CN106091133B - Air treatment device and method - Google Patents

Air treatment device and method Download PDF

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Publication number
CN106091133B
CN106091133B CN201610630300.7A CN201610630300A CN106091133B CN 106091133 B CN106091133 B CN 106091133B CN 201610630300 A CN201610630300 A CN 201610630300A CN 106091133 B CN106091133 B CN 106091133B
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Prior art keywords
solution
air
output end
electric valve
box body
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CN201610630300.7A
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CN106091133A (en
Inventor
张恺
王明钰
牛晓峰
蔡利腾
孙雷
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Nanjing Tech University
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Nanjing Tech University
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0059Indoor units, e.g. fan coil units characterised by heat exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0071Indoor units, e.g. fan coil units with means for purifying supplied air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83Control 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28Arrangement or mounting of filters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30Arrangement or mounting of heat-exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-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
    • F24F3/12Air-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
    • F24F3/14Air-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
    • F24F3/1411Air-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 by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
    • F24F3/1417Air-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 by absorbing or adsorbing water, e.g. using an hygroscopic desiccant with liquid hygroscopic desiccants
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-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
    • F24F3/12Air-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
    • F24F3/14Air-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
    • F24F3/153Air-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 with subsequent heating, i.e. with the air, given the required humidity in the central station, passing a heating element to achieve the required temperature
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10Treatment, 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10Treatment, 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
    • F24F8/117Treatment, 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83Control 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
    • F24F11/84Control 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

Abstract

The invention discloses an air treatment device and method, wherein two cycles are carried out through the same solution, the organic combination of dehumidification, dust removal and reheating is realized, and sensible heat in air is treated through a surface air cooler, so that the system has the advantages of solution dehumidification, energy conservation and environmental protection, and meanwhile, the water inlet temperature of the surface air cooler can be increased, and the energy consumption of the system is reduced. The air treatment device comprises a box body, a first water baffle, a second water baffle, a dehumidification device, a dust removal device, a fin coil, a surface cooler, a rectifying plate, a fan and a connecting device arranged outside the box body; the first water baffle and the second water baffle are fixedly connected to the inner wall of the box body, and the first water baffle is close to the air input end of the box body; the dehumidifying device and the dust removing device are positioned between the first water baffle and the second water baffle; the finned coil, the surface cooler, the rectifying plate and the fan are sequentially arranged between the second water baffle and the air output end; the connecting device is respectively connected with the dehumidifying device, the dust removing device and the fin coil pipe to form a circulation loop.

Description

Air treatment device and method
Technical Field
The invention belongs to the technical field of air conditioning, and particularly relates to an air treatment device and method.
Background
The existing air treatment device mostly adopts a combined air-conditioning box, and the system sends chilled water of 7 ℃ into a surface cooler of the air-conditioning box, so that the air is cooled and dehumidified. However, this approach can result in the surface cooler being constantly in a wet condition. The surface cooler not only requires that the evaporating temperature of the water chilling unit is very low, but also the surface of the coil pipe is easy to breed bacteria, and the air quality is poor. In order to solve the above problems, a heat and humidity independent treatment mode is developed, which can separately treat the air humidity load and the sensible heat load, thereby greatly improving the dehumidification efficiency and the energy efficiency ratio of the system, and solution dehumidification is more widely paid attention as an effective mode of heat and humidity treatment.
Meanwhile, with the improvement of living standard and the change of working property of people, the time for people to stay indoors exceeds 80 percent. Therefore, the room must have a fresh, efficient and comfortable environment inside, and these changes have brought about a wide development space for the air-conditioning market and also have brought about serious challenges. The quality of air is very critical for industrial production and resident life, and the quality of air not only affects the quality of produced products, but also affects the health of people. Currently, particulate matter and pollutants in air are treated mainly by arranging air filters of different grades in a combined air conditioning cabinet. However, the adoption of the mode not only needs to additionally increase a set of device, but also causes energy waste because the air filter has larger resistance and often purifies air at the cost of sacrificing the energy consumption of the fan.
Disclosure of Invention
The invention provides an air treatment device and method, wherein two cycles are performed through the same solution, so that organic combination of dehumidification, dust removal and reheating is realized, sensible heat in air is treated through a surface air cooler, the system has the advantages of solution dehumidification, energy conservation and environmental protection, the water inlet temperature of the surface air cooler can be increased, the energy consumption of the system is reduced, the surface of the surface air cooler is kept clean, and bacteria breeding and air pollution are avoided.
In order to solve the technical problem, in one aspect, an embodiment of the present invention employs an air treatment device, which includes a box body, a first water baffle, a second water baffle, a dehumidification device, a dust removal device, a fin coil, a surface cooler, a rectification plate, a fan, and a connection device disposed outside the box body, where the first water baffle and the second water baffle are disposed inside the box body; one end of the box body is an air input end, and the other end of the box body is an air output end; the first water baffle and the second water baffle are fixedly connected to the inner wall of the box body, and the first water baffle is close to the air input end of the box body; the dehumidifying device and the dust removing device are positioned between the first water baffle and the second water baffle, and the dust removing device is closer to the air input end of the box body than the dehumidifying device; the finned coil, the surface cooler, the rectifying plate and the fan are sequentially arranged between the second water baffle and the air output end, and the fan is close to the air output end; the connecting device is respectively connected with the dehumidifying device, the dust removing device and the fin coil pipe to form a circulation loop.
As a preferred example, the dust collector includes a first solution distributor, the first solution distributor is fixedly connected to the upper portion of the inner cavity of the box body, the bottom surface of the box body is provided with a first solution output end, and the first solution output end is opposite to the first solution distributor.
As a preferred example, the dehumidifying device comprises a filler and a second solution distributor, the filler is fixedly connected in the inner cavity of the box body, the second solution distributor is fixedly connected to the upper part of the inner cavity of the box body, and the second solution distributor is positioned right above the filler; and a second solution output end is arranged on the bottom surface of the box body and is positioned right below the filler.
As a preferred example, the connecting device comprises a first electric valve, a second electric valve, a third electric valve, a fourth electric valve, a solution pump, a double-pipe heat exchanger and a gas-liquid separator; the input end of a third electric valve of the third electric valve is connected with the first solution output end, the output end of the third electric valve is connected with the solution pump input end of the solution pump through a first pipeline, the input end of a fourth electric valve of the fourth electric valve is connected with the second solution output end, and the output end of the fourth electric valve is connected with the first pipeline; the output end of a solution pump of the solution pump is connected with the input end of a gas-liquid separator of the gas-liquid separator through a second pipeline, a double-pipe heat exchanger is connected in the second pipeline, and an inner pipe of the double-pipe heat exchanger is communicated with the second pipeline; the upper part of the gas-liquid separator is provided with an opening, the output end of the gas-liquid separator is connected with the input end of the fin coil pipe through a third pipeline, the first output end of the fin coil pipe is connected with the input end of a first electric valve, and the output end of the first electric valve is connected with the input end of a first solution distributor; the second output end of the fin coil pipe is connected with the input end of a second electric valve of the second electric valve, and the output end of the second electric valve is connected with the input end of a second solution distributor of the second solution distributor.
Preferably, the connecting device further comprises a filter, the filter is connected in the first pipeline, and the filter output end of the filter is connected with the solution pump input end.
Preferably, the gas-liquid separator contains a solution, and the solution is calcium chloride, lithium chloride or lithium bromide.
As a preferred example, the surface cooler is provided with a surface cooler input end and a surface cooler output end, and the surface cooler input end and the surface cooler output end are connected with a water chilling unit or a water tank.
In another aspect, an embodiment of the present invention further provides an air processing method, where the method includes: starting a fan, inputting dust-containing air into the box body through an air input end, enabling the dust-containing air to enter a dust removal section through a first water baffle plate, adsorbing particulate matters and pollutants in the air by using a solution sprayed by a first solution distributor, performing primary dehumidification, then sending the air into a dehumidification section, enabling the solution sprayed by a second solution distributor to flow through a filler, and realizing secondary dehumidification when the air is contacted with the solution on the surface of the filler; the air after dust removal and dehumidification is discharged out of the dehumidification section through a second water baffle, the air is reheated by using a fin coil pipe to form high-temperature air, the high-temperature air is cooled by using a surface air cooler, then the high-temperature air is rectified by a rectifying plate, and finally the air after treatment is sent out from an air output end by a fan;
the liquid sprayed out from the first solution distributor and the second solution distributor is collected by the connecting device, and meanwhile, the connecting device is connected with the fin coil pipe to form the cyclic utilization of the solution.
As a preferred example, the liquid sprayed from the first solution distributor and the second solution distributor is collected by the connecting device, and meanwhile, the connecting device is connected with the fin coil to form the recycling of the solution, which specifically comprises:
after passing through a first solution distributor, the solution flowing out of the first output end of the finned coil pipe flows out of the first solution output end, sequentially passes through a third electric valve, a filter and a solution pump, and enters the first input end of the double-pipe heat exchanger;
after passing through a second solution distributor, the solution flowing out of the second output end of the finned coil flows out of the second solution output end, sequentially passes through a fourth electric valve, a filter and a solution pump, and enters the first input end of the double-pipe heat exchanger;
the solution flowing out of the first solution output end and the solution flowing out of the second solution output end exchange heat with high-temperature liquid flowing in the second input end of the double-pipe heat exchanger in the double-pipe heat exchanger to realize the regeneration process of the solution, the temperature of the solution after heat exchange is increased, the solution flows into the gas-liquid separator through the first output end of the double-pipe heat exchanger, and gas generated in the temperature increasing process is discharged through an opening on the upper part of the gas-liquid separator; high-temperature liquid flowing in from the second input end of the double-pipe heat exchanger exchanges heat and then flows out from the second output end of the double-pipe heat exchanger;
the heated solution flows out of the output end of the gas-liquid separator, enters the finned coil pipe through the input end of the finned coil pipe, exchanges heat with air flowing through the box body, and the temperature of the solution is reduced; the cooled solution enters a first solution distributor through a first output end of the fin coil and the first electric valve, and enters a second solution distributor through a second output end of the fin coil and the second electric valve;
and circulating the steps until the end.
As a preferred example, the surface cooler is provided with a surface cooler input end and a surface cooler output end, the surface cooler input end is connected with the output end of the water chilling unit, and the surface cooler output end is connected with the input end of the water chilling unit; or the input end of the surface cooler is connected with the output end of the water tank, and the output end of the surface cooler is connected with the input end of the water tank.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
(1) the embodiment of the invention realizes the organic combination of three functions of dehumidification, dust removal and reheating by performing two cycles on the same solution, so that the system has the functions of solution dust removal, dehumidification and reheating, and has the advantages of energy conservation and environmental protection. In the embodiment of the invention, the dehumidification device and the dust removal device are arranged to realize the dust removal and the dehumidification of the air. Meanwhile, by arranging the connecting device, the purpose of energy conservation and environmental protection is achieved by utilizing the same solution and recycling the solution in the dehumidifying device, the dust removing device and the fin coil. Meanwhile, the embodiment of the invention adsorbs the particles and pollutants in the air through the solution without additionally installing an air filtering device, thereby realizing the integration of dehumidification and dust removal equipment and reducing the equipment investment cost. In addition, the embodiment of the invention heats the air by using the heat generated after the solution regeneration, realizes the heat recovery and utilization of the system, does not need additional heat to reheat the air, and reduces the energy consumption of the system.
(2) According to the embodiment of the invention, the solution is used as a medium for dust removal, and an air filtering device is not required to be installed, so that the system resistance can be reduced. Therefore, the pressure head of the fan for providing power for air delivery is reduced, the efficiency of the fan is improved, and the energy consumption of the system is reduced.
