CN107062442B - Energy-saving air treatment system - Google Patents

Energy-saving air treatment system Download PDF

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Publication number
CN107062442B
CN107062442B CN201710176806.XA CN201710176806A CN107062442B CN 107062442 B CN107062442 B CN 107062442B CN 201710176806 A CN201710176806 A CN 201710176806A CN 107062442 B CN107062442 B CN 107062442B
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section
pipe
air
recycling
air return
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CN201710176806.XA
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Chinese (zh)
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CN107062442A (en
Inventor
林礼建
温承坤
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Fuzhou Pengfei Refrigeration Equipment Co ltd
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Fuzhou Pengfei Refrigeration Equipment Co ltd
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • 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
    • F24F13/28—Arrangement or mounting of filters
    • 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
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • 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
    • F24F8/108—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 dry filter elements
    • 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
    • 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
    • F24F8/15—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 by chemical means
    • F24F8/158—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 by chemical means using active carbon
    • 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
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature
    • 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]
    • Y02B30/56—Heat recovery units

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

Abstract

The invention relates to an energy-saving air treatment system, which comprises an air inlet unit, an exhaust unit and an external machine; the air inlet unit is sequentially provided with a fresh air fan section, an evaporation section, an air inlet primary filter section, a surface cooling section, an auxiliary heating section, a condensation heat recovery section, an air inlet middle-effect filter section and an auxiliary humidifying section from a fresh air inlet end to a fresh air outlet end; a primary air return port is additionally arranged behind the evaporation section of the exhaust unit, and a secondary air return port is additionally arranged behind the condensation heat recovery section; correspondingly, a secondary air return system is additionally arranged at the rear section of the exhaust fan section, the secondary air return system comprises an air return pipe connected behind the 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 by 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 split positions of the primary return air pipe, the secondary return air pipe and the return air main pipe are provided with split valves; thereby fully utilizing the energy in the exhaust gas.

Description

Energy-saving air treatment system
Technical Field
The invention relates to the field of air treatment, in particular to an energy-saving air treatment system.
Background
Air conditioning systems are intended to provide a controlled, comfortable and healthy air environment for a person's indoor activity space or to provide specific air environment conditions for activities such as warehousing, processing, equipment operation, etc. The main controls of air conditioning include air quality, air temperature, air humidity, wind speed, etc.
The control of air quality is more self-effective, namely, the outdoor fresh air is utilized to replace or dilute the indoor air, namely, the outdoor fresh air is sucked, the indoor waste gas is discharged, and for the existing air treatment system applied to an electronic factory building or an animal breeding room, the outdoor gas is discharged out of the room basically without cold (heat) recovery treatment, and the indoor gas contains a large amount of harmful substances such as amine, nitrogen and the like and cannot be directly recycled; in the method for completely introducing fresh air and discharging indoor waste gas, when the outdoor fresh air and indoor required air have great temperature-humidity difference, a great amount of energy is consumed for completely treating the outdoor fresh air to the required temperature and humidity, and the discharged gas is relatively close to the indoor required temperature due to the fact that the energy consumption for treating the fresh air is correspondingly reduced if the part of gas is circulated in the indoor through return air; therefore, how to treat and reasonably use the gas exhausted from the room becomes a problem to be solved.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the utility model provides an energy-conserving air treatment system improves exhaust unit, adds multistage exhaust treatment section body to purify harmful substance such as amine, nitrogen in the waste gas to rationally shunt this part waste gas, insert the different section bodies of air inlet unit respectively, in order to solve current air treatment system and can not effectively utilize indoor exhaust waste gas, handle a large amount of new trend and bring the high energy consumption problem.
In order to solve the technical problems, the invention adopts the following technical scheme: an energy-saving air treatment system comprises an air inlet unit, an exhaust unit and an external machine;
the air inlet unit is sequentially provided with a fresh air fan section, an air inlet primary filtering section, a first circulating recovery section, an evaporation section, a second circulating recovery section, a surface cooling section, an auxiliary heating section, a condensation heat recovery section, an air inlet middle-effect filtering section and an auxiliary humidifying section from a fresh air inlet end to a fresh air outlet end;
the exhaust unit is sequentially provided with an exhaust primary filtering section, a washing spraying section, a third recycling section, an oxidation disinfection section, an active carbon filtering section and an exhaust fan section from an exhaust inlet end to an exhaust outlet end;
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; correspondingly, a secondary air return system is additionally arranged at the rear section of the exhaust fan section, the secondary air return system comprises an air return pipe connected behind the 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 by 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; and a flow dividing valve is arranged at the flow dividing position of the primary return air pipe, the secondary return air pipe and the return air main pipe.
