Device and method for compounding multiple cylinders of mixed gas

A technology of mixed gas and gas cylinders, which is applied in the direction of mixing methods, mixers, chemical instruments and methods, etc., can solve the problems such as the molecular weight that is not suitable for preparing multiple bottles, and achieve the requirements of saving raw material gas, improving gas distribution accuracy, and ensuring purity Effect

Active Publication Date: 2015-09-09
PERIC SPECIAL GASES CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this device is not suitable for preparing multiple bottles of low-concentration mixed gas with small molecular weight and filled with large-volume steel cylinders.

Method used

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  • Device and method for compounding multiple cylinders of mixed gas

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Embodiment 1

[0040] Such as figure 1 As shown, a device for preparing multi-bottle mixed gas includes dilution gas raw material gas cylinder 1-2, component gas raw material gas cylinder 1-1, weighing device, pressure reducing valve 3, first ball valve 4-1, second Two ball valves 4-2, high vacuum baffle valve 5, vacuum pressure gauge 6, vacuum pump 7, venting control valve 8, venting pipeline 9, raw material gas main pipeline 10, precision pressure gauge 11, product gas busbar 12, needle Valve 13, product gas cylinder 14; product gas manifold 12 includes multiple gas pipelines, and the number of needle valves 13 and product gas cylinders 14 is equal to the number of gas pipelines;

[0041] Its connection relationship is as follows:

[0042] Dilute gas raw material gas cylinders 1-2 and product gas manifold 12 are respectively connected to the two ends of the raw material gas main pipeline 10; component gas raw material gas cylinders 1-1 are connected to the raw material gas main pipeline 1...

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Abstract

The invention discloses a device and a method for compounding multiple cylinders of mixed gas, and belongs to the field of mixed gas compounding. The device comprises a dilute feed gas cylinder, a component feed gas cylinder, a reducing valve, a first ball valve, a second ball valve, a high-vacuum baffle valve, a vacuum pressure gage, a vacuum pump, an emptying control valve, an emptying pipeline, a feed gas main pipeline, a precise pressure gage, a product gas cylinder manifold, needle valves and product gas cylinders, wherein the product gas cylinder manifold comprises a plurality of gas pipelines; the needle valves and the product gas cylinders are the same as the gas pipelines in number. The method comprises the following steps: 1, pipeline connection, 2, pipeline vacuumization, 3, pipeline gas replacement, 4, mixed gas preparation, and 5, pipeline emptying. Through adoption of the device and the method to prepare low-concentration gas, the weighing error is reduced, the gas compounding precision is improved, the gas compounding speed is high, the batch production is facilitated, and the gas compounding cost is saved; the device is simple and the method is easy to operate.

Description

technical field [0001] The invention relates to a device and method for preparing multi-bottles of mixed gas, in particular to simultaneous preparation and filling of multi-bottles of mixed gas, and belongs to the field of mixed gas distribution. Background technique [0002] Mixed gases have been widely used in scientific research, environmental protection, industrial production and product inspection, and the market demand is increasing. There are two types of mixed gas preparation methods: static gas distribution method and dynamic gas distribution method. Static gas distribution methods include: weighing method, volume method and pressure ratio method. The equipment of the static gas distribution method is simple and easy to operate. However, the traditional static gas distribution method can only fill one bottle of gas at a time, and cannot continuously distribute gas, making it difficult to carry out mass production; moreover, for low-concentration gas mixtures with ...

Claims

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Application Information

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IPC IPC(8): B01F3/02B01F13/06B01F15/04B01F23/10
Inventor 代伟娜刘晓林董云峰王峰刘保锋闫云黄国庆龙庆云苏玲燕
Owner PERIC SPECIAL GASES CO LTD
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