CN105784160B - Temperature measuring device and method for measuring temperature of inner wall of pipeline - Google Patents
Temperature measuring device and method for measuring temperature of inner wall of pipeline Download PDFInfo
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- CN105784160B CN105784160B CN201410800110.6A CN201410800110A CN105784160B CN 105784160 B CN105784160 B CN 105784160B CN 201410800110 A CN201410800110 A CN 201410800110A CN 105784160 B CN105784160 B CN 105784160B
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- 230000001681 protective effect Effects 0.000 claims abstract description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052802 copper Inorganic materials 0.000 claims abstract description 13
- 239000010949 copper Substances 0.000 claims abstract description 13
- 239000003292 glue Substances 0.000 claims abstract description 6
- 239000012212 insulator Substances 0.000 claims abstract description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 description 10
- 238000005485 electric heating Methods 0.000 description 9
- 238000009529 body temperature measurement Methods 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000001154 acute effect Effects 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention relates to a temperature measuring device for measuring the temperature of the inner wall of a pipeline, which comprises: a thermocouple having a straight thermocouple body and a temperature measuring end inclined with respect to the thermocouple body; the thermocouple comprises a sleeve, a thermocouple body and a temperature measuring end, wherein the inner wall surface of the sleeve defines a cavity, the wall of the sleeve is provided with an opening, the thermocouple body is positioned in the cavity, the temperature measuring end extends out of the opening, and the opening has a preset length along the direction of the central axis of the sleeve; and an elastic force applying part disposed in the sleeve to bias the temperature measuring end toward the inner wall of the pipe. The temperature measuring device further comprises a copper protective sleeve sleeved at the end part of the temperature measuring end, and the copper protective sleeve and the temperature measuring end are fixed through insulating heat-conducting glue. The elastic force applying part is an insulator, or the elastic force applying part is spaced from the copper protective sleeve, and the sleeve is an electric insulating sleeve. The invention also relates to a method for measuring the temperature of the inner wall of a pipeline, which comprises the following steps: the temperature measuring section of the temperature measuring device is placed in the cavity of the pipeline, so that the temperature measuring end of the temperature measuring device is pressed against the inner wall of the pipeline on the basis of the elasticity applying part.
Description
Technical Field
The embodiment of the invention relates to a temperature measuring device and a method for measuring the temperature of the inner wall of a pipeline, in particular to a temperature measuring device and a method for measuring the temperature of the inner wall of an electric heating pipe rod with a small pipe diameter.
Background
In hot fluid tests, particularly heat transfer tests in which an electrical heating rod simulates a fuel assembly, it is necessary to measure the temperature of the heating rod. However, the temperature of the outer wall surface of the heating rod cannot be directly measured because the flow and heat exchange of the fluid are affected. Therefore, only the temperature of the inner wall surface of the heating rod can be measured. However, the inner diameter of the heating rod is usually 5-10 mm, and if thermocouples are arranged at each monitoring point for temperature measurement, the compensation lead wires connected with the thermocouples cannot be accommodated in a narrow space.
The movable temperature measuring mechanism designed for other application occasions in the prior patent can not meet the requirement of measuring the temperature of the inner wall of the heating rod in a thermotechnical test because the space in the electric heating rod is narrow.
Therefore, there is a need to design a special temperature measuring device that can freely move in a narrow space defined by the inner wall of the pipe to measure the temperature of any position of the inner wall. The temperature measuring device needs to be in tight contact with the inner wall of the pipeline. In addition, in the case where the pipe is electrically heated (for example, in the case where the pipe is an electric heating rod), the temperature measuring device is also required to ensure excellent insulating properties. It is also desirable that the thermometric device is not susceptible to damage during long term operation.
Disclosure of Invention
The invention is proposed for measuring the temperature at multiple points of the inner wall of a pipe, which defines a narrow space, for example with a single thermocouple.
According to an aspect of an embodiment of the present invention, there is provided a temperature measuring device that measures a temperature of an inner wall of a pipeline, including: a thermocouple having a straight thermocouple body and a temperature measuring end inclined with respect to the thermocouple body; the thermocouple comprises a sleeve, a thermocouple body and a temperature measuring end, wherein the inner wall surface of the sleeve limits a cavity, the wall of the sleeve is provided with an opening, the thermocouple body is positioned in the cavity, the temperature measuring end extends out of the opening, and the opening has a preset length along the direction of the central axis of the sleeve; and an elastic force applying part disposed in the sleeve to bias the temperature measuring end toward the inner wall of the pipe.