(3) The invention can improve the temperature of the chilled water of the water chilling unit and further reduce the energy consumption of the system. Meanwhile, after the temperature of cold water of the surface cooler is increased, the sanitary condition of the surface cooler can be improved, the bacterial growth on the surface of the surface cooler is reduced, and the cleanness of air is ensured. Typical chilled water temperature is 7oC. The temperature of the chilled water used in the invention can reach 12 DEG CoAnd C is higher than the C. Conventional air conditioning systems require a chiller supply 7oThe refrigeration water of C, the cold energy produced by it is partly used to remove the latent heat load of air (i.e. dehumidification), and partly used to remove the sensible heat load of air (i.e. cooling). In this system, the latent heat load of the air is borne by the solution dehumidifier. So that the chiller only needs to bear sensible heat load. Therefore, this embodiment does not require as low a water temperature. In the usual case, 12oThe sensible heat removal requirement can be met by C or higher water temperature. The solution dehumidification process only has solution pumps as energy consumption equipment, and the energy consumption of the process is much smaller than that of a water chilling unit. Therefore, the embodiment obviously reduces the energy consumption of the system.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
The figure shows that: an air input 1, an air output 2, a finned coil first output 3, a finned coil second output 4, a first solution distributor input 5, a second solution distributor input 6, a first solution output 7, a second solution output 8, a filter first input 9, a filter second input 10, a double pipe heat exchanger first input 11, a double pipe heat exchanger first output 12, a gas liquid separator input 13, a gas liquid separator output 14, a finned coil input 15, a double pipe heat exchanger second input 16, a double pipe heat exchanger second output 17, a first water baffle 18, a filler 19, a second water baffle 20, a finned coil 21, a first solution distributor 22, a second solution distributor 23, a filter 24, a box 25, a double pipe heat exchanger 26, a gas liquid separator 27, a solution 28, an opening 29, a first electric valve 30, a first input electric valve 31, a first electrically operated valve output 32, a second electrically operated valve 33, a second electrically operated valve input 34, a second electrically operated valve output 35, a third electrically operated valve 36, a third electrically operated valve input 37, a third electrically operated valve output 38, a fourth electrically operated valve 39, a fourth electrically operated valve input 40, a fourth electrically operated valve output 41, a filter output 42, a solution pump 43, a solution pump input 44, a solution pump output 45, a surface cooler 46, a rectifier plate 47, a fan 48, a surface cooler input 49, and a surface cooler output 50.
Detailed Description
Technical solutions of embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, an air treatment device according to an embodiment of the present invention includes a box 25, a first water baffle 18, a second water baffle 20, a dehumidifying device, a dust removing device, a finned coil 21, a surface cooler 46, a rectifying plate 47, a fan 48, and a connecting device disposed outside the box 25; one end of the box body 25 is an air input end 1, and the other end is an air output end 2; the first water baffle 18 and the second water baffle 20 are fixedly connected to the inner wall of the box body 25, and the first water baffle 18 is close to the air input end 1 of the box body 25; the dehumidifying device and the dust removing device are positioned between the first water baffle 18 and the second water baffle 20, and the dust removing device is closer to the air input end 1 of the box body 25 than the dehumidifying device; the finned coil 21, the surface cooler 46, the rectifying plate 47 and the fan 48 are sequentially arranged between the second water baffle 20 and the air output end 2, and the fan 48 is close to the air output end 2; the connecting device is respectively connected with the dehumidifying device, the dust removing device and the fin coil 21 to form a circulation loop.
The air treatment device of the embodiment utilizes one set of device to realize three functions of air dehumidification, dust removal and reheating. Firstly, the air is subjected to dust removal treatment, and dust in the air is removed through a dust removal device. And then dehumidifying the dedusted air by a dehumidifying device. In the dust removal process, the dust removal device also realizes preliminary dehumidification of air. The dehumidified air is passed through the fin coil 21 to be reheated. Because the solution is adopted for dedusting and dehumidifying in the embodiment, the first water baffle 18 and the second water baffle 20 inside the box 25 prevent the solution from flowing out of the dedusting section and the dehumidifying section in the dedusting and dehumidifying process to influence other processing processes. The connecting device that this embodiment set up realizes that solution circulates in dehydrating unit, dust collector and fin coil 21, utilizes the dehumidification, the dust removal and the reheat of same kind of solution realization air to the energy saving, reduce cost.
As a preferred example, the dust removing device includes a first solution distributor 22, the first solution distributor 22 is fixedly connected to the upper portion of the inner cavity of the box 25, a first solution output end 7 is arranged on the bottom surface of the box 25, and the first solution output end 7 is opposite to the first solution distributor 22. The air is dedusted using the first solution distributor 22. The solution is sprayed downward through the first solution distributor 22, comes into contact with the flowing air, and thus adsorbs dust in the air, and flows downward. The dust-adsorbing solution flows out of the first solution outlet 7. This avoids the solution accumulating in the tank 25. The first solution distributor 22 may be square or disc shaped. The first solution distributor 22 is provided with evenly distributed small holes.
