CN107747638A - A kind of U-shaped water seal arrangement - Google Patents

Abstract

The invention discloses a U-shaped water sealing device, which includes a water supply pipe, a U-shaped pipe, a horizontal water tank, and a water inlet pipe and a vertical water outlet pipe connected to the horizontal water tank; The high water level overflow pipe 15, the low water level overflow pipe 9 and the high water level overflow pipe 5 are connected in turn; the low water level overflow pipe is provided with an overflow valve and a first overflow port from left to right; The water level overflow pipe is provided with a second overflow port. The U-shaped water seal device of the present invention realizes normal and closed U-shaped pipes by changing the overflow height, and can judge whether the overflow valve of the water seal device is working normally through the water outlet conditions of the two overflow ports. Timely detection of device failures, elimination of potential safety hazards, simple structure and easy operation.

Description

A U-shaped water seal device

technical field

The invention relates to the technical field of metallurgical U-shaped pipe water seals, in particular to a U-shaped water seal device.

Background technique

The U-shaped water seal technology is simple, and it can be used as a reliable gas isolation measure when used together with a closed valve. At present, the isolation of the U-shaped pipe is controlled by controlling the switch state of the overflow valve; when the overflow valve is closed, the high level of the water seal overflows, the water seal section is filled with water, and the pipeline is effectively cut off; when the overflow valve is opened, the low position of the water seal Overflow, pipe flow. The working state of the overflow valve is crucial to the water seal of the pipeline. If the overflow valve leaks internally and the effective height of the water seal is lower than the gas pressure, the gas will break through the water seal and the gas will overflow.

Contents of the invention

In order to solve the above problems, the present invention proposes a U-shaped water seal device, which can observe and detect the working state of the overflow valve, detect device failures in time, eliminate potential safety hazards, and has a simple structure and easy operation.

In order to achieve the above object, the present invention adopts the following scheme, including: a U-shaped pipe; a water supply pipe connected to the left end of the U-shaped pipe, the water supply pipe is provided with a water supply valve and a bypass water supply pipe connected to both ends of the water supply valve valve; the water inlet pipe connected to the lower end of the U-shaped pipe, the water inlet pipe is provided with a water inlet valve; the horizontal water tank connected to the other end of the water inlet pipe; the vertical outlet pipe connected to the horizontal water tank water pipe; the vertical outlet pipe is connected with an outlet valve, a low water level overflow pipe and a high water level overflow pipe in sequence from low to high; the low water level overflow pipe is provided with an overflow valve and a first An overflow port; the high water level overflow pipe is provided with a second overflow port.

The water outlet end of the high water level overflow pipe of the present invention is connected to the low water level overflow pipe, and the end of the high water level overflow pipe is located between the overflow valve and the first overflow port; the low water level overflow The water outlet end of the pipe is connected with the drain pipe.

In the present invention, the water outlet end of the low water level overflow pipe and the water outlet end of the high water level overflow pipe can also be connected to the drain pipe.

Preferably, the height of the connection point between the replenishment pipe and the U-shaped pipe is the same as the height of the upper end of the high water level overflow pipe; when the device overflows at a high water level, it can ensure the water level in the U-shaped pipe under the water seal state and prevent the water seal from being broken down.

Preferably, the height of the low water level overflow pipe is smaller than that of the U-shaped pipe; when the device overflows at a low water level, the U-shaped pipe is completely unobstructed.

When working, keep the water inlet valve and water outlet valve normally open, close the water replenishment valve, open the water replenishment bypass valve, open the overflow valve, the U-shaped water seal device is low water level overflow, and the U-shaped pipe is unblocked; at this time, the first There is no water overflowing from the overflow port, and water overflows from the second overflow port. Keep the water inlet valve and water outlet valve normally open, close the water supply valve, open the water supply bypass valve, close the overflow valve, the U-shaped water seal device is high water level overflow, and the U-shaped pipe is blocked; at this time, the first overflow There is water overflowing from the first overflow port, but there is no water overflowing from the second overflow port. If the water outlet conditions of the overflow outlet are different from those described in the low water level overflow and high water level overflow states, the water seal device is faulty.

The U-shaped water seal device of the present invention realizes normal and closed U-shaped pipes by changing the overflow height, and can judge whether the overflow valve of the water seal device is working normally through the water outlet conditions of the two overflow ports. Timely detection of device failures, elimination of potential safety hazards, simple structure and easy operation.

Description of drawings

Fig. 1 is a schematic structural view of the first embodiment of the U-shaped water sealing device of the present invention.

Fig. 2 is a schematic structural diagram of a second embodiment of the U-shaped water seal device of the present invention.

