CN102430323A - Dehumidify device for indoor environment - Google Patents
Dehumidify device for indoor environment Download PDFInfo
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- CN102430323A CN102430323A CN2011102668201A CN201110266820A CN102430323A CN 102430323 A CN102430323 A CN 102430323A CN 2011102668201 A CN2011102668201 A CN 2011102668201A CN 201110266820 A CN201110266820 A CN 201110266820A CN 102430323 A CN102430323 A CN 102430323A
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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 indoor environment dehydrating unit, belong to film dehumidifying technology field.
Background technology
Along with the raising of rapid economy development and people's living standard, people are increasingly high to environment requirement such as production, lives.Relative humidity is one of important parameter of environmental project.The excessive living environment that not only influences people of air humidity, and can influence some machining process in preservation and the commercial production of material.Therefore, people must take effective measures and 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 attention.At present, indoor environment dehumidification mode commonly used is freezing type and absorption type, the weak point of freezing type dehumidifying be it to receive the water freezing temperature be 0 ℃ restriction, its outlet dew-point temperature is limited in scope, and used cold-producing medium also causes environmental pollution easily; The weak point of absorption type dehumidifying is the equipment bulky complex, and not only various valve pipe fitting damages easily, cause stabilization of equipment performance to descend, and energy consumption is higher.
The film dehumidifying technology is a kind of novel dehumidifying technology that grows up nearly decades; It is a medium with the polymeric membrane, utilizes its height to steam to select permeability, and driving forces such as difference press in the film both sides; Make water vapour molecule penetrated preferably in film, reach the purpose that water-gas separates.It and freeze drying technology and adsorption and dehumidification compared with techniques, have pollution-free, energy consumption is low, equipment is simple to operation, dry gas is promptly opened the characteristics that promptly get, and is widely used in the field that need dehumidify to compressed gas.
Known polymeric membrane air dehumidifier is a single layer structure, and radical length is far smaller than axial length, the film silk directly and housing be packaged together, this type of membrane dehumidifier vapour lock is bigger, sweep gas can not evenly be taken away the infiltration water steam effectively.In addition, known membrane dehumidifier all is to be used for need uniting other dehumidifying technologies when the Compressed Gas dehumidifying perhaps is used for indoor dehumidification, does not see the dehumidifying that is applied independently in low pressure (pressure is lower than 100kPa) air.Patent CN101687138A discloses a kind of hollow fiber membrane dehydrating unit of miniaturization, and this device is mainly used in removes the moisture that radgas discarded object of in atomic power station, producing etc. is contained; 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 to realize the cooling and the adjusting of air; But weak point is to need to use air compressor; And need to combine the vaporation-type cooling technology, and complex equipments, energy consumption is higher; Patent CN 101881490A discloses a kind of high-pressure dehumidifying formula novel aircraft environmental control system of using membrane module; It dehumidifies through the pressure-air of membrane module to two-wheeled boost type high pressure water separation regenerative air cycle cooling system system blower outlet; And with the air-to-air total heat exchanger use of membrane module as dehumidifying/heat exchange; The weak point of this invention is to be applicable to that aircraft etc. itself has the occasion of high-pressure system, otherwise needs supercharging equipment that air inlet is pressurizeed; Patent CN 1605806A discloses based on the compound dehumanization method of film and equipment and application; It is characterized in that air and indoor exhaust wind are carried out damp and hot exchange through film; Carry out degree of depth dehumidifying through the secondary dehydrating unit again; The weak point of this invention is to need to combine compression freeze drying device or liquid absorption dehumidifying device or rotary dehumidifier to carry out the secondary dehumidifying on the basis of film dehumidifying technology, complex equipments, and energy consumption is higher.
Summary of the invention
In view of this; The objective of the invention is to; Bigger to membrane module structure resistance in the existing film dehumidifying technology; Purge uneven shortcoming, and need combine other dehumidifying technologies when only can be used for Compressed Gas dehumidifying or being used for the surrounding air dehumidifying and cause the weak point of complex equipments, provide that a kind of contact area is big, vapour lock is low, can be used for 10kPa～the novel high polymer membrane dehumidifier of 30kPa low-pressure air dehumidifying.
