The groundwater heat pump domestic air conditioning
Technical field the utility model relates to the domestic air conditioning technology, and concrete is a kind of by utilizing underground water heat energy, obtains the groundwater heat pump domestic air conditioning of nature energy.
The existing domestic air conditioning of background technology is air-cooled heat pump type structure, and in summer high temperature and winter during cold snap, heat pump is opposite with Building Heat workload demand trend, and efficient reduces greatly.Be in when outside air temperature under the situation of high temperature, the discharge temperature of compressor is limited, and the heat that outdoor air can be taken away is also limited, and the compressor heat load increases the power consumption increase.The normal air heat pump type air conditioner directly is thrown into heat in the atmosphere, causes greenhouse effects, becomes a kind of vicious circle.When environment temperature was lower than the balance point temperature of heat pump work, it is very little that its heat supply efficiency also can become.And because the reduction of environment temperature, existing air-conditioning must reduce evaporating temperature can extract a spot of heat energy from air, contained moisture will be adsorbed on the outdoor evaporimeter and forms frost in the air, cause the air can not the convection current transducing, at this moment consumed power goes defrost again, the defrost water-setting build-ups ice, and this result opposite with the thermic load demand trend rolls up the consumption of the energy.
The summary of the invention the purpose of this utility model is to have the big defective of power consumption in order to overcome above existing domestic air conditioning, the groundwater heat pump domestic air conditioner of a kind of storage that utilizes soil to have, release function is provided, from underground water, extract and release heat energy, it is stored in the underground, for recycling.
The present utility model technical scheme is described as follows: include the storage tank device, and indoor set and off-premises station, the storage tank device has storage tank, upper and lower water pipe promotes water pump and high water tank controller, and off-premises station has compressor, four-way change-over valve, capillary, water-to-water heat exchanger, electronic liquid level sensor, antifreeze magnetic valve, antifreeze temperature controller, heat exchange magnetic valve, drain solenoid valve.The storage tank upper hose is connected lifting water pump and water-to-water heat exchanger respectively with downcomer, between downcomer and water-to-water heat exchanger water inlet, be connected to the heat exchange magnetic valve, the upper and lower outlet pipe of water-to-water heat exchanger connects drain solenoid valve and antifreeze magnetic valve respectively, annular heat exchanger tube two of water-to-water heat exchanger connects four-way change-over valve and capillary respectively, and the back links to each other with indoor set with compressor.Be equipped with antifreeze temperature controller and electronics liquid level sensor in the water-to-water heat exchanger, in the storage tank water fluid level controller arranged; The moving disconnected normally closed contact series connection of antifreeze electromagnetic valve coil and compressor relay back is in parallel with the heat exchange magnetic valve, close with compression is motor-driven that normal opened contact and antifreeze temperature controller are moving to be closed normal opened contact and link to each other again, antifreeze temperature controller is moving to be closed the normal opened contact other end and is connected to off-premises station power supply phase line, compressing motor-driven another termination indoor set that closes normal opened contact exports on compressor control line, behind compressor coil and the drain solenoid valve coils from parallel connection of coils, the moving disconnected normally closed contact of serial connection electronic liquid level sensor, the other end are connected on the indoor set output compressor control line.The electronic liquid level sensor power supply provides supply voltage by the compressor control line.Four-way change-over valve is controlled by indoor output four-way change-over valve control line.The high water tank controller directly is subjected to power supply phase line traffic control, compressor coil, drain solenoid valve coil, the heat exchange electromagnetic valve coil, antifreeze electromagnetic valve coil, lift pump coil, the four-way change-over valve coil, electronic liquid level sensor, the other end of high water tank controller is connected to public zero curve.
The utility model design characteristic is to utilize underground water source to substitute the atmosphere source of the gas, water source heat pump heating EER compares with traditional air source heat pump, exceed more than 40%, therefore, has the high-grade of saving electric energy, reduce power consumption greatly, alleviate electric power and must ask nervous contradiction, its operating cost is 50% of a common air supply heat pump type air conditioner.It adopts water-to-water heat exchanger, replaces the gas heat exchanger of former air conditioner, utilizes the water resource (about about 14 ℃) of underground normal temperature, to air-conditioning freeze, heating efficient height; Underground water constant water temperature is close with Building Heat workload demand trend, especially can overcome the balance point temperature of breaking away from air heat pump work winter, need not consumes energy be used for defrost.Therefore, outstanding economic worth is arranged, save the expense of family spending.Antifreeze temperature controller is installed in the water-to-water heat exchanger, can effectively prevents the freezing of water-to-water heat exchanger in winter.Fluid level controller is arranged in the storage tank, not only control the water level of storage tank, can also for a long time without air-conditioning the time, close the fluid level controller power supply, bleed off the water of system, help protection equipment, life-saving.Another advantage of the present utility model is particularly suitable for the central air-conditioning that founds a family, and same water resource system can be used for many air conditioners, can reduce integrated cost greatly.
Drawing key diagram 1 is the utility model topology view.
Fig. 2 is the electric circuit connection layout.
The 1-well, 2-promotes water pump, 3-upper hose, 4-desilting device, the 5-blowoff valve, 6-storage tank, 7-downcomer, 8-heat exchange magnetic valve, the 9-drain solenoid valve, the antifreeze magnetic valve of 10-, 11-water-to-water heat exchanger, 12-high water tank controller, the 13-electronic liquid level sensor, 14-water heat exchanger tube, the antifreeze temperature controller of 15-, 16-compressor, the 17-four-way change-over valve, 18-capillary, 19-off-premises station, the 20-indoor set, 21-filter sand bleeder valve, the 22-water tank cleans bottom valve.
The specific embodiment is made technology contents of the present utility model below in conjunction with accompanying drawing and being further specified:
The utility model comprises the compressor of normal domestic use air conditioner, four-way change-over valve, capillary, indoor set, control circuit.Promote water pump 2 slaves and pick up down and extract underground water in the well 1, supply water to storage tank 6, be connected to desilting device 4, silt impurity in the water is separated in the corner of upper hose 3 by upper hose 3, can be by blowoff valve 5 discharges.Water level height on the storage tank 6 is by 12 controls of high water tank controller, and high water tank controller 12 can design and adopt transistor liquid level meter or electronic level device or water tower fluid level controller.Storage tank 6 downcomers 7 lead air-conditioner outdoor unit 19 to heat exchange magnetic valve 8 places with water.Compressor 16 starts, and heat exchange magnetic valve 8 is opened synchronously, and water flows into water-to-water heat exchanger 11 and carries out heat exchange with heat exchanger tube 14, and the water after the heat exchange flows out through water-to-water heat exchanger 11 tops, and to drain solenoid valve 9, drain solenoid valve 9 moves simultaneously with compressor 16 by pipeline.After sandstone filter inverted well returns underground.Consult Fig. 2.
The utility model refrigeration, the heating conversion, temperature is set, time set, air output is set, and temperature is controlled automatically, anti-frosting, overcurrent, overvoltage, under-voltage protections etc. are indoor set, and circuit board and remote controller are finished.
Summer: off-premises station 19 power supply phase lines make lifting water pump 2 become the loop to get electric work with public zero curve by water tank hydraulic controller 12.Output compressor control line a in moving disconnected normally closed contact 13b one terminating room of compressor relay coil C16 series connection electronic liquid level sensor, another termination public zero curve gets electric work.The compressors in series relay is moving to be closed normal opened contact 16a and meets heat exchange electromagnetic valve coil C8, be connected in parallel on the moving disconnected normally closed contact 13b two ends of compressor relay coil C16 series connection electronic liquid level sensor and electric work.Absorbed air heat energy low-temp low-pressure freon steam in indoor set 20 evaporimeters, after 16 compressions of compressed machine, be converted to HTHP freon steam, by four-way change-over valve 17, the heat exchanger tube 14 that enters water-to-water heat exchanger 11 carries out heat exchange with underground; Heat exchange magnetic valve 8 works asynchronously with compressor 16, simultaneously water is imported water-to-water heat exchanger 11, the HTHP freon steam thermal energy that compressor 16 is discharged, and underground water is given in conduction, sends into sandstone through drain solenoid valve 9 and filters back filter filling well.The HTHP freon steam reduction that has discharged heat energy in water-to-water heat exchanger 11 becomes liquid, release of pressure vaporization once more after capillary 18 throttlings, and the evaporimeter that reenters indoor set 20 absorbs heat energy, finishes kind of refrigeration cycle.Behind storage tank 6 full waters, promote water pump 2 work by high water tank control 12 controls and stop.Promote the gap work of water pump 2, control water luxus consumption also can be for many machine waters.Underground water is by desilting device 4, and storage tank 6 is discharged silt sediment by filter sand bleeder valve 21 by blowoff valve 5 and water tank filter sand bleeder valve 21.Consult Fig. 1 and Fig. 2.
Winter: off-premises station 19 power supply phase lines make lifting water pump 2 become the loop to get electric work with public zero curve by high water tank controller 12.The moving disconnected normally closed contact 13 of compressor relay coil C16 series connection electronic liquid level sensor is connected on indoor set output compressor control line a, and another termination public zero curve gets electric work.The moving heat exchange electromagnetic valve coil C8 that closes normal opened contact 16a of compressors in series relay is connected in parallel on compressor relay coil C16 series connection electronic liquid level sensor and moves disconnected normally closed contact 13b two ends and get electric work.Indoor set 20 is with four-way change-over valve 17 commutations of off-premises station 19, and evaporimeter and condenser are converse.Compressor 16 will extract low temperature heat energy in the underground water from water-to-water heat exchanger 11 low-temp low-pressure freon steam sucks, and is converted into HTHP freon steam after compression, by the change of current to four-way change-over valve 17, be sent to indoor set 20 to indoor heating.HTHP freon steam is given thermal energy transfer in the room air, indoor cold air becomes liquid with the steam reduction of HTHP freon, after capillary 17 throttlings, and vaporization once more, enter water-to-water heat exchanger 11 heat exchange, the cold of room air is transmitted in the underground water; 8 work of heat exchange magnetic valve import water water-to-water heat exchanger 11 simultaneously, in the time of the heat transferred low-temp low-pressure freon steam in the underground water, indoor cold is transferred to sandstone through drain solenoid valve 9 filters inverted well.Behind storage tank 6 full waters, 2 work of high water tank control 12 control water pumps stop.Underground water is by desilting device 4, and the water of storage tank 6 is discharged silt sediment by filter by blowoff valve 5 and filter sand bleeder valve 21.Consult Fig. 1 and Fig. 2.
Preventing freeze in winter: when winter, compressor 16 was not worked, because coolant-temperature gages are minimum in the water-to-water heat exchanger 14, the antifreeze temperature controllers 15 that are installed in the water-to-water heat exchanger 11 will move at first, the power supply phase line by its moving normal opened contact 15a that closes for heat exchange electromagnetic valve coil C8.The moving normally closed contact 16b that closes of the compressor relay of leading up to is for antifreeze electromagnetic valve coil C10, heat exchange magnetic valve 8 and 10 actions of antifreeze magnetic valve, water flows by two magnetic valves, antifreeze magnetic valve 10 calibers are little, water consumption seldom, the GEOTHERMAL WATER in storage tank 6 and the pipeline enters in the heat exchanger 11, temperature is improved (greater than 0 ℃), antifreeze temperature controller 15 is disconnected, and water flows and stops, and it is antifreeze to utilize geothermal energy to carry out.
Shut down start again when winter is long: compressor relay coil C16, drain solenoid valve coil C10 can not get electric startup because of moving disconnected normally closed contact 13 open circuits of electronic liquid level sensor.If environment temperature is higher than the setting of antifreeze temperature controller 15, design temperature heightened to make water-to-water heat exchanger 11 water inlet, treat that water level reaches moving disconnected normally closed contact 13 closures of electronic liquid level sensor, compressor 16, heat exchange magnetic valve 8, drain solenoid valve 9 enters automatic operation, at this moment antifreeze temperature controller 15 is recalled to former setting and gets final product.