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Device for testing detonation velocity of explosive at low temperature

A thermal insulation device and explosive technology, which is applied in measuring devices, fuel oil testing, instruments, etc., can solve the problems that there is no simple and convenient method for explosive detonation velocity testing, and there is no simple and convenient method.

Inactive Publication Date: 2016-07-20
HUBEI SHUAILI CHEM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But at present, there is no simple and convenient method for the detonation velocity test of explosives at low temperature.
[0004] Given that there is currently no simple and convenient method for testing the detonation velocity of explosives at low temperatures

Method used

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  • Device for testing detonation velocity of explosive at low temperature

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the examples, but the protection scope of the present invention is not limited only to the examples.

[0016] combine figure 1 As shown, a device for testing the detonation velocity of explosives at low temperatures is characterized in that it includes an explosion cavity, a freezing and heat preservation device located in the explosion cavity, and a test system. The explosion cavity has a tube body 13, and the tube body is an antistatic tube body. The lower end of the pipe body 13 is provided with a lower seal 14 for closing the lower end of the pipe body 13, and the upper end of the pipe body is provided with an upper seal upper flange 2 and a lower seal lower flange 11 for closing the upper end of the pipe body, and an upper seal upper flange 2 It is connected with the lower flange 11 of the lower seal through the screw hole 3 of the sealing flange to ensure that the device can be airtight and...

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Abstract

The invention discloses a device for testing the detonation velocity of an explosive at low temperature.The device comprises a detonation cavity, a refrigeration and heat preservation device arranged in the detonation cavity, and a testing system.The detonation cavity is provided with a pipe.A lower seal for sealing the lower end of the pipe is arranged at the lower end of the pipe.An upper seal upper flange and a lower seal lower flange for sealing the upper end of the pipe are arranged at the upper end of the pipe.The refrigeration and heat preservation device comprises a salt water ice shell and heat preservation cotton which are sequentially arranged from outside to inside.A groove for containing an explosive sample is formed in the center of the heat preservation cotton.The testing system comprises an exploder and a detonation velocity instrument which are arranged at one side of the pipe.A detonator is arranged at the bottom of the explosive sample and connected with the exploder through a detonator leg wire.Two probes are arranged in the middle of the explosive sample and connected with the detonation velocity instrument through detonation velocity testing wires.After the device is adopted, the detonation velocity of the explosive at low temperature is tested under normal air temperature test conditions in the mode of simulating a low-temperature environment, and low-temperature detonation and development of the explosive can be further guided.

Description

technical field [0001] The invention relates to a device for testing the detonation velocity of explosives, in particular to a device for testing the detonation velocity of explosives when they explode at low temperature. Background technique [0002] With the widespread application of engineering blasting technology in Xinjiang, Inner Mongolia and other alpine regions, blasting in permafrost, blasting and ice-breaking will often occur when the temperature is lower than -30°C. However, during blasting construction, explosives have poor low-temperature resistance, and are easy to resist blasting in a low-temperature environment, and must take measures to return to temperature before they can be used normally, which brings great inconvenience to the construction. Therefore, the low temperature resistance of explosives must be paid attention to. [0003] Explosive detonation velocity refers to the propagation speed of detonation wave in explosives, which is one of the explosiv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/22
CPCG01N33/227
Inventor 申夏夏
Owner HUBEI SHUAILI CHEM
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