CN210243034U - Calibration device for working instrument of thermal power plant - Google Patents
Calibration device for working instrument of thermal power plant Download PDFInfo
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- CN210243034U CN210243034U CN201921341682.7U CN201921341682U CN210243034U CN 210243034 U CN210243034 U CN 210243034U CN 201921341682 U CN201921341682 U CN 201921341682U CN 210243034 U CN210243034 U CN 210243034U
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- constant temperature
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- heat preservation
- calibration
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Abstract
The utility model discloses a work instrument calibrating device of steam power plant relates to thermometer calibration technical field, and it includes the shell, be provided with the liquid tank in the shell, it has the constant temperature medium to fill in the liquid tank, the constant temperature medium heats the accuse temperature through heating device, has placed the calibration cup on the notch of liquid tank, the bottom of calibration cup is immersed in the constant temperature medium, offer the round hole that is used for inserting the thermometer on the notch wall in liquid tank, the thermometer inserts in the constant temperature medium through the round hole, the shell top is provided with interior heat preservation door and outer heat preservation door, interior heat preservation door and outer heat preservation door all set up with the shell is articulated, and the pin joint of interior heat preservation door and outer heat preservation door is located the both sides of shell respectively. The utility model provides a work instrument calibrating device of steam power plant has the advantage that the cost is low, measurement accuracy is high.
Description
Technical Field
The utility model relates to a thermometer calibration technical field, more specifically say, it relates to a work instrument calibrating device of steam power plant.
Background
A series of working meters, such as temperature meters, are frequently used during the working process of the thermal power plant, and the working meters need to be calibrated before being used, so that the accuracy during the use process is ensured.
The calibrating device of the temperature measuring meter who appears in the existing market all has certain defect, and accurate calibrating device cost is expensive, and the calibrating device measurement accuracy that the cost is low, can't satisfy the user demand.
Therefore, a new solution is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
To current technical problem, an object of the utility model is to provide a work instrument calibrating device of steam power plant, it has the advantage that the cost is low, measurement accuracy is high.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a work instrument calibrating device of steam power plant, includes the shell, be provided with the liquid groove in the shell, it has constant temperature medium to fill in the liquid groove, constant temperature medium heats the accuse temperature through heating device, has placed the calibration cup on the notch of liquid groove, the bottom of calibration cup is soaked in constant temperature medium, offer the round hole that is used for inserting the thermometer on the notch wall in liquid groove, the thermometer inserts in constant temperature medium through the round hole, the shell top is provided with interior heat preservation door and outer heat preservation door, interior heat preservation door and outer heat preservation door all set up with the shell is articulated, and the pin joint of interior heat preservation door and outer heat preservation door is located the both sides of shell respectively.
Through adopting above-mentioned technical scheme, heat the constant temperature medium through heating device, the accessible thermometer reading obtains the temperature of constant temperature medium, the bottom of calibration cup is soaked in the constant temperature medium, the thermometer that will need be calibrated is placed in the calibration cup, can calibrate the thermometer, whole device cost is lower and convenient operation, placed the calibration cup from the shell top by the calibration thermometer, because the shell top is provided with interior heat preservation door and outer heat preservation door, double-deck heat preservation door can carry out fine heat preservation to the constant temperature medium, make the thermometer measuring temperature accuracy unchangeable, thereby improve the calibration precision by the calibration thermometer.
Further, the thermal conductivity of the calibration cup is greater than 300W/m.K.
Through adopting above-mentioned technical scheme, adopt the great calibration cup of coefficient of heat conductivity for the temperature and the temperature variation that the calibration cup can be fine and timely reflect the constant temperature medium, thereby the temperature reading of thermometer is more accurate, makes the calibration data of being calibrated the thermometer more accurate.
Furthermore, the inner heat-preservation door and the outer heat-preservation door are both provided with observation windows which are positioned on the top sides of the calibration cup and the thermometer.
Through adopting above-mentioned technical scheme, through setting up the observation window, will be placed in the calibration cup by the calibration thermometer after, close outer heat preservation door and interior heat preservation door, can directly just can observe the temperature registration of thermometer in the shell and by the calibration thermometer through the observation window, need not to open outer heat preservation door and interior heat preservation door, improve calibration data precision.
Furthermore, a water inlet and a water outlet are arranged on one side face of the shell, the water inlet and the water outlet are communicated with the inside of the liquid tank, and the water inlet and the water outlet are sealed by a heat insulation sleeve.
Through adopting above-mentioned technical scheme, the constant temperature medium can adopt water, alcohol or kerosene, and the temperature range of different constant temperature media is all inequality, but the thermometer of different temperature ranges of different constant temperature media calibration promptly, through setting up water inlet and delivery port, directly replaces the constant temperature medium in the liquid tank, need not the liquid tank of taking out, convenient operation.
Further, a stirrer is further arranged in the liquid tank, the stirrer is located at the bottom of the liquid tank and is immersed in the constant-temperature medium, and the stirrer is controlled to be started and stopped by an external power supply.
Through adopting above-mentioned technical scheme, through setting up the agitator in the liquid tank, the heater during operation, the agitator stirs constant temperature medium for constant temperature medium can rapid heating up, and in addition in calibration work, the agitator stirs constant temperature medium, makes constant temperature medium can not produce the too high or low condition of local temperature, improves the calibration accuracy of thermometer.
Furthermore, the heating device comprises a heating pipe, a heating resistance wire is arranged in the heating pipe, the heating resistance wire is connected with an external power supply, and the heating pipe is immersed in a constant-temperature medium.
Through adopting above-mentioned technical scheme, the heating pipe submergence can carry out quick and stable heating to the steady medium in the constant temperature medium, excellent in use effect, and the cost of manufacture is lower.
Further, a heat insulation layer is arranged between the shell and the liquid tank, the heat insulation layer wraps the periphery of the liquid tank, and the thickness of the heat insulation layer is 1-2 cm.
Through adopting above-mentioned technical scheme, set up the heat preservation in liquid tank periphery for the constant temperature medium in the liquid tank can not produce the phenomenon that the heat scatters and disappears fast, guarantees that the temperature of constant temperature medium can not produce too big change in the calibration course of operation, thereby improves the calibration accuracy of thermometer.
Furthermore, a vacuum layer is arranged between the shell and the heat-insulating layer, and the vacuum layer is wrapped on the periphery of the heat-insulating layer.
Through adopting above-mentioned technical scheme, the vacuum layer complements each other with the heat preservation, plays thermal-insulated heat retaining effect, further makes constant temperature medium keep warm and basically not lose the heat, improves the calibration accuracy of thermometer.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) by arranging the inner heat-preservation door and the outer heat-preservation door, the double-layer heat-preservation door can well preserve heat of a constant-temperature medium, so that the temperature measured by the thermometer is accurate and unchanged, and the calibration precision of the calibrated thermometer is improved;
(2) by arranging the observation window, the temperature readings of the thermometer and the calibrated thermometer in the shell can be observed directly through the observation window by closing the outer heat preservation door and the inner heat preservation door after the calibrated thermometer is placed in the calibration cup, the outer heat preservation door and the inner heat preservation door do not need to be opened, and the accuracy of calibration data is improved;
(3) through setting up agitator, heat preservation and vacuum layer, guarantee that constant temperature medium does not basically lose the heat in the liquid tank, improve thermometer calibration temperature, and this calibrating device cost is lower.
Drawings
FIG. 1 is an overall schematic view of a calibration device for a work meter of a thermal power plant;
FIG. 2 is a schematic structural diagram of a calibration device for thermal power plant working instruments when an outer insulation board and an inner insulation board are opened;
FIG. 3 is a schematic structural diagram of the calibration device for the working instruments of the thermal power plant after the liquid tank and the calibration cup are taken out.
Reference numerals: 1. a housing; 2. a liquid tank; 3. calibrating the cup; 4. a circular hole; 5. a thermometer; 6. an inner heat-insulating door; 7. an outer insulating door; 8. an observation window; 9. a water inlet; 10. a water outlet; 11. a thermal insulation sleeve; 12. a stirrer; 13. heating a tube; 14. a heat-insulating layer; 15. and (4) a vacuum layer.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in figures 1 and 2, the calibration device for the working instruments of the thermal power plant comprises a shell 1, wherein a liquid tank 2 is arranged in the shell 1, a calibration cup 3 with a heat conduction coefficient larger than 300W/m.k is placed on a notch of the liquid tank 2, the bottom of the calibration cup 3 is immersed in a constant temperature medium, a circular hole 4 for inserting a thermometer 5 is formed in the tank wall of the liquid tank 2, and the thermometer 5 used for comparison is inserted into the constant temperature medium through the circular hole 4.
A heat insulation layer 14 and a vacuum layer 15 are arranged between the liquid tank 2 and the shell 1, the thickness of the heat insulation layer 14 is 2cm and is tightly attached to the liquid tank 2, and the vacuum layer 15 is tightly attached to the shell 1. The top of shell 1 is provided with outer heat preservation door 7 and interior heat preservation door 6, and outer heat preservation door 7 all articulates with shell 1 with interior heat preservation door 6, and two pin joints are located the both sides of shell 1 respectively. The observation window 8 has been seted up on interior heat preservation door 6 and the outer heat preservation door 7, and the observation window 8 is located the top side of thermometer 5 and calibration cup 3 to can observe the inside condition of shell 1 through observation window 8, need not to open interior heat preservation door 6 and outer heat preservation door 7, it is comparatively convenient to operate.
As shown in fig. 1 and 3, a water inlet 9 and a water outlet 10 are provided on one side surface of the housing 1, and both the water inlet 9 and the water outlet 10 are communicated with the inside of the liquid tank 2. And the water inlet 9 and the water outlet 10 are sealed and threaded by the insulating sleeve 11. Constant temperature medium is injected into the liquid tank 2 through the water inlet 9, and the constant temperature medium in the embodiment can adopt pure water. Different thermometers have different measuring ranges, and the liquid in the liquid tank 2 can be replaced through the water inlet 9 and the water outlet 10, so that thermometers with different ranges can be calibrated. A heating device for heating a constant temperature medium is arranged in the liquid tank 2, the heating device is a heating pipe 13 with a heating resistance wire inside, and the heating resistance wire is communicated with a power supply outside the shell 1. The liquid tank 2 is also internally provided with a stirrer 12, the stirrer 12 is positioned at the bottom of the liquid tank 2 and is immersed in a constant temperature medium, and the stirrer 12 is controlled by an external power supply to start and stop. The stirrer 12 can be arranged to ensure that the temperature of the whole constant-temperature medium is uniformly and rapidly increased and the temperature of the whole constant-temperature medium is uniform.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A calibration device for a working instrument of a thermal power plant comprises a shell (1) and is characterized in that, a liquid tank (2) is arranged in the shell (1), a constant temperature medium is filled in the liquid tank (2), the constant temperature medium is heated by a heating device for controlling the temperature, a calibration cup (3) is arranged on the opening of the liquid tank (2), the bottom of the calibration cup (3) is immersed in a constant temperature medium, a round hole (4) for inserting a thermometer (5) is formed on the wall of the notch of the liquid tank (2), the thermometer (5) is inserted into a constant temperature medium through a round hole (4), an inner heat preservation door (6) and an outer heat preservation door (7) are arranged at the top of the shell (1), the inner heat-insulating door (6) and the outer heat-insulating door (7) are both hinged with the shell (1), and the hinge points of the inner heat preservation door (6) and the outer heat preservation door (7) are respectively positioned at two sides of the shell (1).
2. The thermal power plant work instrument calibration device according to claim 1, wherein the thermal conductivity of the calibration cup (3) is greater than 300W/m-K.
3. The calibration device for the working instruments of the thermal power plant as claimed in claim 1, wherein the inner thermal insulation door (6) and the outer thermal insulation door (7) are both provided with observation windows (8), and the observation windows (8) are positioned at the top sides of the calibration cup (3) and the thermometer (5).
4. The calibration device for the working instrument of the thermal power plant as claimed in claim 3, wherein a water inlet (9) and a water outlet (10) are arranged on one side surface of the housing (1), the water inlet (9) and the water outlet (10) are both communicated with the inside of the liquid tank (2), and the water inlet (9) and the water outlet (10) are hermetically arranged by a heat insulation sleeve (11).
5. The calibration device for the working instrument of the thermal power plant as claimed in claim 1, wherein an agitator (12) is further arranged in the liquid tank (2), the agitator (12) is positioned at the bottom of the liquid tank (2) and is immersed in a constant temperature medium, and the agitator (12) is controlled by an external power supply to be started and stopped.
6. The thermal power plant work instrument calibration device as claimed in claim 1, wherein the heating device comprises a heating pipe (13), a heating resistance wire is arranged in the heating pipe (13), the heating resistance wire is connected with an external power supply, and the heating pipe (13) is immersed in a constant temperature medium.
7. The calibration device for the working instruments of the thermal power plant according to claim 1, characterized in that an insulating layer (14) is arranged between the housing (1) and the liquid tank (2), the insulating layer (14) is wrapped on the periphery of the liquid tank (2), and the thickness of the insulating layer (14) is 1-2 cm.
8. The thermal power plant work instrument calibration device according to claim 1, characterized in that a vacuum layer (15) is arranged between the housing (1) and the heat insulation layer (14), and the vacuum layer (15) is wrapped on the periphery of the heat insulation layer (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921341682.7U CN210243034U (en) | 2019-08-16 | 2019-08-16 | Calibration device for working instrument of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921341682.7U CN210243034U (en) | 2019-08-16 | 2019-08-16 | Calibration device for working instrument of thermal power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210243034U true CN210243034U (en) | 2020-04-03 |
Family
ID=69963355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921341682.7U Active CN210243034U (en) | 2019-08-16 | 2019-08-16 | Calibration device for working instrument of thermal power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210243034U (en) |
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2019
- 2019-08-16 CN CN201921341682.7U patent/CN210243034U/en active Active
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