CN108061788A - A kind of simulation underwater explosion experiment explosive energy output performance test method - Google Patents
A kind of simulation underwater explosion experiment explosive energy output performance test method Download PDFInfo
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- CN108061788A CN108061788A CN201711201661.0A CN201711201661A CN108061788A CN 108061788 A CN108061788 A CN 108061788A CN 201711201661 A CN201711201661 A CN 201711201661A CN 108061788 A CN108061788 A CN 108061788A
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- water
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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 present invention relates to a kind of simulation underwater explosion experiment explosive energy output performance test method, Method And Principle is to generate gases at high pressure using igniter pad to realize that closed water pot pressurizes by piston, simulates deepwater environment；The test system includes the closed tank body of piston, water injection system, test system and pressurized gas system；It can be solved to obtain the balance pressure after compressing water body according to medicament charging quality with reference to correlation theories knowledge, and then closed water pot test pressure is adjusted by changing pharmacy quality.The test System and method for has the characteristics that pressing time is short, easy to operate, highly effective and safe.
Description
Technical field
The invention belongs to underwater explosion power testing fields.More particularly to a kind of simulation underwater explosion experiment explosive energy
Output performance test method.
Background technology
With the progressively exploitation of resource in deep water, carry out underwater construction using explosive underwater demolition and be also on the increase, to depth
The power research of underwater explosion in water becomes an important problem.In order to simulate deepwater environment, has researcher to closed height
Pressure tank has carried out research.
Wei Xiao has carried out deepwater high-pressure environmental simulation system detailed design (Wei Xiao deep-sea high-pressure environment simulation systems
Design and research [D] Qingdao University of Science and Technology, 2014.), pressurizeed to water using force (forcing) pump, in order to keep pressure, and added
Enter gas compressing apparatus to be balanced hydraulic pressure in cabin.Such device is complicated, and due to the release repeatedly and pressurization of gas,
Explosion accident easily occurs.
Zhong Dongwang etc. is connected using hydraulic test pump by high-pressure water pipe with water pot, using electrical ball valve to water inlet interface, draining
Interface, pressurization interface and release interface controlled (Zhong Dongwang, department sword peak, Li Linna, He Li, Zhu Kuan, Liu Jiancheng, Huang little Wu,
Yin Xiuhong, the behaviour roc simulation compression systems of deepwater environment explosive test container and its application method [P] Hubei：
CN103823037A,2014-05-28.)。
It summarizes and finds, using the pump mode simulation deepwater environment that pressurizes, the test period is long, and experimental cost is high, and design system is multiple
Miscellaneous, force (forcing) pump needs larger water supply flow.Therefore be badly in need of at present it is a kind of can Portable safety simulation deep water mesohigh environment dress
It puts.
The content of the invention
The present invention provides a kind of method for carrying out Simulation Study On Pressure deepwater environment to liquid using explosion generation gases at high pressure；For
Realize above-mentioned purpose, the present invention is in a kind of simulation deep water Underwater Explosion test of such as Fig. 1 in water pot test device, the skill of use
Art scheme is：
Step 1: piston is fixed by fixed pin (2), by putting object mouth (17) in fixed frame (4) center suspension explosive
(5), explosive is connected, other positions suspension Exploding test sensor (7) with initiator (6) by detonating cord, while is put in wall surface
A hydrostatic pressure sensor (8) is put, sensor connection Signal Regulation instrument (9) forms test device with data acquisition computer (10)；
Step 2: close water discharging valve (14), by water filling port (11) to lower tank (3) fill water after keep closed；
Step 3: the high yield gas medicament (13) of theoretical calculation appropriate mass is put into upper tank body (12) by head cover (18),
Igniter is connected by conducting wire with initiator (6), is then turned off exhaust outlet (16), is made its closed；
Step 4: carrying out upper tank body combustion experiment, initiator (6) starts the igniter of high yield gas medicament (13), high yield
Gas medicament (13) generate high pressure gas expansion, and with upper tank body (12) interior gas mixing, formed stable high voltage gas.
