CN105738054A - Propellant leakage emergency processing method - Google Patents
Propellant leakage emergency processing method Download PDFInfo
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- CN105738054A CN105738054A CN201410741757.6A CN201410741757A CN105738054A CN 105738054 A CN105738054 A CN 105738054A CN 201410741757 A CN201410741757 A CN 201410741757A CN 105738054 A CN105738054 A CN 105738054A
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Abstract
The present invention belongs to the field of the hazardous article mechanical environment test safety protection technology and specifically relates to a propellant leakage emergency processing method. The propellant leakage emergency processing method is configured to perform classification of liquid propellant leakage risk to determine whether there is liquid propellant leakage or not and the types of the liquid propellant leakage and pointedly employ different emergency processing measures according to propellant leakage conditions with different grades and perform propellant waste liquid and sewage processing. The propellant leakage emergency processing method is suitable for employing the propellant container mechanical environment test of a real propellant to obtain an accurate assessment result, and is able to directly perform test run performance assessment after the mechanical environment test is end. The safety problem is solved that a container may be leaked or cracked under the combined action of dynamic stress and internal pressure in the mechanical environment test, and the fire and the generation of explosion are avoided.
Description
Technical field
The invention belongs to dangerous materials dynamic environmental test technical field of safety protection, be specifically related to a kind of propellant leakage emergency processing method.
Background technology
Liquid propellant is to enter rocket engine, experience chemical reaction and thermodynamics change with liquid condition, provides the material of energy and working medium for propulsion system.Test chamber carries out liquid propellant container vibration test, and overriding concern is the safety of test(ing) medium.The security performance of liquid propellant is primarily referred to as it catch fire, explosion hazard and toxicity.Liquid propellant will not catch fire and explode at typical condition, only just causing under certain external condition effect and catch fire and explode, these external conditions include: the incendiary sources such as heat, naked light or electric spark, mechanism, shock wave, radiation effects and chemical energy.
Current liquid propellant container vibration test, adopts simulated solution to replace propellant to carry out vibration test.The vibration test replacing propellant with simulated solution is applicable to the development stage, and empirical risk and cost are low.Yet with the physical characteristic difference of simulated solution Yu propellant, cause adopting simulated solution test examination abundant not, and after vibration test terminates, it is impossible to it is made directly test run service check.Therefore after product enters the sample stage, it is necessary to adopt true propellant state to carry out the dynamic environmental test of Pressure Vessel.Owing to propellant containers dynamic environmental test has certain danger, dynamic stress in dynamic environmental test and under intrinsic pressure compound action container be likely to leakage and break, cause that propellant leaks, produce to threaten to personnel and equipment.It is thus desirable to provide a kind of propellant containers dynamic environmental test propellant leakage emergency processing method.
Summary of the invention
Present invention aims to adopt propellant to carry out vibration test need to avoid propellant leakage to cause security risk and the technical problem of personnel's injury, it is provided that a kind of propellant containers dynamic environmental test propellant leakage processing method.
A kind of propellant leakage emergency processing method, in turn includes the following steps:
Step 1. liquid propellant risk of leakage classification, the principal risk of propellant containers dynamic environmental test is in that in dynamic environmental test dynamic stress is likely to cause the damage of propellant containers, causes that the liquid propellant in propellant containers leaks.Liquid propellant includes oxidant and fuel agent, liquid propellant leakage has three kinds of situations: a kind of be the fuel of liquid propellant and oxidant leaks simultaneously, self-ignition type propellant catches fire immediately after leaking simultaneously and mixing or explodes, meet incendiary source after nonflammable type propellant leakage mixing also to catch fire or explode, therefore this situation is called prime risk propellant leakage；Second is the fuel of liquid propellant or oxidant individually leaks in a large number, and fuel individually leaks chance incendiary source and can catch fire or explode, and oxidant individually leaks meets combustible and can catch fire or explode, and therefore this situation is called light breeze danger propellant leakage；The third is fuel or the independent micro-leakage of oxidant of liquid propellant, fuel individually leaks chance incendiary source and can catch fire or explode, oxidant individually leaks chance combustible and can catch fire or explode, and risk is less relative to light breeze danger, therefore this situation is called tertiary risk propellant leakage；
