Heat pipe energy-saving dehumidifier based on finned tube adsorption coating

Abstract

The utility model discloses a heat pipe energy-saving dehumidifier based on a finned tube adsorption coating, and relates to the technical field of dehumidification equipment. Comprising a dehumidification system and a regeneration system, the dehumidification system comprises a dehumidification pipeline, and a first inlet filter, a first heat exchange unit of a first heat pipe heat exchanger, a surface air cooler, a processing fan, a first finned tube coating heat exchanger, a second heat exchange unit of the first heat pipe heat exchanger, a first heater and an outlet filter which are sequentially arranged on the dehumidification pipeline; an air inlet pipeline for indoor return air to enter is arranged on the dehumidification pipeline between the surface air cooler and the processing fan; and the regeneration system comprises a regeneration pipeline, and a second inlet filter, a heat exchange unit III of a second heat pipe heat exchanger, a second heater, a regeneration fan, a second finned tube coating heat exchanger and a heat exchange unit IV of the second heat pipe heat exchanger which are sequentially arranged on the regeneration pipeline. And pre-cooling and pre-heating of the heat pipe heat exchanger are fully utilized, so that energy consumption is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of dehumidification equipment, in particular to a heat pipe energy-saving dehumidifier based on fin tube adsorption coating. Background Art

[0002] The essence of coating dehumidification is adsorption dehumidification. Specifically, a layer of regenerable desiccant is coated on the fin surface of the fin-tube heat exchanger as an adsorption material, and the fin tube is used to perform inter-wall heat exchange between air, cooling water, and regenerated hot water. The cooling water takes away the adsorption heat from the inside to lower the temperature, so that the desiccant adsorbs and dehumidifies the air. The regenerated hot water is heated from the inside, so that the desiccant is heated and regenerated. On the one hand, the dehumidification efficiency of the dehumidification material can be improved, and on the other hand, the temperature requirement for regeneration can be reduced. By controlling the inlet and outlet temperatures of the cooling water, isothermal dehumidification or cooling dehumidification can also be achieved.

[0003] For example, CN217929025U discloses a low-humidity dehumidifier based on fin tube adsorption coating. The dehumidifier unit uses a fin tube adsorption coating heat exchanger for adsorption dehumidification, which is processed into low-temperature and low-relative humidity dry air, and then heated to the required temperature by a heater, and then purified and filtered by an outlet filter, and the clean and dry air is sent into the room or drying equipment.

[0004] Although this dehumidification technology can meet the air supply requirements, the air humidity and temperature after dehumidification are also low, but the low-temperature dry air supplied after dehumidification cannot be directly delivered to the room. For occasions requiring high air supply temperature, further heating treatment is required, resulting in additional energy loss caused by the offset of cold and heat, and the heat generated by regeneration is not fully recycled, which greatly reduces the energy-saving effect of this technology. Utility Model Content

[0005] The utility model aims to provide a heat pipe energy-saving dehumidifier based on fin tube adsorption coating, which solves the problem of high energy consumption and poor energy-saving effect in the pre- and post-processing process of dehumidification and regeneration air supply of existing equipment.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions: a heat pipe energy-saving dehumidifier based on fin tube adsorption coating, including a dehumidification system and a regeneration system, characterized in that: the dehumidification system includes a dehumidification pipeline, and a first inlet filter, a heat exchange unit 1 of a first heat pipe heat exchanger, a surface cooler, a processing fan, a first fin tube coating heat exchanger, a heat exchange unit 2 of the first heat pipe heat exchanger, a first heater, and an outlet filter are sequentially arranged on the dehumidification pipeline, and an air inlet pipeline for indoor return air to enter is arranged on the dehumidification pipeline between the surface cooler and the processing fan;

[0007] After being purified and filtered by the first inlet filter, the outdoor fresh air is cooled and dehumidified in turn by the heat exchange unit 1 and the surface cooler, and processed into low-temperature and high-relative-humidity air. Together with the indoor return air, it is driven by the processing fan and passes through the first fin tube coating heat exchanger in the dehumidification working condition for adsorption and dehumidification, and is processed into low-temperature and low-relative-humidity dry air. Then, it is heated to the required temperature by the heat exchange unit 2 and the first heater in turn, and then purified and filtered by the outlet filter, and the clean and dry air is sent to the room or drying equipment;

[0008] The regeneration system includes a regeneration pipeline, and a second inlet filter, a heat exchange unit three of a second heat pipe heat exchanger, a second heater, a regeneration fan, a second fin tube coating heat exchanger, and a heat exchange unit four of the second heat pipe heat exchanger, which are sequentially arranged on the regeneration pipeline;

[0009] The outdoor fresh air is purified and filtered by the second inlet filter, and then preliminarily heated by the heat exchange unit 3. The regeneration fan drives it to pass through the second fin tube coating heat exchanger in the regeneration condition for regeneration and desorption, and takes away the water vapor released by the regeneration and desorption. The high-temperature and high-humidity regeneration exhaust air is cooled by the heat exchange unit 4 and discharged to the outside as normal-temperature and high-humidity air.

[0010] The first fin tube coating heat exchanger and the second fin tube coating heat exchanger are a group and are rotated according to the dehumidification and regeneration conditions.

[0011] A further technical solution is that a first heat pump is arranged on the dehumidification pipeline, and the first heat pump includes a compressor, a first heat exchange unit, a throttle valve, and a second heat exchange unit connected in sequence. The first heat exchange unit is arranged between heat exchange unit one and the surface cooler, and the second heat exchange unit is arranged between the first fin tube coated heat exchanger and heat exchange unit two.

[0012] A further technical solution is that a first heat pump is arranged on the regeneration pipeline, and the first heat pump includes a compressor, a third heat exchange unit, a throttle valve, and a fourth heat exchange unit connected in sequence. The third heat exchange unit and the fourth heat exchange unit are arranged in sequence between the second inlet filter and the heat exchange unit three.

[0013] Compared with the prior art, the utility model has the following beneficial effects: in a heat pipe energy-saving dehumidifier based on fin tube adsorption coating, the evaporation end of the heat pipe heat exchanger pre-cools and dehumidifies the fresh air, and then uses the surface cooler to further cool and dehumidify, removes part of the moisture in the fresh air, and the obtained low-temperature and high-humidity air, together with the indoor return air, is used as the inlet air of the fin tube coating heat exchanger, and after deep adsorption and dehumidification, low-humidity air supply is achieved, and then preheated by the condensation end of the heat pipe heat exchanger, and then heated by the heater, the low-humidity inlet air after treatment is quickly adjusted to the required air supply temperature; by setting a filter to filter the inlet and supply air, the pre-cooling and preheating of the heat pipe heat exchanger is fully utilized, which greatly reduces energy consumption. In addition, a heat pump can be added to the dehumidification pipeline and the regeneration pipeline, and further heat is exchanged through the exchange between the heat pump evaporator and the condenser, which greatly reduces the heat exchange energy consumption of the subsequent surface cooler and heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of Example 1 of the utility model.

[0015] Figure 2 This is a schematic diagram of the structure in Example 2 of the utility model.

[0016] Figure 3 This is a schematic diagram of the structure in Example 3 of the utility model.

[0017] Figure 4 This is a schematic diagram of the structure in Example 4 of the utility model.

[0018] In the figure: 1-dehumidification pipeline, 2-first inlet filter, 3-first heat pipe heat exchanger, 31-heat exchange unit one, 32-heat exchange unit two, 4-surface cooler, 5-processing fan, 6-first fin tube coating heat exchanger, 7-first heater, 8-outlet filter, 9-regeneration pipeline, 10-second inlet filter, 11-second heat pipe heat exchanger, 111-heat exchange unit three, 112-heat exchange unit four, 12-second heater, 13-regeneration fan, 14-second fin tube coating heat exchanger, 15-first heat pump, 151-first heat exchange unit, 152-second heat exchange unit, 16-second heat pump, 161-third heat exchange unit, 162-fourth heat exchange unit, 17-air inlet pipeline. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0020] Example 1

[0021] This embodiment 1 is applicable to the scenario where the energy consumption of the pre- and post-processing process of dehumidification and regeneration air supply is large and the energy-saving effect is poor, so as to achieve the effect of energy saving and consumption reduction; Figure 1 A heat pipe energy-saving dehumidifier based on fin tube adsorption coating is shown, including a dehumidification system and a regeneration system. The dehumidification system includes a dehumidification pipeline 1, and a first inlet filter 2, a heat exchange unit 1 31 of a first heat pipe heat exchanger 3, a surface cooler 4, a processing fan 5, a first fin tube coating heat exchanger 6, a heat exchange unit 2 32 of the first heat pipe heat exchanger 3, a first heater 7, and an outlet filter 8, which are sequentially arranged on the dehumidification pipeline 1. An air inlet pipeline 17 for indoor return air to enter is arranged on the dehumidification pipeline 1 between the surface cooler 4 and the processing fan 5.

[0022] The regeneration system includes a regeneration pipeline 9, and a second inlet filter 10, a heat exchange unit three 111 of a second heat pipe heat exchanger 11, a second heater 12, a regeneration fan 13, a second fin tube coating heat exchanger 14, and a heat exchange unit four 112 of the second heat pipe heat exchanger 11, which are sequentially arranged on the regeneration pipeline 9.

[0023] The medium in the heat pipe heat exchanger is heated at the evaporation end and quickly vaporizes, diffuses to the condensation end to release heat and condense, and then flows back to the evaporation end, and the cycle continues.

[0024] Processing air flow: At this time, the heat exchange unit 1 31 serves as the evaporation end, and the heat exchange unit 2 32 serves as the condensation end. After being purified and filtered by the first inlet filter 2, the outdoor fresh air passes through the heat exchange unit 1 31 and the surface cooler 4 in turn for cooling and dehumidification, and is processed into low-temperature and high-relative-humidity air. Together with the indoor return air, it passes through the first fin tube coating heat exchanger 6 in the dehumidification working condition for adsorption and dehumidification, and is processed into low-temperature and low-relative-humidity dry air. Then, it passes through the heat exchange unit 2 32 and the first heater 7 in turn to be heated to the required temperature, and then, after being purified and filtered by the outlet filter 8, the clean and dry air is sent to the room or drying equipment;

[0025] Regeneration air process: the heat exchange unit three 111 serves as the condensing end, and the heat exchange unit four 112 serves as the evaporating end. The outdoor fresh air is purified and filtered by the second inlet filter 10, and then preliminarily heated by the heat exchange unit three 111. The regeneration fan 13 drives it to pass through the second fin tube coating heat exchanger 14 in the regeneration condition for regeneration and desorption, and takes away the water vapor released by the regeneration and desorption. The high-temperature and high-humidity regeneration exhaust air is discharged to the outside as normal temperature and high-humidity air after heat recovery and cooling by the heat exchange unit four 112.

[0026] When the first fin-tube coated heat exchanger 6 is saturated with adsorption, the air duct is switched by the air valve, so that the first fin-tube coated heat exchanger 6 is rotated into the regeneration air flow to perform the regeneration condition; similarly, after the second fin-tube coated heat exchanger 14 is completely regenerated, the air duct is switched by the air valve, so that the second fin-tube coated heat exchanger 14 is rotated into the treatment air flow to perform the dehumidification condition; by continuously rotating the circulating fin-tube coated heat exchanger, the demand for continuous dehumidification is met;

[0027] The above device precools the fresh air through the heat pipe heat exchanger, uses the heat for heating after dehumidification, and recovers the heat of the regenerated air through the heat pipe heat exchanger during regeneration for preheating the fresh air, thereby reducing the energy consumption of the dehumidification and regeneration processes.

[0028] Example 2

[0029] This embodiment 2 is suitable for scenarios where the energy consumption before and after the dehumidification air supply process is large, the energy consumption before and after the regeneration air supply process is large, and the energy saving effect is poor, such as Figure 2 As shown, further energy saving and consumption reduction is achieved; a first heat pump 15 is arranged on the dehumidification pipeline 1 in Example 1, and the first heat pump 15 includes a compressor, a first heat exchange unit 151, a throttle valve, and a second heat exchange unit 152 connected in sequence. The first heat exchange unit 151 is arranged between the heat exchange unit 1 31 and the surface cooler 4, and the second heat exchange unit 152 is arranged between the first fin tube coating heat exchanger 6 and the heat exchange unit 2 32. The first heat exchange unit 151 is an evaporator, and the second heat exchange unit 152 is a condenser. Its working process is as follows:

[0030] Air treatment process: At this time, the heat exchange unit 1 31 serves as the evaporation end, and the heat exchange unit 2 32 serves as the condensation end. The outdoor fresh air is purified and filtered by the first inlet filter 2, pre-cooled by the heat exchange unit 1 31, and further cooled and dehumidified by the first heat exchange unit 151 as an evaporator. It is cooled and dehumidified again by the surface cooler 4 to be processed into low-temperature and high-relative-humidity air. Together with the indoor return air, it is driven by the treatment fan 5 and passes through the first fin tube coating heat exchanger 6 in the dehumidification working condition for adsorption and dehumidification, and is processed into low-temperature and low-relative-humidity dry air. Then, it passes through the second heat exchange unit 152, the heat exchange unit 2 32, and the first heater 7 in turn to be heated to the required temperature, and then purified and filtered by the outlet filter 8, and the clean and dry air is sent to the room or drying equipment;

[0031] Regeneration air process: the heat exchange unit three 111 serves as the condensing end, and the heat exchange unit four 112 serves as the evaporating end. The outdoor fresh air is purified and filtered by the second inlet filter 10, and then preliminarily heated by the heat exchange unit three 111. The regeneration fan 13 drives it to pass through the second fin tube coating heat exchanger 14 in the regeneration condition for regeneration and desorption, and takes away the water vapor released by the regeneration and desorption. The high-temperature and high-humidity regeneration exhaust air is discharged to the outside as normal temperature and high-humidity air after heat recovery and cooling by the heat exchange unit four 112.

[0032] The first fin tube coating heat exchanger 6 and the second fin tube coating heat exchanger 14 are a group and are rotated according to the dehumidification and regeneration conditions to meet the demand for continuous dehumidification.

[0033] In the process, heat is further exchanged through the exchange between the heat pump evaporator and the condenser, which greatly reduces the heat exchange energy consumption of the subsequent surface cooler and heater.

[0034] Example 3

[0035] This embodiment 3 is suitable for scenarios where the energy consumption before and after the dehumidification air supply process is large, the energy consumption before and after the regeneration air supply process is large, and the energy saving effect is poor, so as to further save energy and reduce consumption; Figure 3 As shown, a second heat pump 16 is arranged on the regeneration pipeline 9 in Example 1, and the second heat pump 16 includes a compressor, a third heat exchange unit 161, a throttle valve, and a fourth heat exchange unit 162 connected in sequence, and the third heat exchange unit 161 and the fourth heat exchange unit 162 are arranged in sequence between the second inlet filter 10 and the heat exchange unit 111. The third heat exchange unit 161 is an evaporator, and the fourth heat exchange unit 162 is a condenser.

[0036] Processing air flow: At this time, the heat exchange unit 1 31 serves as the evaporation end, and the heat exchange unit 2 32 serves as the condensation end. After being purified and filtered by the first inlet filter 2, the outdoor fresh air passes through the heat exchange unit 1 31 and the surface cooler 4 in turn for cooling and dehumidification, and is processed into low-temperature and high-relative-humidity air. Together with the indoor return air, it passes through the first fin tube coating heat exchanger 6 in the dehumidification working condition for adsorption and dehumidification, and is processed into low-temperature and low-relative-humidity dry air. Then, it passes through the heat exchange unit 2 32 and the first heater 7 in turn to be heated to the required temperature, and then, after being purified and filtered by the outlet filter 8, the clean and dry air is sent to the room or drying equipment;

[0037] Regeneration air process: the heat exchange unit three 111 serves as the condensing end, and the heat exchange unit four 112 serves as the evaporating end. The outdoor fresh air is purified and filtered by the second inlet filter 10, first dehumidified by the third heat exchange unit 161 evaporator, then preheated by the fourth heat exchange unit 162 condenser, and then heated again by the heat exchange unit three 111. The regeneration fan 13 drives it to pass through the second fin tube coated heat exchanger 14 in the regeneration condition for regeneration and desorption, and takes away the water vapor released by the regeneration and desorption. The high-temperature and high-humidity regeneration exhaust air is discharged to the outside as normal temperature and high-humidity air after heat recovery and cooling by the heat exchange unit four 112.

[0038] The first fin tube coating heat exchanger 6 and the second fin tube coating heat exchanger 14 are a group and are rotated according to the dehumidification and regeneration conditions to meet the demand for continuous dehumidification.

[0039] During the process, the heat pump first reduces the humidity in the fresh air, improves the heating efficiency in subsequent processes, and improves the regeneration efficiency.

[0040] Example 4

[0041] This embodiment 4 is applicable to the scene where the energy consumption of the pre- and post-processing process of dehumidification and regeneration air supply is large and the energy saving effect is poor, so as to achieve the effect of energy saving and consumption reduction; Figure 4 As shown, on the basis of Example 1, the dehumidification pipeline 1 and the regeneration pipeline 9 are both provided with heat pumps, and the working process is as follows:

[0042] Air treatment process: At this time, the heat exchange unit 1 31 serves as the evaporation end, and the heat exchange unit 2 32 serves as the condensation end. The outdoor fresh air is purified and filtered by the first inlet filter 2, pre-cooled by the heat exchange unit 1 31, and further cooled and dehumidified by the first heat exchange unit 151 as an evaporator. It is cooled and dehumidified again by the surface cooler 4 to be processed into low-temperature and high-relative-humidity air. Together with the indoor return air, it is driven by the treatment fan 5 and passes through the first fin tube coating heat exchanger 6 in the dehumidification working condition for adsorption and dehumidification, and is processed into low-temperature and low-relative-humidity dry air. Then, it passes through the second heat exchange unit 152, the heat exchange unit 2 32, and the first heater 7 in turn to be heated to the required temperature, and then purified and filtered by the outlet filter 8, and the clean and dry air is sent to the room or drying equipment;

[0043] Regeneration air process: the heat exchange unit three 111 serves as the condensing end, and the heat exchange unit four 112 serves as the evaporating end. The outdoor fresh air is purified and filtered by the second inlet filter 10, first dehumidified by the third heat exchange unit 161 evaporator, then preheated by the fourth heat exchange unit 162 condenser, and then heated again by the heat exchange unit three 111. The regeneration fan 13 drives it to pass through the second fin tube coated heat exchanger 14 in the regeneration condition for regeneration and desorption, and takes away the water vapor released by the regeneration and desorption. The high-temperature and high-humidity regeneration exhaust air is discharged to the outside as normal temperature and high-humidity air after heat recovery and cooling by the heat exchange unit four 112.

[0044] The first fin tube coating heat exchanger 6 and the second fin tube coating heat exchanger 14 are a group and are rotated according to the dehumidification and regeneration conditions to meet the demand for continuous dehumidification.

[0045] Although the utility model is described herein with reference to a number of illustrative embodiments of the utility model, it should be understood that those skilled in the art may devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the disclosure, drawings, and claims of the present application, various modifications and improvements may be made to the components or layout. In addition to the modifications and improvements made to the components or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A heat pipe energy-saving dehumidifier based on fin tube adsorption coating, including a dehumidification system and a regeneration system, characterized in that: The dehumidification system comprises a dehumidification pipeline (1), and a first inlet filter (2), a heat exchange unit 1 (31) of a first heat pipe heat exchanger (3), a surface cooler (4), a processing fan (5), a first fin tube coating heat exchanger (6), a heat exchange unit 2 (32) of the first heat pipe heat exchanger (3), a first heater (7), and an outlet filter (8) which are sequentially arranged on the dehumidification pipeline (1); an air inlet pipeline (17) for indoor return air to enter is arranged on the dehumidification pipeline (1) between the surface cooler (4) and the processing fan (5); After being purified and filtered by the first inlet filter (2), the outdoor fresh air is cooled and dehumidified in turn by the heat exchange unit 1 (31) and the surface cooler (4) to be processed into low-temperature and high-relative-humidity air. Together with the indoor return air, it is driven by the processing fan (5) and passes through the first fin tube coating heat exchanger (6) in the dehumidification working condition for adsorption and dehumidification to be processed into low-temperature and low-relative-humidity dry air. It is then heated to the required temperature by the heat exchange unit 2 (32) and the first heater (7) in turn, and then purified and filtered by the outlet filter (8), and the clean and dry air is sent to the room or drying equipment; The regeneration system comprises a regeneration pipeline (9), and a second inlet filter (10) arranged in sequence on the regeneration pipeline (9), a heat exchange unit three (111) of a second heat pipe heat exchanger (11), a second heater (12), a regeneration fan (13), a second fin tube coating heat exchanger (14), and a heat exchange unit four (112) of the second heat pipe heat exchanger (11); The outdoor fresh air is purified and filtered by the second inlet filter (10), and then preliminarily heated by the heat exchange unit three (111). The regeneration fan (13) drives the fresh air to pass through the second fin tube coating heat exchanger (14) in the regeneration condition for regeneration and desorption, and takes away the water vapor released by the regeneration and desorption. The high-temperature and high-humidity regeneration exhaust air is cooled by the heat exchange unit four (112) and then discharged to the outside as normal-temperature and high-humidity air. The first fin tube coating heat exchanger (6) and the second fin tube coating heat exchanger (14) form a group and are rotated according to dehumidification and regeneration conditions.

2. The heat pipe energy-saving dehumidifier based on fin tube adsorption coating according to claim 1 is characterized in that: The dehumidification pipeline (1) is provided with a first heat pump (15), the first heat pump (15) comprising a compressor, a first heat exchange unit (151), a throttle valve, and a second heat exchange unit (152) which are connected in sequence, the first heat exchange unit (151) being arranged between heat exchange unit 1 (31) and the surface cooler (4), and the second heat exchange unit (152) being arranged between the first fin tube coating heat exchanger (6) and heat exchange unit 2 (32).

3. The heat pipe energy-saving dehumidifier based on fin tube adsorption coating according to claim 1 is characterized in that: The regeneration pipeline (9) is provided with a second heat pump (16), the second heat pump (16) comprising a compressor, a third heat exchange unit (161), a throttle valve, and a fourth heat exchange unit (162) which are connected in sequence, and the third heat exchange unit (161) and the fourth heat exchange unit (162) are arranged in sequence between the second inlet filter (10) and the heat exchange unit three (111).

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