CN107744731A - A kind of air distributing device that experiment is fired for fuel gas, liquid vapour and dust - Google Patents
A kind of air distributing device that experiment is fired for fuel gas, liquid vapour and dust Download PDFInfo
- Publication number
- CN107744731A CN107744731A CN201711173613.5A CN201711173613A CN107744731A CN 107744731 A CN107744731 A CN 107744731A CN 201711173613 A CN201711173613 A CN 201711173613A CN 107744731 A CN107744731 A CN 107744731A
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- China
- Prior art keywords
- tank
- adapter
- gas
- fuel gas
- distributing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/70—Mixers specially adapted for working at sub- or super-atmospheric pressure, e.g. combined with de-foaming
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/10—Mixing gases with gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/10—Mixing gases with gases
- B01F23/12—Mixing gases with gases with vaporisation of a liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/70—Pre-treatment of the materials to be mixed
- B01F23/711—Heating materials, e.g. melting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/211—Measuring of the operational parameters
- B01F35/2113—Pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/83—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/23—Mixing of laboratory samples e.g. in preparation of analysing or testing properties of materials
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Present invention aims at provide a kind of air distributing device for fuel gas, liquid vapour and dust combustion deflagration experimentation, including bus duct, raw material gas bottle, vavuum pump, mixed gas tank, heating tank, heating tape, accessories section.The mixed gas tank and heating tank are drum-shaped storage tank, and bottom is provided with support base.The accessories section is taken over including escape pipe, the adapter of raw material gas bottle, vavuum pump adapter, pressure-reducing valve adapter, gauge manifold, vacuum meter adapter, the mixed gas tank being arranged on bus duct；Bus duct adapter, the atmospheric valve adapter being arranged on mixed gas tank；It is arranged on the gauge manifold at the top of heating tank, thermometer adapter, enters liquid adapter.
Description
Technical field
The present invention relates to a kind of air distributing device that experiment is fired for fuel gas, liquid vapour and dust, belong to containing energy
Material Field.
Background technology
Modern industrial production need it is a large amount of use imflammable gas, also generate while production substantial amounts of liquid vapour with
Dust, because the safety of China production precautionary measures are not perfect enough, substantial amounts of fuel gas, liquid vapour and dust all occur every year
Explosion accident, great threat is brought to the people's lives and property.Experiment is fired by fuel gas, liquid vapour and dust,
Can explore and recognize fuel gas, generation, development and the DDT mechanism of liquid vapour and dust explosion, so as to fuel gas,
Control, prevention and the accident investigation of liquid vapour and method dust explosion provide theoretical foundation and corresponding suggestion.Fuel gas and
The configuration of liquid vapour plays an important role to firing experimental result.Conventional fuel gas, liquid vapour and dust explosion examination is in fact
The air distribution system of experiment device is typically mixed directly by gas cylinder, flow controlling unit, mechanical pressure gauge composition, artificial reading, gas
Experimental provision is mixed into from gas cylinder.As various gases by pipeline are directly passed through reaction unit by Hartmann Bomb air distribution system.More than
Experimental facilities air distribution system shortcoming is that distribution precision is influenceed greatly by external factor, it is impossible to gas is heated, it is impossible to realize gas
Premixed with liquid vapour, adjacent trial interval time length, conventional efficient is low, and air distributing device function is single, poor for applicability.
Patent CN104569315 imflammable gas air distributing device can only mix fuel gas, and mixed gas tank can not heat, will
Flammable liquid is heated into liquid vapour, realizes that flammable liquid steam mixes with fuel gas.
The content of the invention
A kind of air distributing device for fuel gas, liquid vapour and dust combustion deflagration experimentation, including bus duct, it is former
Expect gas bottle, vavuum pump, mixed gas tank, heating tank, heating tape, accessories section.
The mixed gas tank and heating tank are drum-shaped storage tank, and bottom is provided with support base.
The accessories section include being arranged on escape pipe on bus duct, the adapter of raw material gas bottle, vavuum pump adapter,
Pressure-reducing valve adapter, gauge manifold, vacuum meter adapter, mixed gas tank adapter；The bus duct being arranged on mixed gas tank is taken over, put
Empty valve adapter；It is arranged on the gauge manifold at the top of heating tank, thermometer adapter, enters liquid adapter.
The pipeline is stainless-steel pipe or high-pressure rubber pipe, and diameter 6mm, connection seals firmly close using double card circle
Envelope.
Compared with prior art, beneficial effects of the present invention：
System architecture is reasonable, easy to operate, multiple functional；Fired suitable for various fuel gas, liquid vapour and dust
Experimental provision, reduce experiment spending；Air distributing device separates flammable liquid and fuel gas, individually heating, improves the peace of experiment
Quan Xing；Device uses partial pressure method distribution, can accurately adjust distribution ratio, realizes fuel gas and liquid vapour mixing.
Brief description of the drawings
Fig. 1 is the structural representation that fuel gas, liquid vapour and dust fire experimental provision air distribution system.
