CN204134657U - A kind of thermostat water bath - Google Patents
A kind of thermostat water bath Download PDFInfo
- Publication number
- CN204134657U CN204134657U CN201420424768.7U CN201420424768U CN204134657U CN 204134657 U CN204134657 U CN 204134657U CN 201420424768 U CN201420424768 U CN 201420424768U CN 204134657 U CN204134657 U CN 204134657U
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- CN
- China
- Prior art keywords
- pot body
- comparison circuit
- heating chamber
- temperature comparison
- heating wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A kind of thermostat water bath, comprise a pot body, pot body is provided with leg, pot body top is provided with test tube storage tank, bottom of pot body is provided with heating chamber, heating chamber inside is provided with electrical heating wire, electrical heating wire is isolated by heating chamber and pot nside, pot body sidewall is provided with electric refrigeration device, pot body also comprises temperature-adjusting circuit and LED work display, temperature-adjusting circuit respectively with electrical heating wire, electricity refrigeration device, LED work display and power supply connect, adopt said apparatus, operating personnel can the comparatively accurate temperature by water-bath inside control in certain scope, circuit is simple, with low cost.
Description
Technical field
The utility model relates to a kind of chemical laboratory apparatus, especially relates to a kind of thermostat water bath that can keep certain reaction temperature.
Background technology
When chemical laboratory carries out chemical reaction, some chemical reactions need to carry out within specified temperatures, due to test tube small volume, being difficult to, special device is set and carrying out temperature control, adopt thermostatic chamber can only carry out the experiment of lower temperature, cost is also very large, general laboratory cannot realize above-mentioned condition, water-bath can realize above-mentioned function, but existing water-bath also exists the defect that can only heat and can not lower the temperature, and control circuit is comparatively complicated, easily damages, cost is higher, is not suitable for large-scale popularization.
Utility model content
In order to overcome above-mentioned technical problem, the utility model provide a kind of structure simple, control accurate thermostat water bath, the technical scheme of employing is as follows:
A kind of thermostat water bath, comprise a pot body, pot body is provided with leg, pot body top is provided with test tube storage tank, and bottom of pot body is provided with heating chamber, and heating chamber inside is provided with electrical heating wire, electrical heating wire is isolated by heating chamber and pot nside, pot body sidewall is provided with electric refrigeration device, and pot body also comprises temperature-adjusting circuit and LED work display, and temperature-adjusting circuit works with electrical heating wire, electric refrigeration device, LED respectively and to show and power supply is connected.
Further, described temperature-adjusting circuit comprises high temperature comparison circuit, low temperature comparison circuit and normal temperature comparison circuit, high temperature comparison circuit and low temperature comparison circuit comprise temp .-sensitive diodes and voltage-stabiliser tube respectively, temp .-sensitive diodes is connected the input of amplifier respectively with the output of voltage-stabiliser tube, amplifier out connects electrical heating wire or electric refrigeration device, amplifier out connects normal temperature comparison circuit by backward dioded, and normal temperature comparison circuit connects LED work display.
Further, described electric refrigeration device is refrigeration diode, and described electric heating chamber is soft metal conductive structure, and falling heat-transfer oil in electric heating chamber, described pot body sidewall is provided with thermometer.
Adopt said apparatus, operating personnel can the comparatively accurate temperature by water-bath inside control in certain scope, and circuit is simple, with low cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of thermostat water bath.
Fig. 2 is temperature-adjusting circuit circuit diagram.
Wherein 1-pot body; 2-test tube storage tank; 3-leg; 4-heating chamber; 5-electrical heating wire; 6-electricity refrigeration device; 7-temperature-adjusting circuit; 8-LED works display; 9-power supply; 10-thermometer.
Detailed description of the invention
Thermostat water bath as shown in Figure 1, comprise pot body 1, pot body 1 is provided with leg 3, pot body 1 top is provided with test tube storage tank 2, heating chamber 4 is provided with bottom pot body 1, heating chamber 4 inside is provided with electrical heating wire 5, electrical heating wire 5 is by heating chamber 4 and pot body 1 internal insulation, consider and expand with heat and contract with cold, electric heating chamber 4 is set to soft metal conductive structure, falling heat-transfer oil in electric heating chamber 4, pot body 1 sidewall is provided with electric refrigeration device 6, electricity refrigeration device 6 generally adopts refrigeration diode, for strengthening refrigerating efficiency, metal conducting strip can be installed additional on refrigeration diode, pot body 1 also comprises temperature-adjusting circuit 7 and LED work display 8, temperature-adjusting circuit 7 respectively with electrical heating wire 5, electricity refrigeration device 6, LED work display 8 and power supply 9 connect, pot body 1 sidewall can also be provided with a thermometer 10.
Fig. 2 is the circuit diagram of temperature-adjusting circuit, comprise high temperature comparison circuit, low temperature comparison circuit and normal temperature comparison circuit, high temperature comparison circuit and low temperature comparison circuit comprise temp .-sensitive diodes D3 respectively, D4 and voltage-stabiliser tube D2, D5, temp .-sensitive diodes is connected amplifier U1 respectively with the output of voltage-stabiliser tube, the input of U2, amplifier U1, U2 output connects electrical heating wire U4 or electric refrigeration device U5, amplifier U1, U2 output connects normal temperature comparison circuit by backward dioded D1, normal temperature comparison circuit connects LED work display, by comparing incoming level, amplifier U3 in normal temperature comparison circuit judges whether heating or refrigeration circuit work, and then the conducting of control LED work display.
The above, be only detailed description of the invention of the present utility model, and those of ordinary skill in the art are in the scope that the utility model discloses, and the change that can expect easily, within the protection domain that all should be encompassed in utility model.
Claims (2)
1. a thermostat water bath, comprise a pot body, pot body is provided with leg, it is characterized in that pot body top is provided with test tube storage tank, bottom of pot body is provided with heating chamber, heating chamber inside is provided with electrical heating wire, electrical heating wire is isolated by heating chamber and pot nside, pot body sidewall is provided with electric refrigeration device, pot body also comprises temperature-adjusting circuit and LED work display, temperature-adjusting circuit respectively with electrical heating wire, electricity refrigeration device, LED work display and power supply connect, described electric refrigeration device is refrigeration diode, described electric heating chamber is soft metal conductive structure, falling heat-transfer oil in electric heating chamber, described pot body sidewall is provided with thermometer.
2. a kind of thermostat water bath as claimed in claim 1, it is characterized in that described temperature-adjusting circuit comprises high temperature comparison circuit, low temperature comparison circuit and normal temperature comparison circuit, high temperature comparison circuit and low temperature comparison circuit comprise temp .-sensitive diodes and voltage-stabiliser tube respectively, temp .-sensitive diodes is connected the input of amplifier respectively with the output of voltage-stabiliser tube, amplifier out connects electrical heating wire or electric refrigeration device, amplifier out connects normal temperature comparison circuit by backward dioded, and normal temperature comparison circuit connects LED work display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420424768.7U CN204134657U (en) | 2014-07-30 | 2014-07-30 | A kind of thermostat water bath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420424768.7U CN204134657U (en) | 2014-07-30 | 2014-07-30 | A kind of thermostat water bath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204134657U true CN204134657U (en) | 2015-02-04 |
Family
ID=52411375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420424768.7U Expired - Fee Related CN204134657U (en) | 2014-07-30 | 2014-07-30 | A kind of thermostat water bath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204134657U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300766A (en) * | 2015-11-04 | 2016-02-03 | 浙江大学 | Circulating water bath constant-temperature tank special for food detection electronic tongue |
| CN108945932A (en) * | 2018-08-14 | 2018-12-07 | 温州市人民医院 | A kind of reagent with temperature-regulating module goes out loading device automatically |
-
2014
- 2014-07-30 CN CN201420424768.7U patent/CN204134657U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300766A (en) * | 2015-11-04 | 2016-02-03 | 浙江大学 | Circulating water bath constant-temperature tank special for food detection electronic tongue |
| CN105300766B (en) * | 2015-11-04 | 2018-04-10 | 浙江大学 | A kind of special circulator bath thermostat of food inspection electronic tongues |
| CN108945932A (en) * | 2018-08-14 | 2018-12-07 | 温州市人民医院 | A kind of reagent with temperature-regulating module goes out loading device automatically |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 Termination date: 20150730 |
|
| EXPY | Termination of patent right or utility model |