Kitchen air conditioning system and control method thereof

Abstract

A kitchen air conditioning system and a control method thereof, wherein the compressor, condenser and evaporator of the air conditioning component are connected through a refrigerant pipeline, the oil fume suction component comprises a housing and an exhaust channel and an air outlet channel arranged inside the housing, the air outlet of the air outlet channel is fluidly connected with the kitchen room, the condenser is arranged in the exhaust channel and the evaporator is arranged in the air outlet channel, the condensed water generated by the evaporator flows into the water inlet of the tee, the first water outlet of the tee is connected with the water inlet of the water distributor, the second water outlet of the tee is connected with the water inlet of the atomizer, the condensed water flowing out of the water outlet of the water distributor can flow to the surface of the condenser, and the atomizer is arranged in the exhaust channel. When the kitchen air conditioning system is working, the oil fume takes away the heat of the condenser, and the condensed water generated by the evaporator can flow into the water distributor and then flow to the surface of the condenser after being diverted by the tee, and can also be discharged from the exhaust channel after being atomized by the atomizer, and in addition, the condensed water treatment can be intelligently controlled.

Description

Technical Field

[0001] The invention relates to an air conditioning system, in particular to a kitchen air conditioning system and a control method thereof. 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.

[0003] The basic form of the existing kitchen air conditioner is not much different from that of ordinary air conditioners. Generally, there are two forms. One is the split type of internal and external units, that is, the external unit is located outdoors and the internal unit is located indoors. The internal and external units each have a motor fan. The connection method of the kitchen air conditioner with split internal and external units needs to be connected through pipes, and holes need to be opened on the wall, which destroys the decoration. An external unit needs to be hung outdoors, which is difficult to install and the structure is not compact enough. The other is the internal and external units are integrated structures. Although the evaporator and condenser of the air conditioner can be installed indoors, a larger area of ​​the wall needs to be destroyed to install the heat exhaust pipe of the condenser, which not only increases the difficulty of installation, but also affects the beauty of the room. In addition, due to the limited space in the kitchen, the volume of the kitchen air conditioner cannot be too large. Therefore, there are major problems in the heat dissipation of the kitchen air conditioner. If the kitchen air conditioner cannot dissipate heat in time during use, the energy efficiency of the air conditioner will be greatly reduced. However, the existing kitchen air conditioner and the range hood work independently of each other, and the two cannot be linked. The heat generated by the kitchen air conditioner cannot be discharged to the outside through the fan of the range hood. Therefore, how to discharge the heat generated by the kitchen air conditioner through the range hood has become a problem that people need to solve urgently.

[0004] Although there are products such as air-conditioning hoods on the market, that is, air-conditioning components are added to the range hood platform, which can realize all the functions of the range hood and the functions of the air conditioner at the same time. However, these air-conditioning hoods often simply merge the functions of the traditional air-conditioning indoor unit and the traditional range hood, and the air-conditioning outdoor unit still needs to be installed separately outdoors. This type of air-conditioning range hood is not integrated enough, and the installation is relatively cumbersome. Moreover, the pipe and line connections between the indoor and outdoor units of the air conditioner will also damage the wall. In addition, during the use of the air-conditioning hood, the evaporator of the air conditioner will produce condensed water, which is currently discharged to the outside through a water pipe. There is no other discharge method, and the condensed water has not been effectively utilized. Summary of the invention

[0005] The first technical problem to be solved by the present invention is to provide a kitchen air conditioning system in which air conditioning condensate is discharged through a smoke exhaust channel and the condensate is used to improve the heat exchange effect of the condenser.

[0006] The second technical problem to be solved by the present invention is to provide a control method for a kitchen air conditioning system capable of intelligently controlling the treatment of air-conditioning condensate water in response to the above-mentioned existing technical status.

[0007] The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: the kitchen air conditioning system includes an air conditioning component and an oil fume suction component, the air conditioning component includes a compressor, a condenser and an evaporator, the compressor, condenser and evaporator are connected by a refrigerant pipeline, the oil fume suction component includes a shell and a smoke exhaust channel arranged inside the shell, and is characterized in that: an air outlet channel is also arranged inside the shell, and the air outlet of the air outlet channel is fluidly connected with the kitchen room, the condenser is arranged in the smoke exhaust channel, the evaporator is arranged in the air outlet channel, the condensed water generated by the evaporator flows into the water inlet of the tee, the first water outlet of the tee is connected to the water inlet of the water distributor, the second water outlet of the tee is connected to the water inlet of the atomizer, the condensed water flowing out from the water outlet of the water distributor can flow to the surface of the condenser, and the atomizer is arranged in the smoke exhaust channel.

[0008] Preferably, a water receiving pan for receiving condensed water generated by the evaporator is installed in the air outlet channel, and the water receiving pan is connected to the water tank. The condensed water flowing from the water receiving pan into the water tank is transported to the water inlet of the tee by a water pump.

[0009] Further preferably, a float switch is installed in the water tank.

[0010] The atomizer may be arranged at different positions of the smoke exhaust passage. Preferably, along the gas flow direction, the atomizer is arranged downstream of the condenser.

[0011] In order to allow the condensed water to flow evenly along the surface of the condenser, the condenser is arranged vertically or inclined relative to the vertical plane. The water distributor is arranged above the condenser. The water distributor is strip-shaped and arranged horizontally along the upper edge of the condenser. The water inlet of the water distributor is connected to the second water outlet of the tee, and the water outlet of the water distributor is evenly spaced along the length direction of the water distributor.

[0012] In order to make the condensed water flow evenly through each flat tube of the condenser, the condenser includes a laterally arranged upper collecting pipe, a lower collecting pipe, and flat tubes arranged in sequence between the upper collecting pipe and the lower collecting pipe, the upper collecting pipe is connected to the lower collecting pipe through the flat tubes, the flat tubes are distributed vertically, and the water outlets correspond to the flat tubes one by one.

[0013] The smoke exhaust channel and the air outlet channel can be distributed in a variety of ways. Preferably, a fume exhaust fan is installed inside the casing, and the smoke exhaust channel and the air outlet channel are arranged above the range hood and distributed left and right with respect to each other. Along the direction of oil fume flow, the smoke exhaust channel is arranged downstream of the air outlet of the range fume exhaust fan.

[0014] Further preferably, the smoke exhaust channel includes a first smoke exhaust channel and a second smoke exhaust channel, and a duct switching valve is installed at the entrance of the first smoke exhaust channel and the second smoke exhaust channel for switching one of the first smoke exhaust channel and the second smoke exhaust channel to be connected to the air outlet of the range fumes exhaust fan, and the condenser is arranged in the first smoke exhaust channel.

[0015] In order to prevent the oil smoke from contaminating the condenser, an electrostatic purification device is further installed in the first smoke exhaust channel, and along the flow direction of the oil smoke, the electrostatic purification device is arranged upstream of the condenser.

[0016] The first smoke exhaust channel and the second smoke exhaust channel may have a variety of smoke exhaust modes. Preferably, the first smoke exhaust channel has a first smoke exhaust port, the second smoke exhaust channel has a second smoke exhaust port, and the first smoke exhaust port and the second smoke exhaust port are independent of each other.

[0017] Preferably, an air inlet and an air outlet of the air outlet passage are provided on the casing, the air inlet is fluidly connected to the inside of the kitchen or to the outside of the kitchen, and the air outlet is arranged on the front side of the casing or on the top of the casing.

[0018] The compressor can be installed in a plurality of different positions. Preferably, an installation cavity isolated from the smoke exhaust passage and the air outlet passage is provided in the casing, and the compressor is integrated in the installation cavity.

[0019] Further preferably, a throttling device is installed on the refrigerant pipeline between the condenser and the evaporator.

[0020] The technical solution adopted by the present invention to solve the second technical problem is: the control method of the kitchen air conditioning system is characterized by comprising the following steps:

[0021] ①、System start;

[0022] ②, determine whether the air conditioner is turned on,

[0023] If yes, proceed to step ③;

[0024] If not, return to step ②;

[0025] ③. The water inlet of the tee is connected to the first water outlet;

[0026] ④. Turn on the water pump;

[0027] ⑤. Determine whether the float switch is touched.

[0028] If yes, go to step ⑥;

[0029] If not, return to step ③;

[0030] ⑥. The water inlet of the tee is connected to the second water outlet;

[0031] 7. Atomizer working;

[0032] ⑧. Determine whether the air conditioning mode is turned off.

[0033] If yes, proceed to step ⑨;

[0034] If not, return to step ⑤;

[0035] ⑨. System shutdown.

[0036] Compared with the prior art, the advantages of the present invention are: the kitchen air conditioning system arranges the condenser in the smoke exhaust channel, and the evaporator in the air outlet channel. The oil smoke can take away the heat of the condenser. The condensed water generated by the evaporator can flow into the water distributor and then flow to the surface of the condenser after being diverted by a three-way diversion, further cooling the condenser, thereby further improving the heat exchange efficiency of the condenser, and the condensed water can be evaporated after being heated, and can also be discharged from the smoke exhaust channel after being atomized by the atomizer. In addition, the condensed water treatment can also be intelligently controlled to ensure that the air-conditioning condensed water can smoothly flow to the condenser or be atomized by the atomizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0038] Figure 2 A schematic diagram of the structure of a range hood according to an embodiment of the present invention;

[0039] Figure 3 for Figure 2 A magnified schematic diagram of part A;

[0040] Figure 4 It is a structural schematic diagram of the air outlet channel according to an embodiment of the present invention;

[0041] Figure 5 is a structural schematic diagram of a condenser according to an embodiment of the present invention;

[0042] Figure 6 It is a structural schematic diagram of a water distributor according to an embodiment of the present invention;

[0043] Figure 7 A side view of a water distributor according to an embodiment of the present invention;

[0044] Figure 8A control logic diagram of a control method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0045] The present invention is further described in detail below with reference to the accompanying drawings.

[0046] 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 condenser 12, and an evaporator 13. The compressor 11, the condenser 12, and the evaporator 13 are connected through a refrigerant pipeline 14. A throttling device 15 is installed on the refrigerant pipeline 14 between the condenser 12 and the evaporator 13. A refrigerant flows through the refrigerant pipeline 14. Common refrigerants can be water, ethylene glycol, or propylene glycol, etc. The specific working principle of the air conditioning component is the same as that of the existing air conditioner, and will not be described in detail here.

[0047] The oil fume extraction assembly of this embodiment has a housing 20, in which an oil fume extraction fan 21 is arranged, and the oil fume extraction fan 21 is installed at the lower part of the housing 20. The upper part of the housing 20 is provided with a mutually isolated smoke exhaust passage 22 and an air outlet passage 23. Along the oil fume flow direction, the smoke exhaust passage 22 is arranged downstream of the air outlet of the oil fume extraction fan 21, and the smoke exhaust passage 22 and the air outlet passage 23 are both located above the oil fume extraction fan 21. Figure 2 The direction indicated by the middle arrow B is right, and the air outlet channel 23 is located on the right side of the smoke exhaust channel 22. A mounting cavity 28 is also provided at the lower part of the housing 20, and the mounting cavity 28 is isolated from the smoke exhaust channel 22 and the air outlet channel 23 and is located below the air outlet channel 23, and the compressor 11 is installed in the mounting cavity 28.

[0048] The smoke exhaust channel 22 of this embodiment includes a first smoke exhaust channel 221 and a second smoke exhaust channel 222. An air channel switching valve 24 is installed at the entrance of the first smoke exhaust channel 221 and the second smoke exhaust channel 222 to switch one of the first smoke exhaust channel 221 and the second smoke exhaust channel 222 to be connected to the air outlet of the oil fume suction fan 21. In this embodiment, a condenser 12 and an electrostatic purification device 25 are installed in the first smoke exhaust channel 221. The condenser 12 is inclined relative to the vertical plane, and the electrostatic purification device 25 is arranged upstream of the condenser 12 along the oil fume flow direction, so as to prevent the oil fume from contaminating the condenser 12.

[0049] In this embodiment, the first smoke exhaust channel 221 has a first smoke exhaust port 223 , and the second smoke exhaust channel 222 has a second smoke exhaust port 224 . The first smoke exhaust port 223 and the second smoke exhaust port 224 are independent of each other and are both connected to the smoke exhaust pipe 10 .

[0050] Combination Figure 4As shown, the housing 20 is provided with an air inlet 231 and an air outlet 232 of the air outlet channel 23. In this embodiment, the evaporator 13, the air outlet fan 26 and the filter 27 are installed in the air outlet channel 23, and along the gas flow direction, the air outlet fan 26 is located downstream of the evaporator 13, and the filter 27 is located upstream of the evaporator 13. The air inlet 231 is fluidly connected with the outside of the kitchen or with the outside of the kitchen, and the air outlet 232 can be set at the top of the housing 20 or at the front of the housing 20. When the air outlet is set at the top of the housing 20, the air outlet is connected with the kitchen through an air duct (not shown in the figure), and when the air outlet is set at the front of the housing 20, the air conditioning air is directly blown from the air outlet to the kitchen.

[0051] In this embodiment, a water receiving pan 6 is installed in the air outlet channel 23. The water receiving pan 6 is located below the evaporator 13 and is used to receive the condensed water generated by the evaporator 13. The water receiving pan 6 is connected to the water tank 7 through the water guide pipe 61. The condensed water flows into the water tank 7 through the water guide pipe 61. A float switch 9 is installed in the water tank 7 to detect the water level. The condensed water in the water tank 7 is transported to the water inlet a of the tee 3 under the action of the water pump 8. The first water outlet b of the tee 3 is connected to the water inlet 41 of the water distributor 4. The second water outlet c of the tee 3 is connected to the water inlet of the atomizer 5. The condensed water flowing out of the water outlet 42 of the water distributor 4 can flow to the surface of the condenser 12. The atomizer 5 is arranged in the smoke exhaust channel 22, and the atomizer 5 is arranged downstream of the condenser 12 along the gas flow direction.

[0052] like Figures 5 to 7 As shown, the condenser 12 of this embodiment includes an upper collecting pipe 121 and a lower collecting pipe 122 arranged transversely, and flat tubes 123 arranged between the upper collecting pipe and the lower collecting pipe and arranged in sequence, an air inlet 124 is provided at one end of the lower collecting pipe 122, and a liquid outlet 125 is provided at the other end of the lower collecting pipe 122, and the upper collecting pipe 121 is connected to the lower collecting pipe 122 through the flat tubes 123. The water distributor 4 of this embodiment is arranged above the condenser 12, and the water distributor 4 is strip-shaped and arranged transversely along the upper edge of the condenser 12, and the water inlet 41 of the water distributor 4 is connected to the second water outlet c of the tee 3, and the water outlet 42 of the water distributor 4 has multiple water outlets 42 and is evenly distributed along the length direction of the water distributor 4, specifically, the number of water outlets 42 is equal to the number of flat tubes 123, and the water outlets 42 correspond to the flat tubes 123 one by one. In this embodiment, the diameter of each water outlet 42 is equal, that is, the water output of each water outlet 42 is the same, so that the amount of water flowing through each flat tube 123 is equal, and the flat tube 123 is evenly cooled.

[0053] like Figure 8 As shown, the control method of the kitchen air conditioning system is characterized by comprising the following steps:

[0054] ①、System start;

[0055] ②, determine whether the air conditioner is turned on,

[0056] If yes, proceed to step ③;

[0057] If not, return to step ②;

[0058] ③, the water inlet a of the tee 3 is connected with the first water outlet b;

[0059] ④, water pump 8 is turned on;

[0060] ⑤. Determine whether the float switch 9 is touched.

[0061] If yes, go to step ⑥;

[0062] If not, return to step ③;

[0063] ⑥, the water inlet a of the tee 3 is connected to the second water outlet c;

[0064] 7. Atomizer 5 works;

[0065] ⑧. Determine whether the air conditioning mode is turned off.

[0066] If yes, proceed to step ⑨;

[0067] If not, return to step ⑤;

[0068] ⑨. System shutdown.

[0069] After the kitchen air conditioning system adopts the above control method, it can intelligently control the condensed water treatment. When the amount of condensed water in the water tank 7 is small, the condensed water is sequentially transported to the water distributor 4 through the water pump 8 and the tee 3. The condensed water flowing out of the water distributor 4 flows through the surface of the condenser 12, which not only cools the condenser 12 and improves the heat exchange effect, but also makes the condensed water evaporate after heating. When the amount of condensed water in the water tank 7 is large, the condensed water is sequentially transported to the atomizer 5 through the water pump 8 and the tee 3. The atomizer 5 starts to work. The condensed water is atomized and discharged into the first smoke exhaust channel 221, and then discharged into the smoke exhaust pipe 10 with the oil smoke, thereby realizing the effective discharge of condensed water.

[0070] The working principle of the kitchen air conditioning system is as follows:

[0071] The range hood and the air conditioner are both turned on, and the oil smoke is discharged through the first smoke exhaust channel 221. In addition, the oil smoke airflow sweeping over the surface of the condenser 12 can cool and dissipate the heat of the condenser 12, thereby reducing the temperature of the refrigerant flowing through the condenser 12, thereby improving the heat exchange effect of the condenser 12, and further improving the energy efficiency of the air conditioner. Under the action of the air outlet fan 26, the cold air is sent into the kitchen room from the air outlet 232. At the same time, the condensed water generated by the evaporator 13 enters the water tank 7, and selectively flows to the condenser 12 or the atomizer 5 through the three-way 3, so as to realize the effective utilization and discharge of the condensed water.

[0072] Only the range hood is turned on, and the oil smoke is discharged through the second smoke exhaust channel 222 .

[0073] In addition, the oil fume extraction component of the present invention is not limited to the structure of installing the oil fume extraction fan inside the casing. The oil fume extraction component can also adopt a non-powered structure, that is, the oil fume extraction component only retains the smoke collecting shell, and the oil fume extraction fan is placed outside the casing. For example, the oil fume extraction fan can be installed on the top of the public flue of the building.

