CN105258389A - Compensation type dual-source heat pump cold and hot water unit - Google Patents
Compensation type dual-source heat pump cold and hot water unit Download PDFInfo
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Abstract
The invention discloses a compensation type dual-source heat pump cold and hot water unit which comprises a refrigerating system, a ventilating system and a compensation type water source system, wherein the refrigerating system comprises a refrigerant circulating loop composed of a water source heat exchanger, an air cooling heat exchanger, an application side water heat exchanger, a compressor and a four-way valve; the compensation type water source system comprises a heat source side secondary refrigerant circulating loop; the heat source side secondary refrigerant circulating loop is formed by sequentially connecting a compensating surface air cooler, a water source heat exchanger, an underearth heat exchanging coil, a water pump, and a compensating surface air cooler electrically operated valve; a compensating surface air cooler bypass electrically operated valve is arranged on the heat source side secondary refrigerant circulating loop. Through the cooperative operation of the refrigerating system, the ventilating system and the compensation type water source system, six modes of the unit namely ground source heating, air source heating, ground source refrigeration, air source refrigeration, defrosting operation and heat compensation operation are realized, so that the defect in the prior art that sufficient heat cannot be stably provided for a long time is effectively overcome.
Description
Technical field
The present invention relates to heat pump air conditioner technical field, particularly relates to a kind of compensation double-source heat pump water chiller-heater unit.
Background technology
Ground-source heat pump cold-hot water machine group existing common at present, utilizes source, ground to provide Cooling and Heat Source, and the refrigeration for water chiller-heater unit is run with heat system, provides idle call cold water or hot water.
In general, earth source heat pump set is primarily of composition circulation loops such as compressor, condenser, evaporimeter, expansion valve and cross valves.Under refrigerating state, the high pressure refrigerant vapor that compressor is discharged, condenser is flowed into through cross valve, refrigerant vapour is condensed into liquid, enters evaporimeter through expansion valve, and absorbs heat in evaporimeter, cool indoor water, refrigerant vapour after evaporation, is sucked by compressor after cross valve, completes kind of refrigeration cycle; Heating under state, first adjusting turning to of cross valve, the high pressure refrigerant vapor of being discharged by compressor, evaporimeter is flowed into through cross valve, now condenser is used as by evaporimeter, and refrigerant vapor condenses releases latent heat, heats indoor water, condensed liquid refrigerant, enter condenser through expansion valve, now evaporimeter is used as by condenser, absorbs external heat and evaporates, steam after evaporation is sucked by compressor after cross valve, completes and heats circulation.For split type earth source heat pump unit, during cooling in summer, off-premises station is condenser, indoor set is evaporimeter, and winter is then condenser with indoor set, off-premises station is evaporimeter.
Application number be 201410397955.5 patent of invention disclose a kind of double-purpose heat exchange multi-connected air conditioner, comprise compressor, cross valve, indoor air cooling heat exchanger and outdoor heat exchange system, outdoor heat exchange system forms closed cycle loop by refrigerant tubing and compressor, cross valve, indoor air cooling heat exchanger, outdoor heat exchange system comprises double-purpose heat exchanger and soil heat exchanger, coolant channel is provided with in double-purpose heat exchanger, anti-freeze water solution passage is provided with, soil heat exchanger and anti-freeze water solution Tandem in coolant channel.During cooling in summer, high-temperature high-pressure refrigerant is absorbed heat by anti-freeze water solution and becomes cryogenic high pressure cold-producing medium in coolant channel; During winter heating, the cold-producing medium of low-temp low-pressure flows into the heat that coolant channel absorbs anti-freeze water solution.Although this invention solves north part and really adopts the machine building heat supplying problem that hot pump in low temp unit heating efficiency is too low without heating municipal administration thermal source winter, but itself and be not suitable for only need heating operation, the heating operation time is long and area that the refrigerating operaton time is short, because enough heats cannot be compensated summer to source, ground, the heat in source, ground can be caused fewer and feweri.
