CN110173776A - A kind of Fresh air handing device of pre-cooling type runner humidifying - Google Patents

Abstract

The invention discloses a fresh air treatment device for pre-cooling wheel humidity adjustment, which comprises a water-cooled chiller, an air-cooled heat pump unit, a sensible heat recovery unit, and a wheel-type solid adsorption dehumidification device arranged in sequence. The chiller includes a water-cooled chiller evaporator, a water-cooled chiller compressor, a water-cooled chiller condenser, a water-cooled chiller throttle valve, and a connection with the water-cooled chiller evaporator connected in sequence along the refrigerant circulation direction. The fan coil unit of the water-cooled chiller connected to the chilled water outlet and inlet, and the cooling tower connected to the cooling water outlet and inlet of the condenser of the water-cooled chiller. The device uses the exhaust heat of the condenser to preheat the regeneration air in summer, saving or avoiding the energy consumption of the regeneration heat provided by the electric heater; in winter, the heat absorption of the evaporator is used to pre-cool the humid air , saves the cooling device for the return air, and improves the energy efficiency of the fresh air processing device.

Description

A fresh air treatment device for pre-cooling wheel humidity control

technical field

The invention belongs to the field of heating, ventilating and air-conditioning systems, and relates to a fresh air processing device for adjusting humidity with a rotary wheel.

Background technique

In the air conditioning system, according to the requirements of the current national health standards, a certain amount of fresh outdoor fresh air needs to be supplied to the room. Due to the temperature, humidity and dust content, the outdoor fresh air usually cannot be directly sent into the room, and must be subjected to heat and humidity treatment. During the cooling season, the outdoor air is usually high temperature and high humidity, and it is necessary to cool and dehumidify the outdoor air, especially in the humid areas in the southeast. The core task of the air treatment process is to dehumidify the fresh air. At present, the air-conditioning system in my country generally adopts the condensation dehumidification method, that is, the chilled water at about 7°C is used to cool down and dehumidify the air, and at the same time remove the sensible heat load and latent heat load of the building. However, the cooling and dehumidification of air through condensation dehumidification can only change the sensible heat to latent heat ratio within a certain range, while the heat-humidity ratio required for indoor environment regulation of buildings changes within a relatively large range. In this case, when the requirements for indoor air parameters are not strict, my country generally sacrifices the control of humidity and compromises by only meeting the requirements of indoor temperature, resulting in the phenomenon that the indoor relative humidity is too high or too low, which is difficult to meet. Human comfort requirements. At present, in order to meet the humidity requirements, the United States adopts the method of condensing first and then heating to expand the range of changes in the heat-humidity ratio. The energy consumption is huge due to the very low temperature of the condensed supply air and the need for reheating. Therefore, reducing the energy consumption of fresh air treatment as much as possible on the basis of meeting the indoor humidity requirements is an important link in the improvement and development of air conditioning systems.

In addition to the commonly used condensation dehumidification, there are solid adsorption dehumidification, solution absorption dehumidification, pressurized cooling dehumidification, etc. The essence of condensation dehumidification and pressurized cooling dehumidification is the same. It is necessary to cool the air below the dew point temperature (sometimes the fresh air and return air are recovered with sensible heat or full heat recovery), and condensed water is precipitated to achieve the purpose of dehumidification, and then through The reheating or secondary return air is mixed with the supply air to meet the requirements of the supply air temperature. Solution dehumidification can cool the air while dehumidifying, and directly process it to the required state point. According to whether there is external cold (heat) exchange, there are currently adiabatic solution dehumidification/regeneration and internal cooling type solution dehumidification/regeneration. Two types of devices. In the process of solid dehumidification, since the moisture absorption in contact with air is approximately an isenthalpic process, the temperature of the air will rise significantly after dehumidification, and a large amount of cooling energy will be consumed to reprocess the dehumidified high-temperature air to the desired air supply state.

During the heating season, if the air conditioner is used for heating, the fresh air is usually heated up with equal moisture content, resulting in low relative humidity of the supply air and poor thermal comfort. Therefore, a certain amount of humidity is required in the process of dealing with fresh air. Among the above-mentioned dehumidification methods, solid adsorption dehumidification and solution absorption dehumidification can humidify the treated air in winter using regeneration process.

From the above background technology, there is no new air treatment device that performs multi-stage pre-cooling and dehumidification of fresh air, and uses part of the condensation heat to heat the return air to regenerate the dehumidification wheel dehumidification system, and simultaneously realizes dual-use fresh air in winter and summer. This patent aims to propose a fresh air treatment device for wheel humidity control, using different types of refrigeration units, heat pump units and wheels to cool and dehumidify or heat and humidify the fresh air in stages, and use part of the heat exhausted by the condenser for heating and recycling in summer. The wind takes away the moisture of the hygroscopic material in the regeneration area of the rotary dehumidification device. In winter, a part of the cooling capacity of the evaporator is used to cool the return air, and the humidity required by the fresh air is provided in the dehumidification area of the rotary dehumidification device to reduce the humidity. Energy consumption for cooling dehumidification, heating regeneration, precooling and humidification.

Contents of the invention

Technical problem: The present invention provides a fresh air treatment device with a pre-cooling wheel for humidity control that makes full use of the exhaust heat of the heat pump unit in summer and reduces or avoids the high-grade energy consumption required for heating and regenerating solid hygroscopic materials. The device performs multi-stage cooling and dehumidification on the fresh air at the same time, which minimizes the total energy consumption of the refrigeration unit and the heat pump unit. Finally, solid adsorption dehumidification is adopted to avoid reheating, reduce the burden of condensation and dehumidification, and improve the fresh air treatment device. The overall energy efficiency can be achieved in winter and summer.

Technical solution: The fresh air treatment device for pre-cooling wheel humidity adjustment of the present invention includes a water-cooled chiller, an air-cooled heat pump unit, a sensible heat recovery unit, and a wheel-type solid adsorption dehumidification device arranged in sequence. The chiller includes a water-cooled chiller evaporator, a water-cooled chiller compressor, a water-cooled chiller condenser, a water-cooled chiller throttle valve, and a connection with the water-cooled chiller evaporator connected in sequence along the refrigerant circulation direction. The fan coil unit of the water-cooled chiller connected to the chilled water outlet and inlet, the cooling tower connected to the cooling water outlet and inlet of the condenser of the water-cooled chiller, the cooling of the fan coil of the water-cooled chiller A chilled water pump is arranged between the water outlet end and the chilled water inlet end of the water-cooled chiller evaporator, and a cooling water pump is set between the cooling water outlet end of the cooling tower and the cooling water inlet end of the water-cooled chiller condenser, The refrigerant outlet end of the water-cooled chiller throttle valve is connected to the refrigerant inlet end of the water-cooled chiller evaporator through a pipeline, and the refrigerant inlet end of the water-cooled chiller compressor is connected to the water-cooled chiller compressor through a pipeline. The refrigerant outlet port connection of the chiller evaporator. The air-cooled heat pump unit includes the evaporator of the air-cooled heat pump unit, the compressor of the air-cooled heat pump unit, the four-way reversing valve of the air-cooled heat pump unit, the condenser of the air-cooled heat pump unit and the throttle valve of the air-cooled heat pump unit, The refrigerant outlet end of the condenser of the air-cooled heat pump unit is connected to the refrigerant inlet port of the evaporator of the air-cooled heat pump unit through the throttle valve of the air-cooled heat pump unit, and the refrigerant of the compressor of the air-cooled heat pump unit The inlet port and the refrigerant outlet port are respectively connected to any two opposite interface ports of the four-way reversing valve of the air-cooled heat pump unit, and the refrigerant outlet port of the evaporator of the air-cooled heat pump unit condenses with the air-cooled heat pump unit The refrigerant inlet port of the air-cooled heat pump unit is respectively connected to the other two opposite interface ports of the four-way reversing valve of the air-cooled heat pump unit. The sensible heat recovery unit includes an evaporator of the sensible heat recovery unit, a compressor of the sensible heat recovery unit, a four-way reversing valve of the sensible heat recovery unit, a condenser of the sensible heat recovery unit, and a throttle valve of the sensible heat recovery unit. The refrigerant inlet port of the evaporator of the recovery unit is connected to the refrigerant outlet port of the condenser of the sensible heat recovery unit through the throttling valve of the sensible heat recovery unit. Any two opposite interface ports of the reversing valve are connected, and the outlet port of the evaporator of the sensible heat recovery unit and the inlet port of the condenser of the sensible heat recovery unit are respectively connected to the other two ports of the four-way reversing valve of the sensible heat recovery unit. Opposite interface end connections. The rotary solid adsorption dehumidification equipment includes a dehumidification area and a regeneration area, and the evaporator of the sensible heat recovery unit is set correspondingly to the dehumidification area.

