JPH11138067A - Rainfall device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rainfall device which is capable of setting rainfall conditions freely and is of a simple construction with good maintenability. SOLUTION: In the rainfall device 1 which drips a water droplet from above an object, a condensation plate 5 with a plurality of terminals extending downward above the object and a means for supplying water to the condensation plate 5 are arranged to collect a condensate generated on the lower face of the condensation plate 5 into each of the terminals as a water droplet and drip the water droplet. The method for supplying the water to the condensation plate 5 is to supply the water from the upper face of the condensation plate 5 in the case of the condensation plate 5 being permeable and spray the water from the lower face in the case of the condensation plate 5 being impermeable.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a rainfall device,
In particular, the present invention relates to a rainfall apparatus which has a simple structure capable of setting desired rainfall conditions such as a rainfall range, a rainfall angle, a rainfall component, a rainfall amount, a rainfall particle size, is easy to maintain, and is suitable for an environmental test.

[0002]

2. Description of the Related Art As a conventional rainfall apparatus, for example, a raindrop is generated by vibrating a tube with water droplets generated at the tip of a tube mounted downward, or water is ejected by applying pressure from a nozzle portion. Some rainfall.

[0003]

The above-mentioned conventional tube nozzle uses a water drop portion 1 which is a rainfall outlet.
The cost per unit area is high because one tube is required for each location. In addition, those using a spray nozzle have a structure in which the diameter of the rainfall outlet, that is, the nozzle diameter is as small as 0.8 mm, has a complicated nozzle shape, and is liable to be clogged with foreign substances. .

In both cases using a tube nozzle or a spray nozzle, the rainfall particle size cannot be freely set over a wide range because the rainfall particle size is determined by the nozzle diameter. In addition, when foreign matter is clogged in the nozzle portion itself to perform rainfall directly from the nozzle, the area cannot be rained, and thus does not serve as a rainfall device.

It is therefore an object of the present invention to provide a rainfall apparatus which is capable of freely setting rainfall conditions, has a simple structure, and is easy to maintain.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, a feature of the present invention is to provide a rainfall apparatus for dropping water drops from above an object, comprising a condensation board having a plurality of terminals extending downward. Place it above the object,
Water supply means for supplying water to the condensation board is provided, and dew water generated on the lower surface of the condensation board is collected as water droplets at the terminals and dropped on the object.

According to the rainfall apparatus of the present invention, water is supplied from the water pipe having a simple shape to the dew condensation board, and the dew water generated on the lower surface of the dew condensation board is collected and dropped on each terminal as water drops. And indirect rainfall. Therefore, it is possible to freely set rainfall conditions, and to provide a rainfall device having a simple structure and good maintainability.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a system of a rainfall apparatus 1 according to an embodiment of the present invention. The outer wall surface of the test room 2 is surrounded by a heat insulating material 3 so that the test room 2 has a heat insulating effect. In the upper part of the test chamber 2, a condensed water, that is, a lunch box-shaped dew disk 5 serving as a generation source of the raindrops 4 is provided. A water supply line 15 formed to each room 5b
Has a rain range control valve 2 so that each rain range can be controlled.
4a and 24b are provided. Further, the structure of the condensation board 5 is porous and permeable.

[0010] Raindrops 4 are dropped above the condensation board 5.
In other words, a vertical shaker 6 that applies vibration in the vertical direction to the dew-condenser 5 to perform rainfall is connected to the ceiling of the test room 2 and the
Are connected between the upper surfaces of the two. Further, a horizontal vibrator 7 is connected to a side surface of the condensation board 5 to apply a vibration in a horizontal direction to the condensation board 5 to cause rainfall. Water supplied to the upper surface of the condensation board 5 permeates the inside of the condensation board 5 from the upper surface to the lower surface on the lower surface of the condensation board 5, and the dew water generated on the lower surface of the condensation board 5 is collected as water droplets, and raindrops are formed. A plurality of terminals 5a for generating and attaching 4 are provided extending downward. The terminals 5a are arranged on a plane, for example, in a grid pattern.

