A kitchen air conditioning system with full heat exchange

Abstract

A kitchen air conditioning system with full heat exchange, wherein the first heat exchanger of the air conditioning component is installed in the air outlet channel of the air conditioner indoor unit, the air outlet channel has an air outlet connected to the kitchen room, the return air port and the air inlet of the air conditioner indoor unit are fluidly connected to the air outlet channel through a fume suction fan, the full heat exchanger has 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 second air inlet is connected to the indoor space outside the kitchen, the first air outlet is connected to the air inlet of the air conditioner indoor unit, and the second air outlet is connected to the outdoors. The kitchen air conditioning system can switch the working mode between the kitchen circulation mode, the indoor air cooling mode and the fresh air cooling mode, and in the fresh air cooling mode, recover part of the coldness of the indoor space outside the kitchen to cool down the fresh air entering the air conditioner indoor unit, thereby improving the energy efficiency level of the kitchen air conditioning in the cooling state.

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 as follows: the kitchen air conditioning system with full heat exchange includes an air conditioning component, the air conditioning component includes an air conditioner, 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, a first fan is installed inside the air conditioner, and the first heat exchanger is characterized in that: the first heat exchanger is installed in an air outlet channel downstream of the first fan, the air outlet channel has an air outlet connected to the kitchen room, a return air port and an air inlet are opened on the air conditioner, the return air port and the air inlet are fluidly connected to the air outlet channel through the first fan, the air conditioning component also includes a full heat exchanger, the full heat exchanger has 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 outside, the second air inlet is connected to the indoor space outside the kitchen, the first air outlet is connected to the air inlet of the air conditioner, and the second air outlet is connected to the outside.

[0006] In order to switch the working mode, a first air valve is installed at the return air outlet of the air conditioner indoor unit, a second air valve is installed at the air inlet of the air conditioner indoor unit, and an electric control component for controlling the first air valve and the second air valve is installed on the air conditioner indoor unit.

[0007] In order to improve the heat exchange effect of the air conditioner, the system also includes an oil fume suction component, which includes a casing and an oil fume suction fan installed in the casing. A smoke exhaust channel is formed inside the casing and downstream of the oil fume suction fan. The second heat exchanger is installed in the smoke exhaust channel.

[0008] In order to improve the system integration, preferably, the compressor is integrated on the oil fume suction component.

[0009] In order to prevent the oil smoke from contaminating the heat exchanger in the exhaust passage, an oil smoke purification device is installed in the exhaust passage, and along the path of the oil smoke flow, the oil smoke purification device is located upstream of the second heat exchanger.

[0010] In order to allow the indoor return air to be discharged outdoors smoothly, a second fan is installed inside the total heat exchanger. The second fan is arranged in the air duct between the second air inlet and the second air outlet and the air outlet direction is toward the second air outlet.

[0011] 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.

[0012] 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.

[0013] In order to make the system structure more compact, the air outlet passage is formed inside the air conditioner indoor unit, and an air outlet of the air outlet passage is opened on the shell of the air conditioner indoor unit.

[0014] In order to further improve the overall integration and aesthetics of the system, the air conditioner indoor unit and the total heat exchanger are installed in the kitchen ceiling.

[0015] In order to realize the circulating refrigeration mode in the kitchen, the return air outlet of the air conditioner indoor unit is connected with the kitchen room.

[0016] In order to realize the indoor air cooling mode outside the kitchen, the return air outlet of the air conditioner indoor unit is connected to the indoor space outside the kitchen.

[0017] Further preferably, the system also includes a return air duct, the inlet end of the return air duct is connected to the indoor space outside the kitchen, and the outlet end of the return air duct is divided into two paths, one of which is connected to the return air port of the air conditioner indoor unit, and the other is connected to the second air inlet of the total heat exchanger.

[0018] Further preferably, the indoor space outside the kitchen is a living room or a dining room or both.

[0019] 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.

[0020] Compared with the prior art, the advantages of the present invention are: the kitchen air conditioning system combines the air conditioner indoor unit with the full heat exchanger. Through the air duct switching, the system can switch the working mode between the kitchen circulation mode, the indoor air cooling mode and the fresh air cooling mode. In the fresh air cooling mode, it can also recover part of the cold air in the indoor space outside the kitchen, such as the living room and the dining room, and cool the fresh air entering the air conditioner indoor unit, thereby improving the energy efficiency level of the kitchen air conditioning cooling state. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0022] Figure 2 This is a schematic structural diagram of a fume absorbing assembly according to Embodiment 1 of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the second embodiment of the present invention. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below with reference to the accompanying drawings.

[0025] Embodiment 1:

[0026] 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 and a second heat exchanger 13. The compressor 11, the first heat exchanger 12 and the second heat exchanger 13 are connected through a refrigerant pipeline 14. A throttling device 100 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.

[0027] The air conditioner 10 is provided with a first fan 15 and an air outlet passage, and the air outlet passage is located downstream of the air outlet of the first fan 15, and the first heat exchanger 12 is installed in the air outlet passage. The housing of the air conditioner 10 is provided with an air outlet 16, a return air outlet 17 and an air inlet 18, the air outlet 16 is the air outlet of the air outlet passage, the air outlet 16 is connected to the kitchen room 8, and the return air outlet 17 and the air inlet 18 are fluidically connected to the air outlet passage through the first fan 15. The air in the kitchen room 8 enters the air conditioner 10 through the return air outlet 17, and a filter 5 is installed at the return air outlet 17 in order to purify the kitchen air entering the air conditioner 10.

[0028] In addition, in order to switch the working mode, a first air valve 31 is installed at the return air port 17, a second air valve 32 is installed at the air inlet 18, and an electric control component 4 for controlling the opening and closing of the first air valve 31 and the second air valve 32 is installed on the air conditioner indoor unit 10. The electric control component 4 controls the opening and closing of the air valve, which is a conventional design and will not be described in detail here.

[0029] The air conditioning assembly 1 of this embodiment also includes a total heat exchanger 19, which has a first air inlet 191 and a first air outlet 192 that are interconnected, and a second air inlet 193 and a second air outlet 194 that are interconnected. Among them, the first air inlet 191 is connected to the outside, the second air inlet 193 is connected to the indoor space 9 outside the kitchen through the return air duct 7, the first air outlet 192 is connected to the air inlet 18 of the air conditioner 10, and the second air outlet 194 is connected to the outside. A second fan 195 is installed inside the total heat exchanger 19, and the second fan 195 is arranged in the air duct between the second air inlet 193 and the second air outlet 194 and the air outlet direction is toward the second air outlet 194. Outdoor fresh air can enter the air conditioner 10 through the first air inlet 191. In order to purify the outdoor fresh air, a fresh air purification unit 196 is installed at the first air inlet 191 of the total heat exchanger 19. In addition, the indoor space 9 outside the kitchen mentioned above can be a living room or a dining room.

[0030] The air conditioner indoor unit 10 and the total heat exchanger 19 of this embodiment are installed in the kitchen ceiling.

[0031] The oil fume extraction assembly 2 of this embodiment includes a housing 20 and an oil fume extraction fan 21 installed in the housing, and the compressor 11 of the air conditioning assembly 1 is integrated on the housing 20. A smoke exhaust passage 22 is formed inside the housing 20 and downstream of the oil fume extraction fan 21. The second heat exchanger 13 and the oil fume purification device 23 are installed in the smoke exhaust passage 22. In addition, along the path of oil fume flow, the oil fume purification device 23 is located upstream of the second heat exchanger 13, so as to prevent the oil fume from contaminating the second heat exchanger 13.

[0032] In this embodiment, the first heat exchanger 12 is an evaporator, and the second heat exchanger 13 is a condenser. Thus, after the compressor 11 is started, cold air is blown out from the air outlet 16 of the air conditioner indoor unit 10 to replenish the kitchen room 8. 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 externally connected to a drain pipe 6, and the condensed water is discharged to the outside through the drain pipe 6.

[0033] The system works in the following mode:

[0034] In the kitchen, the circulating cooling mode is as follows: the first air valve 31 and the first fan 15 are opened, the second air valve 32 and the second fan 195 are closed, and the fume extractor fan 21 is opened. At this time, the outdoor fresh air cannot enter the air conditioner 10, and the indoor return air from the kitchen 8 enters the air conditioner 10 through the return air port 17. The return air is sucked into the air outlet channel by the first fan 15, and blown out from the air outlet 16 after passing through the first heat exchanger 12, providing cold air to the kitchen 8. 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.

[0035] In the kitchen internal circulation dehumidification mode, the first air valve 31 and the first fan 15 are opened, the second air valve 32 and the second fan 195 are closed, and the range hood exhaust fan 21 is turned on. Compared with the internal circulation refrigeration mode, the air volume of the first fan 15 is smaller and the dehumidification effect is more obvious.

[0036] Fresh air cooling mode: the first air valve 31 is closed, the second air valve 32 is opened, the first fan 15 and the second fan 195 are both opened, and the fume extractor fan 21 is opened. At this time, the return air in the kitchen room 8 cannot enter the air conditioner 10, and the outdoor fresh air enters the air conditioner 10 through the air inlet 18. The fresh air is sucked into the air outlet channel by the first fan 15, and blown out from the air outlet 16 after passing through the first heat exchanger 12, providing cold air to the kitchen room 8. The return air in the living room or dining room enters the total heat exchanger 19 from the second air inlet 193, and is discharged to the outside through the second air outlet 194 under the action of the second fan 195. If the air temperature in the living room or dining room is low, the return air in the living room or dining room can also cool down the fresh air coming in from the outside after entering the total heat exchanger 19, thereby improving the energy efficiency level of the kitchen air conditioner in the cooling state. At the same time, the fume in the exhaust channel 22 takes away the heat of the second heat exchanger 13, thereby further improving the energy efficiency of the air conditioner.

[0037] Embodiment 2:

[0038] like Figure 3 As shown, in this embodiment, the inlet end of the return air duct 7 is connected to the indoor space 9 outside the kitchen, and the outlet end of the return air duct 7 is divided into two paths, one of which is connected to the return air port 17 of the air conditioner indoor unit 10, and the other is connected to the second air inlet 193 of the total heat exchanger 19. It can be seen that compared with the first embodiment, the return air port 17 of the air conditioner indoor unit of this embodiment is connected to the indoor space 9 outside the kitchen. The indoor space 9 is also a living room or a dining room, and the air conditioning return air is cleaner. Accordingly, the working mode of the system is as follows:

[0039] Indoor air cooling mode: the first air valve 31 and the first fan 15 are opened, the second air valve 32 and the second fan 195 are closed, the fume exhaust fan 21 is opened, the outdoor fresh air cannot enter the air conditioner 10, the indoor return air from the living room or dining room enters the air conditioner 10 through the return air port 17, the return air is sucked into the air outlet channel by the first fan 15, and blows out from the air outlet 16 after passing through the first heat exchanger 12, providing cold air to the kitchen 8. 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.

[0040] Fresh air cooling mode: the first air valve 31 is closed, the second air valve 32 is opened, the first fan 15 and the second fan 195 are both opened, the fume extractor fan 21 is opened, and the outdoor fresh air enters the air conditioner 10 through the air inlet 18. The fresh air is sucked into the air outlet channel by the first fan 15, and blown out from the air outlet 16 after passing through the first heat exchanger 12, providing cold air to the kitchen room 8. The return air from the living room or dining room enters the total heat exchanger 19 from the second air inlet 193, and is discharged to the outside through the second air outlet 194 under the action of the second fan 195. 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.

Claims

1. A kitchen air conditioning system with full heat exchange, comprising an air conditioning assembly (1), wherein the air conditioning assembly (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 a first fan (15) is installed inside the air conditioner indoor unit (10), characterized in that: The first heat exchanger (12) is installed in an air outlet channel downstream of the first fan (15), and the air outlet channel has an air outlet (16) connected to the kitchen room (8). The air conditioner indoor unit (10) is provided with a return air port (17) and an air inlet (18), and the return air port (17) and the air inlet (18) are fluidically connected to the air outlet channel through the first fan (15). The air conditioning component (1) also includes a total heat exchanger (19), and the total heat exchanger (19) has a first air inlet (191) and a first air outlet (192) that are connected to each other, and a second air inlet (193) and a second air outlet (194) that are connected to each other. The first air inlet (191) is connected to the outside of the room, and the second air inlet (193) is connected to the outside of the kitchen. The air conditioner (10) is connected to an indoor space (9); the first air outlet (192) is connected to an air inlet (18) of an indoor unit of the air conditioner (10); the second air outlet (194) is connected to the outdoors; a first air valve (31) is installed at the return air outlet (17) of the indoor unit of the air conditioner (10); a second air valve (32) is installed at the air inlet (18) of the indoor unit of the air conditioner (10); an electric control component (4) for controlling the first air valve (31) and the second air valve (32) is installed on the indoor unit of the air conditioner (10); a second fan (195) is installed inside the total heat exchanger (19); the second fan (195) is arranged in an air duct between the second air inlet (193) and the second air outlet (194), and the air outlet direction is toward the second air outlet (194).

2. The kitchen air conditioning system with full heat exchange according to claim 1, characterized in that: The system further comprises an oil fume suction component (2), the oil fume suction component (2) comprising a casing (20) and an oil fume suction fan (21) installed in the casing, a smoke exhaust passage (22) is formed inside the casing (20) and downstream of the oil fume suction fan (21), and the second heat exchanger (13) is installed in the smoke exhaust passage (22).

3. The kitchen air conditioning system with full heat exchange according to claim 2, characterized in that: An oil fume purification device (23) is installed in the exhaust passage (22), and along the path where the oil fume flows, the oil fume purification device (23) is located upstream of the second heat exchanger (13).

4. The kitchen air conditioning system with full heat exchange according to claim 2, characterized in that: The compressor (11) is integrated on the oil fume suction component (2).

5. The kitchen air conditioning system with full heat exchange according to claim 1, characterized in that: A filter (5) is installed at the return air inlet (17) of the air conditioner indoor unit (10), and a fresh air purification unit (196) is installed at the first air inlet (191) of the total heat exchanger (19).

6. 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 (6) for discharging condensed water on the first heat exchanger (12) to the outside of the room.

7. The kitchen air conditioning system with full heat exchange according to claim 1, characterized in that: The air outlet passage is formed inside the air conditioner indoor unit (10), and an air outlet (16) of the air outlet passage is provided on the shell of the air conditioner indoor unit (10).

8. 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 (19) are installed in the kitchen ceiling.

9. The kitchen air conditioning system with full heat exchange according to claim 1, characterized in that: The return air outlet (17) of the air conditioner indoor unit (10) is connected to the kitchen room (8).

10. The kitchen air conditioning system with full heat exchange according to claim 1, characterized in that: The return air outlet (17) of the air conditioner indoor unit (10) is connected to the indoor space (9) outside the kitchen.

11. The kitchen air conditioning system with full heat exchange according to claim 10, characterized in that: It also includes a return air duct (7), the inlet end of the return air duct (7) is connected to the indoor space (9) outside the kitchen, and the outlet end of the return air duct (7) is divided into two paths, one of which is connected to the return air port (17) of the air conditioner indoor unit (10), and the other is connected to the second air inlet (193) of the total heat exchanger (19).

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

13. The kitchen air conditioning system with full heat exchange according to any one of claims 1 to 12, characterized in that: A throttling device (100) is installed on the refrigerant pipeline (14) between the first heat exchanger (12) and the second heat exchanger (13).

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