CN107676889B - Disc type membrane dehumidifier and dehumidification system - Google Patents
Disc type membrane dehumidifier and dehumidification system Download PDFInfo
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- CN107676889B CN107676889B CN201711079447.2A CN201711079447A CN107676889B CN 107676889 B CN107676889 B CN 107676889B CN 201711079447 A CN201711079447 A CN 201711079447A CN 107676889 B CN107676889 B CN 107676889B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
- F24F2003/144—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 by dehumidification only
Abstract
The invention discloses a disc type membrane dehumidifier and a dehumidification system. The dehumidifier comprises a shell, an air flow channel and a solution flow channel, wherein the shell is disc-shaped, and the air flow channel and the solution flow channel are both planar spiral tubes which are in contact with each other and are parallel to each other; the included angle of the projections of the air inlet and the liquid inlet on the horizontal plane is 180 degrees, so that the flowing directions of the gas entering the air flow channel and the liquid in the solution flow channel are opposite, and counter flow or quasi-counter flow is formed. The corresponding dehumidification system comprises the disc type membrane dehumidifier. The invention has the advantages of sufficient heat exchange, good mass transfer effect, high moisture absorption efficiency and the like.
Description
Technical Field
The invention belongs to the technical field of air dehumidification, and particularly relates to a disc type membrane dehumidifier and a dehumidification system.
Background
Air humidity is a key factor affecting the comfort level of the environment. In hot, humid climates, particularly in gulf cities, dehumidification is almost as important as cooling. Researches show that the relative humidity suitable for human bodies is 40-60%, and the excessive humidity can cause discomfort to human bodies and can also cause mass propagation of certain viruses and bacteria in buildings if serious.
Along with the development of national economy, the living standard of people is continuously improved, the requirements on the damp and hot environment of buildings are also continuously improved, the application of air conditioners is more and more extensive, and the requirements on air conditioner systems are also more and more high. The air conditioning system is used as a large energy consumption user in China accounting for about 15% of national energy consumption, and the dehumidification energy consumption is 20% -40% of the total energy consumption in summer of most areas in China, especially in south China, so that the humidity control has great significance for realizing the energy saving of the air conditioning system.
Common air dehumidification methods include cooling dehumidification, solid sorbent dehumidification, and liquid desiccant dehumidification. The cooling dehumidification method is to cool the wet air to a temperature below the dew point temperature, so that water vapor in the air is condensed and then removed from the air. The method needs to reduce the temperature of the air to be lower than the dew point temperature, removes the moisture and then raises the temperature to the air supply state, and has high energy consumption. Solid adsorbent dehumidification is a method of dehumidifying with some solid adsorbents. The biggest defects of the method are that the solid adsorbents are difficult to regenerate, the device is complex, the volume of equipment is large, and the manufacturing cost is high. The liquid hygroscopic agent is used for dehumidification by absorbing moisture in the air by certain hygroscopic solution. The liquid is easy to dehumidify and regenerate, and the defect is that the processing air is directly contacted with the liquid moisture absorbent, so that the moisture absorbent is easily entrained by the air, and further the corrosion of pipelines and equipment is caused. In addition, as heating progresses, the solution temperature increases, which reduces heat exchange efficiency.