As a preferred example, the dehumidifying device includes a filler 19 and a second solution distributor 23, the filler 19 is fixedly connected in the inner cavity of the box body 25, the second solution distributor 23 is fixedly connected to the upper part of the inner cavity of the box body 25, and the second solution distributor 23 is located right above the filler 19; and a second solution output end 8 is arranged on the bottom surface of the box body 25, and the second solution output end 8 is positioned right below the filler 19. The second solution distributor 23 may be square or disc shaped. The second solution distributor 23 is provided with evenly distributed small holes. The solution flows into the packing 19 through the second solution distributor 23. After entering the filler 19, the air contacts with the solution on the surface of the filler 19, and the solution adsorbs water molecules in the air for dehumidification. The dehumidified air flows out of the packing 19. The solution before dehumidification is a concentrated solution, and after air dehumidification, the concentrated solution becomes a dilute solution. The dilute solution flows out from the second solution output end 8.
Preferably, the connecting device comprises a first electric valve 30, a second electric valve 33, a third electric valve 36, a fourth electric valve 39, a solution pump 43, a double-pipe heat exchanger 26 and a gas-liquid separator 27; the third electric valve input end 37 of the third electric valve 36 is connected with the first solution output end 7, the third electric valve output end 38 is connected with the solution pump input end 44 of the solution pump 43 through a first pipeline, the fourth electric valve input end 40 of the fourth electric valve 39 is connected with the second solution output end 8, and the fourth electric valve output end 41 of the fourth electric valve 39 is connected with the first pipeline; a solution pump output end 45 of the solution pump 43 is connected with the gas-liquid separator input end 13 of the gas-liquid separator 27 through a second pipeline, the double-pipe heat exchanger 26 is connected in the second pipeline, and the inner pipe of the double-pipe heat exchanger 26 is communicated with the second pipeline; the upper part of the gas-liquid separator 27 is provided with an opening 29, the gas-liquid separator output end 14 of the gas-liquid separator 27 is connected with the fin coil input end 15 through a third pipeline, the first output end 3 of the fin coil is connected with the first electric valve input end 31 of the first electric valve 30, and the first electric valve output end 32 of the first electric valve 30 is connected with the first solution distributor input end 5 of the first solution distributor 22; the finned coil second output 4 is connected to the second electrically operated valve input 34 of the second electrically operated valve 33, and the second electrically operated valve output 35 of the second electrically operated valve 33 is connected to the second solution distributor input 6 of the second solution distributor 23. A solution 28 contained in the gas-liquid separator 27. By adjusting the charge of solution 28 in gas-liquid separator 27, the system solution demand can be guaranteed. Preferably, the solution 28 is calcium chloride, lithium chloride or lithium bromide. The solution pump 43 is one of a fixed frequency and a variable frequency.
Through setting up connecting device, realized the circulation flow of solution in dust collector, dehydrating unit and fin coil 21 to the energy has been practiced thrift greatly. The solutions flowing out of the first solution output 7 and the second solution output 8 are pumped into the double pipe heat exchanger 26 by the solution pump 43. In the double pipe heat exchanger 26, the solution exchanges heat with the high temperature liquid flowing through the double pipe heat exchanger 26, so that the solution evaporates a part of the gas and raises the temperature. The solution changes from a dilute solution to a concentrated solution. The heated solution enters the gas-liquid separator 27, and part of the evaporated gas is discharged through the opening 29 of the gas-liquid separator 27. The solution enters the finned coil 21 through a third conduit. The solution flowing into the finned coil 21 is a concentrated solution at high temperature. The air in the box 25 exchanges heat with the high temperature concentrated solution in the finned coil 21 as it flows through the finned coil 21. Air temperature rise and concentrated solution temperature reduction. The warmed air flows to the surface air cooler 46. The concentrated solution after temperature reduction flows to the first electric valve 30 and the second electric valve 33. The concentrated solution flows into the first and second solution distributors 22 and 23 through the first and second electric valves 30 and 33, and the solution flowing out of the first and second solution distributors 22 and 23 flows out of the first and second solution output ends 7 and 8. Thus realizing the recycling of the solution and greatly saving energy. In the process, the fin coil 21 is arranged, so that the air after dehumidification and dust removal is reheated. Meanwhile, the air is heated by the heat of the solution by only adding the fin coil 21 in the process, so that the energy is effectively saved.
The amount of solution dispensed in the first and second solution distributors 22, 23 can be achieved by providing a first and a second electric valve 30, 33. When the air moisture content is large, the opening degree of the second electric valve 33 is increased, so that more solution flows into the second solution distributor 23. When the air contains a large amount of dust, the opening of the first electric valve 30 is increased so that more solution flows into the first solution distributor 22. By automatically setting the first and second electrically operated valves 30, 33 to different degrees of opening, the ratio of dehumidification to de-dusting liquids can be adjusted. Similarly, the flow rate of the return liquid and the regeneration rate can be adjusted by setting the third motor-operated valve 36 and the fourth motor-operated valve 39 to different opening degrees.
