spring 12, and the spring 12 is connected to the sliding rod 11. The outside of the rod 11 provides support and adjustment for the filter plate 9 through elastic force to adapt to different operating conditions and pressures. One end of the spring 12 is fixedly connected to the inside of the fixed block 10, and the other ends of the two springs 12 are fixedly connected to the far ends of the two clamping blocks 13. The clamping blocks 13 are located at both ends of the fixed block 10 and the spring 12, and are used to fix and maintain the position of the filter plate 9. The inside of the fixed block 10 is slidably connected with the clamping block 13, and the inside of the filter box 8 is slidably connected to a limiting assembly. The limiting assembly includes two telescopic columns 14, and the rear end of the telescopic column 14 is fixedly connected to a limiting sleeve 15 to limit the movement of the limiting sleeve 15 to prevent the limiting sleeve 15 from deflecting when sliding inside the filter box 8. The outside of the telescopic column 14 is fixedly connected to the inside of the filter box 8, and the rear end of the telescopic column 14 is fixedly connected to the limiting sleeve 15. The outside of the limiting sleeve 15 is slidably connected to the inside of the filter box 8, and the right end of the filter box 8 is fixedly connected to a limiting tube 16.

[0036] Embodiment 2

[0037] like Figure 1and Figure 2 As shown, the components identical or corresponding to those in the first embodiment are marked with the corresponding reference numerals in the first embodiment. For the sake of simplicity, only the differences from the first embodiment are described below. The difference between the second embodiment and the first embodiment is that: the bottom end of the limit tube 16 is fixedly connected to an adsorption assembly, the adsorption assembly includes a plurality of connecting tubes 17, the top ends of the plurality of connecting tubes 17 are fixedly connected to the bottom end of the limit tube 16, the bottom ends of the plurality of connecting tubes 17 are fixedly connected to an adsorption box 18, the bottom end of the adsorption box 18 is fixedly connected to a plurality of connecting tubes 2 19, the bottom ends of the plurality of connecting tubes 2 19 are fixedly connected to an exhaust pipe 30, and the bottom end of the limit tube 16 is fixedly connected to an adsorption assembly for further treating volatile organic compounds in the exhaust gas. The adsorption assembly includes a plurality of connecting tubes 17, the top ends of these connecting tubes 17 are fixedly connected to the bottom end of the limit tube 16, and the bottom ends are fixedly connected to an adsorption box 18. The bottom end of the adsorption box 18 is fixedly connected to a plurality of connecting pipes 19, and the bottom ends of these connecting pipes 19 are fixedly connected to an exhaust pipe 30, and the bottom end of the exhaust pipe 30 is fixedly connected to the top of the bottom plate 1, and the bottom end of the exhaust pipe 30 is fixedly connected to the top of the bottom plate 1. The bottom end of the filter box 8 is fixedly connected to the top of the bottom plate 1. The function of the adsorption component is to further capture and process the volatile organic compounds in the exhaust gas to improve the processing efficiency and cleanliness of the system. When the exhaust gas enters the adsorption box 18, the VOCs therein will be adsorbed onto the surface of the adsorption material, thereby purifying the exhaust gas. Subsequently, the treated exhaust gas is discharged through the connecting pipe 19, enters the exhaust pipe 30, and is finally released into the environment.

