CN104359177A - Multifunctional total heat recovery type cold and hot water unit - Google Patents

Multifunctional total heat recovery type cold and hot water unit Download PDF

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Publication number
CN104359177A
CN104359177A CN201410679466.9A CN201410679466A CN104359177A CN 104359177 A CN104359177 A CN 104359177A CN 201410679466 A CN201410679466 A CN 201410679466A CN 104359177 A CN104359177 A CN 104359177A
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low
pressure refrigerant
temperature
refrigerant liquid
medium
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CN104359177B (en
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汤小波
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FERDLIS REFRIGERATION EQUIPMENT (HANGZHOU) Co Ltd
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FERDLIS REFRIGERATION EQUIPMENT (HANGZHOU) Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/001Compression cycle type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

The invention discloses a multifunctional total heat recovery type cold and hot water unit. The unit comprises a compressor, a fin type heat exchanger, a liquid storage device, an economizer, a throttling mechanism, a cooling evaporator, a gas-liquid separator and a heat recovery heat exchanger, which are communicated through a pipeline, wherein a first four-way reversing valve, a second four-way reversing valve, a first three-way reversing valve, a second three-way reversing valve, a first one-way valve, a second one-way valve and a third one-way valve are arranged on the pipeline; six running modes, i.e. a cooling mode, a heating mode, a hot water mode, a hot water plus cold water mode, a hot water defrosting mode and a heating defrosting mode, can be implemented by changing a pipeline communicating sequence. According to the multifunctional total heat recovery type cold and hot water unit, the efficiency of central air conditioning equipment is improved, the added value is increased, and waste heat is recycled to eliminate consumption in various energy resources the independent production of hot water and reduce environmental pollution.

Description

Total heat recovery formula multifunctional cold and hot water unit
Technical field
The present invention relates to central air-conditioning total heat recovery technical field, especially relate to a kind of total heat recovery formula multifunctional cold and hot water unit.
Background technology
Along with being becoming tight energy day in world wide, fossil fuel reduce and energy demand rises appreciably, impel people to explore energy-conservation new way and improve the effective rate of utilization of the energy, different according to the using energy source level of various countries, the energy of 43% ~ 70% is had mainly to lose with the form of used heat, also can cause city " tropical island effect ", therefore European and American developed countries attach great importance to the research and practice of air conditioner heat recovery technology, the secondary realizing heat energy utilizes, thus reduce direct consumption and the discharge of the energy, to reach the object of energy saving standard; In China, in recent years, the air conditioner heat recovery technology of China have also been obtained and developed rapidly, and the energy-saving effect in practical engineering application is quite obvious, is widely used in the places such as hotel, hospital, school, factory, large stadium.
Summary of the invention
The present invention uses refrigeration working medium condensation exothermic process liberated heat in central air-conditioning kind of refrigeration cycle to prepare hot water, and take into full account air conditioner load and the inconsistent situation of hot water load and heat, defrosting demand under hot water operating mode, refrigeration system can freezing, heat, freely switch according to demand under hot water, hot water+cold water, heating and defrosting, hot water defrosting's operating mode.
To achieve these goals, the present invention by the following technical solutions: total heat recovery formula multifunctional cold and hot water unit, includes the compressor of pipeline connection, finned heat exchanger, reservoir, economizer, throttle mechanism, refrigerating evaporator, gas-liquid separator, heat recovering heat exchanger, described pipeline is provided with the first four-way change-over valve, second four-way change-over valve, first three-way diverter valve, second three-way diverter valve, first check valve, second check valve, 3rd check valve, the first described four-way change-over valve respectively with compressor, second four-way change-over valve, heat recovering heat exchanger, gas-liquid separator be communicated with, the second described four-way change-over valve also with finned heat exchanger, gas-liquid separator, refrigerating evaporator be communicated with, the first described three-way diverter valve respectively with throttle mechanism, heat recovering heat exchanger, second three-way diverter valve be communicated with, the second described three-way diverter valve also with refrigerating evaporator, finned heat exchanger is communicated with, the first described check valve allows from refrigerating evaporator to reservoir unilaterally connected, the second described check valve allows from finned heat exchanger to reservoir unilaterally connected, the 3rd described check valve allows from heat recovering heat exchanger to reservoir unilaterally connected, by pipeline connection order conversions, following six kinds of active operation mode can be completed: refrigeration mode, heating mode, hot-water mode, hot water+cold water pattern, hot water defrosting's pattern, heating and defrosting pattern.In this programme, refrigerating evaporator is provided with air-conditioning water inlet, air-conditioner water outlet mouth, and heat recovering heat exchanger is provided with hot water water inlet, hot water outlet.
