CN109373480B - Energy-saving purification air-conditioning system combining evaporative cooling and evaporative condensation - Google Patents
Energy-saving purification air-conditioning system combining evaporative cooling and evaporative condensation Download PDFInfo
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- CN109373480B CN109373480B CN201811133715.9A CN201811133715A CN109373480B CN 109373480 B CN109373480 B CN 109373480B CN 201811133715 A CN201811133715 A CN 201811133715A CN 109373480 B CN109373480 B CN 109373480B
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0035—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using evaporation
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
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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
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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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
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
- F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
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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
- 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
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
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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
- 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
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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
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
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- 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
Abstract
The invention discloses an energy-saving purification air-conditioning system combining evaporative cooling and evaporative condensation, which comprises a mechanical refrigeration outdoor unit arranged outdoors, an indoor unit arranged indoors and connected with the mechanical refrigeration outdoor unit through a pipeline, and an indirect evaporative cooling heat recovery fresh air handling unit arranged in an indoor suspended ceiling layer. According to the energy-saving purification air-conditioning system combining evaporative cooling and evaporative condensation, the indirect evaporative cooling heat recovery fresh air unit is organically combined with the traditional mechanical refrigeration air-conditioning outdoor unit, so that the condensation temperature and pressure of the outdoor unit in high-temperature weather can be effectively reduced, and the refrigeration energy efficiency and the working stability of the compressor are improved.
Description
Technical Field
The invention belongs to the technical field of air conditioning equipment, and relates to an energy-saving purification air conditioning system combining evaporative cooling and evaporative condensation.
Background
In high-temperature weather in summer, the mechanical refrigeration air conditioner outdoor unit is in an adverse environment, heat dissipation is not smooth, refrigeration efficiency is reduced, even the phenomenon of compressor failure and shutdown occurs, most people pull down the set temperature of the indoor unit again and again, but the comfort requirement cannot be met; meanwhile, in order to preserve indoor cold and save electricity charge, the doors and windows of a common room are closed tightly, so that fresh air is lacked indoors, and the human body has the symptoms of immunity reduction, dizziness, cold and the like; meanwhile, the huge energy consumption of the air conditioner aggravates the peak power utilization pressure.
Disclosure of Invention
The invention aims to provide an energy-saving purification air-conditioning system combining evaporative cooling and evaporative condensation, which organically combines an indirect evaporative cooling heat recovery fresh air unit with a traditional mechanical refrigeration air-conditioning outdoor unit, can effectively reduce the condensation temperature and pressure of the outdoor unit in high-temperature weather, and improves the refrigeration energy efficiency and the working stability of a compressor.
The technical scheme adopted by the invention is that the energy-saving purification air-conditioning system combining evaporative cooling and evaporative condensation comprises a mechanical refrigeration outdoor unit arranged outdoors, an indoor unit arranged indoors and connected with the mechanical refrigeration outdoor unit through a pipeline, and an indirect evaporative cooling heat recovery fresh air handling unit arranged in an indoor suspended ceiling layer.
The present invention is also characterized in that,
the mechanical refrigeration outdoor unit comprises an outdoor unit shell, wherein an air inlet and an air outlet a are respectively arranged on two corresponding sides of the outdoor unit shell, a coarse-effect air filter a, a direct evaporative cooling unit, a compressor, a condenser and an exhaust fan a are sequentially arranged in the outdoor unit shell according to the air inlet direction, and the condenser is sequentially connected with the compressor and the indoor unit through copper pipes and forms a closed circulation loop.
The direct evaporative cooling unit comprises a filler, a water distributor a is arranged above the filler, a water storage tank a is arranged below the filler, the water distributor a and the water storage tank a are connected through a water supply pipe a, and a circulating water pump a and a miniature electronic water treatment instrument a are further arranged on the water supply pipe a.
The filler is a GLASDek inorganic filler.
The indoor unit comprises an indoor unit shell, an air supply outlet a is formed in one side, facing indoors, of the indoor unit shell, an evaporator is arranged on one side, away from the air supply outlet a, in the indoor unit shell, a cross-flow fan is arranged between the evaporator and the air supply outlet a, a condenser is sequentially connected with a compressor and the evaporator through copper pipes and forms a closed circulation loop, a four-way electromagnetic reversing valve is further arranged between the condenser and the compressor, and a thermal expansion valve is further arranged between the evaporator and the condenser.
