CN217542546U - High-temperature gas sampling rake for gas analysis and temperature measurement - Google Patents
High-temperature gas sampling rake for gas analysis and temperature measurement Download PDFInfo
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- CN217542546U CN217542546U CN202221639388.6U CN202221639388U CN217542546U CN 217542546 U CN217542546 U CN 217542546U CN 202221639388 U CN202221639388 U CN 202221639388U CN 217542546 U CN217542546 U CN 217542546U
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- 238000005070 sampling Methods 0.000 title claims abstract description 134
- 238000004868 gas analysis Methods 0.000 title claims abstract description 42
- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 40
- 239000000498 cooling water Substances 0.000 claims abstract description 76
- 239000000956 alloy Substances 0.000 claims abstract description 5
- 238000012545 processing Methods 0.000 claims description 9
- 238000009826 distribution Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000010146 3D printing Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims 1
- 238000004861 thermometry Methods 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 14
- 238000002474 experimental method Methods 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 description 10
- 238000002485 combustion reaction Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000000306 component Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The utility model provides a high-temperature gas sampling rake for gas analysis and temperature measurement, which is integrally processed and molded by high-temperature alloy materials, and a sampling hole is arranged on one end surface of a sampling rake body; the transverse sampling tube and the longitudinal special-shaped tube are arranged in the sampling body, one end part of the transverse sampling tube is connected with the corresponding sampling hole, and the other end part of the transverse sampling tube is connected with one end part of the corresponding longitudinal special-shaped tube; the sample gas outlet is arranged on the other end face of the sampling rake body, and the other end of the longitudinal special pipe is connected with the corresponding sample gas outlet; the cooling water inlet and the cooling water outlet are arranged on the other end face of the sampling body and are positioned on two sides of the sample gas outlet, so that the cooling water enters from one side of the sampling body and is discharged from the other side. The utility model discloses can ensure the reliability of sample harrow under the high temperature condition about 2300K, indirectly avoided the problem that sample harrow became invalid and cause the experiment to suspend in the experiment, effectual long and then reduced the testing cost when having reduced unit test, promote test efficiency.
Description
Technical Field
The utility model relates to an aeroengine combustion chamber performance test technical field, in particular to high temperature gas sample harrow for temperature measurement of gas analysis.
Background
In recent years, the temperature and pressure at the outlet of the combustion chamber have been increasing due to the increase in the intake state of the combustion chamber of the engine, and when a large-state test of the temperature distribution at the outlet of the combustion chamber is carried out, it is required that the temperature measuring device can withstand a high temperature condition of about 2300K.
The conventional temperature measuring thermocouple can not meet the requirement, the content of each component of the sample gas is obtained through gas analysis, and the sample gas temperature is indirectly obtained based on enthalpy conservation, so that the method is more suitable for the high-temperature measuring environment. However, as a core component of gas sampling, a gas sampling rake with higher temperature resistance, higher pressure resistance and longer service life is always a technical problem which needs to be overcome when gas analysis and temperature measurement are carried out.
The technical scheme of the existing gas sampling rake adopts machining and welding manufacturing processes, is limited by machining process precision and machining feasibility, and has the phenomena of uneven wall thickness, welding seams and the like.
When the sampling rake is used for a combustion chamber outlet temperature distribution test in a large state, reliability problems such as weld cracking, local bulge and the like are easily caused, so that the service life of the sampling rake is only one time or a plurality of times, and the test is forced to be stopped due to the failure of the sampling rake.
When the existing sampling rake is used for carrying out a large-state combustion chamber outlet temperature distribution test, the existing sampling rake is difficult to tolerate a high-temperature sampling environment of about 2300K, and the reliability and the service life of the sampling rake are not high.
In view of the above, the present inventors have devised a high temperature gas sampling rake for gas analysis and temperature measurement to overcome the above technical problems.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is that when overcoming among the prior art big state combustion chamber export temperature distribution test, defects such as sample harrow reliability and life are not high provide a high temperature gas sample harrow for gas analysis temperature measurement.
