Gas pipe network upgrading method

A technology of gas pipes and pipelines, which is applied in the direction of pipeline laying and maintenance, pipes/pipe joints/fittings, mechanical equipment, etc., and can solve problems such as safety accidents, normal gas consumption, gray and water blockages in gas cast iron pipe networks, etc. To achieve the effect of gas transmission safety, optimize the layout, and solve the problem of gas leakage

Active Publication Date: 2021-06-15
呼和浩特中燃城市燃气发展有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It is understood that most of the city's gas pipeline network is concentrated in the municipal roads and old residential areas in the central urban area. The above areas are densely populated. Once a gas leak occurs, it is easy to cause a safety accident.
In addition, dust and water blockages often occur in the gas cast iron pipe network, which affects the normal gas consumption of the general public

Method used

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Embodiment Construction

[0045] The characteristics and technical effects of the technical solution of the present invention will be described in detail below with reference to the accompanying drawings and in conjunction with schematic embodiments, and a gas pipeline network upgrading method that ensures gas safety under different geological conditions at high efficiency and low cost is disclosed. It should be pointed out that similar reference numerals represent similar structures, and the terms "first", "second", "upper", "lower" and the like used in this application can be used to modify various structures. These modifications do not imply a spatial, sequential or hierarchical relationship to the modified structure unless specifically stated.

[0046] like figure 1 As shown, the gas pipeline network upgrading method according to the embodiment of the present invention includes the following process:

[0047] Step 1. Determine the old pipeline distribution;

[0048] Step 2. Drill holes around the...

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Abstract

The invention provides a gas pipe network upgrading method. The gas pipe network upgrading method comprises the steps that Step 1, old pipeline distribution is determined; Step 2, holes are drilled around an old pipeline, soil layer detectors are buried; Step 3, a material of a new pipeline is selected according to geological conditions detected by the soil layer detectors; Step 4, the new pipeline is installed, and the soil layer detectors are reserved. According to the gas pipe network upgrading method, high-quality and high-efficiency pipes are adopted in the pipe network upgrading process according to the on-site actual conditions, the operation safety performance of the gas pipe network can be greatly improved after transformation is completed, and potential safety hazards caused by gas leakage or other conditions of the gas pipe network to the personal and property of residents are reduced or avoided.

Description

technical field [0001] The invention relates to the field of gas pipeline network laying, in particular to a method for upgrading old gas pipeline networks under different geological conditions. Background technique [0002] The urban underground gas pipeline network refers to the system composed of all facilities from the gate station to the user, including the gate station or factory pressure compressor, gas storage facilities, pressure regulating devices, transmission and distribution pipelines, metering devices, management facilities, monitoring systems, etc. Taking Hohhot as an example, China Gas has been supplying city gas since 1984. Due to the limited conditions at that time, the underground gas pipeline network was made of various materials, and it had experienced the transition from coal-to-gas and air-mixed gas to gas. Over 20 years, aging is severe. On the other hand, the geological structure of the city is dominated by sandy soil layers. Affected by uneven sett...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L1/028F16L1/11F16L1/06
CPCF16L1/028F16L1/11F16L1/06
Inventor 李更新尹生开邹志峰张旭丹
Owner 呼和浩特中燃城市燃气发展有限公司
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