The indoor unit shell positioned below the evaporator is also provided with a condensed water drainage hole which is used for draining the condensed water to the outside by connecting a condensed water drainage pipe.
The indirect evaporative cooling heat recovery fresh air handling unit comprises an organic unit shell, wherein an upper air duct and a lower air duct which are arranged in parallel up and down are arranged in the unit shell, and a sensible heat exchanger is arranged between the upper air duct and the lower air duct;
the upper air duct structure is as follows: the two opposite side walls of the unit shell are respectively provided with a fresh air inlet and a return air inlet, the fresh air inlet is communicated with the outside through an air pipe, and the return air inlet is communicated with the inside through an air pipe;
the lower air duct structure is as follows: an air outlet b and an air supply outlet b are respectively arranged on two opposite side walls of the unit shell, an exhaust fan b is arranged on one side, close to the air outlet b, in the lower air duct, an air feeder is arranged on one side, close to the air supply outlet b, in the lower air duct, the air outlet b is communicated with the outside through an air pipe, and the air supply outlet b is communicated with the inside through an air pipe.
A coarse air filter c and a medium air filter are sequentially arranged at one side, close to a fresh air inlet, in the upper air channel according to the fresh air flowing direction, and a coarse plate type air filter and an evaporative cooling spraying device a are sequentially arranged at one side, close to a return air inlet, in the upper air channel according to the return air flowing direction;
one side of the lower air duct close to the air outlet b is also provided with a water baffle a, and one side of the lower air duct close to the air supply outlet b is sequentially provided with an evaporative cooling spraying device b and a water baffle b according to the flow direction of fresh air.
The evaporative cooling spraying device a comprises a water storage tank b arranged in the upper air channel and a water distributor b spraying towards the coarse-effect plate-type air filter, the water storage tank b is connected with the water distributor b through a water supply pipe b, and a micro electronic water treatment instrument b and a circulating water pump b are also arranged on the water supply pipe b;
the evaporation cooling spraying device b comprises a water distributor c which is arranged in the lower air duct and sprays away from the water baffle b, the water distributor c is connected with the water storage tank b through a water supply pipe b, and the water distributor c and the water distributor b share the water supply pipe b.
One ends of the water distributors c and b close to the water supply pipe b are respectively provided with a valve a and a valve b.
The invention has the beneficial effects that:
(1) the indirect evaporative cooling heat recovery fresh air handling unit is organically combined with the traditional mechanical refrigeration air conditioning outdoor unit, so that the condensation temperature and pressure of the outdoor unit in high-temperature weather can be effectively reduced, the refrigeration energy efficiency and the working stability of the compressor are improved, the cost is low, and the implementation is convenient.
(2) The invention adopts the double-flow-channel spray type indirect evaporative cooling heat recovery fresh air unit to assist the evaporative condensation type mechanical refrigeration split air conditioner, and can ensure the indoor air quality and the comfort requirement under different conditions.
(3) Compared with the traditional air conditioning system, the air conditioning system can fully utilize the dry air energy of renewable energy sources, improve the energy utilization efficiency, save energy, reduce emission and protect the environment.
Drawings
FIG. 1 is a schematic diagram of the air conditioning system of the present invention;
FIG. 2 is a schematic view of a mechanical outdoor unit of the air conditioning system of the present invention;
FIG. 3 is a schematic view of the construction of an indoor unit of the air conditioning system of the present invention;
fig. 4 is a schematic structural diagram of an indirect evaporative cooling heat recovery fresh air handling unit of the air conditioning system of the present invention.
In the figure, 1, a mechanical refrigeration outdoor unit, 2, an indoor unit, 3, an indirect evaporative cooling heat recovery fresh air unit, 4, an air inlet, 5, a coarse air filter a, 6, a miniature electronic water treatment instrument a, 7, a circulating water pump a, 8, a filler, 9, a water storage tank a, 10, a compressor, 11, a four-way electromagnetic reversing valve, 12, a condenser, 13, a thermal expansion valve, 14, an exhaust fan a, 15, an exhaust outlet a, 16, a water distributor a, 17, an outdoor unit shell, 18, a condensed water discharge hole, 19, an evaporator, 20, a cross-flow fan, 21, an air supply outlet a, 22, an exhaust outlet b, 23, an exhaust fan b, 24, a water baffle a, 25, a sensible heat exchanger, 26, a valve a, 27, a water distributor c, 28, a miniature electronic water treatment instrument b, 29, a water baffle b, 30, an air feeder, 31, an air supply outlet b, 32, a water storage tank b, 33, a return air inlet, 34. coarse effect plate air filter 35, circulating water pump b, 36, water distributor b, 37, valve b, 38, medium effect air filter 39, coarse effect air filter c, 40, fresh air inlet.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The structure of the energy-saving purifying air-conditioning system is shown in figure 1, and the energy-saving purifying air-conditioning system comprises a mechanical refrigeration outdoor unit 1 arranged outdoors, an indoor unit 2 arranged indoors and connected with the mechanical refrigeration outdoor unit 1 through a pipeline, and an indirect evaporative cooling heat recovery fresh air unit 3 arranged in an indoor suspended ceiling layer.
