CN101846368B - Solution dehumidifying fresh air handling unit combining heat pump drive and evaporative cooling - Google Patents

Solution dehumidifying fresh air handling unit combining heat pump drive and evaporative cooling Download PDF

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Publication number
CN101846368B
CN101846368B CN2010101759406A CN201010175940A CN101846368B CN 101846368 B CN101846368 B CN 101846368B CN 2010101759406 A CN2010101759406 A CN 2010101759406A CN 201010175940 A CN201010175940 A CN 201010175940A CN 101846368 B CN101846368 B CN 101846368B
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China
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solution
module
dehumidification
evaporative cooling
condenser
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CN2010101759406A
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Chinese (zh)
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CN101846368A (en
Inventor
刘晓华
张海强
张涛
江亿
陈晓阳
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清华大学
北京华创瑞风空调科技有限公司
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Abstract

The invention relates to a solution dehumidifying fresh air handling unit combining heat pump drive and evaporative cooling, which is characterized by comprising a solution circulating system, a heat pump system and an evaporative cooling water system, wherein the solution circulating system comprises an interstage solution circulation loop formed by connecting a dehumidifying module, a regeneration module and a solution circulating pump; the heat pump system comprises a solution heat exchange circulation loop formed by connecting a compressor, a first condenser, a throttle valve and an evaporator sequentially and a water heat exchange circulation loop formed by connecting the compressor, a solenoid valve, a second condenser, the throttle valve and the evaporator sequentially; the first condenser and the heat-exchange end of the evaporator are respectively connected with the regeneration module and the dehumidifying module through the solution circulating pump to form two intrastage solution circulation loops; the evaporative cooling water system comprises an evaporative cooling module, a water circulating pump and a water replenishing valve; and the evaporative cooling module is connected with the second condenser through the water circulating pump to form a circulation loop performing heat exchange with refrigeration working media. The solution dehumidifying fresh air handling unit can be widely applied to occasions without indoor ventilation for use.

Description

The new blower fan group of solution dehumidification that a kind of heat pump drives and evaporative cooling combines

Technical field

The present invention relates to a kind of new blower fan group, particularly drive the new blower fan group of solution dehumidification with the evaporative cooling combination about a kind of heat pump.

Background technology

At present, existing air-conditioning adopts the dehumidification by condensation processing mode mostly, adopts refrigeration machine to prepare cryogenic freezing water, air themperature is reduced to below the dew point, thereby realizes the dehumidification treatments process for new wind.Because the sink temperature very low (being lower than the dew-point temperature of air) that needs causes the evaporating temperature of refrigeration machine to reduce, thereby had a strong impact on the coefficient of performance of refrigeration machine.And the condensate that dehumidification by condensation produces is easy to grow mould, has a strong impact on indoor air quality.The solution dehumidification mode adopts the salting liquid with hygroscopic nature as working media, directly contacts with new wind and carries out heat and mass, realizes the dehumidification treatments process to new wind.The thermal source that the solution dehumidification mode can adopt low temperature is as the energy source of solution concentration regeneration, like the hot water of solar energy, heat supply network or used heat etc.The solution dehumidification mode is because in the advantage of energy savings with aspects such as raising indoor air quality etc., obtained extensive concern and in increasing building, uses.

Patent ZL03134688.X discloses the full heat recovery type fresh air air conditioner of a kind of solution; It takes away unnecessary condenser heat exhaust through auxiliary condenser (adopting the air cooling) is set; But because auxiliary condenser is to make air take away the limited in one's ability of heat to air heat (humidity does not change), condensation temperature is still than higher.ZL200610012259.3 discloses a kind of full recovery type heat thermal-drive solution ventilation of return air evaporative cooling unit that utilizes; It is through being provided with water replanishing device in the solution regeneration module; Thereby increase with solution that air contacts in the outlet humidity of moisture raising air; Take away the unnecessary heat exhaust of condenser, make condensation temperature maintain lower temperature levels.But the effect of regeneration module itself is to improve solution concentration, realizes the concentrated palingenesis for solution that moisturizing then directly causes the concentration of solution to reduce, and exists significant contradiction between the two.But all there is indoor air draft to utilize in above-mentioned two patents, promptly can handles energy consumption to reduce new wind through the energy of certain approach recovery indoor exhaust wind.But having under a lot of situation; There is not indoor exhaust wind to utilize; Patent ZL200610012268.2 discloses a kind of thermal-drive solution ventilation processor group of utilizing cooling water as low-temperature receiver, and it takes away unnecessary condenser heat exhaust through evaporation-cooled device (adopting cooling water as low-temperature receiver) is set, but owing to the heat exhaust of condenser is only taken away by solution regeneration system; Cause condensation temperature very high, significantly reduced the performance of solution dehumidification unit.In addition; In above-mentioned three patents, the heat exhaust of condenser is greater than the required heat of solution concentration regeneration in the system, if do not get rid of the unnecessary heat of this part condenser; Will make that condensation temperature constantly raises, thus appreciable impact the performance of heat pump and whole solution dehumidification unit.

Summary of the invention

To above problem; The purpose of this invention is to provide under a kind of situation that can supply utilize to no indoor exhaust wind, utilize the regeneration air draft to carry out evaporative cooling and produce cooling water and bear that the heat pump driven heat pump of condenser portion heat drives and the new blower fan group of solution dehumidification of evaporative cooling combination.

For realizing above-mentioned purpose, the present invention takes following technical scheme: the new blower fan group of solution dehumidification that a kind of heat pump drives and evaporative cooling combines is characterized in that: it comprises a solution recycle system, a heat pump and vaporized coolant stream system; Said solution recycle system comprises a dehumidification module, a regeneration module and a solution circulation pump; Said dehumidification module and regeneration module connect to form the inter-stage solution circulating through said solution circulation pump, and on the said inter-stage solution circulating between said dehumidification module and the regeneration module, a plate type heat exchanger are set; Said heat pump comprises a compressor, first condenser, second condenser, an evaporimeter, a choke valve and a magnetic valve; Wherein said compressor, first condenser, choke valve and evaporimeter connect to form the closed circuit with the solution heat exchange successively; Said compressor, magnetic valve, second condenser, choke valve and evaporimeter connect to form the closed circuit with the water heat exchange successively, and equal can refrigeration working medium in the two said closed circuits; The heat-exchange end of said first condenser and evaporimeter separately through a solution circulation pump respectively with said solution recycle system in regeneration module and dehumidification module connect to form solution circulating in two levels, and equal can dehumidification solution in the solution circulating in two said levels; Said vaporized coolant stream turnkey is drawn together an evaporative cooling module, a water-circulating pump and a water compensating valve, and said evaporative cooling module connects to form the closed circuit with the refrigeration working medium heat exchange through second condenser in said water-circulating pump and the said heat pump.

Said dehumidification module, regeneration module and evaporative cooling module are the gas-liquid direct contacted spraying module.

Dehumidification solution flow in the said inter-stage solution circulating is merely 1/10th of the said grade of dehumidification solution flow in the interior solution circulating.

It comprises the new blower fan group of being made up of said solution recycle system, said heat pump and said vaporized coolant stream system more than two, and two the above new blower fan groups adopt the parallelly connected pattern of the new wind of regeneration.

The new blower fan group of solution dehumidification that a kind of heat pump drives and evaporative cooling combines is characterized in that: heat pump and vaporized coolant stream system that it comprises the solution recycle system of series connection more than two, connects more than two; Said solution recycle system comprises a dehumidification module, a regeneration module and a solution circulation pump; Said dehumidification module and regeneration module connect to form the inter-stage solution circulating through said solution circulation pump, and on the said inter-stage solution circulating between said dehumidification module and the regeneration module, a plate type heat exchanger are set; Said heat pump comprises a compressor, first condenser, second condenser, an evaporimeter, a choke valve and a magnetic valve; Wherein said compressor, first condenser, choke valve and evaporimeter connect to form the circulation with the solution heat exchange successively; Said compressor, magnetic valve, second condenser, choke valve and evaporimeter connect to form the closed circuit with the water heat exchange successively, and equal can refrigeration working medium in the two said closed circuits; The heat-exchange end of said first condenser and evaporimeter separately through a solution circulation pump respectively with said solution recycle system in regeneration module and dehumidification module connect to form solution circulating in two levels, and equal can dehumidification solution in the solution circulating in two said levels; Said vaporized coolant stream turnkey is drawn together an evaporative cooling module, a water-circulating pump and a water compensating valve, and said evaporative cooling module is connected in series through second condenser in said water-circulating pump and all the said heat pumps and forms the closed circuit with the refrigeration working medium heat exchange.

Said dehumidification module, regeneration module and evaporative cooling module are the gas-liquid direct contacted spraying module.

Dehumidification solution flow in the said inter-stage solution circulating is merely 1/10th of the said grade of dehumidification solution flow in the interior solution circulating.

The present invention is owing to take above technical scheme; It has the following advantages: 1, the present invention is a working media with the solution with moisture pick-up properties; Solution recycle system, heat pump and vaporized coolant stream system are combined, make the cold of evaporimeter in the heat pump and the heat of condenser all obtain effective utilization, improve its dehumidifying effect thereby the cold of evaporimeter is used to reduce solution temperature; The heat part of condenser is as the thermal source of solution concentration regeneration; Another part is discharged through evaporative cooling, has reduced condensation temperature, has improved heat pump efficiency.2, regeneration module of the present invention makes the humidity of outlet air increase through take away the unnecessary heat of condenser for the vapor cooling system of air on the one hand, and the ability of carrying heat improves, thereby can well keep condensation temperature to be in reduced levels; Do not have moisturizing in the regeneration module on the other hand, fundamentally avoided improving the regeneration target of solution concentration and the reduction of moisturizing in the solution solution contradiction between the two, can significantly improve efficiency of energy utilization.3, the present invention uses salting liquid as dehumidification solution, and the effect that salting liquid has sterilization, purifies air can improve indoor air quality.The present invention can be widely used in the occasion that do not have indoor exhaust wind supply to utilize.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the invention 1

Fig. 2 is the structural representation of the embodiment of the invention 2

Fig. 3 is the structural representation of the embodiment of the invention 3

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the present invention is carried out detailed description.

Embodiment 1:

As shown in Figure 1, the new blower fan group of present embodiment comprises solution recycle system I, heat pump II and vaporized coolant stream system III.

The solution recycle system I comprises dehumidification module A, regeneration module B and solution circulation pump 1; Dehumidification module A and regeneration module B connect to form the inter-stage solution circulating through solution circulation pump 1, and on the inter-stage solution circulating between dehumidification module A and the regeneration module B, a plate type heat exchanger 2 are set.

The heat pump II comprise compressor 3, with the condenser 4 of solution heat exchange, with condenser 5, evaporimeter 6, choke valve 7 and the magnetic valve 8 of water heat exchange; Wherein compressor 3, condenser 4, choke valve 7 and evaporimeter 6 connect to form the closed circuit with the solution heat exchange successively; Compressor 3, magnetic valve 8, condenser 5, choke valve 7 and evaporimeter 6 connect to form the closed circuit with the water heat exchange successively; And equal can refrigeration working medium in two closed circuits can be controlled the distribution condition of condenser 5 heat exhausts through the start and stop of magnetic valve 8.The heat-exchange end of condenser 4 and evaporimeter 6 separately through a solution circulation pump 1 respectively with the solution recycle system I in regeneration module B and dehumidification module A connect to form solution circulating in two levels, and equal can dehumidification solution in the solution circulating in two levels.

Vaporized coolant stream system III comprises evaporative cooling module C, water-circulating pump 9 and water compensating valve 10, and evaporative cooling module C connects to form the closed circuit with the refrigeration working medium heat exchange through water-circulating pump 9 and condenser 5 in the heat pump II.

In the foregoing description, dehumidification module A, regeneration module B and evaporative cooling module C are the gas-liquid direct contacted spraying module, and wherein dehumidification module A is that solution directly contacts with air, are used for new wind cool-down dehumidification; Regeneration module B is that solution directly contacts with air, is used for the concentrated regeneration of solution; Evaporative cooling module C is that water directly contacts with air, is used to get rid of the unnecessary heat of condenser.

In the foregoing description, the dehumidification solution flow in the inter-stage solution circulating be merely in grade interior solution circulating (being in dehumidification module A or the regeneration module B) the dehumidification solution flow about 1/10th.

Embodiment 2:

As shown in Figure 2; The difference of present embodiment and embodiment 1 is; The new blower fan group of present embodiment adopts the pattern of the new wind parallel connection of regeneration, and it comprises the new blower fan group of two parallel connections, and the structure of two new blower fan groups is identical with embodiment 1; Wherein the new wind of one regeneration usefulness passes through regeneration module B1 and evaporative cooling module C1 successively, and the new wind of another burst regeneration usefulness passes through regeneration module B2 and evaporative cooling module C2 successively.

In the foregoing description, the number of the new blower fan group of parallel connection also can be for more than two, and concrete number can be confirmed according to the operating position at scene.

Embodiment 3:

As shown in Figure 3; The difference of present embodiment and embodiment 1 is; The new blower fan group of present embodiment adopts the pattern of the new wind series connection of regeneration; It comprises heat pump II and a vaporized coolant stream system III of the solution recycle system I of two series connection, two series connection; And the condenser in the two heat pump II 5 and evaporative cooling module C in the vaporized coolant stream system III are connected in series and form the closed circuit with the refrigeration working medium heat exchange, and outdoor new wind passes through dehumidification module A1, A2 at first successively, passes through regeneration module B2, B1 then successively.

In the foregoing description, the solution recycle system I of series connection and the number of heat pump II also can be for more than two, and concrete number can be confirmed according to the operating position at scene.

Analyze the flow process and the state variation situation thereof of air and solution below according to embodiment 3; As shown in Figure 3; The figure cathetus is represented the dehumidification solution of circulation in the level; Dotted line is represented the dehumidification solution (plate type heat exchanger 2 of promptly flowing through) of inter-stage circulation, and chain-dotted line is represented circularly cooling working medium, and bilinear is represented recirculated cooling water.

Upper strata of the present invention passage is the regeneration air stream passage, is mainly used in the concentrated regeneration of dehumidification solution, and through the evaporative cooling of air being taken away the unnecessary heat exhaust of condenser 4,5; Lower floor is new wind treatment channel, is mainly used in new wind cool-down dehumidification.The outer new wind of lower chamber contacts with low temperature dehumidification solution at different levels through dehumidification module A1, A2 successively and carries out heat and mass, and newly wind is sent into after by cool-down dehumidification indoor.The upper strata adopts outdoor new wind as regeneration air stream, and outdoor new wind passes through regeneration module B2, B1 successively, contacts with pyrosol in regeneration module B2, the B1 to carry out heat and mass solution is regenerated; Get into evaporative cooling module C evaporative cooling again and produce cooling water.Water compensating valve 10 is used for evaporative cooling module C is carried out moisturizing, and its amount of makeup water only equals to pass in and out the new rheumatism degree recruitment of evaporative cooling module C.The evaporimeter 6 of heat pump II is respectively applied for the dehumidification solution that cooling gets into dehumidification module A1, A2; The heat exhaust of condenser 4 is used to heat the dehumidification solution that gets into regeneration module B1, B2; The cooling water that evaporative cooling module C produces at first is used to cool off the condenser 5 on the right; Then cool off the condenser 5 on the left side, get back to evaporative cooling module C then and continue circulation.The evaporating temperature of the heat pump II on the left side and condensation temperature all are higher than the relevant temperature of the heat pump II on the right, promptly adopt the low-temperature receiver cooling entering dehumidification module A1 of different temperatures, the dehumidification solution of A2.The lower weak solution of the higher concentrated solution of the temperature that flows out from regeneration module B1 or B2 and the temperature that flows out from dehumidification module A1 or A2 through the plate type heat exchanger 2 on the inter-stage solution circulating to reclaim heat.

The present invention only describes with the foregoing description; The structure of each parts, the position is set and connects and all can change to some extent; On the basis of technical scheme of the present invention; All improvement and equivalents of individual component being carried out according to the principle of the invention all should not got rid of outside protection scope of the present invention.

Claims (8)

1. a heat pump drives the new blower fan group of solution dehumidification that combines with evaporative cooling, it is characterized in that: it comprises that a solution recycle system, a heat pump and a vaporized coolant stream unite;
Said solution recycle system comprises a dehumidification module, a regeneration module and a solution circulation pump; Said dehumidification module and regeneration module connect to form the inter-stage solution circulating through said solution circulation pump, and on the said inter-stage solution circulating between said dehumidification module and the regeneration module, a plate type heat exchanger are set;
Said heat pump comprises a compressor, first condenser, second condenser, an evaporimeter, a choke valve and a magnetic valve; Wherein said compressor, first condenser, choke valve and evaporimeter connect to form the closed circuit with the solution heat exchange successively; Said compressor, magnetic valve, second condenser, choke valve and evaporimeter connect to form the closed circuit with the water heat exchange successively, and equal can refrigeration working medium in the two said closed circuits; The heat-exchange end of said first condenser and evaporimeter separately through a solution circulation pump respectively with said solution recycle system in regeneration module and dehumidification module connect to form solution circulating in two levels, and equal can dehumidification solution in the solution circulating in two said levels;
Said vaporized coolant stream turnkey is drawn together an evaporative cooling module, a water-circulating pump and a water compensating valve, and said evaporative cooling module connects to form the closed circuit with the refrigeration working medium heat exchange through second condenser in said water-circulating pump and the said heat pump.
2. the new blower fan group of solution dehumidification that a kind of heat pump as claimed in claim 1 drives and evaporative cooling combines, it is characterized in that: said dehumidification module, regeneration module and evaporative cooling module are the gas-liquid direct contacted spraying module.
3. the new blower fan group of solution dehumidification that a kind of heat pump as claimed in claim 1 drives and evaporative cooling combines is characterized in that: the dehumidification solution flow in the said inter-stage solution circulating is merely 1/10th of the said grade of dehumidification solution flow in the interior solution circulating.
4. the new blower fan group of solution dehumidification that a kind of heat pump as claimed in claim 2 drives and evaporative cooling combines is characterized in that: the dehumidification solution flow in the said inter-stage solution circulating is merely 1/10th of the said grade of dehumidification solution flow in the interior solution circulating.
5. drive the new blower fan group of solution dehumidification with the evaporative cooling combination like claim 1 or 2 or 3 or 4 described a kind of heat pumps; It is characterized in that: it comprises the new blower fan group of being made up of said solution recycle system, said heat pump and said vaporized coolant stream system more than two, and two the above new blower fan groups adopt the parallelly connected pattern of the new wind of regeneration.
6. a heat pump drives the new blower fan group of solution dehumidification that combines with evaporative cooling, it is characterized in that: it comprises the solution recycle system of series connection more than two, the heat pump of series connection more than two and a vaporized coolant stream are united;
Said solution recycle system comprises a dehumidification module, a regeneration module and a solution circulation pump; Said dehumidification module and regeneration module connect to form the inter-stage solution circulating through said solution circulation pump, and on the said inter-stage solution circulating between said dehumidification module and the regeneration module, a plate type heat exchanger are set;
Said heat pump comprises a compressor, first condenser, second condenser, an evaporimeter, a choke valve and a magnetic valve; Wherein said compressor, first condenser, choke valve and evaporimeter connect to form the circulation with the solution heat exchange successively; Said compressor, magnetic valve, second condenser, choke valve and evaporimeter connect to form the closed circuit with the water heat exchange successively, and equal can refrigeration working medium in the two said closed circuits; The heat-exchange end of said first condenser and evaporimeter separately through a solution circulation pump respectively with said solution recycle system in regeneration module and dehumidification module connect to form solution circulating in two levels, and equal can dehumidification solution in the solution circulating in two said levels;
Said vaporized coolant stream turnkey is drawn together an evaporative cooling module, a water-circulating pump and a water compensating valve, and said evaporative cooling module is connected in series through second condenser in said water-circulating pump and all the said heat pumps and forms the closed circuit with the refrigeration working medium heat exchange.
7. the new blower fan group of solution dehumidification that a kind of heat pump as claimed in claim 6 drives and evaporative cooling combines, it is characterized in that: said dehumidification module, regeneration module and evaporative cooling module are the gas-liquid direct contacted spraying module.
8. like the new blower fan group of solution dehumidification of claim 6 or 7 described a kind of heat pumps drivings and evaporative cooling combination, it is characterized in that: the dehumidification solution flow in the said inter-stage solution circulating is merely 1/10th of the said grade of dehumidification solution flow in the interior solution circulating.
CN2010101759406A 2010-05-12 2010-05-12 Solution dehumidifying fresh air handling unit combining heat pump drive and evaporative cooling CN101846368B (en)

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TWI409417B (en) * 2010-12-17 2013-09-21 Univ Nat Taiwan Air conditioner apparatus having a dehumidifying liquid thereon
CN102175054B (en) * 2011-02-21 2013-04-10 黄真银 Efficient heat pump full-heat recovery solution-type new fan and energy regulating method thereof
US20130111940A1 (en) * 2011-04-12 2013-05-09 Mitsubishi Heavy Industries, Ltd. Heat and cold sources of temperature and humidity independent control air conditioning system
CN102798183A (en) * 2012-08-10 2012-11-28 南京韩威南冷制冷集团有限公司 Solution air-conditioning unit
CN103090484B (en) * 2013-01-18 2015-08-05 清华大学 A kind of humiture independence control air conditioner system and using method thereof
CN103075769B (en) * 2013-02-21 2014-12-03 任承钦 Fresh air conditioning unit capable of realizing energy recovery and free cooling
CN104864506B (en) * 2015-04-03 2017-12-19 华南理工大学 A kind of air cleaning unit and air purification method with moisture control function
CN104930620A (en) * 2015-07-15 2015-09-23 江苏格瑞力德空调制冷设备有限公司 Double-cold-source fresh air unit utilizing solution for heat dissipation
CN105299801A (en) * 2015-10-21 2016-02-03 杭州清稞节能环保科技有限公司 Evaporative cooling type direct-expansion air processor

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