There have been several pipe breaking accidents in the past 5 years, why do water pipe rupture accid

I think it may be caused by excessive water pressure, and the technology should be improved.

Frequent accidents, because the accident does not attract attention in the early stage, thousands of miles of embankment destroyed in the anthill, to start from the symptomatic problem to reduce the occurrence of accidents.

The situation has not improved over the years because of poor safety monitoring.

I think it may be that the person in charge is not doing a good job and not doing a good job, which is why it will be like this.

I think it must have been caused by cutting corners while working on the project at that time.

It must be that the preliminary survey stage was not serious, and the acceptance was unqualified, which led to the collapse accident of the subway just after construction.

Because this safety assessment is doped with a large amount of moisture, accidents will occur, and the construction of any public works and safety monitoring should not be sloppy.

I think it may be that the security assessment is not in place, and it is not carefully checked, which is why it is like this.

Hello landlord!

1. For such a situation, you need to find out the cause of the water pipe burst with the property company, if it is the aging of the equipment, the non-tenant's malicious use caused by the burst water seepage, you do not need to be liable.

2. It also depends on the lease contract you signed at that time, and whether there are any acceptance clauses, such as: I have checked all the hardware of the house, which is in good condition and can be used normally; Once there is this article, you are responsible for the accident.

3. Due to this accident, the downstairs also suffered from the decoration damage caused by water seepage in the property, and you and the owner yourself are the objects of recourse compensation, so you have to bear part of the responsibility more or less.

1. Due to the rupture of the water pipe, the first thing to solve is to repair the water pipe to ensure that the repair is completed and no longer leakage and seepage accidents. If it is a bathroom wall, it needs to be repaired and waterproofed.

2. Solution:

1. Peeling and cracking of the small area of epidermis. Shovel off the peeled part and the surrounding wall skin, and fill it with the same color paint; If the decoration is brushed with latex paint, it is best to use the same method of brushing glue for the second treatment, which can reduce the color difference between the part and the whole.

2. Large-scale peeling and cracking, you can only shovel off all the paint and putty on the wall, brush the cracked base layer with white latex, paste a good cloth, wipe putty, and so on after drying, polish with sandpaper, and then brush the paint. If the crack is deep, this part should be treated with plasterboard separately.

Solution:

1. Shovel away the leakage of the wall;

2. Cut off the water pipe from the rupture of the water pipe, and then use the direct head to re-melt the water pipe. (The main valve in front of the water meter needs to be turned off before the water pipe is cut).

3. Conduct a suppression test. Hit 8 pressures (8 megapascals, commonly known as 8 kg pressure), one is to observe whether there is leakage at the joint, and the other is to see if the pressure is dropped within half an hour. (The amount of pressure dropped within half an hour is less than that).

4. After passing the pressure test, do the nest sealing treatment, and then do the follow-up tiling or other treatment work.

Scrape the paint, re-scrape the putty, and paint.

On February 27, 2001, the pipeline of the synthesis workshop of a fertilizer factory in Yancheng City, Jiangsu Province suddenly ruptured, causing a hydrogen leakage accident, killing 5 people and injuring 26 people.

Accident history: At 16:45 on February 27, the pipeline of the synthesis workshop of a fertilizer factory in Yancheng City, Jiangsu Province suddenly ruptured, and then a large amount of hydrogen leaked. The factory leaders immediately ordered the operator to close the main valve and the auxiliary valve, and the whole plant was shut down urgently.

About 5 minutes later, just as the relevant personnel were nervously discussing how to deal with the accident, the synthesis workshop suddenly occurred, in the central area of about 1,000 square meters, the nearly 10m high workshop of the synthesis workshop was blown into ruins, and the glass on hundreds of windows in the nearby plant was shattered, resulting in the death of 3 people on the spot in the synthesis workshop, and another 2 people died due to excessive injuries, and 26 people were injured.

Accident analysis: In this accident, after the pipeline ruptured and a large amount of hydrogen leaked, the objective conditions of the first class have been met. According to the ** theory, the following conditions must be met for the combustible gas to ignite and explode in the air:

First, the concentration of the mixture formed by combustible gas and air reaches the limit, forming a first-class mixture. After the pipeline ruptures, a large amount of hydrogen leaks, which immediately forms a flammable and explosive gas mixture, which spreads rapidly. The limit of hydrogen in the air is 4% to 75%, and when its concentration is reached, detonation will occur.

Second, there is an ignition source that can ignite the first-class mixture. When a large amount of hydrogen is leaked and ejected from the pipeline, the hydrogen and the pipe rupture rub sharply, resulting in a high electrostatic voltage. When the electrostatic charge accumulates to a certain amount, it will break through the air medium and discharge the ground, resulting in electrostatic sparks, which will cause **.

Accident Lessons and Preventive Measures:

The occurrence of this accident is mainly due to the defects in the safety management of equipment and facilities, the failure to discover the hidden dangers of the pipeline in time, and the failure to maintain and replace them in time. In terms of preventive measures, it is necessary to do:

1) Effectively strengthen the safety management of equipment, regularly carry out technical analysis and system leak detection for pipelines and valves that are easy to cause corrosion and damage, and use the equipment cycle to overhaul thoroughly.

2) Open flames are strictly prohibited in the fire and explosion-proof area of the factory, and personnel entering the area should wear anti-static clothing or cotton overalls; The use of communication devices such as mobile phones is strictly prohibited in the area; The electrical facilities in the fire and explosion-proof area, including lighting fixtures and switches, should be explosion-proof, with good wire insulation and reliable joints; It is strictly forbidden to have exposed hot objects in the fire and explosion-proof zone.

3) Strengthen the training of relevant safety technical knowledge, improve the awareness of employees on the danger of relevant equipment, establish and improve various rules and regulations, and conscientiously implement relevant safety regulations.

4) Formulate emergency plans, strengthen the drills of emergency plans, and improve the ability of enterprise managers to deal with emergencies. In this accident, if the production staff can be withdrawn in time, the number of personnel will be reduced**.