Air conditioner range hood

Abstract

An air-conditioning type range hood, a range hood fan, a compressor, a first heat exchanger and a second heat exchanger are installed in a casing, the first heat exchanger is installed in a smoke exhaust passage, the second heat exchanger is installed in an air outlet passage, condensed water condensed on the first heat exchanger or the second heat exchanger flows into a water box, the condensed water collected in the water box is sprayed to the compressor through a sprayer, a gas-liquid separator is used for gas-liquid separation of the condensed water sprayed to the surface of the compressor, the separated water vapor enters the smoke exhaust passage, and the separated water flows back to the water box. When the air-conditioning type range hood works in an air-conditioning mode, on the one hand, the heat generation characteristics of the compressor operation are used to evaporate and treat the condensed water, solve the problem of direct discharge of the condensed water, reduce the energy consumption of the compressor, improve the overall performance of the air conditioner, on the other hand, the water vapor is discharged by using the air suction effect of the range hood, and the water vapor flows in the whole range hood cavity and air duct, so that the range hood can be self-cleaned.

Description

Technical Field

[0001] This invention relates to a range hood, and more particularly to an air-conditioning type range hood. Background Technology

[0002] The kitchen is the primary place for cooking, and the quality of its air quality directly impacts the cooking experience. Kitchens are hot in summer and cold in winter, requiring both heating and cooling. To provide cool air in summer and warm air in winter, various air-conditioning range hoods were invented, integrating air conditioning components with the range hood itself, with air conditioning vents on the hood's casing. These air-conditioning range hoods can operate in multiple modes; when the air conditioning mode is activated, the vents will blow cool or warm air, either directly towards the cook or into the rest of the kitchen, effectively improving the cooking experience. Because the compressor cylinder of the air conditioning component operates at very high temperatures, timely cooling is essential to prevent the compressor from shutting down due to overheating. In addition, when the air conditioner is turned on, condensation will form on the surface of the evaporator. If the condensation is drained from the air conditioner, an external water pipe is required, which not only increases the installation cost, but also causes long-term erosion of the wall and dripping into the external environment. If the condensation accumulates inside the range hood, it can easily cause localized leaks and even affect the normal operation of the range hood. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an air-conditioning type range hood that can utilize air conditioner condensate to reduce compressor energy consumption and improve air conditioner performance, in light of the above-mentioned existing technology.

[0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: The air-conditioning type range hood includes a casing, in which a range hood fan, a compressor, a first heat exchanger, and a second heat exchanger are installed. The compressor, the first heat exchanger, and the second heat exchanger are connected through a refrigerant pipeline. The casing has a smoke exhaust channel and an air outlet channel that are isolated from each other. The first heat exchanger is installed in the smoke exhaust channel, and the second heat exchanger is installed in the air outlet channel. The feature is that a water box, a sprayer, and a gas-liquid separator are installed in the casing. The condensate condensed on the first or second heat exchanger flows into the water box. The condensate collected in the water box can be sprayed onto the compressor through the sprayer. The gas-liquid separator is used to separate the condensate sprayed onto the surface of the compressor. The separated water vapor enters the smoke exhaust channel, and the separated water flows back into the water box.

[0005] In order to smoothly spray condensate onto the compressor, a water pump is also included. The condensate in the water box is pumped to the sprayer by the water pump. The outlet of the sprayer is set downward and above the compressor.

[0006] To achieve a better spraying effect, the sprayer includes a housing with a water inlet pipe installed on the top of the housing. The water inlet pipe is connected to the water outlet of the water box. The housing is equipped with at least two layers of liquid distribution plates spaced vertically. Liquid distribution holes are opened on the liquid distribution plates, and the diameter of the liquid distribution holes of the upper-level liquid distribution plate is larger than the diameter of the liquid distribution holes of the lower-level liquid distribution plate. The liquid distribution holes of the lowest-level liquid distribution plate form the water outlet of the sprayer.

[0007] Further preferably, the liquid distribution plate includes a first-level liquid distribution plate, a second-level liquid distribution plate, and a third-level liquid distribution plate that are distributed at intervals from top to bottom. The first-level liquid distribution plate has first-level liquid distribution holes evenly distributed in the central area. The second-level liquid distribution plate has second-level liquid distribution holes evenly distributed. The third-level liquid distribution plate has third-level liquid distribution holes, and the third-level liquid distribution holes are biased towards one side of the third-level liquid distribution plate.

[0008] The gas-liquid separator can have various structures. Preferably, the gas-liquid separator includes a shell with a through hole for the compressor to pass through longitudinally. A liquid collection tank is formed on the outer periphery of the through hole, and a liquid storage chamber is provided at the bottom of the shell, communicating with the liquid collection tank. The liquid storage chamber is connected to the return port of the water box via a return water pipe. In this way, the condensate that has not evaporated on the surface of the compressor can flow along the outer wall of the compressor into the liquid collection tank, and then into the liquid storage chamber, and finally return to the water box for reuse.

[0009] To achieve gas-liquid separation, a gas collecting chamber is provided inside the outer shell, located above the liquid storage chamber. The inlet of the gas collecting chamber faces the side wall of the compressor. The gas collecting chamber and the liquid storage chamber are separated by an inclined return plate. The inclined return plate is inclined from bottom to top along the flow direction of the gas-liquid mixture. A return port is opened on the lower side of the inclined return plate. The vertical projection of the return port falls into the liquid storage chamber. A gas conveying channel is formed downstream of the gas collecting chamber. The outlet of the gas conveying channel is connected to the inside of the volute of the range hood.

[0010] In order to ensure that the condensate evaporated by the compressor can be fully drawn into the air collection chamber, the condensate is sprayed by a sprayer onto the top of the compressor and the area adjacent to the air collection chamber.

[0011] In order to facilitate the removal of water vapor from the gas collection chamber, an air intake channel is provided at the outlet of the gas delivery channel. An air intake port is opened on the side wall of the volute, and the air intake channel is connected to the air intake port.

[0012] In order to ensure that the condensate in the storage chamber can flow back to the water box, the bottom of the storage chamber has an inclined pouring plate, and the return water pipe is installed at the lowest point of the inclined pouring plate.

[0013] Further preferably, the downstream exhaust duct of the range hood includes a first exhaust duct and a second exhaust duct. A damper is installed at the outlet of the range hood to switch between the first and second exhaust ducts and the range hood outlet. The first heat exchanger is located within the first exhaust duct. Thus, in different operating modes, by switching the damper, the fumes can be discharged from different exhaust ducts.

[0014] To prevent oil fume from contaminating the heat exchanger, an oil fume purification device is installed in the first exhaust duct, located upstream of the first heat exchanger along the direction of oil fume flow.

[0015] The first smoke exhaust channel and the second smoke exhaust channel can have multiple smoke exhaust methods. Preferably, the first smoke exhaust channel has a first smoke exhaust port, and the second smoke exhaust channel has a second smoke exhaust port. The first smoke exhaust port and the second smoke exhaust port are independent of each other.

[0016] In order for the air-conditioning type range hood to work in cooling mode, the first heat exchanger is a condenser, the second heat exchanger is an evaporator, and a throttling device is installed on the refrigerant pipeline between the first heat exchanger and the second heat exchanger.

[0017] In order to ensure that the air outlet can discharge air smoothly, an air outlet fan is installed in the air outlet, and the air outlet of the air outlet is provided on the casing.

[0018] Compared with the prior art, the advantages of this invention are as follows: This air-conditioning range hood can collect condensate on the surface of the heat exchanger into a water box inside the casing. The condensate collected in the water box can be sprayed onto the compressor through a sprayer. A gas-liquid separator is used to separate the condensate sprayed onto the compressor surface. The separated water vapor enters the exhaust channel, and the separated water flows back into the water box. In this way, on the one hand, the condensate is evaporated by the heat generated during compressor operation, solving the problem of direct discharge of condensate. Moreover, due to the high temperature environment on the compressor surface, the liquid condensate evaporates quickly, which can reduce the exhaust temperature and exhaust pressure of the compressor itself, further reducing compressor energy consumption and improving the overall performance of the air conditioner. On the other hand, the suction effect of the range hood is used to exhaust water vapor. At the same time, the water vapor flows throughout the range hood cavity and air duct, which can self-clean and protect the range hood, improving the service life of the air-conditioning range hood. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an air-conditioning type range hood according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the air conditioning component according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the sprayer according to an embodiment of the present invention;

[0022] Figure 4 for Figure 3 A cross-sectional view of the sprayer shown;

[0023] Figure 5 for Figure 3 A cross-sectional view of the sprayer shown;

[0024] Figure 6 for Figure 3 A cross-sectional view of the sprayer shown;

[0025] Figure 7 for Figure 3 A cross-sectional view of the sprayer shown;

[0026] Figure 8 This is a schematic diagram of the gas-liquid separator according to an embodiment of the present invention;

[0027] Figure 9 for Figure 8 The top view of the gas-liquid separator shown;

[0028] Figure 10 for Figure 11 The diagram shows a cross-sectional view of the gas-liquid separator along line BB.

