CN102430323B - Dehumidify device for indoor environment - Google Patents
Dehumidify device for indoor environment Download PDFInfo
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- CN102430323B CN102430323B CN201110266820.1A CN201110266820A CN102430323B CN 102430323 B CN102430323 B CN 102430323B CN 201110266820 A CN201110266820 A CN 201110266820A CN 102430323 B CN102430323 B CN 102430323B
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Abstract
The invention relates to a dehumidify device for indoor environment, comprising a membrane component, an outdoor fan, an outdoor filter, an indoor fan, an indoor filter and an air return pipeline, wherein the membrane component comprises an outer membrane component shell, an inner membrane component shell, an upper baffle, a lower baffle, hollow fiber membrane yarns and sealing glue. The central parts of the two lateral surfaces of the outer membrane component shell are provided with an air exhaust inlet and an air exhaust outlet, the upper end surface and the lower end surface are provided with a fresh air inlet and a fresh air outlet, and the upper surface and the lower surface of the inner membrane component shell are opened. The hollow fiber membrane yarns pass through the sealing glue so as to be directly packaged in the inner membrane component shell, and the upper baffle and the lower baffle are arranged in the upper cavity and the lower cavity of the outer membrane component shell. The outdoor fan is connected with the fresh air inlet through the outdoor filter, the indoor fan is connected with the air exhaust inlet through the indoor filter, and the air return pipeline is arranged between the fresh air outlet and the fresh air inlet. The invention can be independently used for dehumidifying for the indoor environment at the low-voltage of 10 kPa to 30 kPa, so the dehumidify device is the dehumidify device for the indoor environment which has a simple structure, can be conveniently operated, and has performances of energy-saving, green, environment-friendly and high efficiency.
Description
Technical field
The present invention relates to a kind of Dehumidify device for indoor environment, belong to film dehumidifying technology field.
Background technology
Along with economic fast development and the raising of people's living standard, people are more and more higher to the requirement of the environment such as production, life.Relative humidity is one of important parameter for environmental project.The excessive living environment that not only affects people of air humidity, and can affect some machining process in the preservation of material and industrial production.Therefore, people must take effective measures to guarantee that air humidity meets the requirements.In addition, in dehumidifying, how to accomplish to save environmental protection and also more and more cause people's concern.At present, conventional indoor environment dehumidification mode is freezing type and absorption type, the weak point of freezing type dehumidifying be it to be subject to water freezing temperature be the restriction of 0 ℃, its outlet dew-point temperature is limited in scope, and cold-producing medium used also easily causes environmental pollution; The weak point of absorption type dehumidifying is equipment bulky complex, and not only various valve pipe fitting easily damages, and cause stabilization of equipment performance to decline, and energy consumption is higher.
Film dehumidifying technology is a kind of Novel dehumidifying technology growing up nearly decades, it take polymeric membrane as medium, utilizes its height to steam to select permeability, and the driving forces such as difference press in film both sides, water vapour molecule is preferentially seen through in film, reach the object of water-gas separation.It is compared with adsorption and dehumidification technology with freeze drying technology, has feature pollution-free, that energy consumption is low, equipment is simple to operation, dry gas is opened and obtained, is widely used in the field that need to dehumidify to compressed gas.
