JPH0440205A - Circulating water purifying apparatus - Google Patents

Abstract

PURPOSE:To enable the quick discharge of foreign matters from a filter to the outside of an apparatus without requiring hands during the operation of the apparatus by installing a jet pump discharging circulating water along with cleaning materials cleaning the filter and foreign matters. CONSTITUTION:A storing reservoir 11 recovers circulating water through a filter 16 and a pump 12 causes the storing reservoir 11 to supply circulating water. Meanwhile, at a cleaning material 13 foreign matters collected by the filter 16 are washed away with circulating water from the pump 12. Furthermore, circulating water containing foreign matters is stored in a waste water tank 14 and then discharged therefrom by a jet pump 15 connected to the pump 12. As the result, foreign matters from the filter can quickly be discharged out of the apparatus without requiring hands and during the operation of the apparatus.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a circulating water purification device that is attached to, for example, a humidifier or a cooling tower, and is used to collect and remove foreign matter from circulating water.

Background Art Humidifiers, cooling towers, and the like are known in which circulating water is brought into direct contact with air.

For example, humidifiers are evaporative. This device includes a water nozzle that sprays circulating water in a shower, a breathable water supply filter that impregnates the circulating water, and a blower fan.The air sucked into the humidifier by the blower fan is The water is humidified as it passes through the water filter, and is then discharged to the outside through the air outlet.

At this time, foreign matter in the air that cannot pass through the water filter is accumulated, but this foreign matter is washed away by the circulating water from the water nozzle and collected by the filter below. Note that the clean circulating water from which foreign substances have been removed by the filter is collected in a water storage tank, and is again sprayed with water from the water spray nozzle by the pump, and thereafter, the collection and water spraying are repeated in the same manner.

There are various types of foreign matter, but for example, fluff is a common problem in textile factories. A considerable amount of fly fluff is generated depending on the operating hours of the factory, and the amount collected by the filter also increases. Therefore, in order to continue to operate the humidifier in good condition, the filter must be frequently washed to remove fluff. This removal work is completed by removing the filter, taking it out of the humidifier, washing it out with washing water, etc., and then reattaching the filter to the humidifier.

It should be noted that removal of such foreign matter is not limited to humidifiers, but also applies to cooling towers, and it is also necessary to perform this work as appropriate for general equipment that brings circulating water into direct contact with air. .

Problems to be Solved by the Invention When using the above-mentioned prior art, there is a problem in that the work of removing foreign substances, including the installation and removal of filters, must be done manually, and the entire work is complicated and takes a lot of time. Another problem was that during this work, the operation of devices such as humidifiers had to be temporarily stopped.

Therefore, in view of the actual state of the prior art, an object of the present invention is to provide a cleaning member for cleaning a filter and a jet pump for discharging circulating water together with foreign substances, thereby eliminating the need for human intervention and, moreover, while the device is in operation. Another object of the present invention is to provide a circulating water purification device that can promptly discharge foreign matter from the filter to the outside of the device.

Means for Solving the Problems The configuration of the present invention to achieve the object includes a water storage tank that collects circulating water through a filter, a pump that sends the circulating water from the water tank, and a water collected by the filter. The gist thereof is to include a cleaning member that washes away foreign matter with circulating water from a pump, a drainage tank that stores circulating water containing foreign matter, and a jet pump that is connected to the pump and discharges the circulating water from the drainage tank. .

Note that the cleaning member and the jet pump may be connected to the pump via a solenoid valve.

Function: With this configuration, clean circulating water can be collected in the water storage tank, while foreign matter in the circulating water can be discharged from the drainage tank to the outside by the jet pump.

That is, since the circulating water is collected into the water tank via the filter, foreign matter in the circulating water is first collected by the filter, and clean circulating water is collected into the water tank.

On the other hand, foreign matter collected in the filter is washed away by the circulating water from the cleaning member and stored in the drain tank together with the circulating water. It can also be discharged to the outside. In addition, foreign matter is removed via the water pump.
The circulating water in the water tank is sent to the cleaning member and the jet pump to be discharged to the outside. At this time, there is no need to remove the filter, so there is no need to stop the operation of a device such as a humidifier.

When the cleaning member and jet pump are connected to the pump via a solenoid valve, the water supply from the pump to both can be automatically controlled. By combining with the above, foreign substances can be automatically removed according to arbitrary setting conditions.

Example Examples will be described below with reference to the drawings.

