CN1558152A - Composite air treating method based on solution dehumidifying cooling and refrigeration cycle - Google Patents
Composite air treating method based on solution dehumidifying cooling and refrigeration cycle Download PDFInfo
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- CN1558152A CN1558152A CNA2004100159565A CN200410015956A CN1558152A CN 1558152 A CN1558152 A CN 1558152A CN A2004100159565 A CNA2004100159565 A CN A2004100159565A CN 200410015956 A CN200410015956 A CN 200410015956A CN 1558152 A CN1558152 A CN 1558152A
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Abstract
The present invention discloses air conditioning method based on solution dehumidification and cooling and refrigerating circulation compounding. It utilizes solution to dehumidify and treat air latent heat load or wet load of air, and utilizes any refrigerating circulation to apparent hot load. The refrigerating circulation provides the solution with cooling source for dehumidification and heat for concentration. Air to be cooled and dehumidified is made to pass through air treating system including solution dehumidifier and evaporator for refrigerating circulation; and air to be heated and humidified is made to pass through corresponding solution regenerator and condensator. The present invention has reduced power consumption of compressor, raised evaporation temperature of the refrigerating circulation, greatly raised COP of refrigerating circulation, lowered dehumidifying cost, reduced volume and independent controlled air temperature and humidity.
Description
Technical field
The present invention relates to a kind of based on solution dehumidification cooling and the compound air-treatment method of kind of refrigeration cycle.
Background technology
In conventional compression-type refrigerating system, dehumidifying is to be reduced to by the temperature with cooling coil to be lower than the realization of air dew point temperature.But under super-humid conditions, this dehumanization method efficient is not high, and the indoor thermal and humidity environment that is produced also makes the people do not feel like oneself.The common practice of people is to turn down the design temperature of cooling coil, and this has increased the refrigeration power consumption again.
The principle of solution dehumidification is: in the aqueous solution of some salt (as calcium chloride, lithium chloride) owing to be mixed with the salt quasi-molecule, the concentration of hydrone is reduced, make the stream molecule pressure of salt water surface saturated air layer will be lower than the synthermal stream molecule pressure of water surface saturated air layer down.So when airborne stream molecule pressure during greater than the stream molecule pressure of salt water surface, airborne water vapour molecule will shift to salt solution, promptly be absorbed by salt solution.In temperature one regularly, saline solution concentration is big more, it is just low more that water vapour molecule pressure is gone up on its surface, wettability power is just strong more, even when brine temp is higher than the dew-point temperature of air, also can absorb airborne moisture, after saline solution absorbs airborne hydrone, its concentration will reduce gradually, and wettability power weakens corresponding.Make wherein moisture minimizing by evaporation regeneration again, recover the wettability power of saline solution saline solution.
Summary of the invention
The invention discloses a kind of based on solution dehumidification cooling and the compound air-treatment method of kind of refrigeration cycle.
The latent heat load that it utilizes solution dehumidification system to handle air is a humidity load, utilize any kind of refrigeration cycle to handle sensible heat load: air is cooled off and during dehumidification treatments, the dehumidifying of air or most of dehumidifying are realized by solution dehumidification, the cooling of air or most of cooling are realized by kind of refrigeration cycle, the required cooling source of solution dehumidification is provided by kind of refrigeration cycle, and solution concentration regeneration institute calorific requirement is also provided by kind of refrigeration cycle; When air is carried out the warming and humidifying processing, the humidification of air or most of humidification, being converted to solution by solution dehumidification regenerates and realizes, the intensification of air or most of the intensification, realize by kind of refrigeration cycle, solution regeneration institute calorific requirement is provided by kind of refrigeration cycle, and solution regeneration is converted to solution dehumidification, and its chilling requirement is provided by kind of refrigeration cycle.
The present invention is owing to the refrigerant with the solution dehumidification system heat exchange does not need to be cooled to below the processed air dew point, just can realize the dehumidification process of air, reduced the hot humidity load of air, and improved the evaporating temperature of system's kind of refrigeration cycle, the COP of kind of refrigeration cycle improves greatly; Handle the kind of refrigeration cycle of sensible heat, its evaporating temperature height, condensation temperature can use evaporative condenser to reduce condensation temperature, and the COP of kind of refrigeration cycle is improved.
The present invention will be to the humidity and the temperature difference independent process of air, and the dehumidifying cost reduces, and can independently control the temperature and humidity of air accurately.Compare with pure solution dehumidification system, system is simpler, and cost is low, and volume is little, and the solution use amount is few, and the power consumption of delivered solution is few.
Description of drawings
Fig. 1 is solution dehumidification cooling and the compound air cooling and dehumidifying principle schematic of kind of refrigeration cycle;
Fig. 2 is solution dehumidification cooling and the compound air cooling and dehumidifying method schematic diagram of kind of refrigeration cycle;
Fig. 3 is solution dehumidification cooling and the compound air wetting intensification principle schematic of kind of refrigeration cycle;
Fig. 4 is solution dehumidification cooling and the compound air wetting temperature-rising method schematic diagram of kind of refrigeration cycle;
Fig. 5 is solution dehumidification cooling and the compound air-treatment method principle schematic of compression-type refrigeration circulation;
Fig. 6 is solution dehumidification cooling and the compound multistage cooling and dehumidifying method of the air schematic diagram of kind of refrigeration cycle;
Fig. 7 is solution dehumidification cooling and the compound multistage humidification temperature-rising method of the air schematic diagram of kind of refrigeration cycle;
Fig. 8 is the solution circulation schematic diagram of multi-stage solution dehumidifying and renovation process;
Fig. 9 is solution dehumidification cooling and the compound air-treatment method example of kind of refrigeration cycle.
The specific embodiment
The latent heat load that the present invention utilizes solution dehumidification to handle air is a humidity load, utilizes any kind of refrigeration cycle to handle sensible heat load, and the required cooling source of solution dehumidification is provided by kind of refrigeration cycle, and solution concentration regeneration institute calorific requirement is also provided by kind of refrigeration cycle.Air is cooled off and during dehumidification treatments, the air that needs to handle can be realized cooling and dehumidifying by the spaced air treatment system of evaporimeter by at least one solution moisture removing device and at least one kind of refrigeration cycle; When air is carried out the warming and humidifying processing, only need above-mentioned solution moisture removing device is converted to the solution regenerator, evaporimeter is converted to condenser and gets final product.
As shown in Figure 1, when air when concentrated solution in the solution dehumidification system contacts, because the steam partial pressure of solution surface is lower than airborne steam partial pressure, therefore airborne steam is absorbed by concentrated solution, after concentrated solution is thinning, its regeneration concentrates needed heat Q2 and is provided by kind of refrigeration cycle, and the liberated heat Q1 of the cooling of air institute is taken away by kind of refrigeration cycle.
As shown in Figure 2, the cooling of air and dehumidifying are through the evaporimeter by at least one solution moisture removing device and at least one kind of refrigeration cycle, as the picture left above air is earlier through a solution moisture removing device dehumidifying, state changes to a2 by a1, evaporimeter through a kind of refrigeration cycle reduces temperature again, and state changes to a3 by a2; Lower-left figure air is the evaporimeter reduction temperature of elder generation through a kind of refrigeration cycle, and state changes to a4 by a1, and through a solution moisture removing device dehumidifying, state changes to a5 by a4 again, and we can see the variation of aerial temperature and humidity from the psychrometric chart on the right.
As shown in Figure 3, when air when weak solution in the solution dehumidification system contacts, because the steam partial pressure of solution surface is higher than airborne steam partial pressure, therefore absorb the moisture in the weak solution in the air, after weak solution thickens, the cold Q4 of its dehumidifying is provided by kind of refrigeration cycle, and the heat Q3 that intensification absorbed of air is provided by kind of refrigeration cycle.
As shown in Figure 4, the heating of air and humidification are through the condenser by at least one solution regenerator and at least one kind of refrigeration cycle, as the picture left above air is earlier through a solution regenerator humidification, state changes to a7 by a6, through the condenser rising temperature of a kind of refrigeration cycle, state changes to a8 by a7 again; Lower-left figure air is the condenser rising temperature of elder generation through a kind of refrigeration cycle, and state changes to a9 by a6, and through a solution regenerator humidification, state changes to a0 by a6 again, and we can see the variation of aerial temperature and humidity from the psychrometric chart on the right.
As shown in Figure 5, each solution dehumidification system (comprising dehumidifier and regenerator) respectively with one independently kind of refrigeration cycle be complementary, its dehumidifier links to each other with evaporimeter in the kind of refrigeration cycle, its chilling requirement Q5 is provided by this evaporimeter; Its regenerator links to each other with condenser in the kind of refrigeration cycle, and its calorific requirement Q6 is provided by this condenser.
As shown in Figure 6, the cooling of air and dehumidifying are through the evaporimeter by at least one solution moisture removing device and at least one kind of refrigeration cycle, as the picture left above air is earlier through a solution moisture removing device dehumidifying, state changes to b2 by b1, evaporimeter through a kind of refrigeration cycle reduces temperature then, state changes to b3 by b2, and through a solution moisture removing device dehumidifying, state changes to b4 by b3 again; Lower-left figure air is the evaporimeter reduction temperature of elder generation through a kind of refrigeration cycle, state changes to b5 by b1, then through a solution moisture removing device dehumidifying, state changes to b6 by b5, evaporimeter through a kind of refrigeration cycle reduces temperature again, state changes to b7 by b6, and we can see the variation of aerial temperature and humidity from the psychrometric chart on the right.
As shown in Figure 7, the heating of air and humidification are through the condenser by at least one solution regenerator and at least one kind of refrigeration cycle, as the picture left above air is earlier through a solution regenerator humidification, state changes to c2 by c1, then through the condenser rising temperature of a kind of refrigeration cycle, state changes to c3 by c2, and through a solution regenerator humidification, state changes to c4 by c3 again; Lower-left figure air is the condenser rising temperature of elder generation through a kind of refrigeration cycle, state changes to c5 by c1, then through a solution regenerator humidification, state changes to c6 by c5, again through the condenser rising temperature of a kind of refrigeration cycle, state changes to c7 by c6, and we can see the variation of aerial temperature and humidity from the psychrometric chart on the right.
As shown in Figure 8, between a plurality of solution moisture removing devices, between a plurality of solution regenerators and the contact that solution is arranged between dehumidifier and the regenerator, solution flow through successively solution moisture removing device 1, solution moisture removing device 2, solution regenerator 1, solution regenerator 2 are sent the concentrated solution in the solution regenerator 2 back to solution moisture removing device 1 again.
As shown in Figure 9,1a and 1b are compressor, and 2a and 2b are four-way change-over valve, 3b is a condenser, and 4a and 4b are choke valve, and 5b is an evaporimeter, 6a and 6b are gas-liquid separator, and 7a and 7b are coil pipe, and 8 is auxiliary condenser, 9 is magnetic valve, and 10 is choke valve, and 12a, 12b, 12c and 12d are solution pump, 14a, 14b and 14c are solution tank, and 15a, 15b and 15c are the solution spraying pipe, 16,17,18 is filling block.The solution dehumidification cooling has compression-type refrigerating system, air conveying system, solution dehumidification system with the compression heat pump hybrid system, compression-type refrigerating system has the two-way circulation, and wherein one tunnel circulation is connected with compressor 1a, four-way change-over valve 2a, coil pipe 7a, choke valve 4a, coil pipe 7b, gas-liquid separator 6a in turn; Two tunnel circulations are connected with compressor 1b, four-way change-over valve 2b, condenser 3b, choke valve 4b, evaporimeter 5b, gas-liquid separator 6b in turn; Described solution dehumidification system has solution tank 14b, solution pump 12c, solution spraying pipe 15b and filling block 17 and links to each other successively and link to each other successively with filling block 18 with solution tank 14c, solution pump 12d, solution spraying pipe 15c; Described air conveying system provides the air of two bursts of adverse currents, and one air is successively by coil pipe 7b, filling block 18, and another strand air is successively by filling block 17, coil pipe 7a; Solution tank 14b in the described solution dehumidification system and solution tank 14c respectively with compression-type refrigerating system in condenser 3b be connected by solution conduit with evaporimeter 5b.
Air-flow is respectively in two channel flow up and down, suppose that the upper strata is a return air channel, lower floor is new wind passage, the total-heat exchanger that the centre is made up of filler, solution pump, solution tank and solution spraying pipe etc., condenser and evaporimeter all adopt plate type heat exchanger, and join with shower on the filling block.Be equipped with solution tank below each filling block, solution sprays in the filler again and carries out full heat exchange with gas by the shower above the solution pump introducing filling block.
When system carries out refrigeration work, coil pipe 7a is as condenser, 7b is as evaporimeter, new wind carries out full heat exchange with return air earlier in full heat regenerator after by dehumidifying and cooling, then earlier by coil pipe 7b cooling, again by filling block 18, and wherein carried out damp and hot exchange by the dehumidifying liquid of evaporimeter 5b absorbing and cooling temperature, send into indoor after being dehumidified; Return air is then earlier carrying out being heated up by humidification after the full heat exchange with new wind in full heat regenerator, then earlier by filling block 17, carries out damp and hot exchange with the exothermic dehumidifying liquid of absorptive condenser 3b wherein, and again by coil pipe 7a, the back of heating up is discharged outdoor behind the humidification.With four-way change-over valve 2a and 2b commutation, system heats work during winter.
Because in kind of refrigeration cycle, the heat that the condenser liberated heat absorbs more than evaporimeter, can make the concentration of dehumidifying liquid constantly raise, therefore can add the concentration that dehumidifying liquid comes regulator solution by some condensed waters at coil pipe 7b place, perhaps discharge unnecessary heat by increasing an auxiliary condenser 8.
Claims (7)
1. one kind based on solution dehumidification cooling and the compound air-treatment method of kind of refrigeration cycle, it is characterized in that: the latent heat load that it utilizes solution dehumidification system to handle air is a humidity load, utilize any kind of refrigeration cycle to handle sensible heat load: air is cooled off and during dehumidification treatments, the dehumidifying of air or most of dehumidifying are realized by solution dehumidification, the cooling of air or most of cooling are realized by kind of refrigeration cycle, the required cooling source of solution dehumidification is provided by kind of refrigeration cycle, and solution concentration regeneration institute calorific requirement is also provided by kind of refrigeration cycle; When air is carried out the warming and humidifying processing, the humidification of air or most of humidification, being converted to solution by solution dehumidification regenerates and realizes, the intensification of air or most of the intensification, realize by kind of refrigeration cycle, solution regeneration institute calorific requirement is provided by kind of refrigeration cycle, and solution regeneration is converted to solution dehumidification, and its chilling requirement is provided by kind of refrigeration cycle.
2. according to claim 1 a kind of based on solution dehumidification cooling and the compound air-treatment method of kind of refrigeration cycle, it is characterized in that, said air is cooled off and during dehumidification treatments: the air treatment system of air through forming by the evaporimeter of at least one solution moisture removing device and at least one kind of refrigeration cycle.
3. according to claim 1 a kind of based on solution dehumidification cooling and the compound air-treatment method of kind of refrigeration cycle, it is characterized in that, said air is heated and when adding wet process: the air treatment system of air through forming by the condenser of at least one solution regenerator and at least one kind of refrigeration cycle.
4. according to claim 1 based on solution dehumidification cooling and the compound air-treatment method of kind of refrigeration cycle, it is characterized in that: said each solution dehumidification system comprise dehumidifier and regenerator respectively with one independently kind of refrigeration cycle be complementary, dehumidifier links to each other with the evaporimeter of kind of refrigeration cycle, and regenerator links to each other with the condenser of kind of refrigeration cycle.
5. according to claim 3 or 4 described a kind of based on solution dehumidification cooling and the compound air-treatment method of kind of refrigeration cycle, it is characterized in that: said air treatment system has the evaporimeter of at least one solution moisture removing device and at least one kind of refrigeration cycle, exist thermograde, promptly air successively from high-temperature stream through low temperature; Said air treatment system has the air treatment system that the condensation of at least one solution regenerator and at least one kind of refrigeration cycle is formed, and exists thermograde, promptly air successively from cryogenic flow through high temperature.
6. according to claim 1 a kind of based on solution dehumidification cooling and the compound air-treatment method of kind of refrigeration cycle, it is characterized in that: said kind of refrigeration cycle is the compression-type refrigeration circulation.
7. according to claim 2 a kind of based on solution dehumidification cooling and the compound air-treatment method of kind of refrigeration cycle, it is characterized in that: said dehumidifier and regenerator are a plurality of, between a plurality of solution moisture removing devices, between a plurality of solution regenerator and the contact that solution is arranged between dehumidifier and the regenerator.
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| CNA2004100159565A CN1558152A (en) | 2004-01-15 | 2004-01-15 | Composite air treating method based on solution dehumidifying cooling and refrigeration cycle |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1306231C (en) * | 2005-10-10 | 2007-03-21 | 尹进福 | Method for air conditioning by solution dehumidifying with cold-hot two-side energy of refrigerating compressor |
| CN1322273C (en) * | 2005-08-26 | 2007-06-20 | 清华大学 | Small-sized central air conditioning system with fresh air |
| CN1333206C (en) * | 2005-08-26 | 2007-08-22 | 清华大学 | Heat pump driven energy storage type solution dehumidifying air-conditioning system |
| CN100334408C (en) * | 2005-11-11 | 2007-08-29 | 东南大学 | Solar energy accumulation type equipment of water chilling unit set, and refrigeration method of evaporation and refrigeration |
| CN100404967C (en) * | 2006-06-15 | 2008-07-23 | 清华大学 | Air treater set with moisture-absorbing solution as circulation work medium and driven by hot pump |
| CN100424446C (en) * | 2007-03-16 | 2008-10-08 | 东南大学 | Heat accumulating and regenerating device of solar energy air preprocessing solution |
| CN100451468C (en) * | 2006-06-15 | 2009-01-14 | 清华大学 | Multi-stage solution dehumidifying and regenerating fresh air set driven by heat pump |
| CN100458292C (en) * | 2007-01-09 | 2009-02-04 | 西安建筑科技大学 | Refrigerating unit of air condition by dehumidifying, evaporative cooling solution |
| CN103727009A (en) * | 2014-01-22 | 2014-04-16 | 上海理工大学 | Air dehumidification and compression system |
| CN103953992A (en) * | 2014-05-05 | 2014-07-30 | 重庆大学 | Low temperature resistant fuel gas heat pump air-conditioning system combiningwaste heat recovery mode and liquid dehumidification mode |
| CN104390300A (en) * | 2014-11-24 | 2015-03-04 | 东南大学 | Heat source tower heat pump solution regeneration device achieving cooling in summer and solution regeneration in winter |
| CN105758056A (en) * | 2016-04-22 | 2016-07-13 | 广东美的制冷设备有限公司 | Air conditioning system and air conditioner with same |
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2004
- 2004-01-15 CN CNA2004100159565A patent/CN1558152A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1322273C (en) * | 2005-08-26 | 2007-06-20 | 清华大学 | Small-sized central air conditioning system with fresh air |
| CN1333206C (en) * | 2005-08-26 | 2007-08-22 | 清华大学 | Heat pump driven energy storage type solution dehumidifying air-conditioning system |
| CN1306231C (en) * | 2005-10-10 | 2007-03-21 | 尹进福 | Method for air conditioning by solution dehumidifying with cold-hot two-side energy of refrigerating compressor |
| CN100334408C (en) * | 2005-11-11 | 2007-08-29 | 东南大学 | Solar energy accumulation type equipment of water chilling unit set, and refrigeration method of evaporation and refrigeration |
| CN100451468C (en) * | 2006-06-15 | 2009-01-14 | 清华大学 | Multi-stage solution dehumidifying and regenerating fresh air set driven by heat pump |
| CN100404967C (en) * | 2006-06-15 | 2008-07-23 | 清华大学 | Air treater set with moisture-absorbing solution as circulation work medium and driven by hot pump |
| CN100458292C (en) * | 2007-01-09 | 2009-02-04 | 西安建筑科技大学 | Refrigerating unit of air condition by dehumidifying, evaporative cooling solution |
| CN100424446C (en) * | 2007-03-16 | 2008-10-08 | 东南大学 | Heat accumulating and regenerating device of solar energy air preprocessing solution |
| CN103727009A (en) * | 2014-01-22 | 2014-04-16 | 上海理工大学 | Air dehumidification and compression system |
| CN103727009B (en) * | 2014-01-22 | 2017-01-04 | 上海理工大学 | A kind of air dewetting compressibility |
| CN103953992A (en) * | 2014-05-05 | 2014-07-30 | 重庆大学 | Low temperature resistant fuel gas heat pump air-conditioning system combiningwaste heat recovery mode and liquid dehumidification mode |
| CN104390300A (en) * | 2014-11-24 | 2015-03-04 | 东南大学 | Heat source tower heat pump solution regeneration device achieving cooling in summer and solution regeneration in winter |
| CN104390300B (en) * | 2014-11-24 | 2017-02-22 | 东南大学 | Heat source tower heat pump solution regeneration device achieving cooling in summer and solution regeneration in winter |
| CN105758056A (en) * | 2016-04-22 | 2016-07-13 | 广东美的制冷设备有限公司 | Air conditioning system and air conditioner with same |
| CN105758056B (en) * | 2016-04-22 | 2018-08-17 | 广东美的制冷设备有限公司 | Air-conditioning system and air conditioner with it |
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