Kitchen air conditioning system

Abstract

A kitchen air conditioning system, wherein a compressor, a first heat exchanger and a second heat exchanger of an air conditioning component are connected through a refrigerant pipeline, a fan and a smoke exhaust channel are arranged in a casing of a fume suction component, the smoke exhaust channel includes a first smoke exhaust channel and a second smoke exhaust channel, a first heat exchanger is arranged in the first smoke exhaust channel, a first air duct switching valve for switching one of the first smoke exhaust channel and the second smoke exhaust channel to be connected to the fan outlet is installed at the rear end of the fan outlet, the fan is a centrifugal fan, and a volute tongue is installed at the fan outlet to realize the switching of the smoke exhaust channel by cooperating with the first air duct switching valve. The advantages of the present invention are: when the air conditioner is turned on, the kitchen air conditioning system opens the first smoke exhaust channel by switching the smoke exhaust channel, which can improve the heat exchange effect of the first heat exchanger, and the smoke exhaust channel is switched by the air duct switching valve in cooperation with the fixed volute tongue, and the switching method is relatively novel and reliable.

Description

Technical Field

[0001] The invention relates to a kitchen air conditioning system. 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. Existing kitchen air conditioners are often independent of the kitchen range hood, and there is no mutual coordination between the two. For integrated kitchen air conditioners, due to limited installation space, the heat generated during operation cannot be taken away in a timely and effective manner, thus affecting the use effect of the air conditioner. For this purpose, the prior art has disclosed a kitchen air conditioning system in which a heat exchanger is installed inside the range hood. When working in the cooling mode, the heat exchanger inside the range hood is used as a condenser, and the heat generated by it can be carried away by the oil smoke, thereby improving the energy efficiency of the air conditioner. Since this kitchen air conditioning system can work only in the oil smoke mode, or in the mode in which the range hood and the air conditioner are started at the same time, two smoke exhaust channels are provided inside the range hood. In the oil smoke mode, the air conditioning component is not enabled. In order to avoid oil smoke contaminating the heat exchanger inside the range hood, it is necessary to switch the flue in different working modes. At present, the flue switching is usually carried out by using an air duct switching valve plate, and two different switching valve plates are used for the two smoke exhaust channels. This air duct switching method is relatively conventional, and the structure is relatively complex and the cost is relatively high. In summary, further improvements need to be made to the existing kitchen air conditioning system. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a kitchen air conditioning system capable of realizing flue switching through the cooperation of an air duct switching valve and a volute tongue in view of the above-mentioned existing technical status.

[0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: the kitchen air conditioning system includes an air conditioning component and an oil fume suction component, the air conditioning component includes 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 oil fume suction component has a casing, a fan and a smoke exhaust channel arranged at the rear end of the fan are arranged in the casing, and it is characterized in that: the smoke exhaust channel includes a first smoke exhaust channel and a second smoke exhaust channel, the first heat exchanger is arranged in the first smoke exhaust channel, and a first air duct switching valve for switching one of the first smoke exhaust channel and the second smoke exhaust channel to be connected to the fan outlet is installed at the rear end of the fan outlet, the fan is a centrifugal fan, and the fan outlet is installed with a volute tongue for realizing the switching of the smoke exhaust channel by cooperating with the first air duct switching valve.

[0005] Preferably, the volute tongue is a fixed volute tongue fixed to the air outlet of the fan. When the first smoke exhaust channel is opened, the first air duct switching valve is switched to contact with the fixed volute tongue and closes the entrance of the second smoke exhaust channel. When the second smoke exhaust channel is opened, the first air duct switching valve is switched to separate from the fixed volute tongue and closes the entrance of the first smoke exhaust channel.

[0006] In order to improve the integration of the system, the housing is provided with an air outlet channel for fluid communication with the kitchen, the second heat exchanger is arranged in the air outlet channel, and an air supply fan is installed in the air outlet channel. In this way, the second heat exchanger of the air conditioning component is also integrated in the range fumes suction component, and the system structure is more compact.

[0007] Further preferably, an air inlet and an air outlet of the air outlet channel are provided on the casing.

[0008] In order to achieve indoor air intake or outdoor air intake, the air inlet is fluidly connected with the interior of the kitchen or fluidly connected with the exterior of the kitchen.

[0009] In order to enable the first smoke exhaust channel and the second smoke exhaust channel to share a smoke exhaust port, the first smoke exhaust channel and the second smoke exhaust channel share a smoke exhaust pipe, and a second air duct switching valve for switching one of the first smoke exhaust channel and the second smoke exhaust channel to be connected to the smoke exhaust pipe is installed at the outlet of the first smoke exhaust channel and the outlet of the second smoke exhaust channel.

[0010] The first smoke exhaust channel and the second smoke exhaust channel may be distributed in a variety of ways. Preferably, both the first smoke exhaust channel and the second smoke exhaust channel are vertical channels and are distributed left to right or front to back.

[0011] In order to prevent the oil smoke from contaminating the first heat exchanger, an oil smoke purification device is installed in the first smoke exhaust channel, and the oil smoke purification device is arranged upstream of the first heat exchanger along the path through which the oil smoke flows.

[0012] The compressor can be installed in multiple positions. Preferably, the compressor is arranged outside the casing of the oil fume extraction assembly and is arranged adjacent to the casing or installed in the casing. In this way, the system integration can be improved and the installation is more convenient.

[0013] In order to enable the system to switch between cooling and heating modes, a four-way valve for switching the air-conditioning mode is installed on the refrigerant pipeline.

[0014] Compared with the prior art, the advantages of the present invention are: the first heat exchanger of the kitchen air conditioning system is arranged in the first smoke exhaust channel. When the air conditioner is turned on, the first smoke exhaust channel is opened by switching the smoke exhaust channel, which can improve the heat exchange effect of the first heat exchanger. Moreover, the smoke exhaust channel is switched by the air duct switching valve in cooperation with the fixed volute of the fan, and the switching method is relatively novel and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention when the first smoke exhaust channel is open;

[0016] Figure 2 It is a schematic diagram of the structure of an embodiment of the present invention when the second smoke exhaust channel is in an open state;

[0017] Figure 3 Schematic diagram of the structure of the air outlet channel according to an embodiment of the present invention. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below with reference to the accompanying drawings.

[0019] like Figures 1 to 3 As shown, the kitchen air conditioning system of this embodiment includes an air conditioning component and a fume extraction component. The air conditioning component includes 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 four-way valve 15 is installed on the refrigerant pipeline 14. Both ends of the four-way valve 15 are connected to the compressor 11, and the other two ends of the four-way valve are respectively connected to the first heat exchanger 12 and the second heat exchanger 13. A throttling component (not shown in the figure) is installed on the refrigerant pipeline 14 between the first heat exchanger 12 and the second heat exchanger 13. A refrigerant flows through the refrigerant channel 14. Common refrigerants can be water, ethylene glycol or propylene glycol, etc. By switching the four-way valve 15, the system can switch between cooling mode and heating mode. In cooling mode, the first heat exchanger 12 is a condenser and the second heat exchanger 13 is an evaporator. In heating mode, the first heat exchanger 12 is an evaporator and the second heat exchanger 13 is a condenser. The specific working principle of the air conditioning assembly 1 is the same as that of the existing air conditioner and will not be described in detail here.

[0020] The oil fume suction assembly 2 has a housing 20, in which a fan 25 is arranged. The fan 25 is a centrifugal fan. A smoke exhaust channel is arranged downstream of the fan outlet inside the housing 20. The smoke exhaust channel specifically includes a first smoke exhaust channel 211 and a second smoke exhaust channel 212. Figure 1The direction indicated by the middle arrow A is rightward, and the first smoke exhaust channel 211 and the second smoke exhaust channel 212 are both vertical channels and are distributed left and right with respect to each other. The first heat exchanger 12 and the oil fume purification device 6 are installed in the first smoke exhaust channel 211, and the oil fume purification device 6 is arranged upstream of the first heat exchanger 12 along the path through which the oil fume flows, so as to prevent the oil fume from contaminating the first heat exchanger 12. The compressor 11 of this embodiment is arranged on the right side of the casing 20 and is arranged close to the casing.

[0021] An air outlet passage 22 for fluid communication with the kitchen is provided in the housing 20, the second heat exchanger 13 is provided in the air outlet passage 22, and an air supply fan 26 is installed in the air outlet passage 22. An air inlet 23 and an air outlet 24 of the air outlet passage 22 are provided on the housing 20. The air inlet 23 can be fluidly communicated with the kitchen interior, and can also be fluidly communicated with the kitchen exterior.

[0022] A first air duct switching valve 3 is installed at the rear end of the air outlet of the fan 25, and a volute tongue matched with the first air duct switching valve 3 is installed at the air outlet of the fan 25. The volute tongue in this embodiment is a fixed volute tongue 4. The first air duct switching valve 3 and the fixed volute tongue 4 are matched to realize the switching of the entrances of the first smoke exhaust channel 211 and the second smoke exhaust channel 212. The first smoke exhaust channel 211 and the second smoke exhaust channel 212 share a smoke exhaust pipe (not shown in the figure) to exhaust oil smoke outward. A second air duct switching valve 5 is installed at the outlet of the first smoke exhaust channel 211 and the outlet of the second smoke exhaust channel 212, and the outlet switching of the first smoke exhaust channel 211 and the second smoke exhaust channel 212 is realized by the second air duct switching valve 5.

[0023] Taking the cooling mode as an example, the working principle of the kitchen air conditioning system is as follows:

[0024] When both the range hood and air conditioner are turned on, Figure 1 As shown, the first air duct switching valve 3 rotates to the right until it contacts the fixed volute 4, so that the inlet of the first smoke exhaust channel 211 is connected to the fan outlet, and the inlet of the second smoke exhaust channel 212 is not connected to the fan outlet. The second air duct switching valve 5 rotates to the right, so that the outlet of the first smoke exhaust channel 211 is connected to the smoke exhaust pipe, and the outlet of the second smoke exhaust channel 212 is not connected to the smoke exhaust pipe, that is, the first smoke exhaust channel 211 is opened and the second smoke exhaust channel 212 is closed. At this time, the oil smoke is discharged through the first smoke exhaust channel 211, and the oil smoke airflow passing over the surface of the first heat exchanger 12 can cool and dissipate the heat of the first heat exchanger 12, thereby reducing the temperature of the coolant flowing through the first heat exchanger 12, thereby improving the heat exchange effect of the first heat exchanger 12, and then improving the air conditioning energy efficiency. At the same time, under the action of the air supply fan 26, the cold air comes out of the air outlet 24 and is transported to the kitchen room.

[0025] When the range hood is turned on only, Figure 2As shown, the first air duct switching valve 3 and the second air duct switching valve 5 both rotate to the left, the first smoke exhaust channel 211 is closed, and the second smoke exhaust channel 212 is opened. At this time, the oil smoke sucked in by the fan 25 is discharged through the second smoke exhaust channel 212.

[0026] In the heating mode, the air duct switching method is the same as the cooling mode, except that the air outlet 24 delivers warm air to the kitchen, and the cold air of the first heat exchanger 12 is discharged along with the oil smoke.

[0027] The "fluid connection" referred to in the present invention refers to the spatial position relationship between two parts or parts (hereinafter collectively referred to as the first part and the second part respectively), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path or / and be transported to the second part. The first part and the second part can be directly connected, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, duct, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.

Claims

1. A kitchen air conditioning system, comprising an air conditioning component and an oil fume suction component, wherein the air conditioning component comprises 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 oil fume suction component comprises a casing (20), wherein a fan (25) and an exhaust passage arranged at the rear end of the fan are arranged in the casing (20), and the characteristics are as follows: The smoke exhaust channel comprises a first smoke exhaust channel (211) and a second smoke exhaust channel (212); the first heat exchanger (12) is arranged in the first smoke exhaust channel (211); a first air duct switching valve (3) for switching one of the first smoke exhaust channel (211) and the second smoke exhaust channel (212) to be connected to the air outlet of the fan (25) is installed at the rear end of the air outlet of the fan (25); the fan (25) is a centrifugal fan; and the air outlet of the fan (25) is installed with a The invention relates to a volute tongue which cooperates with a first air duct switching valve (3) to realize switching of a smoke exhaust channel. The first smoke exhaust channel (211) and the second smoke exhaust channel (212) share a smoke exhaust pipe. A second air duct switching valve (5) for switching one of the first smoke exhaust channel and the second smoke exhaust channel to be connected to the smoke exhaust pipe is installed at the outlet of the first smoke exhaust channel (211) and the outlet of the second smoke exhaust channel (212). A four-way valve (15) for switching air conditioning modes is installed on the refrigerant pipeline (14).

2. The kitchen air conditioning system according to claim 1, characterized in that: The volute tongue is a fixed volute tongue (4) fixed to the air outlet of the fan (25); when the first smoke exhaust channel (211) is in an open state, the first air duct switching valve (3) switches to contact with the fixed volute tongue (4) and closes the entrance of the second smoke exhaust channel (212); when the second smoke exhaust channel (212) is in an open state, the first air duct switching valve (3) switches to separate from the fixed volute tongue (4) and closes the entrance of the first smoke exhaust channel (211).

3. The kitchen air conditioning system according to claim 1, characterized in that: An air outlet passage (22) for fluid communication with the kitchen room is provided in the casing (20); the second heat exchanger (13) is arranged in the air outlet passage (22); and an air supply fan (26) is installed in the air outlet passage (22).

4. The kitchen air conditioning system according to claim 3, characterized in that: An air inlet (23) and an air outlet (24) of the air outlet channel (22) are provided on the housing (20).

5. The kitchen air conditioning system according to claim 4, characterized in that: The air inlet (23) is in fluid communication with the inside of the kitchen or with the outside of the kitchen.

6. The kitchen air conditioning system according to claim 1, characterized in that: The first smoke exhaust channel (211) and the second smoke exhaust channel (212) are both vertical channels and are distributed left and right or front and back with respect to each other.

7. The kitchen air conditioning system according to claim 1, characterized in that: An oil fume purification device (6) is installed in the first smoke exhaust channel (211), and along the path through which the oil fume flows, the oil fume purification device (6) is arranged upstream of the first heat exchanger (12).

8. The kitchen air conditioning system according to claim 1, characterized in that: The compressor (11) is arranged outside the casing (20) of the oil fume extraction component and is arranged adjacent to the casing or installed in the casing.

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