CN101275771B - Heat-reclaiming device of rotating wheel dehumidifier and thermal recovery method using the same - Google Patents
Heat-reclaiming device of rotating wheel dehumidifier and thermal recovery method using the same Download PDFInfo
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- CN101275771B CN101275771B CN2008100888807A CN200810088880A CN101275771B CN 101275771 B CN101275771 B CN 101275771B CN 2008100888807 A CN2008100888807 A CN 2008100888807A CN 200810088880 A CN200810088880 A CN 200810088880A CN 101275771 B CN101275771 B CN 101275771B
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- Prior art keywords
- radome
- desiccant wheel
- condenses
- air
- rotary dehumidifier
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- 238000011084 recovery Methods 0.000 title claims description 37
- 238000000034 method Methods 0.000 title claims description 12
- 239000002274 desiccant Substances 0.000 claims description 64
- 239000002918 waste heat Substances 0.000 claims description 40
- 239000000463 material Substances 0.000 claims description 9
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 230000001112 coagulating effect Effects 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 239000003230 hygroscopic agent Substances 0.000 description 21
- 230000008929 regeneration Effects 0.000 description 12
- 238000011069 regeneration method Methods 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000007669 thermal treatment Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000003906 humectant Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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Abstract
The present invention provides a heat-reclaiming device of a runner dehumidifier, which has a dehumidify runner, a shielding cover arranged at the both sides of the dehumidify runner, a blower fan and a air duct, the rotated dehumidify runner supports between the shielding covers, the blower fan communicated with the shielding cover by the air duct, the shielding cover covers the preheating zone, the heating zone and the heat-recovering zone of the dehumidify runner. The heat-reclaiming device of the runner dehumidifier of the invention uses the blower fan pumping airflow from the coagulating shielding cover and the heat-recovering shielding cover and discharging to the preheat shielding cover by the air duct to preheat the dehumidify runner, thereby the energy sources is saved greatly and the efficiency is also improved.
Description
Technical field
The present invention relates to filed of air conditioning, particularly a kind of heat reclamation device of rotary wheel dehumidifying and use the heat recovery method of this device.
Background technology
Rotary dehumidifier is to utilize surface applied that water vapour in the cellular desiccant wheel absorption surrounding air of hygroscopic agent and slowly rotation is arranged, and the runner after the moisture absorption is carried out the high temperature heating, so that hygroscopic agent dehydration regeneration, to reach the purpose that continues dehumidifying.Regenerative heater in the existing rotary dehumidifier all need consume lot of energy and come runner is heated, so that the moisture that adsorbs in runner vaporization.Usually, understand some heat energy that is used for heating runner, wasted a large amount of heat energy thus along with the air that carried out after the dehumidification treatments is discharged in the atmosphere together.Thereby regeneration energy consumption height is the existing ubiquitous shortcoming of rotary dehumidifier.
Disclose a kind of energy-conservation rotary dehumidifier among the CN 97203366.1, this dehumidifier has heat reclaim unit.The operation principle of this heat reclamation device is: the regeneration air at rotary dehumidifier advances, in the exhausting duct, the air heat exchanger that sheet metal is made is housed.When the advancing of regeneration air, air draft air-flow during respectively through two groups in this heat exchanger passages that are staggered and isolate mutually, exchange heat will take place.Wherein, carry out heat exchange between hot and humid air draft and low temperature air intake, discharge sensible heat amount (heat that air itself carries) earlier, condensation continues to discharge latent heat amount (heat that water vapor condensation discharges) because steam temperature reduces again.These heats (sensible heat amount and latent heat amount) are all reclaimed by air heat exchanger and are used for the air intake air-flow of regeneration air is carried out preheating, improve EAT, thereby reduce the power and the energy consumption of regenerated air heater, reach energy-conservation purpose.
The weak point of this heat reclamation device is, carry out heat exchange fully in order to make between air intake air-flow and the air draft air-flow, heat exchanger need have the hot switching path of sufficient length and area, makes that the volume of whole rotary dehumidifier is bigger, has taken bigger area and space.
