CN103712477A - Heat-supplying and demisting water-saving type cooling tower for heat pump - Google Patents
Heat-supplying and demisting water-saving type cooling tower for heat pump Download PDFInfo
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- CN103712477A CN103712477A CN201310699608.3A CN201310699608A CN103712477A CN 103712477 A CN103712477 A CN 103712477A CN 201310699608 A CN201310699608 A CN 201310699608A CN 103712477 A CN103712477 A CN 103712477A
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Abstract
The invention discloses a heat-supplying and demisting water-saving type cooling tower for a heat pump. The heat-supplying and demisting water-saving type cooling tower for the heat pump comprises a heat pump comprising an evaporator and a condenser, an air blower, an air heater, a water collector, a water distributor, a filling layer, a water storage basin and a cooling tower body, wherein circulating hot water enters the evaporator for pre-cooling, and then enters the cooling tower for spray cooling. The outlet of the heat pump condenser is connected with the air heater; hot water/hot steam flows through the air heater for heating wet air in the cooling tower to supply heat or hot water to users; heat user backwater enters the condenser of the heat pump. With the adoption of the heat-supplying and demisting water-saving type cooling tower for the heat pump provided by the invention, a tower inlet water temperature of the cooling tower is reduced, the cooling load of the filling section is reduced, the evaporation amount of the water is reduced, the amount of wet air is reduced, the power of the air blower is reduced, and the effects of water and energy conservation are realized. Meanwhile, tower outlet wet air is heated by the air heater, so that the temperature difference between the tower outlet wet air and a dew point temperature is increased, mists at a tower opening can be removed or reduced, and the environmental friendliness can be realized. When the circulating water is cooled, the heat-supplying and demisting water-saving type cooling tower can also be used for supplying heat and domestic hot water to the heat users; the gradient utilization of the energy is realized; the energy is saved and the emission is reduced.
Description
Technical field
The present invention relates to a kind of cooling tower for reducing circulating water temperature, be specifically related to a kind of heat pump heat supply demist water-saving cooling tower.
Background technology
The effect of cooling tower is that the recirculated cooling water that carries waste heat is sprayed in tower, directly contacts and carries out heat exchange with air, and the heat of water is passed to air and spills into atmosphere, and recirculated water is lowered the temperature.The operation principle of wet cooling tower is that the recirculated water of sowing at filling surface directly contacts with air, by transmission of heat by contact and evaporative heat loss, the heat of water is passed to air.Wet cooling tower utilizes evaporation of water to take away heat, has the feature of the wet-bulb temperature that cost is low, heat exchange efficiency is high, cooling limit temperature is air, is therefore widely used in the industries such as thermal power generation, weaving chemical industry.But wet cooling tower water loss in routine use is large, at cooling tower exit damp-heat air, can condense into water smoke simultaneously, cause ambient light contamination and affect local climate environment, and the frozen block of freezing can be there is in air inlet place at present in Cold Winter.
Summary of the invention
The object of this invention is to provide a kind of heat pump heat supply demist water-saving cooling tower, the present invention can solve wet cooling tower water loss large, go out the problems such as tower saliva mist is many, the waste of recirculated water heat, the present invention, in conjunction with the utilization of heat pump, has good demist, water saving, economize on electricity and heating effect.
The first heat pump heat supply demist water-saving cooling tower provided by the invention, it comprises wet cooling tower; Described wet cooling tower comprises tower body, is provided with packing layer, water-locator and water collection device in described tower body; Described water-locator is located at the top of described packing layer, and described water collection device is located at the top of described water-locator, and is equipped with spacing between described packing layer, described water-locator and described water collection device; The bottom of described packing layer is storage cistern;
Described cooling tower also comprises a heat pump of being located at outside described wet cooling tower and is located at the air heater in described tower body; Described air heater is located at the top of described water collection device; The oral siphon of the evaporimeter of described heat pump is connected with circulating hot water pipe, and the outlet pipe of described evaporimeter is connected with described water-locator; Described storage cistern is connected with circulating cooling water pipe; On the outlet pipe of described evaporimeter and described circulating water water pipe, be equipped with valve;
The oral siphon of the condenser of described heat pump is connected with heat supply return pipe, and the outlet pipe of described condenser is connected with the oral siphon of described air heater, and the outlet pipe of described air heater is connected with heating tube; On the outlet pipe of described condenser and described heating tube, be equipped with valve.
In described heat pump heat supply demist water-saving cooling tower, the outlet pipe of described evaporimeter is connected by bypass line I with described circulating water water pipe, described bypass line I is provided with by-passing valve I, by regulating and controlling described by-passing valve I, make the outlet pipe of described evaporimeter, described circulating cooling water pipe, described circulating hot water pipe and described evaporimeter form loop;
The outlet pipe of described condenser is connected by bypass line II with described heating tube, described bypass line II is provided with by-passing valve II, by regulating and controlling described by-passing valve II, make the outlet pipe of described condenser, described heating tube, described heat supply return pipe and described condenser form loop.
The second heat pump heat supply demist water-saving cooling tower provided by the invention, it comprises dry cooling tower; Described dry cooling tower comprises tower body, is provided with packing layer, water-locator and water collection device in described tower body; Described water-locator is located at the top of described packing layer, and described water collection device is located at the top of described water-locator, and is equipped with spacing between described packing layer, described water-locator and described water collection device; The bottom of described packing layer is storage cistern;
Described cooling tower also comprises a heat pump of being located at outside described dry cooling tower and is located at the air heater in described tower body; Described air heater is located at the top of described water collection device; The oral siphon of the evaporimeter of described heat pump is connected with circulating hot water pipe, and the outlet pipe of described evaporimeter is connected with the water inlet of pipe heat exchanger, and the delivery port of described pipe heat exchanger is connected with circulating cooling water pipe; On the outlet pipe of described evaporimeter and described circulating water water pipe, be equipped with valve;
The oral siphon of the condenser of described heat pump is connected with heat supply return pipe, and the outlet pipe of described condenser is connected with the oral siphon of described air heater, and the outlet pipe of described air heater is connected with heating tube; On the outlet pipe of described condenser and described heating tube, be equipped with valve.
In described heat pump heat supply demist water-saving cooling tower, the outlet pipe of described evaporimeter is connected by bypass line III with described circulating water water pipe, described bypass line III is provided with by-passing valve III, by regulating and controlling described by-passing valve III, make the outlet pipe of described evaporimeter, described circulating cooling water pipe, described circulating hot water pipe and described evaporimeter form loop;
The outlet pipe of described condenser is connected by bypass line IV with described heating tube, described bypass line IV is provided with by-passing valve IV, by regulating and controlling described by-passing valve IV, make the outlet pipe of described condenser, described heating tube, described heat supply return pipe and described condenser form loop.
The third heat pump heat supply demist water-saving cooling tower provided by the invention, it comprises wet cooling tower; Described wet cooling tower comprises tower body, is provided with packing layer, water-locator and water collection device in described tower body; On the tower body sidewall of described water-locator top, be symmetrically arranged with 2 aerial cooler air inlet shutters, in described tower body, in the inner side of 2 described aerial cooler air inlet shutters, establish respectively an aerial cooler, described water collection device is located between 2 described aerial coolers; The outlet pipe of described aerial cooler is connected with described water-locator, and described water-locator is located at the bottom of described water collection device; Described packing layer is located at the bottom of described water-locator; Between described packing layer, described water-locator and described water collection device, be equipped with spacing; The bottom of described packing layer is storage cistern;
Described cooling tower also comprises a heat pump of being located at outside described wet cooling tower and is located at the air heater in described tower body; Described air heater is located at the top of described aerial cooler; The oral siphon of the evaporimeter of described heat pump is connected with circulating hot water pipe, and the outlet pipe of described evaporimeter is connected with the sparge pipe of described aerial cooler; Described storage cistern is connected with circulating cooling water pipe; The lower condensate sump of described aerial cooler is connected with described circulating cooling water pipe by a bypass line; On the outlet pipe of described evaporimeter and described circulating water water pipe, be equipped with valve;
The oral siphon of the condenser of described heat pump is connected with heat supply return pipe, and the outlet pipe of described condenser is connected with the oral siphon of described air heater, and the outlet pipe of described air heater is connected with heating tube; On the outlet pipe of described condenser and described heating tube, be equipped with valve.
In described heat pump heat supply demist water-saving cooling tower, the outlet pipe of described evaporimeter is connected by bypass line V with described circulating water water pipe, described bypass line V is provided with by-passing valve V, by regulating and controlling described by-passing valve V, make the outlet pipe of described evaporimeter, described circulating cooling water pipe, described circulating hot water pipe and described evaporimeter form loop;
The outlet pipe of described condenser is connected by bypass line VI with described heating tube, described bypass line VI is provided with by-passing valve VI, by regulating and controlling described by-passing valve VI, make the outlet pipe of described condenser, described heating tube, described heat supply return pipe and described condenser form loop.
The 4th kind of heat pump heat supply demist water-saving cooling tower provided by the invention, it comprises wet cooling tower; Described wet cooling tower comprises tower body, is provided with packing layer, water-locator and water collection device in described tower body; On the tower body sidewall of described water-locator top and on the tower body sidewall of described packing layer below, be equipped with 2 aerial cooler air inlet shutters, the inner side of superposed 2 described aerial cooler air inlet shutters is respectively equipped with the first aerial cooler, the inner side that is positioned at 2 described aerial cooler air inlet shutters of bottom is respectively equipped with the second aerial cooler, and described water collection device is located between 2 described the first aerial coolers; The outlet pipe of described the first aerial cooler is connected with described water-locator, and described water-locator is located at the bottom of described water collection device; Described packing layer is located at the bottom of described water-locator; Between described packing layer, described water-locator and described water collection device, be equipped with spacing; The bottom of described packing layer is storage cistern;
Described cooling tower also comprises a heat pump of being located at outside described wet cooling tower and is located at the air heater in described tower body; Described air heater is located at the top of described the first aerial cooler; The oral siphon of the evaporimeter of described heat pump is connected with circulating hot water pipe, and the outlet pipe of described evaporimeter is connected with the sparge pipe of described the first aerial cooler and the second aerial cooler respectively; The lower condensate sump of described the first aerial cooler and described the second aerial cooler is connected with circulating cooling water pipe by a bypass line respectively; Described storage cistern is connected with circulating cooling water pipe; On the outlet pipe of described evaporimeter and described circulating water water pipe, be equipped with valve;
The oral siphon of the condenser of described heat pump is connected with heat supply return pipe, and the outlet pipe of described condenser is connected with the oral siphon of described air heater, and the outlet pipe of described air heater is connected with heating tube; On the outlet pipe of described condenser and described heating tube, be equipped with valve.
In described heat pump heat supply demist water-saving cooling tower, the outlet pipe of described evaporimeter is connected by bypass line VII with described circulating water water pipe, described bypass line VII is provided with by-passing valve VII, by regulating and controlling described by-passing valve VII, make the outlet pipe of described evaporimeter, described circulating cooling water pipe, described circulating hot water pipe and described evaporimeter form loop;
The outlet pipe of described condenser is connected by bypass line VIII with described heating tube, described bypass line VIII is provided with by-passing valve VIII, by regulating and controlling described by-passing valve VIII, make the outlet pipe of described condenser, described heating tube, described heat supply return pipe and described condenser form loop.
In heat pump heat supply demist water-saving cooling tower provided by the invention, described heat pump can be vapor compression heat pump, absorption heat pump or adsorption type heat pump;
Described wet cooling tower or described dry cooling tower all can be countercurrent tower or crossing current tower;
Described wet cooling tower or described dry cooling tower all can be cooling stack or mechanical-draft cooling tower;
Described water-locator can adopt water spraying structure or lower water spraying structure.
In heat pump heat supply demist water-saving cooling tower provided by the invention, described air heater can adopt plate wing fin-tube heat exchanger, helical finned tube type heat exchanger or suit fin-tube heat exchanger, finned tube wherein can be pipe, elliptical tube or porous flat pipe, and the fin that forms described finned tube can be straight wing, screw thread wing, ripple wing or venetian blind type wing.
The present invention, by changing the version of cooling tower, increases heat pump assembly, compared with prior art, has following beneficial effect:
(1) owing to being provided with evaporator with heat pump, recirculated water is carried out to precooling, reduced the cooling load of packing section, reduced evaporated water, can economize on water.
(2) humid air stream temperature after air heater raises in tower, its temperature with and the more existing conventional cooling tower of difference of dew-point temperature go out youngly, can eliminate or reduce the water smoke at tower mouth place, be conducive to environmental protection.
(3) hot water/vapours that heat pump condenser produces can offer hot user, has reclaimed the heat energy of recirculated water.
(4) because packing section cooling load reduces, Air Quantity Required and power of fan reduce, and have saved electric power.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first heat pump heat supply demist water-saving cooling tower of the present invention.
Fig. 2 is the structural representation of the second heat pump heat supply demist water-saving cooling tower of the present invention.
Fig. 3 is the structural representation of the third heat pump heat supply demist water-saving cooling tower of the present invention.
Fig. 4 is the structural representation of the 4th kind of heat pump heat supply demist water-saving cooling tower of the present invention.
In figure, each mark is as follows:
1 heat pump, 2 blower fans, 3 air heaters, 4 water collection devices, 5 water-locators, 6 packing layers, 7 storage cisterns, 8 circulating hot water pipes, 9 circulating cooling water pipes, 10 heat supply return pipes, 11 heating tubes, 12a by-passing valve II, 12b by-passing valve IV, 12c by-passing valve VI, 12d by-passing valve VIII, 13 air heater water inlet valves, 14 air heater outlet valves, 15a by-passing valve I, 15b by-passing valve III, 15c by-passing valve V, 15d by-passing valve VII, 16 storage cistern backwater control valves, 17 recirculated water by-pass valve controls, 18(first) aerial cooler, 19 water-locator bypath valves, 20 pipe heat exchangers, 21 second aerial coolers.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention will be further described, but the present invention is not limited to following examples.
Embodiment 1,
As shown in Figure 1, be the first heat pump heat supply demist water-saving cooling tower provided by the invention, it comprises wet cooling tower, this wet cooling tower comprises tower body, is provided with packing layer 6, water-locator 5 and water collection device 4 in tower body; Wherein water-locator 5 is located at the top of packing layer 6, and water collection device 4 is located at the top of water-locator 5, and is equipped with spacing between packing layer 6, water-locator 5 and water collection device 4.The bottom of packing layer 6 is storage cistern 7; The top of tower body is provided with blower fan 2 and ventilates.
This heat pump heat supply demist water-saving cooling tower also comprises to be located at the heat pump 1 outside wet cooling tower and to be located at the air heater 3 in tower body.This air heater 3 is located at the top of water collection device 4.The oral siphon of the evaporimeter of heat pump 1 is connected with circulating hot water pipe 8, and the outlet pipe of evaporimeter is connected with water-locator 5; Storage cistern 7 is connected with circulating cooling water pipe 9; And the outlet pipe of evaporimeter is provided with recirculated water by-pass valve control 17, circulating water water pipe 9 is provided with storage cistern backwater control valve 16.The outlet pipe of this evaporimeter is connected by bypass line I (not marking in figure) with circulating water water pipe 9, this bypass line I is provided with by-passing valve I 15a, by regulation and control by-passing valve I 15a, make outlet pipe, circulating cooling water pipe 9, circulating hot water pipe 8 and the evaporimeter of evaporimeter form loop.
The oral siphon of the condenser of heat pump 1 is connected with heat supply return pipe 10, and the outlet pipe of condenser is connected with the oral siphon of air heater 3, and the outlet pipe of this air heater 3 is connected with heating tube 11; The outlet pipe of condenser is provided with air heater water inlet valve 13, and heating tube 11 is provided with air heater outlet valve 14.The outlet pipe of condenser is connected by bypass line II (not marking in figure) with heating tube 11, this bypass line II is provided with by-passing valve II 12a, by regulation and control by-passing valve II 12a, make outlet pipe, heating tube 11, heat supply return pipe 10 and the condenser of condenser form loop.
The use procedure of the present embodiment heat pump heat supply demist water-saving cooling tower is as follows:
Recirculated water by pre-cooled, enters in water-locator 5 by recirculated water by-pass valve control 17 in evaporimeter, by being sowed on cooling tower heat exchange packing layer 6, cooling with air heat exchange after, fall into storage cistern 7, flow in circulating cooling water pipe 9.Evaporimeter outlet pipe is connected with circulating cooling water pipe 9 by bypass line I, can be according to evaporimeter outlet pipe temperature and circulating water needs, the aperture of regulation and control by-passing valve I 15a, storage cistern backwater control valve 16 and recirculated water by-pass valve control 17, the cooling load of adjusting heat pump evaporimeter and packing section, farthest economizing on water, demist and energy-conservation.The air heater 3 of arranging above water collection device in tower body, condenser outlet pipe is connected with the oral siphon of air heater 3, hot water/vapours that condenser produces air heater 3 of flowing through, humid air in cooling tower is heated, reduce the relative humidity of Output air of water cooling tower, reduced the generation of water smoke.Air heater 3 outlet pipes are connected with heating tube 11, and thermotropism user provide hot water/vapours, makes full use of energy.Heat supply return pipe 10 is connected with condenser inlet, and heat supply backwater enters the condenser of heat pump 1, completes circulation.Heat pump condenser outlet pipe is connected with heating tube 11 by bypass line II, can be according to hot user's heat demand, the aperture that regulates by-passing valve II 12a, air heater water inlet valve 13 and air heater outlet valve 14, regulates heat supply temperature, regulates heating load or stops heat supply.Damp-heat air after packing layer heat exchange is discharged by tower mouth after again being heated by air heater under blower fan 2 swabbing actions.
Embodiment 2,
As shown in Figure 2, be the second heat pump heat supply demist water-saving cooling tower provided by the invention, it comprises dry cooling tower, this dry cooling tower comprises tower body, is provided with packing layer 6, water-locator 5 and water collection device 4 in tower body; Water-locator 5 is located at the top of packing layer 6, and water collection device 4 is located at the top of water-locator 5, and is equipped with spacing between packing layer 6, water-locator 5 and water collection device 4, and the bottom of packing layer 6 is storage cistern 7; The top of tower body is provided with blower fan 2 and ventilates.
This heat pump heat supply demist water-saving cooling tower also comprises to be located at the heat pump 1 outside dry cooling tower and to be located at the air heater 3 in tower body; This air heater 3 is located at the top of water collection device 4;
The oral siphon of the evaporimeter of heat pump 1 is connected with circulating hot water pipe 8, the outlet pipe of evaporimeter is connected with the water inlet of pipe heat exchanger 20, the delivery port of this pipe heat exchanger 20 is connected with circulating cooling water pipe 9, and the outlet pipe of evaporimeter is provided with recirculated water by-pass valve control 17, circulating water water pipe 9 is provided with storage cistern backwater control valve 16.The outlet pipe of evaporimeter is connected by bypass line III (not marking in figure) with circulating water water pipe 9, this bypass line III is provided with by-passing valve III 15b, by regulation and control by-passing valve III 15b, make outlet pipe, circulating cooling water pipe 9, circulating hot water pipe 8 and the evaporimeter of evaporimeter form loop.
The oral siphon of the condenser of heat pump 1 is connected with heat supply return pipe 10, the outlet pipe of condenser is connected with the oral siphon of air heater 3, the outlet pipe of air heater 3 is connected with heating tube 11, the outlet pipe of condenser is provided with air heater water inlet valve 13, and heating tube 11 is provided with air heater outlet valve 14.The outlet pipe of condenser is connected by bypass line IV (not marking in figure) with heating tube 11, this bypass line IV is provided with by-passing valve IV 12b, by regulation and control by-passing valve IV 12b, make outlet pipe, heating tube 11, heat supply return pipe 10 and the condenser of condenser form loop.
The use procedure of the present embodiment heat pump heat supply demist water-saving cooling tower is as follows:
Recirculated water by pre-cooled, enters in pipe heat exchanger 20 by recirculated water by-pass valve control 17 in evaporimeter, by shell and air heat exchange cooling after, by storage cistern backwater control valve 16, enter in circulating cooling water pipe 9.Evaporimeter outlet pipe is connected with circulating cooling water pipe 9 by bypass line III, can be according to evaporimeter outlet pipe temperature and circulating water needs, the aperture of regulation and control by-passing valve III 15a, storage cistern backwater control valve 16 and recirculated water by-pass valve control 17, the cooling load of adjusting heat pump evaporimeter and packing section, farthest economizing on water, demist and energy-conservation.In tower body, above water collection device, arrange air heater 3, condenser outlet pipe is connected with the oral siphon of air heater 3, hot water/vapours that condenser produces air heater 3 of flowing through, humid air in cooling tower is heated, reduce the relative humidity of Output air of water cooling tower, reduced the generation of water smoke.Air heater 3 outlet pipes are connected with heating tube 11, and thermotropism user provide hot water/vapours, makes full use of energy.Heat supply return pipe 10 is connected with condenser inlet, and heat supply backwater enters the condenser of heat pump 1, completes circulation.Heat pump condenser outlet pipe is connected with heating tube 11 by bypass line IV, can be according to hot user's heat demand, the aperture that regulates by-passing valve IV 12a, air heater water inlet valve 13 and air heater outlet valve 14, regulates heat supply temperature, heating load or stops heat supply.Damp-heat air after packing layer heat exchange is discharged by tower mouth after again being heated by air heater under blower fan 2 swabbing actions.
Embodiment 3,
As shown in Figure 3, be the third heat pump heat supply demist water-saving cooling tower provided by the invention, it comprises wet cooling tower, this wet cooling tower comprises tower body, is provided with packing layer 6, water-locator 5 and water collection device 4 in tower body; On water-locator 5 top tower body sidewalls, be symmetrically arranged with 2 aerial cooler air inlet shutters (not marking in figure), in tower body, in the inner side of 2 aerial cooler air inlet shutters, establish respectively an aerial cooler 18, water collection device 4 is located between 2 aerial coolers 18; The outlet pipe of aerial cooler 18 is connected with water-locator 5, and water-locator 5 is located at the bottom of water collection device 4; Packing layer 6 is located at the bottom of water-locator 5; Between packing layer 6, water-locator 5 and water collection device 4, be equipped with spacing; The bottom of packing layer 6 is storage cistern 7; The top of tower body is provided with blower fan 2 and ventilates.
This heat pump heat supply demist water-saving cooling tower also comprises to be located at the heat pump 1 outside wet cooling tower and to be located at the air heater 3 in tower body; This air heater 3 is located at the top of aerial cooler 18.The oral siphon of the evaporimeter of heat pump 1 is connected with circulating hot water pipe 8, and the outlet pipe of evaporimeter is connected with the sparge pipe of aerial cooler 18; Storage cistern 7 is connected with circulating cooling water pipe 9; The lower condensate sump of aerial cooler 18 is connected with circulating cooling water pipe 9 by a bypass line, and this bypass line is provided with water-locator bypath valve 19; And the outlet pipe of evaporimeter is provided with recirculated water by-pass valve control 17, circulating water water pipe 9 is provided with storage cistern backwater control valve 16.The outlet pipe of evaporimeter is connected by bypass line V (not marking in figure) with circulating water water pipe 9, this bypass line V is provided with by-passing valve V 15c, by regulation and control by-passing valve V 15c, make outlet pipe, circulating cooling water pipe 9, circulating hot water pipe 8 and the evaporimeter of evaporimeter form loop.
The oral siphon of the condenser of heat pump 1 is connected with heat supply return pipe 10, the outlet pipe of condenser is connected with the oral siphon of air heater 3, the outlet pipe of air heater 3 is connected with heating tube 11, the outlet pipe of condenser is provided with air heater water inlet valve 13, and heating tube 11 is provided with air heater outlet valve 14.The outlet pipe of condenser is connected by bypass line VI (not marking in figure) with heating tube 11, this bypass line VI is provided with by-passing valve VI 12c, by regulation and control by-passing valve VI 12c, make outlet pipe, heating tube 11, heat supply return pipe 10 and the condenser of condenser form loop.
The use procedure of the present embodiment heat pump heat supply demist water-saving cooling tower is as follows:
By the recirculated water after evaporator with heat pump precooling, be assigned in aerial cooler 18, the air of being introduced by aerial cooler 18 air feed shutter windows is cooling, recirculated water in aerial cooler 18 and air are and intersect countercurrent flow, through cooling recirculated water, conflux in the lower condensate sump of aerial cooler 18, recirculated water enters water-locator 5 by aerial cooler outlet pipe.The evaporimeter water inlet pipe of heat pump is connected with circulating water heating water pipe 8, recirculated water at evaporator with heat pump by pre-cooled, by recirculated water by-pass valve control 17, enter in water-locator 5, sowed on cooling tower heat exchange packing layer 6, after cooling with air heat exchange, fall into storage cistern 7, flow in circulating cooling water pipe 9.Evaporator with heat pump outlet pipe is connected with circulating cooling water pipe 9 by bypass line V, can be according to evaporimeter outlet pipe temperature and circulating water needs, the aperture of regulation and control by-passing valve V 15c, storage cistern backwater control valve 16 and recirculated water by-pass valve control 17, the cooling load of adjusting heat pump evaporimeter and packing section, farthest economizing on water, demist and energy-conservation.Heat pump condenser outlet pipe is connected with the oral siphon of air heater 3, and hot water/vapours that condenser produces air heater 3 of flowing through, heats humid air in cooling tower, has reduced the relative humidity of Output air of water cooling tower, has reduced the generation of water smoke.Air heater 3 outlet pipes are connected with heating tube 11, and thermotropism user provide hot water/vapours, makes full use of energy.Heat supply return pipe 10 is connected with heat pump condenser entrance, and heat supply backwater enters the condenser of heat pump, completes circulation.Heat pump condenser outlet pipe is connected with heating tube 11 by bypass pipe, can be according to hot user's heat demand, the aperture that regulates by-passing valve VI 12c, air heater water inlet valve 13 and air heater outlet valve 14, regulates heat supply temperature, heating load or stops heat supply.The lower condensate sump of aerial cooler 18 is connected with circulating cooling water pipe 9 by bypass pipe, according to difference regulation and control water-locator bypath valve 19 and the storage cistern backwater control valve 16 of air conditions, to economize on water to greatest extent and to prevent storage cistern to freeze.Damp-heat air after packing layer heat exchange is discharged by tower mouth after again being heated by air heater under blower fan 2 swabbing actions.
Embodiment 4,
As shown in Figure 4, be the 4th kind of heat pump heat supply demist water-saving cooling tower provided by the invention, it comprises wet cooling tower, this wet cooling tower comprises tower body, is provided with packing layer 6, water-locator 5 and water collection device 4 in tower body; On the tower body sidewall of water-locator top and on the tower body sidewall of packing layer below, be equipped with 2 aerial cooler air inlet shutters, the inner side of superposed 2 aerial cooler air inlet shutters is respectively equipped with the first aerial cooler 18, the inner side that is positioned at 2 aerial cooler air inlet shutters of bottom is respectively equipped with the second aerial cooler 21, and water collection device 4 is located between 2 the first aerial coolers 18; The outlet pipe of the first aerial cooler 18 is connected with water-locator 5, and water-locator 5 is located at the bottom of water collection device 4; Packing layer 6 is located at the bottom of water-locator 5; Between packing layer 6, water-locator 5 and water collection device 4, be equipped with spacing; The bottom of packing layer 6 is storage cistern 7.
This heat pump heat supply demist water-saving cooling tower also comprises to be located at the heat pump 1 outside wet cooling tower and to be located at the air heater 3 in tower body; Air heater 3 is located at the top of the first aerial cooler 18.
The oral siphon of the evaporimeter of heat pump 1 is connected with circulating hot water pipe 8, and the outlet pipe of evaporimeter is connected with the sparge pipe of the first aerial cooler 18 and the second aerial cooler 21 respectively; The lower condensate sump of the first aerial cooler 18 and the second aerial cooler 21 is connected with circulating cooling water pipe 9 by a bypass line respectively; Storage cistern 7 is connected with circulating cooling water pipe 9; And the outlet pipe of evaporimeter is provided with recirculated water by-pass valve control 17, circulating water water pipe 9 is provided with storage cistern backwater control valve 16.
The outlet pipe of evaporimeter is connected by bypass line VII (not marking in figure) with circulating water water pipe 9, this bypass line VII is provided with by-passing valve VII 15d, by regulation and control by-passing valve VII 15d, make outlet pipe, circulating cooling water pipe 9, circulating hot water pipe 8 and the evaporimeter of evaporimeter form loop.
The oral siphon of the condenser of heat pump 1 is connected with heat supply return pipe 11, and the outlet pipe of condenser is connected with the oral siphon of air heater 3, and the outlet pipe of air heater 3 is connected with heating tube 10; The outlet pipe of condenser is provided with air heater water inlet valve 13, and heating tube 11 is provided with air heater outlet valve 14.The outlet pipe of condenser is connected by bypass line VIII (not marking in figure) with heating tube 10, bypass line VIII is provided with by-passing valve VIII 12d, by regulation and control by-passing valve VIII 12d, make outlet pipe, heating tube 11, heat supply return pipe 10 and the condenser of condenser form loop.
The use procedure of the present embodiment heat pump heat supply demist water-saving cooling tower is as follows:
By the recirculated water part after evaporator with heat pump precooling, be assigned in the first aerial cooler 18, the air of being introduced by the first aerial cooler 18 air feed shutter windows is cooling, recirculated water in the first aerial cooler 18 and air are and intersect countercurrent flow, through cooling recirculated water, conflux in the lower condensate sump of the first aerial cooler 18, recirculated water enters water-locator 5 by the first aerial cooler outlet pipe; Recirculated water another part is assigned in the second aerial cooler 21, the air of being introduced by the second aerial cooler 21 air feed shutter windows is cooling, recirculated water in the second aerial cooler 21 and air are and intersect countercurrent flow, through cooling recirculated water, conflux in the lower condensate sump of the second aerial cooler 21, recirculated water is entered in circulating cooling water pipe 9 by the second aerial cooler outlet pipe.The evaporimeter water inlet pipe of heat pump 1 is connected with circulating water heating water pipe 8, recirculated water at evaporator with heat pump by pre-cooled, by recirculated water by-pass valve control 17, enter in water-locator 5, sowed on cooling tower heat exchange packing layer 6, after cooling with air heat exchange, fall into storage cistern 7, flow in circulating cooling water pipe 9.Evaporator with heat pump outlet pipe is connected with circulating cooling water pipe 9 by bypass line VII, can be according to evaporimeter outlet pipe temperature and circulating water needs, the aperture of regulation and control by-passing valve VII 15d, storage cistern backwater control valve 16 and recirculated water by-pass valve control 17, the cooling load of adjusting heat pump evaporimeter and packing section, farthest economizing on water, demist and energy-conservation.Heat pump condenser outlet pipe is connected with the oral siphon of air heater 3, and hot water/vapours that condenser produces air heater 3 of flowing through, heats humid air in cooling tower, has reduced the relative humidity of Output air of water cooling tower, has reduced the generation of water smoke.Air heater 3 outlet pipes are connected with heating tube 11, and thermotropism user provide hot water/vapours, makes full use of energy.Heat supply return pipe 10 is connected with heat pump condenser entrance, and heat supply backwater enters the condenser of heat pump, completes circulation.Heat pump condenser outlet pipe is connected with heating tube 11 by bypass pipe, can be according to hot user's heat demand, the aperture that regulates by-passing valve VIII 12d, air heater water inlet valve 13 and air heater outlet valve 14, regulates heat supply temperature, heating load or stops heat supply.The lower condensate sump of aerial cooler 18 is connected with circulating cooling water pipe 9 by bypass pipe, according to difference regulation and control water-locator bypath valve 19 and the storage cistern backwater control valve 16 of air conditions, to economize on water to greatest extent and to prevent storage cistern to freeze.Damp-heat air after packing layer heat exchange is discharged by tower mouth after again being heated by air heater under gravity-flow ventilation draft effect.
In heat pump heat supply demist water-saving cooling tower provided by the invention, heat pump specifically can be vapor compression heat pump, absorption heat pump or adsorption type heat pump etc.; Dry cooling tower or state wet cooling tower and all can be cooling stack or mechanical-draft cooling tower; Water-locator can adopt water spraying structure or lower water spraying structure.
In heat pump heat supply demist water-saving cooling tower provided by the invention, air heat implement body can adopt plate wing fin-tube heat exchanger, helical finned tube type heat exchanger or suit fin-tube heat exchanger, finned tube wherein can be pipe, elliptical tube or porous flat pipe, and the fin that forms described finned tube can be straight wing, screw thread wing, ripple wing or venetian blind type wing.
Claims (10)
1. a heat pump heat supply demist water-saving cooling tower, it comprises wet cooling tower; Described wet cooling tower comprises tower body, is provided with packing layer, water-locator and water collection device in described tower body; Described water-locator is located at the top of described packing layer, and described water collection device is located at the top of described water-locator, and is equipped with spacing between described packing layer, described water-locator and described water collection device; The bottom of described packing layer is storage cistern; It is characterized in that:
Described cooling tower also comprises a heat pump of being located at outside described wet cooling tower and is located at the air heater in described tower body; Described air heater is located at the top of described water collection device; The oral siphon of the evaporimeter of described heat pump is connected with circulating hot water pipe, and the outlet pipe of described evaporimeter is connected with described water-locator; Described storage cistern is connected with circulating cooling water pipe; On the outlet pipe of described evaporimeter and described circulating water water pipe, be equipped with valve;
The oral siphon of the condenser of described heat pump is connected with heat supply return pipe, and the outlet pipe of described condenser is connected with the oral siphon of described air heater, and the outlet pipe of described air heater is connected with heating tube; On the outlet pipe of described condenser and described heating tube, be equipped with valve.
2. cooling tower according to claim 1, it is characterized in that: the outlet pipe of described evaporimeter is connected by bypass line I with described circulating water water pipe, described bypass line I is provided with by-passing valve I, by regulating and controlling described by-passing valve I, make the outlet pipe of described evaporimeter, described circulating cooling water pipe, described circulating hot water pipe and described evaporimeter form loop;
The outlet pipe of described condenser is connected by bypass line II with described heating tube, described bypass line II is provided with by-passing valve II, by regulating and controlling described by-passing valve II, make the outlet pipe of described condenser, described heating tube, described heat supply return pipe and described condenser form loop.
3. a heat pump heat supply demist water-saving cooling tower, it comprises dry cooling tower; Described dry cooling tower comprises tower body, is provided with packing layer, water-locator and water collection device in described tower body; Described water-locator is located at the top of described packing layer, and described water collection device is located at the top of described water-locator, and is equipped with spacing between described packing layer, described water-locator and described water collection device; The bottom of described packing layer is storage cistern; It is characterized in that:
Described cooling tower also comprises a heat pump of being located at outside described dry cooling tower and is located at the air heater in described tower body; Described air heater is located at the top of described water collection device;
The oral siphon of the evaporimeter of described heat pump is connected with circulating hot water pipe, and the outlet pipe of described evaporimeter is connected with the water inlet of pipe heat exchanger, and the delivery port of described pipe heat exchanger is connected with circulating cooling water pipe; On the outlet pipe of described evaporimeter and described circulating water water pipe, be equipped with valve;
The oral siphon of the condenser of described heat pump is connected with heat supply return pipe, and the outlet pipe of described condenser is connected with the oral siphon of described air heater, and the outlet pipe of described air heater is connected with heating tube; On the outlet pipe of described condenser and described heating tube, be equipped with valve.
4. cooling tower according to claim 3, it is characterized in that: the outlet pipe of described evaporimeter is connected by bypass line III with described circulating water water pipe, described bypass line III is provided with by-passing valve III, by regulating and controlling described by-passing valve III, make the outlet pipe of described evaporimeter, described circulating cooling water pipe, described circulating hot water pipe and described evaporimeter form loop;
The outlet pipe of described condenser is connected by bypass line IV with described heating tube, described bypass line IV is provided with by-passing valve IV, by regulating and controlling described by-passing valve IV, make the outlet pipe of described condenser, described heating tube, described heat supply return pipe and described condenser form loop.
5. a heat pump heat supply demist water-saving cooling tower, it comprises wet cooling tower; Described wet cooling tower comprises tower body, is provided with packing layer, water-locator and water collection device in described tower body; On the tower body sidewall of described water-locator top, be symmetrically arranged with 2 aerial cooler air inlet shutters, in described tower body, in the inner side of 2 described aerial cooler air inlet shutters, establish respectively an aerial cooler, described water collection device is located between 2 described aerial coolers; The outlet pipe of described aerial cooler is connected with described water-locator, and described water-locator is located at the bottom of described water collection device; Described packing layer is located at the bottom of described water-locator; Between described packing layer, described water-locator and described water collection device, be equipped with spacing; The bottom of described packing layer is storage cistern; It is characterized in that:
Described cooling tower also comprises a heat pump of being located at outside described wet cooling tower and is located at the air heater in described tower body; Described air heater is located at the top of described aerial cooler;
The oral siphon of the evaporimeter of described heat pump is connected with circulating hot water pipe, and the outlet pipe of described evaporimeter is connected with the sparge pipe of described aerial cooler; Described storage cistern is connected with circulating cooling water pipe; The lower condensate sump of described aerial cooler is connected with described circulating cooling water pipe by a bypass line; On the outlet pipe of described evaporimeter and described circulating water water pipe, be equipped with valve;
The oral siphon of the condenser of described heat pump is connected with heat supply return pipe, and the outlet pipe of described condenser is connected with the oral siphon of described air heater, and the outlet pipe of described air heater is connected with heating tube; On the outlet pipe of described condenser and described heating tube, be equipped with valve.
6. cooling tower according to claim 5, it is characterized in that: the outlet pipe of described evaporimeter is connected by bypass line V with described circulating water water pipe, described bypass line V is provided with by-passing valve V, by regulating and controlling described by-passing valve V, make the outlet pipe of described evaporimeter, described circulating cooling water pipe, described circulating hot water pipe and described evaporimeter form loop;
The outlet pipe of described condenser is connected by bypass line VI with described heating tube, described bypass line VI is provided with by-passing valve VI, by regulating and controlling described by-passing valve VI, make the outlet pipe of described condenser, described heating tube, described heat supply return pipe and described condenser form loop.
7. a heat pump heat supply demist water-saving cooling tower, it comprises wet cooling tower; Described wet cooling tower comprises tower body, is provided with packing layer, water-locator and water collection device in described tower body; On the tower body sidewall of described water-locator top and on the tower body sidewall of described packing layer below, be equipped with 2 aerial cooler air inlet shutters, the inner side of superposed 2 described aerial cooler air inlet shutters is respectively equipped with the first aerial cooler, the inner side that is positioned at 2 described aerial cooler air inlet shutters of bottom is respectively equipped with the second aerial cooler, and described water collection device is located between 2 described the first aerial coolers; The outlet pipe of described the first aerial cooler is connected with described water-locator, and described water-locator is located at the bottom of described water collection device; Described packing layer is located at the bottom of described water-locator; Between described packing layer, described water-locator and described water collection device, be equipped with spacing; The bottom of described packing layer is storage cistern; It is characterized in that:
Described cooling tower also comprises a heat pump of being located at outside described wet cooling tower and is located at the air heater in described tower body; Described air heater is located at the top of described the first aerial cooler; The oral siphon of the evaporimeter of described heat pump is connected with circulating hot water pipe, and the outlet pipe of described evaporimeter is connected with the sparge pipe of described the first aerial cooler and the second aerial cooler respectively; The lower condensate sump of described the first aerial cooler and described the second aerial cooler is connected with circulating cooling water pipe by a bypass line respectively; Described storage cistern is connected with circulating cooling water pipe; On the outlet pipe of described evaporimeter and described circulating water water pipe, be equipped with valve;
The oral siphon of the condenser of described heat pump is connected with heat supply return pipe, and the outlet pipe of described condenser is connected with the oral siphon of described air heater, and the outlet pipe of described air heater is connected with heating tube; On the outlet pipe of described condenser and described heating tube, be equipped with valve.
8. cooling tower according to claim 7, it is characterized in that: the outlet pipe of described evaporimeter is connected by bypass line VII with described circulating water water pipe, described bypass line VII is provided with by-passing valve VII, by regulating and controlling described by-passing valve VII, make the outlet pipe of described evaporimeter, described circulating cooling water pipe, described circulating hot water pipe and described evaporimeter form loop;
The outlet pipe of described condenser is connected by bypass line VIII with described heating tube, described bypass line VIII is provided with by-passing valve VIII, by regulating and controlling described by-passing valve VIII, make the outlet pipe of described condenser, described heating tube, described heat supply return pipe and described condenser form loop.
9. according to the cooling tower described in any one in claim 1-8, it is characterized in that: described heat pump is but is not limited to vapor compression heat pump, absorption heat pump or adsorption type heat pump;
Described dry cooling tower or described wet cooling tower are but are not limited to countercurrent tower or crossing current tower;
Described dry cooling tower or described wet cooling tower are but are not limited to cooling stack or mechanical-draft cooling tower;
Described water-locator adopts upper water spraying structure or lower water spraying structure.
10. according to the cooling tower described in any one in claim 1-9, it is characterized in that: described air heater is but is not limited to plate wing fin-tube heat exchanger, helical finned tube type heat exchanger or suit fin-tube heat exchanger, finned tube is wherein but is not limited to pipe, elliptical tube or porous flat pipe, and the fin that forms described finned tube is but is not limited to straight wing, screw thread wing, ripple wing or venetian blind type wing.
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| CN201310699608.3A CN103712477B (en) | 2013-12-18 | 2013-12-18 | Heat pump heat supply demist water-saving cooling tower |
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| CN201310699608.3A CN103712477B (en) | 2013-12-18 | 2013-12-18 | Heat pump heat supply demist water-saving cooling tower |
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| CN104776731A (en) * | 2015-03-31 | 2015-07-15 | 清华大学 | System and method for freezing resistance of cooling tower in winter by utilizing indirect evaporative cooling |
| CN106839809A (en) * | 2017-03-28 | 2017-06-13 | 福建工程学院 | The square cooling tower device of crossing current and control method with dedusting and anti-scaling function |
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| CN110763005A (en) * | 2019-11-20 | 2020-02-07 | 中南林业科技大学 | Heat pump type double-fluid dehumidification and temperature rise dryer and drying chamber |
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| CN111397394A (en) * | 2020-03-20 | 2020-07-10 | 中国人民解放军火箭军工程设计研究院 | Cooling tower system with white smoke removing function |
| CN111457757A (en) * | 2020-03-25 | 2020-07-28 | 常州大学 | Novel high-efficient fog dispersal water-saving cooling tower |
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