CN1603806A - Spontaneous heating hazard testing device for chemical articles - Google Patents
Spontaneous heating hazard testing device for chemical articles Download PDFInfo
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- CN1603806A CN1603806A CN 200410036212 CN200410036212A CN1603806A CN 1603806 A CN1603806 A CN 1603806A CN 200410036212 CN200410036212 CN 200410036212 CN 200410036212 A CN200410036212 A CN 200410036212A CN 1603806 A CN1603806 A CN 1603806A
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Abstract
This invention is a chemical self-heating damage test apparatus, which comprises computer, display, and digital control temperature-constant case with main control meter. It is to put one to ten pieces of platinum resistance probes to detect inner and outer temperatures of the chemicals in limited space of the case; then it is electrically connected with the monitor meter and paperless recorder; then it is separately connected with computer through converter communication interface; final to send the temperature signals of the chemicals monitored to the computer and its display.
Description
Technical field
The present invention relates to the improvement of numerical control baking oven equipment, specifically is a kind of chemical substance self-heating harm proving installation.It belongs to the chemical substance technical field of measurement and test.
Background technology
According to the requirement in the self-heating substance testing method in " the United Nations's freight transportation recommendation-test and standard " (hereinafter to be referred as " test and standard ").According to the situation of literature search and market survey, there is no similar mechanism can test the self-heating property of chemicals in strict accordance with " test and standard " at present, does not also have commercial chemicals self-heating harm testing apparatus both at home and abroad.The numerical control baking oven of prior art generally is provided with heating tube, circulating fan, temperature sensor and realize to heat up, the master instrument of temperature control, therefore the self-heating property test of doing according to " test and standard " regulation that it can not be finished chemicals is necessary to transform and perfect.
Summary of the invention
The objective of the invention is to overcome the defective of above-mentioned numerical control baking oven, design a kind of isolated plant that is used for measuring the self-heating harm of chemicals.Its principle is by measuring the chemicals temperature inside situation of change of certain volume under long-time isoperibol, determining the self-heating harmfulness of chemicals.This device is to the volume of specimen, the bearing mode of sample, and technical requirements such as temperature fluctuation range are finished test to the self-heating harmfulness of chemicals by " test and standard " to the requirement in the self-heating substance testing method fully.
Task of the present invention is realized by following technical scheme, has developed a kind of chemical substance self-heating harm proving installation, and it comprises: computing machine and display thereof are provided with heating tube, circulating fan, the digital control constant temperature case of temperature sensor and master instrument.In the finite space of this constant temperature oven, be provided with 1---10 pieces of platinum resistance probes of measuring the chemical substance internal and external temperature, all this probes are electrically connected on monitoring device and recording instrument without paper more respectively; Described master instrument, monitoring device and recording instrument without paper by the converter communication interface, are connected to computing machine, and the chemical substance internal and external temperature signal that monitors are passed to computing machine and display thereof respectively.
Described platinum resistance probe, its position that is arranged in this constant temperature oven finite space be the volume, bearing mode with tested sample and the volume that fixes on tested sample inside and appearance, promptly all this probes is provided with position or effectively fixing or effective activity.
Described platinum resistance probe, its all this probe are that the top boxboard from this constant temperature oven is provided with in its space; Be the contact position of all this probes or the profile that constitutes cone, or constitute cylindrical profile, or constitute the profile of spherosome, or constitute the profile of square, or the profile of formation rectangular parallelepiped, wherein the inside center at each profile must be provided with one piece of this probe contacts.
Described digital control constant temperature case also is provided with high temperature alarm mechanism, by the temperature inside the box sensor the signal that temperature reaches alarming value is passed to master instrument, and this instrument is sent alerting signal again, disconnects relay, makes the heating tube outage.
Described digital control constant temperature case also is provided with pressure relief mechanism and explosion-proof mechanism in the case when making this case internal pressure up to setting value owing to the burning of tested chemical substance or blast.
