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Method for producing gas hydrated compound and device

A gas hydrate and gas generation technology, applied in the direction of mixing methods, chemical methods for reacting liquid and gas media, chemical instruments and methods, etc., can solve problems such as short induction time, large energy consumption, and insufficient density of hydrates , to achieve the effects of short induction time, good heat transfer performance, and dense gas hydrate

Inactive Publication Date: 2008-09-03
UNIV OF SHANGHAI FOR SCI & TECH
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Problems solved by technology

[0006] The present invention proposes a method and device for generating gas hydrates in view of the problems of high energy consumption and insufficient compactness of the generated hydrates in the current hydrate generation technology, which has a short induction time and the generated gas hydrates are very dense , high energy storage density, and good heat transfer performance, making gas hydrate cold storage or gas storage technology further practical

Method used

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  • Method for producing gas hydrated compound and device
  • Method for producing gas hydrated compound and device
  • Method for producing gas hydrated compound and device

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Embodiment Construction

[0019] like figure 1 The static fast-generating gas hydrate reaction tank 200 is shown. As shown in the figure, the reaction tank 200 is mainly composed of a stainless steel tank body 8 with thermal insulation material, a serpentine heat exchanger 9 with vertical metal fins, two ends respectively connected to the liquid water phase space 3 and the liquid hydrate space 4 It is composed of connected crystallization promoting pumps 6, and outside the reaction tank is a reactant injection pipe 1, a reactant discharge pipe 7, a heat exchanger input port 11, a heat exchanger output port 10, and a water outlet pipe 5.

[0020] like figure 2 The cross-sectional schematic diagram of the serpentine heat exchanger shown, the heat exchange tube 9A of the serpentine heat exchanger 9 is covered with vertical metal fins 9B with large thermal conductivity and large surface polar free energy, and the height of the metal fins 9B penetrates through. at the vertical height of the entire reacta...

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Abstract

The invention relates to a method for synthesizing gas hydrates and a device thereof. The device mainly comprises a snake-shaped heat exchanger with vertical metal fins, a crystal growth pump and a steel gas hydrate reaction tank with heat-insulating coating. After the snake-shaped heat exchanger reduces the temperature inside the tank below a critical decomposition temperature, the crystal growth pump is started to allow the liquid water to pass through the bottom of a liquid refrigerant and enter the refrigerant phase and thereby enhancing the mixture of water and the refrigerant and simultaneously enhancing the heat exchange between the heat exchanger and reactants. At the beginning of gas hydrate synthesis, the crystal growth pump is shut down, so that the gas hydrate grows upward along the vertical metal fins in the refrigerant phase until the whole reactants are used up. The inventive device has the advantages of short induction time for hydrate synthesis, high density of synthetic gas hydrate, high energy-storage density, and good heat exchange performance.

Description

technical field [0001] The present invention relates to a method and device for generating gas hydrate, in particular to a method and device for generating gas hydrate by static rapid compaction which can be used for gas hydrate energy storage or gas storage. Background technique [0002] With the increasing popularity of refrigeration and air-conditioning devices, the "peak-to-valley difference" of electrical load caused by refrigeration and air-conditioning has become larger and larger, resulting in insufficient peak power and excessive valley power. In order to shift peaks and fill valleys and improve the power generation efficiency of power plants, power departments in most regions of my country have formulated time-of-use tariff policies to encourage users to adopt cold storage air conditioning technology. At present, the cold storage working fluids used in cold storage air conditioners are mainly water, ice and eutectic salt, but they all have unsatisfactory shortcomin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J10/00B01F3/04F17C11/00C09K5/00
Inventor 谢应明刘道平李刚
Owner UNIV OF SHANGHAI FOR SCI & TECH
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