CN208254769U - Dust dynamic behavior visual experimental apparatus - Google Patents
Dust dynamic behavior visual experimental apparatus Download PDFInfo
- Publication number
- CN208254769U CN208254769U CN201820229599.XU CN201820229599U CN208254769U CN 208254769 U CN208254769 U CN 208254769U CN 201820229599 U CN201820229599 U CN 201820229599U CN 208254769 U CN208254769 U CN 208254769U
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- Prior art keywords
- dust
- spherical cavity
- disposed
- experimental apparatus
- dynamic behavior
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- 239000000428 dust Substances 0.000 title claims abstract description 58
- 230000000007 visual effect Effects 0.000 title claims abstract description 17
- 239000007921 spray Substances 0.000 claims abstract description 18
- 238000012545 processing Methods 0.000 claims abstract description 12
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 18
- 210000004907 gland Anatomy 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims 1
- 238000011160 research Methods 0.000 abstract description 5
- 238000005507 spraying Methods 0.000 abstract description 5
- 230000010429 evolutionary process Effects 0.000 abstract description 4
- 238000004880 explosion Methods 0.000 description 14
- 239000007789 gas Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 7
- 239000002360 explosive Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- -1 timber Substances 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model discloses dust dynamic behavior visual experimental apparatus, pedestal including central processing system, integrally formed transparent cavity and the transparent cavity of support, the bottom of transparent cavity is disposed with the spray head for spraying dust, and the both sides external of transparent cavity is respectively disposed with light source and video camera.Integrally formed transparent cavity is designed in the utility model, the dust cloud image data in transparent cavity is acquired by the camera system of two sides, and analyze processing through central processing system and obtain dust cloud evolutionary process.The utility model precise structure, data acquisition is complete and comprehensive, can be widely applied to dust dynamics research field.
Description
Technical field
The utility model relates to dust dynamics research field, in particular to dust dynamic behavior visualized experiment fills
It sets.
Background technique
Dust explosion disaster accident, which explodes to hazard ratio fuel gas, the liquid vapour of producers, building and environment, to be produced
Raw harm is even more serious, and the potential industry distribution that dust explosion disaster accident occurs is very extensive, is related to grain, gold
Numerous industries such as category, medicine, timber, chemical industry, mining, therefore, for Characteristics of Dust Explosion parameter experimental study be conducive to for
Dust explosion prevention and horizontal being promoted of guard technology provide important theory support.Dust explosion characteristic parameter includes most producing shockingly
Fried pressure, maximum pressure raise and explosion index etc., the analysis of experimental data obtained based on typical explosion experimental facility are logical
Often assume that dust particles form highly uniform dust cloud in blast storehouse.But due to being affected by various factors,
Such as the shadow of the degree that is uniformly dispersed of dust physical property, experimental provision, test method and environment, especially inflammable-explosive dust particles
It rings, the validity of related experiment result needs to be further discussed.
The confidence level of the experimental result of dust explosion characteristic parameter depends critically upon the degree that is uniformly dispersed of inflammable-explosive dust,
The uniformity of Dust distribution is to carry out the key content of related experiment in blast storehouse.Currently, typical dust explosion test both at home and abroad
Two kinds of device such as 20L USBM and Siwek typical blast storehouses are all made of the steel structure of high temperature resistant, high pressure, and it is quick-fried that dust may be implemented
The experiment of fried process, but due to the fixation of ignition delay time and can not global visualization defect, so can not confirm
The Dust distribution situation that time of ignition explodes in cabin, very big error is brought to experimental result, it is difficult to for powder in engineer application
The protection of dust explosion disaster provides scientific and effective experimental data with the research and development for weakening technology and supports.
Due to the shortage of inflammable-explosive dust dispersion dynamics behavior experimental system visualizing, dust explosion protection mostly at present
Expert is primarily upon the research of dust explosion characteristic parameter and dust explosion precautionary measures etc., and for inflammable-explosive dust point
The research for the process of dissipating is opposite to be lacked.
Utility model content
The technical problem to be solved by the utility model is to provide dust dynamic behavior visual experimental apparatus, the present invention
Using the visual scheme of all-transparent, the defect in above-mentioned experimental provision observation is overcome, to can realize that sprayed from ducts is dynamic
The qualitative assessment of mechanical behavior, the measuring for carrying out inflammable-explosive dust explosion characteristic parameter for science provide foundation.
Used technical solution to solve above-mentioned technical problem:
Dust dynamic behavior visual experimental apparatus, including central processing system further include integrally formed transparent chamber
Body and the pedestal for supporting the transparent cavity, the bottom of the transparent cavity are disposed with the spray head for spraying dust, the transparent chamber
The both sides external of body is respectively disposed with light source and video camera.
Further, the transparent cavity is the spherical cavity of all-transparent.
Further, the centre of sphere of the light source, video camera and the spherical cavity is located at same level.
Further, the upper end of the pedestal is disposed with the mounting base that can fix the spherical cavity, the mounting base it is upper
End is cambered surface, and the cambered surface and the outer surface of the spherical cavity match.
Further, the bottom of the spherical cavity is disposed with the first opening, is disposed with the first screwed pipe in first opening,
The first through hole being passed through inside the spherical cavity is disposed on first screwed pipe, the spray head is connected by the first through hole
It is connected with gas powder feeding mechanism.
Further, the bottom of the spherical cavity is disposed with bottom gland, the bottom gland and the spherical cavity bottom
Intracavitary gasket seal is disposed between portion.
Further, sealed bottom gasket is disposed between the bottom of the spherical cavity and the mounting base.
Further, the top layout of the spherical cavity has the second opening and seals the top sealing of second opening
Lid is disposed at least one sealing element between the top sealing cover and second opening.
Further, the gas powder feeding mechanism includes compressed gas cylinder, the storage gentle powder two-phase solenoid valve of powder tank, the compressed gas
Bottle, storage powder tank, gas powder two-phase solenoid valve and spray head are sequentially connected by pipeline.
Further, the spherical cavity is protruded into the bottom of the top sealing cover, the bottom be cambered surface, the cambered surface with it is described
The inner surface configuration of spherical cavity matches.
The utility model has the advantages that integrally formed transparent cavity is designed in the utility model, it can be complete by the camera system of two sides
Dust cloud image data in the accessible transparent cavity of acquisition in orientation, and analyze processing through central processing system and obtain dust cloud
Evolutionary process.The utility model precise structure, data acquisition is complete and comprehensive, can be widely applied to dust dynamics research field.
Detailed description of the invention
Fig. 1 is the main view of the utility model；
Fig. 2 is the structure chart of top seal assembly；
Fig. 3 is the structure chart of sealed bottom component.
Specific embodiment
The utility model is described further below with reference to Fig. 1 to Fig. 3.
Dust dynamic behavior visual experimental apparatus, including central processing system 4, integrally formed transparent 2 and of cavity
The pedestal 6 of the transparent cavity 2 is supported, the central processing system 4 controls the work of entire experimental provision.The transparent cavity
2 bottom is disposed with the spray head 16 for spraying dust, and the both sides external of the transparent cavity 2 is respectively disposed with light source 11 and video camera
3.The light source 11 is opposite with the position of video camera 3, and the two forms camera system.In the present embodiment, the transparent cavity 2 is complete
Transparent spherical cavity, and the spherical cavity is made of the acrylic material of all-transparent, design capacity 20L, design is most
Big pressure of bearing is 1MP.
In the present embodiment, the spray head 16 is to test common dust spray head.
The centre of sphere of the light source 11, video camera 3 and the spherical cavity is located at same level.In the spherical cavity
In, spray head 16 forms dust cloud after spraying dust, and light source 11 irradiates the dust sprayed in spherical cavity, and simultaneous camera 3 carries out
It is continuously shot, and by 4 acquisition process data of central processing system, can be obtained the space-time in clearly gas powder two-way coupling flow field
Dynamic evolution process.In the present embodiment, the video camera 3 is high-speed digital video camera.
