CN109899978A

CN109899978A - Three kinds of double heat source heat pump water heater combined devices and its energy saving optimizing control method

Info

Publication number: CN109899978A
Application number: CN201910286407.8A
Authority: CN
Inventors: 陈则韶; 朱延文; 杨太建; 张太标
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-10
Filing date: 2019-04-10
Publication date: 2019-06-18

Abstract

The invention discloses three kinds of double heat source heat pump water heater combined devices and its energy saving optimizing control methods, the first is made of the double heat source heat pump water heater that high and low temperature works；It is made of the double heat source heat pump water heater of hot operation and the water source heat pump water heater of low-temperature working and an air source hot pump water heater for second；The third by high and low temperature work water source heat pump water heater with and an air source hot pump water heater form；Design has clear water heating channel, and waste water heat energy utilization flow path washs water-flow circuit；For bath wastewater through waste water circulating pump, the water source evaporator three-level that waste water-clear water heat exchanger, high and low temperature work recycles heat；Tap water is heated through the condenser of waste water-clear water heat exchanger, low and high temperature Teat pump boiler；According to ambient air temperature height, rationalization water source, air source heat pump operation.The present invention compensates for existing single water, wind source heat pump water heater deficiency, provides advanced means and scientific method for hot water preparing, advantage is more prominent in winter.

Description

Three kinds of double heat source heat pump water heater combined devices and its energy saving optimizing control method

Technical field

The present invention relates to Teat pump boiler field of energy-saving technology.

Background technique

Bath hot water has extensive demand, and usual water temperature is in 40-50 DEG C of range.Hot water preparing Teat pump boiler compares electric heating Hydrophone energy conservation 70-80%.The output hot water thermal of Teat pump boiler can be by heat pump absorb environment air energy or waste water thermal energy or Geothermal energy, in addition compression function consumed by the temperature for the thermal energy that compressor is absorbed by promotion, the coefficient of performance of heat pump are exactly It is defined, i.e., is indicated with COP value by power ratio that the thermal power exported is consumed with compressor.The size of COP value and heat pump It is related with the temperature gap of Environmental Heat Source to export hot water temperature, in the timing of output water temperature one, COP value with Environmental Heat Source temperature Reduction and reduce.The advantages of air source heat pump is that the thermal energy of surrounding air is heat source, inexhaustible, is conveyed with long-range, not Thermal energy, the disadvantage is that heat pump performance is very poor when temperature is low in winter, especially near 0 DEG C, the evaporator meeting frosting of heat pump, air Source heat pump winter frost removing will consume energy and cannot work again.To produce the Teat pump boiler for the purpose of bath hot water, can obtain Free waste water heat source.The thermal energy of waste water is made full use of, there is the effect better than air source heat pump in winter.But waste water heat source Thermal Finite, be collected into the waste water temperature of wastewater disposal basin at 32-34 DEG C, the heat that can be used for utilizing is except related with wastewater flow rate Outside, also related with final discharged waste water temperature.Design Multistage wastewater heat recovery apparatus, the simple heat for utilizing waste water as heat source Pump, when tap water inflow temperature is lower than 12 DEG C, it is difficult to produce enough 45 DEG C of bath hot water amounts.Therefore, from raising Heat Pump Hydrophone mean annual efficiency guarantees that hot water production device four seasons reliability service considers, should be according to air source heat pump, water resource heat pump Characteristic, the variation of ambient air temperature, tap water water inlet variation, propose produce public bathing hot water Optimization of Energy Saving method and grind Study carefully its device.

Summary of the invention

In order to overcome the shortcomings of single air-source and single water source heat pump water heater, the present invention proposes three kinds of double heat source heat pumps Water heater combined device and its energy saving optimizing control method, device include waste water-clear water heat exchanger, the double heat source heat of combined type The multi-stage heat pump at pump water heater or monomer-type water source and air source hot pump water heater combination unit；The energy saving optimizing manipulation Method, be by air-source and water resource heat pump off design performance research and to the assessment of waste water source energy on the basis of, according to ring Border temperature is different with tap water inflow temperature, proposes time segment tissue air-source and water resource heat pump operating scheme, so as to The respective advantage of air-source and water resource heat pump is played, to greatest extent to obtain the most energy-saving effect of annual hot water preparing.

Technical solution of the present invention:

Three kinds of double heat source heat pump water heater combined devices and its energy saving optimizing control method, referred to as three kinds of heat pump combination devices； Its first heat pump combination device is made of the double heat source heat pump water heater of a hot operation and a low-temperature working；It Two kinds of heat pump combination devices, by the double heat source heat pump water heater of hot operation and the water resource heat pump hot water of a low-temperature working Device and an independent air source heat pump water heater composition；Its third heat pump combination device, by a hot operation and one The water source heat pump water heater of low-temperature working and an independent air source heat pump water heater form；Three kinds of heat pump combination devices all also wrap A waste water-clear water heat exchanger, waste water circulating pump, boiler, wastewater disposal basin are included；Operation has refrigerant circulation loop in device, Clear water heating channel, waste water heat energy utilization flow path wash water-flow circuit and temperature, pressure signal detection processing system, electricity Device control system；The refrigerant circulation loop all includes compressor, condenser, evaporator, flow controller, gas-liquid separation Device, connecting line；The condenser is for heating clear water；

It is characterized by: the evaporation of the double heat source heat pump water heater of the hot operation of first and second kind of heat pump combination device The evaporator of the double heat source heat pump water heater of device and low-temperature working is the double heat sources for including water source evaporator and wind regime evaporator Evaporator respectively installs one by a triple valve or on the branch road of wind regime evaporator and water source evaporator using parallel way Electromagnet cut off valve switches over；Wind regime evaporator is arranged in outdoor, and is furnished with fan；Water source evaporator is in company with compressor, throttling Device, electrical control system installation are indoors；The water source evaporator inflow temperature of the double heat source heat pump water heater of hot operation is in 21- 9-10 DEG C of range drops in 24 DEG C of ranges, water temperature；The proper environment temperature of the wind regime evaporator operation of hot operation is at 15 DEG C or more；It is low The water source evaporator inflow temperature of temperature work is in 13-15 DEG C of range, and 4 DEG C of wastewater effluent temperature or more；The wind regime of low-temperature working steams The proper environment temperature of device work is sent out at 15 DEG C or less；

The refrigerant circulation loop of the double heat source heat pump water heater of the hot operation of first and second kind of heat pump combination device Constituting with connection type is: exhaust outlet of compressor connects the air inlet of condenser, and the refrigerant outlet of condenser connects flow controller Import, the outlet of flow controller connect with the parallel interface of the electromagnet cut off valve import of two branches of pair heat source evaporator, or with The import of triple valve connects, and two outlets of triple valve are connect with the import of water source evaporator and wind regime evaporator respectively；Double heat The outlet in parallel of two branch of source evaporator is connect with the import of gas-liquid separator；The outlet of gas-liquid separator and the air inlet of compressor Mouth connection, the circuit filling refrigerant being linked to be；