Summary of the invention
The exhaust heat recovering method that the objective of the invention is to a kind of rotary dehumidifier, utilize the heat that discharges when treating the liquefaction of moisture content in the dehumidified air in water recovery heat, the hygroscopic agent regenerative process and to residuing in waste heat on the desiccant wheel after the hygroscopic agent regeneration, the part of handling is carried out preheating and heating to waiting on the desiccant wheel to regenerate, thereby make full use of waste heat, save the energy significantly and raise the efficiency.
For achieving the above object, the invention provides a kind of exhaust heat recovering method that is used for rotary dehumidifier, comprising:
(1) with the both sides of radome it is covered from desiccant wheel;
(2) extract out with will flow through the condense air of the part that covered in radome inside, the radome of blower fan, deliver to then in other spaces of sealing by radome.
Cover the fan section that is 270 ° of segment angles on the desiccant wheel at most according to radome of the present invention.In addition, by the air extraction of the waste heat recovery radome institute cover part that is positioned at the regional downstream that the radome that condenses covers, send into the zone that is covered by the preheating radome that is positioned at the radome upstream side that condenses on the desiccant wheel on the inner and desiccant wheel of the radome that condenses flowing through.
In order to realize purpose of the present invention, the invention provides a kind of heat reclamation device that is used for rotary dehumidifier, this device comprises: the desiccant wheel that is supported rotationally, the hollow first and second that relatively is arranged at described desiccant wheel both sides and is communicated with the each other radome that condenses, be located at the sidepiece of desiccant wheel and the waste heat recovery radome that links to each other with the air inlet of described blower fan through described air channel, blower fan and air channel, the air inlet of described blower fan is by the corresponding inlet scoop on described air channel and the described radome, the air outlet of described blower fan through described air channel the upstream side to described desiccant wheel along direction of rotation blow.
According to the present invention. also have be located at described desiccant wheel sidepiece and with the preheating radome that links to each other with described fan outlet through described air channel.
Described waste heat recovery radome and described preheating radome are located at the same side of described desiccant wheel.
The described radome that condenses, waste heat recovery radome and preheating radome respectively cover the fan section that is 90 ° of segment angles on the desiccant wheel.
The described radome that condenses is made by the good material of thermal conductivity.
Described preheating radome is made by the good material of thermal insulation.
Described waste heat recovery radome is made by the good material of thermal insulation.
First and second condense is communicated with by linker between radome.
Described first downstream of condensing on the radome by the direction of rotation of desiccant wheel is provided with air inlet.
The method according to this invention is all fully collected the nearly all waste heat that is used in the desiccant wheel hygroscopic agent is carried out area heated and follows waste heat recovery district thereafter, is transported to then in the preheating zone of desiccant wheel desiccant wheel is carried out preheating.Therefore had higher temperature when desiccant wheel enters the thermal treatment zone, the heater of rotary dehumidifier only need produce less relatively heat, and just desiccant wheel to be elevated to temperature required.Thereby save the energy significantly and raise the efficiency.
Description of drawings
Fig. 1 is a heat reclamation device perspective view of the present invention.
The specific embodiment
Fig. 1 shows heat reclamation device of the present invention, and this device has desiccant wheel 1 and is arranged at first of described desiccant wheel 1 both sides condense radome 2a, second condense radome 2b, waste heat recovery radome 3 and preheating radome 4.Driving described desiccant wheel 1 by the motor (not shown) rotates.It is 90 ° fan-shaped part that desiccant wheel 1 is separated into four identical central angles by the partition frame that does not have in detail expression among the figure.Respectively be provided with the hygroscopic agent carrier that independently is coated with hygroscopic agent, for example heat tape, sponge grease, non-metal frame etc. in the described fan-shaped part.In addition, below for convenience of description, first radome 2a and the second radome 2b that condenses that condenses is referred to as the radome 2 that condenses.
In the present embodiment, it is 90 ° sector region that the radome 2 that condenses, waste heat recovery radome 3 and preheating radome 4 cover on the desiccant wheel 1 central angle respectively, and different radome correspondences functional areas different on the desiccant wheel 1.In the present embodiment, the radome 2 corresponding thermal regeneration districts of condensing, waste heat recovery radome 3 corresponding waste heat recovery districts, preheating radome 4 corresponding preheating zones.