The invention has the beneficial effects that: the invention relates to an energy-saving air treatment system, which is characterized in that the temperature and the humidity of exhaust gas discharged by an exhaust unit are close to those of an indoor environment, the indoor temperature and the humidity are effectively utilized by secondary return air, the entering quantity of outdoor fresh air is reduced, or the circulation of indoor air is realized, the energy waste caused by the overlarge difference between the temperature and the humidity of the outdoor fresh air and the preset temperature and humidity is reduced, the exhaust unit is correspondingly improved, and the harmful substances such as amine, nitrogen and the like in the exhaust gas are fully removed by the improvement of a water washing spray section, so that the requirement of return air utilization is met.
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 diagram of a specific structure of an energy-saving fresh air device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a secondary air return system of an energy-saving fresh air device according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an external unit structure of an energy-saving fresh air device according to an embodiment of the present invention;
description of the reference numerals:
1. an air inlet unit; 11. A fresh air fan section; 12. An air inlet primary filtering section;
13. a first recycling section; 131. A first recycle recovery coil; 14. An evaporation section; 141. an evaporation coil; 142. An electronic pressure reducing valve; 15. A second recycling section;
151. a second recycle recovery coil; 16. A surface cooling section; 17. An auxiliary heating section;
18. a condensing heat recovery section; 181. A condensing heat recovery coil; 182. A condensation heat recovery straight pipe; 19. A medium-efficiency filtering section; 110. An auxiliary humidification section; 111. A primary air return port;
112. a secondary air return port; 2. An exhaust unit; 21. An exhaust primary filtering section;
22. a water washing spray section; 23. A third recycling section; 24. An oxidation disinfection section;
25. an activated carbon filtration section; 26. An exhaust fan section; 27. A secondary return air system;
271. a return air main pipe; 272. A primary return air pipe; 273. A secondary return air pipe;
3. an external machine; 31. A compressor; 32. A refrigerant high pressure port; 33. A refrigerant low pressure port.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
The most critical concept of the invention is as follows: the energy-saving air treatment system is characterized in that an exhaust unit is improved, a plurality of sections of waste gas treatment section bodies are additionally arranged, harmful substances such as amine, nitrogen and the like in waste gas are purified, the part of waste gas is split, 30% of the waste gas is connected into the rear section of an evaporation section of an air inlet unit, 70% of the waste gas is connected into the rear section of a condensation heat recovery section of the air inlet unit, and the energy consumption of the system is reduced while the air inlet quality is not influenced.
Referring to fig. 1 to 4, an energy-saving air treatment system includes an air intake unit 1, an exhaust unit 2 and an external machine 3;
the air intake unit 1 is provided with a fresh air fan section 11, an air intake primary filter section 12, a first circulation recovery section 13, an evaporation section 14, a second circulation recovery section 15, a surface cooling section 16, an auxiliary heating section 17, a condensation heat recovery section 18, an air intake secondary filter section 19 and an auxiliary humidifying section 110 which are sequentially arranged from a fresh air inlet end to a fresh air outlet end;
the exhaust unit 2 is provided with an exhaust primary filter section 21, a washing spray section 22, a third recycling section 23, an oxidation disinfection section 24, an active carbon filter section 25 and an exhaust fan section 26 which are sequentially arranged from an exhaust inlet end to an exhaust outlet end;
a primary air return port 111 is additionally arranged behind the evaporation section 14, and a secondary air return port 112 is additionally arranged behind the condensation heat recovery section 18; correspondingly, a secondary air return system 27 is additionally arranged at the rear section of the exhaust fan section 26, the secondary air return system 27 comprises an air return pipe connected to the rear section of the exhaust fan section 26, the air return pipe comprises an air return main pipe 271, a primary air return pipe 272 and a secondary air return pipe 273, the primary air return pipe 272 is connected with a primary air return port 111, and the secondary air return pipe 273 is connected with a secondary air return port 112; the split-flow positions of the primary return air pipe 272, the secondary return air pipe 273 and the return air main pipe 271 are provided with split-flow valves.