List of parts representated by accompanying drawing Zhong Ge names is as follows：
1 bus duct；2 stop valves；3 gas outlets；4 reserved unstripped gas cylinder interfaces；5 raw material gas bottles；6 pressure-reducing valves；7
Vavuum pump；8 vacuum meters；9 pressure gauges；10 waste gas exhaust pipes；11 mixed gas tank ladle bowls；12 mixed gas tank discharging tubes；13 mixed gas tank bases；
14 mixed gas tanks and heating tank connecting tube；15 digital display manometers；16 thermometers；17 feed tubes；18 heating tank shells；19 heating tapes；
20 heating tank discharging tubes；21 bases.
Embodiment
The invention will be further described with embodiment below in conjunction with the accompanying drawings, but not as to involved in the present invention
Technical scheme limitation.
Embodiment 1：
A kind of air distributing method of fuel gas air distributing device (by taking air-hydrogen premix as an example) this method includes following step
Suddenly：
(1) the hydrogen gas partial pressure according to needed for being calculated partial pressure method.Mixed gas tank 30L, gas stagnation pressure needed for institute is 2MPa, required hydrogen
Gas concentration is 10%, then calculates hydrogen gas partial pressure 0.2MPa by partial pressure method.
(2) stop valve on vacuum meter and vavuum pump is opened, closes other valves, starts vavuum pump and mixed gas tank is taken out
Vacuum, vacuum pressure meter reading is observed, when reading reaches -0.1MPa, close stop valve on vavuum pump and vacuum meter, open hydrogen
Gas inlet valve, air inlet are passed through 0.2MPa hydrogen, are then shut off hydrogen inlet valve, then open compressed air inlet valve, are passed through
Air, when pressure gauge reading is 2MPa, compressed air inlet valve is closed, it is standby to stand a period of time.
(3) after off-test, atmospheric valve and gas inlet valve is opened, compressed air is passed through, to gas remaining in system
Purged.
Embodiment 2：
A kind of fuel gas and liquid vapour air distributing method (exemplified by air-methane-ether)
(1) gas tank 30L is mixed, gas stagnation pressure needed for heating tank volume 15L is 1MPa, and required methane concentration is 20%, ether
Concentration is 10%, then calculates methane gas partial pressure 0.2MPa, ether partial pressure 0.1MPa, according to pressure, temperature by partial pressure method
Degree and volume calculate required liquid ether quality.Heating tank actual pressure is 0.3MPa.
(2) heating tank liquid-inlet valve is opened, adds ether, closes inlet valve, opens cutting on vacuum meter and vavuum pump
Only valve, other valves are closed, start vavuum pump and mixed gas tank and heating tank are vacuumized, observe vacuum pressure meter reading, when
Reading reaches -0.1MPa, the valve closed on vavuum pump and vacuum meter, closes mixed valve between gas tank and heating tank, opens methane
Gas inlet valve, air inlet are passed through 0.2MPa methane gas, are then shut off methane gas inlet valve, open inlet for pressurised gas
Valve, 0.7MPa compressed airs are passed through, are then shut off compressed air inlet valve, while open heating tape heating, set heating-up temperature,
After pressure gauge reading reaches 0.3MPa on heating tank, stop heating, open mixed stop valve between gas tank and heating tank, be sufficiently mixed
It is standby for a period of time.
(3) after off-test, atmospheric valve and gas inlet valve is opened, compressed air is passed through, to gas remaining in system
Purged, open heating tank and mixed gas tank tapping valve, carry out discharge opeing.
Embodiment 3：
A kind of liquid vapour air distributing method (exemplified by gasoline)
(1) gas tank 30L is mixed, gas stagnation pressure needed for heating tank volume 15L is 0.8MPa.
(2) while heating tank liquid-inlet valve is opened, adds gasoline, close inlet valve, open on vacuum meter and vavuum pump
Stop valve, open mixed stop valve between gas tank and heating tank, close other valves, start vavuum pump and gas mixing pipe is taken out
Vacuum, vacuum pressure meter reading is observed, when reading reaches -0.1MPa, the valve closed on vavuum pump and vacuum meter, opening heats
Band, setting heating-up temperature heating, when pressure gauge reading reaches 0.8MPa.Stop heating.
(3) after off-test, atmospheric valve and gas inlet valve is opened, compressed air is passed through, to gas remaining in system
Purged, open stop valve on heating tank and mixed gas tank discharging tube, carry out discharge opeing.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (5)
1. a kind of air distributing device that experiment is fired for fuel gas, liquid vapour and dust, including bus duct, unstripped gas
Gas cylinder, vavuum pump, mixed gas tank, heating tank, heating tape, accessories section.
2. a kind of air distributing device that experiment is fired for fuel gas, liquid vapour and dust according to claim 1, its
It is explosive clad plate to be characterised by mixed gas tank and heat tank shell.
3. a kind of air distributing device that experiment is fired for fuel gas, liquid vapour and dust according to claim 1, its
It is characterised by that the adapter is stainless-steel pipe or high-pressure rubber hose.
