JPS6315230Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a high-pressure gas discharge device that is attached to a storage container for powder and granules to promote outflow of the powder. In particular, it relates to a high-pressure gas discharge device that allows condensate, dirt, etc. to be easily discharged, reduces the discharge resistance of high-pressure gas, improves the outflow effect, has a structure that is easy to disassemble and assemble, is convenient for cleaning and inspection, and is inexpensive to manufacture and maintain. It is something.

When storing particulate materials in storage containers, silos, etc., especially when discharging this material after long-term storage, the material becomes clogged or stagnates, obstructing the flow and making it difficult to discharge. There is a problem. This problem can be solved to some extent by using vibrators and other mechanical devices, but these are not only expensive, but can also cause structural damage to storage containers, silos, etc., and human injury. It had the disadvantage of causing a disaster.

In order to solve this problem, devices have been devised in recent years that release high-pressure air into storage containers, silos, etc. to promote the outflow. However, this conventional device has a cylinder 2 and a piston 3 provided in a tank 1.
After the tank 1 is filled with a certain amount of high-pressure air, the air is instantly sent (injected) from the pipe 4 into the storage container 5 such as a silo by the action of the valve mechanism including the As shown in FIG. 2, it is fixed by welding to a powder storage container 5 such as a silo. As you can see from the diagram, this device
High pressure air from an external source is introduced into the cylinder 2 through an air supply hole 6 provided through the wall of the tank 1, and the piston is introduced through a relatively small hole 7 provided through the wall of the cylinder 2. 3 introduces high pressure air into the tank 1 and discharges it through the pipe 4 into a storage container 5 such as a silo.
Dust, oil, and moisture in the high-pressure air, as well as particles and other substances blown back from the storage container 5 such as the silo, can become clogged between the piston 3 and the small hole 7, or accumulate inside the tank 1, resulting in long-term use. The disadvantage is that the ventilation effect is reduced. Furthermore, since the various parts of this device are connected using welding, it is difficult to disassemble and reassemble for cleaning and inspection.

Another conventional device disclosed in Japanese Patent Publication No. 56-48001 shown in Fig. 3 is fixed to a storage container such as a silo by welding, so it can be installed at multiple locations when the storage container is large. In order to improve the high-pressure air supply system, we installed a tank 1 that constitutes a high-pressure air supply device, a valve mechanism for filling the tank 1 with high-pressure air, and supplying the filled air to a container such as a silo, and an exhaust system. The ventilation device 8 including pipes etc. is separated, and only the ventilation device 8 is fixed to the storage container 5 such as a silo,
The tank 1 is detachably attached to the ventilation device 8, and by selectively attaching the tank 1 to a required ventilation device 8, high-pressure air can be supplied to the required location. This device also causes damage to the tank 1 due to the above-mentioned dirt adhering between the head of the piston 3 and the valve seat in the valve mechanism.
This has the disadvantage of impairing airtightness with the piston, and since the compressed air flows from the supply source through the axial passage formed by the small hole 9 of the piston 3, it takes time to fill the piston, making it inconvenient for repeated use in a short period of time. Yes, if this passage is enlarged, the filling time will be faster, but piston 3
Another drawback is that a large amount of high-pressure air in the tank is wasted when the tank is opened, and the piston opens slowly.

In addition, conventional devices do not have cleaning or inspection ports on their containers, so they must comply with legal cleaning and inspection provisions.

The present invention solves the above-mentioned drawbacks of the conventional device, makes it easy to discharge drain and dirt, improves the outflow effect by reducing the discharge resistance of high-pressure gas, and is convenient for cleaning and inspection. The object of the present invention is to provide a device that is inexpensive to manufacture and maintain, and has a simplified air supply device from a high-pressure gas generation source.Examples of the present invention will be described below with reference to the drawings.

Fig. 4 is a longitudinal sectional side view of the embodiment of the present invention, Fig. 5 is a longitudinal sectional side view of the main part showing its discharge state, Fig. 6 is a longitudinal sectional side view of its intake section, and Fig. 7 is a storage of this embodiment. FIG. 8 is a side view of a partially cut hole attached to the container, and FIG. 8 is a sectional view illustrating the main parts of the relationship between the piston, the piston receiving ring, and the discharge hole.

This device has a structure in which a valve device member A and a tank member B are hermetically screwed together with a gasket 12 at flanges B10 and C11 using tightening bolts 13, and a three-way solenoid valve 16 is connected through an air supply pipe 15. The device is used by being connected to a high-pressure gas generation source 17 via the air conditioner.

As shown in detail in FIG. 5, in the valve device member A, one end 14-1 of the cylindrical valve cylinder 14 is opened as a discharge port 19, and a flange A20 is provided at this open end 14-1. It has a structure in which it is attached to the powder storage container 5 using the flange A20 or, if necessary, using a separate fitting. Outer surface middle 1 of valve cylinder 14
4-2 is provided with a flange B10.
The opening of the other end 14-3 of the valve cylinder 14 is closed by a piston stop plate 22, which is a closing plate, and a stop ring 23.
It is sealed airtight using a Valve cylinder 1
4 has an inclined surface 4 which is inclined around the upper part of the step 24 provided at intervals below the piston stop plate 22.
A ring-shaped piston receiving ring 25 having a diameter of 1 is fitted. Piston receiving ring 25 and piston stop plate 22
A piston 3 having an inclined surface 40 around its end portion is provided between the piston 3 and the piston 3 so as to be slidable on the inner surface of the valve cylinder 14 . The piston 3 is made of a resilient material such as rubber or polyethylene. On the other hand, the valve cylinder 14 is provided with a filling hole 26 and a discharge hole 27 passing through the side surface, and the filling hole 26 is filled with the piston 3 in contact with the piston receiving ring 25 as shown in FIGS. 4 and 8. It is provided at a position where the air chamber 50 of the space created on the lower surface of the closed end side of the valve cylinder 14 and the inside of the tank 1-1 are communicated by the action of the valve 30 when the valve cylinder 14 is closed. Valve 30 on the outside surface
is the air chamber 5 between the piston stop plate 22 and the piston 3
When high-pressure air flows into the tank 1-0 through the air supply pipe 15, which will be described later, the valve 30 opens at a predetermined pressure, and the high-pressure gas in the air chamber passes through the filling hole 26 to the tank 1-
1 and prevents gas from flowing back into the valve cylinder 14 from the tank 1-1. The discharge hole 27 is provided at the same position as the upper surface of the piston receiving ring 25, and as shown in FIG.
-1 and the open end side of the valve cylinder 14. When the piston 3 contacts the piston receiving ring 25, the piston 3 closes the discharge hole 27 and opens the filling hole 26, and when the piston 3 contacts the piston stop plate 22, the filling hole 26 is closed. The discharge hole 27 can be opened by pressing the discharge hole 27.

Further, an air supply hole 6 is provided passing through the center of the piston stop plate 22. An air supply pipe 15 is connected to this air supply hole 6 . The valve mounting seat 3 penetrates the wall surface of the tank 1 facing the valve cylinder 14 insertion part.
1 is provided in the center of the valve mounting seat 31,
As shown in FIG. 6, one end of the air supply pipe 15 communicating with the air supply hole 6 of the piston stop plate 22 is connected to an O-ring 3.
2, and a three-way solenoid valve 16 is attached to the outside of the tank 1 at the end thereof. The flange C11 is screwed onto the flange B10 together with the gasket 12 to hold the tank 1 airtight.

With the above structure, this device is attached to the side wall of the storage container 5 with a flange A20 as shown in FIG.
If necessary, the present device can be used by attaching the nozzle member 33 and connecting the three-way solenoid valve 16 and the high-pressure gas generation source 17 to the air supply pipe 15.

That is, the three-way solenoid valve 16 closes its external discharge port (not shown in detail) and allows the high-pressure gas generated by the high-pressure gas generation source 17 to flow into the air supply pipe 15, pass through the air supply hole 6 of the piston stop plate 22, and reach the upper surface of the piston 3. is pressed down until the piston 3 comes into contact with the piston receiving ring 25 to form an air chamber 50 in the upper part of the piston 3. When the piston 3 comes into contact with the piston receiving ring 25 and closes the discharge hole 27, and the pressure in the air chamber 50 reaches a predetermined pressure, the valve 30 is activated and high pressure gas is discharged from the filling hole 26 to the tank 1-1.
filled inside.

When it is necessary to release the high-pressure gas filled in the tank 1-1 into the powder storage container 5, the external discharge port of the three-way solenoid valve is opened, and the high-pressure gas in the air chamber is released. from air supply hole 6 to air supply pipe 1
It is released to the outside through 5. Even if the high pressure gas in this air chamber is released, the valve 30 will work, so tank 1-
The high pressure gas filled in the air chamber 1 does not enter the air chamber 50. When the pressure in the air chamber 50 decreases, the tank 1-1 is formed on the inclined surface 40 around the end of the piston 3.
The pressing force of the high-pressure gas inside acts to start the piston 3 in the direction of the piston stop plate 22, so when the subsequent flow of high-pressure gas toward the discharge port 19 rapidly flows on the lower surface of the piston 3, the piston 3 It moves to the lower surface of the stop plate 22 and no longer comes into contact with the piston receiving ring 25. Therefore, the high-pressure gas in the tank 1 is explosively discharged into the powder storage container 5 through the discharge hole 27, the inside of the piston receiving ring 25, and the discharge passage 19.

Next, the external discharge port of the three-way solenoid valve 16 is closed, and the tank 1 is filled with high-pressure gas in the process described above.
By opening the external discharge port of the three-way solenoid valve 16 again, high-pressure gas can be repeatedly discharged into the powder storage container 5 in a short time using the same process.

As explained in detail above, the present invention has a simple configuration, there is nothing in the discharge hole that obstructs the outflow of high-pressure gas from the tank, and the function is achieved by partially stagnation of powder and granules due to blowback. Therefore, it is expected that explosive discharge will be improved, and there will be little deterioration of the discharge capacity even after long-term use.Also, the valve device components and tank components, which are the main components, are separated. In addition, since the air supply path from the high-pressure gas supply source is provided through the tank member opposite to the insertion point of the valve device member, the air supply path is simplified, machining is easy, and pressing force can be applied to the piston easily. This has the effect that it is convenient for cleaning and inspection, and that it is possible to manufacture and maintain a legally legal structure at low cost.

[Brief explanation of the drawing]

Figures 1 and 2 are a vertical sectional side view of a conventional device and an explanatory view of how it is attached to a storage container, Figure 3 is a partially sectional side view of another conventional device, and Figure 4 is an illustration of an embodiment of the present invention. 5 is a vertical sectional side view of the main part showing the discharge state, FIG. 6 is a longitudinal sectional side view of the intake part, and FIG. 7 is a partially cutaway side view of this embodiment attached to a storage container. FIG. 8 is a sectional view illustrating the main parts of the relationship between the piston, the piston receiving ring, and the discharge hole. 1-1...Tank, 3...Piston, 5...Storage container, 6...Air supply hole, 10...Flange B, 1
1...Flange C, 14...Valve cylinder, 1
6...Three-way solenoid valve, 17...High pressure gas source, 2
0...Flange A, 22...Piston stop plate, 26
...Filling hole, 27...Discharge hole, 30...Valve,
31... Valve mounting seat, 40... Piston end slope,
41... Piston receiving ring upper surface end slope.

Claims (1)

[Claims for Utility Model Registration] Having an opening 1-2 and a flange C11 at the end,
Tank 1- with a valve mounting seat 31-1 at the other end
1, and the end 14-3 is closed by a piston stop plate 22 having a through hole 6 in the center, and the other end 14-1 is closed.
The valve cylinder 14 is provided with a discharge passage 19 that opens at the lower end 1 of the outer surface of the valve cylinder 14.
4-1 is provided with a flange A20 and a flange B10 is provided in the middle 14-2, and a piston receiving ring 25 having an inclined surface 41 inclined around the upper part is provided inside the valve cylinder 14 near the flange B10, and the piston stop plate 22 lower surface and piston receiving ring 2
A piston 3 is installed in the valve cylinder 14 and has an inclined surface 40 around the end thereof, and the piston 3 slides through a discharge hole 27 passing through a side surface of the valve cylinder 14. When the piston 3 contacts the upper surface of the piston receiving ring 25, the discharge hole 27 is closed. Similarly, when the piston 3 slides through the filling hole 26 and contacts the lower surface of the piston stop plate 22, the filling hole 26 is provided. A valve device member A, which is provided at a portion to be closed and is provided with a valve 30 on the outer surface of the valve cylinder 14 of the filling hole 26, which operates under a constant pressure and has a function of passing high-pressure gas only in one direction; and the piston. The air supply pipe 15 is formed by connecting the air supply hole 6 of the stop plate 22 and the valve mounting seat 31 of the valve mounting seat 31-1, and the opening 1-2 of the tank member B is connected to the air supply pipe 15 of the valve device member A. Insert the valve cylinder 14 and tighten the flange C.
11 and the flange B10 are hermetically connected by a screwing means 13, and the valve mounting seat 31 is connected to an external high-pressure gas generating means via a three-way solenoid valve 16. Promoting the outflow of powder and granular material. High pressure gas discharge device.