CN103604831A - Method for testing whether a chemical product has an explosion diffusing capability - Google Patents
Method for testing whether a chemical product has an explosion diffusing capability Download PDFInfo
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- CN103604831A CN103604831A CN201310488522.6A CN201310488522A CN103604831A CN 103604831 A CN103604831 A CN 103604831A CN 201310488522 A CN201310488522 A CN 201310488522A CN 103604831 A CN103604831 A CN 103604831A
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Abstract
The invention relates to a method for testing whether a chemical product has an explosion diffusing capability, and mainly solves the problems of low security, complex test process and high cost in the prior art. The method for testing whether a chemical product has an explosion diffusing capability provided by the invention comprises the following steps: (1) wrapping the bottom of a steel pipe with film, filling the chemical products into the test steel pipe, and calculating the apparent density of the chemical product; (2) installing a separating layer at the top of the steel pipe, and fixing the steel pipe filled with chemical products on a steel pipe support; (3) clinging a compacted drug column to the steel pipe bottom and fixing the column on the steel pipe support; (4) placing a verification steel plate on the separating layer; (5) fixing a detonator at the bottom of the drug column; (6) carrying out detonation; (7) after the test ends, collecting fragments of verification steel plate and steel pipe, and carrying out a result comparison. The technical scheme can better solve the problems mentioned above, and is used in the test for judging whether the chemical product has explosion diffusing capability.
Description
Technical field
The present invention relates to a kind of chemical products and whether propagate the method for testing of blast ability.
Technical background
The present invention is the method for testing whether deterministic chemical product propagates blast, is subject to the ability of spray detonation after the impact of initiating explosive blast for test substances under the sealing condition of steel pipe.Tested explosive is subject to the function influence of the shock wave of known pressure.This shock wave relies on initiating explosive and shock wave pressure to produce.The shock wave thing that whether sets off an explosion explodes can reach a conclusion according to the mechanics effect after explosive blast completely, and whether the hole being penetrated by blast as upper in iron plate or the steel pipe of splendid attire sample break completely; Sample in test is exposed to by the separation layer of a known properties (generally using PMMA)) under shock wave after dying down.The function of this barrier not only weakens the shock wave from donor powder charge, can also be by acceptor powder charge and explosion product (high-temp waste gas, burning particles) isolation.The present invention has designed and has comprised method of testing program, test steel pipe, checking version, the mould of suppressing primary explosive column, the wooden bracing frame of steel pipe etc.
CN200920033498 discloses a kind of inflammable gas, dust explosion, propagation and datonation-inhibition characteristic test device, it is characterized in that: comprise explosion test pipeline, the gas distributing system communicating with explosion test pipeline respectively and powder sprinkling system, to passing into firing system, the data test acquisition system that inflammable gas in explosion test pipeline or dust light a fire and the host computer joining with described data test acquisition system; Described data test acquisition system comprises the sensor group that is laid on explosion test pipeline, respectively described sensor group institute detection signal is amplified to the signal conditioner of conditioning and the Dynamic Data Acquiring analytic system of joining with described signal conditioner, and described Dynamic Data Acquiring analytic system connects host computer; Described sensor group comprises in experimentation carries out to the temperature of explosion test pipe interior, pressure and flame propagation velocity the temperature sensor, pressure transducer and the ultraviolet flame detector that detect in real time respectively; Described gas distributing system comprises air compressor machine, vacuum pump and gas cylinder, between described air compressor machine, vacuum pump and gas cylinder and explosion test pipeline, all by pipeline, is connected; On described explosion test pipeline, corresponding exhausr port, the dust of installing for powder sprinkling system and the Explosion suppressant of being provided with sprays all mixed mozzles and connecing for air compressor machine interface and vacuum pump that described air compressor machine and vacuum pump are installed of interface, distribution, and described gas cylinder all mixes mozzle by the flammable mixed gas distribution pipeline of polycomponent and described distribution and joins.This device design is complicated, and cost is higher.
Summary of the invention
Technical matters to be solved by this invention is that in prior art, security is low, test process is complicated, cost is higher, and because explosive consumption is lack of standardization, easily cause the problem of unsafe factor, provide a kind of new chemical products whether to propagate the method for testing of blast ability.The test whether the method propagates blast ability for chemical products, have safe, test process is simple, lower-cost advantage.
