CN208765873U - A kind of bi-metal temperature meter checking device - Google Patents
A kind of bi-metal temperature meter checking device Download PDFInfo
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- CN208765873U CN208765873U CN201821431238.XU CN201821431238U CN208765873U CN 208765873 U CN208765873 U CN 208765873U CN 201821431238 U CN201821431238 U CN 201821431238U CN 208765873 U CN208765873 U CN 208765873U
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- checking device
- temperature meter
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Abstract
The utility model discloses a kind of bi-metal temperature meter checking devices, it include: container, standard couple, heater and temperature controller, the container is for containing heat-conduction medium, the heat-conduction medium is used to heat the bimetallic thermometer verified, and the injection pipe for adding the heat-conduction medium is provided on the container；The test side of the standard couple is located in the heat-conduction medium；The heater is set in the container, for heating for the heat-conduction medium；The temperature controller setting is connect in the container exterior, and with the heater and standard couple, and the temperature value situation that the temperature controller is fed back according to standard couple controls the working condition of the heater.The calibration equipment structure of this programme is simple, easy to use, and checking precision is higher, avoids and examines outside bimetallic thermometer, has saved Expenses of laboratory examination.
Description
Technical field
The utility model relates to industrial temperature detection utensil technical field, in particular to a kind of bimetallic thermometer verification
Device.
Background technique
Modern large-size thermal power plant is just gradually moving towards the development of clean and environmental protection, high scientific and technological level, in thermal temperature
It is also such in terms of measuring point.To avoid polluting environment after mercurial thermometer is damaged, thermal power plant's thermal temperature measuring point display instrument on the spot
Table mostly uses bimetallic thermometer.
Bimetallic thermometer together the different metallic combination of two kinds of linear expansion coefficients, fix, and works as temperature change by one end
When, two kinds of thermal expansion metal differences drive throw of pointer to indicate temperature.Bimetallic thermometer is in a kind of be suitble to, low temperature is surveyed
The measuring instrument of amount has many advantages, such as that waterproof, vibration resistance, easily reading, mercury-free are harmful, cheap.
Currently, bimetallic thermometer detection and processing mode are as follows: a small number of important bi-metal temperatures during thermal power unit operation
Meter send outer inspection with maintenance down, and Expenses of laboratory examination is high, and bimetallic thermometer, which goes wrong, during unit is run will directly replace Singapore dollar
Part, it is very uneconomical.
Therefore, how the bi-metal temperature that a kind of structure is simple and convenient to operate, checking precision is high, Expenses of laboratory examination is low is provided
Meter checking device becomes those skilled in the art's technical problem urgently to be resolved.
Utility model content
In view of this, the present invention provides a kind of bi-metal temperature meter checking devices, and to reach, structure is simple, operates
Effect convenient, checking precision is high, while factory being facilitated to verify bimetallic thermometer, save Expenses of laboratory examination.
To achieve the above object, the utility model provides the following technical solutions:
A kind of bi-metal temperature meter checking device, comprising:
Container, for containing heat-conduction medium, the heat-conduction medium is for adding the bimetallic thermometer verified
Heat is provided with the injection pipe for adding the heat-conduction medium on the container；
The test side of standard couple, the standard couple is located in the heat-conduction medium；
Heater is set in the container, for heating for the heat-conduction medium；
Temperature controller, the temperature controller setting are connect in the container exterior, and with the heater and standard couple, institute
State the working condition that the temperature value situation that temperature controller is fed back according to standard couple controls the heater.
It preferably, further include overflow pipe for overflow, on the side of one end of the overflow pipe and the container
End connection, the other end and the reservoir for containing overflowing liquid.
Preferably, further include blender for stirring the heat-conduction medium, the stirring end of the blender is located at institute
It states in heat-conduction medium, the other end connects on the container.
Preferably, the container side is provided with the transparent observation tube with the reservoir, and the observation tube is along institute
The short transverse setting of container is stated, the observation tube is used to observe the liquid level in the container.
Preferably, the top and bottom end of the observation tube are provided with liquid level isolation manually operated door.
Preferably, mercurial thermometer is additionally provided in the container, the mercurial thermometer is fixedly connected on the container
On, the thermometric end of the mercurial thermometer is located in the container, and temperature scale position is located at outside the container.
Preferably, the inner bottom surface of the container is inclined-plane, and the extreme lower position on the inclined-plane is provided with media outlet, described
Media outlet position is provided with gate out switch.
Preferably, the included angle A of the inclined-plane and horizontal plane is 5 ° -8 °.
Preferably, the heat-conduction medium is water or fire resistant oil.
Preferably, the container is metal enclosed container；Entry switch is provided on the injection pipe, the injection pipe
Entry position is provided with import funnel.
