CN208999286U - Testing device for combustible gas ignited by friction spark - Google Patents
Testing device for combustible gas ignited by friction spark Download PDFInfo
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- CN208999286U CN208999286U CN201821811034.9U CN201821811034U CN208999286U CN 208999286 U CN208999286 U CN 208999286U CN 201821811034 U CN201821811034 U CN 201821811034U CN 208999286 U CN208999286 U CN 208999286U
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- 238000012360 testing method Methods 0.000 title claims abstract description 45
- 239000002360 explosive Substances 0.000 claims abstract description 46
- 238000012544 monitoring process Methods 0.000 claims abstract description 17
- 238000004880 explosion Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 10
- 239000007789 gas Substances 0.000 claims description 42
- 239000002737 fuel gas Substances 0.000 claims description 15
- 239000011261 inert gas Substances 0.000 claims description 14
- 230000033001 locomotion Effects 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 8
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 19
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- 239000003245 coal Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
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- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
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- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
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Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The utility model discloses a friction spark ignited combustible gas testing device, which comprises a friction unit, a friction part and a friction sample, wherein the friction part and the friction sample are mutually contacted; an explosion unit including an explosion container in which a combustible gas is detonated by a spark generated by friction of the friction member against the friction sample; and the monitoring unit comprises a sensing part and a display part, wherein the sensing part is arranged in the explosion container and is connected with the display part. The utility model provides a friction spark detonating combustible gas testing arrangement can test the ignition rate of the spark of different kinds of sample friction production under inflammable and explosive environment, can detect the energy of friction spark, production process and the explosion process simultaneously, has compensatied only the limitation of paying attention to friction spark temperature measurement in the current research.
Description
Technical field
The utility model relates to industrial explosion protection technology fields more particularly to a kind of friction spark igniting gas to survey
Trial assembly is set.
Background technique
There is biggish Fire risk analysis in coal mine/natural gas petroleum industry production management process.Methane belongs to easily
Combustion things matter is the typical products of oil and natural gas industry.Hydrogen is widely used gas in gas industry, and is stone
One of most volatile product in oil and gas industry.In order to effectively prevent methane/hydrogen fire explosion, on the one hand
The fuel gas mixed vapour for avoiding combustible material in production and operation " evaporating, emitting, dripping or leaking of liquid or gas " to be formed as far as possible, on the other hand needs booster injection
Monitoring to incendiary source.Fire explosion background based on oil and natural gas industry, it should be noted that hit and friction (rubs
Wipe spark) it is one of main forms of incendiary source.And in actual operation, electrical equipment, metal material and tool by
It is more much bigger than electric spark to hit a possibility that friction generates spark.
Such as 1937~1961 years, 1018 fire damp explosion accidents occurred altogether for Britain, wherein being for 209 times since machinery rubs
Wipe spark caused by, 1954~nineteen fifty-five from gaseous mine getting working face withdrawn from electric coal drill made of nearly 10,000 light-alloys,
Set cap.In conclusion friction spark igniting gas risk between metal material in coal mine/natural gas petroleum industry
It can not be ignored, friction spark mechanism of production need to be disclosed by theoretical and experimental study, grasp fire-proof and explosion-proof effective ways.
Current countries many in the world attach great importance to mechanical friction spark safety problem, to light alloy material, rock material
Material has carried out a large amount of experimental study.By literature search and analysis, current research, which is concentrated mainly on, prevents friction spark from drawing
The research of quick-fried coal mine gas, such as document: home and abroad colliery metal material friction spark safety experimental study and technology development
Mining safety and environmental protection, (huge extensively rigid etc., 2014,41 (4): 114-117.).It safety in Mines Research Establishment, Britain and safe and healthy holds
A large number of experiments has been done to light-alloy application risk in the security laboratory of committee meeting subordinate, first proposed light-alloy and rust steel friction
" thermit reaction " is theoretical, in addition, titanium elements and hard object are hit in light-alloy or friction is also easy to produce high temperature clast, is easy to ignite
A possibility that gas, titaniferous amount and collision energy improve, light methane in light-alloy, significantly improves.And provide: except few in number
And outside rescue instrument and meter and the instrument of scientific research made of the light-alloy that must be used, gaseous mine getting working face is not
The new equipment of light-alloy manufacture must be continued to use.Forbid using light-alloy within the getting working face 300m with gas danger
The equipment of manufacture.In basic research field, temperature characterisitic is lighted when for friction spark actuation gas and has carried out theoretical research (week
Heart power etc., when friction spark actuation gas, light temperature characterisitic theoretical research Xiangtan Mining Industry College journal, and 2014；Zhang Jinghang
Deng the test and research explosive atmosphere electrical explosion proof technology of friction spark and light-alloy magnesium content relationship, 1994).
It is investigated by document and patent, is studied for mechanical friction spark between metal, do not establish unification temporarily both at home and abroad
Testing standard method and apparatus.Ongoing research area is concentrated mainly on friction spark pattern and temperature measuring and friction spark
Act on lower coal mine gas explosive characteristic analysis.It is currently able to realize the test of mechanical friction spark temperature and spark pattern, but nothing
The monitoring and measurement of method realization friction spark electricity.
In order to achieve this goal, it is necessary to solve following task: by the monitoring and measurement to friction spark electricity, taking off
Show the influence that type/way of contact of metal material forms metal friction spark.
Summary of the invention
The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce it is some preferably
Embodiment.It may do a little simplified or be omitted to keep away in this part and the summary of the description of the application and utility model title
The purpose for exempting to make this part, abstract of description and utility model title is fuzzy, and this simplification or omission cannot be used for limitation originally
The range of utility model.
In view of above-mentioned problems of the prior art, the utility model is proposed.
Therefore, the utility model aim is to provide a kind of friction spark igniting gas test device, which can
Friction spark electricity is monitored and is measured, discloses what type/way of contact of metal material formed metal friction spark
It influences.
In order to solve the above technical problems, the utility model provides the following technical solutions: a kind of friction spark detonation
Body test device comprising, friction element, including friction member, the friction member generate contact friction to rubbed sample；It is quick-fried
Fried unit, including explosive container, the spark that fuel gas generates rubbed sample friction by the friction member, in institute
It states in explosive container and ignites；And monitoring unit, including sensing element and display unit, the sensing element are set to described
In explosive container, it is connected with the display unit.
A kind of preferred embodiment as friction spark igniting gas test device described in the utility model, in which: institute
Stating friction element further includes driving part and transmission parts, and the driving part passes through the transmission parts and the friction member
It is connected, controls the friction velocity of the friction member Yu the rubbed sample.
A kind of preferred embodiment as friction spark igniting gas test device described in the utility model, in which: institute
It states rubbed sample to be set on the bracket component that can be moved, the rubbed sample and institute is made by the movement bracket component
Friction member contact is stated, friction generates spark.
A kind of preferred embodiment as friction spark igniting gas test device described in the utility model, in which: institute
Stating sensing element includes friction spark sensor and pressure sensor, and the friction spark sensor detects the friction element and produces
Raw friction spark electricity, the pressure that the pressure sensor generates explosion are tested, and the data measured pass through described aobvious
Show that component reflects.
A kind of preferred embodiment as friction spark igniting gas test device described in the utility model, in which: institute
Stating exploding unit further includes ignition part, and the ignition part is set in the explosive container, is connected with transformer, when described
When spark fails to light the fuel gas, opens the ignition part switch and the fuel gas is ignited.
A kind of preferred embodiment as friction spark igniting gas test device described in the utility model, in which: also
Including sealing unit, the sealing unit includes pressure gauge, vacuum meter and vacuum pump, is connected with the explosive container.
A kind of preferred embodiment as friction spark igniting gas test device described in the utility model, in which: institute
Stating monitoring unit further includes high-speed motion picture camera, and transparent window is equipped at the tank body of the explosive container, and the high-speed motion picture camera is logical
Cross the transparent window record blast process.
A kind of preferred embodiment as friction spark igniting gas test device described in the utility model, in which: institute
Stating monitoring unit further includes computer, and the computer is for receiving test data and being analyzed.
A kind of preferred embodiment as friction spark igniting gas test device described in the utility model, in which: also
Including inert gas, the inert gas storage is connected in inert gas pressure tank, and with the explosive container.
A kind of preferred embodiment as friction spark igniting gas test device described in the utility model, in which: institute
Stating explosive container includes container cover, is connect by spiral with the explosive container.
The utility model has the beneficial effects that the device can replace the material category of friction member, so that test is not of the same race
Catches fire rate of the friction spark under inflammable and explosive environment that class friction member generates, at the same be able to detect friction spark energy,
Generation process and blast process compensate for the limitation that friction spark temperature measuring is concerned only in current research.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the utility model
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.Wherein:
Fig. 1 is a kind of overall structure for embodiment that the utility model friction spark igniting gas test device provides
Schematic diagram.
It is integrally tied in another embodiment that Fig. 2 provides for the utility model friction spark igniting gas test device
The schematic diagram of structure.
Specific embodiment
It is attached below with reference to specification to keep the above objects, features, and advantages of the utility model more obvious and easy to understand
Figure is described in detail specific embodiment of the present utility model.
Many details are explained in the following description in order to fully understand the utility model, but this is practical new
Type can also be implemented using other than the one described here other way, and those skilled in the art can be without prejudice to this reality
With doing similar popularization in the case where novel intension, therefore the utility model is not limited by the specific embodiments disclosed below.
Secondly, " one embodiment " or " embodiment " referred to herein, which refers to, may be included at least one reality of the utility model
A particular feature, structure, or characteristic in existing mode." in one embodiment " that different places occur in the present specification is not
The same embodiment is referred both to, nor the individual or selective embodiment mutually exclusive with other embodiments.
In order to study the friction catches fire rate of different metal under inflammable and explosive environment, the utility model one embodiment is provided
A kind of test device of metal friction spark igniting gas (gases such as hydrogen, methane), to realize spin friction between metal
When friction spark electricity monitoring and measurement.Referring to Fig. 1, the utility model friction spark igniting gas test device includes
Friction element 100, exploding unit 200 and monitoring unit 300.
In the present embodiment, friction element 100 includes friction member 102, and friction member 102 can be by rubbed sample
101 contact frictions generate spark, and then are used for igniting gas 202.Exploding unit 200 includes explosive container 201, flammable
The spark that gas 202 generates the friction of rubbed sample 101 by friction member 102, ignites in explosive container 201.Monitoring is single
Member 300 includes sensing element 301 and display unit 302, and sensing element 301 is set in explosive container 201, with display unit
302 are connected.
Specifically, rubbed sample 101 can use metal sample, friction member 102 can use rosette, rotation
Rosette carries out contacting friction generation spark with metal sample.Explosive container 201 can use steel circular cylindrical container, one
As set volume be 60 liters；And fuel gas 202 can be using one or more of methane, hydrogen or acetylene, preferably, can
Combustion gas body is stored in pressurized tank, and pressurized tank is connected with explosive container, fuel gas is injected explosion when test according to demand and held
In device, inflammable and explosive environment is formed.Sensing element 301 can use pressure sensor and friction spark sensor, examine respectively
It surveys and the pressure and friction spark electricity in monitoring explosive container 201.Display unit 302 uses oscillograph, preferably, using
American National instrument DSO9104A.
It referring to fig. 2, is second embodiment of the utility model, which is different from upper one embodiment: rubbing
Wiping unit 200 further includes driving part 103 and transmission parts 104, and driving part 103 passes through transmission parts 104 and friction member
102 are connected, and control the friction velocity of friction member 102 and rubbed sample 101, and rubbed sample 101 is set to and can move
On bracket component 105, by the movement bracket component 105 rubbed sample 101 is connect with the friction member 102
Touching, friction generate spark.
Specifically, driving part 103 uses motor, the revolving speed of motor is adjustable, is adjusted by changing motor speed
The friction velocity of rubbed sample 101 and friction member 102.
In this embodiment, sensing element 301 includes friction spark sensor 301a and pressure sensor 301b,
Friction spark sensor 301a detects the friction spark electricity that friction element 100 generates, and pressure sensor 301b generates explosion
Pressure detected, the data measured are reflected by display unit 302.
Exploding unit 200 further includes ignition part 203, is set in explosive container 201, is connected with transformer 204, is become
Depressor can be directly connected to standard voltage source, if within a certain period of time, the friction spark that friction member 100 generates fails to light can
When combustion gas body 202, opens the switch of ignition part 203 and ignite fuel gas 202.
Friction spark igniting gas test device further includes sealing unit 400.In the present embodiment, sealing unit
400 include pressure gauge 401, vacuum meter 402 and vacuum pump 403, is connected with explosive container 201.Wherein pressure gauge 401 and vacuum
Meter 402 is able to detect and shows pressure size and vacuum degree in explosive container 201, opens vacuum pump 403 and switchs, vacuum pump
403 can be evacuated explosive container 201 to change its internal vacuum degree.
Monitoring unit 300 further includes high-speed motion picture camera 303 and computer 304, specifically, at the tank body of explosive container 201
Equipped with transparent window, high-speed motion picture camera 303 records blast process by the transparent window, observation point after being used to test
Analysis, computer 304 can receive the test data of all parts in monitoring unit 300, and carry out Macro or mass analysis.
Exploding unit 200 further includes inert gas 205, which is stored in inert gas pressure tank 206, and with explosion
Container 201 is connected, and coupling part is equipped with valve control inert gas 205 and enters explosive container 201, and inert gas 206 can be
Exploding test start before check explosive container 201 air-tightness, after clear up explosive container 201, it is ensured that the safety of test.
It is tested using the utility model friction spark igniting gas test device, specific test process are as follows:
Prepare the rubbed sample 101 and friction member 102 of different materials, opens container cover 207, friction element 200 is installed.It checks
The air-tightness of device tightens container cover 207, and all parts junction confirmation being connected with explosive container 201 securely, is opened
The valve of inert gas pressure tank 206 and 201 junction of explosive container, inert gas 205 is filled into explosive container 201,
401 registration of pressure gauge is observed, until smearing connecting portion everywhere with suds after convenient pressure (0.2MPa), checks a whole set of dress
The air-tightness set.
After confirming that the air-tightness of package unit is good, vacuum pump 403 is opened until the vacuum degree in explosive container 201 is
When 40kPa, vacuum pump 403 is closed, fuel gas 202 is injected into explosive container 201, observes pressure gauge 401, it is quick-fried to its display
When pressure is close to specified pressure in fried container 201, slow down the injection flow of fuel gas 202, when pressure in explosive container 201
Specified pressure is reached, can stop injecting fuel gas 202.
The all parts for opening monitoring unit 300 open driving part 103 after all parts all stable operation, adjust
The rotation speed of section friction member 102 makes it be rubbed with rubbed sample 101 and generates friction spark, at this time display unit
302 can stablize the measurement data that display changes over time, including friction spark ability and pressure, and high-speed motion picture camera 303 records
Friction spark transient state generates process, and after certain delay time, detonation takes place in the fuel gas 202 in explosive container 201
Phenomenon, high-speed motion picture camera 303 trigger camera shooting again, until experiment finishes.In the process, if within a certain period of time, friction is fiery
Flower fails to light fuel gas 202, then is lighted using ignition part 203.
After experiment, the component of each unit is closed, opens inert gas pressure tank 206 and 201 junction of explosive container
Valve, purge explosive container 201 with inert gas 205, after device purging is clean, can prepare to test next time.
It should be noted that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although reference
The utility model is described in detail in preferred embodiment, those skilled in the art should understand that, it can be to this reality
It is modified or replaced equivalently with novel technical solution, without departing from the spirit and scope of the technical scheme of the present invention,
It should all cover in the scope of the claims of the utility model.
Claims (10)
1. a kind of friction spark igniting gas test device, it is characterised in that: including,
Friction element (100), including friction member (102), the friction member (102) generate contact to rubbed sample (101)
Friction；
Exploding unit (200), including explosive container (201), fuel gas (202) is by the friction member (102) to described
The spark that rubbed sample (101) friction generates, ignites in the explosive container (201)；And
Monitoring unit (300), including sensing element (301) and display unit (302), the sensing element (301) are set to institute
It states in explosive container (201), is connected with the display unit (302).
2. friction spark igniting gas test device as described in claim 1, it is characterised in that: the friction element
It (100) further include driving part (103) and transmission parts (104), the driving part (103) passes through the transmission parts
(104) it is connected with the friction member (102), controls the friction of the friction member (102) Yu the rubbed sample (101)
Speed.
3. friction spark igniting gas test device as claimed in claim 1 or 2, it is characterised in that: the friction sample
Product (101) are set on the bracket component (105) that can be moved, and make the friction by the movement bracket component (105)
Sample (101) is contacted with the friction member (102), and friction generates spark.
4. friction spark igniting gas test device as claimed in claim 1 or 2, it is characterised in that: the detecting means
Part (301) includes friction spark sensor (301a) and pressure sensor (301b), friction spark sensor (301a) inspection
Survey the friction element (100) generation friction spark electricity, the pressure sensor (301b) to explosion generate pressure into
Row detection, the data measured are reflected by the display unit (302).
5. friction spark igniting gas test device as claimed in claim 3, it is characterised in that: the exploding unit
It (200) further include ignition part (203), the ignition part (203) is set in the explosive container (201), with transformer
(204) it is connected, when the spark fails to light the fuel gas (202), opens the ignition part (203) switch to institute
Fuel gas (202) is stated to be ignited.
6. claim 1,2 or 5 it is any as described in friction spark igniting gas test device, it is characterised in that: also wrap
It includes,
Sealing unit (400), the sealing unit (400) include pressure gauge (401), vacuum meter (402) and vacuum pump (403),
It is connected with the explosive container (201).
7. claim 1,2 or 5 it is any as described in friction spark igniting gas test device, it is characterised in that: it is described
Monitoring unit (300) further includes,
High-speed motion picture camera (303) is equipped with transparent window, the high-speed motion picture camera (303) at the tank body of the explosive container (201)
Blast process is recorded by the transparent window.
8. friction spark igniting gas test device as claimed in claim 7, it is characterised in that: the monitoring unit
(300) further include,
Computer (304), the computer (304) is for receiving test data and being analyzed.
9. the friction spark igniting gas test device as described in claim 1,2,5 or 8 are any, it is characterised in that: also
Including inert gas (205), the inert gas (205) is stored in inert gas pressure tank (206), and is held with the explosion
Device (201) is connected.
10. friction spark igniting gas test device as claimed in claim 9, it is characterised in that: the explosive container
(201) include container cover (207), connect by spiral with the explosive container (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821811034.9U CN208999286U (en) | 2018-11-05 | 2018-11-05 | Testing device for combustible gas ignited by friction spark |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821811034.9U CN208999286U (en) | 2018-11-05 | 2018-11-05 | Testing device for combustible gas ignited by friction spark |
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| Publication Number | Publication Date |
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| CN208999286U true CN208999286U (en) | 2019-06-18 |
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| CN201821811034.9U Expired - Fee Related CN208999286U (en) | 2018-11-05 | 2018-11-05 | Testing device for combustible gas ignited by friction spark |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111562213A (en) * | 2020-06-18 | 2020-08-21 | 大连理工大学 | Metal friction spark energy evaluation device and method under variable pressure of inert atmosphere |
| CN113029932A (en) * | 2019-12-25 | 2021-06-25 | 应急管理部化学品登记中心 | Friction sensitivity test device with intelligent spark detector |
| CN114235895A (en) * | 2021-12-31 | 2022-03-25 | 中煤科工集团沈阳研究院有限公司 | Confined space methane hydrogenation explosion characteristic test platform and test method |
-
2018
- 2018-11-05 CN CN201821811034.9U patent/CN208999286U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029932A (en) * | 2019-12-25 | 2021-06-25 | 应急管理部化学品登记中心 | Friction sensitivity test device with intelligent spark detector |
| CN111562213A (en) * | 2020-06-18 | 2020-08-21 | 大连理工大学 | Metal friction spark energy evaluation device and method under variable pressure of inert atmosphere |
| CN111562213B (en) * | 2020-06-18 | 2021-07-09 | 大连理工大学 | Method for evaluating metal friction spark energy under variable pressure of inert atmosphere |
| CN114235895A (en) * | 2021-12-31 | 2022-03-25 | 中煤科工集团沈阳研究院有限公司 | Confined space methane hydrogenation explosion characteristic test platform and test method |
| CN114235895B (en) * | 2021-12-31 | 2024-01-30 | 中煤科工集团沈阳研究院有限公司 | Test platform and test method for methane hydrogenation explosion characteristics in limited space |
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