JP2802462B2 - Flow spectroscope - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a state of flow of a fluid,
Alternatively, the present invention relates to a flow spectroscope for checking whether a flowing fluid amount is large or small. Flow spectroscopy, for example,
It can also be attached to a cooling water pipe to check whether an appropriate amount of cooling water is being supplied or not.

[0002]

2. Description of the Related Art An example of a flow spectroscope is disclosed in Japanese Patent Laid-Open No. 57-161.
No. 398. This has a cylindrical transparent body made of tempered glass, which is fixed to the valve housing so that the inside can be seen through, and a valve seat with a valve hole, and a ball valve is arranged on the valve seat so as to be detachable and seatable. The movement of the ball valve caused by the flow of the fluid is inspected through a cylindrical transparent body made of tempered glass surrounding the movement.

[0003]

In the above conventional apparatus, the presence or absence of a flow or the approximate size of the fluid amount can be confirmed by inspecting the movement of the ball valve.
There has been a problem that the tempered glass as a transparent body wears away at an early stage and the fluid is spouted in some cases.
The ejection of the fluid can cause environmental pollution or, in the case of toxic hazardous fluids, also harm humans. The wear-reduction of the tempered glass as the transparent body is mainly caused by the flow of the ball valve by the fluid. In other words, the pressure of the fluid flowing down the inside of the speculum is generally high, the flow velocity is fast, and the movement of the ball valve is also severe. .

Accordingly, a technical problem of the present invention is that it is possible to inspect the flow state of the fluid flowing inside the pipe, that is, to check the presence / absence of the flow or the magnitude of the flow rate, and to reduce the wear of the transparent member. There is no safe flow spectrometer to get.

[0005]

Means for Solving the Problems The technical means of the present invention taken to solve the above technical problem is to form an entrance, an examination room and an exit in the case of the speculum, and to see through the inside of the examination room. In this embodiment, a vortex generator is mounted in the examination room, and a flapper member having one end swingably mounted is disposed downstream of the vortex generator.

[0006]

[Function] By arranging a vortex generator and a swingable flapper member inside the examination room via a transparent member, a vortex is generated in the vortex generator according to the flow amount of the fluid, and the vortex is generated downstream. It reaches the flapper member and swings the flapper member. Since the number of vortices generated is almost proportional to the flow rate, the swinging state of the flapper member is also almost proportional to the flow rate. By visually observing this swinging state from outside through a transparent member, the presence or absence of flow and the flow rate The size of the can be confirmed. Since the one end of the flapper member is swingably mounted, the flapper member does not come into contact with or collide with the transparent member even if it swings due to the flow, so that the transparent member does not lose its thickness.

[0007]

An embodiment showing a specific example of the present invention will be described (see FIG. 1). FIG. 1 is a diagram showing a state in which a flow spectroscope of the present invention is cut off from above, and is viewed from above. A main body 4 having an entrance 1 and an exit 2 and an examination room 3 is provided. The fixing members 7 and 8 for fixing the disc-shaped transparent bodies 5 and 6 made of tempered glass as above form casing of the spectroscope.

[0008] The vortex generator 9 is mounted inside the examination room 3. The vortex generator 9 has a trapezoidal cross section. The inlet 1 side is formed wider than the outlet 2 side, and the upper and lower portions are fixedly mounted inside the main body 4. A flapper member 10 is disposed downstream of the vortex generator 9. The flapper member 10 is formed of a rectangular plate member, and is swingably attached to a shaft 11 provided immediately behind the vortex generator 9. The shaft portion 11 is fixedly attached to the inside of the main body 4, and one end of the flapper member 10 is attached to the outer periphery so as to be vertically swingable in FIG. Accordingly, the outlet 2 side end 12 of the flapper member 10 can swing up and down.

Next, the operation will be described. The fluid flowing from the inlet 1 generates a vortex in proportion to the flow rate at the vortex generator 9 and flows down to the flapper member 10 to flow to the flapper member 1.
The zero end 12 is swung. The proportional relationship is established between the number of generated vortices and the flow rate. Therefore, since the swing state of the flapper member 10 and the flow rate are also substantially proportional, the swing state of the flapper member 10 is changed to the disk-shaped transparent member 5. , 6, the size of the flow rate can be confirmed together with the presence or absence of the fluid.

Although the flapper member 10 swings in accordance with the flow rate, it does not come into contact with or collide with the disk-shaped transparent members 5 and 6 made of tempered glass. , 6 are not worn away.

[0011]

The present invention has the following specific effects. As described above, according to the present invention, the presence or absence of the flow or the magnitude of the flow rate is confirmed by swinging the flapper member by the vortex generated according to the flow rate.
A safe flow spectrometer can be obtained without the members contacting or colliding with each other, and without abrasion loss of the transparent member.

[Brief description of the drawings]

FIG. 1 is a top sectional view of an embodiment of a flow spectroscope according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Inlet 2 Outlet 3 Examination room 5,6 Disc-shaped transparent body 9 Vortex generator 10 Flapper member

Claims (1)

(57) [Claims] A vortex generator is formed in an examination room, wherein an entrance, an examination room, and an exit are formed in an observation device casing, and a transparent member that can see through the interior of the examination room is fixed. A flow spectroscope having a flapper member with one end swingably mounted on the downstream side.