Application number be 201420456574.5 utility model patent disclose a kind of soil composite type variable refrigerant flow aircondition, comprise compressor, cross valve, indoor air cooling heat exchanger and outdoor heat exchange system, outdoor heat exchange system comprises outdoor air cooling heat exchanger, water cooling heat exchanger and soil heat exchanger; Outdoor air cooling heat exchanger and water cooling heat exchanger parallel connection, outdoor air cooling heat exchanger branch road and water cooling heat exchanger branch road are respectively arranged with air cooling heat exchanger magnetic valve and water cooling heat exchanger magnetic valve.This invention carries out the switching of refrigerant line by magnetic valve, uses time different.Although this utility model can solve the unbalanced soil that causes of Summer and winter cooling and heating load for the problem of thermal failure, but it also and be not suitable for and only need heating operation, the heating operation time is long and area that the refrigerating operaton time is shorter, if this device to be applied to these areas, source, ground provides heat winter, but enough heats cannot be compensated summer to source, ground, cause the heat in source, ground fewer and feweri, after engineering completes, source can provide enough heats for unit incipiently, after but service time is elongated, shortage of heat in source, ground is to provide the heat needed for unit, the engineering later stage is caused to run to intelligent stable.
Summary of the invention
In view of this, the object of the invention is to overcome the deficiencies in the prior art, a kind of compensation double-source heat pump water chiller-heater unit is provided, solve source heat pump air-conditioner traditionally and heat time long and problem that cooling time short-range missile causes ground source heat amount is unbalance.
In order to solve the problems of the technologies described above, the present invention adopts following scheme to realize:
A kind of compensation double-source heat pump water chiller-heater unit, comprise refrigeration system and ventilating system, described refrigeration system comprises water source heat exchanger, air cooling heat exchanger, use side water-to-water heat exchanger, the refrigerant circulation loop of compressor and cross valve composition, described ventilating system comprises the matching used condensation fan with air cooling heat exchanger, also comprise compensation water resource system, described compensation water resource system comprises the compensation meter cooler being connected into heat source side refrigerating medium circulation loop successively, water source heat exchanger, buried heat exchange coil, water pump, compensation meter cooler motor-driven valve, compensation meter cooler and compensation meter cooler motor-driven valve are parallel with compensation meter cooler bypass motor-driven valve simultaneously, water source heat exchanger is parallel with the first water source heat exchanger motor-driven valve, pass through refrigeration system, the operation that matches of ventilating system and compensation water resource system, the source, ground realizing unit heats, air-source heats, source, ground refrigeration, air-source freezes, Defrost operation and concurrent heating run six kinds of patterns.
When air cooling heat exchanger is in running order, water source heat exchanger is in off working state, unit utilizes air-source to carry out freezing or heating; When water source heat exchanger is in running order, air cooling heat exchanger is not in running order, unit utilizes source, ground to carry out heating or freezing; Compensation water resource system and refrigeration system share a water source heat exchanger, and the cold-producing medium in the refrigerating medium in compensation water resource system and water source heat exchanger carries out heat exchange.Air-conditioning carries out source heating operation for a long time, water source heat exchanger absorbs heats a large amount of in source, ground, make ground source in heat reduce gradually, and arrived air-conditioning carry out in short time source refrigerating operaton time, water source heat exchanger release heat give ground source, but because cooling time is short, water source heat exchanger cannot compensate enough heats to source, ground, causes ground source heat amount unbalance, when again heating for a long time, source, ground is not enough to provide enough heat water-supply source heat exchangers, and air-conditioning cannot normally be run.Therefore, the present invention is according to the needs of temperature, do not need to carry out to heat or refrigerating operaton time, realize concurrent heating by the keying of change compensation meter cooler motor-driven valve, compensation meter cooler bypass motor-driven valve, the first water source heat exchanger motor-driven valve to run, among the heat compensation in air to source, ground, when being specially the compensation meter cooler bypass motor-driven valve closedown when water pump, compensation meter cooler motor-driven valve and the first water source heat exchanger motor-driven valve unlatching, now concurrent heating operation can be carried out.The present invention is particluarly suitable for only needing heating operation, the heating operation time is long and area that the refrigerating operaton time is short uses, by the heat compensation in compensation water resource system source over the ground, can ensure the heat in source meet the user demand in whole winter.
Described compensation meter cooler and air cooling heat exchanger share a condensation fan.Both share condensation fans, can be cost-saving and reduce the volume of unit, and reduce noise, the heat exchange of compensation meter cooler and the heat exchange of air cooling heat exchanger do not interfere with each other, multiple stage condensation fan raising condensation effect.
Also comprise reservoir and gas-liquid separator in described refrigerant circulation loop, reservoir is located at air cooling heat exchanger and is used between the water-to-water heat exchanger of side, and gas-liquid separator is located between cross valve and compressor.
The load change that adaptation evaporimeter is set of reservoir, when evaporation load increases, cold-producing medium supply also increases, by the liquid storage supply of reservoir; When evaporation load diminishes, refrigerant requirements amount also diminishes, and unnecessary refrigerant storage is in reservoir, and reservoir also can avoid cold-producing medium accumulate within the condenser too much and heat transfer area is diminished simultaneously.Gas-liquid separator can prevent the some refrigerant not obtaining evaporating in evaporation process from entering compressor, ensure that the eupraxic running of compression.
Described refrigerant circulation loop is specially:
Exhaust outlet of compressor is connected with cross valve first interface, cross valve second interface is imported and exported with water source heat exchanger first cold-producing medium and is connected, water source heat exchanger second refrigerant is imported and exported and is connected to the import and export of air cooling heat exchanger first cold-producing medium by water source heat exchanger expansion valve, described water source heat exchanger expansion valve is parallel with water source heat exchanger check valve, make the cold-producing medium flowed out from water source heat exchanger by water source heat exchanger check valve, described water source heat exchanger and water source heat exchanger expansion valve second water source heat exchanger motor-driven valve in parallel simultaneously;
Air cooling heat exchanger second refrigerant is imported and exported and is connected to reservoir first interface by air cooling heat exchanger expansion valve, described air cooling heat exchanger expansion valve is parallel with air cooling heat exchanger check valve, make the cold-producing medium flowed out from air cooling heat exchanger by air cooling heat exchanger check valve, described air cooling heat exchanger and air cooling heat exchanger expansion valve air cooling heat exchanger motor-driven valve in parallel simultaneously;
Also be provided with reservoir check valve between air cooling heat exchanger expansion valve and reservoir first interface, make cold-producing medium flow to reservoir by reservoir check valve;
Reservoir second interface connects filter and liquid pipe motor-driven valve successively, liquid pipe motor-driven valve uses side water-to-water heat exchanger second refrigerant to import and export by using side water-to-water heat exchanger expansion valve to be connected to, described liquid pipe motor-driven valve is connected to air cooling heat exchanger expansion valve by liquid pipe check valve simultaneously, makes cold-producing medium flow to air cooling heat exchanger expansion valve by liquid pipe check valve;
Using side water-to-water heat exchanger second refrigerant to import and export simultaneously by using side water-to-water heat exchanger check valve to be connected with reservoir first interface, making to flow to reservoir from the cold-producing medium using side water-to-water heat exchanger to flow out by using side water-to-water heat exchanger check valve;
Use side water-to-water heat exchanger first cold-producing medium to import and export to be connected with cross valve the 4th interface, cross valve the 3rd interface is connected to compressor return air mouth by gas-liquid separator.
By above each parts composition refrigerant circulation loop, according to actual needs, open and closed corresponding check valve, magnetic valve, the source, ground realizing unit heat, air-source heats, source refrigeration, air-source refrigeration, Defrost operation and concurrent heating operation, specific as follows:
When unit carry out source, ground heat time, in compensation water resource system, refrigerating medium flow process is: the refrigerating medium extruded by water pump enters water source heat exchanger by compensation meter cooler bypass motor-driven valve, then enters buried heat exchange coil, then gets back to water pump; In refrigeration system, refrigerant flow circuit is: exhaust outlet of compressor cold-producing medium out enters cross valve, flowed out by cross valve and flow to reservoir by use side water-to-water heat exchanger, use side water-to-water heat exchanger check valve successively, then water source heat exchanger is entered by filter, liquid pipe motor-driven valve, liquid pipe check valve and air cooling heat exchanger motor-driven valve, water source heat exchanger expansion valve successively, the cold-producing medium flowed out from water source heat exchanger gets back to compressor return air mouth by cross valve and gas-liquid separator successively, then row circulates next time.
