CN210861535U - Washing and humidifying equipment of air-conditioning box - Google Patents

Abstract

The utility model discloses a washing and humidifying equipment of air-conditioning box, relate to the technical field of humidification, its technical scheme main points are including installing the humidification chamber in the air-conditioning box, install water distributor and intake pipe in the humidification chamber, be provided with a plurality of shower nozzles on the water distributor, the shower nozzle includes outlet pipe and the shower cap of installing on the outlet pipe, be equipped with the inlet opening that communicates water distributor and shower cap in the outlet pipe, be equipped with the inlet port of intercommunication intake pipe on the lateral wall of shower cap, be equipped with valve and atomizing device in the shower cap, the valve includes the elastic component and is supported the current-limiting tip that tightly at the inlet opening by the elastic component, when rivers push away the current-limiting tip and compress the current-limiting tip, rivers enter the shower cap in order to start; the pressure of the elastic pieces in each spraying cap to the current-limiting tip is different, and the water pressure in the water distribution pipe is increased or decreased to control the water flow to enter more or less spraying caps to open the atomizing devices, so that the humidity of the humidifying chamber is correspondingly controlled, the arrangement of an electric valve is avoided, and the electric energy is saved.

Description

Washing and humidifying equipment of air-conditioning box

Technical Field

The utility model relates to a humidification technical field, in particular to washing and humidifying equipment of air-conditioning box.

Background

A clean room, also called a clean room or a clean room, is a room designed to reduce contaminants such as particles, harmful air, bacteria, etc. in indoor air to below a predetermined level, and to control indoor temperature, cleanliness, indoor pressure, airflow velocity and airflow distribution, noise vibration, illumination, and static electricity within a certain range of requirements. No matter how the external air condition changes, the indoor can maintain the originally set required performances of cleanliness, temperature and humidity, pressure and the like.

At present, the humidity of a clean room is generally controlled through a water washing humidification section in an air conditioning box, and specifically, in order to humidify the clean room, pure water is atomized and sprayed into a water washing chamber through a spray head in the water washing humidification section of the air conditioning box and then brought into the clean room through the wind power of air. Because the humidity in the clean room can change, the humidity of the humidified gas needs to be correspondingly adjusted, an electric valve is arranged in the spray head in the common method, and the opening and closing of the valve are controlled through a circuit, so that the humidification degree of the air by the water washing humidification section is adjusted.

However, although this method can accurately control the opening and closing of the valve in the air conditioning cabinet to control the humidification level, the structure is relatively complex, power needs to be continuously supplied to the valve to control the opening and closing of the valve, and the power consumption is large.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a washing and humidification equipment of air-conditioning box, it can control the quantity of opening of spouting the cap through controlling hydraulic size to correspondingly control the humidity of humidification room, avoided electric valve's setting, have the advantage of saving the electric energy.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a water washing and humidifying device of an air conditioning box comprises a humidifying chamber arranged in the air conditioning box, a water distribution pipe used for conveying clean water is arranged in the humidifying chamber, a plurality of nozzles are arranged on the water distribution pipe at intervals, the water distribution pipe is provided with air inlet pipes used for conveying high-pressure clean air in parallel, the spray head comprises a water outlet pipe arranged on the water distribution pipe and a spray cap arranged on the water outlet pipe, a water inlet hole communicated with the water distribution pipe and the spray cap is arranged in the water outlet pipe, the side wall of the spray cap is provided with an air inlet communicated with the air inlet pipe, the spray cap is internally provided with a valve and an atomization device for mixing and atomizing water and gas in the spray cap, the valve comprises an elastic piece and a flow-limiting tip which is propped against the water inlet hole by the elastic piece, and when the pressure of the elastic piece on the flow-limiting tip is smaller than the pressure of water flow on the flow-limiting tip, the water flow pushes away the flow-limiting tip and enters the spray cap to start the atomization device of the spray cap; the pressure of the elastic piece in each spray cap on the flow limiting tip is different, and the water pressure in the water distribution pipe is increased or decreased to control the water flow to enter more or fewer spray caps to open the atomization device.