Optionally, the temperature measuring device further comprises a heat conducting protective sleeve sleeved at the end of the temperature measuring end, and the heat conducting protective sleeve and the temperature measuring end are fixed by using insulating heat conducting glue; the elastic force applying part is an insulator, or the elastic force applying part is spaced from the heat-conducting protective sleeve; and the bushing is an electrically insulating bushing. The thermally conductive protective sheath is, for example, a copper protective sheath.
Optionally, the bushing itself is a rigid insulating bushing made of an insulating material. Or, optionally, the casing includes an inner tube and an outer tube, the inner wall of the inner tube defines the cavity, the outer tube is an insulating casing and is sleeved outside the inner tube in a fixed position relative to the inner tube, the opening includes a first opening provided on the inner tube and a second opening provided on the outer tube, the first opening corresponds to the second opening in position, and the temperature measuring end extends from the second opening through the first opening.
Optionally, the temperature measuring end forms an obtuse angle with the thermocouple body.
Optionally, the thermocouple body is adjacent to or in contact with an inner wall surface of the sleeve opposite the opening.
Alternatively, one end of the elastic force applying portion is fixed to the inside of the sleeve, and the other end pushes the temperature measuring end in a direction such that the obtuse angle becomes smaller. Furthermore, the elastic force applying part is an elastic sheet. The upper end of the elastic sheet can be provided with a notch, and the notch receives the temperature measuring end. Optionally, the elastic force applying part includes: an elastic body, one end of which is fixed to the bottom of the sleeve; and one end of the support body is fixed at the other end of the elastic body, and the other end of the support body supports the temperature measuring end. The other end of the support body can be provided with an inclined groove part, the inclination angle of the groove part corresponds to that of the temperature measuring end, and the cross section of the groove part is arc-shaped and receives the temperature measuring end.
Optionally, the thermocouple body is spaced apart from an inner wall surface of the sleeve opposite the opening; the elastic force applying part is an elastic body arranged between the inner wall surface and the thermocouple main body at a position close to the connection part of the thermocouple main body and the temperature measuring end.
Optionally, the temperature measuring device further comprises a support portion disposed on an outer wall of the temperature measuring device for maintaining a relative position of a central axis of the sleeve with respect to a central axis of the pipeline, the central axis of the sleeve coinciding with the central axis of the pipeline.
Optionally, the temperature measuring device further comprises a rotary driving part for driving the part of the temperature measuring device in the pipeline to rotate around the central axis of the sleeve in the pipeline.
Optionally, the temperature measuring device further comprises an axial movement driving part for driving the part of the temperature measuring device in the pipeline to move along the central axis of the sleeve in the pipeline.
According to another aspect of an embodiment of the present invention, there is provided a method of measuring the temperature of an inner wall of a pipeline, comprising the steps of: providing the temperature measuring device; and placing the temperature measuring section of the temperature measuring device into the cavity of the pipeline, so that the temperature measuring end of the temperature measuring device is pressed against the inner wall of the pipeline on the basis of the elasticity applying part.
Optionally, the method further comprises the steps of: the inner pipe is rotated to measure the temperature of the inner wall of the pipe at different circumferential locations.
Optionally, the method further comprises the steps of: the inner tube is moved parallel to the central axis of the pipe to measure the temperature at another location of the inner wall of the pipe.
Other objects and advantages of the present invention will become apparent from the following description of the invention which refers to the accompanying drawings, and may assist in a comprehensive understanding of the invention.
Drawings
FIG. 1 is a schematic cross-sectional view of a temperature measuring device for measuring the temperature of the inner wall of a pipe according to one embodiment of the present invention;
FIG. 2 is a partial front view of the thermometric device of FIG. 1 from the left side;
FIG. 3 is a schematic cross-sectional view of a temperature measuring device for measuring the temperature of the inner wall of a pipe according to another embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a temperature measuring device for measuring the temperature of the inner wall of a pipe according to yet another embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a temperature measuring device for measuring the temperature of the inner wall of a pipe according to still another embodiment of the present invention;
FIG. 6 is a schematic view of a temperature measuring device for measuring the temperature of the inner wall of a pipe according to one embodiment of the present invention.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention and should not be construed as limiting the invention.
A temperature measuring apparatus for measuring the temperature of the inner wall of a pipe according to an exemplary embodiment of the present invention will be described with reference to fig. 1 to 6.
