Kitchen air conditioning system

Abstract

A kitchen air conditioning system, wherein the compressor, condenser and evaporator of the air conditioning component are connected through a refrigerant pipeline, the condenser is arranged in a smoke exhaust channel, an air outlet channel is also arranged in the housing, the evaporator is arranged in the air outlet channel, a condensate conveying device for conveying condensate generated by the evaporator to the condenser is also arranged in the housing, and a flow limiting mechanism for limiting the flow of condensate output by the condensate conveying device is also included. When the kitchen air conditioning system is working, the oil smoke takes away the heat of the condenser, and the condensate generated by the evaporator is conveyed to the condenser, which further cools the condenser on the one hand, and heats and evaporates the condensate and discharges it from the smoke exhaust channel on the other hand. In addition, the flow of the condensate conveyed by the condensate conveying device is limited by the flow limiting mechanism, so as to avoid excessive flow when starting up, resulting in excessive water spraying on the condenser in a short time, and to avoid large-area blockage of the condenser surface and condensate being blown out with the wind in the flue.

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.

[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 technical problem to be solved by the present invention is to provide a kitchen air conditioning system that can control the amount of condensed water flowing into the condenser and prevent the condensed water from clogging the condenser in response to the above-mentioned existing technical status.

[0006] 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 condenser and an evaporator, the compressor, condenser and evaporator are connected by a refrigerant pipeline, the oil fume suction component includes a casing and a smoke exhaust channel arranged in the casing, and is characterized in that: the condenser is arranged in the smoke exhaust channel, and an air outlet channel is also arranged in the casing, and the air outlet of the air outlet channel is fluidly connected with the kitchen room, the evaporator is arranged in the air outlet channel, and a condensate conveying device for conveying condensate generated by the evaporator to the condenser is also arranged in the casing, and also includes a flow limiting mechanism for limiting the flow of condensate output by the condensate conveying device.

[0007] The condensate conveying device can have a variety of structures. Preferably, the condensate conveying device includes a water receiving pan, a water tank, a water pump and a water distributor. The water receiving pan is used to receive the condensate generated by the evaporator. The condensate received by the water receiving pan flows into the water tank through a water pipe. The condensate flowing into the water tank is transported to the inside of the water distributor by the water pump. The condensate flowing out of the water distributor can flow along the surface of the condenser.

[0008] The flow limiting mechanism can have a variety of structures. Preferably, the flow limiting mechanism includes a flow limiting baffle arranged inside the water tank, the flow limiting baffle divides the inside of the water tank into at least two flow limiting areas, and the flow limiting baffle is provided with a through hole for connecting two adjacent flow limiting areas. The outermost flow limiting area is connected to the water conduit, and the innermost flow limiting area is connected to the water inlet of the water pump.

[0009] Further preferably, the flow limiting baffle is an arc-shaped plate, and the flow limiting baffle and the adjacent two side walls of the water tank together form the flow limiting area, and the outer flow limiting area surrounds the inner flow limiting area.

[0010] In order to facilitate the condensed water to fully flow through the surface of the condenser, the condenser is arranged vertically or inclined relative to the vertical plane.

[0011] In order to allow the condensed water flowing out of the water distributor to fully flow through the upper surface of the condenser, 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 distributor has a water inlet and a water outlet. The water inlet is connected to the water outlet of the water pump, and the water outlet 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 transversely 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, and the water outlets correspond to the flat tubes one by one.

[0013] In order to make the water outlet of the water distributor flow water more evenly, there are at least three water inlets and they are evenly distributed along the length direction of the water distributor.

[0014] In order to recycle the condensed water that has not evaporated after passing through the condenser, a return water box is provided at the bottom of the condenser, and the water in the return water box can flow back to the water tank through the return water pipe.

[0015] 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.

[0016] 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.

[0017] 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.

[0018] 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.

[0019] Preferably, the housing is provided with an air inlet and an air outlet of the air outlet passage, the air inlet is fluidly connected to the kitchen interior or to the kitchen exterior, and the air outlet is arranged on the front of the housing or on the top of the housing. In this way, the air outlet passage can realize both indoor air intake and outdoor fresh air entering the air outlet passage, and the position of the air outlet can also be flexibly selected according to needs.

[0020] In order to make the system structure more compact and the installation more convenient, the compressor is integrated on the casing.

