Energy-saving cold air system

Abstract

When the system works in heating and refrigerating, a first compressor pumps a high-temperature and high-pressure gaseous refrigerant into a first heating unit to release heat, the high-temperature and high-pressure gaseous refrigerant is changed into a normal-temperature and high-pressure liquid refrigerant after releasing heat, and the normal-temperature and high-pressure liquid refrigerant flows through a first expansion valve to be expanded; the expanded normal-temperature and high-pressure liquid-state refrigerant is changed into a low-temperature and low-pressure gas-liquid-state mixed refrigerant and flows into the first refrigeration unit to absorb heat, and the low-temperature and low-pressure gas-liquid-state mixed refrigerant is changed into a low-temperature and low-pressure gas-state refrigerant and enters the first compressor after absorbing heat, so that latent heat circulation is formed; in this way, the first refrigerating unit and the first heating unit do not need to consume energy, refrigerating and heating can be achieved only by conducting latent heat circulation between the first refrigerating unit and the first heating unit through refrigerants, and only the energy consumption of the first compressor needs to be provided. The system can greatly reduce the energy consumption of a cold air system and reduce the cold air cost.

Description

An energy-saving air cooling system Technical Field

[0001] This invention relates to the field of airflow refrigeration, and more particularly to an energy-saving air cooling system. Background Technology

[0002] Large factories or material storage rooms require continuous cooling, and the humidity of the cooling air needs to be controlled within a certain range. Currently, the commonly used air conditioning system uses two fans. The first fan blows air into the refrigeration unit to cool it down, and then blows the low-temperature air into the dehumidification rotor's moisture absorption zone to dehumidify the air. The dehumidified air is then blown into the room. The second fan blows air into the heating unit to heat it up, and then blows the high-temperature air into the dehumidification rotor's exhaust zone to remove moisture from the rotor, keeping it dry. In this way, the dehumidification and exhaust zones of the rotor rotate and circulate, continuously dehumidifying the air blown in by the first fan. However, this solution uses two separate refrigeration and heating units, each of which consumes a lot of energy for cooling and heating, resulting in huge energy consumption and high cost of air conditioning. Summary of the Invention

[0003] To overcome the above problems, the present invention provides an energy-saving air conditioning system. The technical solution adopted by the present invention to solve its technical problems is as follows: An energy-saving air conditioning system includes a first fan, the air outlet of the first fan is connected to a first refrigeration unit through a pipe to reduce the temperature of the airflow blown by the first fan, the first refrigeration unit is connected to the moisture absorption zone of a dehumidifying impeller through a pipe to absorb moisture in the airflow, and the airflow after moisture absorption is discharged into the room through a pipe; it also includes a second fan, the air outlet of the second fan is connected to a first heating unit through a pipe to heat the airflow blown by the second fan, the first heating unit is connected to the dehumidification zone of the dehumidifying impeller through a pipe to remove moisture from the dehumidifying impeller through the heated airflow; the first refrigeration unit and the first heating unit form a loop through a refrigerant pipe, a first compressor and a first expansion valve are installed on the refrigerant pipe, the refrigerant absorbs heat in the first refrigeration unit and releases heat in the first heating unit to form a latent heat cycle in the loop.

[0004] Furthermore, the dehumidification zone of the dehumidification rotor is connected to the cooling end of the heat pipe through a pipe, the cooling end of the heat pipe is connected to the heating end of the heat pipe through a pipe, and the heating end of the heat pipe is connected back to the second fan through a pipe to form an air duct circulation; the airflow that carries away the moisture in the dehumidification rotor condenses and precipitates moisture at the cooling end, and the airflow after precipitating moisture is heated at the heating end and then flows back into the second fan.

[0005] Furthermore, the cooling end of the heat pipe is equipped with a water outlet pipe.

[0006] Furthermore, a second refrigeration unit is installed on the pipe between the cooling end and the heating end of the heat pipe, and a second heating unit is installed on the pipe between the heating end of the heat pipe and the second fan; the second refrigeration unit condenses the airflow passing through the cooling end, and the second heating unit reheats the airflow passing through the heating end.

[0007] Furthermore, a loop is formed between the second refrigeration unit and the second heating unit through a refrigerant pipe. A second compressor and a second expansion valve are installed on the refrigerant pipe. The refrigerant absorbs heat in the second refrigeration unit and releases heat in the second heating unit to form a latent heat cycle in the loop.

[0008] Furthermore, both the first and second refrigeration units are equipped with water outlet pipes.

[0009] Furthermore, the dehumidifying impeller includes a central rotating shaft and an impeller body coaxially sleeved on the central rotating shaft. The impeller body is filled with several water-absorbing sleeves parallel to the central rotating shaft. The water-absorbing sleeves are hollow and made of water-absorbing material. Airflow enters from one end of the water-absorbing sleeve and exits from the other end to pass through the moisture absorption / dehumidification zone. The impeller body rotates through the central rotating shaft to enable the water-absorbing sleeves to pass through the moisture absorption / dehumidification zone.

[0010] Furthermore, the main body of the rotor rotates at a speed of 1-3 revolutions per minute.

[0011] The beneficial effects of this invention are as follows: The energy-saving cooling system includes a first fan, the air outlet of which is connected to a first refrigeration unit through a pipe to reduce the temperature of the airflow blown out by the first fan; the first refrigeration unit is connected to the moisture absorption zone of a dehumidifying impeller through a pipe to absorb moisture from the airflow; the airflow after moisture absorption is discharged into the room through a pipe; it also includes a second fan, the air outlet of which is connected to a first heating unit through a pipe to heat the airflow blown out by the second fan; the first heating unit is connected to the dehumidification zone of the dehumidifying impeller through a pipe to remove moisture from the dehumidifying impeller through the heated airflow; a loop is formed between the first refrigeration unit and the first heating unit through a refrigerant pipe; a first compressor and a first expansion valve are installed on the refrigerant pipe; the refrigerant absorbs heat in the first refrigeration unit and releases heat in the first heating unit to form a latent heat cycle in the loop. During operation, the first compressor pumps high-temperature, high-pressure gaseous refrigerant into the first heating unit to release heat. After releasing heat, the high-temperature, high-pressure gaseous refrigerant becomes room-temperature, high-pressure liquid refrigerant and flows through the first expansion valve to expand. The expanded room-temperature, high-pressure liquid refrigerant becomes a low-temperature, low-pressure gas-liquid mixture and flows into the first refrigeration unit to absorb heat. After absorbing heat, the low-temperature, low-pressure gas-liquid mixture becomes a low-temperature, low-pressure gaseous refrigerant and enters the first compressor, thus forming a latent heat cycle. In this way, neither the first refrigeration unit nor the first heating unit needs to consume energy themselves. Cooling and heating can be achieved simply by the latent heat cycle of the refrigerant between them. Only the energy consumption of the first compressor is required. Compared with a separate refrigeration unit for cooling and a separate heating unit for heating, this system can greatly reduce the energy consumption of the air conditioning system and reduce the cost of air conditioning. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, wherein: Figure 1 is a plan view of the energy-saving cooling system.

[0013] Drawing number markings: 100, First fan; 101, First refrigeration unit; 102, Dehumidifying impeller; 1021, Central shaft; 1022, Impeller body; 103, Second fan; 104, First heating unit; 105, Refrigerant pipe; 106, First compressor; 107, First expansion valve; 108, Heat pipe; 109, Refrigeration end; 110, Heating end; 111, Second refrigeration unit; 112, Second heating unit; 113, Second compressor; 114, Second expansion valve; 115, Water outlet pipe. Detailed Implementation

[0014] To better understand the purpose, structure, and function of this invention, the following detailed description of a specific embodiment of the "Energy-Saving Cooling System" of this invention is provided in conjunction with the accompanying drawings.

[0015] Referring to Figure 1, in this embodiment, the energy-saving cooling system includes a first fan 100. The air outlet of the first fan 100 is connected to a first refrigeration unit 101 via a pipe. The first refrigeration unit 101 cools the airflow blown out by the first fan 100, turning it into a low-temperature airflow and causing moisture to be released. The first refrigeration unit 101 is connected to the moisture absorption zone of a dehumidifying impeller 102 via a pipe. The low-temperature airflow passes through the moisture absorption zone of the dehumidifying impeller 102, and the dehumidifying impeller 102 absorbs the moisture in the low-temperature airflow. The low-temperature airflow after the moisture is absorbed is then discharged into the room through a pipe. This cooling system also includes a second fan 103. The air outlet of the second fan 103 is connected to a first heating unit 104 via a pipe. The first heating unit 104 heats the airflow blown out by the second fan 103, turning it into a high-temperature airflow. 104 is connected to the dehumidification zone of the dehumidification rotor 102 through a pipe. The high-temperature airflow passes through the dehumidification zone of the dehumidification rotor 102 to remove the moisture in the dehumidification rotor 102, thereby achieving the purpose of drying the dehumidification rotor 102. This facilitates the continuous rotation of the dehumidification rotor 102. When the dehumidification rotor 102 passes through the moisture absorption zone, it absorbs the moisture in the low-temperature airflow. When the dehumidification rotor 102 passes through the dehumidification zone, it is dried, forming a cycle of moisture absorption and drying. Furthermore, the first refrigeration unit 101 and the first heating unit 104 of this system form a loop through the refrigerant pipe 105. The refrigerant pipe 105 is equipped with a first compressor 106 and a first expansion valve 107. The refrigerant circulates in the loop, absorbing heat when passing through the first refrigeration unit 101 and releasing heat when passing through the first heating unit 104, thereby forming a latent heat cycle in the loop.

[0016] When this system is working, the specific process of the latent heat cycle is as follows: The first compressor 106 pumps high-temperature, high-pressure gaseous refrigerant into the first heating unit 104 to release heat. After releasing heat, the high-temperature, high-pressure gaseous refrigerant becomes room-temperature, high-pressure liquid refrigerant and flows through the first expansion valve 107 to expand. After expanding, the room-temperature, high-pressure liquid refrigerant becomes a low-temperature, low-pressure gas-liquid mixture and flows into the first refrigeration unit 101 to absorb heat. After absorbing heat, the low-temperature, low-pressure gas-liquid mixture becomes a low-temperature, low-pressure gaseous refrigerant and enters the first compressor 106, forming a complete latent heat cycle. This system only needs to provide energy to the first compressor 106 to achieve heat absorption in the first refrigeration unit 101 and heat release in the first heating unit 104 through the latent heat cycle. The first refrigeration unit 101 and the first heating unit 104 do not consume energy. Compared with traditional refrigerators and heaters that consume energy for cooling and heating respectively, this reduces energy consumption, saves energy, and lowers the cost of cooling air.

[0017] It should be noted that the first refrigeration unit 101 and the first heating unit 104 in this embodiment are components that can be used in the latent heat cycle in the prior art. For example, the first refrigeration unit 101 can be an evaporator component in the prior art, and the first heating unit 104 can be a condenser component in the prior art. Any unit that can achieve refrigeration / heating in the latent heat cycle in the prior art can be used as the first refrigeration unit 101 / first heating unit 104, and no specific limitation is made here. A water outlet pipe 115 is provided on the first refrigeration unit 101 to discharge some of the water that condenses into water after the airflow cools down and precipitates.

[0018] Furthermore, in this embodiment, the dehumidification zone of the dehumidification impeller 102 is connected to the cooling end 109 of the heat pipe 108 via a pipe. The cooling end 109 of the heat pipe 108 is connected to the heating end 110 of the heat pipe 108 via a pipe. The heating end 110 of the heat pipe 108 is connected back to the second fan 103 via a pipe to form an airflow circulation. The high-humidity airflow, after carrying away the moisture in the dehumidification impeller 102, passes through the cooling end 109 via a pipe. The cooling end 109 cools the high-humidity airflow and causes the high-humidity airflow to precipitate moisture, reducing its humidity. Then, the airflow after moisture precipitation passes through the heating end 110 via a pipe and is heated. The airflow heated by the heating end 110 then flows back into the second fan 103 via a pipe. The second fan 103 forms an airflow circulation for the drying operation of the dehumidifying rotor 102. Furthermore, the cooling end 109 of the heat pipe 108 is equipped with a water outlet pipe 115. During the entire circulation, only water is discharged through the water outlet pipe 115, and no waste gas is emitted, protecting the environment. Moreover, after the heating end 110 of the heat pipe 108 heats the airflow in the first stage, the airflow returning to the second fan 103 has a certain temperature. When the second fan 103 blows the airflow with a certain temperature into the first heating unit 104, the first heating unit 104 will reheat the airflow. Thus, the airflow temperature blowing towards the dehumidifying rotor 102 during the entire circulation will be higher, improving the drying effect on the dehumidifying rotor 102—achieving two goals at once.

[0019] More specifically, in this embodiment, a second refrigeration unit 111 is provided on the pipe between the cooling end 109 and the heating end 110 of the heat pipe 108, and a second heating unit 112 is provided on the pipe between the heating end 110 of the heat pipe 108 and the second fan 103. The second refrigeration unit 111 performs secondary condensation on the airflow passing through the cooling end 109, further cooling the airflow and causing water to precipitate out. The second heating unit 112 performs secondary heating on the airflow passing through the heating end 110, further increasing the airflow temperature. Thus, in the entire airflow circulation, the airflow not only has lower moisture content but also higher temperature, thereby further improving the drying effect on the dehumidifying impeller 102. A water outlet pipe 115 is also provided on the second refrigeration unit 111 to discharge some of the water that condenses into a water flow after the airflow cools and precipitates out.

[0020] Furthermore, in this embodiment, a loop is also formed between the second refrigeration unit 111 and the second heating unit 112 via a refrigerant pipe 105. A second compressor 113 and a second expansion valve 114 are installed on the refrigerant pipe 105. The refrigerant circulates in the loop, absorbing heat when passing through the second refrigeration unit 111 and releasing heat when passing through the second heating unit 112, thus forming a latent heat cycle in the loop. The specific process of the latent heat cycle is as follows: The second compressor 113 pumps high-temperature, high-pressure gaseous refrigerant into the second heating unit 112 to release heat. After releasing heat, the high-temperature, high-pressure gaseous refrigerant becomes room-temperature, high-pressure liquid refrigerant and expands after flowing through the second expansion valve 114. After expanding, the room-temperature, high-pressure liquid refrigerant becomes a low-temperature, low-pressure gas-liquid mixture refrigerant and flows into the second refrigeration unit 111 to absorb heat. After absorbing heat, the low-temperature, low-pressure gas-liquid mixture refrigerant becomes a low-temperature, low-pressure gaseous refrigerant and enters the second compressor 113, forming a complete latent heat cycle. Only the second compressor 113 needs to be supplied with energy to achieve the heat absorption of the second refrigeration unit 111 and the heat release of the second heating unit 112 through the latent heat cycle. The second refrigeration unit 111 and the second heating unit 112 do not need to consume energy, which reduces energy consumption and lowers the cost of the drying and dehumidifying impeller 102 through the circulating air duct.

[0021] It should be noted that the second refrigeration unit 111 and the second heating unit 112 in this embodiment are both components that can be used in the latent heat cycle in the prior art. For example, the second refrigeration unit 111 can be an evaporator component in the prior art, and the second heating unit 112 can be a condenser component in the prior art. Any unit that can achieve refrigeration / heating in the latent heat cycle in the prior art can be used as the second refrigeration unit 111 / second heating unit 112, and no specific limitation is made here.

[0022] More specifically, in this embodiment, the dehumidifying wheel 102 includes a central rotating shaft 1021 and a wheel body 1022 coaxially sleeved on the central rotating shaft 1021. The wheel body 1022 is filled with a number of water-absorbing sleeves parallel to the central rotating shaft 1021 in a honeycomb pattern. The water-absorbing sleeves are hollow and made of water-absorbing material, preferably water-absorbing sponge. Airflow enters from one end of the water-absorbing sleeve and exits from the other end to pass through the moisture absorption zone / moisture removal zone. In this embodiment, the lower half of the dehumidifying wheel 102 is located in the moisture absorption zone and the upper half is located in the moisture removal zone. In other embodiments, the configuration can be adjusted according to the actual situation. The wheel body 1022 rotates through the central rotating shaft 1021 to realize the water-absorbing sleeves passing through the moisture absorption zone / moisture removal zone, thereby realizing the cycle of moisture absorption and drying of the dehumidifying wheel 102. The main body of the impeller 1022 rotates at a speed of 1-3 revolutions per minute, preferably 2 revolutions per minute, to ensure that the absorbent sleeve can fully absorb moisture from the airflow in the moisture absorption zone and be fully dried by the airflow in the moisture exhaust zone.

[0023] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

[0024] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In the description of this application, "multiple" and "several" are understood as "at least two." "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. A connected to B can represent: A and B directly connected, and A and B connected through C. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

Claims

1. An energy-saving cooling system, characterized in that, The system includes a first fan (100), whose outlet is connected to a first refrigeration unit (101) via a pipe to reduce the temperature of the airflow blown out by the first fan (100). The first refrigeration unit (101) is connected to the moisture absorption zone of a dehumidifying impeller (102) via a pipe to absorb moisture from the airflow. The moisture-absorbed airflow is then discharged into the room via a pipe. The system also includes a second fan (103), whose outlet is connected to a first heating unit (104) via a pipe to supply the airflow blown out by the second fan (103). The airflow is heated, and the first heating unit (104) is connected to the dehumidification zone of the dehumidification wheel (102) through a pipe so that the moisture in the dehumidification wheel (102) can be removed by the heated airflow; the first refrigeration unit (101) and the first heating unit (104) form a loop through the refrigerant pipe (105), and the refrigerant pipe (105) is equipped with a first compressor (106) and a first expansion valve (107). The refrigerant absorbs heat in the first refrigeration unit (101) and releases heat in the first heating unit (104) so ​​as to form a latent heat cycle in the loop.

2. The energy-saving cooling system according to claim 1, characterized in that, The dehumidification zone of the dehumidification impeller (102) is connected to the cooling end (109) of the heat pipe (108) through a pipe. The cooling end (109) of the heat pipe (108) is connected to the heating end (110) of the heat pipe (108) through a pipe. The heating end (110) of the heat pipe (108) is connected back to the second fan (103) through a pipe to form an air duct circulation. The airflow that carries away the moisture in the dehumidification impeller (102) condenses and precipitates moisture after passing through the cooling end (109). The airflow after precipitating moisture is heated by the heating end (110) and then flows back into the second fan (103).

3. The energy-saving cooling system according to claim 2, characterized in that, The cooling end (109) of the heat pipe (108) is provided with a water outlet pipe (115).

4. The energy-saving cooling system according to claim 2, characterized in that, A second refrigeration unit (111) is provided on the pipe between the cooling end (109) and the heating end (110) of the heat pipe (108), and a second heating unit (112) is provided on the pipe between the heating end (110) of the heat pipe (108) and the second fan (103); the second refrigeration unit (111) condenses the airflow passing through the cooling end (109) for a second time, and the second heating unit (112) heats the airflow passing through the heating end (110) for a second time.

5. The energy-saving cooling system according to claim 4, characterized in that, A loop is formed between the second refrigeration unit (111) and the second heating unit (112) through a refrigerant pipe (105). A second compressor (113) and a second expansion valve (114) are provided on the refrigerant pipe (105). The refrigerant absorbs heat in the second refrigeration unit (111) and releases heat in the second heating unit (112) to form a latent heat cycle in the loop.

6. The energy-saving cooling system according to claim 5, characterized in that, Both the first refrigeration unit (101) and the second refrigeration unit (111) are equipped with water outlet pipes (115).

7. The energy-saving cooling system according to any one of claims 1-6, characterized in that, The dehumidifying impeller (102) includes a central rotating shaft (1021) and an impeller body (1022) coaxially sleeved on the central rotating shaft (1021). The impeller body (1022) is filled with a plurality of water-absorbing sleeves parallel to the central rotating shaft (1021). The water-absorbing sleeves are hollow and made of water-absorbing material. Airflow enters from one end of the water-absorbing sleeve and exits from the other end to pass through the moisture absorption zone / moisture exhaust zone. The impeller body (1022) rotates through the central rotating shaft (1021) to enable the water-absorbing sleeves to pass through the moisture absorption zone / moisture exhaust zone.

8. The energy-saving cooling system according to claim 7, characterized in that, The main body of the rotating wheel (1022) rotates at a speed of 1-3 revolutions per minute.

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