Liquefied chlorine cistern car decompression technique
A tank truck, liquid chlorine technology, applied in pressure vessels, gas/liquid distribution and storage, equipment discharged from pressure vessels, etc., can solve problems such as long unloading time, damage to machine seals, and the inability of two cranes to unload at the same time. , to increase the safety factor and reduce the waste of chlorine
Inactive Publication Date: 2011-04-20
山东金岭化工股份有限公司
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Problems solved by technology
The disadvantage is that the chlorine gas discharge is large, the storage tank and the middle tank cannot be released at the same time, and the two crane pipes cannot be unloaded at the same time, resulting in too long unloading time, about 5 hours per car, resulting in frequent start and stop of the submerged pump and frequent damage to the mechanical seal
Method used
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[0007] Comparing Fig. 1 and Fig. 2, the two liquid chlorine tank cars of the present invention are respectively provided with an air supply pipe and a liquid outlet pipe. All the gas supply pipes are connected in parallel to the gas phase pipe through valves, all the liquid outlet pipes are connected in parallel to the middle tank through the unloading crane pipe, and the middle tank is respectively connected to the storage tank and the detoxification process through the pressure relief valve. The valve is connected to the pressure relief inlet of the high-pressure machine, and the valve is connected between the gas filling pipe and the liquid outlet pipe of each liquid chlorine tank car, and the valve is installed on the gas filling pipe in front of the valve through the pipeline, the main control valve and the pressure relief valve. export connections. The gas phase pipe is connected to the high-pressure gas pipe through the pressurization valve, and is also connected to the...
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The invention relates to a chlorine liquid tanker pressure releasing technics in the field of producing and storing chemical raw material (chlorine). The technical proposal is that: a plurality of chlorine liquid tankers are respectively positioned with a gas filling pipe and a discharge pipe; valves of all gas filling pipes are connected to a gas phrase pipe in parallel and all discharge pipes are connected for passing through an unloading arm to an intermediate slot in parallel; the intermediate slot is respectively connected to a storage slot and through the pressure releasing valve; the storing slot is connected with a pressure releasing high pressure machine mouth; valves are respectively connected between the gas filling pipe and the discharge pipe of each chlorine liquid tanker; valve passing pipe-lines are arranged on the gas filling pipe in front of the valve and are connected with the exits of general-controlled valves and pressure releasing valves. The invention has the advantages of largely reducing the waste of chlorine, lowering the pressure of immersible pumps and intermediate slots and enhancing the safety factor.
Description
technical field [0001] The invention relates to a liquid chlorine tank car pressure relief process in the field of production and storage of chemical raw materials (chlorine gas). Background technique [0002] At present, the pressure relief process of the liquid chlorine tank car in the chlor-alkali plant (refer to accompanying drawing 1) includes: the liquid chlorine submerged pump, the liquid chlorine loading and unloading crane pipe, wherein the north crane pipe directly sends the liquid chlorine into the middle tank of the liquid pump, and then the liquid chlorine is pumped by the liquid chlorine The lower pump sends the liquid chlorine to the chemical industrial park, while the Nanhe pipe unloads the liquid chlorine into the liquid chlorine storage tank, and then flows from the liquid chlorine storage tank into the middle tank and then is pumped to the chemical industrial park by the liquid chlorine storage tank. The current operation process determines that the north ...
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IPC IPC(8): F17C7/02
Inventor 韩景村李可建
Owner 山东金岭化工股份有限公司