CN215217701U - Balance preset pressure-taking porous sensor - Google Patents
Balance preset pressure-taking porous sensor Download PDFInfo
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- CN215217701U CN215217701U CN202120650857.3U CN202120650857U CN215217701U CN 215217701 U CN215217701 U CN 215217701U CN 202120650857 U CN202120650857 U CN 202120650857U CN 215217701 U CN215217701 U CN 215217701U
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Abstract
The utility model is suitable for the measurement related field, and provides a balance preset pressure tapping porous sensor, which comprises a main pipe, a pressure difference plate arranged in the main pipe, a high-pressure tapping component and a low-pressure tapping component; one end of the channel communicated with the main pipe is arranged at the intersection of the pressure difference plate and the main pipe; the pressure difference plate is provided with a plurality of pressure difference holes. Because the channel connector who is responsible for and high pressure components and low pressure components and the laminating of differential pressure board, through the high pressure components and the low pressure components of getting who sets up, with the stable transmission of the high low pressure of differential pressure board both sides for pressure differential receiving equipment, with vibrations and the vortex that the fluid produced to pressure differential measurement's influence minimum for pressure differential measurement's accuracy improves, and then obtains comparatively accurate flow value.
Description
Technical Field
The utility model belongs to measure relevant field, especially, relate to a balanced preset pressure porous sensor that gets.
Background
The flow measurement is to measure the flow of fluid in a pipeline or an open channel, and a common flow meter is a flow meter and is widely applied to various fields of industrial and agricultural production, national defense construction, scientific research, foreign trade and people's life.
Flow sensors are commonly used in flow meters, and the sensors are of various types, wherein the porous sensor is a differential pressure type flow sensor, that is, a flow value is indirectly measured by measuring differential pressure by using the relationship between the differential pressure and the flow.
When the existing porous sensor is used, the cross sectional area of fluid is suddenly changed when the fluid enters the balance plate and flows out of the balance plate, so that vibration and vortex flow occur on two sides of the balance plate, the fluency and stability of the fluid are reduced, and the accuracy of differential pressure measurement is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide a balanced preset pressure porous sensor that gets aims at solving the balance plate both sides vibrations and vortex, and fluidic smoothness nature and stability descend, cause the problem that differential pressure measurement accuracy descends.
The embodiment of the utility model provides a realize like this, a balanced preset pressure tapping porous sensor, including being responsible for and setting up the pressure differential board in the main pipe, the sensor still includes:
the high-pressure taking assembly is arranged on the main pipe, is communicated with the main pipe through a channel which is arranged in the main pipe and is positioned on the high-pressure side of the pressure difference plate, and is used for transmitting the pressure on the high-pressure side of the pressure difference plate to the pressure difference receiving equipment;
the low-pressure taking assembly is arranged on the main pipe, is communicated with the main pipe through a channel which is arranged in the main pipe and is positioned on the low-pressure side of the pressure difference plate, and is used for transmitting the pressure on the low-pressure side of the pressure difference plate to the pressure difference receiving equipment;
one end of the channel communicated with the main pipe is arranged at the intersection of the pressure difference plate and the main pipe; the pressure difference plate is provided with a plurality of pressure difference holes.
Preferably, the high-pressure tapping assembly comprises:
the high-pressure tapping branch pipes are arranged on the main pipe and are communicated with the channel at the high-pressure side, and the number of the high-pressure tapping branch pipes is at least two;
the high-pressure taking manifold is arranged on the high-pressure taking branch pipes, is connected with the high-pressure taking branch pipes and is used for converging the fluid in the high-pressure taking branch pipes;
and the high-pressure transmission pipe is arranged on the high-pressure taking manifold, is communicated with the high-pressure taking manifold, and is used for transmitting the fluid converged from the high-pressure side to the differential pressure receiving equipment.
Preferably, the low pressure tapping assembly comprises:
the low-pressure taking branch pipes are arranged on the main pipe and are communicated with the channel at the low-pressure side, and the number of the low-pressure taking branch pipes is at least two;
the low-pressure taking manifold is arranged on the low-pressure taking branch pipes, connected with the low-pressure taking branch pipes and used for converging the fluid in the low-pressure taking branch pipes;
and the low-pressure transmission pipe is arranged on the low-pressure taking manifold, is communicated with the low-pressure taking manifold, and is used for transmitting the fluid converged from the low-pressure side to the differential pressure receiving equipment.
Preferably, a middle differential pressure hole is formed in the middle of the differential pressure plate, and a plurality of peripheral differential pressure holes are uniformly distributed in the circumferential direction outside the middle differential pressure hole.
Preferably, the high-pressure tapping branch pipe is positioned on an angle bisector of two adjacent peripheral pressure difference holes.
Preferably, the low-pressure tapping branch pipe is positioned on an angle bisector of two adjacent peripheral pressure difference holes.
Preferably, the cross-sectional area of the intermediate pressure difference hole is the same as the cross-sectional area of the plurality of peripheral pressure difference holes.
The embodiment of the utility model provides a pair of balanced preset pressure tapping porous sensor, because be responsible for and high pressure tapping subassembly and low pressure tapping subassembly's channel connector and pressure differential board laminating, high pressure tapping subassembly and low pressure tapping subassembly through setting up, with the stable transmission of the high low pressure of pressure differential board both sides for pressure differential receiving equipment, the vibrations and the vortex that produce the fluid fall to minimumly to pressure differential measurement's influence for pressure differential measurement's accuracy improves, and then obtains comparatively accurate flow value.
Drawings
Fig. 1 is a left side view of a balanced preset pressure measurement porous sensor provided in an embodiment of the present invention;
fig. 2 is a cross-sectional view taken at a-a in fig. 1.
In the drawings: 1. a main pipe; 2. a low-pressure taking branch pipe; 3. a low pressure take-off manifold; 4. a low pressure delivery pipe; 5. a high pressure delivery pipe; 6. a high pressure take-off manifold; 7. and a high-pressure taking branch pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following detailed description is provided for the specific embodiments of the present invention.
As shown in fig. 1 and fig. 2, a structure diagram of a balanced preset pressure-taking porous sensor provided for an embodiment includes a main pipe 1 and a pressure difference plate disposed in the main pipe, and the sensor further includes:
the high-pressure tapping component is arranged on the main pipe 1, is communicated with the main pipe 1 through a channel which is arranged in the main pipe 1 and is positioned on the high-pressure side of the pressure difference plate, and is used for transmitting the pressure on the high-pressure side of the pressure difference plate to the pressure difference receiving equipment;
the low-pressure taking assembly is arranged on the main pipe 1, is communicated with the main pipe 1 through a channel which is arranged in the main pipe 1 and is positioned at the low-pressure side of the pressure difference plate, and is used for transmitting the pressure at the low-pressure side of the pressure difference plate to the pressure difference receiving equipment;
one end of the channel communicated with the main pipe 1 is arranged at the intersection of the pressure difference plate and the main pipe 1; the pressure difference plate is provided with a plurality of pressure difference holes.
In one aspect of this embodiment, when the fluid reaches the differential pressure hole on the differential pressure plate, the channel becomes suddenly smaller, and the water flow generates vortex and impact, and the vibration fluctuation of the position at the edge of the differential pressure plate and attached to the differential pressure plate is minimum; when water flow passes through the pressure difference holes in the pressure difference plate, the channel is suddenly enlarged, the water flow is scattered, and the eddy current fluctuation at the edge of the pressure difference plate and the position attached to the pressure difference plate is minimum; because the main pipe 1 is laminated with the channel connector of the high-pressure taking component and the low-pressure taking component and the pressure difference plate, the high-pressure taking component and the low-pressure taking component are arranged, the high pressure and the low pressure on two sides of the pressure difference plate are stably transmitted to the pressure difference receiving equipment, the influence of the vibration and the vortex generated by the fluid on the pressure difference measurement is reduced to the minimum, the accuracy of the pressure difference measurement is improved, and the accurate flow value is obtained.
In a case of the present embodiment, the trend and the cross-sectional shape of the main pipe 1 may be set according to the actual use situation, and even the cross-sectional shapes of the main pipes 1 on both sides of the pressure difference plate may be different, and the shape of the main pipe 1 in fig. 1 and fig. 2 is only an example, and the shape of the main pipe 1 is not particularly limited in the present embodiment.
The main working principle of the sensor is as follows: when fluid passes through the pressure difference plate in the main pipe 1, the flow area is reduced, the flow speed is accelerated, the static pressure is reduced, and a pressure difference, namely, a pressure difference is generated in front of and behind the pressure difference plate. Flow measurement can be achieved by measuring the differential pressure in terms of bernoulli's equation and flow continuity equation, which is in an open-square relationship with flow.
As shown in fig. 1 and 2, in one embodiment, the high pressure tapping assembly comprises:
the high-pressure taking branch pipes 7 are arranged on the main pipe 1 and are communicated with a channel on a high-pressure side, and the number of the high-pressure taking branch pipes 7 is at least two;
the high-pressure taking manifold 6 is arranged on the high-pressure taking branch pipes 7, is connected with the high-pressure taking branch pipes 7, and is used for converging the fluid in the high-pressure taking branch pipes 7;
and the high-pressure transmission pipe 5 is arranged on the high-pressure taking manifold 6, is communicated with the high-pressure taking manifold 6, and is used for transmitting the fluid converged from the high-pressure side to the differential pressure receiving equipment.
In one case of this embodiment, as shown in fig. 1, the number of the high-pressure branch pipes 7 is 6, the high-pressure side 6 branch pipes are communicated with each other through a high-pressure collecting pipe 6, and finally the high-pressure collecting pipe 6 transmits the pressure to the differential pressure receiving equipment through a high-pressure transmission pipe 5. Carry out the drainage through many high pressure taking branch pipes 7 in the multiple position of being responsible for 1 and get the pressure, the error greatly reduced who gets the pressure with the single point to flow back the fluid after getting the pressure of multiple point to the high pressure and get in the pressure manifold 6, further carry out the pressure-sharing to the fluid of getting the pressure of multiple point, make finally transmit the pressure that gives differential pressure receiving equipment from high pressure transmission pipe 5 for the minimum pressure of error, guaranteed that differential pressure receiving equipment receives stable accurate high pressure value.
It should be noted that, when a plurality of high-pressure taking branch pipes 7 are installed, in order to ensure uniformity of pressure taking, the plurality of high-pressure taking branch pipes 7 are preferably arranged uniformly, for example, as shown in fig. 1, and of course, in actual use, if the plurality of high-pressure taking branch pipes 7 are not arranged uniformly, a better effect can be obtained, and a non-uniform form may also be selected to install the plurality of high-pressure taking branch pipes 7.
As shown in fig. 2, as another preferred embodiment of the present invention, the low pressure tapping assembly includes:
the low-pressure taking branch pipes 2 are arranged on the main pipe 1 and are communicated with a channel on a low-pressure side, and the number of the low-pressure taking branch pipes 2 is at least two;
the low-pressure taking manifold 3 is arranged on the low-pressure taking branch pipes 2, is connected with the low-pressure taking branch pipes 2, and is used for converging the fluid in the low-pressure taking branch pipes 2;
and the low-pressure transmission pipe 4 is arranged on the low-pressure taking manifold 3, is communicated with the low-pressure taking manifold 3, and is used for transmitting the fluid converged from the low-pressure side to the differential pressure receiving equipment.
In one case of the present embodiment, as shown in fig. 1 and fig. 2, the total number of the low-pressure taking branch pipes 2 is 6, the 6 low-pressure side pressure taking branch pipes are communicated together through a low-pressure taking header 3, and finally the low-pressure taking header 3 transmits the pressure to the differential pressure receiving equipment through a low-pressure transmission pipe 4. Carry out the drainage through many low pressure taking branch pipes 2 in a plurality of positions of being responsible for 1 and get the pressure, the error greatly reduced who gets the pressure with the single point to flow back the fluid after getting the pressure with the multiple point to the low pressure and get in the pressure manifold 3, further carry out the pressure-sharing to the fluid of getting the pressure with the multiple point, make finally transmit the pressure that gives pressure differential receiving equipment from low pressure transmission pipe 4 for the minimum pressure of error, guaranteed that pressure differential receiving equipment receives stable accurate low pressure value.
It should be noted that, when a plurality of low-pressure taking branch pipes 2 are installed, in order to ensure uniformity of pressure taking, the plurality of low-pressure taking branch pipes 2 are preferably arranged uniformly, for example, as shown in fig. 1, and of course, in actual use, if the plurality of low-pressure taking branch pipes 2 are not arranged uniformly, a better effect can be obtained, and a non-uniform form may also be selected to install the plurality of low-pressure taking branch pipes 2.
In addition, the high-pressure measuring component and the low-pressure measuring component are symmetrically arranged on two sides of the pressure difference plate, and pressure measuring errors are reduced from the installation positions, as shown in fig. 2, except for symmetrical arrangement, when the front and back of the cross-sectional shape of the main pipe 1 are not consistent, the positions of the two pressure measuring components can also be asymmetrically arranged, and no specific limitation is made here, and the arrangement is carried out according to the actual use condition.
In one embodiment, as shown in fig. 2, a middle pressure difference hole is formed in the middle of the pressure difference plate, and a plurality of peripheral pressure difference holes are uniformly distributed in the circumferential direction outside the middle pressure difference hole. The cross-sectional area of the intermediate differential pressure hole is the same as that of the plurality of peripheral differential pressure holes.
In one case of this embodiment, taking fig. 1 as an example, seven pressure difference holes are equally distributed in area on the pressure difference plate in the main pipe 1, one middle pressure difference hole is arranged in the center, six peripheral pressure difference holes are arranged in an array by taking the middle pressure difference hole as a reference, and eddy currents and vibration parts formed around the pressure difference holes are mutually offset, so that a good rectification effect is achieved.
In one embodiment, as shown in fig. 2, the high-pressure tapping branch pipe is positioned on an angle bisector of two adjacent peripheral pressure difference holes. The low-pressure-taking branch pipe is positioned on an angular bisector of two adjacent peripheral pressure difference holes.