Preferably, the connection device further comprises a filter 24, the filter 24 is connected in the first pipe, and a filter output end 42 of the filter 24 is connected with a solution pump input end 44. Since the solution output from the first solution output terminal 7 contains dust, a filter 24 is provided for filtering the dust in the solution. Similarly, the solution output from the second solution output terminal 8 may contain a small amount of dust, and the dust in the solution is filtered by the filter 24. Therefore, when the solution is recycled for dehumidification and dust removal, the solution keeps clean and does not contain dust. The fourth electro valve output 41 is provided as the first input port 9 of the filter 24. The third electrically operated valve output 38 serves as the second input port 10 of the filter 24.
Preferably, the surface cooler 46 has a surface cooler input 49 and a surface cooler output 50, and the surface cooler input 49 and the surface cooler output 50 are connected to a water chiller or a water tank.
The method for treating the air by using the air treatment device of the embodiment comprises the following steps: starting a fan 48, inputting dust-containing air into the box body 25 through the air input end 1, enabling the dust-containing air to enter a dust removal section through the first water baffle 18, adsorbing particulate matters and pollutants in the air by using a solution sprayed by the first solution distributor 22, performing primary dehumidification, then sending the air into a dehumidification section, enabling the solution sprayed by the second solution distributor 23 to flow through the filler 19, and realizing secondary dehumidification when the air is contacted with the solution on the surface of the filler 19; the air after dust removal and dehumidification is discharged out of the dehumidification section through a second water baffle 20, the air is subjected to reheating treatment by using a fin coil 21 to form high-temperature air, the high-temperature air is cooled by using a surface air cooler 46, then the high-temperature air is rectified by a rectifying plate 47, and finally the treated air is sent out from an air output end 2 by a fan 48;
the liquid sprayed from the first solution distributor 22 and the second solution distributor 23 is collected by the connecting device, and meanwhile, the connecting device is connected with the finned coil 21, so that the recycling of the solution is realized.
In the above method, the liquid sprayed from the first solution distributor 22 and the second solution distributor 23 is collected by the connection device, and meanwhile, the connection device is connected with the finned coil 21 to form the recycling of the solution, which specifically includes:
after passing through the first solution distributor 22, the solution flowing out of the first output end 3 of the finned coil flows out of the first solution output end 7, sequentially passes through the third electric valve 36, the filter 24 and the solution pump 43, and enters the first input end 11 of the double-pipe heat exchanger;
after passing through the second solution distributor 23, the solution flowing out of the second output end 4 of the finned coil flows out of the second solution output end 8, sequentially passes through the fourth electric valve 39, the filter 24 and the solution pump 43, and enters the first input end 11 of the double-pipe heat exchanger;
the solution flowing out of the first solution output end 7 and the solution flowing out of the second solution output end 8 exchange heat with high-temperature liquid flowing in from the second input end 16 of the double-pipe heat exchanger in the double-pipe heat exchanger 26 to realize the regeneration process of the solution, the temperature of the solution after heat exchange is increased, the solution flows into the gas-liquid separator 27 through the first output end 12 of the double-pipe heat exchanger, and gas generated in the temperature increasing process is discharged through an opening 29 in the upper part of the gas-liquid separator 27; the high-temperature liquid flowing in from the second input end 16 of the double-pipe heat exchanger exchanges heat and then flows out from the second output end 17 of the double-pipe heat exchanger;
the heated solution flows out from the output end 14 of the gas-liquid separator, enters the finned coil 21 through the input end 15 of the finned coil, and exchanges heat with air flowing through the box body 25, so that the temperature of the solution is reduced; the cooled solution enters the first solution distributor 22 through the first output end 3 of the fin coil and the first electric valve 30, and enters the second solution distributor 23 through the second output end 4 of the fin coil and the second electric valve 33;
and circulating the steps until the end.
In the method, the surface cooler 46 is provided with a surface cooler input end 49 and a surface cooler output end 50, the surface cooler input end 49 is connected with the output end of the water chilling unit, and the surface cooler output end 50 is connected with the input end of the water chilling unit; or the input end 49 of the surface cooler is connected with the output end of the water tank, and the output end 50 of the surface cooler is connected with the input end of the water tank.
