An air conditioning energy-saving heat exchange system

Abstract

The present application relates to an air-conditioning energy-saving heat exchange system, and relates to the technical field of air-conditioning systems, the system comprising: a first air-conditioning unit, a first liquid heat exchange tube G1 connected to a first liquid circulation pipeline, a first refrigerant heat exchange tube G2 and the first liquid heat exchange tube G1 are closely arranged; a second air-conditioning unit, a liquid storage tank and / or a first liquid heat exchange plate, wherein the liquid storage tank is connected to the first liquid circulation pipeline, and the first liquid heat exchange plate is connected to the first liquid circulation pipeline. The liquid flow heat transfer and energy storage device that can be added in the embodiment of the present application can effectively improve the electric energy and heat energy utilization efficiency of the air-conditioning system, improve the defrosting effect of the outdoor heat exchanger, enhance the temperature adjustment ability and application range of the air-conditioning system, add indoor liquid heat exchange plates to adjust the indoor temperature, and combine with the original air-conditioning fan operation to greatly improve the user experience.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning systems, and in particular to an air conditioning energy-saving heat exchange system. Background Art

[0002] Air conditioners are a very commonly used household appliance in modern families. As the call for protecting the environment and saving energy becomes increasingly strong, how to save air conditioner energy consumption has also become a topic.

[0003] In the existing relevant technical solutions, the energy saving of air conditioning is generally achieved by using variable frequency air conditioning or reducing the use time of air conditioning, thereby reducing energy consumption. However, for areas where air conditioning is needed all year round, it cannot achieve a good energy-saving effect. In addition, during the use of air conditioning, the heat energy of the air conditioning heat exchanger is not well utilized, which further leads to a waste of air conditioning energy and needs to be solved. Summary of the invention

[0004] In order to solve or partially solve the problems existing in the related technology, the present application provides an air-conditioning energy-saving heat exchange system. The added liquid flow heat transfer and energy storage device can effectively improve the electric energy and thermal energy utilization efficiency of the air-conditioning system, increase the indoor liquid heat exchange plate, and combine with the original air-conditioning fan to greatly improve the user experience.

[0005] The present application provides an air conditioning energy-saving heat exchange system, the system comprising:

[0006] A first air conditioning unit, the first air conditioning unit comprising a first refrigerant heat exchanger, a high-pressure end component and a low-pressure end component connected to the first refrigerant heat exchanger, and a first liquid heat exchange tube G1 connected to a first liquid circulation pipeline, wherein the first refrigerant heat exchange tube G2 in the first refrigerant heat exchanger and the first liquid heat exchange tube G1 are closely arranged;

[0007] a second air conditioning unit, the second air conditioning unit comprising a second refrigerant heat exchanger, a high-pressure end component and a low-pressure end component connected to the second refrigerant heat exchanger;

[0008] A liquid storage tank and / or a first liquid heat exchange plate, wherein the liquid storage tank is connected to a first liquid circulation pipeline, and the first liquid heat exchange plate is connected to the first liquid circulation pipeline.

[0009] As a possible implementation of the present application, in this implementation, the system further includes:

[0010] A second liquid circulation pipeline and a second liquid heat exchange tube G3 connected to the second liquid circulation pipeline, wherein the second liquid heat exchange tube G3 is closely arranged with the second refrigerant heat exchange tube G4 in the second refrigerant heat exchanger, and wherein the second liquid circulation pipeline is connected to the liquid storage tank.

[0011] As a possible implementation of the present application, in this implementation, the system further includes:

[0012] A second liquid heat exchange plate, wherein the second liquid heat exchange plate is connected to the second liquid circulation pipe.

[0013] As a possible implementation of the present application, in this implementation, the first liquid circulation pipeline includes:

[0014] An electromagnetic liquid valve F2 is connected to the first end of the first refrigerant heat exchange tube G2, the other end of the electromagnetic liquid valve F2 is connected to the liquid storage tank and the water outlet end of the one-way liquid valve D3, the water inlet end of the one-way liquid valve D3 is connected to one end of the electric liquid pump M3, the other end of the electric liquid pump M3 is connected to one end of the electric liquid pump M2 and the first heat exchange plate, the other end of the electric liquid pump M2 is connected to the water inlet end of the one-way liquid valve D2, the water outlet end of the one-way liquid valve D2 is connected to one end of the normally closed air valve K1 and the water outlet end of the one-way liquid valve D1, the other end of the normally closed air valve K1 is connected to the second end of the first refrigerant heat exchange tube G2, and the water inlet end of the one-way liquid valve D1 is connected to the liquid storage tank.