Above the condensation board 5, a water distribution pipe 10 for supplying water to the upper surface thereof, and a water supply tank 14 for supplying water thereto.
The water supply line 15 is connected to the water supply pipe 10 and water is supplied to the water supply pipe 1 through the water supply line 15.
0, a water supply filter 16 for filtering water, a water filter 17 for filtering water, a water pressure control valve 18, a chemical injection device 1 for injecting a chemical to adjust a hydrogen ion exponent pH (hereinafter referred to as pH).
9, a water temperature detector 20, a water pressure detector 21, and the above-mentioned rainfall range control valves 24a and 24b are provided. Below the floor of the test chamber 2, there is provided a drain 4 from which the raindrop 4 dropped from the terminal 5 a of the dew condensation board 5, that is, the rainwater, is discharged. Drain 35
A drain pump 36 is provided by a drain line 38, which is connected to a water treatment device 37 provided outside the test chamber 2.
This is performed using Around the water treatment device 37, there is provided a chemical neutralization device 39 which is used when injecting a chemical into rainwater to return to a neutralized state when the pH value is adjusted, for example, when water treatment is desired. ing. The return of the water-treated rainwater to the water supply tank 14 is performed by the treated water return line 4 that is piped from the water treatment device 37 to the water supply tank 14.
In the treated water return line 40, a pump 41 for returning treated water to the water supply tank 14 is provided.

An object 43 is provided on each side of the inner wall of the test chamber 2.
When it is desired to rain at an acute angle with respect to the wind, a wind blower 42 is provided to apply the wind to rainwater to make such a state. A test stand 4 on which the object 43 is placed is placed on the floor of the test room 2.
The test stand 44 is movable by wheels 44a and rails 44b according to the rainfall angle so that the rainwater can correspond to the rainfall range with respect to the test object 43. An indoor air conditioner 45 for performing air conditioning in the room is provided below the test room 2, and the exhaust in the room is performed by an exhaust blower 46 provided outside the test room 2.

Next, the operation of the apparatus having the above configuration will be described.

The test is carried out by placing the object 43 on a test stand 44 on the floor of the test room 2 of the rainfall apparatus 1. The rainfall conditions include a rainfall range, a rainfall angle, a rainfall component, a rainfall amount, a rainfall particle size, and the like.

Hereinafter, the setting of each condition will be described.

FIG. 2 is a top view of the dewdrop 5 and shows the range of rainfall as 2.
This shows the case of division, in which the rainfall range control valves 24a and 24b are opened and closed according to the range to be set, and the rainfall range is set. As shown in FIG. 3, the setting to move the rainfall range in the horizontal direction is, for example, to move the rainfall range from right to left.
It is performed by sequentially opening up to 5d.

To set the rainfall range to move from the center to the periphery or vice versa, the inside of the dew condensation plate 5 is partitioned in a nested manner as shown in FIG. 26a to the rainfall range control valve 26 at the outer peripheral portion
Open sequentially up to c or vice versa.

The rainfall, that is, the dropping of the raindrops 4 is performed by natural dropping by gravity or by vibrating the dew-condenser 5, and the vibrations include horizontal vibration, vertical vibration, axial vibration, vibrator vibration and the like. Conceivable. Hereinafter, each vibration method will be specifically described.

In the horizontal vibration, the raindrops 4 are dropped by reciprocating the condensation board 5 horizontally. A vibration mechanism using a horizontal eccentric cam and an air cylinder is considered.

In the vertical vibration, the raindrops 4 are dropped by vertically reciprocating the condensation board 5. A vibration mechanism using a vertical eccentric cam and an air cylinder can be considered.

The shaft excitation is performed by a dew-condenser 5 provided with a rotating shaft at the center.
The raindrop 4
Is dropped. The vibration mechanism may be a vibration mechanism using an eccentric shaft cam or a mechanism using a cylinder.

In the vibrator vibration, a vibrator is installed directly on the condensation board 5, and the vibration causes the raindrops 4 to drop.

