Energy-saving system for controlling cooling and heating of water flow window

Abstract

The invention provides a water flow window cooling and heating control energy-saving system which comprises a water flow window unit, a heat pump unit, a control unit and a cold and heat source supply and output unit in the field of water flow window application, and the cold and heat source supply and output unit is used for supplying water to the heat pump unit. The heat pump unit communicates with a water path of the water flow window unit through the first water pump, the third water pump is arranged in the heat pump, and the heat pump unit outputs water flow meeting the preset temperature to the water flow window unit. When the energy-saving system is a closed system, the energy-saving system further comprises a heat exchange unit and a second water pump, the system can intelligently adjust the operation state according to indoor and outdoor environments and personnel demand conditions, cold / heat is supplied for indoor radiation, and the number of indoor cooling and heating loads is reduced; meanwhile, unnecessary high-grade energy consumption is reduced, indoor load capacity and quality coordinated regulation and control are achieved, and the building energy efficiency level is effectively improved; the control method is accurate.

Description

Technical Field

[0001] The invention relates to the technical field of water flow window applications, and in particular to an energy-saving system for controlling heating and cooling of a water flow window. Background Art

[0002] With the improvement of building quality, the heat loss caused by window heat transfer is greater than that of wall under the same area. According to general statistics, the heat loss of glass windows is 5 to 6 times that of walls, accounting for more than 1 / 3 of the total heat dissipation of buildings. Therefore, optimizing window energy saving has become the primary breakthrough to improve the energy saving level of buildings.

[0003] In recent years, the research scope of various energy-saving fields has been continuously expanding. In terms of building energy conservation, especially window energy conservation, it has attracted much attention due to its good energy-saving benefits, comfortable user experience and rational use of resources. By designing this new type of radiant cooling / heating window and adding heat exchange units, intelligent control units and heat pump units, it has great energy-saving development potential.

[0004] In 2019, Chinese patent (201910370053.5) proposed a water flow window and its preheating water system, a solar water heating device and its control method. The solar water heating device has a simple structure, which is conducive to reducing the heat load of the solar water heating system, thereby effectively alleviating the auxiliary heating power consumption of the solar water heating system and reducing the installation area of ​​the solar collector. However, it only includes preheating and heating systems, and cannot be adaptively adjusted with environmental changes; furthermore, the main purpose of the system is to realize solar thermal utilization and preheat building hot water; at the same time, its control unit is relatively simple and has fewer control conditions, so there is still much room for improvement. Summary of the invention

[0005] To solve the above problems, the present invention provides an energy-saving system for water flow window heating and cooling control. The radiation window in the system has a simple structure, is easy to install, has high energy-saving benefits, can adapt to a variety of outdoor environmental conditions, and can be adaptively adjusted according to the environment. After large-scale application, it can greatly reduce building energy consumption, while supplying domestic water in the building and improving the indoor thermal comfort environment. Specifically include:

[0006] An energy-saving system for controlling heating and cooling of a water flow window, comprising: a water flow window unit, a heat pump unit, a control unit and a cold and hot source supply output unit, wherein the cold and hot source supply output unit is used to supply water to the heat pump unit;

[0007] The control unit comprises: a controller, a first water pump, a third water pump, a fourth water pump, a first temperature sensor and a temperature sensor, wherein the first temperature sensor is installed in the water flow window unit, the second temperature sensor is installed in the heat pump system, the controller signal connects the first temperature sensor, the second temperature sensor, the first water pump, the third water pump, the fourth water pump and the heat pump unit, and the third water pump and the fourth water pump are arranged in the heat pump unit;

[0008] When the energy-saving system is an open system, the heat pump unit is connected to the water path of the water flow window unit through the first water pump, the third water pump is arranged inside the heat pump, and the heat pump unit outputs water meeting a preset temperature to the water flow window unit;

[0009] When the energy-saving system is a closed system, the energy-saving system also includes: a heat exchange unit and a second water pump, the controller signal is connected to the second water pump, the heat exchange unit is used to adjust the water path temperature in the water flow window unit so that the water path temperature in the water flow window unit reaches a preset temperature, the heat exchange unit is connected to the heat pump system, the first water pump is used to transfer the water in the heat exchange unit to the water flow window unit, and the second water pump is used to transport the working fluid in the heat pump to the heat exchange unit and exchange heat with the water path in the water flow window unit.

[0010] Optionally, the heat pump unit comprises:

[0011] a first thermal insulation energy storage box, wherein a first heat exchanger and an auxiliary electric heater are arranged in the first thermal insulation energy storage box, and the second temperature sensor is installed in the first thermal insulation energy storage box;

[0012] A second thermal insulation energy storage box, wherein a second heat exchanger is arranged in the second thermal insulation energy storage box, and the second thermal insulation energy storage box is connected to the cold and heat source supply output unit;

[0013] A compressor, a four-way reversing valve and an electronic expansion valve, wherein the compressor is respectively connected to the first heat exchanger and the second heat exchanger through the four-way reversing valve, and an electronic expansion valve is arranged on the medium pipelines of the first heat exchanger and the second heat exchanger;

[0014] The third water pump is arranged on a pipeline supplying water from the first thermal insulation energy storage tank to the second thermal insulation energy storage tank;

[0015] The fourth water pump is arranged on the pipeline through which the second thermal insulation energy storage tank supplies water to the first thermal insulation energy storage tank.

