CN210241844U - Efficient triple-generation air conditioner water heater system - Google Patents

Efficient triple-generation air conditioner water heater system Download PDF

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Publication number
CN210241844U
CN210241844U CN201920895771.XU CN201920895771U CN210241844U CN 210241844 U CN210241844 U CN 210241844U CN 201920895771 U CN201920895771 U CN 201920895771U CN 210241844 U CN210241844 U CN 210241844U
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China
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mode
air
hot water
conditioning
heating
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Inventor
Zhaozhi Zheng
郑兆志
Caihang Li
李财航
Xiyu Li
李锡宇
Zhifeng Luo
罗志峰
Haoxian Mo
莫浩贤
Jiaqing Zhang
张嘉庆
Yuhang Guo
郭宇航
Qinbo He
何钦波
Yuchun Li
李玉春
Huaming Yu
余华明
Gai Li
李改
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Foshan Jiuyan Technology Innovation Co ltd
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Shunde Polytechnic
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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
    • F24F5/0096Air-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 combined with domestic apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H4/00Fluid heaters characterised by the use of heat pumps
    • F24H4/02Water heaters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00Compression machines, plants or systems, with reversible cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B47/00Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/02Defrosting cycles

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  • 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)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The utility model discloses a high-efficient trigeminy supplies air conditioner hot water machine system, including first, two refrigeration return circuits, first refrigeration return circuit includes the first compressor, the first four-way solenoid valve, evaporative condenser, the first throttling element, the evaporimeter that connect gradually; the second refrigeration loop comprises a second compressor, a second four-way electromagnetic valve, a shell and tube heat exchanger, a second throttling element and an evaporative condenser, and the evaporative condenser is provided with two independent heat exchange branches which are respectively connected with the first refrigeration loop and the second refrigeration loop; the system comprises a multi-connected air-conditioning mode, a multi-connected hot water supply mode, a multi-connected mixed mode and a multi-connected auxiliary mode; the multi-air-conditioning mode comprises a cold air mode, a warm air mode, a priority auxiliary refrigeration mode and a priority auxiliary heating mode. The utility model discloses an air conditioning system and hot water system realize multi-functional mode, high efficiency, stability, have not only utilized the air source, also can utilize the water source ability, have guaranteed the superior use of extremely hot weather and severe cold condition.

Description

Efficient triple-generation air conditioner water heater system
Technical Field
The utility model relates to a high-efficient trigeminy supplies air conditioner hot water machine system.
Background
The air conditioner and hot water machine combined heat pump unit utilizing air energy is commonly called as 'air source triple co-generation', and three modes can be realized: air conditioner, air conditioner + hot water, hot water.
The traditional triple co-generation consists of one machine (compressor) and one system (the same refrigerant pipeline), and the main problems are that the problems of low efficiency, poor adaptive working condition, instability and the like under the three modes cannot be well solved, for example: the optimal ratio of the three modes cannot be considered, so that the hot water production efficiency and the air conditioning efficiency are low; the sensitivity of the working condition is large, so that the environment is difficult to adapt to the change; the heating cannot be performed; the pipeline and the pipeline control are complex; the electrical control is complex; the oil return is difficult to burn out the compressor; a plurality of faults are generated; the technical problems of difficult repair and the like cause a plurality of problems in the use process of the product user and the product cannot normally run, and at present, each heat pump manufacturer stops producing the product.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high-efficient trigeminy of multiple functional mode supplies air conditioner hot water machine system, design through cold and hot complementary variable function high-efficient evaporative condenser uses, combine two independent compressors to form two refrigeration cycle return circuits of independent operation, realized cold and hot "negative complementary", for cascade refrigeration, ladder dehumidification, especially use and realize heat transfer area multiplication, complementary defrosting, energy storage heating, the conversion of multiple functions such as air source + water source utilization provides necessary control technology support in the system that supplies new product more frequently.