Known polymeric membrane air dehumidifier is single layer structure, and radical length is far smaller than axial length, and film silk is directly together with packaging shell, and this type of membrane dehumidifier vapour lock is larger, and sweep gas can not evenly be taken away infiltration water steam effectively.In addition, known membrane dehumidifier is all need combine other dehumidifying technologies during for Compressed Gas dehumidifying or for indoor dehumidification, has no the dehumidifying that is applied independently in low pressure (pressure is lower than 100kPa) air.Patent CN101687138A discloses a kind of hollow fiber membrane dehumidifier of miniaturization, and this device is mainly used in removing the contained moisture such as radgas discarded object that produce in atomic power station; Patent CN 101907333A discloses a kind of air cooling method and device thereof based on membrane separation technique, adopt film dehumidifying and vaporation-type cooling technology realize the cooling of air and regulate, but weak point is to use air compressor, and need to be in conjunction with vaporation-type cooling technology, equipment is complicated, and energy consumption is higher; Patent CN 101881490A discloses a kind of high-pressure dehumidifying formula novel aircraft environmental control system of applying membrane module, it dehumidifies to the pressure-air of two-wheeled boost type high pressure water separation regenerative air cycle cooling system system blower outlet by membrane module, and the air-to-air total heat exchanger using membrane module as dehumidifying/heat exchange is used, the weak point of this invention is to be applicable to the occasions with high-pressure system such as aircraft own, otherwise needs supercharging equipment to pressurize to air inlet; Patent CN 1605806A discloses composite dehumidifying method and equipment and the application based on film, it is characterized in that air and indoor exhaust wind to carry out damp and hot exchange by film, by secondary dehydrating unit, carry out degree of depth dehumidifying again, the weak point of this invention is on the basis of film dehumidifying technology, to need to carry out secondary dehumidifying in conjunction with compression refrigeration dehumidifying device or liquid absorption dehumidifying device or rotary dehumidifier, equipment is complicated, and energy consumption is higher.
Summary of the invention
In view of this, the object of the invention is to, larger for membrane module structure resistance in existing film dehumidifying technology, purge inhomogeneous shortcoming, and for Compressed Gas dehumidifying or while dehumidify for surrounding air, need in conjunction with other dehumidifying technologies, cause the weak point of equipment complexity only, provide that a kind of contact area is large, vapour lock is low, can be used for the novel high polymer membrane dehumidifier that 10kPa～30kPa low-pressure air dehumidifies.
A Dehumidify device for indoor environment, comprising: membrane module, outdoor fan, outdoor filter, indoor fan, indoor filter, air return pipeline; Outdoor fan is by outdoor filter junctional membrane assembly, and indoor fan is by indoor filter junctional membrane assembly;
Wherein membrane module comprises membrane module shell, membrane module inner casing, hollow fiber film thread, sealing; Membrane module inner casing is the frame structure that upper and lower surface is uncovered, along symmetry on its transverse axis center line two sides, has through hole, and the two ends of hollow fiber film thread are vertically encapsulated in the inside of membrane module inner casing by sealing, and sealing is fixed on the place, upper and lower end face of membrane module inner casing;
Membrane module shell is hollow rectangular structure, on membrane module shell, have the wind exhausting outlet corresponding with the through hole of membrane module inner casing and air draft import, air draft import is connected with indoor filter, upper end has air intake near lateral location place, air intake is connected with outdoor filter, lower end has air outlet slit near position, another side, and air outlet slit is directly connected with indoor environment, and air intake and air outlet slit are distributed in the both sides of longitudinal axis center line; The size of membrane module inner casing is less than the size of membrane module shell, and the outer wall of membrane module inner casing is fixedly connected with the inwall of membrane module shell; The two ends up and down of membrane module inner casing and membrane module shell form upper and lower two cavitys; The two ends of hollow fiber film thread communicate with the cavity up and down of membrane module shell.
In the cavity up and down of membrane module shell, overhead gage and lower baffle plate are set, overhead gage is fixed in upper plenum, and near air intake from that side away from membrane module outer casing inner wall, lower baffle plate is fixed in lower cavity, and near air outlet slit from that side away from membrane module outer casing inner wall.
Between membrane module and indoor filter, air return pipeline is set, one end of air return pipeline is connected with air draft import, and the other end is connected with air outlet slit.
Described membrane module is cylindrical or rectangle, and the radical length of membrane module is 1 times～4 times of axial length.
The blast of described outdoor fan is 10kPa～30kPa and is normal pressure.