As shown in fig. 2, the mechanical refrigeration outdoor unit 1 includes an outdoor unit casing 17, the two corresponding sides of the outdoor unit casing 17 are respectively provided with an air inlet 4 and an air outlet a15, a coarse air filter a5, a direct evaporative cooling unit, a compressor 10, a condenser 12 and an exhaust fan a are sequentially arranged in the outdoor unit casing 17 according to an air inlet direction, and the condenser 12 is sequentially connected to the compressor 10 and the indoor unit 2 through copper pipes to form a closed circulation loop.
The direct evaporation cooling unit comprises a filler 8, a water distributor a16 is arranged above the filler 8, a water storage tank a9 is arranged below the filler 8, the water distributor a16 is connected with the water storage tank a9 through a water supply pipe a, and a circulating water pump a7 and a miniature electronic water processor a6 are further arranged on the water supply pipe a.
The filler 8 is a GLASDek inorganic filler.
As shown in fig. 3, the indoor unit 2 includes an indoor unit casing, an air supply opening a21 is provided on a side of the indoor unit casing facing the indoor, an evaporator 19 is provided on a side of the indoor unit casing away from the air supply opening a21, a cross flow fan 20 is provided between the evaporator 19 and the air supply opening a21, a condenser 12 is connected to the compressor 10 and the evaporator 19 in sequence through a copper pipe to form a closed circulation loop, a four-way electromagnetic directional valve 11 is further provided between the condenser 12 and the compressor 10, and a thermal expansion valve 13 is further provided between the evaporator 19 and the condenser 12.
The indoor unit casing below the evaporator 19 is further provided with a condensed water discharge hole 18, and the condensed water discharge hole 18 discharges the condensed water to the outside of the room by connecting a condensed water discharge pipe.
As shown in fig. 4, the indirect evaporative cooling heat recovery fresh air handling unit 3 includes a unit housing, an upper air duct and a lower air duct which are vertically and parallelly arranged are provided in the unit housing, and a sensible heat exchanger 25 is provided between the upper air duct and the lower air duct;
the upper air duct structure is as follows: the two opposite side walls of the unit shell are respectively provided with a fresh air inlet 40 and a return air inlet 33, the fresh air inlet 40 is communicated with the outside through an air pipe, and the return air inlet 33 is communicated with the inside through an air pipe;
the lower air duct structure is as follows: air outlet b22 and air supply outlet b31 are respectively arranged on two opposite side walls of the unit shell, an air exhaust fan b23 is arranged on one side, close to air outlet b22, in the lower air duct, an air supply fan 30 is arranged on one side, close to air supply outlet b31, in the lower air duct, air outlet b22 is communicated with the outside through an air pipe, and air supply outlet b31 is communicated with the inside of the room through an air pipe.
A coarse air filter c39 and a medium air filter 38 are sequentially arranged at one side of the upper air duct close to the fresh air inlet 40 according to the fresh air flowing direction, and a coarse plate air filter 34 and an evaporative cooling spraying device a are sequentially arranged at one side of the upper air duct close to the return air inlet 33 according to the return air flowing direction;
a water baffle a24 is further arranged on one side of the lower air duct close to the air outlet b22, and an evaporative cooling spraying device b and a water baffle b29 are sequentially arranged on one side of the lower air duct close to the air supply outlet b31 according to the flow direction of fresh air.
The evaporative cooling spraying device a comprises a water storage tank b32 arranged in an upper air duct and a water distributor b36 spraying towards the coarse-effect plate-type air filter 34, wherein the water storage tank b32 is connected with the water distributor b36 through a water supply pipe b, and the water supply pipe b is also provided with a miniature electronic water treatment instrument b28 and a circulating water pump b 35;
the evaporative cooling spraying device b comprises a water distributor c27 which is arranged in the lower air duct and sprays away from a water baffle b29, the water distributor c27 is connected with a water storage tank b32 through a water supply pipe b, and the water distributor c27 and the water distributor b36 share the water supply pipe b.