[0016] Optionally, when the energy-saving system is an open system, the water inlet of the first thermal insulation energy storage box is connected to the window outlet of the water flow window unit, the water outlet of the first thermal insulation energy storage box is connected to the window inlet of the water flow window unit, and a filter is provided at the window inlet of the water flow window unit.

[0017] Optionally, when the energy-saving system is a closed system, the heat exchange unit is a plate heat exchanger, the water inlet of the first thermal insulation energy storage box is connected to the second outlet of the plate heat exchanger, the water outlet of the first thermal insulation energy storage box is connected to the second inlet of the plate heat exchanger, the first inlet of the plate heat exchanger is connected to the window outlet of the water flow window unit, and the first outlet of the plate heat exchanger is connected to the window inlet of the water flow window unit;

[0018] The first heat pump is disposed on a pipeline connecting the first outlet of the plate heat exchanger and the window inlet of the water flow window unit.

[0019] Optionally, the cold and hot source supply output unit of the system includes:

[0020] Municipal pipe network, solar panels and user end;

[0021] The municipal pipe network is used to supply cold water to the heat pump unit;

[0022] The solar energy component is used to supply hot water to the heat pump component;

[0023] The user end is used to receive hot water output by the heat pump unit, and the solar energy component supports water delivery to the user end;

[0024] Wherein, the solar energy component is a solar thermal component, a solar photovoltaic component or a solar photovoltaic thermal component;

[0025] Among them, the four-way reversing valve adjusts the direction according to the cooling and heating needs and the set first set temperature range, second set temperature range, third set temperature range and fourth set temperature range.

[0026] Optionally, when the energy-saving system is an open system and the water flow window provides cooling:

[0027] When the indoor temperature is higher than the first set temperature range, the first water pump is started, and the four-way reversing valve is adjusted so that the first heat exchanger is an evaporator and the second heat exchanger is a condenser. The refrigerant of the heat pump unit absorbs heat from the first thermal insulation energy storage tank in the first heat exchanger and releases heat to the second thermal insulation energy storage tank when passing through the second heat exchanger. The refrigerant absorbed by heat in the first thermal insulation energy storage tank is transported to the water flow window unit via the first water pump for radiant cooling.

[0028] When the indoor temperature is lower than the first set temperature range, if the user has a demand for hot water, the second thermal insulation energy storage tank and the solar panel jointly supply hot water to the user. At the same time, the municipal pipeline network replenishes water to the second thermal insulation energy storage tank.

[0029] Optionally, when the energy-saving system is an open system and the water flow window is used for heating:

[0030] When the indoor temperature is lower than the second set temperature range, the first water pump is started, the four-way reversing valve is adjusted so that the second heat exchanger is an evaporator and the first heat exchanger is a condenser, the refrigerant of the heat pump unit absorbs heat from the second thermal insulation energy storage tank through the second heat exchanger and releases heat to the first thermal insulation energy storage tank when passing through the first heat exchanger, and the first water pump transports the refrigerant that absorbs heat in the first thermal insulation energy storage tank to the water flow window unit for radiant heating;

[0031] When the indoor temperature is higher than the second set temperature range, if the temperature of the first thermal insulation energy storage tank is lower than the fourth set temperature range, the auxiliary electric heater in the first thermal insulation energy storage tank is turned on; if the temperature of the first thermal insulation energy storage tank is higher than the fourth set temperature range, the fourth water pump is turned on to introduce the hot water supplied by the solar panel to the second thermal insulation energy storage tank into the first thermal insulation energy storage tank.

[0032] Optionally, when the energy-saving system is a closed system and the water flow window provides cooling:

[0033] When the indoor temperature is higher than the first set temperature range, the first water pump and the second water pump are started, and the four-way reversing valve is adjusted so that the first heat exchanger is an evaporator and the second heat exchanger is a condenser. The refrigerant in the heat pump unit absorbs heat from the first thermal insulation energy storage tank through the first heat exchanger and releases heat to the second thermal insulation energy storage tank in the second heat exchanger. The refrigerant in the first thermal insulation energy storage tank is transported to the plate heat exchanger via the second water pump. The refrigerant in the water flow window unit exchanges heat with the refrigerant in the plate heat exchanger and then returns to the water flow window unit for radiant cooling.

[0034] When the indoor temperature is lower than the first set temperature range, if there is a demand for hot water in the building, the second thermal insulation energy storage tank and the solar panel jointly supply hot water to the user end, and the municipal pipeline network replenishes water to the second thermal insulation energy storage tank.

[0035] Optionally, when the energy-saving system is a closed system and the water flow window is used for heating:

[0036] When the indoor temperature is lower than the second set temperature range, the first water pump and the second water pump are started, and the four-way reversing valve is adjusted so that the second heat exchanger is used as an evaporator and the first heat exchanger is used as a condenser. The refrigerant in the heat pump unit absorbs heat from the second thermal insulation energy storage tank through the second heat exchanger and releases heat to the first thermal insulation energy storage tank when passing through the first heat exchanger. After the refrigerant in the first thermal insulation energy storage tank absorbs heat, it is transported by the second water pump to the plate heat exchanger for heat release. The refrigerant in the water flow window unit exchanges heat with the refrigerant in the plate heat exchanger and then returns to the water flow window unit for radiant heating.