Step 5: extracting fixed pin (2), gases at high pressure act on piston (1), pressurize to the interior water body of lower tank (3), water body
Pressure increases, and reaches test requirements document when data acquisition computer (10) receives hydrostatic pressure sensor (8) and measures water body pressure
Preset pressure, you can initiator (6) is sent a signal to by collecting computer (10), so as to ignition charge (5), it is deep to carry out simulation
Water explosion test.
It is handled Step 6: can waste water be discharged to wastewater disposal basin (15) by discharge outlet (14) after the test, exhaust gas leads to
Cross exhaust outlet (16) discharge.
The method that compression water body balance pressure power is calculated according to pharmacy quality is as follows：
Abstract entity model is geometrical model, if h1For the height of gas cavity, h2For liquid initial height, r is tank body half
Footpath.Initial gas and water pressure are p0, it is p that pressure is balanced after the burning of upper tank body gas cavity1, hydraulic pressure contracting after gas and
Pressure is p1' and p2', the height that cavity changes is Δ h.
For gas expansion, according to the state equation of actual gas：Using van der Waals equation
A in formula, b are known as Van der Waals constant.
What if gas carried out is an adiabatic process：
pVγ=C (2)
Wherein C is constant, is substituted into
V=Sxh (3)
It can obtain
phγ=C (4)
For expanding front and rear gas, if cross-sectional area S is constant, have：
For liquid compression, liquid compression bulk modulus k is：
In equation Δ p be liquid variation pressure, Δ V be variation volume, V0For initial volume.
Before and after compression
p′1=p '2
P can be calculated2′。
Description of the drawings
Fig. 1 is a kind of simulation closed water pot test device figure of underwater explosion experiment gas compression of the present invention.
Specific embodiment
Further describing for the present invention is provided with reference to example.
Example 1：
Known Φ 2x2.2m cylindrical tanks,
h1=0.2m, h2=2m, r=1m
Initial air volume p0=105Pa, bulk modulus k=2.18 × 10 of water9Pa, adiabatic coefficent γ=1.4, then on
Tank body volume,
V0, a=π R2h1=0.6283m3
Certain high yield gas medicament 9.45Kg is in 0.027m3(V1, a) volume can generate 500MPa (p1, g) pressure,
p1, g=500MPa, V1, a=0.027m3
The quality medicament is put into upper tank body, calculates height change h and balance pressed gas p ' after hydraulic pressure contracting2。
Balance pressure is after upper tank body burning：
If hydraulic pressure contracting after gas and pressure be p '1With p '2,
By the equation of gas state：
With hydraulic pressure contracting equation：
Solution obtains：
Δ h=0.018m
p′2=19.2MPa
By calculating, pressure 19.2MPa when hydraulic pressure contracting reaches equilibrium state, the hydraulic pressure being equivalent in the 1920m depth of waters meets
Simulate underwater explosion experiment demand.
Claims (3)
1. a kind of simulation underwater explosion experiment explosive energy output performance test method, it is characterised in that：Under a kind of simulation water
Explosive test water pot brisance test device, application method are：
Step 1: piston is fixed by fixed pin (2), by putting object mouth (17) in fixed frame (4) center suspension explosive (5), fry
Medicine is connected, other positions hang Exploding test sensor (7), while quiet in wall surface placement one by detonating cord with initiator (6)
Hydraulic pressure sensor (8), sensor connection Signal Regulation instrument (9) form test device with data acquisition computer (10)；
Step 2: close water discharging valve (14), by water filling port (11) to lower tank (3) fill water after keep closed；
Step 3: being put into the high yield gas medicament (13) of theoretical calculation appropriate mass to upper tank body (12) by head cover (18), light a fire
Device is connected by conducting wire with initiator (6), is then turned off exhaust outlet (16), is made its closed；
Step 4: carrying out upper tank body combustion experiment, initiator (6) starts the igniter of high yield gas medicament (13), high yield gas medicine
Agent (13) generate high pressure gas expansion, and with upper tank body (12) interior gas mixing, formed stable high voltage gas；
Step 5: extracting fixed pin (2), gases at high pressure act on piston (1), pressurize to the interior water body of lower tank (3), water body pressure
Increase, reach the default of test requirements document when data acquisition computer (10) receives hydrostatic pressure sensor (8) and measures water body pressure
Pressure, you can initiator (6) is sent a signal to by collecting computer (10), so as to ignition charge (5), it is quick-fried to carry out simulation deep water
Fried experiment；
It is handled Step 6: can waste water be discharged to wastewater disposal basin (15) by discharge outlet (14) after the test, exhaust gas passes through row
Gas port (16) is discharged.