One ends of the water distributor c27 and the water distributor b36 close to the water supply pipe b are respectively provided with a valve a26 and a valve b 37.
The working principle of the air conditioning system is as follows:
(1) all fresh air mode of indirect evaporative cooling heat recovery air conditioner
The air conditioner is suitable for relatively dry and mild outdoor air, the indirect evaporative cooling heat recovery fresh air unit 3 is started, the water distributor c27 in the lower air duct is closed, the water distributor b36 in the upper air duct is started, outdoor fresh air enters the indirect evaporative cooling heat recovery fresh air unit 3 through the fresh air inlet 40, is sequentially filtered by the coarse air filter c39 and the middle-effect air filter 38 and enters the sensible heat exchanger 25, indoor return air enters the upper air duct through the return air inlet 33, is sprayed and cooled through the water distributor b36, the outdoor fresh air is subjected to equal-humidity cooling through the sensible heat exchanger 25, then the cooled fresh air is sent into a room through the air feeder 30 through the air feeder b31 to eliminate indoor heat and humidity load, and the indoor return air is exhausted to the outdoor through the exhaust fan b23 through the exhaust outlet b 22.
(2) Indirect evaporative cooling heat recovery-direct evaporative cooling ventilation air conditioner fresh air mode
The method is suitable for dry and hot outdoor air, on the basis of the mode (1), the water distributor c27 in the lower air channel is started, outdoor fresh air is subjected to wet cooling and precooling through the sensible heat exchanger 25 and the like, then is humidified and cooled through the water distributor c27 in the lower air channel, and then is sent into the room through the air feeder 30 through the air supply outlet b31, so that the indoor heat and humidity load is eliminated, and the steps are repeated in a circulating manner.
(3) Indirect evaporative cooling heat recovery-mechanical refrigeration air conditioner fresh air + return air mode
The evaporative condensing mechanical refrigeration air conditioner is suitable for relatively humid and hot outdoor air, on the basis of (1), the evaporative condensing mechanical refrigeration air conditioner is started, the outdoor fresh air is subjected to equal humidity cooling through the sensible heat exchanger 25, then the cooled fresh air is sent into the room through the air feeder 30 through the air supply outlet b31, and is mixed with the air sent into the room after being cooled and dehumidified by the evaporator 19 in the indoor unit of the evaporative condensing mechanical refrigeration air conditioner, so that the indoor heat and humidity load is eliminated, and the operation is repeated in a circulating manner;
wherein, the working process of the evaporative condensation type mechanical refrigeration air conditioner is as follows:
in summer, a low-temperature and low-pressure gas refrigerant is compressed into a high-temperature and high-pressure gas refrigerant by a compressor 10, enters a condenser 12 through a four-way electromagnetic directional valve 11, is condensed to release heat to be changed into a low-temperature and high-pressure liquid refrigerant, the released heat is taken away by cold air which is cooled by a filler 8 sprayed by a water distributor a16 and passes through a direct evaporation cooling unit of the mechanical refrigeration outdoor unit 1, the heat-released refrigerant is throttled by a thermostatic expansion valve 13 to be changed into a low-temperature and low-pressure liquid refrigerant, and finally, the low-temperature and low-pressure gas refrigerant is obtained by heat absorption and vaporization in an evaporator 19 and flows back to.