As shown in fig. 1 to 6, a temperature measuring apparatus for measuring a temperature of an inner wall of a pipe 100 includes: a thermocouple 10 having a straight thermocouple body 12 and a temperature measuring end 14 inclined with respect to the thermocouple body; a first sleeve 20, the first sleeve 20 being provided with a first opening 22, the thermocouple body 12 being located inside the first sleeve 20 and the temperature measuring end 14 protruding from the first opening 22, the first opening 22 having a predetermined length in a direction of a central axis of the first sleeve 20; and a spring force applying part 30 disposed in the first sleeve 20 to bias the temperature measuring end 14 toward an inner wall of the pipe 100.
The first opening 22 may be disposed proximate a bottom of the first sleeve 20.
The "predetermined length" herein means a length sufficient to provide a moving space for the temperature measuring tip 14 to move along the central axis of the first sleeve by the elastic force applying part 30.
The thermocouple 10 herein may be sheathed. Any other suitable thermocouple may be used as long as the angle of the temperature measuring end 14 of the thermocouple with respect to the thermocouple body 12 is substantially constant, i.e., the temperature measuring end 14 is ensured to be in thermal contact with the inner wall of the pipe by the elastic force applying portion.
The first sleeve 20 may be a stainless steel sleeve. The first sleeve 20 serves to protect the thermocouple 10 and may also provide rigid support.
Since the elastic force applying portion 30 biases the temperature measuring tip 14 toward the inner wall of the pipe, even if the temperature measuring device reciprocates up and down or rotates in the pipe, good thermal contact between the temperature measuring tip 14 and the inner wall of the pipe can be ensured.
Therefore, by using the technical scheme of the invention, the temperature measuring device can be placed in a narrow inner cavity of the pipeline and can move up and down or rotate in the narrow inner cavity, so that the wall surface temperature of any position of the inner wall of the pipeline can be measured.
It should be noted that the length of the temperature measuring end 14 should be selected as follows: not only can the temperature measuring device be conveniently placed in the pipeline, but also good thermal contact exists between the temperature measuring end 14 and the inner wall of the pipeline based on the action of the elastic force applying part.
In the drawings, the angle formed between the temperature measuring end 14 and the thermocouple body 12 is an obtuse angle. However, the angle formed by the two may be acute or right. In the case of an acute angle, the elastic force applying portion may be provided above the temperature measuring tip 14 to press the temperature measuring tip 14 from above the temperature measuring tip 14, for example in fig. 1, or still provided below the temperature measuring tip 14 but needs to pull the temperature measuring tip 14 downward.
In an alternative example, as shown in fig. 1, where the angle formed between the temperature measuring end 14 and the thermocouple body 12 is an obtuse angle, the thermocouple body 12 is adjacent to or in contact with an inner wall surface 24 of the first sleeve 20 opposite the first opening 22. This facilitates the temperature sensing tip 14 to move a greater distance.
The elastic force applying part 30 is described below.
In the case where the angle formed between the temperature measuring tip 14 and the thermocouple main body 12 is an obtuse angle, as shown in fig. 1, one end of the elastic force applying portion 30 is fixed inside the first sleeve 20, and the other end pushes the temperature measuring tip 14 in a direction such that the obtuse angle becomes smaller.
As shown in fig. 1, the elastic force applying portion 30 may be a spring. More specifically, the upper end of the spring plate is provided with a notch (not shown) that receives the temperature measuring tip 14, thus facilitating the positioning of the temperature measuring tip 14. As can be seen from fig. 1 and 2, the temperature measuring end 14 is clamped at the upper end of the spring plate. As can be appreciated by those skilled in the art, the notch may not be provided as long as the temperature measuring end 14 does not move in a direction perpendicular to the plane of the drawing of fig. 1 and is not supported by the upper end of the spring plate. The shape of the notch can be arc-shaped or rectangular.
In fig. 1, the arrangement position of the lower end of the dome and the shape of the dome itself are merely exemplary. For example, in fig. 1, the lower end of the elastic piece may be fixed to the left side of the bottom of the first sleeve 20, and for example, the elastic piece may have an arc shape.