Further, in the device of the present invention, the fan coil unit of the water-cooled chiller and the evaporator of the water-cooled chiller are connected through a chilled water circulation pipeline, and the evaporator of the water-cooled chiller and the condenser of the water-cooled chiller are circulated through a refrigerant The condenser of the water-cooled chiller unit is connected to the cooling tower through a cooling water circulation pipeline, the evaporator of the air-cooled heat pump unit and the condenser of the air-cooled heat pump unit are connected through a refrigerant circulation pipeline, and the display The evaporator of the heat recovery unit and the condenser of the sensible heat recovery unit are connected through a refrigerant circulation pipeline.

Further, in the device of the present invention, an electric heater is arranged between the condenser of the sensible heat recovery unit and the regeneration zone of the rotary solid adsorption dehumidification equipment.

Further, in the device of the present invention, the regeneration zone of the rotary solid adsorption dehumidification equipment is dehumidified and regenerated by the return air heated by the condenser of the sensible heat recovery unit. When the heat provided by the condenser of the sensible heat recovery unit is not enough to During dehumidification and regeneration in the regeneration area of the rotary solid adsorption dehumidification equipment, the electric heater is used to assist the return air to heat the return air to take away the moisture in the hygroscopic material and restore the dehumidification performance of the hygroscopic material.

Further, in the device of the present invention, in the evaporator of the water-cooled chiller, the chilled water exchanges sensible heat with the refrigerant of the water-cooled chiller, and the cooled chilled water in the evaporator of the water-cooled chiller enters the water-cooled chiller The fan coil unit performs the first-stage cooling and dehumidification of the fresh air; the refrigerant in the air-cooled heat pump unit performs the second-stage cooling and dehumidification of the fresh air in the evaporator of the air-cooled heat pump unit; the cooling in the sensible heat recovery unit In the evaporator of the sensible heat recovery unit, the fresh air is cooled and dehumidified in the third stage.

Further, in the device of the present invention, in summer, the cooling water and the refrigerant of the water-cooled chiller perform sensible heat exchange in the condenser of the water-cooled chiller to absorb the exhaust heat of the refrigerant, and the cooling water and the outdoor air are fully cooled in the cooling tower. Heat exchange, the heat of the cooling water itself is taken away by evaporating and absorbing heat, and the water-cooled chiller does not operate in winter.

Further, in the device of the present invention, the circulating chilled water pump of the power unit is arranged in the chilled water circulation pipeline, and the cooling water pump is arranged in the cooling water circulation pipeline.

Further, in the device of the present invention, in summer, the dehumidification area of the rotary solid adsorption dehumidification equipment is located in the fresh air treatment system to perform adsorption and dehumidification on the fresh air, and the regeneration area is located in the return air treatment system to regenerate and humidify the return air , In winter, the dehumidification zone of the rotary solid adsorption dehumidification equipment is located in the return air treatment system to absorb moisture for the return air, and the regeneration zone is located in the fresh air treatment system to humidify the fresh air.

