CN114994128A - Comprehensive multiphase explosion and detonation test device for pipeline - Google Patents

Abstract

The invention provides a comprehensive multiphase explosion and detonation testing device for a pipeline, which comprises a movable support, a phi 219 container pipeline, a multi-point direct-injection type dust cloud spraying system, a multi-point loop type liquid mist spraying system, a sensor, ignition equipment, a first pipeline, a second pipeline, safety equipment, a multi-gas internal circulation gas mixing pipeline and an observation window. The pipeline of the explosive container adopts a phi 219-shaped pipeline made of stainless steel S30408, the design pressure of the phi 219 pipeline is 10Mpa, the explosion transient impact limit pressure is 10Mpa, the manufacturing inspection hydraulic test pressure is 12.5Mpa, safety equipment of a pressure relief rupture disk is mounted on the phi 219 pipeline, the setting pressure of the rupture disk is 10Mpa, the explosion impact pressure of the phi 219 pipeline exceeds 10Mpa, the rupture disk automatically ruptures and releases pressure, potential safety hazards caused by the explosion impact pressure exceeding 10Mpa are eliminated, safety accidents in the explosion test process are avoided, safety of testers is guaranteed, and the product has safety and reliability.

Description

Comprehensive multiphase explosion and detonation test device for pipeline

Technical Field

The invention relates to the technical field of devices and equipment for testing dust, combustible liquid, liquid fog, combustible gas explosion and detonation in a container pipeline, in particular to a comprehensive multiphase explosion and detonation testing device for a pipeline.

Background

At present, single-phase or two-phase explosion and detonation test tests are carried out by researching explosion and detonation test equipment for dust, combustible liquid, liquid mist and combustible gas in a single fixed unchanged device equipment technical mode.

However, the existing device has the following defects:

as the explosion container pipeline is generally designed, manufactured and inspected without referring to the standard of pressure container, the safety and reliability of the equipment explosion test cannot be guaranteed. The surface of the inner wall of the pipeline is not precisely polished, the surface roughness of the inner wall seriously causes the explosive compound to be hard and stick to the wall, the dust is seriously deposited as black ash, and the vacuumizing and explosion effects are greatly influenced. The dust is simply placed in a container pipeline, and a dust raising method for raising the dust by using a simple gas dust blowing pipe is used for carrying out an explosion test, so that the test result is poor. A circular window is commonly used in the window of the existing pipeline observation sight glass, the general visual range is phi 30mm, the visual range is only local visual and small, and the rapid shooting capture and the optical test of the transient motion change of the explosion flame are influenced. At present, a gas mixing tank is generally adopted to carry out a gas mixing method for various gases, the various gases are input into the gas mixing tank to be automatically combined with gas mixing and then supplied to an explosion container for explosion test, and the gas mixing method has the problem of unbalanced mixing of the various gases. The equipment base is generally used with the ground to fixed an organic whole to current container pipeline base, accomplish hardly to dismantle the novel explosion test mode of adjustment recombination once more, it carries out the detonation shock wave test hardly to install the clamp membrane in the middle of two test sections, it also hardly clears up dust explosion black ash and glues the hard explosive compound of wall to open pipeline flange, unclean leads to the unable normal use of pipeline inner loop gas mixing system in the pipeline, also influence the explosion test effect seriously simultaneously, therefore, provide a comprehensive heterogeneous explosion for pipeline, detonation test device.

Disclosure of Invention

In view of the above, the present invention is directed to a comprehensive multiphase detonation, detonation testing device for pipelines, which solves or alleviates the technical problems of the prior art and provides at least one useful choice.

The technical scheme of the embodiment of the invention is realized as follows: a comprehensive multiphase explosion and detonation test device for a pipeline comprises a movable support, a phi 219 container pipeline, a multi-point position direct-injection type dust cloud spraying system, a multi-point position loop type liquid fog spraying system, a sensor, an ignition device, a first pipeline, a second pipeline, a safety device, a multi-gas internal circulation gas mixing pipeline and an observation window, wherein the phi 219 container pipeline comprises an ignition section, a test section and an observation section;