As preferably, described refrigeration mode is: high-temperature high-pressure refrigerant from compressor through the first four-way change-over valve, second four-way change-over valve arrives finned heat exchanger, high-temperature high-pressure refrigerant environment heat release towards periphery in finned heat exchanger, and be condensed into medium temperature and medium pressure refrigerant liquid, medium temperature and medium pressure refrigerant liquid is through the second check valve, after the further mistake of reservoir arrival economizer is cold, low-temperature low-pressure refrigerant liquid is become by throttle mechanism step-down, low-temperature low-pressure refrigerant liquid is by the first three-way diverter valve, second three-way diverter valve arrives refrigerating evaporator, in refrigerating evaporator, cold water is produced in low-temperature low-pressure refrigerant liquid and refrigerating medium heat exchange, low-temperature low-pressure refrigerant liquid is evaporated to low temperature low pressure gas, low temperature low pressure gas arrives after gas-liquid separator gas-liquid separation through the second four-way change-over valve again, enter compressor compresses.
As preferably, described heating mode is: high-temperature high-pressure refrigerant from compressor through the first four-way change-over valve, second four-way change-over valve arrives refrigerating evaporator, in refrigerating evaporator, high-temperature high-pressure refrigerant is to refrigerating medium heat release hot water preparing, and be condensed into medium temperature and medium pressure refrigerant liquid, medium temperature and medium pressure refrigerant liquid is through the first check valve, after the further mistake of reservoir arrival economizer is cold, low-temperature low-pressure refrigerant liquid is become by throttle mechanism step-down, low-temperature low-pressure refrigerant liquid is by the first three-way diverter valve, second three-way diverter valve arrives finned heat exchanger, low-temperature low-pressure refrigerant liquid and surrounding environment heat exchange in finned heat exchanger, low-temperature low-pressure refrigerant liquid is evaporated to low temperature low pressure gas, low temperature low pressure gas arrives after gas-liquid separator gas-liquid separation through the second four-way change-over valve again, enter compressor compresses.
As preferably, described hot-water mode is: high-temperature high-pressure refrigerant arrives heat recovering heat exchanger from compressor through the first four-way change-over valve, in heat recovering heat exchanger, high-temperature high-pressure refrigerant is to refrigerating medium heat release hot water preparing, and be condensed into medium temperature and medium pressure refrigerant liquid, medium temperature and medium pressure refrigerant liquid is through the 3rd check valve, after the further mistake of reservoir arrival economizer is cold, low-temperature low-pressure refrigerant liquid is become by throttle mechanism step-down, low-temperature low-pressure refrigerant liquid is by the first three-way diverter valve, second three-way diverter valve arrives finned heat exchanger, low-temperature low-pressure refrigerant liquid and surrounding environment heat exchange in finned heat exchanger, low-temperature low-pressure refrigerant liquid is evaporated to low temperature low pressure gas, low temperature low pressure gas arrives after gas-liquid separator gas-liquid separation through the second four-way change-over valve again, enter compressor compresses.