The utility model discloses a solve above-mentioned technical problem through following technical scheme:
the utility model provides a gas analysis temperature measurement is with high temperature gas sampling harrow which characterized in that, gas analysis temperature measurement is with high temperature gas sampling harrow adopts high temperature alloy material integrated into one piece, gas analysis temperature measurement is with high temperature gas sampling harrow includes:
the sampling rake comprises a sampling rake body, wherein at least one sampling hole is formed in one end face of the sampling rake body;
at least one transverse sampling tube and at least one longitudinal special-shaped tube are arranged in the sample taking body, one end part of the transverse sampling tube is connected with the corresponding sampling hole, and the other end part of the transverse sampling tube is connected with one end part of the corresponding longitudinal special-shaped tube;
the sampling rake body is provided with a sampling gas outlet, the sampling gas outlet is arranged on the other end face of the sampling rake body, and the other end of the longitudinal special pipe is connected with the corresponding sampling gas outlet;
and the cooling water inlet and the cooling water outlet are arranged on the other end face of the sampling body and positioned at two sides of the sample gas outlet, so that the cooling water enters from one side of the sampling body and is discharged from the other side.
According to the utility model discloses an embodiment, the thief hole is the equidiameter, is the equal ring face or equidistant distribution.
According to an embodiment of the present invention, the sampling body comprises a transverse body portion and a vertical body portion, the transverse sampling tube is located in the transverse body portion, and the longitudinal profile tube is located in the vertical body portion.
According to the utility model discloses an embodiment, high temperature gas sample harrow for gas analysis temperature measurement still includes at least one impingement cooling water pipe, impingement cooling water pipe cover is established correspondingly the periphery of horizontal sampling tube.
According to the utility model discloses an embodiment, gas analysis is high temperature gas sample harrow for temperature measurement still includes a water-stop sheet, water-stop sheet one end with impingement cooling water piping connection, the other end with another terminal surface of sample body is connected, will left side cooling water cavity and right side cooling water cavity are separated into to the sample body.
According to the utility model discloses an embodiment, be provided with at least one transverse channel mouth on the water-stop sheet, transverse channel mouth with correspond impingement cooling water pipe intercommunication, the cooling water via transverse channel mouth gets into impingement cooling water pipe.
According to the utility model discloses an embodiment, cooling water inlet and right side cooling water cavity intercommunication, the cooling water export communicates with left side cooling water cavity.
According to the utility model discloses an embodiment, gas analysis temperature measurement is with high temperature gas sample harrow still includes at least one guide plate, the guide plate is installed in horizontal this internal portion, with a terminal surface of sample harrow body is connected, is located corresponding adjacent two between the horizontal sampling tube.
According to an embodiment of the present invention, the lateral sampling tube is provided with a sudden expansion section.
According to the utility model discloses an embodiment, high temperature gas sample harrow for gas analysis temperature measurement adopts 3D to print manufacturing process.
The utility model discloses an actively advance the effect and lie in:
the utility model discloses high temperature gas sample harrow for gas analysis temperature measurement adopts 3D to print the gas sample harrow of processing, can ensure the reliability of sample harrow under the high temperature condition about 2300K, has avoided sample harrow inefficacy in the experiment to cause the problem of experimental suspension indirectly, and the effectual long and then reduced test cost when having reduced unit test, promotion test efficiency.
Drawings
The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which like reference numerals refer to like features throughout, and in which:
fig. 1 is a schematic diagram of the internal structure of the high-temperature gas sampling rake for gas analysis and temperature measurement of the present invention.
Fig. 2 isbase:Sub>A cross-sectional view taken along linebase:Sub>A-base:Sub>A of fig. 1.
Fig. 3 is a cross-sectional view taken along line B-B in fig. 1.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.
Further, although the terms used in the present invention are selected from publicly known and used terms, some of the terms mentioned in the description of the present invention may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein.