As shown in fig. 3, the elastic force applying part 30 includes: an elastic body 32, such as a coil spring, one end of the elastic body 30 is fixed to the bottom of the first sleeve 20; and one end (lower end) of the support body 34 is fixed at the other end (upper end) of the elastic body 32, and the other end of the support body 34 supports the temperature measuring end 14. In this way, in fig. 3, the temperature measuring end 14 can be estimated upward by the elastic force of the elastic body 32, and the temperature measuring end 14 can be kept in contact with the inner wall of the pipe.
Optionally, for better holding the temperature measuring tip 14, the other end of the support body 34 has an inclined groove portion (indicated by a dotted line in fig. 3) corresponding to the inclination angle of the temperature measuring tip, the cross section of the groove portion being arc-shaped and receiving the temperature measuring tip 14.
The above-described elastic force applying portions 30 each apply a force to the temperature measuring tip 14, but a force may be applied to the thermocouple main body 12.
As shown in fig. 4, the thermocouple body 12 is spaced from an inner wall surface 24 of the first sleeve 20 opposite the first opening 22; the elastic force applying portion 30 is an elastic body provided between the inner wall surface 24 and the thermocouple body 12 in the vicinity of the junction of the thermocouple body 12 and the temperature measuring tip 14. The resilient force may be a coil spring, an elastic rubber or any other suitable member providing compression resilience.
As shown in fig. 1, in order to protect the temperature measuring end 14 of the thermocouple from damage due to frequent pressing friction, a copper protective sleeve 50 may be sleeved on the end of the temperature measuring end. The copper protective sheath 50 may be made of, for example, copper. The red copper material has high thermal conductivity, and errors in measurement of the wall surface temperature of the pipeline caused by the thermal resistance of the copper protective sleeve 50 can be ignored. Other protective sleeves may be used so long as the protective sleeve has good thermal conductivity, such as protective sleeves made of other thermally conductive metals.
As shown in fig. 1, 3 and 4, the second sleeve 40 is sleeved outside the first sleeve 20, the second sleeve 40 is provided with a second opening 42 at a position corresponding to the first opening 22, and the temperature measuring end 14 extends out of the second opening 42 through the first opening 22. The second sleeve 40 is an insulating sleeve, such as a ceramic sleeve, and is fixed in position relative to the first sleeve 20. In an alternative example, a high temperature ceramic glue may be used to bond the first sleeve 20 to the ceramic sleeve. Thus, there is no relative movement between the first sleeve 20 and the second sleeve 40 as the first sleeve 20 moves up and down or rotates. The first sleeve may be referred to as an inner tube and the second sleeve may be referred to as an outer tube.
Since the second sleeve 40 is an insulating sleeve, in case the conduit is an electrical heating rod, the second sleeve 40 electrically insulates the first sleeve 20 with respect to the electrical heating rod. In the case where the later-mentioned temperature measuring terminal 14 is insulated from the electric heating rod, it is also possible to achieve electrical insulation of the thermocouple body in the first bushing 20 from the electric heating rod.
It is to be noted in particular that the second sleeve 40 may also be dispensed with when measuring the temperature of the inner wall of the conduit which is not electrically heated, since there is no need for electrical insulation.
However, even if it is necessary to measure the temperature of the inner wall of the electric heating rod, the second sleeve 40 may not be provided in the case where the first sleeve 20 itself is a rigid insulating sleeve. An example of this is shown in fig. 5, where the second sleeve is removed and the first sleeve 20 is a rigid insulating sleeve, e.g. a ceramic sleeve.
In order to electrically insulate the temperature measuring end 14 from the inner wall of the electrical heating rod, for example, in the case of providing the copper protective sleeve 50, the copper protective sleeve 50 and the temperature measuring end 14 may be fixed by using an insulating heat-conducting adhesive. The insulating heat-conducting glue ensures the electric insulation between the thermocouple 1 and the tested electric heating rod, and eliminates the influence of the voltage on the electric heating rod on the temperature measurement.
Based on utilizing insulating heat-conducting glue to fix between copper protective sheath 50 and temperature measurement end 14 and based on second sleeve pipe or first sleeve pipe use insulating material to make, can prevent the influence of voltage that takes on the electrical heating rod to the temperature measurement, reduce measuring error.
In addition, the central axis of the part of the temperature measuring device in the pipeline is always coincident with the central axis of the pipeline, which is helpful for ensuring that the temperature measuring end 14 is in effective thermal contact with the inner wall of the pipeline at each circumferential position when the temperature measuring device in the pipeline rotates, and even the contact pressure of the temperature measuring end 14 with the inner wall of the pipeline at different circumferential positions is approximately the same each time. For this, the temperature measuring device may further include a support portion 60, as shown in fig. 6, the support portion 60 being provided at an outer wall of the temperature measuring device for maintaining the central axis of the sleeve 20 to coincide with the central axis of the pipe 100.
