CN102635779B - Liquid chlorine vaporizing technology and system - Google Patents
Liquid chlorine vaporizing technology and system Download PDFInfo
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- CN102635779B CN102635779B CN201210125256.6A CN201210125256A CN102635779B CN 102635779 B CN102635779 B CN 102635779B CN 201210125256 A CN201210125256 A CN 201210125256A CN 102635779 B CN102635779 B CN 102635779B
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Abstract
The invention discloses a new liquid chlorine vaporizing technology and system. The new liquid chlorine vaporizing technology comprises a liquid chlorine storage tank feeding process, a liquid chlorine vaporizing process and a waste gas treatment process, wherein the liquid chlorine vaporizing process comprises the following steps: a heat medium used for liquid chlorine vaporization is a heat transfer agent which does not react with chlorine gas, firstly the heat transfer agent is heated by using steam, and the heated heat transfer agent conducts circulating heat exchange with liquid chlorine so as to achieve the purpose of liquid chlorine vaporization. The system comprises a liquid chlorine vaporizing device and a heat transfer agent heater, wherein the heat transfer agent heater is connected with the liquid chlorine vaporizing device through a pipeline, the heat transfer agent which does not react with the chlorine gas circulates in the heat transfer agent heater and the liquid chlorine vaporizing device, and the heat transfer agent heater is connected with a steam circulating device. The technology and the system have the beneficial effects that after adopting the technology, as chloride does not react with the heat transfer agent, corrosion cannot be caused, thus avoiding safety and environmental protection problems caused by leakage, greatly improving the safety of the liquid chlorine vaporizing device and enhancing the safety.
Description
Technical field
The present invention relates to a kind of liquid chlorine vaporization new process and system, be applicable to the field of methane chloride device and the liquid chlorine vaporization device that all are produced with gas chlorine.
Background technique
Domestic existing liquid chlorine vaporization all adopts hot water or low pressure steam heating vaporization, due to equipment making and operation reason, inevitably occur leaking, once that consequence appears leaking in chlorine liquid carburetor is very serious, equipment occurs after seepage because water reacts rapidly generation hypochlorous acid with chlorine, hypochlorous corrosivity is very strong, breakthrough is strengthened rapidly, and it is large that chlorine and water engaging surface become rapidly, because reaction is stronger, be seriously to blast, danger is larger.
In former technique (see figure 1), liquid chlorine adds thermal recovery hot water or low pressure steam.
Summary of the invention
The object of the invention is for overcoming above-mentioned the deficiencies in the prior art, a kind of safer liquid chlorine vaporization new process and system are provided.
For achieving the above object, the present invention adopts following technical proposals:
A kind of liquid chlorine gasification process, comprise liquid chlorine storage tank fill process, liquid chlorine vaporizing process and waste gas treatment process, described liquid chlorine vaporizing process is: for the heating agent of liquid chlorine vaporization, be the heating medium not reacting with chlorine, this heating medium is first used steam heating, heating medium after heating carries out cycle heat exchange with liquid chlorine again, reaches the object of liquid chlorine vaporization; The described heating medium not reacting with chlorine is synthetic conduction oil or chlorinated hydrocabon.
The described steam that is 0.2～0.4MPa for the steam heating.
In to the process of heating medium heating, first set heating medium temperature (80～90 ℃), the aperture that the temperature signal that then utilizes collection is controlled heating steam pneumatic control valve automatically realizes automatically and controlling the temperature of heating medium.
At heating medium, carry out by pump, carrying out pump circulation on the pipeline of cycle heat exchange of liquid chlorine vaporization.
A kind of liquid chlorine vaporization system, it comprises liquid chlorine gasifier capable and heating medium heater, described heating medium heater connects described chlorine liquid carburetor by pipeline, circulation has not the heating medium reacting with chlorine in heating medium heater and chlorine liquid carburetor, and described heating medium heater is connected with steam circulating device; The described heating medium not reacting with chlorine is synthetic conduction oil or chlorinated hydrocabon.
Described heating medium heater is tubular heat exchanger.
The steam that is 0.2～0.4MPa for the steam heating in described steam circulating device.
Described heating medium heater is provided with automatic temperature control apparatus, that is: the aperture of utilizing temperature signal automatically to control heating steam pneumatic control valve by setting heating medium temperature (80--90 ℃) is controlled the temperature of heating medium, thereby realize automatically, controls.Automatic temperature control apparatus comprises temperature transducer, change-over circuit, DCS, control loop.On the pipeline between heating medium heater and chlorine liquid carburetor, be provided with forced circulation pump.
Described forced circulation pump is located at heating medium and from chlorine liquid carburetor, flows between the pipeline of heating medium heater, and forced circulation pump is taken out the heating medium after heat exchange between chlorine liquid carburetor pipe and entered in heating medium heater tube.
Described chlorine liquid carburetor also connects a release groove, and release groove is connected with chlorine caustic wash tower.Chlorine liquid carburetor pipe carries out release of pressure by release groove, and is connected to chlorine caustic wash tower and discharges through innocuity treatment again.
On the pipeline in connection liquid chlorine source, swirl flow nozzle is installed, this swirl flow nozzle is located in chlorine vaporizer.Liquid chlorine is to enter with cyclone mode in the bottom of chlorine liquid carburetor, it is liquid chlorine fully makes vaporizer bottom when entering vaporizer liquid chlorine turbulence by swirl flow nozzle, liquid chlorine after making fresh liquid chlorine and concentrating fully mixes, thereby avoids static formation dead band to avoid agene to gather.
The invention has the beneficial effects as follows, adopt after this technology, because chlorine and this heating medium do not react, can not cause corrosion, with regard to safety and the environmental issue having avoided causing due to leakage, liquid chlorine vaporization device Security is improved greatly, improved Security.
Accompanying drawing explanation
Fig. 1 is structural representation in prior art;
Fig. 2 is structural representation of the present invention.
Wherein: 1. chlorine liquid carburetor, 2. heating medium heater, 3. Chlorine Buffer Vessel, 4. release groove, 5, accident chlorine groove, 6, chlorine caustic wash tower, 7, forced circulation pump, 8, heating medium storage tank.
Embodiment
Below by instantiation, the present invention will be further elaborated, should be noted that following explanation is only in order to explain the present invention, does not limit its content.
The present embodiment comprises a kind of liquid chlorine gasification process, comprise liquid chlorine storage tank fill process, liquid chlorine vaporizing process and waste gas treatment process, described liquid chlorine vaporizing process is: for the heating agent of liquid chlorine vaporization, be the heating medium not reacting with chlorine, this heating medium is first used steam heating, heating medium after heating carries out cycle heat exchange with liquid chlorine again, reaches the object of liquid chlorine vaporization; The described heating medium not reacting with chlorine is synthetic conduction oil or chlorinated hydrocabon.
The described steam that is 0.3MPa for the steam heating.
In to the process of heating medium heating, first set heating medium temperature (between 80-90 ℃), the aperture that the temperature signal that then utilizes collection is controlled heating steam pneumatic control valve automatically realizes automatically and controlling the temperature of heating medium.
At heating medium, carry out by pump, carrying out pump circulation on the pipeline of cycle heat exchange of liquid chlorine vaporization.
The present embodiment also comprises a kind of liquid chlorine vaporization system, and it comprises liquid chlorine gasifier capable and heating medium heater 2, and described heating medium heater 2 is tubular heat exchanger.Described heating medium heater 2 connects described chlorine liquid carburetor 1 by pipeline, heating medium heater 2 and the interior circulation of chlorine liquid carburetor 1 have not the heating medium reacting with chlorine, described heating medium heater 2 is that heating medium storage tank 8 is connected with steam circulating device, the steam that is 0.3MPa for the steam heating in described steam circulating device, heating medium heats liquid chlorine between chlorine liquid carburetor 1 pipe and makes its vaporization with sending into after 0.3MPa steam heating." heating medium not reacting with chlorine " is chlorinated hydrocabon.On the pipeline between heating medium heater 2 and chlorine liquid carburetor 1, be provided with forced circulation pump 7.