In addition, the arrangement mode of this radome 2 that condenses, waste heat recovery radome 3 and preheating radome 4 is, rotation direction along desiccant wheel 1, this radome 2 that condenses is positioned at the upstream side of waste heat recovery radome 3, waste heat recovery radome 3 is positioned at the upstream side of preheating radome 4, and, be close between these radomes 2,3,4.
Below, describe the set-up mode of above-mentioned each radome 2,3,4 in detail.
In addition, condense between the radome 2 at two, also be provided with the linker 11 of a bilayer between part, be used to be communicated with two sandwich passage of condensing radome 2a, 2b, thereby form a complete enclosure space between radome 2 and the linker condensing by the excircle of desiccant wheel 1.In other words, air can enter first sandwich passage of condensing radome 2a through first air inlet that condenses on the radome 2a, pass through linker 11 then, flow into second sandwich passage of condensing radome 2b, flow out through being located at the second radome inlet scoop 9 of condensing of condensing on the radome 2b then.In addition, linker 11 and above-mentioned radome 2 form fit of condensing.
In addition, waste heat recovery radome 3 covers on the desiccant wheel 1 90 ° sector region from a side of desiccant wheel 1, forms the waste heat recovery district.Present embodiment reclaims desiccant wheel 1 in this waste heat recovery district waste heat and steam liquefaction discharge heat.As shown in the figure, waste heat recovery radome 3 is provided with a waste heat recovery radome inlet scoop 10.
It is 90 ° sector region that preheating radome 4 covers central angle on the desiccant wheel 1 from a side of desiccant wheel 1, forms the preheating zone.In this preheating zone desiccant wheel 1 is carried out preheating.In addition, preheating radome 4 has a preheating radome air inlet 12.As shown in Figure 1, condense radome inlet scoop 9, waste heat recovery radome inlet scoop 10 and preheating radome air inlet 12 is positioned at the same side of desiccant wheel 1.
The air inlet of blower fan 13 links to each other with waste heat recovery radome inlet scoop 10 with the radome inlet scoop 9 of condensing by air channel (schematically showing with arrow among the figure); The air outlet of blower fan 13 also is to link to each other with preheating radome air inlet 12 on the preheating radome 4 by the air channel that schematically illustrates with arrow among the figure.
In the present embodiment, a side of runner is made and be positioned to waste heat recovery radome 3 and preheating radome 4 by heat-barrier material, and the radome 2 that condenses is to be made by the good material of thermal conductivity.In addition, the radome 2 that condenses can have the material that reduces thermal-radiating effect and makes.
Below in conjunction with Fig. 1 the operation principle of rotary dehumidifier heat reclamation device of the present invention is described.
As in the present embodiment, shown in Figure 1, when rotary dehumidifier was worked, motor-driven desiccant wheel 1 rotated with uniform rotation or with batch (-type) ground.At gas to be dried when arrow a direction is passed desiccant wheel 1 in figure, its part is passed sector region 5 on the desiccant wheel 1, another part passes the sector region that waste heat recovery radome 3 covers on the desiccant wheel 1, in addition, also have a spot of gas to be dried to enter into first and condense in the radome 2a through being located at first condense the not shown air inlet on the radome 2a.Wherein, sector region 5 is meant on the desiccant wheel 1 sector region that conductively-closed cover 2,3,4 not covers.At this moment, in air to be dried and desiccant wheel 1, be coated on after hygroscopic agent on the hygroscopic agent carrier fully contacts.Air to be dried become fully contacting and be removed wherein moisture content with hygroscopic agent handle air after, by opposite side discharge from desiccant wheel 1.
In addition, the air of processing that passes waste heat recovery radome 3 overlay areas enters waste heat recovery radome inlet scoop 10, the air of processing that passes sector region 5 is sent to outside the dehumidifier, in addition, enter first pending air in radome 2a air inlet linker 11, the second radome 2b that condenses that flows through that condenses, flow out from this second radome inlet scoop 9 of condensing of condensing on the radome 2b then.That is, air flows in condense radome 2 and linker 11 with the order of arrow c-d-e-f-g-h in scheming.Then, the inlet scoop 10 of air from waste heat recovery radome 3 flowed out with the radome inlet scoop 9 of condensing and mixed not shown air channel, then by blower fan 13, deliver to preheating radome air inlet 12 through the air channel, to desiccant wheel 1 air-supply that covers by preheating radome 4, the desiccant wheel 1 of this part of preheating.
