Integrated modular waste gas recovery treatment device

Abstract

The utility model discloses an integrated modular waste gas recovery treatment device, which relates to the technical field of organic waste gas treatment in production workshops and comprises a filtration and concentration module, a desorption module and a recovery module which are sequentially connected through pipelines, the filtration and concentration module, the desorption module and the recovery module are independently arranged; the concentration module is communicated with a workshop waste gas discharge pipeline, the recovery module comprises a gas discharge port and a liquid discharge port, the gas discharge port is connected with an inlet of the concentration module, and the liquid discharge port is connected with a solvent temporary storage tank. According to the utility model, each mechanism in the device is subjected to size design, so that the device can adapt to a modularized structural design, can be independently transported without interference, and can be connected through a pipeline when being installed in a workshop, so that the installation space is greatly saved, and the transportation difficulty is also reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of organic waste gas treatment in production workshops, in particular to an integrated modular waste gas recovery and treatment device. Background Art

[0002] In printing workshops, decorative paper production and processing workshops, and lithium battery production workshops, a large amount of waste gas is often discharged during daily use. These waste gases contain a large amount of volatile organic compounds (VOCs), which will cause serious pollution. Not only will it lead to deterioration of air quality, but it will also cause great harm to the health of workshop workers and cause respiratory and nervous system diseases.

[0003] Harmless treatment of workshop exhaust gas can reduce these hazards. Volatile organic compounds (VOCs) can be recovered through resource recycling, which can also improve the company's economic benefits. Common recovery methods include adsorption, condensation recovery, and catalytic combustion. These recovery methods place high demands on the recovery equipment and often occupy a large installation space.

[0004] For example, in the invention patent application with publication number CN118560150A (An organic waste gas treatment equipment and method for a printing and packaging workshop), a waste gas treatment equipment is disclosed, including an equipment platform, on which an adsorption mechanism is installed. The adsorption mechanism includes an adsorption tower, an adsorption bed and an air duct. The other end of the air duct is connected to a drying mechanism such as an oven. Closing mechanisms are installed on both sides of the oven. The equipment is connected to the printing press through the air duct. The functional mechanisms in the equipment are arranged in a linear arrangement in sequence, occupying a large space volume, which is not conducive to the installation of the equipment and also increases the investment cost of the enterprise. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide an integrated modular exhaust gas recovery and treatment device to save the floor space of the exhaust gas recovery and treatment device and facilitate the transportation and installation of the device.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an integrated modular exhaust gas recovery and treatment device, comprising a filtration and concentration module, a desorption module, and a recovery module connected in sequence by pipelines; the filtration and concentration module, the desorption module, and the recovery module are independently arranged;

[0007] The concentration module is connected to the workshop exhaust pipe, and the recovery module includes a gas outlet and a liquid outlet. The gas outlet is connected to the inlet of the concentration module, and the liquid outlet is connected to a solvent temporary storage tank.

[0008] Furthermore, the filtration and concentration module includes a filter and a rotary concentrator; the rotary concentrator is provided with an adsorption zone, a desorption zone and a cooling zone; the desorption module includes a first heater, a first fan and a first surface cooler;

[0009] The inlet of the filter is connected to the outlet of the workshop exhaust pipe, the outlet of the filter is connected to the inlet of the adsorption zone, and the outlet of the adsorption zone is connected to the exhaust gas discharge port; the inlet of the desorption zone is connected to the first heater, and the outlet of the desorption zone is connected to the recovery module through the first fan.

[0010] Furthermore, the recovery module includes an adsorber, an air-to-air heat exchanger, a second surface cooler, a second fan, a condenser, and a second heater arranged in sequence;

[0011] The outlet of the desorption zone is communicated with the inlet of the adsorber, the air-to-air heat exchanger is provided with a first inlet, a second inlet, a first outlet and a second outlet, the outlet of the adsorber is simultaneously connected to the inlet of the cooling zone and the first inlet of the air-to-air heat exchanger, the first outlet of the air-to-air heat exchanger is connected to the inlet of the second surface cooler, the outlet of the second surface cooler is connected to the second inlet of the air-to-air heat exchanger through a second fan, the second outlet of the air-to-air heat exchanger is communicated with the inlet of the condenser, and the outlet of the condenser is communicated with the inlet of the adsorber; the second heater is arranged between the inlet of the condenser and the adsorber.

