CN103574801A - Anti-freezing solution regenerating device for air-conditioning system - Google Patents
Anti-freezing solution regenerating device for air-conditioning system Download PDFInfo
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- CN103574801A CN103574801A CN201210278165.6A CN201210278165A CN103574801A CN 103574801 A CN103574801 A CN 103574801A CN 201210278165 A CN201210278165 A CN 201210278165A CN 103574801 A CN103574801 A CN 103574801A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
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Abstract
The invention discloses an anti-freezing solution regenerating device for an air-conditioning system. The anti-freezing solution regenerating device comprises a high-temperature heat source area, an anti-freezing solution collecting disc, a low-temperature cold source area, a condensate water collecting disc, a spray thrower, a gas circulation fan and a gas circulation duct, wherein the gas circulation fan is arranged in the gas circulation duct which is used for communicating the high-temperature heat source area with the low-temperature cold source area, so as to drive circulating gas to flow from the high-temperature heat source area to the low-temperature cold source area, absorb moisture in the high-temperature heat source area, separate out condensate water in the low-temperature cold source area and then return to the high-temperature heat source area to flow in a circulating mode along the gas circulation duct. When heating operation of the regenerating device is performed in winter, the regenerating device has the characteristics of anti-freezing solution regeneration, heat recovery, frostless operation of a heat pump and the like, an anti-freezing solution is prevented from being frozen, and technical guarantee is provided for efficient, continuous and stable heat supply of the air-conditioning system of the heat pump through an evaporative condenser or a cooling tower.
Description
Technical field
The present invention relates to a kind of air conditioner technical field, particularly for the regenerating unit of the anti-freezing solution of air-conditioning system.
Background technology
Adopt evaporative condenser or cooling tower (water-cooled energy tower) to provide heat energy to heat-obtaining in outdoor air and for the heat pump type air conditioning system in winter, to realize important channel efficient, stable heating, compare with air source heat pump, its heat exchange efficiency is high, save heat exchanger materials, can realize continuous heat supply, there is significant energy-saving and emission-reduction prospect.But, refrigerating medium in evaporative condenser or cooling tower (cooling water) temperature is during lower than 0 ℃, refrigerating medium will glaciation, may there is the danger that is inflated rhegma in the parts of evaporative condenser or cooling tower and connection thereof, at this moment select the anti-freezing solution of suitable concn can guarantee that each parts work at low temperatures.In addition, when heat pump working condition, evaporative condenser or cooling tower are after air heat-obtaining, and the temperature of air reduces, and can make airborne moisture content condensation, this partial condensation water enters in anti-freezing solution, to cause again anti-freezing solution dilution, along with anti-freezing solution concentration reduces, the freezing point of anti-freezing solution can improve, as improved not in time the concentration (or claiming regeneration of waste liquor) of anti-freezing solution, the parts such as the solution pool of evaporative condenser or cooling tower, water pump still have expansion rhegma risk.
For addressing this problem, many by the antifreezing agents of the solution interpolation high concentration being diluted at present, the anti-freezing solution being diluted overflowing is left in indoor or underground solution holding vessel, after outdoor temperature raises, weak solution is pumped in evaporative condenser or cooling tower again, utilize airborne energy to realize regeneration of waste liquor, the method must need the very antifreezing agent of high concentration, jumbo concentrated solution and weak solution holding vessel, cause antifreezing agent use amount large, solution storage area is huge, the high operating cost with increasing antifreezing agent of initial cost, greatly limited evaporative condenser or cooling tower as heat pump heat-obtaining device the applicable region in low temp area.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of anti-freezing solution regenerating unit of air-conditioning system is provided, during for heating operation in the winter time, the stable anti-freezing solution concentration that improves, simultaneously winter, heat-obtaining from environment there will not be frosting and can continuity work, realized whole year operation.
For achieving the above object, technical scheme of the present invention is:
An anti-freezing solution regenerating unit for air-conditioning system, comprises high temperature heat source district, anti-freezing solution catch tray, low temperature cold source region, condensed water catch tray, spray thrower, gas circulation blower fan and gas circulation air path; Wherein, described high temperature heat source district is provided with high temperature heat source, the import of described spray thrower is connected in the low concentration anti-freezing solution passage communicating with air-conditioning system condensing plant, the low concentration anti-freezing solution flowing out in the described spray thrower evaporation and concentration behind high temperature heat source district of flowing through, process and described recyclegas generation effect of mass transmitting, the moisture content of low concentration anti-freezing solution is passed to recyclegas, anti-freezing solution after simultaneously concentrating enters anti-freezing solution catch tray, and the solution in described anti-freezing solution catch tray enters the highly concentrated solution passage communicating with air-conditioning system condensing plant; Described low temperature cold source region is provided with low temperature cold source, and described condensed water catch tray is arranged at below, low temperature cold source region, and is provided with condensation-water drain; Described gas circulation blower fan is arranged in the gas circulation air channel that is communicated with high temperature heat source district and low temperature cold source region, to drive recyclegas to flow through low temperature cold source region from high temperature heat source district, in high temperature heat source district, absorb moisture content and separate out after condensed water in Low Temperature Thermal source region, recyclegas continues to be back to high temperature heat source district along described gas circulation air channel and circulates.
Wherein, further, the relative position arrangement in described gas circulation blower fan, high temperature heat source district and low temperature cold source region is: high temperature heat source district-gas circulation blower fan-low temperature cold source region, gas circulation blower fan-high temperature heat source district-low temperature cold source region or high temperature heat source district-low temperature cold source region-gas circulation blower fan.
Further, in described high temperature heat source district, the calorific value exchanged form of recyclegas and low concentration anti-freezing solution is following current, adverse current, mixed flow or cross-flow.
Further, described high temperature heat source is arranged between described spray thrower and anti-freezing solution catch tray; Or described high temperature heat source is arranged at the recyclegas import department in described high temperature heat source district and the outside of described spray thrower, so that recyclegas carries out heat exchange by the below of described spray thrower after heating; Or before described high temperature heat source is arranged at the import of described spray thrower, so that low concentration anti-freezing solution first through heating, enters described spray thrower again and recyclegas carries out heat exchange.
Further, the carrier of described high temperature heat source is cold-producing medium, water, gas or oil, or different forms is the thermal source that electrothermal, steam-type, combustion type, fuel oil type, oily hot type or fume afterheat mode produce; The carrier of described low temperature cold source is cold-producing medium, water, gas or oil.
As preferred version, between described spray thrower and described anti-freezing solution catch tray, be provided with Sprayer Circulation pump, described anti-freezing solution catch tray is also connected with the low concentration anti-freezing solution passage in air-conditioning system.
As preferred version, described highly concentrated solution passage is provided with solution pump.
As preferred version, described spray thrower below is provided with heat exchange filler.
Further, the external condensing plant of described regenerating unit is evaporative condenser, or the cooling tower being connected and water cooled condenser.
The above recyclegas adopts air, nitrogen or inert gas.
Adopt the advantage of such scheme:
1, realized regeneration of waste liquor, avoided anti-freezing solution frozen: low concentration anti-freezing solution and high temperature heat source and recyclegas carry out heat exchange, moisture content in low concentration anti-freezing solution is recycled gas and takes away, and the concentration of low concentration anti-freezing solution is raise, and continues to meet the antifreeze demand of system operation.
2, realize the recycling of the energy: hot and humid recyclegas and the low-temperature low-pressure refrigerant of low temperature cold source carry out heat exchange, and separate out condensed water, reclaimed the condensation heat in regenerative process, improved the energy utilization rate of system.
3, realized the frostless operation of heat pump: the low concentration anti-freezing solution in evaporative condenser or cooling tower is through anti-freezing solution regenerating unit, improved solution concentration, evaporative condenser or cooling tower and parts generation frosting thereof or icing phenomenon in the time of can avoiding heat pump working condition, realize heat pump working condition and move continuously without defrosting.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention one.
Fig. 2 is the structural representation of the embodiment of the present invention two.
Fig. 3 is the structural representation of the embodiment of the present invention three.
Fig. 4 is the structural representation of the embodiment of the present invention four.
Fig. 5 is the structural representation that this regenerating unit is connected with evaporative condenser.
Fig. 6 is connected with evaporative condenser and increases solution pump structure schematic diagram for this regenerating unit.
Fig. 7 is the structural representation that this regenerating unit is connected with water cooled condenser with cooling tower.
Fig. 8 is the structural representation that the present invention adopts electrothermal thermal source.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
An anti-freezing solution regenerating unit for air-conditioning system, comprises high temperature heat source district, anti-freezing solution catch tray, low temperature cold source region, condensed water catch tray, spray thrower, gas circulation blower fan and gas circulation air path; Wherein, high temperature heat source district and low temperature cold source district are respectively equipped with corresponding heat exchange zone, and are respectively equipped with high temperature heat source and low temperature cold source.
Embodiment 1
As shown in Figure 1, comprise: high temperature heat source 1a, anti-freezing solution catch tray 2a, low temperature cold source 1b, condensed water catch tray 2b and spray thrower 3, gas circulation blower fan 4 and gas circulation air path 5, the carrier of high temperature heat source 1a and low temperature cold source 1b all preferably flows in the high temperature heat source 1a of a coil arrangement and low temperature cold source 1b.
The low concentration anti-freezing solution passage 9 that the import connection of described spray thrower 3 communicates with air-conditioning system condensing plant, the below of spray thrower 3 is provided with high temperature heat source 1a, after the high temperature heat source 1a that the low concentration anti-freezing solution spraying out in spray thrower 3 is flowed through in high temperature heat source district, anti-freezing solution evaporation and concentration enters anti-freezing solution catch tray 2a, described anti-freezing solution catch tray 2a is provided with concentrated solution outlet 8a, and the solution in anti-freezing solution catch tray 2a enters the highly concentrated solution passage communicating with air-conditioning system condensing plant.Condensed water catch tray 2b is arranged at below, low temperature cold source region and is provided with condensation delivery port 8b, and condensed water can be used for corresponding air-conditioning system or do other purposes after collecting.Gas circulation blower fan 4 is arranged in the circulation air path that is communicated with high temperature heat source district and low temperature cold source region, to drive recyclegas to flow through low temperature cold source region from high temperature heat source district, in high temperature heat source district, absorb moisture content and separate out after condensed water in Low Temperature Thermal source region, recyclegas continues to be back to high temperature heat source district along described gas circulation air channel and circulates.
The air-conditioning system condensing plant being connected with above-mentioned regenerating unit is evaporative condenser, or the cooling tower being connected and water cooled condenser, can also be condensing plant applicable in other air-conditioning system certainly.
When the carrier of high temperature heat source and low temperature cold source is cold-producing medium, this cold-producing medium is for directly coming from the cold-producing medium using in air-conditioning system, the import 6a of described high temperature heat source 1a connects the high temperature refrigerant passage communicating with air-conditioning system, the outlet 7a of high temperature heat source 1a connects another high temperature communicating with air-conditioning system or middle temperature coolant channel, the import 6b of low temperature cold source 1b connects the low-temperature refrigerant passage communicating with air-conditioning system, and the outlet 7b of low temperature cold source 1b connects another low-temperature refrigerant passage communicating with air-conditioning system.Described spray thrower 3 is to high temperature heat source spray low concentration anti-freezing solution, circulating fan 4 drives recycle gas stream to cross high temperature heat source district simultaneously, the high temperature refrigerant of coming from the import of high temperature heat source 1a and spray solution and recyclegas carry out heat exchange, cold-producing medium flows away from the outlet of high temperature heat source 1a after emitting heat, after moisture content in recyclegas absorbent solution, the temperature of gas and water capacity all raise, and simultaneously after the water evaporates of solution, concentration raises and falls into after anti-freezing solution catch tray 2a from concentrated solution outlet 8a outflow; Described hot and humid recyclegas continues to flow through low temperature cold source region, carry out heat exchange with the low-temperature refrigerant of coming from the import of low temperature cold source 1b, the temperature of recyclegas declines and separates out condensed water, condensed water flows away from the delivery port 8b of condensed water catch tray, after cold-producing medium in low temperature cold source 1b absorbs heat simultaneously, from the outlet of low temperature cold source 1b, flow away, described recyclegas is back to high temperature heat source district along circulation air path under the driving of blower fan 4 to be continued to circulate.Preferably, the relative position arrangement of gas circulation blower fan, high temperature heat source and the low temperature cold source in the present embodiment is: high temperature heat source district-gas circulation blower fan-low temperature cold source region.
Preferably, spray thrower 3 lower floors also can be provided with heat exchange filler 11, to increase heat exchange area, improve heat exchange efficiency.
Embodiment 2
The present embodiment is as a kind of improvement of embodiment 1, as shown in Figure 2, compare with embodiment 1, in order to be conducive to low concentration anti-freezing solution evaporation moisture content and to form concentrated solution, its difference is, increased Sprayer Circulation pump 10, the import of described Sprayer Circulation pump connects anti-freezing solution catch tray 2a, Sprayer Circulation delivery side of pump connects spray thrower 3, low concentration anti-freezing solution passage 9 connects anti-freezing solution catch tray 2a, can make like this spray solution repeatedly circulate through high temperature heat source 1a, thereby realize the requirement that the how rear anti-freezing solution concentration of water evaporates raises.
The present embodiment is as a kind of improvement of embodiment 1, as shown in Figure 3, compare with embodiment 1, its difference is, the high temperature heat source district of this regenerating unit is provided with high temperature heat source 1a, and described high temperature heat source 1a is positioned at spray thrower 3 outsides, is arranged at the import department of recyclegas, the carrier of high temperature heat source 1a adopts the cold-producing medium in air-conditioning system equally, described high temperature heat source 1a can be designed to be conducive to any structure of heat cycles gas.The below of spray thrower 3 arranges heat exchange filler 11.The recyclegas gas temperature after high temperature heat source 1a of flowing through raises, the anti-freezing solution that then high-temperature gas and spray thrower 3 spray out carries out heat exchange, after moisture content in high-temperature gas absorption anti-freezing solution, the water capacity of gas raises, simultaneously after the water evaporates of solution, concentration raises and falls into after anti-freezing solution catch tray 2a from concentrated solution outlet 8a outflow, and then recyclegas and low temperature cold source 1b carry out heat exchange.
The present embodiment is as a kind of improvement of embodiment 1, as shown in Figure 4, compare with embodiment 1, its difference is, the high temperature heat source district of this regenerating unit is provided with high temperature heat source 1a,, before high temperature heat source 1a is arranged at the import of described spray thrower 3, the carrier of high temperature heat source 1a adopts the cold-producing medium in air-conditioning system equally, described high temperature heat source 1a can be designed to be conducive to heat to any structure of high temperature heat source carrier, such as pipe clamp nested structure.The below of spray thrower 3 arranges heat exchange filler 11.Described high temperature heat source is used for heating low concentration anti-freezing solution, the low concentration anti-freezing solution solution temperature after high temperature heat source 1a of flowing through raises, then high temperature low concentration anti-freezing solution carries out heat exchange with recyclegas again, after moisture content in recyclegas absorbent solution, the temperature of gas and water capacity all raise, simultaneously after the water evaporates of solution, concentration raises and falls into after solution catch tray from concentrated solution outlet 8a outflow, and then recyclegas and low temperature cold source 1b carry out heat exchange.
Regenerating unit in above-described embodiment 1 is connected with evaporative condenser 12, as shown in Figure 5, adopt the mode being connected with evaporative condenser, low concentration anti-freezing solution in evaporative condenser 12 is through regenerating unit, after water evaporates in anti-freezing solution, concentration raises, and highly concentrated solution is back to evaporative condenser 12 from concentrated solution outlet 8a.
Embodiment 6
The present embodiment is as a kind of improvement project of embodiment 5, as shown in Figure 6, in order to make the more smooth and easy evaporative condenser 12 that is back to of highly concentrated solution, concentrated solution outlet 8a has increased solution pump 13, and highly concentrated solution is back to evaporative condenser 12 after 13 superchargings of solution pump.
Embodiment 7
Regenerating unit in above-described embodiment 1 is connected with water cooled condenser 15 with cooling tower 14, as shown in Figure 7, adopt the mode being connected with water cooled condenser 15 with cooling tower 14, low concentration anti-freezing solution in cooling tower 14 is through regenerating unit, after water evaporates in anti-freezing solution, concentration raises, and highly concentrated solution is back to cooling tower 14 from concentrated solution outlet.As preferred version, the outlet of the concentrated solution of the present embodiment also can be provided with the solution pump that supercharging is used.
In the apparatus structure of the various embodiments described above, the carrier of described high temperature heat source is except being used the cold-producing medium in air-conditioning system, can also be water, gas, oil, or different forms be the thermal source that electrothermal, steam-type, combustion type, fuel oil type, oily hot type, fume afterheat etc. produce; The carrier of described low temperature, except using the cold-producing medium in air-conditioning system, can also be also water, gas, wet goods.When adopting the outside carrier of introducing as high temperature heat source and low temperature cold source, obviously, main change is to be that corresponding carrier inlet all needs to be connected with low-temperature receiver, thermal source in external circulating system with outlet.Particularly, the structural representation that adopts electric heater 16 class thermals source has been shown in Fig. 8.Gas adopts the gases such as air or nitrogen.The relative position arrangement of gas circulation blower fan, high temperature heat source and low temperature cold source can also be: gas circulation blower fan-high temperature heat source-low temperature cold source, high temperature heat source-low temperature cold source-gas circulation blower fan; In high temperature heat source district, the mass transfer exchanged form of recyclegas and anti-freezing solution can be following current, adverse current, mixed flow or cross-flow.
As mentioned above, just can realize preferably the present invention, above-described embodiment is only preferred embodiment of the present invention, is not used for limiting practical range of the present invention; Be that all equalizations of doing according to content of the present invention change and modify, all by the claims in the present invention scope required for protection, contained.
Claims (10)
1. for an anti-freezing solution regenerating unit for air-conditioning system, it is characterized in that, comprise high temperature heat source district, anti-freezing solution catch tray, low temperature cold source region, condensed water catch tray, spray thrower, gas circulation blower fan and gas circulation air path; Wherein,
Described high temperature heat source district is provided with high temperature heat source, the import of described spray thrower is connected in the low concentration anti-freezing solution passage communicating with air-conditioning system condensing plant, the low concentration anti-freezing solution flowing out in the described spray thrower evaporation and concentration behind high temperature heat source district of flowing through enters anti-freezing solution catch tray, and the solution in described anti-freezing solution catch tray enters the highly concentrated solution passage communicating with air-conditioning system condensing plant;
Described low temperature cold source region is provided with low temperature cold source, and described condensed water catch tray is arranged at below, low temperature cold source region, and is provided with condensation-water drain;
Described gas circulation blower fan is arranged in the gas circulation air channel that is communicated with high temperature heat source district and low temperature cold source region, to drive recyclegas to flow through ， high temperature heat source district, low temperature cold source region absorption moisture content from high temperature heat source district and continue to be back to high temperature heat source district along described gas circulation air channel condensed water is separated out in Low Temperature Thermal source region, circulate.
2. anti-freezing solution regenerating unit as claimed in claim 1, is characterized in that: the relative position arrangement in described gas circulation blower fan, high temperature heat source district and low temperature cold source region is: high temperature heat source district-gas circulation blower fan-low temperature cold source region, gas circulation blower fan-high temperature heat source district-low temperature cold source region or high temperature heat source district-low temperature cold source region-gas circulation blower fan.
3. anti-freezing solution regenerating unit as claimed in claim 1, is characterized in that: in described high temperature heat source district, the mass transfer exchanged form of recyclegas and low concentration anti-freezing solution is following current, adverse current, mixed flow or cross-flow.
4. anti-freezing solution regenerating unit as claimed in claim 2, is characterized in that, described high temperature heat source is arranged between described spray thrower and anti-freezing solution catch tray; Or described high temperature heat source is arranged at the recyclegas import department in described high temperature heat source district and the outside of described spray thrower, so that recyclegas carries out heat exchange by the below of described spray thrower after heating; Or before described high temperature heat source is arranged at the import of described spray thrower, so that low concentration anti-freezing solution first through heating, enters described spray thrower again and recyclegas carries out heat exchange.
5. anti-freezing solution regenerating unit according to claim 4, it is characterized in that: the carrier of described high temperature heat source is cold-producing medium, water, gas or oil, or different forms is the thermal source that electrothermal, steam-type, combustion type, fuel oil type, oily hot type or fume afterheat mode produce; The carrier of described low temperature cold source is cold-producing medium, water, gas or oil.
6. as the anti-freezing solution regenerating unit as described in arbitrary in claim 1-5, it is characterized in that: between described spray thrower and described anti-freezing solution catch tray, be provided with Sprayer Circulation pump, described anti-freezing solution catch tray is also connected with the low concentration anti-freezing solution passage in air-conditioning system.
7. as the anti-freezing solution regenerating unit as described in arbitrary in claim 1-5, it is characterized in that: described highly concentrated solution passage is provided with solution pump.
8. as the anti-freezing solution regenerating unit as described in arbitrary in claim 1-5, it is characterized in that: described spray thrower below is provided with heat exchange filler.
9. as the anti-freezing solution regenerating unit as described in arbitrary in claim 1-5, it is characterized in that: the external condensing plant of described regenerating unit is evaporative condenser, or the cooling tower being connected and water cooled condenser.
10. as the anti-freezing solution regenerating unit as described in arbitrary in claim 1-5, it is characterized in that: described recyclegas adopts air, nitrogen or inert gas.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210278165.6A CN103574801A (en) | 2012-08-06 | 2012-08-06 | Anti-freezing solution regenerating device for air-conditioning system |
| PCT/CN2012/079999 WO2014023033A1 (en) | 2012-08-06 | 2012-08-13 | Anti-icing solution regeneration apparatus for use in air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210278165.6A CN103574801A (en) | 2012-08-06 | 2012-08-06 | Anti-freezing solution regenerating device for air-conditioning system |
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| CN103574801A true CN103574801A (en) | 2014-02-12 |
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| CN201210278165.6A Pending CN103574801A (en) | 2012-08-06 | 2012-08-06 | Anti-freezing solution regenerating device for air-conditioning system |
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| Country | Link |
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| CN (1) | CN103574801A (en) |
| WO (1) | WO2014023033A1 (en) |
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| CN103940164A (en) * | 2014-05-16 | 2014-07-23 | 清华大学 | Solution spraying type frostless air source heat pump device |
| CN111895554A (en) * | 2020-08-03 | 2020-11-06 | 南京工程学院 | Heat source tower solution concentration control device and method based on multistage evaporation and condensation |
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| WO2014023033A1 (en) | 2014-02-13 |
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