The technical proposal of the utility model for solving the technical problem is that: a high-efficiency triple-generation air-conditioning water heater system comprises a first refrigeration loop with an air conditioning function and a second refrigeration loop capable of providing hot water, and is characterized in that the first refrigeration loop comprises a first compressor, a first four-way electromagnetic valve, an evaporative condenser, a first throttling element and an evaporator which are sequentially connected; the second refrigeration loop comprises a second compressor, a second four-way electromagnetic valve, a shell and tube heat exchanger, a second throttling element and the evaporative condenser, and the evaporative condenser is provided with two independent heat exchange branches which are respectively connected with the first refrigeration loop and the second refrigeration loop; the efficient triple-generation air-conditioning and water-heating machine system comprises a multi-connected air-conditioning mode, a multi-connected hot water supply mode, a multi-connected mixed mode and a multi-connected auxiliary mode; the multi-air-conditioning mode comprises a cold air mode, a warm air mode, a priority auxiliary refrigeration mode and a priority auxiliary heating mode.
The multi-connection hot water supply mode comprises a hot water heating mode and a priority auxiliary hot water heating mode.
The multi-union hybrid mode includes: a cold air and hot water mode, and a warm air and hot water mode.
The multi-connection auxiliary mode comprises: a heating water auxiliary defrosting mode and a heating air auxiliary defrosting mode.
Evaporative condenser includes the fin, alternates the straight tube in the middle of the fin, and the both ends of straight tube are connected in order to form two crisscross walkings of two S-shapes refrigerant trend circuit, evaporative condenser are including two heat transfer branch roads that parallel, and the straight tube of each heat transfer branch road is put down through the elbow in heat exchanger side and is connect and cross-over connection according to arranging, and it puts down the side and forms a plurality of U-shaped tube segments of arranging with, and the U-shaped tube segment of arranging with of each heat transfer branch road is arranged from the straight tube of one row according to the order looks mistake in proper order in turn and is got into another row of straight tube row through the.
The utility model has the advantages that:
the utility model discloses a condensation heat exchanger, and then designed air conditioner and hot water machine in the unit system and divided two relatively independent systems that combine organically again, supply unstability, inefficiency, adaptation operating mode ability are poor, the compressor burns out the scheduling problem, it realizes multi-functional mode, high efficiency, stability to have guaranteed air conditioning system and hot water system, and possess the energy storage ability of handling and each other helping, not only utilized the air source, also can utilize the water source ability, the superior use of hot weather and severe cold condition has been guaranteed.
Drawings
Fig. 1 is a first control flow chart of the air-conditioning water heater system of the present invention.
Fig. 2 is a second flow chart of the control of the air-conditioning water heater system of the present invention.
Fig. 3 is a third flow chart of the control process of the air-conditioning water heater system of the present invention.
Fig. 4 is a schematic structural view (front view) of the evaporative condenser of the present invention.
Fig. 5 is a schematic structural view (side view) of the evaporative condenser of the present invention.
Fig. 6 is a schematic structural view (plan view) of the evaporative condenser of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected. Can also be detachably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.
As shown in fig. 1-6, the utility model provides a multi-functional air conditioner water heater system, the many confession air conditioner modes that ally oneself with: the system comprises a cold air mode, a warm air mode, a priority enhanced refrigeration mode and a priority enhanced heating mode; the multi-hot water supply mode comprises the following steps: a hot water mode, a priority enhanced hot water mode; the multi-union hybrid mode includes: an air conditioner and hot water mode, a heating and hot water mode; the multi-connection auxiliary mode comprises: a heating water auxiliary defrosting mode and a heating air auxiliary defrosting mode. On the control interface of the machine, display of each mode and establishment of a mode key can be set, and a user can complete input of commands by selecting different modes or combination of different modes through the keys, and regarding the control aspect, the following detailed description is provided.
