Gas Station Load Automatic Control System

A technology of automatic control system and gas station, which is applied in the direction of control/regulation system, non-electric variable control, fluid pressure control, etc. It can solve the problem of large difference in the amount of air mixed with gasification agent, increasing the difficulty of gas furnace operation, and gas furnace Unstable furnace conditions and other problems, to achieve the effect of eliminating potential safety hazards, stabilizing adjustments, and eliminating ultra-high and ultra-low

Active Publication Date: 2017-03-01
SHENWU TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual operation, the saturated air temperature cannot fully reflect the ratio of the gasification agent, especially in northern regions where the temperature difference between day and night is large. The amount of air supplied varies greatly, resulting in unstable gas furnace conditions, increasing the difficulty of gas furnace operation, and affecting gas production rate

Method used

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  • Gas Station Load Automatic Control System
  • Gas Station Load Automatic Control System

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 As shown, the gas station load automatic control system provided by Embodiment 1 of the present invention has a high-pressure gas pressure control circuit, a low-pressure gas pressure control circuit and a limiter; the low-pressure gas pressure control circuit includes a low-pressure gas pressure transmitter and sequentially connected A low-pressure gas pressure regulator, a blower frequency converter and a blower, the low-pressure gas pressure regulator is connected with the industrial computer to obtain the low-pressure gas pressure setting value sent by the industrial computer, and the low-pressure gas pressure transmitter is set on the low-pressure gas On the conveying channel, and connected with the low-pressure gas pressure regulator, the measured actual low-pressure gas pressure value is fed back to the low-pressure gas pressure regulator; the low-pressure gas pressure transmitter also communicates with the high-pressure gas pressure through the l...

Embodiment 2

[0030] Such as figure 2 As shown, on the basis of Embodiment 1, the gas station load automatic control system of the present invention also includes a saturated air temperature control loop, which includes a ratio controller, a valve actuator, and a steam volume regulating valve connected in sequence. The ratio device is connected to the low-pressure gas pressure regulator, and the steam volume regulating valve is arranged on the steam conveying channel, and the steam volume regulating valve is specifically an electric regulating valve with a linear characteristic.

[0031] Further, the saturated air temperature control loop also includes a temperature regulator, a corrector and a temperature measuring thermocouple, the temperature regulator, corrector and ratio are connected in sequence, and the temperature regulator is connected to the industrial computer to obtain the temperature of the industrial computer. The set value of the saturated air temperature is sent, and the te...

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PUM

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Abstract

The invention relates to the technical field of automatic control, in particular to an automatic coal gas station load control system. The control system comprises a high-pressure coal gas pressure control loop, a low-pressure coal gas pressure control loop and an amplitude limiter. After a low-pressure coal gas pressure set value and actual pressure data collected by a low-pressure coal gas pressure transmitter are subjected to comparison operation through a low-pressure coal gas pressure regulator, a signal is outputted to a blower frequency converter, a blower is controlled to regulate air volume to further control pressure of a low-pressure coal gas main, meanwhile the low-pressure coal gas pressure transmitter transmits measured low-pressure coal gas pressure information to the high-pressure coal gas pressure control loop through the amplitude limiter, pressure regulation of the high-pressure coal gas pressure control loop is subjected to amplitude limitation, the two control loops restrict each other during pressure regulation, safety in the whole control process is guaranteed, potential risk that the low-pressure coal gas pressure is ultrahigh and ultralow due to frequent change of coal gas demand of users is eliminated, and stable regulation of coal gas production is realized.

Description

technical field [0001] The invention relates to the technical field of automatic control, in particular to an automatic load control system for a gas station. Background technique [0002] At present, producer gas uses air and steam as gasification agents, and is converted into gaseous fuel by gasification reaction of coal in a gasifier. Producer gas equipment has the characteristics of low investment, simple structure, easy operation, and strong adaptability to coal types. It has been widely used in iron and steel, refractory materials, ceramics, building ceramics, glass products, chemicals, machinery and other industries. [0003] Due to differences in working systems and production methods, the load of gas furnaces needs to be adjusted according to user needs to maintain a balance between production and gas consumption, avoid gas station safety accidents due to untimely operation, and stabilize the gas furnace condition , Reduce heat loss and improve energy efficiency. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D16/02C10J3/20C10J3/78C10J3/82
Inventor 吴士伟陈宗林尚久石吴道洪
Owner SHENWU TECH GRP CO LTD
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