Furthermore, it is required that the present invention is understood, not simply by the actual terms used but by the meaning of each term lying within.
Fig. 1 is a schematic diagram of the internal structure of the high-temperature gas sampling rake for gas analysis and temperature measurement of the present invention.
Fig. 2 isbase:Sub>A cross-sectional view taken along linebase:Sub>A-base:Sub>A of fig. 1.
Fig. 3 is a cross-sectional view taken along line B-B of fig. 1.
As shown in fig. 1 to 3, the utility model discloses a gas analysis is high temperature gas sample harrow for temperature measurement, it adopts high temperature alloy material integrated into one piece, gas analysis is high temperature gas sample harrow for temperature measurement includes: the sampling rake comprises a sampling rake body 10, at least one transverse sampling tube 20, at least one longitudinal profile tube 30, at least one sample gas outlet 40, a cooling water outlet 50 and a cooling water inlet 60. Wherein, an end face of the sampling rake body 10 is provided with at least one sampling hole 11.
The transverse sampling tube 20 is disposed in the sampling body 10, one end of the transverse sampling tube 20 is connected to the corresponding sampling hole 11, and the other end of the transverse sampling tube 20 is connected to one end of the corresponding longitudinal profile tube 30. Preferably, a sudden expansion 21 is provided on the transverse sampling tube 20.
The sample gas outlet 40 is installed on the other end surface of the sampling rake body 10, and the other end of the longitudinal special pipe 30 is connected to the corresponding sample gas outlet 40. The cooling water outlet 50 and the cooling water inlet 60 are disposed on the other end surface of the sampling body 10 at both sides of the sample gas outlet 40, so that the cooling water enters from one side of the sampling body 10 and is discharged from the other side.
Preferably, the sampling holes 11 may be arranged with equal diameter, in an equal ring surface or at equal intervals.
In this embodiment, the sampling body 10 comprises a transverse body portion 12 and a vertical body portion 13, the transverse sampling tube 20 being located in the transverse body portion 12 and the longitudinal profile tube 30 being located in the vertical body portion 13.
Further, the high-temperature gas sampling rake for gas analysis and temperature measurement further comprises at least one impingement cooling water pipe 70, and the impingement cooling water pipe 70 is sleeved on the periphery of the corresponding transverse sampling pipe 20.
The high-temperature gas sampling rake for gas analysis and temperature measurement further comprises a water-stop sheet 80, one end of the water-stop sheet 80 is connected with the impingement cooling water pipe 70, the other end of the water-stop sheet is connected with the other end face of the sampling body 10, and the sampling body 10 is divided into a left cooling water cavity 14 and a right cooling water cavity 15. The water stop plate 80 is provided with at least one transverse passage port 81, the transverse passage port 81 is communicated with the corresponding impingement cooling water pipe 70, and the cooling water enters the impingement cooling water pipe 70 through the transverse passage port 81.
Preferably, the cooling water inlet 60 communicates with the right side cooling water chamber 15, and the cooling water outlet 50 communicates with the left side cooling water chamber 14.
The high-temperature gas sampling rake for gas analysis and temperature measurement further comprises at least one guide plate 90, wherein the guide plate 90 is installed in the transverse body part 12, is connected with one end face of the sampling rake body 10 and is located between two corresponding adjacent transverse sampling tubes 20.
The high-temperature gas sampling rake for gas analysis and temperature measurement adopts a 3D printing processing manufacturing process.
According to the structure description, the utility model discloses high temperature gas sample harrow for gas analysis temperature measurement prints processing technology design and manufacturing based on 3D, whole sample harrow integrated into one piece. The gas sampling rake is made of high-temperature alloy materials through integrated processing, and cavities between the solid parts are used for cooling water circulation and sample gas circulation. The end face of the sampling rake body 10 is provided with 3 sampling holes 11 which have the same diameter and are distributed in an equal annular surface or at equal intervals along the height direction, so that 3-point simultaneous sampling can be realized. The sampling hole 11 is connected with a transverse sampling tube 20, and the sample gas flows into the sampling rake from the sampling hole 11 and then flows along the transverse sampling tube 20. The transverse sampling tube 20 is provided with a sudden expansion section 21, the sample gas can realize pneumatic cooling in the sudden expansion section 21 through sudden expansion and depressurization, and meanwhile, the surface area of the transverse sampling tube after sudden expansion is increased, namely the contact area with cooling water is increased, so that the forced heat exchange and cooling of the cooling water are further enhanced.
Then, the sample gas naturally transits through the transverse sampling tube 20 and flows into the longitudinal special-shaped tube 30, and the longitudinal special-shaped tube 30 is further expanded to strengthen pneumatic cooling and cooling again, so that the high-temperature gas of about 2300K can be cooled to about 473K when flowing out from the sample gas outlet 40, and the sampling requirement of gas analysis temperature measurement is met.
The gas sampling rake is provided with a cooling water inlet and a cooling water outlet and a left cooling water cavity and a right cooling water cavity which are separated by a water-stop sheet 80, and cooling water supplied from the outside circulates in the whole sampling rake, so that the sampling rake body 10 is cooled and the sample gas is cooled.
After cooling water supplied from the outside is supplied to the sampling rake from the cooling water inlet, the cooling water firstly flows into the right cooling water cavity 15 which is integrally in a C shape, when the cooling water is filled in the right cooling water cavity from top to bottom, the two side wall surfaces of the right half part of the sampling rake body and the longitudinal special pipe 30 in the middle of the cavity can be simultaneously cooled, and the sampling gas in the sampling rake body 10 and the special pipe can be cooled. On the lower water stop 80 of the right cooling water chamber 15, three transverse passage openings 81 are provided, through which cooling water can enter the transverse impingement cooling water tubes 70. The cooling water flows from right to left in the transverse impact cooling water pipe 70 and is accelerated due to the reduction of the flow area, and finally impacts on the end face of the sampling rake body 10 to perform impact cooling on the end face of the sampling rake body and the joint of the end face and the transverse sampling pipe 20, so that the cooling effect is strengthened to the maximum degree. The cooling water turns back after impacting the terminal surface of sample harrow body 10 and is full of left side cooling water cavity 14 along guide plate 90 to assemble at the guide plate 90 end, be full of left side cooling water cavity 14 along water-stop sheet 80, cool the half part on the left side of sample harrow, finally flow into sample harrow from the cooling water outlet.
Adopt 3D to print the sample harrow of processing manufacturing process, the condition of sample harrow body thickness inequality and surface weld can not appear, has obtained the abundant cooling of cooling water again, very big guarantee the reliability and the life of sample harrow under the high temperature operating mode, can be applicable to the gas analysis temperature measurement experiment about 2300K and use.
The utility model discloses high temperature gas sample harrow for gas analysis temperature measurement based on 3D prints the processing mode, to the biggest problem of sample harrow terminal surface heat load, has designed the cooling water impact cooling method, ensures the reliability of sample harrow terminal surface under extreme high temperature sampling environment. To the problem that the temperature of the sample gas in the sampling rake is high and the requirement for cooling is high, the sample gas pipeline with contraction, expansion and special-shaped expansion is designed, and the cooling effect of cooling water on the sample gas is greatly enhanced.
To sum up, the utility model discloses high temperature gas sample harrow for gas analysis temperature measurement adopts 3D to print the gas sample harrow of processing, can ensure the sample harrow reliability under the high temperature condition about 2300K, has avoided the problem that sample harrow became invalid and causes the experiment to suspend in the experiment indirectly, and the effectual unit test that has reduced is long and then reduced test cost, promotes test efficiency.
Although particular embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are examples only and that the scope of the present invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are all within the scope of the invention.
