CN211951548U

CN211951548U - Gas non-return device for water pipeline

Info

Publication number: CN211951548U
Application number: CN202020153572.4U
Authority: CN
Inventors: 刘佳诚; 于丰浩; 邸健; 乔世金; 张文锦
Original assignee: Ansteel Engineering Technology Corp Ltd
Current assignee: Ansteel Engineering Technology Corp Ltd
Priority date: 2020-02-05
Filing date: 2020-02-05
Publication date: 2020-11-17
Anticipated expiration: 2030-02-05

Abstract

The utility model relates to a gas non-return device for a water pipeline, which comprises a cavity, a water inlet pipe, a water outlet pipe, a water replenishing pipe, an overflow observation port and a guide plate, wherein the cavity is of a closed structure, the water inlet pipe is communicated below one side, the water outlet pipe is communicated above the other side, the overflow observation port is arranged on the side wall of the cavity below the water outlet pipe, and the water replenishing pipe is connected on the cavity; the cavity is fixedly connected with a guide plate, so that water flows in a serpentine and circuitous manner in the cavity. The advantages are that: rational in infrastructure, low cost when overhauing cutting off water to the water pipe section, prevents that gas from flowing backward, ensures production normal clear. The gas is prevented from flowing backwards by using a water seal. Whether water flows through the overflow observation port ensures whether water in the cavity is completely sealed, so that whether coal gas overflows can be clearly observed, and the overhaul safety is ensured.

Description

Gas non-return device for water pipeline

Technical Field

The utility model relates to a gaseous non return device for water pipeling.

Background

In the primary dust removal system of the converter of the iron and steel enterprise, the return water of the cooling turbidity of the equipment is the key of the whole process, and the cooling water of the equipment needs to be pressurized by a water pump after cooling the equipment, is connected to a flow groove and is arranged to water treatment equipment of a factory area, so that impurities are removed and the equipment is recycled. However, when the pressurized water pump room is overhauled to the runner pipe section, part of coal gas can flow back from the overhauled and water-cut runner and overflow from the pipe section valve, and normal production is affected.

Disclosure of Invention

For overcoming the defects of the prior art, the utility model aims at providing a gas non-return device for a water pipeline, which prevents gas from flowing backwards and ensures the safety of maintenance.

In order to achieve the above object, the utility model discloses a following technical scheme realizes:

a gas non-return device for a water pipeline comprises a cavity, a water inlet pipe, a water outlet pipe, a water replenishing pipe, an overflow observation port and a guide plate, wherein the cavity is of a closed structure, the water inlet pipe is communicated below one side, the water outlet pipe is communicated above the other side, the overflow observation port is formed in the side wall of the cavity below the water outlet pipe, and the water replenishing pipe is connected to the cavity; the cavity is fixedly connected with a guide plate, so that water flows in a serpentine and circuitous manner in the cavity.

An overflow pipe is connected to the overflow observation port.

The overflow pipe is connected with an overflow valve.

The overflow valve is a manual gate valve.

The overflow pipe is connected with the sewage discharge pipe through an overflow valve.

The water replenishing pipe is connected with a water replenishing valve.

The water replenishing valve is a manual gate valve.

The outer diameter of the cavity is larger than the sum of the inner diameters of the water inlet pipe and the water outlet pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

a gaseous non return device for water pipeling is rational in infrastructure, and low cost prevents that gas from flowing backward when overhauing the water pipe section cutting off water, ensures production normal clear. The gas is prevented from flowing backwards by using a water seal. Whether water flows through the overflow observation port ensures whether water in the cavity is completely sealed, so that whether coal gas overflows can be clearly observed, and the overhaul safety is ensured. An overflow pipe and an overflow valve are additionally arranged, so that the observation operation is convenient, and meanwhile, the water in the cavity is directly discharged by utilizing the drain pipe. The lateral wall moisturizing of cavity, the installation is dismantled convenient and fast, low cost.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1-guide plate 2-water inlet pipe 3-water outlet pipe 4-overflow observation port 5-water replenishing pipe 6-cavity.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings, but it should be noted that the present invention is not limited to the following embodiments.

