JPH0129538Y2 - - Google Patents

Description

[Detailed description of the invention] (Target of the invention, industrial application field) The present invention relates to a gas measuring device that measures the amount of gas generated by combustion, etc., or measures and extracts a certain amount from a large amount of gas. Used in cases etc.

(Prior art) Conventionally, in order to measure the volume of a small amount of gas, a container such as a graduated beaker or measuring cylinder is placed upside down in water, the gas to be measured is injected from below, and the water level in the container is lowered. A method is used in which the volume of the gas is measured by reading it on a scale. However, according to this conventional method, these containers are held in a fixed position underwater, a hose for injecting gas is held below the container, and water is poured into the container each time a measurement is made. All filling is done manually, which requires multiple people and a lot of effort.

(Purpose of the invention) The present invention was made in view of the above-mentioned circumstances, and aims to provide a gas measuring device with a simple structure that can measure the volume of gas with simple operation. .

(Structure of the invention) The present invention includes a liquid container in which liquid is stored at a constant level, and at least the peripheral side and ceiling surface are sealed, the peripheral side is marked with a scale in the height direction, and the liquid container near the bottom surface is sealed. includes a measuring container provided with a gas inlet and a liquid inlet/outlet, and a rotatable support for the measuring container within the liquid container, and a 90° angle from the upright state to the measuring container.
and a holding device for holding the measuring container in a tilted state more than 100 degrees, and in the liquid container, the measuring container is immersed in the liquid in the tilted state, and at least the gas inlet and the liquid inlet and outlet are immersed in the liquid in the upright state. This is a gas metering device in which liquid is stored at such a liquid level.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

In FIG. 1, water W at a constant level is stored in a liquid container 1, and a measuring container 2 is held upright within this liquid container 1. The measuring container 2 has a hollow quadrangular prism shape surrounded by a ceiling surface 2a, a circumferential surface 2b, and a bottom surface 2c, and is made of a transparent material such as glass or plastic. A scale 2d is attached to the circumferential side surface 2b in the height direction, and liquid supply/discharge ports 3, 3 communicating with the inside and outside of the measuring container 2 and a flexible tube 4 are provided at the lower end of the circumferential side surface 2b. A connected gas inlet 5 is provided. The liquid supply/discharge port 3 may be provided on the bottom surface 2c, or the bottom surface 2c may be left open.

Regarding the holding device 6 that holds the measuring container 2, the second
This will be explained with reference to the drawings. Wall surface 1 of liquid container 1
The upper edge of a is crowned with a fixture 7 having a U-shaped cross section, and a support 9 having a connecting portion 8 is attached to the inner surface of the fixture 7. At the lower end of the support 9,
A band portion 10 wrapped around the circumferential side surface 2b of the measuring container 2
One end of an arm 11 having a diameter is rotatably supported by a support shaft 12, and this arm 11 is supported by a stopper member 13 provided on the support 9.
The rotation angle is regulated by a and 13b,
This moves the measuring container 2 from its upright position approximately 95
It is held so that it can rotate up to a tilted position.

The fixture 7 has a support shaft 14a protruding from the fixture 7.
The lever 14 is rotatably supported by the lever 14, and pins 15a and 15b are provided for regulating the rotation angle of the lever 14. A tension spring 16 is provided between the lever 14 and the arm 11.
When the lever 14 is rotated to the left in FIG. 1, the arm 11 is also rotated to the left by the tension spring 16, and the measuring container 2 is tilted as shown by the dashed line. Become. When the lever 14 is returned to its original position from this tilted state, it becomes an upright state as shown by the solid line. Note that the weighing container 2 is stable in the upright state and in the tilted state because the weight of the weighing container 2 and the arm 11 causes the arm 11 to move toward the stopper member 1.
This is because it comes into contact with 3a and 13b.

The water W in the liquid container 1 is stored at such a level that the measuring container 2 is submerged in water when it is in a tilted state, and the gas supply port 5 and liquid supply/discharge port 3 are submerged in water when it is in an upright state.

In the gas metering device configured as described above, when the lever 14 is rotated to the left in FIG. Let arm 11
stops at the position where it contacts the stopper member 13b,
The measuring container 2 is in a tilted state as shown by the dashed line. In this tilted state, the liquid supply/discharge ports 3, 3
The inside of the measuring container 2 is filled with water.
Next, when the lever 14 is rotated to the right and returned to its original position, the measuring container 2 becomes full of water and in an upright state. In this state, when the gas to be measured is fed from the tube 4, the gas enters the measuring container 2 through the gas inlet 5, rises and accumulates on the ceiling surface 2a, while the water in the measuring container 2 becomes liquid. Supply/discharge port 3,
Go outside from 3. Once the gas supply is finished,
The volume of the gas is read on the scale 2d.
Thereafter, by repeating the above-described operation, the volume of gas can be easily measured any number of times.