The course of work and principle:
1. the blast of outdoor fan is set as 10kPa and is normal pressure, outdoor fan is sent outdoor humid air into outdoor filter and is filtered out after impurity, by air intake, enter in the cavity in left side, membrane module inner casing upper end, under the effect of overhead gage, enter in the hollow fiber film thread in left side in membrane module inner casing, realize air-water separation, steam is tentatively selected to absorb and permeates;
2. air enters in the cavity in left side, membrane module inner casing lower end along the passage of hollow fiber film thread, and under the effect of lower baffle plate and gas pressure, air enters in hollow fiber film thread middle in membrane module inner casing subsequently, and steam is again selected to absorb and permeate;
3. air enters in the cavity on right side, membrane module inner casing upper end along the passage of middle hollow fiber film thread, under the effect of overhead gage and gas pressure, air finally enters in the hollow fiber film thread on right side in membrane module inner casing, steam is selected again to absorb and permeates, and last air blows out from air outlet slit;
4. the dry air blowing out is divided into two-way, one tunnel directly enters indoor, the air draft import that the indoor exhaust wind that another road is sent with indoor fan enters membrane module as sweep gas through air return pipeline after mixing, sweep gas is blown over the per-meate side of hollow fiber film thread equably, take away the steam infiltrating, and by wind exhausting outlet, be discharged to outdoor;
5. repeating step 1.～4., indoor humid air is constantly replaced, realize the dehumidifying to indoor environment.
Step 4. in the return air air quantity ratio that accounts for dry air air quantity be 10%～50%, indoor relative humidity can be down to below 30% by 90%, can be by regulating the ratio of return air control the humidity of indoor environment.
Beneficial effect:
1, the axial specific diameter of membrane module of the present invention is to short, sweep gas can purge the per-meate side of polymeric membrane sufficiently uniformly, effectively take away infiltration water steam, therefore this film dehumidifying component contact area is large, vapour lock is low, efficiency is high, can realize under the low pressure of 10kPa～30kPa and dehumidifying, thereby reduce the requirement to blower fan and pipeline.
2, the present invention adopt part dry air together with indoor exhaust wind as sweep gas by the per-meate side of hollow fiber film thread, the low humid gas of Wind Volume can be taken away rapidly infiltration water steam, reduces osmotic resistance, realizes the air dewetting under low pressure.In this flow process, charging equipment only has outdoor fan and indoor fan, and blast is low, simple in structure, without cold-producing medium and drier, has reduced the weight of system, has saved energy consumption; When indoor environment humidity is regulated and controled, only needing to control the flow of dry return air and indoor exhaust wind, is the indoor environment dehumanization method of a kind of simple in structure, easy to operate, efficient energy-saving, environmental protection.
Accompanying drawing explanation
Fig. 1 is the structure chart of Dehumidify device for indoor environment of the present invention.
Fig. 2 is the structure cutaway view of membrane module of the present invention.
In figure, 1-membrane module, 2-outdoor fan, the outdoor filter of 3-, 4-indoor fan, the indoor filter of 5-, 6-air return pipeline, 7-membrane module shell, 8-membrane module inner casing, 9-overhead gage, 10-hollow fiber film thread, 11-air intake, 12-air outlet slit, 13-air draft import, 14-wind exhausting outlet, 15-sealing, 16-lower baffle plate.
The specific embodiment
Below in conjunction with the accompanying drawing embodiment that develops simultaneously, describe the present invention.
Embodiment mono-
As shown in Figure 1 and Figure 2, the present invention includes membrane module 1, outdoor fan 2, outdoor filter 3, indoor fan 4, indoor filter 5, air return pipeline 6; Outdoor fan 2 is by outdoor filter 3 junctional membrane assemblies 1, and indoor fan 4 is by indoor filter 5 junctional membrane assemblies 1, and air return pipeline 6 is arranged between membrane module 1 and indoor filter 5.
Wherein membrane module 1 comprises membrane module shell 7, membrane module inner casing 8, overhead gage 9, lower baffle plate 16, hollow fiber film thread 10, sealing 15; The radical length of membrane module 1 is 2 times of axial length, membrane module inner casing 8 is the frame structure that upper and lower surface is uncovered, along symmetry on its transverse axis center line two sides, have through hole, the two ends of hollow fiber film thread 10 are vertically encapsulated in the inside of membrane module inner casing 8 by sealing 15, sealing 15 is fixed on the place, upper and lower end face of membrane module inner casing 8;
Membrane module shell 7 is hollow rectangular structure, on membrane module shell 7, have the wind exhausting outlet corresponding with the through hole of membrane module inner casing 8 14 and air draft import 13, air draft import 13 is connected with indoor filter 5, upper end has air intake 11 near lateral location place, air intake 11 is connected with outdoor filter 3, lower end has air outlet slit 12 near position, another side, and air outlet slit 12 is directly connected with indoor environment, and air intake 11 and air outlet slit 12 are distributed in the both sides of longitudinal axis center line; The size of membrane module inner casing 8 is less than the size of membrane module shell 7, and its outer wall is fixedly connected with the inwall of membrane module shell 7; The two ends up and down of membrane module inner casing 8 and membrane module shell 7 form upper and lower two cavitys; The two ends of hollow fiber film thread 10 communicate with the cavity up and down of membrane module shell 7.Overhead gage 9 is fixed in upper plenum, and near air intake 11 from that side away from the inwall of membrane module shell 7, lower baffle plate 16 is fixed in lower cavity, and near air outlet slit 12 from that side away from the inwall of membrane module shell 7.
Air return pipeline 6 one end are connected with air draft import 13, and the other end is connected with air outlet slit 12, make to be divided into two-way from air outlet slit 12 dry air out, and a road is directly led to outdoor, and another road is connected on the pipeline of air draft import 13 connections.
The course of work:
1. the blast of outdoor fan 2 is 10kPa and is normal pressure, outdoor fan 2 is sent outdoor humid air into outdoor filter 3 and is filtered out after impurity, by air intake 11, enter in the cavity in membrane module inner casing 8 left sides, upper end, under the effect of overhead gage 9, enter in the hollow fiber film thread 10 in membrane module inner casing 8 interior left sides, realize air-water separation, steam is tentatively selected to absorb and permeates;
2. air enters in the cavity in membrane module inner casing 8 left sides, lower end along the passage of hollow fiber film thread 10, under the effect of lower baffle plate 16 and gas pressure, air enters in the hollow fiber film thread 10 of membrane module inner casing 8 interior centres subsequently, and steam is again selected to absorb and permeate;
3. air enters in the cavity on membrane module inner casing 8 right sides, upper end along the passage of middle hollow fiber film thread 10, under the effect of overhead gage 9 and gas pressure, air finally enters in the hollow fiber film thread 10 on membrane module inner casing 8 interior right sides, steam is selected again to absorb and permeates, and last air blows out from air outlet slit 12;
4. the dry air blowing out is divided into two-way, one tunnel directly enters indoor, after the indoor exhaust wind that another road is sent with indoor fan 4 is mixed, the air draft import 13 that enters membrane module 1 through air return pipeline 6 as sweep gas, sweep gas is blown over the per-meate side of hollow fiber film thread 10 equably, take away the steam infiltrating, and be discharged to outdoor by wind exhausting outlet 14;
5. repeating step 1.～4., indoor humid air is constantly replaced, realize the dehumidifying to indoor environment.Circulate after 30 minutes, indoor relative humidity can be down to below 55% by 90%.
Embodiment bis-
The radical length of membrane module is 4 times of axial length, and the blast of outdoor fan is 30kPa and is normal pressure.The dry air blowing out from air outlet slit 12 is divided into two-way, one tunnel directly enters indoor, after the indoor exhaust wind that another road is sent with indoor fan 4 is mixed, the air draft import 13 that enters membrane module 1 through air return pipeline 6 as sweep gas, sweep gas can be blown over the per-meate side of hollow fiber film thread 10 equably, take away the steam infiltrating, and be discharged to outdoor by wind exhausting outlet 14.Circulate after 30 minutes, indoor relative humidity can be down to below 30% by 90%.