Heating medium flows to from chlorine liquid carburetor 1 between the pipeline of heating medium heater 2 and is provided with forced circulation pump 7, and forced circulation pump 7 is taken out the heating medium after heat exchange between chlorine liquid carburetor 1 pipe and entered in heating medium heater 2 pipes.After heating medium 2 heating, enter the liquid chlorine in heating pipe between chlorine liquid carburetor 1 pipe and make its vaporization, the gas chlorine after vaporization is sent to user after entering Chlorine Buffer Vessel 3 again.Described heating medium heater 2 is provided with automatic temperature control apparatus, controls the temperature of heating medium by setting heating medium temperature (between the 80-90 ℃) aperture of utilizing temperature signal automatically to control heating steam pneumatic control valve that is:, thereby realize automatically, controls.Automatic temperature control apparatus comprises temperature transducer, change-over circuit, DCS, display circuit, data input module, control loop.Described chlorine liquid carburetor 1 also connects a release groove 4, and release groove 4 is connected with chlorine caustic wash tower 6.Chlorine liquid carburetor 1 pipe carries out release of pressure by release groove 4, and is connected to chlorine caustic wash tower 6(or is the tower of removing the evil) through innocuity treatment, discharge again.When heating system superpressure, release groove 4 automatic discharging pressures enter chlorine caustic wash tower 6, and when liquid chlorine vaporization system boosts at first and replaces, chlorine is gone out and entered chlorine caustic wash tower 6 and process in Chlorine Buffer Vessel 3.Described release groove 4 is when heating medium loop heating system superpressure, and releasing pressure automatically, maintains system pressure.
The effect of accident chlorine groove is the liquid chlorine in 1 to be discharged into 5 accident chlorine storage tanks when 1 chlorine liquid carburetor breaks down, and reduces the discharge amount of liquid chlorine.
On the pipeline in connection liquid chlorine source, swirl flow nozzle is installed, this swirl flow nozzle is located in chlorine vaporizer.Liquid chlorine is to enter with cyclone mode in the bottom of chlorine liquid carburetor 1, it is liquid chlorine fully makes vaporizer bottom when entering vaporizer liquid chlorine turbulence by swirl flow nozzle, liquid chlorine after making fresh liquid chlorine and concentrating fully mixes, thereby avoids static formation dead band to avoid agene to gather.
Claims (6)
1. a liquid chlorine gasification process, comprise liquid chlorine storage tank fill process, liquid chlorine vaporescence and waste gas treatment process, it is characterized in that, described liquid chlorine vaporescence is: for the heating agent of liquid chlorine vaporization, be the heating medium not reacting with chlorine, this heating medium is first used steam heating, heating medium after heating carries out cycle heat exchange with liquid chlorine again, reaches the object of liquid chlorine vaporization; The described heating medium not reacting with chlorine is chlorinated hydrocabon; The described steam that is 0.2～0.4MPa for the steam heating.
2. a liquid chlorine vaporization system, it comprises chlorine liquid carburetor, it is characterized in that, also comprise heating medium heater, described heating medium heater connects described chlorine liquid carburetor by pipeline, circulation has not the heating medium reacting with chlorine in heating medium heater and chlorine liquid carburetor, and described heating medium heater is connected with steam circulating device; The described heating medium not reacting with chlorine is chlorinated hydrocabon; Described heating medium heater is tubular heat exchanger.
3. a kind of liquid chlorine vaporization system according to claim 2, is characterized in that, the steam that is 0.2～0.4MPa for the steam heating in described steam circulating device.
4. a kind of liquid chlorine vaporization system according to claim 2, it is characterized in that, at heating medium, from chlorine liquid carburetor, flow between the pipeline of heating medium heater and be provided with forced circulation pump, forced circulation pump is taken out the heating medium after heat exchange between chlorine liquid carburetor pipe and is entered in heating medium heater tube.
5. a kind of liquid chlorine vaporization system according to claim 2, is characterized in that, described chlorine liquid carburetor also connects a release groove, and release groove is connected with chlorine caustic wash tower.
