CN211206551U - Chimney gas collection pitot tube - Google Patents
Chimney gas collection pitot tube Download PDFInfo
- Publication number
- CN211206551U CN211206551U CN201922244260.4U CN201922244260U CN211206551U CN 211206551 U CN211206551 U CN 211206551U CN 201922244260 U CN201922244260 U CN 201922244260U CN 211206551 U CN211206551 U CN 211206551U
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- China
- Prior art keywords
- pitot tube
- static pressure
- pipe
- tube
- chimney
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a chimney gas collection pitot tube, including the pitot tube body, the outside of pitot tube body is provided with the outer tube, and the outer wall of outer tube is provided with the anticorrosive coating, the inside top of outer tube is provided with always presses the pipe, and the one end of always pressing the pipe is provided with always presses the gas outlet, the other end of always pressing the pipe is provided with always presses the hole, the below of always pressing the pipe is provided with the static pressure pipe, and the one end of static pressure pipe is provided with the static pressure gas outlet, the other end of static pressure pipe is provided with the static pressure hole, the top of pitot tube is provided with the. The utility model discloses because of being provided with the stationary flow cover, can be with unstable air current integration for stable air current in the chimney, be convenient for gather gas to make measured data more accurate detailed, because be provided with the anticorrosive coating on the overcoat pipe outer wall, the unable Pitot tube that corrodes of gas that has corrosivity in making the chimney makes the Pitot tube not fragile, protects the Pitot tube, thereby has increased the live time of Pitot tube.
Description
Technical Field
The utility model relates to a pitot tube field specifically is a gaseous collection pitot tube of chimney.
Background
A pitot tube, also known as an airspeed tube, an anemometer. A pitot tube is a tubular device that measures the total pressure and static pressure of an air stream to determine the velocity of the air stream, known by the invention of h. Strictly speaking, the pitot tube only measures the total pressure of the airflow, also known as a total pressure tube; the wind speed pipe is called when the total pressure and the static pressure are measured at the same time, but the wind speed pipe is usually called as a skin pipe supporter, a total pressure hole has a certain area, the average pressure near a stagnation point is sensed by the wind speed pipe and is slightly lower than the total pressure, the static pressure sensed by the static pressure hole has certain errors, and other errors such as manufacturing and installation also have errors, so a correction coefficient zeta is added when the flow speed is measured and calculated. The zeta value is generally in the range of 0.98 to 1.05, corrected in an air stream of known velocity or determined by standard pitot tube correction. The pitot tube has simple structure, convenient use and wide application. For example, a pitot tube is often installed on the nose of an aircraft or the leading edge of a wing to measure the flight speed of relative air, and the pitot tube is also called as an airspeed tube and is an extremely important measuring tool on the aircraft. The mounting position of the aircraft is required to be in an area where airflow outside the aircraft is less affected by the aircraft, and a plurality of small blades are also arranged outside the airspeed head of the aircraft in front of the aircraft nose and in front of the vertical tail or the wing tip and can also play a similar role; the vertical-mounted blade can be used for measuring the sideslip angle of the airplane, the horizontal-mounted blade can be used for measuring the attack angle of the airplane, and in order to prevent a small hole at the front end of the airspeed head from being frozen and blocked in flight, the airspeed head on the ordinary airplane is provided with an electric heating device.
For the existing chimney gas collection pitot tube, the gas in the chimney contains more corrosive gas, the pitot tube is easy to corrode after long-term use, the pitot tube is damaged, and the existing pitot tube can not stably collect the gas in the chimney, so that the pitot tube with good corrosion prevention effect and capable of stabilizing the gas is particularly important.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a chimney gas collection pitot tube to solve the problem among the prior art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a chimney gas collection pitot tube, includes the pitot tube body, the outside of pitot tube body is provided with the outer tube, and the outer wall of outer tube is provided with the anticorrosive coating, the inside top of outer tube is provided with presses the pipe altogether, and presses the one end of managing altogether to be provided with and presses the gas outlet altogether, the other end of pressing the pipe altogether is provided with presses the hole altogether, the below of pressing the pipe altogether is provided with the static pressure pipe, and the one end of static pressure pipe is provided with the static pressure gas outlet, the other end of static pressure pipe is provided with the static pressure hole, the top of pit.
Preferably, the radius of the total pressure holes and the radius of the static pressure holes are larger than the diameter of the solid particles in the chimney.
Preferably, the static pressure holes and the total pressure holes are arranged inside the flow stabilizing cover.
Preferably, a sealing ring is arranged between the flow stabilizing cover and the pitot tube body.
Preferably, the outer sleeve is outside the flow stabilization cap, and the flow stabilization cap is mounted on the outer wall of the static pressure tube and the total pressure tube.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses because of being provided with the stationary flow cover, can be with unstable air current integration for stable air current in the chimney, be convenient for gather gas to make measured data more accurate detailed, because be provided with the anticorrosive coating on the overcoat pipe outer wall, the unable Pitot tube that corrodes of gas that has corrosivity in making the chimney makes the Pitot tube not fragile, protects the Pitot tube, thereby has increased the live time of Pitot tube.
