JPH0364779B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device used for humidifying and cleaning air in a textile factory (hereinafter referred to as an "air washer"). The purpose of the present invention is to provide an air washer that automatically discharges the air as needed.

Figure 1 shows the structure of an air washer conventionally used in textile factories. 1 is the housing of the device;
2 is an air suction port, 3 is a water spray chamber, 4...4 is a water spray nozzle provided at the upper part of the water spray chamber,
5 is an eliminator that removes water droplets from passing air; 6 is a blower; 7 is an air outlet; 8 is a water receiver provided at the bottom of the water spray chamber; 9 is a water receiver 8 that directs cleaning water to the nozzle 4. This is a water circulation pump that circulates and supplies water.

The air flowing into the device from the air suction port 2 by the action of the blower 6 is humidified in the atmosphere of water droplets sprayed from the nozzle 4 while passing through the water spray chamber 3, and the air floating in the air is humidified. Cotton and dust are caught and washed by the water droplets. At this time,
Water droplets blown up with the air are removed by the eliminator 5, and the humidified and cleaned air is sent out from the air outlet 7.

The water droplets in the water spray chamber 3 fall into the water receiver 8 and are circulated and supplied to the nozzle 4 again by the pump 9. This will contain fly fluff and dust, and since these fluff will adhere to the filter attached to the pump 9, this filter will need to be cleaned frequently. Furthermore, the eliminator 5 must be cleaned periodically because fluff that is not captured by water droplets in the water spray chamber accumulates on the lower end of the eliminator 5 and causes clogging.

Furthermore, in various air cleaning devices, as shown by the imaginary line in FIG. 1, it is common practice to provide a filter 10 at the air suction port 2 and use the filter 10 to trap dust and the like in the intake air. However, when installing such a filter 10 in an air washer, it is common sense to provide an eaves 11 or the like to prevent water droplets in the water spray chamber from falling on the filter 10.
The adhesion of fluff, etc. to the filter 10 is excessive, and the filter 10 must be cleaned every 1 to 2 hours, which is extremely troublesome.

This invention was made in order to solve the problems of the conventional air washer as described above.A filter is provided between the air suction port of the air washer and the water spray chamber to catch fluff, etc. The trouble of having to frequently clean the filter and eliminator by constantly cleaning the filter with a stream of water and automatically discharging fluff, etc. removed from the filter from the device at a timely manner. It is an object of the present invention to provide an air washer which is easy to maintain and manage, and which does not cause a decrease in efficiency due to the adhesion of fluff or the like.

Explaining with the reference numerals of the illustrated embodiments, the air washer of the present invention is a device that humidifies and cleans the air by passing the air sucked from the air suction port 12 through a water spray chamber 13 equipped with a water spray nozzle 21. A filter 14 is provided between the air suction port 12 and the water spray chamber 13 so that water droplets sprayed from the water spray nozzle 21 are sprayed onto the filter and the sprayed water droplets flow down through the filter. The water receptacle 16 provided at the bottom of the device housing 15 is installed vertically or diagonally in an up-down direction with the surface on the water spray chamber side facing upward. It is divided into a water receiver 16a and a water receiver 16b on the air suction port side, and the water receivers 16, 16b communicate with each other via the lower side 14a of the filter 14 or a filter provided separately from this. Water receiver 16 on the spray chamber side
The fresh water supply pipe 17 and the suction pipe 19 of the circulation pump 18 that supplies water to the water spray nozzle 21 are connected to a, and the water receptacle 16b on the air suction side is provided with a water overflow port 20. This is a characteristic feature.

The filter 14 is installed so that water droplets sprayed from the nozzles 21...21 are scattered over the entire surface thereof. In the illustrated embodiment, the filter 14
is installed obliquely from above the air suction port 12 toward the water spray chamber, and the water sprayed on the filter 14 passes through the mesh of the filter 14 and flows down. Water receiver 16 provided at the bottom of the housing 15
a, 16b are the lower side portions 14 of this filter 14.
The water that has passed through the mesh of the filter 14 flows down into the water receiver 16b on the air suction port side. The lower side 14a of the filter 14 is immersed in water between the water receivers 16a and 16b, and the water receivers 16a and 16b are communicated through the mesh of the lower side 14a of the filter 14. In the illustrated embodiment, the filter 14 and the water receivers 16a, 16b are configured as described above, but the filter 14 may be installed vertically as long as the spray water droplets are sufficiently dispersed. This is because even if the filter 14 is vertical, a portion of the water sprayed onto it passes through the mesh and flows down to the water receiver 16b on the air suction port side. Further, the filter installed between the water receivers 16a and 16b does not necessarily have to be integrated with the filter 14. However, it is preferable to integrate them into one piece because the structure is simpler and it is also preferable in terms of maintenance and inspection of the device. Regardless of which structure is adopted, the water receivers 16a and 16b are connected to the filter 1.
The water flowing down to the air suction port side of No. 4 flows into the water receiver 16b.
The lower side 14a of the filter 14 is arranged so that the water flowing down to the water spray chamber side flows into the water receivers 16a.
It must be divided into boundaries.

A fresh water supply pipe 17 connected to the water receiver 16a on the water spray chamber side is for replenishing the cleaning water circulated within the air washer, and in the illustrated embodiment, a solenoid valve 22 is connected to this pipe 17. It is opened and closed by a manual switch 23 or a level detection float switch 24 provided on the water receiver 16a. The solenoid valve 22 is normally closed, and is closed when the manual switch 23 is operated or when the liquid level in the water receiver 16a drops and the float 25 descends as shown by the imaginary line in the figure. , it is in an open state to supply fresh water to the water receiver 16a.