At the same time, the desiccant has a high affinity for water, and is able to absorb water vapor from its vicinity. In a desiccant cooling cycle, the desiccant reduces the humidity of the air by absorbing moisture from the air, and then reduces the air temperature through a conventional cooling coil or other means, such as an evaporative cooler. However, the desiccant solution that has absorbed moisture is reduced in concentration and needs to be concentrated in the regenerator, and the heat for desiccant regeneration represents the maximum capacity requirement associated with the liquid desiccant system.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the disc type membrane dehumidifier and the dehumidification system which have the advantages of sufficient heat exchange, good mass transfer effect and high moisture absorption efficiency.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the disc type membrane dehumidifier comprises a shell, an air flow channel and a solution flow channel, wherein the air flow channel and the solution flow channel are arranged in the shell; the shell is disc-shaped, the air flow channel and the solution flow channel are both planar spiral tubes, the air flow channel is in contact with the solution flow channel, and the planes of the air flow channel and the solution flow channel are parallel to each other; the air inlet of the air flow passage is positioned at the outermost ring of the spiral pipe and penetrates out of the shell, the air outlet of the air flow passage is positioned in the middle of the spiral pipe and has an upward opening, and the opening of the air outlet penetrates out of the shell; the liquid inlet of the solution flow channel is positioned at the outermost ring of the spiral pipe and penetrates out of the shell, the liquid outlet of the solution flow channel is positioned in the middle of the spiral pipe, the opening of the liquid outlet faces downwards, and the opening of the liquid outlet penetrates out of the shell; the included angle of the projections of the air inlet and the liquid inlet on the horizontal plane is 180 degrees, so that the flowing directions of the gas entering the air flow channel and the liquid in the solution flow channel are opposite, and counter flow or quasi-counter flow is formed.
Furthermore, the air flow channels and the solution flow channels are provided with a plurality of channels, and the air flow channels and the solution flow channels are alternately arranged.
Furthermore, the air flow channels are connected end to end in sequence to form a continuous air flow channel; the solution flow channels are connected end to end and communicated in sequence to form a continuous solution flow channel.
Furthermore, a plurality of mass transfer ports are respectively arranged at the corresponding positions of the pipe wall where the air flow channel and the solution flow channel are contacted, and a permselective semipermeable membrane is arranged at the mass transfer ports and only allows water vapor in the air flow channel to permeate and enter the solution flow channel.
Furthermore, a fin is arranged between the two adjacent air flow channels and the solution flow channel, the fin comprises a plurality of fins, one ends of the plurality of fins are fixed together and positioned on the axis of the shell, and the other ends of the plurality of fins extend along the radius direction of the shell; the wings are made of water-permeable non-woven fabrics, the positions of the mass transfer ports are all arranged at the positions of the wings, and the selective permeability semipermeable membranes are fixed on the wings.
Still further, the quantity of wing is 3 at least, and the central angle between two adjacent wings is equal.
Still further, the section of wing is triangle-shaped.
Further, a coil cooling pipe is arranged in the solution flow passage, and cooling liquid or cooling gas is introduced into the coil cooling pipe and used for cooling the liquid in the solution flow passage.
The dehumidifier of the dehumidification system is the disc type membrane dehumidifier.
The dehumidification system also comprises a liquid storage tank, a cooler, a regenerator, a heater and an induced draft fan; the outlet of the liquid storage tank is communicated with the liquid inlet of the disc type membrane dehumidifier, the liquid outlet of the disc type membrane dehumidifier is communicated with the inlet of the heater, the outlet of the heater is communicated with the inlet of the regenerator, the outlet of the regenerator is communicated with the inlet of the cooler, and the outlet of the cooler is communicated with the inlet of the liquid storage tank to form solution circulation; the induced draft fan is communicated with an air inlet of the disc type membrane dehumidifier to provide fresh air.
Wherein, the heater can be a solar heater.
Compared with the prior art, the invention has the following beneficial effects:
1. the heat exchange is sufficient. The disc type membrane dehumidifier comprises a solution flow channel and an air flow channel which are parallel to each other and are alternately arranged, wherein the inlet speed directions of the solution flow channel and the air flow channel are opposite, the flowing directions of fluids in the two flow channels are opposite, quasi-countercurrent flow is adopted, and the alternating current is more sufficient.
2. The mass transfer effect is good. The air flow channel is provided with fins, so that the disturbance of air in the flow channel can be enhanced, and the mass transfer is enhanced; meanwhile, the one-way membrane is arranged between the air flow channel and the solution flow channel, so that a mass transfer strengthening effect can be achieved, and meanwhile, the corrosion of pipelines and equipment caused by moisture absorbent entrained by air is effectively avoided.