In addition, the origin of heat that is sent to the hot blast of waste heat radome 4 from blower fan 13 comprises following three parts: when air to be dried when the runner, steam is wherein adsorbed by runner and when liquefying, the heat of condensation that discharges in the liquefaction process of water; After in first and second condenses radome 2, desiccant wheel 1 being heated, when this heated part forwards waste heat recovery radome 3 to, residual waste heat on it; The heat that on the steam that hygroscopic agent regeneration the time is produced is condensing the internal layer inner surface of radome 2, is condensing and discharged when being filled with water.
In the radome 2 that condenses, by the hygroscopic agent carrier being carried out heating from inside to outside.Here, so-calledly from inside to outside be meant: the direction of pointing to the part that hygroscopic agent contacts with outside air from the part that contacts between hygroscopic agent and hygroscopic agent carrier.The advantage of this mode of heating is that energy loss is very little, and nearly all heat all is used to hygroscopic agent is heated.
In said process, steam condenses that the heat of condensation that discharged, runner waste heat in the waste heat recovery radome 3 and water in air part to be dried are absorbed by hygroscopic agent and discharge when liquefying these three kinds of heats of the heat of condensation are all flowed through wherein or gas around it absorbs at radome 2 inner surfaces that condense, and this gas that has absorbed above-mentioned heat is transported in the pre-radome 4 through blower fan 13, preheats thereby the desiccant wheel that is about to change over to the preheating zone is partly reached wherein adsorbed moisture.Like this, when entering the thermal treatment zone through the preheating zone preheating, desiccant wheel 1 had higher temperature.Therefore, when the hygroscopic agent on the desiccant wheel being regenerated, only need to produce a less relatively heat and just can make the temperature required of hygroscopic agent rising in the thermal regeneration district.Therefore, can reduce the consumption of energy.
In addition, in the above-mentioned embodiment, sector region is that central angle is 90 ° zone, but is not limited to this, also desiccant wheel can be carried out the five equilibrium more than 2 five equilibriums, or only desiccant wheel is divided into the sector region more than 2.At this moment, can reduce the size of each radome correspondingly.
Claims (12)
1. heat reclamation device that is used for rotary dehumidifier, it is characterized in that, comprise the desiccant wheel (1) that is supported rotationally, the bilayer first and second that relatively is arranged at described desiccant wheel (1) both sides and the is communicated with each other radome (2a that condenses, 2b), blower fan (13), the air channel, be located at the sidepiece of desiccant wheel (1) and the waste heat recovery radome (3) that links to each other with the air inlet of described blower fan (13) through described air channel, the air inlet of described blower fan (13) links to each other by the corresponding inlet scoop (9) on described air channel and the described radome (2b), the air outlet of described blower fan (13) through described air channel the upstream side to described desiccant wheel (1) along direction of rotation blow.
2. rotary dehumidifier heat reclamation device according to claim 1 is characterized in that, also has the preheating radome (4) of being located at described desiccant wheel (1) sidepiece and linking to each other with described fan outlet through described air channel.
3. rotary dehumidifier heat reclamation device according to claim 2 is characterized in that, described waste heat recovery radome (3) and described preheating radome (4) are located at the same side of described desiccant wheel (1).
4. rotary dehumidifier heat reclamation device according to claim 2, it is characterized in that, described first and second radomes (2a, 2b) that condense are referred to as the radome that condenses (2), and this radome that condenses (2), waste heat recovery radome (3) and preheating radome (4) respectively cover the fan section that is 90 ° of segment angles on the desiccant wheel (1).
5. according to any described rotary dehumidifier heat reclamation device of claim 2～4, it is characterized in that described preheating radome (4) is made by the good material of thermal insulation.
6. according to any described rotary dehumidifier heat reclamation device of claim 2～4, it is characterized in that described waste heat recovery radome (3) is made by the good material of thermal insulation.
7. according to any described rotary dehumidifier heat reclamation device of claim 1～4, it is characterized in that, described first and second radomes (2a, 2b) that condense are referred to as the radome that condenses (2), and the described radome that condenses (2) is made by the good material of thermal conductivity.
8. according to any described rotary dehumidifier heat reclamation device of claim 1～4, it is characterized in that first and second condense is communicated with by linker (11) between radome (2a, 2b).
