CN106765823B - Energy-saving air treatment equipment - Google Patents

Energy-saving air treatment equipment Download PDF

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Publication number
CN106765823B
CN106765823B CN201710177225.8A CN201710177225A CN106765823B CN 106765823 B CN106765823 B CN 106765823B CN 201710177225 A CN201710177225 A CN 201710177225A CN 106765823 B CN106765823 B CN 106765823B
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section
pipe
coil
electric
way valve
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CN106765823A (en
Inventor
林礼建
温承坤
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Zhongjing Pengfei New Energy Technology Co ltd
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Fuzhou Pengfei Refrigeration Equipment Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/007—Ventilation with forced flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/20—Humidity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/117—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Atmospheric Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Signal Processing (AREA)
  • Air Conditioning Control Device (AREA)
  • Central Air Conditioning (AREA)

Abstract

The invention relates to an energy-saving air treatment device, which comprises a fan inlet unit, an exhaust unit and an external unit; the fresh air fan section, the evaporation section, the air inlet primary effect filtering section, the surface cooling section, the auxiliary heating section, the condensation heat recovery section, the air inlet intermediate effect filtering section and the auxiliary humidification section are sequentially arranged from the fresh air inlet end to the fresh air outlet end of the air inlet fan set; the exhaust unit comprises a water washing spraying section; the bottom of the evaporation section is provided with a reservoir, the water inlet end of the washing spray section is provided with a spray section electric three-way valve, the first inlet end of the spray section electric three-way valve is connected with a tap water source, the second inlet end of the spray section electric three-way valve is connected with the reservoir at the bottom of the evaporation section through a pipeline, and the outlet end of the spray section electric three-way valve is connected with a spray pipe; thereby providing a water source for the water washing spraying section and fully utilizing the condensed water resource.

Description

Energy-saving air treatment equipment
Technical Field
The invention relates to the field of air treatment, in particular to energy-saving air treatment equipment.
Background
Air conditioning systems are intended to provide a controlled, comfortable and healthy air environment for the room of a person or to provide specific air environment conditions for warehousing, processing, equipment operation, etc. activities. The main controls of air conditioning include air quality, air temperature, air humidity, and wind speed, among others.
The method for controlling the air quality is natural and effective, outdoor fresh air is utilized to replace or dilute the indoor air, namely outdoor fresh air is sucked, indoor waste gas is discharged, dehumidification is generally carried out on outdoor high-humidity fresh air by adopting condensation dehumidification, moisture in the air can be condensed on a condensing coil pipe to obtain condensed water, the condensed water is generally directly discharged by the conventional air treatment equipment, in actual use, for a high-humidity outdoor environment, the outdoor fresh air is dehumidified for a long time, the obtained condensed water quantity is large, and if the condensed water of the part can be reasonably utilized, certain cost can be saved.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides an energy-conserving air treatment equipment through add the cistern in evaporation zone bottom, carries the comdenstion water in the cistern to washing spray segment according to the water level selectivity of cistern, for washing spray segment provides the water source, solves among the current air treatment equipment, the extravagant problem of comdenstion water resource.
In order to solve the technical problems, the invention adopts the technical scheme that: an energy-saving air treatment device comprises an air inlet unit, an exhaust unit and an external unit;
the fresh air fan section, the air inlet primary effect filtering section, the first circulation recovery section, the evaporation section, the second circulation recovery section, the surface cooling section, the auxiliary heating section, the condensation heat recovery section, the air inlet intermediate effect filtering section and the auxiliary humidification section are sequentially arranged from the fresh air inlet end to the fresh air outlet end of the air inlet fan unit;
the exhaust unit is sequentially provided with an exhaust primary filter section, a washing spray section, a third circulation recovery section, an oxidation disinfection section, an active carbon filter section and an exhaust fan section from an exhaust inlet end to an exhaust outlet end;
the outdoor unit comprises a compressor, a refrigerant low-pressure section and a refrigerant high-pressure section, wherein the refrigerant low-pressure section is connected with the compressor and is provided with a refrigerant low-pressure interface, and the refrigerant high-pressure section is provided with a refrigerant high-pressure interface;
the evaporation zone bottom sets up the cistern, and it sets up spray zone electric three-way valve to intake the end at washing spray zone, spray zone electric three-way valve connects central controller, the water source is come to the first entrance point connection of spray zone electric three-way valve, the cistern of spray zone electric three-way valve second entrance point through pipe connection evaporation zone bottom, spray zone electric three-way valve exit end connection shower, the shower is equipped with washing spray pump, the cistern is equipped with level sensor, level sensor includes high water level sensor and low water level sensor, level sensor connects central controller, the cistern bottom with pipeline department of linking to each other is equipped with the valve by central controller control.
The invention has the beneficial effects that: the invention relates to energy-saving air treatment equipment, which is characterized in that a reservoir is additionally arranged at the bottom of an evaporation section, condensed water in the reservoir is selectively conveyed to a washing spray section according to the water level of the reservoir, so that a water source is provided for the washing spray section, the automation of water supply of the washing spray section and condensed water treatment of the evaporation section is realized, the problem of condensed water treatment of the evaporation section is solved, and the water source required by washing spray is saved.