Further, in the device of the present invention, the evaporator of the air-cooled heat pump unit and the evaporator of the sensible heat recovery unit are used to pre-cool the fresh air in summer and to heat the fresh air in winter. The condenser of the sensible heat recovery unit is The function of summer is to preheat the return air, and the function of winter is to precool the return air. When switching between winter and summer, the above functions are realized by adjusting the four-way reversing valve of the air-cooled heat pump unit and the four-way reversing valve of the sensible heat recovery unit. conversion.

In the preferred scheme of the device of the present invention, the two main components of the sensible heat recovery unit—the evaporator and the condenser, are used to process fresh air and return air respectively, and are used to cool and dehumidify the fresh air and heat the return air in summer. Use regenerated solid adsorption dehumidification materials; in winter, they are used to heat the fresh air and pre-cool the return air to provide the required humidity for the fresh air.

The device of the invention can be used in both winter and summer. In summer, the chilled water produced by the water-cooled chiller and the refrigerant produced by the air-cooled heat pump unit and the sensible heat recovery unit are used to cool and dehumidify the fresh air at various levels, so that the fresh air Reach a lower temperature and moisture content before solid adsorption dehumidification, and close to the saturation line, assist the dehumidification of the runner, meet the air supply state point after dehumidification by the runner, and use part of the return air to heat the solid hygroscopic material Regeneration to restore the dehumidification performance of the hygroscopic material; turn off the chiller in winter, adjust the four-way reversing valve of the air-cooled heat pump unit and the sensible heat recovery unit and the two areas of the runner, heat the fresh air step by step, and then use the runner For humidification, the required humidity is provided by the return air. The whole device uses the heat exhausted by the condenser to preheat the regeneration air in summer, which saves or avoids the energy consumption caused by the regeneration heat provided by the electric heater; Pre-cooling saves the cooling device for the return air and improves the energy efficiency of the fresh air processing device.

In actual operating conditions, since the solid adsorption dehumidification is approximately an isenthalpic process, when the fresh air passes through the dehumidification area of the rotary solid adsorption dehumidification equipment in summer, the temperature will rise while the moisture content decreases. The fresh air is cooled to a lower temperature; conversely, in winter, the fresh air needs to be heated to a higher temperature. Water-cooled chillers, air-cooled heat pump units and sensible heat recovery units account for a large proportion of the energy consumption required for cooling and dehumidifying fresh air in the whole set of devices. Compared with the total energy consumption of the cold source system, the total energy consumption of the air-cooled unit is higher than that of the water-cooled unit under the same working conditions, that is, the coefficient of performance is lower. Therefore, in order to reduce energy consumption, the fresh air is pre-cooled in multiple stages. There are water-cooled chillers, air-cooled heat pump units, and sensible heat recovery units in the device. First, water-cooled chillers with low energy consumption are used to pre-cool and dehumidify the fresh air, and then air-cooled heat pump units and sensible heat recovery units are used in sequence. The fresh air is further pre-cooled and dehumidified. During the process, the relative humidity of the air is always close to the saturation line until the enthalpy value of the fresh air after pre-cooling is the same as the enthalpy value of the indoor air supply state point. Among them, the water-cooled chiller uses chilled water as the medium to cool and dehumidify the fresh air, and the air-cooled heat pump unit and the sensible heat recovery unit directly use the phase change of the refrigerant to cool and dehumidify the fresh air. In summer, the heating and regeneration of solid moisture-absorbing materials is another part of the main energy consumption in the whole device. Considering that each unit will generate a large amount of heat exhaust during the pre-cooling of the fresh air, the return air is used as the medium. This device uses The condenser of the sensible heat recovery unit heats and regenerates the rotary solid adsorption dehumidification equipment.