Drawings
Fig. 1 is a schematic structural view of the chimney gas collection pitot tube of the present invention.
Fig. 2 is a schematic view of the probe structure of the chimney gas collection pitot tube of the present invention.
In the figure: 1. a total pressure air outlet; 2. a total pressure pipe; 3. a static pressure tube; 4. a static pressure air outlet; 5. an anticorrosive layer; 6. an outer sleeve; 7. a flow stabilizing cover; 8. total pressure holes; 9. a static pressure port; 10. a pitot tube body.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, in an embodiment of the present invention, a chimney gas collecting pitot tube includes a pitot tube body 10, an outer sleeve 6 is disposed outside the pitot tube body 10, the outer sleeve 6 is used to fix a total pressure tube 2 and a static pressure tube 3, an anti-corrosion layer 5 is disposed on an outer wall of the outer sleeve 6 to prevent corrosive gas in a chimney from corroding the pitot tube, a total pressure tube 2 is disposed above an inner portion of the outer sleeve 6, a total pressure gas outlet 1 is disposed at one end of the total pressure tube 2, a total pressure hole 8 is disposed at the other end of the total pressure tube 2, a static pressure tube 3 is disposed below the total pressure tube 2, a static pressure gas outlet 4 is disposed at one end of the static pressure tube 3, a static pressure hole 9 is disposed at the other end of the static pressure tube 3, gas to be collected enters the total pressure tube 2 and the static pressure tube 3 from the total pressure hole 8 and the static pressure hole 9, then flow out to the instrument in from always pressing gas outlet 1 and static pressure gas outlet 4 respectively, pitot tube 10's top is provided with stationary flow cover 7, integrate unstable air current in the chimney into stable air current, it is more convenient stable when gathering gas, thereby the data that reachs are more real effective, the radius of always pressing hole 8 and static pressure hole 9 is greater than the diameter of solid state particulate matter in the chimney, prevent that solid state particulate matter blocks up always pressing hole 8 and static pressure hole 9 in the chimney, static pressure hole 9 and always pressing hole 8 are in the inside of stationary flow cover 7, be provided with the sealing washer between stationary flow cover 7 and the pitot tube body 10, prevent that gas from outflowing, outer tube 6 is in the outside of stationary flow cover 7, and stationary flow cover 7 installs on the outer wall of static pressure pipe 3 and total pressure pipe.
The utility model discloses a theory of operation is: will the utility model discloses in stretching into the chimney, the stationary flow cover 7 is integrated into stable air current with unstable air current in the chimney, and the air current enters into respectively from totally pressing hole 8 and static pressure hole 9 and totally presses in pipe 2 and the static pressure pipe 3, then is just measuring as in the measuring instrument from totally pressing gas outlet 1 and static pressure gas outlet 4 discharge respectively, reachs required data through calculating.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. The utility model provides a chimney gas collection pitot tube, includes pitot tube body (10), its characterized in that, the outside of pitot tube body (10) is provided with outer tube (6), and the outer wall of outer tube (6) is provided with anticorrosive coating (5), the inside top of outer tube (6) is provided with presses tub (2) totally, and presses the one end of tub (2) totally and be provided with and press gas outlet (1) totally, the other end of pressing tub (2) totally is provided with presses hole (8) totally, the below of pressing tub (2) totally is provided with static pressure pipe (3), and the one end of static pressure pipe (3) is provided with static pressure gas outlet (4), the other end of static pressure pipe (3) is provided with static pressure hole (9), the top of pitot tube body (10) is provided with stationary flow cover (.
2. The stack gas collection pitot tube of claim 1, wherein the total pressure holes (8) and static pressure holes (9) have a radius larger than the diameter of the solid particles in the stack.
3. A stack gas collection pitot tube according to claim 1, characterized in that the static pressure port (9) and the total pressure port (8) are inside the flow stabilizing hood (7).
4. The chimney gas collection pitot tube according to claim 1, characterized in that a sealing ring is arranged between the flow stabilizing hood (7) and the pitot tube body (10).
5. A stack gas collection pitot tube according to claim 1, characterized in that the outer sleeve (6) is outside the flow stabilizing hood (7) and the flow stabilizing hood (7) is mounted on the outer wall of the static pressure tube (3) and the total pressure tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922244260.4U CN211206551U (en) | 2019-12-13 | 2019-12-13 | Chimney gas collection pitot tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922244260.4U CN211206551U (en) | 2019-12-13 | 2019-12-13 | Chimney gas collection pitot tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211206551U true CN211206551U (en) | 2020-08-07 |
Family
ID=71855597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922244260.4U Expired - Fee Related CN211206551U (en) | 2019-12-13 | 2019-12-13 | Chimney gas collection pitot tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211206551U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI762081B (en) * | 2020-12-15 | 2022-04-21 | 睿普工程股份有限公司 | Flow rate monitoring system, zero point correction method, full width correction method and flushing and correction method |
-
2019
- 2019-12-13 CN CN201922244260.4U patent/CN211206551U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI762081B (en) * | 2020-12-15 | 2022-04-21 | 睿普工程股份有限公司 | Flow rate monitoring system, zero point correction method, full width correction method and flushing and correction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200807 Termination date: 20201213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |