CN108317615B - Air treatment method and device - Google Patents
Air treatment method and device Download PDFInfo
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- CN108317615B CN108317615B CN201810361785.3A CN201810361785A CN108317615B CN 108317615 B CN108317615 B CN 108317615B CN 201810361785 A CN201810361785 A CN 201810361785A CN 108317615 B CN108317615 B CN 108317615B
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000012528 membrane Substances 0.000 claims abstract description 179
- 238000010438 heat treatment Methods 0.000 claims abstract description 88
- 239000004065 semiconductor Substances 0.000 claims description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 238000007791 dehumidification Methods 0.000 claims description 28
- 239000007788 liquid Substances 0.000 claims description 12
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 9
- 239000012510 hollow fiber Substances 0.000 description 11
- 230000008929 regeneration Effects 0.000 description 8
- 238000011069 regeneration method Methods 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 238000009835 boiling Methods 0.000 description 5
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- 238000005485 electric heating Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/147—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification with both heat and humidity transfer between supplied and exhausted air
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Drying Of Gases (AREA)
Abstract
The application discloses an air treatment method and device. Wherein, the device includes that air treatment device includes first membrane solution subassembly, second membrane solution subassembly, condenser and heating portion, and first membrane solution subassembly, second membrane solution subassembly, condenser and heating portion pass through the closed passageway and connect, wherein: a first membrane solution module for treating air passing through the first membrane solution module with a solution passing through the first membrane solution module; a second membrane solution assembly positioned in the closed path lower than the first membrane solution assembly; the heating part is connected between the bottom end of the first membrane solution component and the bottom end of the second membrane solution component; and the condenser is connected between the top end of the first membrane solution assembly and the top end of the second membrane solution assembly and is used for condensing the prefilled solution in the closed passage. The application solves the technical problems of complex solution dehumidifying system and high energy consumption.
Description
Technical Field
The application relates to the field of electric appliances, in particular to an air treatment method and device.
Background
Among the currently known air humidity control methods are condensation dehumidification, solid adsorption dehumidification, electrochemical dehumidification, solution absorption dehumidification, membrane dehumidification and the like, and the solution dehumidification system is favored in the case of high humidity load because the solution dehumidification system can utilize low-grade energy sources to regenerate the solution, has high dehumidification efficiency, does not condense liquid water, and can store a large amount of energy sources such as electric energy and the like in a concentrated solution in a chemical energy manner with high efficiency and low loss.
Common solution dehumidification systems occupy a large space, require one or more solution pumps to provide power for circulation between the concentrated solution and the dilute solution to maintain the hygroscopic and solution regeneration process, and are relatively large in pump energy consumption and noise.
In view of the above problems, no effective solution has been proposed at present.
Disclosure of Invention
The embodiment of the application provides an air treatment method and device, which at least solve the technical problems of complex solution dehumidifying system and high energy consumption.
According to an aspect of an embodiment of the present application, there is provided an air treatment apparatus including a first membrane solution assembly, a second membrane solution assembly, a condenser, and a heating part, the first membrane solution assembly, the second membrane solution assembly, the condenser, and the heating part being connected by a closed path, wherein: the first membrane solution assembly is used for treating air passing through the first membrane solution assembly by utilizing the solution flowing through the first membrane solution assembly; the second membrane solution assembly is positioned in the closed passage lower than the first membrane solution assembly, and is used for treating air passing through the second membrane solution assembly by using the solution flowing through the second membrane solution assembly; the heating part is connected between the bottom end of the first membrane solution component and the bottom end of the second membrane solution component and is used for heating the solution pre-filled in the closed passage; the condenser is connected between the top end of the first membrane solution assembly and the top end of the second membrane solution assembly and is used for condensing the pre-filled solution in the closed passage.
Optionally, the heating part includes: the top end of the first heating component is connected with the bottom end of the first film solution component; the top end of the second heating component is connected with the bottom end of the second film solution component, and the bottom end of the first heating component is connected with the bottom end of the second heating component.
Optionally, the first heating component and the second heating component are any one of the following heating components: semiconductor thermopiles, solar energy, heat pumps and electric heaters.
Optionally, the position of the heating portion in the passage is lower than the position of the condenser in the passage.
Optionally, the air treatment device further comprises:
and the total heat exchanger is connected with the first membrane solution assembly and the second membrane solution assembly and is used for supplying air to the first membrane solution assembly and the second membrane solution assembly.
Optionally, the air treatment device further comprises:
the liquid storage tank is connected to the bottom of the heating part and used for storing solution, increasing the system volume and improving the operation stability.
Optionally, the height of the solution in the closed path is at least higher than the height of the heating portion in the closed path.
Optionally, the connection point of the liquid storage tank and the closed passage is the lowest point of the air treatment device.
Optionally, the closed path is in a vacuum state.
According to another aspect of the embodiment of the present application, there is also provided an air treatment method including: in a humidifying operation state, absorbing water in the air by the solution in the first membrane solution assembly to obtain a dilute solution, and releasing the water in the dilute solution by the second membrane solution assembly; and in a dehumidification operation state, removing water in the solution in the first membrane solution assembly to obtain a concentrated solution, and absorbing water in the air by using the concentrated solution in the second membrane solution assembly.
Optionally, in the humidifying operation state, absorbing moisture in the air by the solution in the first membrane solution assembly to obtain a diluted solution, and releasing the moisture in the diluted solution by the second membrane solution assembly includes: under the humidifying operation state, the heating part is controlled to heat the first solution in the closed pipeline to obtain a two-phase solution; releasing the water in the two-phase solution in the second membrane solution assembly to obtain a second solution; condensing the first solution in a condenser to obtain a third solution, wherein the concentration of the third solution is higher than that of the first solution; and the third solution absorbs moisture in the air in the first membrane solution assembly to obtain the first solution.
Optionally, in the dehumidification operation state, removing the moisture in the solution in the first membrane solution assembly to obtain a concentrated solution, and absorbing the moisture in the air in the second membrane solution assembly by using the concentrated solution includes: in the dehumidification operation state, the heating part is controlled to heat the fourth solution in the closed pipeline to obtain a two-phase solution; releasing the moisture in the two-phase solution in the first membrane solution assembly to obtain a fifth solution; condensing the fifth solution in a condenser to obtain a sixth solution, wherein the concentration of the sixth solution is higher than that of the fourth solution; and releasing moisture from the sixth solution in the second membrane solution assembly to obtain the fourth solution.
The solution in the closed passage is heated by the heating part, so that the solution becomes a two-phase solution mixed with gas and liquid, and the pressure difference in the closed passage enables the two-phase solution to flow into the first membrane solution assembly or the second membrane solution assembly for humidification or dehumidification treatment (whether the two-phase solution flows into the first membrane solution assembly or the second membrane solution assembly depends on whether the current humidification mode or the dehumidification mode is operated). In the process, the solution in the passage can flow into different membrane solution components to absorb water or release water through the pressure difference in the closed passage, and the flow of the solution is pushed by a pump, so that the system structure is simplified, the technical problems of complex solution dehumidification system and high energy consumption in the prior art are solved, the technical effects of simplifying the system structure and solving the energy consumption of the system are achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic view of an air treatment device in a dehumidified state according to an embodiment of the present application;
FIG. 2 is a schematic view of an air treatment device in a humidified state according to an embodiment of the present application;
fig. 3 is a flow chart of an air treatment method according to an embodiment of the present application.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
According to an embodiment of the present application, an embodiment of an air treatment device is provided. Fig. 1 is a schematic view of an air treatment device in a dehumidified state according to an embodiment of the present application. Fig. 2 is a schematic view of an air treatment device in a humidified state according to an embodiment of the present application. The structure of fig. 1 and 2 is the same, except that the solution flow direction of the closed path is different from the air flow direction of the air path.