The cooling capacity or heating capacity of air-cooled heat pump units and sensible heat recovery units during operation should be determined and distributed according to actual working conditions. On the one hand, air-cooled heat pump units, sensible heat recovery units, and water-cooled chillers should meet the sensible heat cooling load and part of the latent heat cooling load required by the fresh air in summer, including the temperature rise caused by dehumidification by the runner, and should meet the cooling load of fresh air in winter. To meet the heat load required by the fresh air, including the temperature drop caused by humidification through the rotor; on the other hand, the heat discharged from the condenser (5) of the sensible heat recovery unit should meet the regeneration requirements of the rotor-type solid adsorption dehumidification equipment in summer (In very special cases, the insufficient part is supplemented by an electric heater), the cooling capacity provided by the sensible heat recovery unit condenser (5) should ensure that the return air can provide sufficient humidity in winter.

Beneficial effect: compared with the prior art, the present invention has the following advantages:

During the cooling season, the air-conditioning system currently generally adopts the method of condensation and dehumidification (using frozen water at about 7°C) to achieve air cooling and dehumidification treatment, that is, the air is first cooled to the dew point temperature with the humidity content unchanged, and then Keep the relative humidity close to 100%, while removing the sensible and latent heat load of the building. The ratio of sensible heat to latent heat in this process can only be varied within a certain range. When the latent heat cooling load in the building is relatively high and exceeds the adjustable range of the air conditioning system, in order to meet the temperature and humidity requirements of the room at the same time, it is generally used to reheat the condensed air to expand the sensible heat and latent heat. ratio range. During the heating season, the air conditioning system often heats up the fresh air directly, resulting in low relative humidity and poor thermal comfort after heating.

The main difference between the device of the present invention and the above-mentioned traditional air conditioner is that during the cooling season, the cooled and dehumidified air passes through the dehumidification device of the wheel, thus avoiding the reheating of the air. In the dehumidification process of the rotor, since the state of the air changes in an approximately isenthalpic process, the temperature can be raised while dehumidifying, while the reheating process of the air can only increase the temperature of the air, and cannot adjust the humidity of the air. The dehumidification of the rotor The use of equipment promotes further dehumidification of the air while increasing its temperature. Since the rotary dehumidification equipment shares part of the humidity load of the air, when the refrigeration unit and the heat pump unit condense and dehumidify the air, the temperature and moisture content after precooling are higher than those required before reheating. The energy consumption of refrigeration unit and heat pump unit is reduced. The heating object of the traditional air-conditioning system is the air supply, while the heating device of the fresh air treatment device of the pre-cooling type rotary humidity control of the present invention is the regeneration area of the rotary dehumidification equipment. This device uses a part of the condenser to discharge heat to return the air Heat and regenerate the regeneration area of the rotary dehumidification equipment as the medium, and directly pass the return air through the condenser, which significantly improves the energy utilization efficiency, saves the high-grade energy consumption required for the heating and regeneration part, and avoids the offset of cold and heat question. At the same time, the device of the present invention can be used in both winter and summer, and in winter, the regeneration process of the runner can be used to humidify the fresh air, thereby improving the thermal comfort of the room.

Description of drawings

Fig. 1 Schematic diagram of the fresh air treatment device system in the pre-cooling wheel humidity control process.

Fig. 2 Various state points of the fresh air and return air treatment process in the pre-cooling rotor humidity control process in summer.

Fig. 3 The change process and corresponding positions of each state point in the fresh air and return air treatment process in the pre-cooling rotor humidity control process in summer.

Fig. 4 Various state points of the fresh air and return air treatment process in the winter preheating rotor humidity control process.

Figure 5. The change process and corresponding positions of each state point in the fresh air and return air treatment process in the winter preheating rotor humidity control process.

In the figure: fan coil unit of water-cooled chiller unit 1, evaporator of air-cooled heat pump unit 2, evaporator of sensible heat recovery unit 3, rotary solid adsorption dehumidification equipment 4, condenser of sensible heat recovery unit 5, electric heater 6. Chilled water circulation pump 7. Water-cooled chiller evaporator 8. Water-cooled chiller compressor 9. Water-cooled chiller condenser 10. Water-cooled chiller throttle valve 11. Water-cooled chiller cooling tower 12. Cooling water circulation Water pump 13, air-cooled heat pump unit compressor 14, air-cooled heat pump unit four-way valve 15, air-cooled heat pump unit condenser 16, air-cooled heat pump unit throttle valve 17, sensible heat recovery unit compressor 18, sensible Heat recovery unit four-way valve 19, sensible heat recovery unit throttle valve 20.