Use of the energy-saving air treatment system described above: the outdoor high-humidity fresh air is pumped in through the fresh air fan section 11, filtered by the air inlet primary 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, as the inlet end of the evaporation coil 141 is connected with the outlet end of the condensation heat recovery coil 181, the high-pressure refrigerant in the condensation heat recovery coil 181 is decompressed, evaporated and absorbed by a decompression device when entering the evaporation coil 141, so that the temperature of the evaporation coil 141 is reduced, the moisture in the outdoor high-humidity fresh air is instantly condensed by contacting the low-temperature evaporation coil 141, thereby achieving the dehumidification effect, and after the fresh air continuously enters the second circulation recovery section 15 and the surface cooling section 16 to exchange heat, the fresh air enters an auxiliary heating section 17 and a condensation heat recovery section 18 to be heated, the temperature of the air is lower than the indoor required temperature due to heat exchange between dehumidified air and an evaporation coil 141, the air needs to be heated to a proper temperature and then enters the room, the condensation heat recovery coil 181 in the condensation heat recovery section 18 is filled with high-pressure refrigerant compressed by a compressor 31, and the refrigerant in the section has high temperature due to the fact that the compressor 31 compresses the refrigerant to release a large amount of heat, the fresh air after dehumidification and supercooling exchanges heat with the condensation heat recovery coil 181 when passing through the section, the temperature is raised to the room temperature, and the fresh air is further filtered by a medium-efficiency filtering section 19 and enters the room after being processed by an auxiliary humidifying section 110;
indoor waste gas passes through the exhaust primary filter section 21 of the exhaust unit 2, is subjected to primary filtration, passes through the water washing spray section 22, removes harmful substances such as amine and nitrogen in the waste gas, passes through the oxidation disinfection section 24 and the active carbon filter section 25, enters the secondary return air system 27 through the exhaust fan section 26 after being further filtered, and shunts return air through the diverter valve, and enters corresponding sections in the air inlet unit 1 through the primary return air pipe 272 and the secondary return air pipe 273 for recycling.
The energy-saving air treatment system has the beneficial effects that: the invention relates to an energy-saving air treatment system, which is characterized in that the temperature and the humidity of exhaust gas discharged by an exhaust unit 2 are close to those of an indoor environment, the indoor temperature and the humidity are effectively utilized by secondary return air, the entering quantity of outdoor fresh air is reduced, or the circulation of indoor air is realized, the energy waste caused by overlarge difference between the temperature and the humidity of the outdoor fresh air and the preset temperature and humidity is reduced, the exhaust unit 2 is correspondingly improved, and the harmful substances such as amine, nitrogen and the like in the exhaust gas are fully removed by the improvement of a water washing spray section 22, so that the requirement of return air utilization is met.
In the above energy-saving air treatment system, the air flow split by the primary air return pipe 272 is 30% of the air flow split by the air return main pipe 271, and the air flow split by the secondary air return pipe 273 is 70% of the air flow split by the air return main pipe 271. The energy-saving effect of the air treatment system is further improved by controlling the air flow of different sections of the air inlet unit 1.
In the energy-saving air treatment system, a circulating water tank is arranged at the bottom in the water washing spray section 22 and is connected with a spray pipe, the spray pipe extends to the upper part in the water washing spray section 22 and is connected with a spray water pump, and a plurality of atomizing spray heads are arranged on the spray pipe. The water in the circulating water tank is pumped to the spray pipe through the spray water pump, and then is sprayed to the water washing spray section 22 through a plurality of atomizing nozzles uniformly distributed on the spray pipe, so that the water mist uniformly covers the whole water washing spray section 22, and harmful substances such as amine, nitrogen and the like in the waste gas are further removed. The sprayed water flows into the circulating water tank, so that the water is recycled and is replaced periodically, and the water-saving effect is achieved.
In the above energy-saving air treatment system, the water washing spray section 22 is also internally provided with a medicine storage tank, the medicine storage tank is filled with an acidic solution, the medicine storage tank is connected with a circulating water tank through a feed pipe, the feed pipe is provided with a water stop valve, and the circulating water tank is internally provided with an acidity controller for controlling the water stop valve to be opened or closed. The acid solution is quantitatively added into the circulating water tank, so that the removal efficiency of amine and nitrogen substances in the waste gas is further improved.
In the energy-saving air treatment system, the circulating water tank is connected with a plurality of spray pipes, and the spray pipes are arranged along the entering direction of the waste gas. The waste gas sequentially passes through the water mist sprayed by the spray pipes to be treated for multiple times, so that the removal efficiency of amine and nitrogen substances in the waste gas is further improved.