According to the method of the embodiment, the solution dust removal device replaces an air filtering device, so that the resistance of the system is reduced, and the energy consumption of the air conveying system is further reduced. In addition, the double-pipe heat exchanger is adopted to replace a traditional electric heater to regenerate the solution, on one hand, the double-pipe heat exchanger can be combined with a fin heat exchanger to realize heat recycling and reheat air, so that energy is saved, and on the other hand, low-grade energy or a heat pump can be combined with the double-pipe heat exchanger to improve the energy utilization efficiency. This embodiment utilizes same kind of solution, realizes dehumidification, three kinds of functions of dust removal and reheat, and the system need not set up air filter alone, not only can simplify the design and the course of working of equipment, can also reduce equipment cost.
In this embodiment, the solution dehumidification has better dehumidification effect, integrates dehumidification process and dust removal process, not only can make the system have the advantage of solution dehumidification, also can save air filter. Therefore, the equipment can be simplified, the initial investment cost of the system can be reduced, the resistance of the system can be reduced, and the energy consumption of the system can be further reduced.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. An air treatment device is characterized by comprising a box body (25), a first water baffle (18) and a second water baffle (20) which are arranged inside the box body (25), a dehumidifying device, a dust removing device, a fin coil (21), a surface air cooler (46), a rectifying plate (47) and a fan (48), and a connecting device arranged outside the box body (25); one end of the box body (25) is an air input end (1), and the other end is an air output end (2); the first water baffle (18) and the second water baffle (20) are fixedly connected to the inner wall of the box body (25), and the first water baffle (18) is close to the air input end (1) of the box body (25); the dehumidifying device and the dust removing device are positioned between the first water baffle (18) and the second water baffle (20), and the dust removing device is closer to the air input end (1) of the box body (25) than the dehumidifying device; the finned coil (21), the surface cooler (46), the rectifying plate (47) and the fan (48) are sequentially arranged between the second water baffle (20) and the air output end (2), and the fan (48) is close to the air output end (2); the connecting device is respectively connected with the dehumidifying device, the dust removing device and the fin coil (21) to form a circulation loop;
the dust removal device comprises a first solution distributor (22), the first solution distributor (22) is fixedly connected to the upper part of an inner cavity of the box body (25), a first solution output end (7) is arranged on the bottom surface of the box body (25), and the first solution output end (7) is opposite to the first solution distributor (22);
the dehumidification device comprises a filler (19) and a second solution distributor (23), the filler (19) is fixedly connected in an inner cavity of the box body (25), the second solution distributor (23) is fixedly connected to the upper part of the inner cavity of the box body (25), and the second solution distributor (23) is positioned right above the filler (19); a second solution output end (8) is arranged on the bottom surface of the box body (25), and the second solution output end (8) is positioned right below the filler (19);
the connecting device comprises a first electric valve (30), a second electric valve (33), a third electric valve (36), a fourth electric valve (39), a solution pump (43), a double-pipe heat exchanger (26) and a gas-liquid separator (27); wherein the content of the first and second substances,
a third electric valve input end (37) of the third electric valve (36) is connected with the first solution output end (7), a third electric valve output end (38) is connected with a solution pump input end (44) of a solution pump (43) through a first pipeline, a fourth electric valve input end (40) of the fourth electric valve (39) is connected with the second solution output end (8), and a fourth electric valve output end (41) of the fourth electric valve (39) is connected with the first pipeline; a solution pump output end (45) of the solution pump (43) is connected with a gas-liquid separator input end (13) of the gas-liquid separator (27) through a second pipeline, a double-pipe heat exchanger (26) is connected in the second pipeline, and an inner pipe of the double-pipe heat exchanger (26) is communicated with the second pipeline; the upper part of the gas-liquid separator (27) is provided with an opening (29), the output end (14) of the gas-liquid separator (27) is connected with the input end (15) of the fin coil pipe through a third pipeline, the first output end (3) of the fin coil pipe is connected with the first electric valve input end (31) of the first electric valve (30), and the first electric valve output end (32) of the first electric valve (30) is connected with the first solution distributor input end (5) of the first solution distributor (22); the second output end (4) of the fin coil is connected with the second electric valve input end (34) of the second electric valve (33), and the second electric valve output end (35) of the second electric valve (33) is connected with the second solution distributor input end (6) of the second solution distributor (23).