Circulating water purification device (hereinafter simply referred to as purification device) 10
comprises a water storage tank 11, a pump 12, a cleaning member 13, a drainage tank 14, and a shed pump 15 (first
), the whole can be incorporated into the lower half of the evaporative humidifier 20, for example.

The water tank 11 is arranged at the bottom of the humidifier 20, and includes an upper inclined plate 11a and a vertical plate 1 continuous to the lower end of the inclined plate 11a.
1b and a partition plate 11C standing upright on the bottom surface. Between the lower edge of the vertical plate 11b and the upper edge of the partition plate 11C is an opening lid in which a filter 16 is attached.
is formed (FIG. 2), and the water tank 11 is opened at this opening li.
It opens upward through d.

The filter 16 is detachably attached to the opening lid, and is formed by a frame member 16a and a mesh 16b.

A baffle plate 17 is attached above the filter 16 (FIG. 1). The upper end of the baffle plate 17 is higher than the lower end of the inclined plate 11a, and a gap is provided between the lower end of the baffle plate 17 and the filter 16.

The pump 12 is disposed within the water tank 11, and is connected to a water pipe 12a.
The circulating water in the water tank 11 can be fed through the water tank 11 . Note that the circulating water in the water tank 11 is not only recovered through the filter 16 but also replenished through the water supply pipe T. That is, the water tank 11 is connected to a water supply pipe (not shown) at the bottom, and the water supply pipe T is connected to the water tank 11.
A float valve TI is installed to open and close the water supply port of the water supply pipe T depending on the water level inside.

The cleaning member 13 is formed of a tubular member with both ends closed, and is disposed below and along the filter 16 (FIGS. 1 and 2). The pipe wall of the cleaning member 13 has upwardly directed injection holes 13a113a... and a drainage tank 14.
A large number of injection holes 13b, 13b, . . . facing obliquely upward are formed on the side.

Note that the distance d between the cleaning member 13 and the filter 16 is such that when circulating water is injected from the former toward the latter, the distance d between the cleaning member 13 and the filter 16 is
The setting shall be such that the foreign matter on the surface of 6 can be sufficiently washed away. The cleaning member 13 includes a branch pipe 12b and a solenoid valve 1.
8. Connected to the pump 12 via the water pipe 12a.

Like the water tank 11, the drain tank 14 is arranged at the bottom of the humidifier 20, and is adjacent to the water tank 11 via the partition plate 11C (FIG. 1).

The jet pump 15 is formed by combining a main body 15a and a nozzle 15b. The main body 15a is formed of a bent pipe, and one end thereof is opened from above near the bottom of the drain tank 14, and the other end is located outside the humidifier 20 at a position lower than the bottom of the drain tank 14. It's open. Further, in the intermediate horizontal portion, the tip of the nozzle 15b penetrates in the horizontal direction. The nozzle 15b is connected to the branch pipe 12
connected to b.

The humidifier 20 equipped with the purification device 10 has a water supply filter 22, a water sprinkler pipe 23,
Blower fan 2 with eliminator 24 and hood 26.26
Further, on the front side of the main body 21, an air intake port 21a and a ventilation port 21b are formed at positions corresponding to the lower part of the water supply filter 22 and the ventilation fan 25, respectively.

The water supply filter 22 has air permeability and can be impregnated with circulating water.
3a..., and is connected to the pump 12 via a water pipe 12a. Further, the eliminator 24 removes excess water droplets from the air humidified by the water supply filter 22.

Now, let us consider the case where the humidifier 20 is installed and operated in a textile factory where fluff tends to occur. It should be noted that fluff is generated almost in proportion to the operating time of the factory, and must be appropriately removed as a harmful foreign substance.

When the solenoid valve 18 is closed, the pump 12 is started, and the blower fan 25 is operated, the water supply filter 22 can contain circulating water due to the water sprinkling from the sprinkler pipe 23, so that the water is removed from the air intake port 21a. The sucked air is
After being humidified when passing through the water supply filter 22 and having excess water droplets removed by the eliminator 24, the hood 2
6.26, and is sent to the outside through the ventilation fan 25 through the ventilation opening 21b. At this time, most of the fluff contained in the sucked air is collected by the water supply filter 22 and adheres to the water supply filter 22.