sixteen horizontal adjusting trundles are symmetrically mounted on the lower surface of the movable support, six annular fasteners are symmetrically mounted on the upper surface of the movable support, the inner side walls of the annular fasteners are fixedly mounted on the outer side wall of the phi 219 container pipeline, the phi 219 container pipeline is composed of the ignition section, the test section and the observation section, two pressure gas inlet valves are respectively connected to the left lower end of the movable support and the pressure gas inlet at the right lower end of the movable support, two pressure gas inlet valves are respectively mounted on the two pressure gas inlet valves, two pressure gas pipelines are respectively mounted at adjacent ends of the two pressure meters, six multipoint direct injection type dust cloud spraying systems, six multipoint loop type liquid mist spraying systems and twelve ferrule joints are respectively connected to the outer side wall of the pressure gas pipeline, a first ball valve is mounted at the top end of each ferrule straight pipe joint, the top end of the first ball valve is provided with a gas storage tank, the upper surface of the gas storage tank is provided with an electromagnetic valve, the top end of the electromagnetic valve is provided with a cutting sleeve elbow bend, one end of the cutting sleeve elbow bend is provided with a one-way valve, one end of the one-way valve is provided with a high-pressure connecting pipe, one end of two adjacent high-pressure connecting pipes is respectively provided with a direct-injection type dust cloud sprayer and a loop type liquid fog sprayer, one end of the direct-injection type dust cloud sprayer and one end of the loop type liquid fog sprayer are respectively provided with a longitudinal sprayer body, one end of the longitudinal sprayer body is arranged on the central horizontal line of the outer walls of the front surface and the back surface of the phi 219 container pipeline, one end of the phi 219 container pipeline is respectively welded with six high-pressure flanges, the adjacent sides of the two high-pressure flanges can be mutually arranged, and the repelling sides of the two high-pressure flanges are respectively and movably provided with ignition electrode interface high-pressure flange covers, an ignition electrode is installed on one side of the ignition electrode interface high-pressure flange cover, an igniter is electrically connected to one side of the ignition electrode through an electric wire, an observation window is evenly installed on the outer side wall of the observation section, four flanges are symmetrically installed on the central line position of the observation section, high-pressure glass is installed on the upper surface of each flange, a fluororubber gasket is placed on the upper surface of the high-pressure glass, a compression ring is fixed on the upper surface of the high-pressure glass through bolt threads, the high-pressure flange cover is installed on the right end face of the observation section, one end of a second pipeline is installed on the left side of the test section, one end of a first pipeline is installed on the right side of the test section, two flange connecting pipes are respectively welded at the repelling end of the first pipeline and the second pipeline, a flange ball valve is installed at the top end of each flange connecting pipe, and a four-way interface is installed at the top end of each flange ball valve, one end of the four-way connector is provided with a vacuum pressure gauge, one end of the four-way connector is respectively and symmetrically provided with three second ball valves, one end of one second ball valve is provided with a high-pressure hose, one end of the high-pressure hose is provided with a gas mixing pipeline, the outer side wall of the gas mixing pipeline is provided with a circulating pump and forms an internal circulating gas mixing system for various gases in the pipeline, one end of the other second ball valve is provided with a vacuumizing hose, one end of the vacuum pumping hose is provided with a vacuum pump, the bottom wall of the outer side of the ignition section is provided with a safety device, the outer side wall of the gas mixing pipeline is provided with a gas mixing pipeline dismounting port flange, the outer side wall of the pressure gas pipeline is provided with a pressure gas pipeline dismounting port flange, twelve sensors are arranged, and the lower surfaces of the twelve sensors are uniformly arranged on the top walls of the outer sides of the ignition section and the testing section.

Preferably, six multipoint direct-injection type dust cloud spraying systems are uniformly distributed on a central horizontal line of the front side of the phi 219 container pipeline, a pressure gas pipeline for powder injection and gas supply of the multipoint direct-injection type dust cloud spraying systems is movably mounted on the inner side wall of the movable support, six multipoint loop type liquid mist spraying systems are uniformly distributed on a central horizontal line of the back side of the phi 219 container pipeline, a pressure gas pipeline for mist spray and gas supply of the multipoint loop type liquid mist spraying systems is mounted on the inner side wall of the movable support, and the multiple gas internal circulation gas mixing pipeline is mounted on the upper surface of the movable support.

Preferably, the multipoint direct-injection type dust cloud spraying system and the multipoint loop type liquid mist spraying system are composed of a longitudinal spraying head body, a loop type liquid mist sprayer, a direct-injection type dust cloud sprayer, a high-pressure connecting pipe, a one-way valve, a clamping sleeve right-angle elbow, an electromagnetic valve, an air storage tank, a first ball valve, a clamping sleeve straight pipe joint, a pressure gas pipeline, a pressure gauge and a pressure gas inlet ball valve.

Further preferably, the inner fillet of the outlet of the direct-injection type dust cloud sprayer is 100 degrees, and the powder stored in the inner fillet is blown to the longitudinal spray head body to be instantly sprayed into the phi 219 container pipeline to form dust cloud.

Further preferably, one side of the ignition device is mounted on the other side of the ignition electrode, and one side of the ignition electrode is mounted on one side of the high-pressure flange cover.

Preferably, the gas mixing pipeline is connected with the air inlet and the air outlet of the circulating pump to form a gas circulation loop, the circulating pump uses pressure air as a power source, and the circulating pump can work to perform various gas circulation motions after the matched pressure air is adjusted to be connected with the circulating pump, so that the gas mixing purpose is achieved.

Preferably, the ignition electrode is simply disassembled and adjusted on the high-pressure flange cover, extends into the phi 219 container pipeline by 100mm, is connected with the igniter after being installed and fastened, and is arranged on the left end face of the phi 219 container pipeline, and the explosion flame and the explosion shock wave instantaneously move longitudinally to the right end of the pipeline after the ignition and explosion of the ignition electrode at the center of the left end face of the phi 219 container pipeline.

Further preferably, the movable support is made of a stainless steel square steel tube, and the specification of the square steel tube is 50mm × 50mm × δ 3.

Due to the adoption of the technical scheme, the embodiment of the invention has the following advantages:

the pipeline of the explosive container of the product adopts a phi 219-shaped pipeline, the material is stainless steel S30408, the design pressure of the phi 219-shaped pipeline is 10MPa, the explosion transient impact limit pressure is 10MPa, the manufacturing inspection hydraulic test pressure is 12.5MPa, pressure relief rupture disc safety equipment is installed on the phi 219-shaped pipeline, the setting pressure of the rupture disc is 10MPa, the explosion impact pressure of the phi 219-shaped pipeline exceeds 10MPa, the rupture disc automatically ruptures and releases pressure, potential safety hazards caused by the fact that the explosion impact pressure exceeds 10MPa are eliminated, safety accidents in the explosion test process are avoided, safety of testers is guaranteed, and the product has safety and reliability.

