CN115264554A - Ground heating hot water unit of natural fluorine ground water type central air conditioner and control method thereof - Google Patents
Ground heating hot water unit of natural fluorine ground water type central air conditioner and control method thereof Download PDFInfo
- Publication number
- CN115264554A CN115264554A CN202210822209.0A CN202210822209A CN115264554A CN 115264554 A CN115264554 A CN 115264554A CN 202210822209 A CN202210822209 A CN 202210822209A CN 115264554 A CN115264554 A CN 115264554A
- Authority
- CN
- China
- Prior art keywords
- water
- hot water
- central air
- temperature
- conditioning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 228
- 238000010438 heat treatment Methods 0.000 title claims abstract description 88
- 229910052731 fluorine Inorganic materials 0.000 title claims abstract description 24
- 239000011737 fluorine Substances 0.000 title claims abstract description 24
- 239000003673 groundwater Substances 0.000 title claims abstract description 24
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 title claims description 23
- 238000000034 method Methods 0.000 title claims description 13
- 239000003507 refrigerant Substances 0.000 claims abstract description 115
- 238000004378 air conditioning Methods 0.000 claims abstract description 100
- 239000008236 heating water Substances 0.000 claims abstract description 57
- 239000008399 tap water Substances 0.000 claims description 42
- 235000020679 tap water Nutrition 0.000 claims description 41
- 230000001105 regulatory effect Effects 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 12
- 238000005057 refrigeration Methods 0.000 claims description 12
- 238000007710 freezing Methods 0.000 claims description 7
- 238000010257 thawing Methods 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000005338 heat storage Methods 0.000 description 2
- 244000062793 Sorghum vulgare Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 235000019713 millet Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/02—Hot-water central heating systems with forced circulation, e.g. by pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/02—Arrangement of mountings or supports for radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
- F24D3/082—Hot water storage tanks specially adapted therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/18—Hot-water central heating systems using heat pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-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
- F24F5/0007—Air-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
- F24F5/001—Compression cycle type
-
- 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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- 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
- F25B41/24—Arrangement of shut-off valves for disconnecting a part of the refrigerant cycle, e.g. an outdoor part
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Water Supply & Treatment (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The invention discloses a natural fluorine and ground water type central air-conditioning ground heating hot water unit which comprises a domestic hot water tank, a ground heating water dividing and collecting device, a heat exchanger, a compressor, an evaporator, a throttling device, a four-way valve and a multi-connected central air-conditioning unit, wherein the multi-connected central air-conditioning unit comprises a first central air-conditioning multi-connected main path, a second central air-conditioning multi-connected main path and an indoor fan coil; a first valve port of the four-way valve is connected with a refrigerant outlet of the heat exchanger, a second valve port of the four-way valve is connected with one end of the evaporator, a third valve port of the four-way valve is connected with a refrigerant inlet of the compressor, and a fourth valve port of the four-way valve is connected with a first central air-conditioning multi-connected main path; the refrigerant inlet of the heat exchanger is connected with the refrigerant outlet of the compressor; the other end of the evaporator is connected with one end of the throttling device; the other end of the throttling device is connected with a second central air-conditioning multi-connected main road; the first central air-conditioning multi-connected main road and the second central air-conditioning multi-connected main road are connected through a balance valve; the domestic hot water tank is connected with the heat exchanger to form a hot water loop; the floor heating water collecting and distributing device is connected with the heat exchanger to form a floor heating water loop.
Description
Technical Field
The invention relates to the technical field of heating and refrigerating units, in particular to a natural fluorine ground water type central air-conditioning ground heating hot water unit and a control method thereof.
Background
The patent specification with the publication number of CN 211177489U discloses an air source heat pump air-conditioning and floor heating hot water unit, which comprises a hot water heat exchanger, a compressor, an evaporator, a throttling device, a fan coil unit, a floor heating heat exchanger, a four-way valve, a first three-way valve and a second three-way valve; the fan coil unit comprises an air conditioner fan and an air conditioner heat exchanger; the four-way valve comprises a first valve port, a second valve port, a third valve port, a fourth valve port and a fourth valve port, wherein the first valve port is connected with a refrigerant outlet of the hot water heat exchanger, the second valve port is connected with one end of the evaporator, the third valve port is connected with a refrigerant inlet of the compressor, and the fourth valve port is connected with the first three-way valve; a refrigerant inlet of the hot water heat exchanger is connected with a refrigerant outlet of the compressor; the other end of the evaporator is connected with one end of the throttling device; the other end of the throttling device is connected with a second three-way valve; one end of the air-conditioning heat exchanger is connected with the first three-way valve, and the other end of the air-conditioning heat exchanger is connected with the second three-way valve; the refrigerant inlet of the ground heating heat exchanger is connected with the first three-way valve, and the refrigerant outlet of the ground heating heat exchanger is connected with the second three-way valve. The technology of the patent can realize multiple working modes of heating water and supplying air for heating in winter, heating water and floor heating in winter, heating water and supplying air for refrigeration in summer and the like.
Above-mentioned patent technique warms up in the course of the work and the air conditioner can not use simultaneously, and can not be fine solution winter evaporimeter problem of defrosting. In addition, the air conditioning box that above-mentioned patent technique used big concentrated setting, and what adopted is the mode of air supply heat transfer refrigeration, realizes indoor air supply and temperature regulation, and its hot water heat exchanger does not relate to the regulation of refrigerant volume, and hot water temperature regulation sensitivity, precision and adaptability under the different environment need improve. When ground heating is not used, residual water in a ground heating pipeline possibly has the problem of frost crack of the pipeline, and the patent technology does not provide a solution for the problem.