[0015] As a possible implementation of the present application, in this implementation, the second liquid circulation pipeline includes:

[0016] A normally closed air valve K2 is connected to one end of the second refrigerant heat exchange tube G4, and the other end of the normally closed air valve K2 is connected to one end of the resistive heater R1, and the other end of the resistive heater R1 is connected to one end of the temperature sensor T1, and the other end of the temperature sensor T1 is connected to the water outlet ends of the one-way liquid valves D4 and D5, and the water inlet end of the one-way liquid valve D4 is connected to the liquid storage tank, and the water inlet end of the one-way liquid valve D5 is connected to one end of the electric liquid pump M5, and the other end of the electric liquid pump M5 is connected to one end of the electric liquid pump M6 and the second liquid heat exchange plate, and the other end of the electric liquid pump M6 is connected to the water inlet of the one-way liquid valve D6, and the water outlet of the one-way liquid valve D6 is connected to the liquid storage tank and one end of the electromagnetic liquid valve F4, and the other end of the electromagnetic liquid valve F4 is connected to the other end of the second refrigerant heat exchange tube and one end of the electromagnetic liquid valve F3, and the other end of the electromagnetic liquid valve F3 is connected to the second liquid heat exchange plate.

[0017] The technical solution provided by the present application may include the following beneficial effects: the embodiment of the present application adds a set of liquid flow heat transfer and energy storage devices on the basis of the existing variable frequency air conditioner; adds a liquid heat exchange plate indoors for heat transfer; and adds liquid heat transfer assistance to the outdoor unit defrosting; these added liquid flow heat transfer, heat exchange, energy storage devices, etc. can be used individually, in combination or combined. The added liquid flow heat transfer and energy storage devices can effectively improve the electric energy and thermal energy utilization efficiency of the air-conditioning system, increase the indoor liquid heat exchange plate, and combine the original air-conditioning heat exchange plate and fan to greatly improve the user experience. The outdoor unit defrosting adds liquid heat transfer assistance, greatly improves the air-conditioning defrosting efficiency, increases the applicable range of air-conditioning temperature, and can effectively save energy.

[0018] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other objects, features and advantages of the present application will become more apparent by describing in more detail exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0020] Figure 1 It is a structural schematic diagram of an air-conditioning energy-saving heat exchange system shown in an embodiment of the present application. DETAILED DESCRIPTION

[0021] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0022] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms of "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0023] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0024] In the existing relevant technical solutions, the energy saving of air conditioning is generally achieved by using variable frequency air conditioning or reducing the use time of air conditioning, thereby reducing energy consumption. However, for areas where air conditioning is needed all year round, it cannot achieve a good energy-saving effect. In addition, during the use of air conditioning, the heat energy of the air conditioning heat exchanger is not well utilized, which further leads to a waste of air conditioning energy and needs to be solved.

[0025] In response to the above problems, the embodiment of the present application provides an air-conditioning energy-saving heat exchange system, which adds a set of liquid flow heat transfer and energy storage devices on the basis of the existing variable frequency air conditioner; adds a liquid heat exchange plate indoors for heat transfer; and adds liquid heat transfer assistance for outdoor unit defrosting; these added liquid flow heat transfer, heat exchange, energy storage devices, etc. can be used individually, in combination or combined. The added liquid flow heat transfer and energy storage devices can effectively improve the electric energy and thermal energy utilization efficiency of the air-conditioning system, increase the indoor liquid heat exchange plate, and combine the original air-conditioning heat exchange plate and fan to greatly improve the user experience. The outdoor unit defrosting adds liquid heat transfer assistance, which greatly improves the air-conditioning defrosting efficiency, increases the applicable range of air-conditioning temperature, and can effectively save energy.

[0026] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0027] Figure 1 An air conditioning energy-saving heat exchange system is shown in an embodiment of the present application.

[0028] See also Figure 1 The air conditioning energy-saving heat exchange system comprises a first air conditioning unit, the first air conditioning unit comprises a first refrigerant heat exchanger, a high-pressure end component and a low-pressure end component connected to the first refrigerant heat exchanger, and a first liquid heat exchange tube G1 connected to a first liquid circulation pipeline, wherein the first refrigerant heat exchange tube G2 in the first refrigerant heat exchanger and the first liquid heat exchange tube G1 are closely arranged;

[0029] a second air conditioning unit, the second air conditioning unit comprising a second refrigerant heat exchanger, a high-pressure end component and a low-pressure end component connected to the second refrigerant heat exchanger;

[0030] A liquid storage tank and / or a first liquid heat exchange plate, wherein the liquid storage tank is connected to a first liquid circulation pipeline, and the first liquid heat exchange plate is connected to the first liquid circulation pipeline.