[0074] The "fluid communication" 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 and / or 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 condenser (12) and an evaporator (13), wherein the compressor (11), the condenser (12) and the evaporator (13) are connected via a refrigerant pipeline (14), and the oil fume suction component comprises a housing (20) and an exhaust passage (22) arranged inside the housing, wherein: An air outlet channel (23) is also provided inside the casing (20), and the air outlet of the air outlet channel (23) is fluidically connected to the kitchen room. The condenser (12) is arranged in the smoke exhaust channel (22), and the evaporator (13) is arranged in the air outlet channel (23). Condensed water generated by the evaporator (13) flows into the water inlet (a) of the tee (3). The first water outlet (b) of the tee (3) is connected to the water inlet (41) of the water distributor (4), and the second water outlet (c) of the tee (3) is connected to the water inlet (41) of the water distributor (4). The condensed water flowing out of the water outlet (42) of the water distributor (4) can flow to the surface of the condenser (12). The atomizer (5) The evaporator (5) is arranged in the smoke exhaust passage (22), and a water receiving pan (6) for receiving condensed water generated by the evaporator (13) is installed in the air outlet passage (23). The water receiving pan (6) is connected to the water tank (7), and the condensed water flowing from the water receiving pan (6) into the water tank (7) is transported to the water inlet (a) of the tee (3) through a water pump (8). The condenser (12) is arranged vertically or inclined relative to the vertical plane, and the water distributor (4) is arranged above the condenser (12). The water distributor (4) is strip-shaped and arranged horizontally along the upper edge of the condenser (12). The water inlet (41) of the water distributor (4) is connected to the second end of the tee (3). The water outlets (c) are connected, the water outlets (42) of the water distributor (4) are evenly spaced along the length direction of the water distributor (4), the condenser (12) comprises an upper liquid collecting pipe (121) and a lower liquid collecting pipe (122) arranged transversely, and flat tubes (123) arranged between the upper liquid collecting pipe and the lower liquid collecting pipe and arranged in sequence, the upper liquid collecting pipe (121) is connected to the lower liquid collecting pipe (122) through the flat tubes (123), the flat tubes are vertically distributed, the water outlets (42) correspond to the flat tubes (123) one by one, a range hood fan (21) is installed inside the casing (20), the smoke exhaust channel (22) and the air outlet channel (2 3) are arranged above the fume exhaust fan (21) and are distributed left and right with respect to each other. Along the flow direction of the fume, the smoke exhaust channel (22) is arranged downstream of the air outlet of the fume exhaust fan (21). The smoke exhaust channel (22) comprises a first smoke exhaust channel (221) and a second smoke exhaust channel (222). An air duct switching valve (24) for switching one of the first smoke exhaust channel (221) and the second smoke exhaust channel (222) to be connected to the air outlet of the fume exhaust fan (21) is installed at the entrance of the first smoke exhaust channel (221) and the second smoke exhaust channel (222). The condenser (12) is arranged in the first smoke exhaust channel (221).

2. The kitchen air conditioning system according to claim 1, characterized in that: A float switch (9) is installed in the water tank (7).

3. The kitchen air conditioning system according to claim 1, characterized in that: Along the gas flow direction, the atomizer (5) is arranged downstream of the condenser (12).

4. The kitchen air conditioning system according to claim 1, characterized in that: An electrostatic purification device (25) is also installed in the first smoke exhaust channel (221), and the electrostatic purification device (25) is arranged upstream of the condenser (12) along the flow direction of the oil smoke.

5. The kitchen air conditioning system according to claim 1, characterized in that: The first smoke exhaust channel (221) has a first smoke exhaust port (223), the second smoke exhaust channel (222) has a second smoke exhaust port (224), and the first smoke exhaust port (223) and the second smoke exhaust port (224) are independent of each other.

6. The kitchen air conditioning system according to claim 1, characterized in that: The housing (20) is provided with an air inlet (231) and an air outlet (232) of the air outlet channel (23); the air inlet (231) is fluidically connected to the outside of the kitchen or to the outside of the kitchen; and the air outlet (232) is arranged on the front of the housing (20) or on the top of the housing (20).

7. The kitchen air conditioning system according to any one of claims 1 to 6, characterized in that: An installation cavity (28) isolated from the smoke exhaust passage (22) and the air outlet passage (23) is provided in the casing (20), and the compressor (11) is integrated in the installation cavity (28).

8. The kitchen air conditioning system according to claim 1, characterized in that: A throttling device (15) is installed on the refrigerant pipeline (14) between the condenser (12) and the evaporator (13).

9. A method for controlling a kitchen air conditioning system as claimed in claim 3, characterized in that The steps include: ①、System start; ②, determine whether the air conditioner is turned on, If yes, proceed to step ③; If not, return to step ②; ③. The water inlet of the tee is connected to the first water outlet; ④. Turn on the water pump; ⑤. Determine whether the float switch is touched. If yes, go to step ⑥; If not, return to step ③; ⑥. The water inlet of the tee is connected to the second water outlet; 7. Atomizer working; ⑧. Determine whether the air conditioning mode is turned off. If yes, proceed to step ⑨; If not, return to step ⑤; ⑨. System shutdown.

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