In the energy-saving air treatment system, a condensation heat recovery coil 181 and a condensation heat recovery straight pipe 182 are installed in the condensation heat recovery section 18;
the outer machine 3 comprises a compressor 31, a refrigerant low-pressure section and a refrigerant high-pressure section, wherein the refrigerant low-pressure section is 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;
the lower part in 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 port 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 the refrigerant low-pressure interface 33 through a pipeline.
The first electric three-way valve is introduced into the condensation heat recovery section 18, and can be adjusted according to whether the outdoor fresh air needs to be heated or not, when the fresh air needs to be heated in the section, the first electric three-way valve controls the high-pressure refrigerant to enter the condensation heat recovery coil 181 to exchange heat with the fresh air, and when the fresh air does not need to be heated in the section, the first electric three-way valve controls the high-pressure refrigerant to directly discharge the condensation heat recovery section 18 from the condensation heat recovery straight pipe 182 without passing through the condensation heat recovery coil 181, so that the high-pressure refrigerant does not exchange heat with the fresh air, and the energy-saving air treatment system is suitable for fresh air treatment under different environments.
In the above energy-saving air treatment system, 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 first recycling coil 131, the second recycling coil 151, the second recycling straight pipe and the third recycling coil are filled with glycol liquid; and an ethylene 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 151; 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 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 pipe 131 is connected with the outlet end of the second recycling coil pipe 151 through a pipeline;
the inlet end of the third recycling coil pipe is connected with the outlet end of the first recycling coil pipe 131 through a pipeline.
By arranging the multi-effect circulating recovery coil, the temperature difference between the waste gas in the exhaust unit 2 and the fresh air unit is effectively utilized, so that the heat source of the exhaust section is fully utilized, and the energy is further saved; the second electric three-way valve is arranged in the second circulation recovery section 15, and is used for controlling whether the glycol liquid exchanges heat with the fresh air in the section or not, so that the fresh air temperature can be regulated according to different environments, and the energy-saving air treatment system is suitable for fresh air treatment under different environments.
In the energy-saving air treatment system, the energy-saving fresh air system further comprises an automatic control system, the automatic control system comprises a central controller for controlling each section to work, 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 the fresh air inlet end, a second temperature sensor and a second humidity sensor arranged at the exhaust air inlet end, a proportional electric valve arranged on the surface cooling coil and a humidifying section switch controller, 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 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 the temperature and humidity preset module, and the central controller automatically adjusts the working states of each section according to preset temperature values and humidity values and temperature values read by the first temperature sensor, the first humidity sensor, the second temperature sensor and the second humidity sensor.
Because the temperature and the humidity of the outdoor fresh air in different areas and different seasons have great difference, through presetting the indoor required temperature, the central controller can compare the fresh air temperature and the humidity monitored by the first temperature sensor and the first humidity sensor with preset values, intelligently adjust the valve of each section body and the frequency of the compressor 31 of the external machine 3, thereby intelligently controlling the indoor temperature and humidity, controlling the temperature and humidity stability of the air inlet on the basis of saving energy, and enabling the error of the air inlet temperature and the preset values to be less than 0.5-1 ℃.
Example 1
Referring to fig. 1 to 4, an energy-saving air treatment system includes an external machine 3, an air intake unit 1 and an exhaust unit 2;
the air inlet unit 1 has the following structure and function:
the air intake unit 1 is provided with a fresh air fan section 11, an air intake primary filter section 12, a first circulation recovery section 13, an evaporation section 14, a second circulation recovery section 15, a surface cooling section 16, an auxiliary heating section 17, a condensation heat recovery section 18, an air intake secondary filter section 19 and an auxiliary humidifying section 110 which are sequentially arranged from a fresh air inlet end to a fresh air outlet end;
the fresh air fan section 11 is used for sucking external fresh air into the air inlet unit 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 regulating fresh air temperature;
the first recycling section 13, the second recycling section 15 and the third recycling section 23 are communicated with each other and are used for recycling heat in the exhaust unit 2 and the air inlet unit 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 unit 2 has the following structure and function:
the exhaust unit 2 is provided with an exhaust primary filter section 21, a washing spray section 22, a third recycling section 23, an oxidation disinfection section 24, an active carbon filter section 25 and an exhaust fan section 26 which are sequentially arranged from an exhaust inlet end to an exhaust outlet end;
the exhaust primary filtering section 21 and the water washing spraying section 22 are used for removing harmful substances such as amine, nitrogen and the like contained in the exhaust gas; the oxidation disinfection section 24, the activated carbon filtration section 25 and the exhaust fan section 26 are used for purification of exhaust gas.
The outer machine 3 has the following structure and function:
the outer machine 3 comprises a compressor 31, a refrigerant low-pressure section and a refrigerant high-pressure section, wherein the refrigerant low-pressure section is 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 structure of the energy-saving air treatment system is as follows:
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 in the condensation heat recovery section 18, the outlet end of the condensation heat recovery coil 181 is arranged at the lower part 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 a refrigerant high-pressure port 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;
the evaporation section 14 is internally provided with an evaporation coil 141, the inlet end of the evaporation coil 141 is arranged at the upper part in the evaporation section 14, the outlet end of the evaporation coil 141 is arranged at the lower part 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 the refrigerant low-pressure interface 33 through a pipeline.
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 first recycling coil 131, the second recycling coil 151, the second recycling straight pipe and the third recycling coil are filled with glycol liquid; and an ethylene glycol solution pump is arranged on the third circulating recovery coil pipe.
The inlet end of the second recycling and recovering coil pipe 151 is arranged at the upper part in the second recycling and recovering section 15, the outlet end of the second recycling and recovering coil pipe 151 is arranged at the lower part in the second recycling and recovering section 15, the inlet end of the second recycling and recovering straight pipe is arranged at the upper part in the second recycling and recovering section 15, and the outlet end of the second recycling and recovering straight pipe is connected with the outlet end of the second recycling and recovering coil pipe 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 the 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 the second recycling straight pipe;
the inlet end of the first recycling coil pipe 131 is arranged at the lower part in the first recycling section 13, and the inlet end of the first recycling coil pipe 131 is connected with the outlet end of the second recycling coil pipe 151 through a pipeline; the outlet end of the first recycling coil pipe 131 is arranged at the upper part in the first recycling section 13;
the outlet end of the third recycling coil pipe is arranged at the lower part in the third recycling section 23, and the inlet end of the third recycling coil pipe is connected with the outlet end of the first recycling coil pipe 131 through a pipeline;
the surface cooling section 16 comprises a surface cooling coil pipe arranged in the surface cooling section 16, and the surface cooling coil pipe is connected to a central air conditioning system to play a role in regulating fresh air temperature;
the installation height of the air inlet unit 1 is lower than that of the air 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 a high-efficiency filter arranged at the fresh air outlet, and the exhaust inlet end of the exhaust unit 2 is connected with the lower part of the room through a pipeline.
The automatic control system comprises a central controller for controlling the work of each section, 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 the fresh air inlet end, a second temperature sensor and a second humidity sensor arranged at the air exhaust inlet end, a proportional electric valve arranged on a surface cooling coil pipe and a humidifying section switch controller, 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 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 the temperature and humidity preset module, and the central controller automatically adjusts the working states of each section according to preset temperature values and humidity values and temperature values as well as temperature values read by the first temperature sensor, the first humidity sensor, the second temperature sensor and the second humidity sensor;
a primary air return port 111 is additionally arranged behind the evaporation section 14, and a secondary air return port 112 is additionally arranged behind the condensation heat recovery section 18; correspondingly, a secondary air return system 27 is additionally arranged at the rear section of the exhaust fan section 26, the secondary air return system 27 comprises an air return pipe connected to the rear section of the exhaust fan section 26, the air return pipe comprises an air return main pipe 271, a primary air return pipe and a secondary air return pipe 273, the primary air return pipe 272 is connected with a primary air return port 111, and the secondary air return pipe 273 is connected with a secondary air return port 112; the shunt positions of the primary air return pipe 272, the secondary air return pipe 273 and the air return main pipe 271 are provided with shunt valves, the wind flow shunted by the primary air return pipe 272 is 30% of the wind flow of the air return main pipe 271, and the wind flow shunted by the secondary air return pipe 273 is 70% of the wind flow of the air return main pipe 271;
the bottom in the washing spray section 22 is equipped with circulation water tank, circulation water tank is connected with a plurality of shower along waste gas entering direction range, the shower extends to the upper portion in the washing spray section 22, the shower is connected with the spray pump, be equipped with a plurality of atomizer on the shower.
The washing spray section 22 is internally provided with a medicine storage tank, the medicine storage tank is filled with acid solution, the medicine storage tank is connected with a circulating water tank through a feed pipe, the feed pipe is provided with a water stop valve, and an acidity controller for controlling the water stop valve to be opened or closed is arranged in the circulating water tank.
Because the indoor humiture reaches the proper degree of predetermineeing, through exhaust unit 2 exhaust gas's humiture and indoor suitable humiture are nearer, through the secondary return air, effectively utilize indoor humiture, reduce the entering quantity 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 predetermineeing humiture, improve exhaust unit 2 correspondingly, fully get rid of harmful substance such as amine, nitrogen in the exhaust gas through the improvement of washing spray section 22, in order to reach the requirement that the return air utilized.
2. The energy-saving air treatment system is used in different fresh air environments:
because the temperature and the humidity of the outdoor fresh air in different areas and different seasons have great difference, through presetting the indoor required temperature, the central controller can compare the fresh air temperature and the humidity monitored by the first temperature sensor and the first humidity sensor with preset values, and intelligently adjust the frequency of the valves of each section and the frequency of the compressor 31 of the external machine 3;
1) Taking low-temperature low-humidity outdoor fresh air in winter as an example:
assuming that the temperature and humidity of the outdoor fresh air is lower than a preset value, the central controller controls the compressor 31 of the external machine 3 to be closed, 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 heating the surface cooling section 16 and combining 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 proper humidity;
2) Taking outdoor fresh air with high temperature and high humidity in summer as an example:
the temperature and humidity of the outdoor fresh air are assumed to be lower than a preset value, so that the central controller adjusts the frequency of the compressor 31 of the external machine 3 according to the temperature and humidity detected by the temperature sensor and the humidity sensor arranged in the fresh air section and the difference value of the preset value, the fresh air is dehumidified through the evaporation section 14, the temperature of the fresh air is greatly reduced in the dehumidification process, the first electric three-way valve, the second electric three-way valve and the proportional electric valve are correspondingly controlled by the central controller to control the heat exchange efficiency, and therefore proper temperature is achieved, and at the moment, the central controller controls the humidifying section to be closed, so that the fresh air is not required to be humidified.
3) Taking the case that the outdoor fresh air temperature is 36 ℃ as an example:
assuming that the temperature detected 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, 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 port 32, and 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 this time, the fresh air is filtered by a primary filter of the air inlet primary filter section 12 and enters the first circulating recovery section 13, and the fresh air temperature is reduced to 26 ℃ through heat exchange with the first circulating recovery coil 131, at this time, the temperature of the inlet end of the first circulating recovery coil 131 is 17-23 ℃, and after heat exchange, the temperature of the outlet end of the first circulating recovery coil 131 is 24-28 ℃;
the fresh air passing through the first circulation recovery section 13 flows through the evaporation section 14, the high-pressure refrigerant passing through the condensation heat recovery section 18 is decompressed and evaporated to absorb heat through the electronic decompression valve 142 before entering the evaporation coil 141, so that when the fresh air passes through the section, the moisture in the fresh air is condensed on the outer wall of the evaporation coil 141, the purpose of dehumidifying the fresh air is achieved, the condensed water flows to the reservoir at the bottom of the evaporation section 14 along the coil, and the temperature of the fresh air 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, at this time, the temperature of the inlet end of the second circulation recovery coil 151 is 21-23 ℃, after heat exchange, the temperature of the outlet end of the second circulation recovery coil 151 is reduced to 17-21 ℃, and the temperature of the fresh air is increased to 17 ℃ after passing through the second circulation recovery section;
the fresh air passing through the second circulation recovery section 15 continuously flows to the surface cooling section 16, and the surface cooling section 16 controls the proportional electric valve by the central controller so as to control the temperature of the surface cooling section 16, thereby performing heat exchange with the corresponding fresh air to reach the proper fresh air temperature;
the fresh air 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 introduced into the condensation heat recovery coil 181, and the refrigerant is compressed and released, has higher temperature, enters the condensation heat recovery coil 181 to exchange heat with the fresh air of the section, heats the dehumidified supercooled fresh air to reach the proper temperature of a room, and adopts electric heating or other heating modes to carry out auxiliary heating on the fresh air to meet the temperature requirement of part of the room, so as to further control the temperature of the fresh air;
the heated fresh air continuously flows through the air inlet medium-efficiency filtering section 19 and other sections and enters a room;
the exhaust gas discharged from the room enters the exhaust unit 2 and sequentially passes through the primary filtering section and the water washing spray section 22, and the temperature of the exhaust gas passing through the water washing spray 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 circulation recovery section 23, the temperature is increased to 25-29 ℃ after heat exchange with a third circulation recovery coil, the temperature of the inlet end of the third circulation recovery coil in the section is 24-28 ℃, and the temperature of the outlet end of the third circulation recovery coil is 21-23 ℃;
the waste gas after passing through the third circulation recovery coil pipe is continuously discharged to the outside after passing through other sections such as an oxidation disinfection section 24, an active carbon filtering section 25 and the like.
Example 2
On the basis of embodiment 1, a reservoir is arranged at the bottom of the evaporation section 14, a spray section electric three-way valve is arranged at the water inlet end of the water washing spray section 22, the spray section electric three-way valve is connected with a central controller, 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 14 through a pipeline, an 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-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 joint of the bottom of the reservoir and the pipeline;
when the water level in the reservoir exceeds the high water level and liquid level sensor, the central controller controls the valve to be opened, and simultaneously, the central controller controls the first inlet end of the electric three-way valve of the spraying section to be closed, and the second inlet end of the electric three-way valve of the spraying section to be opened, so that the reservoir and the spraying pipe are communicated, water is supplied to the spraying pipe by 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 valve is controlled to be closed by the central controller, meanwhile, the second inlet end of the electric three-way valve of the spraying section is controlled to be closed by the central controller, and the first inlet end of the electric three-way valve of the spraying section is opened, so that water is supplied to the spraying pipe through the tap water pipe, the water supply of the washing spraying section 22 and the automation of the condensate water treatment of the evaporation section 14 are realized, the problem of the condensate water treatment of the evaporation section 14 is solved, and the water source required by the washing spraying is saved.
Example 3
According to the energy-saving air treatment system of the embodiment 1, the refrigerant high-pressure section is a refrigerant high-pressure coil coiled inside the side wall of the outer machine 3, a cooling spray pipe arranged at the upper part of the refrigerant high-pressure coil is used for radiating heat of a refrigerant high-pressure pipe through a cooling fan arranged inside the outer machine 3, 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, a first inlet end of the outer machine 3 electric three-way valve is connected with a tap water source, a 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, an outlet end of the outer machine 3 electric three-way valve is connected with a 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-level liquid level sensor and a low-level liquid level sensor, and a valve controlled by the central controller is arranged at the connection position of the bottom of the reservoir and the pipeline;
when the water level in the reservoir exceeds the high water level and liquid level sensor, the central controller controls the valve to be opened, and simultaneously, the central controller controls the first inlet end of the electric three-way valve of the outer machine 3 to be closed, and the second inlet end of the electric three-way valve of the outer machine 3 to be opened, so that the reservoir and the cooling spray pipe are communicated, water is supplied to the cooling spray pipe by 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, meanwhile, the central controller controls the second inlet end of the electric three-way valve of the external machine 3 to be closed, and the first inlet end of the electric three-way valve of the external machine 3 is opened, so that water is supplied to the cooling spray pipe through the tap water pipe, the water supply of the cooling spray pipe of the external machine 3 and the automation of the condensate water treatment of the evaporation section 14 are realized, the problem of the condensate water treatment of the evaporation section 14 is solved, and the water source required by the water cooling of the external machine 3 is also saved.
In summary, according to the energy-saving air treatment system provided by the invention, the temperature and humidity of the exhaust gas discharged by the exhaust unit are relatively close to the indoor proper temperature and humidity, the indoor temperature and humidity is effectively utilized by secondary return air, the entering amount of outdoor fresh air is reduced, or the circulation of indoor air is realized, the energy waste caused by the overlarge difference between the outdoor fresh air temperature and the preset temperature and humidity is reduced, the exhaust unit is correspondingly improved, and the harmful substances such as amine, nitrogen and the like in the exhaust gas are fully removed by improving the water washing spraying section, so that the requirement of return air utilization is met. Because the temperature and the humidity of the outdoor fresh air in different areas and different seasons have great difference, through presetting the indoor required temperature, the central controller can compare the fresh air temperature and the humidity monitored by the first temperature sensor and the first humidity sensor with preset values, and intelligently adjust the frequencies of the valves of each section body and the compressor of the external machine, so that the indoor temperature and the humidity are intelligently controlled, the temperature and humidity stability of the air inlet is controlled on the basis of saving energy, and the error of the air inlet temperature and the preset values is less than 0.5-1 ℃.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent changes made by the specification and drawings of the present invention, or direct or indirect application in the relevant art, are included in the scope of the present invention.

Claims (7)

1. An energy-saving air treatment system is characterized by comprising an air inlet unit, an exhaust unit and an external machine;
the air inlet unit is sequentially provided with a fresh air fan section, an air inlet primary filtering section, a first circulating recovery section, an evaporation section, a second circulating recovery section, a surface cooling section, an auxiliary heating section, a condensation heat recovery section, an air inlet middle-effect filtering section and an auxiliary humidifying section from a fresh air inlet end to a fresh air outlet end;
the exhaust unit is sequentially provided with an exhaust primary filtering section, a washing spraying section, a third recycling section, an oxidation disinfection section, an active carbon filtering section and an exhaust fan section from an exhaust inlet end to an exhaust outlet end; the first circulation recovery section, the second circulation recovery section and the third circulation recovery section are communicated with each other and are used for recycling heat in the exhaust unit and the air inlet unit;
a primary air return port is arranged behind the evaporation section, and a secondary air return port is arranged behind the condensation heat recovery section; correspondingly, a secondary air return system is arranged at the rear section of the exhaust fan section, the secondary air return system comprises an air return pipe connected behind the 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 by 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 split positions of the primary return air pipe, the secondary return air pipe and the return air main pipe are provided with split valves; the air flow split by the primary air return pipe is 30% of the air flow of the main air return pipe, and the air flow split by the secondary air return pipe is 70% of the air flow of the main air return pipe;
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 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 through a pipeline, the outlet end of the spray section electric three-way valve is connected with a spray pipe, the shower is provided with the washing spray pump, the cistern is provided with level sensor, level sensor includes high water level sensor and low water level sensor, level sensor with central controller connects, cistern bottom with the pipeline junction is provided with by central controller control's valve.
2. The energy-saving air treatment system according to claim 1, wherein a circulating water tank is arranged at the bottom in the water washing spray section, the circulating water tank is connected with the spray pipe, the spray pipe extends to the upper part in the water washing spray section, and a plurality of atomizing spray heads are arranged on the spray pipe.
3. The energy-saving air treatment system according to claim 2, wherein a medicine storage tank is further arranged in the water washing spray section, an acid solution is filled in the medicine storage tank, the medicine storage tank is connected with a circulating water tank through a feeding pipe, the feeding pipe is provided with a water stop valve, and an acidity controller for controlling the water stop valve to be opened or closed is arranged in the circulating water tank.
4. The energy efficient air treatment system according to claim 2, wherein the circulation tank is connected with a plurality of shower pipes arranged in an exhaust gas entering direction.
5. The energy efficient air treatment system according to claim 1, wherein a condensing heat recovery coil and a condensing heat recovery straight pipe are installed in the condensing heat recovery section;
the external machine 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, a refrigerant low-pressure interface is arranged on the refrigerant low-pressure section, and a refrigerant high-pressure interface is arranged on the refrigerant high-pressure section;
the lower part in the condensation heat recovery section is provided with a first electric three-way valve, 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-going pipe, and the outlet end of the condensation heat recovery coil pipe is connected with the inlet end of the condensation heat recovery straight-going pipe;
an evaporation coil is arranged in the evaporation section, the outlet end of the condensation heat recovery straight pipe is connected with the inlet end of the evaporation coil through a pipeline, a drying filter and an electronic pressure reducing valve are arranged at the joint of the outlet end of the condensation heat recovery straight pipe and the inlet end of the evaporation coil, and the outlet end of the evaporation coil is connected with a low-pressure interface of a refrigerant through a pipeline.
6. The energy efficient air treatment system of claim 1, wherein the first recycling stage comprises a first recycling coil, the second recycling stage comprises a second recycling coil and a second recycling straight line, and the third recycling stage comprises a third recycling coil;
the first recycling coil pipe, the second recycling straight pipe and the third recycling coil pipe are filled with glycol liquid;
the outlet end of the second recycling straight pipe is connected with the outlet end of the second recycling coil pipe; the upper part in the second recycling section 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 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, 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 pipe is connected with the outlet end of the second recycling coil pipe through a pipeline;
and the inlet end of the third recycling coil pipe is connected with the outlet end of the first recycling coil pipe through a pipeline.
7. The energy efficient air treatment system 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, 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 the fresh air inlet end, a second temperature sensor and a second humidity sensor which are arranged at the exhaust air inlet end, a proportional motor valve and a humidifying section switch controller which are arranged on the surface cooling coil pipe;
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 the room are preset through the temperature and humidity preset module, and the central controller automatically adjusts the working state of each section body according to preset temperature values and humidity values and 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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