The bottom of the spherical cavity is disposed with the first opening, is disposed with the first screwed pipe 20 in first opening, described
The first through hole being passed through inside the spherical cavity is disposed on first screwed pipe 20, the spray head 16 is connected by the first through hole
It is connected with gas powder feeding mechanism.The gentle powder feeding mechanism of the spray head 16 forms powder spraying system.
The bottom of the spherical cavity is disposed with bottom gland 15, the bottom gland 15 and the spherical cavity bottom it
Between be disposed with intracavitary gasket seal 14, the intracavitary gasket seal 14 seals between first opening and first screwed pipe 20
Gap, the middle part of the bottom gland 15 is disposed with the threaded hole to match with first screwed pipe 20, the bottom gland
15 tighten and push down the intracavitary gasket seal 14.In the present embodiment, the upper and lower side of the bottom gland 15 be all made of with thoroughly
The cambered surface of bright 2 inner surface same curvature of cavity.
The upper end of the pedestal 6 is disposed with the mounting base 12 that can fix the spherical cavity, the upper end of the mounting base 12
For cambered surface, the cambered surface and the outer surface of the spherical cavity match.The bottom of the spherical cavity and the mounting base 12 it
Between be disposed with sealed bottom gasket 13, the sealed bottom gasket 13 seals the seam between first opening and the first screwed pipe 20
Gap.Therefore, it can guarantee the leakproofness of first opening by the intracavitary gasket seal 14 and sealed bottom gasket 13.
The top layout of the spherical cavity has the second opening and seals the top sealing cover 1 of second opening, described
The spherical cavity is protruded into the bottom of top sealing cover 1, and the end face of the bottom is cambered surface, and the cambered surface is interior with the spherical cavity
Surface shape matches.At least one sealing element, the present embodiment are disposed between the top sealing cover 1 and second opening
In, the quantity of the sealing element is two, respectively top gasket seal 18 and top sealing ring 17.The top gasket seal
18 are arranged between the top sealing cover 1 and the top of the spherical cavity, and the top sealing ring 17 is arranged in the top
Between the bottom of portion's sealing cover 1 and the second opening inner wall.It is right by the top gasket seal 18 and top sealing ring 17
Second opening realizes secondary seal, strengthens the leakproofness of the spherical cavity.
It is intracorporal by 5 real-time detection spherical cavity of vacuum meter for the leakproofness for guaranteeing the spherical cavity in the present embodiment
Vacuum degree.
In the present embodiment, the spray head 16, intracavitary gasket seal 14 and bottom gland 15 enter institute from second opening
State spherical cavity.
The gas powder feeding mechanism includes compressed gas cylinder 8, the storage gentle powder two-phase solenoid valve 7 of powder tank 10, the compressed gas cylinder
8, powder tank 10, gas powder two-phase solenoid valve 7 and spray head 16 are stored up to be sequentially connected by conduit, is disposed with pressure gauge on the storage powder tank 10
9。
It is as follows using the operating process of the utility model:
1, the air-tightness of spherical cavity is checked first, spherical cavity is extracted into the nearly vacuum state of 0.06MPa, is passed through
Vacuum meter observes the vacuum degree of spherical cavity, if the apparent variation of no appearance in vacuum degree holding 30 minutes or more, confirmation ball
Shape cavity air-tightness meets requirement of experiment.
2, it opens compressed gas cylinder and is passed through high pressure gas into storage powder tank, formed with the inflammable-explosive test dust stored in advance
2MPa high pressure primary mixture.
3, light source and video camera are opened, the acquisition for carrying out data image to the process of dusting and dust cloud evolutionary process is prepared.
4, gas powder two-phase solenoid valve is opened, spray head sprays primary mixture into spherical cavity, gradually in spherical cavity
Develop the dust cloud for being formed and being evenly distributed.
5, central processing system will obtain the dust cloud evolutionary process of full physical space after data processing that video camera acquires.
The embodiments of the present invention is explained in detail in conjunction with attached drawing above, but the utility model is not limited to
State embodiment, within the scope of knowledge possessed by those of ordinary skill in the art, can also do not depart from it is practical
Various changes can be made under the premise of novel objective.