It can be seen from the above technical proposal that a kind of bi-metal temperature meter checking device provided by the utility model, passes through
Container is set, standard hot even summation heater is set in container, is connect by temperature controller with standard couple, temperature controller control
The heating of heater, realizes the verification to the bimetallic thermometer being placed in container, and the calibration equipment of this programme only needs
The measurement temperature of setting standard temperature measuring equipment and bimetallic thermometer to be verified compares in container, and structure is simple,
It does not need that the inspection body to profession is sent to test, can test in factory, it is easy to use, by using standard hot
The medium temperature of couple bimetallic thermometer insertion is detected, and checking precision, inspection dress provided by the utility model are improved
It sets and conveniently verifies bimetallic thermometer in factory, saved Expenses of laboratory examination.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the overlooking structure diagram of bi-metal temperature meter checking device provided by the embodiment of the utility model；
Fig. 2 is main view (removal front baffle) knot of bi-metal temperature meter checking device provided by the embodiment of the utility model
Structure schematic diagram；
Fig. 3 is the left view structural representation of bi-metal temperature meter checking device provided by the embodiment of the utility model.
1, standard couple, 2, mercurial thermometer, 3, blender, 4, injection pipe, 41, entry switch, 42, import funnel,
5, bimetallic thermometer, 6, temperature controller, 7, container, 8, heater, 9, overflow pipe, 10, gate out switch, 11, inner bottom surface,
12, observation tube, 121, liquid level isolation manually operated door, A is angle.
Specific embodiment
The utility model discloses a kind of bi-metal temperature meter checking devices, are simple and convenient to operate, are verified with reaching structure
Effect with high accuracy, while factory being facilitated to verify bimetallic thermometer, save Expenses of laboratory examination.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
It please refers to shown in Fig. 1-Fig. 3, the utility model discloses a kind of bi-metal temperature meter checking devices, comprising: container
7, standard couple 1, heater 8 and temperature controller 6.Container 7 is used to contain the heat-conduction medium of transmitting heat, sets on container 7
It is equipped with the injection pipe 4 for adding the heat-conduction medium, the heat-conduction medium is used for the bi-metal temperature verified
Meter heating.The test side of standard couple 1 is located in the heat-conduction medium in container 7, is situated between for measuring the heat transfer
The temperature of matter.Heater 8 is set in container 7, for heating for the heat-conduction medium.Temperature controller 6 is arranged outside container 7
Face, temperature controller 6 are connect with heater 8 and standard couple 1.The temperature value situation control that temperature controller 6 is fed back according to standard couple 1
The working condition of heater 8 processed.By using standard couple 1, the temperature of the heat-conduction medium can be more accurately obtained.
Standard couple 1 and heater 8 is arranged by setting container 7 in this programme in container 7, passes through temperature controller 6 and mark
Quasi- thermocouple 1 connects, and temperature controller 6 controls the heating of heater 8, and the temperature of temperature controller 6 is fed back to by contrast standard thermocouple 1
The difference of the displays temperature measured with bimetallic thermometer 5 realizes the verification to the bimetallic thermometer 5 being placed in container 7.
The calibration equipment of this programme only needs to be arranged in container the measurement temperature of standard temperature measuring equipment and bimetallic thermometer 5 to be verified
Degree compares, and structure is simple, does not need that the inspection body to profession is sent to test, can test in factory,
It is easy to use, it is detected by using the medium temperature that standard couple 1 is inserted into bimetallic thermometer 5, improves verification
Precision, verifying attachment provided by the utility model is convenient to verify bimetallic thermometer in factory, has saved Expenses of laboratory examination.
It in one embodiment, further include overflow pipe 9 for overflow, one end of overflow pipe 9 and the side of container 7
The connection of face upper end, the other end and the reservoir for containing overflowing liquid.By the way that overflow pipe 9 is arranged, so that being filled when in container 7
When more heat-conduction mediums and when heat-conduction medium described in heating process expands with heat and contract with cold, the heat-conduction medium meeting
Through the direct overflow of overflow pipe 9 into external container containing.The gas heated in heating process can also pass through overflow pipe 9
Discharge.Wherein, overflow port, conveniently by the limit warning overflow of liquid level height, is put and ended to waste, while to add away from the position container top 50mm
Medium thermally expands leaving space when hot.
Further, calibration equipment further includes the blender 3 for stirring the heat-conduction medium, the stirring of blender 3
End is located in the heat-conduction medium, and the other end is connected on the top cover of container 7, and blender 3 is electrically connected with temperature controller 6, temperature control
Instrument 6 is used to control the work of blender 3.During heater 8 heats, blender 3 is constantly in the working condition of stirring,
Guarantee the heat-conduction medium homogeneous heating in container 7.