When source, ground heats, exhaust outlet of compressor out be high-temperature high-pressure refrigerant, enter after using side water-to-water heat exchanger, heating uses the water of side, then be condensed into high pressure refrigerant liquid, form Low temperature low pressure liquid and enter water source heat exchanger after water source heat exchanger expansion valve throttling, the heat that evaporation absorbs refrigerating medium forms low temperature and low pressure steam, get back to compressor by cross valve and gas-liquid separator afterwards, complete a circulation.
When unit carry out air-source heat time, in refrigeration system, refrigerant flow circuit is: exhaust outlet of compressor cold-producing medium out enters cross valve, flowed out by cross valve and enter reservoir by use side water-to-water heat exchanger, use side water-to-water heat exchanger check valve successively, then air cooling heat exchanger is entered by filter, liquid pipe motor-driven valve, liquid pipe check valve, air cooling heat exchanger expansion valve successively, the cold-producing medium flowed out from air cooling heat exchanger gets back to compressor return air mouth by second water source heat exchanger motor-driven valve, cross valve and gas-liquid separator successively, then row circulates next time.
When air-source heats, exhaust outlet of compressor out be high-temperature high-pressure refrigerant, enter after using side water-to-water heat exchanger, heating uses the water of side, then be condensed into high pressure refrigerant liquid, form Low temperature low pressure liquid and enter air cooling heat exchanger after the throttling of air cooling heat exchanger expansion valve, the heat of evaporation absorption condensation blower fan forced flow air forms low temperature and low pressure steam, get back to compressor by cross valve and gas-liquid separator afterwards, complete a circulation.
When unit carries out source, ground refrigeration, in compensation water resource system, refrigerating medium flow process is: the secondary refrigerant liquid extruded by water pump enters water source heat exchanger by compensation meter cooler bypass motor-driven valve, then enters buried heat exchange coil, then gets back to water pump; In refrigeration system, refrigerant flow circuit is: enter cross valve by exhaust outlet of compressor cold-producing medium out, flowed out by cross valve and flow to reservoir by water source heat exchanger, water source heat exchanger check valve, air cooling heat exchanger motor-driven valve and reservoir check valve successively, then flow to by filter, liquid pipe motor-driven valve and use side water-to-water heat exchanger expansion valve successively and use side water-to-water heat exchanger, get back to compressor return air mouth by cross valve and gas-liquid separator successively from the cold-producing medium using side water-to-water heat exchanger to flow out, then row circulates next time.
During the refrigeration of source, ground, exhaust outlet of compressor out be high-temperature high-pressure refrigerant, enter water source heat exchanger and be condensed into high pressure refrigerant liquid by refrigerating medium, after using side water-to-water heat exchanger expansion valve throttling, form Low temperature low pressure liquid enter use side water-to-water heat exchanger, the heat that evaporation absorbs water forms low temperature and low pressure steam, get back to compressor by cross valve and gas-liquid separator afterwards, complete a circulation.
When unit carries out air-source refrigeration or Defrost operation, in refrigeration system, refrigerant flow circuit is: enter cross valve by exhaust outlet of compressor cold-producing medium out, flowed out by cross valve and pass through second water source heat exchanger motor-driven valve successively, air cooling heat exchanger, air cooling heat exchanger check valve and reservoir check valve flow to reservoir, then filter is passed through successively, liquid pipe motor-driven valve and use side water-to-water heat exchanger expansion valve flow to and use side water-to-water heat exchanger, compressor return air mouth is got back to by cross valve and gas-liquid separator successively from the cold-producing medium using side water-to-water heat exchanger to flow out, row circulates next time again,
When air-source refrigeration or Defrost operation, exhaust outlet of compressor out be high-temperature high-pressure refrigerant, entering the air cooling heat exchanger blower fan forced flow air setting that is condensed becomes high pressure refrigerant liquid or heating to melt the frosting on air cooling heat exchanger surface, after using side water-to-water heat exchanger expansion valve throttling, form Low temperature low pressure liquid enter use side water-to-water heat exchanger, the heat that evaporation absorbs water forms low temperature and low pressure steam, get back to compressor by cross valve and gas-liquid separator afterwards, complete a circulation.