In the following, we describe the structure of the evaporative condenser 10, and referring to fig. 4-6, the evaporative condenser 10 includes fins 21, U-shaped refrigerant tubes inserted in the middle of the fins, the U-shaped refrigerant tubes being connected at one end of the heat exchanger by a bend 22 to form an S-shaped refrigerant running line, which comprises four parallel straight tube rows (25, 26, 27, 28) comprising two parallel heat exchange branches (101, 102), each heat exchange branch is inserted with a plurality of U-shaped tubes into fins 21 (see figures 4 and 6) in rows at the left side of the heat exchanger and crossly bridged at the right side of the heat exchanger, namely, two straight pipes of each U-shaped pipe section in the same row are arranged on the same straight pipe row in the same vertical row when viewed from the left side of the heat exchanger, the straight pipe rows (25, 26, 27 and 28) comprise the straight pipe rows, and the U-shaped pipe sections in the same row of each heat exchange branch circuit are staggered in sequence and enter the straight pipe rows in the other row through the cross-over elbows. As shown in fig. 5, the U-shaped tube segments in the same row of the first heat exchange branch 101 are first bridged from the straight tube row 25 to the U-shaped tube segments in the same row on the straight tube row 26 through the large elbow 221, then return to the U-shaped tube segments in the same row on the straight tube row 25 through the small elbow 222, and then bridged to the straight tube row 26 through the large elbow 221, and then return to the straight tube row 25, so as to alternate in turn. The second heat exchange branch 102 is first bridged from the straight tube row 26 to the same row of U-shaped tube sections on the straight tube row 25 by a small bend 222 and then diverted back to the straight tube row 26 by a large bend 221 until leaving the heat exchanger from the bottom of the upper branch L1. Similarly, the first heat exchange branches 101 and the second heat exchange branches 102 located in the straight tube rows (27, 28) are alternately exchanged between the straight tube rows 27 and 28. Therefore, the pipelines of the heat exchanger are staggered, and heat exchange is more thorough through the fins, so that the cold and hot complementary efficiency is improved. The first heat exchange branch and the second heat exchange branch are mutually countercurrent.
Each heat exchange branch is divided into an upper branch, a middle branch and a lower branch which are arranged in parallel. Referring to fig. 5, L1 shows the upper branch portion of the three heat exchange branches, L2 shows the middle branch of the three heat exchange branches, L3 shows the lower branch of the three heat exchange branches, and the three groups of branches are connected in parallel, so that the overall temperature distribution of the heat exchanger is more uniform.
Because the heat exchanger adopts a double-row three-inlet three-outlet structure, three branches of each heat exchange branch are connected through a liquid separator and a liquid collector, and all three branches of the first heat exchange branch are connected with the first liquid separator through all inlets and all outlets are connected with the first liquid collector; all three inlets of the three branches of the second heat exchange branch are connected with a second liquid separator, and the outlets of the three branches of the second heat exchange branch are connected with a second liquid collector.
The first liquid separator and the first liquid collector are connected in the first refrigeration loop, and the second liquid separator and the second liquid collector are connected in the second refrigeration loop. All the heat exchange branches belong to two independent refrigerating loops. As shown in figure 1 of the drawings, in which,
the first refrigeration circuit comprises a first compressor 1, a first four-way solenoid valve 2, an evaporative condenser 10, a first throttling element 3, an evaporator 4 and corresponding piping accessories (not shown). The second refrigeration circuit comprises a second compressor 11, a second four-way solenoid valve 12, an outer disc type or inner disc type pressure-bearing water tank 14, a second throttling element 13, an evaporative condenser 10 and corresponding pipeline accessories (not shown).
Ten operation modes can be realized to this air source confession air conditioner hot water machine that ally oneself with, enumerate as follows respectively:
referring to fig. 1, the air source multi-combined air conditioning water heater can realize six modes such as a cold air mode and a hot water mode:
mode one, cold air + hot water mode: the heating water system is operated in which the electronic expansion valve (second throttling element 13) is operated, the second four-way solenoid valve 12 is not operated, and the axial flow fan near the evaporative condenser 10 is not operated; the air conditioning system is operated in which the first throttling element 3 is operated, the first four-way solenoid valve 2 is not operated, and the axial flow fan near the evaporator 4 is normally operated. The refrigerant flow in the system goes to figure 1.
