Water source heat pump three-partition rotating wheel dehumidifying and cooling system for mine

Abstract

The utility model discloses a mine water source heat pump three-zone rotating wheel dehumidifying and cooling system which comprises an air processing unit and a temperature adjusting unit, and the temperature adjusting unit is connected with the air processing unit to cool or heat air of the air processing unit. The air processing unit comprises a fresh air channel, a blowing air channel and a regeneration air channel, the inlet end of the blowing air channel is connected with the fresh air channel, the outlet end of the blowing air channel is connected with the inlet end of the regeneration air channel, and the outlet end of the regeneration air channel is connected with the fresh air channel to feed regeneration air into the fresh air channel. The air processing unit comprises the fresh air channel, the blowing air channel and the regeneration air channel, the blowing air channel heats and dehumidifies the air flow, the heated and dehumidified air flow serves as regeneration air to be fed into the regeneration air channel, and the regeneration air enters the fresh air channel to be cooled and dehumidified after passing through the regeneration air channel. The energy consumption of the system is reduced, and deep dehumidification of mine airflow is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling and dehumidification, in particular to a mine water source heat pump three-zone rotary dehumidification and cooling system. Background Art

[0002] Coal is the largest energy source in my country. With the increase in mining intensity and the depletion of shallow coal resources, deep mining is the future development trend. Deep mining in mines has serious problems of high temperature and high humidity heat damage. The high temperature and high humidity mine environment directly affects the health of underground workers. In addition, it will deteriorate the mechanical properties of the surrounding rock and cause instability of support structures and equipment. At present, deep high temperature and high humidity heat damage is mainly cooled by the steam compression refrigeration cycle principle. However, traditional mine cooling and dehumidification systems have problems such as poor cooling effect, large cold loss in long-distance transportation, insufficient dehumidification capacity, and high energy consumption. Therefore, there is an urgent need to develop a cooling and dehumidification system that increases dehumidification capacity and reduces energy consumption. Utility Model Content

[0003] The purpose of the present invention is to overcome the deficiencies in the above-mentioned prior art and to provide a three-zone rotary dehumidification and cooling system for a mine water source heat pump. The air handling unit of the present invention includes a fresh air channel, a purge air channel and a regeneration air channel. The airflow is heated and dehumidified through the purge air channel, and the heated and dehumidified airflow is sent into the regeneration air channel as regeneration air. After passing through the regeneration air channel, the regenerated air enters the fresh air channel for cooling and dehumidification treatment, thereby reducing the energy consumption of the system and realizing deep dehumidification of the mine airflow.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a mine water source heat pump three-zone rotary dehumidification and cooling system, comprising an air handling unit and a temperature adjustment unit, wherein the temperature adjustment unit is connected to the air handling unit to cool down or heat up the air in the air handling unit;

[0005] The air handling unit includes a fresh air channel, a purge air channel and a regeneration air channel, the inlet end of the purge air channel is connected to the fresh air channel, the outlet end of the purge air channel is connected to the inlet end of the regeneration air channel, and the outlet end of the regeneration air channel is connected to the fresh air channel to send the regeneration air into the fresh air channel;

[0006] The fresh air passage is provided with a fresh air valve, an air filter, a converging air valve, a pre-cooling surface cooler, a three-zone rotary dehumidifier, an after-cooling surface cooler and an air supply fan in sequence from the inlet end to the outlet end;

[0007] The purge air channel is provided with a diverter air valve and the three-zone rotary dehumidifier in sequence from the inlet end to the outlet end;

[0008] The regeneration air channel is provided with a heat exchanger, the three-zone rotary dehumidifier and a regeneration fan in sequence from the inlet end to the outlet end;

[0009] The three-zone rotary dehumidifier includes a regeneration side, a purge side and a treatment side. The fresh air channel is connected to the treatment side of the three-zone rotary dehumidifier, the purge air channel is connected to the purge side of the three-zone rotary dehumidifier, and the regeneration air channel is connected to the regeneration side of the three-zone rotary dehumidifier.

[0010] Preferably, the three-partition rotary dehumidifier is provided with a partition, which is a T-shaped structure. The partition divides the three-partition rotary dehumidifier into a treatment side, a purge side and a regeneration side. The area ratio of the treatment side, the purge side and the regeneration side is 2:1:1.

[0011] Preferably, the diversion air valve of the purge air channel is located between the pre-cooling surface cooler and the three-zone rotary dehumidifier of the fresh air channel to divert the low-temperature air passing through the pre-cooling surface cooler.