When unit carries out concurrent heating operation, in compensation water origin system, refrigerating medium flow process is: the secondary refrigerant liquid extruded by water pump enters compensation meter cooler by compensation meter cooler motor-driven valve, then buried heat exchange coil is entered by the first water source heat exchanger motor-driven valve, then get back in water pump, then row circulates next time.
When concurrent heating runs, enter the heat in the refrigerating medium absorption air of compensation meter cooler, after entering buried heat exchange coil, refrigerating medium is cooled, and whole cyclic process supplements the heat in source, ground.
Compared with prior art, the present invention has following beneficial effect:
1, the present invention except have adopt ground source, air-source to carry out freezing and heating function except, also there is the function of thermal compensation, according to the control of reality by unit, ground can be realized source heats, air-source heats, source refrigeration, air-source refrigeration, Defrost operation and concurrent heating run six kinds of patterns; At summer and transition season, the low temperature cold source in land used source or air-source can be made to carry out confession cold operation, economize energy, heat compensation gives source, ground simultaneously; When not needing cooling, thermal compensation operation can be carried out as required, among the heat compensation in air to source, ground, storing; In winter, the low-temperature heat source in source, ground or air-source can be adopted to carry out heat supply, economize energy, ensure that the heat in source, ground meets the user demand in winter;
2, the present invention's problem of causing ground source heat amount unbalance after effectively solving in prior art commonly source heat pump refrigerating and heating unit long-play, can long-term stability enough water chiller-heater unit be provided to run institute's calorific requirement, adopt and innovate and rational design and method of operation layout, ensure that in source, ground, heat meets the user demand in whole winter; The present invention is reasonable in design, energy-efficient, multiple functional, stable and reliable operation, long service life, the instructions for use of varying environment can be applicable to.
Accompanying drawing explanation
Fig. 1 is embodiment schematic diagram;
Wherein, 11, compressor; 12, cross valve; 13, second water source heat exchanger motor-driven valve; 14, water source heat exchanger; 15, water source heat exchanger check valve; 16, water source heat exchanger expansion valve; 17, air cooling heat exchanger; 18, air cooling heat exchanger motor-driven valve; 19, air cooling heat exchanger check valve; 21, water pump; 22, compensation meter cooler bypass motor-driven valve; 23, compensation meter cooler motor-driven valve; 24, compensation meter cooler; 25, the first water source heat exchanger motor-driven valve; 26, buried heat exchange coil; 31, condensation fan; 110, air cooling heat exchanger expansion valve; 111, reservoir check valve; 112, reservoir; 113, filter; 114, liquid pipe motor-driven valve; 115, liquid pipe check valve; 116, side water-to-water heat exchanger expansion valve is used; 117, side water-to-water heat exchanger check valve is used; 118, side water-to-water heat exchanger is used; 119, gas-liquid separator; A, the refrigerating medium water inlet of use side; B, use side refrigerating medium water outlet.
Detailed description of the invention
In order to allow those skilled in the art understand technical scheme of the present invention better, below in conjunction with accompanying drawing, the present invention is further elaborated.