Step 2. determines whether there is liquid propellant leakage, in process of the test, test situation in Product Status and Factory Building is monitored by safety guarantee personnel safety zone inside by the video monitoring system in pilot region, when finding product exception, assay device should be closed immediately, wear protective garment and holohedral form canister respirator, wear protective gloves and carry in gas detector entrance pilot region and detect, judge whether propellant leakage
Step 2.1 is when the propellant gas concentration that gas detector detects is less than 0.5ppm and when not being visually observed liquid propellant micro-leakage, it is judged that for being absent from the situation of propellant leakage, safety guarantee personnel leave pilot region, proceed test；
Step 2.2 more than 0.5ppm and is judged as the situation that there is propellant micro-leakage when propellant gas concentration less than 5ppm or when being visually observed liquid propellant micro-leakage；When propellant gas concentration more than 5ppm or is visually observed when liquid propellant leaks in a large number and is judged as there is the situation that propellant leaks in a large number；
Step 3. takes emergency trouble shooting measures, when step 2 judges there is propellant leakage, safety guarantee personnel should cut off the power supply in pilot region immediately, then determine whether, the different situations of liquid propellant leakage in pilot region are determined according to step 1, take steps 3.1 respectively, the emergency trouble shooting measures of step 3.2 or step 3.3, eliminate burning or risk of explosion；
Step 3.1 is defined as prime risk and light breeze danger propellant leakage such as safety guarantee personnel, namely oxidant and fuel agent leak or oxidant and fuel agent are individually revealed in a large number simultaneously, the spraying system of fire fighting in pilot region should be opened immediately, simultaneously except safety guarantee personnel, pilot region and the full complement's emergency evacuation within the scope of periphery 150m thereof；
Step 3.2 is defined as tertiary risk propellant leakage such as safety guarantee personnel, i.e. oxidant or the independent micro-leakage of fuel agent, pilot region, the system pressure of removal assay device should be entered when wearing protective garment and holohedral form canister respirator, wearing protective gloves；
Step 3.2.1 such as safety guarantee personnel are defined as tertiary risk oxidant micro-leakage, carry out oxidant leakage process in accordance with the following steps,
Step 3.2.1.1 is used for collecting, at liquid propellant container leakage position reception container placed below, the oxidant leaked out, and searches the leakage point of liquid propellant container, and leakage point is taked blocking or security measure stop a leak；
The oxidant that step 3.2.1.2 docks in receptacle carries out decontamination process, or places decontamination solution in receiving vessel in advance, collects in waste liquid pans；
Step 3.2.1.3 rinses, with a large amount of water, the liquid propellant container speckling with oxidant and receives vessel surface, rinses the waste water produced and discharges to waste water system after dilution, it is prevented that flows into sewer；
Step 3.2.2 such as safety guarantee personnel are defined as tertiary risk fuel agent micro-leakage, carry out fuel agent leakage in accordance with the following steps and process,
Step 3.2.2.1 is used for collecting, at liquid propellant container leakage position reception container placed below, the fuel agent leaked out, and searches the leakage point of liquid propellant container, and leakage point is taked blocking or security measure stop a leak；
The a large amount of clear water of fuel agent that step 3.2.2.2 docks in receptacle rinse formation fuel agent waste liquid, collect in the waste liquid pans different from oxidant waste liquid；
Step 3.2.2.3 rinses, with a large amount of water, the liquid propellant container speckling with fuel agent and receives vessel surface, rinses the waste water produced and discharges to waste water system after dilution, it is prevented that flows into sewer；
Step 3.3 takes the measure such as decontamination, ventilation to make propellant gas concentration lower than 0.2ppm in hazardous area, and then product is pulled down by product installation personnel from assay device, is then proceeded decontamination by propellant safety guarantee personnel, ventilation operation is down to normally；
Step 4. propellant waste liquid and sewage disposal,
Step 3.2.1.2 and step 3.2.2.2 waste liquid are received step 4.1 the oxidant waste liquid in tank and fuel agent waste liquid decontaminant carries out decontamination process, then waste liquid is received tank and carry out state of the art confirmation, namely receive the propellant concentration in tank according to waste liquid to judge to confirm decontaminating effect, and check its air-tightness；Then waste liquid receives tank transport to propellant production unit；
A small amount of propellant waste liquid that step 4.2 is dropped in pilot region directly uses decontamination solution to process；Rinse the waste water produced to discharge to waste water system after dilution, it is prevented that flow into sewer.
Described is rustless steel, plastic containers or glass container by the reception container in step 3.2.1.1 and step 3.2.2.1.
Described step 3.2.2 fuel agent leakage treatment measures adopt sand directly to adsorb the fuel agent of leakage at the leakage point of liquid propellant container, then rinses sand with clear water and form fuel agent waste liquid, collect in the waste liquid pans different from oxidant waste liquid.
