JPS6285822A - Measuring supply equipment for power fluid - Google Patents

Abstract

PURPOSE:To perform sampling under lower pressure than main pipe pressure by fitting a piston slidably and airtightly in a cylinder hole penetrating a cylinder body vertically and moving it up and down with a pin. CONSTITUTION:The cylinder hole 3 is formed penetrating the cylinder body 2 in its center and the piston 2' is fitted slidably and airtightly. Then, a surface groove or groove hole is bored in the pin 2' so that it does not jump out of the cylinder hole 3, and fixed with the pin 14 so that the piston moves forth and back in the cylinder hole 3. Then, the piston 2' serves as the plunger of a reciprocating pump and when this piston 2' is so formed that the capacity of the cylinder hole 3 is, for example, 1cc, quantitative discharge of 1cc becomes possible. Then, when a motor 10 which is controllable in shaft speed is connected to a shaft rod 17 through a worm wheel 9 and rotated, the fluid at an entrance 1 is discharged from an exit 1' while put in the cylinder hole 3. Consequently, sampling is possible at pressure lower than the main pipe pressure.

Description

[Detailed description of the invention] (a) Industrial application field The present invention is capable of supplying powder, liquid, gas, etc. under pressure or atmospheric pressure to a certain number of companies, or collecting a certain amount of it as a sample. , powder catalyst, etc. in a chemical reactor,
The present invention relates to a metering and feeding device for powder fluid that can be quantitatively fed to a mixer, an agitator, etc.

(b) Conventional technology As conventional technology, typical means in this field are:
Examples include a metering cylinder type and a metering pump type, both of which are methods for discharging a fixed amount by power.

These metered doses are metered doses due to externally generated pressure by cylinders or pumps.

(→ Problems to be Solved by the Invention Recently, there has been a strong demand for this kind of quantitative supply, especially for sample collection, etc. However, the conventional sampling using metering cylinders and pumps requires a pressure higher than that of the main pipe for sampling. Therefore, from a safety standpoint, it is necessary to install auxiliary equipment to lower the pressure than the main pipe, which complicates the equipment and creates a heavy economic burden. There is a need to simplify the equipment and reduce the economic burden.

2) Means to solve the problem The means to solve the above problem is to transfer the fluid quantitatively by using the pressure of the main pipe. At least one of a plurality of measuring cup means provided on the circumference of the surface of the cylindrical body that does not penetrate the piston; A means is provided to constitute a metering and supplying device for powder fluid.

(e) Example Hereinafter, the metering and feeding device of the present invention will be explained with reference to the drawings. FIGS. 1 to 6 show one embodiment of the invention, in which a shaft 17.1 is attached to the body 16 as shown in FIG.
Bearings 4.4' are fitted and fixed to both ends of the cylindrical body 2 having 7' respectively, and one end thereof is fitted with a packing washer 5.0 ring 6, a gland 8, and the other end is fitted with an O-ring 6'. It is hermetically sealed and rotatably assembled by a gland 7 which also serves as a bearing.

A cylinder hole 3 penetrating through the center of the cylindrical body 2 is machined,
A piston 2'' is slidably and airtightly fitted.To prevent the piston 2' from protruding from the cylinder hole 3, the piston 2' is fitted with a piston 2' as shown in Fig. 3 (ah (bl)). A piston 15 or slot 15' is machined and is fixed by a pin 14 so that it can reciprocate within the cylinder hole 3.This piston 2' serves as a plunger of a reciprocating pump, and is fixed to the cylinder hole 3 by a pin 14. If a piston 2' with a length such that the capacity of 3 is, for example, ice is fitted, a fixed amount of 1 cc can be discharged.Next, coaxial speed control is possible on the shaft rod 17 as shown in Fig. 1. When the motor 10 is connected via the worm wheel 9 and rotated, the inlet 1
The fluid remains in the cylinder hole 3 and is discharged from the outlet 1'.

If the cross-sectional area of the piston 2' is 1c+/, the discharge pressure is the pressure of the main pipe.

If the metering and supplying device is attached to the bottom of an open container filled with liquid and rotated, the liquid can be metered out.

Next, FIGS. 4(a) and 4(b) show an example of metered discharge every 180 degree rotation, FIG. 5 shows an example of metered discharge every 90 degree rotation, and FIG. 6 shows an example of double metered discharge every 180 degrees.

FIG. 7 shows a device for measuring and taking out powder according to another embodiment, in which a non-penetrating measuring cup 11 is machined on the circumference of the surface of the cylindrical body 2.

This cup is shaped like a cock, and the fluid on the upstream side is drawn up by this cup and transferred by a certain amount to the downstream side.

With this method, it is possible to move powders, liquids, and gases in fixed amounts, but depending on the type of fluid, there are various types of fluids such as those with viscosity and gases, so a valve like the one shown in Figure 1 is used.
It is forcibly discharged by the pressure of the main pipe according to the principle shown in Fig. 2. Even when sampling automatically according to the main pipe flow rate, proportional control of the rotation speed of the motor connected to the cylinder and the main pipe flow rate makes it possible to sample according to the flow rate, and also by counting the motor rotation speed. Can you find out the current amount of sample collected?

It can also be used for powders or fluids with no viscosity.

In addition, in consideration of powder adhering to the bottom of the measuring cup 11, a dispersing blow-off device 12 having an air nozzle 13 is installed, which blows compressed air into the cup in synchronization with the discharge of the measuring cup 11. It is designed to be cleaned every time the cup is rotated to the outlet 1.

It can also be used for quantitative determination and injection of granular catalysts, but it may also be necessary to combine it with dispersion and blow-off using nitrogen.

FIG. 8 shows still another embodiment, in which a piston 2' is slidably and airtightly fitted into a cylinder hole 3 penetrating perpendicularly to the cylindrical body 2, and is configured to be movable up and down with a pin 14. A plurality of non-penetrating measuring cups 11 are provided on the surface circumference at different positions in the axial direction.

(F) Operation Next, the principle of metering and dispensing for one purchase shown in FIG. 1 will be explained with reference to FIG. 2. As shown in Figure 2(a), the fluid enters the inlet 1.
When the cylinder hole 3 reaches the inlet 1 and the cylinder hole 3 matches the inlet 1, the fluid flows into the cylinder hole 3, and when the cylindrical body 2 rotates in the direction of the arrow, the fluid is sealed and flows into the outlet 1 as shown in FIG. 2 (1)). ', and as shown in Fig. 2 (0), the fluid in the inlet 1 flows into the cylinder hole 3 naturally positioned on the opposite side of the piston 2', pushing the piston 2' by the inlet pressure, and as shown in Fig. 2 (0). (al), and the fluid sealed in the cylinder hole 3 is completely discharged to the outlet 1'.

At this time, the cylinder hole 3 is already filled with the fluid at the inlet 1.

The dosing device according to the invention can be used in various ways depending on the amount of sample taken.

For example, when adjusting the sample collection amount according to the main pipe flow rate, by proportionally controlling the main pipe flow rate and the rotation speed of the motor 10, if the main pipe flow rate increases, the motor 100 rotation speed will also increase, and the discharge volume will inevitably increase. If the main pipe flow rate is small, the rotational speed will also be small and the discharge amount will also be reduced.

(g) Effects of the Invention Since the present invention is constructed as described above, sampling is performed at a pressure lower than the main pipe pressure, completely ensuring operational and safety safety, and further simplifying instrumentation equipment. It has extremely excellent performance in terms of safety and economy, such as a large economic effect.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view showing the configuration of an embodiment of the present invention, Fig. 2 (a) (b) tc> is a cross-sectional view showing the operating state of the same essential parts, and Fig. 3 (al (bl indicates the piston). 4(a) and 4(b) are cross-sectional views showing the operating state of the main parts of an example configured to dispense a metered amount every 180 degrees, and FIG. 5 shows the operation of important parts of an example configured to dispense a metered amount every 90 degrees. Sectional view showing the state, No. 6
The figure is a cross-sectional view showing the operating state of the main parts of an example configured for double-discharge metering every 180 degrees, Fig. 7 is a cross-sectional view of the main parts showing another embodiment, and Fig. 8 is a main part showing still another embodiment. FIG. Figure 1 Figure 2 (0) (b) (C) (
. ) Figure 4 (1) Figure 5 Figure 6 Figure 8

Claims (2)

[Claims] (1) In a device that supplies powder or fluid into the device under pressure or atmospheric pressure, a piston is slidably and airtightly fitted into a cylinder hole that penetrates perpendicularly to a cylindrical body, and can be moved up and down with a pin. A powder fluid metering and supplying device comprising at least one of a plurality of non-penetrating measuring cup means provided on the circumference of the surface of the cylindrical body. (2) Claim No. 1 (2) characterized in that a gas dispersion blow-off device is provided on the outlet side of the measuring cup means.
1) The powder fluid metering and feeding device described in item 1).