CN105136856A - Dust burning explosion tester with temperature-controllable ignition device - Google Patents
Dust burning explosion tester with temperature-controllable ignition device Download PDFInfo
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- CN105136856A CN105136856A CN201510664400.7A CN201510664400A CN105136856A CN 105136856 A CN105136856 A CN 105136856A CN 201510664400 A CN201510664400 A CN 201510664400A CN 105136856 A CN105136856 A CN 105136856A
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Abstract
The invention relates to a dust burning explosion tester with a temperature-controllable ignition device. The dust burning explosion tester mainly solves the problem that an experiment test and an experiment result in the prior art lack fidelity. The dust burning explosion tester with the temperature-controllable ignition device is adopted and comprises a quartz glass tube, thermocouples, an ignition head, a temperature controller, a data collector and a computer. The ignition head is fixed to the bottom of the quartz glass tube and is connected with one end of the temperature controller, the other end of the temperature controller is connected with the computer, one end of at least one thermocouple is inserted into the quarts glass tube, the other end of the thermocouple is connected with a temperature collector, and the temperature collector is connected with the computer. According to the technical scheme that the computer is provided with one multi-channel temperature collector, the problem is well solved, and the dust burning explosion tester can be used for dust burning explosion tests.
Description
Technical field
The present invention relates to a kind of dust with controllable temperature portfire and fire analyzer.
Background technology
Have both at home and abroad in a large amount of enterprises production technology and relate to dust, the industrial accident caused by dust in recent years also happens occasionally.CN201220347525.9 relates to the explosion-proof protective device of a kind of spray for dust suppression equipment, relates to the shielding protection of equipment.This explosion-proof protective device feature comprises base and shell; Described base and shell form a closed cavity jointly, and in this cavity air pressure higher than ambient air outside air pressure.
Portfire is of paramount importance is exactly control ignition energy, and the size of energy can not provided to make regulation to portfire in " VDI2263-1.6 ", this just may cause testing the ignition energy that uses at every turn can difference to some extent, directly affects experimental phenomena and test findings.
The present invention solves this problem targetedly.
Summary of the invention
Technical matters to be solved by this invention is the problem of experimental phenomena and test findings distortion in prior art, provides a kind of dust with controllable temperature portfire newly to fire analyzer.This analyzer is used for dust and fires in mensuration, has experimental phenomena and test findings advantage accurately.
For solving the problem, the technical solution used in the present invention is as follows: a kind of dust with controllable temperature portfire fires analyzer, comprise quartz glass tube, thermopair, igniter head, thermostat, data acquisition unit and computing machine, igniter head is fixed on the bottom of quartz glass tube, and be connected with thermostat one end, the thermostat other end is connected with computing machine, at least one thermopair one end is inserted in quartz glass tube, the other end is connected with Temperature sampler, Temperature sampler is connected with computing machine, and computing machine is equipped with a multichannel temperature collector.
In technique scheme, preferably, by computer software or be used alone digital display liquid crystal thermostat and carry out temperature control.
In technique scheme, preferably, described quartz glass tube is fixed on test tube base.
In technique scheme, preferably, described thermopair quantity is three.
In technique scheme, preferably, described thermostat constant-temperature precision is 1 DEG C.
Principle of the present invention be dust is put into a sealed bottom and bottom with the quartz glass tube of controllable temperature portfire, and to be placed on test tube flat.For recording the situation of change of temperature when dust fires on the position having three thermopairs to be fixed in quartz glass tube to specify.Connect heater wire power supply, heat test is carried out to sample and the situation of change of its temperature under using sensor record, observe dust and whether decomposition occurs fires.
The present invention is the continuous blasting device caused after measuring dust formation compound decomposes, is the special purpose device of the firing property caused after being used for assessing dust formation compound decomposes according to test method design out a set of of " VDI2263 ".The technical requirement that the test method that the present invention meets " VDI2263 " specifies, the present invention is by temperature variation after record dust formation compound decomposes and fires the firing property that (burning) phenomenon judges this material, successively employ flour, cloquintocetmexyl acid, ammonium nitrate carried out repetition test, plant running is stablized, energy is control temperature and log accurately, achieves good technique effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of analyzer of the present invention.