Detailed ways

The present invention will be further described below in conjunction with embodiment and accompanying drawing.

Figure 1 shows the schematic diagram of the system during the pre-cooling wheel humidity adjustment process. The device includes a water-cooled chiller unit, an air-cooled heat pump unit, a sensible heat recovery unit, a rotary solid adsorption dehumidification equipment and an electric heater. The summer fresh air passes through the water-cooled chiller fan coil unit 1, The evaporator 2 of the air-cooled heat pump unit, the evaporator 3 of the sensible heat recovery unit, and the dehumidification area of the rotary solid adsorption dehumidification equipment 4 are sent into the room, and the return air passes through the condenser 5 of the sensible heat recovery unit in the process of being processed. , the electric heater 6 and the regeneration zone of the rotary solid adsorption dehumidification equipment 4 are discharged outside.

The fan coil unit 1 of the water-cooled chiller is connected to the evaporator 8 of the water-cooled chiller through a chilled water circulation pipeline, and a chilled water circulation pump 7 is arranged in the chilled water circulation pipeline. The evaporator 8 of the water-cooled chiller and the condenser 10 of the water-cooled chiller are connected through a refrigerant circulation pipeline, and the refrigerant passes through the evaporator 8 of the water-cooled chiller, the compressor 9 of the water-cooled chiller, and the condenser 10 of the water-cooled chiller 1. The throttle valve 11 of the water-cooled chiller realizes the refrigeration cycle. The cooling tower is connected to the condenser 10 of the water-cooled chiller through cooling water circulation, and a cooling water circulation pump 13 is arranged in the cooling water circulation pipeline.

The evaporator 2 of the air-cooled heat pump unit is connected to the condenser 15 of the air-cooled heat pump unit in a refrigerant cycle, and the refrigerant sequentially passes through the evaporator 2 of the air-cooled heat pump unit, the compressor 14 of the air-cooled heat pump unit, and the compressor 14 of the air-cooled heat pump unit. The condenser 15 of the unit and the throttle valve 16 of the air-cooled heat pump type unit realize the refrigeration cycle.

The evaporator 3 of the sensible heat recovery unit and the condenser 5 of the sensible heat recovery unit are connected in a refrigerant cycle. In summer, the evaporator 3 of the sensible heat recovery unit is used to pre-cool and dehumidify the treated fresh air, and the condenser 5 of the sensible heat recovery unit is used to heat the regeneration return air. During operation, the fresh air passes through the dehumidification area of the water-cooled chiller fan coil unit 1, the air-cooled heat pump unit evaporator 2, the sensible heat recovery unit evaporator 3, and the rotary solid adsorption dehumidification equipment 4, and finally enters the room. The change of fresh air status point in Fig. 2 is: O-X-Y-Z-S-R. The return air passes through the regeneration zone of the condenser 5 of the sensible heat recovery unit, the electric heater 6, and the rotary solid adsorption dehumidification equipment 4 in sequence, and the state of the return air changes as follows: R-H-P. The electric heater 6 can not work under the normal condition that the condensing heat supply is sufficient, which avoids the consumption of high-grade electric energy.

In winter, the dehumidification zone and regeneration zone of the rotary solid adsorption dehumidification equipment 4 are reversed. The evaporator 3 of the sensible heat recovery unit is used to heat the fresh air, and the condenser 5 of the sensible heat recovery unit is used to pre-humidify the regeneration return air. cold. In winter, the water-cooled chiller and the electric heater do not operate, and the fresh air passes through the regeneration zone of the air-cooled heat pump unit evaporator 2, the sensible heat recovery unit evaporator 3, and the rotary solid adsorption dehumidification equipment 4, and finally enters the room. The change of the fresh air status point in Figure 4 is: O'-X'-Y'-S'-R'. The return air passes through the evaporator 5 of the sensible heat recovery unit and the dehumidification zone of the rotary solid adsorption dehumidification equipment 4 in sequence, and the return air state changes as follows: R'-H-P'.

