CN102901374B - Heat source tower device with pre-setting function - Google Patents
Heat source tower device with pre-setting function Download PDFInfo
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- CN102901374B CN102901374B CN201210365696.9A CN201210365696A CN102901374B CN 102901374 B CN102901374 B CN 102901374B CN 201210365696 A CN201210365696 A CN 201210365696A CN 102901374 B CN102901374 B CN 102901374B
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Abstract
The invention discloses a heat source tower device with a pre-setting function. The heat source tower device is characterized by comprising a solution loop, an air and condensation water loop and a control loop, wherein the solution loop comprises a spraying device (2), a filler (3), a first finned tube exchanger (4), a second finned tube exchanger (5), a third finned tube exchanger (6), a fourth finned tube exchanger (7), an electric three-way regulating valve (8), a solution collecting tank (9) and a connecting pipeline; the solution inlet end is connected with the input end (8a) of the electric three-way regulating valve; and a first output end (8b) of the electric three-way regulating valve is respectively connected with the input ends of the first finned tube exchanger (4), the second finned tube exchanger (5), the third finned tube exchanger (6) and the fourth finned tube exchanger (7). The phenomena that the amount of condensation water entering from air to solution in a heat source tower under working conditions in winter in a heat source tower heat pump unit is reduced and the water vapor latent heat in air is utilized are avoided.
Description
Technical field
The present invention relates to a kind of for heat source tower heat pump unit operation feature and requirement and the novel heat source tower apparatus proposing belongs to refrigeration, design of air conditioning and manufacturing technology field.
Background technology
Along with the raising of people's living standard and more and more higher to the requirement of human settlement's comfortableness, air-conditioning system has become requisite part in building system.Heat source tower heat pump unit is as a kind of novel air conditioning system Cooling and Heat Source, and under summer cooling condition, itself and traditional water-cooled handpiece Water Chilling Units are as good as, and have stable, efficient feature; Under the operating mode that heats in the winter time, it is by solution in heat source tower and air heat-exchange, and the heat that absorbs air provides tow taste heat for source pump evaporation ends, has fundamentally avoided the problem of conventional air source heat pump winter operation frosting.This unit has multiple air-conditioning system advantage concurrently, there is its unique advantage compared with water-cooled handpiece Water Chilling Units, net for air-source heat pump units, earth source heat pump unit, especially in the winter time air themperature is not too low, and the larger Xia Redong cryogenic region of humidity has great application prospect.
When heat source tower heat pump unit winter heating moves, in heat source tower, carry out heat and mass with air by solution, from air, absorb heat, the heat exchanging can be divided into sensible heat part and latent heat part, wherein the size of sensible heat part (heat transmit) depends on solution and air temperature difference size between the two, and the size of latent heat part (matter transmission) depends on the poor size of steam partial pressure on the two contact-making surface.When surrounding air humidity is larger, when water in air vapor pressure is greater than solution surface steam partial pressure, in heat source tower, airborne steam just can condense and enter solution, makes that solution concentration is thinning, freezing point temperature raises.For guaranteeing that source pump continues reliability service, avoid solution solidifies in system, must make solution solidifies point temperature lower than unit evaporating temperature and outdoor environment temperature.Therefore, along with the increase of condensing capacity in caloic transmittance process in tower, after solution concentration reduces, need to regenerate to solution by regenerative system, improve its concentration, reduce its freezing point temperature, and solution concentration regenerative process is a catabiotic process, regeneration power consumption number very large for the good and bad impact of unit combination property.
Therefore, solve and how to reduce the condensing capacity that enters solution under heat source tower heat pump unit winter condition in heat source tower from air, to reduce the energy consumption demand of solution concentration regeneration, at utmost utilize again water in air to steam simultaneously
The problem of the gas latent heat of condensation, designing a kind of heat source tower device with pre-solidifying function becomes those skilled in the art's technical barrier in the urgent need to address.
Summary of the invention
technical problem:the object of the invention is to solve and how to reduce the condensing capacity that enters solution under heat source tower heat pump unit winter condition in heat source tower from air, to reduce the energy consumption demand of solution concentration regeneration, at utmost utilize again the problem of water in air devaporation latent heat, propose a kind of heat source tower device with pre-solidifying function simultaneously.
technical scheme:for solving the problems of the technologies described above, the invention provides a kind of heat source tower device with pre-solidifying function, this device comprises solution loop, air and condensate circuit and control loop;
Solution loop comprises spray equipment, filler, the first finned tube exchanger, the second finned tube exchanger, the 3rd finned tube exchanger, the 4th finned tube exchanger, electric three-way regulating valves, solution feeder and connecting pipe thereof;
In solution loop, solution entrance termination electric three-way regulating valves input, electric three-way regulating valves the first output connects respectively the input of the first finned tube exchanger, the second finned tube exchanger, the 3rd finned tube exchanger, the 4th finned tube exchanger; After merging, the output of the first finned tube exchanger, the second finned tube exchanger, the 3rd finned tube exchanger, the 4th finned tube exchanger and electric three-way regulating valves the second output connect the input of spray equipment, filler is positioned at spray equipment bottom, solution feeder is positioned at filler bottom, the taphole of this device of solution output termination of solution feeder;
Air and condensate circuit comprise the first finned tube exchanger, the second finned tube exchanger, the 3rd finned tube exchanger, the 4th finned tube exchanger, solidifying water water leg, filler blower fan and interface channel thereof in advance;
In air and condensate circuit, the first finned tube exchanger, the second finned tube exchanger, the 3rd finned tube exchanger, the 4th finned tube exchanger are in the air intlet place, bottom of heat source tower device lateral surface, four heat exchangers are realized the whole air intake of heat source tower device are surrounded, and make the air that enters heat source tower first through four heat exchangers.Pre-solidifying water water leg is positioned at the bottom of the first finned tube exchanger, the second finned tube exchanger, the 3rd finned tube exchanger, the 4th finned tube exchanger, and filler is positioned at heat source tower device middle part, and blower fan is positioned at heat source tower device top air outlet;
Control loop comprises control module, air temperature sensor, air humidity sensor, finned tube exchanger surface temperature sensor, solution temperature sensor, type solution concentration sensor and electric three-way regulating valves;
In control loop, air temperature sensor, air humidity sensor, finned tube exchanger surface temperature sensor, solution temperature sensor, type solution concentration sensor and electric three-way regulating valves are connected with control module respectively, air temperature sensor, air humidity sensor lay respectively at the air intlet place of this heat source tower device, finned tube exchanger surface temperature sensor is positioned at the first finned tube exchanger surface, and solution temperature sensor and type solution concentration sensor are all positioned at the solution arrival end of heat source tower device.
Preferably, the first finned tube exchanger, the second finned tube exchanger, the 3rd finned tube exchanger, the 4th finned tube exchanger are installed in parallel at basifacial air intake place, the outside of this heat source tower device, the whole air intake of heat source tower device is connected with the air intake of the first finned tube exchanger, the second finned tube exchanger, the 3rd finned tube exchanger, the 4th finned tube exchanger respectively, and the outlet of the first finned tube exchanger, the second finned tube exchanger, the 3rd finned tube exchanger, the 4th finned tube exchanger is connected with air duct in heat source tower.
Preferably, the first finned tube exchanger, the second finned tube exchanger, the 3rd finned tube exchanger, the 4th finned tube exchanger adopt respectively hydrophobic type fin.
beneficial effect:
What the present invention proposed has the pre-heat source tower device that coagulates function, guaranteeing under heat source tower heat-obtaining effect prerequisite, can greatly reduce directly to enter in heat source tower the condensing capacity of solution, thereby the solution concentration regeneration amount in minimizing unit running process and regeneration energy consumption thereof, simultaneously, can utilize the moisture precoagulation effect of finned tube exchanger, fully absorb the moisture in air latent heat of condensation, thereby significantly promote heat source tower heat pump unit combination property.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that the present invention has the heat source tower device of pre-solidifying function;
Fig. 2 is the top view with the heat source tower device of pre-solidifying function.
In above figure, have:
Blower fan 1;
Spray equipment 2;
The first finned tube exchanger 4;
The second finned tube exchanger 5;
The 3rd finned tube exchanger 6;
The 4th finned tube exchanger 7;
Electric three-way regulating valves 8;
Electric three-way regulating valves input 8a; Electric three-way regulating valves the first output 8b; Electric three-way regulating valves the second output 8c;
Pre-solidifying water water leg 10;
Finned tube exchanger surface temperature sensor 14;
Type solution concentration sensor 16.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
The heat source tower device with pre-solidifying function provided by the invention, this device comprises solution loop, air and condensate circuit and control loop.
Solution loop comprises spray equipment 2, filler 3, the first finned tube exchanger 4, the second finned tube exchanger 5, the 3rd finned tube exchanger 6, the 4th finned tube exchanger 7, electric three-way regulating valves 8, solution feeder 9 and connecting pipe thereof.
In solution loop, solution entrance termination electric three-way regulating valves input 8a, electric three-way regulating valves the first output 8b connects respectively the input of the first finned tube exchanger 4, the second finned tube exchanger 5, the 3rd finned tube exchanger 6, the 4th finned tube exchanger 7; After merging, the output of the first finned tube exchanger 4, the second finned tube exchanger 5, the 3rd finned tube exchanger 6, the 4th finned tube exchanger 7 and electric three-way regulating valves the second output 8c connect the input of spray equipment 2, filler 3 is positioned at spray equipment 2 bottoms, solution feeder 9 is positioned at filler 3 bottoms, the taphole of this device of solution output termination of solution feeder 9.
Air and condensate circuit comprise the first finned tube exchanger 4, the second finned tube exchanger 5, the 3rd finned tube exchanger 6, the 4th finned tube exchanger 7, solidifying water water leg 10, filler 3, blower fan 1 and interface channel thereof in advance.
In air and condensate circuit, the first finned tube exchanger 4, the second finned tube exchanger 5, the 3rd finned tube exchanger 6, the 4th finned tube exchanger 7 are positioned at basifacial air intlet place outside heat source tower device, four heat exchangers are realized the whole air intake of heat source tower device are surrounded, and make the air that enters heat source tower first through four heat exchangers.Pre-solidifying water water leg 10 is positioned at the bottom of the first finned tube exchanger 4, the second finned tube exchanger 5, the 3rd finned tube exchanger 6, the 4th finned tube exchanger 7 heat exchangers, filler 3 is positioned at heat source tower device middle part, and blower fan 1 is positioned at heat source tower device top air outlet.
Control loop comprises control module 11, air temperature sensor 12, air humidity sensor 13, finned tube exchanger surface temperature sensor 14 solution temperature sensors 15, type solution concentration sensor 16 and electric three-way regulating valves 8.
In control loop, air temperature sensor 12, air humidity sensor 13, finned tube exchanger surface temperature sensor 14, solution temperature sensor 15, type solution concentration sensor 16 and electric three-way regulating valves 8 are connected with control module 11 respectively, air temperature sensor 12, air humidity sensor 13 lay respectively at the air intlet place of this heat source tower device, finned tube exchanger surface temperature sensor 14 is positioned at the first finned tube exchanger 4 surfaces, and solution temperature sensor 15 and type solution concentration sensor 16 are all positioned at the solution arrival end of heat source tower device.
The first finned tube exchanger 4, the second finned tube exchanger 5, the 3rd finned tube exchanger 6, the 4th finned tube exchanger 7 have been installed in parallel at basifacial air intake place, the outside of this heat source tower device, the whole air intake of heat source tower device is connected with the air intake of the first finned tube exchanger 4, the second finned tube exchanger 5, the 3rd finned tube exchanger 6, the 4th finned tube exchanger 7 respectively, and the outlet of the first finned tube exchanger 4, the second finned tube exchanger 5, the 3rd finned tube exchanger 6, the 4th finned tube exchanger 7 is connected with air duct in heat source tower.
The first finned tube exchanger 4, the second finned tube exchanger 5, the 3rd finned tube exchanger 6, the 4th finned tube exchanger 7 adopt respectively hydrophobic type fin.
Concrete grammar of the present invention is: under summer refrigerating operaton operating mode, heat source tower is in the time that summer, cooling condition moved, in handpiece Water Chilling Units condenser, out high-temperature water enters heat source tower from solution entrance, enter that electric three-way regulating valves 8 is rear directly all to flow out and enter spray equipment 2 from electric three-way regulating valves the second output 8c, after spray, in filler 3, carry out heat exchange with air, after cooling, water is got back to handpiece Water Chilling Units condenser end through taphole pipeline outflow heat source tower, so circulation; Air is inhaled into after four finned tube exchangers 4,5,6,7 (now in finned tube exchanger, no liquid flows) and enters in heat source tower from heat source tower lateral surface bottom, in filler 2, carry out heat exchange with water, then discharges heat source tower through blower fan 1; Control loop is not worked under refrigerating operaton operating mode.
Under heating operation operating mode, system is divided three kinds of mode operations in the winter time.
Pattern one: environment temperature be greater than 0 ℃ and surrounding air humidity less, when water in air vapor pressure is less than or equal to the steam partial pressure of solution in heat source tower, now do not need condensing capacity to control, the operation of solution loop, air and condensate circuit, control loop is identical with under summer refrigerating operaton operating mode, and what difference was only that solution loop flows is solution rather than water.
Pattern two: environment temperature be greater than 0 ℃ and surrounding air humidity larger, water in air vapor pressure is greater than the steam partial pressure of solution in heat source tower, need to control water in air amount, when operation, finned tube exchanger surface temperature is lower than air dew point temperature, in solution loop, cryogenic fluid enters heat source tower pipeline by solution entrance from source pump evaporator end out, solution is divided into two-way after entering electric three-way regulating valves 8, solution one road is divided into again four tunnels from electric three-way regulating valves the first output 8b flows out, enter respectively the first finned tube exchanger 4, the second finned tube exchanger 5, the 3rd finned tube exchanger 6 and the 4th finned tube exchanger 7, in finned tube exchanger, carry out heat exchange with air, solution temperature raises, the steam partial pressure of solution surface increases, solution enters spray equipment 2 converging with the solution flowing out from electric three-way regulating valves the second output 8c from four finned tube exchanger outputs flow out respectively, solution carries out heat and mass with air after spray in filler 3, the temperature of solution falls into solution feeder 9 after further raising, flow out from the output of solution feeder 9, by taphole bleeder, in air and condensate circuit, surrounding air sucks from heat source tower lateral surface bottom, enter four finned tube exchangers, air and solution heat exchange in finned tube exchanger, the temperature of air reduces, water in air steam is in finned tube exchanger surface condensation simultaneously, airborne steam partial pressure reduces, condensate water after condensing falls into after pre-solidifying water water leg 10 from solidifying water out bleeder, air through finned tube exchanger enters heat source tower, in filler 3, carry out caloic exchange with solution, because of air and the heat exchange of solution in finned tube exchanger before, now the difference of water in air vapor pressure and solution surface steam partial pressure greatly reduces, the condensation number that moisture in air enters solution also reduces greatly, after air themperature further reduces, sucked discharge heat source tower by blower fan 1.If finned tube exchanger surface temperature is lower than 0 ℃, though ambient air temperature is greater than 0 ℃, the water condensing on finned tube exchanger surface will become frost or ice, and impact enters the air quantity of heat source tower by finned tube exchanger.For weakening this adverse effect, apparatus of the present invention are selected the finned tube exchanger of hydrophobic type material.Hydrophobic type fin surface contact angle is large, and condensate water more easily comes off, and frosting is slow and frost layer is sparse, has like this delayed-action in the time of frosting, and speed is also faster when defrost.In the time that heat exchanger surface frost layer reaches certain thickness, by controlling electric three-way regulating valves 8 regulator solution flows, reduce and even close the liquid inventory that enters finned tube exchanger, because air themperature is greater than 0 ℃, under the forced-convection heat transfer effect of air, can realize finned tube exchanger defrost, defrosting water falls into after pre-solidifying water water leg 10 from solidifying water out bleeder, after defrost finishes, returns to normal operation.
Pattern three: in the time that environment temperature is less than or equal to 0 ℃, device is not controlled moisture in air, solution loop, air and condensate circuit flow with summer refrigerating operaton pattern identical, difference be only in solution loop flow be solution rather than water, now in finned tube exchanger, there is no flow of solution, complete soln directly and air in the filler of heat source tower, carry out caloic exchange.
The operational mode of apparatus of the present invention under various operating modes switched and adjusting is completed by control loop: can record temperature, the humidity of heat source tower intake air by air temperature sensor 12 and air humidity sensor 13, and then calculate steam partial pressure and the dew-point temperature of air.Can record solution temperature and concentration by solution temperature sensor 15 and type solution concentration sensor 16, and then calculate the steam partial pressure of solution in heat source tower, finned tube exchanger surface temperature is measured by finned tube exchanger surface temperature sensor 14, because four finned tube exchangers are to be installed in parallel, ruuning situation is identical, therefore only on the first finned tube exchanger 4 surfaces, a finned tube exchanger surface temperature sensor 14 is installed.Control module 11 is according to measured various parameters, the basis for estimation of selecting and controlling as operational mode, thus realize the operation of each pattern by controlling electric three-way regulating valves 8.
The foregoing is only preferred embodiments of the present invention; protection scope of the present invention is not limited with above-mentioned embodiment; in every case the equivalence that those of ordinary skills do according to disclosed content is modified or is changed, and all should include in the protection domain of recording in claims.
Claims (3)
1. a heat source tower device with pre-solidifying function, is characterized in that: this device comprises solution loop, air and condensate circuit and control loop;
Solution loop comprises spray equipment (2), filler (3), the first finned tube exchanger (4), the second finned tube exchanger (5), the 3rd finned tube exchanger (6), the 4th finned tube exchanger (7), electric three-way regulating valves (8), solution feeder (9) and connecting pipe thereof;
In solution loop, solution entrance termination electric three-way regulating valves input (8a), electric three-way regulating valves the first output (8b) connects respectively the input of the first finned tube exchanger (4), the second finned tube exchanger (5), the 3rd finned tube exchanger (6), the 4th finned tube exchanger (7); The output of the first finned tube exchanger (4), the second finned tube exchanger (5), the 3rd finned tube exchanger (6), the 4th finned tube exchanger (7) and electric three-way regulating valves the second output (8c) connect the input of spray equipment (2) after merging, filler (3) is positioned at spray equipment (2) bottom, solution feeder (9) is positioned at filler (3) bottom, and the solution output termination of solution feeder (9) has the taphole of the heat source tower device of pre-solidifying function;
Air and condensate circuit comprise the first finned tube exchanger (4), the second finned tube exchanger (5), the 3rd finned tube exchanger (6), the 4th finned tube exchanger (7), solidifying water water leg (10), filler (3), blower fan (1) and interface channel thereof in advance;
In air and condensate circuit, the first finned tube exchanger (4), the second finned tube exchanger (5), the 3rd finned tube exchanger (6), the 4th finned tube exchanger (7) lay respectively at the air intlet place, bottom of heat source tower device lateral surface, pre-solidifying water water leg (10) is positioned at the bottom of the first finned tube exchanger (4), the second finned tube exchanger (5), the 3rd finned tube exchanger (6), the 4th finned tube exchanger (7), filler (3) is positioned at heat source tower device middle part, and blower fan (1) is positioned at heat source tower device top air outlet;
Control loop comprises control module (11), air temperature sensor (12), air humidity sensor (13), finned tube exchanger surface temperature sensor (14), solution temperature sensor (15), type solution concentration sensor (16) and electric three-way regulating valves (8);
In control loop, air temperature sensor (12), air humidity sensor (13), finned tube exchanger surface temperature sensor (14), solution temperature sensor (15), type solution concentration sensor (16) is connected with control module (11) respectively with electric three-way regulating valves (8), air temperature sensor (12), air humidity sensor (13) lays respectively at the air intlet place of this heat source tower device, finned tube exchanger surface temperature sensor (14) is positioned at the first finned tube exchanger (4) surface, solution temperature sensor (15) and type solution concentration sensor (16) are all positioned at the solution arrival end of heat source tower device.
2. the heat source tower device with pre-solidifying function according to claim 1, it is characterized in that: in the outside of this heat source tower device, basifacial air intake place has been installed in parallel the first finned tube exchanger (4), the second finned tube exchanger (5), the 3rd finned tube exchanger (6), the 4th finned tube exchanger (7), the whole air intake of heat source tower device respectively with the first finned tube exchanger (4), the second finned tube exchanger (5), the 3rd finned tube exchanger (6), the air intake of the 4th finned tube exchanger (7) is connected, the first finned tube exchanger (4), the second finned tube exchanger (5), the 3rd finned tube exchanger (6), the outlet of the 4th finned tube exchanger (7) is connected with air duct in heat source tower.
3. the heat source tower device with pre-solidifying function according to claim 1, is characterized in that: the first finned tube exchanger (4), the second finned tube exchanger (5), the 3rd finned tube exchanger (6), the 4th finned tube exchanger (7) adopt respectively hydrophobic type fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210365696.9A CN102901374B (en) | 2012-09-28 | 2012-09-28 | Heat source tower device with pre-setting function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210365696.9A CN102901374B (en) | 2012-09-28 | 2012-09-28 | Heat source tower device with pre-setting function |
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| Publication Number | Publication Date |
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| CN102901374A CN102901374A (en) | 2013-01-30 |
| CN102901374B true CN102901374B (en) | 2014-06-11 |
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| CN201210365696.9A Expired - Fee Related CN102901374B (en) | 2012-09-28 | 2012-09-28 | Heat source tower device with pre-setting function |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990305B (en) * | 2015-07-09 | 2017-08-25 | 东南大学 | A kind of pre- solidifying formula heat source tower device of full working scope operation |
| CN105021058A (en) * | 2015-07-10 | 2015-11-04 | 上海酷仑冷却技术有限公司 | Energy-saving, water-saving and environment-friendly type technological adiabatic air cooler |
| CN106196695A (en) * | 2016-07-19 | 2016-12-07 | 中信建筑设计研究总院有限公司 | A kind of water source based on heat source tower multi-connected machine cold and heat supply system |
| WO2021124514A1 (en) * | 2019-12-19 | 2021-06-24 | 三菱電機株式会社 | Humidifying apparatus |
| CN111023856A (en) * | 2019-12-21 | 2020-04-17 | 江苏唐问节能环保科技有限公司 | Heat pipe fan heater |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06323761A (en) * | 1993-05-17 | 1994-11-25 | Tada Denki Kk | Closed cooling tower |
| CN2250511Y (en) * | 1995-04-21 | 1997-03-26 | 江苏申海股份有限公司 | Closed cooling tower |
| CN100501291C (en) * | 2006-01-18 | 2009-06-17 | 金兴才 | Closed cooling tower |
| CN202813624U (en) * | 2012-09-28 | 2013-03-20 | 东南大学 | Heat source tower device capable of achieving pre-condensation |
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