CN103225855B - The solution dehumidification air processor that a kind of multi-stage heat pump circulation drives - Google Patents
The solution dehumidification air processor that a kind of multi-stage heat pump circulation drives Download PDFInfo
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- CN103225855B CN103225855B CN201310120078.2A CN201310120078A CN103225855B CN 103225855 B CN103225855 B CN 103225855B CN 201310120078 A CN201310120078 A CN 201310120078A CN 103225855 B CN103225855 B CN 103225855B
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- 238000007791 dehumidification Methods 0.000 title claims abstract description 23
- 239000003507 refrigerant Substances 0.000 claims abstract description 7
- 230000008929 regeneration Effects 0.000 claims abstract description 7
- 238000011069 regeneration method Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000009833 condensation Methods 0.000 description 7
- 230000005494 condensation Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000009938 salting Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The present invention relates to the solution dehumidification air processor that the circulation of a kind of multi-stage heat pump drives, it above heat pump circulating system of two-stage comprising a countercurrent packed tower dehumidifier, a countercurrent packed tower regenerator, two solution pump, solution heat exchangers and be arranged on therebetween; Every one-level heat pump circulating system comprises the choke valve, compressor, condenser and the evaporimeter that are connected successively by refrigerant line, and condenser shell at different levels is sequentially connected in series, and evaporator shell at different levels is sequentially connected in series; The bottom solution of dehumidifier is by pipeline connects a heat exchanger tube of wherein a solution pump, solution heat exchanger successively, the condenser of series connection at different levels arrives regenerator upper entrance, in regenerator with regeneration air heat and mass after, connect another solution pump at the outlet at bottom of regenerator successively by pipeline, another heat exchanger tube of solution heat exchanger, the evaporimeter of series connection at different levels get back to the upper entrance of dehumidifier, in dehumidifier with processed air heat and mass after, get back to the outlet at bottom of dehumidifier.
Description
Technical field
The present invention relates to the solution dehumidification air processor that the circulation of a kind of multi-stage heat pump drives, particularly utilize multi-stage heat pump to drive about one improve gradually and reduce solution temperature gradually, making the solution dehumidification air processor of the uniform countercurrent packed tower formula of heat transfer temperature difference.
Background technology
In existing air-conditioning technical, mostly adopt dehumidification by condensation processing mode, cryogenic freezing water prepared by refrigeration machine, and air themperature is reduced to below dew point, thus realize the dehumidification treatments process for new wind.Because the sink temperature needed is very low, causes the evaporating temperature of refrigeration machine to reduce, thus had a strong impact on the coefficient of performance of refrigeration machine.And the condensate water that dehumidification by condensation produces is easy to mould growth, has a strong impact on indoor air quality.Solution dehumidification mode adopts the salting liquid with hygroscopic nature as working media, carries out heat and mass by salting liquid and new wind, realizes the dehumidification treatments process for new wind.Solution dehumidification mode can adopt the thermal source of low temperature as the energy source of solution concentrating regenerative, as the hot water, used heat etc. of solar energy, heat supply network.
As shown in Figure 5, patent US6976365, name is called, and " a kind of dehumidifying/air-conditioning system " (Dehumidifier/Air-conditioning system) discloses the air processor that a kind of solution dehumidification is coupled with heat pump refrigeration cycle.This device adopts the packed tower of air and solution adverse current as dehumidifier 21 and regenerator 22, by a set of heat pump cycle to solution cooling and intensification, before entering dehumidifier 21, solution is cooled by the evaporimeter 23 of heat pump, before entering regenerator 22, solution is heated by the condenser 24 of heat pump.Such mode takes full advantage of cold and the heat of heat pump cycle, effectively improves the performance of dehumidification system.But because the evaporimeter 23 of heat pump and condenser 24 are constant temperature thermals source, and solution is alternating temperature fluid, in cooled process, temperature can constantly reduce, can constantly raised by temperature in the process that heats, do not mate with the heat transfer characteristic of evaporimeter 23 and condenser 24, cause the waste of two equipment heat exchange areas, limit and improve evaporating temperature, reduction condensation temperature further.
Summary of the invention
For the problems referred to above, the object of this invention is to provide one and have high efficiency, the multi-stage heat pump driving counter-flowing solution dehumidified air treating apparatus that filler is tower.
For achieving the above object, the present invention takes following technical scheme: the solution dehumidification air processor that a kind of multi-stage heat pump circulation drives, and it is characterized in that: the above heat pump circulating system of two-stage that it comprises a countercurrent packed tower dehumidifier, a countercurrent packed tower regenerator, two solution pump, solution heat exchangers and is arranged between countercurrent packed tower dehumidifier and countercurrent packed tower regenerator; Heat pump circulating system described in every one-level comprises the choke valve, compressor, condenser and the evaporimeter that are connected successively by refrigerant line, and described condenser shell at different levels is sequentially connected in series, and described evaporator shell at different levels is sequentially connected in series;
The bottom solution of described countercurrent packed tower dehumidifier connects wherein solution pump described in successively by pipeline, one heat exchanger tube of described solution heat exchanger, the described condenser of series connection at different levels arrives the upper entrance of described countercurrent packed tower regenerator, in described countercurrent packed tower regenerator with regeneration air heat and mass after, solution pump described in another is connected successively by pipeline at the outlet at bottom of described countercurrent packed tower regenerator, another heat exchanger tube of described solution heat exchanger, the upper entrance of described countercurrent packed tower dehumidifier got back to by the described evaporimeter of series connection at different levels, in described countercurrent packed tower dehumidifier with processed air heat and mass after, get back to the outlet at bottom of described countercurrent packed tower dehumidifier.
Described heat pump circulating system at least comprises low temperature, middle temperature, high temperature three grades, wherein the described evaporator shell two ends of the heat pump circulating system of low-temperature level connect the top entry of described countercurrent packed tower dehumidifier and the described heat pump circulating system evaporator outlet of middle temperature level, the described condenser of the heat pump circulating system of low-temperature level, as an auxiliary heat release, is independently placed in air.
Described auxiliary heat release is except the condenser of the heat pump circulating system of low-temperature level, one devaporizer and a water pump are also set, the described condensator outlet of the heat pump circulating system of low-temperature level connects described devaporizer upper entrance by pipeline, described devaporizer outlet at bottom connects described pump entrance by pipeline, and described exit of pump connects the described condenser inlet of the heat pump circulating system of low-temperature level.
The solution dehumidification air processor that multi-stage heat pump circulation drives, is characterized in that: the above heat pump circulating system of two-stage that it comprises a countercurrent packed tower dehumidifier, a countercurrent packed tower regenerator, two solution pump, solution heat exchangers and is arranged between countercurrent packed tower dehumidifier and countercurrent packed tower regenerator; Heat pump circulating system described in every one-level comprises the choke valve, compressor, condenser and the evaporimeter that are connected successively by refrigerant line, and described condenser shell at different levels is sequentially connected in series, and described evaporator shell at different levels is sequentially connected in series;
Connect wherein solution pump entrance described in by pipeline bottom described countercurrent packed tower dehumidifier, described solution pump outlet is connected in parallel a heat exchanger tube of evaporimeter and solution heat exchanger; The upper entrance of described countercurrent packed tower dehumidifier got back to by the described evaporimeter of series connection at different levels by pipeline, in described countercurrent packed tower dehumidifier with processed air heat and mass after, get back to the outlet at bottom of described countercurrent packed tower dehumidifier; The other end of the heat exchanger tube of described solution heat exchanger is connected to the bottom of described countercurrent packed tower regenerator; The bottom of described countercurrent packed tower regenerator connects solution pump entrance described in another by pipeline, and solution pump outlet described in another is connected in parallel another heat exchanger tube of described condenser and described solution heat exchanger; The described condenser of series connection at different levels is connected to the top entry of described countercurrent packed tower regenerator by pipeline, in described countercurrent packed tower regenerator with processed air heat and mass after, get back to the outlet at bottom of described countercurrent packed tower regenerator; The other end of another heat exchanger tube of described solution heat exchanger is connected to bottom described countercurrent packed tower dehumidifier.
The present invention is owing to taking above technical scheme, and it has the following advantages:
1, the present invention adopts low temperature concentrated solution to processed air cooling-down, dehumidifying, utilize regeneration air to lower the temperature to the weak solution of high temperature, regenerate, the heat and mass transfer process of solution and air all presses close to the equal relative humidity line of air, thus improves the efficiency of solution dehumidification air processor.2, to the mode that cooling and the temperature-rise period of solution adopt multi-stage heat pump to circulate, solution is lowered the temperature gradually by multi-stage evaporator successively, is heated up gradually successively by multi-stage condensing device, achieves the cascade utilization of energy, improves heat pump efficiency.3, the present invention arranges air-cooled auxiliary or water-cooled and assists heat release, gets rid of the heat that condenser is unnecessary, reduces the condensation temperature of heat pump cycle, improve heat pump efficiency.4, the present invention adopts inter-stage endless form, decreases the energy loss because solution cold-hot counteraction causes, and improves solution dehumidification air processor efficiency further.The present invention can be widely used in building trade.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
Fig. 2 is the structural representation of the present invention with air-cooled auxiliary heat extraction
Fig. 3 is that the present invention assists the structural representation of heat extraction with water-cooled
Fig. 4 is the structural representation of solution interstage flow of the present invention
Fig. 5 is prior art structural representation
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail.
Embodiment 1:
As shown in Figure 1, the present embodiment above heat pump circulating system of two-stage of comprising countercurrent packed tower dehumidifier 1, countercurrent packed tower regenerator 2, two solution pump 7, solution heat exchangers 8 and being arranged between countercurrent packed tower dehumidifier 1 and countercurrent packed tower regenerator 2, every one-level heat pump circulating system comprises the choke valve 3, compressor 4, condenser 5 and the evaporimeter 6 that are connected successively by refrigerant line, and condenser 5 housing at different levels is sequentially connected in series, and evaporimeter 5 housing at different levels is sequentially connected in series, the bottom solution of countercurrent packed tower dehumidifier 1 connects a wherein solution pump 7 successively by pipeline, the heat exchanger tube 81 of solution heat exchanger 8, the condenser 5 of series connection at different levels arrives the upper entrance of countercurrent packed tower regenerator 2, in countercurrent packed tower regenerator 2 and after regeneration air heat and mass, another solution pump 7 ' is connected successively by pipeline at the outlet at bottom of countercurrent packed tower regenerator 2, the heat exchanger tube 82 of solution heat exchanger 8, the upper entrance of countercurrent packed tower dehumidifier 1 got back to by the evaporimeter 6 of series connection at different levels, in countercurrent packed tower dehumidifier 1 and after processed air heat and mass, get back to the outlet at bottom of countercurrent packed tower dehumidifier 1.
Embodiment 2:
Due in heat pump cycle, the heat exhaust of condenser 5 is greater than the refrigerating capacity of evaporimeter 6, and actified solution institute's calorific requirement and dehumidification solution institute chilling requirement close, so, if the condensation heat of heat pump is all discharged by regeneration air, so must need higher regeneration air temperature, and higher condensation temperature.
As shown in Figure 2, the present embodiment is on the basis of embodiment 1, heat pump circulating system is set at least comprise low temperature, middle gentle high temperature three grades, wherein the condenser 5 of low-temperature level heat pump circulating system is placed in air as auxiliary heat release, do not pass into dehumidification solution in condenser 5, and heat is directly discharged in air.This kind of mode can reduce the condensation temperature of heat pump, improves heat pump efficiency.Low-temperature level evaporimeter 6 housing two ends are still connect the top entry of countercurrent packed tower dehumidifier 1 and middle temperature level evaporimeter 6 exit.
As shown in Figure 3, auxiliary heat release in the present embodiment also can adopt following version, the housing outlets of the condenser 5 of low-temperature level is connected devaporizer 9 upper entrance, devaporizer 9 outlet at bottom connects a water pump 10 by pipeline, and the outlet of water pump 10 connects condenser 5 housing inlet port.
Embodiment 3:
As shown in Figure 4, the present embodiment is identical with embodiment 1, the above heat pump circulating system of two-stage also comprising countercurrent packed tower dehumidifier 1, countercurrent packed tower regenerator 2, two solution pump 7, solution heat exchangers 8 and be arranged between countercurrent packed tower dehumidifier 1 and countercurrent packed tower regenerator 2; Every one-level heat pump circulating system comprises the choke valve 3, compressor 4, condenser 5 and the evaporimeter 6 that are connected successively by refrigerant line, and condenser 5 housing at different levels is sequentially connected in series, and evaporimeter 5 housing at different levels is sequentially connected in series.
The present embodiment is with the difference of embodiment 1: countercurrent packed tower dehumidifier 1 bottom solution is connected wherein solution pump 7 entrance by pipeline, and the outlet of this solution pump 7 is connected in parallel the entrance of the evaporimeter 6 of series connection at different levels and the heat exchanger tube 82 of solution heat exchanger 8; Wherein the evaporimeter 6 of series connection at different levels exports the upper entrance being got back to countercurrent packed tower dehumidifier 1 by pipeline, in countercurrent packed tower dehumidifier 1 and after processed air heat and mass, gets back to the outlet at bottom of countercurrent packed tower dehumidifier 1; Wherein the other end of the heat exchanger tube 82 of solution heat exchanger 8 is connected to the bottom of countercurrent packed tower regenerator 2; The bottom solution of countercurrent packed tower regenerator 2 connects the entrance of another solution pump 7 ' by pipeline, the outlet of another solution pump 7 ' is connected in parallel condenser 5 entrance of series connection at different levels and the heat exchanger tube 81 of solution heat exchanger 8; Wherein the condenser 5 of series connection at different levels exports the top entry being connected to countercurrent packed tower regenerator 2 by pipeline, in countercurrent packed tower regenerator 2 and after processed air heat and mass, gets back to the outlet at bottom of countercurrent packed tower regenerator 2; Wherein the other end of the heat exchanger tube 81 of solution heat exchanger 8 is connected to bottom countercurrent packed tower dehumidifier 1.
Above-mentioned solution is salting liquid, and it is prior art, does not do too much explanation at this.
The various embodiments described above are only for illustration of the present invention; wherein the structure of each parts, connected mode and manufacture craft etc. all can change to some extent; every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (4)
1. a solution dehumidification air processor for multi-stage heat pump circulation driving, is characterized in that: the above heat pump circulating system of two-stage that it comprises a countercurrent packed tower dehumidifier, a countercurrent packed tower regenerator, two solution pump, solution heat exchangers and is arranged between countercurrent packed tower dehumidifier and countercurrent packed tower regenerator; Heat pump circulating system described in every one-level comprises the compressor, condenser, choke valve and the evaporimeter that are connected successively by refrigerant line, and described condenser shell at different levels is sequentially connected in series, and described evaporator shell at different levels is sequentially connected in series;
The bottom solution of described countercurrent packed tower dehumidifier connects wherein solution pump described in successively by pipeline, one heat exchanger tube of described solution heat exchanger, the described condenser of series connection at different levels arrives the upper entrance of described countercurrent packed tower regenerator, in described countercurrent packed tower regenerator with regeneration air heat and mass after, solution pump described in another is connected successively by pipeline at the outlet at bottom of described countercurrent packed tower regenerator, another heat exchanger tube of described solution heat exchanger, the upper entrance of described countercurrent packed tower dehumidifier got back to by the described evaporimeter of series connection at different levels, in described countercurrent packed tower dehumidifier with processed air heat and mass after, get back to the outlet at bottom of described countercurrent packed tower dehumidifier.
2. the solution dehumidification air processor of a kind of multi-stage heat pump circulation driving as claimed in claim 1, it is characterized in that: described heat pump circulating system at least comprises low temperature, middle temperature, high temperature three grades, wherein the described evaporator shell two ends of the heat pump circulating system of low-temperature level connect the top entry of described countercurrent packed tower dehumidifier and the described heat pump circulating system evaporator outlet of middle temperature level respectively, the described condenser of the heat pump circulating system of low-temperature level, as an auxiliary heat release, is independently placed in air.
3. the solution dehumidification air processor of a kind of multi-stage heat pump circulation driving as claimed in claim 2, it is characterized in that: described auxiliary heat release is except the condenser of the heat pump circulating system of low-temperature level, one devaporizer and a water pump are also set, the described condensator outlet of the heat pump circulating system of low-temperature level connects described devaporizer upper entrance by pipeline, described devaporizer outlet at bottom connects described pump entrance by pipeline, and described exit of pump connects the described condenser inlet of the heat pump circulating system of low-temperature level.
4. a solution dehumidification air processor for multi-stage heat pump circulation driving, is characterized in that: the above heat pump circulating system of two-stage that it comprises a countercurrent packed tower dehumidifier, a countercurrent packed tower regenerator, two solution pump, solution heat exchangers and is arranged between countercurrent packed tower dehumidifier and countercurrent packed tower regenerator; Heat pump circulating system described in every one-level comprises the choke valve, compressor, condenser and the evaporimeter that are connected successively by refrigerant line, and described condenser shell at different levels is sequentially connected in series, and described evaporator shell at different levels is sequentially connected in series;
Connect wherein solution pump entrance described in by pipeline bottom described countercurrent packed tower dehumidifier, described solution pump outlet is connected in parallel the described evaporator inlet of series connection at different levels and a heat exchanger tube of solution heat exchanger; The upper entrance of described countercurrent packed tower dehumidifier got back to by the described evaporimeter of series connection at different levels by pipeline, in described countercurrent packed tower dehumidifier with processed air heat and mass after, get back to the outlet at bottom of described countercurrent packed tower dehumidifier; The other end of the heat exchanger tube of described solution heat exchanger is connected to the bottom of described countercurrent packed tower regenerator; The bottom of described countercurrent packed tower regenerator connects solution pump entrance described in another by pipeline, and solution pump outlet described in another is connected in parallel the described condenser inlet of series connection at different levels and another heat exchanger tube of described solution heat exchanger; The described condenser of series connection at different levels is connected to the top entry of described countercurrent packed tower regenerator by pipeline, in described countercurrent packed tower regenerator with processed air heat and mass after, get back to the outlet at bottom of described countercurrent packed tower regenerator; The other end of another heat exchanger tube of described solution heat exchanger is connected to bottom described countercurrent packed tower dehumidifier.
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| CN111947444B (en) * | 2020-07-24 | 2022-03-01 | 浙江工业大学 | Closed cycle drying system based on open absorption heat pump |
| CN113198299B (en) * | 2021-04-21 | 2022-10-25 | 江苏科技大学 | Two-stage air compression and drying system and working method thereof |
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