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An explosion-proof diesel engine double-fan intake cut-off device

A technology of explosion-proof diesel engine and cutting device, which is applied in mechanical equipment, engine control, machine/engine, etc., can solve the problems of explosion-proof diesel engine that cannot be stopped in an emergency, the force is large, and the air leaks.

Active Publication Date: 2020-05-12
TAIYUAN INST OF CHINA COAL TECH & ENG GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problem that the existing explosion-proof diesel engine air intake cut-off device requires a large force when cut off, and the poor sealing effect after cut-off causes serious air leakage, which leads to the failure of the explosion-proof diesel engine to shut down urgently and forms a serious safety hazard. Double-fan air intake cut-off device with quick action, good sealing, small required cutting force and high reliability

Method used

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  • An explosion-proof diesel engine double-fan intake cut-off device
  • An explosion-proof diesel engine double-fan intake cut-off device
  • An explosion-proof diesel engine double-fan intake cut-off device

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Embodiment

[0041] Example: figure 1As shown, it is a schematic view of the overall structure of the present invention, including a housing 1, a rotating shaft 2, a damper 3, an air sealing cushion 13, an air sealing block 29, a gear 5, a pull rod 6, a spring 7, a connecting rod I 8, a pin I 10, and a cylinder 11, support 12, protective cover 4, bolt I32, snap ring II36 are formed. Two rotating shafts 2, air sealing block 29, and gland 15 arranged symmetrically are installed inside the housing 1; a damper 3, air sealing cushion 13, and positioning pin 14 are respectively installed on each rotating shaft 2; the rectangular key at the end of the rotating shaft 2 Connecting rod Ⅰ8 and connecting rod Ⅱ9 are installed at 17 places; gear 5 is installed on the housing 1 and fixed by circlip Ⅰ25; pull rod 6 connects gear 5, connecting rod Ⅰ8 and connecting rod Ⅱ9 through pin shaft Ⅱ35, and spring 7 is installed on On the pull rod 6, the spring 7 is in the shortest state when the damper 3 is open...

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Abstract

The invention belongs to the technical field of explosion-proof diesel engine air inlet shutoff devices, and particularly relates to an explosion-proof diesel engine dual-fan air inlet shutoff device.The problems that an existing explosion-proof diesel engine air inlet shutoff device needs high acting force to shut off, the sealing effect is poor after shutting off, and serious air leakage is caused are solved. The explosion-proof diesel engine dual-fan air inlet shutoff device comprises a shell body and two rotating shafts symmetrically arranged in the shell body. Each rotating shaft is provided with an air door, and the air doors are each in a semicircle disk shape. According to the explosion-proof diesel engine dual-fan air inlet shutoff device, air inlet shutoff is achieved by using the function of air flow, the shutoff speed is high, the sealing effect is good, the motion is reliable, the structure is compact, the needed air cylinder force is small, and the explosion-proof dieselengine dual-fan air inlet shutoff device is ideal and can also be applied in the field of other pipeline airflow shutoff.

Description

technical field [0001] The invention belongs to the technical field of an explosion-proof diesel engine air intake cut-off device, and in particular relates to an explosion-proof diesel engine double-fan air intake cut-off device. Background technique [0002] Due to the risk of gas explosion in coal mines, the diesel engine used is an explosion-proof diesel engine. When a gas over-limit alarm or over-temperature alarm occurs, the explosion-proof diesel engine needs to be shut down urgently to prevent gas explosion accidents. [0003] The shutdown of the explosion-proof diesel engine is realized by cutting off the diesel oil and the intake air at the same time. The intake cut-off is realized by setting a cut-off device on the air inlet of the explosion-proof diesel engine. Due to the hysteresis of diesel cut-off, the explosion-proof diesel engine can still operate at a low speed for a long time with a small amount of air supply. Incomplete combustion of diesel produces a la...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D9/10
Inventor 王丽威王治伟周开平赵美荣何景强任肖利韩霏潘成杰姚志功郭培燕赵海兴孔令志桑盛远仇博
Owner TAIYUAN INST OF CHINA COAL TECH & ENG GROUP
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