[0037] When the indoor temperature is higher than the second set temperature range, when the temperature of the first thermal insulation energy storage tank is lower than the fourth set temperature range, the auxiliary electric heater in the first thermal insulation energy storage tank is turned on; when the temperature of the first thermal insulation energy storage tank is higher than the fourth set temperature range, the third water pump is turned on to transport the hot working medium in the first thermal insulation energy storage tank to the second thermal insulation energy storage tank.

[0038] Optionally, the first set temperature interval is 23°C~26°C, the second set temperature interval is 20°C~24°C, the third set temperature interval is 10°C~20°C, and the fourth set temperature interval is 35°C~45°C.

[0039] Compared with the prior art, the above technical solution has at least the following beneficial effects:

[0040] The water flow window unit provided by the present invention has a simple structure, common materials, and is easy to install. The water flow window unit energy-saving system can intelligently adjust the operating state according to the indoor and outdoor environment and personnel needs, provide indoor radiation cooling / heating, and reduce the number of indoor cooling and heating loads; at the same time, it reduces unnecessary high-grade energy consumption, realizes coordinated regulation of indoor load quantity and quality, and effectively improves the building energy efficiency level; the control method is accurate, and can be more effectively controlled and adjusted according to various complex environments, with a wider range of application climate zones and application scenarios. The building hot water supply system can continuously provide preheated domestic water at a certain temperature to the room to meet the water needs of indoor personnel, reduce the installation area and power consumption of conventional water heaters, and achieve good energy-saving effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0042] Figure 1 is a cross-sectional view of a water flow window unit of the present invention;

[0043] Figure 2 for Figure 1 Another perspective structural diagram of;

[0044] Figure 3 It is a schematic diagram of the structure of the heat pump unit of the present invention;

[0045] Figure 4 It is a closed schematic diagram of the present invention;

[0046] Figure 5 It is an open schematic diagram of the present invention.

[0047] Marking Description:

[0048] 100-water flow window unit; 101-first glass plate; 102-cavity; 103-second glass plate; 104-filter; 105-water distributor; 106-water collector; 107-window inlet; 108-window outlet; 109-sealant; 110-support bar; 201-plate heat exchanger; 202-first inlet of plate heat exchanger; 203-first outlet of plate heat exchanger; 204-second inlet of plate heat exchanger; 205-second outlet of plate heat exchanger; 301-first heat preservation energy storage box; 302-second heat preservation energy storage box; 303-first heat exchanger; 304-second heat exchanger; 305 - auxiliary electric heater; 306 - compressor; 307 - electronic expansion valve; 308 - four-way reversing valve; 309 - first bypass pipe; 310 - second bypass pipe; 311 - water inlet of the first thermal insulation energy storage box; 312 - water outlet of the first thermal insulation energy storage box; 313 - water inlet of the second thermal insulation energy storage box; 314 - water outlet of the second thermal insulation energy storage box; 401 - municipal pipeline network; 402 - solar energy module; 403 - user end; 501 - controller; 502 - first water pump; 503 - second water pump; 504 - third water pump; 505 - fourth water pump; 506 - first temperature sensor; 507 - second temperature sensor. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one", "one" or "the" do not indicate a quantitative limitation, but indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0051] It should be noted that the terms "up", "down", "left", "right", "front", "back", etc. used in the present invention are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0052] like Figures 1 to 5 As shown, an energy-saving system for cooling and heating control of a water flow window comprises: a water flow window unit 100, a heat pump unit, a control unit and a cold and hot source supply output unit, wherein the cold and hot source supply output unit is used to supply water to the heat pump unit;

[0053] The structure of the water flow window in the water flow window unit 100 is the prior art, for example, the water flow window includes:

[0054] It is respectively composed of a first glass plate 101 and a second glass plate 103, and forms a cavity 102; a filter 104 is provided at the window inlet 107 of the water flow window; a water distributor 105 is provided at the lower part of the cavity 102, and a water collector 106 is provided at the upper part; the circulating working medium flows into the water distributor 105 through the water supply pipeline, and then flows into the cavity 102, and efficiently transfers cold or heat to the room by radiation; and then flows out through the water collector 106 and the return water pipeline.

[0055] The water flow window in this embodiment can replace indoor radiators and air conditioners when in use.

[0056] The working medium of the water channel in the water flow window can be water or nanofluid.

[0057] The control unit includes: a controller 501, a first water pump 502, a third water pump 504, a fourth water pump 505, a first temperature sensor 506 and a temperature sensor, wherein the first temperature sensor 506 is installed in the water flow window unit 100, and the second temperature sensor 507 is installed in the heat pump system. The controller 501 signals connect the first temperature sensor 506, the second temperature sensor 507, the first water pump 502, the third water pump 504, the fourth water pump 505 and the heat pump unit, and the third water pump and the fourth water pump 505 are arranged in the heat pump unit.

