CN105953945A - Sampling pipe used for measuring temperature of fluid medium in pipeline - Google Patents
Sampling pipe used for measuring temperature of fluid medium in pipeline Download PDFInfo
- Publication number
- CN105953945A CN105953945A CN201610526427.4A CN201610526427A CN105953945A CN 105953945 A CN105953945 A CN 105953945A CN 201610526427 A CN201610526427 A CN 201610526427A CN 105953945 A CN105953945 A CN 105953945A
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- CN
- China
- Prior art keywords
- sampling
- hole
- probe tube
- thermometer
- thief
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- G01K13/12—Thermometers specially adapted for specific purposes combined with sampling devices for measuring temperatures of samples of materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1031—Sampling from special places
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses a sampling pipe used for measuring temperature of fluid media in a pipeline. The sampling pipe comprises a sampling pipe body, wherein the sampling pipe body is provided with a sampling part, a pipeline connecting part and a thermometer mounting part along the axial direction in sequence, the thermometer mounting part of the sampling pipe body is provided with a thermometer interface, the end of the sampling part of the sampling pipe body is sealed, a mixing cavity for mixing the fluid media at laminar flow surfaces is formed in the sampling part, the mixing cavity is communicated with the thermometer interface of the thermometer mounting part, a plurality of sampling holes used for respectively acquiring the fluid media at the laminar flow surfaces are formed in one side of the pipe wall of the sampling part, and a discharge hole used for discharge of the mixed fluid media is formed in the other side of the pipe wall of the sampling part. The sampling pipe can truly reflect the accurate temperature inside the pipeline, and is high in temperature measurement precision.
Description
Technical field
The present invention relates to pipeline fluid medium temperature fields of measurement, particularly to a kind of probe tube for measuring pipeline fluid medium temperature.
Background technology
What temperature measured by thermocouple thermometer or platinum resistance thermometer is a point or the temperature of a tiny area, and the temperature in the biggest each laminar flow face of pipeline internal medium fluid has certain difference in pipeline, this species diversity Producing reason has: one is to make the temperature in each laminar flow face there are differences due to pipeline internal medium laminar flow of fluid and turbulent flow phenomenon, temperature radiation that two is medium fluid pipeline exists with external environment condition and in making pipeline each laminar flow surface temperature there is error, three is the conduction error of thermometer existence itself.Under high temperature, environment under high pressure, these errors are bigger, and the temperature accuracy measured under such environment with thermocouple thermometer or platinum resistance thermometer is low, it is impossible to accurate temperature in true reflection pipeline, bring error to the control of equipment.
Summary of the invention
Present invention aims to the deficiencies in the prior art, it is provided that a kind of probe tube for measuring pipeline fluid medium temperature, it can truly reflect accurate temperature in pipeline, and temperature measurement accuracy is high.
The object of the present invention is achieved like this: a kind of probe tube for measuring pipeline fluid medium temperature, including probe tube body, described probe tube body is sequentially provided with sampling portion vertically, pipe connection portion, thermometer installation portion, the thermometer installation portion of described probe tube body is provided with thermometer boss, the end seals in the sampling portion of described probe tube body, the hybrid chamber for mixing is formed for the fluid media (medium) in each laminar flow face in sampling portion, this hybrid chamber connects with the thermometer boss of thermometer installation portion, the tube wall side in described sampling portion is provided with the thief hole of multiple fluid media (medium) for gathering each laminar flow face respectively, the tube wall opposite side in described sampling portion is provided with the tap hole for flowing out for fluid-mixing medium.
The axial line of the axial line of probe tube body, the axial line of tap hole and all thief holes is respectively positioned on same plane, improves accuracy of measurement.
The summation of all thief hole sectional areas, equal to or less than the sectional area of tap hole, typically takes and is slightly less than, and beneficially in hybrid chamber, medium is discharged from tap hole, in real time reflection pipeline internal medium temperature.
The aperture of described thief hole is 8mm.The aperture of tap hole is 16mm.
Ultimate range between the sealing termination, the sampling portion that exports to of all thief holes less than the import of tap hole to the minimum range between sealing termination, sampling portion, it is beneficial to after the fluid media (medium) mixing thermometric in each laminar flow face that each thief hole enters just flow out from tap hole, improves accuracy of measurement.Ultimate range between the sealing termination, the sampling portion that exports to of all thief holes refers to the outlet of thief hole and topmost arrives the distance between sealing termination, sampling portion.The import of tap hole refers to the import bottom of tap hole to the distance between sealing termination, sampling portion to the minimum range between sealing termination, sampling portion.
