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A mobile emergency natural gas supply system and mobile emergency natural gas supply method

A gas supply system and natural gas technology, which is applied to pipeline systems, container discharge methods, fixed-capacity gas storage tanks, etc., can solve the problems of inability to provide continuous and uninterrupted gas supply, low gas phase outlet temperature, and difficulty in replacing gas sources. Achieve the effect of quick response, stable temperature and fast start-up

Active Publication Date: 2015-10-28
SHENZHEN GAS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the currently used mobile natural gas gasification station is gasified through an air-temperature gasifier. Although this method can solve the temporary gas supply problem, the gas supply volume is small, the gas phase outlet temperature is low, and the gas source is not easy to replace. , unable to provide continuous uninterrupted gas supply

Method used

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  • A mobile emergency natural gas supply system and mobile emergency natural gas supply method
  • A mobile emergency natural gas supply system and mobile emergency natural gas supply method
  • A mobile emergency natural gas supply system and mobile emergency natural gas supply method

Examples

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Embodiment 1

[0045] See attached Figure 1 to Figure 2 , this embodiment provides a mobile emergency natural gas supply system, including a skid-mounted vehicle 1, on which a water-bath vaporizer 2, an air-temperature vaporizer 3, and a first liquid natural gas inlet pipeline are installed. J1, the second liquid natural gas inlet pipeline J2, the first gaseous natural gas outlet pipeline C1 and the second gaseous natural gas outlet pipeline C2; ​​the connection between the first liquid natural gas inlet pipeline J1 and the air-temperature vaporizer 3 The liquid phase inlet port 33 is connected; the second liquid natural gas inlet pipeline J2 and the second gaseous natural gas outlet pipeline C2 are respectively connected to the liquid phase inlet port 21 and the gas phase outlet port 22 of the water-bath gasifier 2, so The gas phase outlet port 34 of the air-temperature gasifier 3 is connected to the burner in the water-bath gasifier 2, and one end of the first gaseous natural gas outlet p...

Embodiment 2

[0060] see image 3 , because China's gas industry pipelines use a large number of gas plastic pipes (usually PE pipes), and the temperature range of plastic pipes is -5 ° C ~ 40 ° C, and in the present invention, the gas that comes out of the outlet end of the water bath type gasifier The temperature of gaseous natural gas may be too high, so it is not suitable to be directly connected to the gas supply network.

[0061] Therefore, as a further improvement of the present invention, this embodiment differs from the previous embodiment in that:

[0062] The mobile emergency natural gas supply system also includes a static mixer 11 installed on the gaseous natural gas outlet main pipeline, and the second liquid natural gas inlet pipeline J2 is connected to the inlet end of the static mixer 11 through a bypass pipe 12 111 connection, the first gaseous natural gas outlet pipeline C1 and the second gaseous outlet pipeline C2 are connected in parallel to the outlet end of the stati...

Embodiment 3

[0064] see Figure 4 In order to make the temperature of the gaseous natural gas finally supplied to the underground gas supply pipeline network be within the range of -5°C to 40°C, the following technical solutions different from those in Embodiment 2 can also be adopted, the difference being that the static mixer 15 is installed on On the second gaseous natural gas outlet pipeline C2, the second liquid natural gas inlet pipeline J2 is connected to the inlet end 151 of the static mixer 15 through a bypass pipe 16, and the bypass pipe 16 is provided with a The LNG regulating valve 17 electrically connected to the control system, and the outlet end of the static mixer 15 is installed with a temperature transmitter 18 electrically connected to the control system.

[0065] The gaseous natural gas that enters the second gaseous natural gas outlet pipeline C2 from the outlet end of the water-bath gasifier 2 can be mixed with the liquefied natural gas that enters from the second liq...

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Abstract

The invention provides a mobile emergency natural gas supply system. The mobile emergency natural gas supply system comprises a water bath type vaporizer which is arranged on a skid-mounted vehicle, an ambient air vaporizer, a first liquefied natural gas inlet pipeline, a second liquefied natural gas inlet pipeline, a first gaseous natural gas outlet pipeline and a second gaseous natural gas outlet pipeline; the first liquefied natural gas inlet pipeline is connected with a liquid phase inlet end of the ambient air vaporizer; the second liquefied natural gas inlet pipeline and the second gaseous natural gas outlet pipeline are respectively connected with a fluid phase inlet end and a gaseous phase outlet end of the water bath type vaporizer; a gaseous phase outlet end of the ambient air vaporizer is connected with a combustor which is arranged inside the water bath type vaporizer; one end of the first gaseous natural gas outlet pipeline is connected with the gaseous phase outlet end of the water bath type vaporizer; and the other end of the first gaseous natural gas outlet pipeline is connected with the combustor which is arranged inside the water bath type vaporizer. The invention also provides a mobile emergency natural gas supply method using the mobile emergency natural gas supply system. The mobile emergency natural gas supply system and the mobile emergency natural gas supply method have the advantages of being large in gas supply capacity, high in temperature of the gaseous phase outlets, capable of achieving continuous gas supply, rapid in starting and capable of adapting to a mobile gas supply requirement.

Description

technical field [0001] The invention relates to an emergency natural gas supply system, in particular to a mobile emergency natural gas supply system and a mobile emergency natural gas supply method. Background technique [0002] The main component of liquefied natural gas is methane, which is colorless, odorless, non-toxic and non-corrosive. Its volume is about 1 / 600 of the volume of the same volume of gaseous natural gas, its weight is only about 45% of the same volume of water, and its calorific value is 52MMBtu / t (1MMBtu=2.52×10^8cal). Its English abbreviation is LNG (Liquefied Natural Gas). As an efficient and clean energy source, natural gas is becoming more and more popular. Many countries have listed natural gas as the preferred fuel, and the proportion of natural gas in energy supply has increased rapidly. Liquefied natural gas is growing at a high rate of about 12% per year, making it one of the fastest growing energy industries in the world. In China, natural g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17D1/02F17C7/04F17D3/01
Inventor 陈秋雄廖烈豪陈运文安成名陆涵罗彬
Owner SHENZHEN GAS CORP
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