The first described heat pump combination device flow controller with there are two, is water source evaporator flow controller and wind regime evaporator respectively Flow controller is separately mounted on the inducer pipeline of water source evaporator and wind regime evaporator branch；Pair of the low-temperature working The composition of the refrigerant circulation loop of heat source heat pump water heater is with connection type: exhaust outlet of compressor connects the air inlet of condenser Mouthful, the import of the refrigerant outlet of condenser and triple valve connects, two outlets of triple valve respectively with water source evaporator and wind The flow controller import of source evaporator simultaneously connects；The outlet of the two flow controllers refrigeration with water source evaporator and wind regime evaporator respectively The import of the connection of agent lane entrance, the refrigerant passage outlet parallel interface and gas-liquid separator of two evaporators connects；Gas-liquid point The air inlet of outlet and compressor from device connects, the circuit filling refrigerant being linked to be；The air source hot pump water heater Evaporator be the finned wind regime evaporator of coil pipe, be mounted on outdoor, and be furnished with fan；

The water source heat pump water heater of the low-temperature working of second and third kind of heat pump combination device and the combination of the third heat pump The composition and connection type of the refrigerant circulation loop of the Teat pump boiler of the hot operation of device are all that exhaust outlet of compressor connects Connect the air inlet of condenser, the import of the refrigerant outlet connection flow controller of condenser, the outlet of flow controller and water source evaporator Import connection, outlet connect with the import of gas-liquid separator；The outlet of gas-liquid separator and the air inlet of compressor connect, The circuit filling refrigerant being linked to be；

The composition of the refrigerant circulation loop of the independent air source heat pump water heater of second and third kind of heat pump combination device and Connection type is: exhaust outlet of compressor connects the air inlet of condenser, and the refrigerant outlet of condenser connects the import of flow controller, The outlet of flow controller is connect with the import of air-source evaporator, and outlet is connect with the import of gas-liquid separator；Gas-liquid separator Outlet and the air inlet of compressor connect, the circuit that is linked to be filling refrigerant；The steaming of the air source hot pump water heater Sending out device is the finned wind regime evaporator of coil pipe, is mounted on outdoor, and be furnished with fan；Its condenser is that clear water heater is mounted on room It is interior, it is mounted in the same casing with water source source heat pump water heater.

Three kinds of heat pump combination devices, it is characterised in that: the independent air of the third heat pump combination device The flow controller of source heat pump water heater is all-season flow controller, is formed in parallel by the flow controller of two branches, is throttling degree all the way Big dedicated flow controller of suitable winter, another way are the by-pass throttle devices for increasing amount of restriction for spring and autumn Xia Sanji, and winter is dedicated Flow controller selects electric expansion valve or heating power expansion valve or capillary on the basis of 0 DEG C of ambient air temperature, and throttling degree is larger and makes Cryogen flow is less than normal；By-pass throttle device is the side to make up and adding because ambient air temperature increases due to compressor air suction amount increases the problem of Road flow controller is electronic stepping throttle valve, from winter to summer, is changed by ambient air temperature from 10 DEG C to 40 DEG C of temperature, 5 DEG C of increasings of every heating Add one grade of aperture, starting aperture is 0；The amount of restriction in summer in spring and autumn is the total refrigerant flow of two-way in parallel；Summer flow controller two The pressure difference at end is small, and refrigerant flow is big, and the aperture of throttle valve is big, and spring and autumn day takes second place, winter by-pass throttle device is closed.

Three kinds of heat pump combination devices, it is characterised in that: the low-temperature working of the first heat pump combination device Double heat source heat pump water heater and second and third kind of heat pump combination device independent air source heat pump water heater, be equipped with using washing Bathe waste water spray pipeline；The bath wastewater spray pipeline is the water source evaporator waste water from the Teat pump boiler of low-temperature working A spray pipeline is separated on the wastewater discharge pipe of outlet, is guided to above wind regime evaporator, wind regime evaporator is coil heat exchanger, The leading portion of spray pipeline is equipped with the electric gate valve of spent shower water on wastewater discharge pipe, and spray pipeline latter end has spray Hole can spray water to coil heat exchanger, and end is shut；There is water receiving tank below coil heat exchanger, water receiving trench bottom is connected with waste water row Water pipe draws waste water and is discharged into trench；It can use waste water defrosting in winter, it can also be straight when ambient air temperature is not less than subzero 5 DEG C Spent shower water is connect, emptying gas source evaporator absorbs the heat hot water preparing of waste water, and fan stalls in spent shower water.

Three kinds of heat pump combination devices, it is characterised in that: the independent sky of second and third kind of heat pump combination device Air supply heat pump water heater is also equipped with bypass hot gas line；The bypass hot gas line, is that one is connect from compressor exhaust pipe On hot gas tubule to the inlet ductwork of wind regime evaporator, hot gas electromagnet cut off valve is installed on hot gas line；Hot gas line Only used when no waste water needs to defrost and evaporator pressure is too low safe for protection compressor.

Three kinds of heat pump combination devices, it is characterised in that: the process of the clear water heating channel, on water inlet pipe Pressurization can be added in the hypodynamic occasion of running water pressure by being equipped with into water shut-off valve, water inlet electromagnet cut off valve, inlet gage Pump；Become on the hot water outlet pipe that hot water sends to boiler in clear water by heating, hot water flow valve and hot water flow are installed Regulating valve；The process connection type of the clear water heating channel of the first heat pump combination device is: providing clear water originally Water pipe and waste water-clear water heat exchanger, the condenser of the double heat source heat pump water heater of low-temperature working, hot operation double heat source heat pump The water-flowing path of the condenser of water heater is sequentially connected, and is finally sent to boiler via hot water outlet pipe；

The process connection type of the clear water heating channel of second and third kind of heat pump combination device is to provide clear water originally Water pipe and waste water-clear water heat exchanger, the condenser of air source hot pump water heater, low-temperature working double heat source heat pump water heater it is cold Condenser, hot operation the water-flowing path of condenser of double heat source heat pump water heater be sequentially connected, finally sent by hot water outlet pipe To boiler.

Three kinds of heat pump combination devices, it is characterised in that: the process connection side of the waste water heat energy utilization flow path Formula is: the wastewater inlet pipe of wastewater disposal basin successively with waste water circulating pump, waste water-clear water heat exchanger waste water path, hot operation Water source evaporator waste water path, the water source evaporator waste water path of low-temperature working, the connection of wastewater discharge pipe road, last waste water are discharged into Trench；The water inlet end of wastewater inlet pipe is equipped with water non-return valve.