A kind of indoor environment dehydrating unit comprises: membrane module, outdoor fan, outdoor filter, indoor fan, indoor filter, return air pipeline; Outdoor fan is through outdoor filter junctional membrane assembly, and indoor fan is through indoor filter junctional membrane assembly;
Wherein membrane module comprises membrane module shell, membrane module inner casing, hollow-fibre membrane silk, sealing; The membrane module inner casing is the uncovered frame structure of upper and lower surface, has through hole along symmetry on its transverse axis center line two sides, and the two ends of hollow-fibre membrane silk vertically are encapsulated in the inside of membrane module inner casing through sealing, and sealing is fixed on the place, upper and lower end face of membrane module inner casing;
The membrane module shell is the hollow rectangular structure; Have wind exhausting outlet corresponding with the through hole of membrane module inner casing and air draft import on the membrane module shell, the air draft import links to each other with indoor filter, and the upper end has air intake near the lateral location place; Air intake links to each other with outdoor filter; The lower end has air outlet slit near the position, another side, and air outlet slit directly links to each other 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 two cavitys up and down; The two ends of hollow-fibre membrane silk 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 the upper plenum; And near air intake from membrane module outer casing inner wall that side far away, lower baffle plate is fixed on down in the cavity, and leaves membrane module outer casing inner wall that side far away near air outlet slit.
Between membrane module and indoor filter, the return air pipeline is set, an end of return air pipeline links to each other with the air draft import, and the other end links to each other with air outlet slit.
Said 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 at 10kPa and is normal pressure; After outdoor fan is sent into outdoor humid air outdoor filter and is filtered out impurity; Get into through air intake in the cavity in left side, membrane module inner casing upper end; Under the effect of overhead gage, get in the hollow-fibre membrane silk in left side in the membrane module inner casing, realize that air-water separates, steam tentatively is selected and absorbs and infiltration;
2. air gets in the cavity in left side, membrane module inner casing lower end along the passage of hollow-fibre membrane silk, and under the effect of lower baffle plate and gas pressure, in the hollow-fibre membrane silk in the middle of air gets in the membrane module inner casing subsequently, steam is selected once more and absorbs and infiltration;
3. air gets in the cavity on right side, membrane module inner casing upper end along the passage of middle hollow-fibre membrane silk; Under the effect of overhead gage and gas pressure; Air gets in the hollow-fibre membrane silk on right side in the membrane module inner casing at last; Steam is selected again and absorbs and infiltration, and last air blows out from air outlet slit;
4. the dry air that blows out is divided into two-way; In the one tunnel direct inlet chamber; The back gets into membrane module through the return air pipeline as sweep gas air draft import is mixed on another road with the indoor exhaust wind that indoor fan is seen off; Sweep gas is blown over the per-meate side of hollow-fibre membrane silk equably, takes away the steam that infiltrates, and is discharged to outdoor through wind exhausting outlet;
5. 1.～4. repeating step constantly replaces indoor humid air, realizes the dehumidifying to indoor environment.
Step 4. in the return air air quantity ratio that accounts for the dry air air quantity be 10%～50%, indoor relative humidity can be reduced to below 30% by 90%, can control the humidity of indoor environment through the ratio of regulating return air.
Beneficial effect:
1, the axial specific diameter of membrane module of the present invention is to weak point; Sweep gas can purge the per-meate side of polymeric membrane full and uniformly; Take away the infiltration water steam effectively, so this film dehumidifying assembly contact area is big, vapour lock is low, efficient is high; Can be implemented under the low pressure of 10kPa～30kPa and dehumidify, thereby reduce requirement blower fan and pipeline.
2, the present invention adopt the part dry air with indoor exhaust wind as the per-meate side of sweep gas through the hollow-fibre membrane silk, the low humid gas of big air quantity can be taken away the infiltration water steam rapidly, reduces osmotic resistance, realizes the air dewetting under the low pressure.Charging equipment has only outdoor fan and indoor fan in this flow process, and blast is low, and is simple in structure, need not cold-producing medium and drier, reduced the weight of system, saved energy consumption; When indoor environment humidity is regulated and control, only needing the flow of dry return air of control and indoor exhaust wind to get final product, is the indoor environment dehumanization method of a kind of simple in structure, easy to operate, efficient energy-saving, environmental protection.