Beneficial effect: technical scheme can be applicable for use with the propellant containers dynamic environmental test of true propellant, it is possible to obtains the result of appraisal more accurately, and after dynamic environmental test terminates, it is possible to it is made directly test run service check.Solve the dynamic stress in dynamic environmental test and under intrinsic pressure compound action container be likely to leakage and break etc. in emergency processing problem, it is possible to avoid propellant leakage to cause catching fire or the serious accident such as blast.
Detailed description of the invention
Below in conjunction with specific embodiment, technical scheme is described further:
Present embodiments providing a kind of propellant leakage emergency processing method, be primarily adapted for use in the propellant containers dynamic environmental test adopting true propellant, processing rapidly when there is propellant leakage, it is to avoid catch fire or the serious accident such as blast.This emergency processing method mainly comprises the steps:
Step 1. liquid propellant risk of leakage classification, the principal risk of propellant containers dynamic environmental test is in that in dynamic environmental test dynamic stress is likely to cause the damage of propellant containers, causes that the liquid propellant in propellant containers leaks.Liquid propellant includes oxidant and fuel agent, liquid propellant leakage has three kinds of situations: a kind of be the fuel of liquid propellant and oxidant leaks simultaneously, self-ignition type propellant catches fire immediately after leaking simultaneously and mixing or explodes, meet incendiary source after nonflammable type propellant leakage mixing also to catch fire or explode, therefore this situation is called prime risk propellant leakage；Second is the fuel of liquid propellant or oxidant individually leaks in a large number, and fuel individually leaks chance incendiary source and can catch fire or explode, and oxidant individually leaks meets combustible and can catch fire or explode, and therefore this situation is called light breeze danger propellant leakage；The third is fuel or the independent micro-leakage of oxidant of liquid propellant, fuel individually leaks chance incendiary source and can catch fire or explode, oxidant individually leaks chance combustible and can catch fire or explode, and risk is less relative to light breeze danger, therefore this situation is called tertiary risk propellant leakage；
Step 2. determines whether there is liquid propellant leakage, in process of the test, test situation in Product Status and Factory Building is monitored by safety guarantee personnel safety zone inside by the video monitoring system in pilot region, when finding product exception (such as: when finding to have gas or liquid flowing near propellant containers), assay device should be closed immediately, wear protective garment and holohedral form canister respirator, wear protective gloves and carry in gas detector entrance pilot region and detect, judge whether propellant leakage
Step 2.1 is when the propellant gas concentration that gas detector detects is less than 0.5ppm and when not being visually observed liquid propellant micro-leakage, it is judged that for being absent from the situation of propellant leakage, safety guarantee personnel leave pilot region, proceed test；
Step 2.2 more than 0.5ppm and is judged as the situation that there is propellant micro-leakage when propellant gas concentration less than 5ppm or when being visually observed liquid propellant micro-leakage；When propellant gas concentration more than 5ppm or is visually observed when liquid propellant leaks in a large number and is judged as there is the situation that propellant leaks in a large number；
Step 3. takes emergency trouble shooting measures, when step 2 judges there is propellant leakage, safety guarantee personnel should cut off the power supply in pilot region immediately, then determine whether, the different situations of liquid propellant leakage in pilot region are determined according to step 1, take steps 3.1 respectively, the emergency trouble shooting measures of step 3.2 or step 3.3, eliminate burning or risk of explosion；
Step 3.1 is defined as prime risk and light breeze danger propellant leakage such as safety guarantee personnel, namely oxidant and fuel agent leak or oxidant and fuel agent are individually revealed in a large number simultaneously, the spraying system of fire fighting in pilot region should be opened immediately, simultaneously except safety guarantee personnel, pilot region and the full complement's emergency evacuation within the scope of periphery 150m thereof；
Step 3.2 is defined as tertiary risk propellant leakage such as safety guarantee personnel, i.e. oxidant or the independent micro-leakage of fuel agent, pilot region, the system pressure of removal assay device should be entered when wearing protective garment and holohedral form canister respirator, wearing protective gloves；
Step 3.2.1 such as safety guarantee personnel are defined as tertiary risk oxidant micro-leakage, carry out oxidant leakage process in accordance with the following steps,
Step 3.2.1.1 is used for collecting the oxidant leaked out at liquid propellant container leakage position reception container placed below, receiving container can be rustless steel, plastic containers or glass container, search the leakage point of liquid propellant container, such as fluid path plug and gas circuit plug, leakage point is taked blocking or security measure stop a leak；
The oxidant that step 3.2.1.2 docks in receptacle carries out decontamination process, or places decontamination solution in receiving vessel in advance, forms oxidant waste liquid, collect in waste liquid pans after decontamination；Decontamination solution can be 0.5% sodium carbonate liquor or other decontamination solutions；
Step 3.2.1.3 rinses, with a large amount of water, the liquid propellant container speckling with oxidant and receives vessel surface, rinses the waste water produced and discharges to waste water system after dilution, it is prevented that flows into sewer；
Step 3.2.2 such as safety guarantee personnel are defined as tertiary risk fuel agent micro-leakage, carry out fuel agent leakage in accordance with the following steps and process,
Step 3.2.2.1 is used for collecting the fuel agent leaked out at liquid propellant container leakage position reception container placed below, receiving container can be rustless steel, plastic containers or glass container, search the leakage point of liquid propellant container, such as fluid path plug and gas circuit plug, leakage point is taked blocking or security measure stop a leak；
The a large amount of clear water of fuel agent that step 3.2.2.2 docks in receptacle rinse formation fuel agent waste liquid, collect in the waste liquid pans different from oxidant waste liquid；
Above-mentioned steps 3.2.2 fuel agent leakage treatment measures can also adopt sand directly to adsorb the fuel agent of leakage at the leakage point of liquid propellant container, then rinses sand with clear water and forms fuel agent waste liquid, collects in the waste liquid pans different from oxidant waste liquid；
Step 3.2.2.3 rinses, with a large amount of water, the liquid propellant container speckling with fuel agent and receives vessel surface, rinses the waste water produced and discharges to waste water system after dilution, it is prevented that flows into sewer；
Step 3.3 takes the measure such as decontamination, ventilation to make propellant gas concentration lower than 0.2ppm in hazardous area, then product is pulled down by product installation personnel from assay device, then proceeded decontamination by propellant safety guarantee personnel, ventilation operation is down to normal air, and namely portable gas detector cannot detect propellant gas concentration；
Step 4. propellant waste liquid and sewage disposal,
Step 3.2.1.2 and step 3.2.2.2 waste liquid are received step 4.1 the oxidant waste liquid in tank and fuel agent waste liquid decontaminant carries out decontamination process, then waste liquid is received tank and carry out state of the art confirmation, namely judge to confirm decontaminating effect according to propellant concentration, and check its air-tightness；Then waste liquid receives tank transport to propellant production unit；
A small amount of propellant waste liquid that step 4.2 is dropped in pilot region directly uses decontamination solution to process；Rinse the waste water produced to discharge to waste water system after dilution, it is prevented that flow into sewer.
Above-mentioned application example is only for illustrating technology design and the feature of the present invention; its object is to allow those skilled in the art will appreciate that present disclosure and to implement accordingly; can not limit the scope of the invention with this; all equivalences made according to spirit of the invention change or amendment, all should cover within protection scope of the present invention.
Claims (4)
1. a propellant leakage emergency processing method, it is characterised in that in turn include the following steps:
Step 1. liquid propellant risk of leakage classification, the principal risk of propellant containers dynamic environmental test is in that in dynamic environmental test dynamic stress is likely to cause the damage of propellant containers, causes that the liquid propellant in propellant containers leaks.Liquid propellant includes oxidant and fuel agent, liquid propellant leakage has three kinds of situations: a kind of be the fuel of liquid propellant and oxidant leaks simultaneously, self-ignition type propellant catches fire immediately after leaking simultaneously and mixing or explodes, meet incendiary source after nonflammable type propellant leakage mixing also to catch fire or explode, therefore this situation is called prime risk propellant leakage；Second is the fuel of liquid propellant or oxidant individually leaks in a large number, and fuel individually leaks chance incendiary source and can catch fire or explode, and oxidant individually leaks meets combustible and can catch fire or explode, and therefore this situation is called light breeze danger propellant leakage；The third is fuel or the independent micro-leakage of oxidant of liquid propellant, fuel individually leaks chance incendiary source and can catch fire or explode, oxidant individually leaks chance combustible and can catch fire or explode, and risk is less relative to light breeze danger, therefore this situation is called tertiary risk propellant leakage；
Step 2. determines whether there is liquid propellant leakage, in process of the test, test situation in Product Status and Factory Building is monitored by safety guarantee personnel safety zone inside by the video monitoring system in pilot region, when finding product exception, assay device should be closed immediately, wear protective garment and holohedral form canister respirator, wear protective gloves and carry in gas detector entrance pilot region and detect, judge whether propellant leakage
Step 2.1 is when the propellant gas concentration that gas detector detects is less than 0.5ppm and when not being visually observed liquid propellant micro-leakage, it is judged that for being absent from the situation of propellant leakage, safety guarantee personnel leave pilot region, proceed test；