As preferably, described hot water+cold water pattern is: high-temperature high-pressure refrigerant arrives heat recovering heat exchanger from compressor through the first four-way change-over valve, in heat recovering heat exchanger, high-temperature high-pressure refrigerant is to refrigerating medium heat release hot water preparing, and be condensed into medium temperature and medium pressure refrigerant liquid, medium temperature and medium pressure refrigerant liquid is through the 3rd check valve, after the further mistake of reservoir arrival economizer is cold, low-temperature low-pressure refrigerant liquid is become by throttle mechanism step-down, low-temperature low-pressure refrigerant liquid arrives refrigerating evaporator, in refrigerating evaporator, cold water is produced in low-temperature low-pressure refrigerant liquid and refrigerating medium heat exchange, low-temperature low-pressure refrigerant liquid is evaporated to low temperature low pressure gas, low temperature low pressure gas arrives after gas-liquid separator gas-liquid separation through the second four-way change-over valve again, enter compressor compresses.
As preferably, described hot water defrosting's pattern is: high-temperature high-pressure refrigerant from compressor through the first four-way change-over valve, second four-way change-over valve arrives finned heat exchanger, high-temperature high-pressure refrigerant environment heat release towards periphery defrosting in finned heat exchanger, and be condensed into medium temperature and medium pressure refrigerant liquid, medium temperature and medium pressure refrigerant liquid is through the second check valve, after the further mistake of reservoir arrival economizer is cold, low-temperature low-pressure refrigerant liquid is become by throttle mechanism step-down, low-temperature low-pressure refrigerant liquid arrives heat recovering heat exchanger, low-temperature low-pressure refrigerant liquid and refrigerating medium heat exchange in heat recovering heat exchanger, low-temperature low-pressure refrigerant liquid is evaporated to low temperature low pressure gas, low temperature low pressure gas arrives after gas-liquid separator gas-liquid separation through the first four-way change-over valve again, enter compressor compresses.
As preferably, described heating and defrosting pattern is: high-temperature high-pressure refrigerant from compressor through the first four-way change-over valve, second four-way change-over valve arrives finned heat exchanger, high-temperature high-pressure refrigerant environment heat release towards periphery defrosting in finned heat exchanger, and be condensed into medium temperature and medium pressure refrigerant liquid, medium temperature and medium pressure refrigerant liquid is through the second check valve, after the further mistake of reservoir arrival economizer is cold, low-temperature low-pressure refrigerant liquid is become by throttle mechanism step-down, low-temperature low-pressure refrigerant liquid is by the first three-way diverter valve, second three-way diverter valve arrives refrigerating evaporator, in refrigerating evaporator, cold water is produced in low-temperature low-pressure refrigerant liquid and refrigerating medium heat exchange, low-temperature low-pressure refrigerant liquid is evaporated to low temperature low pressure gas, low temperature low pressure gas arrives after gas-liquid separator gas-liquid separation through the second four-way change-over valve again, enter compressor compresses.
Therefore, the present invention has following beneficial effect: (1) improves the efficiency of central air conditioning equipment, to which increasing surcharge; (2) repeat to recycle to used heat, eliminate the consumption of various energy during independent hot water preparing, decrease the pollution to environment.
Accompanying drawing explanation
Fig. 1 is a kind of schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in Figure 1, total heat recovery formula multifunctional cold and hot water unit, includes the compressor of pipeline connection, finned heat exchanger, reservoir, economizer, throttle mechanism, refrigerating evaporator, gas-liquid separator, heat recovering heat exchanger, pipeline is provided with the first four-way change-over valve, second four-way change-over valve, first three-way diverter valve, second three-way diverter valve, first check valve, second check valve, 3rd check valve, the first four-way change-over valve respectively with compressor, second four-way change-over valve, heat recovering heat exchanger, gas-liquid separator be communicated with, the second four-way change-over valve also with finned heat exchanger, gas-liquid separator, refrigerating evaporator be communicated with, the first three-way diverter valve respectively with throttle mechanism, heat recovering heat exchanger, second three-way diverter valve be communicated with, the second three-way diverter valve also with refrigerating evaporator, finned heat exchanger is communicated with, first check valve allows from refrigerating evaporator to reservoir unilaterally connected, second check valve allows from finned heat exchanger to reservoir unilaterally connected, 3rd check valve allows from heat recovering heat exchanger to reservoir unilaterally connected, by pipeline connection order conversions, following six kinds of active operation mode can be completed: refrigeration mode, heating mode, hot-water mode, hot water+cold water pattern, hot water defrosting's pattern, heating and defrosting pattern, wherein, refrigerating evaporator is provided with air-conditioning water inlet, air-conditioner water outlet mouth, and heat recovering heat exchanger is provided with hot water water inlet, hot water outlet.
