JPS6181999A - Proportional mixer for liquid - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application in M Industry] The present invention relates to a liquid ratio mixing device for mixing, for example, regular gasoline and high octane gasoline in a desired ratio.

"Prior Art" and "Problems to be Solved by the Invention" Conventionally, there are many known examples of ratio mixing devices that mix two liquids with different pressures at a desired ratio.

However, all of the above-mentioned known examples have complicated structures and require a large amount of cost, making it difficult to easily install them in gasoline metering machines at gas stations.

On the other hand, as the feel of automobiles has become more sophisticated in recent years, there has been an increasing tendency among general drivers to use mixed gasoline, which is a mixture of regular gasoline and high-octane gasoline in a desired ratio.

However, the reality is that gasoline ratio mixers are hardly used due to the above-mentioned drawbacks.

The present invention has been made in view of the above-mentioned circumstances, and it is an object of the present invention to provide a liquid ratio mixing device that has a simple structure and can be easily installed, thereby solving the above-mentioned conventional problems.

"Means for Solving the Problems" The present invention, which achieves the above-mentioned objects, is based on the liquid A at the pressure Pa to be pumped through the vibrator line by the pump 5 and the pressure In mixing Pb liquid B at a predetermined ratio, a pressure equalizing section 1 and an orifice section 2 are provided, and the pressure equalizing section 1 has a secondary pressure Pi P of liquids A and B.
A pressure receiving part 3 receives pressure 'b on both sides and operates according to the difference between Phi and 〆b, and a pressure regulating valve 4A4B linked to the pressure receiving part 3 and provided in each flow path of liquids A and H. Furthermore, the orifice section 2 is provided with a group of a pair of constricted sections 6,6' of constricted channels corresponding to the required ratio of the liquids A and B. The pressure feed pipe 8 is connected to the primary side of the pressure equalizing section 1, and the secondary side of the pressure equalizing section 1 and the orifice section 2 are connected. Note that 7 in the figure is a flow meter.

"Operation" According to the ratio mixing device of the present invention described above, the pressure receiving part 3 of the pressure equalizing part 1 receives the secondary pressures P'&, Pt of the liquids A and B on both sides thereof, and P', -P' The pressure regulating valve 4A4B operates sensitively in the direction C shown in the figure according to the difference between b or P'b - P'a.
, and the secondary pressure P'aP'b of liquids A and B is P'a=
Adjust to equal pressure of P'b. Then, liquid A with equal pressure
1B is a pair of throttle parts 6.6' of the throttle channel selected in advance.
, or 626'2, etc., and mixed in the desired ratio. The simple structure allows a mixed liquid with high mixing ratio accuracy to be continuously generated.

"Example" Hereinafter, the structure and operation will be explained in detail by referring to an example. In FIGS. 2 to 4 showing one embodiment, first, the pressure equalizing part 1 has a closed hollow cylindrical shape as shown in FIG. 2, and has a pressure receiving part 3 in the center. It is divided into two airtight liquid chambers 10AIQB. The pressure receiving part 3 includes a pressure receiving plate 13 provided on a cylindrical metal bellows 12 attached to a partition plate 11.
3 receives the liquid pressure fed to the liquid chamber 10A10B on both the left and right walls, and the metal bellows 12 actuate left and right depending on the difference in the received pressure.

On the other hand, the liquid chamber 10 A 10 B is provided with an outflow port 15 near the pressure receiving part 3 and an inflow boat 14 near the end. A gap 8116 is formed therethrough. and,
A pressure regulating valve 4A4B attached to the tip of a rod 9 fixed through the center of the pressure receiving plate 13 is engaged with the flow path 17, and the rod 9 is interlocked with the operation of the pressure receiving part 3. The pressure regulating valve 4A4B at the tip of the rod 9 adjusts the flow area of the flow path 17 and prevents the fluid AXB from entering the outflow boat 15 side.
It is configured to adjust.

That is, the pressure equalizing section 1 receives the secondary side pressures PaI'b of the two liquids A and B having different primary side pressures f'aPb on both sides of the pressure receiving section 3, and based on the pressure difference, the pressure receiving plate 13 is moved from side to side. The LEA is operated to adjust the flow rate passing through each channel 17, and the secondary pressure Pt1 coming out from the outflow boat 15 is
)'b is configured to equalize the pressure so that Ph=P'b is always the same.

Next, as shown in FIG. 3, the orifice portion 2 has a valve body 20 housed in the casing body 18, and the valve body 20 is airtightly joined to a tapered part of the inner wall of the casing body 18 at the enlarged part of the base. The head protrudes from the casing body 18 and has an operating lever 22 attached thereto, and the valve body 20 can be rotated within the casing body 18 by rotation of the operating lever 22.

A valve body 2 is provided on the lower side of the casing body 18.
Liquid inflow bow located on the extension of the diameter of 0)19A1
9B, and an outflow boat 21 for the mixed liquid ' is provided at the bottom of the casing body 18, and at the enlarged part of the base of the valve body 20, a pair of diaphragms K are formed opposite to each other on the diameter of the enlarged part. 'l m 616C16□6 flea, 6s 6S
% 646 SO group, each of which is a pair of constricted portions 616, etc., is provided with its own constricted channel 8 that allows liquids A and B to flow at a required ratio.

Then, when the valve body 20 is rotated to make the inflow boat 19A 19B and one of the pair of constriction parts 66' communicate with each other, the liquids A and B pass through the constriction part 66' and the outflow boat 21.
The liquid mixture is discharged as a mixed liquid mixed at a required ratio.

Note that when rotating the operating lever 22, in order to alleviate the initial rotational resistance due to close contact between the valve body 20 and the casing body 18, the operating lever 22 is lowered slightly in advance, and the valve body 2 is rotated.
0 is raised only as shown in the figure, and the valve body 20 and the casing body 18 are removed.
This is done so that it can be separated and then rotated lightly.

Further, numeral 23 in the figure is a barrier plate for smoothing the outflow from the outflow boat 21.

When the pressure equalizing section 1 and the orifice section 2 having the above configuration are connected as shown in Fig. 1, and the two liquids A and B are pumped by selecting the constriction section 6.6' with the required mixing ratio, - next pressure PaPb The throttle section 6 is always adjusted to an equal secondary pressure P'LPt regardless of the pressure difference, pressure height, or pressure fluctuation, and has a throttle channel S having a size of a required ratio based on the equal pressure. Since the flow rate is adjusted by .6', the outflow boat 2 of the orifice part 2
A mixed liquid with a high mixing ratio accuracy will be continuously generated and discharged from 1. According to the above example, the mixing performance of regular gasoline (hereinafter referred to as liquid A) and high octane gasoline (hereinafter referred to as liquid B) was tested as shown in the table below. It is as follows.

Experiment I Liquid A knee pressure (Pa) 1.0 kq/cm2, throttle channel S diameter 7 mm, theoretical mixing ratio 57.6% B liquid knee pressure (Pb) 12 kg 7 cm2, throttle channel 5 (
7) The results of mixing under the conditions of a diameter of 13 mm and a theoretical mixing ratio of 42.4% or more are as follows: Experiment 2 Liquid A knee secondary pressure (Pa) 1.5 kq/cm2, diameter of throttle channel S 5 mm, theoretical mixing Ratio 28.1% B liquid knee secondary pressure (Pb) O, (1#/crn2, throttle channel S diameter 3m port 1, theoretical mixing ratio 71.9% The results of mixing under the above conditions are as shown below. As shown in the above experimental results, the reproducibility of the mixing ratio is extremely high, and a mixed gasoline with a stable mixing ratio can be produced.

In addition, in the above-mentioned structure of the present invention, the pressure equalizing section 1 has a unique function of detecting the relative pressure difference between the two liquids and adjusting the pressure equalization without using either of the two liquids A and B as the reference pressure. Something,
The pressure receiving portion 3 may not only have the pressure plate structure of the metal bellows of the above embodiment, but may also be of the piston type shown in the first figure.

Furthermore, the present invention can be used not only for gasoline mixing as exemplified above, but also for general two-liquid mixing.

Next, Fig. 4 shows an application example in which the ratio mixing device of the present invention is incorporated into an existing gasoline metering machine at a gas station. , high power, good fuel consumption and durability]
, high-octane gasoline with excellent kingability can be automatically mixed and supplied with regular gasoline at the required ratio.

"Effects of the Invention" As described above, the ratio mixing device of the present invention is simple and has excellent mixing performance, and can be provided at low cost, so it can be easily installed in a gasoline metering machine as in the above embodiment. It has the effect of improving convenience for the general public by incorporating it into a vehicle and supplying mixed gasoline, meeting the demand for improved driving feeling due to luxury trends.

[Brief explanation of drawings]

Fig. 1: Basic conceptual diagram of the liquid ratio mixing device of the present invention, Fig. 2: Front sectional view showing structure 3 of the pressure equalizing section of an embodiment of the present invention, Fig. 3: Orifice section of an embodiment of the present invention A front cross-sectional view (5) showing the structure of the
Fig. 4: A perspective view showing a gasoline metering machine incorporating the liquid mixing device of the present invention. Symbols on the top: 1: pressure equalizing section, 2 nitrogen orifice section, 3: pressure receiving section, 4A4B: pressure regulating valve, 6.6
': Throttle part, 9: Rod, l0AIOB S liquid plan, 11
: Partition plate, 12: Bellows, 13: Pressure receiving plate, 14: Inflow boat, 15: Outflow boat), 16; Partition wall, 17: Channel, 1
8: Housing body, 19A19B: Inflow boat, 20
: Valve body, 21: Outflow boat, 22: Operation lever Patent applicant: Daikyo Engineering Co., Ltd. Patent attorney Masami Oka Figure 1

Claims (1)

[Claims] (1) A liquid ratio mixing device for mixing two liquids at a predetermined ratio, which consists of a pressure equalizing part and an orifice part, and the pressure equalizing part receives the pressure of each of the liquids on both sides, and the difference in the received pressure is a pressure receiving part that operates based on the pressure receiving part; and a pressure regulating valve that is interlocked with the pressure receiving part and provided in the flow path of the liquid;
The orifice section is provided with at least a pair of constriction sections each having a constriction channel corresponding to the ratio of the liquid, and the pressure-feeding pipe for the liquid is connected to the primary side of the pressure equalization section;
A liquid ratio mixing device characterized by a structure in which the secondary side of the pressure equalizing section and the orifice section are connected.