JPS59197823A - Flow state monitoring device - Google Patents

Abstract

PURPOSE:To grasp safely a flow state of a fluid in a pipe from the outside of the pipe, and also to prevent a counter flow of the fluid by supporting freely a floating plate opposed to an inlet of a fluid by a supporting shaft in the inside of a partition wall plate, and providing an indicating tool operating with the floating plate on the supporting shaft in an interval part between the partition wall plate and the window glass. CONSTITUTION:A stainless steel partition wall plate 6 is provided on the inside of a window glass 4, and in the inside of the partition wall plate 6, a stainless steel floating plate 7 opposed to a fluid inlet 2 is made droop by a supporting shaft 8 and supported so as to be freely rockable. In a state that the floating plate 7 is made droop vertically, the floating plate 7 is opposed to the fluid inlet 2, contacts tightly with it, and closes said inlet 2 to a non-return state. When a steam trap opens a valve and the discharge of a drain is started, the floating plate 7 is opened in accordance with the drain quantity, and when discharge of the drain is stopped, the floating plate 7 is closed, and when the trap is in a leakage state, the floating plate 7 is always rocking small. Such an operation of the inside of a machine case 1 can be monitored and grasped from the outside of the machine case 1 by an indicating tool 9 operating and oscillating together with the floating plate 7 through the supporting shaft 8 and its extended part 8a of the floating plate 7.

Description

Detailed Description of the Invention The present invention provides fluid inlets and outlets at both ends of the machine, and
B1) In a fluid operation monitoring device provided with a monitoring window crow, a partition plate is provided inside the monitoring window crow, and a floating plate facing the fluid inlet is freely supported inside the partition plate by a support shaft. This device relates to a flow condition monitoring device which has an indicator mounted on a support shaft that operates in conjunction with the floating plate in the gap between a partition plate and a window glass, and is used to safely monitor the flow condition of fluid inside a pipe from outside the tube. This is intended to prevent backflow of fluid.

To explain the embodiment of the present invention shown in the drawings, fluid inlet/outlet pipes 2a, 3a are connected to both ends of a plate surface 1 made of gunmetal casting,
The other end of the fluid inlet pipe 2a is connected to the train outlet of the steam trap. And fluid inlet/outlet 2.3 is inside the same plate surface 1.
A fluid operation monitoring device 5 is formed by opening 1 and providing an internal monitoring window 4a on the same plate surface 1, and fitting a window glass 4 into the same window 4a.

In this fluid operation monitoring device 5, a stainless steel partition plate 6 is provided inside the window glass 4, and a stainless steel M moving plate 7 facing the fluid inlet 2 is suspended by a support shaft 8 and oscillated inside the partition plate 6. Support freely. When the floating plate 7 is vertically suspended, the floating plate 7 comes into contact with the fluid valve 2, thereby closing the I-coat 2 in a proper state. In the gap between the partition wall plate 6 and the window glass 4, a steel indicator 9 is provided on the extending portion 8a of the support shaft 8 of the floating plate 7, which moves in conjunction with the swinging of the floating plate 7. The pointing tool 9 only needs to have a finger recess 1 provided in the extension part 8a as shown in FIGS. 1 and 2. Note that the reference numeral 10 in the figure is a swing angle scale.

Therefore, when the steam trap opens and discharge of condensate begins, the floating plate 7 opens in response to the drain, and when the discharge of the drain stops, the floating plate 7 closes, and the trap and drain are closed (411).
When there is a leakage state, the floating plate 7 constantly moves by a small amount. Such internal movement of the plate surface 1 is controlled by the indicator 9 which swings in cooperation with the floating plate 7 via the support 1IIh 8 and the extension part 8a of the floating plate 7. It is possible to monitor and understand this from ":1;. Also, the fluid output <
When the drain that has entered p 3 a flows back into the inside of the plate surface 1, the floating plate 7 protects the fluid population 2 as shown in FIG. 3 and prevents the back flow to the fluid inlet 2. Further, the swinging of the indicator 9 can be sensed by a photomicrosensor provided for each swing angle scale 14, and remote centralized management can be performed.

Conventionally, since the operation of the floating plate 7 was monitored directly from the window glass 4, corrosion occurred on the inner surface of the window glass 4, and if there was an imbalance in thickness or cracks, the window glass 4 was inspected. The glass was easily broken, and there was a risk that the high-pressure steam inside would blow out, and it was difficult to safely check the flow state of the high-pressure gas inside from outside the pipe. Further, in order to prevent backflow to the fluid inlet 2, it was necessary to provide a check valve on the discharge side.

The present invention has been made in view of the above-mentioned defects, and the present invention is directed to the following: ``A fluid such as high-pressure tea vapor passing through the inside of the plate surface 1 in a double series from the outside of the plate surface 1 or the fluid inlet/output pipes 2a, 3a. This has the effect of not only being able to safely and reliably check 4R with the naked eye or a sensor, but also preventing backflow to the fluid 2 without separately providing a check valve.

41/1's flT Funeral Explanation No. 11 Δ is a front view showing the flow condition monitoring neck of the present invention 1,
Figure 2 is a longitudinal cross-sectional view taken along line A-A in Figure 1, and Figure 3 is a longitudinal cross-sectional view taken along line A-A in Figure 1.
It is a longitudinal cross-sectional view taken along the line B-B in the figure.

1. Plate surface, 2. 3. Fluid inlet/outlet, 4. Internal monitoring window glass, 5. Fluid operation monitoring equipment, 6. Bulkhead plate, 7.
・Floating plate, 8. Support shaft, 9. Indicator.

patent applicant Ko Hayashi Taketo

Claims (1)

[Claims] 1) Fluid operation in which a fluid inlet/outlet 2.3 is provided at rrtU☆H7H of the sand pile 1, and an internal monitoring window glass 4 of the sand pile 1 is provided! In the 'ill vision device 5, a partition plate 6 is provided on the inside r:)+ of the monitoring window glass 4, and a floating plate 7 facing the fluid person [-12 is supported by a support shaft 8 inside the partition plate 6. death,
The floating plate 7 is located in the gap between the partition wall plate 6 and the window glass 4.
A fluid state y in which an indicator 9 that cooperates with the support shaft 8 is provided;
Monitoring equipment. 2) The flow state monitoring device according to claim 1, wherein the indicating device 9 that moves together is a finger t provided on the extension L of the support shaft 8 of the floating plate 7.