[0012] Preferably, the temperature regulating unit includes an evaporator, a condenser, a compressor and an expansion valve, the first outlet end of the evaporator is connected to the inlet end of the compressor, the outlet end of the compressor is connected to the first inlet end of the condenser, the first outlet end of the condenser is connected to the inlet end of the expansion valve, and the outlet end of the expansion valve is connected to the first inlet end of the evaporator.

[0013] Preferably, the second outlet end of the evaporator is connected to a cold water supply pipeline, and the cold water supply pipeline is connected to the water inlet of the pre-cooling surface cooler and the after-cooling surface cooler. The second inlet end of the evaporator is connected to a cold water return pipeline, and the cold water return pipeline is connected to the water outlet of the pre-cooling surface cooler and the after-cooling surface cooler.

[0014] Preferably, the second outlet end of the condenser is connected to a hot water supply pipeline, which is connected to the water inlet of the heat exchanger. The second inlet end of the condenser is connected to a hot water return pipeline, which is connected to the water outlet of the heat exchanger.

[0015] Preferably, a diverter valve is provided on the cold water supply pipeline between the evaporator and the pre-cooling surface cooler, and a cold water pump and a converging valve are provided on the cold water return pipeline between the evaporator and the pre-cooling surface cooler, and the cold water pump is close to the evaporator.

[0016] Preferably, a hot water pump is provided on the hot water return pipe between the condenser and the heat exchanger.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. The air handling unit of the present invention includes a fresh air channel, a purge air channel and a regeneration air channel. The airflow is heated and dehumidified through the purge air channel, and the heated and dehumidified airflow is sent into the regeneration air channel as regeneration air. After passing through the regeneration air channel, the regenerated air enters the fresh air channel for cooling and dehumidification treatment, which reduces the energy consumption of the system, realizes deep dehumidification of the mine airflow, and solves the problems of poor cooling effect and insufficient dehumidification capacity of deep mine heat damage control technology.

[0019] 2. The three-zone rotary dehumidifier of the utility model is divided into a processing side, a purge side and a regeneration side by partitions. The area ratio of the processing side, the purge side and the regeneration side is 2:1:1. It can heat up and dehumidify the air without affecting the work of the processing side, and realize deep dehumidification of the high-temperature and high-humidity airflow in the mine, meet the thermal comfort of the operators, and improve work efficiency.

[0020] 3. The utility model continuously provides cold water and hot water sources to the fresh air channel and the regeneration air channel through a circuit connected by an evaporator, a compressor, a condenser and an expansion valve, thereby achieving the purpose of energy saving and environmental protection.

[0021] The present invention will be described in further detail below through the accompanying drawings and examples. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the utility model;

[0023] Figure 2 This is a structural diagram of the three-zone rotary dehumidifier of the utility model.

[0024] Description of the accompanying drawings:

[0025] 1—Fresh air valve; 2—Air filter; 3—Mixed flow valve;

[0026] 4—Pre-cooling surface cooler; 5—Diverter air valve;

[0027] 6—Three-zone rotary dehumidifier; 7—Electric rotor;

[0028] 8—Aftercooler; 9—Air supply fan; 10—Heat exchanger;

[0029] 11—regeneration fan; 12—hot water pump; 13—condenser;

[0030] 14—compressor; 15—evaporator; 16—expansion valve;

[0031] 17—Cold water pump; 18—Diverter valve; 19—Combiner valve;

[0032] 20—belt; 21—partition plate; 22—regeneration side;