In the figure: 1-water supply pipe; 2-water inlet pipe; 3-U-shaped pipe; 4-horizontal sink; 5-high water level overflow pipe; 6-value water outlet pipe; 7-second overflow port; 8-overflow Flow valve; 9-low water level overflow pipe; 10-first overflow port; 11-drainage pipe; 12-fill water valve; 13-bypass water fill valve; 14-water inlet valve;

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings, so that those skilled in the art can understand more clearly, as shown in Figure 1, the present invention adopts the following scheme, comprising: U-shaped pipe 3; 3 the water supply pipe 1 at the left end, the water supply pipe 1 is provided with a water supply valve 12 and a bypass water supply valve 13 connected to both ends of the water supply valve through pipelines; the water inlet pipe 2 connected to the lower end of the U-shaped pipe 3, the inlet The water pipe 2 is provided with a water inlet valve 14; the horizontal water tank 4 connected to the other end of the water inlet pipe 2; the vertical water outlet pipe 6 connected to the horizontal water tank 4; Outlet valve 15, low water level overflow pipe 9 and high water level overflow pipe 5 are connected in sequence from low to high; said low water level overflow pipe 9 is provided with overflow valve 8 and first overflow port 10 in sequence from left to right ; The high water level overflow pipe 5 is provided with a second overflow port 7 . The water outlet end of the high water level overflow pipe 5 of the present invention is connected on the low water level overflow pipe 9, and the end of the high water level overflow pipe 5 is located between the overflow valve 8 and the first overflow port 10; The outlet end of the low water level overflow pipe 9 is connected with the drain pipe 11.

As shown in Figure 2, the present invention can also adjust the connection position of the outlet of the high water level overflow pipe 5, and connect the outlet of the low water level overflow pipe 9 and the outlet of the high water level overflow pipe 5 to the drain pipe 11.

The height of the connection point between the water supply pipe 1 and the U-shaped pipe 3 is the same as the height of the upper end of the high water level overflow pipe 5; when the high water level of the device overflows, it can ensure the water level in the U-shaped pipe 1 under the water seal state to prevent the water seal from being hit Put on.

The height of the low water level overflow pipe 9 is less than that of the U-shaped pipe 3; when the device overflows at a low water level, it is ensured that the inside of the U-shaped pipe 1 is completely unobstructed.

When working, keep the water inlet valve 14 and the water outlet valve 15 normally open, close the water supply valve 12, open the water supply bypass valve 13, open the overflow valve 8, the U-shaped water seal device is low water level overflow, and the inside of the U-shaped pipe 1 is unblocked ; At this time, the first overflow port 10 has no water to overflow, and the second overflow port 7 has water to overflow. Keep the water inlet valve 14 and the water outlet valve 15 normally open, close the water supply valve 12, open the water supply bypass valve 13, close the overflow valve 8, the U-shaped water seal device is high water level overflow, and the U-shaped pipe 1 is blocked; at this time , the first overflow port 10 has water to overflow, and the second overflow port 7 has no water to overflow. If the water outlet situation of the overflow port is different from the above in the low water level overflow and high water level overflow states, the overflow valve 8 of the water sealing device is faulty.

The U-shaped water seal device of the present invention realizes normal and closed U-shaped pipes by changing the overflow height, and can judge whether the overflow valve of the water seal device is working normally through the water outlet conditions of the two overflow ports. Timely detection of device failures, elimination of potential safety hazards, simple structure and easy operation.

Claims (5)

1. a kind of U-shaped water seal arrangement, including：U-tube (3)；It is connected to the filling pipe (1) of the U-tube (3) left end, the benefit Water pipe (1) is provided with water compensating valve (12) and the bypass water compensating valve (13) at water compensating valve both ends is connected to by pipeline；It is connected to the U The water inlet pipe (2) of type pipe (3) lower end, the water inlet pipe (2) are provided with water intaking valve (14)；It is another to be connected to the water inlet pipe (2) The horizontal tank (4) at end；The vertical outlet pipe (6) being connected on the horizontal tank (4)；

Characterized in that, the water seal arrangement also includes：

Outlet valve (15), low water level overflow pipe (9) and high water level are connected with turn from low to high on the vertical outlet pipe (6) to overflow Flow tube (5)；The low water level overflow pipe (9) is sequentially provided with overflow valve (8) and the first overfall (10) from left to right；The Gao Shui Position overflow pipe (5) is provided with the second overfall (7).

2. U-shaped water seal arrangement according to claim 1, it is characterised in that：The water side connection of the highstand shedding pipe (5) On low water level overflow pipe (9), the end of the highstand shedding pipe (5) be located at overflow valve (8) and the first overfall (10) it Between；Low water level overflow pipe (9) water side is connected with drainpipe (11).

3. U-shaped water seal arrangement according to claim 1, it is characterised in that：Low water level overflow pipe (9) water side and Gao Shui Position overflow pipe (5) water side is connected on drainpipe (11).

4. U-shaped water seal arrangement according to claim 1, it is characterised in that：The filling pipe (1) is high with U-tube (3) tie point Degree is identical with highstand shedding pipe (5) upper end level.

5. U-shaped water seal arrangement according to claim 1, it is characterised in that：The height of the low water level overflow pipe (9) is less than U The height of type pipe (3).