In one case of this embodiment, taking fig. 1 as an example, in order to implement uniform pressure tapping, on the circumferential surface of the main pipe of the sensor, a position of an angular bisector of two adjacent peripheral pressure difference holes is selected, because this position is a position where eddy currents and vibrations of the two adjacent peripheral pressure difference holes are minimum, and six pairs (including high and low pressure sides) of pressure tapping ports are opened at this position, and then six pressure tapping branch pipes are used to homogenize the pressure of the six pressure tapping branch pipes by using one pressure tapping header pipe, and then sent to the differential pressure receiving equipment through the transmission pipe, so that the obtained differential pressure signal is more stable, a smaller differential pressure signal is more easily measured, and the measurement range of the sensor is greatly expanded.
It should be further noted that the present embodiment is an exemplary description in the case where the cross-sectional shapes and areas of the peripheral pressure difference hole and the intermediate pressure difference hole are the same, and it is to be noted that the pressure taking port is preferably provided at a position where the eddy current and the vibration are minimum or small.
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.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides a balanced preset porous sensor of getting pressure which characterized in that, is responsible for and sets up the pressure differential board in the main pipe, the sensor still includes:
the high-pressure taking assembly is arranged on the main pipe, is communicated with the main pipe through a channel which is arranged in the main pipe and is positioned on the high-pressure side of the pressure difference plate, and is used for transmitting the pressure on the high-pressure side of the pressure difference plate to the pressure difference receiving equipment;
the low-pressure taking assembly is arranged on the main pipe, is communicated with the main pipe through a channel which is arranged in the main pipe and is positioned on the low-pressure side of the pressure difference plate, and is used for transmitting the pressure on the low-pressure side of the pressure difference plate to the pressure difference receiving equipment;
one end of the channel communicated with the main pipe is arranged at the intersection of the pressure difference plate and the main pipe; the pressure difference plate is provided with a plurality of pressure difference holes.
2. The balanced preset pressure taking porous sensor according to claim 1, wherein the high pressure taking assembly comprises:
the high-pressure tapping branch pipes are arranged on the main pipe and are communicated with the channel at the high-pressure side, and the number of the high-pressure tapping branch pipes is at least two;
the high-pressure taking manifold is arranged on the high-pressure taking branch pipes, is connected with the high-pressure taking branch pipes and is used for converging the fluid in the high-pressure taking branch pipes;
and the high-pressure transmission pipe is arranged on the high-pressure taking manifold, is communicated with the high-pressure taking manifold, and is used for transmitting the fluid converged from the high-pressure side to the differential pressure receiving equipment.
3. The balanced preset pressure taking porous sensor according to claim 2, wherein the low pressure taking assembly comprises:
the low-pressure taking branch pipes are arranged on the main pipe and are communicated with the channel at the low-pressure side, and the number of the low-pressure taking branch pipes is at least two;
the low-pressure taking manifold is arranged on the low-pressure taking branch pipes, connected with the low-pressure taking branch pipes and used for converging the fluid in the low-pressure taking branch pipes;
and the low-pressure transmission pipe is arranged on the low-pressure taking manifold, is communicated with the low-pressure taking manifold, and is used for transmitting the fluid converged from the low-pressure side to the differential pressure receiving equipment.
4. The balanced preset pressure-taking porous sensor according to claim 3, wherein a middle pressure difference hole is formed in the middle of the pressure difference plate, and a plurality of peripheral pressure difference holes are uniformly distributed in the circumferential direction outside the middle pressure difference hole.
5. The balanced preset pressure tapping porous sensor according to claim 4, wherein the high-pressure tapping branch pipe is positioned on an angle bisector of two adjacent peripheral pressure difference holes.
6. The balanced preset pressure tapping porous sensor according to claim 4, wherein the low pressure tapping branch pipe is positioned on an angle bisector of two adjacent peripheral pressure difference pores.
7. The balanced preset pressure taking porous sensor according to claim 4, wherein the cross-sectional area of the intermediate differential pressure hole is the same as the cross-sectional area of the plurality of peripheral differential pressure holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120650857.3U CN215217701U (en) | 2021-03-31 | 2021-03-31 | Balance preset pressure-taking porous sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120650857.3U CN215217701U (en) | 2021-03-31 | 2021-03-31 | Balance preset pressure-taking porous sensor |
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| Publication Number | Publication Date |
|---|---|
| CN215217701U true CN215217701U (en) | 2021-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120650857.3U Active CN215217701U (en) | 2021-03-31 | 2021-03-31 | Balance preset pressure-taking porous sensor |
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| CN (1) | CN215217701U (en) |
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2021
- 2021-03-31 CN CN202120650857.3U patent/CN215217701U/en active Active
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