Claims (2)
1. a Dehumidify device for indoor environment, comprises membrane module (1), outdoor fan (2), outdoor filter (3), indoor fan (4), indoor filter (5), air return pipeline (6); Outdoor fan (2) is by outdoor filter (3) junctional membrane assembly (1), and indoor fan (4) is by indoor filter (5) junctional membrane assembly (1);
Wherein membrane module (1) comprises membrane module shell (7), membrane module inner casing (8), hollow fiber film thread (10), sealing (15); Membrane module inner casing (8) is the frame structure that upper and lower surface is uncovered, along symmetry on its transverse axis center line two sides, have through hole, the two ends of hollow fiber film thread (10) are vertically encapsulated in the inside of membrane module inner casing (8) by sealing (15), sealing (15) is fixed on the place, upper and lower end face of membrane module inner casing (8);
Membrane module shell (7) is hollow rectangular structure, on membrane module shell (7), have the wind exhausting outlet (14) corresponding with the through hole of membrane module inner casing (8) and air draft import (13), air draft import (13) is connected with indoor filter (5), upper end has air intake (11) near lateral location place, air intake (11) is connected with outdoor filter (3), lower end has air outlet slit (12) near position, another side, air outlet slit (12) is directly connected with indoor environment, air intake (11) and air outlet slit (12) are distributed in the both sides of longitudinal axis center line, the size of membrane module inner casing (8) is less than the size of membrane module shell (7), and the outer wall of membrane module inner casing (8) is fixedly connected with the inwall of membrane module shell (7), the two ends up and down of membrane module inner casing (8) and membrane module shell (7) form upper and lower two cavitys, the two ends of hollow fiber film thread (10) communicate with the cavity up and down of membrane module shell (7),
The radical length of described membrane module (1) is 1 times～4 times of axial length;
Overhead gage (9) and lower baffle plate (16) are set in the cavity up and down of membrane module shell (7), overhead gage (9) is fixed in upper plenum, and near air intake (11) from that side away from membrane module shell (7) inwall, lower baffle plate (16) is fixed in lower cavity, and near air outlet slit (12) from that side away from membrane module shell (7) inwall.
2. a kind of Dehumidify device for indoor environment as claimed in claim 1, it is characterized in that, between membrane module (1) and indoor filter (5), air return pipeline (6) is set, one end of air return pipeline (6) is connected with air draft import (13), and the other end is connected with air outlet slit (12).
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| CN201110266820.1A CN102430323B (en) | 2011-09-09 | 2011-09-09 | Dehumidify device for indoor environment |
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| CN201110266820.1A CN102430323B (en) | 2011-09-09 | 2011-09-09 | Dehumidify device for indoor environment |
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| CN102430323B true CN102430323B (en) | 2014-08-27 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103877834B (en) | 2012-12-20 | 2016-08-10 | 财团法人工业技术研究院 | Dehumidification system |
| TWI511774B (en) * | 2012-12-20 | 2015-12-11 | Ind Tech Res Inst | Dehumidification system |
| CN107560059A (en) * | 2016-07-01 | 2018-01-09 | 郭绍华 | A kind of double purification fresh airs of heat exchange using the main filter core of hollow-fibre membrane |
| CN109681983A (en) * | 2018-12-29 | 2019-04-26 | 中国船舶重工集团公司第七一八研究所 | One kind exempts from plus water damping purification device |
| CN110420570B (en) * | 2019-08-06 | 2024-08-13 | 天津工业大学 | Cuboid membrane module based on hollow fiber type non-woven fabric composite membrane in row |
| CN113750752A (en) * | 2021-09-09 | 2021-12-07 | 东莞理工学院 | Dehumidification system with high mass transfer efficiency |
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| CN1189392A (en) * | 1996-11-08 | 1998-08-05 | 气体产品与化学公司 | Hollow fiber membrane device with inert filaments randomly distributed in inter fiber video |
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