CN104848590A - Tri-generation WSHP (Water Source Heat Pump) set - Google Patents
Tri-generation WSHP (Water Source Heat Pump) set Download PDFInfo
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- CN104848590A CN104848590A CN201510235753.5A CN201510235753A CN104848590A CN 104848590 A CN104848590 A CN 104848590A CN 201510235753 A CN201510235753 A CN 201510235753A CN 104848590 A CN104848590 A CN 104848590A
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- water
- loop
- water source
- valve
- domestic hot
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 202
- 239000003651 drinking water Substances 0.000 claims abstract description 45
- 235000020188 drinking water Nutrition 0.000 claims abstract description 45
- 239000008400 supply water Substances 0.000 claims description 22
- 230000001143 conditioned effect Effects 0.000 claims description 12
- 238000005338 heat storage Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 21
- 238000011084 recovery Methods 0.000 description 17
- 238000004378 air conditioning Methods 0.000 description 15
- 238000009833 condensation Methods 0.000 description 13
- 230000005494 condensation Effects 0.000 description 13
- 238000005057 refrigeration Methods 0.000 description 12
- 238000001816 cooling Methods 0.000 description 10
- 239000003507 refrigerant Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000007906 compression Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a tri-generation WSHP (Water Source Heat Pump) set. The tri-generation WSHP set comprises a heat exchanger loop, a water source loop, a domestic hot water loop and an a water loop for an air conditioner, wherein the heat exchange loop is sequentially provided with a compressor, a primary condenser, a secondary condenser, an expansion valve and an evaporator; the water source loop is sequentially provided with a water source inlet, a primary heat exchange section, a secondary heat exchange section, a third heat exchange section and a water source outlet in an installing direction of the water source loop, wherein the primary heat exchange section extends to the primary condenser, the secondary heat exchange section extends to the secondary condenser, and the third heat exchange section extends the evaporator. The tri-generation WSHP set provided by the invention has the beneficial effects of simultaneously realizing the tri-generation of a heat source of the domestic hot water loop, the heat source of the air conditioner loop and a cold source of the air conditioner loop, or helping a drinking water loop realize four-generation.
Description
Technical field
The present invention relates to a kind of water source heat pump units, be specifically related to a kind of trilogy supply water source heat pump units.
Background technology
The heat recovery type water source heat pump unit of current prior art utilizes condensation heat tap water heating to be become domestic hot-water or other technique hot water, it utilizes the exhaust sensible heat of compressor and partial condensation latent heat to carry out first step heating to hot water, and after-heat is taken away by condenser.Its operation principle: in order to the condensation heat produced when recycling refrigeration, the condenser of plain edition water resource heat pump is changed over the form of heat recovering heat exchanger (refrigerant loop/supplying hot water loop)+condenser (refrigerant loop/cooling water loop) by heat recovery type water source heat pump unit.No matter partial heat recovery type water source heat pump units or whole heat recovery type water source heat pump units, can only realize freezing preferentially run, heat preferential operation, separate refrigeration is run, heating operation four kinds of operating modes separately.Heat recovery type water source heat pump unit in summer can realize refrigeration and heat supply simultaneously, but the heat recovery type water source heat pump unit of prior art to produce two kinds of hot water parameters (heating and life heat) winter at present, and hot water parameter is generally 45 ~ 50 degree (air-conditioning heating operating modes) or 60 ~ 65 degree (domestic hot-water's heating condition) simultaneously.
Current water source heat pump units operational mode:
Operational mode one: all heat recovery type water source heat pump unit (refrigeration is preferential) can meet cooling refrigeration duty, when its heat recovering heat exchanger can not meet the thermic load of heat supply, heat by the heat recovering heat exchanger of whole heat recovery type water source heat pump unit and plain edition water source heat pump units BE/SRHH2402 the thermic load that (and regulating heating capacity) cooperation meets heat supply.
Operational mode two: all heat recovery type water source heat pump unit (refrigeration is preferential) can meet cooling refrigeration duty, when its heat recovering heat exchanger can meet the thermic load of heat supply, regulates the heating capacity of heat recovering heat exchanger to meet the thermic load of heat supply by its condenser.
Operational mode three: all heat recovery type water source heat pump unit (preferential oepration at full load of freezing) can not meet cooling refrigeration duty, heat recovering heat exchanger can meet the thermic load of heat supply, when its condenser regulates the heating capacity of heat recovering heat exchanger to meet the thermic load of heat supply, meet cooling refrigeration duty by plain edition water source heat pump units refrigeration (and regulating refrigerating capacity) cooperation.
Operational mode four: only have the thermic load of heat supply and be less than, when equaling a unit heating capacity, heat (and regulating heating capacity) by plain edition water source heat pump units and run the thermic load meeting heat supply.
Operational mode five: when only having the thermic load of heat supply and be greater than a unit heating capacity, combines by plain edition water source heat pump units and whole heat recovery type water source heat pump unit the thermic load that heating operation meets heat supply.
Wherein, the total heat recovery device of whole recuperation of heat unit and condenser, for being installed in parallel, are characterized in reclaiming heat ratio high, and the hot water amount provided is comparatively large, and hot water effluent's temperature is lower, compares the supply being suitable for air conditioning hot.Total heat recovery device and condenser can not work simultaneously.
The total heat recovery device of part recuperation of heat unit and condenser are for being installed in series, and be characterized in reclaiming heat ratio low, the hot water amount provided is less, and hot water effluent's temperature is higher, compares the supply being suitable for domestic hot-water.Total heat recovery device and condenser can work simultaneously.
Summary of the invention
The object of this invention is to provide a kind of trilogy supply water source heat pump units, its first-stage condenser by heat exchange loop and secondary condenser dispel the heat, to heat the one-level endotherm section being arranged on first-stage condenser and the secondary endotherm section being arranged on secondary condenser respectively, thermal source is provided so as to being respectively domestic hot-water loop and providing thermal source for conditioned water loop, absorb heat for conditioned water loop provides low-temperature receiver by the evaporimeter of heat exchange loop, realize simultaneously to the thermal source in domestic hot-water loop with this, the trilogy supply of the thermal source of air conditioner loop and the low-temperature receiver of air conditioner loop, adopt secondary condenser, the part of high temperature and high pressure gaseous refrigerant (temperature about 70 ~ 85 DEG C) that compressor is discharged enter first order condenser and domestic hot-water's (leaving water temperature is ~ 60 DEG C) carry out heat exchange after and another part cold-producing medium first mix, promote and enter second level condenser again after temperature rise and air conditioning hot (leaving water temperature is ~ 45 DEG C) carries out heat exchange, be condensed into the refrigerant liquid of middle temperature (30 ~ 50 DEG C) high pressure.Based on this principle, the art of this patent had both met domestic hot-water, the requirement of air conditioning hot leaving water temperature, can meet again the needs simultaneously providing domestic hot-water, air conditioning hot, the mutual adjustment can also carrying out to a certain degree to domestic hot-water's thermic load, air conditioning hot thermic load.Because of the condenser of trilogy supply unit water-in and water-out temperature comparatively under air conditioning condition plain edition water source heat pump units high, the operational efficiency of unit can decline, but the overall performance considering system (makes full use of condensation heat, provide free life/air-conditioning or Process heat water), still good power savings advantages is had, particularly be applicable to the occasion that air conditioning hot, domestic hot-water are provided as this kind of needs simultaneously in hotel, to overcome prior art above shortcomings.
The object of the invention is to be achieved through the following technical solutions: a kind of trilogy supply water source heat pump units, comprises heat exchange loop, loop, water source, domestic hot-water loop and conditioned water loop, wherein:
Described heat exchange loop is provided with compressor, first-stage condenser, secondary condenser, expansion valve and evaporimeter successively;
Loop, described water source is provided with water source water inlet, one-level heat exchange segment, secondary heat exchange segment, three grades of heat exchange segment and water source delivery port successively along its setting direction, described one-level heat exchange segment extends to described first-stage condenser, described secondary heat exchange segment extends to described secondary condenser, and described three grades of heat exchange segment extend to described evaporimeter;
Described domestic hot-water loop has the two ends extending to domestic hot-water Water District, and extend to the one-level endotherm section of described first-stage condenser, the position near its two ends on described domestic hot-water loop is equipped with valve, and described one-level endotherm section is provided with valve;
Described air conditioner loop has the two ends of the interface extending to conditioned water, and, extend to the radiating segment of described evaporimeter, extend to the secondary endotherm section of described secondary condenser, position near its two ends on described air conditioner loop is equipped with valve, described radiating segment and described secondary endotherm section are equipped with valve, described trilogy supply water source heat pump units also comprises controller, be arranged on the checkout gear on loop, described water source, be arranged on the checkout gear on described domestic hot-water loop, and, be arranged on the checkout gear on described conditioned water loop, the signal output part of all described checkout gears all communicates to connect with described controller, the control end of all described valves all communicates to connect with described controller, so as to realizing the interlock of described valve and described signal supervisory instrument.
Further, described checkout gear comprises pressure-detecting device and temperature-detecting device, and loop, described water source is all provided with described pressure-detecting device and described temperature-detecting device near the two ends of water source water inlet and water source delivery port; Described air conditioner loop is all provided with described pressure-detecting device and described temperature-detecting device on the position at its two ends; Described one-level endotherm section is provided with described pressure-detecting device and described temperature-detecting device.
Further, described checkout gear also comprises pressure sensor and temperature sensor, and loop, described water source is all provided with described pressure sensor and described temperature sensor near the two ends of water source water inlet and water source delivery port; Described air conditioner loop is all provided with described pressure sensor and described temperature sensor on the position at its two ends; Described one-level endotherm section is provided with described pressure sensor and described temperature sensor, described pressure sensor and described temperature sensor all communicate to connect with described controller.
Further, on described one-level endotherm section, on described secondary endotherm section and on described radiating segment, temperature sensor, pressure sensor and water flow switch are all installed.
Preferably, the quantity of described heat exchange loop, the quantity in described domestic hot-water loop and the quantity of described air conditioner loop are two.
Further, the two ends of two described one-level endotherm sections are connected with described water source delivery port with described water source water inlet respectively by an equalizing line, so as to the load variations in opposing domestic hot-water loop.
Further, the present invention also comprises Drinking Water loop, it has the two ends extending to Drinking Water district, and, extend to the one-level drinking water endotherm section of described first-stage condenser, and/or, extend to the secondary drinking water endotherm section of described secondary condenser, and/or, extend to the drinking water radiating segment of described evaporimeter; Position near its two ends on described Drinking Water loop is equipped with valve, on described one-level drinking water endotherm section, on described secondary drinking water endotherm section and on described drinking water radiating segment, described valve is all installed, all described valves all communicate to connect with described controller, described Drinking Water loop is provided with described checkout gear, and described detection and described controller communicate to connect.
Further, the pipeline between the two ends in described domestic hot-water loop and described first-stage condenser is all provided with half-volume type heat storage can, the pipeline between the two ends in described Drinking Water loop and described first-stage condenser is all provided with half-volume type heat storage can.
Further, the cold water inlet in described domestic hot-water loop and the hot water outlet pipe in described domestic hot-water loop are all provided with circulation power pump, and all described circulation power pumps all communicate to connect with described controller.
Further, the cold water inlet in described domestic hot-water loop and the water inlet pipe in described Drinking Water loop are all provided with filter.
Beneficial effect of the present invention is: the water source heat pump units of employing is refrigeration, heats and domestic hot-water's integration unit, one of feature is compared with current heat recovery type water source heat pump machine set technology and is not established heat regenerator, but condenser adopts secondary, only have the condenser of one-level can not improve domestic hot-water's supply water temperature because condensation has a narrow range of temperature to overcome thus reach the problem designing coolant-temperature gage, main is to ensure that first order condenser heat exchange area only calculates by sensible heat thermal discharge; Two be that air-conditioner water system and hot water supply system divide and offer, to guarantee to use simultaneously; Three be adopt volumetric heat exchanger, can ensure there is no heat exchange difference like this.Which solve at present for meet hot and cold load require to provide simultaneously time, usually need increase equipment, the problem of system and operating condition complexity thereof in design, to make the Energy Efficiency Ratio of whole system be improved, also make the configuration of unit more reasonable.When domestic hot-water's thermic load is less or without time, exerting oneself for meeting cooling load, being switched by pipeline and valve.
Accompanying drawing explanation
Fig. 1 is that water source heat pump system P & ID of the present invention schemes;
Fig. 2 is the pressure-enthalpy chart of heat exchange loop of the present invention.
In figure: 11, compressor; 121, first-stage condenser; 122, secondary condenser; 13, expansion valve; 14, evaporimeter; 20, air-conditioning; 30, water source; 401, valve F1; 402, valve F2; 403, valve F3; 404, valve F4; 405, valve F5; 406, valve F6; 407, valve F7; 408, valve F8; 409, valve F9; 410, valve F10; 411, valve F11; 412, valve F12; 413, valve F13; 414, valve F14; 415, valve F15; 416, valve F16; 417, valve F17; 418, valve F18; 419, valve F19; 420, valve F20; 421, valve F21; 422, valve F22; 423, valve F23; 424, valve F24; 501, Pressure gauge; 502, thermometer; 503, water flow switch; 504, pressure sensor; 505, temperature sensor; 6, half-volume type heat storage can; 7, circulation power pump.
Detailed description of the invention
Preferred embodiment
As shown in Figure 1, a kind of trilogy supply water source heat pump units, comprise heat exchange loop, loop, water source, domestic hot-water loop and conditioned water loop, wherein, described heat exchange loop is provided with successively compressor 11, first-stage condenser 121, secondary condenser 122, expansion valve 13 and evaporimeter 14, loop, described water source is provided with water source water inlet, one-level heat exchange segment, secondary heat exchange segment, three grades of heat exchange segment and water source delivery port successively along its setting direction, water source 30 flows into loop, water source from water source water inlet and flows out water source delivery port from water source delivery port, described one-level heat exchange segment extends to described first-stage condenser 121, described secondary heat exchange segment extends to described secondary condenser 122, and described three grades of heat exchange segment extend to described evaporimeter 14, described domestic hot-water loop has the two ends extending to domestic hot-water Water District, and extend to the one-level endotherm section of described first-stage condenser 121, the position near its two ends on described domestic hot-water loop is equipped with valve, and described one-level endotherm section is provided with valve, described air conditioner loop has the two ends of the interface extending to air-conditioning 20, and, extend to the radiating segment of described evaporimeter 14, extend to the secondary endotherm section of described secondary condenser 122, position near its two ends on described air conditioner loop is equipped with valve, described radiating segment and described secondary endotherm section are equipped with valve, described trilogy supply water source heat pump units also comprises controller, be arranged on the checkout gear on loop, described water source, be arranged on the checkout gear on described domestic hot-water loop, and, be arranged on the checkout gear on described conditioned water loop, the signal output part of all described checkout gears all communicates to connect with described controller, the control end of all described valves all communicates to connect with described controller, so as to realizing the interlock of described valve and described signal supervisory instrument.
Described checkout gear comprises pressure-detecting device and temperature-detecting device, and loop, described water source is all provided with described pressure-detecting device and described temperature-detecting device near the two ends of water source water inlet and water source delivery port; Described air conditioner loop is all provided with described pressure-detecting device and described temperature-detecting device on the position at its two ends; Described one-level endotherm section is provided with described pressure-detecting device and described temperature-detecting device.Pressure-detecting device is Pressure gauge 501, and temperature-detecting device is thermometer 502, and the pressure and temperature of correspondence position is checked at the scene of being convenient to.
Described checkout gear also comprises pressure sensor 504 and temperature sensor 505, and loop, described water source is all provided with described pressure sensor 504 and described temperature sensor 505 near the two ends of water source water inlet and water source delivery port; Described air conditioner loop is all provided with described pressure sensor 504 and described temperature sensor 505 on the position at its two ends; Described one-level endotherm section is provided with described pressure sensor 504 and described temperature sensor 505, described pressure sensor 504 and described temperature sensor 505 all communicate to connect with described controller, thus, the temperature and pressure data of correspondence position are transferred to controller, and stored, or/and, show to facilitate and this duty of the present invention is monitored.
On described one-level endotherm section, on described secondary endotherm section and on described radiating segment, temperature sensor 505, pressure sensor 504 and water flow switch 503 are all installed, water flow switch 503 and controller communicate to connect, in order to the temperature and pressure data of correspondence position are transferred to controller, and stored, or/and, show to facilitate and this duty of the present invention is monitored.
The quantity of described heat exchange loop, the quantity in described domestic hot-water loop and the quantity of described air conditioner loop are two, and as shown in Figure 1, according to actual needs, the quantity in above-mentioned loop also can be one or simultaneously for multiple simultaneously.The two ends of two described one-level endotherm sections are connected with described water source delivery port with described water source water inlet respectively by an equalizing line, so as to the load variations in opposing domestic hot-water loop.
The present invention also comprises Drinking Water loop (not shown in FIG.), it has the two ends extending to Drinking Water district, and, extend to the one-level drinking water endotherm section of described first-stage condenser 121, and/or, extend to the secondary drinking water endotherm section of described secondary condenser 122, and/or, extend to the drinking water radiating segment of described evaporimeter 14; Position near its two ends on described Drinking Water loop is equipped with valve, on described one-level drinking water endotherm section, on described secondary drinking water endotherm section and on described drinking water radiating segment, described valve is all installed, all described valves all communicate to connect with described controller, described Drinking Water loop is provided with described checkout gear, and described detection and described controller communicate to connect.By one-level drinking water endotherm section, secondary drinking water endotherm section, Drinking Water is preheated, temperature after its heating is respectively about 60 DEG C and about 45 DEG C, thus save the energy of heating spent by drinking water, by drinking water radiating segment, drinking water is dispelled the heat, save the energy spent by cooling drinking water.Thus cooperation domestic hot-water loop, conditioned water loop realize four alliances of source pump, meet diversified demand.
Pipeline between the two ends in described domestic hot-water loop and described first-stage condenser 121 is all provided with half-volume type heat storage can 6, the pipeline between the two ends in described Drinking Water loop and described first-stage condenser 121 is all provided with half-volume type heat storage can 6.In order to monitor the pressure in half-volume type heat storage can 6, pressure gauge connection is set thereon, in like manner also interface of having enough to eat and wear can be set thereon, have enough to eat and wear for connecting, Pressure gauge is for showing the pressure of half-volume type heat storage can 6 inside, and thermometer bulb can link as valve with Power Component and then control pipeline connection state of the present invention.If domestic hot-water's thermic load requires comparatively large, enclosed water storage tank volume can be increased.The design hour heating load of enclosed heat accumulation water pot is calculated as follows:
In formula:
The design hour heating load (W) of Qg---heat accumulation water pot;
Qh---heat consumption (W);
η---the effectively hot bulk coefficient of storage; Volumetric water heater η=0.75;
Thermal capacitance long-pending (L) always store by Vr---heat accumulation water pot;
T---heat consumption duration (h);
Tr---heater hot water effluent temperature (DEG C);
Tl---cold water temperature (DEG C), generally gets 5 DEG C;
ρ---hot water density (kg/L).
The cold water inlet in described domestic hot-water loop and the hot water outlet pipe in described domestic hot-water loop are all provided with circulation power pump 7, and all circulation power pumps 7 all communicate to connect with controller.The cold water inlet in described domestic hot-water loop and the water inlet pipe in described Drinking Water loop are all provided with filter.Be used for filtering the impurity in this loop, improve service life of the present invention.
The present invention adopts heat pump principle, and by a small amount of high-order electric energy input, summer, winter then extracted heat from water source by the transfer of heat in building in water source, realized Lowlevel thermal energy and shifted to high level heat.
For avoiding back gas carrying liquid, even causing wet stroke liquid hazards compressor 11, just needing the suction superheat within certain limit, to ensure only having dry saturated steam to enter compressor 11, and variable expansion valve 13 aperture, corresponding adjustment evaporimeter 14 liquid supply rate, finally sets suction superheat.Again because compressor 11 compression process is an approximate isentropic procedure, therefore compressor 11 is vented as superheated steam state, the refrigerant medium temperature that on Fig. 2,2 are located is higher than the refrigerant medium temperature at 2 ' some place (on saturated vaporline), for sensible heat exothermic process, 2 ' to 3 ' is latent heat exothermic process.This patent adopts trilogy supply water source heat pump units to recycle this part condensation sensible heat, and the recycling that both can reach this part condensation heat meets object that is energy-conservation and saving operating cost, and unit heats more energy-conservation than electrical heating; Domestic hot-water's supply water temperature in winter can be made again to remain in 60 ~ 65 degree of available temperature, and (determine according to refrigerant character, 2 be compressor 11 exhaust condition point, when adopting freon refrigerant generally all more than 65 degree.), code requirement designs coolant-temperature gage more than 60 degree.