Description of drawings
Fig. 1 is the structure chart of indoor environment dehydrating unit of the present invention.
Fig. 2 is the structure cutaway view of membrane module of the present invention.
Among the figure, 1-membrane module, 2-outdoor fan, the outdoor filter of 3-, 4-indoor fan, the indoor filter of 5-, 6-return air pipeline, 7-membrane module shell, 8-membrane module inner casing, 9-overhead gage, 10-hollow-fibre membrane silk, 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 one
Like Fig. 1, shown in Figure 2, the present invention includes membrane module 1, outdoor fan 2, outdoor filter 3, indoor fan 4, indoor filter 5, return air pipeline 6; Outdoor fan 2 is through outdoor filter 3 junctional membrane assemblies 1, and indoor fan 4 is through indoor filter 5 junctional membrane assemblies 1, and return air pipeline 6 is arranged between membrane module 1 and the 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-fibre membrane silk 10, sealing 15; The radical length of membrane module 1 is 2 times of axial length; Membrane module inner casing 8 is the uncovered frame structure of upper and lower surface; Have through hole along symmetry on its transverse axis center line two sides; The two ends of hollow-fibre membrane silk 10 vertically are encapsulated in the inside of membrane module inner casing 8 through sealing 15, and sealing 15 is fixed on the place, upper and lower end face of membrane module inner casing 8;
Return air pipeline 6 one ends link to each other with air draft import 13, and the other end links to each other with air outlet slit 12, make the dry air that comes out from air outlet slit 12 be divided into two-way, and one the tunnel directly leads to outdoorly, and another road is connected on the pipeline that air draft import 13 is communicated with.
The course of work:
1. the blast of outdoor fan 2 is 10kPa and is normal pressure; After outdoor fan 2 is sent into outdoor humid air outdoor filter 3 and is filtered out impurity; Get into through air intake 11 in the cavity in left side, membrane module inner casing 8 upper ends; Under the effect of overhead gage 9, get in the hollow-fibre membrane silk 10 in left side in the membrane module inner casing 8, realize that air-water separates, steam tentatively is selected and absorbs and infiltration;
2. air gets in the cavity in left side, membrane module inner casing 8 lower ends along the passage of hollow-fibre membrane silk 10; Under the effect of lower baffle plate 16 and gas pressure; In the hollow-fibre membrane silk 10 in the middle of air gets in the membrane module inner casing 8 subsequently, steam is selected once more and absorbs and infiltration;
3. air gets in the cavity on right side, membrane module inner casing 8 upper end along the passage of middle hollow-fibre membrane silk 10; Under the effect of overhead gage 9 and gas pressure; Air gets in the hollow-fibre membrane silk 10 on right side in the membrane module inner casing 8 at last; Steam is selected again and absorbs and infiltration, and last air blows out from air outlet slit 12;
4. the dry air that blows out is divided into two-way; In the one tunnel direct inlet chamber; Another road is with after the indoor exhaust wind that indoor fan 4 is seen off is mixed, and as the air draft import 13 that sweep gas gets into membrane modules 1 through return air pipeline 6, sweep gas is blown over the per-meate side of hollow-fibre membrane silk 10 equably; Take away the steam that infiltrates, and be discharged to outdoor through wind exhausting outlet 14;
5. 1.～4. repeating step constantly replaces indoor humid air, realizes the dehumidifying to indoor environment.Circulate after 30 minutes, indoor relative humidity can be reduced to below 55% by 90%.
Embodiment two
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 that blows out from air outlet slit 12 is divided into two-way; In the one tunnel direct inlet chamber; Another road is with after the indoor exhaust wind that indoor fan 4 is seen off is mixed, and as the air draft import 13 that sweep gas gets into membrane modules 1 through return air pipeline 6, sweep gas can be blown over the per-meate side of hollow-fibre membrane silk 10 equably; Take away the steam that infiltrates, and be discharged to outdoor through wind exhausting outlet 14.Circulate after 30 minutes, indoor relative humidity can be reduced to below 30% by 90%.
Claims (5)
1. an indoor environment dehydrating unit comprises membrane module (1), outdoor fan (2), outdoor filter (3), indoor fan (4), indoor filter (5), return air pipeline (6); Outdoor fan (2) is through outdoor filter (3) junctional membrane assembly (1), and indoor fan (4) is through indoor filter (5) junctional membrane assembly (1);
Wherein membrane module (1) comprises membrane module shell (7), membrane module inner casing (8), hollow-fibre membrane silk (10), sealing (15); Membrane module inner casing (8) is the uncovered frame structure of upper and lower surface; Have through hole along symmetry on its transverse axis center line two sides; The two ends of hollow-fibre membrane silk (10) vertically are encapsulated in the inside of membrane module inner casing (8) through sealing (15), and sealing (15) is fixed on the place, upper and lower end face of membrane module inner casing (8);
Membrane module shell (7) is the hollow rectangular structure; Have wind exhausting outlet (14) corresponding and air draft import (13) on the membrane module shell (7) with the through hole of membrane module inner casing (8); Air draft import (13) links to each other with indoor filter (5); The upper end has air intake (11) near the lateral location place, and air intake (11) links to each other with outdoor filter (3), and the lower end has air outlet slit (12) near the position, another side; Air outlet slit (12) directly links to each other 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 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 two cavitys up and down; The two ends of hollow-fibre membrane silk (10) communicate with the cavity up and down of membrane module shell (7).
2. a kind of indoor environment dehydrating unit as claimed in claim 1; It is characterized in that; Overhead gage (9) and lower baffle plate (16) are set in the cavity up and down of membrane module shell (7), and overhead gage (9) is fixed in the upper plenum, and leaves membrane module shell (7) inwall that side far away near air intake (11); Lower baffle plate (16) is fixed on down in the cavity, and leaves membrane module shell (7) inwall that side far away near air outlet slit (12).
3. a kind of indoor environment dehydrating unit as claimed in claim 1 is characterized in that said membrane module (1) is cylindrical or rectangle.
4. a kind of indoor environment dehydrating unit as claimed in claim 1, the radical length that it is characterized in that said membrane module (1) are 1 times～4 times of axial length.
5. a kind of indoor environment dehydrating unit as claimed in claim 1 is characterized in that between membrane module (1) and indoor filter (5), return air pipeline (6) being set, and an end of return air pipeline (6) links to each other with air draft import (13), and the other end links to each other with air outlet slit (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110266820.1A CN102430323B (en) | 2011-09-09 | 2011-09-09 | Dehumidify device for indoor environment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110266820.1A CN102430323B (en) | 2011-09-09 | 2011-09-09 | Dehumidify device for indoor environment |
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| CN102430323A true CN102430323A (en) | 2012-05-02 |
| CN102430323B CN102430323B (en) | 2014-08-27 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI511774B (en) * | 2012-12-20 | 2015-12-11 | Ind Tech Res Inst | Dehumidification system |
| US9815020B2 (en) | 2012-12-20 | 2017-11-14 | Industrial Technology Reserach Institute | 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 |
| CN110420570A (en) * | 2019-08-06 | 2019-11-08 | 天津工业大学 | A kind of cuboid membrane module based on townhouse hollow fiber form nonwoven fabrics composite film |
| 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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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI511774B (en) * | 2012-12-20 | 2015-12-11 | Ind Tech Res Inst | Dehumidification system |
| US9815020B2 (en) | 2012-12-20 | 2017-11-14 | Industrial Technology Reserach Institute | 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 |
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| CN110420570A (en) * | 2019-08-06 | 2019-11-08 | 天津工业大学 | A kind of cuboid membrane module based on townhouse hollow fiber form nonwoven fabrics composite film |
| 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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| CN102430323B (en) | 2014-08-27 |
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