Drawings
Fig. 1 is a schematic structural diagram of an energy-saving fresh air device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an energy-saving fresh air device according to an embodiment of the present invention;
fig. 3 is a schematic structural view of an external unit of an energy-saving fresh air device according to an embodiment of the present invention;
description of the reference symbols:
1. a fan inlet unit; 11. a fresh air fan section; 12. an air inlet primary effect filtering section;
13. a first recycle recovery section; 131. a first recycling coil; 14. an evaporation section; 141. an evaporating coil; 142. an electronic pressure reducing valve; 15. a second recycle section;
151. a second recycle recovery coil; 16. a surface cooling section; 17. an auxiliary heating section;
18. a condensation heat recovery section; 181. a condensation heat recovery coil; 182. a condensation heat recovery straight pipe; 19. a medium-efficiency filtering section; 110. an auxiliary humidification stage; 111. a primary air return inlet;
112. a secondary air return inlet; 2. An exhaust fan set; 21. An air exhaust primary effect filtering section;
22. washing the spraying section with water; 23. A third recycling section; 24. An oxidation disinfection section;
25. an activated carbon filtration section; 26. An exhaust fan section; 3. An outdoor unit; 31. A compressor; 32. a refrigerant high pressure interface; 33. A refrigerant low pressure interface.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The most key concept of the invention is as follows: the utility model provides an energy-conserving air treatment equipment, through add the cistern in evaporation zone bottom, carry the comdenstion water in the cistern to the washing shower segment according to the water level selectivity of cistern, for the washing shower segment provides the water source, make full use of condensate water resource.
Referring to fig. 1 to 3, an energy-saving air treatment device includes a fan unit 1, an exhaust unit 2, and an external unit 3;
the fresh air fan section 11, the inlet air primary effect filtering section 12, the first circulation recovery section 13, the evaporation section 14, the second circulation recovery section 15, the surface cooling section 16, the auxiliary heating section 17, the condensation heat recovery section 18, the inlet air intermediate effect filtering section 19 and the auxiliary humidification section 110 are sequentially arranged from the fresh air inlet end to the fresh air outlet end of the air inlet fan set 1;
the exhaust fan set 2 is sequentially provided with an exhaust primary filter section 21, a water washing spray section 22, a third circulation recovery section 23, an oxidation disinfection section 24, an active carbon filter section 25 and an exhaust fan section 26 from an exhaust inlet end to an exhaust outlet end;
the outdoor unit 3 comprises a compressor 31, a refrigerant low-pressure section and a refrigerant high-pressure section, wherein the refrigerant low-pressure section and the refrigerant high-pressure section are connected with the compressor 31, the refrigerant low-pressure section is provided with a refrigerant low-pressure interface 33, and the refrigerant high-pressure section is provided with a refrigerant high-pressure interface 32;
14 bottoms of evaporation zone set up the cistern, and it sets up spray zone electric three-way valve to intake the end at washing spray zone 22, spray zone electric three-way valve connection center controller, the first entrance point connection water source of spray zone electric three-way valve, the cistern of spray zone electric three-way valve second entrance point through the 14 bottoms of pipe connection evaporation zone, spray zone electric three-way valve exit end connection shower, the shower is equipped with the washing spray pump, the cistern is equipped with level sensor, level sensor includes high water level sensor and low water level sensor, level sensor connection center controller, the cistern bottom with pipeline junction is equipped with the valve by center controller control.
The use of above-mentioned energy-conserving new trend device: outdoor high-humidity fresh air is sucked by the fresh air fan section 11, is filtered by the air inlet primary effect filtering section 12, enters the first circulation recovery section 13 to exchange heat with the first circulation recovery section 13, then passes through the evaporation section 14, because the inlet end of the evaporation coil 141 is connected with the outlet end of the condensation heat recovery coil 181, when entering the evaporation coil 141, high-pressure refrigerant in the condensation heat recovery coil 181 is decompressed, evaporated and absorbed by a decompression device to reduce the temperature of the evaporation coil 141, moisture in the outdoor high-humidity fresh air is instantly condensed by contacting with the low-temperature evaporation coil 141 to achieve the effect of fresh air dehumidification, the fresh air continuously enters the second circulation recovery section 15 and the surface cooling section 16 to exchange heat, enters the auxiliary heating section 17 and the condensation heat recovery section 18 to heat the fresh air, because the dehumidified air and the evaporation coil 141 exchange heat, the air temperature is lower than the indoor required temperature, the fresh air needs to be heated to the appropriate temperature and then enters the indoor, the condensation heat recovery coil 181 in the condensation heat recovery section 18 is filled with high-pressure refrigerant compressed by the compressor 31, because the compressor 31 compresses a large amount of heat, the refrigerant in the dehumidification section is discharged, the fresh air passes through the supercooling heat recovery section to be further filtered by the indoor heat recovery section 181, and then enters the indoor auxiliary cooling section to be filtered by the indoor temperature filtration section 110, and then enters the indoor temperature filtration section to be filtered by the indoor secondary heat exchange, and filtered by the indoor secondary heat recovery section 181, and filtered fresh air to be filtered.
Indoor waste gas passes through an air exhaust primary-effect filtering section 21 of the air exhaust unit 2 to primarily filter the waste gas, passes through a water washing spraying section 22 to remove harmful substances such as amine, nitrogen and the like in the waste gas, passes through an oxidation disinfection section 24 and an active carbon filtering section 25 to be further filtered, and is exhausted outdoors through an air exhaust fan section 26; when the water level in the water storage tank is lower than the high water level liquid level sensor, the central controller controls the valve to be opened, meanwhile, the central controller controls the first inlet end of the spraying section electric three-way valve to be closed, and the second inlet end of the spraying section electric three-way valve to be opened, so that the water storage tank and the spraying pipe are communicated, water is supplied to the spraying pipe from the water storage tank, and condensed water collected by the evaporation section 14 is effectively utilized; when the water level in the reservoir is lower than the low water level liquid level sensor, the central controller controls the valve to be closed, and simultaneously, the central controller controls the second inlet end of the spraying section electric three-way valve to be closed and the first inlet end of the spraying section electric three-way valve to be opened, so that the tap water pipe supplies water to the spraying pipe.
