JPH06288484A - Submerged valve - Google Patents

Abstract

PURPOSE:To reduce labor in the manufacture of a valve device and make the cost low by providing a valve body with two valve plates opened/closed mutually in reverse proportion. CONSTITUTION:A submerged valve device 10 is formed of a driving part 20 and a valve body part 50, and two valve plates 52, 53 are disposed on both sides of a valve body 51 so as to control the flow of two kinds of fluids as shown by arrow marks. When a motor gear is driven by a motor, a first interlocking gear and a second interlocking gear are rotated in the opposite directions through an idle gear, and a first output shaft 38 and a second output shaft 39 are thereby rotated in the opposite directions, so that the valve plates 52, 53 are opened/closed in reverse proportion in the opposite directions. Two kinds of fluids can be thereby mixed at the specified ratio by one valve. As a result, the number of valves is reduced so as to have cost-reducing and energy- saving effect.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a submersible valve device suitable for mixing two fluids.

[0002]

2. Description of the Related Art Conventionally, an underwater valve device in which the entire valve device is immersed in water for use has been widely used. To give a specific example, in an air conditioner that uses a heat storage tank, the amount of heat pumped from the low temperature side and high temperature side of the heat storage tank is adjusted to control the temperature of the heat medium (heater in the case of heating, in the case of cooling). In some cases, the submersible valve device is installed in the heat storage tank in a submerged state. However, since the entire valve device is submerged in water, not only the valve plate drive shaft and cable penetrate the base of the drive unit, but also the partition plate as a piston to prevent water from entering the drive unit of the valve plate. Since it is assembled to a compressed air chamber and a leak sensor is attached, it takes time to manufacture the valve device.
It was inevitable that it would be expensive.

[0003]

SUMMARY OF THE INVENTION In order to solve the above-mentioned drawbacks, the present invention provides a submersible valve device in which two valve plates, which open and close in inverse proportion to each other, are arranged in a valve body. .

[0004]

[Operation] In the submersible valve device of the present invention, since two valve plates are opened and closed in inverse proportion, two kinds of fluids, for example, the high temperature medium and the low temperature medium in the heat storage tank are mixed at a predetermined ratio. Cost reduction by reducing the number of valve devices,
It is effective in saving energy.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The submersible valve device 10 of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view of a part of the submersible valve device 10, FIG. 2 is a view of FIG. FIG. 3 is an explanatory view of a valve plate portion, in which the submersible valve device 10 includes a drive unit 20 and a valve body unit 50, and two valve plates 5 are provided on both sides of a valve body 51.
2, 53 are arranged to control the flow of two kinds of fluids as shown by arrows. FIG. 4 is a diagram showing the drive unit 20 as seen from the direction of FIG. 1, and FIG. 5 is a diagram similarly seen from the direction of FIG.
Reference numeral 21 is a cover for the drive unit, 22 is a motor for driving the valve plate,
23 is a position limit switch, 24 is a potentiometer for valve opening feedback, 25 is an overload limit switch, 26 is a motor temperature sensor, 27 is a deceleration mechanism case, 28 is a terminal block, 29 is a cable bundle, and 30 is an individual Shows the cable. 38 is a first output shaft that drives one of the valve plates, 39 is a second output shaft that drives the other valve plate,
43 is a base of a drive part, 35 is a ground of the penetration part of the cable bundle 29, 41 and 42 are the grounds of the penetration parts of the output shafts 38 and 39, respectively.

Reference numerals 44 and 45 are partition plates, and if they are mounted as pistons on the base 43 as shown in the figure, the air pressure between the partition plates and the base rises, and the pressurized air chamber 36 (cable penetrating portion) and the pressurized air chamber, respectively. Air chamber 40 (output shaft penetration part)
Form and prevent flooding. Reference numeral 37 is a water leak sensor, which is installed in the pressurized air chamber and is applied with a low voltage. When water enters, an electric current flows to detect the water leak. In the figure, the chain double-dashed line W indicates the permissible inundation position, and the terminal block 2
8, the position limit switch 23, the valve opening potentiometer 24, the overload limit switch 25, the motor temperature sensor 26, the motor 22, etc. are located above this allowable water surface. 46 is a seal ring disposed on each contact surface. FIG. 6 is a plan view of the valve plate drive means, and FIG. 7 is a side view of the valve plate drive means. The gear 33 and the second interlocking gear 34 mesh with the idle gear 32. The first output shaft 38 is attached to the first interlocking gear 33, and the second output shaft 39 is attached to the second interlocking gear 34. Reference numeral 47 denotes a motor room water leakage sensor.

When the electric motor gear 31 is driven by the motor 22, the first interlocking gear 33 and the second interlocking gear 34 rotate in opposite directions via the idle gear 32, so that the first interlocking gear 33 rotates.
Since the output shaft 38 and the second output shaft 39 rotate in opposite directions, the valve plates 52 and 53 open and close in opposite directions in inverse proportion.
FIG. 8 is a side view showing the valve main body 51 taken out, and FIG. 9 is a side view similarly seen from the R direction. 38 and 39 are output shafts, 59 is a yoke, 60 is a joint, 61 is a gland, and 62 is a bush. , 52 and 53 are valve plates, 54 is a seat ring, 55 is a bottom cover, 56 is a gasket, 57 is a bolt, and 58 is a spring washer. (Fig. 1
Fig. 10 shows the open / closed state of the valve plate by the locus of movement of the valve plate in steps of 20%. If one moves from fully closed to fully open, the other moves inversely from fully open to fully closed, indicated by an arrow. As shown, the two fluids from both are mixed at a predetermined ratio, and the discharge pipe 6
It acts to make it flow toward 2.

[0008]

The submersible valve of the present invention is constructed as described above, and since one valve can mix two kinds of fluids at a predetermined ratio, the number of valves can be reduced, and the cost and energy can be saved. Produce an effect.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a part of a valve device.

FIG. 2 is a diagram of FIG. 1 viewed from the R direction.

FIG. 3 is an explanatory view of a valve plate portion.

FIG. 4 is a diagram showing a driving unit.

5 is a side view of FIG.

FIG. 6 is a plan view of the valve plate driving means.

FIG. 7 is a side view of the valve plate driving means.

FIG. 8 is a view showing a valve body.

9 is a view of FIG. 8 viewed from the R direction.

FIG. 10 is an explanatory view of the opening / closing state of the valve plate.

[Explanation of symbols]

 10 Submersible valve device 20 Drive part 21 Cover 22 Motor 23 Position limit switch 24 Valve opening feedback potentiometer 25 Overload limit switch 26 Motor temperature sensor 27 Reduction mechanism case 28 Terminal block 29 Cable bundle 30 Cable 31 Electric motor gear 32 Idle Gear 33 First interlocking gear 34 Second interlocking gear 35 Cable gland 36 Pressured air chamber 37 Water leak sensor 38 First output shaft 39 Second output shaft 40 Pressured air chamber 41 Output shaft gland 42 Output shaft gland 43 Base 44 Partition plate 45 Separator plate 46 Seal ring 50 Valve body 51 Valve body 52 Valve plate 53 Valve plate 54 Seat ring 55 Bottom plate 56 Gasket 57 Bolt 58 Spring washer 59 Yoke 60 Joint 61 Gland 62 Bush 63 discharge pipe

Claims (1)

[Claims] 1. A valve plate drive shaft, a cable, etc. in a base, wherein a valve plate drive motor is surrounded by a cover and a base to form a drive unit, and a valve device including a valve body unit and a drive unit is submerged and used. In order to prevent water from penetrating from the penetrating part of the submersible valve, the partition plate is assembled to the base as a piston to form a pressured air chamber. An underwater valve device for mixing two kinds of fluids, which is provided with a single valve plate.