Along with the rapid large-area application of an air source heat pump in the field of building air conditioners, the air source heat pump is not limited to a heat pump water heater any more, currently, if a heat pump hot water/multi-connected central air conditioner/floor heating is integrated into one device, an air conditioning system is directly arranged in a multi-connected mode for indoor use, a floor heating heat exchanger is integrated into a machine set for winter heating, a living hot water heat exchanger is integrated into the machine set for daily living hot water, the installation position of a user is greatly reduced for multiple purposes, the management and the maintenance are convenient, and meanwhile, the energy consumption of the device is reasonably adjusted by a control system through a frequency conversion technology according to external actual requirements, so that the use cost of the user can be greatly reduced.
At present, a brand new heat pump product which can realize the functions of air conditioning refrigeration (heating), floor heating and domestic hot water, realize the combined use of multiple functions, is driven by electric energy and takes air as a main cold and heat source is needed in the market.
If the water heater can realize single hot water production, air-conditioning refrigeration/heating, floor heating, refrigeration and heating simultaneously according to the requirements of different occasions in different seasons, the application range is extremely wide. In fact, when the system is used at home, if the frequency conversion control technology of the unit and the control of the tail end (an air port, a floor heating water collector, a radiator and the like) are well combined, the whole system can run stably, energy-saving and high-quality, and a better application market can be provided.
Disclosure of Invention
The invention provides a natural fluorine and ground water type central air-conditioning ground heating hot water unit, which integrates heat exchange of domestic water and ground heating water in a heat exchanger, a ground heater and an air conditioner can be independently or simultaneously started according to needs, a multi-connected central air-conditioning unit is adopted, and heat exchange is carried out indoors through a fan coil.
The specific technical scheme is as follows:
a natural fluorine ground water type central air conditioning ground heating hot water unit comprises a domestic hot water tank, a ground heating water collecting and distributing device, a heat exchanger, a compressor, an evaporator, a throttling device, a multi-connected central air conditioning unit and a four-way valve; the multi-connected central air-conditioning unit comprises a first central air-conditioning multi-connected main circuit, a second central air-conditioning multi-connected main circuit and a plurality of groups of indoor fan coils which can be respectively and independently controlled and are connected with the first central air-conditioning multi-connected main circuit and the second central air-conditioning multi-connected main circuit through air-conditioning tail end branches;
the four-way valve comprises a first valve port, a second valve port, a third valve port, a fourth valve port and a fourth valve port, wherein the first valve port is connected with a refrigerant outlet of the heat exchanger, the second valve port is connected with one end of the evaporator, the third valve port is connected with a refrigerant inlet of the compressor, and the fourth valve port is connected with the first central air-conditioning multi-connected main path;
a refrigerant inlet of the heat exchanger is connected with a refrigerant outlet of the compressor;
the other end of the evaporator is connected with one end of the throttling device;
the other end of the throttling device is connected with the second central air-conditioning multi-connected main road;
the first central air-conditioning multi-connected main circuit and the second central air-conditioning multi-connected main circuit are also connected through balance valves, and the balance valves can be adjusted according to the opening number of indoor air conditioners;
the domestic hot water tank is connected with a tap water inlet and a tap water outlet of the heat exchanger to form a hot water loop;
the floor heating water collecting and distributing device is connected with a floor heating water inlet and a floor heating water outlet of the heat exchanger to form a floor heating water loop.
The indoor fan coils can be arranged indoors as required, two ends of each indoor fan coil are connected with the branch circuit at the tail end of the air conditioner, the indoor fan coils can be connected in parallel and are connected into the first central air conditioner multi-connected main circuit and the second central air conditioner multi-connected main circuit in parallel with the balance valve, and the balance valve and each indoor air conditioner are respectively and independently controlled.
The balance valve is specially designed for the multi-connected central air conditioning unit capable of being independently controlled respectively, the balance valve can be adjusted according to the number of the indoor air conditioners which are started, when the air conditioners are not started, the refrigerant is completely bypassed, the refrigerant passes through the air conditioner terminal branch and the indoor fan coil, the first central air conditioner multi-connected main path is directly communicated with the second central air conditioner multi-connected main path through the balance valve, when the number of the indoor air conditioners which are started is less, the refrigerant needed by the air conditioners is less, the opening degree of the balance valve is adjusted, and part of the refrigerant passes through the balance valve, so that the problems of low refrigerant flow, low compressor pressure or overheating when the number of the indoor terminal air conditioners is less are avoided.
In a preferred embodiment, in the natural fluorine and ground water type central air-conditioning ground heating hot water unit, a refrigerant inlet of the heat exchanger is connected with a refrigerant outlet of the compressor through a first three-way regulating valve;
a refrigerant outlet of the heat exchanger is connected with the first valve port through a second three-way regulating valve;
the first three-way regulating valve and the second three-way regulating valve are connected through a bypass pipe.
The design of the first three-way regulating valve, the second three-way regulating valve and the bypass pipe can realize the adaptive regulation of the quantity of the refrigerant entering the heat exchanger, and reduce the heat waste of the high-temperature and high-pressure refrigerant.
In a preferable example, the natural fluorine ground water type central air conditioning ground heating hot water unit is provided with an automatic anti-freezing water drainage device on the ground heating water loop. If the floor heating device is not used for a long time in winter, the automatic anti-freezing and water draining device can drain the floor heating water, so that the floor heating water is prevented from freezing and the water pipe is prevented from being frozen.
In a preferred embodiment, the natural fluorine ground water type central air-conditioning ground heating hot water unit further comprises an indoor controller which can respectively and independently control the multi-connected central air-conditioning unit and the ground heating, and the control is more convenient.