6. a kind of liquid chlorine vaporization system according to claim 2, is characterized in that, on the pipeline in connection liquid chlorine source, swirl flow nozzle is installed, and this swirl flow nozzle is located in chlorine liquid carburetor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210125256.6A CN102635779B (en) | 2012-04-26 | 2012-04-26 | Liquid chlorine vaporizing technology and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210125256.6A CN102635779B (en) | 2012-04-26 | 2012-04-26 | Liquid chlorine vaporizing technology and system |
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| CN102635779A CN102635779A (en) | 2012-08-15 |
| CN102635779B true CN102635779B (en) | 2014-05-07 |
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| CN104315337B (en) * | 2014-10-14 | 2016-08-17 | 开封空分集团有限公司 | A kind of poisonous and harmful cryogenic liquid tapping equipment and method |
| CN105299641A (en) * | 2015-11-10 | 2016-02-03 | 深圳万兴顺投资有限公司 | Gasification device and combustion system of liquid light dydrocarbon fuel |
| CN107869651B (en) * | 2017-10-28 | 2023-06-30 | 南通江山农药化工股份有限公司 | Liquid chlorine and chlorine collinear production and use process and equipment thereof |
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| US4116016A (en) * | 1977-03-08 | 1978-09-26 | Fischer & Porter Co. | Corrosion-resistant liquified gas evaporator |
| CN201180903Y (en) * | 2008-03-28 | 2009-01-14 | 中国成达工程公司 | High-security automatic liquefied chlorine vaporization system |
| CN101446381A (en) * | 2007-11-27 | 2009-06-03 | 贵阳铝镁设计研究院 | Method for storing and gasifying liquefied chlorine gas and complete equipments thereof |
| CN101482221A (en) * | 2008-12-15 | 2009-07-15 | 中色科技股份有限公司 | Storage tank liquefied chlorine gasification method for production with few chlorine quantity |
| CN201836644U (en) * | 2010-10-14 | 2011-05-18 | 潍坊高信华工科技有限公司 | Automatic hot water heating device of liquid chlorine carburetor |
| CN202074229U (en) * | 2011-04-11 | 2011-12-14 | 攀枝花源丰钛业有限公司 | Liquid-chlorine vaporizing device for titanium-tetrachloride production |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6396398A (en) * | 1986-10-09 | 1988-04-27 | Kobe Steel Ltd | Vaporizing method for liquid |
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2012
- 2012-04-26 CN CN201210125256.6A patent/CN102635779B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4116016A (en) * | 1977-03-08 | 1978-09-26 | Fischer & Porter Co. | Corrosion-resistant liquified gas evaporator |
| CN101446381A (en) * | 2007-11-27 | 2009-06-03 | 贵阳铝镁设计研究院 | Method for storing and gasifying liquefied chlorine gas and complete equipments thereof |
| CN201180903Y (en) * | 2008-03-28 | 2009-01-14 | 中国成达工程公司 | High-security automatic liquefied chlorine vaporization system |
| CN101482221A (en) * | 2008-12-15 | 2009-07-15 | 中色科技股份有限公司 | Storage tank liquefied chlorine gasification method for production with few chlorine quantity |
| CN201836644U (en) * | 2010-10-14 | 2011-05-18 | 潍坊高信华工科技有限公司 | Automatic hot water heating device of liquid chlorine carburetor |
| CN202074229U (en) * | 2011-04-11 | 2011-12-14 | 攀枝花源丰钛业有限公司 | Liquid-chlorine vaporizing device for titanium-tetrachloride production |
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Address after: Liaocheng high tech Industrial Development Zone, Shandong 252000 Patentee after: Liaocheng Luxi methyl chloride Chemical Co., Ltd Address before: 252211 Shandong city of Liaocheng province Dong'e County Gu Guan Tun Zhen Luxi Chemical Industrial Park Patentee before: SHANDONG LIAOCHENG LUXI SIXTH CHEMICAL FERTILIZER Co.,Ltd. |
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