CN216309311U - Pipeline pressure taking structure - Google Patents
Pipeline pressure taking structure Download PDFInfo
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- CN216309311U CN216309311U CN202122573123.2U CN202122573123U CN216309311U CN 216309311 U CN216309311 U CN 216309311U CN 202122573123 U CN202122573123 U CN 202122573123U CN 216309311 U CN216309311 U CN 216309311U
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Abstract
The utility model discloses a pipeline pressure taking structure, which comprises: the pipeline penetrates through the wall of the pipeline and is provided with a pressure taking hole; the sleeve is sleeved on the pipeline, a pressure measuring ring chamber is arranged between the inner wall of the sleeve and the outer wall of the pipeline, the sleeve is provided with a communicating hole penetrating through the wall of the sleeve and a pressure measuring device connected with the communicating hole, and fluid in the pipeline is connected with the pressure measuring device through the pressure measuring hole, the pressure measuring ring chamber and the communicating hole; and a sealing device for mounting the sleeve on the pipeline and sealing the pressure ring taking chamber. Compared with the prior art, the pipeline of the pipeline pressure measuring structure is provided with the pressure measuring hole, when the sleeve provided with the communicating hole is sleeved in the pipeline, the pressure measuring ring chamber is formed between the inner wall of the sleeve and the outer wall of the pipeline, and fluid pressure in the pipeline is introduced into the pressure measuring device connected to the sleeve through the pressure measuring hole, the pressure measuring ring chamber and the communicating hole, so that the problem that the pipeline is deformed to cause incapability of measuring or incapability of accurately measuring the fluid pressure due to direct welding on the pipeline is avoided.
Description
Technical Field
The utility model belongs to the field of reactor thermal experiments, and particularly relates to a pipeline pressure taking structure.
Background
In order to ensure the safe operation of a nuclear power plant, the field of reactor thermal engineering experiments often needs to detect the fluid pressure in some micro-pipelines.
In the related art, a method for measuring the pressure of fluid in a micro-duct includes: and a pressure measuring hole is formed in the micro pipeline, a pressure measuring device is directly welded on the micro pipeline and communicated with the pressure measuring hole, and the measurement of the fluid pressure in the micro pipeline is realized through the pressure measuring device. However, since the diameter of the fine pipe is small, the fine pipe is easily deformed or clogged by direct welding, and the fluid pressure of the fine pipe cannot be measured or cannot be accurately measured.
In view of this, it is necessary to provide a pressure measuring structure for a pipeline, which can measure pressure accurately.
SUMMERY OF THE UTILITY MODEL
The utility model aims to: the pipeline pressure measuring structure overcomes at least one defect in the prior art and can accurately measure pressure.
In order to achieve the above object, the present invention provides a pipe pressure tapping structure, including:
the pipeline penetrates through the wall of the pipeline and is provided with a pressure taking hole;
the sleeve is sleeved on the pipeline, a pressure measuring ring chamber is arranged between the inner wall of the sleeve and the outer wall of the pipeline, the sleeve is provided with a communicating hole penetrating through the wall of the sleeve and a pressure measuring device connected with the communicating hole, and fluid in the pipeline is connected with the pressure measuring device through the pressure measuring hole, the pressure measuring ring chamber and the communicating hole; and
and the sealing device is used for installing the sleeve on the pipeline and sealing the pressure taking ring chamber.
According to one embodiment of the pressure tapping structure for pipes of the present invention, the sealing means comprises a packing abutting against the sleeve and a gland nut for sealing the packing against the pressure tapping ring chamber.
According to one embodiment of the pressure tapping structure for the pipeline, the outer wall surface of the sleeve is provided with external threads, the inner wall surface of the compression nut is provided with internal threads, the compression nut is detachably mounted on the sleeve through threaded connection, and the sealing ring seals the pressure tapping ring chamber.
According to one embodiment of the pressure tapping structure for the pipeline, the pressure of the sealing ring can be not less than 15.5Mpa, and the temperature can be not less than 360 ℃.
According to one embodiment of the pressure tapping structure for the pipeline, the sealing ring is a red copper sealing ring.
According to one embodiment of the pressure tapping structure for pipes of the present invention, the sleeve is made of stainless steel.
According to one embodiment of the pressure taking structure of the pipeline, an exhaust hole communicated with the pressure taking ring chamber is formed in the sleeve wall in a penetrating mode.
According to an embodiment of the pressure tapping structure for a pipeline, the sealing device includes a first flange hermetically fixed to an end of the sleeve, a second flange connected to the first flange, and a sealing ring disposed between the first flange and the second flange.
According to one embodiment of the pressure measuring structure for the pipeline, the sealing ring is an O-shaped rubber sealing ring, the pressure can be borne by not less than 15.5MPa, and the temperature can be borne by not less than 360 ℃.
According to one embodiment of the pressure tapping structure for a pipe of the present invention, the outer diameter of the pipe is 3 to 6 mm.
Compared with the prior art, the pipeline of the pipeline pressure measuring structure is provided with the pressure measuring hole, when the sleeve provided with the communicating hole is sleeved in the pipeline, the pressure measuring ring chamber is formed between the inner wall of the sleeve and the outer wall of the pipeline, and fluid pressure in the pipeline is introduced into the pressure measuring device connected to the sleeve through the pressure measuring hole, the pressure measuring ring chamber and the communicating hole, so that the problem that the pipeline is deformed to cause incapability of measuring or incapability of accurately measuring the fluid pressure due to direct welding on the pipeline is avoided.
Drawings
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, wherein:
fig. 1 is a schematic cross-sectional view of a first embodiment of a pressure tapping structure for a pipeline according to the present invention.
Fig. 2 is a schematic cross-sectional view of a second embodiment of the pressure tapping structure for a pipeline according to the present invention.
Wherein:
10- -a pipe; 100- -pressure tapping hole; 20- -a sleeve; 200-taking a pressure ring chamber; 202- -communicating hole; 204- -pressure measuring device; 206- -a vent hole; 30- -sealing ring; 40- -compression nut; 510 — a first flange; 512- -a second flange; 514- -sealing ring.
Detailed Description
In order to make the objects, technical solutions and technical effects of the present invention more clear, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1, the present invention provides a pressure measuring structure for a pipeline, including:
a pipeline 10, a pressure tapping hole 100 is arranged through the wall of the pipeline;
the sleeve 20 is sleeved on the pipeline 10, a pressure measuring ring chamber 200 is arranged between the inner wall of the sleeve 20 and the outer wall of the pipeline 10, the sleeve 20 is provided with a communicating hole 202 penetrating through the sleeve wall and a pressure measuring device 204 connected with the communicating hole 202, and fluid in the pipeline 10 is connected with the pressure measuring device 204 through the pressure measuring hole 100, the pressure measuring ring chamber 200 and the communicating hole 202; and
and a sealing device for installing the sleeve 20 on the pipe 10 and sealing the pressure extraction ring chamber 200.
The sleeve 20 is a hollow cylinder made of stainless steel material and has a shape and size that matches the shape and size of the pipe 10. In the embodiment shown in FIG. 1, the inner diameter of the sleeve 20 is slightly larger than the outer diameter of the pipe 10, thereby forming a pressure extraction annulus 200 between the pipe 10 and the sleeve 20. The pressure ring taking chamber 200 is communicated with a pressure taking hole 100 formed in the pipeline 10, and fluid in the pipeline 10 enters the pressure ring taking chamber 200 through the pressure taking hole 100 and is relatively static in the pressure ring taking chamber 200, so that the accuracy of pressure measurement can be improved. The pressure measuring device 204 is connected to the pipeline 10 by welding and communicated with the pressure taking ring chamber 200, is connected with the pressure and pressure difference meter in a clamping sleeve type manner by threaded connection, and can be detached and recycled after measurement is completed, so that the measurement cost is reduced.
According to the first embodiment of the present invention, the sealing device includes two sealing rings 30 abutting against both ends of the sleeve 20 and two compression nuts 40 for sealing the two sealing rings 30 with the pressure ring taking chamber 200, wherein an external thread is provided on an outer wall surface of the sleeve 20, an internal thread is correspondingly provided on an inner wall surface of the compression nut 40, the compression nut 40 is detachably mounted on the sleeve 20 through a threaded connection, and the sealing rings 30 tightly abut against an end of the sleeve 20 and an outer wall of the pipeline 10, thereby achieving sealing of the pressure ring taking chamber 200. Through threaded connection, the pipeline is got and is pressed the dismantlement of structure convenient, can further promote thermotechnical experiment pressure measurement efficiency, saves the cost.
The seal ring 30 is a high temperature and high pressure resistant seal ring, for example, according to an embodiment of the pressure tapping structure for pipeline of the present invention, the seal ring 30 can bear a pressure of not less than 15.5Mpa and a temperature of not less than 360 ℃. According to a preferred embodiment of the pressure tapping structure for pipelines of the present invention, the sealing ring 30 is a red copper sealing ring, which can not only withstand high temperature and high pressure, but also has good deformability. When the compression nut 40 is screwed, the red copper seal ring can be deformed and attached to the end of the sleeve 20 and the outer wall of the pipe 10, so that the pressure extraction ring chamber 200 is sealed.
To avoid the effect of bubbles in the fluid on the accuracy of the pressure measurement, a vent hole 206 is provided through the sleeve wall in communication with the pressure extraction annulus 200. When bubbles are present in the fluid, the bubbles in the fluid may be vented through vent 206 prior to taking a pressure measurement.
Referring to fig. 2, a schematic cross-sectional view of a second embodiment of the pressure tapping structure for a pipeline according to the present invention is shown, where the structure of the second embodiment is substantially the same as that of the first embodiment, except that: a different sealing means is used in the second embodiment.
In the second embodiment shown in fig. 2, the sealing device includes a first flange 510 sealingly fixed to the end of the sleeve 20, a second flange 512 connected to the first flange 510 (e.g., the first flange 510 and the second flange 512 are screwed), and a sealing ring 514 disposed between the first flange 510 and the second flange 512, wherein the sealing ring 514 can be compressed by the screwing to seal the pressure extraction ring chamber 200. According to an embodiment of the present invention, the first flange 510 and the second flange 512 are provided with a recess (not shown), and the sealing ring 514 is installed in the recess by using an O-ring type rubber sealing ring, and can withstand a pressure of not less than 15.5Mpa and a temperature of not less than 360 ℃.
In the embodiment shown in fig. 1 and 2, the outer diameter of the pipe 10 is 3-6 mm. However, it will be understood by those skilled in the art that the pressure measuring structure of the present invention can be applied to the measurement of fluid pressure in pipes of other sizes.
As can be seen from the above detailed description of the embodiments of the present invention, compared with the prior art, the pressure tapping hole 100 is formed on the pipe 10 of the pipe pressure tapping structure of the present invention, when the sleeve 20 having the communication hole 202 is sleeved in the pipe 10, the pressure tapping ring chamber 200 is formed between the inner wall of the sleeve 20 and the outer wall of the pipe 10, and the fluid pressure in the pipe 10 is introduced into the pressure measuring device 204 connected to the sleeve 20 through the pressure tapping hole 100, the pressure tapping ring chamber 200 and the communication hole 202, so as to avoid that the fluid pressure cannot be measured or cannot be accurately measured due to the deformation of the pipe caused by direct welding on the pipe 10.
The present invention can be modified and adapted appropriately from the above-described embodiments, according to the principles described above. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (10)
1. A structure is got to pipeline, its characterized in that includes:
the pipeline penetrates through the wall of the pipeline and is provided with a pressure taking hole;
the sleeve is sleeved on the pipeline, a pressure measuring ring chamber is arranged between the inner wall of the sleeve and the outer wall of the pipeline, the sleeve is provided with a communicating hole penetrating through the wall of the sleeve and a pressure measuring device connected with the communicating hole, and fluid in the pipeline is connected with the pressure measuring device through the pressure measuring hole, the pressure measuring ring chamber and the communicating hole; and
and the sealing device is used for installing the sleeve on the pipeline and sealing the pressure taking ring chamber.
2. A pipe pressure tapping structure as claimed in claim 1, wherein the sealing means comprises a sealing ring abutting against the sleeve and a gland nut for sealing the sealing ring against the pressure tapping ring chamber.
3. The pressure tapping structure for pipelines according to claim 2, wherein an external thread is provided on an outer wall surface of the sleeve, an internal thread is provided on an inner wall surface of the compression nut, and the compression nut is detachably mounted on the sleeve through a threaded connection, and the seal ring seals the pressure tapping ring chamber.
4. A pressure tapping structure for a pipeline according to claim 2, wherein said sealing ring can withstand a pressure of not less than 15.5Mpa and a temperature of not less than 360 ℃.
5. The pressure tapping structure for pipes according to claim 4, wherein the sealing ring is a red copper sealing ring.
6. The pressure tapping structure for pipes according to claim 1, wherein the sleeve is made of stainless steel.
7. A pressure tapping arrangement for a pipeline according to claim 1, wherein a vent hole is provided through the sleeve wall in communication with the pressure tapping annulus.
8. A pipeline pressure tapping structure as claimed in claim 1, wherein the sealing means comprises a first flange sealingly secured to the end of the sleeve, a second flange connected to the first flange, and a sealing ring disposed between the first and second flanges.
9. The pressure tapping structure for pipelines according to claim 8, wherein the sealing ring is an O-shaped rubber sealing ring, and can bear a pressure of not less than 15.5Mpa and a temperature of not less than 360 ℃.
10. The pressure tapping structure for pipes according to any one of claims 1 to 9, wherein the outer diameter of the pipe is 3-6 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122573123.2U CN216309311U (en) | 2021-10-25 | 2021-10-25 | Pipeline pressure taking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122573123.2U CN216309311U (en) | 2021-10-25 | 2021-10-25 | Pipeline pressure taking structure |
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| Publication Number | Publication Date |
|---|---|
| CN216309311U true CN216309311U (en) | 2022-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122573123.2U Active CN216309311U (en) | 2021-10-25 | 2021-10-25 | Pipeline pressure taking structure |
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| CN (1) | CN216309311U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115655368A (en) * | 2022-10-31 | 2023-01-31 | 中国核动力研究设计院 | Insulation sealing measurement sampling device penetrating through electrified pressure-bearing structure |
-
2021
- 2021-10-25 CN CN202122573123.2U patent/CN216309311U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115655368A (en) * | 2022-10-31 | 2023-01-31 | 中国核动力研究设计院 | Insulation sealing measurement sampling device penetrating through electrified pressure-bearing structure |
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