In Fig. 1,1 is thermopair; 2 is quartz glass tube; 3 is igniter head; 4 is Temperature sampler; 5 is computing machine; 6 is thermostat.
Below by embodiment, the invention will be further elaborated, but be not limited only to the present embodiment.
Embodiment
[embodiment 1]
As shown in Figure 1, the dust of controllable temperature portfire fires analyzer and is made up of the quartz glass tube of a sealed bottom, base, three thermopairs, igniter head, digital display liquid crystal thermostat (constant-temperature precision 1 DEG C) and six parts such as multi-channel data acquisition system device and computing machine.Wherein hyaline-quartz pipe, base are customization, thermopair, digital display liquid-crystal controller, Multichannel data acquisition device and computing machine is outsourcing, and igniter head is self design.
Wherein igniter head is fixed on the bottom of quartz glass tube, is connected with digital display liquid crystal thermostat, and digital display liquid crystal thermostat is connected with computing machine, can pass through computer software control ignition temperature, also can be used alone digital display liquid crystal thermostat and carry out temperature control; Three thermopairs are fixed on assigned address (see Fig. 1, the modes such as iron stand can be used to fix), and are connected on computing machine, and computing machine is equipped with a multichannel temperature collector; Quartz glass tube is fixed on test tube base.
Test procedure:
This device need be arranged on and operate with in good ventilation and explosion-protection equipment.
1. according to required test condition, determinand is loaded in quartz glass tube, and be placed on base;
2. switch on power, three thermopairs are fixed on the position of specifying;
3. open digital display liquid crystal thermostat and computing machine, then open the computer recording page, enter temperature real time recording interface;
4. required ignition temperature is set, and sample is heated;
5. observe the temperature variations of sample, check and record sample fire (or burning) situation.
Reset new ignition temperature, repeat aforesaid operations step, until obtain satisfied test findings.
The present invention is by temperature variation after record dust formation compound decomposes and fires the firing property that (burning) phenomenon judges this material, successively employ flour, cloquintocetmexyl acid, ammonium nitrate carried out repetition test, plant running is stablized, can accurate control temperature and log.
Claims (5)
1. one kind fires analyzer with the dust of controllable temperature portfire, comprise quartz glass tube, thermopair, igniter head, thermostat, data acquisition unit and computing machine, igniter head is fixed on the bottom of quartz glass tube, and be connected with thermostat one end, the thermostat other end is connected with computing machine, and at least one thermopair one end is inserted in quartz glass tube, and the other end is connected with Temperature sampler, Temperature sampler is connected with computing machine, and computing machine is equipped with a multichannel temperature collector.
2. fire analyzer with the dust of controllable temperature portfire according to claim 1, it is characterized in that by computer software or be used alone digital display liquid crystal thermostat and carry out temperature control.
3. fire analyzer with the dust of controllable temperature portfire according to claim 1, it is characterized in that described quartz glass tube is fixed on test tube base.
4. fire analyzer with the dust of controllable temperature portfire according to claim 1, it is characterized in that described thermopair quantity is three.
5. fire analyzer with the dust of controllable temperature portfire according to claim 1, it is characterized in that described thermostat constant-temperature precision is 1 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510664400.7A CN105136856A (en) | 2015-10-13 | 2015-10-13 | Dust burning explosion tester with temperature-controllable ignition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510664400.7A CN105136856A (en) | 2015-10-13 | 2015-10-13 | Dust burning explosion tester with temperature-controllable ignition device |
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| CN105136856A true CN105136856A (en) | 2015-12-09 |
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| CN201510664400.7A Pending CN105136856A (en) | 2015-10-13 | 2015-10-13 | Dust burning explosion tester with temperature-controllable ignition device |
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| CN102507648A (en) * | 2011-10-26 | 2012-06-20 | 中国石油化工股份有限公司 | Device for testing heat sensitivity of material in enclosed space |
| CN102818821A (en) * | 2012-08-24 | 2012-12-12 | 中煤科工集团重庆研究院 | Combustible gas explosion feature experiment system in ultralow temperature environment |
| CN102879416A (en) * | 2012-09-26 | 2013-01-16 | 公安部天津消防研究所 | Experiment device and experiment method for gas cloud combustion, explosion simulation and inerting, inhibition |
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Application publication date: 20151209 |
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