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Testing method for sensor with dustproof, dedusting and explosion protection frunction, product and application of the same

A detection method and sensor technology, applied in the direction of instruments, analysis materials, etc., to achieve the effect of convenient and rapid replacement, guarantee of life safety, and prolong service life

Inactive Publication Date: 2007-05-16
曾锃
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to propose a dynamic sensor detection method and product structure based on the guiding ideology of combining prevention and elimination for the defects existing in sensor monitoring systems in high dust environments such as industrial and mining sites

Method used

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  • Testing method for sensor with dustproof, dedusting and explosion protection frunction, product and application of the same
  • Testing method for sensor with dustproof, dedusting and explosion protection frunction, product and application of the same

Examples

Experimental program
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Effect test

Embodiment 1

[0017] The dynamic and time-discrete monitoring form shown in Figure 1 is adopted: 0 o'clock on the time axis is the moment when the sensor is installed and starts to work. The time length of the detection cycle of the sensor is T, and each detection cycle can be divided into a detection state and a non-detection state, and their time lengths are tw and ts respectively. The sensors work in this cyclical fashion. The sensor itself and the sensor probe are two relatively independent parts, and the connection between the base inside the sensor and the sensor probe is a plug-in connection. The base to connect the sensor is a male plug and the sensor probe is a female jack. The inside of the female socket of the new sensor probe is filled with carbon dioxide or other inert gas, and the socket is sealed by a breakable film to prevent the inert gas from leaking. The inert gas can ensure that the new sensor probe is inserted into the sensor base, isolating sparks or electric sparks ...

Embodiment 2

[0019] In high-dust and high-risk industrial and mining sites, such as tunnels in coal mines, if ordinary gas monitoring sensors are used, the detection holes of the sensors will be quickly blocked by falling dust, thus losing the monitoring function. Therefore, where a gas monitoring system needs to be installed, multiple new dust-proof, dust-removing and explosion-proof gas monitoring sensors will be installed. These new gas monitoring sensors can establish a data communication network through a wired or wireless transmission system, and transmit the collected information to the monitoring center server through the data communication network. The new sensor will sample and detect the environment in accordance with a predetermined cycle. After the sampling and detection is completed, the sensor probe will retract into the sensor and wait for the start of the next detection cycle. The specific process is as follows: when the sensor enters the detection cycle, the sliding cover...

Embodiment 3

[0021] In some high-dust environments, this dust-proof and dust-removing sensor is installed independently. The sensor will work according to the pre-established detection cycle. When the detection cycle of the sensor starts, the sliding cover is automatically opened to expose the small hole through which the sensor probe protrudes out of the sensor to detect the medium. After the detection is completed, the sensor probe retracts into the sensor, the slide cover is closed, and the sensor waits for the next detection cycle. During a detection cycle, the extension and retraction of the sensor probe will pass through the brush installed around the small hole. The dust accumulated on the surface of the sensor probe in the process of sampling and detection will be brushed away by the relative mechanical movement between the sensor probe and the brush, which can ensure the cleanliness of the sensor surface, thus ensuring the long-term normal operation of the sensor. When the senso...

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Abstract

This invention relates to sensor test method and product to prevent dust, which ensures sensor test reaction time and changes the current sensor system from static and continuous monitor type into dynamic and discrete monitor type with certain time interval through interval type for sample test of monitor media; the sensor and sensor probe, is designed relatively.

Description

technical field [0001] The invention relates to a detection method and product of a monitoring sensor in a high-dust and high-risk environment, in particular to a detection method and product of a monitoring sensor based on dust prevention, dust removal and explosion protection for industrial and mining sites, which belongs to monitoring Fields of application of sensor technology. The invention also relates to the use of an aforementioned sensor product. Background technique [0002] At present, the monitoring systems (such as gas detection) of domestic industrial and mining sites in China are all static monitoring sensors, that is, in order to ensure the real-time performance of the monitoring system, the sensor probes are always in contact with the monitored medium, such as air. The sensor head itself is always exposed to the medium. In general homes, hospitals, and offices, this static sensor system can play a very good role. However, if we continue to use this static ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N35/00G01N37/00
Inventor 曾锃
Owner 曾锃
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