JPH0118171Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a gas-liquid separation device used, for example, in a vacuum car. This invention relates to a gas-liquid separation device suitable for separating gas and liquid and making it suitable for flow rate measurement.

<Prior Art> Conventionally, when measuring the flow rate using a vacuum car for treating human waste, since the human waste contains gas, it is necessary to separate the gas and liquid prior to measurement. FIG. 2 is a schematic diagram of a vacuum car equipped with such a gas-liquid separation device. In the diagram, 1 is a vacuum tank, 2
This is a gas-liquid separation device for separating gas from human waste containing gas, and is composed of a gas-liquid separation tank 2a and pipes 2b and 2c provided above and below. The liquid flows through the lower pipe 2c, and the gas bypasses the upper pipe 2b. A flow meter 3 is attached to the pipe 2c, and the flow rate of human waste is measured by this.

4 is a hose reel for winding up the hose 5, 6 is a suction port, 7 is a suction port, 8 is a suction port valve, and 9 is an exhaust port.

As a gas-liquid separator, for example, there is one proposed by the present applicant in Utility Model Application No. 59-28873. Third
The figure is a sectional view showing such a gas-liquid separation device. The gas-liquid separation tank 2a is arranged inclined at a predetermined angle with respect to the vertical direction. Human waste A is introduced into the tank from the upper end of the tank through a pipe 10. A piping 2c is connected to the lower part of the gas-liquid separation tank 2a, and a piping 2b is connected to the upper part. A flow meter 3 is provided in the pipe 2c, and the pipe 2b
and is connected to the suction port 7. A spherical float 2d is placed on the surface of the human waste A in the gas-liquid separation tank 2a.

According to such a configuration, even if the port to the pipe 2c is blocked by contaminants contained in human waste, the float 2
When the liquid level rises, d closes the port to the pipe 2b, and the internal pressure increases, making it possible to remove the blockage. Moreover, when the inside of the gas-liquid separation tank 2a becomes full of gas, the float 2d closes the port to the pipe 2c,
Prevents gas from flowing in the direction of the pipe 2c. Furthermore, if there is fluctuation in the liquid level in the gas-liquid separation tank 2a, the float 2
This can be prevented by the inertia of d, and there is an advantage that the opening to the pipe 2c will not be opened to gas.

However, in such a device, when the gas-liquid separation tank 2a becomes full of gas, the float 2d closes the port to the pipe 2c, as shown in the cross-sectional view of FIG. When the human waste A was injected from the pipe 10 due to the condition, the solid matter in the human waste was sometimes deposited on the float 2d. That is, human waste A can normally be treated as a gas-liquid two-phase flow, but it sometimes contains solid matter. When the gas-liquid separation tank is filled with only gas, as at the start of work, if the first thing that flows in happens to contain a large amount of solids, the solids B will accumulate on the float 2d. Sometimes it happens. Once in this state, even if a large amount of liquid is subsequently injected, the float 2d will not float up easily, and the port to the lower pipe 2c will remain blocked.

In such a state, all of the human waste A flowing in through the pipe 10 flows out through the upper pipe 2b, making it impossible to measure using the flowmeter 3.

<Problem to be solved by the invention> The technical problem to be solved by the invention is that in the above-mentioned gas-liquid separator, solids contained in the fluid are, for example, on top of the float at the start of work. The goal is to prevent it from accumulating.

<Means for solving the problem> The configuration of the present invention is such that a gas-liquid separation tank is arranged inclined at a predetermined angle with respect to the vertical direction, and a pipe for bypassing gas is connected to the upper part of this gas-liquid separation tank. is,
In a gas-liquid separation device, a pipe having a flow meter provided in the middle of the pipe is connected to the lower part, and a float is arranged on the surface of the liquid containing gas led into the gas-liquid separation tank. When the mouth of the lower piping of the separation tank is closed by the float, the float and the inlet are connected so that an extension of the center line of the inlet for the gas-containing liquid passes through the lower half of the float. This is due to the fact that the positional relationship with the

<Operation> The technical means described above operates as follows. That is,
An extension of the center line of the inlet of the liquid containing gas passes through the lower half of the float, and when the gas-liquid separation tank is filled with only gas as at the start of work,
Even if a liquid containing solids is injected, the position where the solids adhere is in the lower half or the front of the float, and the solids are not deposited on the float to ensure that the float is I made it possible to levitate.