The invention has the beneficial effects that: realizes the automation of water supply of the washing spray section 22 and condensed water treatment of the evaporation section 14, not only solves the problem of condensed water treatment of the evaporation section 14, but also saves water sources required by washing spray.
In the energy-saving air treatment equipment, the bottom of the water storage tank is funnel-shaped. The bottom of the water storage tank is designed into a funnel shape, so that the water storage tank is favorable for draining and regular cleaning.
In the energy-saving air treatment equipment, the low water level liquid level sensor is arranged on the inner side wall of the water storage tank, and the low water level liquid level sensor is 10-20cm higher than the bottom of the water storage tank. The low water level liquid level sensor is arranged at a position 10-20cm higher than the bottom of the water storage tank, so that the interruption of water supply of a spraying section caused by water storage drainage due to signal delay of the low water level liquid level sensor is prevented.
In the energy-saving air treatment equipment, the high water level liquid level sensor is arranged on the inner side wall of the water storage tank, and the high water level liquid level sensor is 10-20cm lower than the top of the water storage tank. The overflow of pool water caused by the signal delay of the high water level liquid level sensor is avoided.
In the energy-saving air treatment equipment, a condensation heat recovery coil 181 and a condensation heat recovery straight pipe 182 are installed in the condensation heat recovery section 18;
a first electric three-way valve is arranged at the lower part in the condensation heat recovery section 18, the inlet end of the first electric three-way valve is connected with the refrigerant high-pressure interface 32 through a pipeline, the first outlet end of the first electric three-way valve is connected with the inlet end of the condensation heat recovery coil 181, the second outlet end of the first electric three-way valve is connected with the inlet end of the condensation heat recovery straight pipe 182, and the outlet end of the condensation heat recovery coil 181 is connected with the inlet end of the condensation heat recovery straight pipe 182;
an evaporation coil 141 is installed in the evaporation section 14, the outlet end of the condensation heat recovery straight pipe 182 is connected with the inlet end of the evaporation coil 141 through a pipeline, a drying filter and an electronic pressure reducing valve 142 are arranged at the joint of the outlet end of the condensation heat recovery straight pipe 182 and the inlet end of the evaporation coil 141, and the outlet end of the evaporation coil 141 is connected with a refrigerant low-pressure interface 33 through a pipeline.
Introduce first electronic three-way valve in the condensation heat recovery section 18, can be according to whether outdoor new trend needs to heat corresponding regulation first electronic three-way valve, when the new trend needs to heat through this section, control high-pressure refrigerant through first electronic three-way valve and get into condensation heat recovery coil pipe 181 and carry out the heat exchange with the new trend, when the new trend need not heat through this section, control high-pressure refrigerant through first electronic three-way valve and do not pass through condensation heat recovery coil pipe 181 and directly discharge condensation heat recovery section 18 by condensation heat recovery straight-going pipe 182, make high-pressure refrigerant not carry out the heat exchange with the new trend, make above-mentioned energy-conserving air treatment equipment be applicable to the fresh air treatment under different environment.
In the energy-saving air treatment equipment, the first recycling section 13 includes a first recycling coil 131, the second recycling section 15 includes a second recycling coil 151 and a second recycling straight pipe, and the third recycling section 23 includes a third recycling coil; the interior of the first circulation recovery coil 131, the second circulation recovery coil 151, the second circulation recovery straight pipe and the third circulation recovery coil are filled with glycol liquid; and the third circulating recovery coil pipe is provided with an ethylene glycol solution pump.
The outlet end of the second recycling straight pipe is connected with the outlet end of a second recycling coil 151; a second electric three-way valve is arranged at the upper part in the second recycling section 15, the inlet end of the second electric three-way valve is connected with the outlet end of the third recycling coil pipe through a pipeline, the first outlet end of the second electric three-way valve is connected with the inlet end of the second recycling coil pipe 151, and the second outlet end of the second electric three-way valve is connected with the inlet end of the second recycling straight pipe;
the inlet end of the first recycling coil 131 is connected with the outlet end of the second recycling coil 151 through a pipeline;
the inlet end of the third recycling coil is connected with the outlet end of the first recycling coil 131 through a pipeline.
By arranging the multi-effect circulating recovery coil pipe, the temperature difference between the waste gas in the exhaust unit 2 and the temperature difference in the fresh air unit are effectively utilized, so that the heat source of the exhaust section is fully utilized, and the energy is further saved; a second electric three-way valve is arranged in the second recycling section 15, and the second electric three-way valve is used for controlling whether the ethylene glycol liquid exchanges heat with fresh air in the section, so that the temperature of the fresh air can be adjusted according to different environments, and the energy-saving air treatment equipment is suitable for fresh air treatment in different environments.
Among the above-mentioned energy-conserving air treatment equipment, energy-conserving new trend system still includes automatic control system, automatic control system is including the central controller that is used for controlling each section body work, the compressor 31 frequency controller of connection central controller, humiture preset module and set up at the first temperature sensor and the first humidity transducer of new trend entrance point, install the second temperature sensor and the second humidity transducer at the entrance point of airing exhaust, install proportion motorised valve and humidification section on-off controller on the table cold coil pipe, compressor 31 frequency controller, first temperature sensor, first humidity transducer, second temperature sensor, second humidity transducer, first motorised valve, second motorised valve, proportion motorised valve and humidification section on-off controller connect central controller respectively, predetermine the temperature and humidity in the room through humiture preset module, and central controller is according to predetermined temperature value and humidity value to and the humiture value that first temperature transducer, first humidity transducer, second temperature sensor, second humidity transducer read, the humiture value of second humidity transducer, the operating condition of each section body is adjusted automatically.