The thermometer boss of described probe tube body connects and has thermometer, make the temperature probe of this thermometer in pipe connection portion extends into the hybrid chamber in sampling portion.
The hybrid chamber in described sampling portion is cylindrical, and this Cylindrical mixing chambers one end is hemispherical, and the other end connects with thermometer boss.
The termination of the temperature probe of described thermometer to the distance between sealing termination, sampling portion equal to the import of tap hole to the minimum range between sealing termination, sampling portion.The termination of the temperature probe of described thermometer is more than the ultimate range between the sealing termination, the sampling portion that exports to of all thief holes to the distance between sealing termination, sampling portion.
The axial line of all thief holes intersects at a point, wherein the axial line of a thief hole is vertical with the axial line of probe tube body, it is defined as vertical sampling hole, remaining thief hole tilts to vertical sampling hole respectively, the angle of inclination of each thief hole between described vertical sampling hole and pipe connection portion increases successively along vertical sampling hole to the direction of pipe connection portion, the angle of inclination of each thief hole between described vertical sampling hole and sealing termination, sampling portion increases successively along vertical sampling hole to the direction of sealing termination, sampling portion, the fluid media (medium) in each laminar flow face radially distributed in making this probe tube can obtain pipeline enters hybrid chamber and mixes.
The import center of each thief hole between vertical sampling hole and pipe connection portion to the distance between sealing termination, sampling portion more than the distance between its export center to sealing termination, sampling portion.The import center of each thief hole between vertical sampling hole and sealing termination, sampling portion to the distance between sealing termination, sampling portion less than the distance between its export center to sealing termination, sampling portion.
The angle of inclination between each thief hole and each thief hole one_to_one corresponding, and corresponding thief hole between vertical sampling hole and sealing termination, sampling portion between vertical sampling hole and pipe connection portion is equal.
More preferably, the angle of inclination of the thief hole farthest from vertical sampling hole is 30 °, certainly, the angle of inclination of the thief hole farthest from vertical sampling hole can also be adjusted according to practical situation, the fluid media (medium) in each laminar flow face in making acquisition pipeline, just flow out from tap hole after fluid media (medium) mixing from each laminar flow face that each thief hole enters, improve accuracy of measurement.
More preferably, angle between axial line and the axial line of probe tube body of tap hole is 45 °, the import center of tap hole to the distance between sealing termination, sampling portion more than the distance between its export center to sealing termination, sampling portion, certainly, angle between axial line and the axial line of probe tube body of tap hole can also be adjusted according to practical situation, in making hybrid chamber, medium is discharged from tap hole, in real time reflection pipeline internal medium temperature.
The outer wall in described sampling portion is provided with conical section and cylindrical section, the maximum outside diameter of the conical section in described sampling portion is equal with the external diameter of its cylindrical section, the external diameter of the cylindrical section in described sampling portion is less than the external diameter of pipe connection portion, one end of the conical section of described sampling portion outer wall is provided with spherical termination, seal termination, sampling portion, the other end of conical section of sampling portion outer wall is connected with one end of cylindrical section, and the other end of the cylindrical section of described sampling portion outer wall is connected with pipe connection portion by arc transition section.The external diameter of described pipe connection portion is more than the external diameter of thermometer installation portion, and the outer wall of pipe connection portion is connected by arc transition section with the outer wall of thermometer installation portion.Certainly, the outer wall in sampling portion can only have conical section, one end of the conical section of described sampling portion outer wall is provided with spherical termination, seal termination, sampling portion, the other end of the conical section of sampling portion outer wall is connected with pipe connection portion with by arc transition section, such structure makes the intensity of probe tube big, it is to avoid the damage that fractures because of the impact of pipeline internal medium fluid of sampling portion.
The import of described thief hole is provided with taper introducing port.
The length in described sampling portion is less than or equal to pipe radius, sets according to practical situation.
Thief hole is in the face of pipeline internal medium fluid inflow direction, and tap hole is positioned at thief hole offside.
Probe tube material is generally rustless steel.