As shown in fig. 1, when cold air and hot water are required to be simultaneously produced during operation, the operation is divided into ① air-conditioning refrigeration and ② hot water production, and the two processes are simultaneously carried out, namely ① first compressor 1 → high-pressure air pipe → first four-way solenoid valve 2: end communication b end → F1 branch of evaporative condenser 10 → indoor unit electronic expansion valve (first throttling element 3) → liquid pipe → evaporator 4 (air-conditioning indoor unit) → first four-way solenoid valve 2: c end communication d end → low-pressure air pipe → first reservoir → first compressor 1.
② the second compressor 11 → the high pressure gas pipe → the second four-way solenoid valve 12: a1 end communicates with the b1 end → the refrigerant pipe of the shell-and-tube heat exchanger 14 → the second throttling element 13 → the liquid pipe → the F2 branch of the evaporative condenser 10 → the second four-way solenoid valve 12: c1 end communicates with the d1 end → the low pressure gas pipe → the gas-liquid separator (or second accumulator) → the second compressor 11.
Mode two, hot water making mode: the air conditioning system is not running; the area of the evaporative condenser is multiplied; and (3) operating the water heating system, wherein the second four-way electromagnetic valve 12 does not work, the second throttling element 13 works, and the axial flow fan near the evaporative condenser 10 intelligently operates in an energy-saving manner according to the temperature sensing condition of the high-efficiency heat exchanger. The evaporative condenser 10 is provided with a temperature sensing head, intelligent energy-saving operation is carried out according to the temperature sensing condition of the high-efficiency heat exchanger, the accumulation of operation time is calculated at the same time according to the real-time temperature monitored by the high-efficiency heat exchanger, a high-speed operation mode and a low-speed operation mode are selected according to a logic calculation value, and the operation of a fan is stopped when a certain temperature is exceeded, so that the heat exchange efficiency is improved or the energy consumption.
Mode three, cold air mode: the water heating system is not operated; the area of the evaporative condenser is multiplied; and (3) operating the air conditioning system, wherein the first throttling element 3 works, the first four-way electromagnetic valve 2 does not work, the axial flow fan near the evaporative condenser 10 intelligently operates in an energy-saving manner according to the temperature sensing condition of the high-efficiency heat exchanger, and the axial flow fan near the evaporator 4 normally operates.
Mode four, preferentially intensifying the hot water heating mode (winter ultra-low temperature environment): when the water heating system operates, the second four-way electromagnetic valve 12 does not work, the second throttling element 13 works, and the axial flow fan near the evaporative condenser 10 intelligently operates in an energy-saving manner according to the temperature sensing condition of the high-efficiency heat exchanger; the refrigeration system is in forced operation (intelligent protection), the first four-way electromagnetic valve 2 does not work, the electronic first throttling element 3 works, and the axial flow fan near the evaporator 4 is in intelligent operation according to the temperature difference condition. In the mode, the air conditioning system is forced to run to ensure that the evaporative condenser 10 has a proper heat exchange temperature difference to realize cold and hot complementation, so that the normal operation of a hot water system is ensured.
Mode five, preferential enhanced refrigeration mode (summer ultra-high temperature environment): the heating water system is forced to run, the second four-way electromagnetic valve 12 does not work, the second throttling element 13 works, the temperature control electric valve 15 is started to intelligently control the discharge of water, the temperature of the water tank is ensured not to exceed 35 ℃, the second compressor is stopped to keep working, and the axial flow fan near the evaporative condenser 10 does not run; the air conditioning system is operated, the first four-way electromagnetic valve 2 does not work, and the electronic first throttling element 3 works. This mode prevents the air conditioning system from being protectively shut down and improves the cooling efficiency in the ultra-high temperature environment by forcibly operating the hot water system to appropriately lower the temperature of the evaporative condenser 10.
