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New method for liquid chlorine vaporization

A new method, liquid chlorine technology, applied in the method of container discharge, gas/liquid distribution and storage, and equipment discharged from pressure vessels, etc., can solve the problems of adverse effects on the production site environment, difficult to control temperature, large steam, etc. , to achieve the effect of significant energy saving and emission reduction, sufficient vaporization, and reduced energy consumption

Inactive Publication Date: 2013-09-11
JIANGSU TIANYUAN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is not only difficult to control the temperature, but also consumes a lot of energy such as steam, and has a negative impact on the environment of the production site

Method used

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  • New method for liquid chlorine vaporization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1. Turn on the water inlet valve and water outlet valve of the vaporized water (the circulating cooling water of the condenser in the phosphorus trichloride workshop) on the liquid chlorine vaporization tank in turn, and check that the inlet water temperature is 20-35°C.

[0025] 2. Slowly open the liquid phase outlet valve on the liquid chlorine storage tank, and then slowly open the liquid chlorine inlet valve on the vaporization tank to introduce liquid chlorine into the vaporization system. At the same time, carefully check the pipes, valves, flanges, etc. to ensure no leakage .

[0026] 3. When the pressure of the vaporization discharge pipe reaches 0.2Mpa, open the chlorine gas outlet valve of the vaporization system and the chlorine gas inlet valve of the chlorine gas buffer tank in sequence, and then guide the vaporized chlorine gas into the chlorine gas buffer tank.

[0027] 4. When the pressure of the chlorine buffer tank reaches 0.4Mpa, open the chlorine valv...

Embodiment 2

[0030] 1. Turn on the water inlet valve and water outlet valve of the vaporized water (the circulating cooling water of the condenser in the phosphorus oxychloride workshop) on the liquid chlorine vaporization tank in turn, and check that the inlet water temperature is 20-35°C.

[0031] 2. Slowly open the liquid phase outlet valve on the liquid chlorine storage tank, and then slowly open the liquid chlorine inlet valve on the vaporization tank to introduce liquid chlorine into the vaporization system. At the same time, carefully check the pipes, valves, flanges, etc. to ensure no leakage .

[0032] 3. When the pressure of the vaporization discharge pipe reaches 0.2Mpa, open the chlorine gas outlet valve of the vaporization system and the chlorine gas inlet valve of the chlorine gas buffer tank in sequence, and then guide the vaporized chlorine gas into the chlorine gas buffer tank.

[0033] 4. When the pressure of the chlorine buffer tank reaches 0.4Mpa, open the chlorine valv...

Embodiment 3

[0036] 1. Turn on the water inlet valve and water outlet valve of the vaporized water (the circulating cooling water of the condenser in the phosphorus trichloride workshop) on the liquid chlorine vaporization tank in turn, and check that the inlet water temperature is 20-35°C.

[0037] 2. Slowly open the liquid phase outlet valve on the liquid chlorine storage tank, and then slowly open the liquid chlorine inlet valve on the vaporization tank to introduce liquid chlorine into the vaporization system. At the same time, carefully check the pipes and valves, flanges, etc. to ensure that there are no leaks.

[0038] 3. When the pressure of the vaporization discharge pipe reaches 0.2Mpa, open the chlorine gas outlet valve of the vaporization system and the chlorine gas inlet valve of the chlorine gas buffer tank in sequence, and then guide the vaporized chlorine gas into the chlorine gas buffer tank.

[0039] 4. When the pressure of the chlorine buffer tank reaches 0.4Mpa, open th...

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Abstract

The invention discloses a new method for liquid chlorine vaporization. Cooling water which is generated in a phosphorus trichloride or phosphorus oxychloride production process is utilized to heat chlorine gas so as to vapourize the chlorine gas. Compared with the prior art, the new method provided by the invention has the advantages that (1), the energy consumption is greatly reduced; (2) the operational safety is greatly improved; (3), production adopting a chlorine productive unit (phosphorus trichloride and phosphorus trichloride production department) is smooth; (4) the environment of production field is greatly improved; (5) the service life of equipment is obviously prolonged. The new method is an environment-friendly chemical industry process, meets development direction of safe production and energy saving and emission reduction, and has good industrialized application prospect.

Description

a technical field [0001] The invention relates to a new method for vaporizing liquid chlorine, which belongs to the technical field of chemical material preparation. This method is applicable to the occasion where the cooling water produced in the production process of phosphorus trichloride or phosphorus oxychloride is used to heat chlorine gas to vaporize it. Two background technology [0002] Liquid chlorine is a basic chemical raw material, which can be used in metallurgy, textile, papermaking and other industries. It is a raw material for the preparation of phosphorus trichloride, phosphorus oxychloride, synthetic hydrochloric acid, polyvinyl chloride, plastics, and pesticides. [0003] Liquid chlorine is a low-pressure liquefied gas. Almost all chlorine gas used in factories is stored and transported in the form of liquid, and it must be vaporized before being used in production units. my country's liquid chlorine vaporization process generally adopts three methods: ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17C7/04
Inventor 李亚平朱叔平马加宁
Owner JIANGSU TIANYUAN CHEM
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