A kind of bathroom heat pump hot-water system
The utility model belongs to large-scale bathhouse used heat and utilizes and energy-conservation complex art, a kind of relating to heat pump recovery bathroom used heat, with the heat pump accumulation of heat with the integrated system of bath hot water is provided.
The used thermal source of most of bathhouse is a gas fired-boiler, and coal-burning boiler or electric boiler, heating efficiency are not high, and can not recycle the used heat of bathing discharging, also can produce bad influence to environment.The bathroom open hour are fixed, and are big with discharge, temperature (shower temperature and temperature at discharging condensate) is more stable, and the shower temperature is moderate, is fit to carry out waste heat recovery with heat pump techniques.The wastewater temperature of bathroom discharging is higher, so heat pump also has the higher coefficient of performance, and lower operating cost, has bigger economical operation advantage, the variations in temperature of the high low-temperature heat source of this bathroom system is bigger, and the low level hot-fluid has hysteresis quality, has distinct bathroom waste heat recovery characteristics.If utilize heat pump techniques that the bathroom is carried out hot water supply and Waste Heat Recovery, will have bigger energy-saving effect.There is not used heat to recycle when just having opened in the bathroom, and if do not carry out accumulation of heat, the very water resource heat pump of great heating capacity will be chosen, so should before the bathroom is open, certain accumulation of heat will be arranged.The bathroom draining is generally 33 ℃ the waste water that contains many impurity, can not directly utilize for heat pump, it should be done cooling and filtration treatment and could be utilized by water resource heat pump afterwards.Currently used heat pump recovery system still can not regulate and control the recovery wastewater temperature that enters heat pump.
The utility model content
In order to solve problems of the prior art, the heat pump integrated system that the purpose of this utility model is to provide the enough heat pump accumulation of heats of a kind of energy, heat pump recovery bathroom used heat and bath hot water is provided.This system adopts air-cooled heat pump to carry out accumulation of heat before the bathroom bathing, the wastewater temperature that produces when the bathroom bathing is higher, the employing water resource heat pump reclaims the waste water used heat after hybrid cooling, filtration, simultaneously provide hot water to the bathroom, water in air-cooled heat pump and the water resource heat pump parallel running circulation heat hot water tank is to requiring temperature, and the wastewater temperature that this system enters water resource heat pump can be regulated by the mixed proportion of cold and hot waste water, the energy can be utilized rationally and effectively, purpose of energy saving can be reached again.Owing to there is air-cooled heat pump to carry out accumulation of heat, the load of water resource heat pump will reduce when the bathroom used, and had just reduced the capacity of water resource heat pump.This system can save energy 25～50%, and it is 44% that the bathroom that heat consumption is 2281KW adopts this energy saving of system rate.
To achieve these goals, the utility model provides a kind of bathroom accumulation of heat Waste Heat Recovery heat pump, and this system comprises: Air-Cooled Heat Pump Unit 1, water source heat pump units 2, boiler 7, hot waste water pond 9, low-temperature wastewater pond 6, threeway mixes water valve 10, looped cycle pump 3,4,5, hair filter 8 is characterized in that, the hot water side of Air-Cooled Heat Pump Unit 1 and water source heat pump units 2 is connected to form two closed circuits by supplying water return pipeline and boiler 7 in parallel; The bathroom hot waste water that collect in hot waste water pond 9 is through hair filter 8, and after waste water in the low-temperature wastewater pond 6 mixed water valve 10 and mixes by threeway, the formation closed circuit linked to each other with water source heat pump units 2 low temperature sides.
Before the bathroom bathing, adopt air-cooled heat pump that boiler is heated and carry out accumulation of heat, the wastewater temperature that produces when the bathroom bathing is higher, water resource heat pump has the coefficient of performance and lower operating cost, adopt water resource heat pump to carry out Waste Heat Recovery utilization and hot water supply, water in air-cooled heat pump and the water resource heat pump parallel running circulation heat hot water tank is to requiring temperature, the energy can be utilized rationally and effectively, purpose of energy saving can be reached again.
Boiler is set in the system is used to store hot water, desirable as requested 45～60 ℃ of its hot water temperature, its volume determines that according to amount of stored heat amount of stored heat is generally half of bathroom total amount of heat.Water tank lower end temperature is low and gradient is bigger, and the upper end temperature is high and constant.The upper end has heat pump to go out the water-circulating pipe interface, is useful on the temperature sensor and the level sensor that is used to control moisturizing of control operation of heat pump, and bathroom hot water feed pipe interface is arranged; There are heat pump fill cycle interface tube, filling pipe interface in the lower end; Moisturizing interface and heat pump water inlet interface is oppositely arranged, and the heat pump cycle water yield is generally all big than rate of water make-up, makes moisturizing directly enter heat pump and not influence the upper end high-temperature water under jet own and heat pump water inlet swabbing action.
For reclaiming hot waste water, be provided with high and low temperature wastewater disposal basin and threeway in the system and mix water valve.The hot waste water pond is used to store the hot waste water and the precipitated impurities in 30～33 ℃ in bathroom, and in order to prevent the heat pump frequent start-stop, its minimum volume is the heat pump 10min water yield; The low-temperature wastewater pond is used to store the low warm water discharge of heat pump, the desirable heat pump 10min of its minimum volume water yield.By a triple valve hot waste water and low-temperature wastewater are mixed into design temperature, it is stable to control the heat pump inflow temperature and the water yield.There are heat pump fill cycle interface tube and overflow pipe interface in upper end, low-temperature wastewater pond; The lower end has heat pump to go out water-circulating pipe interface and tapping pipe interface.There is the overflow pipe interface upper end, hot waste water pond; There are bathroom waste pipe interface and tapping pipe interface in the lower end, and the hot waste water interface tube is arranged, and is useful on the temperature sensor and the level sensor of control operation of heat pump.
Operation with temperature sensor control air-cooled heat pump in the boiler stops air-cooled heat pump after temperature reaches design temperature; With the operation of temperature sensor and level sensor control water resource heat pump in the hot waste water pond, when temperature and water level reach setting value back startup water resource heat pump; Air-cooled heat pump and water resource heat pump parallel running, the water in the heating water tank has independent separately pipeline to link water tank; On heat pump waste water suction line, there is threeway to mix water valve, mixes high and low temperature waste water, on the hot waste water pipe, hair filter is arranged to design temperature.
Description of drawings
The utility model description of drawings
Fig. 1 is a systematic schematic diagram of the present utility model.
Among Fig. 1: 1 is air-cooled heat pump, and 2 is water resource heat pump, and 3 is the hot hot water circulating pump of air-cooled heat pump, and 4 is the water resource heat pump hot water circulating pump, 5 is water resource heat pump waste water circulating pump, and 6 is the low-temperature wastewater pond, and 7 is boiler, 8 is hair filter, and 9 is the hot waste water pond, and 10 are the mixed water valve of threeway.
The arrow direction is a water (flow) direction among the figure.
The specific embodiment
Before the bathroom uses, operation air-cooled heat pump 1, the water in the circulation heat hot water tank 7 is equipped with temperature sensor in boiler 7, hot water in boiler 7 is heated to design temperature and then stops air-cooled heat pump 1, just starts air-cooled heat pump 1 when the hot water temperature in the boiler 7 is lower than design temperature.Air-cooled heat pump 1 whole day is moved automatically, before the bathroom uses, the water in the boiler 7 is heated to design temperature.Because the accumulation of heat of air-cooled heat pump 1 24 hour operation is arranged, just can reduce the load of air-cooled heat pump 1, the heating demand in the time of also can reducing the bathroom use simultaneously, the capacity of water resource heat pump 2 is just reduced.
Temperature sensor and level sensor are housed in the boiler 7, and when the bathroom used, the high-temperature-hot-water on boiler 7 tops was fed to bathroom spray head by feed pipe, water level can descend in the boiler 7, drop to when setting lowest water level, open water compensating valve, carry out moisturizing from boiler 7 bottoms; When water level rises to peak level, close water compensating valve, stop moisturizing.
When the bathroom uses, the hot waste water that bathing is 30～33 ℃ is introduced in the hot waste water pond 9, a part of impurity can precipitate in hot waste water pond 9, temperature and level sensor are housed in the hot waste water pond 9, when water temperature and water level rise to the value of setting, start water resource heat pump 2, carry out the Waste Heat Recovery utilization, mix water valve 10 by threeway and mix low-temperature wastewater that sucks from 6 tops, low-temperature wastewater pond and the hot waste water that from hot waste water pond 9, sucks through hair filter 8 filtrations, can be high by control, it recently is that waste water is mixed into heat pump import design temperature that low-temperature wastewater mixes, composite waste enters water resource heat pump 2 and is lowered the temperature, led to 6 bottoms, low-temperature wastewater pond again by the low-temperature wastewater after the cooling, unnecessary water is discharged to the municipal drainage ditch through the overflow pipe in low-temperature wastewater pond 6, and this displacement equals the bathroom waste water water yield.After finishing using in the bathroom, water temperatures and water level can descend in the hot waste water pond 9, when water temperature and water level drop to setting value, close water resource heat pump 2, stop Waste Heat Recovery.
Before the bathroom bathing, adopt air-cooled heat pump 1 to carry out accumulation of heat, and the wastewater temperature that produces when the bathroom bathing is higher, water resource heat pump has the coefficient of performance and lower operating cost, adopt water resource heat pump 2 to carry out the Waste Heat Recovery utilization, simultaneously provide hot water to the bathroom, water in air-cooled heat pump 1 and the water resource heat pump 2 parallel running circulation heat hot water tanks 7 is to requiring temperature, and the waste water that was utilized is discharged through low-temperature wastewater pond 6 spilling waters.The wastewater temperature that enters water resource heat pump like this can be regulated by the mixed proportion of cold and hot waste water, has both utilized the energy rationally and effectively, has reached purpose of energy saving again.