Closed space gas detection safety interlocking method

A confined space, gas detection technology, applied in building locks, measuring devices, program control, etc., can solve problems such as conditions that cannot reach absolute safety, misoperation, etc., to ensure life safety, ensure personnel safety, and improve practicability Effect

Pending Publication Date: 2020-03-06
青岛鼎信工业安全设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the original robot with energy debugging process in the prior art relies solely on human subjective judgment to switch, there is the possibility of misoperation, and the condition of absolute safety cannot be reached, and a kind of airtight robot is proposed. Space gas detection safety interlock method

Method used

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  • Closed space gas detection safety interlocking method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] refer to figure 1 , a gas detection safety interlocking method in a confined space, comprising:

[0031] S1: Operation input, the worker operates the key switch A before entering the sealed space for maintenance;

[0032] S2: Seal the space under the control of the processor for the first release of gas;

[0033] S3: Under the control of the processor, the gas concentration sensor detects the concentration of toxic gases in the sealed space;

[0034] S4: The processor analyzes whether the toxic gas concentration is qualified, and the mechanical key A1 can be turned and removed only after the gas concentration is qualified;

[0035] S5: Under the control of the processor, after passing the gas concentration test, the sealed space is forcibly released for the second time;

[0036] S6: The worker carries the mechanical key A1 to the mechanical door lock B in the confined space, inserts it and turns the mechanical key A1 before turning the mechanical key B1 to open the d...

Embodiment 2

[0047] refer to figure 1 , a gas detection safety interlocking method in a confined space, the main difference between this embodiment and embodiment 1 is that the working hours of the first air pump and the second air pump are changed;

[0048] As a further solution of the present invention: S3 includes a gas concentration sensor and a display, the gas concentration sensor and the display are electrically connected, the gas concentration sensor and the display are electrically connected to the processor in S2 through a data line, and the first air pump works After 15-20 minutes, the gas concentration sensor detects the gas concentration in the sealed space, and the detected value is displayed on the display.

[0049] As a further solution of the present invention: the processor in S4 analyzes the value fed back by the gas concentration sensor, and compares it with the information in the database. If it is not within the safe range, the first air pump will continue to work. If...

Embodiment 3

[0055] refer to figure 1 , a gas detection safety interlocking method in a confined space, the main difference between this embodiment and Embodiment 1 and Embodiment 2 is that the working hours of the first air pump and the second air pump are changed;

[0056] As a further solution of the present invention: S3 includes a gas concentration sensor and a display, the gas concentration sensor and the display are electrically connected, the gas concentration sensor and the display are electrically connected to the processor in S2 through a data line, and the first air pump works After 20-25 minutes, the gas concentration sensor detects the gas concentration in the sealed space, and the detected value is displayed on the display.

[0057] As a further solution of the present invention: the processor in S4 analyzes the value fed back by the gas concentration sensor, and compares it with the information in the database. If it is not within the safe range, the first air pump will con...

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Abstract

The invention discloses a closed space gas detection safety interlocking method. The method comprises the steps that (S1) the inputting is operated; and workers enter closed space to operate a key switch A before maintenance; (S2) under control by a processor, gas is released for the first time in the closed space; (S3) under control by the processor, a gas concentration sensor detects the concentration of poisonous gas in the closed space; (S4) the processor analyzes if the concentration of the poisonous gas is qualified; and after the concentration of the gas is qualified, a mechanical key A1 is rotationally taken down; and (S5) under control by the processor, after the concentration of the gas is qualified, the gas is forcedly released for the second time in the closed space. The methodadopts the mechanical safety interlocking control mode to guarantee no possibility of wrong operations, prevents the phenomenon of manual judgment faults, has the advantages of coerciveness and logicality compared with subjective judgment in traditional independent module detection and switching, and guarantees the people life safety.

Description

technical field [0001] The invention relates to the technical field of gas detection, in particular to a safety interlocking method for gas detection in a confined space. Background technique [0002] Industry, municipal, construction and other industries are inseparable from operations in limited spaces. In recent years, poisoning and suffocation accidents in operations in limited spaces have emerged one after another. Due to the lack of strict systems in the management of construction units, the lack of strict organization in implementation, and the lack of Necessary safety precautions; at the same time, due to the lack of necessary safety knowledge of some construction personnel, insufficient awareness of the dangers of entering confined spaces, lack of ventilation facilities or defective ventilation facilities, resulting in poor ventilation and toxic In the case of harmful gas accumulation, illegal operation, poisoning or suffocation; this situation seriously endangers t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D25/16F04D27/00E05B65/00G01N33/00G05B19/042
CPCE05B65/00F04D25/16F04D27/001F04D27/008G01N33/0036G05B19/042
Inventor 李林顾克庆段亚峰
Owner 青岛鼎信工业安全设备有限公司
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