The invention has the advantages that: owing in the finite space of this constant temperature oven, be provided with 1---10 pieces of platinum resistance probes of measuring the chemical substance internal and external temperature, all this probes are electrically connected on monitoring device and recording instrument without paper more respectively; Described master instrument, monitoring device and recording instrument without paper by the converter communication interface, are connected to computing machine, and the chemical substance internal and external temperature signal that monitors are passed to computing machine and display thereof respectively.Can accurately control environment temperature in the test digital control constant temperature case and the tested material inside and outside temperature in this constant temperature oven of real time record like this, thus judge tested material from thermal hazard.Because from the platinum resistance probe that the top boxboard of this constant temperature oven is provided with in its space, its position that is arranged in this constant temperature oven finite space be the volume, bearing mode with tested sample and the volume that fixes on tested sample inside and appearance.All this probes position or effectively fixing is set, or it is effectively movable, be the contact position of all this probes or the profile that constitutes cone, or constitute cylindrical profile, or the profile of formation spherosome, or the profile of formation square, or the profile of formation rectangular parallelepiped, wherein the inside center at each profile must be provided with one piece of this probe contacts.So just make that no matter the volume of tested material sample varies in size, this device can effectively be realized centralized control with tested material inside and outside temperature.Just on-the-spot real-time working condition picture can be browsed very easily on computers, and various data and curvilinear motion situation can be observed.When tested material overtemperature, can report to the police until automatic termination test.This device is because with master instrument, monitoring device and recording instrument without paper are respectively by the converter communication interface, be connected to computing machine, the real-time data acquisition that has by computer system software and record, historical record, data query and printing, the multiple function of Long-distance Control, friendly interface, simple to operate, and the chemical substance internal and external temperature signal that monitors handled, can adopt manual control and control the mode that combines automatically, both can manually boot at the scene and termination test, also can start and termination test by the Control Software on the remote computer.The digital control constant temperature case of this device also is provided with high temperature alarm mechanism, by the temperature inside the box sensor the signal that temperature reaches alarming value is passed to master instrument, and this instrument is sent alerting signal again, disconnects relay, makes the heating tube outage.The digital control constant temperature case of this device also is provided with pressure relief mechanism and explosion-proof mechanism in the case when making this case internal pressure up to setting value owing to the burning of tested chemical substance or blast, so also have pressure release, explosion prevention function.
Accompanying drawing and embodiment
Embodiments of the invention further specify as follows in conjunction with the accompanying drawings:
Fig. 1 is the circuit structure and the equipment flowsheet synoptic diagram of chemical substance self-heating harm proving installation.
Fig. 2 partly cuts open figure for the digital control constant temperature box structure master of chemical substance self-heating harm proving installation looks.
Fig. 3 is the digital control constant temperature box structure left side cut-open view of chemical substance self-heating harm proving installation.
Fig. 4 is the digital control constant temperature box structure vertical view of chemical substance self-heating harm proving installation.
Referring to Fig. 1---4, the chemical substance self-heating harm proving installation of making, it comprises: computing machine 1 and display 3 thereof are provided with heating tube 13, circulating fan 14, PT100 type platinum resistance temperature sensor 2. with the digital control constant temperature case 12 of LU-960M type master instrument (P1) 7.1., 3., 4., 5., 6., 7. the PT100 type platinum resistance that six pieces of test chemical substance (not drawing among the figure) internal and external temperatures are set in the finite space of this constant temperature oven 12 pops one's head in, and 1., 3., 4., 5., 6., 7. all this probes are electrically connected on LU-960M type monitoring device (P2) 8 and LU-960M type recording instrument without paper (P3) 11 more respectively; Described master instrument (P1) 7, monitoring device (P2) 8 and recording instrument without paper (P3) 11 are respectively by two RS485 type converters 4,5 communication interface is connected to computing machine 1, and the chemical substance internal and external temperature signal that monitors is passed to computing machine 1 and display 3 thereof.
Described platinum resistance probe 1., 3., 4., 5., 6., 7., its position that is arranged in these constant temperature oven 12 finite spaces be the volume, bearing mode with tested chemical substance (not drawing among the figure) and the volume that fixes on tested chemical substance (not drawing among the figure) inside and appearance, be all this probes 1., 3., 4., 5., 6., 7. position or effectively fixing is set, or effectively movable.
1., 3., 4., 5., 6., 7. described platinum resistance probe is that the top boxboard from this constant temperature oven 12 is provided with in its space; Be all this probes 1., 3., 4., 5., 6., contact position 7. or constitute the profile of cone, or constitute cylindrical profile, or the profile of formation spherosome, or the profile of formation square, or the profile of formation rectangular parallelepiped, wherein the inside center at each profile must be provided with one piece of this probe contact 1..
Described digital control constant temperature case 12 also is provided with high temperature alarm mechanism 2, and the signal that 2. temperature is reached alarming value by the temperature inside the box sensor is passed to master instrument 7, and this instrument 7 is sent alerting signal again, disconnects relay 9, makes heating tube 13 outages.
Described digital control constant temperature case 12 also is provided with pressure relief mechanism 15 and explosion-proof mechanism 16 in the case when making these constant temperature oven 12 internal pressures up to setting value owing to the burning of tested chemical substance or blast.
The concrete course of work of this chemical substance self-heating harm proving installation is as follows:
When device of the present invention enters the test ready state.LU-960M type master instrument (P1) 7 user instruction (user can on the instrument or setting on the computing machine 1) control under, the conducting of output trigger pip control controllable silicon (SCR) 6, heating tube 13 and circulating fan 14 energisings, heating tube 13 makes space temperature rising in this constant temperature oven 12, and the startup of circulating fan 14 makes each maintenance temperature equalization in the case 12.In this constant temperature oven 12 tested chemical substance is housed, and is equipped with many platinum resistance probes 1., 3., 4., 5., 6., 7..Wherein 1. the platinum resistance probe is used to measure tested chemical substance internal temperature.1., 3., 4., 5., 6., 7. the platinum resistance probe is used to monitor the tested chemical substance appearance temperature contrast in this constant temperature oven 12, each point temperature form with data on LU-960M type recording instrument without paper (P3) 11 reflects, and this recording instrument without paper 11 also passes to computing machine 1 by the communication interface of converter 4 with temperature signal simultaneously.When the display 3 of excessive temperature differentials computer-chronograph 1 by alarm 2 and computing machine 1 provides the sound and light alarm signal.2. the platinum resistance probe is used for temperature in this constant temperature oven 12,2. this platinum resistance probe gives master instrument (P1) 7 by converter 5 with signal feedback with the temperature variation that records: when the temperature in the constant temperature oven that records is lower than design temperature, controllable silicon (SCR) 6 continues conducting, give heating tube 13 power supplies, temperature continues to rise in this constant temperature oven 12.Master instrument (P1) 7 adjusts the control trigger pip automatically according to feedback signal, thereby automatically temperature accuracy in this constant temperature oven 12 is controlled on user's setting value.Simultaneously, master instrument (P1) 7 also feeds back to computing machine 1 by the communication interface of RS485 type converter 5 with measuring-signal, and the form of this variation with histogram reflected on the display 3 of computing machine 1 intuitively.1. platinum resistance probe in this constant temperature oven 12 inserts tested chemical substance (not drawing among the figure) inside, utilizes these constant temperature oven 12 interior steady temperatures that tested chemical substance (not drawing among the figure) is heated.The temperature variation that 1. this platinum resistance probe records is converted to resistance signal again and feeds back to monitoring device (P2) 8 through the communication interface of converter 5.The data that this monitoring device (P2) 8 records are except that its instrument shows, and also the communication interface by converter 5 feeds back to computing machine 1, shows with various forms (variation of fluid column, real-time curve etc.).
When puncturing conductings as controllable silicon (SCR) 6 owing to unexpected; the control that master instrument (P1) 7 is lost it; heating tube 13 continues to such an extent that electric these constant temperature oven 12 interior temperature that make rise; when platinum resistance pops one's head in that 2. temperature reaches alarming value (can be set by the user); master control instrument (P1) 7 can send alerting signal; relay (R1) 9 is disconnected, and heating tube 13 outages reach the protection purpose.
When self-heating takes place tested chemical substance (not drawing among the figure), cause platinum resistance probe temperature 1. to exceed certain limit (this temperature margin is set up on their own by the user) than the environment temperature in this constant temperature oven 12, monitoring device (P1) 8 sends alerting signal, relay (R2) 10 actions stop to heating tube 13 power supplies.If because test substances burning or blast make when these constant temperature oven 12 internal pressures reach setting value that explosion-proof mechanism 16 starts in the case, carries out pressure release by pressure relief mechanism 15, reaches the protection purpose.Simultaneously, alerting signal feeds back to computing machine 1, starts alarm 2, sends alerting signal, reminds the operator to adjust.
Those of ordinary skill in the art can understand, and in protection scope of the present invention, makes amendment for the foregoing description, and it all is possible adding and replacing, and it does not all exceed protection scope of the present invention.
Claims (5)
1, a kind of chemical substance self-heating harm proving installation, it comprises: computing machine and display thereof, be provided with heating tube, circulating fan, the digital control constant temperature case of temperature sensor and master instrument, it is characterized in that: in the finite space of this constant temperature oven, be provided with 1---the platinum resistance probe of 10 pieces of test chemical substance internal and external temperatures, all this probes are electrically connected on monitoring device and recording instrument without paper more respectively; Described master instrument, monitoring device and recording instrument without paper by the converter communication interface, are connected to computing machine, and the chemical substance internal and external temperature signal that monitors are passed to computing machine and display thereof respectively.
2, according to the described chemical substance self-heating harm of claim 1 proving installation, it is characterized in that: described platinum resistance probe, its position that is arranged in this constant temperature oven finite space be the volume, bearing mode with tested chemical substance and the volume that fixes on tested chemical substance inside and appearance, be all this probes position or effectively fixing is set, or effectively movable.
