JPH0564732A - Dilution apparatus - Google Patents

Abstract

PURPOSE:To provide a dilution device capable of diluting a raw solution with tap water using the pressure of tap water while the concn. of the raw water is made hard to change regardless of a change in the pressure of tap water. CONSTITUTION:The storage part 3 or 4 of a raw solution A or B is connected to a dilution chamber 8 by a liquid supply passage 5 or 6 constituted so that the raw solution A or B flows in the dilution chamber 8 under its own wt. and a water supply passage 9 is connected to the dilution chamber 8 so as to supply tap water by the pressure thereof. The water supply passage 9 is equipped with a constant flow rate control valve V4 automatically operated by the pressure of tap water to supply a constant amount of tap water to the dilution chamber 8 regardless of a change in the pressure of tap water. The raw solution A or B from the liquid supply passage 5 or 6 is mixed with the tap water from the water supply passage 9 in the dilution chamber 8 to prepare a diluted solution which is, in turn, sent to a taking-out passage 10 by the pressure of the tap water from the water supply passage 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a diluter for mixing a stock solution with tap water to prepare a diluting solution.

[0002]

2. Description of the Related Art Conventionally, in this type of diluting device, tap water is supplied to a diluting chamber for producing a diluting liquid by tap water pressure, and an undiluted liquid is discharged from a container by an ejector action by tap water pressure of this water supply passage. The dilution liquid is taken out and supplied to the diluting chamber, and the diluting liquid is taken out from the diluting chamber by tap water pressure, so that the diluting liquid can be produced advantageously in terms of structure and cost without using an electric pump. There was something that was possible.

[0003]

Conventionally, when the tap water pressure is different due to the difference in the place of use or the tap water pressure changes during use, the stock solution supply performance to the diluting chamber changes, and the stock solution of the diluted diluent taken out is changed. The concentration sometimes changed. An object of the present invention is to provide a diluting device that does not require an electric pump but is unlikely to cause a concentration change regardless of a change in tap water pressure.

[0004]

In order to achieve the object, a diluting apparatus according to the present invention comprises a stock solution storage section and a diluting chamber for mixing the stock solution with tap water to prepare a diluting solution. Provided, the storage unit and the dilution chamber are connected to each other by a liquid supply path that causes the stock solution inside the storage unit to flow into the dilution chamber by its own weight and at a set flow rate, and tap water is supplied to the dilution chamber by tap water pressure. A supply water channel to be supplied and an extraction path for taking out the diluting liquid from the dilution chamber by the supply water pressure of the dilution chamber are connected to the dilution chamber, and are automatically operated by the tap water pressure to maintain a constant tap water flow rate to the dilution chamber. A constant flow control valve is provided in the water supply passage. The action and effect are as follows.

[0005]

The tap water flows into the diluting chamber by its water pressure, and the undiluted solution flows into the diluting chamber by its own gravity flow to make the diluting liquid, and the diluting liquid made is sent out by the water supply pressure from the diluting chamber. And even if the tap water pressure changes,
The flow rate to the diluting chamber becomes a constant amount without excess or deficiency due to the constant flow control valve that automatically operates by water pressure, and the undiluted solution flows into the diluting chamber from the storage part without hindrance due to its own weight inflow.
This inflow amount becomes a desired set flow rate determined by the cross-sectional area of the liquid supply passage and the setting and control of the liquid supply valve, and the diluting liquid is prepared in a state in which the concentration of the stock solution hardly changes.

[0006]

The use of tap water pressure and the inflow of undiluted solution by its own weight made it possible to obtain an electric pump without using an electric pump with a relatively simple structure and at a low cost. Moreover, even if there is a change in tap water pressure, the constant flow rate control valve and the inflow of the stock solution by its own weight have made it possible to obtain the diluted solution with little change in the concentration of the stock solution and with a small dilution accuracy.

[0007]

EXAMPLES Next, examples will be shown. As shown in FIG. 1, a pair of stock solution storage trays 3 and 4 are attached to the inside of a case 2 provided with a front lid 1 which can be swingably opened and closed, and an electromagnetic liquid supply valve V ₁ or A diluting chamber 8 is provided by a pipe 7 connected by a liquid supply path 5 or 6 composed of a hose provided with V _2.
Is formed in the lower part of the case 2, and a water supply passage 9 made of a hose equipped with an electromagnetic water supply valve V ₃ is provided at one end of the pipe 7 and an extraction passage 10 made of a hose is provided at the other end of the pipe 7. Connected to form a diluter. This diluting device is attached to a wall surface or the like at the rear side of the case 2, stores the detergent stock solution A in one stock solution storage tray 3 and the detergent stock solution B in the other stock solution storage tray 4, and forms a water supply channel 9. Water faucet 11
2 and by operating a plurality of operation switches 12 to 17 having operation buttons located on the outer surface side of the front lid 1 as shown in FIG. 2, one or both of the detergent stock solutions A and B are supplied with tap water. With a set take-out amount of three kinds of diluted liquids for washing walls, windows, floors, furniture, etc.
It is taken out from 0, and the details are configured as follows.

As shown in FIG. 1, the undiluted solution reservoirs 3 and 4 are mounted so that the undiluted solution container 18 or 19 is turned upside down so that the liquid outlet 20 enters the reservoir 3 or 4. Alternatively, it is configured to store B. That is, when the stock solution container 18 or 19 is put in the mounted state, the stock solution storage tray 3 or 4 receives the container via the lid breaking cylinder 21, and the case 2 holds the sensor plate 2.
The stock solution container 18 or 19 is maintained in an inverted state by receiving the container via 2a or 22b, and the lid breaking cylinder 21 breaks through the resin inner lid 23 of the liquid outlet 20 and the lid breaking cylinder 21 and The inside of the container and the inside of the pan communicate with each other due to the passage 24 between the lid breaking cylinder 21 and the bottom surface of the inside of the pan, and as a result, the stock solution container 18 or 19 is formed.
The undiluted solution A or B of the internal detergent flows out into the undiluted solution storage pan 3 or 4 by its own weight and stays there.

The liquid supply paths 5 and 6 connect the stock solution storage pans 3 or 4 and the dilution chamber 8, and the dilution chamber 8 is located at a lower level than the stock solution storage pans 3 and 4, so that When the liquid supply valve V ₁ or V ₂ is opened, the liquid supply paths 5 and 6 are used as the inner detergent stock solution A of the stock solution reservoir 3 or 4.
Alternatively, B is introduced by its own weight and the liquid supply path 5 or 6
Is configured to flow into the diluting chamber 8 at a set flow rate L per unit time, which is determined by the cross-sectional area of V and the opening of the liquid supply valve V ₁ or V ₂ . The set flow rate L is set to 120 ml / min.

The water supply passage 9 is connected to one end of the diluting chamber 8 so that tap water from the faucet 11 is supplied to the diluting chamber 8 by its water pressure when the water supply valve V ₃ is opened. Water supply channel 9
The constant flow rate control valve V ₄ is provided at a position located upstream of the water supply valve V ₃ and the tap water pressure is 1.5 kgf / cm ² or more, even if the tap water pressure changes, the constant flow rate control valve V The water supply passage 9 is configured to supply water while maintaining the tap water flow rate at a constant amount of 6 l / min by automatic operation by the tap water pressure of ₄ . That is, in the constant flow rate control valve V ₄ , as shown in FIG. 3, the variable orifice 27 is formed by the notch groove provided around the resin cup 25 and the rubber flow sheet 26, and the cup is formed. Fixed orifices 28 are respectively formed by the central flow passages of 25, and tap water from the faucet side passes through the filter 29 and the pusher plate 30 and at the same time through the fixed orifice 28 and the variable orifice 27.
6 through the through-hole flow path 31 to the dilution chamber side, and the cup 2 due to the change in the water pressure acting on the cup 25 and the elasticity of the flow sheet 26 with the change in the water pressure.
The notch 5 sinks into the flow sheet 26 or is exposed from the flow sheet 26 so that the variable orifice 27 changes. That is, the set flow rate is maintained and controlled by the combined flow rate of the variable orifice 27 and the fixed orifice 28.

In the diluting chamber 8, tap water is supplied by the water supply passage 9, the detergent stock solution A flows in from the liquid supply path 5, and the detergent stock solution B flows in from the liquid supply path 6, so that the detergent stock solutions A and B are mixed. Dilution solution X in which tap water is mixed and only detergent stock solution A is mixed in tap water, or dilution solution Y in which detergent stock solutions A and B are mixed in tap water, or dilution solution in which only detergent stock solution B is mixed in tap water It is configured to create Z. Extraction channel 1
0 is connected to the side of the diluting chamber 8 opposite to the water supply path connecting side so that the diluting liquid X or Y or Z is delivered by the diluting chamber 8 so that the diluting liquid X or the diluting liquid X or Y or Z is configured to be taken out from the diluting chamber 8.

As shown in FIG. 4, the liquid supply valve V₁And V₂,
Water supply valve V₃Via valve drive circuit 32 or 33 or 34
And the dilution system installed on the inner surface side of the front cover 1
The operation switches 12 to 17 are linked to the control mechanism 35.
I have it. The dilution control mechanism 35 is a microcomputer
Information from the operating switches 12 to 17
Based on the report and the flow charts shown in FIGS.
Automatically actuates to supply liquid V ₁And V₂, Water supply valve V₃Control of
The operation switch 12
Setting of dilution liquid X or Y or Z by operating the wheel 17
It is possible to take out in quantity. That is, the operation switch
Switches 12, 13 and 14 are used to select the diluent for extraction.
The operation switch 12 operates the diluent X with the operation switch.
H is the diluent Y, and the operation switch 14 is the diluent Z.
It is something to choose. Operation switches 15, 16 and 1
7 is a switch for setting the amount of diluting liquid withdrawn Q, which is operated
Switch 15 sets the take-out amount Q = 400 ml and the operation switch
Q16: Take out quantity Q = 2000 ml, and operate switch 1
7 sets the take-out amount Q = 5000 ml, respectively.
It Operation of the operation switch 12 or 13 or 14
And the operation switch 15 or 16 or 17
Operation is performed, the dilution control mechanism 35 operates the operation switch 12
Based on the information from Nos. 17 to 17, the liquid supply valve V₁Open time = T₁(Second) Liquid supply valve V₂Open time = T₂(Second) Liquid supply valve V₃Open time = T₃(Sec) is set as shown in FIGS. 6 and 7 and Table 1 below.

[0013]

[Table 1]

When the opening times T ₁ , T _{2 and} T ₃ are set, the dilution control mechanism 35 outputs a predetermined signal to the drive circuits 32, 33 and 34 to operate them, thereby selecting the selected diluent. Extraction amount Q = 4 with X, Y or Z set
Open only one or both of the liquid supply valves V ₁ and V ₂ for a set time T ₁ or T _{2 and} open the water supply valve V ₃ for a set time T ₃ so that only 00 ml, 2000 ml or 5000 ml is discharged. Of. When the take-out amount Q is set to 400 ml, the dilution control mechanism 35
As shown in FIG. 6, a delay time t = 2 seconds is set so that the water supply valve V ₃ opens after a delay time t has elapsed after the liquid supply valves V ₁ and V ₂ opened. When the valve control is performed and the withdrawal amount Q is set to 2000 ml or 5000 ml, the dilution control mechanism 35 causes the liquid supply valves V ₁ and V ₂ and the water supply valve V ₃ to open simultaneously as shown in FIG. 7. In addition, the valve control is performed without setting the delay time t.

The detection switches 36a and 36 shown in FIG.
6b is a spring 37a or 37b for urging the container 18 or 19 with the sensor plate 22a or 22b emptied.
The result of detecting that the container 18 or 19 is emptied is electrically taken out by pushing and moving the container 18 or 19 to the inside of the case from the inverted position before emptied due to the operating force of. The alarm lamps 38a and 38b shown in FIG. 2 are operated to light based on the information from the detection switch 36a or 36b to give an alarm that the container 18 or 19 is empty. The switch 39 shown in FIG. 2 is a power switch, and the lamp 40 is a power lamp.

A diluting device may be configured to dilute three or more kinds of detergent stock solutions or a single kind of detergent stock solution with tap water, or a diluting apparatus to prepare a liquid fertilizer by diluting a fertilizer stock solution in addition to the detergent stock solution. The present invention can be applied to the case where Therefore, simply dilute these dilution target stock solutions A,
Called B. Instead of the stock solution storage pans 3 and 4, a tank configured to take out and store the entire stock solution inside the container may be used. Therefore, these are collectively referred to as stock solution storage units 3 and 4.

It should be noted that although reference numerals are given in the claims for convenience of comparison with the drawings, the present invention is not limited to the configuration of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a diluter.

FIG. 2 is a front view of the operation switch.

FIG. 3 is a sectional view of a constant flow control valve.

FIG. 4 is a block diagram of a control system

FIG. 5 is an explanatory diagram of a flow chart extraction setting unit.

FIG. 6 is an explanatory diagram of a flow chart valve control unit.

FIG. 7 is an explanatory diagram of a flow chart valve control unit.

[Explanation of symbols]

3,4 Reservoir 5,6 Liquid supply channel 8 Diluting chamber 9 Water supply channel 10 Extraction channel A, B Undiluted solution V ₄ Constant flow control valve X, Y, Z Diluted solution

Claims (1)

[Claims] 1. A storage portion (3) for stock solution (A or B),
(4) and a diluting chamber (8) for preparing a diluting solution by mixing the undiluted solutions (A) and (B) with tap water, and the undiluted solution (internal stock solution of the storage parts (3) and (4) ( The storage part (3), by means of a liquid supply path (5 or 6) for allowing A or B) to flow into the dilution chamber (8) by its own weight and at a set flow rate.
(4) and the dilution chamber (8) are connected to each other, a water supply channel (9) for supplying tap water to the dilution chamber (8) by tap water pressure, and the dilution by the water supply pressure of the dilution chamber (8). A take-out path (10) for taking out the diluting liquids (X), (Y), (Z) from the chamber (8) is connected to the diluting chamber (8), and is automatically operated by tap water pressure to the diluting chamber (8). A diluting device having a constant flow control valve (V ₄ ) for maintaining a constant tap water flow rate in the water supply passage (9).