Because the temperature and the humidity of outdoor fresh air in different regions and different seasons have great difference, the central controller can compare the fresh air temperature and humidity monitored by the first temperature sensor and the first humidity sensor with preset values through presetting indoor required temperature, and intelligently adjust the frequency of the valves of all sections and the compressor 31 of the outdoor unit 3, thereby intelligently controlling the indoor temperature and humidity, controlling the temperature and humidity stability of inlet air on the basis of energy conservation, and enabling the error between the inlet air temperature and the preset value to be less than 0.5-1 ℃.
Example 1
Referring to fig. 1 to 3, an energy-saving air treatment device includes an external unit 3, an air inlet unit 1 and an air outlet unit 2;
the air inlet fan unit 1 has the following structure and functions:
the fresh air fan section 11, the air inlet primary effect filtering section 12, the first circulation recovery section 13, the evaporation section 14, the second circulation recovery section 15, the surface cooling section 16, the auxiliary heating section 17, the condensation heat recovery section 18, the air inlet intermediate effect filtering section 19 and the auxiliary humidification section 110 are sequentially arranged from the fresh air inlet end to the fresh air outlet end of the air inlet fan unit 1;
the fresh air fan section 11 is used for sucking outside fresh air into the air inlet fan group 1;
the air inlet primary filter section 12 is used for carrying out primary filtration on fresh air;
the surface cooling section 16 is connected with a central air conditioning system and is used for adjusting the temperature of fresh air;
the first circulation recovery section 13, the second circulation recovery section 15 and the third circulation recovery section 23 are communicated with each other and are used for recycling heat in the exhaust fan set 2 and the air inlet fan set 1;
the evaporation section 14 is used for cooling and dehumidifying fresh air, and the condensation heat recovery section 18 and the auxiliary heating section 17 are used for heating the fresh air; the air inlet middle-effect filtering section 19 is used for further filtering fresh air; the humidifying section is used for adjusting the humidity of fresh air.
The exhaust fan set 2 has the following structure and functions:
the exhaust fan set 2 is sequentially provided with an exhaust primary filter section 21, a water washing spray section 22, a third circulation recovery section 23, an oxidation disinfection section 24, an active carbon filter section 25 and an exhaust fan section 26 from an exhaust inlet end to an exhaust outlet end;
the primary exhaust filtering section 21 and the water washing spraying section 22 are used for removing harmful substances such as amine and nitrogen contained in the waste gas; the oxidation and disinfection section 24, the activated carbon filtering section 25 and the exhaust fan section 26 are used for purifying waste gas.
The outer unit 3 has the following structure and functions:
the outdoor unit 3 comprises a compressor 31, a refrigerant low-pressure section and a refrigerant high-pressure section, wherein the refrigerant low-pressure section and the refrigerant high-pressure section are connected with the compressor 31, the refrigerant low-pressure section is provided with a refrigerant low-pressure interface 33, and the refrigerant high-pressure section is provided with a refrigerant high-pressure interface 32;
1. the specific structural description of the energy-saving air treatment equipment comprises the following steps:
a condensation heat recovery coil pipe 181 and a condensation heat recovery straight pipe 182 are arranged in the condensation heat recovery section 18;
the inlet end of the condensation heat recovery coil 181 is arranged at the lower part of the condensation heat recovery section 18, the outlet end of the condensation heat recovery coil 181 is arranged at the lower part of the condensation heat recovery section 18, the lower part of the condensation heat recovery section 18 is provided with a first electric three-way valve, the inlet end of the first electric three-way valve is connected with the refrigerant high-pressure interface 32 through a pipeline, the first outlet end of the first electric three-way valve is connected with the inlet end of the condensation heat recovery coil 181, the second outlet end of the first electric three-way valve is connected with the inlet end of the condensation heat recovery straight pipe 182, the outlet end of the condensation heat recovery coil 181 is connected with the inlet end of the condensation heat recovery straight pipe 182, and the outlet end of the condensation heat recovery coil 181 is provided with a one-way two-way valve;
install evaporating coil 141 in the evaporation zone 14, evaporating coil 141 entrance point sets up the upper portion in evaporation zone 14, evaporating coil 141 exit end sets up the lower part in evaporation zone 14, the straight tubulation 182 exit end of condensation heat recovery passes through pipe connection evaporating coil 141 entrance point, the junction of the straight tubulation 182 exit end of condensation heat recovery and evaporating coil 141 entrance point is equipped with dry filter and electronic pressure reducing valve 142, evaporating coil 141 exit end passes through pipe connection refrigerant low pressure interface 33.
The first recycling section 13 comprises a first recycling coil 131, the second recycling section 15 comprises a second recycling coil 151 and a second recycling straight pipe, and the third recycling section 23 comprises a third recycling coil; the interior of the first circulation recovery coil 131, the second circulation recovery coil 151, the second circulation recovery straight pipe and the third circulation recovery coil are filled with glycol liquid; and the third circulating recovery coil pipe is provided with an ethylene glycol solution pump.