[0021] Further preferably, a throttling device is installed on the refrigerant pipeline between the condenser and the evaporator.

[0022] 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, and the condensed water generated by the evaporator can be transported to the condenser through the condensed water conveying device. On the one hand, the condenser is further cooled, and the heat exchange effect of the condenser is further improved, thereby improving the air-conditioning energy efficiency. On the other hand, the condensed water can be evaporated after being heated by the condenser and then discharged from the smoke exhaust channel, eliminating the condensed water external discharge device. In addition, the condensed water transported by the condensed water conveying device is limited by a current limiting mechanism to avoid excessive water spraying on the condenser in a short time due to excessive flow when starting the machine, causing large-scale blockage of the condenser surface, thereby avoiding the resulting problem of reduced smoke exhaust effect and condensed water on the condenser surface being blown out by the flue airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the system structure of an embodiment of the present invention;

[0024] Figure 2 Schematic diagram of the structure of a range hood according to an embodiment of the present invention.

[0025] Figure 3 It is a structural schematic diagram of a condensed water conveying device according to an embodiment of the present invention;

[0026] Figure 4 is a structural schematic diagram of a condenser according to an embodiment of the present invention;

[0027] Figure 5 It is a structural schematic diagram of a water distributor according to an embodiment of the present invention;

[0028] Figure 6 It is a side view of a water distributor according to an embodiment of the present invention.

[0029] Figure 7 is a structural schematic diagram of a current limiting mechanism according to an embodiment of the present invention;

[0030] Figure 8 Schematic diagram of the structure inside the water tank according to an embodiment of the present invention. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below with reference to the accompanying drawings.

[0032] like Figure 1 and Figure 2As 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 component 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.

[0033] The oil fume extraction assembly of this embodiment has a housing 20, in which an oil fume extraction fan 21 is arranged. 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. Figure 1 The direction indicated by the middle arrow A is right, and the air outlet channel 23 is located on the right side of the smoke exhaust channel 22. In this embodiment, the compressor 11 is integrated on the housing 20, and the compressor 11 is on the right side of the range fumes fan 21 and is located below the air outlet channel 23.

[0034] 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 5 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. A condenser 12 and an electrostatic purification device 6 are installed in the first smoke exhaust channel 221, and the electrostatic purification device 6 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.

[0035] The first smoke exhaust channel 221 of this embodiment 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. The first smoke exhaust port 223 and the second smoke exhaust port 224 are connected to the same smoke exhaust pipe 7.

[0036] The housing 20 is provided with an air inlet (not shown in the figure) and an air outlet 24 of the air outlet passage 23. The air inlet can be connected to the kitchen room or to the outside. The air outlet 24 can be arranged on the front of the housing 20 or on the top of the housing 20. When the air outlet is arranged on the front of the housing 20, the air conditioning air is blown directly from the air outlet to the kitchen room. When the air outlet is arranged on the top of the housing 20, the air outlet is connected to the kitchen room through an air duct (not shown in the figure).

[0037] The evaporator 13 and an air outlet fan (not shown in the figure) are installed in the air outlet channel 23. The air outlet fan blows air toward the air outlet 24, and blows the refrigerated air from the air outlet 24 into the kitchen room.

[0038] When the system is working, the evaporator 13 will produce condensed water. In this embodiment, the condensed water is transported to the condenser 12 through the condensed water transport device 3, and the condensed water can flow along the surface of the condenser 12.

[0039] like Figures 3 to 6 As shown, the condensate conveying device 3 of this embodiment includes a water receiving tray 31, a water tank 32, a water pump 33 and a water distributor 34, wherein the water receiving tray 31 is arranged in the air outlet channel 23 and below the evaporator 13, and the condensate received by the water receiving tray 31 flows into the water tank 32 through the water guide pipe 35, and the condensate flowing into the water tank 32 is conveyed to the inside of the water distributor 34 through the water pump 33. The condenser 12 of this embodiment is inclined relative to the vertical plane, and the water distributor 34 is arranged above the condenser 12. The water distributor 34 is strip-shaped and arranged horizontally on the upper edge of the condenser 12. The water distributor 34 has a water inlet 341 and a water outlet 342. The water inlet 341 is connected to the water outlet of the water pump 33, and the water outlet 342 is evenly spaced along the length direction of the water distributor 34, so that the condensate flowing out of the water distributor 34 can flow evenly downward along the upper surface of the condenser 12.

