CN201244432Y - Packing tower for eliminating air moisture - Google Patents
Packing tower for eliminating air moisture Download PDFInfo
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- CN201244432Y CN201244432Y CNU2008200586022U CN200820058602U CN201244432Y CN 201244432 Y CN201244432 Y CN 201244432Y CN U2008200586022 U CNU2008200586022 U CN U2008200586022U CN 200820058602 U CN200820058602 U CN 200820058602U CN 201244432 Y CN201244432 Y CN 201244432Y
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- dehumidifying
- padding
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Abstract
The utility model relates to a packing tower for dehumidifying air. A dehumidifying tower comprises an air drying layer, a foam destroyer, a liquid distributor, padding and an air layer to be treated sequentially from top to bottom. A regeneration tower comprises an air discharging layer, a foam destroyer, a liquid distributor, padding and an inlet air layer from top to bottom. An upper layer of padding and a lower layer of padding are arranged between the liquid distributor and the air layer to be treated of the dehumidifying tower; a cooling coil is arranged between the upper and the lower layers of padding; a cooling water inlet and a cooling water outlet of the cooling coil are arranged on a lateral wall of the dehumidifying tower and are connected with a cooling device through a pipeline; an upper layer of padding and a lower layer of padding are arranged between the liquid distributor and the air layer to be treated of the regeneration tower; a heating coil is arranged between the upper and the lower layers of padding; and a hot water inlet and a hot water outlet of the heating coil are arranged on a lateral wall of the regeneration tower and are connected with a heater through a pipeline. The structure of the packing tower avoids the continuous temperature rising of dehumidifying solution and the continuous temperature reduction of regeneration solution and improves the mean pressure difference of mass transfer so as to remarkably improve the dehumidifying effect and the regeneration effect.
Description
Technical field
The utility model relates to a kind of air dewetting packed tower that is used for Refrigeration ﹠ Air-Conditioning engineering field, is the technological improvement to existing heat insulation-type packed tower and internally cooled packed tower.
Background technology
In liquid dehumidifying air-conditioning system, regenerative device of solution and air dehumidifier are the cores of liquid dehumidifying air-conditioning system, it is the main place that air and hygroscopic agent solution carry out the caloic exchange, the design quality of regenerator and dehumidifier is related to the performance of whole dehumidifier/air-conditioning system according to the way of contact in humid air and the liquid desiccant caloic exchange process, can be divided into time and tide and three kinds of forms of distributary to dehumidifier and regenerator, wherein the adverse current effect is best.The pattern of countercurrent filling tower has heat insulation-type or internally cooled.For the heat insulation-type packed tower, air and solution are finished in packed tower in the process of caloic exchange, with the heat transmission in the external world seldom, though it is big to be similar to the heat exchange area (specific area) of regarding adiabatic process unit volume as, can handle the air of big flow, and it is simple and compact for structure, but because the latent heat that the liquefaction of dehumidification process water vapour is emitted and the heat of dilution are absorbed by air and solution self, solution temperature is raise, the steam partial pressure of solution surface also raises simultaneously, cause the average pressure reduction of mass transfer to reduce, the carrying out that is unfavorable for dehumidification process must reduce the temperature rise of dehumidification process for strengthening effect on moisture extraction; Yet, must use regenerator to carry out solution and regenerate in order to make the concentration before solution after the moisture absorption is got back to dehumidifying.Water vapor in the solution regenerative process absorbs the latent heat of vaporization, cause the solution cooling, the steam partial pressure of solution surface is also reduced, cause the average pressure reduction of mass transfer to reduce, be unfavorable for studies show that of regenerative process: dehumidifying wishes to reduce solution temperature, regeneration then wishes to improve solution temperature, the caloic exchange efficiency that could effectively improve dehumidifying and regenerative process in packed tower solution temperature rise in the dehumidification process is too high, present way mainly is to adopt the internally cooled packed tower, but the making complexity of internally cooled, flow resistance is big, causes the wasted work of solution pump to increase, produce vapour lock in the time of also can making the packed tower operation and cause liquid flooding, influence the normal operation of packed tower.
The utility model content
The utility model discloses a kind of packed tower that is used for air dewetting, its purpose is to overcome the solution temperature rise in the existing heat insulation-type filler dehumidifying tower dehumidification process, and the solution in the regenerative process reduces and the dehumidifying or the regenerability that cause descend; Overcome the making complexity of internally cooled packed tower, flow resistance is big, causes the wasted work of solution pump to increase, and produces vapour lock when making the packed tower operation and causes liquid flooding, the problems such as normal operation of influence dehumidifying tower.The utility model not only can effectively suppress the reduction of solution temperature in the rising of solution temperature in the dehumidification process and the regenerative process, improve the caloic exchange efficiency, and the resistant material of employing excellent performance is as filler, the life-span of extension fixture, in addition, can also effectively avoid processed empty gas carrying liquid
A kind of packed tower that is used for air dewetting, the structure of dehumidifying tower is followed successively by from top to bottom: dry air layer, demister, liquid distributor, filler and pending air layer, the structure of regenerator is followed successively by from top to bottom: outlet air layer, demister, liquid distributor, filler and inlet air layer is characterized in that: two-layer filler up and down is set between the liquid distributor of dehumidifying tower and the pending air layer; The dehumidifying tower is being provided with cooling coil between the two-layer filler up and down, and the cooling water inlet of cooling coil and coolant outlet are arranged on the sidewall of dehumidifying tower, are connected with cooling device by pipeline; Two-layer filler up and down is set between the liquid distributor of regenerator and the inlet air layer; Up and down be provided with heat(ing) coil between the two-layer filler, heat(ing) coil adds hot water inlet and adds on the sidewall that hot water outlet is arranged on regenerator, is connected with heater by pipeline.
Described cooling coil or heat(ing) coil are separately positioned on 1/3rd places up, packing layer bottom.
Described filler is the plastic silk screen structured packing.
Advantage of the present utility model and good effect: cooling coil is set in the middle of the packing layer of dehumidifying tower, and cooling water flows in coil pipe, and solution and air are cooled off; Heat(ing) coil is set in the middle of regenerator, and hot water flows in coil pipe, and solution is heated.The lasting temperature rise of dehumidification solution and the lasting cooling of actified solution have been avoided in this measure, improve the average pressure reduction of mass transfer, thereby improve effect on moisture extraction and regeneration effect.Device is made simply simultaneously, reduces the flow resistance of air and solution, and filler adopts the plastic silk screen structured packing, and its advantage is that specific area is big, and the voidage height is in light weight; Gas phase path inclination angle is little, and crushing is little; Radial diffusion is good, the gas-liquid full contact, and liquid holdup is lower, and mesh has capillarity, easily forms stable liquid film, and is corrosion-resistant, has good chemical stability, improved the caloic switching performance of solution and air.
Description of drawings
Fig. 1 is the structural representation of the utility model dehumidifying tower;
Fig. 2 is the structural representation of the utility model regenerator;
Fig. 3 is a kind of system architecture schematic diagram that is used for the packed tower of air dewetting of the utility model.
The dehumidifying tower, 2. regenerator, 3. the dry air layer, 4. demister, 5. liquid distributor, 6. filler, 7. pending air layer, 8. cooling coil, 9. heat(ing) coil, 10. cooling water inlet, 11. coolant outlets, 12. add hot water inlet, 13. and add hot water outlet, 14. inlet air layers, 15. outlet air layers, 16. pending air intlets, the outlet of 17. dry airs, 18. regeneration air imports, the outlet of 19. regeneration airs, 20. solution inlet port, 21. tapholes.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail, but present embodiment is not limited to the utility model, every employing analog structure of the present utility model and similar variation thereof all should be listed protection domain of the present utility model in.
A kind of packed tower that is used for air dewetting, the dehumidifying tower 1 structure as shown in Figure 1: be followed successively by from top to bottom: dry air layer 3, demister 4, liquid distributor 5, filler 6 and pending air layer 7, the structure of regenerator 2 is as shown in Figure 2: be followed successively by from top to bottom: outlet air layer 15, demister 4, liquid distributor 5, filler 6 and inlet air layer 14 is characterized in that: two-layer filler 6 up and down is set between the liquid distributor 5 of dehumidifying tower 1 and the pending air layer 7; Dehumidifying tower 1 is being provided with cooling coil 8 between the two-layer filler up and down, and the cooling water inlet 10 and the coolant outlet 11 of cooling coil are arranged on the sidewall of dehumidifying tower 1, are connected with cooling device by pipeline; Two-layer filler up and down is set between the liquid distributor 5 of regenerator 2 and the inlet air layer 14; Up and down be provided with heat(ing) coil 9 between the two-layer filler, heat(ing) coil adds hot water inlet 12 and adds on the sidewall that hot water outlet 13 is arranged on regenerator 2, is connected with heater by pipeline.Cooling coil 8 or heat(ing) coil 9 are separately positioned on 1/3rd places up, packing layer bottom.Cooling water inlet temperature is not more than 28 ℃.Filler is the plastic silk screen structured packing.
The utility model is a kind of be used for air dewetting packed tower system architecture as shown in Figure 3.
1, humid air enters dehumidifying tower 1 upruss from pending air intlet 16, concentrated solution enters liquid distributor 5 from the solution inlet port 20 on the dehumidifying tower, evenly be sprayed on dehumidifying inner-tower filling material 6 surfaces, flow downward by the gravity effect, humid air and solution fully carry out the heat and mass exchange at filling surface.The airborne steam of dehumidification process is absorbed liquefaction by solution, and emit latent heat of liquefaction, cause solution temperature to rise, the solution wettability power descends, in the dehumidifying tower, cooling coil 8 has been installed for this reason, with the water quench solution that cooling tower or other type of cooling are sent here, suppress its temperature and raise, to improve wettability power.High-temperature cooling water after the heat exchange simultaneously goes cooling tower circulation cooling to utilize again; Dry air is discharged the dehumidifying tower by dry air outlet 17.
2, the weak solution after the moisture absorption is discharged dehumidifying tower 1 by taphole 21 and is gone regenerator 2 regeneration, and the dry air of formation is removed the liquid foam through demister 4 and sent dehumidifying tower 1.For regenerator 2, regeneration air enters regenerator 2 uprusses by regeneration air import 18, weak solution after being heated enters liquid distributor 5 by the solution inlet port on the regenerator 20, evenly be sprayed on inner-tower filling material 6 surfaces, flow downward by the gravity effect, filling surface in regenerator 2, solution and regeneration air are because heat and mass is carried out in the effect of steam partial pressure difference, and moisture vapor transfer is to air in the solution.Water evaporates vaporization in the regenerative process in the solution, and the absorption latent heat of vaporization, cause solution temperature to descend, the air regenesis ability drop, heat(ing) coil 9 has been installed in regenerator for this reason, and hot water enters heat(ing) coil by adding hot water inlet 12, uses the hot water heated solution, suppress its temperature and reduce, to improve power of regeneration.Low-temperature water heating after the heat exchange simultaneously goes firing equipment circulation heating to utilize by adding hot water outlet 13 again.Concentrated solution after the regeneration is discharged regenerator 2 by taphole 21, enters the liquor box of dehumidifying tower 1, enters 1 dehumidifying of dehumidifying tower through solution pump; Hot and humid air after the regeneration is discharged regenerator 2 by regeneration air outlet 19 after silk screen demister 4 is removed the liquid foam.
3, for avoiding the sky gas carrying liquid, the void tower gas flow rate should not be greater than 2.2m/s.Solution evenly sprays on the filler 6 from entering liquid distributor 5, solution and air reverse flow, in filler, carry out heat and mass with air after, discharge from the tower bottom.At dehumidifying tower packing middle part cooling coil is set, in the middle of the regenerator filler heat(ing) coil is set, be used for solution and air are cooled off and heat.Utilize the recirculated cooling water of cooling tower or other cooling procedure preparation to enter in the cooling coil, to the solution cooling in the partition outside by cooling water inlet 10; Utilize the circulating hot water of heater preparation to enter in the coil pipe the heating of the solution outside the partition by adding hot water inlet 12.
Claims (3)
1. packed tower that is used for air dewetting, the structure of dehumidifying tower is followed successively by from top to bottom: dry air layer, demister, liquid distributor, filler and pending air layer; The structure of regenerator is followed successively by from top to bottom: discharge air layer, demister, liquid distributor, filler and inlet air layer, it is characterized in that: two-layer filler up and down is set between the liquid distributor of dehumidifying tower and the pending air layer; The dehumidifying tower is being provided with cooling coil between the two-layer filler up and down, and the cooling water inlet of cooling coil and coolant outlet are arranged on the sidewall of dehumidifying tower, are connected with cooling device by pipeline; Two-layer filler up and down is set between the liquid distributor of regenerator and the inlet air layer; Up and down be provided with heat(ing) coil between the two-layer filler, heat(ing) coil adds hot water inlet and adds on the sidewall that hot water outlet is arranged on regenerator, is connected with heater by pipeline.
2. a kind of packed tower that is used for air dewetting according to claim 1 is characterized in that: described cooling coil or heat(ing) coil are separately positioned on 1/3rd places up, packing layer bottom.
3. a kind of packed tower that is used for air dewetting according to claim 1 is characterized in that: described filler is the plastic silk screen structured packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200586022U CN201244432Y (en) | 2008-05-19 | 2008-05-19 | Packing tower for eliminating air moisture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200586022U CN201244432Y (en) | 2008-05-19 | 2008-05-19 | Packing tower for eliminating air moisture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201244432Y true CN201244432Y (en) | 2009-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200586022U Expired - Lifetime CN201244432Y (en) | 2008-05-19 | 2008-05-19 | Packing tower for eliminating air moisture |
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| CN (1) | CN201244432Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101275766B (en) * | 2008-05-19 | 2010-06-09 | 上海理工大学 | Air dehumidification and solution regenerating device |
| CN103471374A (en) * | 2013-09-29 | 2013-12-25 | 湖南科技大学 | Solar auxiliary heat-pump drying system |
| CN105299783A (en) * | 2015-11-02 | 2016-02-03 | 西安交通大学 | Solar-driven solution membrane concentration and solution dehumidification device and dehumidification method |
| CN107218797A (en) * | 2017-06-05 | 2017-09-29 | 广州研华环境科技有限公司 | A kind of drying device and its application |
-
2008
- 2008-05-19 CN CNU2008200586022U patent/CN201244432Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101275766B (en) * | 2008-05-19 | 2010-06-09 | 上海理工大学 | Air dehumidification and solution regenerating device |
| CN103471374A (en) * | 2013-09-29 | 2013-12-25 | 湖南科技大学 | Solar auxiliary heat-pump drying system |
| CN103471374B (en) * | 2013-09-29 | 2015-10-21 | 湖南科技大学 | Solar-assisted heat pump drying system |
| CN105299783A (en) * | 2015-11-02 | 2016-02-03 | 西安交通大学 | Solar-driven solution membrane concentration and solution dehumidification device and dehumidification method |
| CN107218797A (en) * | 2017-06-05 | 2017-09-29 | 广州研华环境科技有限公司 | A kind of drying device and its application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090527 Effective date of abandoning: 20080519 |