[0029] Figure 11 for Figure 12 The gas-liquid separator shown is a cross-sectional view along line AA.

[0030] Figure 12 for Figure 11 The diagram shows a cross-sectional view of the gas-liquid separator along the CC direction.

[0031] Figure 13 This is a schematic diagram of the cooperative structure of the sprayer, compressor, and gas-liquid separator according to an embodiment of the present invention; Detailed Implementation

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0033] like Figure 1 and Figure 2As shown, the air-conditioning type range hood of this embodiment includes a housing 1, inside which a range hood fan 2 is installed. The housing 1 has a smoke exhaust duct 11 and an air outlet duct 12 that are isolated from each other. An air outlet fan 13 is installed in the air outlet duct 12, and an air outlet 14 for the air outlet duct 12 is provided on the housing 1. The downstream smoke exhaust duct 11 of the range hood fan 2 includes a first smoke exhaust duct 111 and a second smoke exhaust duct 112. The first smoke exhaust duct 111 has a first smoke outlet 113, and the second smoke exhaust duct 112 has a second smoke outlet 114. The first smoke outlet 113 and the second smoke outlet 114 are independent of each other. A damper 8 is installed at the outlet of the range hood fan 2 to switch the connection between one of the first smoke exhaust duct 111 and the second smoke exhaust duct 112 and the outlet of the range hood fan 2. Figure 1 As shown, with Figure 1 The direction indicated by the middle arrow D is to the right, and the air valve 8 is in a leftward deflection state. At this time, the first smoke exhaust channel 111 is opened and the second smoke exhaust channel 112 is closed, and the oil fumes are discharged outward through the first smoke exhaust channel 111.

[0034] The casing 1 also houses a compressor 30, a first heat exchanger 31, and a second heat exchanger 32, which are connected via a refrigerant pipeline 33. In this embodiment, the first heat exchanger 31 is a condenser, and the second heat exchanger 32 is an evaporator. A throttling device 34 is installed on the refrigerant pipeline 33 between the first heat exchanger 31 and the second heat exchanger 32. The first heat exchanger 31 is installed in the first exhaust duct 111. To prevent oil fume from contaminating the first heat exchanger 31, an oil fume purification device 9 is also installed in the first exhaust duct 111, positioned upstream of the first heat exchanger 31 along the direction of oil fume flow.

[0035] Inside the casing 1, a water box 4, a sprayer 5, a gas-liquid separator 6, and a water pump 7 are also installed. In this embodiment, the water box 4 is located below the second heat exchanger 32, i.e., the evaporator. The condensate water condensed on the surface of the evaporator can flow into the water box 4. Under the action of the water pump 7, the water in the water box 4 is transported to the sprayer 5.

[0036] like Figures 3 to 7As shown, the sprayer 5 in this embodiment includes a housing 51. A water inlet pipe 52 is installed on the top of the housing 51, and the water inlet pipe 52 is connected to the water outlet of the water box 4. The housing 51 includes a first-stage liquid distribution plate 53, a second-stage liquid distribution plate 54, and a third-stage liquid distribution plate 55 arranged sequentially from top to bottom. The central area of ​​the first-stage liquid distribution plate 53 has first-stage liquid distribution holes 531 evenly distributed. The second-stage liquid distribution plate 54 has second-stage liquid distribution holes 541 evenly distributed. The third-stage liquid distribution plate 55 has third-stage liquid distribution holes 551, which are offset to one side of the third-stage liquid distribution plate 55. Furthermore, the diameter of the first-stage liquid distribution hole 531 is larger than that of the second-stage liquid distribution hole 541, and the diameter of the second-stage liquid distribution hole 541 is larger than that of the third-stage liquid distribution hole 551. The third-stage liquid distribution hole 551 constitutes the water outlet of the sprayer 5, which is oriented and positioned above the compressor 30.

[0037] like Figures 8 to 12 As shown, the gas-liquid separator 6 in this embodiment includes a housing 61, on which a through hole 62 is opened for the compressor 30 to pass longitudinally. A liquid collection tank 63 is formed on the outer periphery of the through hole 62. A liquid storage chamber 64 communicating with the liquid collection tank 63 is provided at the bottom of the housing 61. The bottom of the liquid storage chamber 64 has an inclined liquid pouring plate 66. A return water pipe 65 is installed at the lowest point of the inclined liquid pouring plate 66. The liquid storage chamber 64 is connected to the return water port of the water box 4 through the return water pipe 65.

[0038] An air collecting chamber 69 is provided inside the outer casing 61, located above the liquid storage chamber 64, with its inlet facing the side wall of the compressor 30. The air collecting chamber 69 and the liquid storage chamber 64 are separated by an inclined return plate 67, which is inclined upwards along the flow direction of the gas-water mixture. A return port 68 is opened on the lower side of the inclined return plate 67, and its vertical projection falls into the liquid storage chamber 64. A gas conveying channel 610 is formed downstream of the air collecting chamber 69, and an exhaust channel 611 is provided at the outlet of the gas conveying channel 610. An exhaust port 22 is opened on the side wall of the volute 21, and the exhaust channel 611 is connected to the exhaust port 22. Thus, the air collecting chamber 69, the gas conveying channel 610, the exhaust channel 611, and the internal channels of the volute 21 are interconnected.

[0039] like Figure 13 As shown, a sprayer 5 outlet is provided above the side of the compressor 30 adjacent to the air collection chamber. Condensate is sprayed by the sprayer 5 onto the top of the compressor 30 and the area adjacent to the air collection chamber 69.

[0040] When the range hood operates in air conditioning mode, condensate forms on the surface of the second heat exchanger 32, i.e., the evaporator. This condensate flows into the water box 4 and is then pumped to the sprayer 5 by the water pump 5. The sprayer 5 sprays the condensate onto the top of the compressor 30, where it flows downwards along the surface. The gas-liquid separator 6 separates the condensate sprayed onto the compressor 30. The separated water vapor sequentially enters the volute 21 through the gas collection chamber 69, the gas delivery channel 610, and the induced draft channel 611. The water vapor self-cleans the inside of the volute 21 and, driven by the oil fume airflow, is discharged outwards through the exhaust channel 11. The diverted water flows into the liquid storage chamber 64 and returns to the water box 4 through the return water pipe 65 for reuse. As can be seen from the above working process, on the one hand, the condensate is evaporated by the heat generated during the operation of the compressor, solving the problem of direct discharge of condensate. Moreover, due to the high temperature environment on the surface of the compressor, the liquid condensate evaporates very quickly, which can reduce the exhaust temperature and exhaust pressure of the compressor itself, further reducing compressor energy consumption and improving the overall performance of the air conditioner. On the other hand, the suction effect of the range hood is used to exhaust water vapor. At the same time, the water vapor flows in the entire range hood cavity and air duct, which can self-clean and protect the range hood, and improve the service life of the air-conditioning range hood.

Claims

1. An air-conditioning type range hood, comprising a housing (1), wherein a range hood fan (2), a compressor (30), a first heat exchanger (31), and a second heat exchanger (32) are installed inside the housing (1), the compressor (30), the first heat exchanger (31), and the second heat exchanger (32) are connected by a refrigerant pipeline (33), and the housing (1) is provided with mutually isolated exhaust duct (11) and air outlet duct (12), wherein the first heat exchanger (31) is installed in the exhaust duct (11), and the second heat exchanger (32) is installed in the air outlet duct (12), characterized in that: A water box (4), a sprayer (5), and a gas-liquid separator (6) are installed inside the casing (1). The condensate that condenses on the first heat exchanger (31) or the second heat exchanger (32) flows into the water box (4). The condensate collected in the water box (4) can be sprayed onto the compressor (30) through the sprayer (5). The gas-liquid separator (6) is used to separate the condensate sprayed onto the surface of the compressor (30). The separated water and gas enter the exhaust channel (11), and the separated water flows back into the water box (4). An exhaust fan (13) is installed in the exhaust channel (12), and an exhaust port (14) of the exhaust channel (12) is provided on the casing (1).

2. The air-conditioning type range hood according to claim 1, characterized in that: It also includes a water pump (7), through which the condensate in the water box (4) is pumped to the sprayer (5), with the outlet of the sprayer (5) facing downward and located above the compressor (30).

3. The air-conditioning type range hood according to claim 2, characterized in that: The sprayer (5) includes a housing (51), and an inlet pipe (52) is installed on the top of the housing (51). The inlet pipe (52) is connected to the outlet of the water box (4). The housing (51) is provided with at least two levels of liquid distribution plates that are spaced vertically. Liquid distribution holes are opened on the liquid distribution plates, and the diameter of the liquid distribution holes of the upper level liquid distribution plate is larger than the diameter of the liquid distribution holes of the lower level liquid distribution plate. The liquid distribution holes of the lowest level liquid distribution plate form the outlet of the sprayer (5).

4. The air-conditioning type range hood according to claim 3, characterized in that: The liquid distribution plate includes a first-level liquid distribution plate (53), a second-level liquid distribution plate (54), and a third-level liquid distribution plate (55) arranged sequentially from top to bottom. The first-level liquid distribution plate (53) has first-level liquid distribution holes (531) evenly distributed in the central area. The second-level liquid distribution plate (54) has second-level liquid distribution holes (541) evenly distributed. The third-level liquid distribution plate (55) has third-level liquid distribution holes (551) and the third-level liquid distribution holes (551) are biased towards one side of the third-level liquid distribution plate (55).

5. The air-conditioning type range hood according to any one of claims 1 to 4, characterized in that: The gas-liquid separator (6) includes a housing (61), on which a through hole (62) is opened for the compressor (30) to pass through longitudinally. A liquid collection tank (63) is formed on the outer periphery of the through hole (62). A liquid storage chamber (64) communicating with the liquid collection tank (63) is provided at the bottom of the housing (61). The liquid storage chamber (64) is connected to the return water port of the water box (4) through a return water pipe (65).

6. The air-conditioning type range hood according to claim 5, characterized in that: The outer casing (61) is provided with a gas collecting chamber (69), which is located above the liquid storage chamber (64). The inlet of the gas collecting chamber (69) faces the side wall of the compressor (30). The gas collecting chamber (69) and the liquid storage chamber (64) are separated by an inclined return plate (67). The inclined return plate (67) is inclined from bottom to top along the flow direction of the gas-water mixture. A return port (68) is opened on the lower side of the inclined return plate (67). The vertical projection of the return port (68) falls into the liquid storage chamber (64). A gas conveying channel (610) is formed downstream of the gas collecting chamber (69). The outlet of the gas conveying channel (610) is connected to the inside of the volute (21) of the fume extractor (2).

7. The air-conditioning type range hood according to claim 6, characterized in that: Condensate is sprayed by the sprayer (5) onto the top of the compressor (30) and the area adjacent to the gas collection chamber (69).

8. The air-conditioning type range hood according to claim 6, characterized in that: The outlet of the gas delivery channel (610) is also provided with an air intake channel (611), and an air intake port (22) is opened on the side wall of the volute (21). The air intake channel (611) is connected to the air intake port (22).

9. The air-conditioning type range hood according to claim 5, characterized in that: The bottom of the liquid storage chamber (64) has an inclined pouring plate (66), and the return water pipe (65) is installed at the lowest point of the inclined pouring plate (66).

10. The air-conditioning type range hood according to claim 1, characterized in that: The downstream exhaust duct (11) of the exhaust fan (2) includes a first exhaust duct (111) and a second exhaust duct (112). A damper (8) is installed at the outlet of the exhaust fan (2) to switch one of the first exhaust duct (111) and the second exhaust duct (112) to the outlet of the exhaust fan (2). The first heat exchanger (31) is located in the first exhaust duct (111).

11. The air-conditioning type range hood according to claim 10, characterized in that: An oil fume purification device (9) is installed in the first exhaust duct (111) and is located upstream of the first heat exchanger (31) along the direction of oil fume flow.

12. The air-conditioning type range hood according to claim 10, characterized in that: The first smoke exhaust channel (111) has a first smoke exhaust port (113), and the second smoke exhaust channel (112) has a second smoke exhaust port (114). The first smoke exhaust port (113) and the second smoke exhaust port (114) are independent of each other.

13. The air-conditioning type range hood according to claim 1, characterized in that: The first heat exchanger (31) is a condenser, the second heat exchanger (32) is an evaporator, and a throttling device (34) is installed on the refrigerant pipeline (33) between the first heat exchanger (31) and the second heat exchanger (32).

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