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Plate-shell type middle fluid type gasifier

A technology of plate-shell type and vaporizer, which is applied in the direction of pressure vessels, non-pressure vessels, fixed-capacity gas storage tanks, etc., and can solve the problems of low heat exchange efficiency, high manufacturing cost, and large volume of shell-and-tube heat exchangers , to achieve the effects of reducing manufacturing costs, installation and maintenance costs, compact weight, and volume reduction

Active Publication Date: 2014-05-28
NO 711 RES INST CHINA SHIPPING HEAVY IND GRP
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, the shell-and-tube heat exchanger has low heat exchange efficiency, large volume, heavy weight, and high manufacturing cost.

Method used

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Embodiment Construction

[0020] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0021] This embodiment provides a plate-shell type intermediate fluid vaporizer, which is composed of three-stage plate-shell heat exchangers. Compared with the traditional shell-and-tube IFV, it is small in size, light in weight, low in equipment cost, and can improve equipment reliability and lifespan.

[0022] The structure of the plate-shell intermediate fluid gasifier is as follows: figure 2 As shown, it is composed of intermediate medium vaporizer E1, LNG vaporizer E2 and NG thermostat heater E3.

[0023] Among them, the intermediate medium vaporizer E1 adopts a flooded evaporator, such as image 3 shown. It includes an evaporator shell 19 and a heat exchange core 15; wherein the evaporator shell 19 is made of carbon steel or stainless steel, and the heat exchange core 15 is made of titanium. The evaporator shell 19 is a cylindrical structure, t...

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Abstract

The invention discloses a plate-shell type middle fluid type gasifier which is small in size, light in weight and capable of effectively reducing equipment cost, improving the reliability of the equipment and prolonging the service life of the equipment. The gasifier consists of a full-liquid type evaporator, a plate-shell type heat exchanger A and a plate-shell type heat exchanger B, wherein a plate travel runner inlet of the plate-shell type heat exchanger is used for inputting a medium to be gasified; the plate travel runner inlet is connected with a shell travel runner inlet of the plate-shell type heat exchanger B; the gasified medium is output from the shell travel outlet of the plate-shell type heat exchanger B; the plate travel runner inlet of the plate-shell type heat exchanger B is communicated with seawater; the plate travel runner outlet of the plate-shell type heat exchanger B is connected with the plate travel runner inlet of the full-liquid type evaporator; the plate travel runner outlet of the full-liquid type evaporator is communicated with the seawater; the shell travel runner inlet is connected with the shell travel runner outlet of the plate-shell type heat exchanger A; the shell travel runner outlet is connected with the shell travel runner inlet of the plate-shell type heat exchanger A.

Description

technical field [0001] The invention relates to an intermediate fluid gasifier, in particular to a plate-shell intermediate fluid gasifier. Background technique [0002] Liquefied natural gas (LNG) receiving station is a terminal station for receiving offshore LNG transportation, where LNG is received, stored, gasified, and exported to the downstream natural gas (NG) pipeline network. In the LNG receiving station, the gasifier is the main equipment of the gasification system. At present, there are mainly four types of gasifiers used in LNG receiving stations around the world, namely open rack gasifier (ORV), submerged combustion gasifier (SCV), intermediate fluid gasifier (IFV) and ambient air gasifier. device (AAV). In the intermediate fluid vaporizer (IFV), since seawater does not directly exchange heat with low-temperature LNG, but transfers heat through an intermediate medium with a very low freezing point, the problem of freezing is completely avoided, so it is widely...

Claims

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Application Information

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IPC IPC(8): F17C7/04F17C9/02F28F21/08
Inventor 栾辉宝夏晓宇郑伟业迟浩淼王崧张世程
Owner NO 711 RES INST CHINA SHIPPING HEAVY IND GRP
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