Referring to fig. 1, the gas non-return device for the water pipeline comprises a cavity 6, a water inlet pipe 2, a water outlet pipe 3, a water supplementing pipe 5, an overflow observation port 4 and a guide plate 1, wherein the cavity 6 is of a closed structure, the water inlet pipe 2 is communicated below one side of the cavity, the water outlet pipe 3 is communicated above the other side of the cavity, the overflow observation port 4 is formed in the side wall of the cavity 6 below the water outlet pipe 3, and the water supplementing pipe 5 is connected to the cavity 6; fixedly connected with guide plate 1 in the cavity 6, guide plate 1 crisscross setting, make water snakelike circuitous flow in cavity 6, as shown in fig. 1, two guide plates 1 of installation in cavity 6, it is fixed with cavity 6 to be close to 1 bottom of guide plate of inlet tube 2, the passageway is left with cavity 6 to the upper end, another guide plate 1 then upper end and cavity 6 fixed connection, leave the passageway between bottom and cavity 6, ensure the water condition of depositing of observing cavity 6 that overflow viewing aperture 4 can be accurate like this. The cavity 6 is directly connected to the water pipe from the pressurized water pump room to the launder pipe section.

The overflow observation port 4 is connected with an overflow pipe, the overflow pipe is connected with an overflow valve, and the overflow valve is a manual gate valve, so that temporary manual operation is facilitated. The overflow pipe is connected with a drain pipe through an overflow valve, and the overflow pipe can be drained to the floor drain. The water replenishing pipe 5 is connected with a water replenishing valve which is a manual gate valve.

The cavity 6 can be a cylindrical structure, the outer diameter of which is larger than the sum of the inner diameters of the water inlet pipe 2 and the water outlet pipe 3, or a cuboid structure, the side length of which is larger than the sum of the inner diameters of the water inlet pipe 2 and the water outlet pipe 3. In addition, a filter screen is arranged at the position of the water supply pipe to prevent the cavity 6 from being blocked.

When the pipeline normally supplies water, water is fed through the water inlet pipe 2, and water is discharged through the water outlet pipe 3. When the pipeline overhauls the cutting off water, the pipeline water-logging all stops inside guide plate 1, and whether the maintainer has water in observing cavity 6 from the overflow observation pipe, if do not have water in the cavity 6, then carry out the moisturizing from moisturizing pipe 5.

Claims

1. A gas non-return device for a water pipeline is characterized by comprising a cavity, a water inlet pipe, a water outlet pipe, a water replenishing pipe, an overflow observation port and a guide plate, wherein the cavity is of a closed structure, the water inlet pipe is communicated below one side of the cavity, the water outlet pipe is communicated above the other side of the cavity, the overflow observation port is formed in the side wall of the cavity below the water outlet pipe, and the water replenishing pipe is connected to the cavity; the cavity is fixedly connected with a guide plate, so that water flows in a serpentine and circuitous manner in the cavity.

2. A gas check device for water pipes according to claim 1, wherein an overflow pipe is connected to the overflow observation port.

3. A gas check device for water pipes according to claim 2, wherein an overflow valve is connected to the overflow pipe.

4. A gas check device for water pipes according to claim 3, wherein said overflow valve is a manual gate valve.

5. A gas check device for water pipes according to claim 3, wherein the overflow pipe is connected to the sewage drain through an overflow valve.

6. The gas check device for water pipeline of claim 1, wherein the water replenishing pipe is connected with a water replenishing valve.

7. The gas check device for water pipelines of claim 6, wherein said water replenishing valve is a manual gate valve.

8. The gas check device for water pipeline of claim 1, wherein the outer diameter of the cavity is larger than the sum of the inner diameters of the water inlet pipe and the water outlet pipe.