Five-constant system based on multi-split central air conditioner

Abstract

The utility model discloses a five-constant system based on a multi-split central air conditioner. The five-constant system comprises an outdoor unit, a refrigerant transmission and distribution system, an indoor unit, a cold and heat radiation system, an air processing box and an electric control system. The outdoor unit is connected with the multiple sets of cold and hot radiation systems and the air processing box through refrigerant conveying and distributing pipes. The cold and heat radiation system is mounted on the indoor ground or wall surface or top surface, and can perform cold and heat radiation on a single surface or multiple surfaces indoors; the air treatment box is used for treating the temperature, humidity, cleanliness and oxygen content of indoor air; the electric control system is used for collecting temperature, humidity, cleanliness and oxygen content data of indoor air and regulating and controlling operation of the air treatment box and the cold and heat radiation system. Freon after working of the outdoor unit is guided into the cold and hot radiation system and the air treatment box through the refrigerant conveying and distributing pipe, and five-constant effects, namely constant-temperature, constant-humidity, constant-oxygen, constant-cleanliness and constant-static functions, which cannot be achieved by an existing central air conditioner are achieved through joint work of the cold and hot radiation system and the air treatment box.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-split central air-conditioning transformation, in particular to a five-constant system based on the multi-split central air-conditioning. Background Art

[0002] Multi-split central air conditioner is a type of household central air conditioner, commonly known as "one to many", which refers to an outdoor unit connected to two or more indoor units through a refrigerant distribution system, with air cooling heat exchange on the outdoor side and air convection heat exchange on the indoor side. Multi-split systems are increasingly widely used in small and medium-sized buildings and some public buildings.

[0003] In the prior art, multi-split central air conditioners have a single function and can only realize the temperature adjustment function, but cannot achieve a more comprehensive adjustment of the indoor air, especially the cleanliness of the indoor air. Closing doors and windows for a long time will inevitably lead to excessive levels of harmful substances in the room, which will have a negative impact on human health. For example, there is no solution to excessive levels of harmful substances such as PM2.5, formaldehyde, and carbon dioxide. At the same time, since it uses air convection to cool or heat the room, it will inevitably lead to the generation of noise, and will also cause the human body to feel different temperatures due to being in different positions in the room. Secondly, the air outlet temperature is low, and the blowing on the body is stimulating, so the comfort level is average and the health is poor.

[0004] To this end, relevant personnel have specially developed the Five Constant System to solve the above-mentioned problems of central air-conditioning. The so-called Five Constant System refers to achieving a constant temperature, constant humidity, constant oxygen, constant cleanliness and constant quiet air environment indoors. It comprehensively adjusts indoor temperature, humidity, oxygen content, cleanliness, decibel value and other air quality parameters through the combination of air conditioning, fresh air, floor heating, purification, dehumidifier and other equipment, so that owners can enjoy a comfortable temperature without producing the above-mentioned shortcomings of central air-conditioning, creating a more comfortable and healthy home environment.

[0005] However, the purchase and installation costs of the existing five-constant system are relatively high, and most ordinary families cannot afford the corresponding installation costs. Therefore, the five-constant system is still exclusive to the rich and has not been more widely used. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a five-constant system based on a multi-split central air-conditioner. By modifying the indoor unit of the multi-split system, on the one hand, comprehensive air purification processing capabilities are achieved to make the indoor air healthier; on the other hand, the cooling and heating methods of the central air-conditioner are changed from air convection to ground, wall and ceiling radiation, without generating noise, temperature difference and stimulation, so that the indoor air can achieve the five-constant effect, which is more comfortable and healthier. It not only solves the existing defects of the central air-conditioner and achieves the five-constant effect, but also greatly reduces the purchase and installation costs, that is, the money for purchasing the central air-conditioner is used to achieve the five-constant use effect, and it has greater popularization ability. This is an upgrade of the central air-conditioner.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A five-constant system based on a multi-split central air conditioner, comprising an outdoor unit, a refrigerant distribution system, an indoor unit, a cold and hot radiation system, an air handling box, and an electric control system;

[0009] The outdoor unit 10 is connected to multiple groups of cold and hot radiation systems and air handling boxes through refrigerant transmission and distribution pipes;

[0010] The heat and cold radiation system is used for indoor floor, wall or ceiling, and can be used for all-round heat and cold radiation on one side or multiple sides.

[0011] The air processing box is used to process the temperature, humidity and cleanliness of the indoor air.

[0012] The electric control system is used to collect data on the temperature, humidity, cleanliness and oxygen content of the indoor air, and to regulate the operation of the air handling box and the cold and hot radiation system.

[0013] Preferably, the cold and hot radiation system includes a fluorine-water heat exchanger, and the refrigerant distribution pipe extends to the interior of the fluorine-water heat exchanger, and heat exchange is performed between fluorine and water. The water outlet of the fluorine-water heat exchanger is connected to a water distributor, and the water distributor is connected to water inlet ends of several coils, the water outlet of the coil is connected to the return water end of a water collector, and the water outlet of the water collector is connected to the water inlet end of the fluorine-water heat exchanger, and a mixing water circulation pump is provided on the pipeline between the distributor and collector and the fluorine-water heat exchanger to track the indoor temperature and humidity to adjust the water temperature and flow rate.

[0014] Preferably, the coil can be one-way or multiple-way, one-side or multiple-side according to the indoor area or the owner's requirements.

[0015] Preferably, the air handling box includes a box body, a surface cooler is arranged inside the air handling box body, a refrigerant distribution pipe extends into the box body and is connected to the surface cooler, and a fan is arranged inside the air handling box, and the circulation box is provided with an indoor air supply port, an indoor return air port, and an outdoor air inlet.

[0016] in:

[0017] The indoor air supply port is communicated with the air inlet end of the air distribution box, and the air outlet end of the air distribution box is connected to the indoor air supply pipe.

[0018] The return air port is connected to the air outlet end of the return air duct, and the air inlet end of the return air duct extends into the room;

[0019] The outdoor air inlet is communicated with the air outlet end of the air inlet pipe, and the air inlet end of the air inlet pipe extends to the outdoors.

[0020] Preferably, it further comprises a control panel, which is electrically connected to the outdoor unit, the cold and hot radiation system and the air handling box respectively, and is provided with temperature, humidity and cleanliness sensors.

[0021] Preferably, an air filter is provided inside the air treatment box.

[0022] Preferably, the air handling box is further provided with indoor return air and outdoor inlet air valves.

[0023] Preferably, a fan is also provided inside the air handling box.

[0024] Preferably, a reheat surface cooler is also provided inside the air handling box.

[0025] Preferably, the electric control system is internally provided with temperature, humidity, cleanliness sensors, a cold and hot radiation system and an air handling box controller.

[0026] The utility model provides a five-constant system based on a multi-split central air conditioner, which has the following beneficial effects:

[0027] It is more comfortable and healthier than central air conditioning. It is cheaper than the existing five-constant system and has a larger market space.

[0028] 1. In the utility model, the processed Freon of the outdoor unit is introduced into the cold and hot radiation system and the air handling box through the refrigerant distribution pipe. The cold and hot radiation system and the air handling box work together to achieve the five constant effects that the existing central air conditioner cannot achieve, namely, constant temperature, constant humidity, constant oxygen, constant cleanliness and constant quietness.

[0029] 2. In the utility model, compared with the five-constant air conditioning system in the prior art, the outdoor unit of the central air conditioning of the device does not require any modification of the refrigerant distribution pipes, and only the indoor unit and the control system are modified, which has a lower cost and is more acceptable to the general income class.

[0030] 3. In the present invention, the control panel is replaced with a control panel with temperature, humidity and cleanliness sensors to achieve automatic control of temperature, humidity and cleanliness. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a system flow diagram of a five-constant system based on a multi-split central air conditioner in the utility model;

[0032] Figure 2 It is a schematic diagram of the internal structure of the air handling box in the utility model. DETAILED DESCRIPTION

[0033] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0036] like Figure 1-2 As shown, a five-constant system based on central air-conditioning technology is shown in an embodiment of the present application. By improving the existing central air-conditioning technology, a five-constant system is obtained that can achieve indoor comfortable temperature while achieving indoor constant temperature, constant humidity, constant oxygen, constant cleanliness and constant quietness.

[0037] Central air conditioning is a common means of indoor cooling and heating. Since its cooling and heating adopts the air internal circulation convection method (the air conditioner indoor unit sucks in the indoor air and cools or heats it through the evaporator, and then sends the heated or cooled air into the room from the air outlet, and circulates back and forth continuously, and finally the indoor temperature reaches the set temperature), this method will inevitably lead to the following defects: 1. Loud noise. 2. The temperature felt by the human body at different positions in the room has obvious temperature differences. 3. Stimulation, strong wind feeling. 4. Poor indoor air quality. Long-term closed environment will inevitably lead to problems such as increased content of harmful substances in the air such as PM2.5, formaldehyde, carbon dioxide, etc., and decreased oxygen content. The utility model is based on the existing central air conditioning technology to transform the central air conditioner indoor unit, so that it can eliminate the problems of loud noise, uneven temperature, strong wind feeling, and large indoor air pollution while achieving cooling and heating.

[0038] Specifically, the present application provides a five-constant system based on central air conditioning technology, including an outdoor unit 10 and a refrigerant distribution system, and also includes a cold and hot radiation system and an air handling box;

[0039] The outdoor unit 10 is connected to multiple groups of cold and hot radiation systems and air handling boxes through the refrigerant distribution pipe 22, and the freon after the outdoor unit 10 is worked is introduced into the fluorine water heat exchanger and the air handling box through the refrigerant distribution pipe 22. The cold and hot radiation system and the air handling box are used to cool and heat, humidify, dehumidify, purify, and increase the oxygen content of the indoor air;

[0040] The heat and cold radiation system is used to radiate heat and cold indoors from the ground, wall or ceiling, either single-sided or multi-sided, completely eliminating the noise, temperature imbalance, strong wind feeling and stimulation problems generated by the central air conditioner during the cooling and heating process, and achieving a constant temperature and constant quiet effect;

[0041] The air handling box automatically switches and adjusts the air volume of outdoor circulation and indoor circulation according to the temperature, humidity and cleanliness sensors installed indoors. While providing cooling and heating, it dehumidifies, humidifies, purifies and increases the oxygen content of the air to achieve constant oxygen, constant cleanliness and constant humidity effects.

[0042] The electric control system automatically controls the air handling box and the cold and hot radiation system to operate accordingly to meet the temperature, humidity and cleanliness requirements according to the temperature, humidity and cleanliness sensors arranged on the indoor control panel.

[0043] Specifically, Figure 1As shown in: the cold and hot radiation system includes a fluorine-water heat exchanger 12, the refrigerant distribution pipe 22 extends to the inside of the fluorine-water heat exchanger 12 to perform fluorine-water heat exchange, the water outlet end of the fluorine-water heat exchanger 12 is connected to the water distributor 14, and the water distributor 14 is connected to the water inlet ends of several coils 16, the water outlet end of the coil 16 is connected to the return water end of the water collector 15, and the water outlet end of the water collector 16 is connected to the water inlet end of the fluorine-water heat exchanger 12, and a mixed water circulation pump 13 is provided on the pipeline between the water distributor and the heat exchanger 12 to regulate the flow and temperature of water to meet the requirements of cooling the radiation surface without condensation.

[0044] In this way, the Freon after working in the outdoor unit 10 is transported to the inside of the fluorine-water heat exchanger 12 through the refrigerant distribution pipe 22. Through the heat exchange of fluorine-water, the water inside the fluorine-water heat exchanger 12 will be heated or cooled. The water inside the fluorine-water heat exchanger 12 is then driven by the mixed water circulation pump 13 to enter the coil 16 for circulation. The coil 16 radiates heat and cold to the room, ensuring that the indoor temperature is uniform and no noise is generated, thereby achieving a constant temperature and constant quiet effect.

[0045] In some embodiments, the coil 16 can be one group or multiple groups according to the indoor area and the requirements of different temperature zone settings, and the coil 16 can be installed on the ground, ceiling, wall, one side, or multiple sides. In this way, when water flows through the coils set on multiple sides, it can more effectively emit cold and hot radiation to the room, and cold and heat can be transferred to the indoor space from multiple directions, which makes the indoor temperature more uniform and faster, and helps to improve the indoor temperature adjustment range and make individual adaptability stronger.

[0046] Specifically, Figure 2 As shown in: the air handling box includes an air handling box body 21, a surface cooler 24 is arranged inside the box body 21, the refrigerant distribution pipe 22 extends into the box body 21 and is connected to the surface cooler 24, and a fan 26 is arranged inside the box body 21, and the box body 21 is provided with an indoor air supply port (to send the air that has been cooled, heated, dehumidified, humidified and purified into the room), an indoor return air port (to send the indoor air into the box body for cooling, heating, dehumidification, humidification and purification) and an outdoor air inlet (when the pollutants in the indoor air exceed the standard, open and introduce outdoor fresh air for cooling, heating, dehumidification, humidification and purification, the purpose is to increase the indoor oxygen content while squeezing the indoor polluted air out of the room), wherein:

[0047] The indoor air supply port of the air handling unit is connected to the air inlet end of the air distribution box 19, and the air distribution box 19 has a plurality of air outlets, which convey the corresponding air volume into each room according to the air volume of each room in the room.

[0048] The indoor return air port of the air handling unit is connected to the air outlet end of the return air duct 18, and the air inlet end of the return air duct 18 extends into the room;

[0049] The outdoor air inlet is connected to the air outlet end of the air inlet pipe 17, and the air inlet end of the air outlet pipe 17 extends to the outdoors;

[0050] In this way, when the compressor inside the outdoor unit 10 is working, the Freon is delivered to the surface cooler 24 in the air handling box to cool, heat and dehumidify the air in the air handling box. At the same time, the air inside the air handling box is sent to the inside of the air distribution box 19 through the fan 26, and the air is distributed to each room indoors through the air distribution box 19 to achieve cooling, heating, dehumidification, purification and oxygenation of the indoor air. The air handling unit will automatically start and adjust the air volume ratio of the internal circulation or external circulation according to the indoor air sensor. For example, when the indoor temperature and humidity are far from the set temperature and humidity, the air handling box will automatically close the external circulation and open the internal circulation, and circulate the indoor air through the return air duct 18, repeatedly cooling, heating, dehumidifying, humidifying and purifying the indoor air. When the indoor sensor finds that the indoor air quality and oxygen content are reduced, the indoor return air 18 is closed, the air inlet pipe 17 is opened, and the external air is introduced into the interior of the air handling box. After passing through the air purification filter, the purified air is cooled and heated by the surface cooler 24. After dehumidification, the air is sent to the distribution box 19 through the fan 26 to introduce fresh air and discharge indoor air with excessive pollutants, thereby improving the indoor air quality and achieving the functions of constant cleanliness, constant oxygen and constant humidity.

[0051] Working principle: When in use, start the power supply, and the internal compressor of the outdoor unit 10 works on the Freon, and introduces the Freon into the surface cooler 24 and the fluorine-water heat exchanger 12 inside the air handling box. When the Freon enters the surface cooler 24 inside the air handling box, the air inside the air handling box is cooled or heated, and dehumidified. At the same time, the air inside the air handling box is sent to the inside of the air distribution box 19 through the fan 26, and the air is diverted to each room in the room through the air distribution box 19 to achieve cooling, heating, dehumidification and purification of the indoor air. When there is a difference between the indoor air temperature and humidity and the set temperature, the temperature, humidity and cleanliness sensors installed indoors are used to control the outdoor air inlet volume in the air handling box to be closed or reduced, and the indoor air is circulated and heated, cooled, dehumidified and purified through the return air duct 18. When the indoor air quality and oxygen content decrease, close the room or reduce the air volume of the return air vent 18, open the air inlet pipe 17, and introduce the external air into the air handling box. After being purified by the air filter, the air is cooled, heated and dehumidified by the surface cooler 24, and then sent to the distribution box 19 and each room in the room through the fan 26 to realize the introduction of fresh air, thereby improving the indoor air quality. When Freon enters the fluorine-water heat exchanger 12, fluorine-water heat exchange is achieved on the water in the fluorine-water heat exchanger 12. Cold water or hot water is driven into the coil 16 after temperature adjustment through the mixed water circulation pump 13. The indoor air is radiated with cold and heat through the coil 16 to ensure that the indoor temperature is uniform and no noise is generated. Therefore, the constant temperature, constant humidity, constant oxygen, constant cleanliness and constant quietness of the indoor air are achieved through the set cold and hot radiation system and air handling box. Compared with the five constant systems after the transformation of the existing central air-conditioning, the present application does not increase the cost, but the comfort and health of use are fundamentally solved. It can be said to be a transformation and upgrade of the existing central air-conditioning, which is of great value.

[0052] It should be noted that control valve bodies are provided on the refrigerant distribution pipe 22, the air inlet pipe 17, the return air pipe 18 and the external pipes of the fluorine water heat exchanger 12 to control the opening, closing and quantity of each pipe, which is more convenient for users to choose. This technology is a common technology and will not be described here one by one.

[0053] Furthermore, it also includes a control panel (not shown in the figure), which is electrically connected to the outdoor unit 10, the hot and cold radiation system and the air handling box respectively. The control panel has built-in temperature, humidity and cleanliness sensors. The temperature, humidity and cleanliness sensors control the operating conditions of each device in the automatic control system according to artificial settings, thereby ensuring a constant temperature, constant humidity, constant quietness, constant cleanliness and a healthier air environment indoors.

[0054] Further, such as Figure 2 As shown in: an air filter 23 is arranged inside the air treatment box, and the air filter 23 is used to filter impurities and bacteria in the air to make the air cleaner.

[0055] Furthermore, in order to achieve independent control of temperature and humidity, a condenser 25 is also provided inside the air handling box.

[0056] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A five-constant system based on multi-split central air conditioning, characterized by: Including outdoor unit, refrigerant distribution system, indoor unit, cold and hot radiation system, air handling box, and electronic control system; The outdoor unit is connected to multiple groups of cold and hot radiation systems and air handling boxes respectively through refrigerant transmission and distribution pipes; The heat and cold radiation system is installed on the floor, wall or ceiling of the room, and can radiate heat and cold to the room from one side or multiple sides; The air processing box is used to process the temperature, humidity, cleanliness and oxygen content of the indoor air; The electric control system is used to collect data on the temperature, humidity, cleanliness and oxygen content of the indoor air, and to regulate the operation of the air handling box and the cold and hot radiation system.

2. A five-constant system based on a multi-split central air conditioner as claimed in claim 1, characterized in that: The cold and hot radiation system includes a fluorine-water heat exchanger, and a refrigerant distribution pipe extends to the inside of the fluorine-water heat exchanger, and heat exchange is performed between fluorine and water. The water outlet of the fluorine-water heat exchanger is connected to a water distributor, and the water distributor is connected to water inlet ends of a plurality of coils, the water outlet of the coil is connected to a return water end of a water collector, and the water outlet of the water collector is connected to a water inlet end of the fluorine-water heat exchanger, and a mixing water circulation pump is provided on the pipeline between the water distributor and the fluorine-water heat exchanger to track the indoor temperature and humidity to adjust the water temperature and flow rate, so as to ensure that condensation does not occur on the radiation surface in the cooling state.

3. A five-constant system based on a multi-split central air conditioner as claimed in claim 2, characterized in that: The coils can be arranged in one or more groups according to the indoor area and the owner's requirements, and can be installed on the ground, wall, ceiling, or on one side or multiple sides.

4. A five-constant system based on a multi-split central air conditioner as claimed in claim 1, characterized in that: The air handling box comprises a box body, a surface cooler is arranged inside the box body, a refrigerant distribution pipe extends into the box body and is connected to the surface cooler, and a fan is arranged inside the air handling box, and an indoor air supply port, an indoor air return port and an outdoor air inlet are arranged on the air handling box, wherein: The indoor air supply port is connected to the air inlet end of the air distribution box, and the air outlet end of the air distribution box is connected to the air inlet end of the indoor air supply pipe, so that the treated air is delivered to each room according to indoor demand; The indoor return air outlet is connected to the air outlet end of the return air duct, and the air inlet end of the return air duct extends into the room; the indoor air is sent to the air treatment box for temperature, humidity and cleanliness treatment; The outdoor air inlet is communicated with the air outlet end of the air inlet pipe, and the air inlet end of the air inlet pipe extends to the outdoors to introduce outdoor fresh air.

5. A five-constant system based on a multi-split central air conditioner as claimed in claim 1, characterized in that: It also includes a control panel, which is electrically connected to the outdoor unit, the hot and cold radiation system and the air handling box respectively. The control panel is provided with temperature, humidity and cleanliness sensors, which automatically collect indoor temperature, humidity and cleanliness data, and automatically control the system to meet the requirements of indoor temperature, humidity, cleanliness and oxygen content.

6. A five-constant system based on a multi-split central air conditioner as claimed in claim 4, characterized in that: An air filter is arranged inside the air treatment box to filter and purify the air transported into the room.

7. A five-constant system based on a multi-split central air conditioner as claimed in claim 4, characterized in that: A surface cooler is also provided inside the air handling box for heating, cooling and dehumidifying the air.

8. A five-constant system based on a multi-split central air conditioner as claimed in claim 4, characterized in that: A fan is also provided inside the air treatment box for indoor and outdoor air circulation.

9. A five-constant system based on a multi-split central air conditioner as claimed in claim 4, characterized in that: The air handling box is also provided with indoor return air and outdoor air inlet air valves for controlling the ratio of indoor circulating air volume to outdoor fresh air volume.

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