CN103697554B - A kind of closed type heat source tower water receiving divides the water liquid collecting circulatory system - Google Patents
A kind of closed type heat source tower water receiving divides the water liquid collecting circulatory system Download PDFInfo
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- CN103697554B CN103697554B CN201310734823.2A CN201310734823A CN103697554B CN 103697554 B CN103697554 B CN 103697554B CN 201310734823 A CN201310734823 A CN 201310734823A CN 103697554 B CN103697554 B CN 103697554B
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Abstract
A kind of closed type heat source tower water receiving divides the water liquid collecting circulatory system, and it comprises collecting system of water, water diversion system, the liquid collecting circulatory system.Compact conformation of the present invention; easy for installation; condensed water elimination rate is high; spray liquid (i.e. circulation fluid) reclaims convenient; condensed water and spray liquid are completely isolated, condensed water elimination operating mode and spray liquid state of cyclic operation switch simply; rainwater discharge when shutting down for heat source tower, under heat source tower wet type operating condition with the condensed water elimination under defrosting operating condition, summer shower water circulate and winter anti-frost liquor circulate, can be widely used on various closed type heat source tower.
Description
Technical field
The present invention relates to a kind of closed type heat source tower water receiving and divide the water liquid collecting circulatory system, the various liquid fallen by heat source tower top can be received simultaneously, fall into the rainwater of tower body by heat source tower air outlet when comprising rainy, summer shower water when carrying out spraying cooling, condensed water that winter is fallen by heat exchanger surface under wet cooling condition ruuning situation, the anti-icing fluid that sprays under frost prevention in winter operating mode, and by rainwater and condensed water automatic-discharging, the circulation fluid such as shower water and anti-icing fluid collected automatically recycle.
Background technology
At present, closed type heat source tower heat pump type air conditioning system is widely used as a kind of novel air-conditioning system, its utilize closed type heat source tower to carry out in summer vaporation-type cooling provides heat pump low-temperature receiver, winter carries out heat convection provides source heat pump heat, thus be conducive to saving the area, save initial cost, reduce energy consumption, reduce environmental pollution.Because closed type heat source tower must operate in natural environment, the impact by external climate environment is larger.Simultaneously closed type heat source tower will bear heat radiation in summer, the different function of heat-obtaining two kinds in winter, there will be the multi-state working conditions such as the spray operating mode in summer, the dry cooling condition in winter, wet cooling condition, frost prevention operating mode, frozen condition, defrosting operating condition in the course of the work.
Closed type heat source tower is in summer operation, and flow in heat exchanger coils cooling water, and extraneous air sucks from air guide hole by blower fan, carries out heat exchange by heat exchanger; Shower water is sprayed at heat exchanger coils and fin surface by spray system, and carry out enhanced heat exchange, shower water falls into heat source tower bottom drip tray and again sends into spray system by feeding spraying pump and carry out circulated sprinkling after heat exchanger.Cooling water in heat exchanger coils transfers heat to air and shower water, and temperature reduces, thus is supplied to heat pump main frame as low-temperature receiver.
In working in the winter time, the circulation solution that flowing freezing point is lower in heat exchanger coils, extraneous air sucks from air guide hole and carries out heat exchange with heat exchanger by blower fan, and circulation solution absorbs the heat of extraneous air, and temperature raises, thus provides thermal source for heat pump main frame.If now Inner eycle solution temperature is higher, higher than ambient wet bulb temperature, then heat exchanger surface can not condense lower than environment dry-bulb temperature for heat exchanger coils and fin surface temperature, and heat source tower runs under dry cooling condition; If now Inner eycle solution temperature is lower, heat exchanger surface temperature is lower than dew-point temperature higher than 0 DEG C, and now heat exchanger surface there will be dew condensation phenomenon, and this kind of operating condition is called wet cooling condition, under wet cooling condition, heat exchanger surface condensed water can drop down onto in water accumulating disc along fin, needs continuous blow-down.If now Inner eycle solution temperature is low, heat exchanger surface temperature is lower than 0 DEG C, heat exchanger surface there will be frost, for preventing its frosting, need from spray system, to spray the lower spray solution of freezing point at heat exchanger surface to reduce heat exchanger surface freezing point, spray solution falls into drip tray and again sends into spray system by feeding spraying pump and carry out circulated sprinkling after heat exchanger, and this is frost prevention operating mode.If do not carry out spray frost prevention, but run continuously in frosting situation, frost layer generates gradually, thicken, this is frozen condition.Because the thermal resistance of frost layer is larger, heat source tower service behaviour reduces gradually, need heat exchanger surface to carry out defrosting process (being undertaken by modes such as heating heat exchanger surfaces), heat exchanger surface frost layer becomes solidifying water after melting and drops in drip tray, and this is defrosting operating condition.