[0033] 23—Purge side; 24—Treatment side. DETAILED DESCRIPTION

[0034] like Figure 1 、 Figure 2 The utility model discloses a mine water source heat pump three-zone rotary dehumidification and cooling system, which includes an air handling unit and a temperature regulating unit. The temperature regulating unit and the air handling unit are connected to cool down or heat up the air in the air handling unit; the air handling unit includes a fresh air channel, a purge air channel and a regeneration air channel. The inlet end of the purge air channel is connected to the fresh air channel, the outlet end of the purge air channel is connected to the inlet end of the regeneration air channel, and the outlet end of the regeneration air channel is connected to the fresh air channel to send the regeneration air into the fresh air channel; the fresh air channel is provided with a fresh air valve 1, an air filter 2, a converging air valve in sequence from the inlet end to the outlet end. 3. Pre-cooling surface cooler 4, three-zone rotary dehumidifier 6, after-cooling surface cooler 8 and supply fan 9; the purge air channel is sequentially provided with a diverter air valve 5 and a three-zone rotary dehumidifier 6 from the inlet end to the outlet end; the regeneration air channel is sequentially provided with a heat exchanger 10, a three-zone rotary dehumidifier 6 and a regeneration fan 11 from the inlet end to the outlet end; the three-zone rotary dehumidifier 6 includes a regeneration side 22, a purge side 23 and a treatment side 24, the fresh air channel is connected to the treatment side 24 of the three-zone rotary dehumidifier 6, the purge air channel is connected to the purge side 23 of the three-zone rotary dehumidifier 6, and the regeneration air channel is connected to the regeneration side 22 of the three-zone rotary dehumidifier 6.

[0035] In this embodiment, the high-temperature and high-humidity mine air flow passes through the fresh air valve 1 and enters the air filter 2 for filtration. Then the mine air flow and the regenerated exhaust air are mixed through the converging air valve 3 and sent to the pre-cooling surface cooler 4 for cooling and dehumidification. The air flow after cooling and dehumidification by the pre-cooling surface cooler 4 is split into two parts by the diversion air valve 5. The first part of the air flow is heated and dehumidified by the processing side 24 of the three-partition rotary dehumidifier 6 and then passes through the after-cooling surface cooler 8 for equal cooling. The after-cooling surface cooler 8 sends the low-temperature and low-humidity air flow into the supply fan 9, and the supply fan 9 sends the low-temperature and low-humidity air flow into the mine working face, thereby cooling and dehumidifying the high-temperature and high-humidity air in the mine to meet the thermal comfort of the operators; the second part of the air flow passes through the purge side 23 of the three-partition rotary dehumidifier 6 and enters The high-temperature and low-humidity airflow discharged from the purge side 23 is sent to the heat exchanger 10 as regeneration air for humidity and temperature increase, and then sent to the regeneration side 22 of the three-partition rotary dehumidifier 6. Since the three-partition rotary dehumidifier 6 continues to rotate under the action of the electric rotor 7 and the belt 20, the desiccant material that has absorbed moisture in the treatment side 24 rotates to the regeneration side 22 with the rotation of the three-partition rotary dehumidifier 6. The high-temperature regeneration air in the regeneration side 22 releases the moisture in the desiccant material, and the moisture evaporates into water vapor as the temperature rises and is discharged; the desiccant material passing through the regeneration side 22 reaches the purge side 23 and the treatment side 24 in turn with the rotation of the three-partition rotary dehumidifier 6 to prepare for absorbing moisture for a new round of airflow, and the cycle continues. The high-temperature, low-humidity airflow is discharged by heating and dehumidifying the airflow on the purge side 23. The high-temperature, low-humidity airflow is heated by the heat exchanger 10 and used as regeneration air, which reduces the heating energy consumption of the regeneration air and solves the problem of high regeneration energy consumption of the rotary dehumidification system; and the purge side 23 heats and dehumidifies the airflow, thereby realizing pre-dehumidification of the airflow. At the same time, the purge airflow takes away part of the adsorption heat of the desiccant material in the purge side 23. When the desiccant material rotates to the processing side 24, the low-temperature desiccant material will be beneficial to the dehumidification of the airflow, that is, the dehumidification capacity of the processing side 24 is improved, thereby reducing the humidity of the air at the outlet of the processing side 24, achieving the purpose of deep dehumidification, and solving the problems of poor cooling effect and insufficient dehumidification capacity of deep mine heat damage control technology.

[0036] The air supply fan 9 and the regeneration fan 11 are axial flow fans or centrifugal fans.

[0037] A partition 21 is provided on the three-zone rotary dehumidifier 6. The partition 21 has a T-shaped structure. The partition 21 divides the three-zone rotary dehumidifier 6 into a treatment side 24, a purge side 23 and a regeneration side 22. The area ratio of the treatment side 24, the purge side 23 and the regeneration side 22 is 2:1:1.

[0038] In this embodiment, the partition 21 is made of heat-resistant and corrosion-resistant material. The end of the partition 21 is fixedly connected to the inner surface of the shell of the three-partition rotary dehumidifier 6. The partition 21 divides the three-partition rotary dehumidifier 6 into a processing side 24, a purge side 23 and a regeneration side 22 by physical isolation, ensuring that there is no cross-flow of air between the three areas of the regeneration side 22, the purge side 23 and the processing side 24, so that the partition 21 can divide the desiccant material in the three-partition rotary dehumidifier 6 into three areas, and simultaneously complete the different processing processes of the processing airflow, the purge airflow and the regeneration airflow, through the electric rotor. 7 and belt 20 drive the rotation of the three-zone rotary dehumidifier 6 to complete the adsorption and desorption process of the desiccant material, ensuring that the three-zone rotary dehumidifier 6 continuously dehumidifies the airflow. The treatment side 24 dehumidifies the treatment airflow, and the purge side 23 heats and dehumidifies the purge airflow, thereby reducing the temperature of the desiccant material on the purge side 23. Due to the strong adsorption capacity of the low-temperature desiccant material, the dehumidification effect of the desiccant material is also improved. The heated and dehumidified airflow serves as the regeneration airflow, desorbing the desiccant material through the regeneration side 22, thereby restoring the dehumidification capacity of the desiccant material. The three-zone rotary dehumidifier 6 enhances the dehumidification effect of the desiccant material through the purge side 23, achieving deep dehumidification of the airflow.

[0039] The diverter air valve 5 of the purge air channel is located between the pre-cooling surface cooler 4 and the three-zone rotary dehumidifier 6 of the fresh air channel to divert the low-temperature air passing through the pre-cooling surface cooler 4.

[0040] In this embodiment, the low-temperature air treated by the pre-cooling surface cooler 4 is diverted by the diverter air valve 5, and the diverted air respectively enters the purge side 23 and the treatment side 24 of the three-partition rotary dehumidifier 6, and the air is heated and dehumidified by the purge side 23. After the treatment side 24 heats and dehumidifies the air, the high-temperature and low-humidity air is sent to the after-cooling surface cooler 8. The after-cooling surface cooler 8 performs isohyperhumidification cooling on the high-temperature and low-humidity air and sends the low-temperature and low-humidity air to the supply fan, and part of the low-temperature air is sent to the purge side 23 through the diverter air valve 5. The desiccant material on the purge side 23 releases heat to become a low-temperature desiccant. When the desiccant material on the purge side 23 rotates to the treatment side 24, the humidity effect of the treatment side 24 on the air is improved.

[0041] The temperature regulating unit includes an evaporator 15, a condenser 13, a compressor 14 and an expansion valve 16. The first outlet end of the evaporator 15 is connected to the inlet end of the compressor 14, the outlet end of the compressor 14 is connected to the first inlet end of the condenser 13, the first outlet end of the condenser 13 is connected to the inlet end of the expansion valve 16, and the outlet end of the expansion valve 16 is connected to the first inlet end of the evaporator 15.

[0042] In this embodiment, the temperature regulating unit operates on the principle of a water source heat pump. The refrigerant absorbs heat from the water source in the evaporator 15, the temperature of the water source in the evaporator 15 decreases, and the refrigerant absorbs heat and evaporates into gas. The refrigerant enters the compressor 14 through the first outlet end of the evaporator 15 and the inlet end of the compressor 14. The compressor 14 compresses the gas refrigerant, and the temperature and pressure of the refrigerant increase. The high-temperature and high-pressure refrigerant enters the condenser 13 after passing through the outlet end of the compressor 14 and the first inlet end of the condenser 13 to release heat. The temperature of the water source in the condenser 13 increases, and the high-temperature and high-pressure refrigerant releases heat to the water source and then condenses into liquid. The liquid refrigerant enters the expansion valve 16 after passing through the first outlet end of the condenser 13 and the inlet end of the expansion valve 16. The expansion valve 16 throttles the liquid refrigerant, and the temperature and pressure of the liquid refrigerant decrease. The refrigerant enters the evaporator 15 through the outlet end of the expansion valve 16 and the first inlet end of the evaporator 15 and circulates again.

[0043] The second outlet end of the evaporator 15 is connected to a cold water supply pipeline, which is connected to the water inlets of the pre-cooling surface cooler 4 and the after-cooling surface cooler 8. The second inlet end of the evaporator 15 is connected to a cold water return pipeline, which is connected to the water outlets of the pre-cooling surface cooler 4 and the after-cooling surface cooler 8.

[0044] In this embodiment, the temperature of the water source in the evaporator 15 is reduced after the refrigerant absorbs heat, and the low-temperature water source is sent to the pre-cooling surface cooler 4 and the after-cooling surface cooler 8 along the cold water supply pipeline. The low-temperature water source in the pre-cooling surface cooler 4 and the after-cooling surface cooler 8 absorbs heat in the airflow and performs isohumidification cooling on the airflow. The water source in the pre-cooling surface cooler 4 and the after-cooling surface cooler 8 enters the cold water return pipeline through the water outlet and returns to the evaporator 15 to be cooled again. This process is repeated to achieve the goal of keeping the water source in the pre-cooling surface cooler 4 and the after-cooling surface cooler 8 at a low temperature.

[0045] The second outlet end of the condenser 13 is connected to a hot water supply pipeline, which is connected to the water inlet of the heat exchanger 10. The second inlet end of the condenser 13 is connected to a hot water return pipeline, which is connected to the water outlet of the heat exchanger 10.

[0046] In this embodiment, the water source in the condenser 13 absorbs the heat of the refrigerant and its temperature rises. The high-temperature water source enters the hot water supply pipeline along the second outlet end of the condenser 13 and reaches the heat exchanger 10. The regenerated airflow enters the heat exchanger 10 and absorbs the heat of the high-temperature water source, so that the temperature of the regenerated airflow rises to form a high-temperature airflow. The water source that releases heat in the heat exchanger 10 enters the hot water return pipeline through the water outlet and returns to the condenser 13 to be heated again. This process is repeated to achieve the goal of maintaining the high temperature of the water source in the heat exchanger 10.

[0047] A diverter valve 18 is provided on the cold water supply pipeline between the evaporator 15 and the pre-cooling surface cooler 4 , and a cold water pump 17 and a converging valve 19 are provided on the cold water return pipeline between the evaporator 15 and the pre-cooling surface cooler 4 . The cold water pump 17 is close to the evaporator 15 .

[0048] In this embodiment, the diverter valve 18 distributes and regulates the flow of cold water on the cold water supply pipeline, so that the cold water coming out of the evaporator 15 is respectively sent to the pre-cooling surface cooler 4 and the after-cooling surface cooler 8; the merging valve 19 merges the cold water return water of the pre-cooling surface cooler 4 and the after-cooling surface cooler 8 and then sends it to the evaporator 15.

[0049] A hot water pump 12 is provided on the hot water return pipe between the condenser 13 and the heat exchanger 10 .

[0050] In this embodiment, the hot water pump 12 pumps the hot water return water in the heat exchanger 10 into the condenser 13, thereby increasing the hot water flow rate between the condenser 13 and the heat exchanger 10 and ensuring that the water temperature in the heat exchanger 10 always remains at a high temperature.

[0051] When in use, open the fresh air valve 1, air filter 2, and confluence air valve 3 to allow the high-humidity and high-heat airflow in the mine to enter the fresh air valve 1 and then be filtered by the air filter 2. The high-humidity and high-heat airflow filtered by the air filter 2 is mixed with the regenerated airflow at the confluence air valve 3 and then enters the pre-cooling surface cooler 4 for cooling and dehumidification. The diversion air valve 5 diverts the mixed airflow after cooling and dehumidification into two parts. The first part of the airflow is heated and dehumidified by the treatment side 24 of the three-zone rotary dehumidifier 6 and then passes through the after-cooling surface cooler 8 for equal cooling. The after-cooling surface cooler 8 sends the low-temperature and low-humidity airflow to the supply air fan 9, and the supply air fan 9 will The low-temperature, low-humidity airflow is sent to the mine working face to solve the high humidity and high heat problems of the mine working face; the second part of the airflow is heated and dehumidified by the purge side 23 of the three-zone rotary dehumidifier 6, and the high-temperature, low-humidity airflow discharged from the purge side 23 is sent to the heat exchanger 10 as regeneration air to be heated and then sent to the regeneration side 22 of the three-zone rotary dehumidifier 6. The regeneration air regenerates and dehumidifies the desiccant material rotating to the regeneration side 22, and is then sent to the converging air valve 3 through the regeneration fan 11. The desiccant material continues to rotate to the purge side 23 and the processing side 24 in turn to heat and dehumidify the airflow, and this process is repeated. The utility model heats and dehumidifies the purge airflow through the purge side 23, and the purge airflow absorbs heat from the desiccant material, reducing the temperature of the desiccant material, thereby achieving deep dehumidification of the mine airflow.