[0058] The heat pump unit is a prior art, and the heat pump unit follows the application of the four major refrigeration components in the Carnot cycle and the reverse Carnot cycle principles. The heat pump unit includes: a first thermal insulation energy storage box 301, a second thermal insulation energy storage box 302, a compressor 306, a four-way reversing valve 308 and an electronic expansion valve 307. The first thermal insulation energy storage box 301 is provided with a first heat exchanger 303 and an auxiliary electric heater 305, the second temperature sensor 507 is installed in the first thermal insulation energy storage box 301, the second thermal insulation energy storage box 302 is provided with a second heat exchanger 304, and the second thermal insulation energy storage box 306 is provided with a second heat exchanger 304. The box 302 is connected to the cold and heat source supply output unit, the compressor 306 is connected to the first heat exchanger 303 and the second heat exchanger 304 respectively through the four-way reversing valve 308, an electronic expansion valve 307 is arranged on the medium pipeline of the first heat exchanger 303 and the second heat exchanger 304, the third water pump 504 is arranged on the pipeline for supplying water from the first thermal insulation energy storage tank 301 to the second thermal insulation energy storage tank 302; the fourth water pump 505 is arranged on the pipeline for supplying water from the second thermal insulation energy storage tank 302 to the first thermal insulation energy storage tank 301.

[0059] The type of water flow window in this embodiment can be selected arbitrarily: the water flow window can adopt different water flow driving modes (natural buoyancy drive / forced flow driven by water pump), different heat exchangers (immersion heat exchanger, shell and tube heat exchanger), etc.; similarly, the water flowing in the water flow window can also be replaced with antifreeze solution, nanofluid, dyeing fluid and other liquids according to the use occasion and needs. Figure 1 and Figure 2 It is a preferred water flow window design, which adopts forced flow driven by a water pump and a heat exchanger-free design.

[0060] The cold and hot source supply output unit of this system includes: a municipal pipeline network 401, a solar panel 402 and a user end 403; the municipal pipeline network 401 is used to supply cold water to the heat pump unit; the solar panel 402 is used to supply hot water to the heat pump component; the user end 403 is used to receive the hot water output by the heat pump unit, and the solar panel 402 supports water delivery to the user end 403; the low-grade heat source is the solar panel 402, which is used to provide heat; the low-grade cold source is the water supply of the municipal pipeline network 401, which is used to provide cooling.

[0061] The water inlet 313 of the second thermal insulation energy storage box is connected to the municipal pipe network 401, and the water outlet 314 of the second thermal insulation energy storage box is connected to the user end 403;

[0062] Wherein, the solar energy component 402 is a solar thermal component, a solar photovoltaic component or a solar photovoltaic thermal component;

[0063] Among them, the four-way reversing valve 308 adjusts the direction according to the cooling and heating needs and the set first set temperature range, second set temperature range, third set temperature range and fourth set temperature range. The first set temperature range is 23℃~26℃, the second set temperature range is 20℃~24℃, the third set temperature range is 10℃~20℃, and the fourth set temperature range is 35℃~45℃.

[0064] When the energy-saving system is an open system, the heat pump unit is connected to the water path of the water flow window unit 100 through the first water pump 502, the third water pump 504 is arranged inside the heat pump, and the heat pump unit outputs water meeting the preset temperature to the water flow window unit 100; the water inlet 311 of the first thermal insulation energy storage box is connected to the window outlet 108 of the water flow window unit 100, and the water outlet 312 of the first thermal insulation energy storage box is connected to the window inlet 107 of the water flow window unit 100, and a filter 104 is provided at the window inlet 107 of the water flow window unit 100.

[0065] When the energy-saving system is an open system and the water window provides cooling:

[0066] When the indoor temperature is higher than the first set temperature range, the first water pump 502 is started, and the four-way reversing valve 308 is adjusted so that the first heat exchanger 303 is an evaporator and the second heat exchanger 304 is a condenser. The refrigerant of the heat pump unit absorbs heat from the first thermal insulation energy storage tank 301 in the first heat exchanger 303 and releases heat to the second thermal insulation energy storage tank 302 when passing through the second heat exchanger 304. The refrigerant absorbed by heat in the first thermal insulation energy storage tank 301 is transported to the water flow window unit 100 via the first water pump 502 for radiant cooling.

[0067] When the indoor temperature is lower than the first set temperature range, if the user end 403 has a demand for hot water, the second thermal insulation energy storage tank 302 and the solar panel 402 jointly supply hot water to the user end 403. At the same time, the municipal pipeline 401 replenishes water to the second thermal insulation energy storage tank 302.

[0068] When the energy-saving system is an open system and the water flow window is used for heating:

[0069] When the indoor temperature is lower than the second set temperature range, the first water pump 502 is started, and the four-way reversing valve 308 is adjusted so that the second heat exchanger 304 is an evaporator and the first heat exchanger 303 is a condenser. The refrigerant of the heat pump unit absorbs heat from the second thermal insulation energy storage tank 302 through the second heat exchanger 304 and releases heat to the first thermal insulation energy storage tank 301 when passing through the first heat exchanger 303. The first water pump 502 transports the refrigerant that absorbs heat in the first thermal insulation energy storage tank 301 to the water flow window unit 100 for radiant heating.

[0070] When the indoor temperature is higher than the second set temperature range, if the temperature of the first thermal insulation energy storage tank 301 is lower than the fourth set temperature range, the auxiliary electric heater 305 in the first thermal insulation energy storage tank 301 is turned on; if the temperature of the first thermal insulation energy storage tank 301 is higher than the fourth set temperature range, the fourth water pump 505 is turned on to introduce the hot water supplied by the solar panel 402 to the second thermal insulation energy storage tank 302 into the first thermal insulation energy storage tank 301.