The air treatment device comprises a closed solution circulation passage and two air passages, wherein fresh air and return air enter different membrane solution contactors for dehumidification or humidification after heat and humidity recovery through a total heat exchanger. The solution circulation path includes two membrane solution modules (including a first membrane solution module 101 and a second membrane solution module 102 as shown in fig. 1 and 2), a semiconductor thermopile, an electric heater, a condenser 105, a liquid storage tank 106, and connection paths and valves. The upper part of the first membrane solution assembly 101 is connected with the top of the condenser 105 through a passage, the lower part of the condenser 105 is provided with a filter, the filter is connected with the upper part of the second membrane solution assembly 102 through a passage, the lower part of the second membrane solution assembly 102 is provided with a filter 108, the filter 108 is connected with the lower part of the first membrane solution assembly 101 through a concave passage, a section of the concave passage close to the second membrane solution assembly 102 is contacted with the surface of the electric heater, a section of the concave passage close to the first membrane solution assembly 101 passes through a fin on the left side of a semiconductor thermopile, the right side of the semiconductor thermopile is contacted with the outer wall of the second membrane solution assembly 102, a three-way valve is arranged at the horizontal section of the concave passage between the two membrane solution assemblies and is respectively connected with the first membrane solution assembly 101, the second membrane solution assembly 102 and the liquid storage tank 106, and the liquid storage tank 106 is arranged at the outer side of the system and has a height not lower than the top of the second membrane solution assembly 102 so as to increase the system volume and improve the running stability. The present embodiment does not limit the placement direction of the via
That is, the air treatment device includes a first membrane solution module 101, a second membrane solution module 102, a condenser 105, and a heating part (including a semiconductor thermopile and an electric heater), the first membrane solution module 101, the second membrane solution module 102, the condenser 105, and the heating part being connected by a closed path, wherein:
a first membrane solution module 101 for treating air passing through the first membrane solution module with a solution passing through the first membrane solution module;
a second membrane solution module 102 for treating air passing through the second membrane solution module with a solution passing through the second membrane solution module;
the heating part is connected between the bottom end of the first membrane solution component and the bottom end of the second membrane solution component and is used for heating the pre-filled solution in the closed passage;
and a condenser 105 connected between the top end of the first membrane solution module and the top end of the second membrane solution module for condensing the pre-filled solution in the closed path.
In this embodiment, the solution in the closed path is heated by the heating portion to become a two-phase solution in which gas and liquid are mixed, and the pressure in the closed path causes the two-phase solution to flow into the first membrane solution module or the second membrane solution module for humidification or dehumidification (whether the two-phase solution flows into the first membrane solution module or the second membrane solution module depends on whether the current humidification mode operation or the dehumidification mode operation). In the process, the solution in the passage can flow into different membrane solution components to absorb water or release water through the pressure difference in the closed passage, and the flow of the solution is pushed by a pump, so that the system structure is simplified, the technical problems of complex solution dehumidification system and high energy consumption in the prior art are solved, the technical effects of simplifying the system structure and solving the energy consumption of the system are achieved.
Optionally, the position of the heating portion in the passage is lower than the position of the condenser in the passage. The heating part includes: the top end of the first heating component is communicated with the bottom end of the first membrane solution component; the top end of the second heating component is communicated with the bottom end of the second film solution component, and the bottom end of the first heating component is communicated with the bottom end of the second heating component.
The heating part may be one heating assembly, or may include both the first heating assembly and the second heating assembly. In the case where the heating section is a heating element, the heating element may be provided at the position of the first heating element 104 shown in fig. 1 and 2, to heat the solution in the pipe connected to the lower portion of the first membrane solution element when it is dehumidified, and to heat the solution in the pipe at the position of the second membrane solution element when it is humidified.
In the case where the heating part includes the first heating element and the second heating element, one of the two heating elements may be controlled to be turned on and the other to be turned off in the humidified state and the dehumidified state.
The first heating component and the second heating component are any one of the following heating components: semiconductor thermopiles, solar energy, heat pumps and electric heaters. Since the boiling point of the solution used in this embodiment is relatively low, between 40-50 ℃, the boiling point can be reached without much heat, and therefore, semiconductor thermopiles, solar energy, heat pumps, and electric heaters can be used to heat the solution.
Optionally, the first heating component 104 is a semiconductor thermopile, a section of the closed path near the bottom end of the first membrane solution component 101 passes through a fin on the left side of the semiconductor thermopile, and the right side of the semiconductor thermopile is in contact with the outer wall of the second membrane solution component, so as to heat the solution flowing into the first heating component in the closed path.
The semiconductor thermopile may choose whether left side heating or right side heating is used. For example, in the dehumidified state, the fin on the left side is selected to be heated, and the fin on the right side is not heated, that is, left heat and right cool. In the humidified state, the right side is selected to be heated, and the left side fins are not heated. The semiconductor thermopile of this embodiment is not limited to the arrangement of the left fin, and the right fin may not be entirely in contact with the outer wall of the second membrane solution assembly, or may be arranged in a reverse position.
Optionally, the second heating component 103 is an electric heater, and is disposed on a section of the closed path near the bottom end of the second membrane solution component, and is used for heating the solution flowing into the second heating component in the closed path.
Optionally, the air treatment device further comprises: the total heat exchanger 109 is connected to the first membrane solution module 101 and the second membrane solution module 102, and is configured to supply air to the first membrane solution module 101 and the second membrane solution module 102.
The present embodiment is described below with reference to fig. 1 and 2.
In the dehumidification operation state shown in fig. 1, the electric heater (the second heating assembly 103) is turned off in this state. The semiconductor thermopile (first heating element 104) is turned on, with the hot side on the left and the cold side on the right of the semiconductor thermopile. The dilute solution in the left hand path is heated and boiled by the hot end of the semiconductor thermopile. The two-phase solution fluid flows upward through the hollow fiber membrane tubes of the first membrane solution module and water molecules are carried by the regeneration air 110 through the membrane walls of the first membrane solution module to the outside 112. And then enters a condenser 105 for cooling and condensation. The concentrated solution then passes down through the hollow fiber membrane tubes of the second membrane solution module, water molecules in the fresh air 111 flowing outside the tubes are absorbed by the concentrated solution through the membrane walls of the second membrane solution module, and reaches a dry state to be sent to the room 113 while the concentrated solution is diluted. And then heating the semiconductor thermopile hot side, and then entering the first membrane solution assembly to release moisture for concentration, thereby completing the cycle.
In the humidifying operating state shown in fig. 2, the electric heating is switched on in the preheating phase and switched off in operation (since the energy consumption of the electric heating is comparatively large, it can be heated by the semiconductor thermopile in operation). The semiconductor thermopile is open, with the cold side on the left and the hot side on the right. The dilute solution in the right hand path is first heated by the electric heater surface and then by the hot end of the semiconductor thermopile, boiling. The mixed two-phase fluid flows upwards through the hollow fiber membrane tubes of the second membrane solution assembly 102, and water molecules enter the fresh air 111 outside the tubes through the membrane walls of the second membrane solution assembly 102, so that the humidification of the fresh air is completed, and the fresh air is conveyed into the room 113. And then enters a condenser 105 for cooling and condensation. The concentrated solution then passes through the inside of the hollow fiber membrane tubes of the first membrane solution module 101, water molecules in the supplied moisture 115 (shown in fig. 2) flowing outside the hollow fiber membrane tubes are absorbed by the concentrated solution through the membrane walls of the first membrane solution module 101, are discharged outside the chamber 112, and at the same time, the concentrated solution is diluted and then passes downward through the cold end of the semiconductor thermopile. And then is heated by the second heating component 103, and enters the second membrane solution component 102 for concentration, thus completing the circulation.
The regeneration air 110 and the moisture supply 115 may be indoor exhaust air or a mixture of fresh air and indoor exhaust air.
Optionally, the air treatment device further comprises: a liquid storage tank 106 connected to the bottom end of the heating section for storing the solution. The solution is stored in the solution storage tank, and the solution in the solution storage tank is the same as the solution in the passage, so that the reliability is improved and the running stability of the system is improved mainly for ensuring the solution quantity.
Optionally, the closed path is in a vacuum state and is filled with the solution internally, but the closed path is not required to be filled with the solution, so that the solution in the closed path can be heated by the heating part, and the height of the solution in the closed path is at least higher than the height of the heating part in the closed path.
Optionally, the connection point of the reservoir to the closed path is the lowest point 107 of the air treatment device. The solution circulation structure should ensure certain difference in height, the liquid storage tank is connected with the solution passage by a three-way valve, the lowest point 107 on the appearance structure should be a solution circulation low point, and the lowest point 107 is provided with a pressure sensor, a temperature sensor, a concentration sensor, a flowmeter and the like. The condenser 105 should be located at a high position where the solution circulates, and the cold side of the first heating element is not limited to a cooling form such as air cooling, water cooling, etc., and may be plate type, shell and tube type, etc. The first membrane solution module and the second membrane solution module are not limited to the hollow fiber membrane structure, but may be a plate-type fiber membrane structure or the like.
Alternatively, the solution can be LiCl solution with a certain concentration, caCl 2 Solutions, liBr solutions, and the like, having a boiling point of 40-80 ℃ under vacuum, and mixtures thereof.
When the air treatment device is controlled, the height H of the solution in the system and the concentration q of the solution can be determined according to the pressure at the lowest point 107. The height of the solution is required to be higher than the position of the heating part; the concentration of the dehumidifying operation starting solution needs to meet the minimum concentration of moisture in the absorbed air, and the concentration of the humidifying operation starting solution needs to be smaller than the maximum concentration of released moisture; the semiconductor thermopile is directly started in the dehumidification state, the electric heater and the semiconductor thermopile are simultaneously started in the humidification state, and after the circulation flow is stable, the electric heating is turned off.
At shutdown, the semiconductor thermopile is first de-energized and the condenser continues to operate for a fixed period of time or until the system temperature stabilizes.
The fresh air outlet humidity RH1 is set. In the dehumidification running state, if the duration of the supply humidity RH duration t1 is detected to be greater than RH1, the regeneration air flow rate is increased, the excessive humidity of the air outlet is avoided, and if the duration of t1+Deltat duration is greater than RH1, the supply power is reduced, so that the system circulation of the air treatment device is slowed down, or otherwise, the regeneration air flow rate is reduced, and the humidity of the air outlet is ensured to meet the set humidity requirement. When the humidification state is operated, if the duration of the detected humidity supply RH for the duration of t2 is smaller than RH1, the humidity supply flow is increased, the duration of t2+delta t is smaller than RH1, the power supply is reduced, and otherwise, the humidity supply flow is reduced.
In normal operation, the flow is stable and the solution concentration is stable. If the system pressure rising/falling speed is higher than a preset pressure value, stopping the heating device; if the system pressure is higher than a lower set value P1, increasing the cold side flow of the condenser; if the system pressure is higher than the protection value P2, increasing the cold side flow of the condenser and reducing the heating power so as to reduce the system pressure; if the system pressure is higher than the threshold value P3, the machine is stopped.
In normal operation, the flow is stable and the system pressure is stable. In the dehumidified state, if the solution concentration is lower than q1, the regeneration air flow rate is increased, so that the concentration is easy to increase; if the solution concentration is higher than q2, reducing the regeneration air flow to avoid the concentration being too high; if the concentration of the solution is higher than q3, the regenerated air supply fan is turned off, and the water in the solution is not removed. In the humidifying state, if the concentration of the solution is lower than q1, reducing the flow rate of supplied moisture so as to avoid the concentration of the solution from being too low; if the concentration of the solution is higher than q2 and the solution is in a humidifying state, increasing the humidity supply flow; if the concentration of the solution is higher than q3, stopping. The q1, q2 and q3 are concentration values preset by the system.
In normal operation, the pressure is stable and the solution concentration is stable. If the flow is less than the minimum flow value, blocking may occur, and stopping the machine to check the filter; and if the flow is larger than the highest flow value, reducing the power supply.
Emergency protection: the upper part of the liquid storage tank is provided with a safety valve, and the pressure relief is automatically opened when the pressure in the system is greater than the maximum pressure value.
The embodiment of the application also provides an air treatment method. Fig. 3 is a flow chart of an air treatment method according to an embodiment of the present application. The steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions, and although a logical order is illustrated in the flowcharts, in some cases the steps illustrated or described may be performed in an order other than that illustrated herein
As shown in fig. 3, the air treatment method includes the steps of:
s302, under a humidifying operation state, absorbing water in air by the solution in the first membrane solution assembly to obtain a dilute solution, and releasing water in the dilute solution by the second membrane solution assembly;
s304, in a dehumidification operation state, removing water in the solution in the first membrane solution assembly to obtain a concentrated solution, and absorbing water in the air by using the concentrated solution in the second membrane solution assembly.
Optionally, in the humidifying operation state, the solution absorbing moisture in the air in the first membrane solution assembly to obtain a diluted solution, and the releasing moisture in the diluted solution in the second membrane solution assembly includes: under the humidifying operation state, the heating part is controlled to heat the first solution in the closed pipeline to obtain a two-phase solution; releasing the water in the two-phase solution in the second membrane solution assembly to obtain a second solution; condensing the first solution in a condenser to obtain a third solution, wherein the concentration of the third solution is higher than that of the first solution; the third solution absorbs moisture in the air in the first membrane solution assembly to obtain a first solution.
Optionally, in the dehumidification operation state, removing the moisture in the solution in the first membrane solution assembly to obtain a concentrated solution, and absorbing the moisture in the air by using the concentrated solution in the second membrane solution assembly includes: in a dehumidification running state, controlling the heating part to heat the fourth solution in the closed pipeline to obtain a two-phase solution; releasing the moisture in the two-phase solution in the first membrane solution assembly to obtain a fifth solution; condensing the fifth solution in a condenser to obtain a sixth solution, wherein the concentration of the sixth solution is higher than that of the fourth solution; and releasing moisture from the sixth solution in the second membrane solution assembly to obtain a fourth solution.
In the dehumidification operation state shown in fig. 1, the electric heater (the second heating assembly 103) is turned off in this state. The semiconductor thermopile (first heating element 104) is turned on, with the hot side on the left and the cold side on the right of the semiconductor thermopile. The dilute solution in the left hand path is heated and boiled by the hot end of the semiconductor thermopile. The two-phase solution fluid flows upward through the hollow fiber membrane tubes of the first membrane solution module and water molecules are carried by the regeneration air 110 through the membrane walls of the first membrane solution module to the outside 112. And then enters a condenser 105 for cooling and condensation. The concentrated solution then passes down through the hollow fiber membrane tubes of the second membrane solution module, water molecules in the fresh air 111 flowing outside the tubes are absorbed by the concentrated solution through the membrane walls of the second membrane solution module, and reaches a dry state to be sent to the room 113 while the concentrated solution is diluted. And then heating the semiconductor thermopile hot side, and then entering the first membrane solution assembly to release moisture for concentration, thereby completing the cycle.
In the humidifying operating state shown in fig. 2, the electric heating is switched on in the preheating phase and switched off in operation (since the energy consumption of the electric heating is comparatively large, it can be heated by the semiconductor thermopile in operation). The semiconductor thermopile is open, with the cold side on the left and the hot side on the right. The dilute solution in the right hand path is first heated by the electric heater surface and then by the hot end of the semiconductor thermopile, boiling. The mixed two-phase fluid flows upwards through the hollow fiber membrane tubes of the second membrane solution assembly 102, and water molecules enter the fresh air 111 outside the tubes through the membrane walls of the second membrane solution assembly 102, so that the humidification of the fresh air is completed, and the fresh air is conveyed into the room 113. And then enters a condenser 105 for cooling and condensation. The concentrated solution then passes through the hollow fiber membrane tubes of the first membrane solution module 101, water molecules in the supplied moisture 115 flowing outside the hollow fiber membrane tubes are absorbed by the concentrated solution through the membrane walls of the first membrane solution module 101, discharged outside the chamber 112 while the concentrated solution is diluted and then passed down through the cold end of the semiconductor thermopile. And then is heated by the second heating component 103, and enters the second membrane solution component 102 for concentration, thus completing the circulation.
In the foregoing embodiments of the present application, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed technology may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, for example, may be a logic function division, and may be implemented in another manner, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application, which are intended to be comprehended within the scope of the present application.
Claims (12)
1. The utility model provides an air treatment device, its characterized in that, air treatment device includes first membrane solution subassembly, second membrane solution subassembly, condenser and heating portion, first membrane solution subassembly second membrane solution subassembly the condenser with heating portion passes through closed passageway and connects, wherein:
the first membrane solution assembly is used for treating air passing through the first membrane solution assembly by utilizing the solution flowing through the first membrane solution assembly;
the second membrane solution assembly is used for treating air passing through the second membrane solution assembly by using the solution flowing through the second membrane solution assembly;
the heating part is connected between the bottom end of the first membrane solution component and the bottom end of the second membrane solution component and is used for heating the solution pre-filled in the closed passage;
the condenser is connected between the top end of the first membrane solution assembly and the top end of the second membrane solution assembly and is used for condensing the pre-filled solution in the closed passage.
2. An air treatment device according to claim 1, wherein the heating portion comprises:
the top end of the first heating component is communicated with the bottom end of the first film solution component;
the top end of the second heating component is communicated with the bottom end of the second film solution component, and the bottom end of the first heating component is communicated with the bottom end of the second heating component.
3. The air treatment device of claim 2, wherein the first heating assembly and the second heating assembly are any one of the following heating assemblies:
semiconductor thermopiles, solar energy, heat pumps and electric heaters.
4. An air treatment device according to claim 1, wherein the position of the heating portion in the passage is lower than the position of the condenser in the passage.
5. The air treatment device of claim 1, further comprising:
and the total heat exchanger is connected with the first membrane solution assembly and the second membrane solution assembly and is used for supplying air to the first membrane solution assembly and the second membrane solution assembly.
6. The air treatment device of claim 1, further comprising:
the liquid storage tank is connected to the bottom end of the heating part and used for storing solution.
7. An air treatment device according to any one of claims 1 to 6, wherein the height of the solution in the closed path is at least higher than the height of the heating portion in the closed path.
8. The air treatment device of claim 6, wherein the connection point of the reservoir and the closed path is a lowest point of the air treatment device.
9. An air treatment device according to claim 1, wherein the closed path is in a vacuum state.
10. An air treatment method based on the air treatment device according to any one of claims 1 to 9, comprising:
in a humidifying operation state, absorbing water in the air by the solution in the first membrane solution assembly to obtain a dilute solution, and releasing the water in the dilute solution by the second membrane solution assembly;
and in a dehumidification operation state, removing water in the solution in the first membrane solution assembly to obtain a concentrated solution, and absorbing water in the air by using the concentrated solution in the second membrane solution assembly.
11. The air treatment device of claim 10, wherein in the first membrane solution module, the water in the air is absorbed by the solution to obtain a dilute solution, and wherein the releasing the water in the dilute solution by the second membrane solution module comprises:
under the humidifying operation state, the heating part is controlled to heat the first solution in the closed pipeline to obtain a two-phase solution;
releasing the water in the two-phase solution in the second membrane solution assembly to obtain a second solution;
condensing the first solution in a condenser to obtain a third solution, wherein the concentration of the third solution is higher than that of the first solution;
and the third solution absorbs moisture in the air in the first membrane solution assembly to obtain the first solution.
12. The air treatment device of claim 10, wherein in a dehumidified operating state, a concentrated solution is obtained after removing moisture in the solution in the first membrane solution module, and absorbing moisture in air with the concentrated solution in the second membrane solution module comprises:
in the dehumidification operation state, the heating part is controlled to heat the fourth solution in the closed pipeline to obtain a two-phase solution;
releasing the moisture in the two-phase solution in the first membrane solution assembly to obtain a fifth solution;
condensing the fifth solution in a condenser to obtain a sixth solution, wherein the concentration of the sixth solution is higher than that of the fourth solution;
and releasing moisture from the sixth solution in the second membrane solution assembly to obtain the fourth solution.
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| CN201810361785.3A CN108317615B (en) | 2018-04-20 | 2018-04-20 | Air treatment method and device |
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| CN109489133A (en) * | 2018-09-29 | 2019-03-19 | 东南大学 | A kind of solar energy solution regeneration system based on passive vacuum |
| CN113883593B (en) * | 2021-09-13 | 2023-07-25 | Tcl空调器(中山)有限公司 | Air conditioner |
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