CN214107609U

CN214107609U - Environment-friendly spray paint cascade clarification plant

Info

Publication number: CN214107609U
Application number: CN202023109709.5U
Authority: CN
Inventors: 林惠生
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-09-03
Anticipated expiration: 2030-12-22

Abstract

The utility model relates to the technical field of paint spraying, in particular to an environment-friendly paint spraying water curtain purification device, which comprises a device body, an overflow groove, a water curtain plate, an exhaust fan and a water pump, wherein the device body is internally provided with a mounting cavity, the overflow groove is arranged on the top surface of the mounting cavity, the side surface of the overflow groove is provided with an overflow gap, the water curtain plate is vertically arranged below the overflow gap and is fixedly connected with the overflow groove, the mounting cavity is divided into a right cavity and a left cavity by the water curtain plate, the side surface of the right cavity is provided with an opening, the left cavity is internally provided with a plurality of water blocking plates which are arranged in a staggered way, the top of the device body is provided with an exhaust opening, the exhaust fan is positioned on the exhaust opening, the overflow groove is arranged on the top surface of the mounting cavity, the water curtain plate is vertically arranged below the overflow groove, water flows out from the overflow groove and then forms a water curtain on the water curtain plate, paint mist enters the right cavity from the opening, the paint mist moves from the right cavity to the left cavity under the action of the exhaust fan, the water blocking plate is arranged in the left cavity in a staggered mode, and the efficiency of adsorbing and filtering paint mist in the left cavity is higher.

Description

Environment-friendly spray paint cascade clarification plant

Technical Field

The utility model relates to a technical field that sprays paint, in particular to environment-friendly cascade clarification plant that sprays paint.

Background

Paint mist clarification plant takes out filterable water in the water tank to upper overflow tank through the pipe-line pump circulation, form the cascade by overflow tank overflow to the cascade board, and through the centrifugal force of air exhauster, form the vortex with the water in the paint mist clarification plant, produce multilayer water curtain, with the paint mist that the spray gun drifted away at spray booth application work by induced drafting guide, wash in the water, through the washing of the cascade of paint mist lacquer clarifier and water smoke and filter, collect the filter screen through gas water separator paint baffle again, thereby accomplish the effect that paint mist purification played the environmental protection, it is healthy to have guaranteed operating personnel again, good operational environment.

There is the following problem among the prior art, current coating cloud clarification plant, the coating cloud receive under the effect of the centrifugal force of air exhauster, the stroke in coating cloud clarification plant is shorter, and is relatively poor to the filter effect of coating cloud, is not taken out coating cloud clarification plant by the air exhauster by filterable coating cloud, causes to carry out the clearance of large face, resource-wasting to air exhauster, coating cloud clarification plant.

SUMMERY OF THE UTILITY MODEL

Therefore, the environment-friendly spray water curtain purification equipment needs to be provided, and the problems that the travel of paint mist in the paint mist purification equipment is short, the paint mist cannot be completely filtered and the like are solved.

For realizing the above-mentioned purpose, the utility model provides an environment-friendly cascade clarification plant that sprays paint, including device body, overflow tank, cascade board, air exhauster and water pump, this internal installation cavity that is equipped with of device, the overflow tank sets up on the installation cavity top surface, the water pump is fixed to be set up in the installation cavity bottom and with overflow tank water path connection, be equipped with the gap on the side of overflow tank, the vertical setting of cascade board in the below of gap and with overflow tank fixed connection, the cascade board divide into right side chamber and left chamber with the installation cavity, left side chamber and right chamber bottom communicate, be equipped with the opening on the right side chamber is relative with the cascade board, left side intracavity side is equipped with the water blocking board of a plurality of dislocation sets, device body top is equipped with the suction opening, the suction opening is linked together with left chamber, the air exhauster is located the suction opening.

