CN202033308U - Building material noncombustibility test control system - Google Patents
Building material noncombustibility test control system Download PDFInfo
- Publication number
- CN202033308U CN202033308U CN2011200692841U CN201120069284U CN202033308U CN 202033308 U CN202033308 U CN 202033308U CN 2011200692841 U CN2011200692841 U CN 2011200692841U CN 201120069284 U CN201120069284 U CN 201120069284U CN 202033308 U CN202033308 U CN 202033308U
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- control system
- heating furnace
- voltage regulator
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Abstract
The utility model discloses a building material noncombustibility test control system comprising a heating furnace temperature control system and a data acquisition system; the heating furnace temperature control system comprises a voltage stabilizing power supply, the output end of the voltage stabilizing power supply is connected with the input end of a solid voltage regulator, the anode output end of the solid voltage regulator is connected with a power supply anode input end of the heating furnace, a power supply cathode input end of the heating furnace and the cathode output end of the solid voltage regulator are respectively connected with one pair of main contacts of an alternating current contactor; the data acquisition system comprises a K-type thermocouple arranged in the heating furnace, the signal output end of the K-type thermocouple is connected with the signal input end of a singlechip, and the signal output end of the singlechip is connected with the signal input end of the computer. Compared with the original noncombustibility test control system, the control system enables the temperature inside the heating furnace to be stable, so that the obtained experimental data is more accurate.
Description
Technical field
The utility model technology relates to test temperature data acquisition and precision Control Technology, specifically, is a kind of building materials non-combustibility test control system.
Background technology
Along with the continuous development and the progress of society, various novel building finishing materials are widely used.And these new materials are owing to use various inflammable materials in the production run, thereby have increased a lot of fire safety evaluating hidden danger.For some special occasions, not only can not use inflammable material, but also must use non-automatic incombustible material, so associated materials must pass through laboratory noncombustibility test, could use in the specific occasion as incombustible material.
Building materials non-combustibility test stove uses this control system, is used for finishing the record of adjustment control, data acquisition process and test period of the temperature of process of the test.
Traditional temperature control system generally adopts intelligent temperature controller to carry out temperature controlling and collection, but because the specific (special) requirements of non-combustibility test standard, the electric power that is input to heating furnace in the process of the test definitely can not change, and employing temperature controller control system, in the time of in sample is inserted stove, because heat is transmitted, cold sample must make the temperature in the heating furnace reduce, this moment, temperature controller detected the temperature reduction, will inevitably increase the electric power that is input to heating furnace, in case and sample burns, flame can make the temperature in the heating furnace raise again, surpass the setting value of temperature controller, temperature controller will inevitably reduce the electric power that is input to heating furnace, so that temperature reaches setting value in the stove.That is to say in the process of the test that the electric power that is input to heating furnace is unsettled, or even acute variation, this just must cause the inaccurate of test findings, or even substantial deviation.
Summary of the invention
Goal of the invention: the purpose of this utility model is to address the above problem, provides a kind of and can stablize, control accurately and efficiently furnace temp, and the building materials non-combustibility test control system that temperature data is gathered.
In order to solve the problems of the technologies described above, the utility model has adopted following technical scheme: a kind of building materials non-combustibility test control system, comprise furnace temp control system and data acquisition system (DAS), described furnace temp control system comprises stabilized voltage supply, solid-state voltage regulator and A.C. contactor, the output terminal of stabilized voltage supply is connected with the input end of solid-state voltage regulator, the cathode output end of solid-state voltage regulator is connected with the positive source input end of heating furnace, and the power cathode input end of heating furnace and the cathode output end of solid-state voltage regulator are connected with a pair of main contacts of A.C. contactor respectively; Data acquisition system (DAS) comprises K type thermopair, single-chip microcomputer and computing machine, and K type thermopair is arranged in the heating furnace, and the signal output part of K type thermopair is connected with the signal input part of single-chip microcomputer, and the signal output part of single-chip microcomputer is connected with the signal input part of computing machine.
Wherein, in order to guarantee the normal operation of heating furnace, the power input line road of described stabilized voltage supply is provided with resistance wire, and electric ***ine is pressed standard-required and adopted the nickel chromium triangle band.
Wherein, be provided with potentiometer between described stabilized voltage supply and the solid-state voltage regulator, can carry out fine adjustments to the input voltage of solid-state voltage regulator like this, improve the temperature control precision of heating furnace.
Wherein, be provided with photoelectric isolating circuit between the input end of described solid-state voltage regulator and the output terminal, can improve the stability of solid-state voltage regulator output voltage like this.
Beneficial effect: because the furnace temp control system has adopted solid-state voltage regulator, and controls temperature in the stove by the method for manual adjustments heating furnace input voltage, compare with original intelligent temperature controller temperature control method, the internal temperature of heating furnace is more stable; Data acquisition system adopted K type thermopair, single-chip microcomputer and computing machine are finished the generation of sensing, analog-to-digital conversion, scale quantification, data transmission, data processing record and the experiment form of temperature, and the experimental data that draws is more accurate.
Description of drawings
Figure is a structural representation of the present utility model.
Embodiment:
Below in conjunction with accompanying drawing the utility model is done further explanation.
As shown in the figure, a kind of building materials non-combustibility test control system of the present utility model comprises furnace temp control system and data acquisition system (DAS).