Three kinds of heat pump combination devices, it is characterised in that: the washing water-flow circuit is waste water heat energy utilization The recycled back circuit of flow path；The composition and connection type of the washing water-flow circuit are: in the water inlet of waste water circulating pump Increase a washing water water return pipeline between mouth and waste water-clear water heat exchanger waste water inlet, pacifies on washing water water return pipeline Equipped with washing water backflow non-return valve, it is denoted as the 5th shut-off valve；In the water outlet of waste water circulating pump and the water source evaporator of low-temperature working Wastewater outlet between increase a washing water water supply conduit, the 4th shut-off valve is installed in washing water water supply conduit；In waste water On the water outlet of circulating pump and the connecting line of waste water-clear water heat exchanger waste water inlet, the 3rd shut-off valve is installed；In waste water Circulating pump is also equipped with the 2nd shut-off valve on the water inlet segment of wastewater disposal basin, the 2nd shut-off valve and waste water circulating pump import it Between influent waste water line segments on, piece cleaning solution inlet pipe with the 6th shut-off valve of cleaning solution shut-off valve of vertical grafting is being washed The top for washing liquid inlet pipe is equipped with washing lotion box；One the 7th shut-off valve is installed in the end on wastewater discharge pipe road；It rinses useless When the dirt of water heat energy utilization flow path, compressor shutdown, the 2nd shut-off valve is closed, and the 6th shut-off valve is open-minded, starts waste water circulating pump, It allows cleaning solution to flow into waste water heat energy utilization flow path from washing lotion box, after wastewater outlet has cleaning solution, suspends waste water circulating pump, close The 3rd, 6,7 shut-off valves are closed, the 4th shut-off valve is opened, and is allowed and is washed vacuole 1-2 hours, and waste water circulating pump is started, and washs water-flow circuit Glide path are as follows: waste water circulating pump → 4 shut-off valves → low-temperature working water source evaporator → hot operation water source evaporation Device → 5 shut-off valves → waste water circulating pump；It is 10-15 minutes to be cleaned, the 2nd, 3,7 shut-off valves are opened, the 4th, 5 shut-off valves are closed, Discharge washes.

Three kinds of heat pump combination devices, it is characterised in that: the temperature, pressure signal detection processing system, electric appliance Control system；Main detection signal, there is be mounted on each heat exchanger inlet and outlet on clear water heating channel first, second, third and fourth Temperature gauge head is mounted on the five, the six, seven, eight temperature gauge heads of each heat exchanger inlet and outlet on waste water heat energy utilization flow path, and It is mounted on the ambient air temperature gauge head of wind regime evaporator air inlet, the 9th gauge head；The refrigerant circulation loop of hot operation it is high and low Pressure gauge, the high and low pressure gauge of the refrigerant circulation loop of low-temperature working, tap water pressure table；Flow gauge head, is mounted on Clear water flow meter on clear water flow path, the waste water stream meter being mounted on waste water heat energy utilization flow path；Clear water flow adjusts accessory It include: hot water flow regulating valve, electromagnet cut off valve of intaking, clear water flow manipulates hot water flow tune by clear water flow PID controller Section valve is adjusted；Wastewater flow is adjusted frequency conversion waste water pump by wastewater flow PID controller.

Three kinds of heat pump combination devices, it is characterised in that: the principle of the optimization control method is:

(1) energy balance principle, guarantees heat pump thermal energy absorbed in waste water, the air, the electric energy of heat pump consumption and other The energy of supplement, it is necessary to equal to energy needed for bath hot water；

(2) the cheap principle of economy, the minimum principle of cost of production unit ton hot water preferentially utilize free heat source, such as bathing The thermal energy of waste water, the thermal energy of surrounding air, solar energy；

(3) scientific energy principle, the i.e. quality of scientific utilization energy, are specifically added using heat pump mode hot water preparing prior to electricity Hot mode and gas heating mode；Waste water temperature is compared with environment temperature, the preferential heat source high using temperature；

(4) system average of the whole year Energy Efficiency Ratio COP supreme principle；

The thermal energy of cascade utilization waste water heat source preferentially directly heats clear water in the way of different transfer of heat, secondly just uses heat pump side Formula step by step lifting waste water low-temperature heat quantity heat clear water.

Three kinds of heat pump combination devices, it is characterised in that: the optimization of the optimization control method manipulates specific Method is:

(1) initial stage, including boiler utilize air heat energy hot water preparing without storing in hot water or wastewater disposal basin without waste water； The wind regime evaporator system work for starting the double heat source heat pump water heater of hot operation and low-temperature working, is being furnished with independent air source Heat pump water heater system, independent air source heat pump water heater participate in water heating；

(2) in the bathing stage for having had waste water, starting waste water heat energy utilization flow path system, waste water first successively passes through waste water- The waste water path of the water source evaporator of clear water heat exchanger, the water source evaporator of hot operation and low-temperature working；When ambient air temperature height When 25 DEG C, the wind regime evaporator operation of the double heat source heat pump water heater of hot operation, the double heat source heat pump hot water of low-temperature working The water source evaporator operation of device；When ambient air temperature is in 25-15 DEG C of section, double warm of the hot operation of the first combining heat pump device The wind regime evaporator operation of the double heat source heat pump water heater of the water source evaporator and low-temperature working of source heat pump water heater；Second, In three kinds of heat pump combining heat pump devices, independent air source hot pump water heater can participate in the work of water heating；

(3) it is lower than 0 DEG C and subzero 15 DEG C of sections in ambient air temperature, during non-bathing on daytime or when wastewater flow rate deficiency, opens low temperature The wind regime evaporator operation of the double heat source heat pump water heater of work, hot water preparing；It is being furnished with independent air source heat pump water heater system System, reinstates independent air source heat pump water heater water heating；

(4) it is lower than 0 DEG C and subzero 15 DEG C of sections in ambient air temperature, during not bathing on daytime, double heat of low-temperature working should be opened The wind regime evaporator operation of source heat pump water heater supplements hot water；It is being furnished with independent air source heat pump water heater system, should reinstating Independent air source heat pump water heater water heating；

(5) discharge temperature limit that heat energy of bathing waste water utilizes is 4 DEG C；Ambient air temperature again 10 DEG C-it is 5 DEG C subzero, first and second, Three kinds of heat pump combination devices can star the wind regime evaporator operation of waste water spray low-temperature working, increase heating capacity；

(6) cleaning of waste water heat energy utilization flow path, when water reuse efficiency is substantially reduced, such as waste water-clear water heat exchanger is useless Water outlet temperature or discharge of wastewater temperature are 2-3 DEG C or waste water displacement is obvious less than normal should start waste water smaller than normal temperature value The wash cycle of heat energy utilization flow path；It rule of thumb data can also provide to start the time interval of wash cycle；

The defrosting of independent air source heat pump water heater: being defrosted when there is waste water using waste water, in no waste water with bypass hot gas Defrosting；Fan is out of service when defrosting.

