CN109827996A - Sewage network flammable gas explosion communication process test device and method - Google Patents
Sewage network flammable gas explosion communication process test device and method Download PDFInfo
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- CN109827996A CN109827996A CN201910232793.2A CN201910232793A CN109827996A CN 109827996 A CN109827996 A CN 109827996A CN 201910232793 A CN201910232793 A CN 201910232793A CN 109827996 A CN109827996 A CN 109827996A
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Abstract
The invention discloses a kind of sewage network flammable gas explosion communication process test device and methods, including vertical pipeline system and horizontal pipe system, spark lever is installed in the side of vertical pipeline, and the other side installs a pair of of pressure/temperature sensor, installs venting of dust explosion piece/blind plate at the top of vertical pipeline；Horizontal pipe and vertical pipeline collectively form a closed restricted clearance, install a pair of of pressure/temperature sensor respectively in every section of horizontal pipe top center；Vertical pipeline material is transparent explosion-proof glass, and horizontal pipe installs circular non-opaque form, and the outside for corresponding to transparent explosion-proof glass and circular non-opaque form position is equipped with high-speed camera；Horizontal pipe is connected with pressure gauge, water filling port/dewatering outlet, vacuum pump and fuel gas gas cylinder.Can simulation of real scenes carry out sewage network gas burst experiment, including Vertical Well vented explosion tests and the non-vented explosion tests of Vertical Well, and be able to achieve the process monitoring of blast pressure, temperature and flame.
Description
Technical field
The present invention relates to a kind of municipal sewage pipe network flammable gas explosion measuring technologies more particularly to a kind of sewage network can
Combustion gas body detonation propagation procedural test device and method.
Background technique
Gas burst research is particularly important in safety engineering field, wherein carrying out gas for urban public infrastructure
The researchs such as risk of explosion assessment, security protection are gradually taken seriously.Flammable gas explosion is the heat studied in restricted clearance at present
Point, municipal sewage pipe network as typical restricted clearance, however at present in it flammable gas explosion disaster variation evolutionary process,
Diaster prevention and control technology etc. studies relative deficiency, and municipal sewage pipe network flammable gas explosion accident occurs often in recent years, right
Public's personal safety affects greatly.
In the prior art, researcher has carried out different scale, without flammable gas explosion process in pipeline under water storage condition
Research.
However, municipal sewage pipe network is a complicated pipe-line system by Vertical Well and horizontal well construction, and in pipeline
There are water storages, and when blast pressure reaches a certain level, Vertical Well well lid will fly out under surge effect, at this time well lid phase
When in a venting of dust explosion face.The conditions such as presence, water storage situation, the Vertical Well of different scale and the horizontal well of well lid (venting of dust explosion face) with
There are fundamental differences for pipeline into research, and true there has been no relatively meeting for flammable gas explosion in municipal sewage pipe network
The test device and method of scene constrain flammable gas explosion communication process in municipal sewage pipe network, cause calamity mechanism and safety
The development of protection etc. research work.
Summary of the invention
The object of the present invention is to provide a kind of sewage network flammable gas explosion communication process test device and methods.
The purpose of the present invention is what is be achieved through the following technical solutions:
Sewage network flammable gas explosion communication process test device of the invention, including vertical pipeline system and horizontal tube
Road system, the vertical pipeline system includes vertical pipeline, and spark lever, other side installation one are installed in the side of the vertical pipeline
To pressure/temperature sensor, when carrying out vented explosion tests, venting of dust explosion piece is installed at the top of the vertical pipeline, when carrying out non-vented explosion tests,
Blind plate is installed at the top of the vertical pipeline；
The horizontal pipe system includes multistage horizontal pipe, multistage horizontal pipe and vertical pipeline collectively form one it is close
Restricted clearance is closed, a pair of of pressure/temperature sensor is installed respectively in every section of horizontal pipe top center；
The vertical pipeline material is transparent explosion-proof glass, and the horizontal pipe is steel material, and in every section of horizontal tube
Circular non-opaque form, the outside of corresponding transparent explosion-proof glass and circular non-opaque form position are installed in center respectively immediately ahead of road
Equipped with high-speed camera；
Pressure gauge is installed in the top left side of first segment horizontal pipe, bottom left is equipped with water filling port/dewatering outlet,
It is connect respectively with vacuum pump and fuel gas gas cylinder at the top of final stage horizontal pipe by valve one and valve two.
Above-mentioned sewage network flammable gas explosion communication process test device carries out sewage network flammable gas explosion biography
The method for broadcasting procedural test carries out vertical pipeline venting of dust explosion/non-vented explosion tests, and primary complete testing procedure is as follows:
A, test device installation and debugging: vertical pipeline system is mounted and connected, horizontal pipe system, water system, matches
Gas system, Iganition control system, data collection system wherein install venting of dust explosion piece at the top of vertical pipeline 1 when vented explosion tests, non-to let out
Blind plate is installed at the top of vertical pipeline when quick-fried experiment, each section is debugged, it is ensured that seal for pipe joints is good and guarantees each system
It can operate normally；
B, fill the water in pipeline: the water in water tank is injected into pipeline by Open valve three by water filling port/dewatering outlet, is led to
It crosses transparent explosion-proof glass at observation vertical pipeline and determines water injection rate, valve three is closed when reaching predetermined water injection rate and stops water filling；
C, vacuumize in pipeline: Open valve one starts vacuum pump, vacuumizes to pipe-line system, pass through pressure gauge
Manifold pressure variation is observed, stop vacuum pump when reaching setting pressure and closes valve one, vacuumizes end；
D, distribution in pipeline: the gas in fuel gas gas cylinder is filled in pipeline by Open valve two based on partial pressure method, is led to
Manifold pressure variation is apparently examined in excess pressure, closes valve two when a predetermined pressure has been reached, and pipeline is stood a period of time, is guaranteed
Fuel gas is sufficiently mixed with air in pipeline, and is evenly distributed in pipeline；
E, it lights a fire: by Computer controlled ignition system, certain ignition energy, ignition delay time being set, make to light a fire
Bar electrion generates electric spark, lights the fuel gas in pipeline；
F, data acquire: after igniting, passing through computer, pressure and temp acquisition system, seven pairs of pressure/temperature sensor acquisitions
Blast pressure and temperature data in each segment pipe acquire explosive flame by high-speed camera, computer, flame acquisition system
Data when transparent explosion-proof glass at circular non-opaque form and vertical pipeline are traveled to, and the data of acquisition are saved in calculating
Machine；
G, power supply and test macro are closed；
H, pipeline discharges water: Open valve three, and water storage emptying will be remained in pipeline after explosion；
I, data are analyzed: the blast pressure of computer record, temperature, flame data are arranged and analyzed.
As seen from the above technical solution provided by the invention, sewage network fuel gas provided in an embodiment of the present invention
Detonation propagation procedural test device and method, can simulation of real scenes carry out sewage network gas burst experiment, including it is vertical
Well vented explosion tests and the non-vented explosion tests of Vertical Well, and it is able to achieve the process monitoring of blast pressure, temperature and flame.
Detailed description of the invention
Fig. 1 is sewage network flammable gas explosion communication process test device structural representation provided in an embodiment of the present invention
Figure.
In figure:
1- vertical pipeline；2- blind plate/venting of dust explosion piece；3- spark lever；4- pressure/temperature sensor one；5- high-speed camera；6-
First segment horizontal pipe；7- second segment horizontal pipe；8- third section horizontal pipe；The 4th section of horizontal pipe of 9-；The 5th Duan Shui of 10-
Flat pipeline；The 6th section of horizontal pipe of 11-；12- pressure/temperature sensor two；13- pressure/temperature sensor three；14- pressure/temperature
Spend sensor four；15- pressure/temperature sensor five；16- pressure/temperature sensor six；17- pressure/temperature sensor seven；18,
19,20,21,22,23- circular non-opaque form；24- pressure gauge；25- water filling port/dewatering outlet；26- valve one；27- vacuum pump；
28- valve two；29- fuel gas gas cylinder；30- valve three；31- water tank；32- ignition system；33- computer；34,35- pressure
Temperature acquisition system；36- flame acquisition system.
Specific embodiment
The embodiment of the present invention will be described in further detail below.What is be not described in detail in the embodiment of the present invention is interior
Appearance belongs to the prior art well known to professional and technical personnel in the field.
Sewage network flammable gas explosion communication process test device of the invention and method, preferable specific embodiment party
Formula is:
Sewage network flammable gas explosion communication process test device includes vertical pipeline system and horizontal pipe system, institute
Stating vertical pipeline system includes vertical pipeline, and spark lever is installed in the side of the vertical pipeline, and a pair of of pressure/temperature is installed in the other side
Sensor is spent, when carrying out vented explosion tests, venting of dust explosion piece is installed at the top of the vertical pipeline, it is described vertical when carrying out non-vented explosion tests
Blind plate is installed at the top of pipeline；
The horizontal pipe system includes multistage horizontal pipe, multistage horizontal pipe and vertical pipeline collectively form one it is close
Restricted clearance is closed, a pair of of pressure/temperature sensor is installed respectively in every section of horizontal pipe top center；
The vertical pipeline material is transparent explosion-proof glass, and the horizontal pipe is steel material, and in every section of horizontal tube
Circular non-opaque form, the outside of corresponding transparent explosion-proof glass and circular non-opaque form position are installed in center respectively immediately ahead of road
Equipped with high-speed camera；
Pressure gauge is installed in the top left side of first segment horizontal pipe, bottom left is equipped with water filling port/dewatering outlet,
It is connect respectively with vacuum pump and fuel gas gas cylinder at the top of final stage horizontal pipe by valve one and valve two.
Water filling port/the dewatering outlet is connect by valve three with water tank.
The spark lever is connect with ignition system, and the pressure/temperature sensor is connect with pressure and temp acquisition system, institute
High-speed camera is stated to connect with flame acquisition system.
The pressure and temp acquisition system, flame acquisition system and ignition system are connect with computer respectively.
Above-mentioned sewage network flammable gas explosion communication process test device carries out sewage network flammable gas explosion biography
The method for broadcasting procedural test, which is characterized in that carry out vertical pipeline venting of dust explosion/non-vented explosion tests, primary complete testing procedure is such as
Under:
A, test device installation and debugging: vertical pipeline system is mounted and connected, horizontal pipe system, water system, matches
Gas system, Iganition control system, data collection system wherein install venting of dust explosion piece at the top of vertical pipeline 1 when vented explosion tests, non-to let out
Blind plate is installed at the top of vertical pipeline when quick-fried experiment, each section is debugged, it is ensured that seal for pipe joints is good and guarantees each system
It can operate normally；
B, fill the water in pipeline: the water in water tank is injected into pipeline by Open valve three by water filling port/dewatering outlet, is led to
It crosses transparent explosion-proof glass at observation vertical pipeline and determines water injection rate, valve three is closed when reaching predetermined water injection rate and stops water filling；
C, vacuumize in pipeline: Open valve one starts vacuum pump, vacuumizes to pipe-line system, pass through pressure gauge
Manifold pressure variation is observed, stop vacuum pump when reaching setting pressure and closes valve one, vacuumizes end；
D, distribution in pipeline: the gas in fuel gas gas cylinder is filled in pipeline by Open valve two based on partial pressure method, is led to
Manifold pressure variation is apparently examined in excess pressure, closes valve two when a predetermined pressure has been reached, and pipeline is stood a period of time, is guaranteed
Fuel gas is sufficiently mixed with air in pipeline, and is evenly distributed in pipeline；
E, it lights a fire: by Computer controlled ignition system, certain ignition energy, ignition delay time being set, make to light a fire
Bar electrion generates electric spark, lights the fuel gas in pipeline；
F, data acquire: after igniting, passing through computer, pressure and temp acquisition system, seven pairs of pressure/temperature sensor acquisitions
Blast pressure and temperature data in each segment pipe acquire explosive flame by high-speed camera, computer, flame acquisition system
Data when transparent explosion-proof glass at circular non-opaque form and vertical pipeline are traveled to, and the data of acquisition are saved in calculating
Machine；
G, power supply and test macro are closed；
H, pipeline discharges water: Open valve three, and water storage emptying will be remained in pipeline after explosion；
I, data are analyzed: the blast pressure of computer record, temperature, flame data are arranged and analyzed.
Sewage network flammable gas explosion communication process test device of the invention and method, can simulation of real scenes open
Open up sewage network gas burst experiment, including Vertical Well vented explosion tests and the non-vented explosion tests of Vertical Well, and be able to achieve blast pressure,
The process monitoring of temperature and flame.
Specific embodiment:
Sewage network flammable gas explosion communication process test device schematic diagram is as shown in Figure 1.The test device is by vertical
Pipe-line system, horizontal pipe system, water system, air distribution system, Iganition control system, six part of data collection system are constituted.
Wherein vertical pipeline system is made of vertical pipeline 1 and blind plate/venting of dust explosion piece 2, when carrying out vented explosion tests, vertical pipeline
Venting of dust explosion piece is installed at 1 top, when carrying out non-vented explosion tests, blind plate is installed at the top of vertical pipeline 1, in vented explosion tests, when in pipeline
When pressure reaches predetermined cracking pressure, venting of dust explosion occurs for the rupture of venting of dust explosion piece.Spark lever 3 is installed on the left of vertical pipeline 1, for lighting
Fuel gas in pipeline installs a pair of of pressure/temperature sensor 1, for measuring pressure of exploding in pipeline on the right side of vertical pipeline 1
Power and temperature.Vertical pipeline material is transparent explosion-proof glass, cannot be only used for water storage content in observation pipeline, and can be used for height
Fast video camera 5 shoots explosive flame.Pipeline section is circle, a diameter of 0.15m.
Horizontal pipe system include six sections of horizontal pipes (6,7,8,9,10,11), with vertical pipeline 1 collectively form one it is close
Restricted clearance is closed, four sections of horizontal pipe (6,7,10,11) length are 0.5m, and two sections of horizontal pipe (8,9) length are 1m, pipe
Road section is circle, and a diameter of 0.15m installs six pairs of Pressure/Temperatures in every section of horizontal pipe top center respectively and passes
Sensor (12,13,14,15,16,17), for measuring blast pressure and temperature in horizontal pipe.Horizontal pipe is steel material
Material, and six circular non-opaque forms (18,19,20,21,22,23) are installed in center respectively immediately ahead of every segment pipe, it is straight
Diameter is 2.5cm, shoots explosive flame for high-speed camera 5.Pressure is installed in the top left side of first segment horizontal pipe 6
Table 24, the pressure change for vacuumizing with being observed in pipeline when distribution, is equipped with note in 6 bottom left of first segment horizontal pipe
The mouth of a river/dewatering outlet 25 is equipped with valve 1 at the top of the 6th section of horizontal pipe 11 for injection/emptying water storage in pipeline, uses
In control vacuum pump 27 vacuumizes, valve 2 28 is for controlling 29 air inlet of fuel gas gas cylinder.
Water system is made of valve 3 30, water tank 31 and water filling port/dewatering outlet 25, passes through 3 30 controlled level pipe of valve
Reservoir storage in road.
Air distribution system is made of pressure gauge 24, valve 1, vacuum pump 27, valve 2 28, fuel gas gas cylinder 29, distribution
When vacuumized by vacuum pump 27, by valve 1 control pipeline in initial pressure, based on partial pressure method by valve 2 28 control
The air inflow of fuel gas gas cylinder 29 makes 24 numerical value of pressure gauge reach scheduled pressure value.
Iganition control system is made of spark lever 3, ignition system 32, computer 33, is punctured by 3 electrion of spark lever
Air generates spark and lights the fuel gas in pipeline.
Data collection system is by seven pairs of pressure/temperature sensors (4,12,13,14,15,16,17), high-speed camera 5, meter
Calculation machine 33, pressure and temp acquisition system (34,35), flame acquisition system 36 are constituted.Wherein pass through seven pairs of pressure/temperature sensors
(4,12,13,14,15,16,17), computer 33, pressure and temp acquisition system (34,35) acquire pipeline in blast pressure and
Temperature data；Acquiring explosive flame by high-speed camera 5, computer 33, flame acquisition system 36, to travel to six circles saturating
Data at photopic vision window (18,19,20,21,22,23) and vertical pipeline 1 when transparent explosion-proof glass.
Test method and step:
By sewage network flammable gas explosion communication process test device, it is real that vertical pipeline venting of dust explosion/non-venting of dust explosion can be carried out
It tests, primary complete testing procedure is as follows:
1, test device installation and debugging.Vertical pipeline system is mounted and connected, horizontal pipe system, water system, matches
Gas system, Iganition control system, data collection system wherein install venting of dust explosion piece at the top of vertical pipeline 1 when vented explosion tests, non-to let out
Blind plate is installed at the top of vertical pipeline 1 when quick-fried experiment, each section is debugged, it is ensured that seal for pipe joints is good and guarantees each system
It can operate normally.
2, water filling in pipeline.Water in water tank 31 is injected into pipeline by water filling port/dewatering outlet 25 by Open valve 3 30
It is interior, water injection rate is determined by transparent explosion-proof glass at observation vertical pipeline 1, valve 3 30 is closed when reaching predetermined water injection rate and is stopped
Only fill the water.
3, it is vacuumized in pipeline.Open valve 1 starts vacuum pump 27, vacuumizes to pipe-line system, pass through pressure
Power table 24 observes manifold pressure variation, stops vacuum pump 27 when reaching setting pressure and closes valve 1, vacuumizes knot
Beam.
4, distribution in pipeline.Gas in fuel gas gas cylinder 29 is filled with pipeline based on partial pressure method by Open valve 2 28
It is interior, manifold pressure variation is observed by pressure gauge 24, closes valve 2 28 when a predetermined pressure has been reached, pipeline is stood one section
Time guarantees that fuel gas is sufficiently mixed with air in pipeline, and is evenly distributed in pipeline.
5, it lights a fire.Ignition system 32 is controlled by computer 33, certain ignition energy, ignition delay time are set, made
3 electrion of spark lever generates electric spark, lights the fuel gas in pipeline.
6, data acquire.After igniting, pass through computer 33, pressure and temp acquisition system (34,35), seven pairs of Pressure/Temperatures
Sensor (4,12,13,14,15,16,17) acquires the blast pressure and temperature data in each segment pipe, passes through high-speed camera
5, computer 33, flame acquisition system 36 acquire explosive flame travel to six circular non-opaque forms (18,19,20,21,22,
23) and the data at vertical pipeline 1 when transparent explosion-proof glass, and the data of acquisition are saved in computer 33.
7, power supply and test macro are closed.
8, pipeline discharges water.Open valve 3 30 will remain water storage emptying in pipeline after explosion.
9, data are analyzed.The blast pressure of the record of computer 33, temperature, flame data are arranged and analyzed.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Within the technical scope of the present disclosure, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.
Claims (5)
1. a kind of sewage network flammable gas explosion communication process test device, which is characterized in that including vertical pipeline system and
Horizontal pipe system, the vertical pipeline system includes vertical pipeline, and spark lever, the other side are installed in the side of the vertical pipeline
A pair of of pressure/temperature sensor is installed, when carrying out vented explosion tests, venting of dust explosion piece is installed at the top of the vertical pipeline, carries out non-venting of dust explosion
When experiment, blind plate is installed at the top of the vertical pipeline；
The horizontal pipe system includes multistage horizontal pipe, multistage horizontal pipe and vertical pipeline collectively form one it is closed by
Space is limited, a pair of of pressure/temperature sensor is installed respectively in every section of horizontal pipe top center；
The vertical pipeline material be transparent explosion-proof glass, the horizontal pipe be steel material, and every section of horizontal pipe just
Circular non-opaque form is installed in front center respectively, and the outside for corresponding to transparent explosion-proof glass and circular non-opaque form position is equipped with
High-speed camera；
Pressure gauge is installed in the top left side of first segment horizontal pipe, bottom left is equipped with water filling port/dewatering outlet, last
It is connect respectively with vacuum pump and fuel gas gas cylinder at the top of one section of horizontal pipe by valve one and valve two.
2. sewage network flammable gas explosion communication process test device according to claim 1, which is characterized in that described
Water filling port/dewatering outlet is connect by valve three with water tank.
3. sewage network flammable gas explosion communication process test device according to claim 2, which is characterized in that described
Spark lever is connect with ignition system, and the pressure/temperature sensor is connect with pressure and temp acquisition system, the high-speed camera
It is connect with flame acquisition system.
4. sewage network flammable gas explosion communication process test device according to claim 3, which is characterized in that described
Pressure and temp acquisition system, flame acquisition system and ignition system are connect with computer respectively.
5. a kind of described in any item sewage network flammable gas explosion communication process test devices of Claims 1-4 carry out dirty
The method of pipe network flammable gas explosion communication process test, which is characterized in that carry out vertical pipeline venting of dust explosion/non-vented explosion tests,
Primary complete testing procedure is as follows:
A, vertical pipeline system, horizontal pipe system, water system, distribution system test device installation and debugging: is mounted and connected
System, Iganition control system, data collection system, wherein install venting of dust explosion piece at the top of vertical pipeline 1 when vented explosion tests, non-venting of dust explosion is real
Blind plate is installed at the top of vertical pipeline when testing, each section is debugged, it is ensured that seal for pipe joints is good and guarantees that each system can
It operates normally；
B, fill the water in pipeline: the water in water tank is injected into pipeline by water filling port/dewatering outlet, passes through sight by Open valve three
It examines transparent explosion-proof glass at vertical pipeline and determines water injection rate, valve three is closed when reaching predetermined water injection rate and stops water filling；
C, vacuumize in pipeline: Open valve one starts vacuum pump, vacuumizes to pipe-line system, observed by pressure gauge
Manifold pressure variation stops vacuum pump when reaching setting pressure and closes valve one, vacuumizes end；
D, distribution in pipeline: the gas in fuel gas gas cylinder is filled in pipeline based on partial pressure method, passes through pressure by Open valve two
Power apparently examines manifold pressure variation, closes valve two when a predetermined pressure has been reached, and pipeline is stood a period of time, is guaranteed flammable
Gas is sufficiently mixed with air in pipeline, and is evenly distributed in pipeline；
E, it lights a fire: by Computer controlled ignition system, certain ignition energy, ignition delay time being set, make spark lever height
It presses electricity and generates electric spark, light the fuel gas in pipeline；
F, data acquire: after igniting, acquiring each section by computer, pressure and temp acquisition system, seven pairs of pressure/temperature sensors
Blast pressure and temperature data in pipeline are acquired explosive flame and are propagated by high-speed camera, computer, flame acquisition system
Data at circular non-opaque form and vertical pipeline when transparent explosion-proof glass, and the data of acquisition are saved in computer；
G, power supply and test macro are closed；
H, pipeline discharges water: Open valve three, and water storage emptying will be remained in pipeline after explosion；
I, data are analyzed: the blast pressure of computer record, temperature, flame data are arranged and analyzed.
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