The invention can achieve the test mode conversion of various types of equipment by adjusting the mode change recombination of the movable support on each test section, and can obtain the formation cloud and fog states of two-way spraying, one-way spraying, opposite spraying, staggered spraying and staggered spraying of the dust cloud and the liquid fog in the phi 219 container pipeline by adjusting the method for spraying the dust cloud and the liquid fog by the multi-point spraying system; the device can be used for explosion, detonation shock wave and explosion-proof material tests and explosive detonation mechanics research tests, so that multi-mode, diversity, multi-method comprehensiveness, multi-component, multi-phase explosion and detonation tests of powder, dust and gas, dust and liquid, liquid fog, combustible gas, mixed gas, multi-component gas, gas and liquid fog, gas and dust and gas and particles can be carried out.

The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will be readily apparent by reference to the drawings and the following detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the embodiments or the drawings needed to be used in the technical description, and obviously, the drawings in the following description are only some embodiments of the present application.

FIG. 1 is a diagram of a comprehensive multiphase detonation, detonation testing apparatus for pipelines in accordance with the present invention;

FIG. 2 is a diagram of a multi-point staggered dust cloud and liquid mist spraying system for a phi 219 pipeline;

FIG. 3 is a view of the longitudinal spray head of the present invention;

FIG. 4 is a diagram of the direct injection dust cloud sprayer of the present invention;

FIG. 5 is a diagram of the loop type liquid mist sprayer of the present invention;

FIG. 6 is a view of the viewing window assembly of the horizontal and vertical viewing ellipsometry viewing mirrors of the present invention;

FIG. 7 is a view of the interface of the ignition electrode at the center of the flange cover on the left end face of the pipeline according to the present invention;

fig. 8 shows the R99.5 arc block body of the present invention.

Reference numerals are as follows: 1. a movable support; 2. horizontally adjusting the caster; 3. an annular fastener; 4. a pressure gas inlet ball valve; 5. a pressure gauge; 6. a pressure gas line; 7. cutting and sleeving a straight pipe joint; 8. a first ball valve; 9. a gas storage tank; 10. an electromagnetic valve; 11. cutting the right-angle elbow; 12. a one-way valve; 13. high-pressure connecting pipes; 14. direct injection dust cloud sprinklers; 15. a loop type liquid mist sprayer; 16. a longitudinal showerhead body; 17. phi 219 vessel piping; 17-1, an ignition section; 17-2, a test section; 17-3, an observation section; 18. a high pressure flange; 19. an ignition electrode interface high-pressure flange cover; 20. an ignition electrode; 21. an igniter; 22. edge jointing; 23. high-pressure glass; 24. a compression ring; 25. a high pressure flange cover; 26. a flange adapter; 27. a flange ball valve; 28. a four-way connecting pipe; 29. a vacuum pressure gauge; 30. a second ball valve; 31. a high pressure hose; 32. a gas mixing pipeline; 33. a circulation pump; 34. a vacuum hose is pumped; 35. a vacuum pump; 36. a flange of a gas mixing pipeline dismounting port; 37. a pressure gas pipeline dismounting port flange; 38. a multipoint direct-injection type dust cloud spraying system; 39. a multi-point position loop type liquid mist spraying system; 40. a sensor; 41. an ignition device; 42. a first pipeline; 43. a second pipeline; 44. a security device; 45. a multi-gas internal circulation gas mixing pipeline; 46. and (6) observing a window.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1-8, an embodiment of the present invention provides a comprehensive multiphase explosion and detonation testing apparatus for a pipeline, including a movable support 1, a phi 219 container pipeline 17, a multi-point direct injection type dust cloud spraying system 38, a multi-point loop type liquid fog spraying system 39, a sensor 40, an ignition device 41, a first pipeline 42, a second pipeline 43, a safety device 44, a multi-gas internal circulation gas mixing pipeline 45 and an observation window 46, where the phi 219 container pipeline 17 includes an ignition section 17-1, a testing section 17-2 and an observation section 17-3;

