High-efficiency heat pump type thermal source tower regenerative device of solution based on the latent heat recovery
Technical field
The utility model relates to a kind of novel solutions renovation process and realizes the device and method of this method, relates in particular to a kind of pump type heat thermal source tower regenerative device of solution and method that reclaims based on latent heat, the technical field that belongs to the refrigerated air-conditioning system design and make.
Background technology
Along with expanding economy, the raising of living standards of the people, people are also more and more higher to the comfortableness requirement of inhabitation working environment, and air-conditioning has become the necessity of people's life.Existing heavy construction central air conditioner system refrigeration is to take the water-cooled handpiece Water Chilling Units mostly, and winter, the water-cooled handpiece Water Chilling Units was stopped using because can not heat, and caused the refrigeration unit idleness of equipment.Take the boiler heat supplying scheme winter simultaneously, so both increased system's initial cost and heat cost, also cause environmental pollution simultaneously.Air source heat pump has obtained in area, the middle and lower reach of Yangtze River using widely owing to take into account cooling/heat.But becoming, the low problems such as (comparing with the water-cooled handpiece Water Chilling Units) with summer cooling efficient of easy frosting in its winter influences one of its key factor of extensively promoting.The heat source tower heat pump unit transfers cooling tower to thermal source tower operation in the winter time and absorbs airborne heat, thus handpiece Water Chilling Units becomes source pump and by condenser to the indoor purpose that provides heat to reach Winter heat supply.It has avoided handpiece Water Chilling Units idle shortcoming in winter, has solved the problem of air source heat pump winter operation frosting simultaneously, has demonstrated fully the advantage of high utilization rate of equipment and installations and low energy consumption.Traditional cooling tower operating circulating water freezes in the time of in the winter time easily, therefore needs to adopt other medium place of water.Adopt subzero solution as refrigerating medium, can avoid ice formation issues, can absorb airborne sensible heat and latent heat simultaneously.But because airborne moisture is absorbed in the solution, the concentration of solution is thinning, and solution need be regenerated to reach original concentration, guarantees that solution does not freeze.
Therefore, the problem that adopts energy-efficient method to solve the regeneration of thermal source tower solution presses for the technical barrier of solution for those skilled in the art.
Summary of the invention
Technical problem: the purpose of this utility model is to solve when winter, the water-cooled handpiece Water Chilling Units transferred the heat source tower heat pump unit operation to, the problem of solution regeneration in the thermal source tower.A kind of high-efficiency heat pump type thermal source tower regenerative device of solution that reclaims based on latent heat has been proposed.
Technical scheme: the utility model comprises heat pump cycle loop and regeneration cycle loop based on the high-efficiency heat pump type thermal source tower regenerative device of solution that latent heat reclaims; The heat pump cycle loop comprises compressor, magnetic valve, shell and tube condenser, fluid reservoir, filter, electric expansion valve, finned tube evaporator, coagulates water pipe, gas-liquid separator and relevant connection pipeline thereof; The output of compressor connects the cold-producing medium input of shell and tube condenser by magnetic valve, the cold-producing medium output of shell and tube condenser connects the input of reservoir, the output of reservoir connects the input of filter, the output of filter connects the input of electric expansion valve, the output of electric expansion valve connects the cold-producing medium input of finned tube evaporator, the cold-producing medium output of finned tube evaporator connects the input of gas-liquid separator, the output of gas-liquid separator connects the input of compressor, coagulates the bottom that water pipe is positioned at finned tube evaporator;
The regeneration cycle loop comprises solution regenerator, solution pump, first-hand valve, second-hand's valve, shell and tube condenser, finned tube evaporator, circulating fan and relevant connection pipeline thereof; Solution regenerator taphole end connects shell and tube condenser solution arrival end by first-hand valve, and shell and tube condenser taphole end is by the arrival end of second-hand's valve connection solution pump, and the port of export of solution pump connects solution regenerator solution arrival end; Solution regenerator wind loop exit end is connected to the wind system arrival end of finned tube evaporator, and the wind system port of export of finned tube evaporator connects solution regenerator wind loop head end by circulating fan.
The high-efficiency heat pump type thermal source tower solution regeneration method that the utility model reclaims based on latent heat is specifically:
Refrigerant circulation loop is that the refrigerant gas of low-temp low-pressure is become the discharge of HTHP superheated vapor after compressor suction, the compression from gas-liquid separator, enter into shell and tube condenser through magnetic valve, the refrigerant gas of HTHP is emitted a large amount of heats, be condensed and lower the temperature into high pressure refrigerant liquid, flow in the fluid reservoir again.The refrigerant liquid of normal temperature high voltage flows out from fluid reservoir, reach finned tube evaporator through two fluids of gas-liquid that become low-temp low-pressure behind filter, the electric expansion valve, the cold-producing medium evaporation of in finned tube evaporator, absorbing heat, become overheated gas after cold-producing medium evaporates fully and from finned tube evaporator, come out to enter gas-liquid separator, be inhaled into compressor then, finish heat pump cycle.The regeneration cycle loop can be divided into enclosed air circulating system and enclosed solution recycle system.The enclosed solution recycle system is that the circulation solution of low temperature flows out from solution regenerator, flow in the shell and tube condenser through hand-operated valve, cold-producing medium heat exchange with HTHP, heat in the absorption refrigeration agent becomes pyrosol, and the pyrosol that flows out from shell and tube condenser flows in the solution regenerator by solution pump, carry out heat exchange with the air of the low water capacity of low temperature, part water evaporates in the release heat while solution, temperature reduces, thereby finishes the solution circulation.Air circulating system is that the air of the high water capacity of high temperature passes through solution regenerator, enter in the fin-tube heat exchanger, the air of the high water capacity of high temperature condensation therein cooling, condensed water is discharged by condensate pipe, and circulating air becomes the air of the low water capacity of low temperature, enter in the regenerator by circulating fan then, the air of the low water capacity of low temperature in solution regenerator with the pyrosol heat exchange, temperature raises, water capacity increases, moisture in the absorbent solution is finished the wind circulation simultaneously.
Beneficial effect:
1, the high-efficiency heat pump type thermal source tower regenerative device of solution that reclaims based on latent heat that the utility model proposes, its condensation temperature is lower and evaporate higherly, compares common wind-cooled cold-water unit winter operation, has the higher coefficient of performance.
2, high-efficiency heat pump type thermal source tower regenerative device of solution is compared with common water evaporates regeneration, utilize the characteristics of condensate moisture that moisture is condensed from finned tube evaporator, reduced the influence that causes in the air owing to water evaporates to surrounding environment, for evaporimeter provides temperature higher low-grade energy, improved rate of energy simultaneously.
3, high-efficiency heat pump type thermal source tower regenerative device of solution is compared with common water evaporates regeneration, adopts high-efficiency heat pump to provide heat for solution regenerator, has significantly reduced solution regeneration energy needed.
4, high-efficiency heat pump type thermal source tower regenerative device of solution is compared with common water evaporates regeneration, owing to adopt the air circulation of enclosed, moisture in the solution is discharged by condensate pipe, whole system and outside air are contactless substantially, solved since in the solution regenerative process solution band liquid to influence that surrounding enviroment caused.
5, high-efficiency heat pump type thermal source tower regenerative device of solution is compared with the regeneration of common water evaporates, because the regeneration efficiency height of system, and whole system is closed system substantially, and is easy to use, has very strong operability and practicality.
Description of drawings
Fig. 1 is the high-efficiency heat pump type thermal source tower regenerative device of solution schematic diagram that the utility model reclaims based on latent heat.
Have among the above figure: compressor 1; Magnetic valve 2; Shell and tube condenser 3; Shell and tube condenser cold-producing medium input 3a; Shell and tube condenser cold-producing medium output 3b; Shell and tube condenser solution input 3c; Shell and tube condenser solution output 3d; Reservoir 4; Filter 5; Electric expansion valve 6; Finned tube evaporator 7; Finned tube evaporator cold-producing medium input 7a; Finned tube evaporator cold-producing medium output 7b; Finned tube evaporator air input 7c; Finned tube evaporator air output 7d; Condensate pipe 8; Gas-liquid separator 9; Solution pump 10; Solution regenerator 11; Solution regenerator solution arrival end 11a; Solution regenerator taphole end 11b; Solution regenerator wind loop head end 11c; Solution regenerator wind loop exit end 11d; First-hand valve 12; Second-hand's valve 13; Circulating fan 14; Solution liquid supplementation pipe 15; Solution drain pipe 16.
The specific embodiment
1 further the specific embodiment of the present utility model is described in conjunction with the accompanying drawings: high-efficiency heat pump type thermal source tower regenerative device of solution of the present utility model comprises heat pump cycle loop and regeneration cycle loop; Concrete method of attachment is the cold-producing medium input 3a of the output of compressor 1 by magnetic valve 2 body contact trumpet coolers 3, the cold-producing medium output 3b of shell and tube condenser 3 connects the input of reservoir 4, the output of reservoir 4 is taken over the input of filter 5, the input of the output termination electric expansion valve 6 of filter 5, the cold-producing medium input 7a of the output termination finned tube evaporator 7 of electric expansion valve 6, the cold-producing medium output 7b of finned tube evaporator 7 connects the input of gas-liquid separator 9, the input of the output termination compressor 1 of gas-liquid separator 9.The regeneration cycle loop comprises solution regenerator 11, solution pump 10, first-hand valve 12, second-hand's valve 13, shell and tube condenser 3, finned tube evaporator 7, circulating fan 14 and relevant connection pipeline thereof.Solution regenerator taphole end 11b is by the solution arrival end 3c of first-hand valve 12 body contact trumpet coolers, the taphole end 3d of shell and tube condenser connects the arrival end of solution pump 10, the outlet termination solution regenerator solution arrival end 11a of solution pump 10 by second-hand's valve 13.Solution regenerator wind loop exit end 11d receives the wind system arrival end 7c of finned tube evaporator 7, and the wind system port of export of finned tube evaporator 7 meets solution regenerator wind loop head end 11c by circulating fan 14.
Solution regenerator 11 adopts the solution regenerator of enclosed adverse current band liquid barrier, is used for evaporating the moisture of weak solution; The origin of heat of the solution regeneration in the solution regenerator is in resulting heat from the shell and tube condenser heat exchange.
Finned tube evaporator 7 adopts anti-corrosion type bimetallic fin-tube heat exchanger, is used for the moisture of condensation separation regeneration cycle system air; The required cold of moisture derives from the finned tube evaporator and the resulting cold of low-temperature refrigerant heat exchange in the condensation air.
Shell and tube condenser 3 adopts the anti-corrosion type closed shell and tube condenser, is used to provide the heat of regenerator; The finned tube evaporator of heat pump is used for the airborne moisture of condensation separation regeneration cycle system.The condensation temperature of shell and tube condenser is low, the evaporating temperature height of finned tube evaporator 7, the efficient height of heat pump.
The heat pump cycle loop is: become the HTHP superheated vapor after the refrigerant gas of the low-temp low-pressure that comes out is sucked, compresses by compressor 1 and discharge from gas-liquid separator 9, enter into shell and tube condenser 3 through magnetic valve 2, the refrigerant gas of HTHP is emitted a large amount of heats, be condensed and lower the temperature into high pressure refrigerant liquid, flow into again in the fluid reservoir 4.The refrigerant liquid of normal temperature high voltage flows out from fluid reservoir 4, enter finned tube evaporator 7 through the gas-liquid two-phase fluid that becomes low-temp low-pressure behind filter 5, the electric expansion valve 6, the cold-producing medium evaporation of in finned tube evaporator 7, absorbing heat, become overheated gas after cold-producing medium evaporates fully and from finned tube evaporator 7, come out to enter gas-liquid separator 9, be inhaled into compressor 1 then, finish heat pump cycle.The regeneration cycle loop can be divided into enclosed air circulating system and enclosed solution recycle system.The enclosed solution recycle system is that the circulation solution of low temperature flows out from solution regenerator 11, flow in the shell and tube condenser 3 through hand-operated valve 12, cold-producing medium heat exchange with HTHP, heat in the absorption refrigeration agent becomes pyrosol, and the pyrosol that flows out from shell and tube condenser 3 flows in the solution regenerator by solution pump 10, carry out heat exchange with the air of the low water capacity of low temperature, part water evaporates in the release heat while solution, temperature reduces, thereby finishes the solution circulation.Air circulating system is that the air of the high water capacity of high temperature passes through solution regenerator 11, enter in the fin-tube heat exchanger 7, the air of the high water capacity of high temperature condensation therein cooling, condensed water is discharged by condensate pipe 8, and circulating air becomes the air of the low water capacity of low temperature, enter in the regenerator by circulating fan 14 then, the air of the low water capacity of low temperature in solution regenerator 11 with the pyrosol heat exchange, temperature raises, water capacity increases, moisture in the absorbent solution is finished the wind circulation simultaneously.Weak solution is sent into the solution regenerator 11 from liquid supplementation pipe 15 and is regenerated, and the higher solution of concentration flows out by the drain pipe in the solution regenerator 11 16 simultaneously.