CN110812751B

CN110812751B - Corrosion-inhibiting annular fire-fighting ground pipe

Info

Publication number: CN110812751B
Application number: CN201911313017.1A
Authority: CN
Inventors: 陈国海
Original assignee: Dalian Fujia Dahua Petrochemical Co Ltd
Current assignee: Dalian Fujun Port Logistics Co ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2023-10-13
Anticipated expiration: 2039-12-18
Also published as: CN110812751A

Abstract

The invention relates to an improved process for laying fire-fighting water and ground pipes, and specifically relates to a corrosion-inhibiting annular fire-fighting ground pipe, which belongs to the field of chemical industry and includes a fire-fighting pool and a fire-fighting water pump connected to the fire-fighting pool. The outlet pipeline of the fire-fighting water pump is connected to several fire-fighting branch pipes, each of which The fire branch pipes are respectively connected to a return water branch pipe, and the return water branch pipes are connected to the fire protection pool. Each return water branch pipe is provided with a fire water branch pipe valve. The beneficial effects of the present invention are that branch valves are added to each branch pipe of the fire water in the factory area and are designed in an annular shape. By opening and closing the valves on the fire water pipe, the fire water can be connected and circulated with the fire pool, and the rust and mud stored in the fire pipe can be removed. Remove sand and other impurities to prevent corrosion of pipelines due to sediment adhering to the pipe wall.

Description

Corrosion-inhibition annular fire-fighting ground pipe

Technical Field

The invention relates to an improved process for laying fire-fighting water ground pipes, in particular to a corrosion-inhibition annular fire-fighting ground pipe, and belongs to the field of chemical industry.

Background

Fire water pipelines in factories are all ground pipes, fire emergency water is provided for each device, the fire water is continuously injected into the fire water to maintain pressure through a pressure stabilizing pump, the daily consumption is avoided, occasionally, the fire hydrant water can not bring all impurities out of the pipelines, the water in the pipelines does not flow for a long time, and sediments such as rust, sediment and the like in the pipelines are easy to adhere to the pipe walls, so that the pipeline is deposited and corroded.

Disclosure of Invention

According to the defects of the prior art, the invention aims to provide the corrosion inhibition annular fire-fighting ground pipe capable of timely removing sediment, rust and other impurities deposited in a pipeline and reducing corrosion.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the corrosion inhibition annular fire-fighting ground pipe comprises a fire-fighting water tank and a fire-fighting water pump connected with the fire-fighting water tank, wherein an outlet pipeline of the fire-fighting water pump is connected with a plurality of fire-fighting branch pipes, each fire-fighting branch pipe is respectively connected with a backwater branch pipe, the backwater branch pipes are communicated with the fire-fighting water tank, and each backwater branch pipe is provided with a fire-fighting water branch pipe valve.

Further, a drain valve is arranged at the bottom of the fire-fighting pool.

Further, a fire water pump outlet valve is arranged on an outlet pipeline of the fire water pump.

Further, a plurality of backwater branch pipes are connected to a backwater main pipe and are communicated to a fire water pond through the backwater main pipe, and a backwater main valve is arranged on the backwater main pipe.

Further, the water return main pipe is provided with a plurality of water return main pipes in parallel, and each water return main pipe is provided with a water return main valve.

Preferably, two water return main pipes are connected in parallel, and two water return main pipes are respectively provided with a water return main valve.

Preferably, the number of the fire-fighting branch pipes is five.

The beneficial effects of the invention are as follows: branch valves are added on all branch pipes of fire-fighting water in a factory, the fire-fighting water and a fire-fighting water pool can be communicated and circulated by opening and closing the valves on the fire-fighting water ground pipe, impurities such as rust and sediment in the fire-fighting ground pipe are removed, and the pipeline is prevented from being corroded due to the fact that sediment is attached to the pipe wall.

Drawings

FIG. 1 is a schematic view of an annular fire-fighting ground pipe;

in the figure: 1. fire water pond, 2, fire water pump, 3, fire pump outlet valve, 4, first fire branch pipe valve, 5, second fire branch pipe valve, 6, third fire branch pipe valve, 7, fourth fire branch pipe valve, 8, fifth fire branch pipe valve, 9, first return water main valve, 10, second return water main valve, 11, fire hydrant, 12, blow-down valve, 13, fire water pump outlet pipeline, 14, fire branch pipe, 15, return water branch pipe, 16, return water main pipe.

Detailed Description

In order to make the structure and function of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention.

Referring to fig. 1, the corrosion inhibition annular fire-fighting ground pipe comprises a fire-fighting water tank 1 and a fire-fighting water pump 2 connected with the fire-fighting water tank, wherein a fire-fighting water pump outlet valve 3 is arranged on an outlet pipeline 13 of the fire-fighting water pump, the outlet pipeline of the fire-fighting water pump is connected with five fire-fighting branch pipes 14, each fire-fighting branch pipe 14 is respectively connected with a water return branch pipe 15, each water return branch pipe 15 is provided with a fire-fighting water branch pipe valve, the five water return branch pipes 15 are connected to a water return main pipe 16 and are communicated to the fire-fighting water tank 1 through the water return main pipe 16, a water return main valve is arranged on the water return main pipe 16, and a drain valve 12 is arranged at the bottom of the fire-fighting water tank 1.