The inlet end of the second recycling coil 151 is arranged at the upper part in the second recycling section 15, the outlet end of the second recycling coil 151 is arranged at the lower part in the second recycling section 15, the inlet end of the second recycling straight pipe is arranged at the upper part in the second recycling section 15, and the outlet end of the second recycling straight pipe is connected with the outlet end of the second recycling coil 151; the outlet end of the second recycling coil 151 is provided with a one-way valve, the upper part in the second recycling section 15 is provided with a second electric three-way valve, the inlet end of the second electric three-way valve is connected with the outlet end of a third recycling coil through a pipeline, the first outlet end of the second electric three-way valve is connected with the inlet end of the second recycling coil 151, and the second outlet end of the second electric three-way valve is connected with the inlet end of a second recycling straight pipe;
the inlet end of the first recycling coil 131 is arranged at the lower part in the first recycling section 13, and the inlet end of the first recycling coil 131 is connected with the outlet end of the second recycling coil 151 through a pipeline; the outlet end of the first recycling coil 131 is arranged at the upper part in the first recycling section 13;
the outlet end of the third recycling coil is arranged at the lower part in the third recycling section 23, and the inlet end of the third recycling coil is connected with the outlet end of the first recycling coil 131 through a pipeline;
the surface cooling section 16 comprises a surface cooling coil arranged in the surface cooling section 16, and the surface cooling coil is connected to the central air-conditioning system and plays a role in adjusting the temperature of fresh air;
the installation height of the air inlet unit 1 is lower than that of the exhaust unit 2; the fresh air outlet end of the air inlet unit 1 is connected with the upper part of a room through a pipeline, the upper part of the room is connected with the fresh air outlet and provided with a high-efficiency filter, and the air exhaust inlet end of the exhaust unit 2 is connected with the lower part of the room through a pipeline.
The high-pressure section of the refrigerant is a refrigerant high-pressure coil coiled inside the side wall of the outer machine 3, the refrigerant high-pressure coil is cooled by a cooling fan arranged inside the outer machine 3, the outer machine 3 further comprises a cooling spray pipe arranged on the upper part of the refrigerant high-pressure coil, the water inlet end of the cooling spray pipe is provided with an outer machine 3 electric three-way valve, the outer machine 3 electric three-way valve is connected with a central controller, the first inlet end of the outer machine 3 electric three-way valve is connected with a tap water source, the second inlet end of the outer machine 3 electric three-way valve is connected with a reservoir at the bottom of the evaporation section 14 through a pipeline, the outlet end of the outer machine 3 electric three-way valve is connected with the cooling spray pipe, the cooling spray pipe is provided with a cooling spray pump, the reservoir is provided with a liquid level sensor, the liquid level sensor comprises a high-water-level liquid level sensor and a low-level liquid level sensor, the liquid level sensor is connected with the central controller, and a valve controlled by the central controller is arranged at the bottom of the reservoir and the pipeline;
when the water level in the water storage tank is lower than the high water level liquid level sensor, the central controller controls the valve to be opened, meanwhile, the central controller controls the first inlet end of the electric three-way valve of the outer machine 3 to be closed, the second inlet end of the electric three-way valve of the outer machine 3 is opened, so that the water storage tank and the cooling spray pipe are communicated, water is supplied to the cooling spray pipe from the water storage tank, and condensed water collected by the evaporation section 14 is effectively utilized; when the water level in the reservoir is lower than the low water level liquid level sensor, the central controller controls the valve to be closed, meanwhile, the central controller controls the second inlet end of the electric three-way valve of the outer unit 3 to be closed, and the first inlet end of the electric three-way valve of the outer unit 3 is opened, so that water is supplied to the cooling spray pipe through the tap water pipe, the automation of water supply of the cooling spray pipe of the outer unit 3 and condensate water treatment of the evaporation section 14 is realized, the problem of condensate water treatment of the evaporation section 14 is solved, and a water source required by water cooling of the outer unit 3 is saved.
The invention also comprises an automatic control system, wherein the automatic control system comprises a central controller for controlling the work of each section body, a compressor 31 frequency controller connected with the central controller, a temperature and humidity preset module, a first temperature sensor and a first humidity sensor arranged at a fresh air inlet end, a second temperature sensor and a second humidity sensor arranged at an exhaust air inlet end, and a proportion electric valve and a humidification section switch controller arranged on the surface cooling coil pipe, wherein the compressor 31 frequency controller, the first temperature sensor, the first humidity sensor, the second temperature sensor, the second humidity sensor, the first electric three-way valve, the second electric three-way valve, the spraying section electric three-way valve, the outer machine 3 electric three-way valve, the proportion electric valve and the humidification section switch controller are respectively connected with the central controller, the temperature and the humidity in a room are preset through the temperature and humidity preset module, and the working state of each section body is automatically adjusted by the central controller according to preset temperature values and humidity values and read by the first temperature sensor, the first humidity sensor, the second temperature sensor and the second humidity sensor.
2. The energy-saving air treatment equipment is used in different fresh air environments:
because the temperature and the humidity of outdoor fresh air in different areas and different seasons have great difference, the central controller can compare the temperature and the humidity of the fresh air monitored by the first temperature sensor and the first humidity sensor with preset values through presetting the indoor required temperature, and intelligently adjust the valve of each segment and the frequency of the compressor 31 of the outdoor unit 3;
1) Taking low-temperature and low-humidity outdoor fresh air in winter as an example:
if the temperature and humidity of the outdoor fresh air are lower than preset values, the central controller controls the compressor 31 of the outer unit 3 to be turned off, so that the evaporation section 14 does not work; because the surface cooling coil in the surface cooling section 16 is connected with the central air conditioning system, the central air conditioning system heats the fresh air by combining the heating of the surface cooling section 16 with other heating modes such as electric heating in the auxiliary heating section 17, the central controller correspondingly controls the first electric three-way valve, the second electric three-way valve and the proportional electric valve to control the heat exchange efficiency to reach the preset temperature, and controls the humidifying section to humidify the fresh air by the central controller to reach the proper humidity;
2) Taking outdoor fresh air with high temperature and high humidity in summer as an example:
the temperature and humidity of outdoor fresh air are lower than a preset value, so that the central controller adjusts the frequency of the compressor 31 of the outdoor unit 3 according to the difference between the temperature and the preset value monitored by the temperature sensor and the humidity sensor arranged in the fresh air section, the fresh air is dehumidified through the evaporation section 14, the temperature of the fresh air is greatly reduced, the central controller correspondingly controls the first electric three-way valve, the second electric three-way valve and the proportional electric valve to control the heat exchange efficiency, the appropriate temperature is reached, the central controller controls the humidification section to be closed at the moment, and the fresh air does not need to be humidified.
3) Taking the case of outdoor fresh air temperature of 36 ℃ as an example:
assuming that the temperature monitored by the first temperature sensor is 36 ℃ and the temperature detected by the second temperature sensor is 23-25 ℃, at this time, the central controller controls the first outlet end of the first electric three-way valve to be opened and controls the second outlet end of the first electric three-way valve to be closed, so that the condensation heat recovery coil 181 is connected with the refrigerant high-pressure interface 32, the central controller controls the first outlet end of the second electric three-way valve to be opened and controls the second outlet end of the second electric three-way valve to be closed, so that the ethylene glycol in the second circulation recovery coil 151 enters a circulation flow state; at the moment, the fresh air enters the first circulating recovery section 13 after being filtered by the primary filter of the air inlet primary filtering section 12, the temperature of the fresh air is reduced to 26 ℃ through heat exchange with the first circulating recovery coil pipe 131, the temperature of the inlet end of the first circulating recovery coil pipe 131 is 17-23 ℃, and the temperature of the outlet end of the first circulating recovery coil pipe 131 is 24-28 ℃ after heat exchange;
the fresh air passing through the first recycling section 13 flows through the evaporation section 14, the high-pressure refrigerant passing through the condensation heat recycling section 18 in the section is decompressed through the electronic decompression valve 142 before entering the evaporation coil 141, evaporation and heat absorption are carried out, so that when the fresh air passes through the section, moisture in the fresh air is condensed on the outer wall of the evaporation coil 141, the purpose of fresh air dehumidification is achieved, the condensed water flows to a reservoir at the bottom of the evaporation section 14 along the coil, and the temperature of the fresh air after being dehumidified by the evaporation section 14 is reduced to 12 ℃;
the fresh air dehumidified by the evaporation section 14 continuously flows through the second circulation recovery section 15, the temperature of the inlet end of the second circulation recovery coil 151 is 21-23 ℃, the temperature of the outlet end of the second circulation recovery coil 151 is reduced to 17-21 ℃ after heat exchange, and the temperature of the fresh air is raised to 17 ℃ after passing through the section;
the fresh air passing through the second circulation recovery section 15 continuously flows to the surface cooling section 16, the surface cooling section 16 controls the proportional electric valve through the central controller to control the temperature of the surface cooling section 16, and therefore heat exchange is carried out between the fresh air and the corresponding fresh air to achieve the proper fresh air temperature;
the fresh air after passing through the surface cooling section 16 continuously flows through the auxiliary heating section 17 and the condensation heat recovery section 18, the high-pressure refrigerant compressed by the compressor 31 is connected into the condensation heat recovery coil 181, the refrigerant is compressed to release heat and has a high temperature, the fresh air enters the condensation heat recovery coil 181 to exchange heat with the fresh air at the section, the dehumidified supercooled fresh air is heated to reach the proper temperature of a room, the auxiliary heating section 17 performs auxiliary heating on the fresh air by adopting an electric heating or other heating mode to meet the temperature requirement of part of the room, and the temperature of the fresh air is further controlled;
the heated fresh air continuously flows through the air inlet middle-effect filtering section 19 and other sections and then enters the room;
waste gas exhausted from a room enters an exhaust fan unit 2 and sequentially passes through a primary filtering section and a washing spraying section 22, and the temperature of the waste gas after passing through the washing spraying section 22 is assumed to be 18-21 ℃;
the waste gas after passing through the water washing spray section 22 continuously flows through a third circulating recovery section 23, the temperature of the waste gas after heat exchange with a third circulating recovery coil pipe is increased to 25-29 ℃, the temperature of the inlet end of the third circulating recovery coil pipe in the section is 24-28 ℃, and the temperature of the outlet end of the third circulating recovery coil pipe is 21-23 ℃;
the waste gas after passing through the third recycling coil pipe is discharged to the outside after continuously passing through other sections such as the oxidation and disinfection section 24, the active carbon filtering section 25 and the like.
