CN203178000U - Chemical reaction heat measurement device - Google Patents
Chemical reaction heat measurement device Download PDFInfo
- Publication number
- CN203178000U CN203178000U CN 201320252587 CN201320252587U CN203178000U CN 203178000 U CN203178000 U CN 203178000U CN 201320252587 CN201320252587 CN 201320252587 CN 201320252587 U CN201320252587 U CN 201320252587U CN 203178000 U CN203178000 U CN 203178000U
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- China
- Prior art keywords
- reaction
- thermal insulation
- reaction cup
- glass tube
- liquid
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- Expired - Fee Related
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Abstract
Disclosed in the utility model is a chemical reaction heat measurement device that comprises a thermal insulation pedestal. A reaction cup is arranged in the thermal insulation pedestal; and a thermal insulation cover is arranged on the thermal insulation pedestal. A liquid dropping device that is arranged at the thermal insulation cover includes a glass tube and an air bag; the air bag is communicated with one end of the glass tube; and the other end of the glass tube penetrates the thermal insulation cover and is inserted into the reaction cup. A temperature sensor is arranged at the bottom of the reaction cup and is electrically connected with an A/D digital analog converter; and the A/D digital analog converter is electrically connected with a liquid crystal display. One kind of Reaction liquid is placed into the reaction cup; another kind of reaction liquid is absorbed by the liquid dropping device according to a reaction ratio; the glass tube is inserted into the reaction cup; the air bag is pressed to squeeze the another kind of reaction liquid into the reaction cup; the temperature sensor converts the temperature change into an electric signal and transmits the electric signal to the A/D digital analog converter; the A/D digital analog converter carries out processing on the analog electric signal into a digital signal; and the digital signal is displayed by the liquid crystal display. The provided device has the advantages of good thermal insulation effect, high measurement precision, simple structure and low using cost.
Description
Technical field
The utility model relates to a kind of chemistry teaching apparatus, specifically, relates to a kind of chemical reaction heat measuring appliance, belongs to the instructional technology field.
Background technology
All be accompanied by release or the absorption of heat in most chemical reaction processes, by the mensuration to the heat of these releases or absorption, can determine the empirical value of other needs indirectly.
Have and much be used for detecting the instrument that chemical reaction temperature changes, the variation of reacting liquid temperature is measured in initial employing usually with common thermometer in course of reaction, but because the ratio of precision of common thermometer is lower, only can find out rising or the reduction of temperature substantially, not reach the requirement of test; At present, some sensitivity and the higher instrument of ratio of precision have appearred on the market, the data that these instruments record are relatively near theoretical value, but need supporting equipment many on the one hand, the problem that has the operation more complicated like this, the price comparison costliness of these equipment on the other hand, the cost of working service has limited its application in regular school than higher.
The utility model content
The technical problems to be solved in the utility model is at above deficiency, and a kind of chemical reaction heat measuring appliance simple in structure is provided, the precision height, and use cost is low.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is as follows: a kind of chemical reaction heat measuring appliance is characterized in that: described chemical reaction heat measuring appliance comprises the insulation base, is provided with reaction cup in the insulation base, and the insulation base is provided with insulation cover;
Described insulation cover is provided with liquid-drop machine, and liquid-drop machine is made up of glass tube and air bag, and air bag is communicated with the end at glass tube, and the other end of glass tube can run through insulation cover and insert in the reaction cup;
The bottom of described reaction cup is provided with temperature sensor, and temperature sensor is electrically connected with the A/D digital to analog converter, and the A/D digital to analog converter is electrically connected with LCD.
The utility model has adopted technique scheme, compared with prior art, the utlity model has following advantage: a kind of reactant liquor is placed in the reaction cup, draw another kind of reactant liquor according to reaction ratio with liquid-drop machine, glass tube is inserted in the reaction cup, compression bladder is clamp-oned reaction cup with another kind of reactant liquor, temperature sensor is converted to electric signal with variation of temperature and transfers to the A/D digital to analog converter, the A/D digital to analog converter is treated to digital signal with the electric signal of simulation, show high insulating effect, measuring accuracy height by LCD, relatively simple for structure, use cost is low.
Below in conjunction with drawings and Examples the utility model is described further.
Description of drawings
Accompanying drawing 1 is the structural representation of chemical reaction heat measuring appliance among the utility model embodiment;
Accompanying drawing 2 is the electrical schematic diagram of chemical reaction heat measuring appliance among the utility model embodiment;
Among the figure,
1-is incubated base, 2-insulation cover, 3-reaction cup, 4-liquid-drop machine, 5-temperature sensor, 6-A/D digital to analog converter, 7-LCD, 8-glass tube, 9-air bag.
Embodiment
Embodiment, as Fig. 1, shown in Figure 2, a kind of chemical reaction heat measuring appliance, comprise the insulation base of making of insulation material 1, be provided with reaction cup 3 in the insulation base 1, insulation base 1 is provided with the insulation cover 2 that insulation material is made, insulation cover 2 is provided with liquid-drop machine 4, liquid-drop machine 4 is made up of glass tube 8 and air bag 9, and the end that air bag 9 is communicated with at glass tube 8, the other end of glass tube 8 can run through insulation cover 2 and insert in the reaction cup 3, the bottom of reaction cup 3 is provided with temperature sensor 5, temperature sensor 5 is electrically connected with A/D digital to analog converter 6, and the model of A/D digital to analog converter 6 is ADC0809, and A/D digital to analog converter 6 is electrically connected with LCD 7.
During use, a kind of reactant liquor is placed in the reaction cup 3, draw another kind of reactant liquor according to reaction ratio with liquid-drop machine 4, glass tube 8 is inserted in the reaction cup 3, compression bladder 9 is clamp-oned reaction cup 3 with another kind of reactant liquor, temperature sensor 5 is converted to electric signal with variation of temperature and transfers to A/D digital to analog converter 6, and A/D digital to analog converter 6 is treated to digital signal with the electric signal of simulation, shows by LCD 7, high insulating effect, the measuring accuracy height, relatively simple for structure, use cost is low.
Those skilled in the art will recognize that; above-mentioned embodiment is exemplary; be in order to make those skilled in the art can better understand the utility model content; should not be understood as the restriction to the utility model protection domain; so long as the improvement of doing according to technical solutions of the utility model all falls into protection domain of the present utility model.
Claims (1)
1. chemical reaction heat measuring appliance is characterized in that: described chemical reaction heat measuring appliance comprises insulation base (1), is provided with reaction cup (3) in the insulation base (1), and insulation base (1) is provided with insulation cover (2);
Described insulation cover (2) is provided with liquid-drop machine (4), and liquid-drop machine (4) is made up of glass tube (8) and air bag (9), and air bag (9) is communicated with the end at glass tube (8), and the other end of glass tube (8) can run through insulation cover (2) and insert in the reaction cup (3);
The bottom of described reaction cup (3) is provided with temperature sensor (5), and temperature sensor (5) is electrically connected with A/D digital to analog converter (6), and A/D digital to analog converter (6) is electrically connected with LCD (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320252587 CN203178000U (en) | 2013-04-26 | 2013-04-26 | Chemical reaction heat measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320252587 CN203178000U (en) | 2013-04-26 | 2013-04-26 | Chemical reaction heat measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203178000U true CN203178000U (en) | 2013-09-04 |
Family
ID=49074682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320252587 Expired - Fee Related CN203178000U (en) | 2013-04-26 | 2013-04-26 | Chemical reaction heat measurement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203178000U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106813808A (en) * | 2017-01-18 | 2017-06-09 | 陈奕漩 | A kind of reaction detection base |
-
2013
- 2013-04-26 CN CN 201320252587 patent/CN203178000U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106813808A (en) * | 2017-01-18 | 2017-06-09 | 陈奕漩 | A kind of reaction detection base |
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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: 20130904 Termination date: 20140426 |