Further, the water curtain plate is an arc plate, the arc plate is bent towards the opening, a serrated plate is fixed to the bottom of the arc plate, and the serrated plate is arranged vertically. Compared with the water curtain plate which is a straight plate, when water flows through the arc plate, the water flow is more attached to the arc plate, the flow velocity of the water flow is reduced, the phenomenon that the combination of water and paint mist is insufficient due to the fact that the flow velocity is too high is avoided, meanwhile, the water curtain plate in the left cavity is an arc surface protruding towards the right cavity, after the water flow and the paint mist are intercepted by the water blocking plate under the action of the exhaust fan, due to the fact that the water curtain plate has a certain radian, the water flow and the paint mist can better flow downwards and are filtered by the filter box again under the action of gravity; the below of cascade board is equipped with serration plate, and serration plate can play the effect of reposition of redundant personnel to rivers, falls into the little rivers of stranded with rivers on the cascade board for better by the suction of air exhauster suction left intracavity after rivers and the coating cloud combine.

Further, the installation cavity is kept away from the slope of open-ended side and is equipped with the mounting panel, left side chamber is the space between mounting panel and the water curtain board, and the chamber is placed to the side constitution of mounting panel and installation cavity, the intracavity is being placed in the fixed setting of water pump, the bottom of mounting panel inclines towards the water curtain board, the bottom of mounting panel is fixed with horizontally water conservancy diversion bottom plate, the water conservancy diversion bottom plate is located the below of water curtain board, water conservancy diversion bottom plate and installation cavity bottom surface interval set up, the space between water conservancy diversion bottom plate and the installation cavity bottom surface forms the basin, the basin with place the chamber intercommunication, be equipped with the notch on the water conservancy diversion bottom plate. The mounting panel slope sets up, and coating cloud and moisture are intercepted by the water blocking plate under the effect of air exhauster, and the downflow that moisture that is located on the mounting panel can be better is filtered by the filter cartridge once more, and the water pump setting is outside the stroke of coating cloud, and water supply and the filterable process mutual independence of coating cloud guarantee the stability of coating cloud clarification plant working process each other. The bottom of the mounting cavity is provided with a water tank, and in the process of filtering paint mist, water flows into the water tank and then continues to flow into the placing cavity and is discharged by a water pump.

Further, a plurality of water-stop plates dislocation set on the relative side of mounting panel and water curtain plate, a side and mounting panel or water curtain plate fixed connection of water-stop plate, the relative side of water-stop plate is the free limit, the free limit of water-stop plate is fixed with a plurality of hang plates that connect gradually, the bottom slope of hang plate cavity left orientation. A plurality of water blocking plates are arranged in a staggered mode, the stroke of the paint mist in the left cavity is increased under the driving of water flow, and the paint mist can be filtered to the greatest extent. The bottom slope of hang plate orientation left chamber plays the effect of interception to the coating cloud, and the moisture and the coating cloud that are intercepted under the effect of gravity flow downwards again through the filtration of filter cartridge, guarantee that most coating cloud is absorbed in left intracavity.

Furthermore, the bottom of the mounting plate is provided with a filter box, the side surface of the filter box is provided with a plurality of through holes, and pall ring filling materials are filled in the filter box. The paint mist enters the filter box from the through hole of the filter box, the paint mist is adsorbed by the pall ring filling material in the filter box, and meanwhile, the filter box plays a limiting role in the pall ring filling material, so that the pall ring filling material is prevented from being unevenly distributed under the action of the exhaust fan, and the filter effect is prevented from being influenced.

Furthermore, the inclined plate of the water baffle plate positioned at the lowest part of the water curtain plate is fixedly connected with the filter box. The inclined plate positioned at the lowest part of the water curtain plate is fixedly connected with the filter box, so that the paint mist can only pass through the filter box, and the filter box can play a filtering role to the maximum extent.

Furthermore, a guide plate is fixed on the guide bottom plate and located in the left cavity, one side of the guide plate is fixedly connected with the guide bottom plate, and the other side of the guide plate inclines towards the filter box. The guide plate plays the effect of water conservancy diversion to the coating cloud, and the guide coating cloud is at the effect of air exhauster to moving towards the filter cartridge, prevents that the coating cloud from not directly being taken out by the air exhauster through the filter cartridge in the left intracavity.

Further, a spray nozzle is arranged above the filter box, a water delivery pipe is arranged on the water pump, the water delivery pipe comprises a main pipe and a first branch pipe, a second branch pipe and a third branch pipe, the main pipe is vertically arranged, the first branch pipe, the second branch pipe and the third branch pipe are horizontally arranged, the main pipe is communicated with the first branch pipe, the second branch pipe and the spray nozzle, the third branch pipe is communicated with the overflow tank, a control valve is arranged on the main pipe, a drain valve is arranged on the first branch pipe, a spray valve is arranged on the second branch pipe, and a water curtain valve is arranged on the third branch pipe. The spray head plays a second filtering role in the paint mist, most of the paint mist passes through the filter box and is absorbed and filtered by the pall ring filling materials, a small amount of paint mist passes through the filter box, and the water mist sprayed by the spray head drives the small amount of paint mist to return to the filter box to filter the paint mist again. The control valve controls the water flow direction in the whole main pipe, the drain valve controls the size of water flow in the first branch pipe, the spray valve controls the size of water flow of the spray head, and the water curtain valve controls the size of water flow overflowing from the overflow groove.

Furthermore, a flow controller is arranged on the control valve and electrically connected with the water pump and the exhaust fan. The size of rivers in the flow controller control main line, when paint mist clarification plant broke down and lead to rivers too big in the main line, flow controller will control water pump and air exhauster stop work, and the staff overhauls the trouble.

Further, still include power module, power module includes block terminal and button, the block terminal is fixed to be set up at the installation cavity top, button one end and block terminal electric connection, the other end of button runs through the side of installation cavity, block terminal and water pump, air exhauster electric connection.

Different from the prior art, the technical scheme has the following beneficial effects:

the overflow tank sets up on the top surface of installation cavity, the vertical setting of water curtain board is in the below of overflow tank, water forms the cascade on the water curtain board after flowing out from the overflow tank, behind the coating cloud enters into the right side chamber from the opening, use rivers to move as the carrier, the air exhauster is located the top of device body, be linked together through suction opening and left chamber, the coating cloud moves from the right side chamber to the left side chamber under the effect of air exhauster, water blocking plate dislocation set is in the left side intracavity, make the stroke of coating cloud in the left side intracavity increase, the coating cloud is adsorbed filterable efficiency higher in the left side intracavity, coating cloud and moisture are under the effect of water blocking plate simultaneously, most are intercepted the secondary filter through the filter box, only need wash the change around the filter box at abluent in-process, manpower resources are saved.

Drawings

FIG. 1 is a schematic structural diagram of a purification apparatus according to an embodiment;

fig. 2 is a schematic cross-sectional structure diagram of the purification apparatus according to the embodiment.

Description of reference numerals:

1. a device body; 101. an overflow tank; 102. an overflow port; 103. a water curtain plate; 104. an exhaust fan; 105. an air suction opening; 106. an opening; 107. a right lumen; 108. mounting a plate; 109. a water-stop plate; 1091. a horizontal plate; 1092. an inclined plate; 110. a flow guide bottom plate; 111. a baffle; 112. a water tank; 113. a mounting cavity; 114. a placement chamber; 115. a notch; 116. a spray head; 117. a filter cartridge; 118. a through hole; 119. a left lumen;

2. a water pump; 201. a main pipe; 202. a first branch pipe; 203. a second branch pipe; 204. a third branch pipe; 205. a drain valve; 206. a spray valve; 207. a water curtain valve; 208. a control valve; 209. a flow controller;

3. a power supply module; 301. a power distributor; 302. a button.

Detailed Description

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Referring to fig. 1 and 2, the present embodiment discloses an environment-friendly spray painting water curtain purifying apparatus, which includes an apparatus body 1, an overflow trough 101, a water curtain plate 103, three water blocking plates 109, an exhaust fan 104 and a water pump 2; the device body 1 is internally provided with an installation cavity 113, an overflow groove 101 is fixedly arranged on the top surface of the installation cavity 113, an overflow gap 102 is arranged on the side surface of the overflow groove 101, a water curtain plate 103 is vertically arranged below the overflow gap 102 and fixedly connected with the overflow groove 101, the curtain plate is an arc plate, a sawtooth plate is fixedly arranged at the bottom of the arc plate, the sawtooth plate is vertically arranged, compared with the case that the water curtain plate 103 is a straight plate, when water flows pass through the arc plate, the water flows are more attached to the arc plate, the flow speed of the water flows is reduced, the situation that the combination of the water and paint mist is insufficient due to the overhigh flow speed is avoided, meanwhile, the water curtain plate 103 in the left cavity 119 is an arc surface protruding towards the right cavity 107, and after the water flows and the paint mist are intercepted by a water blocking plate 109 under the action of an exhaust fan 104, due to the fact that the water curtain plate 103 has a certain radian, the water flows downwards better under the action of gravity and the paint mist is filtered by a filter box 1017 again; a serrated plate is arranged below the water curtain plate 103, the serrated plate can split water flow, the water flow on the water curtain plate 103 is divided into a plurality of small water flows, and the water flow and paint mist are better sucked into the left cavity 119 by the exhaust fan 104 after being combined. The water curtain plate 103 divides the installation cavity 113 into a right cavity 107 and a left cavity 119, the bottoms of the left cavity 119 and the right cavity 107 are communicated, an opening 106 is arranged on the side surface of the right cavity 107 opposite to the water curtain plate, and the arc plate is bent towards the opening 106. The side of the mounting cavity 114, which is far away from the opening 106, is obliquely provided with a mounting plate 108, the left cavity 119 is a space between the mounting plate 108 and the water curtain plate 103, the bottom of the mounting plate 108 is inclined towards the water curtain plate 103, the bottom of the mounting plate 108 is fixedly provided with a horizontal flow guide bottom plate 110, the flow guide bottom plate 110 is positioned below the water curtain plate 103, and the bottom of the mounting plate 108 is provided with the horizontal flow guide bottom plate 110. The top of the device body 1 is provided with an air suction opening 105, the air suction opening 105 is communicated with the left cavity 119, and the exhaust fan 104 is positioned on the air suction opening 105.

Three water blocking plates 109 are fixed on the opposite side surfaces of the water curtain plate 103 and the mounting plate 108 and are arranged in a staggered mode, the water blocking plates 109 are arranged in a staggered mode, the stroke of paint mist in the left cavity 119 under the driving of water flow is increased, and the paint mist can be filtered to the greatest extent. One side of the water baffle plate 109 is fixedly connected with the mounting plate 108 or the water curtain plate 103, the opposite side of the water baffle plate 109 is a free side, the free side of the water baffle plate 109 is fixed with a plurality of sequentially connected inclined plates 1092, and the inclined plates 1092 incline towards the bottom of the left cavity 119. The inclined plate 1092 is inclined toward the bottom of the left cavity 119 to intercept paint mist, and the intercepted moisture and paint mist flow downward under the action of gravity and are filtered by the filter box 117 again to ensure that most of the paint mist is absorbed in the left cavity 119. The bottom of the mounting plate 108 is provided with a filter box 117, the side surface of the filter box 117 is provided with a plurality of through holes 118, pall ring filling materials are arranged in the filter box 117, paint mist enters the filter box 117 from the through holes 118 of the filter box 117, the paint mist is adsorbed by the pall ring filling materials in the filter box 117, and meanwhile, the filter box 117 plays a limiting role in the pall ring filling materials, so that the pall ring filling materials are prevented from being unevenly distributed under the action of the exhaust fan 104, and the filtering effect is prevented from being influenced. The inclined plate 1092 of the water baffle plate 109 located at the lowest part of the water curtain plate 103 is fixedly connected with the filter box 117, so that the paint mist can only pass through the filter box 117, and the filter box 117 can play the own filtering function to the maximum extent. The guide plate 111 is arranged on the guide bottom plate 110, the guide plate 111 is located in the left cavity 119, one side of the guide plate 111 is fixedly connected with the guide bottom plate 110, the other side of the guide bottom plate 110 inclines towards the filter box 117, the guide plate 111 plays a role in guiding paint mist to move towards the filter box 117 under the action of the exhaust fan 104, and the paint mist is prevented from being directly extracted out by the exhaust fan 104 without passing through the filter box 117 in the left cavity 119.

The mounting plate 108 and the side of the mounting cavity 113 form a placing cavity 114, the diversion bottom plate 110 and the bottom of the mounting cavity 113 are arranged at intervals, a water tank 112 is formed in the space between the diversion bottom plate 110 and the bottom of the mounting cavity 113, the water tank 112 is communicated with the placing cavity 114, a notch 115 is formed in the edge, close to the opening 106, of the diversion bottom plate 110, the water tank 112 is arranged at the bottom of the mounting cavity 113, in the paint mist filtering process, water flows into the water tank 112 and then flows into the placing cavity 114 to be discharged through the water pump 2, the water pump 2 is fixed in the placing cavity 114, the water pump 2 is arranged outside the paint mist stroke, the water supply and paint mist filtering processes are independent from each other, the mutual influence is avoided, and the stability of the working process of the purifying equipment is guaranteed. The water pump 2 is provided with a water delivery pipe, and the water delivery pipe comprises a main pipe 201 which is vertically arranged, and a first branch pipe 202, a second branch pipe 203 and a third branch pipe 204 which are horizontally arranged; the main pipe 201 is communicated with a first branch pipe 202, a second branch pipe 203 and a third branch pipe 204, and the first branch pipe 202 is communicated with the outside; one end of the second branch pipe 203 is fixedly connected with the middle part of the main pipe 201, the other end of the second branch pipe 203 penetrates through the mounting plate 108 to enter the left cavity 119, and a spray head 116 is arranged, the spray head 116 is positioned above the filter box 117, and the spray head 116 is communicated with the second branch pipe 203; one end of the third branch pipe 204 is fixedly connected with the top of the main pipe 201, and the other end of the third branch pipe 204 passes through the side surface of the overflow tank 101 to be communicated with the overflow tank 101. The main pipe 201 is provided with a control valve 208, the control valve 208 is provided with a flow controller 209, the flow controller 209 is electrically connected with the water pump 2 and the exhaust fan 104, the first branch pipe 202 is provided with a drain valve 205, the second branch pipe 203 is provided with a spray valve 206, the third branch pipe 204 is provided with a water curtain valve 207, the spray nozzle 116 performs a second secondary filtering function on the paint mist, most of the paint mist passes through the filter box 117 and is adsorbed and filtered by pall ring filling materials, a small amount of the paint mist passes through the filter box 117, and the water mist sprayed by the spray nozzle 116 drives the small amount of the paint mist to return to the filter box 117 and filter the paint mist. The water flow trend in the whole person in charge 201 of control valve 208 control, flow controller 209 control is responsible for the size of 201 interior rivers of being responsible for, when paint mist clarification plant broke down and lead to being responsible for 201 interior rivers too big, flow controller 209 will control water pump 2 and air exhauster 104 stop work, the staff overhauls the trouble, the size of rivers in the first branch pipe 202 of drain valve 205 control, the rivers size of shower nozzle 116 is controlled to spray valve 206, the rivers size that overflow groove 101 spills over is controlled to water curtain valve 207.

Still include power module 3, power module 3 includes block terminal and button 302, and the block terminal is fixed to be set up at 113 tops of installation cavity, button 302 one end and block terminal electric connection, and the medial surface of installation cavity 113 is run through to the other end of button 302, block terminal and water pump 2, air exhauster 104 electric connection.

During assembly, pall ring filling is placed in the filter box 117, and the spray valve 206 and the water curtain valve 207 are adjusted according to the required water flow rate, so that the filter can be used.

In use, a user sprays paint towards the opening 106, the paint mist moves downwards in the vertical direction into the right cavity 107 by using the water curtain as a carrier, and the paint mist moves from the right cavity 107 to the left cavity 119 under the action of the exhaust fan 104; in the process that the paint mist passes through the filter box 117 in the right cavity 107, the paint mist is adsorbed and filtered by the pall ring filling material, and only a small part of the paint mist can pass through the filter box 117; the paint mist which is not filtered by the filter box 117 flows downwards again to pass through the secondary filtration of the filter box 117 under the action of the spray head 116, so that higher filtration effect is achieved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrases "comprising … …" or "comprising … …" does not exclude the presence of additional elements in a process, method, article, or terminal that comprises the element. Further, herein, "greater than," "less than," "more than," and the like are understood to exclude the present numbers; the terms "above", "below", "within" and the like are to be understood as including the number.

Although the embodiments have been described, once the basic inventive concept is known, other changes and modifications can be made to the embodiments by those skilled in the art, so that the above embodiments are only examples of the present invention, and not intended to limit the scope of the present invention, and all the modifications of the equivalent structure or equivalent flow path using the contents of the specification and the drawings of the present invention, or directly or indirectly using other related technical fields are also included in the scope of the present invention.

Claims

1. The utility model provides an environment-friendly cascade clarification plant that sprays paint, its characterized in that, includes device body, overflow tank, cascade board, air exhauster and water pump, this internal installation cavity that is equipped with of device, the overflow tank sets up on the installation cavity top surface, the water pump is fixed to be set up in the installation cavity bottom and with overflow tank water path connection, be equipped with the gap on the side of overflow tank, the vertical setting of cascade board in the below of gap and with overflow tank fixed connection, the cascade board divide into right side chamber and left chamber with the installation cavity, left side chamber and right chamber bottom communicate, be equipped with the opening on the right side chamber relative with the cascade board, left side intracavity side is equipped with the water blocking board of a plurality of dislocation sets, device body top is equipped with the suction opening, the suction opening is linked together with left chamber, the air exhauster is located the suction opening.

2. The purification apparatus of claim 1, wherein the water curtain plate is an arc plate, the arc plate is bent towards the opening, a serrated plate is fixed to the bottom of the arc plate, and the serrated plate is vertically arranged.

3. The purifying equipment as claimed in claim 1, wherein a mounting plate is provided on the side of the mounting cavity away from the opening in an inclined manner, the left cavity is a space between the mounting plate and the water curtain plate, the mounting plate and the side of the mounting cavity form a placing cavity, the water pump is fixedly provided in the placing cavity, the bottom of the mounting plate is inclined toward the water curtain plate, a horizontal flow guide bottom plate is fixed to the bottom of the mounting plate, the flow guide bottom plate is located below the water curtain plate, the flow guide bottom plate is arranged at an interval with the bottom surface of the mounting cavity, a water tank is formed in the space between the flow guide bottom plate and the bottom surface of the mounting cavity, the water tank is communicated with the placing cavity, and a notch is provided on the flow guide bottom plate.

4. The purification apparatus of claim 3, wherein the plurality of water-blocking plates are arranged on opposite sides of the mounting plate and the water curtain plate in a staggered manner, one side of each water-blocking plate is fixedly connected with the mounting plate or the water curtain plate, the opposite sides of each water-blocking plate are free sides, a plurality of sequentially connected inclined plates are fixed on the free sides of the water-blocking plates, and the inclined plates are inclined towards the bottom of the left chamber.

5. The purifying apparatus as claimed in claim 4, wherein the bottom of the mounting plate is provided with a filter cartridge, the side of the filter cartridge is provided with a plurality of through holes, and the filter cartridge is filled with pall ring filler.

6. The purification apparatus of claim 5, wherein the inclined plate of the water trap plate positioned at the lowermost portion of the water curtain plate is fixedly connected to the filter cassette.

7. The purifying apparatus as claimed in claim 5, wherein a guide plate is fixed on the guide bottom plate, the guide plate is located in the left chamber, one side of the guide plate is fixedly connected with the guide bottom plate, and the other side of the guide plate is inclined towards the filter box.

8. The purifying equipment according to claim 5, wherein a nozzle is arranged above the filter box, a water delivery pipe is arranged on the water pump, the water delivery pipe comprises a main pipe arranged vertically and a first branch pipe, a second branch pipe and a third branch pipe arranged horizontally, the main pipe, the first branch pipe, the second branch pipe and the third branch pipe are communicated with each other, the first branch pipe is communicated with the outside, the second branch pipe is communicated with the nozzle, the third branch pipe is communicated with the overflow tank, a control valve is arranged on the main pipe, a drain valve is arranged on the first branch pipe, a spray valve is arranged on the second branch pipe, and a water curtain valve is arranged on the third branch pipe.

9. The purification apparatus as claimed in claim 8, wherein the control valve is provided with a flow controller, and the flow controller is electrically connected with the water pump and the exhaust fan.

10. The purifying equipment of claim 1, further comprising a power module, wherein the power module comprises a distribution box and a button, the distribution box is fixedly arranged at the top of the installation cavity, one end of the button is electrically connected with the distribution box, the other end of the button penetrates through the side face of the installation cavity, and the distribution box is electrically connected with the water pump and the exhaust fan.