[0040] The condenser 12 of this embodiment includes 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, an air inlet 124 is provided at one end of the lower liquid collecting pipe 122, and a liquid outlet 125 is provided at the other end of the lower liquid collecting pipe 122, and the upper liquid collecting pipe 121 is connected to the lower liquid collecting pipe 122 through the flat tubes 123. The water distributor 34 of this embodiment has four water inlets 341 and is evenly spaced along the length direction of the water distributor 34, and has multiple water outlets 342 and is evenly spaced along the length direction of the water distributor 34. Specifically, the number of water outlets 342 is equal to the number of flat tubes 123, and the water outlets 342 correspond to the flat tubes 123 one by one. In this embodiment, the diameter of each water outlet 342 is equal, that is, the water output of each water outlet 342 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.

[0041] The kitchen air conditioning system also includes a flow limiting mechanism for limiting the flow of condensed water output by the condensed water delivery device 3. Figure 7 and Figure 8As shown, the flow limiting mechanism of this embodiment includes three flow limiting baffles 41 arranged at intervals inside the water tank 32. The flow limiting baffles 41 divide the inside of the water tank 32 into four flow limiting areas 42. The flow limiting baffles 41 are provided with through holes 43 for connecting two adjacent flow limiting areas 42. In addition, the outermost flow limiting area 42 is connected to the water guide pipe 35, that is, the condensed water generated by the evaporator first flows into the outermost flow limiting area, and the innermost flow limiting area 42 is connected to the water inlet of the water pump 33, that is, the condensed water in the outer flow limiting area eventually flows into the innermost flow limiting area and is transported to the water distributor 34 through the water pump 33. The flow limiting baffle 41 of this embodiment is an arc-shaped plate, and the flow limiting baffle 41 and the adjacent two side walls of the water tank together form the flow limiting area 42, and the outer flow limiting area 42 surrounds the inner flow limiting area 42.

[0042] After the system is shut down after running in the refrigeration mode for a period of time, the evaporator 13 will continue to produce a certain amount of condensed water and flow into the water tank 32. When the system is turned on next time, the water pump 33 will spray this part of condensed water onto the condenser in a short time, which will cause a large area of ​​water curtain to form on the surface of the condenser, which will have an adverse effect on smoke exhaust, and the flue gas flow will also cause the condensed water on the surface of the condenser to fly out. After the water tank 32 of the present invention adopts a flow-limiting baffle 41, the water pump 33 will first drain the water in the innermost flow-limiting area 42 after working, and the water in the flow-limiting area adjacent to the innermost flow-limiting area will flow into the innermost flow-limiting area 42 through the through hole 43, so that the water pump will not drain the water in the water tank 32 all at once.

[0043] In addition, a return water box 36 is provided at the bottom of the condenser 12, and the water in the return water box 36 can flow back to the water tank 32 through the return water pipe 37. In this way, the condensed water that is not evaporated by the condenser 12 can flow into the return water box 36 and then flow back to the water tank 32, so that the condensed water can be recycled.

[0044] The kitchen air conditioning system works in cooling mode, and its working principle is as follows:

[0045] 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, reduce the temperature of the refrigerant flowing through the condenser 12, and thus improve the heat exchange effect of the condenser 12. In addition, the condensed water of the evaporator 13 is transported to the condenser 12 by the condensed water transport device 3, and flows downward along the upper surface of the condenser 12. On the one hand, the condenser 12 is further cooled, and the heat exchange effect of the condenser is further improved, thereby improving the energy efficiency of the air conditioner and realizing the effective use of the condensed water. On the other hand, the condensed water can be heated by the condenser 12 and evaporated and then discharged from the first smoke exhaust channel 221. At the same time, the cold air is sent into the kitchen room from the air outlet 24 of the air outlet channel 23.

[0046] 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.