3. The moisture absorption efficiency is high. The inside coil pipe formula cooling tube that is provided with of solution runner, let in coolant liquid or cooling gas in the cooling tube for cool off the solution in the solution runner, the cooling tube takes away the heat of dehumidification, has reduced the solution temperature, has avoided solution temperature rising and the reduction heat exchange efficiency and the hygroscopicity that arouse.
4. The dehumidifier is disc type in appearance, has avoided quadrangle or rectangular limit corner, can guarantee to reduce the dehumidifier volume under the condition of active membrane area to reduce whole dehydrating unit's volume, in addition, the membrane dehumidifier of disc type structure conveniently takes out from dehydrating unit and puts into.
Drawings
FIG. 1 is a schematic diagram of the dehumidification system of the present disclosure;
FIG. 2 is a schematic view illustrating the structure of the disk type membrane dehumidifier of the present invention;
FIG. 3 is a schematic view showing a structure of a unit consisting of a solution flow channel and an air flow channel of the disk type membrane dehumidifier;
FIG. 4-a is a schematic view of a fin construction;
FIG. 4-b is a schematic view of another fin configuration;
fig. 5 is a schematic view of a structure of a cooling pipe with a coil pipe.
In the drawings: 1-disc type membrane dehumidifier; 2, a liquid storage tank; 3-a cooler; 4, a second induced draft fan; 5-a regenerator; 6, a heater; 7, a draught fan; 8-liquid inlet; 9-air outlet; 10-solution flow path; 11-air flow channel; 12-a liquid outlet; 13-a fin; 14-an air inlet; 15-coil cooling pipe.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
1. A disc-type membrane dehumidifier, as shown in fig. 2-4, comprising a housing, an air flow channel 11 and a solution flow channel 10, wherein the air flow channel 11 and the solution flow channel 10 are arranged in the housing; the shell is disc-shaped, the air runner 11 and the solution runner 10 are both planar spiral tubes, the air runner 11 is in contact with the solution runner 10, and planes of the air runner 11 and the solution runner 10 are parallel to each other; the air inlet 14 of the air flow channel 11 is positioned at the outermost ring of the spiral pipe and penetrates out of the shell, the air outlet 9 of the air flow channel is positioned in the middle of the spiral pipe and has an upward opening, and the opening of the air outlet 9 penetrates out of the shell; the liquid inlet 8 of the solution flow channel 10 is positioned at the outermost ring of the spiral pipe and penetrates out of the shell, the liquid outlet 12 of the solution flow channel is positioned in the middle of the spiral pipe and has a downward opening, and the opening of the liquid outlet 12 penetrates out of the shell; the included angle between the projections of the air inlet 14 and the liquid inlet 8 on the horizontal plane is 180 degrees, so that the flowing directions of the gas entering the air flow channel 11 and the liquid of the solution flow channel 10 are opposite, and counter flow or quasi-counter flow is formed.
The cross-section of dehumidifier is circular, compares in traditional rectangle more saves space, improves space utilization. The solution flows in from the solution flow channel 10 in a tangential direction, and an included angle between the direction of the air to be dehumidified flowing into the air flow channel 11 and the direction of the liquid inlet 8 is 180 degrees, so that the flow of the fluid in the solution flow channel 10 and the fluid in the air flow channel 11 is a counter flow or a quasi-counter flow, and the mass transfer efficiency is higher.
Preferably, the air channels 11 and the solution channels 10 are provided in a plurality, and the air channels 11 and the solution channels 10 are alternately arranged.
As further optimization, the air flow channels 11 are sequentially communicated end to form continuous air flow channels 11; the plurality of solution channels 10 are sequentially communicated end to form a continuous solution channel 10.
As a further optimization, a plurality of mass transfer ports are respectively formed at corresponding positions of the tube wall where the air flow channel 11 and the solution flow channel 10 are in contact with each other, and a permselective semi-permeable membrane is arranged at the mass transfer ports, and only water vapor in the air flow channel 11 is allowed to permeate through the permselective semi-permeable membrane and enter the solution flow channel 10.
