CN201749094U - Pesticide product auto-ignition temperature measurer - Google Patents
Pesticide product auto-ignition temperature measurer Download PDFInfo
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- CN201749094U CN201749094U CN2010202138278U CN201020213827U CN201749094U CN 201749094 U CN201749094 U CN 201749094U CN 2010202138278 U CN2010202138278 U CN 2010202138278U CN 201020213827 U CN201020213827 U CN 201020213827U CN 201749094 U CN201749094 U CN 201749094U
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- chip microcomputer
- temperature
- heating rate
- ignition temperature
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Abstract
The utility model relates to a pesticide product auto-ignition temperature measurer capable of effectively solving the problem of measurement on the auto-ignition temperature of pesticides to ensure the safe use of the pesticides. The utility model has the technical scheme that the pesticide product auto-ignition temperature measurer comprises a temperature control cabinet, a heating furnace, a glass beaker and a thermometer, wherein the heating furnace is arranged on the control cabinet, the glass beaker is arranged in the upper part of the heating furnace, and the thermometer is arranged at the upper part of the glass beaker which is connected with the control cabinet by a sensor; and the control cabinet comprises a shell and a single-chip machine in the shell, the upper part of one side on the front face of the shell is provided with a temperature display screen connected with the single-chip machine, the lower part is provided with a data addition key, a data subtraction key, a shift key and a single-chip machine menu function key which are connected with the single-chip machine, the middle on the front face of the shell is provided with a temperature rise speed regulator connected with the single-chip machine, and the other side of the front face of the shell is sequentially provided with a voltage indicating gauge, a power supply switch and a temperature rise speed changing-over switch which are connected with the single-chip machine. The pesticide product auto-ignition temperature measurer has the advantages of novel and unique structure, accurate temperature measurement, long service life, convenient operation, safety and reliability.
Description
One, technical field
The utility model relates to temperature measuring equipment, particularly a kind of Pesticidal products self-ignition temperature analyzer.
Two, background technology
Agricultural chemicals (dust granule) is the product that prevents in the agricultural production that disease and pest is commonly used, because agricultural chemicals has certain danger, particularly the mensuration of agricultural chemicals self-ignition temperature is to guarantee that the chemistry security use is requisite, agricultural chemicals self-ignition temperature mensuration generally all is by manually measuring in test at present, rising along with temperature, temperature when smog is emerged in burning according to agricultural chemicals is concluded self-ignition temperature, this form of measuring with manual observation is not only inaccurate, and certain insecurity arranged, the agricultural chemicals smog of emerging particularly, staff healthy had great harm, and therefore, the mensuration of agricultural chemicals self-ignition temperature is the problem of the desired solution of those skilled in the art always.
Three, utility model content
At above-mentioned situation, for overcoming the prior art defective, the purpose of the utility model just provides a kind of Pesticidal products self-ignition temperature analyzer, can effectively solve the mensuration of agricultural chemicals self-ignition temperature, guarantee the problem that chemistry security uses, the technical scheme of its solution is, comprise temperature-controlled cabinet, heating furnace, glass beaker and thermometer, heating furnace places above the control box, glass beaker places in the heating furnace top, thermometer is contained in glass beaker top, glass beaker links to each other with control box through sensor, said control box is to be made of housing and interior single-chip microcomputer thereof, housing front face one upper lateral part has the temperature display that links to each other with single-chip microcomputer, the bottom has the data that link to each other with single-chip microcomputer to add key, the data minus key, shift key, single-chip microcomputer menu function key, the housing forward, central part has the heating rate that links to each other with single-chip microcomputer to regulate, housing front face opposite side has the voltage indicating gauge that links to each other with single-chip microcomputer successively, power switch, the heating rate change-over switch, the utility model novel structure uniqueness, thermometric is accurate, long service life, easy to operate, safe and reliable.
Four, description of drawings
Fig. 1 is a structural perspective of the present utility model.
Fig. 2 is single chip machine controlling circuit figure of the present utility model.
Five, embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.
By Fig. 1, shown in 2, the utility model comprises temperature-controlled cabinet, heating furnace, glass beaker and thermometer, heating furnace 4 places above the control box 17, glass beaker 3 places in heating furnace 4 tops, thermometer 1 is contained in glass beaker top, glass beaker links to each other with control box through sensor 2, said control box 17 is to be made of housing and interior single-chip microcomputer IC thereof, housing front face one upper lateral part has the temperature display that links to each other with single-chip microcomputer, the bottom has the numeral that links to each other with single-chip microcomputer to add key 11, numeral subtracts key 12, shift key 13, single-chip microcomputer menu function key 14, the housing forward, central part has the heating rate that links to each other with single-chip microcomputer to regulate, and housing front face opposite side has the voltage indicating gauge 6 that links to each other with single-chip microcomputer successively, power switch 7, heating rate change-over switch 8.
