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Explosion-proof-diesel-engine alarming protection device

An explosion-proof diesel engine and protection device technology, applied in mechanical equipment, engine components, machines/engines, etc., can solve problems such as endangering personal safety, increased vibration of diesel engines, broken connecting rod bolts, etc., to achieve reliable work, low failure rate, line simple effect

Inactive Publication Date: 2016-02-10
无锡国煤重工机械有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, due to the sudden increase of the speed, the combustion noise, air noise and mechanical noise of the diesel engine all increase rapidly, and the imbalance of the inertial force of the diesel engine increases greatly, resulting in a sharp increase in the vibration of the diesel engine.
In addition, diesel engine speeding is also likely to cause damage to parts, such as broken connecting rod bolts, broken cylinder heads, fuselage, pistons and other parts, crankshaft balance weight and governor flyweight thrown out, flywheel rupture, etc., endangering personal safety

Method used

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Embodiment Construction

[0016] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and understandable, the specific implementation modes of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the above-mentioned and other purposes, features and advantages of the present invention will be clearer. Like reference numerals designate like parts throughout the drawings. The drawings have not been drawn to scale, emphasis instead being placed upon illustrating the gist of the invention.

[0017] see figure 1 , The explosion-proof diesel engine alarm protection device of the present invention includes an electrical box and a control unit placed inside the electrical box. The front end of the electrical box 1 is equipped with a man-machine interface 5, a box bracket 3 and a handle 2, and the rear end is provided with a connection port for sensor signals and control output. The man-machine inte...

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Abstract

The invention discloses an explosion-proof-diesel-engine alarming protection device. The explosion-proof-diesel-engine alarming protection device comprises an electrical cabinet and a control unit arranged inside the electrical cabinet. The control unit comprises a central processing unit; a pressure sensor, a temperature sensor, a rotating speed sensor and keys are connected with the central processing unit; when the value detected through the pressure sensor or the temperature sensor or the rotating speed sensor exceeds an alarming threshold value, the central processing unit drives an alarming unit to give out alarming reminding. A forced-starting protection module, a low-temperature starting protection module and a galloping protection module are arranged in the central processing unit. By means of the explosion-proof-diesel-engine alarming protection device, the safety of an explosion-proof diesel engine is greatly improved.

Description

technical field [0001] The invention belongs to the electrical field, in particular to an alarm protection device for an explosion-proof diesel engine. Background technique [0002] In the explosion-proof diesel engine control system, the starter motor may be overheated and damaged due to wrong operation methods such as the operator forced to start the motor for a long time, frequently started, frequently jogged the motor, and did not disconnect the starter motor in time after the engine was started. At present, the protection of diesel starter motors is mainly realized through relays and time-delay relays. However, the way of relay control and protection is too complicated, which increases the number of fault points to a certain extent, and cannot adapt to the increasingly intelligent construction machinery industry. Diesel engine runaway is a common failure. Diesel engine runaway means that the diesel engine loses control and the speed increases rapidly, exceeding 110% of ...

Claims

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Application Information

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IPC IPC(8): F02B77/08
Inventor 沈鉴伟
Owner 无锡国煤重工机械有限公司
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