sixteen horizontal adjusting trundles 2 are symmetrically arranged on the lower surface of a movable support 1, six annular fasteners 3 are symmetrically arranged on the upper surface of the movable support 1, the inner side walls of the annular fasteners 3 are fixedly arranged on the outer side wall of a phi 219 container pipeline 17, the phi 219 container pipeline 17 is composed of an ignition section 17-1, a test section 17-2 and an observation section 17-3, the left lower end of the movable support 1 and the right lower end pressure gas inlet of the movable support 1 are respectively connected with two pressure gas inlet ball valves 4 and are respectively provided with two pressure gauges 5, one ends of the two pressure gauges 5 adjacent to each other are respectively provided with two pressure gas pipelines 6, the outer side wall of each pressure gas pipeline 6 is respectively connected with and provided with six multi-point direct injection type dust cloud spraying systems 38, six multi-point loop type liquid mist spraying systems 39 and twelve straight pipe ferrule joints 7, a first ball valve 8 is arranged at the top end of the ferrule straight pipe joint 7, a gas storage tank 9 is arranged at the top end of the first ball valve 8, an electromagnetic valve 10 is arranged on the upper surface of the gas storage tank 9, a ferrule elbow bend 11 is arranged at the top end of the electromagnetic valve 10, a one-way valve 12 is arranged at one end of the ferrule elbow bend 11, a high-pressure connecting pipe 13 is arranged at one end of the one-way valve 12, a direct-injection type dust cloud sprayer 14 and a loop type liquid fog sprayer 15 are respectively arranged at the adjacent ends of the two high-pressure connecting pipes 13, a longitudinal sprayer body 16 is arranged at the adjacent end of the direct-injection type dust cloud sprayer 14 and the loop type liquid fog sprayer 15, one end of the longitudinal sprayer body 16 is arranged on the central horizontal line of the outer walls of the front side and the back side of a phi 219 container pipeline 17, six high-pressure flanges 18 are respectively welded at one end of the phi 219 container pipeline 17, the adjacent sides of the two high-pressure flanges 18 can be mutually mounted, ignition electrode interface high-pressure flange covers 19 are respectively movably arranged at the opposite sides of the two high-pressure flanges 18, an ignition electrode 20 is installed on one side of an ignition electrode interface high-pressure flange cover 19, an igniter 21 is electrically connected to one side of the ignition electrode 20 through an electric wire, observation windows 46 are evenly installed on the outer side wall of an observation section 17-3, four flanges 22 are symmetrically installed on the central line position of the observation section 17-3, high-pressure glass 23 is installed on the upper surface of the flanges 22, a fluororubber gasket is placed on the upper surface of the high-pressure glass 23, a compression ring 24 is fixed on the upper surface of the high-pressure glass 23 through bolt threads, a high-pressure flange cover 25 is installed on the right end surface of the observation section 17-3, one end of a second pipeline 43 is installed on the left side of a test section 17-2, one end of a first pipeline 42 is installed on the right side of the test section 17-2, two flange connecting pipes 26 are respectively welded on the repellent ends of the first pipeline 42 and the second pipeline 43, and a flange ball valve 27 is installed on the top ends of the flange connecting pipes 26, the top end of the flange ball valve 27 is provided with a four-way connector 28, one end of the four-way connector 28 is provided with a vacuum pressure gauge 29, one end of the four-way connector 28 is respectively and symmetrically provided with three second ball valves 30, one end of one second ball valve 30 is provided with a high-pressure hose 31, one end of the high-pressure hose 31 is provided with a gas mixing pipeline 32, the outer side wall of the gas mixing pipeline 32 is provided with a circulating pump 33 and forms a multi-gas internal circulation gas mixing system 45 in the pipeline, one end of the other second ball valve 30 is provided with a vacuumizing hose 34, one end of the vacuumizing hose 34 is provided with a vacuum pump 35, the outer side bottom wall of the ignition section 17-1 is provided with safety equipment 44, the outer side wall of the gas mixing pipeline 32 is provided with a gas mixing pipeline dismounting port flange 36, the outer side wall of the pressure gas pipeline 6 is provided with a pressure gas pipeline dismounting port flange 37, the sensors 40 are totally provided with twelve sensors 40, and the lower surfaces of the twelve sensors 40 are uniformly arranged on the outer side top walls of the ignition section 17-1 and the testing section 17-2.

In one embodiment, six multipoint direct-spraying type dust cloud spraying systems 38 are uniformly distributed on the central horizontal line of the front surface of the phi 219 container pipeline 17, the pressure gas pipeline 6 for powder spraying and gas supplying of the multipoint direct-spraying type dust cloud spraying systems 38 is movably mounted on the inner side wall of the movable support 1, six multipoint loop type liquid fog spraying systems 39 are uniformly distributed on the central horizontal line of the back surface of the phi 219 container pipeline 17, the pressure gas pipeline 6 for spraying and gas supplying of the multipoint loop type liquid fog spraying systems 39 is mounted on the inner side wall of the movable support 1, and the multiple gas internal circulation gas mixing pipeline 45 is mounted on the upper surface of the movable support 1.

In one embodiment, the multi-point direct injection type dust cloud spraying system 38 and the multi-point loop type liquid mist spraying system 39 are composed of a longitudinal spray head body 16, a loop type liquid mist sprayer 15, a direct injection type dust cloud sprayer 14, a high-pressure connecting pipe 13, a one-way valve 12, a ferrule right-angle elbow 11, an electromagnetic valve 10, an air storage tank 9, a first ball valve 8, a ferrule straight pipe joint 7, a pressure air pipeline 6, a pressure gauge 5 and a pressure air inlet ball valve 4.

In one embodiment, the outlet of the direct injection type dust cloud sprayer 14 has a fillet of 100 degrees, and the powder stored in the fillet is suitably blown to the longitudinal spray head body 16 to be instantly sprayed into the pipe of the phi 219 container to form dust cloud.

In one embodiment, one side of the ignition device 41 is mounted to the other side of the ignition electrode 20 and one side of the ignition electrode 20 is mounted to one side of the high pressure flange cover 19.

In one embodiment, the air mixing pipeline 32 is connected with an air inlet and an air outlet of the circulating pump 33 to form an air circulation loop, the circulating pump 33 uses pressure air as a power source, and the matched pressure air can work to perform various air circulation motions after being connected with the circulating pump 33, so that the purpose of air mixing is achieved.

In one embodiment, the ignition electrode 20 is simply and detachably adjusted on the high-pressure flange cover 19, the ignition electrode 20 extends into the phi 219 container pipeline for 17100mm in length, is connected with the igniter 21 after being installed and fastened, and is arranged on the left end face of the phi 219 container pipeline 17, after the ignition and explosion of the central ignition electrode 20, the explosion flame and the explosion shock wave instantaneously move longitudinally towards the right end of the pipeline and change.

