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CN-121994867-A - Experimental device for be used for survey gas to detonate

CN121994867ACN 121994867 ACN121994867 ACN 121994867ACN-121994867-A

Abstract

The invention belongs to the technical field of coal mine gas amount experimental equipment, in particular to an experimental device for measuring gas detonation, which comprises a support and an experimental box, wherein the experimental box is connected with an electronic igniter, visual glass and a flow guide pipe, the flow guide pipe is provided with a flow guide hole, the support is connected with an electric push rod, the electric push rod is connected with a connecting plate, the connecting plate is connected with a gas component, an oxygen component and a coal dust component, the output ends of the gas component and the oxygen component are respectively arranged in the flow guide hole to inject gas and oxygen into the experimental box, the output end of the coal dust component is arranged in the experimental box to inject coal dust into the experimental box, the experimental box has a very strong cooling effect, the deep temperature of a combustion object can be effectively reduced, the probability of re-combustion is greatly reduced, and liquid nitrogen sprayed after pressurization has strong airflow to inhibit coal dust from lifting, so that secondary dust-lifting explosion risks possibly caused during fire extinguishment are avoided, and personal safety of workers entering an experimental site is effectively ensured after an explosion experiment is finished.

Inventors

  • YU XUELEI
  • NIU FUQIANG
  • HU SONG
  • HAO ZHENLI
  • Zhi Jingong
  • Chen cen
  • WANG XIAOXIAO

Assignees

  • 淮北矿业股份有限公司

Dates

Publication Date
20260508
Application Date
20251227

Claims (10)

  1. 1. An experimental device for determining gas detonation comprises a bracket (1) and an experimental box (20), wherein the experimental box (20) is connected with an electronic igniter (80), visual glass (27) and a flow guide pipe (21), and is characterized in that the flow guide pipe (21) is provided with a flow guide hole (25); The support (1) is connected with an electric push rod (30), a high-pressure liquid nitrogen fire extinguishing assembly, a camera (2), a combustible gas detector (3), a high-speed flame detector (4), a high-frequency pressure sensor (5), an audible and visual alarm (6), a dust concentration monitor (7) and an oxygen concentration sensor (8); the electric push rod (30) is connected with a connecting plate (31); The connecting plate (31) is connected with a gas component, an oxygen component and a coal powder component, the output ends of the gas component and the oxygen component are respectively arranged in the flow guide holes (25) and respectively inject gas and oxygen into the experimental box (20); The output end of the pulverized coal component is arranged in the experiment box (20) and pulverized coal is injected into the experiment box (20).
  2. 2. The experimental device for determining gas detonation of claim 1, wherein the high-pressure liquid nitrogen fire extinguishing assembly comprises a liquid nitrogen box (70) fixedly connected with a support (1), the liquid nitrogen box (70) is connected with a guide pipe (71), the guide pipe (71) is connected with a booster pump (72), a shunt pipe (73) and a check valve III (75), the shunt pipe (73) is connected with a plurality of jet pipes (74), and the jet directions of the jet pipes (74) face the experimental box (20).
  3. 3. The experimental device for determining gas detonation of the gas detonation device of claim 2, wherein the gas port (22) and the oxygen port (23) are formed in the guide pipe (21), the coal dust hole (24) is formed in the experimental box (20), the gas port (22) is matched with a gas assembly, the oxygen port (23) is matched with an oxygen assembly, the coal dust hole (24) is matched with the coal dust assembly, and the explosion-proof isolation plate (26) is wrapped on the outer surface of the experimental box (20).
  4. 4. An experimental device for determining gas detonation according to claim 3, wherein the gas assembly comprises a gas hose (40), the gas hose (40) is connected with a gas hard tube (41), the gas hard tube (41) is connected with a one-way valve (42), the output end of the gas hard tube (41) is positioned in the guide hole (25) when outputting gas, the gas hard tube (41) is clamped with the gas port (22), and the gas hard tube (41) is fixedly connected with the connecting plate (31).
  5. 5. The experimental device for determining gas detonation of claim 4, wherein the oxygen assembly comprises an oxygen hose (50), the oxygen hose (50) is connected with an oxygen hard tube (51), the oxygen hard tube (51) is connected with a one-way valve II (52), the oxygen hard tube (51) is provided with an oxygen outlet (53), the oxygen outlet (53) is positioned in the deflector hole (25) and faces the experimental box (20) when oxygen is output, the oxygen hard tube (51) is clamped with the oxygen port (23), and the oxygen hard tube (51) is fixedly connected with the connecting plate (31).
  6. 6. The experimental device for determining gas detonation of claim 5, wherein the coal dust assembly comprises a coal dust hose (60), the coal dust hose (60) is connected with a coal dust hard tube (61), the coal dust hard tube (61) is connected with a coal dust one-way valve (62), the output end of the coal dust hard tube (61) is positioned in the experimental box (20) and above the output end of the diversion hole (25) when outputting coal dust, and the coal dust hard tube (61) is fixedly connected with the connecting plate (31).
  7. 7. The experimental device for determining gas detonation of claim 6, wherein a gas blocking plate (401) is arranged in the flow guide hole (25), a first spring (402) connected with the flow guide pipe (21) is connected under the gas blocking plate (401), the gas blocking plate (401) is matched with a gas port (22), and a gas connecting rod (43) is arranged at the bottom of the gas hard pipe (41).
  8. 8. The experimental device for determining gas detonation of the gas detonation device of claim 7, wherein an oxygen blocking plate (501) is arranged in the diversion hole (25), a second spring (502) connected with the diversion pipe (21) is connected under the oxygen blocking plate (501), and the oxygen blocking plate (501) is matched with the oxygen port (23).
  9. 9. The experimental device for determining gas detonation of claim 8, wherein a coal dust blocking plate (601) is arranged in the experimental box (20), a spring III (602) is arranged in the center of the lower surface of the coal dust blocking plate (601), the coal dust blocking plate (601) is matched with a coal dust hole (24), and a coal dust connecting rod (63) is connected to the lower surface of a coal dust hard tube (61).
  10. 10. The experimental device for determining gas detonation of claim 9, wherein the upper surface of the pulverized coal plugging plate (601) is obliquely arranged, a clamping groove (603) is formed in the inner wall of the experimental box (20), and the clamping groove (603) is matched with the pulverized coal plugging plate (601).

Description

Experimental device for be used for survey gas to detonate Technical Field The invention belongs to the technical field of coal mine gas amount experimental equipment, and particularly relates to an experimental device for determining gas detonation. Background The coal mine gas is one of the main reasons for threatening the safe production of the mine, the existence of underground gas with certain concentration and high Wen Huoyuan and sufficient oxygen are the necessary conditions for causing gas explosion accidents, and once the gas explosion results are inconceivable in the coal mine operation, the gas quantity is strictly monitored and measured in the coal mine operation process, and besides, the experiment is performed in advance, and whether the explosion can be caused by simulating the gas quantity value through the experiment. However, the technology often has the following defects that after the explosion experiment is completed, an experimenter is generally required to enter the site to check and record, but the risk of secondary explosion is still remained after the explosion experiment is performed, so that the personal safety of the experimenter is better ensured, and the risk of secondary explosion possibly generated is avoided, therefore, an experimental device for measuring gas detonation is provided for the problems. Disclosure of Invention In order to make up for the deficiencies of the prior art, at least one technical problem presented in the background art is solved. The experimental device for determining gas detonation comprises a support and an experimental box, wherein the experimental box is connected with an electronic igniter, visual glass and a flow guide pipe, the flow guide pipe is provided with a flow guide hole, the support is connected with an electric push rod, a high-pressure liquid nitrogen fire extinguishing assembly, a camera, a combustible gas detector, a high-speed flame detector, a high-frequency pressure sensor, an audible and visual alarm, a dust concentration monitor and an oxygen concentration sensor, the electric push rod is connected with a connecting plate, the connecting plate is connected with a gas assembly, an oxygen assembly and a coal powder assembly, the output ends of the gas assembly and the oxygen assembly are respectively arranged in the flow guide hole, gas and oxygen are respectively injected into the experimental box, and the output end of the coal powder assembly is arranged in the experimental box and coal powder is injected into the experimental box. Preferably, the high-pressure liquid nitrogen fire extinguishing assembly comprises a liquid nitrogen box fixedly connected with a support, the liquid nitrogen box is connected with a guide pipe, the guide pipe is connected with a booster pump, a shunt pipe and a check valve III, the shunt pipe is connected with a plurality of jet pipes, and the jet pipe jet directions are all towards the experimental box. Preferably, the honeycomb duct has seted up gas mouth and oxygen mouth, the buggy hole has been seted up to the experimental box, gas mouth and gas subassembly looks adaptation, oxygen mouth and oxygen subassembly looks adaptation, the buggy hole with buggy subassembly looks adaptation, the parcel of experimental box surface has explosion-proof division board. Preferably, the gas subassembly includes the gas hose, the gas hose is connected with the gas hard tube, the gas hard tube is connected with check valve one, when exporting the gas the output of gas hard tube is located the water conservancy diversion hole inside, just gas hard tube and gas mouth looks joint, the gas hard tube is fixed continuous with the connecting plate. Preferably, the oxygen subassembly includes the oxygen hose, the oxygen hose is connected with the oxygen hard tube, the oxygen hard tube is connected with check valve two, the oxygen export has been seted up to the oxygen hard tube, when exporting oxygen the oxygen export is located the water conservancy diversion downthehole portion and towards the experimental box, the oxygen hard tube is with oxygen mouth looks joint, the oxygen hard tube is fixed continuous with the connecting plate. Preferably, the pulverized coal component comprises a pulverized coal hose, the pulverized coal hose is connected with a pulverized coal hard tube, the pulverized coal hard tube is connected with a pulverized coal one-way valve, the output end of the pulverized coal hard tube is positioned inside the experimental box and above the output end of the flow guide hole when outputting pulverized coal, and the pulverized coal hard tube is fixedly connected with the connecting plate. Preferably, a gas plugging plate is arranged in the diversion hole, a first spring connected with the diversion pipe is connected under the gas plugging plate, the gas plugging plate is matched with a gas port, and a gas connecting rod is arranged at the bottom of the gas hard pipe. Preferably, an oxygen blockin