CN207689308U - A kind of real density instrument with temperature incubation function - Google Patents
A kind of real density instrument with temperature incubation function Download PDFInfo
- Publication number
- CN207689308U CN207689308U CN201721853813.0U CN201721853813U CN207689308U CN 207689308 U CN207689308 U CN 207689308U CN 201721853813 U CN201721853813 U CN 201721853813U CN 207689308 U CN207689308 U CN 207689308U
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- Prior art keywords
- density instrument
- true density
- instrument
- constant temperature
- heat exchanger
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- 238000011534 incubation Methods 0.000 title abstract 4
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 238000009413 insulation Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 17
- 238000004321 preservation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011549 displacement method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
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Abstract
The utility model provides a kind of real density instrument with temperature incubation function, including：Thermostatic bath, heat exchanger, convection fan, insulating lining；Thermostatic bath makes the liquid in thermostatic bath and heat exchanger internal circulation flow keep constant temperature；Heat exchanger is arranged in real density instrument, maintains the temperature of real density instrument inner space constant by heat exchange；Convection fan increases speed air flow in real density instrument, and real density instrument internal temperature is made to keep homogeneity；Insulating lining is arranged in real density instrument inner wall, prevents the heat exchange of real density instrument and environment.The utility model provides a kind of real density instrument with temperature incubation function, can be measured to the real density of sample to be tested under isoperibol, keep test result more accurate；In addition, the real density of sample at different temperatures should can be measured with the real density instrument of temperature incubation function.
Description
Technical Field
The utility model relates to a true density survey field, concretely relates to true density appearance with constant temperature function.
Background
At present, the gas expansion displacement method of the Archimedes principle is mostly applied to the test of the true density at home and abroad. And determining the skeleton volume of the sample by measuring the reduction of the volume of the gas exhausted from the test cavity of the true density instrument after the sample is placed by using the Bohr's law, and removing the mass of the sample to obtain the true density of the sample. Calculating the change of the volume of the gas in the test cavity of the true density instrument before and after lofting by using the Bohr's law, and requiring the temperature in the test cavity to be constant; if the temperature difference is large, the test result is not accurate. In addition, the true density of different samples at different temperatures can slightly differ due to expansion with heat and contraction with cold of the sample volume, so that the temperature in the test chamber should be constant at a certain temperature when the true density of the sample is measured. At present, most of instruments for testing the true density at home and abroad are at room temperature or only can be heated to raise the temperature, and cannot meet the special requirements for testing the true density of a sample at a specific temperature or below the room temperature.
Disclosure of Invention
Based on present true density appearance can't satisfy carry out the not enough of survey to the true density of the sample that awaits measuring under specific temperature, the utility model provides a true density appearance with constant temperature function. The utility model makes the test of the true density instrument more accurate; in addition, the utility model discloses make true densimeter realize the purpose of accurate measurement sample true density under different temperature conditions.
The utility model discloses a realize through following technical scheme.
The utility model provides a true density appearance with constant temperature function, include: a constant temperature bath, a heat exchanger, a convection fan and a heat insulation lining;
the constant temperature bath keeps the liquid circulating in the constant temperature bath and the heat exchanger at a constant temperature;
the heat exchanger is arranged in the true density instrument, and the temperature of the inner space of the true density instrument is maintained to be constant through heat exchange.
The convection fan increases the air flow speed in the true density instrument so as to keep the internal temperature of the true density instrument uniform;
the heat preservation inside lining sets up at the true density appearance inner wall, prevents the heat exchange of true density appearance and environment.
Can find out by above-mentioned utility model technical scheme, the utility model provides a true density appearance with constant temperature function, its beneficial effect is: the true density instrument can measure the true density of a sample to be measured in a constant temperature environment, so that the test result is more accurate; in addition, the true density instrument with the constant temperature function can measure the true density of the sample at different temperatures.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a true densitometer with a thermostatic function.
In the figure, 1 is a constant temperature bath, 2 is a convection fan, 3 is a heat insulation lining, 4 is a heat exchanger, 5 is a test cavity, 6 is a vacuum density meter, 7 is a liquid inlet, and 8 is a liquid outlet.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a true density meter with a constant temperature function, including: the device comprises a constant temperature bath 1, a convection fan 2, a heat insulation lining 3 and a heat exchanger 4; wherein,
the thermostatic bath 1 maintains a constant temperature of the liquid circulating in the heat exchanger 4 and the thermostatic bath 1. The range of the constant temperature is determined by the circulating liquid, and when the circulating liquid is water, the range of the constant temperature value is as follows: 4-100 ℃; when the circulating liquid is glass water, the constant temperature can reach-40 ℃ at the lowest.
The convection fan 2 accelerates the air flow in the true density instrument 6, so that the heat exchange between the heat exchanger 4 and the air in the true density instrument 6 is accelerated, and the test chamber is rapidly kept at a constant temperature.
The heat preservation lining 3 is made of a material with low heat conductivity and is arranged on the inner wall of the true density instrument 6, so that heat exchange between the true density instrument 6 and the environment is reduced, and the temperature in the true density instrument 6 is stable.
The heat exchanger 4 is arranged inside the true density instrument 6, and heat exchange is carried out between the heat exchanger 4 and the gas in the true density instrument 6, so that the constant temperature is maintained in the true density instrument 6.
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
When the constant temperature device is used, a constant temperature bath 1 (shown in figure 1) is started, the constant temperature bath 1 enables liquid in the constant temperature bath to keep a constant temperature, and the liquid in the constant temperature bath flows in from a liquid inlet 7 (shown in figure 1), flows through a heat exchanger 4 (shown in figure 1) arranged in a true density instrument 6 (shown in figure 1), and then flows back to the constant temperature bath 1 from a liquid outlet 8 (shown in figure 1). When the temperature of the liquid in the constant temperature bath 1 is higher than the temperature in the true density instrument 6, the circulating liquid releases heat into the true density instrument 6 through the heat exchanger 4, so that the temperature in the true density instrument is raised to be the same as the temperature of the circulating liquid; similarly, when the temperature of the liquid in the constant temperature bath 1 is lower than the internal temperature of the true density instrument 6, the circulating liquid absorbs heat into the case of the true density instrument 6 through the heat exchanger 4, so that the temperature in the true density instrument 6 is reduced to the same temperature as the circulating liquid. The convection fan 2 is used for accelerating the heat exchange rate of the heat exchanger 4 and the air in the true density instrument and shortening the time required for constant temperature. The heat-insulating lining 3 (shown in figure 1) is made of a material with low heat conductivity, so that the heat exchange between the interior of the true density instrument 6 and the external environment through the case wall is prevented, and the constant temperature effect of the constant temperature device is reduced. The convection fan 2 accelerates the air flow in the true density instrument 6, so that the heat exchange between the heat exchanger 4 and the air in the true density instrument 6 is accelerated, and the test chamber is rapidly kept at a constant temperature. When the temperature inside the true densitometer 6 is constant, the test chamber 5 is in a constant temperature air bath, and the temperature of the test chamber 5 is constant, the true densitometer 6 can test the sample at the constant temperature.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. A true density instrument with a constant temperature function is characterized by comprising: a constant temperature bath, a heat exchanger, a convection fan and a heat insulation lining;
the constant temperature bath is connected with the heat exchanger through a liquid conveying pipeline, so that the liquid circularly flowing in the heat exchanger and the constant temperature bath is kept at a constant temperature;
the heat exchanger is arranged in the true density instrument, and the temperature in the true density instrument is constant through heat exchange;
the convection fan is arranged inside the true density instrument to accelerate the flow speed of air inside the true density instrument;
the heat-insulating lining is arranged on the inner wall of the case of the true density instrument, and can prevent the heat exchange between the air in the case and the external environment.
2. The true density instrument with the constant temperature function according to claim 1, wherein the constant temperature bath maintains a constant temperature of the liquid circulating in the constant temperature bath and the heat exchanger.
3. The instrument according to claim 1, wherein the heat exchanger is disposed inside the instrument, and the heat exchanger exchanges heat with air inside the instrument until the temperature of the circulating fluid is the same as the temperature of the air inside the instrument.
4. The apparatus of claim 1, wherein the convection fan is disposed at a proximal end of the heat exchanger to increase a rate of heat exchange between the heat exchanger and air within the apparatus.
5. The true density instrument with the constant temperature function according to claim 1, wherein the thermal insulation lining is arranged on the inner wall of the case of the true density instrument, and the thermal insulation lining is made of a material with low thermal conductivity, so that the inside of the true density instrument can be isolated from the external environment, and the heat exchange between the air inside the true density instrument and the environment is reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721853813.0U CN207689308U (en) | 2017-12-27 | 2017-12-27 | A kind of real density instrument with temperature incubation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721853813.0U CN207689308U (en) | 2017-12-27 | 2017-12-27 | A kind of real density instrument with temperature incubation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207689308U true CN207689308U (en) | 2018-08-03 |
Family
ID=62996169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721853813.0U Active CN207689308U (en) | 2017-12-27 | 2017-12-27 | A kind of real density instrument with temperature incubation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207689308U (en) |
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2017
- 2017-12-27 CN CN201721853813.0U patent/CN207689308U/en active Active
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