CN209979097U - Thermostatic bath for field calibration of temperature measuring instrument of power station - Google Patents
Thermostatic bath for field calibration of temperature measuring instrument of power station Download PDFInfo
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- CN209979097U CN209979097U CN201921210857.0U CN201921210857U CN209979097U CN 209979097 U CN209979097 U CN 209979097U CN 201921210857 U CN201921210857 U CN 201921210857U CN 209979097 U CN209979097 U CN 209979097U
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- partition plate
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- magnetic stirring
- bath
- calibration
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Abstract
The utility model discloses a thermostatic bath for site calibration of a power station temperature measuring instrument with high calibration degree and good safety, which comprises a closed bath body, wherein a calibration equipment connector is covered on the closed bath body, and a diaphragm plate which divides the bath body into a medium bath and an empty bath from top to bottom is arranged in the closed bath body; a vertical partition plate with a medium channel up and down is arranged in the medium tank, the calibration equipment connecting port is positioned on one side of the vertical partition plate, a spiral heater is fixed above the other side of the vertical partition plate, a stirring impeller is arranged below the spiral heater, and the stirring impeller is connected with a magnetic stirring driven wheel rotationally connected to the transverse partition plate through a vertical stirring shaft; and a magnetic stirring driving wheel positioned below the magnetic stirring driven wheel is arranged in the empty groove, and the magnetic stirring driving wheel is connected with an output shaft of a stirring motor fixed in the empty groove.
Description
Technical Field
The utility model relates to an auxiliary device is used in the on-spot calibration of power station temperature controller, especially a constant temperature bath is used in on-spot calibration of power station temperature measuring instrument that calibration effect and security are good.
Background
The power station thermometric instruments need to be calibrated before installation or during blackout maintenance. Since the meters cannot be moved and only field calibration can be performed at the power station, a portable thermostatic bath with a built-in liquid medium is required. The existing thermostatic bath is generally adopted to arrange a heating element, a stirring impeller and a calibration equipment connecting port in a bath body without any partition. When the temperature-sensing probe is used, the temperature-sensing probe of the temperature-sensing instrument is inserted into a liquid medium contained in the tank body through the calibration equipment connecting port, the heater and the stirring impeller are started, and the temperature-sensing instrument is calibrated after the temperature of the liquid medium in the tank body is basically balanced. The temperature-sensing probe has the disadvantages that the medium in the working area of the temperature-sensing probe is greatly influenced by the heater, the medium temperature in the area close to the heater is high, the medium temperature in the area far away from the heater is relatively low, namely the temperature field in the vertical direction is not uniform, the temperature detection result changes along with the insertion depth of the temperature-sensing probe of the temperature-sensing instrument, and the calibration effect is influenced. In addition, the motor shaft is connected with the impeller in a perforation way, high-temperature media are easy to leak and splash, and potential safety hazards exist.
Disclosure of Invention
The utility model relates to a solve the above-mentioned technical problem that prior art exists, provide a constant temperature bath is used in on-the-spot calibration of power station temperature measuring instrument that the calibration degree is high and the security is good.
The technical solution of the utility model is that: a thermostatic bath for site calibration of a temperature measuring instrument of a power station comprises a closed bath body, wherein a calibration equipment connecting port is covered on the closed bath body, and a transverse partition plate which divides the bath body into a medium bath and an empty bath from top to bottom is arranged in the closed bath body; a vertical partition plate with a medium channel up and down is arranged in the medium tank, the calibration equipment connecting port is positioned on one side of the vertical partition plate, a spiral heater is fixed above the other side of the vertical partition plate, a stirring impeller is arranged below the spiral heater, and the stirring impeller is connected with a magnetic stirring driven wheel rotationally connected to the transverse partition plate through a vertical stirring shaft; and a magnetic stirring driving wheel positioned below the magnetic stirring driven wheel is arranged in the empty groove, and the magnetic stirring driving wheel is connected with an output shaft of a stirring motor fixed in the empty groove.
The utility model discloses can make liquid medium at the medium inslot at impeller, erect baffle and medium channel's effect under the annular circulation, the heating dispersity is good, makes liquid medium level and vertical direction temperature field error in 0.1 ℃, and the temperature measuring result is little along with the change of temperature measuring instrument temperature sensing probe depth of insertion, has guaranteed the calibration effect. The magnetic stirring device is not provided with a motor shaft through hole, so that the leakage of liquid media in the carrying process is avoided, and the potential safety hazards such as scalding caused by the leakage of high-temperature media can be particularly avoided.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is an application effect diagram of the embodiment of the present invention.
Detailed Description
The utility model discloses a thermostatic bath for field calibration of a power station temperature measuring instrument, as shown in figure 1, comprises a closed cell body 1, a calibration device connector 2 is covered on the closed cell body 1, and a diaphragm plate 3 which divides the cell body 1 into a medium groove 1-1 and an empty groove 1-2 from top to bottom is arranged in the closed cell body 1; the medium tank 1-1 is filled with liquid medium and is provided with a vertical clapboard 5 with a medium channel 4 at the upper part and the lower part, the calibration equipment connecting port 2 is positioned at one side of the vertical clapboard 5, a spiral heater 6 is fixed above the other side of the vertical clapboard 5, a stirring impeller 7 is arranged below the spiral heater 6, and the stirring impeller 7 is connected with a magnetic stirring driven wheel 9 which is rotationally connected with the transverse clapboard 3 through a vertical stirring shaft 8; a magnetic stirring driving wheel 10 is arranged in the empty groove 1-2 and is positioned below the magnetic stirring driven wheel 9, and the magnetic stirring driving wheel 10 is connected with an output shaft of a stirring motor 11 fixed in the empty groove 1. The stirring motor 11 and the controller of the spiral heater 6 are equivalent to those of the prior art.
When in use, as shown in figure 2, the temperature sensing probe 13 of the temperature measuring instrument 12 is inserted into the liquid medium and fixed, the spiral heater 6 and the stirring motor 11 are started, and the liquid medium is calibrated after the temperature is balanced.
Claims (1)
1. The utility model provides a power station temperature measuring instrument is thermostatic bath for on-spot calibration, has closed cell body (1), seals cell body (1) upper cover and has calibration equipment connector (2), its characterized in that: a transverse partition plate (3) which divides the tank body (1) into a medium tank (1-1) and an empty tank (1-2) from top to bottom is arranged in the closed tank body (1); a vertical partition plate (5) with a medium channel (4) at the upper part and the lower part is arranged in the medium groove (1-1), the calibration equipment connecting port (2) is positioned at one side of the vertical partition plate (5), a spiral heater (6) is fixed above the other side of the vertical partition plate (5), a stirring impeller (7) is arranged below the spiral heater (6), and the stirring impeller (7) is connected with a magnetic stirring driven wheel (9) which is rotatably connected to the transverse partition plate (3) through a vertical stirring shaft (8); a magnetic stirring driving wheel (10) positioned below the magnetic stirring driven wheel (9) is arranged in the empty groove (1-2), and the magnetic stirring driving wheel (10) is connected with an output shaft of a stirring motor (11) fixed in the empty groove (1-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921210857.0U CN209979097U (en) | 2019-07-30 | 2019-07-30 | Thermostatic bath for field calibration of temperature measuring instrument of power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921210857.0U CN209979097U (en) | 2019-07-30 | 2019-07-30 | Thermostatic bath for field calibration of temperature measuring instrument of power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209979097U true CN209979097U (en) | 2020-01-21 |
Family
ID=69286272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921210857.0U Active CN209979097U (en) | 2019-07-30 | 2019-07-30 | Thermostatic bath for field calibration of temperature measuring instrument of power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209979097U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4148405A1 (en) * | 2021-09-08 | 2023-03-15 | Ametek Denmark A/s | System for calibrating a sensor |
-
2019
- 2019-07-30 CN CN201921210857.0U patent/CN209979097U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4148405A1 (en) * | 2021-09-08 | 2023-03-15 | Ametek Denmark A/s | System for calibrating a sensor |
| WO2023036816A1 (en) * | 2021-09-08 | 2023-03-16 | Ametek Denmark A/S | System for calibrating a sensor |
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