Small high-precision gas proportioner

A proportioner, high-precision technology, applied in mixer accessories, chemical instruments and methods, dissolution and other directions, can solve the problems of concentration value error, low precision, etc., to improve concentration accuracy, solve pipeline layout and leakage and inconvenient maintenance. Effect

Inactive Publication Date: 2018-05-18
GENTECSHANGHAI
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Problems solved by technology

[0009] In view of the problems of large concentration error and low precision in existing small gas proportioners, a new small gas proportioner solution is needed

Method used

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  • Small high-precision gas proportioner
  • Small high-precision gas proportioner
  • Small high-precision gas proportioner

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Embodiment Construction

[0032] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0033] This example aims at the problem that the gas mixing accuracy of the existing flowmeter type is affected by the measurement accuracy of the flowmeter, and the gas flow is difficult to achieve high-precision measurement. The flow test is abandoned, and the gas mixing ratio is directly controlled by the gas proportioning valve. At the same time, it is equipped with a pressure Complementary voltage regulator stabilizes the gas pressure entering the gas proportional control valve, and the two gas pressures compensate each other to ensure that the two gas pressures entering the proportional valve are consistent and are not affected by changes in the intake pressure, making the gas mixed with higher precision , the concentration ratio is more st...

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Abstract

The invention discloses a small high-precision gas proportioner. The gas mixing ratio is directly controlled by a gas proportional valve, the pressure of multiple paths of gas for proportioning can becomplementary by means of a pressure complementary type pressure stabilizer, and the gas enters the gas proportional valve with the pressure kept consistent. By means of the scheme, a flow testing mode is abandoned, the gas mixing ratio is directly controlled, the concentration precision of mixed gas is improved, and the defects of the prior art are effectively overcome; in addition, an integration module structure is adopted in the scheme, all the components form a system through integration modules, no pipelines are designed, and the problem that the layout and leakage maintenance of pipelines are not convenient is solved effectively.

Description

technical field [0001] The invention relates to a gas mixing technology, in particular to a gas proportioner technology. Background technique [0002] Many fields such as industry often require the use of mixed gases, such as industrial mixed gas shielded welding, or mixed gas anticorrosion in the food packaging industry. The generation of mixed gas requires precise proportioning of two or more simple gases to produce a mixed gas with an accurate concentration. Large and medium-sized gas proportioners connect various valve groups through pipelines according to process requirements, and finally transport them to storage tanks for use by gas equipment. [0003] However, the existing small-scale gas proportioners are all directly quantitatively controlled by double flowmeters, and then the actual mixed gas concentration is calculated. [0004] see figure 1 , the small gas proportioner mainly includes two sets of parallel gas circuits, respectively composed of air inlets (1a,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F15/04
CPCB01F35/833
Inventor 缪立峰胡跃钢
Owner GENTECSHANGHAI
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