CN105738193A - High pressure container mechanical environment test safety protection method - Google Patents
High pressure container mechanical environment test safety protection method Download PDFInfo
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- CN105738193A CN105738193A CN201410743129.1A CN201410743129A CN105738193A CN 105738193 A CN105738193 A CN 105738193A CN 201410743129 A CN201410743129 A CN 201410743129A CN 105738193 A CN105738193 A CN 105738193A
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Abstract
The invention relates to the technical field of mechanical environment test safety protection and concretely relates to a high pressure container mechanical environment test safety protection method. The method solves the problem that when high pressure vessel contacts with the ground, under combined action of dynamic stress and internal pressure, the high pressure vessel can produce fragments and form a shock wave damaging to the surrounding environment. The method comprises installing a protection device, calculating a safe work distance and setting a safe work zone. Through the safety protection method, more than 50 high pressure container mechanical environment tests are carried out in recent three years. A practice shows that the safety protection method realizes comprehensive risk analysis, has a reasonable safety distance, has a protection measure in place and guarantees smooth development of a high pressure container mechanical environment test.
Description
Technical field
The present invention relates to dynamic environmental test technical field of safety protection, be specifically related to a kind of high-pressure bottle dynamic environmental test safety protecting method.
Background technology
In science and techniques of defence field, widely, along with improving constantly of spacecraft and the performance of weapon, life-span and reliability requirement, the ground experiment of high-pressure bottle is to checking design and manufactures and serves very important effect for the range of application of high-pressure bottle.
High-pressure bottle is under its duty, except internal gas pressure, also subject to certain dynamics environment.The intrinsic pressure impact on high-pressure bottle substantially static stress, high-pressure bottle is then applied certain dynamic stress by dynamics environment.Under in working order, the stress that container bears is combined stress.Traditional ground experiment, high-pressure bottle only carries out the bulge test of hydraulic pressure, for verifying static strength, or carry out the vibration test under Light Condition to examine its fatigue resistance, but above wire examination method has only been examined the intensity of container under simple stress situation and stood the ability of dynamics environment.In recent years, high-pressure bottle is with the dynamic environmental test under pressure condition, and under examination true stress state, the mechanical environment adaptive capacity of container, is increasingly subject to the attention of design department.
Carry out, with the dynamic environmental test of container under pressure condition, there is certain danger, dynamic stress in dynamic environmental test and under intrinsic pressure compound action container be likely to reveal and break, cause that gases at high pressure leak, produce to threaten to personnel and equipment.Properly settling of security protection problem, becomes the key technology carrying out high-pressure bottle dynamic environmental test.
Summary of the invention
Present invention aim to address in high-pressure bottle surface process, high-pressure bottle is likely to produce fragment and form shock wave under dynamic stress and intrinsic pressure compound action, the problem that surrounding enviroment are worked the mischief, provide one can high speed fragment and shock wave be protected simultaneously, reduce the high-pressure bottle dynamic environmental test safety protecting method of operator safety risk.
The present invention is achieved in that
A kind of high-pressure bottle dynamic environmental test safety protecting method, specifically includes following steps:
The first step: install preventer；
Second step: calculate trouble free service distance；
3rd step: area of safety operaton is set.
The first step as above, installs preventer, protects for shedding out high speed fragment after high-pressure bottle is broken in high-pressure bottle periphery.
Preventer as above adopts blast wall or wall of sandbags.
Second step as above, specifically includes following steps: step 2.1: calculates compression gas physical explosion energy, adopts isothermal expansion method:
In formula: the physical explosion energy of E gas, J；
Absolute pressure before P gas burst, Pa；
P0High-pressure bottle external environment pressure, Pa；
V high-pressure bottle volume, m3；
Step 2.2: gas burst ENERGY E is scaled TNT equivalent Q, formula is:
Q=E/k
In formula: Q is explosive TNT equivalent, kg；K is TNT explosion energy coefficient 4.5 × 106, J/kg；
Step 2.3: calculate the safe distance under corresponding explosive TNT equivalent, Factory Building internal security distance computing formula is as follows:
D=kQ1/3
In formula: D is trouble free service distance；K is safety coefficient, and K takes 3.6.
3rd step as above, according to the trouble free service distance D that second step obtains, is arranged on operation position on the distance high-voltage container position more than trouble free service distance D.
The invention has the beneficial effects as follows:
The present invention includes installing preventer, calculating trouble free service distance and arrange the step of area of safety operaton.Adopt the safety protecting method of the present invention, over nearly 3 years, carry out 50 multinomial high-pressure bottle dynamic environmental tests.Practice have shown that safety means of defence risk analysis is comprehensive, safe distance is arranged rationally, and safeguard procedures put in place, has ensured carrying out smoothly of high-pressure bottle dynamic environmental test.
Accompanying drawing explanation
Fig. 1 is the flow chart of a kind of high-pressure bottle dynamic environmental test safety protecting method of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described further.
As it is shown in figure 1, a kind of high-pressure bottle dynamic environmental test safety protecting method, specifically include following steps:
The first step: install preventer.