The innovative point of three kinds of double heat source heat pump water heater heat pump combination devices and its energy saving optimizing control method of the invention:

(1) according to the principle of the first and second law of thermodynamics, three kinds of double heat source heat pump water heater heat pump combination devices are devised, Advantage is can be according to the thermal energy of temperature height cascade utilization bath wastewater, and accomplishes that the air of environment can be mutual with the thermal energy of waste water It mends, guarantees that sufficient heat can be absorbed in Teat pump boiler；

(2) heat for how utilizing high temperature heat source fully taken into account, high temperature work is scheduled for three kinds of heat pump combination devices designed by The independence applicable with the air-source heat exchanger system difference throttle valve of the double heat source heat pump water heater of low-temperature working and the four seasons made The flow controller of air source hot pump water heater, to adapt to the operation of varying environment temperature；

(3) it proposes suitable for ambient air temperature large span from subzero 5 DEG C to 35 DEG C of flow controller scheme, is air source heat pump heat Hydrophone variable working condition, big warm area, high-efficiency operation provide technical support；

(4) winter temperature has been started in 0 DEG C of evaporator using waste water spray air source hot pump water heater, improves heat pump heat absorption Amount improves heat pump efficiency first case, to there is the air source heat pump winter operation of waste water heat source to open up the road Liao Xin；Utilize the useless of flowing The coil pipe evaporator fin of water spray air source heat pump, than using cold ambient air temperature for evaporimeter thermal source, recept the caloric more, temperature Height, heat pump efficiency are high；Although the freezing point of clear water is 0 DEG C, but water will not freeze at 0 DEG C in no ice-nucleus, and experiment is surveyed Degree of supercooling before obtaining water freezing can arrive 3-6 DEG C, and therefore, spray can drop to 0 DEG C or -2 DEG C using waste water limiting temperature, this is in the winter When its severe cold, it is very valuable the heat for cooling to 0 DEG C from 5 DEG C to be obtained again from waste water；

(5) using waste water spray defrosting, energy-saving effect, defrosting is fastly；

(6) principle and specific control of the energy saving optimizing control method of three kinds of double heat source heat pump water heater heat pump combination devices are proposed Mode processed can use average annual most power save mode operation；

(7) cleaning system of waste water heat energy utilization flow path is devised, guarantees device water source evaporator energy efficient heat transfer.

Three kinds of double heat source heat pump water heater heat pump combination devices of the invention and its energy saving optimizing control method, contain and set Theory ground-breaking is counted, apparatus structure innovation, key technology innovation, operating scheme innovation, technical essential explanation is clear, and attached drawing understands, Combining heat pump device and existing multistage single water source heat pump water heater device, single air source hot pump water heater are compared, power savings advantages Obviously, technological leapfrogging progress, advantage is more prominent in winter, practical, has innovative, advanced and practicability completely, Therefore patent of invention should be awarded.

Detailed description of the invention

Attached drawing 1 is the embodiment 1 of three kinds of heat pump combination devices of the invention, the first heat pump combination device, including one The structural relation and principle explanation of the apparatus system of hot operation and a low-temperature working double heat source heat pump water heater composition Figure.

Attached drawing 2 is the embodiment 2 of three kinds of heat pump combination devices of the invention, second of heat pump combination device, including one The double heat source heat pump water heater of hot operation, the water source heat pump water heater and an independent air source Heat Pump of a low-temperature working The structural relation and principle explanatory diagram of the apparatus system of the composition of hydrophone.

Attached drawing 3 is the embodiment 3 of three kinds of heat pump combination devices of the invention, the third heat pump combination device, including one The dress of hot operation and low-temperature working water source heat pump water heater and independent air source heat pump water heater composition Set the structural relation and principle explanatory diagram of system.

Specific embodiment

Below with reference to embodiment and its attached drawing, the present invention is further illustrated, but the present invention is not limited only to this.

Embodiment 1, as shown in Fig. 1, embodiment 1 are the first heat pump combination devices of the invention, by a high temperature work Double heat source heat pump water heater composition make and a low-temperature working；The double heat source heat pump water heater of the hot operation, packet Compressor 1a, condenser 2a, flow controller Ja, water source evaporator 3a, wind regime evaporator 4a, gas-liquid separator 5a, water source has been included to steam Send out the shut-off valve Fa1 of device branch, the shut-off valve Fa2 of wind regime evaporator branch；The connection type of its refrigerant circulation loop is: pressure The air inlet of the exhaust outlet connection condenser 2a of contracting machine 1a, the import of the refrigerant outlet connection flow controller Ja of condenser, throttling The outlet of device is connect with the inlet parallel interface of electromagnet cut off valve Fa1, Fa2 of double two branches of heat source evaporator；Dual-source evaporation device The outlet in parallel of two branches is connect with the import of gas-liquid separator 5a；The outlet of gas-liquid separator and the air inlet of compressor connect It connects, the circuit filling refrigerant being linked to be；Wind regime evaporator is mounted on outdoor, is furnished with fan 9a.

The refrigerant circulation loop of the double heat source heat pump water heater of the low-temperature working of the first heat pump combination device, It include compressor 1b, condenser 2b, triple valve F, water source evaporator flow controller Jb1, water source evaporator 3b, wind regime evaporator Jb2, wind regime evaporator 4b, gas-liquid separator 5b；Its connection type is: compressor 1b → condenser 2b → triple valve F is divided to two Road, the first via: → flow controller Jb1 → water source evaporator 3b；Second tunnel: → flow controller Jb2 → wind regime evaporator 4b；Two evaporations The refrigerant outlet parallel interface of device → gas-liquid separator 5b → compressor, the circuit filling refrigerant being linked to be；The sky The evaporator of air supply heat pump water heater is the finned wind regime evaporator of coil pipe, is mounted on outdoor, and be furnished with fan.

The first heat pump combination device of the embodiment described 1 further includes having a waste water-clear water heat exchanger 6, waste water to follow Ring pumps 7, boiler 8, wastewater disposal basin 10；Except the refrigeration for having hot operation and low-temperature working double heat source heat pump water heater in device Outside agent circulation loop, there are also clear water heating channel, waste water heat energy utilization flow path washs water-flow circuit and temperature, pressure letter Number detection processing system, electrical control system；

The clear water heating channel of the first heat pump combination device of the embodiment described 1 is equipped with into water on water inlet pipe and ends Valve S1, water inlet electromagnet cut off valve D1, inlet gage P1 can add booster pump in the hypodynamic occasion of running water pressure；In clear water Become hot water by heating to send on the hot water outlet pipe of boiler 8, hot water flow valve G1 and hot water flow regulating valve are installed Tf1；The process connection type of the clear water heating channel of the first heat pump combination device is: providing the running water pipe of clear water → waste water-clear water heat exchanger → low-temperature working double heat source heat pump water heater condenser → hot operation double heat source heat pump heat The water-flowing path of the condenser of hydrophone is sequentially connected, and is finally sent to boiler by hot water outlet pipe.

The process connection type of the waste water heat energy utilization flow path of the first heat pump combination device of the embodiment described 1 is: The wastewater inlet pipe of wastewater disposal basin 10 is connect with the water inlet of waste water circulating pump 7, and the inlet segment of wastewater inlet pipe is equipped with water check Valve N；The water outlet of waste water circulating pump is connect with waste water-clear water heat exchanger 6 waste water inlet；Waste water-clear water heat exchanger waste water Outlet is connect with the waste water inlet of the water source evaporator 3a of the double heat source heat pump water heater of hot operation, wastewater outlet and low temperature The waste water inlet of the water source evaporator 3b of the double heat source heat pump water heater of work connects, and wastewater outlet is through wastewater discharge pipe road L1 It is discharged into trench；The waste water heat energy utilization flow path is successively by the double heat sources of waste water-clear water 6 → hot operation of heat exchanger The waste water path of the water source evaporator 3b of water source evaporator 3a → low-temperature working double heat source heat pump of heat pump.

The washing water-flow circuit of the first heat pump combination device of the embodiment described 1 is waste water heat energy utilization flow path Recycled back circuit；The composition and connection type of the washing water-flow circuit are: waste water circulating pump 7 water inlet with Increase a washing water water return pipeline L2 between waste water-clear water heat exchanger waste water inlet, is installed on washing water water return pipeline There is washing water return water shut-off valve S5, is denoted as the 5th shut-off valve；In the water outlet of waste water circulating pump and the water source evaporator of low-temperature working Increase a washing water water supply conduit L3 between the wastewater outlet of 3b, the 4th shut-off valve S4 is installed in washing water water supply conduit； On the water outlet of waste water circulating pump and the connecting line of waste water-clear water heat exchanger 6 waste water inlet, the 3rd shut-off valve is installed S3；It is also equipped with the 2nd shut-off valve S2 on the inlet pipeline of the close wastewater disposal basin of waste water circulating pump, in the 2nd shut-off valve and washing In influent waste water line segments between water loop connector, increase the cleaning solution inlet pipe for being equipped with the 6th shut-off valve S6, Washing lotion box Y is installed on the top of cleaning solution inlet pipe；On wastewater discharge pipe road, the 7th shut-off valve is installed in the end of L1 S7；When the dirt of flushing waste water heat energy utilization flow path, compressor shutdown, the 2nd shut-off valve is closed, and the 6th shut-off valve is open-minded, starts useless Water-circulating pump 7 allows cleaning solution to flow into heat energy utilization flow path from washing lotion box Y, and after wastewater outlet has cleaning solution, pause waste water is followed Ring pump, closes the 3rd, 6,7 shut-off valves, and the 4th shut-off valve is open-minded, allows and washs vacuole 1-2 hours, starts waste water circulating pump, washing water Circulation loop glide path are as follows: waste water circulating pump 7 → the 4th shut-off valve S4 → low-temperature working water source evaporator 3b → high-temperature level The water source shut-off valve of evaporator 3a → the 5th S5 → waste water circulating pump 7；The 2nd, 3,7 shut-off valves are opened in cleaning to be recycled 10-15 minutes, The 4th, 5 shut-off valves are closed, washes is discharged.

The double heat source heat pump water heater of the low-temperature working of the first heat pump combination device of the embodiment described 1, is equipped with Utilize bath wastewater spray pipeline S4；The bath wastewater spray pipeline is steamed from the water source of the Teat pump boiler of low-temperature working It separates a spray pipeline on the wastewater discharge pipe L1 of hair device wastewater outlet to guide to above wind regime evaporator 4b, wind regime evaporator is Coil heat exchanger, the leading portion of spray pipeline are equipped with the electric gate valve S8 of spent shower water, spray tube on wastewater discharge pipe Road latter end has spray apertures, can spray water to coil heat exchanger, end is shut；There are water receiving tank 11, water receiving tank bottom below coil heat exchanger Portion is connected with wastewater drainage pipe L6, draws waste water and is discharged into trench；Can use in winter waste water defrosting, can also ambient air temperature not Direct spent shower water when lower than subzero 5 DEG C, emptying gas source evaporator absorb the heat hot water preparing of waste water, the wind in spent shower water Fan stalling.

Temperature, pressure signal detection processing system, the electrical equipment control of the first heat pump combination device of the embodiment described 1 System；Main detection signal has the first, second, third and fourth temperature for being mounted on each heat exchanger inlet and outlet on clear water heating channel Gauge head, T1, T2, T3 and T4, be mounted on each heat exchanger inlet and outlet on waste water heat energy utilization flow path the five, the six, seven, eight temperature Gauge head, T5, T6, T7 and T8, and it is mounted on the ambient air temperature gauge head of wind regime evaporator air inlet, the 9th temperature gauge head, T9； High and low pressure gauge Pa1, Pa2 of the refrigerant circulation loop of hot operation, the refrigerant circulation loop of low-temperature working it is high and low Pressure gauge Pb1, Pb2, tap water pressure table P1；Flow gauge head has the clear water flow meter G1 being mounted on clear water flow path, is mounted on Waste water stream meter G2 on waste water heat energy utilization flow path；It includes: hot water flow regulating valve TF1 that clear water flow, which adjusts accessory, water inlet Electromagnet cut off valve Dl, clear water flow are adjusted by clear water flow PID controller manipulation hot water flow regulating valve；Wastewater flow by Frequency conversion waste water pump 7 is adjusted in wastewater flow PID controller.

The principle of the energy saving optimizing control method of the first heat pump combination device of the embodiment described 1 is:

(5) thermal energy of cascade utilization waste water heat source preferentially directly heats clear water in the way of different transfer of heat, secondly just uses heat pump Mode step by step lifting waste water low-temperature heat quantity heat clear water.

According to mentioned above principle and theoretical calculation, the first the heat pump combination device energy saving optimizing control method determined is:

(1) initial stage, including boiler utilize air heat energy hot water preparing without storing in hot water or wastewater disposal basin without waste water； When ambient air temperature is higher than 15 ± 3 DEG C, the wind regime evaporator system work of the double heat source heat pump water heater of hot operation is started, when When ambient air temperature is lower than 15 ± 3 DEG C, the wind regime evaporator system work of the double heat source heat pump water heater of low-temperature working is started, certainly The wind regime evaporator system of hot operation and low-temperature working double heat source heat pump water heater is allowed to work at the same time, heating clear water is straight The hot water stored to boiler reaches design water；

(2) in the bathing stage for having had waste water, starting waste water heat energy utilization flow path system, waste water first successively passes through waste water- The waste water path of the water source evaporator of clear water heat exchanger, the water source evaporator of hot operation and low-temperature working；At the beginning of the waste water of reference Beginning, temperature T5 was about 32-34 DEG C, and waste water temperature T6 is about 21-23 DEG C after waste water-clear water heat exchanger heat exchange, and waste water cools down about 10-11 DEG C, through hot operation water source evaporator heat exchange, waste water temperature T7 drops to 12-14 DEG C, and waste water cools down about 9 DEG C, through low temperature work The water source evaporator heat exchange of work, waste water temperature T8 drop to 5-7 DEG C, and waste water cools down about 7 DEG C, and water resource heat pump utilizes bath wastewater temperature The limit is 4 DEG C, it is ensured that T8 > 4 DEG C；

When ambient air temperature T9 is higher than 25 DEG C, the wind regime evaporator 4a work of hot operation, the water source of hot operation does not work, low The water source evaporator 3b of warm grade works, then the water source evaporator inflow temperature T7 of low-temperature working will be 21-23 DEG C, therefore device has Very high heating efficiency and output power；

When ambient air temperature T9 is in 15-25 DEG C of section, the water source evaporator 3a of hot operation and the wind regime evaporator 4b of low-temperature working Work, because only 12-14 DEG C of T7, T7 < T9；

When ambient air temperature T9 < 15 DEG C, water source evaporator 3a, 3b of hot operation and low-temperature working work；

When ambient air temperature T9 < 0 DEG C, and when wastewater flow rate deficiency, switching three-way valve F, the wind regime evaporator operation of low-temperature working；? 10 DEG C -5 DEG C subzero, the solenoid valve D2 of spray pipeline can be opened, with the wind regime evaporator of waste water spray low-temperature working, is given up at this time Coolant-temperature gage is about 10 DEG C, and spent shower water can defrost, and waste water can be reduced to temperature more lower than 4 DEG C, and equipment does not freeze Risk, and can increase caloric receptivity；

(3) cleaning of waste water heat energy utilization flow path, when water reuse efficiency is substantially reduced, such as waste water-clear water heat exchanger is useless Water outlet temperature or discharge of wastewater temperature are 2-3 DEG C or waste water displacement is obvious less than normal should start waste water smaller than normal temperature value The wash cycle of heat energy utilization flow path；It rule of thumb data can also provide to start the time interval of wash cycle；

The structural relation of second of heat pump combination device of embodiment 2 is as shown in Fig. 2, and embodiment 2 is of the invention Two kinds of heat pump combination devices, double heat source heat pump water heater, the water resource heat pump of a low-temperature working including a hot operation are warm The composition of hydrophone and an independent air source heat pump water heater；The double heat source heat pump water heater and waste water-of its hot operation are clear Water- to-water heat exchanger 6, boiler 8, the group Chengdu of waste water circulating pump are identical as embodiment 1；The water source heat of the low-temperature working of embodiment 2 The composition of the refrigerant circulation loop of pump water heater is with connection type: compressor 1c exhaust outlet connects the air inlet of condenser 2c Mouthful, the import of the liquid outlet connection flow controller Jc of condenser, the outlet of flow controller connect with the import of water source evaporator 3c, goes out Mouth is connect with the import of gas-liquid separator 5c；The outlet of gas-liquid separator and the air inlet of compressor connect, the circuit being linked to be Fill refrigerant.

Referring to attached drawing 2, the refrigerant circulation loop of the independent air source heat pump water heater of the embodiment described 2, feature is Flow controller is all-season flow controller, and connection type is: compressor 1b exhaust outlet connects the air inlet of condenser 2b, condenser Refrigerant outlet connection flow controller import, flow controller is all-season flow controller, by two branches flow controller Jb, Jt simultaneously Join, the outlet in parallel of two-way flow controller is connect with the import of air-source evaporator 4b, and outlet is with gas-liquid separator 5b's Import connection；The outlet of gas-liquid separator is connect with the air inlet of compressor 1b, the circuit filling refrigerant being linked to be；Described The two-way flow controller of all-season flow controller is the big dedicated flow controller Jb of suitable winter of throttling degree all the way, another way be for Spring and autumn Xia Sanji increases the by-pass throttle device Jt of amount of restriction, and winter dedicated flow controller selects electricity on the basis of pressing 0 DEG C of ambient air temperature Sub- expansion valve or heating power expansion valve or capillary, the larger refrigerant flow of throttling degree are less than normal；By-pass throttle device be for make up because Ambient air temperature increases the problem of compressor air suction amount increases and adds, and by-pass throttle device is electronic stepping throttle valve, from winter to summer, Change by ambient air temperature from 10 DEG C to 40 DEG C of temperature, every heating 5 DEG C of increases, one grade of aperture, starting aperture is 0；The throttling in summer in spring and autumn Amount is the total refrigerant flow of two-way in parallel；The pressure difference at summer flow controller both ends is small, and refrigerant flow is big, throttle valve Aperture is big, and spring and autumn day takes second place, winter bypass throttle device is closed；The evaporator of the air source hot pump water heater is wind regime evaporation Device is mounted on outdoor, and is furnished with fan；Its condenser is that clear water heater is installed indoors, is pacified with water source source heat pump water heater In a casing；

The independent air source heat pump water heater of embodiment 2, which is equipped with, utilizes bath wastewater spray pipeline L4 and bypass hot gas line L5；The bath wastewater spray pipeline L4 is the discharge of wastewater from the water source evaporator wastewater outlet of low-temperature level Teat pump boiler It separates a spray pipeline L4 on pipe L1 to guide to above wind regime evaporator 4b, wind regime evaporator is coil heat exchanger, spray pipeline Leading portion electric spraying gate valve S8 is installed on wastewater discharge pipe, spray pipeline end has spray apertures to spray coil heat exchanger There are water receiving tank 11 in water, coil heat exchanger lower section, and water receiving trench bottom is connected with wastewater drainage pipe L6；Ambient air temperature is not less than in winter It may be by the caloric receptivity that waste water increases air source hot pump water heater at subzero 5 DEG C, waste water spray can defrost；The side Logical hot gas line L5, is to be connect on hot gas tubule to the inlet ductwork of wind regime evaporator from compressor exhaust pipe, in hot gas Hot gas electromagnet cut off valve D3 is installed on pipeline；It is to protect that hot gas line only needs to defrost too low with evaporator pressure in no waste water Shield compressor uses when safe.

The process connection type of the clear water heating channel of second of heat pump combination device of embodiment 2, is on water inlet pipe Being equipped with into water shut-off valve S1, water inlet electromagnet cut off valve D1, inlet gage P1 can add in the hypodynamic occasion of running water pressure Add booster pump；Become on the hot water outlet pipe that hot water sends to boiler 8 in clear water by heating, be equipped with hot water flow valve G1 and Hot water flow regulating valve TF1；The process connection type of the clear water heating channel of second of heat pump combination device as described in example 2 It is to provide the running water pipe and waste water-clear water heat exchanger 6, the condenser 2b of air source hot pump water heater, low-temperature working of clear water The condenser 2c of double heat source heat pump water heater, the condenser 2a of the double heat source heat pump water heater of hot operation water-flowing path successively Connection, is finally sent to boiler 8 by hot water outlet pipe.

The waste water heat energy utilization flow path of embodiment 2 and wash composition, connection type and the workflow of water-flow circuit with Embodiment 1 is identical.

The principle of the optimization control method of second of heat pump combination device of the embodiment described 2 is identical as embodiment 1.

The specific optimization control method of second of heat pump combination device of embodiment 2 is:

(1) initial stage, including boiler absorb air heat energy hot water preparing without storing in hot water or wastewater disposal basin without waste water； It starts the wind regime evaporator 4a of the double heat source heat pump water heater of hot operation and is the work of independent air source Teat pump boiler, heating is clear Water reaches design water until the hot water that boiler stores；

(2) in the bathing stage for having had waste water, starting waste water heat energy utilization flow path system, waste water first successively passes through waste water- Clear water heat exchanger 6, hot operation double heat source heat pump water source evaporator 3a and low-temperature working double heat source heat pump water heater The waste water path of water source evaporator 3b；

When ambient air temperature T9 is higher than 25 DEG C, the wind regime evaporator 4a work of the double heat source heat pump water heater of hot operation, low temperature The water source evaporator operation of the double heat source heat pump water heater of work；It is hot operation and low when ambient air temperature is in 25-15 DEG C of section Water source evaporator 3a, 3c work of temperature work, the Fa2 valve of the refrigerant branch of the wind regime evaporator of hot operation is closed, independent When wind source heat pump water heater participates in work, by-pass throttle valve Jt selects aperture according to ambient air temperature；

When ambient air temperature T9 is lower than 15 DEG C, the water source evaporator of the double heat source heat pump water heater of hot operation and low-temperature working 3a, 3b work, the work of independent air source Teat pump boiler, by-pass throttle valve Jt are closed, and compressor 1b and fan start；

(3) discharge temperature limit that heat energy of bathing waste water utilizes is 4 DEG C；When the heat energy of bathing waste water limit utilizes, clear water water inlet temperature Degree is 12.5 DEG C, when hot water temperature is 45 DEG C, be can satisfy by the energy for drawing waste water and using double heat source heat pump water heater The heat balance of bathing clear water；If inflow temperature be lower than 12.5 DEG C, supplement the source of energy, should in the non-bathing time, It is worked using independent air source Teat pump boiler, supplement is single from the insufficient energy of bath wastewater heat absorption；Winter waste water heat energy utilization stream Road reference temperature at different levels: waste water initial temperature T5 (32-34 DEG C), the temperature T6 after waste water-clear water heat exchanger 6 exchanges heat are 21-23 DEG C, be 12-14 DEG C using the temperature T7 after the water source evaporator 3a heat exchange of the double heat source heat pump of hot operation, then pass through Temperature T8 after crossing the water source evaporator 3c heat exchange of low-temperature working is reduced to 5-7 DEG C；

(4) when ambient air temperature T9 is lower than the water source evaporator discharged waste water temperature T8 of low-temperature working, and T9 is higher than subzero 5 DEG C when, open the solenoid valve S8 on spray pipeline, draw the wind regime heat exchanger in waste water spray independent air source, fan when spent shower water It shuts down；When temperature is lower than subzero 5 DEG C, solenoid valve S8 is closed, compressor 1b and fan 9b is opened, absorbs the thermal energy of Cryogenic air Water heating, this situation, COP are low；

(5) independent air source Heat Pump should be opened during non-bathing on daytime with subzero 15 DEG C of sections lower than 0 DEG C in ambient air temperature Hydrophone work, supplements hot water, and by-pass throttle valve Jt is closed；

(6) cleaning of waste water heat energy utilization flow path, when water reuse efficiency is substantially reduced, such as waste water-clear water heat exchanger is useless Water outlet temperature or discharge of wastewater temperature are 2-3 DEG C or waste water displacement is obvious less than normal should start waste water smaller than normal temperature value The wash cycle of heat energy utilization flow path；Rule of thumb data regulation it can also start wash cycle；

The defrosting of independent air source heat pump water heater: temperature may be by waste water defrosting at subzero 5 DEG C or more in winter, in gas Temperature is at subzero 5 DEG C hereinafter, with bypass hot gas defrosting.

Attached drawing 3 is the structural relation and principle explanatory diagram of the third 3 system of heat pump combination device embodiment of the invention, Embodiment 3 is the water source heat pump water heater and an independent air source heat for including a hot operation and a low-temperature working The third heat pump combination device of the composition of pump water heater；The composition of the water source heat pump water heater of the hot operation of embodiment 3 and company Connecing mode is the air inlet that exhaust outlet of compressor connects condenser, the import of the refrigerant outlet connection flow controller of condenser, section The outlet of stream device is connect with the import of water source evaporator, and outlet is connect with the import of gas-liquid separator；Gas-liquid separator goes out Mouth is connect with the air inlet of compressor, the circuit filling refrigerant being linked to be；The water resource heat pump hot water of the low-temperature working of embodiment 3 The composition of device and independent air source hot pump water heater, connection type are all same as Example 2；Its operating method, embodiment 2 The work that the air-source evaporator of the Teat pump boiler of high temperature work undertakes, replacement are independent air source hot pump water heater i.e. It can.

Claims

1. three kinds of double heat source heat pump water heater combined devices and its energy saving optimizing control method, referred to as three kinds of heat pump groups attach together It sets；Its first heat pump combination device is made of the double heat source heat pump water heater of a hot operation and a low-temperature working；Its Second of heat pump combination device, by the double heat source heat pump water heater of hot operation and the water resource heat pump heat of a low-temperature working Hydrophone and an independent air source heat pump water heater composition；Its third heat pump combination device, by a hot operation and one The water source heat pump water heater of a low-temperature working and an independent air source heat pump water heater form；Three kinds of heat pump combination devices are all also It include a waste water-clear water heat exchanger, waste water circulating pump, boiler, wastewater disposal basin；Operation has refrigerant circulation to return in device Road, clear water heating channel, waste water heat energy utilization flow path, washing water-flow circuit and temperature, pressure signal detection processing system, Electrical control system；The refrigerant circulation loop all includes compressor, condenser, evaporator, flow controller, gas-liquid point From device, connecting line；The condenser is for heating clear water；

2. three kinds of heat pump combination devices according to claim 1, it is characterised in that: the third described heat pump combination device Independent air source heat pump water heater flow controller, be all-season flow controller, be formed in parallel by the flow controller of two branches, one Road is the big dedicated flow controller of suitable winter of throttling degree, and another way is the by-pass throttle device for increasing amount of restriction for spring and autumn Xia Sanji, Winter dedicated flow controller selects electric expansion valve or heating power expansion valve or capillary on the basis of 0 DEG C of ambient air temperature, throttling It spends larger and refrigerant flow is less than normal；By-pass throttle device is to make up because ambient air temperature increases the problem of compressor air suction amount increases And add, by-pass throttle device is electronic stepping throttle valve, from winter to summer, is changed by ambient air temperature from 10 DEG C to 40 DEG C of temperature, often It heats up 5 DEG C and increases by one grade of aperture, starting aperture is 0；The amount of restriction in summer in spring and autumn is the total refrigerant flow of two-way in parallel；Summer The pressure difference at flow controller both ends is small, and refrigerant flow is big, and the aperture of throttle valve is big, and spring and autumn day takes second place, winter by-pass throttle device It closes.

3. three kinds of heat pump combination devices according to claim 1, it is characterised in that: the first described heat pump combination device Low-temperature working double heat source heat pump water heater and second and third kind of heat pump combination device independent air source heat pump water heater, peace Equipped with utilization bath wastewater spray pipeline；The bath wastewater spray pipeline is from the water source of the Teat pump boiler of low-temperature working A spray pipeline is separated on the wastewater discharge pipe of evaporator wastewater outlet, is guided to above wind regime evaporator, and wind regime evaporator is Coil heat exchanger, the leading portion of spray pipeline are equipped with the electric gate valve of spent shower water, spray pipeline on wastewater discharge pipe Latter end has spray apertures, can spray water to coil heat exchanger, end is shut；There is water receiving tank below coil heat exchanger, water receiving trench bottom connects It is connected to wastewater drainage pipe, draws waste water and is discharged into trench；It can use waste water defrosting in winter, zero can also be not less than in ambient air temperature Direct spent shower water at lower 5 DEG C, emptying gas source evaporator absorb the heat hot water preparing of waste water, and in spent shower water, fan stops Turn.

4. three kinds of heat pump combination devices according to claim 1, it is characterised in that: second and third kind of heat pump combination The independent air source heat pump water heater of device, is also equipped with bypass hot gas line；The bypass hot gas line is from compressor It is connect on exhaust pipe on hot gas tubule to the inlet ductwork of wind regime evaporator, the cut-off of hot gas electromagnetism is installed on hot gas line Valve；Hot gas line is only used when no waste water needs to defrost and evaporator pressure is too low safe for protection compressor.

5. three kinds of heat pump combination devices according to claim 1, it is characterised in that: the stream of the clear water heating channel Journey is equipped with into water shut-off valve, water inlet electromagnet cut off valve, inlet gage, in the hypodynamic field of running water pressure on water inlet pipe It closes, booster pump can be added；Become on the hot water outlet pipe that hot water sends to boiler in clear water by heating, hot water flow is installed Valve and hot water flow regulating valve；The process connection type of the clear water heating channel of the first heat pump combination device is: mentioning Condenser, the hot operation of the double heat source heat pump water heater of running water pipe and waste water-clear water heat exchanger, low-temperature working for clear water The water-flowing path of condenser of double heat source heat pump water heater be sequentially connected, be finally sent to boiler via hot water outlet pipe；

6. three kinds of heat pump combination devices according to claim 1, it is characterised in that: the waste water heat energy utilization flow path Process connection type is: the wastewater inlet pipe of wastewater disposal basin successively with waste water circulating pump, waste water-clear water heat exchanger waste water path, The water source evaporator waste water path of hot operation, the water source evaporator waste water path of low-temperature working, the connection of wastewater discharge pipe road, most Waste water is discharged into trench afterwards；The water inlet end of wastewater inlet pipe is equipped with water non-return valve.

7. three kinds of heat pump combination devices according to claim 1, it is characterised in that: the washing water-flow circuit is The recycled back circuit of waste water heat energy utilization flow path；The composition and connection type of the washing water-flow circuit are: in waste water Increase a washing water water return pipeline between water inlet and waste water-clear water heat exchanger waste water inlet of circulating pump, in washing water Washing water backflow non-return valve is installed on water return pipeline, is denoted as the 5th shut-off valve；In the water outlet and low-temperature working of waste water circulating pump Water source evaporator wastewater outlet between increase a washing water water supply conduit, be equipped with the 4th in washing water water supply conduit Shut-off valve；On the water outlet of waste water circulating pump and the connecting line of waste water-clear water heat exchanger waste water inlet, it is equipped with the 3rd Shut-off valve；It is also equipped with the 2nd shut-off valve on water inlet segment of the waste water circulating pump close to wastewater disposal basin, in the 2nd shut-off valve and waste water In influent waste water line segments between the import of circulating pump, piece washing with the 6th shut-off valve of cleaning solution shut-off valve of vertical grafting Liquid inlet pipe is equipped with washing lotion box on the top of cleaning solution inlet pipe；One is installed in the end on wastewater discharge pipe road 7th shut-off valve；When the dirt of flushing waste water heat energy utilization flow path, compressor shutdown, the 2nd shut-off valve is closed, and the 6th shut-off valve is opened It is logical, waste water circulating pump is started, allows cleaning solution to flow into waste water heat energy utilization flow path from washing lotion box, has cleaning solution to wastewater outlet Afterwards, suspend waste water circulating pump, close the 3rd, 6,7 shut-off valves, the 4th shut-off valve is opened, and is allowed and is washed vacuole 1-2 hours, and waste water is started Circulating pump washs water-flow circuit glide path are as follows: waste water circulating pump → 4 shut-off valves → low-temperature working water source evaporator Water source evaporator → 5 shut-off valves → waste water circulating pump of → hot operation；It is 10-15 minutes to be cleaned, open the 2nd, 3,7 cut-offs Valve closes the 4th, 5 shut-off valves, discharges washes.

8. three kinds of heat pump combination devices according to claim 1, it is characterised in that: at the temperature, pressure signal detection Reason system, electrical control system；Main detection signal has be mounted on each heat exchanger inlet and outlet on clear water heating channel One, two, three, four temperature gauge head is mounted on the five, the six, seven, eight temperature of each heat exchanger inlet and outlet on waste water heat energy utilization flow path Gauge head is spent, and is mounted on the ambient air temperature gauge head of wind regime evaporator air inlet, the 9th gauge head；The refrigerant circulation of hot operation The high and low pressure gauge in circuit, the high and low pressure gauge of the refrigerant circulation loop of low-temperature working, tap water pressure table；Flow is surveyed Head has the clear water flow meter being mounted on clear water flow path, the waste water stream meter being mounted on waste water heat energy utilization flow path；Clear water stream It includes: hot water flow regulating valve that amount, which adjusts accessory, and electromagnet cut off valve of intaking, clear water flow is manipulated by clear water flow PID controller Hot water flow regulating valve is adjusted；Wastewater flow is adjusted frequency conversion waste water pump by wastewater flow PID controller.

9. three kinds of heat pump combination devices according to claim 1, it is characterised in that: the principle of the optimization control method It is:

10. three kinds of heat pump combination devices according to claim 1, it is characterised in that: described optimizes the excellent of control method The specific method for changing manipulation is: