Temperature detection system and method for electric control device of mining special explosion-proof elevator
A mining explosion-proof and detection system technology, applied to thermometers, elevators, measuring devices, etc., can solve the problems of inconvenience, explosion loss, and the explosion-proof site is not allowed to open the box or open the box with electricity, etc., to simplify functions and reduce costs , The effect of flexible and convenient temperature detection
Pending Publication Date: 2020-03-06
CITIC HIC KAICHENG INTELLIGENT EQUIP CO LTD
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Problems solved by technology
In practical applications, sometimes it is necessary to modify the number of channels and alarm values of the temperature signal on site, but this is usually difficult to do, because it is not allowed to open the box or open the box with electricity on the explosion-proof site , otherwise it will cause a detonation
If you want to modify the parameters of the temperature inspection instrument, you have to take other explosion-proof measures, which is very inconvenient
Method used
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[0018] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0019] Such as figure 1 As shown, a mine explosion-proof hoist electric control device temperature detection system is composed of a PLC control box (A) and an operation console (B). The PLC control box (A) and the operation console (B) are connected by a power line The network cable is connected with the 485 communication line.
[0020] Such as figure 2 As shown, the PLC control box (A) is composed of a two-pole circuit breaker, a DC power supply (2), a programmable controller (3) and a multi-channel temperature control module (4); the two-pole circuit breaker includes: a circuit breaker The first pole of the circuit breaker (1.1), the second pole of the circuit breaker (1.2), the programmable controller (3) has an Ethernet interface X1, and the multi-channel temperature control module (4) has an RS485 communication interface X2.
[0021] The con...
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The invention discloses a temperature detection system and method for an electric control device of a mining special explosion-proof elevator. The system consists of a PLC control box and a console. According to the temperature detection system, an original multi-path temperature inspection instrument is replaced by an independently developed multi-path temperature control module with an RS485 communication port, and ports of RS485 communication on the touch screen and Ethernet communication among other devices such as the PLC control box, the console, the PLC and a touch screen are kept unchanged. The processing and display of the temperature signal, the setting of the channel number and the alarm value, the output of the temperature alarm and the like are all completed on the touch screen. The temperature detection system has the characteristics of being flexible and convenient in temperature setting, being economical and practical, safe, reliable and the like.
Description
technical field [0001] The invention belongs to the field of automatic control, and specifically relates to a temperature detection system and method for an electric control device of an explosion-proof hoist used in a mine. Background technique [0002] Mine explosion-proof hoist is an important transportation equipment working in coal mines containing explosive gases such as coal dust and gas, and is mainly responsible for transporting personnel and materials. The mine explosion-proof hoist works by the explosion-proof motor driving the drum to rotate through the reducer, and the drum drives the lifting container to reciprocate on the track through the steel wire rope wound on it. The motor, reducer, and drum are connected through a mechanical shaft and rotate on bearings. When the motor, reducer, and bearing are running at full load and high speed for a long time, the internal temperature will continue to rise due to the loss of electrical power and mechanical power. If...
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IPC IPC(8): B66B5/02G01K13/00G01K1/022
CPCB66B5/0031B66B5/02G01K13/00
Inventor 李愈清朱海军杨春明
Owner CITIC HIC KAICHENG INTELLIGENT EQUIP CO LTD