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Sampling evaporator comprising automatic replacement device and used for low-pressure liquefied gas inspection

A sampling evaporator and liquefied gas technology, which is applied in the fields of sampling evaporator for low-pressure liquefied gas and mixed gas inspection, and sample preparation equipment for low-pressure liquefied gas and mixed gas detection. Problems such as inconvenient cleaning and replacement of samples, increased fire hazards, etc., have achieved the effect of facilitating sampling inspection of liquefied gas, improving laboratory environment and safety, and reducing test preparation time

Active Publication Date: 2014-01-29
ANHUI OURUIDA ELECTRICAL APPLIANCE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing gasification process is generally a coil heating type, and the improved type changes the coil heating type to a capillary heating type (such as a flash evaporator, etc.). Determination (chromatography)" gasification process design, SH / T 0230-1992 "Liquefied Petroleum Gas Composition Determination (Chromatography)" given the gasification process has a long time-consuming, valve section and input sampling section without When the heat source is heated, the dew condensation in the valve section is serious, making it difficult to vaporize the C5 component, and the sample injection section is re-liquefied, causing fluctuations in the sample injection components, resulting in large reproducibility errors and distortion of test data
The highest repeatability error of the same sample exceeds 30%, which is a typical inaccurate item, and it is inconvenient to clean and replace the replacement sample, and the large amount of liquefied petroleum gas is released, which leads to increased fire hazards and pollutes the air environment in the laboratory. This method is basically out of use in inspection agencies
Since then, various scientific research institutions at home and abroad have developed various forms of gasification instruments including flash vaporizers, but they still cannot completely solve the problem of inaccurate detection

Method used

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  • Sampling evaporator comprising automatic replacement device and used for low-pressure liquefied gas inspection
  • Sampling evaporator comprising automatic replacement device and used for low-pressure liquefied gas inspection
  • Sampling evaporator comprising automatic replacement device and used for low-pressure liquefied gas inspection

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Embodiment Construction

[0026] Component reference designation 1. Power socket 220VAC 10A

[0027] 2. Self-recovery fuse 240VAC 2A 33. Replacement exhaust pipe

[0028] 3. Drive plate 34. Piston driving force pumping gas connection

[0029] 4. DC power supply DC19V 4.74A 35. Atmospheric balance device opening to the atmosphere

[0030]5. Lifting motor 36. Piston lower chamber

[0031] 6. Temperature control switch KSD301 105℃ 37. Electric heating tube

[0032] 7. Heat conduction constant temperature aluminum sleeve 38. Cylinder block assembly

[0033] 8. Heat conduction constant temperature aluminum sleeve temperature sensor 39. Telescopic air pressure hose

[0034] 9. Gas phase egg 40. Telescopic air pressure hose compression elbow

[0035] 10. Carrier gas input pipe for replacement 41. Piston assembly

[0036] 11. Piston upper cavity digital pressure sensor 42. Piston lower sealing ring

[0037] 12. Gas-phase medium heating pipe 43. Atmospheric balance pipe piston cavity air guide channel

...

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Abstract

The invention relates to a sampling evaporator comprising an automatic replacement device and used for low-pressure liquefied gas inspection. By the design of the automatic replacement device, residual gas-phase liquefied gas can be discharged out of the sampling evaporator through an analysis gap of a chromatographic instrument, and the detection preparation time is shortened; a sample can be continuously analyzed by the gas-phase chromatographic instrument, and the utilization rate of the gas-phase chromatographic instrument is greatly improved.

Description

technical field [0001] The invention relates to a sample preparation equipment for low-pressure liquefied gas and mixed gas detection in the field of chemical industry, in particular to a sampling evaporator for low-pressure liquefied gas and mixed gas detection with an automatic replacement device, which is used for low-pressure liquefied gas and mixed gas (such as propylene, propane, dimethyl ether, hydrogen bromide, ammonia, liquefied petroleum gas, etc.) sample preparation equipment that changes from liquid phase to unsaturated gas phase medium (ie superheated steam) in the inspection. Background technique [0002] Low-pressure liquefied gas and mixed gas have been widely used in various aspects of production and life. Since different environments have different requirements for the components of low-pressure liquefied gas and mixed gas, it is necessary to accurately and quickly measure the components of low-pressure liquefied gas and mixed gas. It is very necessary, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/12G01N1/28
Inventor 徐继承
Owner ANHUI OURUIDA ELECTRICAL APPLIANCE TECH
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