HA-9680 Industrial Explosion proof Gas Chromatography Instrument

1、 Application of Industrial Explosion proof Gas Chromatography Instrument

With the development of the social economy, large modern enterprises such as petrochemicals, steel, coal, etc. are constantly being built. In the production process involving the storage, transportation, production, processing, and handling of explosive substances, explosive hazardous substances will inevitably exist. At the same time, human factors such as selection, installation, maintenance, and operating standards also constitute crucial explosion-proof safety issues.

The purpose and significance of using industrial explosion-proof gas chromatography in industrial production, especially in petrochemical production, many production processes have characteristics such as flammability, explosiveness, high temperature, high pressure, and toxicity. Many process media have strong corrosiveness, and some media are prone to crystallization and pipeline blockage. Corresponding technical measures must be taken to solve the protection problem of measuring instruments when used in these special places.

Due to the special nature of the testing environment, it is required that the testing instruments have explosion-proof functions and online monitoring capabilities, so that real-time monitoring of gas composition and content can be carried out in hazardous areas, providing data reference for controlling gas content in production. Not only does it have the ability to perform online gas detection, but it also has explosion-proof capability in explosive hazardous environments.

Although ordinary positive pressure explosion-proof cabinets can meet the on-site requirements for explosion-proof, compared with industrial explosion-proof gas chromatographs, they have lower integration, complex on-site operation and debugging, high gas consumption, and high energy consumption, so there are limitations in their use.

A typical online chromatograph only has an explosion-proof cabinet installed outside the ordinary chromatograph, but it has not been considered from the perspective of the chromatograph's own application. The chromatograph itself uses or tests substances such as hydrogen and toxic gases such as phosphine and arsine, but the explosion-proof cabinet does not consider the prevention of these components. Once these substances leak, the explosion-proof cabinet cannot output signals to the outside world in a timely manner and take safety measures (automatic circuit and gas circuit disconnection).

II HA-9680Explosion proof index of industrial explosion-proof gas chromatograph

HA-9680The industrial explosion-proof gas chromatograph passed the instrument explosion-proof safety supervision and inspection station certification in February 2022, and obtained the NEPSI explosion-proof qualification certificate for the product, with an explosion-proof level of EX d ib mb px Ⅱ CT4 Gb.

1Applicable environment

AHazardous areas for explosive gas mixtures: Zone 1, Zone 2

BExplosive gas mixture: Class IIA, IIB, IIC, HA-9680 has an explosion-proof rating of IIC and is suitable for all gas components including hydrogen and acetylene.

CTemperature group: T1-T4, which is the surface temperature of electrical equipment related to the ignition temperature of gas (assuming an ambient temperature of 40 ℃), and the ignition energy is independent of the ignition temperature.

2Explosion proof mode

APreprocessing system, explosion-proof type: All injection and carrier gas pressure reduction systems are located in the left chamber of the explosion-proof type

BKeyboard, intrinsic safety type: enables on-site debugging and testing of the chromatograph

CElectromagnetic valve, sealed type: achieving flow path switching for pre-treatment

DCircuit system, positive pressure type: effective prevention and control of explosive gases in chromatography instruments

u Applicable but not applicable to the following national standards:

1Product standards

GB/T 3634.2-2011Pure Hydrogen, High Purity Hydrogen, and Ultra Pure Hydrogen GB/T 14599-2008Pure Oxygen, High Purity Oxygen, and Ultra Pure Oxygen

GB/T 8979-2008Pure Nitrogen, High Purity Nitrogen, and Ultra Pure Nitrogen GB/T 4842-2017Argon

GB/T 4844-2011Pure Helium, High Purity Helium, and Ultra Pure Helium GB/T 17873-2014Pure Neon and High Purity Neon

GB/T 12022-2014Industrial sulfur hexafluoride GB/T 28125.1-2011Determination of Hazardous Substances in Air Separation Processes

GB/T 37244-2018Proton Exchange Membrane Fuel Cell Fuel Hydrogen for Vehicles GB/T 5829-2006Krypton "

GB 1886.228-2016National Food Safety Standards for Food Additives Carbon dioxide GB/T 5828-2006Xenon gas

2Online technical specifications:

EEMUA 38Design and Installation of Online Analyzer System IEC61000Electromagnetic Compatibility

GB 3836-2000Electrical equipment for explosive gas environments IEC79Electrical equipment for use in explosive gas environments

GB 50058-92Design Code for Electrical Installations in Explosive and Fire Hazardous Environments IEC61779Combustible Gas Detector

IEC 60079Electrical equipment for explosive gas environments IEC/CENELECRegulations for Cable Enclosures and Installation in Hazardous Areas

SH/T3082-2003Design Specification for Instrument Power Supply in Petrochemical Industry SH/T3081-2003Design Specification for Instrument Grounding in Petrochemical Industry

u System configuration:

(1) HA-9680 Industrial Explosion proof Gas Chromatography Instrument (5) Ventilation automatic control system

(2) Automated pre-processing system (6) Explosion proof alarm system

(3) Gas saving mode (7) Small Square System

(4) Automatic Sample Injection Calibration System (8) Gas cut-off protection system

u Instrument parameters:

Instrument parameters:

Dimensions: 1300mm (W) × 1800mm (H) × 1000mm (D)

1Product usage environment temperature range -20 ℃ -+40 ℃

2Electrical safety parameters: 220VAC, power of 5kw

3The pressure range of the user's gas supply source is 0.4Mpa-0.8Mpa, with a positive pressure ventilation duration of 30 minutes and a positive pressure value of 60Pa-200Pa

4The detector is configured with any one or more of TCD, FID, PDD, FPD, etc

5、 4-20mA and Modbus data transmission