As can be seen from above situation, current heat source tower is during summer and winter operation, and the function provided due to heat source tower is different, and heat source tower needs to change under different operating modes.Especially, in the winter time, when heat source tower runs under different operating modes, heat source tower replaces having spray liquid, condensed water the phenomenon produced mutually.When heat source tower transfers wet cooling condition to from dry cooling condition, having condensed water to produce needs to be discharged into external environment condition, and when being transferred to frost prevention operating mode by wet cooling condition, anti-icing fluid needs to be added in heat source tower and carries out circulated sprinkling, can not be discharged in environment and go.When frozen condition terminate needs defrost time, the condensed water melted under defrosting operating condition also needs to be discharged in environment.So, in closed type heat source tower drip tray, there will be sometimes be condensed water, be sometimes spray anti-icing fluid, be the situation of condensed water after frost melts sometimes.Condensed water needs discharge, and anti-icing fluid needs recovery to circulate, and the generation of condensed water and discharge and recycling of anti-icing fluid are all be subject to weather condition impact, neither one concrete with reference to saying, thus bring certain influence for the operation of heat source tower.
In the closed type heat source tower used at present, employing be all same drip tray, bottom connects a storage tank.In summer condition, shower water is contained in storage tank, and the water that Sprayer Circulation pump directly extracts in storage tank sprays.Because drip tray communicates with air, when rainy, rainwater directly falls into drip tray by fan outlet thus enters storage tank, causes the pollution of storage tank water quality and then the fouling and corrosion accelerating heat exchanger surface.In the winter time, sleet can enter into drip tray too and cause same impact.In operation in the winter time, at present often adopt " primary emission, once fill, again discharge, again fill " mode carry out the discharge of solidifying water and the use of anti-icing fluid.Namely when ambient temperature is not too low, unified disposable discharge condensed water, when needs carry out frost prevention process, storage tank is full of anti-icing fluid, water circulating pump is opened and is carried out frost prevention process, when not needing frost prevention process, carries out the discharge of condensed water (if anti-icing fluid does not take out after being taken out by anti-icing fluid, then condensed water can enter into anti-icing fluid and causes anti-icing fluid freezing point to raise), need next time anti-icing fluid circulation time again to carry out filling of anti-icing fluid again.Meanwhile, due to anti-icing fluid be stored in storage tank time, owing to communicating with air, there will be the phenomenon of moisture evaporation, cause viscosity excessive, cause water pump operation unstable.
As can be seen from the above, in the use of closed type heat source tower, owing to there is this several fluid of different nature of rainwater, condensed water, spray liquid in tower, selective discharge is needed to circulate with collection.And the at present discharge of rainwater is not all carried out but directly blending is in storage tank, the solidifying discharge of water and the filling of anti-icing fluid are all that the experience of foundation workman is carried out, and even do not discharge solidifying water in some cases.The more serious consequence such as it is rapid that the heat exchanger structure causing heat source tower is thus serious, heat exchange efficiency low, anti-icing fluid freezing point rises, have impact on the operating efficiency of heat source tower heat pump main frame further.
Summary of the invention
The technical problem to be solved in the present invention is, overcome self draining of existing closed type heat source tower, liquid collecting defect, realize rainwater discharge, the discharge of condensed water under different operating mode, the recovery of circulation fluid with recycle mutually isolated, non-interference, circulation fluid is disposable to be filled, recycle, and heat source tower is operated steadily and the low closed type heat source tower water receiving of operating cost divides the water liquid collecting circulatory system.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of closed type heat source tower water receiving divides the water liquid collecting circulatory system, and it comprises collecting system of water, water diversion system, the liquid collecting circulatory system;
Described collecting system of water comprises drip tray and mozzle, and drip tray is located at the below of the heat exchanger of closed type heat source tower, and drip tray bottom has aperture, and mozzle top connects with the aperture of drip tray bottom, and mozzle center has through hole;
Described water diversion system comprises liquid separator, drainpipe and electric two-way valve, liquid separator is arranged on below drip tray, mozzle is placed in liquid separator, liquid separator top periphery has aperture, the lower end nozzle position of mozzle is lower than the orifice position of liquid separator top periphery, liquid separator inner chamber is communicated with the inner chamber of catch box by the aperture of liquid separator top periphery, run in water pipe one end in liquid separator bottom, the drainpipe other end extends outside the tower body of closed type heat source tower, and described electric two-way valve is installed on drainpipe;
The described liquid collecting circulatory system comprises catch box, Sprayer Circulation pump, circulation pipe, catch box is arranged on the below of drip tray, and liquid separator is placed in catch box, the perforate of catch box bottom, circulation pipe is connected with catch box by the perforate of catch box bottom, and described Sprayer Circulation pump is arranged on circulation pipe.
Further, the surface area of described drip tray is identical with net area in tower body, and in tower body, namely net area refers to the horizontal cross-sectional area of tower body inner space, can collect the liquid fallen from heat source tower top.
Further, described collecting system of water also comprises filter, and described filter is arranged on above the central through hole of mozzle.
Further, the external filling pipe of described catch box.
Described closed type heat source tower comprises tower body, and tower body top is provided with air duct, and air duct, built with blower fan, is provided with nozzle above heat exchanger, is also provided with deflector below heat exchanger.
Electric two-way valve on drainpipe is normally open at ordinary times, the condensed water generated in the condensed water generated under dropping into the rainwater in tower body, wet cooling condition, defrost process all enters into liquid separator by drip tray, filter, mozzle, now because electric two-way valve is opened, rainwater and condensed water directly discharge.When Sprayer Circulation pump is opened, electric two-way valve controls by Sprayer Circulation pump work state, and electric two-way valve is closed.Circulation fluid enters in liquid separator by drip tray, filter, mozzle, because the electric two-way valve on drainpipe is closed, is flow in catch box after circulation fluid assembles a part in liquid separator by the aperture of liquid separator top periphery.Catch box can hold the circulation fluid flowed out by the aperture of liquid separator top periphery, and the circulation fluid held in catch box can be delivered to nozzle by Sprayer Circulation pump.
The present invention is by adopting mozzle, liquid separator, by sleet water, condensed water is separated automatically with circulation fluid, catchment compared with storage tank with existing closed type heat source tower, the present invention can avoid rainwater to enter circulation fluid, the collection of condensed water elimination and circulation fluid is completely isolated, the collection of discharge to circulation fluid of condensed water does not have an impact, the collection of circulation fluid is not by the impact of condensed water elimination, do not need at wet cooling condition, frost prevention operating mode, other operation is carried out when switching between defrosting operating condition, thus be conducive to ensureing heat source tower stable working state, reduce operating cost and reduce operate miss.
Compact conformation of the present invention; easy for installation; condensed water elimination rate is high; spray liquid (i.e. circulation fluid) reclaims convenient; condensed water and spray liquid are completely isolated, condensed water elimination operating mode and spray liquid state of cyclic operation switch simply; rainwater discharge when shutting down for heat source tower, under heat source tower wet type operating condition with the condensed water elimination under defrosting operating condition, summer shower water circulate and winter anti-frost liquor circulate, can be widely used on various closed type heat source tower.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram that closed type heat source tower water receiving of the present invention divides the water liquid collecting circulatory system;
The structural representation of Fig. 2 mozzle of the present invention;
Fig. 3 is the structural representation of liquid separator of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
With reference to accompanying drawing, the closed type heat source tower liquid collecting circulation point water drainage system of the present embodiment comprises collecting system of water, water diversion system, the liquid collecting circulatory system;
Described collecting system of water comprises drip tray 1, filter 2 and mozzle 3, drip tray 1 is located at the below of the heat exchanger 13 of closed type heat source tower, the surface area of drip tray 1 is identical with net area in tower body, in tower body, net area refers to the horizontal cross-sectional area of tower body inner space, drip tray 1 bottom has aperture, mozzle 3 top connects with the aperture of drip tray 1 bottom, mozzle 3 can by the liquid guide flow in drip tray 1 in liquid separator 4, mozzle 3 center has through hole 15, and filter 2 is arranged on above the central through hole 15 of mozzle 3.
Described water diversion system comprises liquid separator 4, drainpipe 6, electric two-way valve 7, liquid separator 4 is arranged on below drip tray 1, mozzle 3 is placed in liquid separator 4, liquid separator 4 top periphery has aperture 16, the lower end nozzle position of mozzle 3 is lower than the position, aperture 16 of liquid separator 4 top periphery, liquid separator 4 inner chamber is communicated with the inner chamber of catch box 5 by the aperture 16 of liquid separator 4 top periphery, run in water pipe 6 one end in liquid separator 4 bottom, drainpipe 6 other end extends outside the tower body of closed type heat source tower, drainpipe 6 is provided with electric two-way valve 7,
The described liquid collecting circulatory system comprises catch box 5, Sprayer Circulation pump 8, circulation pipe 9, catch box 5 is arranged on the below of drip tray 1, liquid separator 4 is placed in catch box 5, catch box 5 bottom perforate, circulation pipe 9 is connected with catch box 5 by the perforate of catch box 5 bottom, and Sprayer Circulation pump 8 is arranged on circulation pipe 9.
The external filling pipe 17 of described catch box 5.
Described closed type heat source tower comprises tower body, and tower body top is provided with air duct 10, and air duct 10, built with blower fan 11, is provided with nozzle 12 above heat exchanger 13, be also provided with deflector 14 below heat exchanger 13.
When closed type heat source tower does not work or is out of service, raining or snowing the stage, electric two-way valve 7 is opened, rainwater falls in tower body through air duct 10, enter in liquid separator 4 through drip tray 1, filter 2, mozzle 3 again, because now two-port valve 7 is opened, rainwater directly gives off tower body through drainpipe 6.
When closed type heat source tower runs, blower fan 11 starts, and is sucked by extraneous air from deflector 14, by heat exchanger 13, then sends tower body through air duct 10.
When closed type heat source tower is at summer operation, by filling pipe 17, first a certain amount of shower water is charged to catch box 5, liquid level is lower than the position in the aperture 16 of liquid separator 4 top periphery, then Sprayer Circulation pump 8 is opened, electric two-way valve 7 is closed, circulation fluid (shower water namely in catch box) sprays from nozzle 12, trickle down on heat exchanger 13, enter in liquid separator 4 by drip tray 1--filter 2--mozzle 3 successively again, because electric two-way valve 7 is closed, therefore circulation fluid is flow in catch box 5 by the aperture 16 of liquid separator 4 top periphery assemble a part in liquid separator 4 after.Due to catch box 5 be arranged on below drip tray 1, the outside of liquid separator 4, therefore catch box 5 can hold the circulation fluid flowed out from the aperture 16 of liquid separator 4 top periphery.Catch box 5 lower openings connects with circulation pipe 9, circulation pipe 9 is equipped with circulating pump 8, and the circulation fluid held in catch box 5 is delivered to nozzle 12 by Sprayer Circulation pump 8 and carried out circulated sprinkling.If when closed type heat source tower is out of service, electric two-way valve 7 is closed, because the lower end nozzle position of mozzle 3 is lower than the position, aperture 16 of liquid separator 4 top periphery, therefore the liquid level of the circulation fluid held in liquid separator 4 is higher than the lower end mouth of pipe of mozzle 3, circulation fluid in catch box 5 does not communicate with air by liquid separator 4, mozzle 3, thus liquid separator 4 and mozzle 3 combine the effect serving water seal, circulation fluid and outside atmosphere are isolated.
When closed type heat source tower runs in the winter time, by outside filling pipe 17, first a certain amount of anti-icing fluid is charged to catch box 5, liquid level is lower than the position in the aperture 16 of liquid separator 4 top periphery:
When heat source tower heat exchanger 13 surface temperature is higher than external environment dew-point temperature, the surperficial evaporated condensation water of heat exchanger 13 produces, and under heat source tower is operated in dry cooling condition, does not need to carry out spraying and draining;
If ambient temperature reduces, when heat exchanger 13 surface temperature is lower than external environment dew-point temperature, outside air contacts with heat exchanger surface, and the steam in air will be condensed into condensed water and separate out, and heat exchanger 13 continuous surface generates condensed water, under heat source tower is operated in wet cooling condition, now, Sprayer Circulation pump 8 does not work, and is opened by electric two-way valve 7, condensed water enters into liquid separator 4 by drip tray 1--filter 2--mozzle 3, is directly discharged by condensed water by drainpipe 6;
If ambient temperature continues to reduce, when heat exchanger surface temperature is lower than 0 DEG C, after the steam in outside air contacts with heat exchanger surface, frosting can be started on heat source tower heat exchanger 13 surface.In order to make heat source tower normally heat-obtaining from air, two kinds of modes are had to carry out: one sprays anti-icing fluid to carry out continuous operation, and heat exchanger surface can not frosting; Another kind does not spray anti-icing fluid and allow after heat exchanger surface frosting to carry out defrost again.
When heat exchanger surface temperature is lower than 0 DEG C, in order to prevent the surperficial frosting of heat exchanger 13, frost prevention can be carried out at heat exchanger 13 surface sprinkling anti-icing fluid, now, under heat source tower is operated in frost prevention operating mode.Now, Sprayer Circulation pump 8 is opened, electric two-way valve 7 closes, anti-icing fluid in catch box 5 is under the effect of Sprayer Circulation pump 8, nozzle 12 is arrived through circulation pipe 9, spray from nozzle 12, trickle down on heat exchanger 13, enter in liquid separator 4 finally by drip tray 1--filter 2--mozzle 3, because the electric two-way valve 7 on drainpipe is in closed condition, after anti-icing fluid assembles a part in liquid separator 4, flow in catch box 5 by the aperture 16 of liquid separator 4 top periphery, complete whole circulated sprinkling.
When heat exchanger surface temperature is lower than 0 DEG C, when heat source tower heat exchanger 13 surface starts frosting, the Sprayer Circulation that Sprayer Circulation pump 8 carries out anti-icing fluid if do not open, heat source tower heat exchanger 13 surface can start frosting gradually, now, under heat source tower is operated in frozen condition.Under this operating mode, do not need to open Sprayer Circulation pump, do not have condensed water to produce yet.
After frozen condition completes, the frost thickness of heat exchanger surface increases, and now, need the frost layer on heat exchanger surface to remove, heat source tower enters defrosting operating condition.In defrosting operating condition, by the heating (can adopt by the various ways such as hot fluid, electrical heating) on heat exchanger surface, the frost layer on heat exchanger 13 surface is melted and becomes condensed water, now, Sprayer Circulation pump 8 does not start, opened by electric two-way valve 7, condensed water directly falls into drip tray 1 from heat exchanger 13 surface, then discharges tower body through filter 2, mozzle 3, gas-liquid separator 4, drainpipe 6, electric two-way valve 7.
Claims (3)
1. closed type heat source tower water receiving divides a water liquid collecting circulatory system, it is characterized in that, comprises collecting system of water, water diversion system, the liquid collecting circulatory system;
Described collecting system of water comprises drip tray and mozzle, and drip tray is located at the below of the heat exchanger of closed type heat source tower, and drip tray bottom has aperture, and mozzle top connects with the aperture of drip tray bottom, and mozzle center has through hole;
Described water diversion system comprises liquid separator, drainpipe and electric two-way valve, liquid separator is arranged on below drip tray, mozzle is placed in liquid separator, liquid separator top periphery has aperture, the lower end nozzle position of mozzle is lower than the orifice position of liquid separator top periphery, liquid separator inner chamber is communicated with the inner chamber of catch box by the aperture of liquid separator top periphery, run in water pipe one end in liquid separator bottom, the drainpipe other end extends outside the tower body of closed type heat source tower, and described electric two-way valve is installed on drainpipe;
The described liquid collecting circulatory system comprises catch box, Sprayer Circulation pump, circulation pipe, catch box is arranged on the below of drip tray, and liquid separator is placed in catch box, the perforate of catch box bottom, circulation pipe is connected with catch box by the perforate of catch box bottom, and described Sprayer Circulation pump is arranged on circulation pipe.
2. closed type heat source tower water receiving according to claim 1 divides the water liquid collecting circulatory system, it is characterized in that, the surface area of described drip tray is identical with net area in tower body, and in tower body, namely net area refers to the horizontal cross-sectional area of tower body inner space.
3. closed type heat source tower water receiving according to claim 1 and 2 divides the water liquid collecting circulatory system, it is characterized in that, described collecting system of water also comprises filter, and described filter is arranged on above the central through hole of mozzle.
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| CN201310734823.2A CN103697554B (en) | 2013-12-27 | 2013-12-27 | A kind of closed type heat source tower water receiving divides the water liquid collecting circulatory system |
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| CN103697554B true CN103697554B (en) | 2016-02-03 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN111187135B (en) * | 2020-01-16 | 2022-09-30 | 华亭煤业集团有限责任公司 | Prevent that gaseous phase feeding from taking liquid's safe collecting system |
| CN116066341B (en) * | 2023-01-04 | 2024-10-18 | 华翔翔能科技股份有限公司 | Automatic operation method of pump station |
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| CN101281001A (en) * | 2008-05-23 | 2008-10-08 | 刘秋克 | Closed type heat source tower |
| EP2206980A1 (en) * | 2008-12-04 | 2010-07-14 | M.I.T.A.Materali Isolatin Termotecnici ed Antinquinamento in via Breve M.I.T.A. S.r.l. | Adiabatic humidification device, particularly for air cooling units |
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