In order to make the heat-conduction medium homogeneous heating, in one embodiment, the stirring end of blender 3 and heater
8 heating position is all set in the center of container 7, and the heating position of heater 8 is in the underface for stirring end of blender 3
Heating, blender 3 stir each region for making even heat be transferred to container 7.
In another embodiment, 7 side of container is provided with the transparent observation tube 12 being connected to the inner cavity of container 7,
Observation tube 12 is arranged along the short transverse of container 7, and observation tube 7 is used to observe the liquid level in container 7, knows liquid for convenience
Position highly, is provided with scale on observation tube 12.Wherein, the top and bottom end of observation tube 7 are provided with liquid level isolation manually operated door
121.In the heat-conduction medium filling process, opens liquid level and manually operated door 121 is isolated, appearance is learnt by the scale on observation tube 12
The liquid level of the heat-conduction medium in device 7.After the completion of the heat-conduction medium filling, closes liquid level and manually operated door is isolated
121, especially during heating, liquid level isolation manually operated door 121 has to be in close state, and prevents the heat-conduction medium
Gasify after heating evaporation and overflows.
In order to preferably verify to the linear of bimetallic thermometer 5, mercurial thermometer 2, water are additionally provided in container 7
Silver-colored thermometer 2 is fixedly connected on the top cover of container 7, and the thermometric end of mercurial thermometer 2 is located in container 7, temperature scale position
Outside container 7, facilitate observation temperature value.In heating process, mercurial thermometer 2 and standard couple 1 are used cooperatively, and make to examine
The heating temperature of the heat-conduction medium measured is more acurrate.
Further, in order to guarantee that the medium in container 7 is all discharged when not in use, the inner bottom surface 11 of container 7
For inclined-plane, the extreme lower position on inclined-plane is provided with media outlet, and the media outlet position is provided with gate out switch 10.Gate out switch
10 for controlling the opening and closing of the media outlet.Wherein, in one embodiment, the included angle A of the inclined-plane and horizontal plane is
7 °, the heat-conduction medium in convenient container 7 smoothly flows out.
Specifically, the heat-conduction medium is water or fire resistant oil.For verifying the bimetallic thermometer 5 of 0-100 DEG C of range
When, the heat-conduction medium is water or fire resistant oil, described when being greater than 100 DEG C of bimetallic thermometer 5 for verifying maximum range
Heat-conduction medium is fire resistant oil.The fire resistant oil is a kind of pure phosphoric acid rouge liquid of fire-resistant, and flame retardancy is the most prominent spy of phosphate
One of property, it can also burn at extreme temperatures, flash-point is 700 DEG C, but its not propagating flame, or can be quickly from going out after kindling, phosphorus
Acid esters has high thermo oxidative stability.
Wherein, container 7 not only facilitates processing and fabricating by using metal enclosed container for metal enclosed container, moreover it is possible to anti-
Only in the heat-conduction medium heating process heat scatter and disappear, it is energy saving.Standard couple 1 is through national related measurement unit
The high-accuracy temperature instrument of certification.
In order to enable the heat-conduction medium can smoothly be added in container 7, the entry position of injection pipe 4 is provided with import
Funnel 42.It is overflowed to prevent from gasifying after the heat-conduction medium heating evaporation, is provided with entry switch 41 on injection pipe 4, it is described
Entry switch 41 is closed after the completion of heat-conduction medium filling.
For the accuracy for guaranteeing measurement, the depth that standard couple 1 is inserted into the heat-conduction medium is 1/3~1/2.
This calibration equipment is widely applicable (can verify 90% or more bimetallic thermometer), easy to operate, can quickly judge existing
Whether field bimetallic thermometer 5 is qualified, effectively avoids the wasting of resources.
In one embodiment, when detection bimetallic thermometer 5 is linear, bimetallic thermometer 5 to be measured setting is being held
In device 7, standard couple 1 is arranged in relevant temperature, and records；Temperature controller 6 not up to set temperature when, temperature controller 6 with
In 8 connection line of heater opened point closure, starting heater 8 heat the heat-conduction medium, meanwhile, temperature controller 6 with stir
The opened point closure starting blender 3 in 3 connection line of device is mixed, homogeneous heating is guaranteed with this.When the temperature of medium in container 7 reaches
To setting temperature when, temperature controller 6 will control heater 8 and blender 3 and stop working, comparison bimetallic thermometer 5 at this time
It has been shown that, record calculate error whether in critical field.
In another embodiment, if the bimetallic thermometer 5 of 0-100 DEG C of range of verification, can be selected five calibration points,
Room temperature, 25 DEG C, 50 DEG C, 75 DEG C and 100 DEG C are selected respectively；It is warm when detecting some to prevent heat locally excessively high or temperature over-range
When degree point (such as 50 DEG C), first temperature controller 6 can be arranged under standard point (such as being first arranged 48 DEG C), observe water in heating process
Silver-colored thermometer 2 is stablized after 48 DEG C or so after temperature, and the setting of temperature controller 6 temperature is gradually increased to standard point (50 DEG C).Record
The temperature deviation of each calibration points.
The heat-conduction medium is heated in container 7, thus linearly verifying to bimetallic thermometer 5,
To judge the fine or not degree of the linear region of tested bimetallic thermometer 5, determine whether this dut temperature meter is qualified and whether has
Reuse value.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (10)
1. a kind of bi-metal temperature meter checking device characterized by comprising
Container (7), for containing heat-conduction medium, the heat-conduction medium is for adding the bimetallic thermometer verified
Heat is provided with the injection pipe (4) for adding the heat-conduction medium on the container (7)；
The test side of standard couple (1), the standard couple (1) is located in the heat-conduction medium；
Heater (8) is set in the container (7), for heating for the heat-conduction medium；
Temperature controller (6), the temperature controller (6) setting outside the container (7), and with the heater (8) and standard hot
Even (1) connection, the temperature controller (6) control the heater (8) according to the temperature value situation that the standard couple (1) is fed back
Working condition.
2. bi-metal temperature meter checking device according to claim 1, which is characterized in that further include the overflow for overflow
One end of pipeline (9), the overflow pipe (9) is connected to the side upper end of the container (7), the other end and splendid attire overflowing liquid
Reservoir.
3. bi-metal temperature meter checking device according to claim 1, which is characterized in that further include for stirring the heat
The stirring end of the blender (3) of transmitting medium, the blender (3) is located in the heat-conduction medium, and the other end is connected to institute
It states on container (7).
4. bi-metal temperature meter checking device according to claim 1, which is characterized in that container (7) the side setting
There is the transparent observation tube (12) being connected to the container (7), the observation tube (12) sets along the short transverse of the container (7)
It sets, the observation tube (12) is used to observe the liquid level in the container (7).
5. bi-metal temperature meter checking device according to claim 4, which is characterized in that the top of the observation tube (12)
Liquid level isolation manually operated door (121) is provided with bottom end.
6. bi-metal temperature meter checking device according to claim 1, which is characterized in that also set up in the container (7)
Have mercurial thermometer (2), the mercurial thermometer (2) is fixedly connected on the container (7), the mercurial thermometer (2)
Thermometric end is located in the container (7), and temperature scale position is located at the container (7) outside.
7. bi-metal temperature meter checking device according to claim 1, which is characterized in that the inner bottom of the container (7)
Face (11) is inclined-plane, and the extreme lower position on the inclined-plane is provided with media outlet, and the media outlet position is provided with gate out switch
(10)。
8. bi-metal temperature meter checking device according to claim 7, which is characterized in that the folder on the inclined-plane and horizontal plane
Angle A is 5 ° -8 °.
9. bi-metal temperature meter checking device according to claim 1, which is characterized in that the heat-conduction medium be water or
Fire resistant oil.
10. bi-metal temperature meter checking device according to claim 1, which is characterized in that the container (7) is that metal is close
Close container；
It is provided with entry switch (41) on the injection pipe (4), the entry position of the injection pipe (4) is provided with import funnel
(42)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821431238.XU CN208765873U (en) | 2018-08-31 | 2018-08-31 | A kind of bi-metal temperature meter checking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821431238.XU CN208765873U (en) | 2018-08-31 | 2018-08-31 | A kind of bi-metal temperature meter checking device |
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| Publication Number | Publication Date |
|---|---|
| CN208765873U true CN208765873U (en) | 2019-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821431238.XU Active CN208765873U (en) | 2018-08-31 | 2018-08-31 | A kind of bi-metal temperature meter checking device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111879442A (en) * | 2020-08-12 | 2020-11-03 | 上海精普机电科技有限公司 | Bimetallic thermometer calibration device |
| CN113834579A (en) * | 2021-09-22 | 2021-12-24 | 河南中孚实业股份有限公司 | Constant temperature field collection system is used in verification of double-needle type thermocouple |
-
2018
- 2018-08-31 CN CN201821431238.XU patent/CN208765873U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111879442A (en) * | 2020-08-12 | 2020-11-03 | 上海精普机电科技有限公司 | Bimetallic thermometer calibration device |
| CN111879442B (en) * | 2020-08-12 | 2021-11-16 | 上海精普机电科技有限公司 | Bimetallic thermometer calibration device |
| CN113834579A (en) * | 2021-09-22 | 2021-12-24 | 河南中孚实业股份有限公司 | Constant temperature field collection system is used in verification of double-needle type thermocouple |
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