In a preferred embodiment, the air-liquid separator is arranged between the refrigerant inlet of the compressor and the third valve for separating air from liquid.
In a preferred embodiment, the liquid storage tank is arranged between the other end of the throttling device and the second multi-connected main central air-conditioning path, and is used for gas-liquid separation.
Preferably, a filter is arranged between the other end of the throttling device and the liquid storage tank and used for filtering.
In a preferred example, the domestic hot water tank is connected with a tap water inlet of the heat exchanger through a return water/tap water pipeline and is connected with a tap water outlet of the heat exchanger through a hot water outlet pipeline;
the top of the domestic hot water tank is provided with a water outlet for domestic hot water to flow out, and the bottom of the domestic hot water tank is provided with a water inlet connected with tap water;
the hot water outlet pipeline is provided with a hot water outlet three-way valve for domestic hot water outlet;
a running water inlet three-way valve for connecting running water is arranged on the return water/running water pipeline;
the hot water loop and the floor heating water loop form heat exchange inside the heat exchanger.
The water in the water tank can be converted into hot water of a desired temperature by means of a hot water circuit. Tap water is filled from the bottom of the domestic hot water tank and is discharged from the top of the domestic hot water tank. When the domestic hot water tank is filled with water, the outlet water pressure of the tank is the pressure of tap water flowing into the bottom.
When using the hot water in the water tank, the running water is through the hot water extrusion in self pressure with the water tank for the user to use, when the temperature is low to the settlement temperature in the water tank, utilize the hot water return circuit to heat the water in the water tank on the one hand, on the other hand opens running water and intakes three-way valve and hot water outlet three-way valve, partly running water is direct to be regarded as life hot water after the heat exchanger heating and goes out water, guarantee that user's hot water is incessant, improve hot water utilization ratio greatly, what the heat exchanger heating was all low temperature running water simultaneously, the big heat exchange efficiency of the difference in temperature is high, it is higher to synthesize the efficiency.
In addition, if the water tank is not used for a long time, when the whole temperature of the water tank is reduced to the set temperature, the temperature of the water body in the water tank can be increased and the hot water can be obtained in real time according to the method.
In actual operation, can use life hot water tank as the energy storage water tank, to the water tank heating to higher temperature (for example 65 ℃) during the valley electricity night, send the floor heating water in the heat exchanger heating floor heating water return circuit with the hot water in the life hot water tank through the hot water return circuit daytime, provide the heat for the floor heating system.
In a preferred embodiment, the domestic hot water tank is composed of a plurality of pressure-bearing water tanks connected in series. The pressure-bearing water tanks can be connected in series through pipelines and water guide pipes which go deep into the inner bottom of the pressure-bearing water tank.
According to the adaptability and the heat storage capacity of the project, the hot water outlet three-way valve can be connected with one or more pressure-bearing water tanks.
As a general inventive concept, the invention also provides a control method of the natural fluorine ground water type central air-conditioning ground heating hot water unit, which comprises the following working procedures:
a) Winter heating water, ground heating and air conditioning heating can be respectively and independently controlled, and do not influence each other: the first valve port and the fourth valve port of the four-way control valve are communicated, and the second valve port and the third valve port are communicated; the high-temperature and high-pressure refrigerant compressed by the compressor enters a heat exchanger, tap water and floor heating water flow out as hot water after heat exchange, the temperature of the high-temperature and high-pressure refrigerant is reduced after heat exchange with the tap water and the floor heating water, but the high-temperature and high-pressure refrigerant still is high-temperature high-pressure refrigerant, then the high-temperature and high-pressure refrigerant enters an indoor fan coil through a first central air-conditioning multi-connected main circuit and an air-conditioning terminal branch circuit to exchange heat with indoor air, indoor heating is performed, the refrigerant subjected to heat exchange and temperature reduction is reduced through a second central air-conditioning multi-connected main circuit and a throttling device, the temperature is rapidly reduced, then the low-temperature and low-pressure refrigerant enters an evaporator to exchange heat with the external atmosphere and is heated, enters the compressor to be further compressed into the high-temperature and high-pressure refrigerant, enters the next cycle, and the air subjected to heat exchange and temperature reduction through the evaporator is discharged through an outdoor fan;
b) Winter hot water production, floor heating and heating, air conditioner closing, evaporator defrosting: a first valve port of the four-way valve is communicated with a second valve port, and a third valve port of the four-way valve is communicated with a fourth valve port; the high-temperature and high-pressure refrigerant compressed by the compressor enters the heat exchanger, tap water and floor heating water flow out as hot water after heat exchange, the temperature of the high-temperature and high-pressure refrigerant is reduced after heat exchange with the tap water and the floor heating water, but the high-temperature and high-pressure refrigerant still has higher temperature, then the high-temperature and high-pressure refrigerant enters the evaporator, the evaporator is heated for defrosting, the pressure of the high-pressure refrigerant after heat exchange and temperature reduction is suddenly reduced after passing through the throttling device, the temperature is rapidly reduced, and then the low-temperature and low-pressure refrigerant enters the compressor through the second central air conditioner multi-connected main path, the balance valve and the first central air conditioner multi-connected main path to be compressed into the high-temperature and high-pressure refrigerant and enters the next cycle;
c) Heating water in summer and refrigerating an air conditioner: a first valve port of the four-way valve is communicated with a second valve port, and a third valve port of the four-way valve is communicated with a fourth valve port; the high-temperature high-pressure refrigerant compressed by the compressor enters the heat exchanger, tap water flows out after heat exchange to be hot water, the temperature of the high-temperature high-pressure refrigerant is reduced after heat exchange with the tap water, but the high-temperature high-pressure refrigerant is still high-temperature high-pressure refrigerant, then the high-temperature high-pressure refrigerant enters the evaporator to exchange heat with the outside atmosphere for cooling, air heated by heat exchange of the evaporator is discharged by the outdoor fan, the high-pressure refrigerant cooled by heat exchange of the evaporator is subjected to pressure shock drop along with rapid temperature reduction after passing through the throttling device, then the low-temperature low-pressure refrigerant passes through the second central air-conditioning multi-connected main circuit and the air-conditioning tail end branch circuit to reach the indoor fan coil pipe to exchange heat with indoor air, indoor refrigeration is carried out, and the low-pressure refrigerant heated by heat exchange enters the compressor through the first central air-conditioning multi-connected main circuit to be compressed into the high-temperature high-pressure refrigerant, and enters the next cycle.