The invention has the beneficial effects as follows: owing to the probe tube body of the probe tube for measuring pipeline fluid medium temperature of the present invention is sequentially provided with sampling portion, pipe connection portion, thermometer installation portion vertically, the thermometer installation portion of described probe tube body is provided with thermometer boss, for installing a thermometer in this thermometer boss.Only needing a thermometer just can measure the temperature in big each laminar flow face of pipeline internal medium fluid, temperature measurement accuracy is high.The end seals in the sampling portion of described probe tube body, the hybrid chamber for mixing is formed for the fluid media (medium) in each laminar flow face in sampling portion, this hybrid chamber connects with the thermometer boss of thermometer installation portion, make the temperature probe of the thermometer being arranged in thermometer boss in pipe connection portion extends into the hybrid chamber in sampling portion, the tube wall side in described sampling portion is provided with the thief hole of multiple fluid media (medium) for gathering each laminar flow face respectively, there is the thief hole of different guiding the side, sampling portion of probe tube, the medium fluid making each laminar flow face flows out through tap hole after being sufficiently mixed.The fluid media (medium) in each laminar flow face is sufficiently mixed in entering hybrid chamber respectively through each thief hole, flow out through tap hole after mixed fluid media (medium) thermometric, make the mean temperature that temperature is pipeline internal medium fluid that thermometer shows, improve the precision of temperature in thermometer reflection pipeline, it is adaptable to big pipeline medium fluid is had the occasion of accurate thermometric.
The invention will be further described with detailed description of the invention below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the structural representation of the probe tube of embodiments of the invention one；
Fig. 2 is the structural representation of the probe tube of embodiments of the invention two；
Fig. 3 is the operating diagram of the probe tube of the present invention.
In accompanying drawing, 1 is sampling portion, and 11 is thief hole, 111 is taper introducing port, and 12 is tap hole, and 13 is hybrid chamber, 14 is conical section, and 15 is cylindrical section, and 16 is spherical termination, 2 is pipe connection portion, and 3 is thermometer installation portion, and 31 is thermometer boss, 4 is arc transition section, 5 is thermometer, and 51 is temperature probe, and 6 is pipeline.
Detailed description of the invention
For understanding the summary of the invention of the present invention further, below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is elaborated.
Embodiment one
Seeing Fig. 1 and Fig. 3, a kind of probe tube for measuring pipeline fluid medium temperature, including probe tube body, described probe tube body is sequentially provided with sampling portion, pipe connection portion, thermometer installation portion vertically.The length in described sampling portion is less than or equal to pipe radius.The thermometer installation portion of described probe tube body is provided with thermometer boss, the end seals in the sampling portion of described probe tube body, forms the hybrid chamber for mixing for the fluid media (medium) in each laminar flow face in sampling portion.This hybrid chamber connects with the thermometer boss of thermometer installation portion.The hybrid chamber in described sampling portion is cylindrical, and this Cylindrical mixing chambers one end is hemispherical, and the other end connects with thermometer boss.The tube wall side in described sampling portion is provided with the thief hole of multiple fluid media (medium) for gathering each laminar flow face respectively.Preferably, the import of described thief hole is provided with taper introducing port.The tube wall opposite side in described sampling portion is provided with the tap hole for flowing out for fluid-mixing medium.Thief hole is in the face of pipeline internal medium fluid inflow direction, and tap hole is positioned at thief hole offside.The axial line of the axial line of probe tube body, the axial line of tap hole and all thief holes is respectively positioned on same plane.The summation of all thief hole sectional areas, equal to or less than the sectional area of tap hole, typically takes and is slightly less than.The aperture of the described thief hole of the present embodiment is 8mm.The aperture of tap hole is 16mm.Probe tube material is generally rustless steel.
The thermometer boss of described probe tube body connects and has thermometer, make the temperature probe of this thermometer in pipe connection portion extends into the hybrid chamber in sampling portion.The diameter of the temperature probe of the thermometer of the present embodiment is less than the diameter of thief hole.The termination of the temperature probe of thermometer described in the present embodiment to the distance between sealing termination, sampling portion equal to the import of tap hole to the minimum range between sealing termination, sampling portion, certainly, adjust also dependent on practical situation, make the fluid media (medium) from each laminar flow face that each thief hole enters mix, just flow out from tap hole after thermometric, improve accuracy of measurement, and beneficially medium is discharged from tap hole in hybrid chamber, reflection pipeline internal medium temperature in real time.
The termination of the temperature probe of described thermometer is more than the ultimate range between the sealing termination, the sampling portion that exports to of all thief holes to the distance between sealing termination, sampling portion.
The axial line of all thief holes intersects at a point, wherein the axial line of a thief hole is vertical with the axial line of probe tube body, it is defined as vertical sampling hole, remaining thief hole tilts to vertical sampling hole respectively, the angle of inclination of each thief hole between described vertical sampling hole and pipe connection portion increases successively along vertical sampling hole to the direction of pipe connection portion, and the angle of inclination of each thief hole between described vertical sampling hole and sealing termination, sampling portion increases successively along vertical sampling hole to the direction of sealing termination, sampling portion.The import center of each thief hole between vertical sampling hole and pipe connection portion to the distance between sealing termination, sampling portion more than the distance between its export center to sealing termination, sampling portion.The import center of each thief hole between vertical sampling hole and sealing termination, sampling portion to the distance between sealing termination, sampling portion less than the distance between its export center to sealing termination, sampling portion.The angle of inclination between each thief hole and each thief hole one_to_one corresponding, and corresponding thief hole between vertical sampling hole and sealing termination, sampling portion between vertical sampling hole and pipe connection portion is equal.The angle of inclination of the thief hole that the present embodiment is farthest from vertical sampling hole is 30 °.Angle between axial line and the axial line of probe tube body of the tap hole of the present embodiment is 45 °, and the distance between the import center of tap hole to sealing termination, sampling portion is more than the distance between its export center to sealing termination, sampling portion.The thief hole of the present embodiment has 5, and middle thief hole is vertical sampling hole, and the angle of inclination of the thief hole farthest from this vertical sampling hole is 30 °.The angle of inclination of the thief hole adjacent with this vertical sampling hole is 15 °.
The outer wall in described sampling portion is provided with conical section and cylindrical section, the maximum outside diameter of the conical section in described sampling portion is equal with the external diameter of its cylindrical section, the external diameter of the cylindrical section in described sampling portion is less than the external diameter of pipe connection portion, one end of the conical section of described sampling portion outer wall is provided with spherical termination, seal termination, sampling portion, the other end of conical section of sampling portion outer wall is connected with one end of cylindrical section, and the other end of the cylindrical section of described sampling portion outer wall is connected with pipe connection portion by arc transition section.The external diameter of described pipe connection portion is more than the external diameter of thermometer installation portion, and the outer wall of pipe connection portion is connected by arc transition section with the outer wall of thermometer installation portion.The external diameter of thermometer installation portion is more than the maximum outside diameter of the conical section in sampling portion.
Embodiment two
Seeing Fig. 2, the outer wall in described sampling portion is provided with conical section, and one end of the conical section of described sampling portion outer wall is provided with spherical termination, seals termination, sampling portion, and the other end of the conical section of sampling portion outer wall is connected with pipe connection portion with by arc transition section.The other technologies feature of the present embodiment is identical with embodiment one.
The present invention is not limited solely to above-described embodiment, carries out the technical scheme of few modifications in the case of without departing substantially from technical solution of the present invention spirit, should fall into protection scope of the present invention.
Claims (10)
1. the probe tube being used for measuring pipeline fluid medium temperature, it is characterized in that: include probe tube body, described probe tube body is sequentially provided with sampling portion vertically, pipe connection portion, thermometer installation portion, the thermometer installation portion of described probe tube body is provided with thermometer boss, the end seals in the sampling portion of described probe tube body, the hybrid chamber for mixing is formed for the fluid media (medium) in each laminar flow face in sampling portion, this hybrid chamber connects with the thermometer boss of thermometer installation portion, the tube wall side in described sampling portion is provided with the thief hole of multiple fluid media (medium) for gathering each laminar flow face respectively, the tube wall opposite side in described sampling portion is provided with the tap hole for flowing out for fluid-mixing medium.
Probe tube for measuring pipeline fluid medium temperature the most according to claim 1, it is characterised in that: the axial line of the axial line of probe tube body, the axial line of tap hole and all thief holes is respectively positioned on same plane.
Probe tube for measuring pipeline fluid medium temperature the most according to claim 1, it is characterised in that: the summation of all thief hole sectional areas is equal to or less than the sectional area of tap hole.
4. according to described in claim 1 or 3 for measuring the probe tube of pipeline fluid medium temperature, it is characterised in that: the ultimate range between the sealing termination, the sampling portion that exports to of all thief holes less than the import of tap hole to the minimum range between sealing termination, sampling portion.
Probe tube for measuring pipeline fluid medium temperature the most according to claim 1, it is characterized in that: connecting in the thermometer boss of described probe tube body has thermometer, makes the temperature probe of this thermometer in pipe connection portion extends into the hybrid chamber in sampling portion.
Probe tube for measuring pipeline fluid medium temperature the most according to claim 5, it is characterised in that: the distance between the termination of the temperature probe of described thermometer to sealing termination, sampling portion equal to the import of tap hole to the minimum range between sealing termination, sampling portion.
Probe tube for measuring pipeline fluid medium temperature the most according to claim 1, it is characterized in that: the axial line of all thief holes intersects at a point, wherein the axial line of a thief hole is vertical with the axial line of probe tube body, it is defined as vertical sampling hole, remaining thief hole tilts to vertical sampling hole respectively, the angle of inclination of each thief hole between described vertical sampling hole and pipe connection portion increases successively along vertical sampling hole to the direction of pipe connection portion, the angle of inclination of each thief hole between described vertical sampling hole and sealing termination, sampling portion increases successively along vertical sampling hole to the direction of sealing termination, sampling portion.
Probe tube for measuring pipeline fluid medium temperature the most according to claim 7, it is characterized in that: the angle of inclination between each thief hole and each thief hole one_to_one corresponding, and corresponding thief hole between vertical sampling hole and sealing termination, sampling portion between vertical sampling hole and pipe connection portion is equal.
9. according to the probe tube for measuring pipeline fluid medium temperature described in claim 7 or 8, it is characterised in that: the angle of inclination of the thief hole farthest from vertical sampling hole is 30 °.
Probe tube for measuring pipeline fluid medium temperature the most according to claim 1, it is characterized in that: the angle between axial line and the axial line of probe tube body of tap hole is 45 °, the distance between the import center of tap hole to sealing termination, sampling portion is more than the distance between its export center to sealing termination, sampling portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610526427.4A CN105953945A (en) | 2016-07-06 | 2016-07-06 | Sampling pipe used for measuring temperature of fluid medium in pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610526427.4A CN105953945A (en) | 2016-07-06 | 2016-07-06 | Sampling pipe used for measuring temperature of fluid medium in pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105953945A true CN105953945A (en) | 2016-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610526427.4A Pending CN105953945A (en) | 2016-07-06 | 2016-07-06 | Sampling pipe used for measuring temperature of fluid medium in pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105953945A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110702271A (en) * | 2019-11-14 | 2020-01-17 | 杭州兴长科技有限公司 | Pipeline liquid temperature detection device capable of automatically adjusting along with flow velocity |
| CN110836958A (en) * | 2019-10-28 | 2020-02-25 | 浙江大学 | Integrated multifunctional deep sea water body sampling probe |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203024879U (en) * | 2012-12-13 | 2013-06-26 | 中国核动力研究设计院 | Temperature measurement filler neck for main pipes |
-
2016
- 2016-07-06 CN CN201610526427.4A patent/CN105953945A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203024879U (en) * | 2012-12-13 | 2013-06-26 | 中国核动力研究设计院 | Temperature measurement filler neck for main pipes |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110836958A (en) * | 2019-10-28 | 2020-02-25 | 浙江大学 | Integrated multifunctional deep sea water body sampling probe |
| CN110836958B (en) * | 2019-10-28 | 2021-02-02 | 浙江大学 | Integrated multifunctional deep sea water body sampling probe |
| CN110702271A (en) * | 2019-11-14 | 2020-01-17 | 杭州兴长科技有限公司 | Pipeline liquid temperature detection device capable of automatically adjusting along with flow velocity |
| CN110702271B (en) * | 2019-11-14 | 2020-11-13 | 苏州市相城区阳澄产业园发展有限公司 | Pipeline liquid temperature detection device capable of automatically adjusting along with flow velocity |
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Application publication date: 20160921 |
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| RJ01 | Rejection of invention patent application after publication |