Next, an embodiment in which a certain amount of air is measured and extracted will be described.

3 and 4, when the measuring container 2 is in an upright state, a light emitter 16a and a light receiver 1 are used to detect the water level inside the measuring container 2 from both sides of the circumferential side surface 2b.
A detector 16 consisting of a detector 6b is attached to a guide rod 17 fixedly provided to the liquid container 1 using a bracket 18 and a mounting screw 18a so as to be adjustable in the vertical direction. On the other hand, at the lower end of the measuring container 2, when the measuring container 2 is in a tilted state, a gas inlet 5 and a liquid inlet/outlet 3 are located at a lower position, and a gas outlet 19 and a liquid for detecting the presence or absence of liquid are located at an upper position. A surface sensor 20 is provided respectively. The gas inlet 5 is connected to a pump 21 for supplying air through a flexible tube 4, and the gas outlet 19 is connected to a pump 21 for supplying air through a flexible tube 22 and an electromagnetic shut-off valve 23. being guided to a place.

The control unit 24 receives an external activation signal, and
The pump 21 is started with the electromagnetic on-off valve 23 closed, and air enters the measuring container 2, causing the water level to drop.
When the detector detects the water level, the pump 21 is stopped and the measuring container 2 is tilted by operating the lever 14. When another activation signal is received from the outside, the electromagnetic on-off valve 23 is opened and the measuring container 2 is tilted. When the air in 2 is discharged and the liquid level sensor 20 detects a rise in the water level (that is, the completion of air discharge), the electromagnetic on-off valve 23
is configured to perform control to close the . Note that 17a is a guide for stabilizing the measuring container 2.

The configurations other than those described in FIGS. 3 and 4 are the same as those described in FIGS. 1 and 2, and therefore their description will be omitted. In this embodiment, when the lever 14 is operated to send a start signal to the control unit 24 with a push button switch (not shown) or the like while the measuring container 2 is full of water and in an upright position, the pump 2
1, air is pumped in, and when the water level reaches the position of the detector 16, the pump 21 stops. Next, when the lever 14 is operated to tilt the measuring container 2 and a start signal is sent to the control section 24 using another push button switch (not shown), the electromagnetic on-off valve 23 opens and the air is directed to a predetermined location. When the discharge is completed, the electromagnetic on-off valve 2 is activated by the signal from the liquid level sensor 20.
3 is closed.

In this embodiment, a photoelectric type was used as the detector 16, but ultrasonic, laser beam or
It is possible to use a method using lines or the like.

In the above-described embodiment, the measuring container 2 has a prismatic shape, but other shapes such as a cylindrical shape or a triangular prism shape may be used. Moreover, any combination of gas and liquid other than air and water is possible.

(Effects of the invention) According to the invention, the volume of gas can be measured with a simple operation, and since the structure is simple, the cost is low. It is also possible to extract a measured amount of gas.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and
FIG. 1 is a partially sectional front view of the gas metering device, FIG. 2 is an enlarged sectional view of the lever portion, FIG. 3 is a partial perspective view with a detector attached, and FIG. 4 is a block diagram thereof. 1...Liquid container, 1a...Wall surface, 2...Measuring container, 2
a...Ceiling surface, 2b...peripheral side, 2d...scale, 3...
Liquid supply/discharge port, 5... Gas supply port, 6... Holding device, 7
... Attachment, 9... Support, 11... Arm, 13a,
13b...Stopper member, 14...Lever, 16...Tension spring (connecting material), W...Water (liquid).

Claims (1)

[Scope of claims for utility model registration] (1) A liquid container in which liquid is stored at a certain level;
At least the circumferential side and the ceiling surface are sealed, and the circumferential side is scaled in the height direction, and the measuring container has a gas inlet and a liquid inlet and outlet near the bottom, and the inside of the liquid container. , a holding device rotatably supports the measuring container and holds the measuring container in an upright state or in a tilted state tilted by 90 degrees or more from the upright state, and the measuring container is in the liquid container. A gas metering device in which liquid is stored at a level such that the gas metering device is submerged in a tilted state and at least the gas inlet and the liquid inlet and outlet are submerged in an upright state. (2) The holding device includes a fitting that covers the upper edge of the wall of the liquid container, a support that is connected downwardly from the fitting, and one end of which is rotatably attached to the support. an arm whose other end is fixed to the measuring container, a stopper member that restricts rotation of the arm, a lever rotatably attached to the fixture, and a connecting member that connects the lever and the arm. A gas metering device according to claim 1 of the utility model registration claim.