As a further optimization, a fin 13 is arranged between two adjacent air flow channels 11 and solution flow channels 10, the fin 13 includes a plurality of fins, one end of each of the plurality of fins is fixed together and located on the axis of the housing, and the other end of each of the plurality of fins extends along the radial direction of the housing; the wings are made of water-permeable non-woven fabrics, the positions of the mass transfer ports are all arranged at the positions of the wings, and the selective permeability semipermeable membranes are fixed on the wings. The fins 13 are arranged between the lower surface of the air flow channel 11 and the upper surface of the solution flow channel 10, so that the turbulence intensity is increased, and the mass transfer efficiency between the two flow channels is enhanced.
As a further optimization, the number of the wings is at least 3, and the central angles between two adjacent wings are equal.
As a further optimization, the cross section of the wing is triangular. The fins 13 are triangular fins 13 made of water-permeable non-woven fabrics, and the non-woven fabrics have higher strength and toughness compared with used semipermeable membranes, can resist the impulse force of fluid flowing in a flow channel and simultaneously do not block the permeation of water vapor.
Preferably, a coil cooling pipe 15 is further disposed in the solution flow channel 10, and a cooling liquid or a cooling gas is introduced into the coil cooling pipe 15 for cooling the liquid in the solution flow channel 10. And cooling liquid or cooling gas is introduced into the cooling pipe to cool the solution, so that the dehumidification heat is taken away, the temperature of the solution is reduced, and the high hygroscopicity of the solution is kept.
2. The dehumidifier of the dehumidification system is the disc type membrane dehumidifier 1.
As shown in fig. 1, the dehumidification system further comprises a liquid storage tank 2, a cooler 3, a regenerator 5, a heater 6 and an induced draft fan 7; the outlet of the liquid storage tank 2 is communicated with the liquid inlet 8 of the disc type membrane dehumidifier 1, the liquid outlet 12 of the disc type membrane dehumidifier 1 is communicated with the inlet of the heater 6, the outlet of the heater 6 is communicated with the inlet of the regenerator 5, the outlet of the regenerator 5 is communicated with the inlet of the cooler 3, and the outlet of the cooler 3 is communicated with the inlet of the liquid storage tank 2 to form solution circulation; the induced draft fan 7 is communicated with the air inlet of the disc type membrane dehumidifier 1 to provide fresh air.
Wherein, the heater 6 can be a solar heater. The solar heater heats the dilute solution flowing out of the dehumidifier to the temperature required by regeneration;
the regenerator 5 removes the moisture absorbed in the solution dehumidification process, and recovers the concentration of the dehumidification solution.
The regenerated solution has higher temperature, the cooler 3 reduces the temperature of the solution and then flows into the liquid storage tank 2 for storage, and then the solution enters the dehumidifier for dehumidification, so that the circulation of the dehumidification liquid is realized.
In addition, a second induced draft fan 4 can be included, which is in communication with the regenerator 5 for carrying away the water vapor in the dehumidification solution.
3. Examples of the embodiments
Example 1
As shown in fig. 2 and 3, the disk-type membrane dehumidifier is formed by alternately arranging and combining a plurality of solution flow channels and air flow channels, two adjacent flow channels are separated by a semipermeable membrane, and a unit consisting of a solution flow channel 10 and an air flow channel 11 is described below, when dehumidifying, dehumidifying solution enters the solution flow channel 10 from a liquid inlet 8, flows counterclockwise in a vortex shape in the flow channel, finally flows out of the flow channel at the center of the flow channel, and then flows through the next solution flow channel or flows out of the disk-type membrane dehumidifier from a liquid outlet 12; meanwhile, outdoor fresh air flows into the air flow channel 11 from the air inlet 14, the inlet direction of the air inlet 14 and the direction of the liquid inlet 8 form 180 degrees, the air flows into the flow channel in a vortex-shaped clockwise direction and forms counter flow or quasi-counter flow with the flow of the solution, the mass transfer efficiency is higher, and finally the air flows out of the flow channel from the center and flows through the next air flow channel or flows out of the air outlet 9. In the process, moisture in the air is absorbed by the dehumidifying solution through the selective semi-permeable membrane, and the dehumidified air is sent to the room for use; the fins 13 are arranged between the solution flow channel 10 and the air flow channel 11, and under the action of the fins 13, the flow strength of the fluid in the solution flow channel 10 and the fluid in the air flow channel 11 are enhanced simultaneously, so that the mass transfer efficiency is improved.