Example 2
On the basis of embodiment 1, a reservoir is arranged at the bottom of an evaporation section 14, a spray section electric three-way valve is arranged at the water inlet end of a washing spray section 22, the spray section electric three-way valve is connected with a central controller, the first inlet end of the spray section electric three-way valve is connected with a tap water source, the second inlet end of the spray section electric three-way valve is connected with the reservoir at the bottom of the evaporation section 14 through a pipeline, the outlet end of the spray section electric three-way valve is connected with a spray pipe, the spray pipe is provided with a washing spray pump, the reservoir is provided with a liquid level sensor, the liquid level sensor comprises a high-water level liquid level sensor and a low-water level liquid level sensor, the liquid level sensor is connected with the central controller, and a valve controlled by the central controller is arranged at the connection part of the bottom of the reservoir and the pipeline;
when the water level in the reservoir is higher than the high water level liquid level sensor, the central controller controls the valve to be opened, and simultaneously, the central controller controls the first inlet end of the spraying section electric three-way valve to be closed and the second inlet end of the spraying section electric three-way valve to be opened, so that the reservoir is communicated with the spraying pipe, water is supplied to the spraying pipe from the reservoir, and condensed water collected by the evaporation section 14 is effectively utilized; when the water level in the reservoir is lower than the low water level liquid level sensor, the central controller controls the valve to be closed, and simultaneously, the central controller controls the second inlet end of the spray section electric three-way valve to be closed and opens the first inlet end of the spray section electric three-way valve, so that water is supplied to the spray pipe through the tap water pipe, the automation of water supply of the washing spray section 22 and condensate water treatment of the evaporation section 14 is realized, the problem of condensate water treatment of the evaporation section 14 is solved, and a water source required by washing spray is saved.
Example 3
According to the energy-saving air treatment equipment in the embodiment 1, the primary air return opening 111 is additionally arranged behind the evaporation section 14, and the secondary air return opening 112 is additionally arranged behind the condensation heat recovery section 18; correspondingly, a secondary air return system is additionally arranged at the rear section of the exhaust fan section 26, the secondary air return system comprises an air return pipe connected behind the exhaust fan section 26, the air return pipe comprises an air return main pipe, a primary exhaust pipe and a secondary air return pipe, the primary exhaust pipe is branched from the air return main pipe, the primary air return pipe is connected with a primary air return port 111, and the secondary air return pipe is connected with a secondary air return port 112; the shunting positions of the primary air return pipe, the secondary air return pipe and the return air main pipe are provided with shunting valves, the air flow shunted by the primary air return pipe is 30% of the air flow of the return air main pipe, and the air flow shunted by the secondary air return pipe is 70% of the air flow of the return air main pipe;
the bottom in the washing spray segment 22 is equipped with circulation tank, circulation tank arranges along waste gas entering direction and is connected with a plurality of shower, the shower extends to the upper portion in the washing spray segment 22, the shower is connected with spray pump, be equipped with a plurality of atomizer on the shower.
A medicine storage box is further arranged in the washing spraying section 22, acidic solution is filled in the medicine storage box, the medicine storage box is connected with a circulating water tank through a feeding pipe, a water stop valve is arranged on the feeding pipe, and an acidity controller used for controlling the water stop valve to be opened or closed is arranged in the circulating water tank.
Because indoor humiture reaches predetermined suitable degree, the humiture through exhaust unit 2 exhaust waste gas is closer with indoor suitable humiture, through the secondary return air, effectively utilize indoor humiture, reduce the admission capacity of outdoor new trend, or realize the circulation of indoor air, reduce the energy waste that leads to because the humiture of outdoor new trend is too big with the difference of predetermined humiture, improve exhaust unit 2 correspondingly, amine in the waste gas, harmful substance such as nitrogen are fully got rid of through the improvement of washing shower section 22, in order to reach the requirement that the return air utilized.
In summary, the invention relates to an energy-saving air treatment device, which is characterized in that a reservoir is additionally arranged at the bottom of an evaporation section, condensed water in the reservoir is selectively conveyed to a washing spray section according to the water level of the reservoir, so as to provide a water source for the washing spray section, realize the automation of water supply of the washing spray section and condensed water treatment of the evaporation section, solve the problem of condensed water treatment of the evaporation section and save the water source required by washing spray. Because the temperature and the humidity of outdoor fresh air in different regions and different seasons have great difference, the central controller can compare the fresh air temperature and humidity monitored by the first temperature sensor and the first humidity sensor with preset values through presetting indoor required temperature, and intelligently adjust the frequency of valves of each segment and an outer compressor, thereby intelligently controlling the indoor temperature and humidity, and controlling the temperature and humidity stability of inlet air on the basis of energy conservation, so that the error between the inlet air temperature and the preset values is less than 0.5-1 ℃.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.