9. rotary dehumidifier heat reclamation device according to claim 1 is characterized in that, described first condenses, and downstream that radome (2a) goes up by the direction of rotation of desiccant wheel (1) is provided with air inlet.
10. exhaust heat recovering method that is used for rotary dehumidifier comprises:
(1) with the both sides of radome (2,3,4) it is covered from desiccant wheel (1);
(2) will flow through with blower fan (13) air of the part of condensing that radome (2) is inner, being covered in the radome (3 or 4) is extracted out, delivers to then in other spaces of being sealed by radome (3 or 4).
11. ask 10 described methods, it is characterized in that described radome (2,3,4) covers the fan section that is 270 ° of segment angles on the desiccant wheel (1) at most as right.
12. ask 10 or 11 described methods as right, it is characterized in that, inner and the desiccant wheel (1) of radome (2) that condenses of will flowing through is gone up by the air of waste heat recovery radome (3) the institute cover part that is positioned at the regional downstream that the radome that condenses (2) covers and is extracted out, sends into the zone that desiccant wheel (1) is upward covered by the preheating radome (4) that is positioned at the radome that condenses (2) upstream side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100888807A CN101275771B (en) | 2008-04-02 | 2008-04-02 | Heat-reclaiming device of rotating wheel dehumidifier and thermal recovery method using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100888807A CN101275771B (en) | 2008-04-02 | 2008-04-02 | Heat-reclaiming device of rotating wheel dehumidifier and thermal recovery method using the same |
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| Publication Number | Publication Date |
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| CN101275771A CN101275771A (en) | 2008-10-01 |
| CN101275771B true CN101275771B (en) | 2010-06-16 |
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| CN2008100888807A Expired - Fee Related CN101275771B (en) | 2008-04-02 | 2008-04-02 | Heat-reclaiming device of rotating wheel dehumidifier and thermal recovery method using the same |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101822934B (en) * | 2010-02-01 | 2012-05-23 | 北京亚都空气污染治理技术有限公司 | Air channel structure and air conditioning equipment with same |
| CN103712321B (en) * | 2013-12-03 | 2016-05-25 | 无锡罗特新风技术有限公司 | A kind of processing technology of runner heat reclamation device |
| CN104731123B (en) * | 2013-12-24 | 2018-08-17 | 南京中兴新软件有限责任公司 | Cool-down dehumidification processing method, device and the mobile terminal of mobile terminal |
| CN109869734B (en) * | 2017-12-04 | 2020-05-12 | 清华大学 | Flue gas waste heat degree of depth recovery system |
| CN110131993A (en) * | 2019-05-31 | 2019-08-16 | 河南憧椽商贸有限公司 | A kind of pre-processing device of raw-food material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2300029Y (en) * | 1997-04-14 | 1998-12-09 | 刘宗源 | Energy-saving rotary wheel dehumidifier |
| JP2003329269A (en) * | 2002-05-10 | 2003-11-19 | Kankyo Co Ltd | Dehumidifier |
-
2008
- 2008-04-02 CN CN2008100888807A patent/CN101275771B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2300029Y (en) * | 1997-04-14 | 1998-12-09 | 刘宗源 | Energy-saving rotary wheel dehumidifier |
| JP2003329269A (en) * | 2002-05-10 | 2003-11-19 | Kankyo Co Ltd | Dehumidifier |
| CN1666068A (en) * | 2002-05-10 | 2005-09-07 | 株式会社康友 | Dehumidifier |
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Assignee: Beijing YADU air purification technology Co.,Ltd. Assignor: Beijing Yadu Air Pollution Improvement Technology Co.,Ltd. Contract record no.: 2010990000779 Denomination of invention: Heat-reclaiming device of rotating wheel dehumidifier and thermal recovery method using the same Granted publication date: 20100616 License type: Exclusive License Open date: 20081001 Record date: 20100925 |
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Address after: Wuzhong District Suzhou city Jiangsu province 215128 Bridge Road No. 111 Patentee after: YADU TECHNOLOGY GROUP CO.,LTD. Address before: Su Fu Lu Guangfu town Suzhou city Jiangsu province 215159 No. 18-2 Patentee before: SUZHOU YADU ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
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