Embodiment 1
As shown in Figure 1, a kind of compensation double-source heat pump water chiller-heater unit, comprise refrigeration system, ventilating system and compensation water resource system, described refrigeration system comprises the refrigerant circulation loop that water source heat exchanger 14, air cooling heat exchanger 17, use side water-to-water heat exchanger 118, compressor 11 and cross valve 12 form, and is specially:
Compressor 11 exhaust outlet is connected with cross valve 12 first interface, cross valve 12 second interface is imported and exported with water source heat exchanger 14 first cold-producing medium and is connected, water source heat exchanger 14 second refrigerant is imported and exported and is connected to the import and export of air cooling heat exchanger 17 first cold-producing medium by water source heat exchanger expansion valve 16, described water source heat exchanger expansion valve 16 is parallel with water source heat exchanger check valve 15, make the cold-producing medium flowed out from water source heat exchanger 14 by water source heat exchanger check valve 15, described water source heat exchanger 14 and water source heat exchanger expansion valve 16 second water source heat exchanger motor-driven valve 13 in parallel simultaneously;
Air cooling heat exchanger 17 second refrigerant is imported and exported and is connected to reservoir 112 first interface by air cooling heat exchanger expansion valve 110, described air cooling heat exchanger expansion valve 110 is parallel with air cooling heat exchanger check valve 19, make the cold-producing medium flowed out from air cooling heat exchanger 17 by air cooling heat exchanger check valve 19, described air cooling heat exchanger 17 and air cooling heat exchanger expansion valve 110 air cooling heat exchanger motor-driven valve 18 in parallel simultaneously;
Also be provided with reservoir check valve 111 between air cooling heat exchanger expansion valve 110 and reservoir 112 first interface, make cold-producing medium flow to reservoir 112 by reservoir check valve 111;
Reservoir 112 second interface connects filter 113 and liquid pipe motor-driven valve 114 in turn, liquid pipe motor-driven valve 114 uses side water-to-water heat exchanger 118 second refrigerant to import and export by using side water-to-water heat exchanger expansion valve 116 to be connected to, described liquid pipe motor-driven valve 114 is connected to air cooling heat exchanger expansion valve 110 by liquid pipe check valve 115 simultaneously, makes cold-producing medium flow to air cooling heat exchanger expansion valve 110 by liquid pipe check valve 115;
Using side water-to-water heat exchanger 118 second refrigerant to import and export simultaneously by using side water-to-water heat exchanger check valve 117 to be connected with reservoir 112 first interface, making to flow to reservoir 112 from the cold-producing medium using side water-to-water heat exchanger 118 to flow out by using side water-to-water heat exchanger check valve 117;
Use side water-to-water heat exchanger 118 first cold-producing medium to import and export to be connected with cross valve 12 the 4th interface, cross valve 12 the 3rd interface is connected to compressor 11 gas returning port by gas-liquid separator 119.
Described ventilating system comprises the matching used condensation fan 31 with air cooling heat exchanger 17.
Described compensation water resource system comprises the compensation meter cooler 24, water source heat exchanger 14, buried heat exchange coil 26, water pump 21, the compensation meter cooler motor-driven valve 23 that are connected into refrigerating medium circulation loop successively, described compensation meter cooler 24 and compensation meter cooler motor-driven valve 23 are parallel with compensation meter cooler bypass motor-driven valve 22 simultaneously, described water source heat exchanger 14 is parallel with the first water source heat exchanger motor-driven valve 25, and described compensation meter cooler 24 shares a condensation fan 31 with air cooling heat exchanger 17.
By the operation that matches of refrigeration system, ventilating system and compensation water resource system, the source, ground realizing unit heats, air-source heats, source refrigeration, air-source refrigeration, Defrost operation and concurrent heating run six kinds of operational modes.
Claims (9)
1. a compensation double-source heat pump water chiller-heater unit, comprise refrigeration system and ventilating system, described refrigeration system comprises water source heat exchanger, air cooling heat exchanger, use side water-to-water heat exchanger, the refrigerant circulation loop of compressor and cross valve composition, described ventilating system comprises the matching used condensation fan with air cooling heat exchanger, it is characterized in that, also comprise compensation water resource system, described compensation water resource system comprises the compensation meter cooler being connected into heat source side refrigerating medium circulation loop successively, water source heat exchanger, buried heat exchange coil, water pump, compensation meter cooler motor-driven valve, compensation meter cooler and compensation meter cooler motor-driven valve are parallel with compensation meter cooler bypass motor-driven valve simultaneously, water source heat exchanger is parallel with the first water source heat exchanger motor-driven valve, pass through refrigeration system, the operation that matches of ventilating system and compensation water resource system, the source, ground realizing unit heats, air-source heats, source, ground refrigeration, air-source freezes, Defrost operation and concurrent heating run six kinds of patterns.
2. compensation double-source heat pump water chiller-heater unit according to claim 1, is characterized in that, described compensation meter cooler and air cooling heat exchanger share one or more condensation fan.
3. compensation double-source heat pump water chiller-heater unit according to claim 1, it is characterized in that, also comprise reservoir and gas-liquid separator in described refrigerant circulation loop, reservoir is located at air cooling heat exchanger and is used between the water-to-water heat exchanger of side, and gas-liquid separator is located between cross valve and compressor.
4. compensation double-source heat pump water chiller-heater unit according to claim 3, it is characterized in that, described refrigerant circulation loop is specially:
Exhaust outlet of compressor is connected with cross valve first interface, cross valve second interface is imported and exported with water source heat exchanger first cold-producing medium and is connected, water source heat exchanger second refrigerant is imported and exported and is connected to the import and export of air cooling heat exchanger first cold-producing medium by water source heat exchanger expansion valve, described water source heat exchanger expansion valve is parallel with water source heat exchanger check valve, make the cold-producing medium flowed out from water source heat exchanger by water source heat exchanger check valve, described water source heat exchanger and water source heat exchanger expansion valve second water source heat exchanger motor-driven valve in parallel simultaneously;
Air cooling heat exchanger second refrigerant is imported and exported and is connected to reservoir first interface by air cooling heat exchanger expansion valve, described air cooling heat exchanger expansion valve is parallel with air cooling heat exchanger check valve, make the cold-producing medium flowed out from air cooling heat exchanger by air cooling heat exchanger check valve, described air cooling heat exchanger and air cooling heat exchanger expansion valve air cooling heat exchanger motor-driven valve in parallel simultaneously;
Also be provided with reservoir check valve between air cooling heat exchanger expansion valve and reservoir first interface, make cold-producing medium flow to reservoir by reservoir check valve;
Reservoir second interface connects filter and liquid pipe motor-driven valve successively, liquid pipe motor-driven valve uses side water-to-water heat exchanger second refrigerant to import and export by using side water-to-water heat exchanger expansion valve to be connected to, described liquid pipe motor-driven valve is connected to air cooling heat exchanger expansion valve by liquid pipe check valve simultaneously, makes cold-producing medium flow to air cooling heat exchanger expansion valve by liquid pipe check valve;
Using side water-to-water heat exchanger second refrigerant to import and export simultaneously by using side water-to-water heat exchanger check valve to be connected with reservoir first interface, making to flow to reservoir from the cold-producing medium using side water-to-water heat exchanger to flow out by using side water-to-water heat exchanger check valve;
Use side water-to-water heat exchanger first cold-producing medium to import and export to be connected with cross valve the 4th interface, cross valve the 3rd interface is connected to compressor return air mouth by gas-liquid separator.
5. compensation double-source heat pump water chiller-heater unit according to claim 4, it is characterized in that, when unit carry out source, ground heat time, in compensation water resource system, refrigerating medium flow process is: the refrigerating medium extruded by water pump enters water source heat exchanger by compensation meter cooler bypass motor-driven valve, then enter buried heat exchange coil, then get back to water pump;
In refrigeration system, refrigerant flow circuit is: exhaust outlet of compressor cold-producing medium out enters cross valve, flowed out by cross valve and flow to reservoir by use side water-to-water heat exchanger, use side water-to-water heat exchanger check valve successively, then water source heat exchanger is entered by filter, liquid pipe motor-driven valve, liquid pipe check valve and air cooling heat exchanger motor-driven valve, water source heat exchanger expansion valve successively, the cold-producing medium flowed out from water source heat exchanger gets back to compressor return air mouth by cross valve and gas-liquid separator successively, then row circulates next time.
6. compensation double-source heat pump water chiller-heater unit according to claim 4, it is characterized in that, when unit carry out air-source heat time, in refrigeration system, refrigerant flow circuit is: exhaust outlet of compressor cold-producing medium out enters cross valve, flowed out by cross valve and pass through successively to use side water-to-water heat exchanger, side water-to-water heat exchanger check valve is used to enter reservoir, then filter is passed through successively, liquid pipe motor-driven valve, liquid pipe check valve, air cooling heat exchanger expansion valve enters air cooling heat exchanger, the cold-producing medium flowed out from air cooling heat exchanger passes through second water source heat exchanger motor-driven valve successively, compressor return air mouth got back to by cross valve and gas-liquid separator, row circulates next time again.