[0071] The specific principle is as follows: for an open system, in the cooling season, when the indoor temperature is higher than the first set temperature range, the first water pump 502 is started. By adjusting the four-way reversing valve 308, the first heat exchanger 303 of the heat pump is an evaporator, and the second heat exchanger 304 is a condenser. The refrigerant evaporates through the throttle valve under reduced pressure, absorbs heat from the first thermal insulation energy storage tank 301 in the first heat exchanger 303, and then the compressor 306 compresses the refrigerant, and releases heat to the second thermal insulation energy storage tank 302 when passing through the second heat exchanger 304. The refrigerant in the first thermal insulation energy storage tank 301 is transported to the adaptive radiation window energy-saving system through the circulating first water pump 502 to radiate cooling indoors. When the indoor temperature is lower than the first set temperature range, the speed of the water pump and the circulating water pump is reduced or stopped. In addition, when there is a demand for hot water in the building, the second thermal insulation energy storage tank 302 and the solar thermal component or solar photovoltaic component or solar photovoltaic thermal component jointly supply hot water to the user. At the same time, the municipal pipe network 401 is connected to the second thermal insulation energy storage tank 302 to replenish water into the second thermal insulation energy storage tank 302.

[0072] For an open system, in the heating season, when the indoor temperature is lower than the second set temperature range, the first water pump 502 is turned on, and the second heat exchanger 304 of the heat pump is adjusted to be an evaporator and the first heat exchanger 303 of the heat pump is adjusted to be a condenser by adjusting the four-way reversing valve 308. The refrigerant evaporates after being decompressed by the throttle valve, absorbs heat from the second thermal insulation energy storage tank 302 through the second heat exchanger 304, and then compresses the refrigerant vapor through the compressor 306, and releases heat to the first thermal insulation energy storage tank 301 when passing through the first heat exchanger 303. Finally, the hot water in the first thermal insulation energy storage tank 301 is transported to the adaptive radiation window energy-saving system through the first water pump 502 to radiate heat to the indoor room. When the indoor temperature is higher than the second set temperature range, the speed of the first water pump 502 is reduced or stopped. When the temperature of the first thermal insulation energy storage tank 301 is lower than the fourth set temperature range, the auxiliary electric heater 305 in the first thermal insulation energy storage tank 301 is turned on; when the temperature of the first thermal insulation energy storage tank 301 is higher than the fourth set temperature range, the valve on the second bypass pipe 310 (the first bypass pipe 309 is provided with a third water pump 504, and the second bypass pipe 310 is provided with a fourth water pump 505) is opened and adjusted to introduce low-temperature hot water generated in part of the solar thermal assembly or the solar photovoltaic thermal assembly or the solar photovoltaic thermal assembly into the first thermal insulation energy storage tank 301 until the heating demand in the fourth set temperature range is met.

[0073] When the energy-saving system is a closed system, the energy-saving system also includes: a heat exchange unit and a second water pump 503, the controller 501 signal is connected to the second water pump 503, the heat exchange unit is used to adjust the water path temperature in the water flow window unit 100 so that the water path temperature in the water flow window unit 100 reaches a preset temperature, the heat exchange unit is connected to the heat pump system, the first water pump 502 is used to transfer the water in the heat exchange unit to the water flow window unit 100, and the second water pump 503 is used to transport the working medium in the heat pump To the heat exchange unit and exchange heat with the water path in the water flow window unit 100. The heat exchange unit is a plate heat exchanger 201. The water inlet 311 of the first thermal insulation energy storage box is connected to the second outlet 205 of the plate heat exchanger. The water outlet 312 of the first thermal insulation energy storage box is connected to the second inlet 204 of the plate heat exchanger. The first inlet 202 of the plate heat exchanger is connected to the window outlet 108 of the water flow window unit 100. The first outlet 203 of the plate heat exchanger is connected to the window inlet 107 of the water flow window unit 100.

[0074] The first heat pump is disposed on a pipeline connecting the first outlet 203 of the plate heat exchanger and the window inlet 107 of the water flow window unit 100 .

[0075] When the energy-saving system is a closed system and the water window provides cooling:

[0076] When the indoor temperature is higher than the first set temperature range, the first water pump 502 and the second water pump 503 are started, and the four-way reversing valve 308 is adjusted so that the first heat exchanger 303 is an evaporator and the second heat exchanger 304 is a condenser. The refrigerant in the heat pump unit absorbs heat from the first thermal insulation energy storage tank 301 through the first heat exchanger 303 and releases heat to the second thermal insulation energy storage tank 302 in the second heat exchanger 304. The refrigerant in the first thermal insulation energy storage tank 301 that has absorbed heat is transported to the plate heat exchanger 201 via the second water pump 503. The refrigerant in the water flow window unit 100 exchanges heat with the refrigerant that has absorbed heat in the plate heat exchanger 201 and then returns to the water flow window unit 100 for radiant cooling.

[0077] When the indoor temperature is lower than the first set temperature range, if there is a demand for hot water in the building, the second thermal insulation energy storage tank 302 and the solar panel 402 jointly supply hot water to the user end 403, and the municipal pipe network 401 replenishes water to the second thermal insulation energy storage tank 302.

