JPS6319528A - Detecting device for small quantity of water leaked on floor - Google Patents

Abstract

PURPOSE:To detect the small quantity of water leaked on a floor by providing a ring on the flat perforated plate of a floor drain faucet. CONSTITUTION:This detecting device consists of an electrode type liquid level indicator 1, electrode rods 2, a floor drain faucet 3, a flat perforated plate 4, a ring 5, a side groove 6, and a bell trap 7. The ring 5 is fixed to the flat perforated plate 4. Water leaked on the floor is collected in the floor drain faucet 3 by the side groove 6, and it is accumulated in the side groove 6 by the ring 5 before flowing to the floor drain faucet 3, and the water surface is brought into contact with electrode rods 2 when the water level rises, and thus, even the small quantity of water leaked on the floor is detected by the electrode type liquid level indicator 1.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a method for detecting floor leakage water, and more particularly.

The present invention relates to a floor leakage water detection device that can detect even a small amount of floor leakage water when detecting floor leakage water in a nuclear power plant.

(Prior Art) Conventionally, as shown in FIG. 3, an electrode type liquid level gauge 1 is installed above a floor drain socket 3 having a belt trap 7.

However, if a small amount of water leaks from the floor.

Since the water is drained before the liquid level rises to the liquid level meter electrode 2, there is a problem that water leaking from the floor cannot be detected.

Alternatively, as shown in Fig. 4, a level meter electrode rod 2 is inserted into the floor drain port without a belt trap, and a small amount of floor leakage water is collected in the floor drain socket 3 and measured. However, it would be difficult to drain the water from the floor drain socket 3 after detecting floor leakage water and maintain the electrode type liquid level gauge 1, and it would be difficult to maintain the electrode type liquid level gauge 1 in the room where the floor leakage water is detected and the room where the drainage light is installed. There is a problem that airtightness cannot be achieved at the floor drain socket 3.

For this type of device, for example, the Revised Industrial Instrument Handbook VI
Fluid measurement C-electrode level gauge and piping handbook (3rd edition)
, 4.23 Internal drainage pipe equipment, 4.2.2 Combination of traps and vent pipe belt traps.

[Problem that the invention seeks to solve]

The conventional technology described above may not be able to detect a small amount of floor leakage water, or may be able to detect a small amount of floor leakage water, but may not be able to detect a small amount of floor leakage water. The maintenance of the water meter became difficult, and the room where water leaked from the floor was detected and the room where the water was leaking could no longer be airtight at the floor drain socket.

The purpose of the present invention is to facilitate the draining of floor leakage water after detection of floor leakage water, the maintenance of the electrode type liquid level gauge, and the airtightness of the room where floor leakage water is detected and the room where the drainage light is provided. To provide a method for detecting a small amount of water leaking from the floor using a floor drain socket.

[Means for solving problems]

The above purpose is that by installing a ring 5 on the perforated plate 4 of the floor drain socket 3, floor leakage water is collected in the side gutter 6 before flowing into the floor drain socket 3, and the liquid level rises. This is achieved by bringing the surface of the floor leakage water into contact with the electrode rod 2 of 1 and detecting a small amount of floor leakage water.

[Effect]

The ring 5 of the perforated plate 4 of the floor drain socket 3 prevents a small amount of floor leakage water from flowing into the floor drain socket 3 and collects it in the side gutter 6, so that even a small amount of floor leakage water can be used as an electrode type liquid level gauge. 1 can be detected.

In addition, since the perforated plate 4 with the ring 5 can be removed from the floor drain socket 3, the floor leakage water collected in the side gutter 6 after detection of floor leakage water can be drained, and the electrode type liquid level gauge 1 Since the electrode rod 2 is installed outside the floor drain socket 3, maintenance of the electrode type liquid level gauge 1 can be easily performed.

Furthermore, since the belt trap 7 can be installed at the floor drain socket 3, the floor drain socket 3 can be used to airtight the room for detecting floor leakage water and the room for the drainage light.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. Electrode type liquid level gauge 1. Electrode rod 2. Floor drain socket 3. Eye plate 4
．． Ring 5. Gutter6. Consists of belt wrap 7,
The ring 5 is fixed to the perforated plate 4. The floor leakage water is collected in the floor drain socket 3 through the side gutter 6, and collected in the side gutter 6 by the ring 5 before flowing into the floor drain socket 3. When the liquid level rises, it comes into contact with the electrode rod 2, and the floor leak water is detected. can.

According to this embodiment, the ring 5 placed in the perforated plate 4 allows floor leakage water to be collected in the gutter 6.
Even a small amount of floor leakage water can be detected by the electrode type liquid level gauge 1, and since the perforated plate 4 with the ring 5 installed can be removed from the floor drain socket 3, the floor leakage water collected in the side gutter 6 can be detected. Since the electrode rod 2 of the electrode type liquid level gauge 1 can be removed and installed outside the floor drain socket 3, maintenance of the electrode type liquid level gauge 1 can be easily performed. Since it can be installed, it is possible to airtight the room where floor leakage water is detected and the room where the drainage light is detected.

〔Effect of the invention〕

According to the present invention, the presence or absence of a small amount of floor leakage water can be detected, so monitoring within the nuclear power plant can be strengthened, and maintenance such as meter calibration can be performed with the electrode type liquid level gauge installed, so floor leakage water can be detected. The reliability of the equipment is improved.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a small amount of floor leakage water detector according to an embodiment of the present invention, Fig. 2 is a sectional view taken from the ■-■ arrow in Fig. 1, and Figs. FIG. 3 is a cross-sectional view of a water detector. Early? 3rd concave 2nd rrJ 4th concave

Claims (1)

[Claims] 1. A device for detecting a small amount of water leaking from the floor, characterized in that a ring is installed in the perforated plate of the floor drain socket when detecting water leaking from the floor.