[0052] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural transformation made to the above embodiment based on the technical essence of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A three-zone rotary dehumidification and cooling system for a mine water source heat pump, characterized by: It includes an air processing unit and a temperature adjustment unit, wherein the temperature adjustment unit is connected to the air processing unit to cool down or heat up the air in the air processing unit; The air handling unit includes a fresh air channel, a purge air channel and a regeneration air channel, the inlet end of the purge air channel is connected to the fresh air channel, the outlet end of the purge air channel is connected to the inlet end of the regeneration air channel, and the outlet end of the regeneration air channel is connected to the fresh air channel to send the regeneration air into the fresh air channel; The fresh air passage is provided with a fresh air valve (1), an air filter (2), a combined air valve (3), a pre-cooling surface cooler (4), a three-zone rotary dehumidifier (6), an after-cooling surface cooler (8) and an air supply fan (9) in sequence from the inlet end to the outlet end; The purge air channel is provided with a diversion air valve (5) and the three-zone rotary dehumidifier (6) in sequence from the inlet end to the outlet end; The regeneration air channel is provided with a heat exchanger (10), the three-zone rotary dehumidifier (6) and a regeneration fan (11) in sequence from the inlet end to the outlet end; The three-zone rotary dehumidifier (6) comprises a regeneration side (22), a purge side (23) and a treatment side (24), the fresh air channel being connected to the treatment side (24) of the three-zone rotary dehumidifier (6), the purge air channel being connected to the purge side (23) of the three-zone rotary dehumidifier (6), and the regeneration air channel being connected to the regeneration side (22) of the three-zone rotary dehumidifier (6).

2. A mine water source heat pump three-zone rotary dehumidification and cooling system according to claim 1, characterized in that: The three-zone rotary dehumidifier (6) is provided with a partition (21), the partition (21) is a T-shaped structure, and the partition (21) divides the three-zone rotary dehumidifier (6) into a treatment side (24), a purge side (23), and a regeneration side (22), and the area ratio of the treatment side (24), the purge side (23), and the regeneration side (22) is 2:1:

1.

3. A mine water source heat pump three-zone rotary dehumidification and cooling system according to claim 1, characterized in that: The diversion air valve (5) of the purge air channel is located between the pre-cooling surface cooler (4) and the three-zone rotary dehumidifier (6) of the fresh air channel to divert the low-temperature air passing through the pre-cooling surface cooler (4).

4. A mine water source heat pump three-zone rotary dehumidification and cooling system according to claim 1, characterized in that: The temperature regulating unit comprises an evaporator (15), a condenser (13), a compressor (14) and an expansion valve (16); the first outlet end of the evaporator (15) is connected to the inlet end of the compressor (14); the outlet end of the compressor (14) is connected to the first inlet end of the condenser (13); the first outlet end of the condenser (13) is connected to the inlet end of the expansion valve (16); and the outlet end of the expansion valve (16) is connected to the first inlet end of the evaporator (15).

5. A mine water source heat pump three-zone rotary dehumidification and cooling system according to claim 4, characterized in that: The second outlet end of the evaporator (15) is connected to a cold water supply pipeline, and the cold water supply pipeline is connected to the water inlets of the pre-cooling surface cooler (4) and the after-cooling surface cooler (8). The second inlet end of the evaporator (15) is connected to a cold water return pipeline, and the cold water return pipeline is connected to the water outlets of the pre-cooling surface cooler (4) and the after-cooling surface cooler (8).

6. A mine water source heat pump three-zone rotary dehumidification and cooling system according to claim 4, characterized in that: The second outlet end of the condenser (13) is connected to a hot water supply pipeline, and the hot water supply pipeline is connected to the water inlet of the heat exchanger (10). The second inlet end of the condenser (13) is connected to a hot water return pipeline, and the hot water return pipeline is connected to the water outlet of the heat exchanger (10).

7. A mine water source heat pump three-zone rotary dehumidification and cooling system according to claim 5, characterized in that: A diverter valve (18) is provided on the cold water supply pipeline between the evaporator (15) and the pre-cooling surface cooler (4), and a cold water pump (17) and a converging valve (19) are provided on the cold water return pipeline between the evaporator (15) and the pre-cooling surface cooler (4), wherein the cold water pump (17) is close to the evaporator (15).

8. A mine water source heat pump three-zone rotary dehumidification and cooling system according to claim 6, characterized in that: A hot water pump (12) is provided on the hot water return pipe between the condenser (13) and the heat exchanger (10).

Images