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 first heat exchanger is arranged in the first smoke exhaust channel, a 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, and a movable volute tongue that can move along the circumference of the fan volute under the drive of a driving mechanism is installed at the fan outlet, and the movable volute tongue can realize the switching of the smoke exhaust channel by cooperating with the duct switching valve. The advantage of the present invention is that the kitchen air conditioning system realizes the switching of the smoke exhaust channel by cooperating with the movable volute tongue and the duct switching valve, and the switching method is relatively novel. After adopting the movable volute tongue, no matter switching to the first or second smoke exhaust channel, it can always ensure that the fan outlet can form a stable airflow, so that the airflow can smoothly enter the corresponding smoke exhaust channel.

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 reason, 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 taken 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 from contaminating the heat exchanger inside the range hood, it is necessary to switch the flue in different working modes. At present, the flue switching valve is usually used for flue switching, and two different switching valves are used for the two smoke exhaust channels. This duct switching method is relatively common and is suitable for occasions where the fan outlet is far away from the smoke exhaust channel entrance. In the case where the fan outlet is adjacent to the smoke exhaust channel entrance, if the fan outlet structure is not changed accordingly, it is difficult to ensure that the airflow from the fan outlet enters the smoke exhaust channel stably. In summary, there is a need to further improve 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 that can realize flue switching through the cooperation of an air duct switching valve and a movable 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 comprises an air conditioning component and an oil fume suction component, the air conditioning component comprises 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 the characteristic is that: the smoke exhaust channel comprises a first smoke exhaust channel and a second smoke exhaust channel, the first heat exchanger is arranged in the first smoke exhaust channel, and an 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, and an active volute tongue that can move along the circumference of the fan volute under the drive of a driving mechanism is installed at the fan outlet, and the active volute tongue can realize the switching of the smoke exhaust channel by cooperating with the air duct switching valve.

[0005] Preferably, when the first smoke exhaust channel is in the open state, the air duct switching valve switches to contact with the downwardly moving movable volute tongue and closes the entrance of the second smoke exhaust channel; when the second smoke exhaust channel is in the open state, the air duct switching valve switches to close the entrance of the first smoke exhaust channel, and the movable volute tongue moves upward to be close to the entrance of the second smoke exhaust channel.

[0006] The driving mechanism can have a variety of structures. Preferably, the driving mechanism includes a motor, a gear and a movable baffle. The fan is a centrifugal fan. The motor is installed outside the fan. The gear is installed on the output shaft of the motor. The movable baffle is arranged along the circumference of the fan volute and is adapted to the fan volute profile. The side of the movable baffle is provided with gear teeth that mesh with the gear. The movable volute tongue is installed at the outer end of the movable baffle. In this way, under the drive of the motor, the movable volute tongue can move synchronously with the movable baffle, thereby adjusting the position of the fan outlet accordingly.

[0007] 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.

[0008] Further preferably, the housing is provided with an air inlet and an air outlet of the air outlet passage, and the air inlet is fluidly connected to the inside of the kitchen or to the outside of the kitchen. In this way, air can be directly discharged from the housing of the range fumes suction assembly, and indoor air intake or outdoor air intake can also be achieved.

[0009] In order to make the first smoke exhaust channel and the second smoke exhaust channel have independent smoke exhaust ports, the outlet of the first smoke exhaust channel constitutes an independent first smoke exhaust port, the outlet of the second smoke exhaust channel constitutes an independent second smoke exhaust port, and the first smoke exhaust port and the second smoke exhaust port are not connected to each other.

[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 kitchen air conditioning system realizes the switching of the smoke exhaust channel through the cooperation of the movable volute tongue and the air duct switching valve. The air duct switching method is relatively novel. After adopting the movable volute tongue that moves along the circumference of the volute, no matter switching to the first or second smoke exhaust channel, it can always ensure that the fan outlet can form a stable airflow so that the airflow can smoothly enter the corresponding smoke exhaust channel. In addition, the first heat exchanger is arranged in the first smoke exhaust channel. When the air conditioner is turned on, the oil smoke entering the first smoke exhaust channel can improve the heat exchange effect of the first heat exchanger, thereby improving the energy efficiency of the air conditioner. 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 It is a structural schematic diagram 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 3As 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 15 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 cold channel 4. 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 1 The 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] An air duct switching valve 3 is installed at the rear end of the air outlet of the fan 25, and a movable volute tongue 4 cooperating with the air duct switching valve 3 is installed at the air outlet of the fan 25. The movable volute tongue 4 can move circumferentially along the fan volute 251 under the drive of the driving mechanism 5. The inlet switching between the first smoke exhaust channel 211 and the second smoke exhaust channel 212 is achieved through the cooperation between the air duct switching valve 3 and the movable volute tongue 4.

[0023] The driving mechanism 5 of this embodiment includes a motor 51, a gear 52 and a movable baffle 53. The motor 51 is installed outside the fan 25, the gear 52 is installed on the output shaft of the motor 51, the movable baffle 53 is arranged along the circumference of the fan volute 251 and is adapted to the fan volute profile, the side of the movable baffle 53 is provided with gear teeth 54 meshing with the gear 52, and the movable volute tongue 4 is installed at the outer end of the movable baffle 53. When the motor 51 is started, the movable volute tongue 4 can move synchronously with the movable baffle 53, thereby changing the position of the fan outlet.

[0024] In addition, the outlet of the first smoke exhaust channel 211 of this embodiment constitutes an independent first smoke exhaust port 213 , and the outlet of the second smoke exhaust channel 212 constitutes an independent second smoke exhaust port 214 . The first smoke exhaust port 213 and the second smoke exhaust port 214 are not connected to each other.

[0025] When both the range hood and air conditioner are turned on, Figure 1 As shown, the motor 51 drives the movable baffle 53 to extend downward, and the movable volute 4 moves downward to the lowest position, and the air duct switching valve 3 rotates rightward to contact the movable volute 4. At this time, the first smoke exhaust channel 211 is opened, the second smoke exhaust channel 212 is closed, and the smoke is discharged through the first smoke exhaust channel 211. In the air conditioning cooling mode, the air outlet 24 blows out cold air, and in the air conditioning heating mode, the air outlet 24 blows out warm air.

[0026] When the range hood is turned on only, Figure 2 As shown, the motor 51 drives the movable baffle 53 to retract upward, and the movable volute tongue 4 moves upward to the highest position, that is, moves to a position close to the entrance of the second smoke exhaust channel 212, and the air duct switching valve 3 rotates to the left to separate from the movable volute tongue 4. At this time, the first smoke exhaust channel 211 is closed, the second smoke exhaust channel 212 is opened, and the oil smoke is discharged through the second smoke exhaust channel 212.

[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 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); a movable volute tongue (4) which can move circumferentially along the fan volute (251) under the drive of a driving mechanism (5) is installed at the air outlet of the fan; the movable volute tongue (4) can realize the switching of the smoke exhaust channel by cooperating with the duct switching valve (3); when the first smoke exhaust channel (211) is opened, the duct switching valve (3) switches to contact with the movable volute tongue (4) which moves downward and closes the entrance of the second smoke exhaust channel (212); in the second smoke exhaust channel (212), the movable volute tongue (4) moves circumferentially along the fan volute (251) under the drive of a driving mechanism (5); the movable volute tongue (4) can realize the switching of the smoke exhaust channel by cooperating with the duct switching valve (3); when the first smoke exhaust channel (211) is opened, the duct switching valve (3) switches to contact with the movable volute tongue (4) which moves downward and closes the entrance of the second smoke exhaust channel (212); ) is in the open state, the air duct switching valve (3) switches to close the entrance of the first smoke exhaust channel (211), the movable volute (4) moves upward to the entrance close to the second smoke exhaust channel (212), the driving mechanism (5) comprises a motor (51), a gear (52) and a movable baffle (53), the fan (25) is a centrifugal fan, the motor (51) is mounted on the outside of the fan (25), the gear (52) is mounted on the output shaft of the motor (51), the movable baffle (53) is arranged along the circumference of the fan volute (251) and is adapted to the fan volute profile, the side of the movable baffle (53) is provided with gear teeth (54) meshing with the gear (52), the movable volute (4) is mounted on the outer end of the movable baffle (53), and a four-way valve (15) for switching the air conditioning mode is installed on the refrigerant pipeline (14).

2. 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).

3. The kitchen air conditioning system according to claim 2, characterized in that: An air inlet (23) and an air outlet (24) of the air outlet channel (22) are provided on the housing (20); the air inlet (23) is in fluid communication with the inside of the kitchen or with the outside of the kitchen.

4. The kitchen air conditioning system according to claim 1, characterized in that: The outlet of the first smoke exhaust channel (211) constitutes an independent first smoke exhaust port (213), and the outlet of the second smoke exhaust channel (212) constitutes an independent second smoke exhaust port (214); the first smoke exhaust port (213) and the second smoke exhaust port (214) are not connected to each other.

5. 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.

6. 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).

7. 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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