Condensate water treatment device, refrigeration device and electric appliance

Abstract

The application discloses a condensate water treatment device, a refrigerating device and an electric appliance. The condensate water treatment device comprises a shell. Opposite air inlets and air outlets are formed on the shell. The condensate water treatment device further comprises a fan for sucking air from the air inlets into the shell and discharging the air from the air outlets, and a water absorption curtain located between the air inlets and the fan on an air flow path. The shell further comprises a water receiving box assembly, which comprises a first water receiving box located at the top of the water absorption curtain, condensate water in the first water receiving box dropping downwards onto the water absorption curtain, and a second water receiving box, the bottom of the water absorption curtain extending to the second water receiving box, and condensate water in the second water receiving box being sucked upwards by the water absorption curtain.

Description

Technical Field

[0001] This invention relates to refrigeration technology, and in particular to a condensate treatment device, a refrigeration device using the condensate treatment device, and an electrical appliance using the refrigeration device. Background Technology

[0002] Existing solutions for handling air conditioner condensate water generally fall into two categories: external drainage and water collection boxes. External drainage can be further subdivided into:

[0003] ① Drain pump: This type of drain pump requires a pipe connection. If it is drained into the kitchen drain pipe, the pipe needs to be sealed. If it is drained into the sink, it will affect the routing of the pipes on the countertop.

[0004] ② Pump + atomizing nozzle (ultrasonic atomization), such as the cooling range hood disclosed in Chinese invention patent application number 202320263768.2, includes an upper housing and a lower cavity. An air conditioning unit module is located outside the upper housing, and this module has an evaporator. Condensate condensing on the evaporator drips onto or is transported to the condenser. Condensate not consumed by the condenser flows into the atomizing device, is atomized, and then enters the exhaust chamber through a mesh. This method still produces fine water particles after atomization, which condense on the inner wall of the flue (when used in a range hood). It also requires a very high pump operating pressure, has a high failure rate for the ultrasonic atomizing plate, and the overall device is relatively expensive.

[0005] ③ Water impeller + condenser, pump + distributor + finned condenser, etc., such as the chassis assembly and integrated air conditioner disclosed in Chinese Patent Application No. 202323578503.0, and the range hood disclosed in Chinese Patent Application No. 202310872871.1. This method uses the heat of the condenser to vaporize the condensate, which increases the requirements for the finned condenser, requiring the addition of a hydrophobic coating. The cost of the entire device is also relatively high. Furthermore, the hot steam condenses upon encountering the cold air in the flue pipe (when used in the range hood), resulting in very little condensate being discharged outdoors, which then flows back into the oil cup.

[0006] Water collection box solutions can be further subdivided into:

[0007] ① Water collection box + manual emptying alarm: This method requires frequent manual emptying of water, which is inconvenient to use;

[0008] ② Water collection box + heated water vaporization and discharge, such as the air curtain cabinet disclosed in Chinese patent application number 202122011564.3 that can perform secondary cooling of the condenser. In this method, the condensate itself is heated and vaporized at a low temperature, which is somewhat wasteful of energy, and the vaporization and discharge effect is not ideal as mentioned above.

[0009] Therefore, further improvements are needed. Summary of the Invention

[0010] The first technical problem to be solved by the present invention is to address the shortcomings of the prior art by providing a condensate treatment device that increases the contact area between water and air, accelerates the air flow rate at the contact surface, and accelerates the evaporation of condensate with lower energy consumption.

[0011] The second technical problem to be solved by the present invention is to provide a refrigeration device that uses the above-mentioned condensate treatment device.

[0012] The third technical problem to be solved by the present invention is to provide an electrical appliance that uses the above-mentioned refrigeration device.

[0013] The technical solution adopted by the present invention to solve the first technical problem mentioned above is: a condensate treatment device, comprising a shell; characterized in that:

[0014] The housing has an air inlet and an air outlet that are arranged opposite to each other.

[0015] The condensate treatment device further includes:

[0016] A fan is used to draw air into the housing from the air inlet and exhaust it from the air outlet; and

[0017] The water-absorbing curtain is located between the air inlet and the fan in the airflow path;

[0018] The housing also includes a water receiving box assembly, the water receiving box assembly comprising:

[0019] The first water collection box is located at the top of the water absorption curtain, and the condensate in the first water collection box drips downwards onto the water absorption curtain; and

[0020] The second water collection box is formed by the bottom of the water absorption curtain extending to it, and the condensate in the second water collection box is drawn upwards by the water absorption curtain.

[0021] By setting up upper and lower water collection boxes and a water suction curtain, when water accumulates in the lower second water collection box, the water suction curtain, which is submerged in the second water collection box, draws the water upward, increasing the water evaporation area affected by the airflow and improving the evaporation efficiency. The water suction curtain can continuously draw water from the upper and lower water collection boxes, increasing the contact area between water and air. At this time, in conjunction with the rotation of the fan, the natural physical evaporation of condensate can be accelerated, increasing the contact area between water and air, and at the same time accelerating the air flow rate on the contact surface to accelerate the natural evaporation of condensate, so as to achieve evaporation at the water molecule level that is invisible to the human eye.

[0022] Furthermore, to facilitate the connection of external condensate and to allow the condensate to circulate between the upper and lower water collection boxes, the water collection box assembly also includes a third water collection box and a fourth water collection box. The third water collection box is used to receive external condensate, and the fourth water collection box connects the third water collection box and the first water collection box in fluid communication. The third water collection box can also be in fluid communication with the second water collection box through the fourth water collection box, the first water collection box, and the water absorption curtain. The third water collection box can also be in direct fluid communication with the second water collection box.

[0023] Furthermore, in order to allow the condensate to circulate between the upper and lower water collection boxes, the third water collection box, the fourth water collection box, and the first water collection box are arranged adjacent to each other, and a suction pipe is connected between the fourth water collection box and the second water collection box to allow the condensate in the second water collection box to enter the fourth water collection box.

[0024] To enable automatic circulation of condensate, preferably, by utilizing negative pressure and atmospheric pressure, a channel with a gradually increasing cross-sectional area is formed upstream of the air inlet along the air circulation path, and the first water collection box is in fluid communication with the air inlet.

[0025] The housing also includes a first cover plate and a second cover plate disposed opposite to each other. The air inlet is opened on the first cover plate, and the lower end of the second cover plate is located inside the second water receiving box. The lower end of the second cover plate is higher than the bottom surface of the second water receiving box.

[0026] To facilitate the formation of an air inlet channel with a variable cross-section, the housing also includes guide plates disposed around the air inlet. The guide plates extend from the edge of the air inlet toward the outside of the housing, and the guide plates together form a channel with a gradually increasing cross-sectional area.

[0027] To ensure that the water in the third water receiving box can be directly guided to the second water receiving box, and can also be guided to the fourth water receiving box when negative pressure is generated, the third water receiving box and the fourth water receiving box share a first partition, and the first water receiving box and the fourth water receiving box share a second partition. The bottom of the first partition is concave to form a notch, and the height of the notch is h5.

[0028] The upper end of the water suction pipe is higher than the bottom surface of the fourth water receiving box by a height of h3, and the height of the second partition is h4.

[0029] The housing also includes a first drain pipe for guiding the condensate in the third water receiving box downwards, the upper end of the first drain pipe being higher than the bottom surface of the third water receiving box by a height of h1.

[0030] Each height satisfies the following relationship: h5 < h1 < h4 < h3.

[0031] Furthermore, the third water receiving box and the second water receiving box are directly fluidly connected through a drain pipe.

[0032] Furthermore, the fan includes a power impeller, the power impeller includes a shaft and a first blade, and the fan also includes a second blade that rotates coaxially with the power impeller;

[0033] The drain pipe includes a first drain pipe for guiding condensate from the third water collection box downwards to the power impeller, thereby causing the power impeller to rotate, and a second drain pipe for guiding water flowing down from the power impeller into the second water collection box. This allows the fan to be driven by external power.

[0034] To ensure that the condensate drips drive the power impeller, the vertical axis of the first drain pipe is offset from the axis of the power impeller.

[0035] To ensure that the condensate drips downwards rather than flowing down along the pipe wall, the inner circumferential wall of the upper end of the first drain pipe protrudes to form a ring-shaped third drain pipe, and there is a gap between the lower end of the third drain pipe and the inner circumferential wall of the corresponding position of the first drain pipe.

[0036] Furthermore, the water-absorbing curtain has an internal perforated structure. The fan's rotation drives airflow, and the flowing air, upon contact with the perforations of the water-absorbing curtain, naturally evaporates, causing a decrease in the temperature of the flowing air. When applied to a range hood, in a kitchen environment where the range hood is off, the air blown by the fan mixes with the indoor air to become room temperature air. Then, when the range hood is turned on, the indoor air is continuously exhausted outdoors by the fan. This exhausted air does not contain steam or moisture exceeding room temperature, as mentioned in the background technology, thus avoiding the problem of high-temperature water vapor condensing on the cold inner wall of the flue. In other words, utilizing the characteristic that the condensate is below room temperature, it physically evaporates and mixes evenly with the indoor ambient air to become room temperature gas, eliminating the problem of high-temperature evaporated gas condensing on the inner wall of the flue.

[0037] To ensure maximum water absorption area for both downward water absorption and downward dripping, the water absorption curtain includes at least three parallel first sidewalls and at least three parallel second sidewalls. The first and second sidewalls intersect each other, and two adjacent first sidewalls and two adjacent second sidewalls together form the holes.

[0038] Preferably, the thickness of the water-absorbing curtain is D, and D≥10mm. The larger the value of D, the longer the air flows through the holes, and the better the efficiency of water evaporation.

[0039] The technical solution adopted by the present invention to solve the second technical problem mentioned above is: a refrigeration device, characterized in that: it applies the condensate treatment device as described above.

[0040] The technical solution adopted by the present invention to solve the third technical problem mentioned above is: an electrical appliance, characterized in that: it applies the refrigeration device as described above.

[0041] Preferably, the appliance is a range hood.

[0042] Compared with the prior art, the advantages of the present invention are as follows: by setting up upper and lower water receiving boxes and a water suction curtain, when water accumulates in the lower second water receiving box, the water suction curtain submerged in the second water receiving box draws the water upward, increasing the water evaporation area affected by the airflow and improving the evaporation efficiency; the water suction curtain can continuously draw water from the upper and lower water receiving boxes, increasing the contact area between water and air; at this time, in conjunction with the rotation of the fan, the natural physical evaporation of condensate can be accelerated, increasing the contact area between water and air, and at the same time accelerating the air flow rate on the contact surface to accelerate the natural evaporation of condensate, so as to achieve evaporation at the level of water molecules that is invisible to the human eye. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of a condensate treatment device according to an embodiment of the present invention;

[0044] Figure 2 This is a schematic diagram of the condensate treatment device according to an embodiment of the present invention (and...). Figure 1 (Different perspectives);

[0045] Figure 3 This is a cross-sectional view (horizontal section) of the condensate treatment device according to an embodiment of the present invention;

[0046] Figure 4 This is a cross-sectional view (vertical section) of the condensate treatment device according to an embodiment of the present invention;

[0047] Figure 5 This is a cross-sectional view (vertical section, parallel to) of the condensate treatment device according to an embodiment of the present invention. Figure 4 (The cross-section is perpendicular);

[0048] Figure 6 This is a cross-sectional view (section and cross-section) of the condensate treatment device according to an embodiment of the present invention. Figure 5 parallel);

[0049] Figure 7 This is a schematic diagram of the water levels in the first and second water receiving boxes of the condensate treatment device according to an embodiment of the present invention (before negative pressure is generated);

[0050] Figure 8 This is a schematic diagram of the water levels in the first and second water receiving boxes of the condensate treatment device according to an embodiment of the present invention (after negative pressure is generated). Detailed Implementation

[0051] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions.

[0052] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Since the embodiments disclosed in this invention can be arranged in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0053] See Figures 1-6 A condensate treatment device is used in a refrigeration unit that employs conventional refrigeration technology and typically comprises a compressor, condenser, and evaporator. This refrigeration unit can be used in various electrical appliances, such as range hoods, integrated cooktops, and air conditioners.

[0054] The condensate treatment device of a preferred embodiment of the present invention includes a housing 1, a fan 2, and a water-absorbing curtain 3. The housing 1 has a first cover plate 101 and a second cover plate 102 arranged at a distance from each other. An air inlet 111 is formed on the first cover plate 101, and an air outlet 112 is formed on the second cover plate 102. The fan 2 is disposed on the side of the second cover plate 102 facing the first cover plate 101, and preferably close to the second cover plate 102. The fan 2 is an axial flow fan, and its air outlet corresponds to the air outlet 112 of the housing 1. Alternatively, part of the fan 2 may be located at the air outlet 112, as described below with the second blade 22. The water-absorbing curtain 3 is located between the air inlet 111 and the fan 2. To facilitate the guidance of air into the air inlet 111, the housing includes four guide plates 12 located around the air inlet 111. Each guide plate 12 extends obliquely from the corresponding edge of the air inlet 111 toward the direction away from the water curtain 3, forming a channel with a gradually increasing cross-sectional area toward the air inlet 111 between the guide plates 12.

[0055] The water-absorbing curtain 3 can be made of absorbent materials such as sponge or corrugated paper with good water absorption properties. The water-absorbing curtain 3 has a structure with holes 31 inside. Air entering from the air inlet 111 passes through the water-absorbing curtain 3 and reaches the fan 2. The structure of the water-absorbing curtain 3 adopts a cross design, that is, the water-absorbing curtain 3 includes at least three parallel first sidewalls 32 and at least three parallel second sidewalls 33. The first sidewalls 32 and the second sidewalls 33 intersect each other, such as being perpendicular to each other. The angle between each of the first sidewalls 32 and the second sidewall 33 and the vertical square is preferably 45°. Two adjacent first sidewalls 32 and two adjacent second sidewalls 33 together form a hole 31. In this way, whether it is dripping water from above or water being absorbed from the second water receiving box 16 (described in detail below), the maximum water absorption area can be achieved. In addition, the thickness D of the water-absorbing curtain 3 is ≥10mm. The larger the value of D, the longer the air flows through the hole 31, and the better the water evaporation efficiency.

[0056] The housing 1 also includes a first top plate 103 and a bottom plate 104, wherein the first top plate 103 extends from the upper end of the first cover plate 101 toward the second cover plate 102, but does not extend into the second cover plate 102. The bottom plate 104 extends from the position corresponding to the lower end of the first cover plate 101 toward the second cover plate 102 and extends beyond the second cover plate 102.

[0057] The housing 1 also includes a water receiving box assembly, comprising a first water receiving box 15, a second water receiving box 16, a third water receiving box 13, and a fourth water receiving box 14. The third water receiving box 13 is formed between the upper ends of the first top plate 103 and the second cover plate 102, and has an open upper end, exposed outside the housing 1. The fourth water receiving box 14 is disposed adjacent to the third water receiving box 13, and extends from a position corresponding to the end of the first top plate 103 toward and beyond the second cover plate 102. The fourth water receiving box 14 also has an open upper end, and a second top plate 105 is disposed above it. The second top plate 105 extends from the first top plate 103 toward and beyond the second cover plate 102. The first top plate 103 and the second top plate 105 may be integrally formed.

[0058] The first water receiving box 15 is located below the first top plate 103 and is also open at the top. The upper end of the fourth water receiving box 14 is lower than the second top plate 105, and the upper end of the first water receiving box 15 is lower than the first top plate 103. The first water receiving box 15 is arranged adjacent to the third water receiving box 13 and the fourth water receiving box 14 respectively, and the first water receiving box 15 is isolated from the third water receiving box 13, but is in fluid communication with the fourth water receiving box 14 (using the space between the upper ends of each top plate and the corresponding water receiving box). Since the first water receiving box 15 is lower than the first top plate 103, it is in fluid communication with the air inlet 111.

[0059] The third water inlet box 13 and the fourth water inlet box 14 share the first partition 191, and the first water inlet box 15 and the fourth water inlet box 14 share the second partition 192. The second partition 192 corresponds to the end of the first top plate 103 facing the second cover plate 102, and is lower than the first top plate 103 and the second top plate 105.

[0060] The base plate 104 is surrounded by a perimeter plate 106. The first cover plate 101 and the perimeter plate 106 on the corresponding side can be integrated, thereby the base plate 104 and the perimeter plate 106 together constitute the aforementioned second water receiving box 16. The perimeter plate 106 located between the first cover plate 101 and the second cover plate 102 can extend upward to the first top plate 103 and the second top plate 105.

[0061] A condensate pipe 131 is provided on the third water collection box 13, through which condensate from the refrigeration unit enters the third water collection box 13. The housing 1 also includes a first drain pipe 171 and a second pipe fitting 172. The first drain pipe 171 passes through the bottom of the third water collection box 13 and extends downward. The first drain pipe 171 is a pipe fitting with openings at both the top and bottom. Its upper end is higher than the bottom surface of the third water collection box 13 by a height of h1, which can be 6mm. This means that water in the third water collection box 13 will only flow down along the first drain pipe 171 when the water depth in the third water collection box 13 is greater than 6mm.

[0062] The fan 2 includes a power impeller 21, and a first drain pipe 171 is connected to the power impeller 21. Here, "connected" means that water flowing from the first drain pipe 171 can fall onto the power impeller 21. The vertical axis of the first drain pipe 171 ( Figure 4 The axis of the fan 2 (shown by the dashed line X) and the shaft of the fan 2 (the center of the power impeller 21) are offset and do not coincide, ensuring that the dripping water converts its potential energy into kinetic energy under the action of gravity, doing work on the power impeller 21 of the fan 2 to make it rotate. The inner peripheral wall of the upper end of the first drain pipe 171 protrudes to form a ring-shaped third drain pipe 173. There is a gap between the lower end of the third drain pipe 173 and the inner peripheral wall of the corresponding position of the first drain pipe 171. Thus, the third drain pipe 173 isolates the water droplets from being carried away by the wind, preventing the water droplets from flowing down the inner peripheral wall of the first drain pipe 171, thereby reducing the potential energy conversion of the water droplets, and allowing the water droplets to drip directly downwards to drive the power impeller 21.

[0063] To facilitate the installation of the power impeller 21, the fan 2 also includes a housing 23, which can be fixed to the housing 1 via a bracket, connecting rod, etc. The power impeller 21 includes a shaft 211 and a first blade 212. The first blade 212 of the power impeller 21 is installed inside the housing 23 and connected to the shaft 211. The shaft 211 is rotatably supported on the housing 23 and extends from inside the housing 23 to the outside. The vertical axis of the first drain pipe 171 is offset from the axis of the fan 2, which can also be understood as the vertical axis of the first drain pipe 171 not passing through the center of the shaft 211 on the same vertical section. The fan 2 also includes a second blade 22, which is located outside the housing 23. The second blade 22 has at least two blades, each connected to the shaft 211 of the power impeller 21, so that the second blade 22 can rotate coaxially with the power impeller 21 to form an axial flow impeller. The second blade 22 is used to draw in air from the air inlet 111 and discharge air to the air outlet 112.

[0064] The fan 2 is positioned above the second water receiving box 16. The first drain pipe 171 connects to the top of the casing 23 and is in fluid communication with the interior of the casing 23. The casing 1 also includes a second drain pipe 172, which extends downwards from the bottom of the casing 23 and is also in fluid communication with the interior of the casing 23. The bottom of the second drain pipe 172 is located above the second water receiving box 16. Thus, water flowing from the first drain pipe 171 passes through the power impeller 21 and is discharged into the second water receiving box 16 through the second drain pipe 172.

[0065] The top of the water-absorbing curtain 3 can be connected to the first water-receiving box 15, and the bottom of the water-absorbing curtain 3 is placed inside the second water-receiving box 16. A drain hole 151 is provided at the bottom of the first water-receiving box 15, corresponding to the side of the water-absorbing curtain 3 facing the air inlet 111. There may be at least two drain holes 151, extending along the length of the first water-receiving box 15. Figure 6 The water is evenly spaced in the direction perpendicular to the paper surface. This ensures that the condensate in the first water collection box 15 (the source of the condensate in the first water collection box 15 will be detailed below) can drip evenly onto the water absorption curtain 3 below.

[0066] Therefore, when water accumulates in the second water collection box 16, the water suction curtain 3, which is submerged in the second water collection box 16, draws the water upward, increasing the water evaporation area affected by the airflow and improving the water evaporation efficiency.

[0067] In this way, the water-absorbing curtain 3 can continuously draw water from the upper and lower water collection boxes, increasing the contact area between water and air. At this time, in conjunction with the rotation of the fan 2, the natural physical evaporation of condensate can be accelerated, increasing the contact area between water and air, and at the same time accelerating the air flow rate on the contact surface to accelerate the natural evaporation of condensate, so as to achieve evaporation at the water molecule level that is invisible to the human eye.

[0068] Furthermore, the rotation of fan 2 drives airflow, and the flowing air, upon contacting the holes 31 of the water absorption curtain 3, naturally evaporates, resulting in a slight decrease in the temperature of the flowing air. When applied to a range hood, in a kitchen environment where the range hood is off, the flowing air blown by the fan mixes with the indoor air to reach room temperature. Then, when the range hood is turned on, the indoor air is continuously exhausted outdoors by the fan. This exhausted air does not contain steam or moisture at temperatures higher than room temperature, as mentioned in the background technology, thus avoiding the problem of high-temperature water vapor condensing on the cool inner wall of the flue.

[0069] In other words, by taking advantage of the fact that the condensate is below the room temperature, it physically evaporates and enters the indoor air, where it mixes evenly with the room temperature air to become room temperature gas. This avoids the problem of high-temperature evaporated gas condensing on the inner wall of the flue, thus solving the problem of condensate flowing back into the oil cup of the range hood.

[0070] The distance between the lower end of the second cover plate 102 and the bottom surface of the second water collection box 16 is h2. Due to gravity, the water absorption curtain 3 can only reach the middle area, leaving the upper part unused. As condensate continues to drip from the third water collection box 13, the water level in the second water collection box 16 will exceed h2. This will seal the passage between the lower end of the second cover plate 102 and the bottom surface of the second water collection box 16, thus blocking the air intake passage at this location.

[0071] Due to the design of the baffle 12, the airflow channel from the baffle 12 to the air inlet 111 has a variable cross-section. When the fan 2 rotates continuously, it generates negative pressure in this channel. This negative pressure gradually travels to the first water collection box 15, and then to the fourth water collection box 14. A suction pipe 18 connects the fourth water collection box 14 to the second water collection box 16. The lower end of the suction pipe 18 is flush with the lower end of the second cover plate 102. Utilizing the pressure difference between the negative pressure at the upper end and atmospheric pressure at the lower end of the suction pipe 18, water is drawn from the second water collection box 16 into the fourth water collection box 14.

[0072] The upper end of the suction pipe 18 extends above the bottom surface of the fourth water receiving box 14 by a height of h3, which can be 10 mm. The height of the second partition 192 between the fourth water receiving box 14 and the first water receiving box 15 is h4, which can be 7 mm. The bottom of the first partition 191 shared by the fourth water receiving box 14 and the third water receiving box 13 is recessed to form a notch 193, with a height of h5, which can be 4 mm. The notch 193 allows fluid communication between the third water receiving box 13 and the fourth water receiving box 14. The above height parameters satisfy: h5 < h1 < h4 < h3.

[0073] When the water level in the third water collection box 13 is higher than h1, the water level line is as follows: Figure 7As shown in L1, the gap 193 connecting the fourth water box 14 and the third water box 13 is covered, which is less than the height of the second partition 192 between the fourth water box 14 and the first water box 15. At this time, all the condensate drips down from the first drain pipe 171.

[0074] After negative pressure is generated, the negative pressure area is transmitted to the fourth water receiving box 14, and the water drawn up by the suction pipe 18 will enter the fourth water receiving box 14. Under the action of internal negative pressure and external atmospheric pressure, a liquid level difference is generated between the water level line L3 in the fourth water receiving box 14 and the water level line L2 in the connected third water receiving box 13. The water level line L3 in the fourth water receiving box 14 is higher than the water level line L2 in the third water receiving box 13. See [reference needed]. Figure 8 When the water level L3 in the fourth water receiving box 14 is higher than the height of the second partition 192 between the fourth water receiving box 14 and the first water receiving box 15, the water in the fourth water receiving box 14 will flow to the first water receiving box 15, and then be evenly distributed onto the water absorption curtain 3 through the drain hole 151 on the bottom surface of the first water receiving box 15, increasing the evaporation area of ​​the upper part of the water absorption curtain 3. At the same time, a portion of the water will be diverted through the gap 193 connecting the fourth water receiving box 14 and the third water receiving box 13, continuously dripping to drive the fan 2, ultimately achieving continuous operation of the diversion and balancing system.

[0075] Therefore, by using this self-circulating method without external force, the physical evaporation of condensate in the water box is accelerated, solving the problem of water continuously accumulating in the water box and triggering alarms to remind manual emptying, thus achieving the technical effect of draining water without the need for manual emptying of the water box.

[0076] The term "fluid connectivity" as used in this invention refers to the spatial relationship between two components or parts (hereinafter referred to as the first part and the second part, respectively), that is, a fluid (gas, liquid, or a mixture of both) can flow from the first part along a flow path and / or be transported to the second part. This can be a direct connection between the first part and the second part, or an indirect connection between the first part and the second part through at least one third party. This third party can be a fluid channel such as a pipe, channel, conduit, guide, hole, or groove, or a chamber or combination thereof that allows fluid to flow through.

Claims

1. A condensate treatment device, comprising a housing (1); characterized in that: The housing (1) has an air inlet (111) and an air outlet (112) arranged opposite to each other; The condensate treatment device further includes: A fan (2) is used to draw air into the housing (1) from the air inlet (111) and discharge it from the air outlet (112); and The water-absorbing curtain (3) is located between the air inlet (111) and the fan (2) in the air flow path; The housing (1) further includes a water receiving box assembly, the water receiving box assembly comprising: The first water collection box (15) is located at the top of the water absorption curtain (3), and the condensate in the first water collection box (15) drips downwards onto the water absorption curtain (3); and The bottom of the water-absorbing curtain (3) extends to the second water-collecting box (16), and the condensate in the second water-collecting box (16) is sucked upward by the water-absorbing curtain (3); The water receiving box assembly also includes a third water receiving box (13) and a fourth water receiving box (14). The third water receiving box (13) is used to receive condensate from the outside. The fourth water receiving box (14) fluidly connects the third water receiving box (13) and the first water receiving box (15). The third water receiving box (13) can be fluidly connected to the second water receiving box (16) through the fourth water receiving box (14), the first water receiving box (15) and the water absorption curtain (3). The third water receiving box (13) can also be directly fluidly connected to the second water receiving box (16). The third water receiving box (13), the fourth water receiving box (14) and the first water receiving box (15) are arranged adjacent to each other, and a water suction pipe (18) is connected between the fourth water receiving box (14) and the second water receiving box (16) to allow the condensate in the second water receiving box (16) to enter the fourth water receiving box (14). In the air circulation path, an upstream channel with a gradually increasing cross-sectional area is formed in the direction of the air inlet (111). The first water receiving box (15) is fluidly connected to the air inlet (111). The upper end of the water suction pipe (18) is higher than the bottom surface of the fourth water receiving box (14), so that the upper end of the water suction pipe (18) is fluidly connected to the air inlet (111) through the fourth water receiving box (14) and the first water receiving box (15). The housing (1) also includes a first cover plate (101) and a second cover plate (102) arranged opposite to each other. The air inlet (111) is opened on the first cover plate (101). The lower end of the second cover plate (102) is located inside the second water receiving box (16). The lower end of the second cover plate (102) is higher than the bottom surface of the second water receiving box (16). The distance between the lower end of the second cover plate (102) and the bottom surface of the second water receiving box (16) is h2. The lower end of the water suction pipe (18) is flush with the lower end of the second cover plate (102). When the water level in the second water receiving box (16) exceeds h2, the upper end of the water suction pipe (18) is under negative pressure and the lower end is under atmospheric pressure, so that the water suction pipe (18) can draw water from the second water receiving box (16) to the fourth water receiving box (14). The third water receiving box (13) and the fourth water receiving box (14) share a first partition (191), and the first water receiving box (15) and the fourth water receiving box (14) share a second partition (192). The bottom of the first partition (191) is concave to form a notch (193), and the height of the notch (193) is h5. The upper end of the water suction pipe (18) is h3 above the bottom surface of the fourth water receiving box (14), and the height of the second partition (192) is h4. The housing (1) also includes a first drain pipe (171) for guiding the condensate in the third water receiving box (13) downwards. The upper end of the first drain pipe (171) is higher than the bottom surface of the third water receiving box (13) by a height of h1. Each height satisfies the following relationship: h5 < h1 < h4 < h3.

2. The condensate treatment device according to claim 1, characterized in that: The housing (1) also includes a guide plate (12) disposed around the air inlet (111). The guide plate (12) extends from the edge of the air inlet (111) toward the outside of the housing (1), and the guide plates (12) form a channel with a gradually increasing cross-sectional area.

3. The condensate treatment device according to claim 1, characterized in that: The third water receiving box (13) and the second water receiving box (16) are directly fluidly connected through a drain pipe.

4. The condensate treatment device according to claim 3, characterized in that: The fan (2) includes a power impeller (21), the power impeller (21) includes a rotating shaft (211) and a first blade (212), and the fan (2) also includes a second blade (22) that rotates coaxially with the power impeller (21); The drain pipe includes a first drain pipe (171) for guiding the condensate in the third water collection box (13) downward to the power impeller (21) so that the power impeller (21) rotates, and a second drain pipe (172) for guiding the water flowing down from the power impeller (21) into the second water collection box (16).

5. The condensate treatment device according to claim 4, characterized in that: The vertical axis of the first drain pipe (171) is offset from the axis of the power impeller (21).

6. The condensate treatment device according to claim 4, characterized in that: The inner peripheral wall of the upper end of the first drain pipe (171) protrudes to form an annular third drain pipe (173), and there is a gap between the lower end of the third drain pipe (173) and the inner peripheral wall of the corresponding position of the first drain pipe (171).

7. The condensate treatment device according to claim 1, characterized in that: The water-absorbing curtain (3) has a structure with holes (31) inside.

8. The condensate treatment device according to claim 7, characterized in that: The water-absorbing curtain (3) includes at least three parallel first sidewalls (32) and at least three parallel second sidewalls (33), which intersect each other, and two adjacent first sidewalls (32) and two adjacent second sidewalls (33) together form the hole (31).

9. The condensate treatment device according to claim 7, characterized in that: The thickness of the water-absorbing curtain (3) is D, and D≥10mm.

10. A refrigeration device, characterized in that: The application includes a condensate treatment device as described in any one of claims 1 to 9.

11. An electrical appliance, characterized in that: The application includes the refrigeration device as described in claim 10.

12. The electrical appliance according to claim 11, characterized in that: The appliance in question is a range hood.

Images