2. the closed water pot test System and method for of a kind of simulation underwater explosion experiment gas compression as described in claim 1,
It is characterized in that：The method for meeting test requirements document suitable medicament quality is obtained described in step 3 by theoretical calculation.
3. the closed water pot test System and method for of a kind of simulation underwater explosion experiment gas compression as described in claim 1,
It is characterized in that：Hydraulic pressure sensor signal triggering explosive initiation method is measured described in step 5.
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| CN201711201661.0A CN108061788A (en) | 2017-11-27 | 2017-11-27 | A kind of simulation underwater explosion experiment explosive energy output performance test method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827996A (en) * | 2019-03-26 | 2019-05-31 | 北京石油化工学院 | Sewage network flammable gas explosion communication process test device and method |
| CN109856184A (en) * | 2019-03-04 | 2019-06-07 | 北京石油化工学院 | Constraint space flammable gas explosion flow-field test device and method under water storage condition |
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| CN102072689A (en) * | 2010-11-22 | 2011-05-25 | 武汉科技大学 | Experimental device for simulating 200-meter deep water blasting under moving water state |
| CN102226673A (en) * | 2011-04-29 | 2011-10-26 | 昆明理工大学 | Miniature exploder for testing deep sea pressure resistance of explosive |
| CN103823037A (en) * | 2014-03-20 | 2014-05-28 | 武汉科技大学 | Pressurization system of container for simulating explosion test in deep water environments as well as using method thereof |
| CN105492085A (en) * | 2013-06-28 | 2016-04-13 | 赫拉克勒斯公司 | Method for delivering a liquid pressurised by the combustion gases from at least one pyrotechnic charge |
| CN105651960A (en) * | 2015-12-31 | 2016-06-08 | 中国船舶重工集团公司第七○二研究所 | Device and method for measuring underwater explosion violence of explosive |
| CN206523102U (en) * | 2017-01-10 | 2017-09-26 | 西安军潮机电设备有限公司 | A kind of underwater explosion storehouse |
-
2017
- 2017-11-27 CN CN201711201661.0A patent/CN108061788A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072689A (en) * | 2010-11-22 | 2011-05-25 | 武汉科技大学 | Experimental device for simulating 200-meter deep water blasting under moving water state |
| CN102226673A (en) * | 2011-04-29 | 2011-10-26 | 昆明理工大学 | Miniature exploder for testing deep sea pressure resistance of explosive |
| CN105492085A (en) * | 2013-06-28 | 2016-04-13 | 赫拉克勒斯公司 | Method for delivering a liquid pressurised by the combustion gases from at least one pyrotechnic charge |
| CN103823037A (en) * | 2014-03-20 | 2014-05-28 | 武汉科技大学 | Pressurization system of container for simulating explosion test in deep water environments as well as using method thereof |
| CN105651960A (en) * | 2015-12-31 | 2016-06-08 | 中国船舶重工集团公司第七○二研究所 | Device and method for measuring underwater explosion violence of explosive |
| CN206523102U (en) * | 2017-01-10 | 2017-09-26 | 西安军潮机电设备有限公司 | A kind of underwater explosion storehouse |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856184A (en) * | 2019-03-04 | 2019-06-07 | 北京石油化工学院 | Constraint space flammable gas explosion flow-field test device and method under water storage condition |
| CN109827996A (en) * | 2019-03-26 | 2019-05-31 | 北京石油化工学院 | Sewage network flammable gas explosion communication process test device and method |
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Application publication date: 20180522 |