CN209043626U - Experimental system for cold BLEVE of high-pressure storage tank is induced in leakage - Google Patents
Experimental system for cold BLEVE of high-pressure storage tank is induced in leakage Download PDFInfo
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- CN209043626U CN209043626U CN201821489687.XU CN201821489687U CN209043626U CN 209043626 U CN209043626 U CN 209043626U CN 201821489687 U CN201821489687 U CN 201821489687U CN 209043626 U CN209043626 U CN 209043626U
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Abstract
The utility model discloses an experimental system for inducing high-pressure storage tank cold BLEVE by leakage, which comprises an experimental main body device consisting of a storage tank and a support below the storage tank, wherein the storage tank is respectively connected with a vacuumizing and water supplementing system, a monitoring system and a rupture disk; the data acquisition system is positioned outside the storage tank and is connected with the monitoring system through a lead, the vacuumizing and water supplementing system is connected with the control system through a lead, the system is adopted to carry out the test of the cold BLEVE rule of the leakage induction high-pressure storage tank, and the method is simple and effective. Beneficial effects do: the method can be used for researching the situation that overpressure is caused by cracks generated at different positions of the storage tank under the condition of mechanical striking, monitoring internal temperature and pressure changes, meeting the requirements of changing four variables of initial pressure, crack positions, liquid levels and sizes of cracks, researching the influence on BLEVE development under the condition of multi-factor coupling, judging the working condition when BLEVE overpressure is the most serious, and researching the evolution of BLEVE under the condition that secondary overpressure or mechanical striking action causes secondary cracks of the container.
Description
Technical field
The utility model relates to a kind of leakages to induce storage tank boiling liquid expanding vapor explosion effect test device.
Background technique
The reason of each type III pressure vessel explodes is varied, and wherein boiling liquid expanding vapor explosion causes storage tank explosion
(Boiling liquid expanding vapor explosion, BLEVE) phenomenon is most typical one kind in physical explosion.
Its essence occurred is exactly the high-pressure bottle of liquid phase coexisting state in fact, is produced due to external mechanical strike or heat radiation etc.
Raw breach, the pressure drop of transient state cause pot liquid to reach overheating limit and gasify rapidly, to keep inner material overheat quick-fried rapidly
Fried property is boiled, and the Overpressure of a large amount of steams and very kinetic energy two-phase fluid causes storage tank to explode in container.BLEVE has
It is greatly destructive, it is frequently accompanied by the shock wave for damaging container and container tearing to bits, and high-speed projectile container fragment pair
Building, facility and personnel cause serious injury in a certain range, or even cause second accident.Therefore, high pressure storage tank BLEVE is sent out
The basic technology problem of life reason and diaster prevention and control process is widely studied.
It is right that domestic and foreign scholars probe into pressure vessel internal parameters (such as initial pressure, liquid level, openings of sizes, thermally stratified layer)
The influence of BLEVE development process, but focus on the study on mechanism of single factors, lack to various factors coupling to storage tank
The analysis of BLEVE influence, and lacking causes storage tank different location breach to the shadow of BLEVE generating process mechanical strike effect
Ringing research and the secondary superpressure of BLEVE or mechanical strike effect leads to the Study on mechanism of the secondary breach of container.
Utility model content
Currently, the research about storage tank BLEVE pressure leak process is mostly to probe into liquid level, breach size, the degree of superheat, liquid phase point
Influence of the single factor tests such as depth to pressure leak process, in order to solve the above technical problems, the utility model provide one kind can be comprehensive
The system that the various factors couplings such as test storage tank breach size, initial pressure, liquid level, breach position influence BLEVE, it may be determined that make
At the situation of BLEVE consequence most serious, and storage tank different location in cold BLEVE accident can be studied and generate breach to BLEVE pressure release
The influence of process.Further, it is also possible to study the influence that secondary breach develops cold BLEVE, and the parameter for causing BLEVE can be faced
Measure the research of (critical liquid level, critical superheat) systematic quantification in boundary.