The water source heat pump units that this patent adopts is refrigeration, heats and domestic hot-water's integration unit, one of feature is compared with current heat recovery type water source heat pump machine set technology and is not established heat regenerator, but condenser adopts secondary, only have the condenser of one-level can not improve domestic hot-water's supply water temperature because condensation has a narrow range of temperature to overcome thus reach the problem designing coolant-temperature gage, main is to ensure that first order condenser 121 heat exchange area only calculates by sensible heat thermal discharge; Two be that air-conditioner water system and hot water supply system divide and offer, to guarantee to use simultaneously; Three be adopt volumetric heat exchanger, can ensure there is no heat exchange difference like this.Which solve at present for meet hot and cold load require to provide simultaneously time, usually need increase equipment, the problem of system and operating condition complexity thereof in design, to make the Energy Efficiency Ratio of whole system be improved, also make the configuration of unit more reasonable.When domestic hot-water's thermic load is less or without time, exerting oneself for meeting cooling load, being switched by pipeline and valve (in figure F17 ~ F24).
Of the present invention increasingly automated in order to realize further, the present invention also comprises stop valve, ball valve, check-valves, differential pressure pickup and safety valve, and its installation site reference is as 2, and above-mentioned checkout gear all communicates to connect with controller.Thus the control realized the break-make of pipeline of the present invention, and extend its service life.
Though consider that this part condensation sensible heat only accounts for 10% ~ 15% (determining according to refrigerant character) of whole condensation heat (whole condensation heat generally accounts for 1.15 ~ 1.3 times of refrigerating capacity), but temperature is higher, for meeting in engineering the different requirement of domestic hot-water's thermic load, in conjunction with the heat reservoir of shower heating system, consider the feature that the general thermic load of shower heating system changed greatly in a day on the one hand, condensation effect change is frequent, causes the operating condition of unit unstable; Two aspects reduce the peak heat load of source pump, avoid source pump type selecting excessive; Three aspects are also in order to condensation heat is fully recycled.
By controlling the valve be arranged on loop, water source, domestic hot-water loop and conditioned water loop, meet different using forestland, above-mentioned loop all uses pipeline to connect, and valve of the present invention comprises valve F1401; Valve F2402; Valve F3403; Valve F4404; Valve F5405; Valve F6406; Valve F7407; Valve F8408; Valve F9409; Valve F10410; Valve F11411; Valve F12412; Valve F13413; Valve F14414; Valve F15415; Valve F16416; Valve F17417; Valve F18418; Valve F19419; Valve F20420; Valve F21421; Valve F22422; Valve F23423; Valve F24424; Arranging with reference to Fig. 1 of above-mentioned valve, above-mentioned valve can adopt electric butterfly valve.
As shown in Figure 1, during Various Seasonal, the keying of valve controls (use F1 generation meter valve F1401 in figure, the like represent valve F24424 to F24) to the connected mode of pipeline of the present invention and valve
During summer, air-conditioning needs cooling, and controller is according to the mode in upper table to the corresponding keying of each valve, and to make air-conditioning cooling, domestic hot-water's valve can freely open and close; During winter, air-conditioning need heat; Non-cooling, heating season, in like manner, in like manner, controller is according to the mode in upper table to the corresponding keying of each valve, and to make air-conditioning not work, domestic hot-water's valve can freely open and close, thus realize trilogy supply or together realize four alliances with drinking water loop.
Claims (10)
1. a trilogy supply water source heat pump units, is characterized in that, comprises heat exchange loop, loop, water source, domestic hot-water loop and conditioned water loop, wherein:
Described heat exchange loop is provided with compressor, first-stage condenser, secondary condenser, expansion valve and evaporimeter successively;
Loop, described water source is provided with water source water inlet, one-level heat exchange segment, secondary heat exchange segment, three grades of heat exchange segment and water source delivery port successively along its setting direction, described one-level heat exchange segment extends to described first-stage condenser, described secondary heat exchange segment extends to described secondary condenser, and described three grades of heat exchange segment extend to described evaporimeter;
Described domestic hot-water loop has the two ends extending to domestic hot-water Water District, and extend to the one-level endotherm section of described first-stage condenser, the position near its two ends on described domestic hot-water loop is equipped with valve, and described one-level endotherm section is provided with valve;
Described air conditioner loop has the two ends of the interface extending to conditioned water, and, extend to the radiating segment of described evaporimeter, extend to the secondary endotherm section of described secondary condenser, position near its two ends on described air conditioner loop is equipped with valve, described radiating segment and described secondary endotherm section are equipped with valve, described trilogy supply water source heat pump units also comprises controller, be arranged on the checkout gear on loop, described water source, be arranged on the checkout gear on described domestic hot-water loop, and, be arranged on the checkout gear on described conditioned water loop, the signal output part of all described checkout gears all communicates to connect with described controller, the control end of all described valves all communicates to connect with described controller, so as to realizing the interlock of described valve and described signal supervisory instrument.
2. trilogy supply water source heat pump units according to claim 1, it is characterized in that, described checkout gear comprises pressure-detecting device and temperature-detecting device, and loop, described water source is all provided with described pressure-detecting device and described temperature-detecting device near the two ends of water source water inlet and water source delivery port; Described air conditioner loop is all provided with described pressure-detecting device and described temperature-detecting device on the position at its two ends; Described one-level endotherm section is provided with described pressure-detecting device and described temperature-detecting device.
3. trilogy supply water source heat pump units according to claim 2, it is characterized in that, described checkout gear also comprises pressure sensor and temperature sensor, and loop, described water source is all provided with described pressure sensor and described temperature sensor near the two ends of water source water inlet and water source delivery port; Described air conditioner loop is all provided with described pressure sensor and described temperature sensor on the position at its two ends; Described one-level endotherm section is provided with described pressure sensor and described temperature sensor, described pressure sensor and described temperature sensor all communicate to connect with described controller.
4. trilogy supply water source heat pump units according to claim 3, is characterized in that, is all provided with temperature sensor, pressure sensor and water flow switch on described one-level endotherm section, on described secondary endotherm section and on described radiating segment.
5. trilogy supply water source heat pump units according to claim 4, is characterized in that, the quantity of described heat exchange loop, the quantity in described domestic hot-water loop and the quantity of described air conditioner loop are two.
6. trilogy supply water source heat pump units according to claim 5, it is characterized in that, the two ends of two described one-level endotherm sections are connected with described water source delivery port with described water source water inlet respectively by an equalizing line, so as to the load variations in opposing domestic hot-water loop.
7. the trilogy supply water source heat pump units according to any one of claim 1-6, it is characterized in that, also comprise Drinking Water loop, it has the two ends extending to Drinking Water district, and, extend to the one-level drinking water endotherm section of described first-stage condenser, and/or, extend to the secondary drinking water endotherm section of described secondary condenser, and/or, extend to the drinking water radiating segment of described evaporimeter; Position near its two ends on described Drinking Water loop is equipped with valve, on described one-level drinking water endotherm section, on described secondary drinking water endotherm section and on described drinking water radiating segment, described valve is all installed, all described valves all communicate to connect with described controller, described Drinking Water loop is provided with described checkout gear, and described detection and described controller communicate to connect.
8. trilogy supply water source heat pump units according to claim 7, it is characterized in that, pipeline between the two ends in described domestic hot-water loop and described first-stage condenser is all provided with half-volume type heat storage can, the pipeline between the two ends in described Drinking Water loop and described first-stage condenser is all provided with half-volume type heat storage can.
9. trilogy supply water source heat pump units according to claim 8, it is characterized in that, the cold water inlet in described domestic hot-water loop and the hot water outlet pipe in described domestic hot-water loop are all provided with circulation power pump, and all described circulation power pumps all communicate to connect with described controller.
10. trilogy supply water source heat pump units according to claim 9, is characterized in that, the cold water inlet in described domestic hot-water loop and the water inlet pipe in described Drinking Water loop are all provided with filter.
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Address after: 200233 No. 7, Lane 888, Tianlin Road, Minhang District, Shanghai Patentee after: Shanghai Energy Technology Development Co.,Ltd. Address before: 201100 No.7, Lane 888, Tianlin Road, Minhang District, Shanghai Patentee before: CPI ELECTRIC POWER ENGINEERING CO.,LTD. |
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