In this embodiment, the dehumidifying solution is a water-absorbing solution, such as LiBr solution, liCl solution, caCl solution 2 Solution, KCHOO solution, ca (NO) 3 ) Solution, liNO 3 One or more mixed solutions of solutions having a water vapor partial pressure equilibrium value lower than that of the surface of pure water fluid at a predetermined temperature, and having strong water absorbability as a water absorbing agent. The air dehumidifying device can absorb moisture in air at high speed and dehumidify the air.
In this embodiment, the semipermeable membrane is a porous membrane of polyvinylidene fluoride whose surface is a thin layer of liquid silica gel or polydimethylsiloxane to increase the hydrophobicity of the membrane, thus allowing only water vapor to pass through the membrane, while other gases and liquids cannot pass through the membrane.
As shown in fig. 4-a and 4-b, in this embodiment, the installed fins need to resist the impact of fluid in two flow channels, and need high strength and toughness, but only the semipermeable membrane does not usually meet this requirement, and is made of water permeable nonwoven fabric, and the semipermeable membrane is attached to the surface of the nonwoven fabric, so that the triangular fins made of nonwoven fabric can resist the impact of fluid without hindering the transmission of water vapor, and the dehumidification efficiency is not affected, and meanwhile, the fins 13,4-a with different numbers of fins are four fins, and fig. 4-b is six fins.
Example 2
The main technical solution in this embodiment is the same as that in embodiment 1, and the features that are not explained in this embodiment adopt the explanations in embodiment one, which are not described herein again. As shown in fig. 5, the present embodiment is different from the first embodiment in that coil cooling pipes 15 are installed in the respective solution flow paths 10.
During operation, the vapor in the air has been absorbed to dehumidification solution, and the latent heat of vapor leads to dehumidification solution temperature to rise, and dehumidification efficiency reduces, so at the dehumidifier during operation, lets in cooling water or cooling gas simultaneously in coil cooling tube 15, takes away the dehumidification heat of dehumidification liquid, is that dehumidification liquid resumes higher dehumidification efficiency.
Example 3
As shown in fig. 1, a dehumidification system includes a disc-type membrane dehumidifier 1, a liquid storage tank 2, a cooler 3, a second induced draft fan 4, a regenerator 5, a heater 6 (a solar heater is selected), and an induced draft fan 7. When the dehumidifier works, concentrated dehumidifying solution in the liquid storage tank 2 flows into the disc type membrane dehumidifier 1, the dehumidified dehumidifying solution absorbs water vapor so that the concentration is reduced, the dehumidifying solution flows through the heater 6 to be heated, the temperature required by heating and regeneration flows into the regenerator 5 to be concentrated and regenerated, the dehumidifying solution passing through the regenerator 5 is recovered into the concentrated solution, the solution temperature is higher, the dehumidifying efficiency is lower, the solution flows through the cooler 3 to be cooled, and finally the solution flows into the liquid storage tank 2 to be stored and enters the dehumidifier 1 again to be dehumidified, so that the circulation is completed; outdoor fresh air is sent into the disc type membrane dehumidifier 1 by the induced draft fan 7, and flows into the room for use after being dehumidified by the dehumidifying solution; meanwhile, outdoor fresh air is sent into the regenerator 5 by the second induced draft fan 4, and water vapor in the dehumidification solution is taken away. In the embodiment, the system respectively completes the dehumidification of air and the regeneration of solution by using the disc type membrane dehumidifier 1 and the regenerator 5, and the two processes realize circulation, so that the dehumidification system can continuously work.
In the present embodiment, the regenerator 5 is a hollow fiber membrane contactor.
The above examples of the present invention are merely examples for illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Not all embodiments are exhaustive. All obvious changes and modifications of the present invention are within the scope of the present invention.
