Device for denoising, ice blockage prevention and cold energy utilization of natural gas pipeline

A technology for natural gas pipelines and natural gas, applied in valve heating/cooling devices, pipeline heating/cooling, valve devices, etc., can solve problems such as noise of natural gas pipeline pressure regulating valves, achieve no effect on flow, and have obvious effects of cold energy utilization , the effect of reducing noise

CN103216700AActive Publication Date: 2013-07-24PIPECHINA SOUTH CHINA CO
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2013-07-24

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Abstract

The invention relates to a device for denoising, ice blockage prevention and cold energy utilization of a natural gas pipeline. The device relates to the technical field of pipeline systems, and is characterized in that two sections of natural gas pipelines (4) are connected into a whole through a pressure regulating valve (2); a heat exchange flat pipe (1) with an outer coating (3) is wrapped on the whole natural gas pipeline (4) and the pressure regulating valve (2); a solar heater (8), a summer indoor cold supply system for working and living areas (9) and a natural gas heating furnace (10) are connected in parallel between a water segregator (7) and a water collector (11); the water collector (11) is provided with a pipeline connected to one end of the heat exchange flat pipe (1); the other end of the heat exchange flat pipe (1) is connected with a circulating pump (6) through the pipeline and then connected to the water segregator (7); and a constant pressure tank (5) is connected to an inlet of the circulating pump (6). The device can control aerodynamic noise of the pressure regulating valve of the natural gas pipeline to be within a state-specified standard, is large in noise reduction, alleviates the problem of ice blockage, is obvious in cold energy utilization effect, does not affect flow rate, is simple and convenient to install, and is low in cost.
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Description

technical field

[0001] The invention is a device for noise reduction, ice blockage prevention and cold energy utilization of natural gas pipelines. It relates to the technical field of piping systems. Background technique

[0002] The pressure regulating valve in the natural gas pipeline station is the main source of noise. The noise generated after the ordinary pressure regulating valve without noise reduction design can reach more than 100dB(A) through field measurement. Due to the high water content of the natural gas to be transported and the cooling of the ambient temperature, the pressure regulating valve will be blocked by ice, which will affect the transportation. The temperature of the transported natural gas decreases after being depressurized by the pressure regulating valve. If the cold energy produced can be utilized, additional economic benefits will be generated.

[0003] At present, there is an electric heating type anti-icing injection pipe technology, whi...

Examples

Embodiment Construction

[0027] Embodiment. The specific embodiment of the present invention is described with this example and the present invention is described further. This example is an experimental prototype, its composition is as follows figure 1 shown. It includes heat exchange flat tube 1, pressure regulating valve 2, outer coating layer 3, natural gas pipeline 4, constant pressure tank 5, circulation pump 6, water separator 7, solar heater 8, indoor cooling system for working and living areas in summer 9, Natural gas heating furnace 10, water collector 11, inlet natural gas 12, outlet natural gas 13, low temperature water 14 and high temperature water 15. The pressure regulating valve 2 connects the two natural gas pipelines 4 into one body, and the integral natural gas pipeline 4 and the pressure regulating valve 2 are covered with a heat exchange flat tube 1 with an outer coating layer 3; the water separator 7 and the water collector 11 are connected in parallel Solar heater 8, summer in...