CN106679831B - Fluids within pipes medium temperature measuring device - Google Patents
Fluids within pipes medium temperature measuring device Download PDFInfo
- Publication number
- CN106679831B CN106679831B CN201611147246.7A CN201611147246A CN106679831B CN 106679831 B CN106679831 B CN 106679831B CN 201611147246 A CN201611147246 A CN 201611147246A CN 106679831 B CN106679831 B CN 106679831B
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- Prior art keywords
- protective case
- pipeline
- supporting beam
- fluids
- measuring device
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
- G01K1/10—Protective devices, e.g. casings for preventing chemical attack
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses a kind of fluids within pipes medium temperature measuring devices; at least one protective case including fixed structure and for installing temperature-measuring element; pipeline is equipped with the first mounting portion and the second mounting portion being oppositely arranged; first mounting portion offers and the one-to-one first through hole of protective case; protective case passes through first through hole and extends close to the second mounting portion, and fixed structure is used to protective case being fixed on pipeline.Protective case of the present invention is penetrated from the side of pipeline, and reaches the opposite other side of pipeline, so that protective case runs through in the inner cavity of pipeline, and then guarantees that temperature-measuring element can carry out temperature detection through entire inner cavity of pipe, to improve temperature measurement accuracy.The fluids within pipes temperature measurement that present invention can be suitably applied to arbitrary section size is particularly suitable for fluid temperature (F.T.) in big cross section pipe and measures, also can guarantee measurement accuracy in the biggish situation of flow disturbance.
Description
Technical field
The present invention relates to power plant equipment technical fields, measure and fill more particularly, to a kind of fluids within pipes medium temperature
It sets.
Background technique
The circulation of power plant unit continuously provides cooling water, is discharged to condenser for taking away steam turbine
Waste heat.In power plant design and operation, recirculated water import and export water temperature is an important data, the vacuum with unit operation
It is closely bound up to spend (back pressure).General operating experience shows: the every decline lkPa of condenser vacuum, heat consumption rate increase 88kJ/ (kWh),
Coa consumption rate increases 3g/ (kWh), and there are energy-saving potentials 1%~2% for prediction by analysis.Therefore, unit economy, reply are improved
Circulating water temperature is monitored and adjusts, it is ensured that condenser vacuum degree with higher.Existing temperature measurement method is more difficult accurate
Ground obtains circulating water temperature, and measurement accuracy is low, especially for big cross section pipe (300MW~1000MW unit, circulating water pipeline
For diameter for 2000~3000mm etc.), flow disturbance is big, its measurement result of traditional measurement method does not have representativeness,
Measurement result fluctuation is larger, is unfavorable for realizing the monitoring to system operational parameters, to be unfavorable for improving unit economy.
Summary of the invention
Based on this, the invention reside in overcoming the deficiencies of existing technologies, a kind of fluids within pipes medium temperature measurement dress is provided
It sets, is applicable to the fluids within pipes temperature measurement of arbitrary section size, improves the measurement accuracy of fluid temperature (F.T.), be conducive to
The accurate monitoring to system operational parameters is realized, to be conducive to improve the economy of unit.
Its technical solution is as follows:
A kind of fluids within pipes medium temperature measuring device, including fixed structure and for installing temperature-measuring element extremely
A few protective case, pipeline are equipped with the first mounting portion and the second mounting portion being oppositely arranged, first mounting portion offer with
The one-to-one first through hole of protective case, the protective case pass through the first through hole and extend close to second installation
Portion, the fixed structure are used to the protective case being fixed on pipeline.
In one of the embodiments, the fixed structure include locking assembly and with the protective case one-to-one
One supporting beam, first supporting beam and the protective case are arranged in parallel along the axial direction of pipeline, the both ends of first supporting beam
It is welded respectively with first mounting portion and second mounting portion, the protective case passes through the locking assembly and described first
Supporting beam connection.
The locking assembly includes U bolt, closing piece and two locking nuts, the U-shaped in one of the embodiments,
Bolt is equipped with to be equipped with one-to-one with the end of thread with one-to-one two ends of thread of the locking nut, the closing piece
Connecting hole, first supporting beam and the protective case are respectively positioned on the U-shaped and connect in bolt, and the end of thread passes through the connection
Locking nut immovable fitting described in Kong Bingyu, the closing piece offset with the protective case.
The locking assembly further includes being located at first supporting beam and the U bolt in one of the embodiments,
Between protection gasket.
The fixed structure further includes second connected vertically with first supporting beam in one of the embodiments,
Beam is supportted, the both ends of second supporting beam are welded with the inner wall of pipeline, and the protective case and second supporting beam distinguish position
In the two sides of first supporting beam.
The protective case is multiple, circumferential direction parallel cloth of multiple protective cases along pipeline in one of the embodiments,
It sets.
Each protective case favours the axis setting of pipeline in one of the embodiments,.
The angle between the protective case and the axis of pipeline is 85 degree in one of the embodiments,.
The outer wall of pipeline is additionally provided with the flanged pipe at the first through hole in one of the embodiments, described solid
Determining structure further includes the blind flange being cooperatively connected with the flanged pipe, and the blind flange is offered to be connected with the inner cavity of the flanged pipe
One end of the second logical through-hole, the protective case is located in second through-hole, and the other end sequentially passes through the flanged pipe, described
First through hole is simultaneously located in pipeline, welded seal between the protective case and the blind flange.
The periphery of the protective case is equipped with line with rubber in one of the embodiments,.
The advantages of below to preceding solution or principle are illustrated:
Fluids within pipes medium temperature measuring device of the present invention, protective case (built-in thermal resistance or thermocouple
Equal temperature-measuring elements) it is penetrated from the side of pipeline, and reach the opposite other side of pipeline, so that protective case is in pipeline
Chamber runs through, and then guarantees that temperature-measuring element can carry out temperature detection through entire inner cavity of pipe, to improve temperature measurement
Precision.The central axis that at least one of protective case passes through pipeline can be arranged according to actual needs by the present invention.In summary,
The fluids within pipes temperature measurement that present invention can be suitably applied to arbitrary section size, is particularly suitable for fluid temperature (F.T.) in big cross section pipe
Measurement also can guarantee measurement accuracy in the biggish situation of flow disturbance.The present invention is advantageously implemented to system operational parameters
Accurate monitoring, to be conducive to improve the economy of unit.
Fixed structure of the present invention includes locking assembly and the first supporting beam, and the first supporting beam is welded in inner wall of the pipe use
Carry out support protective case, it is ensured that the rigidity and intensity of entire measuring device.
The locking assembly includes U bolt, closing piece and locking nut, is bound protective case by the cooperation between three
It is anchored in the first supporting beam, realizes effective fixation of protective case.Locking assembly structure of the present invention is simple, and design is reasonable
Effectively.
The locking assembly further includes the protection gasket between first supporting beam and the U bolt, to
The protection for reinforcing the first supporting beam prevents the first supporting beam to be worn.
The fixed structure further includes the second supporting beam, and the second supporting beam is used for the first supporting beam of support, further strengthens
The rigidity and intensity of entire measuring device.
Protective case of the present invention is multiple, multiple protective case parallel arrangements, to realize that pipeline total cross-section temperature measures,
Improve temperature measurement accuracy.Simultaneously protective case of the present invention along pipeline it is same circumferentially, multiple protective cases are respectively positioned on pipe
In the same scarf in road, correspondingly, more first supporting beams also are located in same scarf, to pass through one second support
Beam can support more first supporting beams simultaneously, achieve the purpose that save cost of manufacture, but also structure is simply easy in pipeline
It realizes.In addition, being located at same protective case circumferentially may insure that the measuring point of different temperatures measuring cell is co-located,
So that the measurement result between different temperatures measuring cell can carry out effective ratio pair.
It is obliquely installed between the protective case and the axis of tube body, to reduce fluid media (medium) to the isostructural punching of protective case
Brush, extends the service life of measuring device.
Welded seal between protective case and flange end cap realizes the tightness of system, guarantees that fluid media (medium) does not leak outside.
Can also line with rubber be arranged in the periphery of protective case according to actual needs in the present invention, to enhance the Anticorrosive Character of system,
So that whole system is equally applicable to the measurement of other corrosive fluid medium temperature such as seawater.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of fluids within pipes medium temperature measuring device described in the embodiment of the present invention；
Fig. 2 is the E-E of Fig. 1 to diagrammatic cross-section；
Fig. 3 is the B-B direction diagrammatic cross-section of Fig. 1；
Fig. 4 is enlarged drawing at the A of Fig. 1.
Description of symbols:
100, pipeline, the 110, first mounting portion, the 120, second mounting portion, 130, flanged pipe, 140, first through hole, 200, guarantor
Sheath, 300, fixed structure, the 310, first supporting beam, the 320, second supporting beam, 330, locking assembly, 331, U bolt,
3311, the end of thread, 332, closing piece, 3321, connecting hole, 3322, holding tank, 333, locking nut, 334, protection gasket, 340, method
Orchid lid, the 341, second through-hole, 400, line with rubber.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, below in conjunction with attached drawing and specific embodiment party
Formula, the present invention is further described in detail.It should be understood that the specific embodiments described herein are only to solve
The present invention is released, and the scope of protection of the present invention is not limited.
As depicted in figs. 1 and 2, fluids within pipes medium temperature measuring device of the present invention, including fixed structure 300
With for installing temperature-measuring element at least one protective case 200 (temperature-measuring elements such as built-in thermal resistance or thermocouple,
Temperature-measuring element is axially through being set in protective case 200).Pipeline 100 is equipped with 110 He of the first mounting portion being oppositely arranged
Second mounting portion 120.First mounting portion 110 offers and the one-to-one first through hole 140 of the protective case 200.Institute
The outside that 200 one end of protective case is located at the pipeline 100 is stated, the other end passes through the first through hole 140 and extends close to institute
State the setting of the second mounting portion 120.The fixed structure 300 is used to the protective case 200 being fixed on pipeline 100.
Protective case 200 of the present invention is penetrated from the side of pipeline 100, and reaches the opposite other side of pipeline 100, is made
It obtains 200 pipe of protective case to run through in the inner cavity of pipeline 100, and then guarantees that temperature-measuring element can run through entire 100 inner cavity of pipeline
Temperature detection is carried out, to improve temperature measurement accuracy.It present invention can be suitably applied to fluid temperature in the pipeline 100 of arbitrary section size
Degree measurement is particularly suitable for fluid temperature (F.T.) in big cross section pipe 100 and measures, also can guarantee and survey in the biggish situation of flow disturbance
Accuracy of measurement.The present invention is advantageously implemented the accurate monitoring to system operational parameters, to be conducive to improve the economy of unit.
In the present embodiment, the fixed structure 300 includes and one-to-one first supporting beam of the protective case 200
310.The axial direction that first supporting beam 310 is located in pipeline 100 and with the protective case 200 along pipeline 100 is arranged in parallel.It protects
Sheath 200 is preferentially installed on upstream face (arrow show medium flow direction in figure), i.e., the described protective case 200 and first support
Beam 310 is sequentially arranged along the flow direction of medium, to improve the accuracy of measurement.Distinguish at the both ends of first supporting beam 310
It is welded with first mounting portion 110 and second mounting portion 120.By the way that first supporting beam 310 is welded in pipeline
100 inner walls carry out support protective case 200, it is ensured that the rigidity and intensity of entire measuring device.
Incorporated by reference to Fig. 3, the protective case 200 is fixed in first supporting beam 310 by locking assembly 330.Specifically
Ground, the locking assembly 330 include U bolt 331, closing piece 332 and two locking nuts 333.The U bolt 331 is equipped with
With 333 one-to-one two ends of thread 3311 of the locking nut.The closing piece 332 is equipped with the end of thread 3311 one by one
Corresponding connecting hole 3321.First supporting beam 310 and the protective case 200 are respectively positioned on the U-shaped and connect in bolt 331, institute
State the end of thread 3311 across the connecting hole 3321 and with 333 immovable fitting of locking nut.The closing piece 332 is also recessed with
The holding tank 3322 matched with the peripheral shape of the protective case 200, when fastening the closing piece 332 with the protective case 200
It offsets.The present invention is bound protective case 200 tightly by the cooperation between 333 three of U bolt 331, closing piece 332 and locking nut
It is fixed in the first supporting beam 310, realizes effective fixation of protective case 200.330 structure of locking assembly is simple, and design is closed
Reason is effective.Protective case 200 can also be fixed on the first support using the locking mechanism of other forms according to actual needs by the present invention
On beam 310, such as steel ring can be directlyed adopt by 200 binding and fixing of protective case in the first supporting beam 310.
Please continue to refer to Fig. 3, the locking assembly 330 further includes being located at first supporting beam 310 and the U bolt
Protection gasket 334 between 331 prevents the first supporting beam 310 to be worn to reinforce the protection of the first supporting beam 310.At this
In embodiment, each protective case 200 can be fixed by more than two locking assemblies 330, and multiple locking assemblies 330 are along protection
The axially spaced-apart arrangement of set 200, so that stress equalization when protective case 200 is installed.
Preferably, the fixed structure 300 further includes and first supporting beam 310, second supporting beam connected vertically
320, the both ends of second supporting beam 320 are welded with the inner wall of pipeline 100.Second supporting beam 320 is for support the
One supporting beam 310 is located at the two sides of first supporting beam 310 with protective case 200.Second supporting beam 320 is equipped with two
Root, two second supporting beams 320 are evenly arranged along the length direction of the first supporting beam 310, so that 310 stress of the first supporting beam
It is balanced.
Incorporated by reference to Fig. 4, the fixed structure 300 further includes blind flange 340.The outer wall of pipeline 100 is additionally provided with positioned at described
The flanged pipe 130 (being connected to the first through hole 140) at first through hole 140, flanged pipe 130 and 100 integrally connected of pipeline.Method
Blue disk and blind flange 340 pass through fastener (bolts and nuts combine or screw etc.) connection.The blind flange 340 offers and institute
State the second through-hole 341 of the inner cavity connection of flanged pipe 130.One end of the protective case 200 is located in second through-hole 341,
The other end sequentially passes through the flanged pipe 130, the first through hole 140 and is located in pipeline 100.The protective case 200 and institute
It states and is welded between blind flange 340, to by the gap seals between protective case 200 and blind flange 340, to realize whole system
The tightness of (including pipeline 100 and temperature measuring device of the present invention) guarantees that fluid media (medium) does not leak outside.When pipeline fluid is situated between
When matter is seawater, anticorrosion material cupronickel B 30 material or TA1 titanium is can be used in the blind flange 340 and the protective case 200
It is made.Blind flange 340 and protective case 200 should be made of same material, in the case where guaranteeing system sealing, avoid xenogenesis
Steel welding.When pipeline fluid medium is fresh water, the blind flange 340 and the protective case 200 can be used carbon steel and be made.
In the present embodiment, the protective case 200 is settable multiple, such as 3 or 5, wherein to one or one with
On protective case 200 can be used for that temperature-measuring element on the spot is installed；In addition one or more protective case 200 is for pacifying
Teletransmission temperature-measuring element is filled, teletransmission temperature-measuring element can be by measurement result teletransmission to central control system (DCS), so as to electricity
Factory's centralized control.
Preferably, same circumferential parallel arrangement of multiple protective cases 200 along pipeline 100, i.e., multiple first through hole 140
Positioned at same circumferential direction, while the end that connect with the first mounting portion 110 of the first supporting beam 310 also is located at same circumferential direction, and first
The end that support beam 310 is connect with the second mounting portion 120 also is located at same circumferential direction.By the protective case 200 of multiple parallel arrangements come
It realizes the measurement of 100 total cross-section temperature of pipeline, improves temperature measurement accuracy.Meanwhile more first supporting beams 310 are located at same beveling
In face, so that only more first supporting beams 310 can be supported simultaneously by second supporting beam 320, reaches saving and be fabricated to
This purpose, but also structure is simply easily achieved in pipeline 100.In addition, being located at same multiple protective cases 200 circumferentially
It may insure that the measuring point of different temperatures measuring cell is co-located, so that the measurement between different temperatures measuring cell
As a result effective ratio pair can be carried out.In a preferred embodiment, wherein a protective case 200 may pass through the center of pipeline 100
Axis.
Further, each protective case 200 favours the axis setting of pipeline 100, to reduce fluid media (medium)
It is isostructural to protective case 200 to wash away, extend the service life of measuring device.Between protective case 200 and the axis of pipeline 100
Angle is preferably 85 degree, can also be set as 80 degree, 75 degree etc. according to actual needs.
In a preferred embodiment, first supporting beam 310, second supporting beam 320, the inside of pipeline 100,
Glue technique production line with rubber 400 can be used in the other parts structures such as 130 inside of flanged pipe, the anti-corrosion to enhance system is special
Property, so that whole system is equally applicable to the measurement of other corrosive fluid medium temperature such as seawater.When fluid media (medium) is fresh water,
Setting line with rubber 400 can then not needed.
It should be noted that the descriptions such as " first " of the present invention, " second ", " third " are used only for distinguishing in specification
Various components, element, step etc., without being intended to indicate that various components, element, logical relation or sequence between step
Relationship etc..