7. compensation double-source heat pump water chiller-heater unit according to claim 4, it is characterized in that, when unit carries out source, ground refrigeration, in compensation water resource system, refrigerating medium flow process is: the secondary refrigerant liquid extruded by water pump enters water source heat exchanger by compensation meter cooler bypass motor-driven valve, then enter buried heat exchange coil, then get back to water pump;
In refrigeration system, refrigerant flow circuit is: enter cross valve by exhaust outlet of compressor cold-producing medium out, flowed out by cross valve and flow to reservoir by water source heat exchanger, water source heat exchanger check valve, air cooling heat exchanger motor-driven valve and reservoir check valve successively, then flow to by filter, liquid pipe motor-driven valve and use side water-to-water heat exchanger expansion valve successively and use side water-to-water heat exchanger, get back to compressor return air mouth by cross valve and gas-liquid separator successively from the cold-producing medium using side water-to-water heat exchanger to flow out, then row circulates next time.
8. compensation double-source heat pump water chiller-heater unit according to claim 4, it is characterized in that, when unit carries out air-source refrigeration or Defrost operation, in refrigeration system, refrigerant flow circuit is: enter cross valve by exhaust outlet of compressor cold-producing medium out, flowed out by cross valve and pass through second water source heat exchanger motor-driven valve successively, air cooling heat exchanger, air cooling heat exchanger check valve and reservoir check valve flow to reservoir, then filter is passed through successively, liquid pipe motor-driven valve and use side water-to-water heat exchanger expansion valve flow to and use side water-to-water heat exchanger, compressor return air mouth is got back to by cross valve and gas-liquid separator successively from the cold-producing medium using side water-to-water heat exchanger to flow out, row circulates next time again.
9. compensation double-source heat pump water chiller-heater unit according to claim 4, it is characterized in that, when unit carries out concurrent heating operation, in compensation water origin system, refrigerating medium flow process is: the secondary refrigerant liquid extruded by water pump enters compensation meter cooler by compensation meter cooler motor-driven valve, then buried heat exchange coil is entered by the first water source heat exchanger motor-driven valve, then get back in water pump, then row circulates next time.
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| CN201510823587.0A CN105258389A (en) | 2015-11-24 | 2015-11-24 | Compensation type dual-source heat pump cold and hot water unit |
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| CN201510823587.0A CN105258389A (en) | 2015-11-24 | 2015-11-24 | Compensation type dual-source heat pump cold and hot water unit |
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| CN110160171A (en) * | 2019-05-05 | 2019-08-23 | 清华大学 | A kind of multi-mode water ring multi-online air-conditioning system |
| CN110160171B (en) * | 2019-05-05 | 2024-04-30 | 清华大学 | Multi-mode water ring multi-split air conditioning system |
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Inventor after: Zhu Jianzhang Inventor after: Lin Chuanghui Inventor after: Zou Zhisheng Inventor after: He Weiguo Inventor after: Zhao Jianhua Inventor after: Peng Yu Inventor after: Wu Gaofeng Inventor after: Wu Donghua Inventor before: Lin Chuanghui Inventor before: He Weiguo Inventor before: Peng Yu Inventor before: Wu Gaofeng Inventor before: Wu Donghua Inventor before: Li Yongfeng |
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Effective date of registration: 20170426 Address after: 528313 Shunde City, Foshan province Chencun town machinery and equipment Park, No. ten, No. Road, No. 8 Applicant after: GUANGDONG SHENLING AIR-CONDITIONING EQUIPMENT CO., LTD. Applicant after: China Railway Third Survey and Design Institute Group Ltd. Address before: 528313 Shunde City, Foshan province Chencun town machinery and equipment Park, No. ten, No. Road, No. 8 Applicant before: GUANGDONG SHENLING AIR-CONDITIONING EQUIPMENT CO., LTD. |
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Application publication date: 20160120 |