Double-surface cooling type heat pump reheating cold recovery energy-saving constant-temperature and constant-humidity air conditioning unit

Abstract

The utility model discloses a double-surface cooling type heat pump reheating cold recovery energy-saving constant-temperature and constant-humidity air conditioning unit, and relates to the technical field of air conditioners. The air conditioning unit comprises a fresh air section, a primary and medium efficiency filter section, a fresh air cold water surface cooling section, a direct expansion type refrigerant dehumidification evaporation section, a return air mixing section, a sensible heat type cold water surface cooling section, a compression section, a heat pump reheating section, a humidification section, a fan section, a flow equalizing section, a medium efficiency filter section and an air outlet section which are sequentially arranged from the air inlet direction to the air outlet direction. The compressor is provided with an exhaust port and an air return port, the fresh air cold water surface cooling section is of a dehumidification type, one end of the air conditioning unit shell structure is a fresh air section, and the fresh air section is a fresh air inlet. The double-surface cooling fresh air and return air temperature and humidity independent control technology is combined with heat pump reheating for use, cold recovery is utilized in fresh air dehumidification, the energy consumption of a main machine and the energy consumption of cold water are greatly saved, and meanwhile the fresh air dehumidification effect is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to a double-surface cooling type heat pump reheating and cooling recovery energy-saving constant temperature and humidity air conditioning unit. Background Art

[0002] With the rapid development of biomedicine and high-end manufacturing industries, the market's requirements for controlled environments with constant temperature, humidity and cleanliness are increasing, and the requirements are becoming higher and higher. At the same time, the energy consumption brought about by constant temperature, humidity and clean environment control is very large. Under the guidance of the great goal of carbon peak and carbon neutrality, how to make less one-time investment, reduce maintenance costs, and achieve optimal energy saving is the huge market demand for the unlimited pursuit and development of constant temperature and humidity clean air conditioning in the biomedical and industrial fields.

[0003] In view of the combined air cabinet with independent control technology of fresh air and return air temperature and humidity in the original market, in the transition season or when the fresh air is too large, the controlled environment is dehumidified and the indoor ambient temperature is too low, and electric reheating (or steam; hot water coil) needs to be added, otherwise the temperature cannot be controlled well, and the humidity cannot meet the requirements. In addition, the energy consumption is greatly increased by adding electric heating and reheating; the one-time investment of steam heating and hot water coil heating is too large, and it cannot be implemented due to various factors of the project, and the ideal energy-saving effect cannot be achieved. Therefore, the utility model proposes a dual-meter cooling type heat pump reheating cold recovery energy-saving constant temperature and humidity air conditioning unit. Utility Model Content

[0004] Technical issues solved

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a dual-meter cooling type heat pump reheating and cooling recovery energy-saving constant temperature and humidity air-conditioning unit. The energy-saving constant temperature and humidity mode of the heat pump reheating and cooling recovery treatment on the combined air cabinet of the dual-meter cooling fresh air and return air temperature and humidity independent control technology is achieved, so that under the condition of maximum energy-saving operation and a one-time investment that is easier to accept, it is completely under the premise of optimal energy saving. It solves and satisfies the energy-saving constant temperature and humidity adjustment of the controlled area of ​​this dual-meter cooling fresh air and return air temperature and humidity independent control combined cabinet under the changes of outdoor temperature and humidity throughout the year.

[0006] Technical Solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dual-surface cooling type heat pump reheating cold recovery energy-saving constant temperature and humidity air-conditioning unit, the air-conditioning unit includes a fresh air section, a primary and secondary efficiency filter section, a fresh air cold water surface cooling section, a direct expansion refrigerant dehumidification evaporation section, a return air mixing section, a sensible heat type cold water surface cooling section, a compression section, a heat pump reheat section, a humidification section, a fan section, a flow equalization section, a secondary efficiency filter section and an air outlet section, which are arranged in sequence from the air inlet direction to the air outlet direction.

[0008] Preferably, the compression section is a compressor, and the compressor has an exhaust port and an air return port. The compression section is a compressor, and the compressor has an exhaust port and an air return port.

[0009] Preferably, the cooling section of the fresh air cooling water meter is a dehumidification type.

[0010] Preferably, it also includes an air conditioning unit shell structure, one end of the air conditioning unit shell structure is a fresh air section, the fresh air section is a fresh air inlet, and the side of the air conditioning unit shell structure away from the fresh air section is an air outlet section, the air outlet section is a fresh air outlet.

[0011] Preferably, the primary and secondary efficiency filtration section, fresh air cold water meter cooling section, direct expansion refrigerant dehumidification evaporation section, sensible heat cold water meter cooling section, compression section, heat pump reheating section, humidification section, fan section, flow equalization section, and medium efficiency filtration section are arranged in sequence in the air-conditioning unit shell structure.

[0012] Preferably, the return air mixing section is arranged on the shell structure of the air conditioning unit, and is located between the direct expansion refrigerant dehumidification evaporation section and the sensible heat type cold water meter cold section.

[0013] Beneficial effects:

[0014] Compared with the prior art, the dual-surface cooling type heat pump reheating and cooling recovery energy-saving constant temperature and humidity air conditioning unit has the following beneficial effects:

[0015] The utility model uses the dual-meter cold fresh air and return air temperature and humidity independent control technology in conjunction with the heat pump reheat to utilize cold recovery for fresh air dehumidification, which not only greatly saves the host energy consumption and cold water energy consumption, but also significantly improves the effect of fresh air dehumidification. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a system schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the compression section of the utility model.

[0019] In the figure:

[0020] 1. Fresh air section; 2. Primary and secondary efficiency filtration section; 3. Fresh air cold water meter cooling section; 4. Direct expansion refrigerant dehumidification evaporation section; 5. Return air mixing section; 6. Sensible heat type cold water meter cooling section; 7. Compression section; 8. Heat pump reheat section; 9. Humidification section; 10. Fan section; 11. Flow equalization section; 12. Medium efficiency filtration section; 13. Air outlet section; 14. Air conditioning unit shell structure; 701. Exhaust port; 702. Return air port. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 to Figure 3 As shown, the utility model provides a technical solution: a dual-meter cooling type heat pump reheat cold recovery energy-saving constant temperature and humidity air-conditioning unit, the air-conditioning unit includes a fresh air section 1, a primary and secondary efficiency filter section 2, a fresh air cold water table cooling section 3, a direct expansion refrigerant dehumidification evaporation section 4, a return air mixing section 5, a sensible heat type cold water table cooling section 6, a compression section 7, a heat pump reheat section 8, a humidification section 9, a fan section 10, a flow equalization section 11, a secondary efficiency filter section 12 and an air outlet section 13, which are arranged in sequence from the air inlet direction to the air outlet direction. Through the independent control technology of the temperature and humidity of the dual-meter cooling fresh air and the return air in combination with the heat pump reheat, the cold recovery is used in the fresh air dehumidification, which not only greatly saves the energy consumption of the host and the cold water energy consumption, but also has a leap-forward improvement in the effect of the fresh air dehumidification.

[0023] Please pay attention to Figure 3 The compression section 7 is a compressor having an exhaust port 701 and an air return port 702, and the fresh air cold water meter cold section 3 is a dehumidification type.

[0024] Please pay attention to Figure 2 It also includes an air-conditioning unit shell structure 14, one end of the air-conditioning unit shell structure 14 is a fresh air section 1, and the fresh air section 1 is a fresh air inlet. The side of the air-conditioning unit shell structure 14 away from the fresh air section 1 is an air outlet section 13, and the air outlet section 13 is a fresh air outlet. The primary and secondary efficiency filter sections 2, the fresh air cold water meter cold section 3, the direct expansion refrigerant dehumidification evaporation section 4, the sensible heat type cold water meter cold section 6, the compression section 7, the heat pump reheat section 8, the humidification section 9, the fan section 10, the flow equalization section 11, and the secondary efficiency filter section 12 are sequentially arranged in the air-conditioning unit shell structure 14, and the return air mixing section 5 is arranged on the air-conditioning unit shell structure 14. The return air mixing section 5 is arranged on the air-conditioning unit shell structure 14, and the return air mixing section 5 is located between the direct expansion refrigerant dehumidification evaporation section 4 and the sensible heat type cold water meter cold section 6.

[0025] Working principle: Through the dual-meter cold fresh air and return air temperature and humidity independent control technology in combination with the heat pump reheat, the cold recovery is used for fresh air dehumidification, which not only greatly saves the host energy consumption and cold water energy consumption, but also has a leapfrog improvement in the effect of fresh air dehumidification.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dual-surface cooling type heat pump reheating and cooling recovery energy-saving constant temperature and humidity air conditioning unit, characterized in that: The air conditioning unit comprises a fresh air section (1), a primary and secondary efficiency filter section (2), a fresh air cold water meter cooling section (3), a direct expansion refrigerant dehumidification evaporation section (4), a return air mixing section (5), a sensible heat type cold water meter cooling section (6), a compression section (7), a heat pump reheating section (8), a humidification section (9), a fan section (10), a flow equalization section (11), a secondary efficiency filter section (12) and an air outlet section (13) which are arranged in sequence from the air inlet direction to the air outlet direction.

2. According to claim 1, a dual-surface cooling type heat pump reheating and cooling recovery energy-saving constant temperature and humidity air conditioning unit, characterized in that: The compression section (7) is a compressor having an exhaust port (701) and an air return port (702).

3. According to claim 1, a dual-surface cooling type heat pump reheating and cooling recovery energy-saving constant temperature and humidity air conditioning unit, characterized in that: The fresh air cold water table cooling section (3) is of dehumidification type.

4. According to claim 1, a dual-surface cooling type heat pump reheating and cooling recovery energy-saving constant temperature and humidity air conditioning unit, characterized in that: It also comprises an air conditioning unit shell structure (14), one end of the air conditioning unit shell structure (14) is a fresh air section (1), the fresh air section (1) is a fresh air inlet, and the side of the air conditioning unit shell structure (14) away from the fresh air section (1) is an air outlet section (13), the air outlet section (13) is a fresh air outlet.

5. According to claim 1, a dual-surface cooling type heat pump reheating and cooling recovery energy-saving constant temperature and humidity air conditioning unit, characterized in that: The primary and secondary efficiency filtering section (2), the fresh air cold water meter cooling section (3), the direct expansion refrigerant dehumidification evaporation section (4), the sensible heat cold water meter cooling section (6), the compression section (7), the heat pump reheating section (8), the humidification section (9), the fan section (10), the flow equalization section (11), and the secondary efficiency filtering section (12) are sequentially arranged in the air conditioning unit shell structure (14).

6. A dual-surface cooling type heat pump reheating and cooling recovery energy-saving constant temperature and humidity air conditioning unit according to claim 1, characterized in that: The return air mixing section (5) is arranged on the air conditioning unit shell structure (14).

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