[0047] 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 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 casing (20) and an exhaust passage (22) arranged in the casing, wherein: The condenser (12) is arranged in the smoke exhaust passage (22), and an air outlet passage (23) is also arranged in the housing (20), and an air outlet (24) of the air outlet passage (23) is fluidly connected to the kitchen room. The evaporator (13) is arranged in the air outlet passage (23), and a condensate conveying device (3) is also arranged in the housing (20) for conveying condensate generated by the evaporator (13) to the condenser (12), and a condensate conveying device (3) is also provided for conveying condensate generated by the evaporator (13) to the condenser (12). The condensed water conveying device (3) comprises a water receiving pan (31), a water tank (32), a water pump (33) and a water distributor (34). The water receiving pan (31) is used to receive the condensed water generated by the evaporator (13). The condensed water received by the water receiving pan (31) flows into the water tank through a water guide pipe (35). The condensed water flowing into the water tank (32) is conveyed to the inside of the water distributor (34) through the water pump (33). The water distributor (34) flows The condensed water can flow along the surface of the condenser (12), the flow limiting mechanism comprises a flow limiting baffle (41) arranged inside the water tank (32), the flow limiting baffle (41) divides the inside of the water tank (32) into at least two flow limiting areas (42), the flow limiting baffle (41) is provided with a through hole (43) for connecting two adjacent flow limiting areas (42), the outermost flow limiting area (42) is connected to the water guide pipe (35), and the innermost flow limiting area (42) is connected to the water pump (35). 3), the condenser (12) is arranged vertically or inclined relative to the vertical plane, the water distributor (34) is arranged above the condenser (12), the water distributor (34) is strip-shaped and is arranged horizontally along the upper edge of the condenser (12), the water distributor (34) has a water inlet (341) and a water outlet (342), the water inlet (341) is connected to the water outlet of the water pump, and the water outlet (342) is evenly spaced along the length direction of the water distributor (34).

2. The kitchen air conditioning system according to claim 1, characterized in that: The flow limiting baffle (41) is an arc-shaped plate. The flow limiting baffle (41) and the adjacent two side walls of the water tank together form the flow limiting area (42), and the outer flow limiting area (42) surrounds the inner flow limiting area (42).

3. The kitchen air conditioning system according to claim 1, characterized in that: The condenser (12) comprises an upper liquid collecting pipe (121) and a lower liquid collecting pipe (122) which are arranged transversely, and flat tubes (123) which are arranged in sequence and are arranged between the upper liquid collecting pipe and the lower liquid collecting pipe; the upper liquid collecting pipe (121) is connected to the lower liquid collecting pipe (122) via the flat tubes (123); and the water outlets (342) correspond one to one to the flat tubes (123).

4. The kitchen air conditioning system according to claim 1, characterized in that: There are at least three water inlets (341) which are evenly spaced and distributed along the length direction of the water distributor (34).

5. The kitchen air conditioning system according to claim 1, characterized in that: A water return box (36) is provided at the bottom of the condenser (12), and water in the water return box (36) can flow back into the water tank (32) through a water return pipe (37).

6. The kitchen air conditioning system according to claim 1, characterized in that: A fume extractor fan (21) is installed inside the housing (20); the fume exhaust passage (22) and the air outlet passage (23) are arranged above the fume extractor fan (21) and are distributed left and right with respect to each other; along the flow direction of the fume, the fume exhaust passage (22) is arranged downstream of the air outlet of the fume extractor fan (21).

7. The kitchen air conditioning system according to claim 6, characterized in that: The smoke exhaust channel (22) comprises a first smoke exhaust channel (221) and a second smoke exhaust channel (222); an air duct switching valve (5) for switching one of the first smoke exhaust channel (221) and the second smoke exhaust channel (222) to be connected to an air outlet of the range fumes exhaust fan (21) is installed at the entrance of the first smoke exhaust channel (221) and the second smoke exhaust channel (222); and the condenser (12) is arranged in the first smoke exhaust channel (221).

8. The kitchen air conditioning system according to claim 7, characterized in that: An electrostatic purification device (6) is also installed in the first smoke exhaust channel (221), and along the flow direction of the oil smoke, the electrostatic purification device (6) is arranged upstream of the condenser (12).

9. The kitchen air conditioning system according to claim 7, 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.

10. The kitchen air conditioning system according to claim 1, characterized in that: The housing (20) is provided with an air inlet and an air outlet (24) of the air outlet passage (23); the air inlet is in fluid communication with the outside of the kitchen or with the outside of the kitchen; and the air outlet (24) is arranged on the front of the housing (20) or on the top of the housing (20).

11. The kitchen air conditioning system according to any one of claims 1 to 10, characterized in that: The compressor (11) is integrated on the casing (20).

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

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