Mode six, heating water auxiliary defrost mode (winter): the heating water system carries out logic comparison according to the hot water temperature and the monitoring temperature of the evaporative condenser, outputs a shutdown signal of the heating water system, and does not operate the axial flow fan near the evaporative condenser 10; the refrigeration system is forced to operate, the first four-way electromagnetic valve 2 does not work, the electronic first throttling element 3 works, and the axial flow fan near the evaporator 4 intelligently operates according to the temperature difference condition. In order to prevent the compressor from being started due to the fact that the temperature of the external environment is too low in winter, the temperature of the evaporative condenser 10 is increased through forced operation of the air conditioning system, and therefore thorough defrosting is guaranteed.
Referring to fig. 2, the air-source multi-connected air-conditioning water heater can realize two modes of heating, hot water heating and heating (in winter):
mode seven, heating water + heating mode (winter): the water heating system is operated, wherein the second four-way electromagnetic valve 12 does not work, the second throttling element 13 works, and the axial flow fan near the evaporative condenser 10 runs in high wind; the refrigeration system operates, wherein the first four-way solenoid valve 2 operates, the electronic first throttling element 3 operates, and the axial flow fan near the evaporator 4 operates normally. Because the first four-way electromagnetic valve 2 works, high-temperature exhaust gas of the compressor firstly enters the evaporator 4, so that a room enters a heating mode, and two groups of loops of the evaporative condenser 10 exchange heat with outside air, therefore, the high-wind-level operation of the fan motor needs to be controlled.
As shown in fig. 2, when heating and hot water heating are required simultaneously during operation, the operation is divided into ① air conditioning and hot water heating and ② hot water heating, and the two processes are performed simultaneously, namely ① first compressor 1 → high-pressure air pipe → first four-way solenoid valve 2: end communication d end → evaporator 4 (air conditioning indoor unit) → indoor unit electronic expansion valve (first throttling element 3) → liquid pipe → branch F1 of evaporative condenser 10 → first four-way solenoid valve 2: b end communication c end → low-pressure air pipe → first reservoir → first compressor 1.
② the second compressor 11 → the high pressure gas pipe → the second four-way solenoid valve 12: a1 end communicates with the b1 end → the refrigerant pipe of the shell-and-tube heat exchanger 14 → the second throttling element 13 → the liquid pipe → the F2 branch of the evaporative condenser 10 → the second four-way solenoid valve 12: c1 end communicates with the d1 end → the low pressure gas pipe → the gas-liquid separator (or second accumulator) → the second compressor 11.
Mode eight, warm air mode (winter): stopping the operation of the heating water system; the refrigeration system operates, wherein the first four-way solenoid valve 2 operates, the electronic first throttling element 3 operates, and the axial flow fan near the evaporator 4 operates normally. In this mode, the hot water system stops running, namely, only one group of loops of the evaporation condenser 10 participate in heat exchange, and the fin structure is equivalent to double the heat exchange area, so that the fan motor on the fin structure can be intelligently controlled to start and stop.
Referring to fig. 3, the air-source multi-connected air-conditioning water heater can also realize a preferential intensified heating mode (in winter):
ninth mode, preferential intensive heating mode (winter): the operation of the heating water system depends on the intelligent operation of the temperature of the water tank: the control system determines whether to start a priority auxiliary heating mode according to whether the outdoor environment temperature is less than 3 ℃ and whether the temperature of hot water prepared in the water tank is more than 50 ℃, wherein the second four-way electromagnetic valve 12 works, the second throttling element 13 works, and the axial flow fan of the evaporative condenser 10 stops; the air conditioning system operates for heating, wherein the first four-way solenoid valve 2 operates, the electronic first throttling element 3 operates, and the axial flow fan near the evaporator 4 operates normally. In this mode, in order to ensure the heating capacity of the room, the second four-way solenoid valve 12 is energized to transfer the capacity of the hot water in the hot water tank 14 to the evaporative condenser 10 for releasing, and on the other hand, the air conditioning system absorbs heat in the evaporative condenser 10 to evaporate the refrigerant and return the refrigerant to the first compressor 1, so as to ensure the efficient operation of the heating system.