2. An air treatment unit as claimed in claim 1, characterized in that the connection means further comprise a filter (24), the filter (24) being connected in the first conduit, the filter output (42) of the filter (24) being connected to the solution pump input (44).
3. An air treatment unit as defined in claim 1 or 2, wherein said gas-liquid separator (27) contains a solution (28), said solution (28) being calcium chloride, lithium chloride or lithium bromide.
4. An air treatment unit as claimed in claim 1, characterized in that the surface cooler (46) is provided with a surface cooler input (49) and a surface cooler output (50), the surface cooler input (49) and the surface cooler output (50) being connected to a water chiller or a water tank.
5. A method of treating air, the method comprising: starting a fan (48), inputting dust-containing air into a box body (25) through an air input end (1), entering a dust removal section through a first water baffle (18), adsorbing particulate matters and pollutants in the air by using a solution sprayed by a first solution distributor (22), performing primary dehumidification, then sending the air into a dehumidification section, enabling the solution sprayed by a second solution distributor (23) to flow through a filler (19), and realizing secondary dehumidification when the air is contacted with the solution on the surface of the filler (19); the air after dust removal and dehumidification is discharged out of the dehumidification section through a second water baffle (20), the air is reheated by using a fin coil (21) to form high-temperature air, the high-temperature air is cooled by using a surface air cooler (46), then the high-temperature air is rectified by a rectifying plate (47), and finally the processed air is sent out from an air output end (2) by a fan (48);
the liquid sprayed from the first solution distributor (22) and the second solution distributor (23) is collected by the connecting device, and meanwhile, the connecting device is connected with the fin coil (21) to form the recycling of the solution.
6. An air treatment method according to claim 5, characterized in that the liquid sprayed from the first solution distributor (22) and the second solution distributor (23) is collected by the connection means, and the connection means is connected with the finned coil (21) to form a solution circulation, specifically comprising:
after passing through a first solution distributor (22), the solution flowing out of the first output end (3) of the finned coil flows out of a first solution output end (7), sequentially passes through a third electric valve (36), a filter (24) and a solution pump (43), and enters a first input end (11) of the double-pipe heat exchanger;
the solution flowing out of the second output end (4) of the finned coil passes through a second solution distributor (23), then flows out of a second solution output end (8), sequentially passes through a fourth electric valve (39), a filter (24) and a solution pump (43), and enters a first input end (11) of the double-pipe heat exchanger;
the solution flowing out from the first solution output end (7) and the solution flowing out from the second solution output end (8) exchange heat with high-temperature liquid flowing in from the second input end (16) of the double-pipe heat exchanger in the double-pipe heat exchanger (26) to realize the regeneration process of the solution, the temperature of the solution after heat exchange is increased, the solution flows into a gas-liquid separator (27) through the first output end (12) of the double-pipe heat exchanger, and gas generated in the temperature increasing process is discharged through an opening hole (29) in the upper part of the gas-liquid separator (27); high-temperature liquid flowing in from a second input end (16) of the double-pipe heat exchanger exchanges heat and then flows out from a second output end (17) of the double-pipe heat exchanger;
the heated solution flows out of the output end (14) of the gas-liquid separator, enters the finned coil (21) through the input end (15) of the finned coil, and exchanges heat with air flowing through the box body (25), so that the temperature of the solution is reduced; the cooled solution enters a first solution distributor (22) through a first output end (3) of the fin coil and a first electric valve (30), and enters a second solution distributor (23) through a second output end (4) of the fin coil and a second electric valve (33);
and circulating the steps until the end.
7. An air treatment method as claimed in claim 5 or 6, characterized in that the surface cooler (46) is provided with a surface cooler input (49) and a surface cooler output (50), the surface cooler input (49) being connected to the output of the chiller, the surface cooler output (50) being connected to the input of the chiller; or the input end (49) of the surface cooler is connected with the output end of the water tank, and the output end (50) of the surface cooler is connected with the input end of the water tank.
CN201610630300.7A 2016-08-03 2016-08-03 Air treatment device and method Active CN106091133B (en)

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CN110686337B (en) * 2019-10-31 2021-01-15 安徽嘉乐斯乐净化工程有限公司 Dust removing device for air purifier
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