[0012] Furthermore, the adsorber includes a first adsorber and a second adsorber arranged in parallel.

[0013] Furthermore, the inlet of the first surface cooler is connected to the outlet of the desorption zone through a first fan, and the outlet of the first surface cooler is connected to the inlet of the adsorber.

[0014] Furthermore, the pipeline between the condenser outlet and the second heater also passes through the air-to-air heat exchanger.

[0015] Furthermore, a liquid outlet is provided in the air-to-air heat exchanger and the condenser, and the liquid outlet is connected to a solvent temporary storage tank.

[0016] Furthermore, a water heat exchanger is provided on the pipeline between the liquid outlet and the solvent temporary storage tank.

[0017] Furthermore, the adsorber is filled with activated carbon.

[0018] Furthermore, the adsorber is provided with an activated carbon filling port at the top and an activated carbon waste discharge port at the bottom.

[0019] Compared with the existing technology, the present invention provides an integrated modular exhaust gas recovery and treatment device with the following beneficial effects:

[0020] Each mechanism within this device has been sized to accommodate a modular design. The filter and rotor concentrator are integrated within the filtration and concentration module; the first heater, first fan, and first surface cooler are integrated within the desorption module; and the adsorber, air-to-air heat exchanger, second surface cooler, second fan, condenser, and second heater are integrated within the recovery module. Each module is independently designed and can be transported independently without interfering with each other. During installation in a workshop, they can be connected via piping, significantly saving installation space and simplifying transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is the front view of the filtration and concentration module of the present utility model;

[0023] Figure 3 This is a top view of the filtration and concentration module of the present utility model;

[0024] Figure 4 This is the main view of the desorption module of the present utility model;

[0025] Figure 5 This is a top view of the desorption module of the present utility model;

[0026] Figure 6 This is the front view of the recycling module of the present utility model;

[0027] Figure 7 This is a top view of the recycling module of the present utility model;

[0028] Figure 8 It is a schematic diagram of the working principle of the utility model.

[0029] In the figure: 1. Filtration and concentration module; 2. Desorption module; 3. Recovery module; 11. Filter; 12. Rotary concentrator; 13. Adsorption zone; 14. Desorption zone; 15. Cooling zone; 21. First heater; 22. First fan; 23. First surface cooler; 31. First adsorber; 32. Second adsorber; 311. Activated carbon filling port; 312. Activated carbon waste discharge port; 33. Air-to-air heat exchanger; 34. Second surface cooler; 35. Second fan; 36. Condenser; 37. Second heater; 4. Solvent storage tank; 5. Water heat exchanger. DETAILED DESCRIPTION

[0030] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0031] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] An integrated modular waste gas recovery and treatment device includes a filtration and concentration module 1, a desorption module 2 and a recovery module 3 which are sequentially connected through pipelines, and the filtration and concentration module 1, the desorption module 2 and the recovery module 3 are independently arranged.

[0033] The filtration and concentration module 1 includes a filter 11 and a rotary concentration device 12 arranged in sequence; the desorption module 2 includes a first heater 21, a first fan 22 and a first surface cooler 23; the recovery module 3 includes an adsorber, an air-to-air heat exchanger 33, a second surface cooler 34, a second fan 35, a condenser 36 and a second heater 37 arranged in sequence.

[0034] The rotor concentrator 12 is provided with an adsorption zone 13, a desorption zone 14 and a cooling zone 15. The rotor concentrator 12 is filled with zeolite to adsorb organic gases in the workshop exhaust gas.