Claims (7)

1. An energy-saving air treatment device is characterized by comprising a fan inlet unit, an exhaust unit and an external unit;
the fresh air fan section, the air inlet primary effect filtering section, the first circulation recovery section, the evaporation section, the second circulation recovery section, the surface cooling section, the auxiliary heating section, the condensation heat recovery section, the air inlet middle effect filtering section and the auxiliary humidification section are sequentially arranged in the air inlet fan set from a fresh air inlet end to a fresh air outlet end;
the exhaust unit is sequentially provided with an exhaust primary filter section, a washing spray section, a third circulation recovery section, an oxidation disinfection section, an active carbon filter section and an exhaust fan section from an exhaust inlet end to an exhaust outlet end;
the outdoor unit comprises a compressor, a refrigerant low-pressure section and a refrigerant high-pressure section, wherein the refrigerant low-pressure section is connected with the compressor and is provided with a refrigerant low-pressure interface, and the refrigerant high-pressure section is provided with a refrigerant high-pressure interface;
the water washing device is characterized in that a reservoir is arranged at the bottom of the evaporation section, a spray section electric three-way valve is arranged at the water inlet end of the water washing spray section, a first inlet end of the spray section electric three-way valve is connected with a tap water source, a second inlet end of the spray section electric three-way valve is connected with the reservoir at the bottom of the evaporation section through a pipeline, the outlet end of the spray section electric three-way valve is connected with a spray pipe, the spray pipe is provided with a water washing spray pump, the reservoir is provided with a liquid level sensor, the liquid level sensor comprises a high-water-level liquid level sensor and a low-water-level liquid level sensor, the liquid level sensor is connected with a central controller, and a valve controlled by the central controller is arranged at the connection part of the bottom of the reservoir and the pipeline;
a primary air return port is additionally arranged behind the evaporation section, and a secondary air return port is additionally arranged behind the condensation heat recovery section; a secondary air return system is additionally arranged at the rear section of the air exhaust fan section and comprises an air return pipe connected to the rear of the air exhaust fan section, the air return pipe comprises an air return main pipe, a primary air return pipe and a secondary air return pipe, the primary air return pipe is branched from the air return main pipe, the primary air return pipe is connected with a primary air return port, and the secondary air return pipe is connected with a secondary air return port; the shunting positions of the primary air return pipe, the secondary air return pipe and the air return main pipe are provided with shunting valves, the air flow shunted by the primary air return pipe is 30% of the air flow of the air return main pipe, and the air flow shunted by the secondary air return pipe is 70% of the air flow of the air return main pipe;
when the temperature of the fresh air inlet end is 36 degrees, the temperature of the inlet end of the first circulating recovery coil pipe is 17-23 ℃, and the temperature of the outlet end of the first circulating recovery coil pipe 131 is 24-28 ℃; the temperature of the inlet end of the second circulating recovery coil pipe is 21-23 ℃, and the temperature of the outlet end of the second circulating recovery coil pipe is 17-21 ℃; the temperature of the inlet end of the third circulating recovery coil pipe is 24-28 ℃, and the temperature of the outlet end of the third circulating recovery coil pipe is 21-23 ℃.
2. The energy efficient air treatment apparatus of claim 1, wherein the reservoir bottom is funnel shaped.
3. The energy efficient air treatment apparatus of claim 1 wherein the low water level sensor is positioned on an interior sidewall of the reservoir, the low water level sensor being 10-20cm above a floor of the reservoir.
4. The energy efficient air treatment device of claim 1, wherein the high water level sensor is disposed on an inner sidewall of the reservoir, and wherein the high water level sensor is 10-20cm below a roof of the reservoir.
5. The energy-saving air treatment equipment according to claim 1, wherein a condensation heat recovery coil and a condensation heat recovery straight pipe are installed in the condensation heat recovery section;
a first electric three-way valve is arranged at the lower part in the condensation heat recovery section, the inlet end of the first electric three-way valve is connected with a refrigerant high-pressure interface through a pipeline, the first outlet end of the first electric three-way valve is connected with the inlet end of a condensation heat recovery coil pipe, the second outlet end of the first electric three-way valve is connected with the inlet end of a condensation heat recovery straight pipe, and the outlet end of the condensation heat recovery coil pipe is connected with the inlet end of the condensation heat recovery straight pipe;
install evaporating coil in the evaporation zone, the straight travelling pipe exit end of condensation heat recovery passes through the pipe connection evaporating coil entrance point, the junction of the straight travelling pipe exit end of condensation heat recovery and evaporating coil entrance point is equipped with drier-filter and electronic pressure reducing valve, the evaporating coil exit end passes through pipe connection refrigerant low pressure interface.
6. The energy efficient air treatment apparatus of claim 1, wherein the first recycling section comprises a first recycling coil, the second recycling section comprises a second recycling coil and a second recycling straight run, and the third recycling section comprises a third recycling coil; ethylene glycol liquid is filled in the first circulating recovery coil pipe, the second circulating recovery straight pipe and the third circulating recovery coil pipe; a glycol solution pump is arranged on the third circulating recovery coil pipe;
the outlet end of the second recycling straight pipe is connected with the outlet end of the second recycling coil pipe; a second electric three-way valve is arranged at the upper part in the second recycling section, the inlet end of the second electric three-way valve is connected with the outlet end of a third recycling coil pipe through a pipeline, the first outlet end of the second electric three-way valve is connected with the inlet end of a second recycling coil pipe, and the second outlet end of the second electric three-way valve is connected with the inlet end of a second recycling straight pipe;
the inlet end of the first circulating recovery coil is connected with the outlet end of the second circulating recovery coil through a pipeline;
the inlet end of the third recycling coil is connected with the outlet end of the first recycling coil through a pipeline.
7. The energy efficient air treatment apparatus of claim 5 or 6 further comprising an automatic control system;
the automatic control system comprises a central controller for controlling the work of each section of body, a compressor frequency controller connected with the central controller, a temperature and humidity preset module, a first temperature sensor and a first humidity sensor which are arranged at a fresh air inlet end, a second temperature sensor and a second humidity sensor which are arranged at an exhaust air inlet end, a proportional electric valve and a humidifying section switch controller which are arranged on the surface cooling coil;
the compressor frequency controller, the first temperature sensor, the first humidity sensor, the second temperature sensor, the second humidity sensor, the first electric three-way valve, the second electric three-way valve, the proportional electric valve and the humidifying section switch controller are respectively connected with the central controller;
the temperature and humidity in a room are preset through a temperature and humidity presetting module, and the central controller automatically adjusts the working state of each section according to a preset temperature value and a preset humidity value and the temperature and humidity values read by the first temperature sensor, the first humidity sensor, the second temperature sensor and the second humidity sensor.
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