[0078] When the energy-saving system is a closed system and the water flow window is used for heating:

[0079] When the indoor temperature is lower than the second set temperature range, the first water pump 502 and the second water pump 503 are started, and the four-way reversing valve 308 is adjusted so that the second heat exchanger 304 is used as an evaporator and the first heat exchanger 303 is used as a condenser. The refrigerant in the heat pump unit absorbs heat from the second thermal insulation energy storage tank 302 through the second heat exchanger 304 and releases heat to the first thermal insulation energy storage tank 301 when passing through the first heat exchanger 303. After the refrigerant in the first thermal insulation energy storage tank 301 absorbs heat, it is transported to the plate heat exchanger 201 by the second water pump 503 for heat release. The refrigerant in the water flow window unit 100 exchanges heat with the refrigerant in the plate heat exchanger 201 and then returns to the water flow window unit 100 for radiant heating.

[0080] When the indoor temperature is higher than the second set temperature range, when the temperature of the first thermal insulation energy storage tank 301 is lower than the fourth set temperature range, the auxiliary electric heater 305 in the first thermal insulation energy storage tank 301 is turned on; when the temperature of the first thermal insulation energy storage tank 301 is higher than the fourth set temperature range, the third water pump 504 is turned on to transport the hot working medium in the first thermal insulation energy storage tank 301 to the second thermal insulation energy storage tank 302.

[0081] The specific principles are:

[0082] For a closed system, in the cooling season, when the indoor temperature is higher than the first set temperature range, the first water pump 502 and the second water pump 503 are started. By adjusting the four-way reversing valve 308, the first heat exchanger 303 in the heat pump unit is used as an evaporator, and the second heat exchanger 304 is used as a condenser. The refrigerant evaporates after being decompressed by the throttle valve, absorbs heat from the first thermal insulation energy storage tank 301 through the first heat exchanger 303, and then compresses the refrigerant vapor through the compressor 306, and releases heat to the second thermal insulation energy storage tank 302 when passing through the second heat exchanger 304. The low-temperature working medium in the first thermal insulation energy storage tank 301 is transported to the plate heat exchanger 201 via the second water pump 503, and exchanges heat with the circulating working medium of the adaptive radiation window. Finally, the circulating working medium is transported to the adaptive radiation window energy-saving system via the first water pump 502 to radiate cooling to the room. When the indoor temperature is lower than the first set temperature range, the speed of the first water pump 502 and the second water pump 503 is reduced or stopped to always maintain indoor thermal comfort. In addition, when there is a demand for hot water in the building, the second thermal insulation energy storage tank 302 and the solar thermal component or the solar photovoltaic thermal component or the solar photovoltaic thermal component jointly supply hot water to the user. At the same time, the municipal pipe network 401 is connected to the second thermal insulation energy storage tank 302 to replenish water in the second thermal insulation energy storage tank 302.

[0083] For a closed system, in the heating season, when the indoor temperature is lower than the second set temperature range, the first water pump 502 and the second water pump 503 are started. By adjusting the four-way reversing valve 308, the second heat exchanger 304 in the heat pump unit is used as an evaporator and the first heat exchanger 303 is used as a condenser. The refrigerant evaporates after being decompressed by the throttle valve, absorbs heat from the second thermal insulation energy storage tank 302 through the second heat exchanger 304, and then the refrigerant vapor is compressed by the compressor 306, and releases heat to the first thermal insulation energy storage tank 301 when passing through the first heat exchanger 303. The water in the first thermal insulation energy storage tank 301 obtains heat and is then transported to the circulating working medium in the plate heat exchanger 201 through the second water pump 503, which releases heat to the adaptive radiation window. Finally, the circulating working medium is transported to the adaptive radiation window energy-saving system through the first water pump 502 to radiate heat indoors. When the indoor temperature is higher than the second set temperature range, the speed of the first water pump 502 and the second water pump 503 is reduced or stopped. When the temperature of the first thermal insulation energy storage tank 301 is lower than the fourth set temperature range, the auxiliary electric heater 305 in the first thermal insulation energy storage tank 301 is turned on; when the temperature of the first thermal insulation energy storage tank 301 is higher than the fourth set temperature range, the valve on the first bypass pipe 309 is opened and adjusted (the first bypass pipe 309 is provided with a third water pump 504, and the second bypass pipe 310 is provided with a fourth water pump 505), and part of the hot water is transported to the second thermal insulation energy storage tank 302 and circulated until the heating demand in the fourth set temperature range is met.

[0084] In a closed system, the working fluid in the water flow window keeps circulating, and its route is: water flow window-plate heat exchanger 201-water flow window-plate heat exchanger 201; in an open system, the working fluid in the water flow window flows into the first thermal insulation energy storage box 301, and the working fluid in the first thermal insulation energy storage box 301 is connected to the municipal pipe network 401 through the second thermal insulation energy storage box 302. The working fluid in the water flow window in the open system is naturally replaced during the circulation, but the closed system will not. When using this system, you can judge whether to use a closed system or an open system according to the actual scene requirements. The closed system is more energy-efficient, and the open system can naturally replace the working fluid in the water flow window. In addition, the flowing working fluid inside the closed system is a liquid with higher heat transfer efficiency, such as antifreeze or nanofluid, which is suitable for colder areas and seasons and can transfer heat more efficiently. At the same time, the flowing working fluid has no material exchange with the outside world, which reduces the maintenance requirements and is suitable for projects with high maintenance costs and difficulty. The energy-saving window system in the closed system is an independent system, which is more conducive to fault isolation. The open system can directly use the flowing water of the entire system as the flowing working fluid, and eliminates the heat exchanger. It adopts the method of direct heat exchange with the flowing working fluid to improve the heat exchange efficiency. The system structure is simple and the cost is low, which is suitable for occasions with limited engineering costs.