Through adopting above-mentioned technical scheme, the current-limiting is most advanced to support the inlet opening under the effect of elastic component, and when rivers were less than the elastic component to the most advanced pressure of current-limiting in the water distribution pipe, the most advanced pressure of current-limiting was supported tightly on the inlet opening, produced the seal effect to the inlet opening for rivers can't get into through the inlet opening and spout inside the cap, spout the cap and be in the off-state this moment, and the inlet port flows into the gas that spouts the cap and does not mix with rivers and directly flows from spouting the cap. When the pressure of the water flow in the water distribution pipe to the flow-limiting tip is larger than the pressure of the elastic piece to the flow-limiting tip, the water flow pushes the flow-limiting tip to enter the spray cap, and the water flow is mixed with high-pressure clean gas flowing in the air inlet in the spray cap and is sprayed and atomized at high speed under the action of the atomizing device, so that the effect of humidifying air is achieved.

Because the pressure of the elasticity in each spray cap on the flow-limiting tip is different, the opening water pressure threshold of each spray cap is also different, when the water pressure is high, more flow-limiting tips in the spray caps are pushed away by water flow, are mixed with gas and are sprayed out after being processed by the atomization device. When the water pressure is low, more current-limiting tips in the spray cap are tightly propped against the water inlet hole, water flow cannot enter the spray cap, and the atomization device in the spray cap stops working. In summary, the opening number of the spray caps can be controlled by controlling the water pressure, so as to control the humidity of the humidification chamber correspondingly.

In addition, because water flow can enter the spray cap by needing larger pressure and atomizes, the higher water pressure enables the atomizing effect of the spray cap to be better.

Further setting: atomizing device includes the current-limiting plate and installs the current-limiting plate on the current-limiting plate, the terminal surface of outlet pipe is kept away from to the current-limiting plate butt in spouting the cap, the surface of current-limiting plate is equipped with a plurality of continuous external screw threads and butt in the internal surface that spouts the cap, the external screw thread becomes shallow gradually in the direction towards the current-limiting plate, the internal surface of external screw thread and spout cap mutually supports the runner that forms the water supply and flow through, the one end that the outlet pipe was kept away from to the spout cap is equipped with the jet orifice, be equipped with the restricted aperture that communicates current-limiting plate upper flow way and jet orifice on the.

By adopting the technical scheme, water flow entering the spray cap is mixed with gas and then enters the flow channel from one end of the flow limiting pipe far away from the flow limiting plate, and is sprayed out from the spray holes along the flow channel. When rivers are pushing away the current-limiting pointed end and get into the spray cap, the passageway broad that supplies rivers to pass through, because the gas-liquid flow everywhere of spray cap is the same, when the passageway of gas-liquid mixture from the broad gets into narrower runner, the speed that the gas-liquid mixture flows will improve, when the high-speed gas-liquid mixture is spout from the jet orifice, usually with tens meters of speed and the air at low speed of per second contact each other and produce the vibration, rub and make liquid breakage be tiny liquid droplet, the frictional force of air to liquid is greater than the internal force messenger liquid breakage stream or liquid film of liquid, thereby realize the atomizing of liquid.

In addition, the external screw thread plays the guide effect to the gas-liquid mixture body, avoids the gas-liquid mixture body collision each other to form the decay that the turbulent flow caused the velocity of flow. Because the external screw thread becomes shallow gradually for the runner narrows down gradually, longer spiral runner helps the gas-liquid mixture to accelerate better, thereby reaches better atomization effect.

Further setting: the flow limiting holes are uniformly and circumferentially arranged around the axis of the flow limiting plate, and the flow passages on the flow limiting pipe are respectively communicated with the flow limiting holes.

Through adopting above-mentioned technical scheme, restricted orifice and runner intercommunication each other for the gas-liquid mixture can pass the restricted flow board and wear out from the atomizing hole. Meanwhile, the flow of the gas-liquid mixture is further extruded by the flow limiting hole and the injection hole, so that the flow speed of the gas-liquid mixture is further increased, and a better atomization effect is achieved.

Further setting: the end face far away from the water outlet pipe in the spray cap is provided with a flow limiting groove, the atomization device further comprises an atomization plate which is installed in the flow limiting groove and abutted to the limiting plate, the side face, facing the limiting plate, of the atomization plate is provided with an atomization groove communicated with the flow limiting hole, and the bottom of the atomization groove is provided with an atomization hole communicated with the injection hole.

Through adopting above-mentioned technical scheme, the restriction recess plays limiting displacement to the atomization plate, and the gas-liquid mixture flows out the back from the restricted aperture, gets into the restriction recess corresponding with the restricted aperture, and the gas-liquid mixture further accelerates in the restriction recess to get into the jet orifice through the atomization hole, at last from the jet orifice blowout.

Further setting: the elastic piece is a pressure spring, the pressure spring and the current-limiting tip are both arranged in the current-limiting pipe, and two ends of the pressure spring are respectively connected with the current-limiting plate and the current-limiting tip.

Further setting: the flow limiting tip comprises a conical part and a cylindrical part integrally connected to the bottom of the conical part, the side wall of the cylindrical part is abutted to the inner wall of the flow limiting pipe, the cylindrical part slides in the flow limiting pipe under the action of external force and is connected with the flow limiting pipe in a sliding mode, and the flow limiting tip is abutted to the water inlet hole under the pressure of the pressure spring.

Through adopting above-mentioned technical scheme, the cross-section of toper portion perpendicular to its axis is circular for toper portion can support tightly and seal the inlet opening under the effect of pressure spring, thereby makes rivers can't get into from the inlet opening and spout the cap. The cylindrical part slides in the flow limiting pipe, and the flow limiting pipe plays a role in guiding the flow limiting tip, so that the flow limiting part cannot deviate towards two sides when pushed away by water flow.

In addition, the conical part plays a guiding role in water flow, so that the water flow can uniformly flow around when impacting on the cylindrical part and is mixed with gas to form a gas-liquid mixture, the gas-liquid mixture can smoothly enter the flow channel, the turbulent flow formed in the spray cap is avoided, and the flow speed of the gas-liquid mixture is ensured. The turbulent flows move irregularly in the spray cap and collide with each other, so that the kinetic energy of the gas-liquid mixture is converted into heat energy, and the flow velocity is reduced.

Further setting: the atomizing hole is arranged on the atomizing plate in a penetrating mode along the axis of the atomizing plate, and the atomizing grooves are radially arranged on the atomizing plate.

Through adopting above-mentioned technical scheme, gas-liquid mixture has longer acceleration path on the atomizing board for gas-liquid mixture can possess higher velocity of flow when getting into the atomizing hole, thereby reaches better atomization effect.

In addition, the atomizing plate is worn to locate along the axis of atomizing plate in the atomizing hole for the gas-liquid mixture produces even effort to the atomizing plate in each atomizing recess, avoids the atomizing plate to take place to rotate because the atress is inhomogeneous, leads to partial gas-liquid mixture's kinetic energy to turn into the kinetic energy of atomizing plate, causes the loss of energy, thereby avoids the velocity of flow of gas-liquid mixture to take place to descend.

Further setting: the water distribution pipe is provided with a water pump, and the water pump controls the opening quantity of the nozzles by adjusting water pressure.

By adopting the technical scheme, people can change the water pressure in the water distribution pipe by adjusting the water pump according to needs, thereby controlling the opening quantity of the nozzles, and being very convenient.

Further setting: the humidifying chamber is also provided with an air distribution pipe for inputting the gas to be humidified and an air outlet for outputting the humidified gas outwards.

By adopting the technical scheme, the gas to be humidified is mixed with the gas-liquid mixture sprayed out by the spray head, so that the humidity of the gas to be humidified rises and is output to the humidification chamber through the gas outlet.

Further setting: the humidifying chamber is also internally provided with a spoiler, the cross section of the spoiler is W-shaped, the gas outlet and the gas inlet pipe are respectively positioned at two sides of the spoiler, the water distribution pipe, the gas distribution pipe and the gas inlet pipe are positioned at the same side of the spoiler, and the spoiler is provided with a plurality of air vents for gas to pass through.

By adopting the technical scheme, a turbulent flow space is formed between the turbulent flow plate and the spray head. In the turbulent flow space, the high-speed aerial fog sprayed by the spray head can form turbulent flow with the gas to be humidified flowing out of the air inlet pipe and be fully mixed, the humidifying effect of the gas is improved, the humidified gas reaches the other side of the turbulent flow plate through the vent hole and is output to the humidifying chamber through the air outlet.

To sum up, the utility model discloses following beneficial effect has: the spray head can effectively mix gas and liquid and accelerate the spraying, and has good atomization effect; the opening number of the spray caps is controlled, so that the humidity of the humidification chamber is correspondingly controlled, the arrangement of an electric valve is avoided, and the electric energy is saved; the spoiler is arranged to uniformly mix the mist and the air in the humidification chamber, so that the humidification effect is effectively improved; simple structure and convenient maintenance.

Drawings

FIG. 1 is a sectional view of a water washing and humidifying apparatus of an air conditioning box in the present embodiment;

FIG. 2 is a sectional view of the humidifying chamber in the present embodiment;

FIG. 3 is an exploded view of the head of the present embodiment;

FIG. 4 is a sectional view of the head in the open state in the present embodiment;

fig. 5 is a front view of the atomization plate in this embodiment.

In the figure, the position of the upper end of the main shaft,

1. a humidification chamber; 11. a water distribution pipe; 12. an air inlet pipe; 13. an air distribution pipe; 14. an air outlet;

2. an air conditioning cabinet; 3. a spray head;

31. a water outlet pipe; 311. a water inlet hole;

32. spraying a cap; 321. an air inlet; 322. a limiting groove; 323. an injection hole;

4. a valve; 41. a current limiting tip; 411. a tapered portion; 412. a cylindrical portion; 42. an elastic member; 420. a pressure spring;

5. an atomizing device; 51. a restrictor plate; 511. a flow restriction orifice; 52. an atomization plate; 521. an atomization groove; 522. an atomization orifice; 53. a current limiting pipe; 531. an external thread; 532. a flow channel;

6. a spoiler; 61. and (4) a vent hole.

Detailed Description

A washing and humidifying device of an air conditioning cabinet, referring to figure 1, comprises a humidifying chamber 1 arranged in an air conditioning cabinet 2, referring to figure 2, a water distribution pipe 11 for conveying clean water, an air inlet pipe 12 arranged side by side with the water distribution pipe 11 and used for conveying high-pressure clean gas, an air distribution pipe 13 for inputting gas to be humidified and an air outlet 14 for outputting the humidified gas outwards are arranged in the humidifying chamber 1, and a plurality of nozzles 3 for mixing and atomizing the clean water and the clean air to be sprayed are arranged on the water distribution pipe 11 at intervals; the humidifying chamber 1 is also internally provided with a spoiler 6, the water distribution pipe 11, the air distribution pipe 13 and the air inlet pipe 12 are positioned at the same side of the spoiler 6, the air outlet 14 and the air inlet pipe 12 are respectively positioned at the different sides of the spoiler 6, and the spray sprayed by the water distribution pipe 11 and the air are uniformly mixed under the action of the spoiler 6 and then pass through the spoiler 6 to be discharged from the air outlet 14.

Referring to fig. 2, the nozzle 3 includes a water outlet pipe 31 installed on the water distribution pipe 11 and a nozzle cap 32 installed on the water outlet pipe 31, the water outlet pipe 31 is a planar tee, two ends of the water outlet pipe 31 are respectively and fixedly communicated with the water distribution pipe 11, and the remaining end is in threaded connection with the nozzle cap 32. Referring to fig. 3, a water inlet hole 311 is formed inside the water outlet pipe 31, the diameter of the water inlet hole 311 is smaller than the diameter of the water outlet pipe 31, and the water inlet hole 311 communicates the spray cap 32 and the water distribution pipe 11. Referring to fig. 4, the side wall of the spray cap 32 is connected to the air inlet pipe 12, and an air inlet hole 321 for communicating the inside of the spray cap 32 and the air inlet pipe 12 is further formed through the side wall of the spray cap 32.

Referring to fig. 3 and 4, a valve 4 for controlling the opening and closing of the water inlet 311 and an atomization device 5 for mixing and atomizing the water and the air in the spray cap 32 are arranged in the spray cap 32. The atomization device 5 includes a flow restriction plate 51, an atomization plate 52, and a flow restriction pipe 53 integrally connected to the flow restriction plate 51, and the flow restriction plate 51 is disk-shaped and is disposed coaxially with the flow restriction pipe 53. The valve 4 is installed in the flow-limiting pipe 53, and includes an elastic member 42 and a flow-limiting tip 41 which is tightly pressed against the water inlet 311 by the elastic member 42, in this embodiment, the elastic member 42 is a compression spring 420, and two ends of the compression spring 420 are respectively connected with the flow-limiting plate 51 and the flow-limiting tip 41. The flow-limiting tip 41 comprises a conical part 411 and a cylindrical part 412 integrally connected to the bottom of the conical part 411, the side wall of the cylindrical part 412 is abutted against the inner wall of the flow-limiting pipe 53, the cylindrical part 412 slides in the flow-limiting pipe 53 under the action of external force and is connected with the flow-limiting pipe 53 in a sliding manner, and the flow-limiting tip 41 is abutted against the water inlet hole 311 under the pressure of the pressure spring 420. When the pressure of the water flow in the water distribution pipe 11 on the flow limiting tip 41 is smaller than the pressure of the pressure spring 420 on the flow limiting tip 41, the flow limiting tip 41 abuts against the water inlet hole 311 to seal the water inlet hole 311, so that the water flow cannot enter the spray cap 32 through the water inlet hole 311, the spray cap 32 is in a closed state, and the gas flowing into the spray cap 32 from the gas inlet hole 321 is directly discharged from the spray cap 32 without being mixed with the water flow. When the pressure of the water flow in the water distribution pipe 11 on the flow-limiting tip 41 is greater than the pressure of the pressure spring 420 on the flow-limiting tip 41, the water flow pushes the flow-limiting tip 41 away into the spray cap 32 and mixes with the high-pressure cleaning gas flowing in the air inlet hole 321 in the spray cap 32.

Meanwhile, referring to fig. 4, the pressure of the compressed spring 420 in each spray cap 32 on the water distribution pipe 11 to the flow limiting tip 41 is different, and in this embodiment, the elasticity of the compressed spring 420 in each spray cap 32 increases gradually one by one along the water flow direction of the water distribution pipe 11. The threshold of the opening water pressure of each cap 32 is therefore different, and when the water pressure is high more flow restricting tips 41 in the caps 32 are pushed away by the water flow, mixed with the gas and sprayed after treatment by the atomizing device 5. When the water pressure is low, more flow-limiting tips 41 in the spray cap 32 abut against the water inlet holes 311, the water flow cannot enter the spray cap 32, and the atomization device 5 in the spray cap 32 stops working. The water distributor 11 is further provided with a water pump for regulating the water pressure in the water distributor 11, and the water pump controls the opening amount of the spray caps 32 by controlling the water pressure, so as to control the humidity of the humidification chamber 1 accordingly (the humidification chamber and the water pump are not shown in fig. 4).

Referring to fig. 3 and 4, the exterior surface of the restrictor 53 is provided with a plurality of continuous external threads 531 and abuts against the interior surface of the cap 32, the external threads 531 become gradually shallower in a direction toward the restrictor plate 51, the external threads 531 and the interior surface of the cap 32 cooperate with each other to form flow channels 532 through which water flows, and the number of the flow channels 532 is four in this embodiment. When water enters the spray cap 32 by pushing the flow limiting tip 41 open, the channel through which the water flows is wider, and since the gas-liquid flow rate at each position of the spray cap 32 is the same, the flow speed of the gas-liquid mixture will gradually increase when the gas-liquid mixture enters the narrower flow channel 532 from the wider channel.

Referring to fig. 3 and 4, the current-limiting plate 51 abuts against an end surface of the spray cap 32 far away from the water outlet pipe 31, and a limiting groove 322 is further disposed in the end surface, wherein the limiting groove 322 is a circular groove, and the cross-sectional diameter of the limiting groove is smaller than the diameter of the current-limiting plate 51. The atomization plate 52 is installed in the limit groove 322, and two end faces of the atomization plate respectively abut against the flow restriction plate 51 and the groove bottom of the limit groove 322. The restrictor plate 51 is provided with restrictor holes 511 communicating with the flow passage 532, and the restrictor holes 511 are arranged circumferentially and uniformly around the axis of the restrictor plate 51. The side surface of the atomizing plate 52 facing the limiting plate is provided with atomizing grooves 521 communicated with the flow limiting holes 511, and the atomizing grooves 521 are radially arranged on the atomizing plate 52. The gas-liquid mixture has a longer acceleration path on the atomization grooves 521 so that the gas-liquid mixture can have a higher flow velocity when entering the atomization holes 522 than in the flow passage 532. Referring to fig. 5, an atomization hole 522 is formed in the bottom of the atomization groove 521, the atomization hole 522 penetrates through the atomization plate 52 along the axis of the atomization plate 52, referring to fig. 4, an injection hole 323 communicated with the atomization hole 522 is formed in one end, away from the water outlet pipe 31, of the injection cap 32, the injection hole 323 and the atomization hole 522 are both circular holes and are coaxially arranged, and the aperture of the atomization hole 522 is larger than that of the injection hole 323. The plurality of atomization grooves 521 meet together, so that the passage through which the gas-liquid mixture passes is further narrowed, and the flow velocity is further increased. When a high-speed gas-liquid mixture is sprayed out of the spraying holes 323, highly compressed gas rapidly expands and explodes liquid beads, liquid generally contacts with low-speed air at a speed of tens of meters per second to generate vibration and rub to further break the liquid into fine liquid drops, and the friction acting force of the air on the liquid is greater than the internal force of the liquid to break the liquid into streams or liquid films, so that the atomization of the liquid is realized, and the humidification effect is achieved after the liquid and the air are mixed.

Referring to fig. 2, the spoiler 6 has a W-shaped cross section and is provided with a plurality of vent holes 61 through which gas passes. A turbulent flow space is formed between the turbulent flow plate 6 and the spray head 3. In the turbulent flow space, the high-speed gas mist sprayed by the spray head 3 can form turbulent flow with the gas to be humidified flowing out of the air inlet pipe 12 and be fully mixed, so that the humidifying effect of the gas is improved, and the humidified gas reaches the other side of the turbulent flow plate 6 through the vent holes 61 and is output out of the humidifying chamber 1 through the air outlet 14.

The above-mentioned embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications of the present embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the present invention.

Claims (10)

1. A washing and humidifying device of an air conditioning cabinet comprises a humidifying chamber (1) arranged in the air conditioning cabinet (2), a water distribution pipe (11) used for conveying clean water is arranged in the humidifying chamber (1), a plurality of spray heads (3) are arranged on the water distribution pipe (11) at intervals,

the high-pressure clean gas spraying device is characterized in that air inlet pipes (12) used for conveying high-pressure clean gas are arranged in parallel in the water distribution pipe (11), the spray head (3) comprises a water outlet pipe (31) arranged on the water distribution pipe (11) and a spraying cap (32) arranged on the water outlet pipe (31), a water inlet hole (311) communicated with the water distribution pipe (11) and the spraying cap (32) is arranged in the water outlet pipe (31), an air inlet hole (321) communicated with the air inlet pipe (12) is formed in the side wall of the spraying cap (32), a valve (4) and an atomizing device (5) used for mixing and atomizing water and gas in the spraying cap (32) are arranged in the spraying cap (32), the valve (4) comprises an elastic piece (42) and a current limiting tip (41) abutted against the water inlet hole (311) by the elastic piece (42), and when the pressure of the elastic piece (42) on the current limiting tip (41) is smaller than the pressure of the water on the current limiting tip (41), the water pushes away the current limiting tip (41 A chemical conversion device (5); the pressure of the elastic piece (42) in each spray cap (32) on the flow-limiting tip (41) is different, and the water pressure in the water distribution pipe (11) is increased or decreased to control the water flow to enter more or less spray caps (32) to open the atomization device (5).

2. A water washing and humidifying apparatus of an air conditioning box as claimed in claim 1, the atomization device (5) comprises a flow restriction plate (51) and a flow restriction pipe (53) arranged on the flow restriction plate (51), the flow limiting plate (51) is abutted against the end surface far away from the water outlet pipe (31) in the spray cap (32), the outer surface of the flow limiting pipe (53) is provided with a plurality of continuous external threads (531) and is abutted against the inner surface of the spray cap (32), the external thread (531) becomes gradually shallower in a direction toward the restrictor plate (51), the external thread (531) is matched with the inner surface of the spray cap (32) to form a flow passage (532) for water flow, one end of the spray cap (32) far away from the water outlet pipe (31) is provided with a spray hole (323), the flow limiting plate (51) is provided with a flow limiting hole (511) which is communicated with an upper flow channel (532) of the flow limiting pipe (53) and the injection hole (323).

3. A water washing and humidifying device of an air conditioning box as claimed in claim 2, wherein the flow restriction holes (511) are arranged in a uniform circumference around the axis of the flow restriction plate (51), and the flow passages (532) of the flow restriction pipe (53) are respectively communicated with the flow restriction holes (511).

4. The water washing and humidifying equipment of the air conditioning box according to claim 1, wherein a flow-limiting groove is arranged on the end surface of the spray cap (32) far away from the water outlet pipe (31), the atomizing device (5) further comprises an atomizing plate (52) which is arranged in the flow-limiting groove and abutted to the limiting plate, an atomizing groove (521) communicated with the flow-limiting hole (511) is arranged on the side surface of the atomizing plate (52) facing the limiting plate, and an atomizing hole (522) communicated with the spray hole (323) is arranged at the bottom of the atomizing groove (521).

5. A water washing and humidifying device of an air conditioning box as claimed in claim 3, wherein said elastic member (42) is a compression spring (420), said compression spring (420) and said flow restriction tip (41) are both installed in the flow restriction pipe (53), and both ends of said compression spring (420) are respectively connected with the flow restriction plate (51) and the flow restriction tip (41).

6. A water washing and humidifying device of an air conditioning box as claimed in claim 4, wherein the flow restriction tip (41) comprises a conical part (411) and a cylindrical part (412) integrally connected to the bottom of the conical part (411), the side wall of the cylindrical part (412) is abutted with the inner wall of the flow restriction pipe (53), the cylindrical part (412) slides in the flow restriction pipe (53) under the action of external force and is connected with the flow restriction pipe (53) in a sliding way, and the flow restriction tip (41) is abutted against the water inlet hole (311) under the pressure of the pressure spring (420).

7. A water washing and humidifying device of an air conditioning box as claimed in claim 4, wherein the atomizing holes (522) are arranged through the atomizing plate (52) along the axis of the atomizing plate (52), and the atomizing grooves (521) are arranged on the atomizing plate (52) in a radial shape.

8. A water washing and humidifying device for an air conditioning box according to claim 1, wherein a water pump is provided on the water distributor (11) and controls the opening amount of the spray head (3) by adjusting water pressure.

9. A water washing and humidifying device of an air conditioning box as claimed in claim 1, wherein a gas distribution pipe (13) for inputting the gas to be humidified and a gas outlet (14) for outputting the humidified gas are further provided in the humidifying chamber (1).

10. A water washing and humidifying device for an air conditioning box according to claim 9, wherein a spoiler (6) is further provided in the humidifying chamber (1), the cross section of the spoiler (6) is W-shaped, the air outlet (14) and the air inlet (12) are respectively provided at two sides of the spoiler (6), the water distribution pipe (11), the air distribution pipe (13) and the air inlet (12) are provided at the same side of the spoiler (6), and the spoiler (6) is provided with a plurality of air vents (61) for passing air.

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