The foregoing embodiments are only preferred implementations of the present invention. It should be pointed out that those skilled in the art can make several improvements and equivalent replacements without departing from the principle of the present invention. Technical solutions requiring improvement and equivalent replacement all fall within the protection scope of the present invention.

Claims (9)

1. a kind of Fresh air handing device of pre-cooling type runner humidifying, which is characterized in that the device includes the water-cooled set gradually Water cooler, air-cooled heat pump type unit, Exposure degree unit, rotary-type solid absorption dehumidification equipment, the water-cooled cooling water machine Group includes along the sequentially connected water-cooled cold water unit evaporator (8) in refrigerant circulation direction, water-cooled cold water unit compressor (9), water-cooled cold water unit condenser (10), water-cooled cold water unit throttle valve (11) and the water-cooled cold water unit steam Send out the chilled water outlet end of device (8) and the water-cooled cold water unit fan coil (1) and the water-cooled cold water of arrival end connection The cooling tower (12) that the cooling water outlet end of train condenser (10) is connected with arrival end, the water-cooled cold water unit fan unit It manages and is provided with chilled water pump between the chilled water outlet end of (1) and the chilled water inlet end of water-cooled cold water unit evaporator (8) (7), between the cooling water outlet end of the cooling tower (12) and the cooling water inlet end of water-cooled cold water unit condenser (10) It is provided with cooling water pump (13), the refrigerant outlet end of the water-cooled cold water unit throttle valve (11) passes through pipeline and water-cooled The refrigerant inlet end of water cooler evaporator (8) connects, the refrigerant inlet end of the water-cooled cold water unit compressor (9) It is connect by pipeline with the refrigerant outlet end of water-cooled cold water unit evaporator (8)；

The air-cooled heat pump type unit includes air-cooled heat pump type unit evaporator (2), air-cooled heat pump type machine set compressor (14), wind Cold and hot pump-type unit four-way reversing valve (15), air-cooled heat pump type train condenser (16) and air-cooled heat pump type unit throttle valve (17), the refrigerant outlet end of the air-cooled heat pump type train condenser (16) by air-cooled heat pump type unit throttle valve (17) with The refrigerant inlet end of air-cooled heat pump type unit evaporator (2) connects, the refrigeration of the air-cooled heat pump type machine set compressor (14) Agent arrival end and refrigerant outlet the end interface opposite with any two of air-cooled heat pump type unit four-way reversing valve (15) respectively End connection, the refrigerant outlet end of the air-cooled heat pump type unit evaporator (2) and air-cooled heat pump type train condenser (16) Refrigerant inlet end is connected with other two opposite interface end of air-cooled heat pump type unit four-way reversing valve (15) respectively；

The Exposure degree unit includes Exposure degree unit evaporator (3), Exposure degree machine set compressor (18), Exposure degree Unit four-way reversing valve (19), Exposure degree train condenser (5) and Exposure degree unit throttle valve (20), the Exposure degree The refrigerant inlet end of unit evaporator (3) passes through Exposure degree unit throttle valve (20) and Exposure degree train condenser (5) The connection of refrigerant outlet end, the arrival end of Exposure degree machine set compressor (18) and outlet end respectively with Exposure degree unit four The opposite interface end connection of any two of logical reversal valve (19), the outlet end of the Exposure degree unit evaporator (3), sensible heat Recycle train condenser (5) arrival end respectively with other two opposite interface of Exposure degree unit four-way reversing valve (19) End connection；

The rotary-type solid absorption dehumidification equipment (4) includes dehumidifying area and renewing zone, the Exposure degree unit evaporator (3) It is correspondingly arranged with dehumidifying area.

