Construction method of LNG high-pressure pump

Abstract

The invention discloses a construction method of an LNG high-pressure pump. The construction method comprises the following steps that (a) a foundation pit is excavated and cleaned; (b) putting the foundation in place; (c) arranging a soil retaining frame; (d) arranging side soil retaining plates; and (e) filling soil. According to the method, step-by-step ordered positioning construction is achieved, the operation difficulty is low, the construction efficiency is high, control is easy, the construction quality is guaranteed, a semi-buried method is adopted, the space utilization rate is increased, the occupied space on the ground is reduced, all the buried parts are tightly adjacent and contained into a whole, the supporting effect on the pump body is guaranteed, and therefore the stability of the pump body is kept.

Description

technical field [0001] The invention belongs to the technical field of LNG pumps, and in particular relates to a construction method of an LNG high-pressure pump. Background technique [0002] The main component of LNG (liquefied natural gas) is methane, which is colorless, odorless, non-toxic and non-corrosive. After LNG is burned, it has very little air pollution and emits a large amount of heat, making it a relatively clean energy source. [0003] In the process of LNG transportation, LNG pumps are often used, and the pump body of the LNG pump is usually installed on the base to realize the fixation with the ground. Due to the large volume of the pump body, it occupies a large space on the ground, and the vibration generated during the working process of the LNG pump is large, which is prone to shaking, which not only affects the transportation of LNG, but also affects the reliability of the connection between the pump body and the pipeline. The flatness of the ground, t...

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Problems solved by technology

Due to the large volume of the pump body, it takes up a lot of space on the ground, and the vibration generated during the operation of the LNG pump is relatively large, which is prone to shaking, which not only affects the transportation of LNG, but also affects the connection reliability between the pump body and the pipeline. The flatness of the ground and the connection strength between the base and the ground, otherwise it is difficult to ensure the stability of the LNG pump operation, the construction requirements are high, and frequent maintenance is required; some semi-buried fixed LNG pumps are used, but the pump body is continuously affected by the surrounding Extrusion of the soil can easily cause deformation of the pump body

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