As shown in fig. 3, during operation, when preferential heating is required, the operation is divided into ① air-conditioning heating and ② cold water (the process is started and stopped according to the water temperature of the water tank of the shell-and-tube heat exchanger), and the two processes are ①, namely the first compressor 1 → the high-pressure air pipe → the first four-way solenoid valve 2, end a is communicated with the d end → the evaporator 4 (air-conditioning indoor unit) → the indoor unit electronic expansion valve (first throttling element 3) → the liquid pipe → the F1 branch of the evaporative condenser 10 → the first four-way solenoid valve 2, end b is communicated with the c end → the low-pressure air pipe → the first reservoir → the first compressor 1.
② the second compressor 11 → the high pressure gas pipe → the second four-way solenoid valve 12: a1 end communicates with the d1 end → the F2 branch of the evaporative condenser 10 → the second throttling element 13 → the liquid pipe → the refrigerant pipe of the shell-and-tube heat exchanger 14 → the second four-way solenoid valve 12: b1 end communicates with the c1 end → the low pressure gas pipe → the gas-liquid separator (or second accumulator) → the second compressor 11.
Mode ten, heating assisted defrost mode (winter): in the heating operation, the refrigerating system operates, wherein the first four-way electromagnetic valve 2 works, the electronic first throttling element 3 works, and the axial flow fan near the evaporator 4 normally operates; when the control system judges that the evaporative condenser frosts according to the ambient temperature, the temperature of the evaporative condenser and the operation time, the air conditioning system stops; and at the moment, the water heating system operates to assist in defrosting: the second four-way solenoid valve 12 is not operated, the second throttling element 13 is operated, and the axial flow fan near the evaporative condenser 10 is stopped.
The utility model discloses an operation of each mode control can be carried out according to following step:
1) collecting an air conditioning mode setting instruction and/or a hot water mode setting instruction sent by a user;
2) receiving an air-conditioning mode setting instruction and/or a hot water mode setting instruction, and comparing the received air-conditioning mode setting instruction and/or the hot water mode setting instruction with stored preset information to distinguish an air-conditioning mode and a hot water mode corresponding to a user instruction;
3) storing the processing result;
4) and sending the processing result to an air-conditioning hot water unit to indicate the unit to start the function corresponding to the user setting mode.
5) And transmitting and indicating the processing result to a display unit to display the air-conditioning mode and/or the hot water mode selected by the current user.
The following is a detailed description:
the entering operation of the control mode may be such that:
in the control interface, a separate mode control key is provided, and the user switches between different modes by continuously pressing the mode control key in use so as to select a corresponding function. When the user performs the mode setting operation, the user cyclically selects and sets the mode among several preset modes by continuously clicking the mode setting key. For example, currently, in mode 2, the screen displays "hot water mode"; clicking a mode setting key once, switching the unit mode into a mode 3-a cold air mode, and providing an air conditioning mode by the unit; and when the current mode is 10, pressing the mode setting key once, the unit mode is switched to the mode 1, and the unit provides cold air and heats water simultaneously. According to the scheme, a user does not need to know and memorize the unit functions corresponding to the preset modes, and the unit may not respond when the user selects the operation mode, because whether the operation condition is met or not is automatically implemented through intelligent control of the control system through indoor and outdoor environment temperature, hot water temperature, operation time, mode characteristics and the like tested in real time.
The entering operation of another control mode may be such that: the air-conditioning mode setting unit collects an air-conditioning mode setting instruction sent by a user and sends the air-conditioning mode setting instruction to the processing unit for processing. The operation interface comprises a temperature display area, a mode key area, a mode display area and a time display area.
The controller of the air-conditioning hot water unit comprises a communication unit, a processing unit, a display unit, a storage unit, an air-conditioning mode setting unit and a hot water mode setting unit, wherein the air-conditioning mode setting unit acquires an air-conditioning mode setting instruction sent by a user and sends the air-conditioning mode setting instruction to the processing unit for processing, and the air-conditioning mode setting instruction is selected from a refrigerating mode instruction, a heating mode instruction, a priority enhanced refrigerating mode instruction and a priority enhanced heating mode instruction; the hot water mode setting unit acquires a hot water mode setting instruction sent by a user and sends the hot water mode setting instruction to the processing unit for processing, and the hot water mode setting instruction is selected from hot water, priority enhanced hot water making and auxiliary defrosting mode instructions for making hot water; the storage unit is used for storing preset air-conditioning mode and hot water mode information and the air-conditioning mode and hot water mode information processed by the processing unit; the processing unit receives the user instructions sent by the air-conditioning mode setting unit and the hot water mode setting unit, compares the user instructions with preset information stored in the storage unit to distinguish the air-conditioning mode and the hot water mode corresponding to the user instructions, and sends the processing result to the storage unit for storage; the communication unit is used for receiving the processing result from the processing unit and sending the processing result to the air-conditioning hot water unit so as to indicate the unit to start the function corresponding to the user setting mode. The display unit is used for receiving the instruction sent by the processing unit and displaying the air-conditioning mode and/or the hot water mode selected by the current user.
The air-conditioning mode setting unit also comprises a cooling mode setting key, a heating mode setting key, a priority enhanced cooling mode setting key and a priority enhanced heating mode setting key, and is used for enabling a user to send an air-conditioning mode setting instruction through the setting keys.
The hot water mode setting unit comprises a hot water mode setting key, a priority enhanced hot water mode setting key and a hot water auxiliary defrosting mode setting key, and is used for enabling a user to set instructions through the setting keys. The indoor unit controller is used to set the on/off, operation mode, target temperature and wind speed, etc. of the indoor unit.
Therefore, the client can complete the setting command of the nine-large mode through the operation of the mode key.
In the existing triple-supply cold and hot water heat pump system, a compressor is used for driving a system refrigerant to circulate, a hot water heat exchanger, an evaporator and a cold water heat exchanger are arranged in the system, and when single hot water or single cold and hot water is produced, the cold water heat exchanger or the hot water heat exchanger is not in a condensing system and is easy to be in an unbalanced state, so that the system is unstable. The utility model discloses according to two relatively independent mutually of air conditioner and two systems of hot water machine and drag supplementary thinking again, unite two into one the condenser of air conditioner and the evaporimeter of hot water machine to the branch belongs to two independent refrigerating system, combines together two independent refrigerating system's evaporimeter and condenser in other words, makes the overall system more optimize.
Moreover, the specification of the heat exchanger is 4 rows of straight lines, 25 pitch holes in a staggered mode, the pipelines of the heat exchanger are crossed by bridging two sets of pipelines through the integral fins, and the small U-shaped bends and the connection mode of the small U-shaped bends are designed, the first heat exchange branch and the second heat exchange branch are mutually in counter flow, and the cold and hot complementary efficiency is improved through the design. In order to ensure the uniform distribution of the refrigerant, the heat exchanger is designed into a double three-inlet three-outlet structure, and the overall performance reaches the optimum.
The heat exchanger is used as an evaporator of the water heater and a condenser of the air conditioner and is connected and installed in the outdoor unit through a pipeline. The heat exchanger is applied to products and also solves a series of problems of oil return, overheating, defrosting, load adjustment and the like of a system unit.
The air source multi-connected air-conditioning water heater is a 3-P constant-frequency air-conditioning water heater and can be expanded and designed into various series products such as variable frequency products, high-temperature environments, low-temperature environments, 1-12HP products and the like. The component can also be used for cascade refrigeration equipment and dehumidifier products.
The utility model discloses the product has its science and advance.
Scientifically: the method comprises the steps of actually testing three air-cooled finned tube type condensers and evaporators of the same level in the American and standard-force hot water machine professional factory, designing and calculating according to heat transfer and fluid theoretical knowledge according to tested parameters, rechecking, wherein the calculation result comprises heat transfer coefficients, tube lengths, fin quantity, material cost and the like, comprehensively comparing, preferably selecting optimal tube diameters, tube pitches, plate widths, flow directions, flow direction path element parameters and the like on the basis, designing a cold-hot bridging function-variable evaporative condenser according to new functions of an air source triple air-supply air-conditioning hot water machine, and practically applying the condenser in a novel air source triple air-supply air-conditioning hot water machine unit.
The advancement is as follows: the work designs a cold and hot complementary variable function evaporative condenser on a commonly used finned tube surface heat exchanger, belongs to an innovative design, compared with the traditional cascade evaporative condenser, the structure of the latter can only be a sleeve type, a shell-and-tube type and a shower type, and is only used for the cold-heat exchange of the cascade refrigeration or a central air conditioner, and this work passes through the design that the fin bridging was crisscross with the pipeline, realizes cold and hot complementary high-efficient heat transfer, can be used for cascade refrigeration, dehumidifier, especially use and realize the conversion of multiple functions such as heat transfer area multiplication, complementary defrosting, energy storage heating in the system that new air source trigeminy supplied, input keywords such as "evaporation condensing heat exchanger", "high efficiency heat exchanger", "cascade heat exchanger", "multifunctional heat exchanger", "cold and hot complementary heat exchanger" and search for china's patent network and CNKI in the network, do not have the utility model and the design research of any this work or similar this work.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents, and all changes that can be made without inventive step are intended to be embraced therein.

Claims (5)

1. The efficient triple-generation air-conditioning water heater system comprises a first refrigeration loop with an air conditioning function and a second refrigeration loop capable of providing hot water, and is characterized in that the first refrigeration loop comprises a first compressor, a first four-way electromagnetic valve, an evaporative condenser, a first throttling element and an evaporator which are sequentially connected; the second refrigeration loop comprises a second compressor, a second four-way electromagnetic valve, a shell and tube heat exchanger, a second throttling element and the evaporative condenser, and the evaporative condenser is provided with two independent heat exchange branches which are respectively connected with the first refrigeration loop and the second refrigeration loop;
the efficient triple-generation air-conditioning and water-heating machine system comprises a multi-connected air-conditioning mode, a multi-connected hot water supply mode, a multi-connected mixed mode and a multi-connected auxiliary mode;
the multi-air-conditioning mode comprises a cold air mode, a warm air mode, a priority auxiliary refrigeration mode and a priority auxiliary heating mode.
2. The efficient triple-generation air-conditioning and water-heating machine system according to claim 1, characterized in that: the multi-connection hot water supply mode comprises a hot water heating mode and a priority auxiliary hot water heating mode.
3. The efficient triple-generation air-conditioning and water-heating machine system according to claim 2, characterized in that: the multi-union hybrid mode includes: a cold air and hot water mode, and a warm air and hot water mode.
4. The efficient triple-generation air-conditioning and water-heating machine system according to claim 3, characterized in that: the multi-connection auxiliary mode comprises: a heating water auxiliary defrosting mode and a heating air auxiliary defrosting mode.
5. The efficient triple-generation air-conditioning and water-heating machine system according to claim 4, characterized in that: the evaporative condenser comprises fins and straight pipes inserted in the middle of the fins, the two ends of each straight pipe are connected to form two double-S-shaped refrigerant trend lines which are crossed in a staggered mode, each evaporative condenser comprises two parallel heat exchange branches, the straight pipes of each heat exchange branch are connected with cross bridges in a bent mode in a heat exchanger side in a bent mode in a staggered mode, a plurality of U-shaped pipe sections in the same row are formed in the bent mode, the U-shaped pipe sections in the same row of each heat exchange branch are staggered in sequence in turn from the straight pipe rows in the same row to enter the straight pipe rows in the other row through the bent heads of the cross bridges.
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