Direct expansion type precooling temperature adjusting and reheating air adjusting device
Through the direct expansion pre-cooling and temperature regulation and reheating air conditioning device, the high-temperature heat pump system is used to replace the refrigerated water meter cooler, which solves the problem of large energy consumption of traditional dehumidifiers, and achieves energy saving and consumption reduction and efficient dehumidification.
Patent Information
- Application Number
- CN202422638887.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-10-30
AI Technical Summary
Traditional rotor dehumidifiers consume a lot of energy, requiring the refrigerated water meter cooler to pre-cool and cool again, and the regeneration of the rotor consumes a lot of electrical energy or high-temperature steam.
Direct expansion pre-cooling and reheating air conditioning device are adopted, and the high-temperature heat pump evaporator is used to directly expand and absorb heat and cool down, replacing the refrigerated water meter cooler, combining the first and second heat pump systems with the dehumidification wheel to form a reheating air conditioning module, and using the heat of the heat pump system to recover the heated regenerated air.
Save energy, reduce operating costs, save air-conditioning and refrigerated water main unit, water pump and pipeline equipment, reduce installation space, and improve dehumidification efficiency.
Smart Images
Figure CN223307033U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dehumidification and reheating regulating equipment, in particular to a direct expansion pre-cooling temperature regulating and reheating air regulating device. Background Art
[0002] In order to ensure a good dehumidification effect, traditional rotary dehumidifiers must first use a refrigerated water surface cooler to pre-cool the treated air, and then use the rotary wheel for adsorption dehumidification. Moreover, the temperature of the treated air after adsorption is relatively high, so the refrigerated water surface cooler must be used again to cool the treated dry air. At the same time, the rotary wheel regeneration consumes a large amount of electricity or high-temperature steam, which is a huge energy consumption. Utility Model Content
[0003] In response to the above-mentioned technical problems to be solved, a direct expansion pre-cooling temperature control and reheat air conditioning device is provided, which utilizes the high-temperature heat pump evaporator to directly expand and absorb heat to cool and refrigerate, replacing the traditional chilled water meter cooler. It not only eliminates the air-conditioning chilled water main unit, water pump, chilled water pipes and other equipment and pipelines, but also saves equipment installation space and costs to a great extent.
[0004] To achieve the above-mentioned objectives, the utility model discloses a direct expansion pre-cooling temperature control and reheat air conditioning device, comprising a first heat pump system and a second heat pump system connected through a dehumidification rotor, wherein the first evaporator in the first heat pump system is arranged between the treated air inlet and the dehumidification rotor, the second evaporator in the second heat pump system is arranged between the dehumidification rotor and the dry air outlet, and the first reheat condenser connected to the first heat pump system, the second reheat condenser connected to the second heat pump system, and the regenerative auxiliary heating are connected in series with the dehumidification rotor to form a reheat air conditioning module.
[0005] Furthermore, the first evaporator outlet is connected to the first compressor through the first gas-liquid separator, and the first oil separator on the other side of the first compressor is respectively connected to the first refrigerant flow regulating valve and the second refrigerant flow regulating valve to adjust and control the heat dissipation of the first outdoor condenser and the heating amount of the first reheat condenser. The first reheat condenser outlet is connected to the first liquid reservoir through the second one-way valve, and the first outdoor condenser outlet is connected to the first liquid reservoir through the first one-way valve. The first liquid reservoir forms a closed loop with the first evaporator through the first drying filter and the first throttling device.
[0006] Furthermore, a first process air filter and a first process air fan are provided between the first evaporator and the process air inlet.
[0007] Furthermore, the second evaporator outlet is connected to the second compressor through a second gas-liquid separator, and the second oil separator on the other side of the second compressor is respectively connected to the third refrigerant flow regulating valve and the fourth refrigerant flow regulating valve to adjust and control the heat dissipation of the second outdoor condenser and the heating amount of the second reheat condenser. The second reheat condenser outlet is connected to the second liquid reservoir through the fourth one-way valve, and the second outdoor condenser outlet is connected to the second liquid reservoir through the third one-way valve. The second liquid reservoir forms a closed loop with the second evaporator through the second drying filter and the second throttling device.
[0008] Furthermore, a first processing air volume regulating valve is provided between the second evaporator and the dry air outlet.
[0009] Furthermore, the reheat air conditioning module includes a second reheat condenser and a first reheat condenser arranged in series at the regeneration air inlet, a first regeneration air filter is arranged between the second reheat condenser and the regeneration air inlet, the other side of the first reheat condenser is connected to the dehumidification wheel through regeneration auxiliary heating, and the other side of the dehumidification wheel generates regeneration exhaust air through the first regeneration fan and the first regeneration air volume regulating valve.
[0010] Compared with the existing technology, the beneficial effects produced by the utility model are as follows: the utility model discloses a direct expansion pre-cooling temperature control and reheating air conditioning device, which uses the heat recovered from refrigeration, cooling and dehumidification to heat the rotor to regenerate air through a high-temperature pump reheat condenser, which can not only minimize or even replace electric heating and steam heating to the greatest extent, save energy and reduce operating costs, but also eliminate the air-conditioning chilled water main unit, water pump, chilled water pipe and other equipment and pipelines, and save equipment installation space and cost to a great extent. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.
[0012] Figure 1 This is a principle flow chart of the utility model.
[0013] In the figure: 1, first compressor; 2, first evaporator; 3, first outdoor condenser; 4, first reheat condenser; 5, first throttling device; 6, first liquid receiver; 7, first oil separator; 8, first gas-liquid separator; 9, first drying filter; 10, first refrigerant flow regulating valve; 11, second refrigerant flow regulating valve; 12, first non-return valve; 13, second non-return valve; 14, first process air filter; 15, first process fan; 16, dehumidification wheel; 17, first process air volume regulating valve; 18, first 1. Regeneration air filter; 19. First regeneration fan; 20. First regeneration air volume regulating valve; 21. Second compressor; 22. Second evaporator; 23. Second outdoor condenser; 24. Second reheat condenser; 25. Second throttling device; 26. Second liquid receiver; 27. Second oil separator; 28. Second gas-liquid separator; 29. Second filter drier; 30. Third refrigerant flow regulating valve; 31. Fourth refrigerant flow regulating valve; 32. Third one-way valve; 33. Fourth one-way valve; 34. Regeneration auxiliary heater;
[0014] A. Treated air; B. Dry air; C. Regenerated air; D. Regenerated exhaust air. DETAILED DESCRIPTION
[0015] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0016] An embodiment of the present utility model, as Figure 1As shown, it includes a first heat pump system and a second heat pump system connected by a dehumidification wheel 16, the first evaporator 2 in the first heat pump system is arranged between the treated air inlet and the dehumidification wheel 16, the second evaporator 22 in the second heat pump system is arranged between the dehumidification wheel 16 and the dry air outlet, the first reheat condenser 4 connected to the first heat pump system, the second reheat condenser 24 connected to the second heat pump system and the regeneration auxiliary heater 34 are connected in series with the dehumidification wheel 16 to form a reheat air conditioning module, the dehumidification wheel is composed of a special glass fiber carrier containing a small amount of titanium and active silica gel, and its honeycomb structure design can not only maximize the attachment of desiccant, increase the surface area of contact between wet air and desiccant, and improve the working efficiency of the dehumidifier, but also has high strength and can be well applied to various complex working environments. The two sets of heat pump system structures Similarly, the heat pump system is mainly composed of four major components, including the compressor, condenser, throttling device, and evaporator. The heat pump compressor continuously draws the gaseous refrigerant produced in the evaporator, compresses it into high-temperature and high-pressure superheated gas and sends it into the condenser. The refrigerant is cooled and condensed into liquid by the cooling medium in the condenser, and then passes through the expansion valve to throttle and reduce the pressure and temperature to form a gaseous and liquid refrigerant mixture before entering the evaporator. The liquid refrigerant evaporates in the evaporator and absorbs the latent heat of vaporization it needs from the cooled object. Finally, the gaseous refrigerant in the evaporator is sucked and compressed by the heat pump compressor, thereby realizing the circulation of the entire heat pump system, and using the high-temperature heat pump evaporator to directly expand, absorb heat, and cool down the temperature to replace the traditional chilled water meter cooler. It can not only save the air-conditioning chilled water main unit, water pump, chilled water pipe and other equipment and pipelines, but also save equipment installation space and cost to a large extent.
[0017] The outlet of the first evaporator 2 is connected to the first compressor 1 through the first gas-liquid separator 8. The first compressor 1 can use not only a fixed-frequency compressor but also a variable-frequency compressor. When it is in operation, the first oil separator 7 on the other side of the first compressor 1 is connected to the first refrigerant flow regulating valve 10 and the second refrigerant flow regulating valve 11 respectively to adjust and control the heat dissipation of the first outdoor condenser 3 and the heating amount of the first reheat condenser 4. The outlet of the first reheat condenser 4 is connected to the first liquid reservoir 6 through the second one-way valve 13, and the outlet of the first outdoor condenser 3 is connected to the first liquid reservoir 6 through the first one-way valve 12. The first liquid reservoir 6 forms a closed loop with the first evaporator 2 through the first drying filter 9 and the first throttling device 5. A first process air filter 14 and a first process fan 15 are provided between the first evaporator 2 and the process air inlet. The first evaporator pre-cools and dehumidifies the process air, and then further adsorbs and dehumidifies it through the rotor.
[0018] The outlet of the second evaporator 22 is connected to the second compressor 21 through a second gas-liquid separator 28. The second compressor 21 can be either a fixed-frequency compressor or a variable-frequency compressor. During operation, the second oil separator 27 on the other side of the second compressor 21 is connected to the third refrigerant flow control valve 30 and the fourth refrigerant flow control valve 31, respectively, to regulate the heat dissipation of the second outdoor condenser 23 and the heating of the second reheat condenser 24. The outlet of the second reheat condenser 24 is connected to the second liquid reservoir 26 through a fourth one-way valve 33. The outlet of the second outdoor condenser 23 is connected to the second liquid reservoir 26 through a third one-way valve 32. The second liquid reservoir 26 forms a closed circuit with the second evaporator 22 through a second filter drier 29 and a second throttling device 25. A first treated air volume control valve 17 is provided between the second evaporator 22 and the dry air outlet. The second evaporator cools and regulates the temperature of the dried process air after the rotor. The second reheat condenser uses the heat absorbed by the second evaporator during cooling and regulating, as well as the electrical energy consumed by the second compressor, to heat the regenerated air.
[0019] The reheat air conditioning module includes a second reheat condenser 24 and a first reheat condenser 4 which are arranged in series at the regeneration air inlet. A first regeneration air filter 18 is arranged between the second reheat condenser 24 and the regeneration air inlet. The other side of the first reheat condenser 4 is connected to the dehumidification wheel 16 through the regeneration auxiliary heating 34. The other side of the dehumidification wheel 16 generates regeneration exhaust air through the first regeneration fan 19 and the first regeneration air volume control valve 20. The reheat air conditioning module first uses the second reheat condenser to use the heat absorbed by the second evaporator for cooling and temperature regulation and the electric energy consumed by the second compressor to heat the regeneration air, and then uses the first reheat condenser to use the heat absorbed by the first evaporator for cooling and dehumidification and the electric energy consumed by the first compressor to heat the regeneration air after the second reheat condenser. Finally, a small amount of regeneration auxiliary heating is used to achieve the required regeneration temperature.
[0020] The working principle of this embodiment is as follows: using rotary adsorption dehumidification and high-temperature air conditioning heat pump technology, first using the first evaporator to pre-cool and dehumidify the treated air, then further adsorption dehumidification through the rotary wheel, and then using the second evaporator to cool and regulate the temperature of the dried treated air after the rotary wheel; at the same time, first using the second reheat condenser to use the heat absorbed by the second evaporator in cooling and regulating the temperature and the electric energy consumed by the second compressor to heat the regenerated air; then using the first reheat condenser to use the heat absorbed by the first evaporator in cooling and dehumidifying and the electric energy consumed by the first compressor to heat the regenerated air after the second reheat condenser; finally, using a small amount of regeneration to assist in heating the regenerated air to achieve the required regeneration temperature.
[0021] Several points that need to be explained are: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, which can be mechanical connection or electrical connection, or internal communication between two elements, or direct connection. "Up", "down", "left", "right" and the like are only used to indicate relative position relationships. When the absolute position of the described object changes, the relative position relationship may change; secondly, in this article, relational terms such as first and second are only used to distinguish one entity from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities.
[0022] The above examples are merely illustrative of the present invention and do not limit the scope of protection of the present invention. Any design that is identical or similar to the present invention falls within the scope of protection of the present invention.
Claims
1. A direct expansion pre-cooling temperature control and reheating air conditioning device, comprising a first heat pump system and a second heat pump system connected via a dehumidification wheel (16), characterized in that: The first evaporator (2) in the first heat pump system is arranged between the treated air inlet and the dehumidification wheel (16), the second evaporator (22) in the second heat pump system is arranged between the dehumidification wheel (16) and the dry air outlet, and the first reheat condenser (4) connected to the first heat pump system, the second reheat condenser (24) connected to the second heat pump system, and the regeneration auxiliary heater (34) are connected in series with the dehumidification wheel (16) to form a reheat air conditioning module.
2. A direct expansion pre-cooling temperature control and reheating air conditioning device according to claim 1, characterized in that: The outlet of the first evaporator (2) is connected to the first compressor (1) through the first gas-liquid separator (8); the first oil separator (7) on the other side of the first compressor (1) is connected to the first refrigerant flow regulating valve (10) and the second refrigerant flow regulating valve (11) respectively, so as to regulate and control the heat dissipation of the first outdoor condenser (3) and the heating amount of the first reheat condenser (4); the outlet of the first reheat condenser (4) is connected to the first liquid reservoir (6) through the second one-way valve (13); the outlet of the first outdoor condenser (3) is connected to the first liquid reservoir (6) through the first one-way valve (12); the first liquid reservoir (6) forms a closed loop with the first evaporator (2) through the first drying filter (9) and the first throttling device (5).
3. A direct expansion pre-cooling temperature control and reheating air conditioning device according to claim 2, characterized in that: A first process air filter (14) and a first process fan (15) are provided between the first evaporator (2) and the process air inlet.
4. A direct expansion pre-cooling temperature control and reheating air conditioning device according to claim 1, characterized in that: The outlet of the second evaporator (22) is connected to the second compressor (21) through the second gas-liquid separator (28), and the second oil separator (27) on the other side of the second compressor (21) is respectively connected to the third refrigerant flow regulating valve (30) and the fourth refrigerant flow regulating valve (31), so as to regulate and control the heat dissipation of the second outdoor condenser (23) and the heating amount of the second reheat condenser (24). The outlet of the second reheat condenser (24) is connected to the second liquid reservoir (26) through the fourth one-way valve (33), and the outlet of the second outdoor condenser (23) is connected to the second liquid reservoir (26) through the third one-way valve (32). The second liquid reservoir (26) forms a closed loop with the second evaporator (22) through the second drying filter (29) and the second throttling device (25).
5. A direct expansion pre-cooling temperature control and reheating air conditioning device according to claim 4, characterized in that: A first processing air volume regulating valve (17) is provided between the second evaporator (22) and the dry air outlet.
6. A direct expansion pre-cooling temperature control and reheating air conditioning device according to claim 1, characterized in that: The reheat air conditioning module comprises a second reheat condenser (24) and a first reheat condenser (4) which are arranged in series at the regeneration air inlet, a first regeneration air filter (18) is provided between the second reheat condenser (24) and the regeneration air inlet, the other side of the first reheat condenser (4) is connected to the dehumidification wheel (16) through the regeneration auxiliary heater (34), and the other side of the dehumidification wheel (16) generates regeneration exhaust air through the first regeneration fan (19) and the first regeneration air volume regulating valve (20).