Step 2.2 more than 0.5ppm and is judged as the situation that there is propellant micro-leakage when propellant gas concentration less than 5ppm or when being visually observed liquid propellant micro-leakage；When propellant gas concentration more than 5ppm or is visually observed when liquid propellant leaks in a large number and is judged as there is the situation that propellant leaks in a large number；
Step 3. takes emergency trouble shooting measures, when step 2 judges there is propellant leakage, safety guarantee personnel should cut off the power supply in pilot region immediately, then determine whether, the different situations of liquid propellant leakage in pilot region are determined according to step 1, take steps 3.1 respectively, the emergency trouble shooting measures of step 3.2 or step 3.3, eliminate burning or risk of explosion；
Step 3.1 is defined as prime risk and light breeze danger propellant leakage such as safety guarantee personnel, namely oxidant and fuel agent leak or oxidant and fuel agent are individually revealed in a large number simultaneously, the spraying system of fire fighting in pilot region should be opened immediately, simultaneously except safety guarantee personnel, pilot region and the full complement's emergency evacuation within the scope of periphery 150m thereof；
Step 3.2 is defined as tertiary risk propellant leakage such as safety guarantee personnel, i.e. oxidant or the independent micro-leakage of fuel agent, pilot region, the system pressure of removal assay device should be entered when wearing protective garment and holohedral form canister respirator, wearing protective gloves；
Step 3.2.1 such as safety guarantee personnel are defined as tertiary risk oxidant micro-leakage, carry out oxidant micro-leakage process in accordance with the following steps,
Step 3.2.1.1 is used for collecting, at liquid propellant container leakage position reception container placed below, the oxidant leaked out, and searches the leakage point of liquid propellant container, and leakage point is taked blocking or security measure stop a leak；
The oxidant that step 3.2.1.2 docks in receptacle carries out decontamination process, or places decontamination solution in receiving vessel in advance, collects in waste liquid pans；
Step 3.2.1.3 rinses, with a large amount of water, the liquid propellant container speckling with oxidant and receives vessel surface, rinses the waste water produced and discharges to waste water system after dilution, it is prevented that flows into sewer；
Step 3.2.2 such as safety guarantee personnel are defined as tertiary risk fuel agent micro-leakage, carry out fuel agent micro-leakage in accordance with the following steps and process,
Step 3.2.2.1 is used for collecting, at liquid propellant container leakage position reception container placed below, the fuel agent leaked out, and searches the leakage point of liquid propellant container, and leakage point is taked blocking or security measure stop a leak；
The a large amount of clear water of fuel agent that step 3.2.2.2 docks in receptacle rinse formation fuel agent waste liquid, collect in the waste liquid pans different from oxidant waste liquid；
Step 3.2.2.3 rinses, with a large amount of water, the liquid propellant container speckling with fuel agent and receives vessel surface, rinses the waste water produced and discharges to waste water system after dilution, it is prevented that flows into sewer；
Step 3.3 takes the measure such as decontamination, ventilation to make propellant gas concentration lower than 0.2ppm in hazardous area, and then product is pulled down by product installation personnel from assay device, is then proceeded decontamination by propellant safety guarantee personnel, ventilation operation is down to normally；
Step 4. propellant waste liquid and sewage disposal,
Step 3.2.1.2 and step 3.2.2.2 waste liquid are received step 4.1 the oxidant waste liquid in tank and fuel agent waste liquid decontaminant carries out decontamination process, then waste liquid is received tank and carries out state of the art confirmation, and checks its air-tightness；Then waste liquid receives tank transport to propellant production unit；
A small amount of propellant waste liquid that step 4.2 is dropped in pilot region directly uses decontamination solution to process；Rinse the waste water produced to discharge to waste water system after dilution, it is prevented that flow into sewer.
2. a kind of propellant leakage emergency processing method as claimed in claim 1, it is characterised in that: described is rustless steel, plastic containers or glass container by the reception container in step 3.2.1.1 and step 3.2.2.1.
3. a kind of propellant leakage emergency processing method as claimed in claim 2, it is characterised in that: described is plastic containers by the reception container in step 3.2.1.1 and step 3.2.2.1.
4. a kind of propellant leakage emergency processing method as claimed in claim 1, it is characterized in that: described step 3.2.2 fuel agent leakage treatment measures adopt sand directly to adsorb the fuel agent of leakage at the leakage point of liquid propellant container, then rinse sand with clear water and form fuel agent waste liquid, collect in the waste liquid pans different from oxidant waste liquid.
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| WO2012107597A2 (en) * | 2012-05-02 | 2012-08-16 | Wilco Ag | Method of detecting a propellant gas |
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Application publication date: 20160706 |