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.
Claims (8)
1. a kind of fluids within pipes medium temperature measuring device, which is characterized in that surveyed including fixed structure and for installing temperature
At least one protective case of element is measured, pipeline is equipped with the first mounting portion and the second mounting portion being oppositely arranged, first installation
Portion is offered to be passed through the first through hole and extends close to institute with the one-to-one first through hole of the protective case, the protective case
The second mounting portion is stated, the fixed structure is used to the protective case being fixed on pipeline；
The fixed structure include locking assembly and with one-to-one first supporting beam of the protective case, first supporting beam
With the protective case along pipeline axial direction be arranged in parallel, the both ends of first supporting beam respectively with first mounting portion and institute
The welding of the second mounting portion is stated, the protective case is connect by the locking assembly with first supporting beam；The locking assembly
Including U bolt, closing piece and two locking nuts, the U bolt is equipped with and one-to-one two spiral shells of the locking nut
Line end, the closing piece are equipped with and the one-to-one connecting hole of the end of thread, first supporting beam and the equal position of the protective case
In in the U bolt, the end of thread pass through the connecting hole and with the locking nut immovable fitting, the closing piece and institute
Protective case is stated to offset.
2. fluids within pipes medium temperature measuring device according to claim 1, which is characterized in that the locking assembly is also
Including the protection gasket between first supporting beam and the U bolt.
3. fluids within pipes medium temperature measuring device according to claim 1, which is characterized in that the fixed structure is also
Including with first supporting beam the second supporting beam connected vertically, the both ends of second supporting beam with the inner wall of pipeline weld
It connects, the protective case and second supporting beam are located at the two sides of first supporting beam.
4. fluids within pipes medium temperature measuring device according to claim 3, which is characterized in that the protective case is more
A, multiple protective cases are arranged in parallel along the circumferential direction of pipeline.
5. fluids within pipes medium temperature measuring device according to any one of claim 1 to 4, which is characterized in that every
A protective case favours the axis setting of pipeline.
6. fluids within pipes medium temperature measuring device according to claim 5, which is characterized in that the protective case and pipe
Angle between the axis in road is 85 degree.
7. fluids within pipes medium temperature measuring device according to any one of claim 1 to 4, which is characterized in that pipe
The outer wall in road is additionally provided with the flanged pipe at the first through hole, and the fixed structure further includes cooperating to connect with the flanged pipe
The blind flange connect, the blind flange offer the second through-hole being connected to the inner cavity of the flanged pipe, one end of the protective case
In second through-hole, the other end sequentially passes through the flanged pipe, the first through hole and is located in pipeline, the protection
Welded seal between set and the blind flange.
8. fluids within pipes medium temperature measuring device according to any one of claim 1 to 4, which is characterized in that institute
The periphery for stating protective case is equipped with line with rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611147246.7A CN106679831B (en) | 2016-12-13 | 2016-12-13 | Fluids within pipes medium temperature measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611147246.7A CN106679831B (en) | 2016-12-13 | 2016-12-13 | Fluids within pipes medium temperature measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106679831A CN106679831A (en) | 2017-05-17 |
| CN106679831B true CN106679831B (en) | 2019-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611147246.7A Active CN106679831B (en) | 2016-12-13 | 2016-12-13 | Fluids within pipes medium temperature measuring device |
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| CN (1) | CN106679831B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112229762A (en) * | 2020-11-06 | 2021-01-15 | 南京愚工智能技术有限公司 | Method for measuring density of fluid in pipeline and density measuring and mounting structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3526134A (en) * | 1968-05-21 | 1970-09-01 | Nasa | Thermobulb mount |
| CN104111128A (en) * | 2014-07-02 | 2014-10-22 | 中国石油化工股份有限公司 | Multipoint temperature acquisition device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012012740A1 (en) * | 2012-06-26 | 2014-01-02 | Linde Ag | Temperature measuring device with temperature measuring sleeve for measuring the temperature of a flowing medium |
-
2016
- 2016-12-13 CN CN201611147246.7A patent/CN106679831B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3526134A (en) * | 1968-05-21 | 1970-09-01 | Nasa | Thermobulb mount |
| CN104111128A (en) * | 2014-07-02 | 2014-10-22 | 中国石油化工股份有限公司 | Multipoint temperature acquisition device |
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| Publication number | Publication date |
|---|---|
| CN106679831A (en) | 2017-05-17 |
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