<Examples> Examples of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of an apparatus according to an embodiment of the present invention. In the figure, the same elements as those in FIGS. 3 and 4 are given the same reference numerals. 10' is a pipe connected to the end of the gas-liquid separation tank 2a, into which human waste A is injected through the inlet 2e. The dashed line C is the center line of the inlet 2e, and its extension line passes through the lower half of the float 2d.

When the gas-liquid separation tank 2a is filled with only gas, as at the start of work, the float 2d is in a state in which the port to the lower pipe 2c is closed, as shown in this figure. When human waste A is injected from the inlet 2e in this state, this liquid and the solids contained in this liquid draw an approximately parabola and reach the lower side surface of the gas-liquid separation tank 2a.
The parabola drawn at this time is determined by the weight of the liquid and solid materials and the velocity of the fluid at the inlet 2e, but these factors also depend on the capacity of the vacuum pump (not shown) and the liquid in the vacuum tank 1. It depends on the position, the resistance of the pipe from the inlet 2e to the lower pipe 2c, the ratio of gas and liquid in the gas-liquid two-phase flow, and the like. Therefore, it is not possible to specify which part of the gas-liquid separation tank 2A the solids contained in human waste A adhere to, but the extension line of the center line C of the inlet 2e is the float 2d.
If it passes through the lower half of the float 2d, the solid matter can be attached to the lower half of the float 2d or in front of it, and the solid matter B will not accumulate on the float 2d. do not have.

FIG. 5 is a sectional view of another embodiment of the device of the present invention. In the case of this figure, the float 2d passing through the lower piping 2c
The center line D of the inlet 2e and the center line C of the inlet 2e are substantially parallel, and the center line C passes below the center line D. Even with such a configuration, the solid matter B does not accumulate on the float 2d.

<Effects of the invention> According to the invention, when the gas-liquid separation tank 2a is empty, as at the start of work, the float 2d is in a state of blocking the opening to the lower pipe 2c. Even if a liquid containing solids is injected, the solids will not be deposited on the float 2d, so if a large amount of liquid is subsequently injected, the float 2d can float immediately and the lower piping Float the mouth to 2c 2
This prevents a situation where d is blocked and measurement becomes impossible.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of an embodiment of the device of the present invention, Fig. 2 is a schematic diagram showing a conventional vacuum car equipped with a gas-liquid separation device, Fig. 3 is a sectional view of a conventional vapor-liquid separation device, and Fig. 4 is a sectional view of a conventional vacuum car equipped with a gas-liquid separation device. This figure is a sectional view of a gas-liquid separation device for explaining the drawbacks of the device shown in FIG. 3, and FIG. 5 is a sectional view of another embodiment of the device of the present invention. 2... Gas-liquid separation device, 2a... Gas-liquid separation tank, 2
b... Upper piping, 2c... Lower piping, 2d... Float, 2e... Inlet, 10'... Piping into which the gas-liquid two-phase flow is injected via the inlet 2e, C... Inlet 2
Center line of e.

Claims (1)

[Scope of utility model registration request] A gas-liquid separation tank is arranged inclined at a predetermined angle with respect to the vertical direction, a pipe for bypassing the gas is connected to the upper part of the gas-liquid separation tank, and a pipe in which a flow meter is installed in the middle of the pipe is connected to the lower part. In a gas-liquid separation device in which a float is disposed on the surface of a liquid containing gas that is connected to the gas-liquid separation tank and led into the gas-liquid separation tank, an opening of a lower piping of the gas-liquid separation tank is blocked by the float. The gas-liquid is characterized in that the positional relationship between the float and the inlet is set such that when the float is separated, an extension of the center line of the inlet of the gas-containing liquid passes through the lower half of the float. Separation device.