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Credibility ,Natural gas pipeline refers to the pipeline that transports natural gas (including associated gas produced in oil field) from the production site or treatment plant to urban gas distribution center or industrial enterprise users, also known as gas transmission pipeline. Using natural gas pipeline to transport natural gas is a way to transport natural gas on land. Natural gas pipelines account for about half of the world's total pipelines.
In the construction process of general
natural gas pipeline, there are some safety problems in environment,
construction and management, and these three potential safety hazards will be
explained in detail.
The main potential safety hazard in the
environment comes from the destruction of soil structure caused by the
excavation of pipelines, which leads to a higher degree of soil looseness. In
addition, the stacking of solid waste at the construction site, the noise in
the construction process, the emission of harmful gases and so on. If bad
weather or natural disasters, such as earthquakes, floods, debris flows, are
encountered in the construction process, it will cause secondary damage to the
already fragile soil, and will increase the difficulty of construction,
threatening the personal safety of construction personnel.
The state has formulated a set of
relatively perfect construction standards for natural gas pipeline engineering,
which involves specific construction technology, construction technology,
operation process, etc. It can be used as a reference basis for each
construction unit in the actual construction process, and can effectively
ensure that the potential safety hazards are minimized. However, many
enterprises fail to clarify these indicators to technicians in the construction
process, resulting in frequent irregular construction, or lack of comprehensive
consideration of the overall project, resulting in omissions on some details,
which will bring some potential safety hazards to the follow-up construction
process.
According to the survey, more than half of
natural gas pipeline accidents are caused by poor management in the
construction process. The level of management has a direct relationship with
the quality of the project, and directly determines the safety factor of the
construction site. Management involves all aspects of construction, from the
management of construction materials, machinery and equipment to the management
of construction personnel, we should pay more attention. If any one of the management
is not in place, it may lead to safety problems on the construction site,
especially the electricity problem on the construction site, which is closely
related to the personal safety of the site personnel. It is a arduous and
complicated task to manage all the elements in the whole process of natural gas
pipeline construction. The most common safety problems are as follows:
In the construction under ditches, if the
working surface is not thoroughly cleaned, or the safety measures such as
escape ladders, protective nets are not placed correctly, or the lack of
enclosure, it may cause pipe rolling accidents.
In the process of pipeline construction, it
is necessary to inspect the distribution equipment regularly. If the equipment
fails and is not repaired in time, it is very likely to cause short circuit or
leakage. In addition, if the site line is unreasonable, it is easy to cause
short-circuit, the direct consequence of short-circuit is to burn down
electrical equipment, and even cause explosions and fires.
In the pipeline construction process, the
following inflammable and explosive materials may be introduced into the site.
Attention should be paid to the decentralized handling of these items when they
are preserved, and to ensure that the containers for storing these dangerous
goods have a good appearance and no damage, otherwise it is very likely to lead
to the spillover of the goods. In order to reduce the cost, some construction
units use plastic containers to store these chemically prone items without
authorization, which may lead to fire and explosion accidents.
The construction personnel are the main
body of the construction site, the most active factor, and the breakthrough of
maintaining the safety of the construction site. Therefore, the primary task is
to strengthen the education and management of the construction personnel,
improve their safety awareness, so that they can work in accordance with the
standard technology in the construction, and avoid accidents in the
construction caused by factors considered. Therefore, construction units can use
technical training, safety education and responsibility system to manage
employees, so that they can continuously improve their operational ability and
professional ethics. In the training process, attention should be paid to
follow up the training process of construction personnel in real time, so as to
adjust their post responsibilities, so that construction projects are not
affected by external factors. In addition, construction units must give
necessary humanistic care to employees, organize regular physical examinations,
and conduct psychological counseling to enhance their work enthusiasm and
attention, so as to effectively guarantee the construction efficiency and
construction quality.
According to the actual situation of the
project, it can be divided into specific territorial responsibility areas, and
the responsibilities in each area can be refined to specific positions and
individuals, so that each employee has its own exclusive responsibility areas,
responsible for their own positions, and accept the supervision of others. In
daily work, employees should investigate the potential safety hazards in the
area they are responsible for one by one, and then report them to the team
leader to ensure that on-site risk control measures are in place, and make
safety technical submissions.
When carrying out high-risk project
operations, such as excavation, welding technology of natural gas pipeline and blasting operations, it is
necessary to carry out risk assessment and safety analysis, and formulate
reasonable construction risk response measures, urge these measures to be
implemented, so that each post can clearly define its actual responsibilities,
and each employee should put safety awareness first, starting from itself, to
ensure the operation ring. Security and stability of the environment. In
addition, it is necessary to organize emergency drills regularly so that
employees can grasp the response measures in various emergencies and improve
their ability to identify and avoid risks.
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