Specific implementation process is, the reversal valve break-make table see under various different working modes:
The refrigeration mode course of work is: high-temperature high-pressure refrigerant from compressor through the first four-way change-over valve, second four-way change-over valve arrives finned heat exchanger, high-temperature high-pressure refrigerant environment heat release towards periphery in finned heat exchanger, and be condensed into medium temperature and medium pressure refrigerant liquid, medium temperature and medium pressure refrigerant liquid is through the second check valve, after the further mistake of reservoir arrival economizer is cold, low-temperature low-pressure refrigerant liquid is become by throttle mechanism step-down, low-temperature low-pressure refrigerant liquid is by the first three-way diverter valve, second three-way diverter valve arrives refrigerating evaporator, in refrigerating evaporator, cold water is produced in low-temperature low-pressure refrigerant liquid and refrigerating medium heat exchange, low-temperature low-pressure refrigerant liquid is evaporated to low temperature low pressure gas, low temperature low pressure gas arrives after gas-liquid separator gas-liquid separation through the second four-way change-over valve again, enter compressor compresses,
The heating mode course of work is: high-temperature high-pressure refrigerant from compressor through the first four-way change-over valve, second four-way change-over valve arrives refrigerating evaporator, in refrigerating evaporator, high-temperature high-pressure refrigerant is to refrigerating medium heat release hot water preparing, and be condensed into medium temperature and medium pressure refrigerant liquid, medium temperature and medium pressure refrigerant liquid is through the first check valve, after the further mistake of reservoir arrival economizer is cold, low-temperature low-pressure refrigerant liquid is become by throttle mechanism step-down, low-temperature low-pressure refrigerant liquid is by the first three-way diverter valve, second three-way diverter valve arrives finned heat exchanger, low-temperature low-pressure refrigerant liquid and surrounding environment heat exchange in finned heat exchanger, low-temperature low-pressure refrigerant liquid is evaporated to low temperature low pressure gas, low temperature low pressure gas arrives after gas-liquid separator gas-liquid separation through the second four-way change-over valve again, enter compressor compresses,
Hot-water mode's course of work is: high-temperature high-pressure refrigerant arrives heat recovering heat exchanger from compressor through the first four-way change-over valve, in heat recovering heat exchanger, high-temperature high-pressure refrigerant is to refrigerating medium heat release hot water preparing, and be condensed into medium temperature and medium pressure refrigerant liquid, medium temperature and medium pressure refrigerant liquid is through the 3rd check valve, after the further mistake of reservoir arrival economizer is cold, low-temperature low-pressure refrigerant liquid is become by throttle mechanism step-down, low-temperature low-pressure refrigerant liquid is by the first three-way diverter valve, second three-way diverter valve arrives finned heat exchanger, low-temperature low-pressure refrigerant liquid and surrounding environment heat exchange in finned heat exchanger, low-temperature low-pressure refrigerant liquid is evaporated to low temperature low pressure gas, low temperature low pressure gas arrives after gas-liquid separator gas-liquid separation through the second four-way change-over valve again, enter compressor compresses,
Hot water+cold water work pattern process is: high-temperature high-pressure refrigerant arrives heat recovering heat exchanger from compressor through the first four-way change-over valve, in heat recovering heat exchanger, high-temperature high-pressure refrigerant is to refrigerating medium heat release hot water preparing, and be condensed into medium temperature and medium pressure refrigerant liquid, medium temperature and medium pressure refrigerant liquid is through the 3rd check valve, after the further mistake of reservoir arrival economizer is cold, low-temperature low-pressure refrigerant liquid is become by throttle mechanism step-down, low-temperature low-pressure refrigerant liquid arrives refrigerating evaporator, in refrigerating evaporator, cold water is produced in low-temperature low-pressure refrigerant liquid and refrigerating medium heat exchange, low-temperature low-pressure refrigerant liquid is evaporated to low temperature low pressure gas, low temperature low pressure gas arrives after gas-liquid separator gas-liquid separation through the second four-way change-over valve again, enter compressor compresses,
Hot water defrosting's work pattern process is: high-temperature high-pressure refrigerant from compressor through the first four-way change-over valve, second four-way change-over valve arrives finned heat exchanger, high-temperature high-pressure refrigerant environment heat release towards periphery defrosting in finned heat exchanger, and be condensed into medium temperature and medium pressure refrigerant liquid, medium temperature and medium pressure refrigerant liquid is through the second check valve, after the further mistake of reservoir arrival economizer is cold, low-temperature low-pressure refrigerant liquid is become by throttle mechanism step-down, low-temperature low-pressure refrigerant liquid arrives heat recovering heat exchanger, low-temperature low-pressure refrigerant liquid and refrigerating medium heat exchange in heat recovering heat exchanger, low-temperature low-pressure refrigerant liquid is evaporated to low temperature low pressure gas, low temperature low pressure gas arrives after gas-liquid separator gas-liquid separation through the first four-way change-over valve again, enter compressor compresses,
Heating and defrosting work pattern process is: high-temperature high-pressure refrigerant from compressor through the first four-way change-over valve, second four-way change-over valve arrives finned heat exchanger, high-temperature high-pressure refrigerant environment heat release towards periphery defrosting in finned heat exchanger, and be condensed into medium temperature and medium pressure refrigerant liquid, medium temperature and medium pressure refrigerant liquid is through the second check valve, after the further mistake of reservoir arrival economizer is cold, low-temperature low-pressure refrigerant liquid is become by throttle mechanism step-down, low-temperature low-pressure refrigerant liquid is by the first three-way diverter valve, second three-way diverter valve arrives refrigerating evaporator, in refrigerating evaporator, cold water is produced in low-temperature low-pressure refrigerant liquid and refrigerating medium heat exchange, low-temperature low-pressure refrigerant liquid is evaporated to low temperature low pressure gas, low temperature low pressure gas arrives after gas-liquid separator gas-liquid separation through the second four-way change-over valve again, enter compressor compresses.

Claims (7)

1. a total heat recovery formula multifunctional cold and hot water unit, is characterized in that, includes the compressor of pipeline connection, finned heat exchanger, reservoir, economizer, throttle mechanism, refrigerating evaporator, gas-liquid separator, heat recovering heat exchanger, described pipeline is provided with the first four-way change-over valve, second four-way change-over valve, first three-way diverter valve, second three-way diverter valve, first check valve, second check valve, 3rd check valve, the first described four-way change-over valve respectively with compressor, second four-way change-over valve, heat recovering heat exchanger, gas-liquid separator be communicated with, the second described four-way change-over valve also with finned heat exchanger, gas-liquid separator, refrigerating evaporator be communicated with, the first described three-way diverter valve respectively with throttle mechanism, heat recovering heat exchanger, second three-way diverter valve be communicated with, the second described three-way diverter valve also with refrigerating evaporator, finned heat exchanger is communicated with, the first described check valve allows from refrigerating evaporator to reservoir unilaterally connected, the second described check valve allows from finned heat exchanger to reservoir unilaterally connected, the 3rd described check valve allows from heat recovering heat exchanger to reservoir unilaterally connected, by pipeline connection order conversions, following six kinds of active operation mode can be completed: refrigeration mode, heating mode, hot-water mode, hot water+cold water pattern, hot water defrosting's pattern, heating and defrosting pattern.
2. total heat recovery formula multifunctional cold and hot water unit according to claim 1, it is characterized in that, described refrigeration mode is: high-temperature high-pressure refrigerant from compressor through the first four-way change-over valve, second four-way change-over valve arrives finned heat exchanger, high-temperature high-pressure refrigerant environment heat release towards periphery in finned heat exchanger, and be condensed into medium temperature and medium pressure refrigerant liquid, medium temperature and medium pressure refrigerant liquid is through the second check valve, after the further mistake of reservoir arrival economizer is cold, low-temperature low-pressure refrigerant liquid is become by throttle mechanism step-down, low-temperature low-pressure refrigerant liquid is by the first three-way diverter valve, second three-way diverter valve arrives refrigerating evaporator, in refrigerating evaporator, cold water is produced in low-temperature low-pressure refrigerant liquid and refrigerating medium heat exchange, low-temperature low-pressure refrigerant liquid is evaporated to low temperature low pressure gas, low temperature low pressure gas arrives after gas-liquid separator gas-liquid separation through the second four-way change-over valve again, enter compressor compresses.
3. total heat recovery formula multifunctional cold and hot water unit according to claim 1, it is characterized in that, described heating mode is: high-temperature high-pressure refrigerant from compressor through the first four-way change-over valve, second four-way change-over valve arrives refrigerating evaporator, in refrigerating evaporator, high-temperature high-pressure refrigerant is to refrigerating medium heat release hot water preparing, and be condensed into medium temperature and medium pressure refrigerant liquid, medium temperature and medium pressure refrigerant liquid is through the first check valve, after the further mistake of reservoir arrival economizer is cold, low-temperature low-pressure refrigerant liquid is become by throttle mechanism step-down, low-temperature low-pressure refrigerant liquid is by the first three-way diverter valve, second three-way diverter valve arrives finned heat exchanger, low-temperature low-pressure refrigerant liquid and surrounding environment heat exchange in finned heat exchanger, low-temperature low-pressure refrigerant liquid is evaporated to low temperature low pressure gas, low temperature low pressure gas arrives after gas-liquid separator gas-liquid separation through the second four-way change-over valve again, enter compressor compresses.
4. total heat recovery formula multifunctional cold and hot water unit according to claim 1, it is characterized in that, described hot-water mode is: high-temperature high-pressure refrigerant arrives heat recovering heat exchanger from compressor through the first four-way change-over valve, in heat recovering heat exchanger, high-temperature high-pressure refrigerant is to refrigerating medium heat release hot water preparing, and be condensed into medium temperature and medium pressure refrigerant liquid, medium temperature and medium pressure refrigerant liquid is through the 3rd check valve, after the further mistake of reservoir arrival economizer is cold, low-temperature low-pressure refrigerant liquid is become by throttle mechanism step-down, low-temperature low-pressure refrigerant liquid is by the first three-way diverter valve, second three-way diverter valve arrives finned heat exchanger, low-temperature low-pressure refrigerant liquid and surrounding environment heat exchange in finned heat exchanger, low-temperature low-pressure refrigerant liquid is evaporated to low temperature low pressure gas, low temperature low pressure gas arrives after gas-liquid separator gas-liquid separation through the second four-way change-over valve again, enter compressor compresses.
5. total heat recovery formula multifunctional cold and hot water unit according to claim 1, it is characterized in that, described hot water+cold water pattern is: high-temperature high-pressure refrigerant arrives heat recovering heat exchanger from compressor through the first four-way change-over valve, in heat recovering heat exchanger, high-temperature high-pressure refrigerant is to refrigerating medium heat release hot water preparing, and be condensed into medium temperature and medium pressure refrigerant liquid, medium temperature and medium pressure refrigerant liquid is through the 3rd check valve, after the further mistake of reservoir arrival economizer is cold, low-temperature low-pressure refrigerant liquid is become by throttle mechanism step-down, low-temperature low-pressure refrigerant liquid arrives refrigerating evaporator, in refrigerating evaporator, cold water is produced in low-temperature low-pressure refrigerant liquid and refrigerating medium heat exchange, low-temperature low-pressure refrigerant liquid is evaporated to low temperature low pressure gas, low temperature low pressure gas arrives after gas-liquid separator gas-liquid separation through the second four-way change-over valve again, enter compressor compresses.
6. total heat recovery formula multifunctional cold and hot water unit according to claim 1, it is characterized in that, described hot water defrosting's pattern is: high-temperature high-pressure refrigerant from compressor through the first four-way change-over valve, second four-way change-over valve arrives finned heat exchanger, high-temperature high-pressure refrigerant environment heat release towards periphery defrosting in finned heat exchanger, and be condensed into medium temperature and medium pressure refrigerant liquid, medium temperature and medium pressure refrigerant liquid is through the second check valve, after the further mistake of reservoir arrival economizer is cold, low-temperature low-pressure refrigerant liquid is become by throttle mechanism step-down, low-temperature low-pressure refrigerant liquid arrives heat recovering heat exchanger, low-temperature low-pressure refrigerant liquid and refrigerating medium heat exchange in heat recovering heat exchanger, low-temperature low-pressure refrigerant liquid is evaporated to low temperature low pressure gas, low temperature low pressure gas arrives after gas-liquid separator gas-liquid separation through the first four-way change-over valve again, enter compressor compresses.
7. total heat recovery formula multifunctional cold and hot water unit according to claim 1, it is characterized in that, described heating and defrosting pattern is: high-temperature high-pressure refrigerant from compressor through the first four-way change-over valve, second four-way change-over valve arrives finned heat exchanger, high-temperature high-pressure refrigerant environment heat release towards periphery defrosting in finned heat exchanger, and be condensed into medium temperature and medium pressure refrigerant liquid, medium temperature and medium pressure refrigerant liquid is through the second check valve, after the further mistake of reservoir arrival economizer is cold, low-temperature low-pressure refrigerant liquid is become by throttle mechanism step-down, low-temperature low-pressure refrigerant liquid is by the first three-way diverter valve, second three-way diverter valve arrives refrigerating evaporator, in refrigerating evaporator, cold water is produced in low-temperature low-pressure refrigerant liquid and refrigerating medium heat exchange, low-temperature low-pressure refrigerant liquid is evaporated to low temperature low pressure gas, low temperature low pressure gas arrives after gas-liquid separator gas-liquid separation through the second four-way change-over valve again, enter compressor compresses.
CN201410679466.9A 2014-11-21 2014-11-21 Total heat recovery formula multifunctional cold and hot water unit Active CN104359177B (en)

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CN107401786A (en) * 2017-05-23 2017-11-28 诸暨市菲曼特环保设备有限公司 Evaporating type condensing temperature control equipment and its Defrost method
CN107883552A (en) * 2017-12-12 2018-04-06 珠海格力电器股份有限公司 Five-way valve, air conditioning unit and control method
CN108534386A (en) * 2018-05-18 2018-09-14 南京佳力图机房环境技术股份有限公司 A kind of cold and hot multifunctional integrated Air-Cooled Heat Pump Unit of four-pipe system
WO2021042654A1 (en) * 2019-09-05 2021-03-11 青岛海尔空调电子有限公司 Total heat recovery defrosting control method and control device, and air conditioning apparatus

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Cited By (5)

* Cited by examiner, † Cited by third party
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CN107401786A (en) * 2017-05-23 2017-11-28 诸暨市菲曼特环保设备有限公司 Evaporating type condensing temperature control equipment and its Defrost method
CN107401786B (en) * 2017-05-23 2024-01-23 诸暨市菲曼特环保设备有限公司 Evaporation type condensation temperature regulating equipment and defrosting method thereof
CN107883552A (en) * 2017-12-12 2018-04-06 珠海格力电器股份有限公司 Five-way valve, air conditioning unit and control method
CN108534386A (en) * 2018-05-18 2018-09-14 南京佳力图机房环境技术股份有限公司 A kind of cold and hot multifunctional integrated Air-Cooled Heat Pump Unit of four-pipe system
WO2021042654A1 (en) * 2019-09-05 2021-03-11 青岛海尔空调电子有限公司 Total heat recovery defrosting control method and control device, and air conditioning apparatus

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