For addressing the above problem, the technical solution used in the present invention is as follows: whether a kind of chemical products propagate the method for testing of blast ability, comprise the following steps:
(1) steel pipe bottom film wrapped, is filled to described chemical products in test steel pipe, and calculates the pseudodensity of chemical products;
(2) separation layer is filled to the top of steel pipe, and the steel pipe that installs chemical products is fixed on steel pipe support;
(3) pressed explosive powder column, and the powder column suppressing is close to steel pipe bottom is fixed on steel pipe support;
(4) checking steel plate is positioned over above separation layer;
(5) detonator is placed in detonator bearing, and is close on the steel pipe support that powder column is fixed on powder column bottom;
(6) mounted steel pipe support is moved in blast tower, ignite;
(7) after off-test, collect checking steel plate and steel pipe fragment, carry out result comparison;
Wherein explosive column requirement is 150～170 grams of explosive/waxes, and density is 1.6 ± 0.0g/cm
3, the diameter of explosive column is 50 ± 1mm, explosive column quantity is at least 4.
In technique scheme, preferably, described separation layer is to be the plate of material of inertia with chemical products.
In technique scheme, preferably, described explosive column code glues with adhesive tape together, is close to steel pipe bottom and is fixed on steel pipe support with adhesive tape.
In technique scheme, preferably, the assessment of described test findings is according to the tearing type of steel pipe and verifies whether Durchgangshohle judges version, if steel pipe breaks completely or verifies that steel plate has Durchgangshohle, illustrate that these chemical products have the blast of propagation ability, any other result is all considered as these chemical products and does not possess the blast of propagation ability.
In technique scheme, preferably, described steel pipe is cold drawn seamless carbon steel tube, both ends open.
In technique scheme, preferably, described checking steel plate is square mild carbon steel; The base of steel pipe support is square mild carbon steel, and other position is wooden.
In technique scheme, preferably, at least two layers of polyethylene film wrapped of described steel pipe bottom, is fixed on steel pipe.
In method of testing of the present invention, whole test process simplicity of design, and also the material adopting is common material, cost is lower, and test process is simple, and due to explosive consumption standard, can not cause unsafe factor, safe, obtained good technique effect.
Accompanying drawing explanation
Fig. 1 is the proving installation wiring layout of the method for the invention.
(A) separation layer; (B) checking version; (C) steel pipe; (D) substances; (E) powder column; (F) detonator bearing; (G) detonator; (H) plastic foil.
Below by embodiment, the invention will be further elaborated, but be not limited only to the present embodiment.
Embodiment
[embodiment 1]
On proving installation as shown in Figure 1, the concrete specification of each parts is:
Steel pipe: material is cold drawn seamless carbon steel tube, both ends open, overall diameter 48 ± 2mm, wall thickness is 4.0 ± 0.1mm, length is 400 ± 5mm.
Checking steel plate: material is square mild carbon steel, length and width 150 ± 10mm, thick 3.2 ± 0.2mm.
Steel pipe support: base is square mild carbon steel, length and width 350 ± 20mm, thick 50 ± 5mm; Center grooved long 120 ± 5mm, wide 50 ± 5mm, groove depth 35 ± 5mm; Support the long 800mm ± 10mm of plank, wide 44 ± 1mm, thick 49 ± 1mm.
Because the pseudodensity of solid matter has great impact to test result, during test, must record, the pseudodensity of solid should be determined by measuring the volume of steel pipe and the weight of sample.
If test substances is liquid, do not need to pay close attention to pseudodensity, fill steel pipe.
Concrete testing procedure is as follows:
1, compacting cyclonite powder column, it is 160 grams of cyclonite/waxes (mass ratioes 95/5) that powder column requires, and diameter is 50 ± 1mm, and density is 1.6 ± 0.05g/cm, and the height of calculating is 50mm; Because this dose is larger, danger coefficient is higher, so dose is kept to each 40 grams during designing mould, suppresses, and adopts 4 powder columns of compacting, and each powder column height is 12.5mm, but guarantees that the density of powder column is 1.6 ± 0.05g/cm3.Owing to relating to explosive, danger coefficient is higher, and filling medicine, compacting powder column all carry out in meeting the explosion-proof cell of requirement of explosion proof, and oil press adopts mechanization to control.
2, (reaching plastic yield) tightly wrapped with 2 to 3 layers of polyethylene film that 0.08mm is thick in steel pipe bottom, uses adhesive tape fixed film, loads substances to steel pipe, and calculates the pseudodensity of solid sample.
3, test substance is filled to the top of steel pipe, the steel pipe that installs sample is fixed on steel pipe wooden timbering with adhesive tape.
4,4 powder column codes that suppress are glued with adhesive tape together, be close to steel pipe bottom and be fixed on wooden timbering with adhesive tape.
5, checking steel plate is positioned over to steel pipe top.
6, detonator is placed in detonator bearing, and with adhesive tape, is fixed on the wooden timbering of powder column bottom.
7, above mounted wooden timbering is positioned on base, and moves in blast tower, adopt remote electric detonator blasting technology, ignite.
8, after off-test, collect checking version and steel pipe fragment, carry out result comparison.
The assessment of test findings is according to the tearing type of steel pipe and verifies whether Durchgangshohle judges version, if there is following result, is "+" result, illustrates that material has the blast of propagation ability.
(1) steel pipe breaks completely;
(2) checking version is worn a hole.
Any other result is all considered as "-" result, and material does not possess the blast of propagation ability.
Claims (7)
1. whether chemical products propagate a method of testing for blast ability, comprise the following steps:
(1) steel pipe bottom film wrapped, is filled to described chemical products in test steel pipe, and calculates the pseudodensity of chemical products;
(2) separation layer is filled to the top of steel pipe, and the steel pipe that installs chemical products is fixed on steel pipe support;
(3) pressed explosive powder column, and the powder column suppressing is close to steel pipe bottom is fixed on steel pipe support;
(4) checking steel plate is positioned over above separation layer;
(5) detonator is placed in detonator bearing, and is close on the steel pipe support that powder column is fixed on powder column bottom;
(6) mounted steel pipe support is moved in blast tower, ignite;
(7) after off-test, collect checking steel plate and steel pipe fragment, carry out result comparison;
Wherein explosive column requirement is 150～170 grams of explosive/waxes, and density is 1.6 ± 0.05g/cm
3, the diameter of explosive column is 50 ± 1mm, explosive column quantity is at least 4.
2. whether chemical products propagate the method for testing of blast ability according to claim 1, it is characterized in that described separation layer is for being the plate of material of inertia with chemical products.
3. whether chemical products propagate the method for testing of blast ability according to claim 1, it is characterized in that described explosive column code glues with adhesive tape together, are close to steel pipe bottom and are fixed on steel pipe support with adhesive tape.
4. whether chemical products propagate the method for testing of blast ability according to claim 1, the assessment that it is characterized in that described test findings is according to the tearing type of steel pipe and verifies whether Durchgangshohle judges version, if steel pipe breaks completely or verifies that steel plate has Durchgangshohle, illustrate that these chemical products have the blast of propagation ability, any other result is all considered as these chemical products and does not possess the blast of propagation ability.
5. whether chemical products propagate the method for testing of blast ability according to claim 1, it is characterized in that described steel pipe is cold drawn seamless carbon steel tube, both ends open.
6. whether chemical products propagate the method for testing of blast ability according to claim 1, it is characterized in that described checking steel plate is square mild carbon steel; The base of steel pipe support is square mild carbon steel, and other position is wooden.
7. whether chemical products propagate the method for testing of blast ability according to claim 1, it is characterized in that two layers of polyethylene film wrapped at least for described steel pipe bottom, are fixed on steel pipe.
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| CN201310488522.6A CN103604831B (en) | 2013-10-17 | 2013-10-17 | Whether chemical products possess the method for testing propagating explosions |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651810A (en) * | 2015-12-30 | 2016-06-08 | 北京科技大学 | Pipeline system for recording detonation inner structure and method of pipeline system |
| CN106248553A (en) * | 2016-08-26 | 2016-12-21 | 中国工程物理研究院化工材料研究所 | Based on the gas osmosis characterizing method to plastic binded median surface structure |
| CN106908480A (en) * | 2017-03-31 | 2017-06-30 | 大连理工大学 | Dust explosion flame transmission measuring behavior experimental system |
| CN109540965A (en) * | 2018-11-15 | 2019-03-29 | 中国工程物理研究院化工材料研究所 | Explosive fragmentation driving capability evaluating apparatus and method |
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2013
- 2013-10-17 CN CN201310488522.6A patent/CN103604831B/en active Active
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| JPS5240397A (en) * | 1975-09-26 | 1977-03-29 | Ajinomoto Co Inc | Mthod of measuring flash point |
| US4140004A (en) * | 1977-11-09 | 1979-02-20 | Stauffer Chemical Company | Apparatus for determining the explosion limits of a flammable gas |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651810A (en) * | 2015-12-30 | 2016-06-08 | 北京科技大学 | Pipeline system for recording detonation inner structure and method of pipeline system |
| CN105651810B (en) * | 2015-12-30 | 2018-09-14 | 北京科技大学 | A kind of pipe-line system and its method of record detonation internal structure |
| CN106248553A (en) * | 2016-08-26 | 2016-12-21 | 中国工程物理研究院化工材料研究所 | Based on the gas osmosis characterizing method to plastic binded median surface structure |
| CN106908480A (en) * | 2017-03-31 | 2017-06-30 | 大连理工大学 | Dust explosion flame transmission measuring behavior experimental system |
| CN109540965A (en) * | 2018-11-15 | 2019-03-29 | 中国工程物理研究院化工材料研究所 | Explosive fragmentation driving capability evaluating apparatus and method |
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