Leakage described in the utility model induces the experimental system of the cold BLEVE of high pressure storage tank, the technical solution used are as follows:
Including vacuumize with water charging system, subject device, rupture disk, monitoring system, control system and data collection system, it is described
Subject device includes storage tank and the bracket that is located at below the storage tank, described to vacuumize and water charging system, monitoring system, quick-fried
Fragmentation is connect with storage tank respectively；It is outer and connect monitoring system by conducting wire that data collection system is located at storage tank, it is described vacuumize and
Water charging system, blasting system, data collection system pass through conducting wire respectively and connect with the control system.
Preferably, the storage tank front side wall is equidistantly equipped with observation window from top to bottom, and the tank top offers circular hole, institute
It states and is covered with pressure-resistant glass on circular hole, LED light is equipped with above the glass, the LED light is connect by conducting wire with control system, institute
It states bottom in storage tank and is equipped with heating rod.
Preferably, described to vacuumize with water charging system include water ring vacuum pump, system water supplement mouth, automatically control plus water/and it is true
Empty valve, Trunk Line, vacuum tube and water inlet pipe, the water ring vacuum pump and system water supplement mouth are connected respectively vacuum tube and water inlet
Pipe, the tank top is equipped with single-phase moisturizing and vacuum valve port, emptying valve port, the emptying valve port connect safety by evacuated tube
Exhaust-valve, single-phase moisturizing and vacuum valve port are connect with Trunk Line, and the Trunk Line, vacuum tube and water inlet pipe three lead to by three
It connects, is separately installed with manual vacuum control valve and manual moisturizing control valve on the vacuum tube and water inlet pipe, on the Trunk Line
Automatic control plus water/vacuum valve are installed, described automatically control adds water/vacuum valve and safe exhaust-valve to pass through conducting wire and control respectively
System connection processed.
Preferably, it is respectively equipped with rupture disk mouth on the tank top and right side wall, the rupture disk mouth quantity is greater than two
A, wherein any one or any two rupture disk mouth are correspondingly connected with rupture disk；Rupture disk at most installs two, is equipped with multiple quick-fried
Fragmentation mouth can facilitate the position of adjustment explosion mouth, (have leakage in various factors coupling to study different leak positions to BLEVE influence
This factor of position).
Preferably, the monitoring system includes pressure transmitter and armoured thermocouple, on the top of the storage tank and side wall
It is respectively equipped with pressure transmitter mouth, each pressure transmitter mouth is connected respectively a pressure transmitter, the tank bottom
Be also provided with leakage fluid dram, thermocouple port and heating rod mouth, the armoured thermocouple and electrically heated rod be respectively positioned in storage tank and with heat
Galvanic couple mouth, heating rod mouth are correspondingly connected with, and the pressure transmitter, armoured thermocouple pass through conducting wire respectively and data collection system connects
It connects, the tank bottom is equipped with the excretory duct connecting with leakage fluid dram, and the excretory duct is equipped with auto Drain, the automatic row
Valve is let out to connect with control system.
The influence of various factors coupling (leak position, the initial degree of superheat, liquid level and breach size) to BLEVE is studied, is used
The method that above-mentioned experimental system is tested, test method, its step are as follows,
1) according to experiment needs, a breach position is selected, rupture disk is installed, the bore of rupture disk is selected according to experiment；
2) storage tank is vacuumized, and adds water to the required liquid level of experiment；
3) pressurized operation is carried out to storage tank, liquid in storage tank is made to reach the required pressurized state of experiment；
4) when burst pressure of the pressure close to rupture disk, data collection system and high-speed photography are opened, starts to acquire number
According to and shooting, container internal pressure automatically opened after reaching the burst pressure of rupture disk；
5) when the medium of breach stopping discharge medium or discharge is seldom, being considered as BLEVE process terminates, and closes number at this time
According to acquisition and high-speed photography；
6) container internal liquid is discharged；
7) power supply is closed；
8) data measured is adopted according to number and draws the curve that temperature, pressure changes over time, in conjunction with the picture of shooting, analyze number
According to；
9) rupture disk is unloaded, cock is installed.
Secondary superpressure is studied or when mechanical strike effect leads to the differentiation of BLEVE in the case of the secondary breach of container, in use
The method that experimental system is tested is stated, its step are as follows,
1) two breach positions that choice experiment needs, install rupture disk respectively, and two bursting pressure of bursting sheet are close；
2) storage tank vacuumize and add water；
3) pressurized operation is carried out to storage tank, liquid in storage tank is made to reach the required pressurized state of experiment；
4) it when burst pressure of the pressure close to burst pressure lower rupture disk, opens data collection system and high speed is taken the photograph
Shadow starts to acquire data and shooting, after container internal pressure reaches the burst pressure of the lower rupture disk of burst pressure, first
Rupture disk automatically opens, and due to the superpressure that BLEVE is generated, and then another rupture disk can also be opened in succession；
5) when the medium of breach stopping discharge medium or discharge is seldom, being considered as BLEVE process terminates, and closes number at this time
According to acquisition and high-speed photography；
6) container internal liquid is discharged；
7) power supply is closed；
8) data measured is adopted according to number and draws the curve that temperature, pressure changes over time, in conjunction with the picture of shooting, analyze number
According to；
9) rupture disk is unloaded, cock is installed.
It is described in the utility model to have the beneficial effect that
1, the present apparatus is mounted with many places rupture disk mouth, including gas phase and liquid phase part in the side wall of storage tank, can be with analog machine
Lead to the situation of superpressure under the situations such as tool strike in storage tank different location generation breach, and detectable internal temperature and pressure become
Change, compression system is realized by pumped vacuum systems and the heating of electrically heated rod interior contact, and thermal power 2.5kW adjusts vacuum degree
And heating time is to reach the required high pressure conditions of experiment；High-speed photography is located in laboratory, faces storage tank side wall glass, can
The variation of air entrapment and two-phase layer is observed, and can comprehensive analysis various factors coupling (liquid level, initial pressure, openings of sizes, opening
Position) influence to BLEVE；
2, in the storage of actual industrial storage tank, rupture disk or safety valve, the present apparatus can be installed on storage tank can be studied
Storage tank different location, which generates breach, influences superpressure, can also study since BLEVE superpressure or mechanical strike cause secondary breach
In the case of BLEVE development；
3, the present apparatus illuminates hole in container top center mounted LED lamp, illuminates inside container, more clearly to observe inside
The development of bubble and two-phase layer；
4, it devises and vacuumizes and moisturizing pneumatic control valve, He Jiashui is vacuumized by tee tube realization, to guarantee to test
There was only the gas-liquid binary states of water inside container in the process, be free of air, and intake (vacuumizing) mouth and water inlet (vacuumizing) Trunk Line
It is connected by vacuum clamp, ensure that leakproofness；
5, container top pressure transmitter and safe exhaust-valve linkage (control cabinet hand-held evacuation can also be passed through at any time), to prevent
Reservoir overpressure causes the accident.
Detailed description of the invention
In order to make the content of the utility model be easier to be clearly understood, below according to specific embodiment and combine attached
Figure, is described in further detail the utility model.
Fig. 1 is the utility model schematic view of the front view.
Fig. 2 is tank bottom structural schematic diagram.
Fig. 3 is tank top structural schematic diagram.
Fig. 4 is headlamp aperture schematic diagram.
Wherein: 1- storage tank, 10- empty valve port, 11- observation window, 12-LED lamp, the single-phase moisturizing of 13- and vacuum valve port, 14-
It automatically controls and adds water/vacuum valve, 15- Trunk Line, 16- rupture disk mouth, 17- heating rod mouth, 18- leakage fluid dram, 19- thermocouple port,
2- bracket, 20- electrically heated rod, 21- pressure transmitter mouth, 3- water ring vacuum pump, 31- vacuum tube, 32- manual vacuum control valve,
4- system water supplement mouth, 41- water inlet pipe, the manual moisturizing control valve of 42-, 5- rupture disk, 6- pressure transmitter, 7- armoured thermocouple,
8- excretory duct, 9- auto Drain.
Specific embodiment
As shown in Figs 1-4, leakage described in the utility model induces the experimental system of the cold BLEVE of high pressure storage tank, including takes out
Vacuum and water charging system, subject device, rupture disk, monitoring system, control system and data collection system, the experiment master
Body device includes the bracket 2 of storage tank 1 and installation thereunder；The storage tank 1 is size 150mm × 150mm × 772mm
The rectangular nonstandard storage tank of stainless steel, internal volume 17L, maximum pressure resistance 2.4MPa, 200 DEG C of heatproof；The front side wall of the storage tank 1 from
Up to it is lower equidistantly be equipped with observation window 11, by observation window can observe respectively container 20% ± 12%, 50% ± 12%, 80 ±
The variation of the air entrapment and two phase flow of 12% altitude range；The top of the storage tank 1 offers circular hole, is covered with pressure resistance on circular hole
Glass, pressure resistance glass top are equipped with LED light 12, and LED light can be illuminated inside container, more by control system control switch
The variation of air entrapment and two phase flow is clearly viewed.
It is described vacuumize with water charging system include water ring vacuum pump 3, system water supplement mouth 4, Trunk Line 15, vacuum tube 31, into
Water pipe 41, automatic control plus water/vacuum valve 14, the water ring vacuum pump 3 and system water supplement mouth 4 are connected respectively vacuum tube 31
With water inlet pipe 41, the top of the storage tank 1 is equipped with single-phase moisturizing and vacuum valve port 13, emptying valve port 10, single-phase moisturizing and vacuum
Valve port 13 is automatically controlled by the connection of Trunk Line 15 adds water/vacuum valve 14, and automatic control plus water/vacuum valve, which are both used as, to be vacuumized
Mouthful, and to be used as filler；The emptying valve port 10 connects safe exhaust-valve by evacuated tube, in this implementation, safe exhaust-valve
Water/vacuum valve is added to be overlapped with automatically controlling, therefore safe exhaust-valve is not shown in Fig. 1；The Trunk Line 15,31 and of vacuum tube
41 three of water inlet pipe is connected by threeway, is separately installed with 32 He of manual vacuum control valve on the vacuum tube 31 and water inlet pipe 41
Manual moisturizing control valve 42.
The blasting system includes 6 rupture disks 5, and the tank top and right side wall are respectively equipped with rupture disk mouth 16, often
A rupture disk mouth is correspondingly connected with a rupture disk, the rupture disk on side wall be separately mounted to storage tank 10%, 30%, 50%,
70% and 90% height will release automatically when container internal pressure reaches its design pressure value, and different breach sizes can be with
It is realized by customizing the rupture disk of different caliber sizes.
The monitoring system includes pressure transmitter 6 and armoured thermocouple 7, to monitor container internal pressure and temperature
Variation；Using HM90 type high-frequency pressure transmitter (surveying pressure range 0-2MPa), the top of the storage tank and side wall in the present embodiment
On be respectively equipped with 17,5 pressure transmitters of pressure transmitter mouth be respectively distributed to storage tank top and side wall 30%, 50%,
70%, at 90% height, to measure the pressure response inside the container in pressure leak process, and outside the cable of pressure transmitter
Portion is surrounded by insulation adhesive plaster, to prevent external high temperature from damaging to route；The bottom of the storage tank 1 be also provided with leakage fluid dram 18,
Thermocouple port 19 and heating rod mouth 17, electrically heated rod 20 are located at tank inside and connect with heating rod mouth 17, are by vacuumizing
System adjusts vacuum degree and heating time with the heating realization system pressurization of electrically heated rod interior contact, thermal power 2.5kW to reach
High pressure conditions needed for experiment；The K-type thermocouple bunchy of different length is inserted into from container bottom, for measuring different height medium
Temperature-responsive；The pressure transmitter, armoured thermocouple pass through conducting wire respectively and connect with the data collection system being located at outside storage tank
It connects；The tank bottom is equipped with the excretory duct 8 connecting with leakage fluid dram, and the excretory duct 8 is equipped with auto Drain 9.
Control system is for vacuumizing control plus water management, automatic safe emptying and dynamical system control；It vacuumizes and adds
The control of water system is as previously mentioned, automatic drain valve and the interlocking of top pressure transmitter, safe when pressure reaches a threshold value
Exhaust-valve automatically opens after receiving the signal that pressure transmitter is given, and when pressure returns to certain value, valve is re-closing off；Power
System includes air compressor machine, independently of storage tank outside, air compressor machine by tracheae be connected to each pneumatic ball valve (including automatically control plus
Water/vacuum valve, safe exhaust-valve, auto Drain), power is provided for each pneumatic ball valve, for the sake of clarity, in Fig. 1 not
Show air compressor machine；Control system control automatically control plus water/vacuum valve, exhaust-valve, bleed valve and headlamp, water ring vacuum pump,
The ON/OFF of air compressor machine.
Water inlet pipe passes through vacuum clamp with system water supplement mouth, evacuated tube and evacuation port, excretory duct and leakage fluid dram respectively and connects,
To guarantee to add the leakproofness of water, exhaust, draining, do not leak.
Embodiment 1
In the case of studying simple check mouth, various factors coupling (leak position, the initial degree of superheat, liquid level and breach size) is right
The influence of BLEVE carries out the operating method that leakage induces the cold BLEVE rule test of high pressure storage tank, and its step are as follows:
1) rupture disk is installed: according to experiment needs, selecting one of breach position, rupture disk, present apparatus explosion is installed
Piece clamper is connect with tank wall by screw thread mouth, and the bore of rupture disk is according to experiment demand customization, the rotation of remaining rupture disk mouth
Plug is blocked；2) it vacuumizes and adds water:
(1) air compressor machine switch is opened, control system controls air compressor machine and starts to work；
(2) vacuum control valve is opened manually, closes moisturizing control valve；
(3) opening to automatically control adds water/vacuum valve to carry out vacuum pumping；
(4) after to vacuum pumping, vacuum control valve is turned off manually, opening moisturizing control valve carries out plus water operation；
(5) after liquid level reaches and tests required liquid level, automatic control plus water/vacuum valve button is first closed, is turned off
Manual moisturizing control valve；
3) electrically heated rod is opened, liquid in storage tank is made to reach the required pressurized state of experiment；
4) when burst pressure of the pressure close to rupture disk, (frequency is set as 500 for opening data collection system and high-speed photography
Frame is per second), start to acquire data and shooting；Data collection system uses U.S.'s Agilent U2331A type multi-channel data acquisition mould
Block synchronous acquisition, sample rate may be up to single channel 3MSa/s, multichannel 1MSa/s, resolution ratio 12bit；High-speed motion picture camera
It is shot outside storage tank against positive windowpane；When pressure reaches bursting pressure of bursting sheet, rupture disk is automatically opened；
5) when the medium of breach stopping discharge medium or discharge is seldom, being considered as BLEVE process terminates, and closes number at this time
According to acquisition and high-speed photography；
6) it opens control cabinet and drains button automatically, the pneumatic ball valve of container bottom automatically opens, container internal liquid is discharged,
It is drained to container internal liquid, closes ball valve；
7) air compressor machine is closed, power supply is closed；
8) data measured is adopted according to number and draws the curve that temperature, pressure changes over time, in conjunction with the picture of shooting, analyze number
According to；
9) rupture disk is unloaded, cock is installed.
The present apparatus can be with the initial degree of superheat of comprehensive study medium (i.e. initial pressure), liquid level, breach size and aperture position
Influence to BLEVE judges each factor to the influence degree of BLEVE, and the case where lead to BLEVE superpressure most serious；By
More in the number of levels of each factor, the method that orthogonal experiment (pseudo level) can be used simplifies experiment；Due to the water of aperture position
Flat several and remaining 3 factor difference, so the level lacked is replaced with gas phase, and see Table 1 for details using pseudo level method, table 1 is real
Test factor and water-glass, the degree of superheat refers to the initial temperature of superheated water and the atmospheric boiling point of water before pressure releasing in table 1, i.e., with
100 DEG C of difference；Experimental record table is shown in Table 2, and table 2 is BLEVE pressure process Evolution record sheet under various factors coupling, table 2
Middle PmaxFor first pressure peak after pressure release, PiFor the primary blasting pressure of rupture disk setting, △ triseIt is that pressure rises
Time, △ Prise=Pmax-Pi, it is relative pressure rising value, 1 ' indicates the level 4 that missing is replaced with level 1.
Table 1
Table 2
Embodiment 2
Study secondary superpressure or when mechanical strike effect leads to the differentiation of BLEVE in the case of the secondary breach of container, operation
Method and step is as follows:
1) rupture disk is installed: choosing the rupture disk that two burst pressures are respectively a MPa and b MPa (a is slightly less than b), mouth
Diameter is 40mm, selects the breach position of 90% height and top, installs rupture disk, remaining rupture disk mouth is blocked with cock；
2) it vacuumizes and adds water:
(1) air compressor machine switch is opened, control system controls air compressor machine and starts to work；
(2) vacuum control valve is opened manually, closes moisturizing control valve；
(3) opening to automatically control adds water/vacuum valve to carry out vacuum pumping；
(4) after to vacuum pumping, vacuum control valve is turned off manually, opening moisturizing control valve carries out plus water operation；
(5) after liquid level reaches and tests required liquid level, automatic control plus water/vacuum valve button is first closed, is turned off
Manual moisturizing control valve；
3) electrically heated rod is opened, liquid in storage tank is made to reach the required pressurized state of experiment；
4) when burst pressure aMPa of the pressure close to rupture disk, (frequency is set for opening data collection system and high-speed photography
It is per second for 500 frames), start to acquire data and shooting；Data collection system uses U.S.'s Agilent U2331A type multi-channel data
Acquisition module synchronous acquisition, sample rate may be up to single channel 3MSa/s, multichannel 1MSa/s, resolution ratio 12bit；At a high speed
In being shot outside storage tank against positive windowpane, container internal pressure reaches the burst pressure (a of rupture disk for camera post
MPa it is automatically opened after), boils since pressure drop will lead to liquid superheat and generate superpressure, if superpressure is higher than b MPa, push up
The rupture disk in portion can also be opened；
5) when the medium of breach stopping discharge medium or discharge is seldom, being considered as BLEVE process terminates, and closes number at this time
According to acquisition and high-speed photography；
6) it opens control cabinet and drains button automatically, the pneumatic ball valve of container bottom automatically opens, container internal liquid is discharged,
It is drained to container internal liquid, closes ball valve；
7) air compressor machine is closed, power supply is closed；
8) data measured is adopted according to number and draws the curve that temperature, pressure changes over time, in conjunction with the picture of shooting, analyze number
According to；
9) rupture disk is unloaded, cock is installed.
In the storage of actual industrial storage tank, rupture disk or safety valve can be installed on storage tank, first strike results in
The generation of BLEVE, if which forms secondary since the internal BLEVE superpressure caused causes rupture disk or safety valve to be opened
Breach, i.e., since machinery strike results in secondary breach.The present apparatus can also study BLEVE superpressure cause secondary breach (or
That fragment two-hit leads to secondary breach) in the case where BLEVE development.
As attached drawing 1 selects top and height is the rupture disk at 90%, remaining several place when liquid level is 50% in container
Rupture disk is blocked with cock, slightly lower at the setting pressure ratio top of rupture disk at 90%；When heating causes internal pressure to reach
At 90% after the setting pressure of rupture disk, rupture disk moment is opened, if selection primary blasting pressure and rupture disk mouth bore are enough
Greatly, then inside can generate the superpressure value higher than primary blasting pressure, and the rupture disk at top can be opened at this time, be seen by high-speed photography
Examine the variation of the process internal bubble, two-phase layer and pressure.
The present apparatus, which can be studied, leads to the situation of superpressure, prison in storage tank different location generation breach under mechanical strike situation
Internal temperature and pressure change are surveyed, and can satisfy the change degree of superheat, breach position, liquid level and breach size and (pass through installation
The rupture disks of different bores is realized) these variables, the influence in the case of various factors coupling to the development of BLEVE is studied, and sentence
It is disconnected to cause the operating condition of BLEVE superpressure even in the worst case.
