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Double-circuit fuel gas supply system and application thereof

A supply system, fuel gas technology, applied in the pipeline system, gas/liquid distribution and storage, measuring devices, etc., can solve the problems of unstable fuel gas supply and low degree of automation, achieve timely automatic switching and improve the degree of automation , the effect of reducing production costs

Pending Publication Date: 2019-11-26
QINGDAO NUOCHENG CHEM SAFETY SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned technical problems of unstable fuel gas supply and low degree of automation, the present invention discloses a two-way fuel gas supply system and its application

Method used

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  • Double-circuit fuel gas supply system and application thereof

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Effect test

Embodiment 1

[0019] The invention discloses an application of a dual-path fuel gas supply system in on-line monitoring of fixed pollution source VOCs, and the on-line monitoring is based on gas chromatography.

[0020] The dual fuel gas supply system used, such as figure 1 As shown, it includes a detection device 1 and a two-way fuel gas supply system connected in parallel to the detection device 1. The detection device 1 can use the VOCs online monitoring equipment commonly used in the prior art, and one of the fuel gas supply systems is generated through the fuel gas. The device 2 supplies gas to the detection device 1, and the other fuel gas supply system supplies gas to the detection device 1 through two fuel gas cylinders. When one of the fuel gas supply systems in use is abnormal, the fuel gas supply system of this The gas is closed, and the other fuel gas supply is opened.

[0021] In particular, the gas pipeline at the outlet of the above-mentioned fuel gas generator 2 is connecte...

Embodiment 2

[0026] The invention discloses the application of a dual-path fuel gas supply system in a total hydrocarbon concentration analyzer. The total hydrocarbon concentration analysis is based on the FID principle.

[0027] The dual fuel gas supply system used, such as figure 1 As shown, it includes a detection device 1 and a two-way fuel gas supply system connected in parallel to the detection device 1. The detection device 1 adopts a total hydrocarbon analyzer commonly used in the prior art, and one of the fuel gas supply systems passes through the fuel gas generator 2 Gas is supplied to the detection device 1, and another fuel gas supply system supplies gas to the detection device 1 through two fuel gas cylinders.

[0028] In particular, the gas pipeline at the outlet of the above-mentioned fuel gas generator 2 is connected to the fuel gas inlet of the detection device 1, and the first filter 4, the first fuel gas flowmeter 5, the first pressure gauge 6 and the first pressure gaug...

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Abstract

The invention discloses a double-circuit fuel gas supply system and relates to the technical field of fuel gas supply in detection process. The double-circuit fuel gas supply system comprises a detecting device and two circuits of fuel gas supply systems which are connected into the detecting device in parallel. One fuel gas supply system provides gas for the detecting device through a fuel gas generator, and the other fuel gas supply system supplies gas for the detecting device by means of gas supply by two fuel gas cylinders. The invention further discloses the application of the double-circuit fuel gas supply system. The double-circuit fuel gas supply system has the beneficial effects that structural design is novel and reasonable, the parallel two circuits of fuel gas supply systems are adopted to provide fuel gas for the detecting device, so that fuel gas supply continuity and stability are guaranteed; PLC control achieves timely automatic switching of the fuel gas supplying manners, so that the automation degree is improved, maintenance workload is lightened, and production cost is lowered; it is guaranteed that a stationary pollution source VOCs online monitoring system and a total hydrocarbon concentration analysis meter continuously, stably and reliably operate, and normal operation of production is indirectly guaranteed.

Description

technical field [0001] The invention relates to the technical field of fuel gas supply in the detection process, in particular to a dual-path fuel gas supply system and its application. Background technique [0002] The fixed pollution source VOCs on-line monitoring system based on gas chromatography and the total hydrocarbon concentration analyzer based on the FID principle both require an external supply of stable fuel gas during normal operation. Usually, if the flow rate of fuel gas supply is low, the sensitivity of the detection device will be low, and even cause the detection device to go out, so that the detection process cannot be carried out; if the flow rate of fuel gas supply is high, the fire noise will be loud during the detection process. Stability will also deteriorate accordingly. [0003] At present, most of the existing fuel gas supply systems use fuel gas cylinders or fuel gas generators, and choose one to supply fuel gas to the detection device alone. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D1/02F17D3/01G01D21/02
CPCF17D1/02F17D3/01G01D21/02Y02E60/34
Inventor 王超张博书李博孙佳佳梁高峰
Owner QINGDAO NUOCHENG CHEM SAFETY SCI & TECH CO LTD