A kitchen air conditioning system with full heat exchange

Abstract

A kitchen air conditioning system with full heat exchange, comprising an air conditioning component and a range hood component, wherein a first heat exchanger is installed in an air outlet channel inside an air conditioner, a second heat exchanger is installed in a smoke exhaust channel inside a range hood, the air conditioning component further comprises a full heat exchanger matched with the air conditioner, air from an indoor space outside a kitchen is divided into two return air paths, one of which is discharged into a smoke exhaust pipe through a full heat exchanger, and the other enters the air conditioner and is supplemented to the kitchen or the indoor space outside the kitchen, and outdoor fresh air can be supplemented to the kitchen or the indoor space outside the kitchen through the full heat exchanger and the air conditioner in turn. The advantages of the present invention are: the kitchen air conditioning system combines a range hood, a full heat exchanger and a kitchen air conditioner, which can not only realize the function of fresh air for the whole house, but also improve the energy efficiency level of the kitchen air conditioner in the refrigeration state, and in addition, the use of return air refrigeration in the living room and the dining room can significantly improve the service life of the evaporator in the refrigeration system.

Description

Technical Field

[0001] The invention relates to a kitchen air conditioning system, in particular to a kitchen air conditioning system with full heat exchange. Background Art

[0002] The kitchen is the main place for people to cook, and the quality of the kitchen air environment directly affects the cooking experience. The kitchen is hot in summer and cold in winter, and there is a need for cooling and heating. For this reason, people have invented various kitchen air conditioners to cool the kitchen air in summer and provide warm air to the kitchen in winter to improve cooking comfort. Conventional kitchen air conditioners can be divided into three categories. The first category is central air conditioners, which need to be embedded in the ceiling. They are expensive, complicated to install, and extremely difficult to clean. The second category is mobile air conditioners, which are conventional mobile air conditioners used directly in the kitchen. They are noisy, take up space, and are not resistant to oil smoke and dirt. The third category is range hoods with air conditioning functions. This type of range hood often combines the indoor unit of a traditional air conditioner with a traditional range hood for simple functions. Due to the limitation of installation space or technical difficulties, the outdoor unit of the air conditioner needs to be installed separately outdoors. This type of air conditioner range hood is not integrated enough, the structure is often large, the installation space requirements are large, and the installation is also cumbersome. The pipes and line connections between the indoor and outdoor units of the air conditioner cause the kitchen space to be messy. In addition, the evaporator of the existing kitchen air conditioning system often directly takes in outdoor wind, which increases the heat load of the kitchen air conditioner and fails to meet the energy-saving requirements.

[0003] In addition, the existing living room (dining room) is generally equipped with a common air conditioning system, and its temperature is generally comfortable. Since the living room (dining room) also has a large demand for fresh air, it is necessary not only to introduce clean fresh air, but also to exhaust dirty air. However, while exhausting dirty air, the indoor cold load is also directly discharged to the outside, which is not energy-saving. If a full heat exchange system is installed separately in the living room (dining room), it is not only complicated to install and costly, but also faces the problem of duplication of fresh air functions with the kitchen air conditioner. In summary, the existing kitchen air conditioning system needs to be further improved. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a kitchen air conditioning system with full heat exchange that can realize circulating refrigeration, dehumidification and fresh air refrigeration modes in the kitchen in view of the above-mentioned existing technical status.

[0005] The technical solution adopted by the present invention to solve the above technical problems is: the kitchen air conditioning system with full heat exchange includes an air conditioning component and a fume extraction component, the air conditioning component includes an air conditioner indoor unit, a compressor, a first heat exchanger and a second heat exchanger, the compressor, the first heat exchanger and the second heat exchanger are connected through a refrigerant pipeline, the fume extraction component includes a range hood and an exhaust pipe installed at the exhaust port of the range hood, characterized in that: the first heat exchanger is installed in the air outlet channel inside the air conditioner indoor unit, the second heat exchanger is installed in the exhaust channel inside the range hood, the air conditioning component also includes a full heat exchanger matched with the air conditioner indoor unit, the air from the indoor space outside the kitchen is divided into two return air paths, one of which can be discharged into the exhaust pipe through the full heat exchanger, and the other can enter the air conditioner indoor unit and be supplemented to the kitchen room or the indoor space outside the kitchen, and the outdoor fresh air can be supplemented to the kitchen room or the indoor space outside the kitchen through the full heat exchanger and the air conditioner indoor unit in turn.

[0006] In order to realize the air duct switching between the exhaust duct and the smoke exhaust duct of the total heat exchanger, the total heat exchanger and the smoke exhaust duct are connected through the exhaust duct, and an air duct switching valve is installed at the connection between the smoke exhaust duct and the exhaust duct. The air duct switching valve can switch one of the smoke exhaust duct and the exhaust duct to be connected to the outdoors or a common flue.

[0007] In order to realize the air duct switching of the indoor unit of the air conditioner, the indoor unit of the air conditioner includes a first fan, a return air port and an air inlet. The air outlet channel is formed downstream of the air outlet of the first fan. The return air port and the air inlet are fluidically connected to the air outlet channel through the first fan. The return air port is connected to the indoor space outside the kitchen. A first air valve is installed at the return air port. The air inlet is used to be connected to the air outlet of the total heat exchanger. A second air valve is installed at the air inlet.

[0008] In order to enable the air outlet of the air outlet duct to be selectively discharged to the indoor space inside the kitchen or outside the kitchen, an air volume distribution box is installed at the outlet of the air outlet duct of the air conditioner indoor unit, a third air valve is installed at the outlet of the air volume distribution box connected to the indoor space outside the kitchen, and a fourth air valve is installed at the outlet of the air volume distribution box connected to the indoor space inside the kitchen.

[0009] Further preferably, the air volume distribution box is connected to the indoor space outside the kitchen through a fresh air duct, and the air in the indoor space outside the kitchen is connected to the air conditioner indoor unit and the total heat exchanger through a return air duct.

[0010] In order to enable the system to switch working modes, an electric control component for controlling the first air valve, the second air valve, the third air valve and the fourth air valve is installed on the indoor unit of the air conditioner.

[0011] The total heat exchanger can have a variety of structures. Preferably, a second fan is installed inside the total heat exchanger. The total heat exchanger includes a first air inlet and a first air outlet that are interconnected, and a second air inlet and a second air outlet that are interconnected. The first air inlet is connected to the outdoors, the first air outlet is connected to the air inlet of the air conditioner indoor unit, the second air inlet is connected to the indoor space outside the kitchen, and the second air inlet is connected to the exhaust duct after passing through the second fan.

[0012] In order to provide purified air to the kitchen, a filter is installed at the return air outlet of the air conditioner, and a fresh air purification unit is installed at the first air inlet of the total heat exchanger.

[0013] In order to make the system more beautiful, the air conditioner indoor unit and the total heat exchanger are installed on the kitchen ceiling.

[0014] In order to prevent oil smoke from contaminating the second heat exchanger, the range hood includes an oil smoke exhaust fan, and the exhaust channel is formed downstream of the oil smoke exhaust fan. An oil fume purification device is installed in the exhaust channel, and along the path of the oil smoke flow, the oil fume purification device is located upstream of the second heat exchanger.

[0015] In order to improve the system integration, the compressor is integrated on the range hood.

[0016] In order to smoothly discharge the condensed water in the air conditioner indoor unit, the first heat exchanger is an evaporator, the second heat exchanger is a condenser, and the air conditioner indoor unit is externally connected to a drain pipe for discharging the condensed water on the first heat exchanger to the outside.

[0017] Further preferably, the indoor space outside the kitchen is a living room or a dining room or both.

[0018] As a preferred embodiment of any of the above schemes, a throttling device is installed on the refrigerant pipeline between the first heat exchanger and the second heat exchanger.

[0019] Compared with the prior art, the advantages of the present invention are: the kitchen air conditioning system combines a range hood, a total heat exchanger and a kitchen air conditioner, and the system can operate in indoor air cooling mode, fresh air cooling mode and whole-house fresh air mode, which can not only realize the function of whole-house fresh air, but also improve the energy efficiency level of the kitchen air conditioner in the cooling state. In addition, by utilizing the return air cooling of spaces outside the kitchen such as the living room and dining room, the service life of the evaporator in the refrigeration system can be significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0021] Figure 2 This is a schematic structural diagram of a fume absorbing assembly according to an embodiment of the present invention;

[0022] Figure 3 Schematic diagram of the installation structure of the air duct switching valve according to an embodiment of the present invention. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below with reference to the accompanying drawings.

[0024] like Figure 1 and Figure 2 As shown, the kitchen air conditioning system with full heat exchange of this embodiment includes an air conditioning component 1 and a fume extraction component 2. The air conditioning component 1 includes an air conditioner indoor unit 10, a compressor 11, a first heat exchanger 12, a second heat exchanger 13 and a full heat exchanger 15. The compressor 11, the first heat exchanger 12 and the second heat exchanger 13 are connected through a refrigerant pipeline 14. A throttling device 19 is installed on the refrigerant pipeline 14 between the first heat exchanger 12 and the second heat exchanger 13. The working principle of the air conditioning component 1 is the same as that of the existing air conditioner, and will not be described in detail here.

[0025] The air conditioner 10 of this embodiment is provided with a first fan 16 and an air outlet channel, and the air outlet channel is located downstream of the air outlet of the first fan 16, and the first heat exchanger 12 is installed in the air outlet channel. The housing of the air conditioner 10 is provided with a return air port 17 and an air inlet 18, and the return air port 17 is connected to the indoor space b outside the kitchen through the return air duct 8, and a filter 6 is installed at the return air port 17, and the air inlet 18 is connected to the air outlet of the total heat exchanger 15, and the return air port 17 and the air inlet 18 are fluidly connected to the air outlet channel through the first fan 16. In addition, a first air valve 31 is installed at the return air port 17, and a second air valve 32 is installed at the air inlet 18. When the first air valve 31 is opened, the air in the indoor space b outside the kitchen can enter the air conditioner 10 through the return air port 17, and when the second air valve 32 is opened, the outdoor fresh air can enter the air conditioner 10 through the air inlet 18.

[0026] The outlet of the air outlet passage of the air conditioner indoor unit 10 is installed with an air volume distribution box 4, and the outlet of the air volume distribution box 4 connected to the indoor space b outside the kitchen is installed with a third air valve 33, and the air volume distribution box 4 is connected to the indoor space b outside the kitchen through the fresh air duct 7. The outlet of the air volume distribution box 4 connected to the kitchen indoor a is installed with a fourth air valve 34.

[0027] The air conditioner indoor unit 10 is equipped with an electric control component 5, which controls the opening and closing of the first air valve 31, the second air valve 32, the third air valve 33 and the fourth air valve 34, thereby controlling the working mode of the system.

[0028] The total heat exchanger 15 of this embodiment includes a first air inlet 151, a first air outlet 152, a second air inlet 153 and a second air outlet 154. A second fan 155 is installed inside the total heat exchanger 15. The second fan 155 is arranged in the air duct between the second air inlet 153 and the second air outlet 154. The second air inlet 153 is connected to the exhaust pipe 156 through the second fan 155. Among them, the first air inlet 151 is connected to the outside, the first air inlet 151 is connected to the first air outlet 152, and the first air outlet 152 is connected to the air inlet 18 of the air conditioner 10. After the second air valve 32 is opened, the outdoor fresh air can enter the air conditioner 10 through the first air inlet 151, the first air outlet 152 and the air inlet 18 in sequence. The second air inlet 153 is also connected to the indoor space b outside the kitchen through the return air pipe 8. In order to purify the outdoor fresh air, a fresh air purification unit 157 is installed at the first air inlet 151 of the total heat exchanger 15. In addition, the indoor space b other than the kitchen mentioned above can be a living room or a dining room.

[0029] The air conditioner indoor unit 10 and the total heat exchanger 15 of the present embodiment are installed in the kitchen ceiling. In this way, the decoration does not need to be destroyed during installation, and the aesthetics is better.

[0030] The range hood assembly 2 of the present embodiment includes a range hood 21 and a smoke exhaust pipe 23 installed at the smoke exhaust port of the range hood. The smoke exhaust pipe 23 is connected to the exhaust duct 156. An air duct switching valve 35 is installed at the connection between the smoke exhaust pipe 23 and the exhaust duct 156. The air duct switching valve 35 can switch one of the smoke exhaust pipe 23 and the exhaust duct 156 to be connected to the outdoors or a common smoke duct.

[0031] The range hood 21 includes a range hood fan 211, and a smoke exhaust channel 22 is formed downstream of the range hood fan 211. A smoke purification device 24 is installed in the smoke exhaust channel 22, and the smoke purification device 24 is located upstream of the second heat exchanger 13 along the path of the smoke flow, thereby preventing the smoke from polluting the second heat exchanger 13.

[0032] The compressor 1 of this embodiment is integrated on the range hood 21 . In addition, the compressor 11 may be installed in the kitchen ceiling or integrated on the indoor unit 10 of the air conditioner.

[0033] In this embodiment, the first heat exchanger 12 is an evaporator, and the second heat exchanger 13 is a condenser. In this way, after the compressor 11 is started, cold air is blown out from the air conditioner indoor unit 10 to supplement the kitchen indoor space a or to supplement the indoor space b outside the kitchen. When the system is working, condensed water will be generated in the air conditioner indoor unit 10. In order to discharge the condensed water smoothly, the air conditioner indoor unit 10 is connected to a drain pipe 9, and the condensed water is discharged to the outside through the drain pipe 9.

[0034] The system works in the following mode:

[0035] In indoor air cooling mode, the first air valve 31 and the fourth air valve 34 are opened, the second air valve 32 and the third air valve 33 are closed, and the air duct switching valve 35 is rotated to Figure 3 In the position shown, the first fan 16 is turned on, the second fan 155 is turned off, and the fume extractor fan 211 is turned on. At this time, the outdoor fresh air cannot enter the air conditioner 10, and the return air from the indoor space b outside the kitchen can only enter the air conditioner 10 through the return air port 17, and after flowing through the first heat exchanger 12, provide cold air to the kitchen room a through the air volume distribution box 4. At the same time, the fume in the exhaust channel 22 takes away the heat of the second heat exchanger 13, thereby improving the energy efficiency of the air conditioner.

[0036] In the fresh air cooling mode, the second air valve 32 and the fourth air valve 34 are opened, the first air valve 31 and the third air valve 33 are closed, and the air duct switching valve 35 is rotated to Figure 3 In the position shown, the first fan 16 is turned on, the second fan 155 is turned off, and the fume extractor fan 211 is turned on. At this time, the air in the indoor space b outside the kitchen cannot be returned, and the outdoor fresh air enters the air conditioner indoor unit 10 from the air inlet 18 of the air conditioner indoor unit 10 after passing through the total heat exchanger 15, and flows through the first heat exchanger 12 and then provides cold air to the kitchen indoor space a through the air volume distribution box 4. At the same time, the fume in the exhaust channel 22 takes away the heat of the second heat exchanger 13, thereby improving the energy efficiency of the air conditioner.

[0037] In the whole-house fresh air mode, the second air valve 32 and the third air valve 33 are opened, the first air valve 31 and the fourth air valve 34 are closed, and the air duct switching valve 35 is rotated to Figure 1 In the position shown, the first fan 16 and the second fan 155 are turned on, and the fume extractor fan 211 is turned off. At this time, the outdoor fresh air passes through the total heat exchanger 15 and enters the air conditioner indoor unit 10 from the air inlet 18 of the air conditioner indoor unit 10, and flows through the first heat exchanger 12 and then provides cold air to the indoor space b outside the kitchen through the air volume distribution box 4. The return air of the indoor space b outside the kitchen enters the total heat exchanger 15 through the return air duct 8, and is further discharged to the outdoors or the public flue through the exhaust duct 156.

Claims

1. A kitchen air conditioning system with full heat exchange, comprising an air conditioning component (1) and a fume extraction component (2), wherein the air conditioning component (1) comprises an air conditioner indoor unit (10), a compressor (11), a first heat exchanger (12) and a second heat exchanger (13), wherein the compressor (11), the first heat exchanger (12) and the second heat exchanger (13) are connected via a refrigerant pipeline (14), and the fume extraction component (2) comprises a fume extractor (21) and a fume exhaust pipe (23) installed at a fume exhaust port of the fume extractor, characterized in that: The first heat exchanger (12) is installed in the air outlet passage inside the air conditioner indoor unit (10), and the second heat exchanger (13) is installed in the smoke exhaust passage (22) inside the range hood (21). The air conditioning component (1) also includes a total heat exchanger (15) matched with the air conditioner indoor unit (10). The air from the indoor space (b) outside the kitchen is divided into two return air paths, one of which can be discharged into the smoke exhaust pipe (23) through the total heat exchanger (15), and the other can enter the air conditioner indoor unit (10) and be supplemented to the kitchen indoor unit (a) or the indoor space (b) outside the kitchen. The outdoor fresh air can pass through the total heat exchanger (15) and the air conditioner indoor unit (10) in sequence. 0) is supplied to the kitchen room (a) or the indoor space outside the kitchen (b) the total heat exchanger (15) is connected to the smoke exhaust pipe (23) through the exhaust pipe (156), and an air duct switching valve (35) is installed at the connection point between the smoke exhaust pipe (23) and the exhaust pipe (156), and the air duct switching valve (35) can switch one of the smoke exhaust pipe (23) and the exhaust pipe (156) to be connected to the outdoors or a common smoke duct, the air conditioner indoor unit (10) includes a first fan (16), a return air port (17) and an air inlet (18), the outlet channel is formed downstream of the outlet of the first fan (16), and the return air port (17) and the air inlet (18) are connected to the exhaust pipe (23) and the exhaust pipe (156). The air inlet (18) is fluidically connected to the air outlet passage through the first fan (16); the return air inlet (17) is connected to the indoor space (b) outside the kitchen; a first air valve (31) is installed at the return air inlet (17); the air inlet (18) is used to be connected to the air outlet of the total heat exchanger (15); a second air valve (32) is installed at the air inlet (18); an air volume distribution box (4) is installed at the outlet of the air outlet passage of the air conditioner indoor unit (10); a third air valve (33) is installed at the outlet of the air volume distribution box (4) connected to the indoor space (b) outside the kitchen; a fourth air valve is installed at the outlet of the air volume distribution box (4) connected to the kitchen indoor space (a) (34), a second fan (155) is installed inside the total heat exchanger (15), and the total heat exchanger (15) includes a first air inlet (151) and a first air outlet (152) that are interconnected, and a second air inlet (153) and a second air outlet (154) that are interconnected, wherein the first air inlet (151) is connected to the outdoors, the first air outlet (152) is connected to the air inlet (18) of the indoor unit (10) of the air conditioner, the second air inlet (153) is connected to the indoor space (b) outside the kitchen, and the second air inlet (153) is connected to the exhaust duct (156) after passing through the second fan (155).

2. The kitchen air conditioning system with full heat exchange according to claim 1, characterized in that: The air volume distribution box (4) is connected to the indoor space (b) outside the kitchen through the fresh air duct (7), and the air in the indoor space (b) outside the kitchen is connected to the air conditioner indoor unit (10) and the total heat exchanger (15) through the return air duct (8).

3. The kitchen air conditioning system with full heat exchange according to claim 1, characterized in that: An electric control component (5) for controlling a first air valve (31), a second air valve (32), a third air valve (33), and a fourth air valve (34) is installed on the indoor unit (10) of the air conditioner.

4. The kitchen air conditioning system with full heat exchange according to claim 1, characterized in that: A filter (6) is installed at the return air inlet (17) of the air conditioner indoor unit (10), and a fresh air purification unit (157) is installed at the first air inlet (151) of the total heat exchanger (15).

5. The kitchen air conditioning system with full heat exchange according to claim 1, characterized in that: The air conditioner indoor unit (10) and the total heat exchanger (15) are installed on the kitchen ceiling.

6. The kitchen air conditioning system with full heat exchange according to claim 1, characterized in that: The range hood (21) comprises a range fume exhaust fan (211), the smoke exhaust passage (22) is formed downstream of the range fume exhaust fan (211), a smoke purification device (24) is installed in the smoke exhaust passage (22), and the smoke purification device (24) is located upstream of the second heat exchanger (13) along the path of the smoke flow.

7. The kitchen air conditioning system with full heat exchange according to claim 1, characterized in that: The compressor (11) is integrated on the range hood (21).

8. The kitchen air conditioning system with full heat exchange according to claim 1, characterized in that: The first heat exchanger (12) is an evaporator, the second heat exchanger (13) is a condenser, and the air conditioner indoor unit (10) is externally connected to a drain pipe (9) for discharging condensed water on the first heat exchanger (12) to the outside of the room.

9. The kitchen air conditioning system with full heat exchange according to claim 1, characterized in that: The indoor space (b) outside the kitchen is a living room or a dining room or a living room and a dining room.

10. The kitchen air conditioning system with full heat exchange according to any one of claims 1 to 9, characterized in that: A throttling device (19) is installed on the refrigerant pipeline (14) between the first heat exchanger (12) and the second heat exchanger (13).

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