[0031] A second liquid circulation pipeline and a second liquid heat exchange tube G3 connected to the second liquid circulation pipeline, wherein the second liquid heat exchange tube G3 is closely arranged with the second refrigerant heat exchange tube G4 in the second refrigerant heat exchanger, and wherein the second liquid circulation pipeline is connected to the liquid storage tank.

[0032] A second liquid heat exchange plate, wherein the second liquid heat exchange plate is connected to the second liquid circulation pipe.

[0033] The thermal conductivity of the first liquid heat exchange pipe and the second liquid heat exchange pipe is greater than a preset value.

[0034] The first liquid circulation pipeline includes: an electromagnetic liquid valve F2 connected to the first end of the first refrigerant heat exchange tube G2, the other end of the electromagnetic liquid valve F2 is connected to the liquid storage tank and the water outlet end of the one-way liquid valve D3, the water inlet end of the one-way liquid valve D3 is connected to one end of the electric liquid pump M3, the other end of the electric liquid pump M3 is connected to one end of the electric liquid pump M2 and the first heat exchange plate, the other end of the electric liquid pump M2 is connected to the water inlet end of the one-way liquid valve D2, the water outlet end of the one-way liquid valve D2 is connected to one end of the normally closed air valve K1 and the water outlet end of the one-way liquid valve D1, the other end of the normally closed air valve K1 is connected to the second end of the first refrigerant heat exchange tube G2, and the water inlet end of the one-way liquid valve D1 is connected to the liquid storage tank.

[0035] The second liquid circulation pipeline includes: a normally closed air valve K2 connected to one end of the second refrigerant heat exchange tube G4, the other end of the normally closed air valve K2 is connected to one end of the resistive heater R1, the other end of the resistive heater R1 is connected to one end of the temperature sensor T1, the other end of the temperature sensor T1 is connected to the water outlet ends of the one-way liquid valves D4 and D5, the water inlet end of the one-way liquid valve D4 is connected to the liquid storage tank, the water inlet end of the one-way liquid valve D5 is connected to one end of the electric liquid pump M5, the other end of the electric liquid pump M5 is connected to one end of the electric liquid pump M6 and the second liquid heat exchange plate, the other end of the electric liquid pump M6 is connected to the water inlet of the one-way liquid valve D6, the water outlet of the one-way liquid valve D6 is connected to the liquid storage tank and one end of the electromagnetic liquid valve F4, the other end of the electromagnetic liquid valve F4 is connected to the other end of the second refrigerant heat exchange tube and one end of the electromagnetic liquid valve F3, and the other end of the electromagnetic liquid valve F3 is connected to the second liquid heat exchange plate.

[0036] As a possible implementation method, for the convenience of explanation, the first air conditioning unit can be used as an indoor unit, and the second air conditioning unit can be used as an outdoor unit. Since the heat exchange efficiency of flowing liquid is higher than that of flowing air, in a set of liquid flow heat transfer devices added to the inner and outer units of the air conditioner, G1 / G2 and G3 / G4 are in close contact. In addition to exchanging heat energy with the original heat exchange device, the refrigerant in G1 and G3 also exchanges heat with the liquid flowing in G2 and G4, thereby improving the heat exchange efficiency of the original refrigerant metal pipe, thereby improving the efficiency of the air conditioner. Since the specific gravity of hot air is lower than that of cold air, the original air conditioner considers the cooling mode, and most of the indoor units are installed in a higher place in the room. In the indoor heating mode, the hot air prepared by the air conditioner is gathered in the upper part of the room, resulting in uneven temperature in the room and poor human comfort. After adding the indoor liquid heat exchanger, the liquid heat exchanger can be installed at the bottom of the room to improve the uneven temperature in the room caused by the original air conditioner and improve human comfort. The energy discharged to the outside in the original air conditioner can be recovered through the liquid flow heat transfer and heat exchange device for use in other occasions, thereby achieving the purpose of comprehensive energy saving. For example, when the indoor unit of the air conditioner is in cooling mode, the outdoor unit of the air conditioner is in heating mode. The originally discharged heat energy can be transferred to the liquid storage tank (which can be a water tank) through the liquid (such as water) heat exchange and heat transfer device of the outdoor unit of the air conditioner, and the hot water is used for family use; the air conditioner can automatically select the best working time of the day (such as the best external working temperature), start the machine to cool or heat in advance, collect energy into the liquid storage tank for storage when needed, and achieve energy saving. When the outdoor unit of the air conditioner needs to be defrosted, the hot liquid prepared in advance or at that time is used, which shortens the defrosting time and improves the defrosting efficiency, thereby achieving energy saving and improving air The purpose of adjusting the applicable range of temperature; when the outdoor temperature is below zero and the air-conditioning indoor unit is heating, the operating temperature of the air-conditioning outdoor unit is below zero. Because of the condensed water of the air-conditioning, the air-conditioning outdoor unit will frost, resulting in a significant reduction in the heat exchange efficiency of the air-conditioning outdoor unit. After adding the outdoor liquid heat exchanger, if antifreeze is injected into the outdoor liquid heat exchanger, and at the same time, a mechanical defrosting function is added to the surface of the outdoor liquid heat exchanger (such as adding movable scrapers, brushes, etc. to the surface of the outdoor liquid heat exchanger), the air-conditioning compressor can be guaranteed to work continuously when the outdoor temperature is below zero in winter, thereby greatly improving the heat exchange efficiency of the air-conditioning and increasing the applicable range of the air-conditioning temperature.

[0037] For the convenience of explanation, the air conditioning energy-saving heat exchange system provided in the embodiment of the present application will be described in conjunction with specific embodiments. Example

[0038] In the embodiment of the present application, when it is necessary to perform heat exchange indoors, you can choose to open M1 / M3, close K1, open F1, and close F2. The liquid flow path is - liquid storage tank - M1-D1-K1-G2-F1-indoor heat exchanger - M3-D3-liquid storage tank. In this path, liquid flows through the three devices of indoor liquid heat exchanger, G1\G2, and liquid storage tank, thereby exchanging heat energy. This path is also the path for controlling the liquid injection from the liquid storage tank to the indoor liquid heat exchanger and the G1\G2 device. At this time, if M1 is closed and K1 is opened, the liquid can be released. Example

[0039] In the embodiment of the present application, when the liquid storage tank is not required to participate in heat exchange, M2 can be turned on, K1 can be turned off, F1 can be turned on, and F2 can be turned off: the liquid flow path is - indoor liquid heat exchange plate - M2 - D2 - K1 - G2 - F1 - indoor liquid heat exchange plate. In this path, the indoor liquid heat exchange plate only exchanges heat energy with G1\G2. At this time, G2 and its flowing liquid can be used as an air conditioning heat exchange device. Example

[0040] In the embodiment of the present application, when the indoor liquid heat exchanger is not required to participate in heat exchange, M1 can be turned on, K1 can be turned off, F1 can be turned off, and F2 can be turned on: the liquid flow path is - liquid storage tank - M1 - D1 - K1 - G2 - F2 - liquid storage tank. In this path, the liquid storage tank only exchanges heat energy with G1\G2, and the liquid storage tank can be used as a heat storage device. Example

[0041] In the embodiment of the present application, M4 is turned on, F3 is turned off, and F4 is turned on: the liquid circulation path is - liquid storage tank - M4 - D4 - T1 - R1 - K2 - G4 - F4 - liquid storage tank. In this path, the liquid storage tank only exchanges heat energy with G3\G4. At this time, if the outdoor unit is in heating mode, the heat energy released by the outdoor unit can be recovered. The liquid storage tank is used as a heat energy storage device. If the liquid is water, then the liquid storage tank can be a water heater, and hot water is provided for external use. At this time, if the outdoor unit is in defrosting, according to the liquid temperature detected by T1, you can choose whether to turn on R1 to heat the liquid, which can speed up the defrosting time. When the defrosting is completed, you can choose to turn off M4, turn on M6, turn on K2, and drain the liquid in the pipe to prevent the liquid in the pipe from freezing. Example

[0042] In the embodiment itself, M4 is off, M5 is on, F3 is on, F4 is off, and F5 is on: the liquid flow path is outdoor liquid heat exchanger plate-M5-D5-T1-R1-K2-G4-F3-outdoor liquid heat exchanger plate. At this time, the liquid circulates between the outdoor unit and the outdoor liquid heat exchanger plate to increase the refrigerant exchange efficiency of the outdoor unit.

