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Composition, preparation method of heat transfer medium, phase-change refrigeration method of hydrate and phase-change refrigeration system of hydrate

A technology of composition and hydrate accelerator, which is applied in the direction of refrigeration and liquefaction, refrigerators, refrigeration components, etc., can solve the problems of hydrate accumulation and sedimentation blockage in the use of cooling capacity, and achieve great economic and social value and additional energy consumption Low, energy efficient and reasonable effect

Active Publication Date: 2019-01-25
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The object of the present invention is to provide a composition and a heat transfer method to overcome the problem of cooling capacity utilization of seawater and groundwater water source heat pumps in the prior art and the problem of hydrate accumulation and precipitation blocking pipes in the hydrate phase change refrigeration cycle. Preparation method of medium and a hydrate phase-change refrigeration method and a hydrate phase-change refrigeration system

Method used

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  • Composition, preparation method of heat transfer medium, phase-change refrigeration method of hydrate and phase-change refrigeration system of hydrate

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Embodiment approach

[0038] According to one embodiment of the present invention, based on the total amount of the composition, the content of carbon dioxide is 2-20% by weight, the content of water is 10-60% by weight, and the content of oil-based carrier fluid is 20-80% by weight , the usage amount of the hydrate accelerator and the slurry stabilizer is respectively 0.01-35% by weight and 0.01-4% by weight. Preferably, based on the total amount of the composition, the content of water is 20-50% by weight, the content of oil-based carrier liquid is 21-70% by weight, and the amount of hydrate accelerator and slurry stabilizer is 2-20% respectively. % by weight and 0.1 to 2% by weight. Preferably, relative to the total amount of the composition, the content of carbon dioxide is 5-15% by weight, the content of water is 20-50% by weight, the content of oil-based carrier fluid is 20-70% by weight, the hydrate accelerator and the slurry The dosages of the stabilizers are 4-15% by weight and 0.5-1.5% b...

Embodiment 1

[0078] This example is used to illustrate the preparation method of the heat transfer medium, the hydrate phase-change refrigeration method and the hydrate phase-change refrigeration system of the present invention.

[0079] (1) Preparation of refrigerant working fluid:

[0080] Mix 50 parts by mass of water, 11.76 parts by mass of hydrate accelerator tetrahydrofuran, 0.5 parts by mass of inhibitor sorbitol tristearate and 0.5 parts by mass of surfactant Span 80, and then mix 22.8 parts by mass of No. 5 mineral white oil (commercially purchased from Mojiezuo Petrochemical (Shanghai) Co., Ltd., the brand is MOROKE) is mixed evenly to form a stable oil-water emulsion, which is the refrigerant;

[0081] (2) Phase change refrigeration:

[0082] Add oil-water emulsion figure 1 In the reaction tank of the first heat exchange device 3 of the shown phase-change refrigeration system, then feed 14.44 parts by mass of high-pressure carbon dioxide to fully mix it with the refrigerant to...

Embodiment 2

[0086] This example is used to illustrate the preparation method of the heat transfer medium, the hydrate phase-change refrigeration method and the hydrate phase-change refrigeration system of the present invention.

[0087] (1) Preparation of refrigerant working fluid:

[0088] With the water of 35 mass parts, the hydrate accelerator cyclopentane of 4.0 mass parts, the hydrate accelerator tetrabutylammonium bromide of 4.0 mass parts, the polymerization inhibitor glyceryl monostearate of 0.5 mass parts and 0.5 mass parts 45.9 parts by mass of the surfactant Tween 80 were mixed uniformly, and then 45.9 parts by mass of No. 5 mineral white oil (commercially purchased from Mojiezuo Petrochemical (Shanghai) Co., Ltd., the trade mark was MOROKE / Morunke) were mixed uniformly to form a stable The oil-water emulsion is the refrigerant;

[0089] (2) Phase change refrigeration:

[0090] Add oil-water emulsion figure 1 In the reaction tank of the first heat exchange device 3 of the s...

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Abstract

The invention provides a composition, a preparation method of a heat transfer medium, a phase-change refrigeration method of hydrate and a phase-change refrigeration system of the hydrate. The composition contains carbon dioxide and a refrigeration working medium; the refrigeration working medium contains water, an oil-based carrying solution, a hydrate accelerant and a slurry stabilizing agent, wherein the carbon dioxide is dissolved into water; the hydrate accelerant and the slurry stabilizing agent are dissolved into the oil-based carrying solution and / or the water. The composition providedby the invention has the advantages that continuous cold source supply of the nature is sufficiently utilized, properties of a hydrate generation manner of simplicity and high refrigeration and coldenergy accumulation are utilized and characteristics of low additional energy consumption, energy saving and environment protection, low operation cost and safety and reliability are utilized to simultaneously overcome the problem of cold energy utilization of seawater and underground water water-source heat pump in the prior art and the problem of pipeline blocking caused by hydrate agglomerationand sedimentation in a hydrate phase-change refrigeration cycle. The invention provides an effective way for realizing efficient and reasonable utilization of energy and actual utilization of hydratephase-change refrigeration, and has extremely great economic and social values.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a preparation method of a composition and a heat transfer medium, a hydrate phase change refrigeration method and a phase change refrigeration system using the heat transfer medium. Background technique [0002] There is a shortage of energy and an increasingly serious environment in our country, and these problems have seriously hindered the development of social economy, and the constraints of energy resources and environmental problems on economic and social development continue to strengthen. As the use of air-conditioning increases year by year, the proportion of air-conditioning units in power consumption is increasing. At the same time, the refrigerant used in air-conditioning has a strong greenhouse gas effect. Therefore, reducing the use of high-energy-consuming and high-pollution air conditioners and developing new refrigeration technologies are of great significa...

Claims

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Application Information

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IPC IPC(8): C09K5/06F25B30/02
CPCC09K5/066F25B30/02Y02P20/10
Inventor 陈立涛张宁涛孙宝江高永海王志远赵佳飞
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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