2. the Fresh air handing device of pre-cooling type runner humidifying according to claim 1, which is characterized in that the water cooling cold Water dispenser group fan coil (1) is connected with water-cooled cold water unit evaporator (8) by freezing water circulation pipe, the water cooling cold Water dispenser group evaporator (8) is connected with water-cooled cold water unit condenser (10) by refrigerant circulation line, the water cooling cold Water train condenser (10) is connected with cooling tower (12) by cooling water circulation pipe, the air-cooled heat pump type unit evaporator (2) it is connected with air-cooled heat pump type train condenser (16) by refrigerant circulation line, the Exposure degree unit evaporator (3) It is connected with Exposure degree train condenser (5) by refrigerant circulation line.

3. the Fresh air handing device of pre-cooling type runner humidifying according to claim 2, which is characterized in that the Exposure degree Electric heater (6) are provided between train condenser (5) and the renewing zone of rotary-type solid absorption dehumidification equipment (4).

4. the Fresh air handing device of pre-cooling type runner humidifying according to claim 3, which is characterized in that described rotary-type solid The renewing zone of body adsorption and dehumidification equipment (4) carries out regeneration of drying by the return air by Exposure degree train condenser (5) heating, when The shortage of heat that Exposure degree train condenser (5) provides is to dry the renewing zone of rotary-type solid absorption dehumidification equipment (4) When regeneration, auxiliary heating is carried out to return air using electric heater (6), to take away the moisture in hygroscopic material, restores hygroscopic material Wet-out property.

5. the Fresh air handing device of pre-cooling type runner humidifying according to claim 1,2,3 or 4, which is characterized in that described In water-cooled cold water unit evaporator (8), chilled water and water-cooled cold water unit refrigerant carry out Exchange of apparent heat, in water cooling cold Chilled water in water dispenser group evaporator (8) by cooling enters water-cooled cold water unit fan coil (1) and carries out first to fresh air The cooling dehumidification of grade；Refrigerant in air-cooled heat pump type unit carries out the to fresh air in air-cooled heat pump type unit evaporator (2) The cooling dehumidification of second level；Refrigerant in Exposure degree unit carries out third to fresh air in Exposure degree unit evaporator (3) The cooling dehumidification of grade.

6. the Fresh air handing device of pre-cooling type runner humidifying according to claim 1,2,3 or 4, which is characterized in that summer When cooling water and water-cooled cold water unit refrigerant Exchange of apparent heat is carried out in the water-cooled cold water unit condenser (10), absorb system The heat extraction of cryogen, cooling water and outdoor air carry out Total heat exchange in cooling tower (12), take away cooling water by evaporation endothermic The heat of itself, water-cooled cold water unit is not run when winter.

7. according to the Fresh air handing device of pre-cooling type runner humidifying described in claim 2,3 or 4, which is characterized in that described dynamic In freezing water circulation pipe, cooling water pump (13) setting is recycled in cooling water for power device circulating frozen water pump (7) setting In pipeline.

8. the Fresh air handing device of pre-cooling type runner humidifying according to claim 1,2,3 or 4, which is characterized in that summer When, the dehumidifying area of the rotary-type solid absorption dehumidification equipment (4) is located in fresh air treatment system, carries out absorption to fresh air and removes Wet, renewing zone is located in return air processing system, carries out regeneration humidification to return air, when winter, rotary-type solid absorption dehumidification equipment (4) dehumidifying area is located in return air processing system, carries out moisture absorption to return air, renewing zone is located in fresh air treatment system, to fresh air It is humidified.

9. the Fresh air handing device of pre-cooling type runner humidifying according to claim 1,2,3 or 4, which is characterized in that described The effect of air-cooled heat pump type unit evaporator (2) and Exposure degree unit evaporator (3) in summer is pre-cooling fresh air, in winter Effect is heating fresh air, and effect of the Exposure degree train condenser (5) in summer is preheating return air, and effect in winter is Return air is pre-chilled, when winter or summer exchanges, by adjusting air-cooled heat pump type unit four-way reversing valve (15) and Exposure degree unit four-way Reversal valve (19) realizes the conversion of above-mentioned effect.