The temperature measuring device may include a rotary drive part 70 for driving a portion of the temperature measuring device in the pipe to rotate around the central axis of the first sleeve in the pipe, and in fig. 6, for example, the rotary drive part may be a gear which may be driven by an external power source; and/or an axial movement drive 80 for driving a portion of the thermometric device within the conduit to move along the central axis of the first sleeve within the conduit, in fig. 6, the axial movement drive 80 may be in the form of a shaft driven by a stepper motor.
The invention also relates to a method of measuring the temperature of the inner wall of a pipeline, comprising the steps of: providing the temperature measuring device; and putting the temperature measuring section of the temperature measuring device into the pipeline 100, so that the temperature measuring end 14 of the temperature measuring device is pressed against the inner wall of the pipeline based on the elastic force of the elastic force applying part 30.
In the above method, the first sleeve may be rotated to measure the temperature of the inner wall of the pipe at different circumferential positions.
In the above method, the first sleeve may be moved parallel to the central axis of the pipe to measure the temperature at another location of the inner wall of the pipe.
In the present invention, the inner diameter of the pipe may be between 5 and 10cm and the gap between the outer wall surface of the temperature measuring device and the inner wall surface of the pipe may be between 1 and 3 cm.
The invention relates to a measuring device for a pressurized water reactor thermal hydraulic experiment. The temperature measuring device and the method can be widely applied to the test of simulating the heat transfer characteristic of the fuel assembly by the electric heating rod, the temperature of the inner wall surface can be measured by controlling the temperature measuring device to move up and down and rotate to any position by the driving mechanism, the measuring result is accurate, and the measuring operation is safe and reliable.
Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
Claims (18)
1. A temperature measuring device for measuring a temperature of an inner wall of a pipeline, comprising:
a thermocouple having a straight thermocouple body and a temperature measuring end inclined with respect to the thermocouple body;
the thermocouple comprises a sleeve, a thermocouple body and a temperature measuring end, wherein the inner wall surface of the sleeve limits a cavity, the wall of the sleeve is provided with an opening, the thermocouple body is positioned in the cavity, the temperature measuring end extends out of the opening, and the opening has a preset length along the direction of the central axis of the sleeve; and
an elastic force applying part arranged in the sleeve to bias the temperature measuring end to the inner wall of the pipeline;
the temperature measuring device also comprises a heat conduction protective sleeve sleeved at the end part of the temperature measuring end, and the heat conduction protective sleeve and the temperature measuring end are fixed by using insulating heat conduction glue;
the elastic force applying part is an insulator, or the elastic force applying part is spaced from the heat-conducting protective sleeve; and is
The sleeve is an electrically insulating sleeve.
2. The thermometric apparatus of claim 1, wherein:
the heat conduction protective sheath is copper protective sheath.
3. The thermometric apparatus of claim 1, wherein:
the bushing itself is a rigid insulating bushing made of insulating material.
4. The thermometric apparatus of claim 1, wherein:
the casing pipe comprises an inner pipe and an outer pipe, the cavity is limited by the inner wall of the inner pipe, the outer pipe is an insulating casing pipe and fixedly sleeved outside the inner pipe at a position opposite to the inner pipe, the opening comprises a first opening and a second opening, the first opening is arranged on the inner pipe, the second opening is arranged on the outer pipe, the first opening corresponds to the second opening in position, and the temperature measuring end extends out of the second opening through the first opening.
5. The thermometric apparatus of claim 1, wherein:
the temperature measuring end and the thermocouple main body form an obtuse angle.
6. The thermometric apparatus of claim 5, wherein:
the thermocouple body is adjacent to or in contact with an inner wall surface of the sleeve opposite the opening.
7. The thermometric apparatus of claim 5, wherein:
one end of the elastic force applying portion is fixed to the inside of the sleeve, and the other end pushes the temperature measuring end in a direction such that the obtuse angle becomes smaller.
8. The thermometric apparatus of claim 7, wherein:
the elastic force applying part is an elastic sheet.
9. The thermometric apparatus of claim 8, wherein:
the upper end of the elastic sheet is provided with a notch, and the notch receives the temperature measuring end.