Based on the technical scheme, when fire water is not needed to circulate, the water return main valve is closed. When a certain fire-fighting branch pipe needs to be flushed, the fire-fighting water circulation from the fire-fighting water pool to the fire-fighting branch pipe to the water-returning main pipe to the fire-fighting water pool can be completed by opening the fire-fighting branch pipe, the corresponding fire-fighting water branch pipe valve and the corresponding water-returning main pipe and opening the water-returning main valve, and meanwhile, the open fire-fighting branch pipe is flushed, and sundries in the fire-fighting water pool are flushed.

Further, two water return main pipes are arranged in parallel, and each water return main pipe is provided with a water return main valve. In consideration of water flow, when all fire-fighting branch pipes are opened and all fire-fighting branch pipes are flushed, one water return main pipe cannot meet backflow of all fire-fighting water, so that the two water return main pipes can be connected in parallel, the two water return main pipes can be used one by one, when one water return main pipe is damaged and the like, the fire-fighting water circulation system can be replaced in time, and paralysis of the whole fire-fighting water circulation system is avoided.

Further, the fire-fighting branch pipes 14 provide fire-fighting emergency water for each device in the factory, and each fire-fighting branch pipe is connected with a fire hydrant 11. In a normal state, each backwater main valve is closed, and the fire pump 2 maintains pressure for each fire branch pipe 14, so that the fire hydrant 11 can be used normally.

The working process comprises the following steps: the fire-fighting water in the factory is pressurized by a fire-fighting water pump 2 from a fire-fighting water pool 1 and is sent to fire-fighting water ground pipes and fire-fighting branch pipes through a fire-fighting water pump outlet valve 3. Under normal conditions, the return water main valves are closed, the fire pump 2 maintains pressure for the fire branch pipes 14, the normal use of the fire hydrant 11 is ensured, and the water flow in the fire branch pipes is basically in a no-flow state. After the fire water and ground pipe runs for a period of time, opening a first water return main valve 9 or a second water return main valve 10, and then sequentially opening a first fire water branch pipe valve 4, a second fire water branch pipe valve 5, a third fire water branch pipe valve 6, a fourth fire water branch pipe valve 7 and a fifth fire water branch pipe valve 8; the fire-fighting water is circularly flushed in the pipeline, and finally the purposes of flushing sundries in the fire-fighting land pipeline cleanly and preventing the pipeline from being corroded by sediments attached to the pipeline wall are achieved. For example, it is necessary to clean the first fire branch pipe, open the first fire branch pipe valve 4 corresponding to the first fire branch pipe, and open the first return water main valve 9, and close the second fire branch pipe valve 5, the third fire branch pipe valve 6, the fourth fire branch pipe valve 7, the fifth fire branch pipe valve 8, and the second return water main valve 10; sediment such as rust or sediment in the first fire-fighting branch pipe circulates to the fire-fighting water pond 1 along with fire-fighting water passing through the first fire-fighting branch pipe valve 4 and the first backwater main valve 9, meanwhile impurities in the pipe are flushed to the fire-fighting water pond 1, and after the impurities are precipitated in the pond, the impurities are discharged to a sewage system through the blow-down valve 12.

The invention is characterized in that the drawing is a schematic diagram, the condition in the factory is complex, each fire-fighting branch pipe is connected with a plurality of fire hydrants, the fire-fighting branch pipe valve is normally open, the water return main valve is normally closed, the use of the fire hydrants is not affected, and after the fire-fighting ground pipe runs for a period of time, the water return main valve is opened to circulate fire water, so that sundries in the pipeline are prevented from depositing.

After the fire water is operated for a period of time, valves on all branches can be closed to circulate the fire water ground pipe one by one, impurities such as rust, sediment and the like remained in the pipe are flushed to the fire water tank 1, and the impurities are discharged to a sewage pipe network through a blow-down valve 12 after the impurities are deposited at the bottom of the fire water tank 1, so that the purposes of eliminating the impurities such as sediment and the like in the fire water ground pipe and preventing deposition corrosion caused by long-term operation of the pipeline are achieved.

The foregoing list is only the preferred embodiments of the present invention. Obviously, the invention is not limited to the above embodiments, but many variations are possible. All modifications directly derived or suggested to one skilled in the art from the present disclosure should be considered as being within the scope of the present invention.

Claims

1. Corrosion inhibition annular fire control ground pipe, its characterized in that: the fire-fighting water pump comprises a fire-fighting water tank and a fire-fighting water pump connected with the fire-fighting water tank, wherein an outlet pipeline of the fire-fighting water pump is connected with a plurality of fire-fighting branch pipes, each fire-fighting branch pipe is respectively connected with a backwater branch pipe, the backwater branch pipes are communicated to the fire-fighting water tank, and each backwater branch pipe is provided with a fire-fighting water branch pipe valve; a drain valve is arranged at the bottom of the fire-fighting water tank; an outlet pipeline of the fire-fighting water pump is provided with a fire-fighting water pump outlet valve; the water return branch pipes are connected to the water return main pipe and are communicated to the fire water tank through the water return main pipe, and the water return main pipe is provided with a water return main valve.

2. The corrosion-inhibiting annular fire-fighting ground pipe according to claim 1, characterized in that: the water return main pipe is provided with a plurality of water return main pipes in parallel, and each water return main pipe is provided with a water return main valve.

3. The corrosion-inhibiting annular fire-fighting ground pipe according to claim 1, characterized in that: two water return main pipes are connected in parallel, and a water return main valve is respectively arranged on the two water return main pipes.

4. The corrosion-inhibiting annular fire-fighting ground pipe according to claim 1, characterized in that: the number of the fire-fighting branch pipes is five.