CN202221346U - Realization device under temperature source of 550 DEG C to 880 DEG C - Google Patents
Realization device under temperature source of 550 DEG C to 880 DEG C Download PDFInfo
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- CN202221346U CN202221346U CN2011203098291U CN201120309829U CN202221346U CN 202221346 U CN202221346 U CN 202221346U CN 2011203098291 U CN2011203098291 U CN 2011203098291U CN 201120309829 U CN201120309829 U CN 201120309829U CN 202221346 U CN202221346 U CN 202221346U
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Abstract
The utility model relates to a realization device under a temperature source of 550 DEG C to 880 DEG C. The device comprises a temperature conduction medium, a container, an electric heater and a stirrer. The container is provided with a standard thermometer, a to-be-tested thermometer and the electric stirrer. The electric heater is disposed under the container. The electric heater is connected with a temperature controller. The realization device under a temperature source of 550 DEG C to 880 DEG C allows temperature to be uniformly increased and makes the temperature source have a large uniform temperature area. The temperature difference is small within a constant temperature area.
Description
Technical field
The utility model relates to a kind of implement device 550 ℃～880 ℃ of following temperature source.
Background technology
Temperature source is that a container is stabilized on certain temperature value behind the heating temperature control, and the diverse location temperature difference in the container is more little good more.
The implementation method of 0 ℃～300 ℃ temperature source (middle low temperature thermostat bath):
The 1 silicone oil media such as (being in a liquid state under the room temperature) of in a bulk containers, annotating
2 usefulness electric heaters heat silicone oil, stir medium with electric mixer, and temperature controller is regulated heating power control furnace temperature and is stabilized on the design temperature.This method can obtain high stability and homogeneity.
3 because silicone oil itself surpasses 300 ℃ of very easily burnings, and therefore, this kind equipment can only worked below 300 ℃.
550 ℃～880 ℃ traditional implementation methods are:
1 uses the horizontal pipe electrothermal furnace.
2 give heating wire 3 energisings, and temperature controller is regulated heating power control furnace temperature and is stabilized on the design temperature.
The average temperature performance of the temperature at 3 burner hearths, 6 a geometric center places dependence material itself constitutes.
Technical feature: under 550 ℃～880 ℃, the temperature field of adopting usually is a tubular furnace, because the heater strip temperature rise can't guarantee that evenly its samming zone 1 is diameter 40mm, and length 60mm, uniformity coefficient is 1 ℃, employing insulation material 2 insulations in the samming zone 1.In the overall uncertainty of measuring process, the uncertainty component of this temperature source contribution is about 1 ℃.
Chinese patent ZL 96203358.8 discloses a kind of saturation type humidity generator of scalable temperature; It belongs to the psychrometry utensil; It is employed in replaceable drawer type salt box and public operating room is set in the calibration cell, adorns the saturated solution of different salt in the salt box respectively, and temperature is adopted PID control and automatic-adjusting technique; Through liquid stirrer work, can make the quick balance of temperature of constant temperature liquid.The salt solusion that the device that this patent is mentioned uses is meant the potpourri of the water-soluble formation of salt, and is operated in below 100 ℃, can't be applied in 550 ℃～880 ℃ following temperature source realizations.
The utility model content
The purpose of the utility model is for overcoming the deficiency of above-mentioned prior art, provides a kind of intensification even, and the samming zone is big, the implement device 550 ℃～880 ℃ of following temperature source that has a narrow range of temperature in the isothermal region.
For realizing above-mentioned purpose, the utility model adopts following technical proposals:
A kind of implement device 550 ℃～880 ℃ of following temperature source; Comprise container, be provided with in the test chamber of container and the working chamber and fill full fluid liquid salt, be provided with standard thermometer, calibrated thermometer and electric mixer in the container; The container bottom is provided with electric heater, and electric heater links to each other with temperature controller.
A kind of implementation method 550 ℃～880 ℃ of following temperature source may further comprise the steps:
1) barium chloride and potassium chloride powder are pressed mass ratio evenly mixing in 1: 1, fill the test chamber and the working chamber of full container;
2) after the start-up control system, temperature controller control electric heater slowly heats up with the speed of 1 ℃/min;
3) temperature is raised to 520 ℃ ± 2 ℃, keeps current heating power constant, and solid-state barium chloride and potassium chloride powder begin slow fusing;
4) treat that solid-state barium chloride and potassium chloride powder all are molten into fluid liquid salt, controller control stirring motor starts automatically, and fluid liquid salt is stirred;
5) set through accurate temperature controller and want the temperature that reaches, the control electric heater is regulated rule according to PID and is exported corresponding heat, the fluid liquid salt in the container is heated to the temperature of setting, and keeps stable;
6) accurate temperature controller guarantees fluid liquid salt temperature stabilization through regulating heating power, and fluctuation range is less than 0.01 ℃ up and down; Stirring motor drives stirrer promotion fluid liquid salt and in entire container, circulates, and guarantees that each position has a narrow range of temperature in 0.01 degree centigrade, finally forms a high-precision temperature source, can satisfy accurate temperature correction demand.
Temperature controller in the utility model, electric mixer, electric heater are existing equipment, repeat no more at this.
The innovation part of the utility model is:
The inorganic salts that the utility model is mentioned are not moisture, and the back phase transformation of being heated is in a liquid state, and is operated in 550 ℃～880 ℃, realized the temperature source of the high uniformity stability that high temperature is following 550 ℃～880 ℃.
It has two main points:
1 has found a kind of actuating medium, and this medium at room temperature is a solid state powder, is molten into the medium that has than high fluidity under the high temperature.And the medium that middle low temperature thermostat bath uses is in a liquid state always.
2 independent design one covering device, can the solid state medium heat fused be become liquid, then with in the similar mode of low temperature thermostat bath realize high-precision temperature field.(middle low temperature thermostat bath directly uses liquid medium, can't solids be molten into liquid state).
Be with the different of original device:
This device is operated in 550 ℃～880 ℃, and temperature high uniformity, high stability;
Middle low temperature thermostat bath also can be realized high uniformity and high stability, but can only work below 300 ℃; Tubular furnace can be 550 ℃～880 ℃ section work, but warm field uniformity is not high, poor stability.
The utility model adopts unique medium prescription (barium chloride and potassium chloride powder evenly mixed by 50%: 50%), utilizes the back liquefiable of being heated of this potpourri, and mobile the enhancing realized uniform temperature field.
The utility model passes through to adopt technique scheme, compared with prior art,
Description of drawings
Fig. 1 is the prior art structural representation;
Fig. 2 is the apparatus structure synoptic diagram of the utility model;
Wherein 1. sammings are regional, 2. insulation material, 3. heating wire, 4. standard thermometer, 5. calibrated thermometer, 6. burner hearth, 7. fluid liquid salt, 8. electric mixer, 9. electric heater.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
As shown in Figure 2; A kind of at implement device 550 ℃～880 ℃ of following temperature source; Comprise container, be provided with in the test chamber of container and the working chamber and fill full fluid liquid salt 7, be provided with standard thermometer 4, calibrated thermometer 5 and electric mixer 8 in the container; The container bottom is provided with electric heater 9, and electric heater 9 links to each other with temperature controller.
A kind of implementation method 550 ℃～880 ℃ of following temperature source may further comprise the steps:
1) is evenly mixing in 1: 1 with barium chloride and potassium chloride powder by mass ratio, fills the test chamber and the working chamber of full container;
2) after the start-up control system, temperature controller control electric heater 9 slowly heats up with the speed of 1 ℃/min;
3) temperature is raised to 520 ℃ ± 2 ℃, keeps current heating power constant, and solid-state barium chloride and potassium chloride powder begin slow fusing;
4) treat that solid-state barium chloride and potassium chloride powder all are molten into fluid liquid salt 7, controller control stirring motor starts automatically, and fluid liquid salt 7 is stirred;
5) set through accurate temperature controller and want the temperature that reaches, control electric heater 9 is regulated rule according to PID and is exported corresponding heat, the fluid liquid salt 7 in the container is heated to the temperature of setting, and keeps stable;
6) accurate temperature controller guarantees fluid liquid salt 7 temperature stabilizations through regulating heating power, and fluctuation range is less than 0.01 ℃ up and down; Stirring motor drives stirrer 8 promotion fluid liquid salt 7 and in entire container, circulates, and guarantees that each position has a narrow range of temperature in 0.01 degree centigrade, finally forms a high-precision temperature source, can satisfy accurate temperature correction demand.
The innovation part of the utility model is:
The inorganic salts that the utility model is mentioned are not moisture, and the back phase transformation of being heated is in a liquid state, and is operated in 550 ℃～880 ℃, realized the temperature source of the high uniformity stability that high temperature is following 550 ℃～880 ℃.
It has two main points:
1 has found a kind of actuating medium, and this medium at room temperature is a solid state powder, is molten into the medium that has than high fluidity under the high temperature.And the medium that middle low temperature thermostat bath uses is in a liquid state always.
2 independent design one covering device, can the solid state medium heat fused be become liquid, then with in the similar mode of low temperature thermostat bath realize high-precision temperature field.(middle low temperature thermostat bath directly uses liquid medium, can't solids be molten into liquid state).
Be with the different of original device:
This device is operated in 550 ℃～880 ℃, and temperature high uniformity, high stability;
Middle low temperature thermostat bath also can be realized high uniformity and high stability, but can only work below 300 ℃; Tubular furnace can be 550 ℃～880 ℃ section work, but warm field uniformity is not high, poor stability.
The utility model adopts unique medium prescription (barium chloride and potassium chloride powder evenly mixed by 50%: 50%), utilizes the back liquefiable of being heated of this potpourri, and mobile the enhancing realized uniform temperature field.
The utility model passes through to adopt technique scheme, compared with prior art,
Claims (1)
1. implement device 550 ℃～880 ℃ of following temperature source; Comprise container; It is characterized in that: be provided with in the test chamber of container and the working chamber and fill full fluid liquid salt; Be provided with standard thermometer, calibrated thermometer and electric mixer in the container, the container bottom is provided with electric heater, and electric heater links to each other with temperature controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203098291U CN202221346U (en) | 2011-08-24 | 2011-08-24 | Realization device under temperature source of 550 DEG C to 880 DEG C |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203098291U CN202221346U (en) | 2011-08-24 | 2011-08-24 | Realization device under temperature source of 550 DEG C to 880 DEG C |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202221346U true CN202221346U (en) | 2012-05-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203098291U Expired - Fee Related CN202221346U (en) | 2011-08-24 | 2011-08-24 | Realization device under temperature source of 550 DEG C to 880 DEG C |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202221346U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384801A (en) * | 2011-08-24 | 2012-03-21 | 山东省计量科学研究院 | Achieving method and device of temperature source under 550-880 DEG C |
-
2011
- 2011-08-24 CN CN2011203098291U patent/CN202221346U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384801A (en) * | 2011-08-24 | 2012-03-21 | 山东省计量科学研究院 | Achieving method and device of temperature source under 550-880 DEG C |
| CN102384801B (en) * | 2011-08-24 | 2013-01-16 | 山东省计量科学研究院 | Achieving method and device of temperature source under 550-880 DEG C |
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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: 20120516 Termination date: 20120824 |