In one embodiment, the material of the movable support 1 is a stainless steel square steel tube, and the specification of the square steel tube is 50mm multiplied by delta 3.

In one embodiment, one of the ball valves 30 is used as an air inlet and the other ball valve 30 is used as an air exhaust and pressure relief on the first line 42 of the test section 17-2. The pipeline of the explosive container adopts a phi 219 stainless steel pipeline, the total length of the phi 219 stainless steel pipeline 17 is 4700mm, the pipeline is divided into 3 groups of test sections, the first section is an ignition section driving section 17-1 mm in length, the second section is a test section 17-2 mm in length, the third section is an observation section 17-3 mm in length, the 3 groups of test sections can be independently movable test sections respectively, the test sections can be simply disassembled and interchanged, a plurality of test modes are integrated, and the test sections are simply disassembled and are a multi-mode explosive and detonation test device with good interchangeability.

In one embodiment, the multipoint direct-spraying dust cloud spraying system 38 is uniformly installed on the central horizontal line of the front surface of the phi 219 container pipeline 17 at multiple points, can also be simultaneously and uniformly installed on the central horizontal lines of the front surface and the back surface of the phi 219 container pipeline 17, and can also be symmetrically and staggeredly installed on the central horizontal line of the phi 219 container pipeline 17; the dust explosion test device adopts a phi 219 container pipeline 17, six multi-point position direct-spraying type dust cloud spraying systems 38 are uniformly arranged and installed by taking a central horizontal line on the front side of the phi 219 container pipeline 17 as a reference line, six multi-point position loop type liquid mist spraying systems 39 are uniformly arranged and installed by taking a central horizontal line on the back side as a reference line, when a dust explosion test is carried out, only a first ball valve 8 of the back multi-point position loop type liquid mist spraying system 39 is required to be closed, no spraying pressure gas is provided, meanwhile, an electromagnetic valve 10 is closed, no gas supply passage is opened, the back multi-point position loop type liquid mist spraying system 39 is closed by simple operation, and then the dust cloud spraying on the front side in the phi 219 container pipeline 17 is carried out, namely, ignition and explosion are carried out.

In one embodiment, the multi-point position loop type liquid mist spraying system 39 is uniformly arranged and installed at multiple points on the central horizontal line of the back side of the phi 219 container pipeline 17, can also be symmetrically and staggeredly installed at multiple points on the central horizontal lines of the front side and the back side of the phi 219 container pipeline 17, and can spray liquid mist on a single side, opposite spraying, staggered spraying and staggered time; the liquid fog explosion test method is characterized in that a phi 219 container pipeline 17 is adopted, six multi-point position loop type liquid fog spraying systems 39 are uniformly arranged and installed by taking a central horizontal line on the back side of the phi 219 container pipeline 17 as a reference line, six multi-point position direct spraying type dust cloud spraying systems 38 are uniformly arranged and installed by taking a central horizontal line on the front side as a reference line, when a liquid fog explosion test is carried out, only a first ball valve 8 and an electromagnetic valve 10 of the front side multi-point position direct spraying type dust cloud spraying system 38 are required to be closed, a spraying air supply passage is not required to be opened, and then back side liquid fog is sprayed into the phi 219 container pipeline 17 to be ignited and exploded.

In one embodiment, the phi 219 container pipeline 17 is designed, manufactured and inspected according to the GB/T150.1-150.4-2011 pressure container standard, and all pressure elements are processed and manufactured according to the standard; the inner wall surface of the phi 219 container pipeline 17 is precisely polished, the precision reaches 9-1000 meshes of Ra0.2 mu m surface smoothness, and the inner wall surface of the phi 219 container pipeline 17 is as smooth as a mirror, so that the device is very suitable for longitudinally spraying dust cloud and liquid mist in the pipeline, and realizes longitudinally and radially balanced natural scattering of the dust cloud and the liquid mist in the pipeline and instantaneous ignition and explosion.

In one embodiment, the phi 219 container pipeline 17 is made of stainless steel S30408, and has a specification of phi 219 x 4700mm, six multi-point direct-spraying type dust cloud spraying systems 38 are installed on a central horizontal line of the front surface of an ignition section 17-1 and a test section 17-2, six multi-point loop type liquid mist spraying systems 39 are installed on a central horizontal line of the back surface, each section is independently assembled with a movable support 1 to form an independent and complete explosion test section, the ignition section 17-1 and the test section 17-2 can independently perform explosion tests and can be combined in two sections, the ignition section 17-1 and the test section 17-2 can be independently combined with the observation section 17-3, the observation section 17-3 can be used as a gas explosion ignition section, and the observation section 17-3 can be installed at a position between the ignition section 17-1 and the test section 17-2 to perform explosion test, The detonation test is simple, convenient and quick in disassembly, assembly, adjustment and combination of multiple test modes.

In one embodiment, the first pipeline 42 and the second pipeline 43 are used for air inlet, air exhaust, air mixing and vacuum pumping pipelines, the specification of the high-pressure glass 23 is R25mm multiplied by 50mm multiplied by 215mm, the visible part is R17.5mm multiplied by 35mm multiplied by 165mm, the explosion impact pressure resistance is 10MPa, and the explosion instantaneous flame temperature resistance is 1200 ℃.

In one embodiment, the dust cloud sprayer 14 can be easily disassembled, exchanged and exchanged on the front and back sides, and when a dust explosion test is performed, if the dust cloud is pursued to generate various situations with different layer densities, the six loop type liquid mist sprayers 15 on the back side can be disassembled to exchange the direct spraying dust cloud sprayer 14, so that the six direct spraying dust cloud sprayers 14 are manufactured as spare parts, and the dust cloud spraying, staggered spraying and single spraying can be performed, the various dust clouds are formed, and different explosion results are generated by different dust cloud densities and situations.

In one embodiment, the loop type liquid mist sprayer 15 is in a shape of a Chinese character 'hui', a liquid storage chamber is arranged in the middle of a lower air path of the Chinese character 'hui', two air inlet paths are arranged at the left end of the loop, one air outlet path at the right end is arranged at an air outlet, a lower air path at the left end enters the liquid storage chamber to rapidly blow and spray liquid to an outlet at the right end, and the two air paths and the liquid are combined and sprayed into a phi 219 container pipeline 17 of a longitudinal spray head body 16 under the action of strong suction force generated by the ventilation pressure of an upper air path at the left end to cause liquid mist shape and instantaneous ignition and explosion.

In one embodiment, the loop type liquid mist sprayer 15 can be easily disassembled, exchanged and adjusted on the front surface and the back surface of the phi 219 container pipeline 17, when liquid mist explosion is carried out, if liquid mist spraying tests with high density, high concentration and various situations are pursued, six direct spraying type dust cloud sprayers 14 on the front surface can be disassembled to exchange the loop type liquid mist sprayer 15, six loop type liquid mist sprayers 15 are manufactured to be used as spare parts, liquid mist opposite spraying, staggered spraying and single-side spraying can be carried out, various liquid mist change forms are created, and explosion results generated by different liquid mist forms, concentrations and densities are different.

In one embodiment, the longitudinal spray head body 16 can be detached before explosion test of combustible gas, mixed gas and multi-component gas, the R99.5 block body is replaced, the R arc R99.5 at the front end of the block body is consistent with the inner arc R99.5 of the phi 219 container pipeline 17, the combustible gas is input into the phi 219 container pipeline 17 through the first pipeline 42 and the second pipeline 43 and the air inlet interface ball valve 30 after the R99.5 arc block body is replaced, and the R99.5 arc block body prevents the combustible gas and the mixed gas from entering the pipelines of the multi-point direct injection type dust cloud spraying system 38 and the multi-point return type liquid mist spraying system 39 to be combusted and exploded; the first is to prevent the loss of combustible gas, and the second is to prevent the explosion in the pipelines of the multi-point direct-injection type dust cloud spraying system 38 and the multi-point loop type liquid mist spraying system 39, which can be used to truly reflect the explosion data and curve diagram of a certain amount of combustible gas input into the phi 219 container pipeline 17.

In one embodiment, the viewing window 46 is a horizontal, vertical viewing ellipsoscope, and the ellipsoscope window 46 is arranged in front of, behind and below the central horizontal line of the vessel 17 with phi 219; the product is respectively provided with two observation windows 46 on the central horizontal plane and the central vertical plane of an observation section 17-3 of a phi 219 container pipeline 17 and is used for high-speed camera shooting of the explosive flame change process and optical test.

In one embodiment, the movable support 1 meets the total bearing weight of the equipment, the overall size of the movable support is required to greatly maintain the stability and the balance of the equipment and meet the balance weight of the equipment, horizontal adjusting casters are installed for moving and adjusting the equipment, after the horizontal adjustment is stable, the equipment is braked and fixed on the ground, the phi 219 container pipeline 17 can be divided into three test sections, each test section is provided with the movable support 1 to form an independent whole set of test section, a high-pressure flange 18 for connecting each section is opened, a new test section mode can be recombined for carrying out explosion test, and the movable support is also used for cleaning and clearing dust and black ash generated by explosion in the phi 219 container pipeline 17 and explosive compounds on the inner wall, so that the explosion test space in the phi 219 phi container pipeline 17 is kept smooth like a mirror.

The invention is in operation: after the exchanged spray head body 16 is installed with the R99.5 arc blocking body, combustible gas is input into the phi 219 container pipeline 17 through the second ball valve 30 of the air inlet interface according to a certain amount, or multiple gases are input for internal circulation gas mixing, so that the gases do not flow into a spray pipeline any more, the gas quantity is ensured not to be lost, and the explosion test of the gases, the mixed gases and the multi-component gases is carried out. The phi 219 container pipeline 17 is used as an explosion container pipeline for testing pipeline space of dust, liquid fog and gas multiphase explosion and detonation, before explosion test, the flange ball valves 27 and the second ball valves 30 of the first pipeline 42 and the second pipeline 43 on the container pipeline are closed in advance, a high-speed camera is aligned to an observation window 46 in horizontal and vertical directions, a computer host and a data acquisition connection sensor 40 are connected, and the main controller is connected with an ignition device 41 and an electromagnetic valve 10 for controlling a pressure gas sprayer. Strictly checking and locking a phi 219 container pipeline 17, connecting a multipoint direct-injection type dust cloud spraying system 38 and a multipoint loop type liquid fog spraying system 39, locking an ignition electrode 20 on an ignition high-pressure flange cover 19, locking a fastening screw on an observation window 40 on an observation section 17-3, and locking a safety device 44 assembly screw, so that the phi 219 container pipeline 17 is in a safe use state, and ensuring that the pressure of the phi 219 container pipeline 17 is not leaked and sealed strictly; opening a pressure gas inlet ball valve 4 on a movable support 1, inputting pressure gas required for spraying into a gas storage tank 9 through a pressure gauge 5 and a first ball valve 8, connecting a solenoid valve 10 of a gas passage of the gas storage tank 9 with a 220V power supply, connecting the solenoid valve 10 with a main controller, connecting the solenoid valve 10 with a one-way valve 12 of the gas passage, connecting the one-way valve 12 with a direct-spraying type dust cloud sprayer 14 and a loop type liquid fog sprayer 15, and connecting the direct-spraying type dust cloud sprayer 14 with a longitudinal sprayer body 16 of the gas passage of the loop type liquid fog sprayer 15; the multipoint direct-injection type dust cloud spraying system 38 and the multipoint loop type liquid mist spraying system 39 uniformly spray dust cloud and liquid mist longitudinally and radially in the phi 219 container pipeline 17; when the electromagnetic valve 10 is in a normally closed state, the control system is switched on to power the electromagnetic valve 10 and then is opened; opening a pressure gas inlet ball valve 4 on the movable support 1 to be connected with a pressure gas source, conveying pressure gas into a pressure gas storage tank 9, adjusting the pressure to the gas amount to be sprayed, and then closing the pressure gas inlet ball valve 4 of a gas source interface; because the electromagnetic valve 10 is normally closed, the gas enters the pipeline at the front end of the electromagnetic valve 10 for 5 times/s at the moment and passes through the gas, the control system sets the delay of the igniter 21 after the electromagnetic valve 10 is opened to be 100-. Connecting a vacuum hose 34 of a vacuum pump 35 with a vacuum interface ball valve 30, vacuumizing to 0.065Mpa, closing the vacuum pump, closing a second ball valve 30, starting a control system, opening an electromagnetic valve 10, flushing pressure gas through a one-way valve 12, entering a sprayer, spraying dust and liquid in a storage chamber to a longitudinal sprayer body 16, spraying the dust and liquid to a phi 219 container pipeline to form dust cloud and liquid mist, igniting and exploding, and realizing an explosion test of the dust cloud and the liquid mist. And simultaneously when the igniter 21 is ignited, the data acquisition sensor 40 on the phi 219 container pipeline 17 simultaneously starts data acquisition work, and the high-speed camera is aligned with the observation window 46 and simultaneously starts shooting an explosive combustion flame transient image.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various changes or substitutions within the technical scope of the present invention, and these should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (8)

1. A comprehensive heterogeneous explosion, detonation test device for pipeline, including movable support (1), phi 219 container pipeline (17), multiple spot position direct injection formula dust cloud sprinkler system (38), multiple spot position return circuit formula liquid fog sprinkler system (39), sensor (40), ignition equipment (41), first pipeline (42), second pipeline (43), safety device (44), multiple gas internal circulation gas mixture pipeline (45) and observation window (46), its characterized in that: the phi 219 container pipeline (17) comprises an ignition section (17-1), a test section (17-2) and an observation section (17-3);

sixteen horizontal adjusting trundles (2) are symmetrically installed on the lower surface of the movable support (1), six annular fasteners (3) are symmetrically installed on the upper surface of the movable support (1), the inner side wall of each annular fastener (3) is fixedly installed on the outer side wall of a phi 219 container pipeline (17), the phi 219 container pipeline (17) is composed of an ignition section (17-1), a test section (17-2) and an observation section (17-3), the left lower end of the movable support (1) and the pressure gas inlet of the right lower end of the movable support (1) are respectively connected with two pressure gas inlet ball valves (4) and are respectively provided with two pressure gas pipelines (5), two pressure gas pipelines (6) are respectively installed at the adjacent ends of the pressure gas pipelines (5), and the outer side wall of the pressure gas pipeline (6) is respectively connected with six multi-point-position direct-spraying systems for spraying dust cloud The system comprises a system (38), six multi-point loop type liquid mist spraying systems (39) and twelve cutting sleeve straight pipe joints (7), wherein a first ball valve (8) is installed at the top end of each cutting sleeve straight pipe joint (7), a gas storage tank (9) is installed at the top end of each first ball valve (8), a solenoid valve (10) is installed on the upper surface of each gas storage tank (9), a cutting sleeve right-angle bend (11) is installed at the top end of each solenoid valve (10), a check valve (12) is installed at one end of each cutting sleeve right-angle bend (11), a high-pressure connecting pipe (13) is installed at one end of each check valve (12), a direct-injection type dust cloud sprayer (14) and a loop type liquid mist sprayer (15) are respectively installed at one adjacent ends of the two high-pressure connecting pipes (13), and a longitudinal sprayer body (16) is installed at one adjacent end of the direct-injection type dust cloud sprayer (14) and the loop type liquid mist sprayer (15), one end of the longitudinal spray head body (16) is installed on the central horizontal line of the front outer wall and the back outer wall of the phi 219 container pipeline (17), six high-pressure flanges (18) are respectively welded at one end of the phi 219 container pipeline (17), one adjacent sides of the two high-pressure flanges (18) can be installed mutually, one repellent side of the two high-pressure flanges (18) is respectively and movably provided with an ignition electrode interface high-pressure flange cover (19), one side of the ignition electrode interface high-pressure flange cover (19) is provided with an ignition electrode (20), one side of the ignition electrode (20) is electrically connected with an igniter (21) through an electric wire, the outer side wall of the observation section (17-3) is uniformly provided with an observation window (46), the central line position of the observation section (17-3) is symmetrically provided with four flanges (22), and the upper surface of the flange (22) is provided with high-pressure glass (23), the fluororubber gasket is placed on the upper surface of the high-pressure glass (23), a compression ring (24) is fixed on the upper surface of the high-pressure glass (23) through bolt threads, a high-pressure flange cover (25) is installed on the right end face of the observation section (17-3), one end of a second pipeline (43) is installed on the left side of the test section (17-2), one end of a first pipeline (42) is installed on the right side of the test section (17-2), two flange connecting pipes (26) are respectively welded at the repellent ends of the first pipeline (42) and the second pipeline (43), a flange ball valve (27) is installed at the top end of each flange connecting pipe (26), a four-way interface (28) is installed at the top end of each flange ball valve (27), a vacuum pressure gauge (29) is installed at one end of each four-way interface (28), three second ball valves (30) are respectively and symmetrically installed at one end of each four-way interface (28), one high-pressure hose (31) is installed to the one end of second ball valve (30), gas mixing pipeline (32) are installed to the one end of high-pressure hose (31), gas mixing pipeline (32) lateral wall is installed circulating pump (33) and is formed multiple gaseous inner loop gas mixing system (45) in the pipeline, another evacuation hose (34) are installed to the one end of second ball valve (30), vacuum pump (35) are installed to the one end of evacuation hose (34), safety equipment (44) are installed to ignition section (17-1) outside diapire, gas mixing pipeline dismantlement mouth flange (36) is installed to the lateral wall of gas mixing pipeline (32), pressure gas pipeline dismantlement mouth flange (37) is installed to the lateral wall of pressure gas pipeline (6), sensor (40) set up twelve altogether the lower surface of sensor (40) evenly install in ignition section (17-1) with test section (17-2) ) Of the outer side top wall.

