JPH0789596A - Flow rate regulator - Google Patents

Abstract

PURPOSE:To ensure a constant liquid flow rate at all times irrespective of a temperature change, by setting the degree of the opening of the outflow hole of a fixed substrate so that the degree decreases with a temperature increase, and increases with a temperature decrease. CONSTITUTION:The base 2a of a temperature sensing member 2, bent in a U-shape, which deforms by sensing a temperature is fixed to a fixing substrate 1. A movable substrate 3 is provided at the free end 2b of the temperature sensing member 2 so that the degree of the opening of a liquid outflow hole 4 made in the fixed substrate 1 can vary. A control part 5 comprised of a hole is formed on the movable substrate 3, which is part of the temperature sensing member 2, and a flow rate is regulated by a change in the degree of the matching of the hole and the outflow hole 4 of the fixed substrate 1. An amount of the displacement of the temperature sensing member 2, which deforms due to a temperature change, and an amount of change in the degree of the opening of the outflow hole 4 of the fixed substrate 1 are set so that a flow rate in the outflow hole 4 is made constant. In liquid piping the temperature sensing member 2 senses the temperature of a liquid and deforms, so that the degree of the opening of the outflow hole 4 changes by means of the control part 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid flow rate adjusting device, and more particularly to a flow rate adjusting device capable of quantitatively flowing out a liquid whose viscosity changes with temperature regardless of temperature change.

[0002]

2. Description of the Related Art Conventionally, as a means for controlling a liquid such as a beverage for quantitative dispensing, an orifice is generally provided in a pipe and the orifice is used to quantify and dispense the liquid.

[0003]

However, depending on the type of liquid, if the liquid has a property that the viscosity of the liquid greatly changes with temperature (non-Newtonian liquid), it is difficult to quantify the temperature change with an orifice, and the flow rate is However, there was a problem in that there was a tendency for variations to occur, and accurate flow rate control could not be performed.

In view of this, an object of the present invention is to provide a flow rate adjusting device capable of ensuring a constant flow rate according to the temperature even if the viscosity changes due to the temperature change.

[0005]

As a means for solving the problems of the above-mentioned conventional techniques, the present invention provides a fixed substrate,
A movable substrate slidably provided with respect to the fixed substrate, the fixed substrate is provided with a liquid outflow hole, and the movable substrate is provided with a control unit for controlling the opening degree of the outflow hole. A temperature sensing member that senses and displaces to drive the movable substrate is joined, and the movable substrate is driven by the temperature sensing of the temperature sensing member to control the outflow hole area.

[0006]

The above device is arranged in the liquid passage, and the temperature sensing member senses the liquid temperature and displaces the liquid temperature, whereby the movable substrate is driven and the opening of the outflow hole of the fixed substrate changes. Therefore, when the temperature rises and the viscosity of the liquid decreases, the opening degree of the outflow hole is reduced, and when the temperature decreases and the viscosity of the liquid increases, the opening degree of the outflow hole increases, so that the opening degree of the outflow hole increases regardless of the temperature change. The liquid flow rate is always kept constant.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in the drawings. FIG. 1 shows an embodiment of the present invention, in which a disk-shaped fixed substrate 1 fixedly arranged in a pipe is made of a material (typically a bimetal) which is deformed by sensing temperature, The base portion 2a of the temperature sensing member 2 bent in a U shape is fixed, and the movable substrate 3 is attached to the free end 2b of the temperature sensing member 2.
Are provided so that the opening degree of the liquid outflow hole 4 formed in the fixed substrate 1 can be changed. In this embodiment, the movable substrate 3 is made of a part of the temperature sensing member 2, and the movable substrate 3
A control unit 5 formed of a hole is formed in the hole, and the flow rate is adjusted by varying the degree of matching between the control unit 5 and the outflow hole 4 of the fixed substrate 1 between the solid line and the chain line. It is like this. Reference numeral 6 indicates a mounting seat for incorporating the pipe.

FIG. 2 shows a state where the temperature sensing member 2 is incorporated in the pipe 7. The temperature sensing member 2 is located on the upstream side and is arranged so as to sense the temperature of the liquid.

FIG. 3 shows a modification of FIG. 1, in which the temperature sensing member 2 is formed in a spiral shape (spring shape), a base portion 2a thereof is fixed to a fixed substrate 1, and a movable substrate 3 is attached to a free end 2b. Is provided, and the degree of alignment between the control portion 5 formed of the hole of the movable substrate 3 and the outflow hole 4 of the fixed substrate 1 is changed.

FIG. 4 shows an embodiment in which the temperature sensing member 2 has a spiral shape. The base portion 2a is fixed to the fixed substrate 1, the movable substrate 3 is fixed to the free end 2b, and the spiral portion 2c is rotated. The movable substrate 3 is rotated by the fixed substrate 1
The opening degree of the outflow hole 4 is adjusted.

In the case of this embodiment, the movable substrate 3 is disc-shaped, and the control portion 5 having a hole structure is formed in the movable substrate 3, and the center of the movable substrate 3 is rotatably supported by the shaft 8 about the center of the fixed substrate 1.
The movable substrate 3 is rotated about the axis 8 or one end of the movable substrate 3 is rotatably supported on the fixed substrate 1 by the shaft 8 as shown in FIG. With the free end 2b of the temperature sensing member 2 fixed, the movable substrate 3 is configured to be swiveled around an axis 8.

The free end 2b of the temperature sensing member 2 and the movable substrate 3
For example, as shown in FIG. 5, the fixing is performed by fixing the free end 2b of the temperature sensing member 2 to the slit 10 formed in the angular boss 9 projecting on the movable substrate 3 by using a screw or the like. It If the slit 10 is L-shaped as shown in FIG. 6, it is possible to further prevent the slit 10 from coming off.

FIG. 7 shows the temperature sensing member 2 of FIG. 1 placed horizontally, and FIG. 8 shows the temperature sensing member 2 bent in a meandering manner, both of which are movable at their free ends 2b. A substrate 3 is provided.

FIGS. 9 and 10 show still another embodiment, in which a cylindrical portion 11 with a slit is erected on a fixed substrate 1 and a temperature sensing member 2 wound around it in a coil shape.
The upper end 2c of the temperature sensing member 2 is fitted to the outer peripheral surface of the upper end edge of the cylindrical portion 11, and a stopper 12 having a U-shaped cross section is press-fitted from above to press the temperature sensing member 2
The upper end 2d of is fixed to the cylindrical portion 11.

A groove 13 is formed on the upper surface near the periphery of the fixed substrate 1 concentrically with the cylindrical portion 11, and the movable substrate 3 is slidably fitted into the groove 13 as closely as possible. The slit 1 of the mounting portion 14 on the upper surface of the movable substrate 3
The lower end 2e of the temperature sensing member 2 is fixed to the 4a by inserting.

A liquid outflow hole 4 is opened in the inner bottom portion of the groove 13, and a control portion 5 composed of a hole is formed at a position near the end of the movable substrate 3, and the movable substrate 3 is shown in FIG. The opening area of the outflow hole 4 is controlled by sliding in the direction of the arrow.

FIG. 11 shows another means for fixing the upper end of the temperature sensing member 2 to the upper end of the cylindrical portion 11 in the above-mentioned embodiment. The protrusion 15 and the concave portion 16 are formed on the inner circumference of the upper end of the cylindrical portion 11. Has a ring-shaped stop member 17 fixed by fitting of the above, and the flange portion 17a at the outer peripheral edge of this stop member 17 and the cylindrical portion 1
The upper end 2d of the temperature sensing member 2 is sandwiched between the outer peripheral surface of the first member 1 and the outer peripheral surface of the first member 1 and fixed. According to this, since the temperature sensing member 2 can be fixed only by fitting the stopper member 17 to the cylindrical portion 11 at the time of assembly, the assembly (automation) is facilitated.

In any of the above-mentioned embodiments, the displacement amount of the temperature sensing member 2 which is transformed by the temperature change and the fixed substrate 1 are changed.
The opening change amount of the outflow hole 4 is set in advance so that the flow rate of the outflow hole 4 becomes constant, and the movable substrate 3 is placed upstream in the pipe 7 so that the movable substrate 3 is brought into close contact with the fixed substrate 1 by hydraulic pressure. , Stable operation is performed.

Therefore, the movable substrate 3 is driven by arranging the above device in the liquid pipe, and the temperature sensing member 2 senses and transforms the liquid temperature, and the opening of the outflow hole 4 of the fixed substrate 1 is changed. 3 by the control unit 5. As a result, when the temperature rises and the viscosity of the liquid decreases, the opening degree of the outflow hole 4 decreases and the flow rate decreases, and when the temperature decreases and the viscosity of the liquid increases, the opening degree of the outflow hole 4 increases and the flow rate increases. As a result, the flow rate according to the temperature change can be kept constant.

[0020]

As described above, according to the present invention, even a liquid whose viscosity changes greatly depending on temperature can be dispensed in a fixed amount and can be easily incorporated into a pipe. It is also possible to apply to, and since it has a simple structure, it has various effects such as being able to be provided at low cost.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which the flow rate adjusting device of FIG. 1 is incorporated in a pipe.

FIG. 3 is a perspective view showing another embodiment of the present invention.

FIG. 4 is a perspective view showing still another embodiment of the present invention.

5 is an exploded perspective view of a portion of FIG.

FIG. 6 is an exploded perspective view showing another example of the same.

FIG. 7 is a perspective view showing still another embodiment of the present invention.

FIG. 8 is a perspective view showing still another embodiment.

FIG. 9 is a perspective view showing still another embodiment of the present invention.

FIG. 10 is a partially enlarged perspective view of the same.

11 is a perspective view showing a modified example of the fixing means at the upper end of the temperature sensing member of FIG.

12 is a partially enlarged sectional view of the fixing means of FIG.

[Explanation of symbols]

 1 Fixed Substrate 2 Temperature Sensing Member 3 Movable Substrate 4 Outflow Hole 5 Control Section 6 Mounting Seat 7 Piping 8 Shaft 9 Boss 10 Slit 11 Cylindrical Section 12 Stopper 13 Groove 17 Stopper

Claims (1)

[Claims] 1. A fixed substrate and a movable substrate slidably provided with respect to the fixed substrate, wherein the fixed substrate is provided with a liquid outlet hole, and the movable substrate is controlled in opening degree of the outlet hole. And a temperature sensing member for sensing the temperature and displacing the movable substrate to drive the movable substrate. The temperature sensing of the temperature sensing member drives the movable substrate to control the outflow hole area. A flow rate adjusting device characterized in that