By changing the initial pressure of liquid level and superheated water gas phase, probe into the critical liquid level that can cause BLEVE superpressure and
Critical superheat, while the setting of container many places rupture disk can study influence of the secondary breach to BLEVE development process, take the photograph at a high speed
Variation of the shadow through windowpane observable air entrapment and two-phase layer.
The foregoing is merely the preferred embodiment of the utility model, it is not intended as further limiting the utility model, it is all
Be various equivalence changes made based on the specification and figures of the utility model the protection scope of the utility model it
It is interior.
Claims (5)
1. the experimental system that leakage induces the cold BLEVE of high pressure storage tank, which is characterized in that including vacuumizing and water charging system, experiment
Agent set, rupture disk, monitoring system, control system and data collection system, the subject device include storage tank and set
Bracket below the storage tank, described vacuumize connect with storage tank respectively with water charging system, monitoring system, rupture disk；Data
It is outer and by conducting wire connection monitoring system that acquisition system is located at storage tank, it is described vacuumize with water charging system connect by conducting wire described in
Control system.
2. the experimental system that leakage according to claim 1 induces the cold BLEVE of high pressure storage tank, which is characterized in that the storage
Tank front side wall is equidistantly equipped with observation window from top to bottom, and the tank top offers circular hole, pressure-resistant glass is covered on the circular hole,
LED light is equipped with above the glass, the LED light is connect by conducting wire with control system, and bottom is equipped with heating in the storage tank
Stick.
3. the experimental system that leakage according to claim 1 induces the cold BLEVE of high pressure storage tank, which is characterized in that the pumping
Vacuum and water charging system include water ring vacuum pump, system water supplement mouth, automatically control plus water/vacuum valve, Trunk Line, vacuum tube and into
Water pipe, the water ring vacuum pump and system water supplement mouth are connected respectively vacuum tube and water inlet pipe, and the tank top is equipped with single
Phase moisturizing and vacuum valve port, emptying valve port, the emptying valve port connect safe exhaust-valve, single-phase moisturizing and vacuum by evacuated tube
Valve port is connect with Trunk Line, and the Trunk Line, vacuum tube and water inlet pipe three are connected by threeway, the vacuum tube and water inlet pipe
On be separately installed with manual vacuum control valve and manual moisturizing control valve, automatic control plus water/true are installed on the Trunk Line
Empty valve, described automatically control add water/vacuum valve and safe exhaust-valve to pass through conducting wire respectively and connect with control system.
4. the experimental system that leakage according to claim 1 induces the cold BLEVE of high pressure storage tank, which is characterized in that the storage
Be respectively equipped with rupture disk mouth on tank top and right side wall, the rupture disk mouth quantity is greater than two, wherein any one or it is any
Two rupture disk mouths are correspondingly connected with rupture disk, remaining rupture disk mouth is blocked with cock.
5. the experimental system that leakage according to claim 1 induces the cold BLEVE of high pressure storage tank, which is characterized in that the prison
Examining system includes pressure transmitter and armoured thermocouple, is respectively equipped with pressure transmitter mouth on the top of the storage tank and side wall,
Each pressure transmitter mouth is connected respectively a pressure transmitter, the tank bottom be equipped with leakage fluid dram, thermocouple port and
Heating rod mouth, the armoured thermocouple and electrically heated rod are respectively positioned in storage tank and are correspondingly connected with thermocouple port, heating rod mouth, institute
It states pressure transmitter, armoured thermocouple and passes through conducting wire respectively and connect with data collection system, the tank bottom is equipped with and drain
The excretory duct of mouth connection, the excretory duct are equipped with auto Drain, and the auto Drain is connect with control system.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060399A (en) * | 2018-09-12 | 2018-12-21 | 南京工业大学 | Experimental system and testing method for leakage-induced high-pressure storage tank cold B L EVE |
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2018
- 2018-09-12 CN CN201821489687.XU patent/CN209043626U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060399A (en) * | 2018-09-12 | 2018-12-21 | 南京工业大学 | Experimental system and testing method for leakage-induced high-pressure storage tank cold B L EVE |
| CN109060399B (en) * | 2018-09-12 | 2024-03-01 | 南京工业大学 | Experimental system and method for inducing cold BLEVE of high-pressure storage tank by leakage |
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