[0085] The water flow window unit 100 provided by the present invention has a simple structure, common materials, and is easy to install. The energy-saving system of the water flow window unit 100 can intelligently adjust the operating state according to the indoor and outdoor environment and personnel needs, provide indoor radiation cooling / heating, and reduce the number of indoor cooling and heating loads; at the same time, it reduces unnecessary high-grade energy consumption, realizes coordinated regulation of indoor load quantity and quality, and effectively improves the building energy efficiency level; the control method is accurate, and can be more effectively controlled and adjusted according to various complex environments, with a wider range of application climate zones and application scenarios. The building hot water supply system can continuously provide preheated domestic water at a certain temperature to the room to meet the water needs of indoor personnel, reduce the installation area and power consumption of conventional water heaters, and achieve good energy-saving effects.

[0086] The following points need to be explained:

[0087] (1) The drawings of the embodiments of the present invention only involve structures related to the embodiments of the present invention. Other structures may refer to conventional designs.

[0088] (2) For the sake of clarity, in the drawings used to describe the embodiments of the present invention, the thickness of layers or regions is exaggerated or reduced, that is, these drawings are not drawn according to the actual scale. It is understood that when an element such as a layer, film, region or substrate is referred to as being "on" or "under" another element, the element may be "directly" "on" or "under" the other element or there may be intermediate elements.

[0089] (3) In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to obtain new embodiments.

[0090] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. The protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. An energy-saving system for cooling and heating control of water flow windows, characterized in that: include: A water flow window unit, a heat pump unit, a control unit and a cold and hot source supply output unit, wherein the cold and hot source supply output unit is used to supply water to the heat pump unit; The control unit comprises: a controller, a first water pump, a third water pump, a fourth water pump, a first temperature sensor and a temperature sensor, wherein the first temperature sensor is installed in the water flow window unit, the second temperature sensor is installed in the heat pump system, the controller signal connects the first temperature sensor, the second temperature sensor, the first water pump, the third water pump, the fourth water pump and the heat pump unit, and the third water pump and the fourth water pump are arranged in the heat pump unit; When the energy-saving system is an open system, the heat pump unit is connected to the water path of the water flow window unit through the first water pump, the third water pump is arranged inside the heat pump, and the heat pump unit outputs water meeting a preset temperature to the water flow window unit; When the energy-saving system is a closed system, the energy-saving system also includes: a heat exchange unit and a second water pump, the controller signal is connected to the second water pump, the heat exchange unit is used to adjust the water path temperature in the water flow window unit so that the water path temperature in the water flow window unit reaches a preset temperature, the heat exchange unit is connected to the heat pump system, the first water pump is used to transfer the water in the heat exchange unit to the water flow window unit, and the second water pump is used to transport the working fluid in the heat pump to the heat exchange unit and exchange heat with the water path in the water flow window unit.

2. The energy-saving system for cooling and heating control of water flow windows according to claim 1 is characterized in that: The heat pump unit comprises: a first thermal insulation energy storage box, wherein a first heat exchanger and an auxiliary electric heater are arranged in the first thermal insulation energy storage box, and the second temperature sensor is installed in the first thermal insulation energy storage box; A second thermal insulation energy storage box, wherein a second heat exchanger is arranged in the second thermal insulation energy storage box, and the second thermal insulation energy storage box is connected to the cold and heat source supply output unit; A compressor, a four-way reversing valve and an electronic expansion valve, wherein the compressor is respectively connected to the first heat exchanger and the second heat exchanger through the four-way reversing valve, and an electronic expansion valve is arranged on the medium pipelines of the first heat exchanger and the second heat exchanger; The third water pump is arranged on a pipeline supplying water from the first thermal insulation energy storage tank to the second thermal insulation energy storage tank; The fourth water pump is arranged on the pipeline through which the second thermal insulation energy storage tank supplies water to the first thermal insulation energy storage tank.

3. The energy-saving system for cooling and heating control of water flow windows according to claim 2 is characterized in that: When the energy-saving system is an open system, the water inlet of the first thermal insulation energy storage box is connected to the window outlet of the water flow window unit, the water outlet of the first thermal insulation energy storage box is connected to the window inlet of the water flow window unit, and a filter is provided at the window inlet of the water flow window unit.

4. The energy-saving system for cooling and heating control of water flow windows according to claim 2 is characterized in that: When the energy-saving system is a closed system, the heat exchange unit is a plate heat exchanger, the water inlet of the first thermal insulation energy storage box is connected to the second outlet of the plate heat exchanger, the water outlet of the first thermal insulation energy storage box is connected to the second inlet of the plate heat exchanger, the first inlet of the plate heat exchanger is connected to the window outlet of the water flow window unit, and the first outlet of the plate heat exchanger is connected to the window inlet of the water flow window unit; The first heat pump is disposed on a pipeline connecting the first outlet of the plate heat exchanger and the window inlet of the water flow window unit.