The structure of the pipe 26 that communicates the water circulation pump 18 and the nozzle 21 is the same as that of a conventional device, but a thicker one is used to ensure the amount of water during cleaning, which will be described later. It is better. The overflow port 20 provided in the water receiver 16b on the side of the air suction port 12 is connected to the water receiver 1 during steady operation of the device.
6a and 16b, and the overflowing water from this overflow port 20 is discharged through a drain port 27. Eliminator 28 and blower 2
The structure and arrangement of the air washer 9 and the air outlet 30 are not particularly different from those of conventional air washers.

In the above configuration, when the air flowing in from the air suction port 12 passes through the filter 14, the fluff and dust contained therein are captured, and these fluff and dust pass through the mesh of the filter 14. The water is then washed away by the water flow flowing down into the water receiver 16b and enters the water receiver 16b. The water that has flowed into the water receiver 16b is filtered by the lower side portion 14a of the filter 14 and flows into the water receiver 16a. On the other hand, the air that has passed through the filter 14 is humidified by the water droplets in the water spray chamber in the same manner as in the conventional device, and furthermore, the fine dust that was not captured by the filter 14 is captured by the water droplets. The air is removed by the eliminator 28 and then blown out from the air outlet 30 by the blower 29. The water droplets in the water spray chamber 13 are
a, and together with the water flowing in from the water receiver 16b, the water is sent to the nozzles 21...21 by the pump 18 and used for circulation.

The operation of the air washer is stopped every few hours by, for example, a timer, but when the operation of the air washer is stopped, the water in the pipe 26 flows back into the water receiver 16a on the water spray chamber side due to the head. As a result, the water level in the water receiver 16a rises, and the water in the water receiver 16a flows through the lower side 14a of the filter 14 to the water receiver 16b.
The fluff and dust adhering to the lower side part 14a of the filter 4 are separated from the mesh of the filter, and together with the water in the water receiver 16b, these are flushed into the overflow port 20 and discharged. At this time, in order to ensure a sufficient amount of overflowing water to discharge fluff and the like floating in the water in the water receiver 16b, it is preferable to increase the thickness of the pipe 26 described above to some extent. Furthermore, if necessary, the electromagnetic valve 22 may be opened for a predetermined period of time when the apparatus is stopped to ensure the amount of water necessary for cleaning the lower side 14a of the filter 14 and the water receiver 16b. As a result, the filter 14 and the water receiver 16
The fluff, etc. in b will be removed and discharged.

When the air washer is restarted from this state, the water in the water receiver 16a is caused to flow into the pipe 26 again by the pump 18, and the water level in the water receiver 16a is lowered. Then, the float 25 of the float switch 24 is lowered, the solenoid valve 22 is opened, and the water receiver 16a is kept open until the water level in the water receiver 16a reaches the specified water level.
Fresh water is supplied to a.

By repeating the above operations, the air washer of the present invention automatically removes fluff and dust caught in the filter 14 and discharges it to the outside of the device, making cleaning work of the filter 14 easier. It becomes completely unnecessary. Furthermore, since the dust trapped in the water droplets in the water spray chamber is fine and small in amount after passing through the filter 14, there is almost no need to clean the filter attached to the pump 18, and the eliminator 28 Since there is no longer any cotton attached, maintenance and inspection work is not required, and the filter 14 is constantly being washed with a stream of water while operating, and as a result, the equipment is shut down from fluff, etc. that have flowed down into the water receiver 16b. Since the waste water is discharged outside the device, the device is always maintained in a clean state, and the device can be operated efficiently in perfect condition for a long period of time.

[Brief explanation of drawings]

FIG. 1 is a central vertical cross-sectional view showing the structure of a conventional air washer, and FIG. 2 is a central vertical cross-sectional view of an air washer according to the present invention. In the figure, 12 is an air suction port, 13 is a water spray chamber, 1
4 is a filter, 14a is its lower side, 15 is a housing, 16 is a water receiver, 16a is a water receiver on the water spray chamber side, 1
6b is a water receiver on the air suction side, 17 is a fresh water supply pipe, 18 is a water circulation pump, 19 is a suction pipe, 2
0 is an overflow port, and 21 is a nozzle.

Claims (1)

[Scope of Claims] 1. In an air humidification and cleaning device that humidifies and cleans the air by passing the air sucked in from the air suction port 12 through a water spray chamber 13 equipped with a water spray nozzle 21, the air suction port 12 and A filter 14 is arranged between the water spray chamber 13 and the water spray chamber 13 vertically so that the water droplets sprayed from the water spray nozzle 21 are sprayed onto the filter 14 and the sprayed water droplets pass through the filter 14 and flow down. It is provided in an oblique vertical direction with the surface on the water spray chamber 13 side facing upward, and a water receiver 16 provided at the bottom of the device housing 15 connects the water spray chamber side 16a and air with the lower side of the filter 14 as a boundary. The water receivers 16a and 16b are connected to each other via a filter 14a, and a fresh water supply pipe 1 is connected to the water receiver 16a on the water spray chamber side.
7 and the suction pipe 19 of the circulation pump 18 that supplies water to the water spray nozzle 21 are connected, and the water receiver 16b on the air suction side is provided with an overflow port 20. Humidifying cleaning device.