The rain angle can be set by changing the wind speed applied to the rain from the wind blower 42, and when the wind speed is increased, the rain angle becomes the test stand 44.
When the wind speed is reduced, the rainfall angle becomes closer to a right angle to the upper surface of the test gantry 44.
Since the rainfall range changes with the change of the rainfall angle, the test gantry 44 is moved in accordance with the change, so that the necessary rainfall range is secured for the object 43 disposed thereon.

When setting the rainfall component, that is, when confirming the effect on the object 43 due to the rainfall with the adjusted pH, the chemical with the adjusted pH is injected from the chemical injection device 19 through the water supply line 15 and distributed. Condenser 5 from water pipe 10
To perform rainfall via the terminal 5a. In the case of recycling, that is, from the state where the pH of the rainfall component is adjusted
When returning to the state of H = 7, that is, the neutralized state, the neutralizing agent is injected from the chemical neutralizing device 39 to the water treatment device 37 which is a drainage destination of rainfall.

The particle size of the raindrops 4, that is, the rainfall particle size, is set by adjusting the pressure of the water pressure control valve 18, and the particle size of the raindrops 4 attached to the terminal 5 a extending downward from the condensation board 5. Therefore, a desired rainfall particle size can be achieved.

Dust and the like are supplied to the condensation board 5 from the water distribution pipe 10, and even if a partial clogging occurs, the whole is permeable, so that water is distributed by capillary action, and the rainfall range is limited by the clogging. It will not be lost. If the condensation board is backwashed after a long period of use, clogged debris can be removed and maintenance is good.

FIG. 5 is a system diagram showing another embodiment of the rainfall apparatus 1 according to the present invention. The same parts as those of the embodiment shown in FIG.

At the upper part of the test chamber 2, a non-permeable dew-condenser 5 having a plurality of terminals 5a is provided.
The two fluids, which are a mixture of water and air, are supplied to the condensation board by spraying through a water distribution pipe 10 provided below, and the condensation water generated on the lower surface of the condensation board 5 is collected and dropped on each terminal 5a as a water drop. Water is supplied to the water header 12 by a water supply tank 14.
Water supply line 15 that is piped from
The supply of air to the air header 13 is performed by an air supply line 28 that is piped from the air compressor 27 to the air header 13. Air compressor 27, receiver tank 29 for storing air, air filter 3 for filtering
0, heat exchanger 31 for adjusting temperature, air pressure control valve 32,
An air pressure detector 33 and rainfall range control valves 34a and 34b capable of controlling the rainfall range by adjusting the opening of the valve are provided.

Water supply temperature from water supply tank 14 and condensation board 5
The temperature difference is detected by a temperature difference detector 23 provided on the temperature difference confirmation line 22. The temperature of the condensation board 5 is adjusted based on the temperature difference detected by the temperature difference detector 23. For example, when it is desired to generate raindrops on the terminal 5a, that is, when it is desired to attach dew condensation water, the temperature of the condensation board 5 and the temperature of the water supply are determined. If it is necessary to increase the difference, and the temperature difference obtained by the temperature difference detector 23 is not the temperature difference at which raindrops are generated, that is, if the temperature difference is small, the cool air is supplied from the temperature controller 8 to the condensation board 5.
, The temperature difference increases, and raindrops are generated.

The cool air generated from the temperature control device 8 is sent to the condensation board 5 through the temperature control line 9 and the terminal 5 a
The water stored in the water supply tank 14 is supplied to the water header 12 through the water supply line 15 by the water supply pump 16, and the air is supplied through the air supply line 28 by the air compressor 27. It is supplied to the header 13. Then, the header 12 for water and the header 13 for air
The more mixed two fluids are supplied to a condensation board 5 located above via a water pipe 10. As a result, the atmosphere between the lower surface of the condensation board 5 and the water distribution pipe 10 is in a state in which moisture is fine, that is, in a state of water vapor 11. Then, at that time, if the temperature difference between the atmosphere below the condensation board 5 and the condensation board 5 is a temperature difference at which condensation water can be formed, condensation water is generated on the lower surface of the condensation board. The condensed water travels along the axis of a terminal 5a provided on the lower surface of the condensation board 5 and adheres to the lower end thereof, thereby generating raindrops 4.

The amount of the raindrops 4, that is, the amount of rainfall, depends on the water supply line 1.
By controlling the water pressure control valve 18 provided in the air supply line 5 and the air pressure control valve 32 provided in the air supply line 28, the supply amount from the water distribution pipe 10 is adjusted, the water pressure is a water pressure detector 21, and the air pressure is the air pressure. Detected by the detector 33, the water pressure is constant when the amount of rainfall is reduced, the air pressure is increased by increasing the air pressure, and the air pressure is increased when the amount of rainfall is increased. More to achieve the desired rainfall.

The rainfall particle size can be adjusted to a desired value by controlling the temperature of the condensation board 5 by the temperature controller 8 so that the particle size of the raindrop 4 attached to the terminal 5a can be adjusted.

Also in the embodiment of FIG. 5, the rainfall range can be freely set by dividing and arranging the water header 12 and the air header 13 as shown in FIGS.
Further, since the water distribution pipe 10 may be thick, the structure is simple and maintenance can be easily performed.

[0034]

As described above, according to the present invention,
The rainfall conditions can be freely set, and a rainfall device with a simple structure and good maintainability can be obtained.

[Brief description of the drawings]

FIG. 1 is a diagram showing a system system of a rainfall apparatus according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating setting of a rainfall range in the rainfall device shown in FIG.

FIG. 3 is a diagram illustrating setting of a rainfall range in the rainfall device shown in FIG. 1;

FIG. 4 is a diagram illustrating setting of a rainfall range in the rainfall device shown in FIG. 1;

FIG. 5 is a diagram showing a system of a rainfall apparatus according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Rainfall apparatus 2 ... Test room 3 ... Insulation material 4 ... Raindrops 5 ... Condenser 5a ... Terminal 5b ... Room 6 ... Vertical shaker 7 ...・ Horizontal vibrator 8 ・ ・ ・ Temperature control device 9 ・ ・ ・ Temperature control line 10 ・ ・ ・ Drain pipe 11 ・ ・ ・ Steam 12 ・ ・ ・ Water header 13 ・ ・ ・ Air header 14 ・ ・ ・ Water supply tank 15 ... water supply line 16 ... water supply pump 17 ... water filter 18 ... water pressure control valve 19 ... chemical injection device 20 ... water temperature detector 21 ... water pressure detector 22 ...・ Temperature difference confirmation line 23 ・ ・ ・ Temperature difference detector 24a, 24b ・ ・ ・ Rain range control valve 25a, 25b, 25c, 25d ・ ・ ・ Rain range control valve 26a, 26b, 26c ・ ・ ・ Rain range control valve 27 ... air compressor 28 ... air supply line 29 ... receiver Link 30 ・ ・ ・ Air filter 31 ・ ・ ・ Heat exchanger 32 ・ ・ ・ Air pressure control valve 33 ・ ・ ・ Air pressure detector 34a, 34b ・ ・ ・ Rainfall range control valve 35 ・ ・ ・ Drainage groove 36 ・ ・ ・ Drainage Pump 37 ・ ・ ・ Water treatment device 38 ・ ・ ・ Drainage line 39 ・ ・ ・ Chemical neutralization device 40 ・ ・ ・ Treatment water return line 41 ・ ・ ・ Pumping pump 42 ・ ・ ・ Wind blower 43 ・ ・ ・ Object 44 ・..Test stand 44a Wheels 44b Rail 45 Indoor air conditioner 46 Exhaust blower

Claims (2)

[Claims] 1. A rainfall apparatus for dropping water droplets from above an object, wherein a condensation board having a plurality of terminals extending downward is arranged above the object, and water is supplied to the condensation board. A rainfall device comprising a water supply means, wherein dew water generated on a lower surface of the dew condensation board is collected as water droplets at the terminals and dropped on the object. 2. A water supply means for supplying water to the condensation board, wherein the water supply means for supplying water from the upper surface of the condensation board when the condensation board is permeable, A rainfall apparatus characterized in that some are supplied by spraying from below.