Claims (10)
1. dust dynamic behavior visual experimental apparatus, including central processing system (4), it is characterised in that: further include one
The pedestal (6) of molding transparent cavity (2) and the support transparent cavity (2), the bottom of the transparent cavity (2) is disposed with spray
The both sides external of the spray head (16) of dust out, the transparent cavity (2) is respectively disposed with light source (11) and video camera (3).
2. dust dynamic behavior visual experimental apparatus according to claim 1, it is characterised in that: the transparent cavity
It (2) is the spherical cavity of all-transparent.
3. dust dynamic behavior visual experimental apparatus according to claim 2, it is characterised in that: the light source
(11), the centre of sphere of video camera (3) and the spherical cavity is located at same level.
4. dust dynamic behavior visual experimental apparatus according to claim 2, it is characterised in that: the pedestal (6)
Upper end be disposed with the mounting base (12) that can fix the spherical cavity, the upper end of the mounting base (12) is cambered surface, the cambered surface
Match with the outer surface of the spherical cavity.
5. dust dynamic behavior visual experimental apparatus according to claim 2, it is characterised in that: the spherical cavity
Bottom be disposed with the first opening, be disposed with the first screwed pipe (20) in first opening, arranged on first screwed pipe (20)
There is the first through hole being passed through inside the spherical cavity, the spray head (16) is communicated with gas powder supply dress by the first through hole
It sets.
6. dust dynamic behavior visual experimental apparatus according to claim 5, it is characterised in that: the spherical cavity
Bottom be disposed with bottom gland (15), be disposed with intracavitary sealing between the bottom gland (15) and the spherical cavity bottom
Gasket (14).
7. dust dynamic behavior visual experimental apparatus according to claim 4, it is characterised in that: the spherical cavity
Bottom and the mounting base (12) between be disposed with sealed bottom gasket (13).
8. dust dynamic behavior visual experimental apparatus according to claim 2, it is characterised in that: the spherical cavity
Top layout have the second opening and seal it is described second opening top sealing cover (1), the top sealing cover (1) with it is described
At least one sealing element is disposed between second opening.
9. dust dynamic behavior visual experimental apparatus according to claim 5, it is characterised in that: the gas powder supply
Device include compressed gas cylinder (8), storage powder tank (10) gentle powder two-phase solenoid valve (7), the compressed gas cylinder (8), storage powder tank (10),
Gas powder two-phase solenoid valve (7) and spray head (16) are sequentially connected by pipeline.
10. dust dynamic behavior visual experimental apparatus according to claim 8, it is characterised in that: the top is close
The spherical cavity is protruded into the bottom of capping (1), which is cambered surface, the inner surface configuration phase of the cambered surface and the spherical cavity
Matching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820229599.XU CN208254769U (en) | 2018-02-08 | 2018-02-08 | Dust dynamic behavior visual experimental apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820229599.XU CN208254769U (en) | 2018-02-08 | 2018-02-08 | Dust dynamic behavior visual experimental apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208254769U true CN208254769U (en) | 2018-12-18 |
Family
ID=64607619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820229599.XU Active CN208254769U (en) | 2018-02-08 | 2018-02-08 | Dust dynamic behavior visual experimental apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN208254769U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900609A (en) * | 2019-03-14 | 2019-06-18 | 北京理工大学 | A kind of wide range dust concentration detector calibration system and scaling method |
-
2018
- 2018-02-08 CN CN201820229599.XU patent/CN208254769U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900609A (en) * | 2019-03-14 | 2019-06-18 | 北京理工大学 | A kind of wide range dust concentration detector calibration system and scaling method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240708 Address after: 510663 No.9, Keke Road, Huangpu District, Guangzhou City, Guangdong Province Patentee after: Guangzhou Special Equipment Testing and Research Institute (Guangzhou Special Equipment Accident Investigation Technology Center Guangzhou Elevator Safety Operation Monitoring Center) Country or region after: China Address before: 6 / F, Liurong building, 65 Liurong Road, Yuexiu District, Guangzhou, Guangdong 510000 Patentee before: GUANGZHOU ACADEMY OF SPECIAL EQUIPMENT INSPECTION & TESTING Country or region before: China |