The furnace temp control system comprises stabilized voltage supply 1, solid-state voltage regulator 2 and A.C. contactor 3.Stabilized voltage supply 1 adopts the DC5V Switching Power Supply, on its input end and AC power connection line, be provided with resistance wire 8, the electrical heating power of considering heating furnace 4 is at 1KW, and resistance wire 8 is pressed standard-required and adopted the nickel chromium triangle band, and the resistance value of wall scroll nickel chromium triangle band is generally about 11 ohm.The output terminal of stabilized voltage supply 1 is connected with the input end of solid-state voltage regulator 2 by potentiometer 9, and potentiometer 9 adopts multi-turn Wound-rotor type potentiometer, and it can carry out fine adjustments to the input voltage of solid-state voltage regulator 2, improves the temperature control precision of heating furnace 4.The control of selected solid-state voltage regulator 2 is input as 0～10V, and the corresponding inferior utmost point is output as 0～220V, is provided with photoelectric isolating circuit between the input end of solid-state voltage regulator 2 and the output terminal, can improve the stability of solid-state voltage regulator 2 output voltages like this.Consider the working current of heating furnace 4, and device work long hours temperature rise, reliability, the control output load current of selected solid-state voltage regulator 2 should be greater than 25A, and install additional heat radiator dedicated, and radiator fan.The cathode output end of solid-state voltage regulator 2 is connected with the positive source input end of heating furnace 4, the power cathode input end of heating furnace 4 is connected with a pair of main contacts of A.C. contactor 3 respectively with the cathode output end of solid-state voltage regulator 2, is provided with signal lamp 10 on the connection line of the Inside coil contact of A.C. contactor 3 and AC power.
Data acquisition system (DAS) comprises K type thermopair 5, single-chip microcomputer 6 and computing machine 7.The temperature test scope of the thermopair of K type (nickel chromium triangle, nisiloy) calibration number is bigger, be generally 0～1300 ℃, and the working temperature of heating furnace 4 is generally 700～800 ℃, and thus, K type thermopair 5 can meet the demands fully.K type thermopair 5 is arranged in the heating furnace 4, and the signal output part of K type thermopair 5 is connected with the signal input part of single-chip microcomputer 6, and the signal output part of single-chip microcomputer 6 is connected with the signal input part of computing machine 7.That described single-chip microcomputer 6 adopts is the most popular, stability also is the AT89C52 of the U.S. Aunar The Mearl Corporation production in very high 51 series monolithics, analog-to-digital conversion and scale that its professional AD conversion chip TLC1543 that arranges in pairs or groups finishes temperature signal quantize, the communication part of single-chip microcomputer 6 inside is selected the MAX232 chip of U.S. letter company for use, is used for finishing conversion of 232 fiduciary levels and signal transmission.Computing machine 7 Control Software are to adopt Visual Basic 6.0 software programmings of MS, software mainly realize with the serial communication of bottom single-chip microcomputer, stove in the real-time curve chart of real-time displayed record, test temperature of real-time displayed record, central temperature of real-time displayed record, surface temperature of temperature draw, the processing and the printing of the control of test period and record and test figure, trial curve, test form.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. building materials non-combustibility test control system, comprise furnace temp control system and data acquisition system (DAS), it is characterized in that: described furnace temp control system comprises stabilized voltage supply (1), solid-state voltage regulator (2) and A.C. contactor (3), the output terminal of stabilized voltage supply (1) is connected with the input end of solid-state voltage regulator (2), the cathode output end of solid-state voltage regulator (2) is connected with the positive source input end of heating furnace (4), and the cathode output end of the power cathode input end of heating furnace (4) and solid-state voltage regulator (2) is connected with a pair of main contacts of A.C. contactor (3) respectively; Data acquisition system (DAS) comprises K type thermopair (5), single-chip microcomputer (6) and computing machine (7), K type thermopair (5) is arranged in the heating furnace (4), the signal output part of K type thermopair (5) is connected with the signal input part of single-chip microcomputer (6), and the signal output part of single-chip microcomputer (6) is connected with the signal input part of computing machine (7).
2. a kind of building materials non-combustibility test control system according to claim 1, it is characterized in that: the power input line road of described stabilized voltage supply (1) is provided with resistance wire (8).
3. a kind of building materials non-combustibility test control system according to claim 1 is characterized in that: be provided with potentiometer (9) between described stabilized voltage supply (1) and the solid-state voltage regulator (2).
4. a kind of building materials non-combustibility test control system according to claim 1 is characterized in that: be provided with photoelectric isolating circuit between the input end of described solid-state voltage regulator (2) and the output terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200692841U CN202033308U (en) | 2011-03-16 | 2011-03-16 | Building material noncombustibility test control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200692841U CN202033308U (en) | 2011-03-16 | 2011-03-16 | Building material noncombustibility test control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202033308U true CN202033308U (en) | 2011-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200692841U Expired - Fee Related CN202033308U (en) | 2011-03-16 | 2011-03-16 | Building material noncombustibility test control system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202033308U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104914208A (en) * | 2015-06-18 | 2015-09-16 | 英贝儿(天津)测控设备有限责任公司 | Testing device of non-combustible performance of non-combustible floor board |
| CN106226457A (en) * | 2016-08-19 | 2016-12-14 | 陕西省建筑科学研究院 | A kind of building materials non-combustibility test stove TT&C system and using method thereof |
-
2011
- 2011-03-16 CN CN2011200692841U patent/CN202033308U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104914208A (en) * | 2015-06-18 | 2015-09-16 | 英贝儿(天津)测控设备有限责任公司 | Testing device of non-combustible performance of non-combustible floor board |
| CN106226457A (en) * | 2016-08-19 | 2016-12-14 | 陕西省建筑科学研究院 | A kind of building materials non-combustibility test stove TT&C system and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20140316 |