Claims (10)
1. The utility model provides a gas analysis temperature measurement is with high temperature gas sample harrow which characterized in that, gas analysis temperature measurement is with sample harrow adoption high temperature alloy material integrated processing shaping, gas analysis temperature measurement is with high temperature gas sample harrow includes:
the sampling rake comprises a sampling rake body, wherein at least one sampling hole is formed in one end face of the sampling rake body;
at least one transverse sampling tube and at least one longitudinal special-shaped tube are arranged in the sample taking body, one end part of the transverse sampling tube is connected with the corresponding sampling hole, and the other end part of the transverse sampling tube is connected with one end part of the corresponding longitudinal special-shaped tube;
the sampling rake body is provided with a sampling gas outlet, the sampling gas outlet is arranged on the other end face of the sampling rake body, and the other end of the longitudinal special pipe is connected with the corresponding sampling gas outlet;
and the cooling water inlet and the cooling water outlet are arranged on the other end face of the sampling body and positioned at two sides of the sample gas outlet, so that the cooling water enters from one side of the sampling body and is discharged from the other side.
2. The high temperature gas sampling rake for gas analysis and temperature measurement as claimed in claim 1, wherein the sampling holes are of equal diameter, in an equal ring surface or in equal spacing distribution.
3. The high temperature gas sampling rake for gas analysis thermometry as claimed in claim 1, wherein the sampling body comprises a transverse body portion and a vertical body portion, the transverse sampling tube being located within the transverse body portion and the longitudinal profile tube being located within the vertical body portion.
4. The high-temperature gas sampling rake for gas analysis and temperature measurement as claimed in claim 3, further comprising at least one impingement cooling water pipe, wherein the impingement cooling water pipe is sleeved on the periphery of the corresponding transverse sampling pipe.
5. The high-temperature gas sampling rake for gas analysis and temperature measurement as claimed in claim 4, further comprising a water-stop plate, wherein one end of the water-stop plate is connected to the impingement cooling water pipe, and the other end of the water-stop plate is connected to the other end face of the sampling body, so as to divide the sampling body into a left cooling water cavity and a right cooling water cavity.
6. The high-temperature gas sampling rake for gas analysis and temperature measurement according to claim 5, wherein at least one transverse passage port is formed in the water-stop plate, the transverse passage port is communicated with the corresponding impingement cooling water pipe, and cooling water enters the impingement cooling water pipe through the transverse passage port.
7. The high-temperature gas sampling rake for gas analysis and temperature measurement as claimed in claim 5, wherein the cooling water inlet is communicated with the right cooling water cavity, and the cooling water outlet is communicated with the left cooling water cavity.
8. The high-temperature gas sampling rake for gas analysis and temperature measurement as claimed in claim 3, further comprising at least one flow guide plate, wherein the flow guide plate is installed in the transverse body part, connected to one end face of the sampling rake body, and located between two corresponding adjacent transverse sampling pipes.
9. The high-temperature gas sampling rake for gas analysis and temperature measurement as claimed in claim 1, wherein the transverse sampling tube is provided with a sudden expansion section.
10. The high-temperature gas sampling rake for gas analysis and temperature measurement as recited in claim 1, wherein the high-temperature gas sampling rake for gas analysis and temperature measurement adopts 3D printing processing manufacturing technology.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221639388.6U CN217542546U (en) | 2022-06-28 | 2022-06-28 | High-temperature gas sampling rake for gas analysis and temperature measurement |
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| CN202221639388.6U CN217542546U (en) | 2022-06-28 | 2022-06-28 | High-temperature gas sampling rake for gas analysis and temperature measurement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116659973A (en) * | 2023-07-05 | 2023-08-29 | 西安热工研究院有限公司 | A sampling rake combining independent sampling and combined sampling |
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2022
- 2022-06-28 CN CN202221639388.6U patent/CN217542546U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116659973A (en) * | 2023-07-05 | 2023-08-29 | 西安热工研究院有限公司 | A sampling rake combining independent sampling and combined sampling |
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