Claims (8)
1. The disc type membrane dehumidifier comprises a shell, an air flow channel and a solution flow channel, wherein the air flow channel and the solution flow channel are arranged in the shell; the device is characterized in that the shell is disc-shaped, the air flow channel and the solution flow channel are both planar spiral tubes, the air flow channel is in contact with the solution flow channel, and the planes of the air flow channel and the solution flow channel are parallel to each other; the air inlet of the air flow passage is positioned at the outermost ring of the spiral pipe and penetrates out of the shell, the air outlet of the air flow passage is positioned in the middle of the spiral pipe and has an upward opening, and the opening of the air outlet penetrates out of the shell; the liquid inlet of the solution flow passage is positioned at the outermost ring of the spiral pipe and penetrates out of the shell, the liquid outlet of the solution flow passage is positioned in the middle of the spiral pipe and has a downward opening, and the opening of the liquid outlet penetrates out of the shell; the included angle of the projections of the air inlet and the liquid inlet on the horizontal plane is 180 degrees, so that the flowing directions of the gas entering the air flow channel and the liquid in the solution flow channel are opposite, and counter flow or quasi-counter flow is formed;
the air flow channels and the solution flow channels are arranged alternately; and a coil cooling pipe is also arranged in the solution flow passage, and cooling liquid or cooling gas is introduced into the coil cooling pipe and is used for cooling the liquid in the solution flow passage.
2. The disc type membrane dehumidifier as claimed in claim 1, wherein a plurality of the air flow channels are sequentially connected end to form a continuous air flow channel; the solution flow channels are connected end to end and communicated in sequence to form a continuous solution flow channel.
3. The disk-type membrane dehumidifier as claimed in claim 1, wherein a plurality of mass transfer ports are respectively formed at corresponding positions of the tube wall where the air flow channel and the solution flow channel are contacted, and a selectively permeable semi-permeable membrane is disposed at the mass transfer ports, and the selectively permeable semi-permeable membrane allows only water vapor in the air flow channel to permeate into the solution flow channel.
4. The membrane dehumidifier of claim 3, wherein a fin is disposed between two adjacent air flow passages and solution flow passages, the fin comprises a plurality of fins, one end of each of the plurality of fins is fixed together and located on the axis of the shell, and the other end of each of the plurality of fins extends along the radius direction of the shell; the wing is made of water-permeable non-woven fabrics, the mass transfer ports are formed in the positions of the wing, and the selective permeability semipermeable membrane is fixed on the wing.
5. The disc-type membrane dehumidifier of claim 4, wherein the number of the wings is at least 3, and the central angles between two adjacent wings are equal.
6. The disk type membrane dehumidifier of claim 4, wherein the wing has a triangular cross-section.
7. A dehumidification system comprising a disk type membrane dehumidifier as claimed in any one of claims 1 to 6.
8. The dehumidification system of claim 7, further comprising a liquid storage tank, a cooler, a regenerator, a heater, and an induced draft fan; the outlet of the liquid storage tank is communicated with the liquid inlet of the disc type membrane dehumidifier, the liquid outlet of the disc type membrane dehumidifier is communicated with the inlet of the heater, the outlet of the heater is communicated with the inlet of the regenerator, the outlet of the regenerator is communicated with the inlet of the cooler, and the outlet of the cooler is communicated with the inlet of the liquid storage tank to form solution circulation; the induced draft fan is communicated with an air inlet of the disc type membrane dehumidifier to provide fresh air.
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| CN108482060A (en) * | 2018-03-09 | 2018-09-04 | 东莞理工学院 | A kind of electric vehicle air circulation system |
| CN109764419B (en) * | 2018-12-28 | 2021-06-11 | 东南大学 | Pump-free solution dehumidifying and regenerating device based on solution infiltration |
| CN114100173A (en) * | 2021-11-03 | 2022-03-01 | 何金翠 | Light component removal rectifying tower |
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| CN207599898U (en) * | 2017-11-06 | 2018-07-10 | 东莞理工学院 | A kind of disc type film dehumidifier and dehumidification system |
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