2. The comprehensive multiphase detonation, detonation test device for pipes of claim 1, characterized in that: six multi-point direct-spraying type dust cloud spraying systems (38) are uniformly distributed on a central horizontal line of the front surface of the phi 219 container pipeline (17), a pressure gas pipeline (6) for powder spraying and gas supplying of the multi-point direct-spraying type dust cloud spraying systems (38) is movably mounted on the inner side wall of the movable support (1), six multi-point loop type liquid mist spraying systems (39) are uniformly distributed on a central horizontal line of the back surface of the phi 219 container pipeline (17), a pressure gas pipeline (6) for spraying and gas supplying of the multi-point loop type liquid mist spraying systems (39) is mounted on the inner side wall of the movable support (1), and a multi-gas internal circulation gas mixing pipeline (45) is mounted on the upper surface of the movable support (1).

3. The comprehensive multiphase detonation, explosion and detonation testing device for pipes of claim 1, wherein: the multipoint direct-injection type dust cloud spraying system (38) and the multipoint loop type liquid mist spraying system (39) are composed of a longitudinal spraying head body (16), a loop type liquid mist sprayer (15), a direct-injection type dust cloud sprayer (14), a high-pressure connecting pipe (13), a one-way valve (12), a clamping sleeve right-angle elbow (11), an electromagnetic valve (10), a gas storage tank (9), a first ball valve (8), a clamping sleeve straight pipe joint (7), a pressure gas pipeline (6), a pressure gauge (5) and a pressure gas inlet ball valve (4).

4. The comprehensive multiphase detonation, detonation test device for pipes of claim 1, characterized in that: the inner fillet of the outlet of the direct-injection type dust cloud sprayer (14) is 100 degrees, and the powder stored in the inner fillet is blown to the longitudinal spray head body (16) and instantly sprayed to the phi 219 container pipeline (17) to form dust cloud.

5. The comprehensive multiphase detonation, detonation test device for pipes of claim 1, characterized in that: one side of the ignition device (41) is arranged on the other side of the ignition electrode (20), and one side of the ignition electrode (20) is arranged on one side of the high-pressure flange cover (19).

6. The comprehensive multiphase detonation, explosion and detonation testing device for pipes of claim 1, wherein: gas mixing pipeline (32) be connected with circulating pump (33) air inlet, gas outlet and form the gas circulation return circuit, circulating pump (33) use pressure air as the power supply, can work after adjustment assorted pressure air connects circulating pump (33) and carry out multiple gas circulation motion, reach the gas mixing purpose, because use pressure air as the power supply, do not produce arc electricity and spark in circulating pump (33) and pipeline, explosion-proof completely.

7. The comprehensive multiphase detonation, detonation test device for pipes of claim 1, characterized in that: the ignition electrode (20) is simply disassembled and adjusted on the high-pressure flange cover (19), the ignition electrode (20) extends into the phi 219 container pipeline (17) by 100mm, is connected with the igniter (21) after being installed and fastened, and is arranged on the central ignition electrode (20) on the left end face of the phi 219 container pipeline (17) to ignite and explode, and then the explosion flame and the explosion shock wave instantaneously move longitudinally to the right end of the pipeline to change.

8. The comprehensive multiphase detonation, detonation test device for pipes of claim 1, characterized in that: the movable support (1) is made of a stainless steel square steel tube, and the specification of the square steel tube is 50mm multiplied by delta 3.

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