[0035] The inlet of the filter 11 is connected to the outlet of the workshop exhaust pipe, the outlet of the filter 11 is connected to the inlet of the adsorption zone 13 of the rotary concentrator 12, and the outlet of the adsorption zone 13 is connected to the exhaust gas discharge port; the outlet of the desorption zone 14 of the rotary concentrator 12 is connected to the inlet of the adsorber through the first fan 22, and the inlet of the desorption zone 14 is connected to the first heater 21.

[0036] Specifically, the inlet of the first surface cooler 23 is connected to the outlet of the desorption zone 14 through the first fan 22 , and the outlet of the first surface cooler 23 is connected to the inlet of the adsorber.

[0037] In a specific embodiment, in order to enable the device to operate continuously, two identical adsorbers are arranged in parallel, namely the first adsorber 31 and the second adsorber 32. The two adsorbers work alternately without stopping: for example, when the first adsorber 31 is adsorbing, the second adsorber 32 is performing a desorption operation, and vice versa.

[0038] The adsorber is filled with activated carbon, with an activated carbon loading port 311 located at its top and an activated carbon waste discharge port 312 at its bottom. During operation, the integrated modular exhaust gas recovery and treatment device of this utility model continuously performs adsorption and desorption operations, resulting in a service life of the activated carbon of 3-5 years or even longer. When the activated carbon needs to be replaced, the deactivated activated carbon is discharged from the activated carbon waste discharge port 312 and fresh activated carbon is then loaded from the activated carbon loading port 311.

[0039] The air-to-air heat exchanger 33 is equipped with a first inlet, a second inlet, a first outlet, and a second outlet. The adsorber outlet is connected to both the inlet of the cooling zone 15 of the rotary concentrator 12 and the first inlet of the air-to-air heat exchanger 33. The first outlet of the air-to-air heat exchanger 33 is connected to the inlet of a second condenser 34. The outlet of the second condenser 34 is connected to the second inlet of the air-to-air heat exchanger 33 via a second fan 35. The second outlet of the air-to-air heat exchanger 33 is connected to the inlet of a condenser 36, which in turn is connected to the inlet of the adsorber. A second heater 37 is located between the condenser 36 and the adsorber inlet. To further enhance condensation, the pipeline from the outlet of the condenser 36 to the second heater 37 also passes through the air-to-air heat exchanger 33.

[0040] Liquid outlets are provided in both the air-to-air heat exchanger 33 and the condenser 36 , and the liquid outlets are connected to a solvent temporary storage tank 4 , which can collect the condensed organic solvent for recycling. In order to reduce the temperature of the organic solvent and effectively utilize the waste heat of the organic solvent, a water heat exchanger 5 is provided on the pipeline between the liquid outlet and the external solvent temporary storage tank 4 .

[0041] In this utility model, each mechanism within the device is sized to accommodate a modular design. The filter 11 and the rotary concentrator 12 are integrated within the filtration and concentration module 1. The first heater 21, the first fan 22, and the first surface cooler 23 are integrated within the desorption module 2. The adsorber, air-to-air heat exchanger 33, the second surface cooler 34, the second fan 35, the condenser 36, and the second heater 37 are integrated within the recovery module 3. Each module is independently designed and can be transported independently without interfering with each other. During installation in a workshop, they can be connected via piping, significantly saving installation space and simplifying transportation.

[0042] The working principle of the integrated modular exhaust gas recovery and treatment device of this utility model is as follows:

[0043] (1) The workshop exhaust gas from the workshop exhaust gas outlet enters the filter 11 from the inlet of the filter 11, and after being filtered, enters the adsorption area 13 of the rotary concentrator 12 for gas adsorption. The unadsorbed gas is detected by the VOC content detector and meets the standard, and then discharged from the tail gas outlet;

[0044] (2) After the adsorption zone 13 reaches adsorption saturation, it enters the desorption zone 14 for desorption. At this time, the first heater 21 heats the desorption zone 14. After desorption, the gas enters the adsorber for adsorption again.

[0045] (3) The gas not adsorbed by the adsorber returns to the filter 11 and enters the rotary concentrator 12 through the inlet of the filter 11 for adsorption again;

[0046] (4) After the adsorber reaches adsorption saturation, the second heater 37 heats the adsorber to desorb. The gas generated after desorption enters the air-to-air heat exchanger 33, the second surface cooler 34 and the condenser 36 in sequence. The liquid formed after condensation enters the solvent storage tank 4; the uncondensed gas enters the adsorber again for adsorption.

[0047] In this device, the gas is circulated and adsorbed multiple times in the filter 11, the rotary concentration device 12, the adsorber, the air-to-air heat exchanger 33, the second surface cooler 34 and the condenser 36, which can achieve multiple adsorption of organic waste gas in the gas. Compared with single adsorption and desorption, the recovery and utilization efficiency of organic waste gas in the workshop exhaust gas is greatly improved.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. An integrated modular waste gas recovery and treatment device, characterized by: It includes a filtration and concentration module, a desorption module and a recovery module connected in sequence by pipelines; the filtration and concentration module, the desorption module and the recovery module are independently arranged; The concentration module is connected to the workshop exhaust pipe, and the recovery module includes a gas outlet and a liquid outlet. The gas outlet is connected to the inlet of the concentration module, and the liquid outlet is connected to a solvent temporary storage tank.

2. The integrated modular exhaust gas recovery and treatment device according to claim 1, characterized in that: The filtration and concentration module includes a filter and a rotary concentrator; the rotary concentrator is provided with an adsorption zone, a desorption zone and a cooling zone; the desorption module includes a first heater, a first fan and a first surface cooler; The inlet of the filter is connected to the outlet of the workshop exhaust pipe, the outlet of the filter is connected to the inlet of the adsorption zone, and the outlet of the adsorption zone is connected to the exhaust gas discharge port; the inlet of the desorption zone is connected to the first heater, and the outlet of the desorption zone is connected to the recovery module through the first fan.

3. The integrated modular exhaust gas recovery and treatment device according to claim 2, characterized in that: The recovery module includes an adsorber, an air-to-air heat exchanger, a second surface cooler, a second fan, a condenser, and a second heater, which are arranged in sequence; The outlet of the desorption zone is communicated with the inlet of the adsorber, the air-to-air heat exchanger is provided with a first inlet, a second inlet, a first outlet and a second outlet, the outlet of the adsorber is simultaneously connected to the inlet of the cooling zone and the first inlet of the air-to-air heat exchanger, the first outlet of the air-to-air heat exchanger is connected to the inlet of the second surface cooler, the outlet of the second surface cooler is connected to the second inlet of the air-to-air heat exchanger through a second fan, the second outlet of the air-to-air heat exchanger is communicated with the inlet of the condenser, and the outlet of the condenser is communicated with the inlet of the adsorber; the second heater is arranged between the inlet of the condenser and the adsorber.

4. The integrated modular exhaust gas recovery and treatment device according to claim 3, characterized in that: The adsorber includes a first adsorber and a second adsorber that are arranged in parallel.

5. The integrated modular exhaust gas recovery and treatment device according to claim 3, characterized in that: The inlet of the first surface cooler is connected to the outlet of the desorption zone through a first fan, and the outlet of the first surface cooler is connected to the inlet of the adsorber.

6. The integrated modular exhaust gas recovery and treatment device according to claim 3, characterized in that: The pipeline between the condenser outlet and the second heater also passes through the air-to-air heat exchanger.

7. The integrated modular exhaust gas recovery and treatment device according to claim 3, characterized in that: Liquid outlets are provided in the air-to-air heat exchanger and the condenser, and the liquid outlets are connected to a solvent temporary storage tank.

8. The integrated modular exhaust gas recovery and treatment device according to claim 7, characterized in that: A water heat exchanger is provided on the pipeline between the liquid outlet and the solvent temporary storage tank.

9. The integrated modular exhaust gas recovery and treatment device according to claim 3, characterized in that: The adsorber is filled with activated carbon.

10. The integrated modular exhaust gas recovery and treatment device according to claim 9, characterized in that: The adsorber is provided with an activated carbon filling port at the top and an activated carbon waste discharge port at the bottom.

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