CN218179081U - Air return type low dew point dehumidifier based on finned tube adsorption coating - Google Patents
Air return type low dew point dehumidifier based on finned tube adsorption coating Download PDFInfo
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- CN218179081U CN218179081U CN202222152755.6U CN202222152755U CN218179081U CN 218179081 U CN218179081 U CN 218179081U CN 202222152755 U CN202222152755 U CN 202222152755U CN 218179081 U CN218179081 U CN 218179081U
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Abstract
The utility model relates to a dehumidification system technical field specifically is a low dew point dehumidifier of return air type based on finned tube adsorption coating, including dehumidification system and regeneration system, dehumidification system includes the dehumidification pipeline to and the import filter that sets gradually on the dehumidification pipeline, the surface cooler, first finned tube coating heat exchanger, the processing fan, the heater, outlet filter, be provided with the first air inlet pipe way of indoor return air between surface cooler and the first finned tube coating heat exchanger, regeneration system includes the regeneration pipeline, and the second air inlet pipe way of the indoor return air that sets gradually on the regeneration pipeline, second finned tube coating heat exchanger, the regeneration fan. In the return type low dew point dehumidifier based on the finned tube adsorption coating, indoor low dew point return air or fresh air mixed air after low dew point return air and surface cooling dehumidification are utilized as regenerative inlet air aiming at different low dew point requirements, so that the flow of the air treatment system for low dew point air supply is realized, and the requirements of air supply temperature and low dew point can be met simultaneously through the flow treatment.
Description
Technical Field
The utility model relates to a dehumidification system technical field, specifically speaking relates to a low dew point dehumidifier of return air type based on finned tube adsorption coating.
Background
Dehumidification is an important link in air conditioning treatment, the temperature range of an air conditioner required by the conventional process is generally 23 +/-3 ℃, and the relative humidity is required to be between 30 and 70 percent. But part of production links have higher requirements on the process: for example, in the technical occasions of the production of the anode material of the lithium ion battery of new energy, the production of the battery cell and the like, the air supply dew point is required to be between 40 ℃ below zero and 20 ℃ below zero, and the dew point in a room is controlled to be between 30 ℃ below zero and 10 ℃ below zero. Aiming at the requirements of the air supply dew point, most of the prior rotary dehumidifier units have the defects of large unit size, high equipment cost, high operation cost caused by high-grade regenerative heat source, and the like. A new technology has emerged in recent years: a fin tube type coating dehumidification technology. The essence of the method is adsorption dehumidification, a layer of reproducible drying agent is coated on the surface of fins outside a finned tube heat exchanger, and the adsorption material and air flowing between the fins outside a coil pipe are adsorbed and desorbed to realize dehumidification and regeneration; meanwhile, the adsorption material and the cooling water and the hot water in the coil pipe perform wall-dividing type heat exchange; the cooling water takes away the heat of adsorption from the inside, the temperature of the dehumidifying material is reduced, and the hot water heats the dehumidifying material from the inside for regeneration. The technology can improve the dehumidification efficiency of the dehumidification material on one hand, and can reduce the temperature requirement of regeneration on the other hand. Because isothermal dehumidification or cooling dehumidification can be realized by controlling the water inlet temperature of the cooling water, compared with rotary wheel dehumidification, sensible heat load is reduced, the grade requirement of a rotary wheel dehumidification regenerative heat source is reduced, energy-saving dehumidification is realized, and low dew point air supply can be realized by combining a corresponding air treatment process.
CN101699177A and CN105757836A disclose such dehumidification heat exchangers, and CN113108385A discloses an integral finned tube adsorption coating dehumidification unit, which can be applied to dehumidification of common comfort air conditioners, but cannot meet the dehumidification requirement under the low dew point condition.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a low dew point dehumidifier of return air type based on finned tube adsorption coating to solve the problem that proposes in the above-mentioned background art.
In order to achieve the purpose, the utility model provides a low dew point dehumidifier of return air type based on finned tube adsorption coating, including dehumidification system and regeneration system, its characterized in that: the dehumidification system comprises a dehumidification pipeline, and an inlet filter, a surface cooler, a first finned tube coating heat exchanger, a treatment fan, a heater and an outlet filter which are sequentially arranged on the dehumidification pipeline; a first air inlet pipeline for indoor return air is arranged on the dehumidification pipeline between the surface cooler and the first finned tube coating heat exchanger; after being purified and filtered by an inlet filter, outdoor fresh air is cooled and dehumidified by a surface air cooler to be processed into low-temperature high-relative-humidity air, then the low-temperature high-relative-humidity air is mixed with low-dew-point return air in a room entering a first air inlet pipeline, a part of mixed air is driven by a processing fan to be adsorbed and dehumidified by a first finned tube coating heat exchanger under the dehumidifying working condition, the mixed air is processed into low-temperature low-dew-point dry air, then the dry air is heated to a required temperature by a heater, and finally the clean and dry air is sent into the room after being purified and filtered by an outlet filter;
the regeneration system comprises a regeneration pipeline, and a second air inlet pipeline, a second finned tube coating heat exchanger and a regeneration fan, which are sequentially arranged on the regeneration pipeline and are used for returning air indoors; the other part of mixed air is driven by a regeneration fan, enters from a second air inlet pipeline, passes through a second finned tube coating heat exchanger under the regeneration working condition, takes away water vapor released by desorption of the second finned tube coating heat exchanger, and then discharges high-temperature and high-humidity regenerated exhaust air outdoors.
Preferably, a third finned tube coated heat exchanger is arranged between the first air inlet pipeline and the surface air cooler, a fourth finned tube coated heat exchanger is arranged between the second finned tube coated heat exchanger and the regenerative fan, and the third finned tube coated heat exchanger and the fourth finned tube coated heat exchanger form a group.
Preferably, the inlet of the second air inlet pipeline is connected with the dehumidification pipeline and is positioned between the first air inlet pipeline and the first finned tube coating heat exchanger.
Compared with the prior art, the beneficial effects of the utility model are that:
the return air type low dew point dehumidifier based on the finned tube adsorption coating comprises functional sections such as a filter section, a surface cooling section, an air mixing section, a fan section, a coating heat exchanger dehumidification section and a heating section, and indoor low dew point return air or fresh air mixed air obtained after low dew point return air and surface cooling dehumidification are utilized as regeneration inlet air according to different low dew point requirements, so that the process of an air treatment system for low dew point air supply is realized, and the requirements of air supply temperature and low dew point can be met simultaneously through the process treatment.
Drawings
FIG. 1 is a schematic view of a process flow of the present invention;
fig. 2 is a second schematic processing flow diagram according to the present invention.
The various reference numbers in the figures mean:
1. a dehumidification pipeline; 2. an inlet filter; 3. a surface cooler; 4. a processing fan; 5. a first finned tube coated heat exchanger; 6. a heater; 7. an outlet filter; 8. a first air inlet pipeline 9 and a second finned tube coating heat exchanger; 10. a regeneration line; 11. a regenerative fan; 12. a third finned tube coated heat exchanger; 13. a fourth finned tube coated heat exchanger; 14. a second air intake duct.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Example 1
The utility model provides a return air type low dew point dehumidifier based on finned tube adsorption coating, including dehumidification system and regeneration system, as shown in figure 1, the dehumidification system includes dehumidification pipeline 1, and import filter 2, surface cooler 3, first finned tube coating heat exchanger 5, processing fan 4, heater 6, export filter 7 that set gradually on dehumidification pipeline 1; a first air inlet pipeline 8 is arranged on the dehumidification pipeline 1 between the surface cooler 3 and the first finned tube coating heat exchanger 5; the regeneration system comprises a regeneration pipeline 10, and a second air inlet pipeline 14, a second finned tube coating heat exchanger 9 and a regeneration fan 11 which are sequentially arranged on the regeneration pipeline 10; and the inlet of the second air inlet pipeline 15 is connected with the dehumidification pipeline 1 and is positioned between the first air inlet pipeline 8 and the first finned tube coating heat exchanger 5.
The dehumidification system is single-stage air return type low dew point dehumidification, is used for the occasion with relatively high requirement on air supply dew point, adopts the mixture of the return air of a room and the fresh air after surface cooling and cooling as the treated and regenerated inlet air, can realize the stable operation under the condition that the air supply dew point is-20 ℃ (the absolute moisture content is 0.64 g/kg) at the lowest, and has the following working procedures:
and (3) air treatment flow: outdoor fresh air is purified and filtered by an inlet filter 2, is cooled and dehumidified by a surface air cooler 3 (internal low-temperature circulating chilled water) to be processed into air with low temperature and high relative humidity, is mixed with low dew point return air in a room entering from a first air inlet pipeline 8, a part of mixed air is driven by a processing fan 4 to be adsorbed and dehumidified by a first finned tube coating heat exchanger 5 (internal low-temperature circulating chilled water) in a dehumidification working condition, is processed into dry air with low temperature and low dew point, is heated to a required temperature by a heater 6, is purified and filtered by an outlet filter 7, and then is sent into the room with clean and dry air.
A regeneration wind flow: the other part of the mixed air is driven by a regeneration fan 11, enters from a second air inlet pipeline 14, is desorbed and regenerated through a second finned tube coating heat exchanger 9 (internal high-temperature circulating hot water) under the regeneration working condition, takes away the water vapor released by desorption of the second finned tube coating heat exchanger 9, and then discharges the regenerated exhaust air with high temperature and high humidity outdoors.
The first finned tube coating heat exchanger 5 and the second finned tube coating heat exchanger 9 are a group of heat exchangers in which a dehumidification working condition and a regeneration working condition are alternated.
Example 2
Fig. 2 shows another return air type low dew point dehumidifier based on a finned tube adsorption coating, which comprises a dehumidification system and a regeneration system, wherein the dehumidification system comprises a dehumidification pipeline 1, and an inlet filter 2, a surface air cooler 3, a third finned tube coating heat exchanger 12, a first finned tube coating heat exchanger 5, a processing fan 4, a heater 6 and an outlet filter 7 which are sequentially arranged on the dehumidification pipeline 1; a first air inlet pipeline 8 for indoor return air is arranged on the dehumidification pipeline 1 between the third finned tube coated heat exchanger 12 and the first finned tube coated heat exchanger 5; the regeneration system comprises a regeneration pipeline 10, and a second air inlet pipeline 14, a second finned tube coating heat exchanger 9, a fourth finned tube coating heat exchanger 13 and a regeneration fan 11 which are used for returning air indoors are sequentially arranged on the regeneration pipeline 10. The first finned tube coated heat exchanger 5 and the second finned tube coated heat exchanger 9 are heat exchangers in which a set of dehumidification working conditions and regeneration working conditions are alternated, and the third finned tube coated heat exchanger 12 and the fourth finned tube coated heat exchanger 13 are heat exchangers in which a set of dehumidification working conditions and regeneration working conditions are alternated.
The dehumidification system is double-stage return air type low dew point dehumidification and is used for the occasions with high requirements on air supply dew points, return air of a room and fresh air subjected to surface cooling are mixed to be used as processing inlet air, low dew point return air of the room is used as regeneration inlet air, stable operation can be realized at the lowest air supply dew point of-40 ℃ (the absolute moisture content is 0.079 g/kg), and the working flow is as follows:
and (3) air treatment flow: outdoor fresh air is purified and filtered by an inlet filter 2, is cooled and dehumidified by a surface air cooler 3 to be processed into low-temperature high-relative-humidity air, is subjected to adsorption and dehumidification by a third finned tube coated heat exchanger 12 (a primary coated heat exchanger and internal circulating chilled water) under a dehumidification working condition, is processed into low-temperature low-relative-humidity dry air, is mixed with part of low-dew-point return air in a room entering from a first air inlet pipeline 8, is subjected to deep adsorption and dehumidification by a first finned tube coated heat exchanger 5 (a secondary coated heat exchanger and internal low-temperature circulating chilled water) under the dehumidification working condition, is processed into low-temperature low-dew-point dry air, is driven by a processing fan 4, is heated to a required temperature by a heater 6, and is purified and filtered by an outlet filter 7 to be sent into the room with clean and dry air.
A regeneration wind flow: the other part of low dew point return air in the room is driven by a regenerative fan 11, enters from a second air inlet pipeline 14, is desorbed and regenerated through a fourth finned tube coating heat exchanger 13 (a secondary coating heat exchanger, internal high-temperature circulating hot water) under the regeneration working condition, takes away the water vapor released by the regeneration desorption, changes the regeneration exhaust air with high temperature and low humidity, passes through a second finned tube coating heat exchanger 9 (a secondary coating heat exchanger, internal high-temperature circulating hot water) under the regeneration working condition, takes away the water vapor released by the desorption of the second finned tube coating heat exchanger 9, and then discharges the regeneration exhaust air with high temperature and high humidity outdoors.
Finally, it should be noted that the filter, the surface cooler, the fan, the finned tube coated heat exchanger, etc. in the present embodiment are all common standard components or components known to those skilled in the art, and the structure and principle thereof are known to those skilled in the art through technical manuals or through routine experimentation.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only the preferred embodiments of the present invention, and is not intended to limit the present invention, and that there may be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The utility model provides a low dew point dehumidifier of return air type based on finned tube adsorption coating, includes dehumidification system and regeneration system, its characterized in that: the dehumidification system comprises a dehumidification pipeline (1), and an inlet filter (2), a surface air cooler (3), a first finned tube coating heat exchanger (5), a treatment fan (4), a heater (6) and an outlet filter (7) which are sequentially arranged on the dehumidification pipeline (1); a first air inlet pipeline (8) for indoor return air is arranged on the dehumidification pipeline (1) between the surface cooler (3) and the first finned tube coating heat exchanger (5); the method comprises the following steps that outdoor fresh air is purified and filtered through an inlet filter (2), cooled and dehumidified through a surface air cooler (3) and processed into low-temperature high-relative-humidity air, then the low-dew-point return air entering a room from a first air inlet pipeline (8) is mixed with the low-dew-point return air, a part of mixed air is driven by a processing fan (4) to be adsorbed and dehumidified through a first finned tube coating heat exchanger (5) under a dehumidification working condition, the mixed air is processed into low-temperature low-dew-point dry air, then the dry air is heated to a required temperature through a heater (6), and finally the clean and dry air is sent into the room after being purified and filtered through an outlet filter (7);
the regeneration system comprises a regeneration pipeline (10), and a second air inlet pipeline (14), a second finned tube coating heat exchanger (9) and a regeneration fan (11) which are arranged on the regeneration pipeline (10) in sequence and used for returning air indoors; the other part of mixed air is driven by a regenerative fan (11), enters from a second air inlet pipeline (14) and then passes through a second finned tube coating heat exchanger (9) under the regeneration working condition, so that water vapor released by desorption of the second finned tube coating heat exchanger (9) is taken away, and then high-temperature and high-humidity regenerative exhaust air is discharged outdoors.
2. The return air type low dew point dehumidifier based on finned tube adsorption coating of claim 1 wherein: a third finned tube coating heat exchanger (12) is arranged between the first air inlet pipeline (8) and the surface air cooler (3), a fourth finned tube coating heat exchanger (13) is arranged between the second finned tube coating heat exchanger (9) and the regenerative fan (11), and the third finned tube coating heat exchanger (12) and the fourth finned tube coating heat exchanger (13) form a group.
3. The return air type low dew point dehumidifier based on finned tube adsorption coating of claim 1 wherein: and the inlet of the second air inlet pipeline (14) is connected with the dehumidification pipeline (1) and is positioned between the first air inlet pipeline (8) and the first finned tube coating heat exchanger (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222152755.6U CN218179081U (en) | 2022-08-15 | 2022-08-15 | Air return type low dew point dehumidifier based on finned tube adsorption coating |
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| CN202222152755.6U CN218179081U (en) | 2022-08-15 | 2022-08-15 | Air return type low dew point dehumidifier based on finned tube adsorption coating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117073084A (en) * | 2023-08-21 | 2023-11-17 | 珠海格莱克科技有限公司 | Humidity control apparatus and method for stabilizing water temperature of humidity control apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117073084A (en) * | 2023-08-21 | 2023-11-17 | 珠海格莱克科技有限公司 | Humidity control apparatus and method for stabilizing water temperature of humidity control apparatus |
| CN117073084B (en) * | 2023-08-21 | 2024-04-23 | 珠海格莱克科技有限公司 | Humidity control apparatus and method for stabilizing water temperature of humidity control apparatus |
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