CN212027851U

CN212027851U - Novel explosion-proof well lid of pressure release

Info

Publication number: CN212027851U
Application number: CN201922011367.4U
Authority: CN
Inventors: 徐百超; 孙茜; 郑秋爽
Original assignee: Shandong University of Science and Technology
Current assignee: Shandong University of Science and Technology
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-11-27
Anticipated expiration: 2029-11-20

Abstract

The utility model discloses a novel explosion-proof well lid of pressure release, including pressure relief device, counter weight fixing device and monitoring devices, pressure relief device includes pressure release board, the explosion-proof well lid of pressure release, and the pressure release board passes through wire rope and links to each other with the explosion-proof well lid of pressure release, and the explosion-proof well lid of pressure release is equipped with the liquid seal groove with the wellbore wall junction, counter weight fixing device includes counter weight, fixed spring, fixed rail, and fixed spring's one end links to each other with the explosion-proof well lid of pressure release, and one end passes through wire rope and links to each other with the counter weight, monitoring devices includes sensor, signal reception transmitter, and the sensor is laid and is linked to each. The utility model discloses the reliability is high, and pressure release capacity is strong, can effectual protection ventilation blower, can inform the staff rapidly and guarantee the normal ventilation in the pit after the explosion impact in the pit.

Description

Novel explosion-proof well lid of pressure release

Technical Field

The utility model belongs to colliery ventilation safety field, concretely relates to novel explosion-proof well lid of pressure release.

Background

In the coal mining process, complete ventilation system is the prerequisite of coal mine safety mining, and the normal operation of ventilation blower brings fresh air for the pit, and direct relation staff's life safety, explosion-proof well lid are crucial as the device of protection ventilation blower, and the effect of explosion-proof well lid is when taking place the coal dust explosion or gas explosion in the pit, and explosion-proof well lid in time releases pressure, avoids the shock wave to destroy the ventilation blower, causes life threat to the operation personnel in the pit.

Disclosure of Invention

The utility model aims at providing a simple structure, the pressure release ability is strong, and the reliability is high, can prevent effectively that the well lid departure and in time reset and resume the explosion-proof well lid of ventilation rapidly.

The utility model relates to a novel explosion-proof well lid of pressure release, including pressure release device, counter weight fixing device and monitoring devices

In the novel pressure relief explosion-proof well lid, the pressure relief device consists of the pressure relief plate and the pressure relief explosion-proof well lid; the counterweight fixing device consists of a counterweight heavy hammer, a fixing spring and a fixing steel rail; the monitoring device consists of a sensor and a signal receiving and transmitting device; the pressure relief plate passes through wire rope with the explosion-proof well lid of pressure release and links to each other, the explosion-proof well lid of pressure release realizes the linkage with the pressure relief plate, be equipped with the fluid seal groove between the explosion-proof well lid of pressure release and the wall of a well, prevent the air leakage, the explosion-proof well lid of pressure release is connected with fixed spring, spring coupling wire rope, wire rope one end links to each other with the counter weight, wire rope end links to each other with ground, the sensor has been buried underground in the well section of thick bamboo wall, the real-time supervision ventilation condition, meet emergency.

The pressure relief plate breaks the pressure relief sheet on the pressure relief plate by the shock wave to achieve the purpose of pressure relief.

Foretell explosion-proof well lid of pressure release, blast impact explosion-proof well lid, well lid are the crooked form pressure release of fifty percent discount.

Foretell fixed spring, the spring tightly fixes the well lid on the wall of a well, the effectual well lid departure that prevents.

According to the fixed steel rail, the pressure relief plate is stably placed on the fixed steel rail to prevent the fixed steel rail from overturning, so that the pressure relief plate can be utilized most efficiently when shock waves come.

The utility model relates to a novel explosion-proof well lid of pressure release, its advantage is: the pressure release ability is strong, and the last pressure release piece of pressure release board is at first destroyed under the effect that the explosion is strikeed, reduces the kinetic energy of shock wave, and the explosion-proof well lid of pressure release can both ends release pressure simultaneously. The well lid is high in reliability, the well lid is not prone to flying out, the resetting capability is high, underground ventilation can be rapidly recovered, and personnel safety is guaranteed. Simple structure, it is convenient to dismantle, and the practicality is strong.

Drawings

The invention will be further clearly and completely explained with reference to the accompanying drawings:

FIG. 1: novel pressure release explosion-proof well lid structure schematic diagram

FIG. 2: seal groove enlarged schematic view

The device comprises a ground 1, a ground 2, a fixing buckle 3, a counterweight heavy hammer 4, a baffle plate 5, a signal receiving emitter 6, a sealing groove 7, a fixer 8, a shaft 9, a pressure relief explosion-proof well cover 10, a steel wire rope 11, a pressure relief plate 12, a fixing spring 13, a sensor 14, a pressure relief plate 15, a fixing steel rail 16, a well wall 17 and a monitoring device.

Detailed Description

The utility model discloses a novel explosion-proof well lid of pressure release, in order to make the utility model discloses an advantage, technical scheme are clearer, clear, it is right to combine specific embodiment below the utility model discloses do further clear, complete explanation.

Under the normal ventilation state, the ventilation blower produces the negative pressure, and counter weight 3 does not add the counter weight and makes the explosion-proof well lid of pressure release 9 firmly combine with well wall 16 under the effect of negative pressure, and the explosion-proof well lid of pressure release 9 links together with well wall 16 through seal groove 6 and reaches sealed effect, prevents that the air leakage from making the normal ventilation in the pit, and circular pressure release board 11 passes through fixer 7 and is connected with wire rope 10, and the wire rope upper end is connected with the explosion-proof well lid of pressure release 9.

When an explosion accident happens underground, the sensor 13 sends abnormal data to the console through the signal receiving and transmitting device 5, a quick response is obtained in the first time, loss is reduced, the pressure relief plate 11 is flushed out of the fixed steel rail 15 by shock waves, the pressure relief plate 11 impacts the pressure relief explosion-proof well lid 9 along the direction of the steel wire rope 10 to realize further pressure relief, the two ends of the pressure relief explosion-proof well lid 9 are folded inwards and lifted to the outside to relieve pressure under the action of impact force due to the shaft 8, the pressure relief explosion-proof well lid 9 is not easy to fly out under the combined action of the fixed spring 12 and the baffle 4, the pressure relief explosion-proof well lid 9 can be reset accurately due to the limiting action of the fixed spring 12 and the baffle 4 after pressure relief is finished, normal ventilation is recovered, and the fixing buckle 2 can effectively limit the pressure relief explosion-proof well lid 9 from flying out too far when a special condition occurs, in order to manually restore the ventilation.

When the ventilation blower trouble, through adding the counter weight thing on the counter weight 3, weight is greater than the explosion-proof well lid of pressure release 9, lifts up the explosion-proof well lid of pressure release 9 through fixed spring 12, and the explosion-proof well lid of pressure release 9 passes through wire rope 10 and promotes pressure release board 11, and pressure release board 11 reaches certain height and will increases the draught area, realizes natural wind pressure ventilation.

Claims

1. A novel pressure relief explosion-proof well lid comprises a pressure relief device, a counterweight fixing device and a monitoring device; the method is characterized in that: the pressure relief device consists of a pressure relief plate and a pressure relief explosion-proof well lid, and the pressure relief plate is connected with the pressure relief explosion-proof well lid through a steel wire rope; the counterweight fixing device consists of a counterweight heavy hammer, a fixing spring and a fixing steel rail, wherein one end of the fixing spring is connected with the pressure-relief explosion-proof well cover, the other end of the fixing spring is connected with the counterweight heavy hammer through a steel wire rope, and the tail end of the steel wire rope is connected with the ground; the monitoring device is composed of a sensor and a signal receiving and transmitting device, wherein the sensor is arranged in the shaft and is connected with the signal receiving and transmitting device through a signal cable.

2. The novel pressure relief explosion-proof well lid of claim 1, characterized in that: the pressure relief plate is provided with a pressure relief sheet, and the explosion shock wave damages the pressure relief sheet to achieve the purpose of pressure relief.

3. The novel pressure relief explosion-proof well lid of claim 1, characterized in that: the traction force through the fixed spring prevents that the well lid departure resumes the ventilation rapidly.

4. The novel pressure relief explosion-proof well lid of claim 1, characterized in that: a shaft is arranged in the pressure relief explosion-proof well cover, and two ends of the well cover can rotate relatively.

5. The novel pressure relief explosion-proof well lid of claim 1, characterized in that: the monitoring device has two units, one unit is working and the other one is standby.