4. a kind of air distributing device that experiment is fired for fuel gas, liquid vapour and dust according to claim 1, its
It is characterised by that the mixed gas tank and heating pot bottom are provided with discharging tube.
5. a kind of air distributing device that experiment is fired for fuel gas, liquid vapour and dust according to claim 1, its
It is silicon rubber to be characterised by the heating tape material, and inside is nichrome heating wire, and surface is equipped with temperature sensor, Ke Yitong
Excess temperature regulation directly controls temperature, band digital display temperature meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711173613.5A CN107744731A (en) | 2017-11-22 | 2017-11-22 | A kind of air distributing device that experiment is fired for fuel gas, liquid vapour and dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711173613.5A CN107744731A (en) | 2017-11-22 | 2017-11-22 | A kind of air distributing device that experiment is fired for fuel gas, liquid vapour and dust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107744731A true CN107744731A (en) | 2018-03-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711173613.5A Pending CN107744731A (en) | 2017-11-22 | 2017-11-22 | A kind of air distributing device that experiment is fired for fuel gas, liquid vapour and dust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107744731A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108310991A (en) * | 2018-04-19 | 2018-07-24 | 广东华特气体股份有限公司 | A kind of blending device of fuel gas and combustion-supporting gas |
| CN109187636A (en) * | 2018-10-23 | 2019-01-11 | 安徽理工大学 | The experimental provision and method of dust explosive characteristic are measured under the conditions of a kind of visualization is isobaric |
| CN110006948A (en) * | 2019-04-09 | 2019-07-12 | 西安交通大学 | Flammable liquid high pressure explosion limit measuring device and molar fraction air distributing method |
| CN110082392A (en) * | 2019-04-09 | 2019-08-02 | 西安交通大学 | High pressure explosion limit measuring device and molar fraction air distributing method based on the device |
| CN110514696A (en) * | 2019-08-27 | 2019-11-29 | 东北大学 | A kind of premixed gas Flammability limits measuring device and method |
| CN110736580A (en) * | 2019-10-28 | 2020-01-31 | 中国科学院合肥物质科学研究院 | hydrogen-dry air-water vapor explosion pressure testing device and testing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2929671Y (en) * | 2006-07-27 | 2007-08-01 | 中国计量科学研究院 | Injection gravimetric method gas distribution device |
| CN202614707U (en) * | 2011-10-19 | 2012-12-19 | 中国石油化工股份有限公司 | Device for explosiveness testing of combustible gas and steam at high temperature and high pressure |
| CN103364531A (en) * | 2013-07-17 | 2013-10-23 | 中北大学 | Combustible liquid vapor explosion and explosion suppression characteristic test system |
| CN106268493A (en) * | 2016-08-19 | 2017-01-04 | 北京艾立特科技有限公司 | A kind of liquid dynamic air-distributing device and air distributing method thereof |
-
2017
- 2017-11-22 CN CN201711173613.5A patent/CN107744731A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2929671Y (en) * | 2006-07-27 | 2007-08-01 | 中国计量科学研究院 | Injection gravimetric method gas distribution device |
| CN202614707U (en) * | 2011-10-19 | 2012-12-19 | 中国石油化工股份有限公司 | Device for explosiveness testing of combustible gas and steam at high temperature and high pressure |
| CN103364531A (en) * | 2013-07-17 | 2013-10-23 | 中北大学 | Combustible liquid vapor explosion and explosion suppression characteristic test system |
| CN106268493A (en) * | 2016-08-19 | 2017-01-04 | 北京艾立特科技有限公司 | A kind of liquid dynamic air-distributing device and air distributing method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108310991A (en) * | 2018-04-19 | 2018-07-24 | 广东华特气体股份有限公司 | A kind of blending device of fuel gas and combustion-supporting gas |
| CN109187636A (en) * | 2018-10-23 | 2019-01-11 | 安徽理工大学 | The experimental provision and method of dust explosive characteristic are measured under the conditions of a kind of visualization is isobaric |
| CN110006948A (en) * | 2019-04-09 | 2019-07-12 | 西安交通大学 | Flammable liquid high pressure explosion limit measuring device and molar fraction air distributing method |
| CN110082392A (en) * | 2019-04-09 | 2019-08-02 | 西安交通大学 | High pressure explosion limit measuring device and molar fraction air distributing method based on the device |
| CN110514696A (en) * | 2019-08-27 | 2019-11-29 | 东北大学 | A kind of premixed gas Flammability limits measuring device and method |
| CN110736580A (en) * | 2019-10-28 | 2020-01-31 | 中国科学院合肥物质科学研究院 | hydrogen-dry air-water vapor explosion pressure testing device and testing method |
| CN110736580B (en) * | 2019-10-28 | 2021-04-27 | 中国科学院合肥物质科学研究院 | Hydrogen-dry air-water vapor explosion pressure testing device and testing method |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180302 |
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| WD01 | Invention patent application deemed withdrawn after publication |