3, according to the described chemical substance self-heating of claim 2 harm proving installation, it is characterized in that: described platinum resistance probe, its all this probe are that the top boxboard from this constant temperature oven is provided with in its space; Be the contact position of all this probes or the profile that constitutes cone, or constitute cylindrical profile, or constitute the profile of spherosome, or constitute the profile of square, or the profile of formation rectangular parallelepiped, wherein the inside center at each profile must be provided with one piece of this probe contacts.
4, according to the described chemical substance self-heating harm of claim 1 proving installation, it is characterized in that: described digital control constant temperature case, also be provided with high temperature alarm mechanism, by the temperature inside the box sensor the signal that temperature reaches alarming value is passed to master instrument, this instrument is sent alerting signal again, disconnect relay, make the heating tube outage.
5, according to the described chemical substance self-heating harm of claim 1 proving installation, it is characterized in that: described digital control constant temperature case also is provided with pressure relief mechanism and explosion-proof mechanism in the case when making this case internal pressure up to setting value owing to the burning of tested chemical substance or blast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100362121A CN100420938C (en) | 2004-11-03 | 2004-11-03 | Spontaneous heating hazard testing device for chemical articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100362121A CN100420938C (en) | 2004-11-03 | 2004-11-03 | Spontaneous heating hazard testing device for chemical articles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1603806A true CN1603806A (en) | 2005-04-06 |
| CN100420938C CN100420938C (en) | 2008-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100362121A Expired - Fee Related CN100420938C (en) | 2004-11-03 | 2004-11-03 | Spontaneous heating hazard testing device for chemical articles |
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| CN (1) | CN100420938C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192924A (en) * | 2010-03-15 | 2011-09-21 | 中华人民共和国上海出入境检验检疫局 | Self-heating test device for flammable solids of dangerous materials |
| CN103604825A (en) * | 2013-10-17 | 2014-02-26 | 中国石油化工股份有限公司 | Method for testing self-reaction mixture thermal compatibility |
| CN103969281A (en) * | 2014-04-11 | 2014-08-06 | 中国石油化工股份有限公司 | Device for rapidly screening self-heating danger of chemicals |
| CN105987928A (en) * | 2015-02-11 | 2016-10-05 | 中国石油化工股份有限公司 | Chemical thermal decomposition fast tester |
| CN111896580A (en) * | 2020-07-31 | 2020-11-06 | 上海化工研究院有限公司 | A temperature sensing pressure sensing combined type magnetism safety door holder for hazardous materials test box |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110726753A (en) * | 2018-07-16 | 2020-01-24 | 广州合成材料研究院有限公司 | Self-heating material experimental device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4130016A (en) * | 1977-08-08 | 1978-12-19 | The Dow Chemical Company | Adiabatic calorimeter apparatus and method for measuring the energy change in a chemical reaction |
| US4439048A (en) * | 1978-05-15 | 1984-03-27 | The Dow Chemical Company | Accelerating rate calorimeter and method of operation |
| CN2103136U (en) * | 1991-06-26 | 1992-04-29 | 郭小秦 | Multi-point temp. measured indicator |
| CN1353308A (en) * | 2000-11-09 | 2002-06-12 | 中华人民共和国天津出入境检验检疫局 | Oxidizing substance tester of dangerous articles |
| CN2738248Y (en) * | 2004-11-03 | 2005-11-02 | 中国石油化工股份有限公司 | Self-heating damage tester for chemical articles |
-
2004
- 2004-11-03 CN CNB2004100362121A patent/CN100420938C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192924A (en) * | 2010-03-15 | 2011-09-21 | 中华人民共和国上海出入境检验检疫局 | Self-heating test device for flammable solids of dangerous materials |
| CN103604825A (en) * | 2013-10-17 | 2014-02-26 | 中国石油化工股份有限公司 | Method for testing self-reaction mixture thermal compatibility |
| CN103604825B (en) * | 2013-10-17 | 2016-06-15 | 中国石油化工股份有限公司青岛安全工程研究院 | The method of testing of self-reactive mixture thermal compatibility |
| CN103969281A (en) * | 2014-04-11 | 2014-08-06 | 中国石油化工股份有限公司 | Device for rapidly screening self-heating danger of chemicals |
| CN105987928A (en) * | 2015-02-11 | 2016-10-05 | 中国石油化工股份有限公司 | Chemical thermal decomposition fast tester |
| CN111896580A (en) * | 2020-07-31 | 2020-11-06 | 上海化工研究院有限公司 | A temperature sensing pressure sensing combined type magnetism safety door holder for hazardous materials test box |
| CN111896580B (en) * | 2020-07-31 | 2023-11-28 | 上海化工研究院有限公司 | Temperature-sensing and pressure-sensing composite magnetic safety door latch for dangerous substance testing box |
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| Publication number | Publication date |
|---|---|
| CN100420938C (en) | 2008-09-24 |
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