The invention aims to realize the integration of the functions of refrigeration/heating, floor heating, hot water heating and the like of a multi-split central air conditioner, switches the modes of air conditioning (refrigeration/heating), floor heating and hot water through indoor controllers of a unit, detects the requirement of a user through each room controller, sends a signal to the unit, and starts a compressor to refrigerate/heat water. In addition, the invention can also realize defrosting without stopping the machine.
When a room needs to be refrigerated, a room controller is arranged to start a refrigeration function, an indoor fan coil of the room is started, a tail end electromagnetic valve corresponding to the fan coil is opened, a main control unit adjusts the four-way valve of the main control unit to automatically switch according to signals, and a floor heating passage is closed. The refrigerant passes through the indoor fan coil pipe in this room of central air conditioning multiplex main passage flow through, realizes refrigerating, reaches the cooling, adopts multiple central air conditioning, and the host computer refrigerant directly reaches the user side, and the effect is fast, and the big heat exchange efficiency of difference in temperature is high simultaneously, and the efficiency is high. The system is provided with a branch pipe to deal with a plurality of indoor fan coil access systems.
The heat exchanger of the main machine is arranged at the outlet of the compressor, so that the heat absorbed by the refrigeration cycle preferentially heats the domestic hot water, the domestic hot water is heated without consuming extra electric energy, the domestic hot water is used freely, meanwhile, the temperature sensor is arranged in the heat exchanger, the amount of high-temperature and high-pressure refrigerants entering the heat exchanger is accurately controlled by adjusting the opening degrees of the first three-way regulating valve and the second three-way regulating valve, the temperature in the heat exchanger is further accurately controlled, and the heat exchanger is prevented from scaling due to overhigh hot water.
When the heating operation in winter, the heat of heating domestic hot water will occupy the operating load of host computer, through the algorithm (adjustable) of control system with host computer heating domestic hot water with heating load rational distribution, adjust the aperture of first three-way control valve, second three-way control valve and rationally control bypass refrigerant volume, improve hot water heating rate when guaranteeing the peak water, reduce user's water and wait for, the low peak water can utilize the millet electricity heat accumulation, reduce user's working costs.
When a room needs to be warmed up, the room controller is arranged to start a floor heating function, the floor heating electromagnetic valve on the floor heating water distributor and collector corresponding to the room controller is opened, a floor heating circulating pump is started, the main control of the main machine adjusts the automatic switching of the four-way valve of the main machine according to signals, and a floor heating passage is opened. The refrigerant circularly heats the ground heating water system through the heat exchanger, and indoor ground heating is achieved.
The automatic anti-freezing and water draining device is arranged at the water outlet of the floor heating heat exchanger, and when the floor heating is not used in winter or a user does not start the host for a long time at home, the host starts the automatic anti-freezing and water draining device to open the residual water in the emptying system.
Drawings
FIG. 1 is a schematic structural diagram of a natural fluorine ground water type central air-conditioning ground heating hot water unit of an embodiment;
in the figure: 1-hot water outlet pipeline; 2-backwater/tap water line; 3-a heat exchanger; 4-a compressor; 5-a gas-liquid separator; 6-four-way valve; 7-an evaporator; 8-outdoor fan; 9-a throttling device; 10-a filter; 11-a liquid storage tank; 12-a balancing valve; 13-ground heating backwater; 14-floor heating water outlet; 15-a first three-way regulating valve; 16-a second three-way regulating valve; 17-a by-pass pipe; 18-a first central air-conditioning multi-connected main road; 19-a second central air-conditioning multi-connected main road; 20-indoor fan coil; 21-air conditioner terminal branch; 22-indoor controller; 23-automatic antifreezing and draining device; 24-floor heating water dividing and collecting device; 25-domestic hot water tank; 26-hot water outlet three-way valve; 27-tap water inlet three-way valve; a-a first valve port; b-a second valve port; c-a third valve port; d-fourth valve port.
Detailed Description
The invention is further described with reference to the following drawings and specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
As shown in fig. 1, the natural fluorine and ground water type central air-conditioning ground heating hot water unit of the present embodiment includes a domestic hot water tank 25, a ground heating water collecting and distributing unit 24, a heat exchanger 3, a compressor 4, an evaporator 7, a throttling device 9, a multi-connected central air-conditioning unit, and a four-way valve 6. The multi-connected central air-conditioning unit comprises a first central air-conditioning multi-connected main circuit 18, a second central air-conditioning multi-connected main circuit 19 and a plurality of groups of indoor fan coils 20 which are respectively and independently controlled and are connected with the first central air-conditioning multi-connected main circuit 18 and the second central air-conditioning multi-connected main circuit 19 through air-conditioning tail end branches 21. The natural fluorine ground water type central air conditioning ground heating hot water unit of the embodiment further comprises an indoor controller 22 which can respectively and independently control the multi-connected central air conditioning unit and the ground heating.
The four-way valve 6 comprises a first valve port, a second valve port, a third valve port and a fourth valve port, wherein the first valve port A is connected with a refrigerant outlet of the heat exchanger 3 through a second three-way regulating valve 16, the second valve port B is connected with one end of the evaporator 7, the third valve port C is connected with a refrigerant inlet of the compressor 4 through the gas-liquid separator 5, and the fourth valve port D is connected with the first central air-conditioning multi-connected main path 18.
The refrigerant inlet of the heat exchanger 3 is connected to the refrigerant outlet of the compressor 4 through a first three-way regulating valve 15.
The first three-way control valve 15 and the second three-way control valve 16 are connected by a bypass pipe 17.
The other end of the evaporator 7 is connected with a second central air-conditioning multi-connected main path 19 through a throttling device 9, a filter 10 and a liquid storage tank 11 in sequence.
The first central air-conditioning multi-connected main circuit 18 and the second central air-conditioning multi-connected main circuit 19 are also connected through a balance valve 12, and the balance valve 12 can be adjusted according to the opening number of the indoor air conditioners.
The domestic hot water tank 25 is connected with a tap water inlet and a tap water outlet of the heat exchanger 3 to form a hot water loop.
The floor heating water collecting and distributing device 24 is connected with a floor heating water inlet and a floor heating water outlet of the heat exchanger 3 to form a floor heating water loop.
And an automatic anti-freezing water drainage device 23 is arranged on the floor heating water loop.
The domestic hot water tank 25 is connected with a tap water inlet of the heat exchanger 3 through a return water/tap water pipeline 2 and is connected with a tap water outlet of the heat exchanger 3 through a hot water outlet pipeline 1.
The top of the domestic hot water tank 25 is provided with a water outlet for domestic hot water to flow out, and the bottom is provided with a water inlet connected with tap water.
The hot water outlet pipeline 1 is provided with a hot water outlet three-way valve 26 for domestic hot water outlet.
And a running water inlet three-way valve 27 for connecting running water is arranged on the return water/running water pipeline 2.
The hot water loop and the floor heating water loop form heat exchange inside the heat exchanger 3.
The domestic hot water tank 25 may be composed of a plurality of pressure-bearing water tanks connected in series. The pressure-bearing water tanks can be connected in series through pipelines and water guide pipes which go deep into the bottom in the pressure-bearing water tanks.
The control method of the natural fluorine ground water type central air-conditioning ground heating hot water unit comprises the following working procedures:
a) Winter heating water, ground heating and air conditioning heating can be respectively and independently controlled, and do not influence each other: the first valve port and the fourth valve port of the four-way control valve are communicated, and the second valve port and the third valve port are communicated; the high-temperature and high-pressure refrigerant compressed by the compressor enters the heat exchanger, tap water and floor heating water flow out as hot water after heat exchange, the temperature of the high-temperature and high-pressure refrigerant is reduced after heat exchange with the tap water and the floor heating water, but the high-temperature and high-pressure refrigerant still is high-temperature high-pressure refrigerant, the high-temperature and high-pressure refrigerant flows to the indoor fan coil through the first central air-conditioning multi-connected main circuit and the air-conditioning terminal branch circuit to exchange heat with indoor air, indoor heating is achieved, the refrigerant subjected to heat exchange and temperature reduction is reduced through the second central air-conditioning multi-connected main circuit and the throttling device, the temperature is rapidly reduced, then the low-temperature and low-pressure refrigerant enters the evaporator to exchange heat with the external atmosphere and is heated, enters the compressor to be further compressed into the high-temperature and high-pressure refrigerant, enters the next cycle, and the air subjected to heat exchange and temperature reduction through the evaporator is discharged through the outdoor fan.
b) Winter hot water production, floor heating and heating, air conditioner closing, evaporator defrosting: a first valve port of the four-way valve is communicated with a second valve port, and a third valve port of the four-way valve is communicated with a fourth valve port; the high-temperature and high-pressure refrigerant compressed by the compressor enters the heat exchanger, tap water and floor heating water flow out as hot water after heat exchange, the temperature of the high-temperature and high-pressure refrigerant is reduced after heat exchange with the tap water and the floor heating water, but the high-temperature and high-pressure refrigerant still has higher temperature, then the high-temperature and high-pressure refrigerant enters the evaporator to be defrosted, the pressure of the high-pressure refrigerant after heat exchange and temperature reduction suddenly drops after passing through the throttling device, the temperature is rapidly reduced, and then the low-temperature and low-pressure refrigerant enters the compressor to be compressed into the high-temperature and high-pressure refrigerant through the second central air conditioner multi-connected main path, the balance valve and the first central air conditioner multi-connected main path and enters the next cycle.
c) Heating water in summer and refrigerating an air conditioner: a first valve port of the four-way valve is communicated with a second valve port, and a third valve port of the four-way valve is communicated with a fourth valve port; the high-temperature high-pressure refrigerant compressed by the compressor enters the heat exchanger, tap water flows out to be hot water after heat exchange, the temperature of the high-temperature high-pressure refrigerant is reduced after the high-temperature high-pressure refrigerant exchanges heat with the tap water, but the high-temperature high-pressure refrigerant still has higher temperature, then the high-temperature high-pressure refrigerant enters the evaporator to exchange heat with the external atmosphere to reduce the temperature, air heated by the heat exchange of the evaporator is discharged by the outdoor fan, the pressure of the high-pressure refrigerant cooled by the heat exchange of the evaporator is suddenly reduced after passing through the throttling device, the temperature is rapidly reduced, then the low-temperature low-pressure refrigerant passes through the second central air conditioning multi-connected main circuit and the air conditioner tail end branch circuit to reach the indoor fan coil to exchange heat with indoor air, the indoor refrigeration is carried out, and the low-pressure refrigerant heated by the heat exchange enters the compressor to be compressed into the high-temperature high-pressure refrigerant through the first central air conditioning multi-connected main circuit to enter the next cycle.
d) The flexible use of domestic hot water:
the water in the domestic hot water tank can be converted into hot water at the required temperature through the hot water loop. Tap water is filled from the bottom of the domestic hot water tank and is discharged from the top of the domestic hot water tank. When the domestic hot water tank is filled with water, the outlet pressure of the domestic hot water tank is the pressure of tap water flowing into the bottom of the domestic hot water tank.
When using the hot water in the life hot water tank, the running water is pressed out the hot water in the life hot water tank through self pressure and is provided for the user to use, when the temperature of the water in the life hot water tank is low to the set temperature, utilize the hot water return circuit to heat the water in the life hot water tank on the one hand, on the other hand opens running water inlet three-way valve and hot water outlet three-way valve, partly running water is direct to be regarded as life hot water play water after the heat exchanger heating, guarantee that user's hot water is incessant, improve the hot water utilization ratio greatly, what the heat exchanger heated simultaneously all is low temperature running water, the big heat exchange efficiency of difference is high, it is higher to synthesize the efficiency.
In addition, if the domestic hot water tank is not used for a long time, when the whole temperature of the water tank is reduced to the set temperature, the temperature of the water body in the water tank can be increased and the hot water can be obtained in real time according to the method.
In actual operation, can use life hot water tank as the energy storage water tank, to the water tank heating to higher temperature (for example 65 ℃) during the valley electricity night, send the floor heating water in the heat exchanger heating floor heating water return circuit with the hot water in the life hot water tank through the hot water return circuit daytime, provide the heat for the floor heating system.
According to the adaptability and the heat storage capacity of the project, the hot water outlet three-way valve can be connected with one or more pressure-bearing water tanks.
Furthermore, it should be understood that various changes and modifications can be made by one skilled in the art after reading the above description of the present invention, and equivalents also fall within the scope of the invention as defined by the appended claims.
Claims (10)
1. A natural fluorine ground water type central air conditioning ground heating hot water unit is characterized by comprising a domestic hot water tank, a ground heating water collecting and distributing device, a heat exchanger, a compressor, an evaporator, a throttling device, a multi-connected central air conditioning unit and a four-way valve; the multi-connected central air-conditioning unit comprises a first central air-conditioning multi-connected main circuit, a second central air-conditioning multi-connected main circuit and a plurality of groups of indoor fan coils which can be respectively and independently controlled and are connected with the first central air-conditioning multi-connected main circuit and the second central air-conditioning multi-connected main circuit through air-conditioning tail end branches;
the four-way valve comprises a first valve port, a second valve port, a third valve port, a fourth valve port and a fourth valve port, wherein the first valve port is connected with a refrigerant outlet of the heat exchanger, the second valve port is connected with one end of the evaporator, the third valve port is connected with a refrigerant inlet of the compressor, and the fourth valve port is connected with the first central air-conditioning multi-connected main path;
a refrigerant inlet of the heat exchanger is connected with a refrigerant outlet of the compressor;
the other end of the evaporator is connected with one end of the throttling device;
the other end of the throttling device is connected with the second central air-conditioning multi-connected main road;
the first central air-conditioning multi-connected main circuit and the second central air-conditioning multi-connected main circuit are also connected through balance valves, and the balance valves can be adjusted according to the opening number of indoor air conditioners;
the domestic hot water tank is connected with a tap water inlet and a tap water outlet of the heat exchanger to form a hot water loop;
the floor heating water distributor and the floor heating water inlet and the floor heating water outlet of the heat exchanger are connected to form a floor heating water loop.
2. The natural fluorine ground water type central air-conditioning ground heating hot water unit as claimed in claim 1, wherein a refrigerant inlet of the heat exchanger is connected with a refrigerant outlet of the compressor through a first three-way regulating valve;
a refrigerant outlet of the heat exchanger is connected with the first valve port through a second three-way regulating valve;
the first three-way regulating valve and the second three-way regulating valve are connected through a bypass pipe.
3. The natural fluorine and ground water type central air-conditioning ground heating hot water unit as claimed in claim 1, wherein an automatic anti-freezing and water draining device is arranged on the ground heating water loop.
4. The natural fluorine ground water type central air-conditioning ground heating hot water unit as claimed in claim 1, further comprising an indoor controller for independently controlling the multi-connected central air-conditioning unit and the ground heating.
5. The natural fluorine ground water type central air-conditioning ground heating hot water unit as claimed in claim 1, wherein a gas-liquid separator is arranged between a refrigerant inlet of the compressor and the third valve port.
6. The natural fluorine ground water type central air-conditioning ground heating hot water unit as claimed in claim 1, wherein a liquid storage tank is arranged between the other end of the throttling device and the second central air-conditioning multi-connected main road.
7. The geothermal water heating unit of the natural fluorine ground water type central air conditioner as claimed in claim 6, wherein a filter is arranged between the other end of the throttling device and the liquid storage tank.
8. The natural fluorine ground water type central air-conditioning ground heating hot water unit as claimed in claim 1, wherein the domestic hot water tank is connected with a tap water inlet of the heat exchanger through a return water/tap water pipeline, and is connected with a tap water outlet of the heat exchanger through a hot water outlet pipeline;
the top of the domestic hot water tank is provided with a water outlet for domestic hot water to flow out, and the bottom of the domestic hot water tank is provided with a water inlet connected with tap water;
the hot water outlet pipeline is provided with a hot water outlet three-way valve for domestic hot water outlet;
a running water inlet three-way valve for connecting running water is arranged on the return water/running water pipeline;
the hot water loop and the floor heating water loop form heat exchange in the heat exchanger.
9. The natural fluorine ground water type central air-conditioning ground heating hot water unit as claimed in claim 1 or 8, wherein the domestic hot water tank is composed of a plurality of pressure-bearing water tanks connected in series.
10. The control method of the natural fluorine and ground water type central air-conditioning ground heating hot water unit as claimed in claim 1, characterized by comprising the following working procedures:
a) Winter heating water, ground heating and air conditioning heating can be independently controlled respectively, and are not affected mutually: a first valve port and a fourth valve port of the control four-way valve are communicated, and a second valve port and a third valve port are communicated; the high-temperature and high-pressure refrigerant compressed by the compressor enters a heat exchanger, tap water and floor heating water flow out as hot water after heat exchange, the temperature of the high-temperature and high-pressure refrigerant is reduced after heat exchange with the tap water and the floor heating water, but the high-temperature and high-pressure refrigerant still is high-temperature high-pressure refrigerant, then the high-temperature and high-pressure refrigerant enters an indoor fan coil through a first central air-conditioning multi-connected main circuit and an air-conditioning terminal branch circuit to exchange heat with indoor air, indoor heating is performed, the refrigerant subjected to heat exchange and temperature reduction is reduced through a second central air-conditioning multi-connected main circuit and a throttling device, the temperature is rapidly reduced, then the low-temperature and low-pressure refrigerant enters an evaporator to exchange heat with the external atmosphere and is heated, enters the compressor to be further compressed into the high-temperature and high-pressure refrigerant, enters the next cycle, and the air subjected to heat exchange and temperature reduction through the evaporator is discharged through an outdoor fan;
b) Winter hot water production, floor heating and heating, air conditioner closing, evaporator defrosting: a first valve port of the four-way valve is communicated with a second valve port, and a third valve port of the four-way valve is communicated with a fourth valve port; the high-temperature and high-pressure refrigerant compressed by the compressor enters the heat exchanger, tap water and floor heating water flow out as hot water after heat exchange, the temperature of the high-temperature and high-pressure refrigerant is reduced after heat exchange with the tap water and the floor heating water, but the high-temperature and high-pressure refrigerant still has higher temperature, then the high-temperature and high-pressure refrigerant enters the evaporator, the evaporator is heated for defrosting, the pressure of the high-pressure refrigerant after heat exchange and temperature reduction is suddenly reduced after passing through the throttling device, the temperature is rapidly reduced, and then the low-temperature and low-pressure refrigerant enters the compressor through the second central air conditioner multi-connected main path, the balance valve and the first central air conditioner multi-connected main path to be compressed into the high-temperature and high-pressure refrigerant and enters the next cycle;
c) Heating water in summer and refrigerating an air conditioner: a first valve port of the four-way valve is communicated with a second valve port, and a third valve port of the four-way valve is communicated with a fourth valve port; the high-temperature high-pressure refrigerant compressed by the compressor enters the heat exchanger, tap water flows out to be hot water after heat exchange, the temperature of the high-temperature high-pressure refrigerant is reduced after the high-temperature high-pressure refrigerant exchanges heat with the tap water, but the high-temperature high-pressure refrigerant still has higher temperature, then the high-temperature high-pressure refrigerant enters the evaporator to exchange heat with the external atmosphere to reduce the temperature, air heated by the heat exchange of the evaporator is discharged by the outdoor fan, the pressure of the high-pressure refrigerant cooled by the heat exchange of the evaporator is suddenly reduced after passing through the throttling device, the temperature is rapidly reduced, then the low-temperature low-pressure refrigerant passes through the second central air conditioning multi-connected main circuit and the air conditioner tail end branch circuit to reach the indoor fan coil to exchange heat with indoor air, the indoor refrigeration is carried out, and the low-pressure refrigerant heated by the heat exchange enters the compressor to be compressed into the high-temperature high-pressure refrigerant through the first central air conditioning multi-connected main circuit to enter the next cycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210822209.0A CN115264554A (en) | 2022-07-12 | 2022-07-12 | Ground heating hot water unit of natural fluorine ground water type central air conditioner and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210822209.0A CN115264554A (en) | 2022-07-12 | 2022-07-12 | Ground heating hot water unit of natural fluorine ground water type central air conditioner and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115264554A true CN115264554A (en) | 2022-11-01 |
Family
ID=83764844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210822209.0A Pending CN115264554A (en) | 2022-07-12 | 2022-07-12 | Ground heating hot water unit of natural fluorine ground water type central air conditioner and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115264554A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005016882A (en) * | 2003-06-27 | 2005-01-20 | Mitsubishi Electric Corp | Air conditioning system |
| CN201866995U (en) * | 2010-11-23 | 2011-06-15 | 青岛海之新能源有限公司 | Hot water air-conditioning system |
| CN203478601U (en) * | 2013-08-01 | 2014-03-12 | 马鞍山市博浪热能科技有限公司 | Heat pump water heater |
| CN203478692U (en) * | 2013-08-22 | 2014-03-12 | 广州众信实业有限公司 | Total heat recovery household multi-split air-conditioner system |
| CN107305045A (en) * | 2016-04-22 | 2017-10-31 | 青岛海尔新能源电器有限公司 | A kind of changes in temperature trilogy supply air-conditioning |
| CN108019808A (en) * | 2017-12-04 | 2018-05-11 | 珠海格力电器股份有限公司 | Heat pump system and its control method |
| CN108105907A (en) * | 2017-03-01 | 2018-06-01 | 宁波港菱环境科技股份有限公司 | A kind of hot water, air-conditioning, heating combined supply system |
| CN207515270U (en) * | 2017-09-20 | 2018-06-19 | 珠海格力电器股份有限公司 | A kind of heat pump system |
| CN108224848A (en) * | 2018-02-28 | 2018-06-29 | 徐生恒 | Dual-purpose air can be with the heat pump air conditioning system of ground energy |
| CN110332726A (en) * | 2019-08-01 | 2019-10-15 | 珠海格力电器股份有限公司 | Heat pump unit and control method |
| CN110779233A (en) * | 2019-10-25 | 2020-02-11 | 杭州鸿雁管道系统科技有限公司 | Air source heat pump air conditioner floor heating hot water unit |
| CN113446714A (en) * | 2021-06-23 | 2021-09-28 | 珠海格力电器股份有限公司 | Dynamic deviation control method of water multi-connected system and water multi-connected system |
| CN113739238A (en) * | 2021-09-18 | 2021-12-03 | 南京天加环境科技有限公司 | Heat pump triple co-generation system of single-water-side heat exchanger |
-
2022
- 2022-07-12 CN CN202210822209.0A patent/CN115264554A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005016882A (en) * | 2003-06-27 | 2005-01-20 | Mitsubishi Electric Corp | Air conditioning system |
| CN201866995U (en) * | 2010-11-23 | 2011-06-15 | 青岛海之新能源有限公司 | Hot water air-conditioning system |
| CN203478601U (en) * | 2013-08-01 | 2014-03-12 | 马鞍山市博浪热能科技有限公司 | Heat pump water heater |
| CN203478692U (en) * | 2013-08-22 | 2014-03-12 | 广州众信实业有限公司 | Total heat recovery household multi-split air-conditioner system |
| CN107305045A (en) * | 2016-04-22 | 2017-10-31 | 青岛海尔新能源电器有限公司 | A kind of changes in temperature trilogy supply air-conditioning |
| CN108105907A (en) * | 2017-03-01 | 2018-06-01 | 宁波港菱环境科技股份有限公司 | A kind of hot water, air-conditioning, heating combined supply system |
| CN207515270U (en) * | 2017-09-20 | 2018-06-19 | 珠海格力电器股份有限公司 | A kind of heat pump system |
| CN108019808A (en) * | 2017-12-04 | 2018-05-11 | 珠海格力电器股份有限公司 | Heat pump system and its control method |
| CN108224848A (en) * | 2018-02-28 | 2018-06-29 | 徐生恒 | Dual-purpose air can be with the heat pump air conditioning system of ground energy |
| CN110332726A (en) * | 2019-08-01 | 2019-10-15 | 珠海格力电器股份有限公司 | Heat pump unit and control method |
| CN110779233A (en) * | 2019-10-25 | 2020-02-11 | 杭州鸿雁管道系统科技有限公司 | Air source heat pump air conditioner floor heating hot water unit |
| CN113446714A (en) * | 2021-06-23 | 2021-09-28 | 珠海格力电器股份有限公司 | Dynamic deviation control method of water multi-connected system and water multi-connected system |
| CN113739238A (en) * | 2021-09-18 | 2021-12-03 | 南京天加环境科技有限公司 | Heat pump triple co-generation system of single-water-side heat exchanger |
Non-Patent Citations (1)
| Title |
|---|
| 关文吉: "《供暖通风空调设计手册》", 中国建材工业出版社, pages: 921 - 922 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103229006B (en) | Supplying hot water air-conditioning set composite | |
| CN203203305U (en) | Air conditioner device | |
| CN2802328Y (en) | Energy-storage compound air-conditioning system | |
| CN101644508B (en) | Multi-connected air conditioner multifunctional system for cold water and hot water | |
| CN104279667A (en) | Phase-change energy-storage air-conditioning system | |
| CN201652646U (en) | Dynamic ice cold storage system | |
| CN103574987A (en) | Cold and hot multi-functional economizer system | |
| CN101201198A (en) | Refrigerant mechanical circulation type ice storage cold-hot pump air-conditioning unit | |
| CN108870598A (en) | A kind of separate heat pipe energy-storage air conditioner system | |
| CN202254480U (en) | Multifunctional water-heating air-conditioning system | |
| CN106369721A (en) | Household small-sized energy storage air conditioner system | |
| CN102889708A (en) | Two-source heat pump multi-function machine | |
| CN110779233A (en) | Air source heat pump air conditioner floor heating hot water unit | |
| CN103388922B (en) | Dual-compressor multifunctional air source heat pump air conditioner system | |
| CN102788447A (en) | Heat pump air conditioning system and water dispenser | |
| CN110579036A (en) | Multi-split cold and hot water system and control method thereof | |
| CN201285128Y (en) | Ice cold-accumulation heat pump air-conditioning unit | |
| CN211177489U (en) | Air source heat pump air conditioner floor heating hot water unit | |
| CN206113384U (en) | Refrigeration or heat pump system | |
| CN100552327C (en) | The compressor discharge pressure control device of heat pump and heat pump | |
| CN204141892U (en) | A kind of reduced form Practical multifunction hot-water air conditioner | |
| CN115264554A (en) | Ground heating hot water unit of natural fluorine ground water type central air conditioner and control method thereof | |
| CN102022791B (en) | Energy accumulation type air conditioning water chiller/heater | |
| CN102062453B (en) | Domestic cold and hot all-in-one machine | |
| CN205783465U (en) | A kind of cooling unit and be provided with the cooling by wind of this cooling unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |