CN105784961A - Device for testing detonation velocity of explosive at low temperature - Google Patents
Device for testing detonation velocity of explosive at low temperature Download PDFInfo
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- CN105784961A CN105784961A CN201610127615.XA CN201610127615A CN105784961A CN 105784961 A CN105784961 A CN 105784961A CN 201610127615 A CN201610127615 A CN 201610127615A CN 105784961 A CN105784961 A CN 105784961A
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- Prior art keywords
- explosive
- detonation
- low temperature
- test
- velocity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/22—Fuels, explosives
- G01N33/227—Explosives, e.g. combustive properties thereof
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
The present invention relates to a kind of device testing explosion velocity of explosive, be specifically related to a kind of device testing explosive explosion time explosion velocity at low temperatures.
Background technology
Along with the extensive use in the extremely frigid zones engineering explosion technology such as Xinjiang, Inner Mongol, frozen soil layer explosion can be frequently encountered by, explosion is opened ice etc. when temperature is lower than-30 DEG C explosion situation.But when being by blast working, explosive resistance to low temperature is poor, easily miss-fires under low temperature environment, it is necessary to take the measure of rising again normally to use, bring great inconvenience to construction.Therefore the resistance to low temperature of explosive, it is necessary to paid attention to.
Explosion velocity of explosive refers to detonation wave spread speed in explosive, is one of explosion properties.Under normal circumstances, explosive explosion velocity under certain degree of packing has multiple accurate measuring method.But at present for explosive explosion velocity test at low temperatures, but without method simply and easily.
In view of there is no one method simply and easily for the test of explosive explosion velocity at low temperatures at present.Therefore the device of explosion velocity under test explosive low temperature is developed the development of blast working under low temperature and explosive is significant.
Summary of the invention
The purpose of patent of the present invention is in that by simulating low temperature environment, it is provided that a kind of test the device of explosion velocity of explosive under low temperature, to instruct the development of explosion and explosive under low temperature further.
In order to reach the purpose of the present invention, technical scheme is as follows:
A kind of test the device of explosion velocity of explosive under low temperature, it is characterized in that, including blast cavity, the freezing attemperator being located in explosion chamber body and test system, blast cavity has body, the lower end of described body is provided with the lower sealing of closed tube lower end, and the upper end of body is provided with upper sealing upper flange and the lower sealing lower flange of closed tube upper end；Freezing attemperator includes the saline solution nilas and the heat-preservation cotton that set gradually from outside to inside；There is the groove of explosive sample at heat-preservation cotton center；Test system includes initiator and the detonation velocity meter of being located at described body side, and the bottom of explosive sample is provided with detonator, and detonator is connected with initiator by detonator payment to a porter；Being provided with two probes in the middle part of explosive sample, probe is connected with detonation velocity meter by explosion velocity test lead.
Preferably, being provided with wire casing between upper sealing upper flange and lower sealing lower flange, detonator payment to a porter is through described wire casing, and explosion velocity test lead is also through described wire casing.
Preferably, also including the thermometer for measuring explosive specimen temperature, the lower end of described thermometer is placed on inside explosive sample through upper sealing upper flange.
This device is simulated the process of experiment and principle is: when carrying out Exploding test at a certain temperature, first explosive and this device is together put freezing at such a temperature and reaches to want seeking time.During test, first lower sealing is connected with antistatic body；Then saline solution nilas and heat-preservation cotton and explosive sample are assembled, with fully wrapped around live explosive sample be as the criterion, and connect detonator payment to a porter and explosion velocity test lead；Again the explosive sample after wrapping is put into cavity, two flanges of upper sealing by bolt compact siro spinning technology；Now thermometer is inserted observation explosive temperature in sample, thus explosive sample is maintained under cryogenic, and the true temperature that can record during test in explosive.Then at test site initiator apparatus to cause bursting, drawing the explosion velocity under explosive low temperature by the detonation velocity meter being connected with explosion velocity test lead, this numerical value should be just the simulation explosion velocity carrying out explosion time at the same temperature.
The invention have the benefit that
After adopting this device, under normal temperature experimental condition, realize the test of explosion velocity of explosive under low temperature by simulating the mode of low temperature environment, and one of explosion velocity explosion property index that to be explosive important, this device is conducive to instructing further the development of explosion and explosive under low temperature.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram that the present invention tests the device of explosion velocity of explosive under low temperature.
In figure, 1-thermometer；2-seals upper flange；3-blind flange screw；4-detonator payment to a porter；5-explosion velocity test lead；6-wire casing；7-explosive sample；8-detonator；9-saline solution nilas；10-initiator；11-lower sealing lower flange；12-heat-preservation cotton；13-antistatic body；14-lower sealing；15-detonation velocity meter.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described, but protection scope of the present invention is not limited solely to embodiment.
Shown in Fig. 1, a kind of test the device of explosion velocity of explosive under low temperature, it is characterised in that including blast cavity, the freezing attemperator being located in explosion chamber body and test system, blast cavity has body 13, and body is antistatic body.The lower end of body 13 is provided with the lower sealing 14 of closed tube 13 lower end, the upper end of body is provided with upper sealing upper flange 2 and the lower sealing lower flange 11 of closed tube upper end, upper sealing upper flange 2 and lower sealing lower flange 11 are connected by blind flange screw 3, it is ensured that device can airtight completely cut off.Freezing attemperator includes the saline solution nilas 9 and the heat-preservation cotton 12 that set gradually from outside to inside, temperature when taking out after maintaining explosive sample freezing by saline solution nilas 9 and heat-preservation cotton 12.Have the groove of explosive sample 7 at heat-preservation cotton 12 center, the surrounding insulation of explosive sample 7 cotton 12 is surrounded.Test system includes initiator 10 and the detonation velocity meter 15 of being located at described body 13 side, and the bottom of explosive sample 7 is provided with detonator 8, and detonator 8 is connected with initiator 10 by detonator payment to a porter 4；Being provided with two probes in the middle part of explosive sample 7, probe is connected with detonation velocity meter 15 by explosion velocity test lead 5.
Being provided with wire casing 6 between upper sealing upper flange 2 and lower sealing lower flange 11, detonator payment to a porter 4 is connected through described wire casing with initiator 10, and explosion velocity test lead 5 is connected with detonation velocity meter 15 also through described wire casing.
Also including the thermometer 1 for measuring explosive sample 7 temperature, it is internal that the lower end of thermometer is placed on explosive sample 7 through upper sealing upper flange.
Last it is noted that above example only in order to the present invention is described and and unrestricted technical scheme described in the invention, therefore, although this specification with reference to each above-mentioned embodiment to present invention has been detailed description, but, it will be understood by those within the art that, still the present invention can being modified or equivalent replace, and all are without departing from the technical scheme of the spirit and scope of the present invention and improvement thereof, it all should be encompassed in scope of the presently claimed invention.
Claims (3)
1. test the device of explosion velocity of explosive under low temperature for one kind, it is characterized in that, including blast cavity, the freezing attemperator being located in explosion chamber body and test system, blast cavity has body (13), the lower end of described body is provided with the lower sealing (14) of closed tube lower end, and the upper end of body is provided with upper sealing upper flange (2) and the lower sealing lower flange (11) of closed tube upper end；Freezing attemperator includes the saline solution nilas (9) and the heat-preservation cotton (12) that set gradually from outside to inside；There is the groove of explosive sample (7) at heat-preservation cotton center；Test system includes initiator (10) and the detonation velocity meter (15) of being located at described body side, and the bottom of explosive sample is provided with detonator (8), and detonator is connected with initiator by detonator payment to a porter (4)；Being provided with two probes in the middle part of explosive sample, probe is connected with detonation velocity meter by explosion velocity test lead (5).
2. as claimed in claim 1 a kind of test the device of explosion velocity of explosive under low temperature, it is characterized in that, it is provided with wire casing (6) between upper sealing upper flange (2) and lower sealing lower flange (11), detonator payment to a porter is through described wire casing, and explosion velocity test lead is also through described wire casing.
3. as claimed in claim 1 a kind of test the device of explosion velocity of explosive under low temperature, it is characterised in that also including the thermometer (1) for measuring explosive specimen temperature, the lower end of described thermometer is placed on inside explosive sample through upper sealing upper flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610127615.XA CN105784961A (en) | 2016-03-07 | 2016-03-07 | Device for testing detonation velocity of explosive at low temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610127615.XA CN105784961A (en) | 2016-03-07 | 2016-03-07 | Device for testing detonation velocity of explosive at low temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105784961A true CN105784961A (en) | 2016-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610127615.XA Pending CN105784961A (en) | 2016-03-07 | 2016-03-07 | Device for testing detonation velocity of explosive at low temperature |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201429624Y (en) * | 2009-04-20 | 2010-03-24 | 昆明理工大学 | Device for testing underwater explosion velocity of explosive |
| CN103901178A (en) * | 2012-12-29 | 2014-07-02 | 南京理工大学 | Determination method for storage life of emulsion explosive |
| CN204165971U (en) * | 2014-10-27 | 2015-02-18 | 福建海峡科化股份有限公司 | A kind of emulsion [explosive water resistant compressive property detection device |
| CN204461291U (en) * | 2015-03-20 | 2015-07-08 | 西安康明斯发动机有限公司 | A kind of testing tool for measuring step shaft size error |
| CN204903525U (en) * | 2015-08-05 | 2015-12-23 | 无锡市计量检定测试中心 | Gas detector environmental test case |
| CN105372404A (en) * | 2015-11-03 | 2016-03-02 | 中煤科工集团重庆研究院有限公司 | Low-temperature gas explosion characteristic test method |
| CN205404568U (en) * | 2016-03-07 | 2016-07-27 | 湖北帅力化工有限公司 | Device of explosive explosion velocity under test low temperature |
-
2016
- 2016-03-07 CN CN201610127615.XA patent/CN105784961A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201429624Y (en) * | 2009-04-20 | 2010-03-24 | 昆明理工大学 | Device for testing underwater explosion velocity of explosive |
| CN103901178A (en) * | 2012-12-29 | 2014-07-02 | 南京理工大学 | Determination method for storage life of emulsion explosive |
| CN204165971U (en) * | 2014-10-27 | 2015-02-18 | 福建海峡科化股份有限公司 | A kind of emulsion [explosive water resistant compressive property detection device |
| CN204461291U (en) * | 2015-03-20 | 2015-07-08 | 西安康明斯发动机有限公司 | A kind of testing tool for measuring step shaft size error |
| CN204903525U (en) * | 2015-08-05 | 2015-12-23 | 无锡市计量检定测试中心 | Gas detector environmental test case |
| CN105372404A (en) * | 2015-11-03 | 2016-03-02 | 中煤科工集团重庆研究院有限公司 | Low-temperature gas explosion characteristic test method |
| CN205404568U (en) * | 2016-03-07 | 2016-07-27 | 湖北帅力化工有限公司 | Device of explosive explosion velocity under test low temperature |
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Application publication date: 20160720 |
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| RJ01 | Rejection of invention patent application after publication |