(4) Heat-insulation humidifying, heat recovery and heat pump heating air-conditioning heating fresh air and return air mode
The air conditioner is suitable for relatively cold and dry outdoor air, an indirect evaporative cooling heat recovery fresh air unit 3 and an evaporative condensation type split air conditioner heat pump heating system are started, a water distributor a16 of an outdoor machine 1 of mechanical refrigeration is closed, a water distributor b36 in an upper air duct of the indirect evaporative cooling heat recovery fresh air unit 3 is closed, a water distributor c27 in a lower air duct is opened, outdoor fresh air enters the indirect evaporative cooling heat recovery fresh air unit 3 through a fresh air opening 40, is sequentially filtered by a coarse air filter c39 and a medium air filter 38 and enters a sensible heat exchanger 25, indoor return air enters an upper air duct through a return air opening 33 and enters the sensible heat exchanger 25 to preheat the outdoor fresh air, the preheated outdoor fresh air is sprayed and humidified through the water distributor c27, then cooled fresh air is sent into a room through an air blower 30 through an air supply opening b31 and is mixed with indoor air, and on the other hand, an evaporator 19 (which is equivalent to a condenser) in the indoor machine 2 of the evaporative condensation type mechanical refrigeration a21 is sent into the room, the cold and moisture load in the room is eliminated together with the fresh air sent by the air supply outlet b31, then the return air is preheated by the indirect evaporative cooling heat recovery fresh air unit 3 and is discharged to the outside, and the process is repeated in a circulating way;
the working process of the evaporation condensation type mechanical refrigeration air conditioner is that the four-way electromagnetic directional valve 11 switches the flow direction, at the moment, the evaporator 19 is equivalent to a condenser in a refrigeration cycle, the condenser 12 is equivalent to an evaporator in the refrigeration cycle, and meanwhile, a direct evaporation cooling unit of the mechanical refrigeration outdoor unit 1 is normally closed; the low-temperature and low-pressure gas refrigerant is compressed into a high-temperature and high-pressure gas refrigerant by the compressor 10, enters the evaporator 19 (which is equivalent to a condenser at this time) through the four-way electromagnetic directional valve 11, is condensed and releases heat to become a low-temperature and high-pressure liquid refrigerant, then is throttled by the thermostatic expansion valve 13 to become the low-temperature and low-pressure liquid refrigerant, finally absorbs heat in the condenser 12 (which is equivalent to an evaporator at this time) and is evaporated into the low-temperature and low-pressure gas refrigerant, and then flows back to the compressor 10 to continue circulation.
Claims (1)
1. An energy-saving purification air-conditioning system combining evaporative cooling and evaporative condensation is characterized by comprising a mechanical refrigeration outdoor unit (1) arranged outdoors, an indoor unit (2) arranged indoors and connected with the mechanical refrigeration outdoor unit (1) through a pipeline, and an indirect evaporative cooling heat recovery fresh air unit (3) arranged in an indoor suspended ceiling layer;
the mechanical refrigeration outdoor unit (1) comprises an outdoor unit shell (17), wherein an air inlet (4) and an air outlet a (15) are respectively arranged on two corresponding sides of the outdoor unit shell (17), a coarse-effect air filter a (5), a direct evaporative cooling unit, a compressor (10), a condenser (12) and an exhaust fan a (14) are sequentially arranged in the outdoor unit shell (17) according to the air inlet direction, and the condenser (12) is sequentially connected with the compressor (10) and the indoor unit (2) through copper pipes to form a closed circulation loop;
the indoor unit (2) comprises an indoor unit shell, an air supply outlet a (21) is formed in one side, facing the indoor, of the indoor unit shell, an evaporator (19) is arranged on one side, away from the air supply outlet a (21), of the indoor unit shell, a cross-flow fan (20) is arranged between the evaporator (19) and the air supply outlet a (21), the condenser (12) is sequentially connected with the compressor (10) and the evaporator (19) through a copper pipe to form a closed circulation loop, a four-way electromagnetic reversing valve (11) is further arranged between the condenser (12) and the compressor (10), and a thermal expansion valve (13) is further arranged between the evaporator (19) and the condenser (12);
the direct evaporative cooling unit comprises a filler (8), a water distributor a (16) is arranged above the filler (8), a water storage tank a (9) is arranged below the filler (8), the water distributor a (16) and the water storage tank a (9) are connected through a water supply pipe a, and a circulating water pump a (7) and a miniature electronic water treatment instrument a (6) are further arranged on the water supply pipe;
the filler (8) adopts GLASDek inorganic filler;
the indoor unit shell positioned below the evaporator (19) is also provided with a condensed water discharge hole (18), and the condensed water discharge hole (18) is connected with a condensed water discharge pipe to discharge the condensed water to the outside;
