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Remote monitoring and non-manual control device and method for nitrogen making machine

A technology of remote monitoring and nitrogen generator, applied in the direction of electrical program control, comprehensive factory control, comprehensive factory control, etc., can solve the problems of waste of energy and human resources, etc.

Active Publication Date: 2014-04-30
上海加力气体有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to solve the technical problem of waste of energy and human resources caused by the independent control of each regulating loop in the nitrogen production technology in the prior art, and provides a remote monitoring and unmanned control of the nitrogen production machine that can realize real-time remote monitoring through the network device and method

Method used

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  • Remote monitoring and non-manual control device and method for nitrogen making machine
  • Remote monitoring and non-manual control device and method for nitrogen making machine
  • Remote monitoring and non-manual control device and method for nitrogen making machine

Examples

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Effect test

Embodiment 1

[0091] Such as Figure 1 to Figure 11 As shown, a device for remote monitoring and unmanned control of a nitrogen generator, including a network connection computer and a computer programming tool PLC system or DCS programming tool, one end of the filter AF102 on the air compression system A passes through the pipeline and the valve Connect the main air pipeline after the dust filter AF301 in the air pretreatment system B, lead the dry low-pressure air as the air source for the filter AF102 blowback, and the other end of the air compression system A is connected to the butterfly valve V606A on the water separation system I through the pipeline At one end, the outlet pipe of the dust filter AF301 on the air pretreatment system B is connected to the inlet end of the lower part of the rectification column in the cold box system F through the butterfly valve V612 on the analyzer system C, and the electric heater on the air pretreatment system B The intake pipe of EH-301 is connect...

Embodiment 2

[0093] A method for remote monitoring and unmanned control of a nitrogen generator, including a computer connected to a network and a PLC programming application tool. The method adopts a cryogenic method to separate air, and the compressed air enters rectification after passing through a molecular sieve adsorber to remove impurity gases. The tower, at low temperature, undergoes rectification at the outlet of the tower top product to obtain product nitrogen. The whole system consists of air compression system, pre-cooler, purifier, electric heater, expander refrigeration system, heat exchanger, rectification tower equipment, transmission Transportation and storage system, analyzer system, and instrument control system. The hardware of all electrical equipment in the whole system is equipped with two start-up methods: local and remote. Through the PLC-type DCS programming control system and safety protection system, the system is guaranteed. The safe and stable start-up, operati...

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Abstract

The invention relates to the technical field of nitrogen making devices, in particular to a remote monitoring and non-manual control device and method for a nitrogen making machine. The device comprises a network connection computer and a computer programming tool PLC system or a DCS programming tool, and is characterized in that one end of a filter on an air compression system A is connected with a main air pipeline on the rear portion of a dust filter in an air preprocessing system B through a pipeline and a valve, clean air is introduced to serve as a back flushing air source of the filter, the other end of the air compression system A is connected with one end of a butterfly valve on a water separation system I through a pipeline, each electric device is provided with a local start device and a remote start device, and continuous air supply of the devices is guaranteed by means of a PLC or DCS programming control system and a safety protection system. Compared with the prior art, the remote monitoring and non-manual control device and method have the advantages that full-automatic control is achieved, a nitrogen making device is monitored remotely and in real time through a network, safe and stable start, operation and stop of the device are guaranteed, a liquid nitrogen standby system is automatically started in abnormal situations, and continuous air supply is guaranteed.

Description

[technical field] [0001] The invention relates to the technical field of nitrogen making equipment, in particular to a device and method for remote monitoring and unmanned control of a nitrogen making machine. [Background technique] [0002] A nitrogen generator is a device that uses air as a raw material and uses physical methods to separate oxygen and nitrogen in it according to pressure swing adsorption technology to obtain nitrogen. According to different principles, nitrogen generators for industrial applications can be divided into cryogenic air separation, molecular sieve air separation (PSA) and membrane air separation. [0003] Cryogenic air separation nitrogen production is a traditional nitrogen production method, using air as raw material, after compression, purification, and then using heat exchange to liquefy the air into liquid air, using the different boiling points of liquid oxygen and liquid nitrogen, through liquid air Rectification to separate them to ob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418F25J3/04
CPCY02P90/02
Inventor 张宏林任小强薛祥龙
Owner 上海加力气体有限公司
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