5. The energy-saving system for cooling and heating control of water flow windows according to claim 2 is characterized in that: The cold and hot source supply output unit also includes: Municipal pipe network, solar panels and user end; The municipal pipe network is used to supply cold water to the heat pump unit; The solar energy component is used to supply hot water to the heat pump component; The user end is used to receive hot water output by the heat pump unit, and the solar energy component supports water delivery to the user end; Wherein, the solar energy component is a solar thermal component, a solar photovoltaic component or a solar photovoltaic thermal component; Among them, the four-way reversing valve adjusts the direction according to the cooling and heating needs and the set first set temperature range, second set temperature range, third set temperature range and fourth set temperature range.

6. The energy-saving system for cooling and heating control of water flow windows according to claim 5 is characterized in that: When the energy-saving system is an open system and the water window performs radiant cooling: When the indoor temperature is higher than the first set temperature range, the first water pump is started, and the four-way reversing valve is adjusted so that the first heat exchanger is an evaporator and the second heat exchanger is a condenser. The refrigerant of the heat pump unit absorbs heat from the first thermal insulation energy storage tank in the first heat exchanger and releases heat to the second thermal insulation energy storage tank when passing through the second heat exchanger. The refrigerant absorbed by heat in the first thermal insulation energy storage tank is transported to the water flow window unit via the first water pump for radiant cooling. When the indoor temperature is lower than the first set temperature range, if the user has a demand for hot water, the second thermal insulation energy storage tank and the solar panel jointly supply hot water to the user. At the same time, the municipal pipeline network replenishes water to the second thermal insulation energy storage tank.

7. The energy-saving system for cooling and heating control of water flow windows according to claim 6 is characterized in that: When the energy-saving system is an open system and the water flow window performs radiant heating: When the indoor temperature is lower than the second set temperature range, the first water pump is started, the four-way reversing valve is adjusted so that the second heat exchanger is an evaporator and the first heat exchanger is a condenser, the refrigerant of the heat pump unit absorbs heat from the second thermal insulation energy storage tank through the second heat exchanger and releases heat to the first thermal insulation energy storage tank when passing through the first heat exchanger, and the first water pump transports the refrigerant that absorbs heat in the first thermal insulation energy storage tank to the water flow window unit for radiant heating; When the indoor temperature is higher than the second set temperature range, if the temperature of the first thermal insulation energy storage tank is lower than the fourth set temperature range, the auxiliary electric heater in the first thermal insulation energy storage tank is turned on; if the temperature of the first thermal insulation energy storage tank is higher than the fourth set temperature range, the fourth water pump is turned on to introduce the hot water supplied by the solar panel to the second thermal insulation energy storage tank into the first thermal insulation energy storage tank.

8. The energy-saving system for cooling and heating control of water flow windows according to claim 5, characterized in that: When the energy-saving system is a closed system and the water window provides cooling: When the indoor temperature is higher than the first set temperature range, the first water pump and the second water pump are started, and the four-way reversing valve is adjusted so that the first heat exchanger is an evaporator and the second heat exchanger is a condenser. The refrigerant in the heat pump unit absorbs heat from the first thermal insulation energy storage tank through the first heat exchanger and releases heat to the second thermal insulation energy storage tank in the second heat exchanger. The refrigerant in the first thermal insulation energy storage tank is transported to the plate heat exchanger via the second water pump. The refrigerant in the water flow window unit exchanges heat with the refrigerant in the plate heat exchanger and then returns to the water flow window unit for radiant cooling. When the indoor temperature is lower than the first set temperature range, if there is a demand for hot water in the building, the second thermal insulation energy storage tank and the solar panel jointly supply hot water to the user end, and the municipal pipeline network replenishes water to the second thermal insulation energy storage tank.

9. The energy-saving system for cooling and heating control of water flow windows according to claim 8, characterized in that: When the energy-saving system is a closed system and the water flow window is used for heating: When the indoor temperature is lower than the second set temperature range, the first water pump and the second water pump are started, and the four-way reversing valve is adjusted so that the second heat exchanger is used as an evaporator and the first heat exchanger is used as a condenser. The refrigerant in the heat pump unit absorbs heat from the second thermal insulation energy storage tank through the second heat exchanger and releases heat to the first thermal insulation energy storage tank when passing through the first heat exchanger. After the refrigerant in the first thermal insulation energy storage tank absorbs heat, it is transported by the second water pump to the plate heat exchanger for heat release. The refrigerant in the water flow window unit exchanges heat with the refrigerant in the plate heat exchanger and then returns to the water flow window unit for radiant heating. When the indoor temperature is higher than the second set temperature range, when the temperature of the first thermal insulation energy storage tank is lower than the fourth set temperature range, the auxiliary electric heater in the first thermal insulation energy storage tank is turned on; when the temperature of the first thermal insulation energy storage tank is higher than the fourth set temperature range, the third water pump is turned on to transport the hot working medium in the first thermal insulation energy storage tank to the second thermal insulation energy storage tank.

10. The energy-saving system for cooling and heating control of water flow windows according to claim 5, characterized in that: The first set temperature range is 23°C~26°C, the second set temperature range is 20°C~24°C, the third set temperature range is 10°C~20°C, and the fourth set temperature range is 35°C~45°C.

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