Preventer is installed in high-pressure bottle periphery, protects for shedding out high speed fragment after high-pressure bottle is broken.Preventer adopts blast wall or wall of sandbags.
Second step: calculate trouble free service distance.
Step 2.1: calculate compression gas physical explosion energy, adopt isothermal expansion method:
In formula: the physical explosion energy of E gas, J；
Absolute pressure before P gas burst, Pa；
P0High-pressure bottle external environment pressure, Pa；
V high-pressure bottle volume, m3。
Step 2.2: gas burst ENERGY E is scaled TNT equivalent Q, formula is:
Q=E/k
In formula: Q is explosive TNT equivalent, kg；K is TNT explosion energy coefficient 4.5 × 106, J/kg.
Step 2.3: calculate the safe distance under corresponding explosive TNT equivalent, Factory Building internal security distance computing formula is as follows:
D=kQ1/3
In formula: D is trouble free service distance；K is safety coefficient, and K takes 3.6.
3rd step: area of safety operaton is set.
According to the trouble free service distance D that second step obtains, operation position is arranged on the distance high-voltage container position more than trouble free service distance D.
The present invention includes installing preventer, calculating trouble free service distance and arrange the step of area of safety operaton.Adopt the safety protecting method of the present invention, over nearly 3 years, carry out 50 multinomial high-pressure bottle dynamic environmental tests.Practice have shown that safety means of defence risk analysis is comprehensive, safe distance is arranged rationally, and safeguard procedures put in place, has ensured carrying out smoothly of high-pressure bottle dynamic environmental test.
Claims (5)
1. a high-pressure bottle dynamic environmental test safety protecting method, specifically includes following steps:
The first step: install preventer；
Second step: calculate trouble free service distance；
3rd step: area of safety operaton is set.
2. high-pressure bottle dynamic environmental test safety protecting method according to claim 1, it is characterised in that: the described first step, preventer is installed in high-pressure bottle periphery, protects for shedding out high speed fragment after high-pressure bottle is broken.
3. high-pressure bottle dynamic environmental test safety protecting method according to claim 2, it is characterised in that: described preventer adopts blast wall or wall of sandbags.
4. high-pressure bottle dynamic environmental test safety protecting method according to claim 1, it is characterised in that: described second step, specifically include following steps: step 2.1: calculate compression gas physical explosion energy, adopt isothermal expansion method:
In formula: the physical explosion energy of E gas, J；
Absolute pressure before P gas burst, Pa；
P0High-pressure bottle external environment pressure, Pa；
V high-pressure bottle volume, m3；
Step 2.2: gas burst ENERGY E is scaled TNT equivalent Q, formula is:
Q=E/k
In formula: Q is explosive TNT equivalent, kg；K is TNT explosion energy coefficient 4.5 × 106, J/kg；
Step 2.3: calculate the safe distance under corresponding explosive TNT equivalent, Factory Building internal security distance computing formula is as follows:
D=KQ1/3
In formula: D is trouble free service distance；K is safety coefficient, and K takes 3.6.
5. high-pressure bottle dynamic environmental test safety protecting method according to claim 1, it is characterized in that: the 3rd described step, according to the trouble free service distance D that second step obtains, operation position is arranged on the distance high-voltage container position more than trouble free service distance D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410743129.1A CN105738193A (en) | 2014-12-08 | 2014-12-08 | High pressure container mechanical environment test safety protection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410743129.1A CN105738193A (en) | 2014-12-08 | 2014-12-08 | High pressure container mechanical environment test safety protection method |
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| CN105738193A true CN105738193A (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410743129.1A Pending CN105738193A (en) | 2014-12-08 | 2014-12-08 | High pressure container mechanical environment test safety protection method |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU649983A1 (en) * | 1976-03-25 | 1979-02-28 | Восточный научно-исследовательский институт по безопасности работ в горной промышленности | Method of evaluating explosion-proofness of electric equipment with liquid dielectric |
| CN101923007A (en) * | 2009-08-07 | 2010-12-22 | 中国人民解放军理工大学 | Method for calculating safety protection of test bin of high-pressure container |
-
2014
- 2014-12-08 CN CN201410743129.1A patent/CN105738193A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU649983A1 (en) * | 1976-03-25 | 1979-02-28 | Восточный научно-исследовательский институт по безопасности работ в горной промышленности | Method of evaluating explosion-proofness of electric equipment with liquid dielectric |
| CN101923007A (en) * | 2009-08-07 | 2010-12-22 | 中国人民解放军理工大学 | Method for calculating safety protection of test bin of high-pressure container |
Non-Patent Citations (3)
| Title |
|---|
| 孟亦飞等: "含氧氢气钢瓶释放过程危险性分析及处置", 《中国安全科学学报》 * |
| 王凯全: "《化工安全工程学》", 31 October 2007 * |
| 黄成等: "导弹装配测试厂房安全距离标准及应用", 《四川兵工学报》 * |
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Application publication date: 20160706 |
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