[0038] Embodiment 3

[0039] like Figure 4As shown, this embodiment provides a VOCs desorption energy-saving heat exchange method, the outside of the connecting pipe 19 is fixedly connected with the gas pipe 20, the rear ends of the multiple gas pipes 20 are fixedly connected with the gas pipe 21, the front end of the gas pipe 21 is fixedly connected with the fan 22, the output end of the fan 22 is fixedly connected with the fixed pipe 23, the right end of the fixed pipe 23 is fixedly connected with the heating box 24, the output end of the heating box 24 is fixedly connected with the fixed pipe 25, the bottom end of the fixed pipe 25 is fixedly connected with the air purification box 26, the top of the air purification box 26 is fixedly connected with the support pipe 27, the outside of the connecting pipe 19 is fixedly connected with the gas pipe 20, these gas pipes 20 extend backward and are fixedly connected with the gas pipe 21, the front end of the gas pipe 21 is fixedly connected with the fan 22, and the output end of the fan 22 is fixedly connected with the fixed pipe 23. The right end of the fixed pipe 1 23 is fixedly connected with a heating box 24, so that the saturated organic matter inside the adsorption plate is transported, and the heating box 24 is started to process the organic matter. The output end of the heating box 24 is fixedly connected with a fixed pipe 25. The bottom end of the fixed pipe 25 is fixedly connected with an air purification box 26, and the top end of the air purification box 26 is fixedly connected with a support pipe 27. The air purification box 26 heats and transports the external air to the adsorption plate after absorbing and filtering it, and evaporates and transports the organic matter inside the adsorption plate through heat. The rear end of the support pipe 27 is fixedly connected with a plurality of air delivery pipes 28, and the rear end of the support pipe 27 is fixedly connected with a plurality of air delivery pipes 28, which extend to the outside of the connecting pipe 1 17. The bottom end of the air purification box 26 is fixedly connected to the top end of the bottom plate 1, so that it is firmly installed in the system. The bottom end of the fan 22 is also fixedly connected to the top of the bottom plate 1 to ensure the overall structural stability of the system. The rear end of the air delivery pipe 28 is fixedly connected to the outside of the connecting pipe 17. The bottom end of the air purification box 26 is fixedly connected to the top of the bottom plate 1. The bottom end of the fan 22 is fixedly connected to the top of the bottom plate 1. The rear end of the support pipe 27 is fixedly connected to the exhaust pipe 29, and the bottom end of the exhaust pipe 29 is fixedly connected to the connecting air pipe 31. In addition, the rear end of the support pipe 27 is fixedly connected to the exhaust pipe 29, and the bottom end of the exhaust pipe 29 is fixedly connected to the connecting air pipe 31. The installation and connection of these components constitute a complete exhaust gas treatment path of the system, ensuring that the exhaust gas can be effectively collected, treated and discharged, thereby achieving environmental protection and pollution control.

[0040] Working steps

[0041] Step 1. When the device needs to be used, the filter plate 9 is slidably connected into the interior of the filter box 8, and the two blocks 13 are ejected through the surface of the filter box 8. The ejection of the blocks 13 drives the movement of the sliding rod 11, and the spring 12 is limited by the grooves opened in the blocks 13 and the fixing blocks 10, so that the elasticity of the spring 12 fixes the blocks 13 in the filter plate 9. When the filter plate 9 needs to be replaced after use, the limit sleeve 15 is pressed to drive the movement of the telescopic column 14 and eject the blocks 13 at the same time, and the block 13 is separated from the interior of the filter plate 9 to achieve the quick disassembly of the filter plate 9.

[0042] Step 2, after the filter plate 9 is installed, it is preheated by starting the air purification box 26, the water inside the support frame 2 is sucked by starting the water pump 4, the gas is sucked by starting the support frame 2, and the water source treated by the electrolysis box 6 is transported to the water pipe 5 by starting the water pump 4 to suppress the dust inside the gas, and it is transported to the filter box 8 through the transportation of the transportation pipe 7, and the impurities inside the gas are filtered through the filter plate 9 inside the filter box 8 to prevent the impurities from affecting the subsequent steps, and the gas is transported to the limit pipe 16 and then to the connecting pipe 17, and the heat flow inside the air purification box 26 is transported through the connection between the support pipe 27 and the air supply pipe 28, and it is transported to the adsorption box 18 and then merged with the gas to increase the working time of the adsorption plate, and then it is transported to the adsorption box 18 through the transportation of the connecting pipe 17, and the adsorption plate inside the adsorption box 18 controls the gas inside Organic matter is adsorbed, and its gas is processed and then discharged into the gas pipe 20, and then discharged into the exhaust pipe 30 for high discharge, and after several adsorption plates are saturated, the delivery to the exhaust pipe 30 is closed, and the heat in the direct current air purification box 26 of the support pipe 27 is used to blow the solidified organic matter inside the adsorption plate into the gas pipe 20, and after being transported to the gas pipe 20, it is transported to the gas pipe 21 through the transport and connection of the gas pipe 20, and then transported to the fixed pipe 23 through the transport of the gas pipe 21 and the start-up of the fan 22, and then transported to the heating box 24 through the fixed pipe 23, and then the organic matter is treated by starting the heating box 24 to heat it, and then after the organic matter is treated, it is transported to the exhaust pipe 29 through the connection of the air duct 31, and then it is transported to the exhaust pipe 30 through the connection of the exhaust pipe 29 to be discharged.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A VOCs desorption energy-saving heat exchange system, comprising a bottom plate, characterized in that: It also includes a support frame fixedly connected to the top of the bottom plate, a shunt pipe fixedly connected inside the support frame, a water pipe fixedly connected inside the support frame, a water pump fixedly connected to the bottom end of the water pipe, an electrolysis box fixedly connected to the bottom end of the water pump, a delivery pipe fixedly connected to the right end of the support frame, a filter box fixedly connected to the right end of the delivery pipe, a filter plate slidably connected to the inside of the filter box, two fixed blocks fixedly connected to the inside of the filter box, a sliding rod slidably connected to the inside of the fixed block, a spring sleeved on the outside of the sliding rod, a card block slidably connected to the inside of the fixed block, a limiting assembly slidably connected to the inside of the filter box, a limiting pipe fixedly connected to the right end of the filter box, and an adsorption assembly fixedly connected to the bottom end of the limiting pipe.

2. A VOCs desorption energy-saving heat exchange system according to claim 1, characterized in that: The limiting assembly comprises two telescopic columns, the exterior of the telescopic columns being fixedly connected to the interior of the filter box, the rear end of the telescopic columns being fixedly connected to a limiting sleeve, and the exterior of the limiting sleeve being slidably connected to the interior of the filter box.

3. A VOCs desorption energy-saving heat exchange system according to claim 1, characterized in that: The adsorption assembly includes multiple connecting tubes 1, the top ends of the multiple connecting tubes 1 are fixedly connected to the bottom end of the limiting tube, the bottom ends of the multiple connecting tubes 1 are fixedly connected to an adsorption box, the bottom end of the adsorption box is fixedly connected to multiple connecting tubes 2, and the bottom ends of the multiple connecting tubes 2 are fixedly connected to an exhaust pipe.

4. A VOCs desorption energy-saving heat exchange system according to claim 3, characterized in that: The outside of the connecting pipe 2 is fixedly connected with an air supply pipe 1, and the rear ends of the multiple air supply pipes 1 are fixedly connected with air supply pipe 2, the front end of the air supply pipe 2 is fixedly connected with a fan, the output end of the fan is fixedly connected with a fixed pipe 1, the right end of the fixed pipe 1 is fixedly connected with a heating box, the output end of the heating box is fixedly connected with a fixed pipe 2, the bottom end of the fixed pipe 2 is fixedly connected with an air purification box, the top of the air purification box is fixedly connected with a supporting pipe, the rear end of the supporting pipe is fixedly connected with multiple air supply pipes, the rear end of the supporting pipe is fixedly connected with an exhaust pipe, and the bottom end of the exhaust pipe is fixedly connected with a connecting air duct.

5. A VOCs desorption energy-saving heat exchange system according to claim 4, characterized in that: The bottom end of the connecting air duct is fixedly connected to the top end of the air purification box, the right end of the exhaust pipe is fixedly connected to the outside of the exhaust pipe, and the bottom end of the heating box is fixedly connected to the top end of the bottom plate.

6. A VOCs desorption energy-saving heat exchange system according to claim 1, characterized in that: One end of the spring is fixedly connected to the inside of the fixed block, and the other ends of the two springs are fixedly connected to the far ends of the two clamping blocks.

7. A VOCs desorption energy-saving heat exchange system according to claim 3, characterized in that: The bottom end of the exhaust pipe is fixedly connected to the top end of the bottom plate, and the bottom end of the filter box is fixedly connected to the top end of the bottom plate.

8. A VOCs desorption energy-saving heat exchange system according to claim 4, characterized in that: The rear end of the air supply pipe is fixedly connected to the outside of the connecting pipe 1, the bottom end of the air purification box is fixedly connected to the top of the base plate, and the bottom end of the fan is fixedly connected to the top of the base plate.

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