In order to guarantee result of use, said temperature display is regulated design temperature demonstration 15 and is measured temperature by temperature speed I and shows that 16 form; Said heating rate adjusting is contained in the housing forward, central part respectively by heating rate I adjusting 5, heating rate II adjusting 10 and heating rate III adjusting 9 and forms; Said thermometer 1 is a mercury-in-glass thermometer; Said heating furnace is the enclosed type electric heating furnace; Said sensor 2 is the Pt100 sensor;
Said single chip machine controlling circuit is, single-chip microcomputer IC (can adopt MCS-51, K7-E200, JMDM-2011 type single-chip microcomputer a kind of) 4 pin meet power switch K1 and solid-state relay VD (SRS type) and connect 220V AC power live wire through power switch K1 and protective tube FU, 5 pin of single-chip microcomputer IC meet 220V and exchange battery zero line and voltage indicating gauge V, dry combustion method electrothermal tube RL, 1 of single-chip microcomputer IC, be connected to sensor RV between 2 pin, 2 pin are in parallel with 3 pin, 8 of single-chip microcomputer IC, 9,10 pin meet heating rate change-over switch K2, heating rate change-over switch K2 is by adjustable potentiometer RP1, RP2, RP3 composes in parallel, wherein adjustable potentiometer RP3 constitutes the control of single-chip microcomputer one-level, adjustable potentiometer RP1, adjustable potentiometer RP2 constitutes secondary, three grades of manual switchovers, 5 pin of heating rate change-over switch K2 and single-chip microcomputer IC meet solid-state relay VD respectively, and solid-state relay VD links to each other with dry combustion method electrothermal tube RL with voltage indication V.
In above-mentioned parts, wherein power switch K1 is the power switch 7 among Fig. 1, and adjustable potentiometer RP1, adjustable potentiometer RP2, adjustable potentiometer RP3 are that heating rate I adjusting 5, heating rate II adjusting 10 and the heating rate III among Fig. 1 regulates 9; Dry combustion method electrothermal tube RL is the well heater (silk) in the heating furnace 4 among Fig. 1; Sensor RV is the sensor 2 among Fig. 1.
By said structure as can be seen, the utility model is to adopt Single-chip Controlling, the liquid crystal display displays temperature, and high precision Pt100 sensor measurement temperature, fully integrated stepless pressure regulation module is regulated the rate of heat addition.Two kinds of heating rate manual switchovers, but and carry out speed difference compensation according to the environment temperature manual adjustments.Be applicable to mensuration to the granular pesticide self-ignition temperature.
Working condition of the present utility model is, need be placed in smooth, solid and with operation in the explosion-proof vent cabinet.Lay the place from metope 300mm at least, pay special attention to not to be installed in high temperature, high humility, high dust, the place that salt component or other corrosive substances are arranged also can not be installed in the place of impact or high vibration and near place chemicals and inflammable gas; Temperature (0～50) ℃, relative humidity≤85%RH, non-corrosiveness and do not have strong-electromagnetic field radiation occasion; Energized turns on the power switch, and determines that each instrument energising of instrument is working properly.
The utility model adopts the single-chip microcomputer microcomputerized control, and adapted sensor Pt100 (200～+ 500) ℃, measuring error: ± 1.0%FS ± 1b, ± 0.5%FS ± 1b second gear; When concrete the measurement, take by weighing the 1.0g sample, place heating furnace asbestos gauge centre; The temperature-sensitive head of sensor and thermometer is placed apart from the about 0.5cm in asbestos gauge edge place; Connect instrument power source, turn on the power switch, instrument begins heat temperature raising; After 100 ± 5 ℃ of heating-up temperature arrival are stablized, change-over switch is placed II, at this moment instrument heats sample with 5～10 ℃ of heating rates of per minute; To sample when being fuming, with change-over switch place III at this moment instrument with 1～2 ℃ of heating rate of per minute sample is heated, observe the instantaneous temperature that sample is fuming and be self-ignition temperature.With with quadrat method sample of the same race being done twice test, and two times result is averaged, as measurement result, but twice replicate determination result's difference is not more than 5 ℃, is the self-ignition temperature of agricultural chemicals, and is convenient and swift, accurate.
Show by above-mentioned situation, the utlity model has following outstanding advantage:
1, the utility model is a monolithic construction, long service life;
2, the utility model adopts Single-chip Controlling, the liquid crystal display displays temperature, and high precision Pt100 sensor measurement temperature, fully integrated stepless pressure regulation module is regulated the rate of heat addition, and is effective, and test is accurately;
3, two kinds of heating rate manual switchovers of the utility model, but and carry out speed difference compensation according to the environment temperature manual adjustments;
4, heating furnace is made by stainless steel, increases its corrosion resistance;
5, easy to loading and unloading, the appearance looks elegant, rational in infrastructure, easy and safe to operate reliable of the utility model structure.
It should be appreciated that; above-mentioned only is the embodiment situation that provides; the utility model is only for embodiment, every adopt structurally that the equivalent substitution means have done structurally do not have the technical scheme of difference in fact with the utility model, be protection domain of the present utility model.
Claims (4)
1. Pesticidal products self-ignition temperature analyzer, comprise temperature-controlled cabinet, heating furnace, glass beaker and thermometer, it is characterized in that heating furnace (4) places above the control box (17), glass beaker (3) places in heating furnace (4) top, thermometer (1) is contained in glass beaker top, glass beaker links to each other with control box through sensor (2), said control box (17) is to be made of housing and interior single-chip microcomputer (IC) thereof, housing front face one upper lateral part has the temperature display that links to each other with single-chip microcomputer, the bottom has the numeral that links to each other with single-chip microcomputer to add key (11), numeral subtracts key (12), shift key (13), single-chip microcomputer menu function key (14), the housing forward, central part has the heating rate that links to each other with single-chip microcomputer to regulate, and housing front face opposite side has the voltage indicating gauge (6) that links to each other with single-chip microcomputer successively, power switch (7), heating rate change-over switch (8).
2. Pesticidal products self-ignition temperature analyzer according to claim 1 is characterized in that, said temperature display is regulated design temperature demonstration (15) by temperature speed I and measured temperature demonstration (16) and form.
3. Pesticidal products self-ignition temperature analyzer according to claim 1, it is characterized in that said heating rate adjusting is contained in the housing forward, central part respectively by heating rate I adjusting (5), heating rate II adjusting (10) and heating rate III adjusting (9) and forms.
4. Pesticidal products self-ignition temperature analyzer according to claim 1, it is characterized in that, said single chip machine controlling circuit is, 4 pin of single-chip microcomputer IC meet power switch K1 and solid-state relay VD and connect 220V AC power live wire through power switch K1 and protective tube FU, 5 pin of single-chip microcomputer IC meet 220V and exchange battery zero line and voltage indicating gauge V, dry combustion method electrothermal tube (RL, 1 of single-chip microcomputer IC, be connected to sensor RV between 2 pin, 2 pin are in parallel with 3 pin, 8 of single-chip microcomputer IC, 9,10 pin meet heating rate change-over switch K2, heating rate change-over switch K2 is by adjustable potentiometer RP1, RP2, RP3 composes in parallel, wherein adjustable potentiometer RP3 constitutes the control of single-chip microcomputer one-level, adjustable potentiometer RP1, adjustable potentiometer RP2 constitutes secondary, three grades of manual switchovers, 5 pin of heating rate change-over switch K2 and single-chip microcomputer IC meet solid-state relay VD respectively, and solid-state relay VD links to each other with dry combustion method electrothermal tube RL with voltage indication V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202138278U CN201749094U (en) | 2010-06-03 | 2010-06-03 | Pesticide product auto-ignition temperature measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202138278U CN201749094U (en) | 2010-06-03 | 2010-06-03 | Pesticide product auto-ignition temperature measurer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201749094U true CN201749094U (en) | 2011-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202138278U Expired - Lifetime CN201749094U (en) | 2010-06-03 | 2010-06-03 | Pesticide product auto-ignition temperature measurer |
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| Country | Link |
|---|---|
| CN (1) | CN201749094U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913797A (en) * | 2015-05-29 | 2015-09-16 | 广州供电局有限公司 | Pointer type instrument number reading and recognition method and system |
-
2010
- 2010-06-03 CN CN2010202138278U patent/CN201749094U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913797A (en) * | 2015-05-29 | 2015-09-16 | 广州供电局有限公司 | Pointer type instrument number reading and recognition method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110216 |