A kitchen air conditioning system with full heat exchange

Abstract

A kitchen air conditioning system with full heat exchange, the air conditioning component includes an air conditioner, a compressor, a first heat exchanger and a second heat exchanger, the first heat exchanger is installed in the air outlet channel of the air conditioner, the air conditioning component also includes a full heat exchanger, the air from the indoor space outside the kitchen is divided into two return air paths, one of which can be discharged outdoors through the full heat exchanger, and the other can enter the air conditioner and be supplemented to the kitchen or the indoor space outside the kitchen, and the fresh air from the outdoors 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 the air conditioner with the full heat exchanger, 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 conditioning in the refrigeration state, in addition, the use of return air refrigeration in the space outside the kitchen, such as 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 indoor air cooling, fresh air cooling and whole-house fresh air mode in response to 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, 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, and is characterized in that: the first heat exchanger is installed in the air outlet channel of the air conditioner indoor unit, the air conditioning component also includes a total 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 to the outdoors through the total 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 fresh air from the outdoors can be supplemented to the kitchen room or the indoor space outside the kitchen through the total heat exchanger and the air conditioner indoor unit in turn.

[0006] In order to make the system more beautiful, the air conditioner indoor unit and the total heat exchanger are installed on the kitchen ceiling.

[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] In order to realize the switching of air ducts inside the total heat exchanger, the total heat exchanger includes a first air inlet, a first air outlet, a second air inlet and a vent, 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, and the first air inlet is connected to the first air outlet, the second air inlet is connected to the indoor space outside the kitchen, and a fifth air valve is installed at the vent, and by switching the fifth air valve, one of the first air inlet and the second air inlet can be connected to the vent.

[0010] Further preferably, a second fan is installed inside the total heat exchanger, and the second fan is arranged in the air duct between the second air inlet and the vent with the air outlet direction toward the vent. When the first air inlet is connected to the vent, the fifth air valve closes the air outlet of the second fan to block the second air inlet and the vent. When the first air inlet is blocked from the vent, the fifth air valve opens the air outlet of the second fan to connect the second air inlet and the vent.

[0011] 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.

[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] 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.

[0014] 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.

[0015] In order to improve the system integration, the compressor is integrated on the oil fume suction component.

[0016] 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.

[0017] 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.

[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, 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 conditioning refrigeration state. In addition, by utilizing the space outside the kitchen such as the living room and dining room for return air cooling, the service life of the evaporator in the refrigeration system can be significantly improved. 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 Embodiment 2 of the present invention;

[0024] Figure 4 It is a partial structural schematic diagram of the total heat exchanger of the second embodiment of the present invention. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below with reference to the accompanying drawings.

[0026] Embodiment 1:

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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 vent 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 vent 154 and the air outlet direction is toward the vent 154. 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 duct 8. In order to purify the outdoor fresh air, a fresh air purification unit 156 is installed at the first air inlet 151 of the total heat exchanger 15. In addition, the indoor space b outside the kitchen mentioned above can be a living room or a dining room.

[0032] The air conditioner indoor unit 10 and the total heat exchanger 15 of this embodiment are installed in the kitchen ceiling.

[0033] 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.

[0034] 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 outlet channel of the air conditioner 10 to supplement the kitchen room 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 10. In order to drain the condensed water smoothly, the air conditioner 10 is connected to a drain pipe 9, and the condensed water is discharged to the outside through the drain pipe 9.

[0035] The system works in the following mode:

[0036] In the 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, the first fan 16 is opened, the second fan 155 is closed, and the fume exhaust fan 21 is opened. 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.

[0037] 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, the first fan 16 is opened, the second fan 155 is opened, and the fume exhaust fan 21 is opened. At this time, the return air of the indoor space b outside the kitchen cannot enter the air conditioner 10, but can only be discharged to the outside through the vent 154 of the total heat exchanger 15. The outdoor fresh air enters the air conditioner 10 from the air inlet 18 of the air conditioner 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 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. In addition, in the fresh air cooling mode, the second fan 155 can also be selected not to be opened. At this time, the air in the indoor space b outside the kitchen is not returned.

[0038] 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, the first fan 16 and the second fan 155 are opened, and the range hood fan 21 is closed. At this time, the outdoor fresh air passes through the total heat exchanger 15 and enters the air conditioner 10 from the air inlet 18 of the air conditioner 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 then discharged to the outside from the vent 154.

[0039] Embodiment 2:

[0040] like Figure 3 and 4 As shown, the total heat exchanger 15 of this embodiment is equipped with a fifth air valve 35 at the vent 154. By switching the fifth air valve 35, one of the first air inlet 151 and the second air inlet 153 can be connected to the vent 154. The fifth air valve 35 is controlled by the electric control component 5, and can also be controlled by a controller (not shown) on the oil fume suction component 2. Figure 3 As shown, when the first air inlet 151 is connected to the vent 154, the fifth air valve 35 closes the air outlet of the second fan 155 to block the second air inlet 153 and the vent 154; when the first air inlet 151 is blocked from the vent 154, the fifth air valve 35 opens the air outlet of the second fan 155 to connect the second air inlet 153 and the vent 154.

[0041] The system works in the following mode:

[0042] In the 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, the first fan 16 is turned on, the second fan 155 is turned off, the fume exhaust fan 21 is turned on, and the fifth air valve 35 rotates to open the position of the air outlet of the second fan 155. At this time, the working principle is the same as the indoor air cooling mode of Example 1, and will not be described in detail here.

[0043] 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, the first fan 16 is opened, the second fan 155 is opened, the range hood fan 21 is opened, and the fifth air valve 35 rotates to open the air outlet of the second fan 155. At this time, the working principle is the same as the fresh air cooling mode of the first embodiment, and will not be described in detail here. Similarly, the second fan 155 can also be selected not to be opened.

[0044] 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, the first fan 16 is turned on, the second fan 15 is turned off, the range hood fan 21 is turned off, and the fifth air valve 35 rotates to close the position of the air outlet of the second fan 155. At this time, outdoor fresh air can enter the total heat exchanger 15 through the first air inlet 151 and the vent 154 to meet the fresh air volume requirement. The rest of the working principles are the same as the whole-house fresh air mode of Example 1 and will not be described in detail here.

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 wherein: The first heat exchanger (12) is installed in the air outlet passage of the air conditioner indoor unit (10). The air conditioning assembly (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 to the outside through the total heat exchanger (15), and the other can enter the air conditioner indoor unit (10) and be supplemented to the kitchen indoor space (a) or the indoor space (b) outside the kitchen. The fresh air from the outside can be supplemented to the kitchen indoor space (a) or the indoor space (b) outside the kitchen through the total heat exchanger (15) and the air conditioner indoor unit (10) in turn. Indoor space (b), the air conditioner indoor unit (10) comprises a first fan (16), a return air port (17) and an air inlet (18), the air outlet channel is formed downstream of the air outlet of the first fan (16), the return air port (17) and the air inlet (18) are both fluidically connected to the air outlet channel through the first fan (16), the return air port (17) is connected to the indoor space (b) outside the kitchen, a first air valve (31) is installed at the return air port (17), the air inlet (18) is used to be connected to the air outlet of the total heat exchanger (15), and a second air valve (31) is installed at the air inlet (18) (32), an air volume distribution box (4) is installed at the outlet of the air outlet channel of the indoor unit (10) of the air conditioner, 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, and a fourth air valve (34) is installed at the outlet of the air volume distribution box (4) connected to the indoor space (a) of the kitchen, and the total heat exchanger (15) includes a first air inlet (151), a first air outlet (152), a second air inlet (153) and a vent (154), wherein the first air inlet (151) is connected to the outside, and the first air outlet (152) is connected to the indoor unit (10) of the air conditioner. The air inlet (18) of (10) is connected, and the first air inlet (151) is connected to the first air outlet (152), the second air inlet (153) is connected to the indoor space (b) outside the kitchen, and a fifth air valve (35) is installed on the ventilation port (154). By switching the fifth air valve (35), one of the first air inlet (151) and the second air inlet (153) can be connected to the ventilation port (154), and a throttling device (19) is installed on the refrigerant pipeline (14) between the first heat exchanger (12) and the second heat exchanger (13).

2. 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.

3. The kitchen air conditioning system with full heat exchange according to claim 1, characterized in that: 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 vent (154) and the air outlet direction is toward the vent (154). When the first air inlet (151) and the vent (154) are connected, the fifth air valve (35) closes the air outlet of the second fan (155) so that the second air inlet (153) and the vent (154) are blocked. When the first air inlet (151) and the vent (154) are blocked, the fifth air valve (35) opens the air outlet of the second fan (155) so that the second air inlet (153) and the vent (154) are connected.

4. 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.

5. 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 (156) is installed at the first air inlet (151) of the total heat exchanger (15).

6. 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).

7. 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).

8. The kitchen air conditioning system with full heat exchange according to claim 7, characterized in that: The compressor (11) is integrated on the oil fume suction component (2).

9. The kitchen air conditioning system with full heat exchange according to claim 7, 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).

10. 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.

11. 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.

Images