the indirect evaporative cooling heat recovery fresh air handling unit (3) comprises a unit shell, wherein an upper air duct and a lower air duct which are arranged in parallel are arranged in the unit shell from top to bottom, and a sensible heat exchanger (25) is arranged between the upper air duct and the lower air duct;
the upper air duct structure is as follows: a fresh air inlet (40) and a return air inlet (33) are respectively arranged on two opposite side walls of the unit shell, the fresh air inlet (40) is communicated with the outside through an air pipe, and the return air inlet (33) is communicated with the inside through an air pipe;
the lower air duct structure is as follows: an air outlet b (22) and an air supply outlet b (31) are respectively arranged on two opposite side walls of the unit shell, an air exhaust fan b (23) is arranged on one side, close to the air outlet b (22), in the lower air duct, an air supply fan (30) is arranged on one side, close to the air supply outlet b (31), in the lower air duct, the air outlet b (22) is communicated with the outside through an air pipe, and the air supply outlet b (31) is communicated with the inside through an air pipe;
a coarse-effect air filter c (39) and a medium-effect air filter (38) are sequentially arranged on one side, close to a fresh air inlet (40), in the upper air channel according to the fresh air flowing direction, and a coarse-effect plate type air filter (34) and an evaporative cooling spraying device a are sequentially arranged on one side, close to a return air inlet (33), in the upper air channel according to the return air flowing direction;
a water baffle a (24) is further arranged on one side, close to the air outlet b (22), in the lower air duct, and an evaporative cooling spraying device b and a water baffle b (29) are sequentially arranged on one side, close to the air supply outlet b (31), in the lower air duct according to the flow direction of fresh air;
the evaporative cooling spraying device a comprises a water storage tank b (32) arranged in an upper air channel and a water distributor b (36) spraying towards the coarse-effect plate-type air filter (34), the water storage tank b (32) and the water distributor b (36) are connected through a water supply pipe b, and a micro electronic water treatment instrument b (28) and a circulating water pump b (35) are further arranged on the water supply pipe b;
the evaporative cooling spraying device b comprises a water distributor c (27) which is arranged in the lower air duct and sprays away from a water baffle b (29), the water distributor c (27) is connected with the water storage tank b (32) through a water supply pipe b, and the water distributor c (27) and the water distributor b (36) share one water supply pipe b;
one ends of the water distributor c (27) and the water distributor b (36) close to the water supply pipe b are respectively provided with a valve a (26) and a valve b (37);
the method comprises four working modes, specifically:
(1) all fresh air mode of indirect evaporative cooling heat recovery air conditioner
The air conditioner is suitable for relatively drying and mild outdoor air, an indirect evaporative cooling heat recovery fresh air unit (3) is started, a water distributor c (27) in a lower air duct is closed, a water distributor b (36) in an upper air duct is started, outdoor fresh air enters the indirect evaporative cooling heat recovery fresh air unit (3) through a fresh air inlet (40), is sequentially filtered through a coarse effect air filter c (39) and a middle effect air filter (38) and enters a sensible heat exchanger (25), indoor return air enters an upper air duct through a return air inlet (33), is subjected to spray cooling through the water distributor b (36), is subjected to equal humidity cooling through the sensible heat exchanger (25), and then is sent into the room through an air feeder (30) and an air supply outlet b (31), so that the indoor heat and humidity load is eliminated, and is discharged to the outside through an exhaust outlet b (22) through an exhaust fan b (23);
(2) indirect evaporative cooling heat recovery-direct evaporative cooling ventilation air conditioner fresh air mode
The air conditioner is suitable for dry and hot outdoor air, on the basis of a fresh air mode of an indirect evaporative cooling heat recovery air conditioner, a water distributor c (27) in a lower air channel is opened, outdoor fresh air is subjected to wet cooling and precooling through a sensible heat exchanger (25) and the like, then is humidified and cooled by the water distributor c (27) in the lower air channel, and then is sent into the room through an air feeder (30) through an air supply outlet b (31), so that the indoor heat and humidity load is eliminated, and the operation is repeated in a circulating manner;
(3) indirect evaporative cooling heat recovery-mechanical refrigeration air conditioner fresh air + return air mode