10. The thermometric apparatus of claim 7, wherein:
the elastic force applying part includes:
an elastic body, one end of which is fixed to the bottom of the sleeve; and one end of the support body is fixed at the other end of the elastic body, and the other end of the support body supports the temperature measuring end.
11. The thermometric apparatus of claim 10, wherein:
the other end of the support body is provided with an inclined groove part, the inclination angle of the groove part corresponds to that of the temperature measuring end, and the cross section of the groove part is arc-shaped and receives the temperature measuring end.
12. The thermometric apparatus of any of claims 1-6, wherein:
the thermocouple body is spaced apart from an inner wall surface of the bushing opposite the opening;
the elastic force applying part is an elastic body arranged between the inner wall surface and the thermocouple main body at a position close to the connection part of the thermocouple main body and the temperature measuring end.
13. The thermometric apparatus of any one of claims 1-11, wherein:
the temperature measuring device further comprises a supporting part, and the supporting part is arranged on the outer wall of the temperature measuring device and used for maintaining the relative position of the central axis of the sleeve relative to the central axis of the pipeline; and is
The central axis of the sleeve coincides with the central axis of the pipeline.
14. The thermometric apparatus of any of claims 1-11, further comprising:
and the rotary driving part is used for driving the part of the temperature measuring device in the pipeline to rotate around the central axis of the sleeve in the pipeline.
15. The thermometric apparatus of any of claims 1-11, further comprising:
and the axial movement driving part is used for driving the part of the temperature measuring device in the pipeline to move along the central axis of the sleeve in the pipeline.
16. A method of measuring the temperature of an inner wall of a pipeline, comprising the steps of:
providing a thermometric apparatus according to any one of claims 1-15;
and placing the temperature measuring section of the temperature measuring device into the cavity of the pipeline, so that the temperature measuring end of the temperature measuring device is pressed against the inner wall of the pipeline on the basis of the elasticity applying part.
17. The method of claim 16, further comprising the step of:
the sleeve is rotated to measure the temperature of the inner wall of the pipe at different circumferential locations.
18. The method according to claim 16 or 17, further comprising the step of:
the sleeve is moved parallel to the central axis of the pipe to measure the temperature at another location of the inner wall of the pipe.
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| CN201410800110.6A CN105784160B (en) | 2014-12-18 | 2014-12-18 | Temperature measuring device and method for measuring temperature of inner wall of pipeline |
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| CN201410800110.6A CN105784160B (en) | 2014-12-18 | 2014-12-18 | Temperature measuring device and method for measuring temperature of inner wall of pipeline |
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| CN107796525A (en) * | 2017-09-30 | 2018-03-13 | 江苏省福达特种钢有限公司 | High-speed steel salt bath furnace for thermal treatment pyrometer couple |
| CN108917961B (en) * | 2018-07-27 | 2019-11-26 | 中国核动力研究设计院 | A kind of cluster fuel assembly multiple spot wall temperature measurement device under moving condition |
| CN111780887B (en) * | 2020-07-31 | 2022-03-08 | 中国航空发动机研究院 | Multi-point temperature measuring device and method for inner wall of hollow round pipe with adjustable contact pressure |
| CN111964798B (en) * | 2020-08-12 | 2022-04-26 | 常州大学 | Wall surface temperature detection device for high-temperature metal melting furnace |
| CN112179512A (en) * | 2020-09-07 | 2021-01-05 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Device and method for measuring temperature of outer wall of heating rod bundle in reactor core channel |
| CN112815374A (en) * | 2021-03-03 | 2021-05-18 | 王青梅 | Monitoring equipment for heat supply |
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| CN100422705C (en) * | 2006-01-18 | 2008-10-01 | 宝山钢铁股份有限公司 | Method and device for detecting temperature on inner wall of steel tube not contacted |
| CN201724753U (en) * | 2010-05-26 | 2011-01-26 | 中国航空工业集团公司沈阳发动机设计研究所 | Sensor capable of measuring temperature of inner wall surface of tube body |
| CN202734980U (en) * | 2012-06-04 | 2013-02-13 | 重庆川仪十七厂有限公司 | Thermocouple supporting device |
| CN203365011U (en) * | 2013-07-30 | 2013-12-25 | 淮安柯林斯尼电气有限公司 | Thermocouple temperature-measuring device equipped with support for boiler |
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2014
- 2014-12-18 CN CN201410800110.6A patent/CN105784160B/en active Active
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