[0043] The embodiment of the present application adds a set of liquid flow heat transfer and energy storage devices; adds a liquid heat exchange plate indoors for heat transfer; adds a liquid heat exchange plate outdoors for heat transfer; adds liquid heat transfer assistance for outdoor unit defrosting; these added liquid flow heat transfer, heat exchange, energy storage devices, etc. can be installed and used separately, in combination or combined. The added liquid flow heat transfer and energy storage devices can effectively improve the electric energy and thermal energy utilization efficiency of the air-conditioning system. The addition of indoor liquid heat exchange plates combined with the original air-conditioning fan operation greatly improves the user experience. The outdoor unit defrosting adds liquid heat transfer assistance, greatly improves the air-conditioning defrosting efficiency, increases the applicable temperature range of the air-conditioning, and can effectively save energy. The addition of outdoor liquid heat exchange plates improves the heat exchange effect of the outdoor unit and increases the applicable temperature range of the air-conditioning.

[0044] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An air conditioning energy-saving heat exchange system, characterized in that: The system comprises: A first air conditioning unit, the first air conditioning unit comprising a first refrigerant heat exchanger, a high-pressure end component and a low-pressure end component connected to the first refrigerant heat exchanger, and a first liquid heat exchange pipe G1 connected to a first liquid circulation pipe, wherein a first refrigerant heat exchange tube G2 in the first refrigerant heat exchanger and the first liquid heat exchange pipe G1 are closely arranged; a second air conditioning unit, the second air conditioning unit comprising a second refrigerant heat exchanger, a high-pressure end component and a low-pressure end component connected to the second refrigerant heat exchanger; A liquid storage tank and / or a first liquid heat exchange plate, wherein the liquid storage tank is connected to a first liquid circulation pipeline, and the first liquid heat exchange plate is connected to the first liquid circulation pipeline; a second liquid circulation pipeline and a second liquid heat exchange pipeline G3 connected to the second liquid circulation pipeline, wherein the second liquid heat exchange pipeline G3 is closely arranged with a second refrigerant heat exchange tube G4 in the second refrigerant heat exchanger, wherein the second liquid circulation pipeline is connected to the liquid storage tank; a second liquid heat exchange plate, wherein the second liquid heat exchange plate is connected to the second liquid circulation pipe; The thermal conductivity of the materials used for the first liquid heat exchange pipe and the second liquid heat exchange pipe is greater than a preset value; The first liquid circulation pipeline comprises: An electromagnetic liquid valve F2 is connected to the first end of the first refrigerant heat exchange tube G2, the other end of the electromagnetic liquid valve F2 is connected to the liquid storage tank and the water outlet end of the one-way liquid valve D3, the water inlet end of the one-way liquid valve D3 is connected to one end of the electric liquid pump M3, the other end of the electric liquid pump M3 is connected to one end of the electric liquid pump M2 and the first liquid heat exchange plate, the other end of the electric liquid pump M2 is connected to the water inlet end of the one-way liquid valve D2, the water outlet end of the one-way liquid valve D2 is connected to one end of the normally closed air valve K1 and the water outlet end of the one-way liquid valve D1, the other end of the normally closed air valve K1 is connected to the second end of the first refrigerant heat exchange tube G2, and the water inlet end of the one-way liquid valve D1 is connected to the liquid storage tank.

2. The air conditioning energy-saving heat exchange system according to claim 1, characterized in that: The second liquid circulation pipeline comprises: A normally closed air valve K2 is connected to one end of the second refrigerant heat exchange tube G4, and the other end of the normally closed air valve K2 is connected to one end of the resistive heater R1, and the other end of the resistive heater R1 is connected to one end of the temperature sensor T1, and the other end of the temperature sensor T1 is connected to the water outlet ends of the one-way liquid valves D4 and D5, and the water inlet end of the one-way liquid valve D4 is connected to the liquid storage tank, and the water inlet end of the one-way liquid valve D5 is connected to one end of the electric liquid pump M5, and the other end of the electric liquid pump M5 is connected to one end of the electric liquid pump M6 and the second liquid heat exchange plate, and the other end of the electric liquid pump M6 is connected to the water inlet of the one-way liquid valve D6, and the water outlet of the one-way liquid valve D6 is connected to the liquid storage tank and one end of the electromagnetic liquid valve F4, and the other end of the electromagnetic liquid valve F4 is connected to the other end of the second refrigerant heat exchange tube and one end of the electromagnetic liquid valve F3, and the other end of the electromagnetic liquid valve F3 is connected to the second liquid heat exchange plate.

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