The air conditioner is suitable for outdoor air to be relatively humid and hot, on the basis of a full fresh air mode of an indirect evaporative cooling heat recovery air conditioner, an evaporative condensing type mechanical refrigeration air conditioner is started, outdoor fresh air is subjected to equal humidity cooling through a sensible heat exchanger (25), then the cooled fresh air is sent into a room through an air feeder (30) through an air supply outlet b (31), and is mixed with air sent into the room after being cooled and dehumidified by an evaporator (19) in an indoor unit of the evaporative condensing type mechanical refrigeration air conditioner, so that the indoor heat and humidity load is eliminated, and the operation is repeated in a circulating manner;
(4) heat-insulation humidifying, heat recovery and heat pump heating air-conditioning heating fresh air and return air mode
The air conditioner is suitable for outdoor air to be relatively cold and dry, an indirect evaporative cooling heat recovery fresh air unit (3) and an evaporative condensation type split air conditioning heat pump heating system are started, a water distributor a (16) of a mechanical refrigeration outdoor unit (1) is closed, a water distributor b (36) in an upper air channel of the indirect evaporative cooling heat recovery fresh air unit (3) is closed, a water distributor c (27) in a lower air channel is opened, outdoor fresh air enters the indirect evaporative cooling heat recovery fresh air unit (3) through a fresh air port (40), is sequentially filtered through a coarse air filter c (39) and a medium air filter (38) and enters a sensible heat exchanger (25), indoor return air enters the upper air channel through a return air port (33) and enters the sensible heat exchanger (25) to preheat outdoor fresh air, the preheated outdoor fresh air is sprayed and humidified through the water distributor c (27), and then the cooled fresh air is sent into a room through a blower (30) through an air supply air port b (31), the air is mixed with indoor air, on the other hand, an evaporator (19) in the evaporation condensation type mechanical refrigeration air-conditioning indoor unit (2) releases heat and is sent into the room through an air supply opening a (21), the heat and humidity load in the room is eliminated together with fresh air sent by an air supply opening b (31), then, the return air is preheated by an indirect evaporation cooling heat recovery fresh air unit (3) and is discharged to the outside, and the circulation is repeated.
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| CN201811133715.9A CN109373480B (en) | 2018-09-27 | 2018-09-27 | Energy-saving purification air-conditioning system combining evaporative cooling and evaporative condensation |
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| CN201811133715.9A CN109373480B (en) | 2018-09-27 | 2018-09-27 | Energy-saving purification air-conditioning system combining evaporative cooling and evaporative condensation |
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| CN109373480A CN109373480A (en) | 2019-02-22 |
| CN109373480B true CN109373480B (en) | 2020-12-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022243713A1 (en) * | 2021-05-18 | 2022-11-24 | Poly-Rek D.O.O. | Climate control systems with indirect and direct adiabatic cooling |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288599A (en) * | 2020-03-12 | 2020-06-16 | 西安工程大学 | Evaporative cooling ventilation air-conditioning system based on air diffuser and solar technology |
| CN112066493A (en) * | 2020-08-05 | 2020-12-11 | 广东申菱环境系统股份有限公司 | Indirect evaporative cooling device with good air conductivity and method |
| CN113405181B (en) * | 2021-07-14 | 2022-10-25 | 太原理工大学 | Evaporative cooling and evaporative condensation integrated air handling unit |
| CN114554792A (en) * | 2022-01-27 | 2022-05-27 | 华为数字能源技术有限公司 | Computer lab cooling system and data center |
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| CN204084682U (en) * | 2014-08-08 | 2015-01-07 | 西安工程大学 | Purification type evaporative cooling air-treatment unit |
| CN107449076A (en) * | 2017-07-17 | 2017-12-08 | 西安工程大学 | Add direct evaporating-cooling and the compound split air conditioner air-conditioning system of mechanical refrigeration indirectly |
| CN208998234U (en) * | 2018-09-27 | 2019-06-18 | 西安工程大学 | In conjunction with the cooling energy-saving and purifying air-conditioning system with evaporative condenser of evaporation |
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| CN204084682U (en) * | 2014-08-08 | 2015-01-07 | 西安工程大学 | Purification type evaporative cooling air-treatment unit |
| CN107449076A (en) * | 2017-07-17 | 2017-12-08 | 西安工程大学 | Add direct evaporating-cooling and the compound split air conditioner air-conditioning system of mechanical refrigeration indirectly |
| CN208998234U (en) * | 2018-09-27 | 2019-06-18 | 西安工程大学 | In conjunction with the cooling energy-saving and purifying air-conditioning system with evaporative condenser of evaporation |
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| CN109373480A (en) | 2019-02-22 |
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Effective date of registration: 20220330 Address after: 311802 Ruan Shi Zhen Jin Ling Cun, Zhuji City, Shaoxing City, Zhejiang Province Patentee after: Zhejiang LingDian cooling equipment Co.,Ltd. Address before: 710048 No. 19 Jinhua South Road, Shaanxi, Xi'an Patentee before: XI'AN POLYTECHNIC University |
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