This fluff is washed downward by circulating water from the water spray nozzles 23a, 23a..., flows down along the inclined plate 11a, collides with the baffle plate 17, and is collected on the filter 16 below. . Therefore, only clean circulating water from which fluff has been removed by the filter 16 can be collected into the water storage tank 11. Note that at this time, a part of the circulating water containing fluff may be directly stored in the drainage tank 14.

When a predetermined period of time has elapsed from the start of operation of the humidifier 20, the solenoid valve 18 is opened by a timer (not shown).

At this time, part of the circulating water from the pump 12 is transferred to the water pipe 1
Cleaning member 1 via 2a5 solenoid valve 18 and branch pipe 12b
3 and jet pump 15. Cleaning member 13
Since the supplied circulating water can be injected from below the filter 16, the fly fluff collected on the filter 16 is washed away by the injected circulating water and is stored in the drain tank 14 together with the circulating water. be done.

On the other hand, the jet pump 15 sucks the circulating water in the drain tank 14 from one end of the main body 15a and externalizes it from the other end because the static pressure in the horizontal part decreases due to the circulating water jetted from the tip of the nozzle 15b. At this time, fluff in the circulating water can also be removed to the outside at the same time.

In the purification device 10 according to the present invention, the pump 12 for water supply can also be used as that of the humidifier 20, and all other members except the pump 12 can be constructed with no moving parts. I can do it. Therefore, there is no risk of fluff clogging the movable parts (the overall structure is simple, and high operational reliability can be expected over a long period of time).

In another embodiment of the jet pump 15, another nozzle 15c can be additionally attached to the main body 15a (FIG. 3). The nozzle 15c is connected to the branch pipe 12b so as to operate simultaneously with the nozzle 15b, and its tip is passed through a bent portion on the downstream side of the horizontal portion of the main body 15a from above. The nozzle 15C further improves the suction force of the jet pump 15, and the circulating water containing foreign matter in the drain tank 14 can be efficiently discharged to the outside in a short time.

Note that the location and number of cleaning members 13 can be arbitrarily changed as long as they can effectively wash away the fluff on the filter 16.

Further, the solenoid valve 18 may be opened and closed in accordance with the water level of the drain tank 14 instead of being opened and closed by a timer. That is, a water level detection sensor is provided in the drain tank 14,
When the water level exceeds a predetermined value, the solenoid valve 18 is opened to supply water to the cleaning member 13 and jet pump 15. Filter 16
Depending on the amount of fluff collected by the purifying device 10,
can drive.

The purifying device 10 is capable of removing not only fluff but also any other foreign matter. However, the coarseness and shape of the filter 16 may be changed as appropriate depending on the type and size of the foreign matter to be collected.

The present invention can be widely applied not only to the humidifier 20 but also to purification of circulating water in a type of device in which circulating water and air are in direct contact with each other. For example, a cooling tower can basically be equipped with a purification device 10 similar to that shown in FIG. However, a cooling tower circulates cooling water between other devices, and the circulating water sent here is
Since the temperature is quite high, the entire structure should be made of a material that does not cause thermal problems.

As described in detail, the present invention includes a cleaning member that washes away foreign matter on a filter and a jet pump that discharges circulating water containing foreign matter. Since it can be easily operated by water supply, foreign substances contained in circulating water can be removed to the outside in an extremely short period of time without requiring human intervention and without interrupting the operation of devices such as humidifiers. It has the excellent effect of being able to

In addition, since the members other than the pump do not include any mechanically movable parts, there is also the excellent effect that high operational reliability can be maintained over a long period of time.

[Brief explanation of drawings]

FIGS. 1 and 2 show an embodiment, with FIG. 1 being an explanatory diagram of the overall configuration, and FIG. 2 being an enlarged exploded perspective explanatory diagram of main parts. FIG. 3 is an enlarged sectional view of main parts showing another embodiment. 10... Circulating water purification device 11... Water tank 12... Pump 13... Cleaning member 14... Drain tank 15... Jet pump 16... Filter 18... Solenoid valve

Claims (1)

[Claims] 1) A water storage tank that collects circulating water through a filter, a pump that sends the circulating water from the water storage tank, and a system that washes away foreign matter collected by the filter with the circulating water from the pump. A cleaning member, a drainage tank that stores circulating water containing foreign matter,
A circulating water purification device comprising: a jet pump connected to the pump and discharging circulating water from the drainage tank. 2) The circulating water purification device according to claim 1, wherein the cleaning member and the jet pump are connected to the pump via a solenoid valve.