CN213957424U - Fluid detection device in pipeline - Google Patents
Fluid detection device in pipeline Download PDFInfo
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- CN213957424U CN213957424U CN202120307555.6U CN202120307555U CN213957424U CN 213957424 U CN213957424 U CN 213957424U CN 202120307555 U CN202120307555 U CN 202120307555U CN 213957424 U CN213957424 U CN 213957424U
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- impeller
- pipeline
- detection device
- measuring rod
- fluid
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Abstract
The utility model discloses a fluid detection device in pipeline for the realization detects the velocity of flow of liquid in the pipeline, its characterized in that, it includes measuring staff, impeller, wherein: an anti-winding detection cavity with an open end is formed at the first end of the measuring rod, and an avoidance notch is formed in the side wall of the first side of the detection cavity; the impeller is arranged in the anti-winding detection cavity, and the impeller part extends out of the anti-winding detection cavity. The utility model provides a fluid detection device in pipeline, the main part setting of impeller is in antiwind detection intracavity, and does not expose in the liquid completely. Use the utility model discloses a fluid flow velocity detection is implemented to fluid detection device in the pipeline, and solid impurity in the fluid is difficult to get into the antiwind and detects the chamber to antiwind protection to the impeller has been realized.
Description
Technical Field
The utility model relates to a fluid detection device especially relates to a fluid detection device in pipeline.
Background
In industrial production, the flow rate of fluid in a pipeline often needs to be detected, and at present, a flow rate detection device is generally adopted to detect the flow rate of fluid in the pipeline. An impeller type flow velocity detection device is a commonly used flow velocity detection device, and generally comprises an impeller and an impeller rotation sensing element. Impeller installation is in the impeller pivot, and the impeller is rotatory under fluidic impact, drags the pivot simultaneously and rotates, installs impeller rotation response piece respectively on pivot and commentaries on classics cover: the magnet rotates along with the rotating shaft, and the magnetic sensor generates an induction signal every time the magnet is close to the magnetic sensor, and transmits the induction signal to the signal processing circuit. The signal processing circuit processes the induction signal to obtain the rotating speed of the impeller, and finally the flow speed of the fluid is calculated based on the rotating speed of the impeller.
The existing impeller type flow velocity detection device has the defects that the impeller is completely exposed in the fluid, and solid impurities, particularly flocculent and filiform impurities in the fluid are easy to wind the impeller (particularly enter the connecting part of the impeller and the impeller shaft), so that the normal rotation of the impeller is prevented, and the detection precision of the detection device is finally reduced.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem of impeller type velocity of flow detection device among the prior art, the utility model provides a fluid detection device in pipeline, its technical scheme as follows:
the utility model provides a fluid detection device in pipeline for realize detecting the velocity of flow of liquid in the pipeline, it includes measuring staff, impeller, wherein:
an anti-winding detection cavity with an open end is formed at the first end of the measuring rod, and an avoidance notch is formed in the side wall of the first side of the detection cavity;
the impeller set up in antiwind detects the intracavity, the blade tip of impeller outwards stretches out antiwind detects the chamber.
The utility model provides a fluid detection device in pipeline, the main part setting of impeller is in antiwind detection intracavity, and does not expose in the liquid completely. Use the utility model discloses a fluid detection device carries out the fluid velocity of flow and detects in the pipeline, and solid impurity in the fluid is difficult to get into the antiwind and detects the chamber to antiwind protection to the impeller has been realized.
In some embodiments, the outer wall of the measuring rod is provided with at least one circle of sealing ring installation groove, and a sealing ring is installed in the sealing ring installation groove.
Through the outer wall mounting sealing washer at the measuring staff, after the measuring staff inserted the pipeline through the inspection hole on the pipe wall of pipeline, formed ring seal between measuring staff and the inspection hole, prevented the fluid leakage in the pipeline.
In some embodiments, the outer wall of the measuring rod is provided with two circles of the sealing ring mounting grooves, and the distance between the two circles of the sealing ring mounting grooves is smaller than the thickness of the pipe wall of the pipeline.
Through installing twice sealing washer at the outer wall of measuring staff, after the measuring staff inserted the pipeline through the inspection hole on the pipe wall of pipeline, formed twice ring packing between measuring staff and the inspection hole, further promoted the leakproofness between measuring staff and the inspection hole.
In some embodiments, the impeller is connected to the anti-wind detection chamber by an impeller shaft, and the extension direction of the impeller shaft is perpendicular to the extension direction of the measuring rod.
The impeller shaft is arranged, so that the impeller is rotatably mounted.
In some embodiments, the outer wall of the measuring rod is further provided with an annular limiting ring which protrudes outwards from the outer wall of the measuring rod.
The measuring rod is prevented from being excessively inserted into the pipeline through the limiting ring on the outer wall of the measuring rod.
In some embodiments, it further comprises a rotating inductive component comprising a magnet and a magneto-sensitive device, wherein the magnet is attached to the impeller shaft and the magneto-sensitive device is disposed on an inner wall of the anti-wind detection chamber.
A specific rotation-sensitive assembly mechanism is provided that enables detection of rotation of an impeller.
In some embodiments, a mounting cavity isolated from the anti-winding detection cavity is formed in the measuring rod, a signal processing circuit is arranged in the mounting cavity, and the signal processing circuit is electrically connected with the magnetic sensor.
Through set up the installation cavity in the measuring staff to with signal processing circuit integration in the installation cavity, can make the utility model discloses a structure is compacter, and the performance is more will be stable.
In some embodiments, a terminal box is connected to the second end of the measuring rod, and the terminal box is electrically connected with the signal processing circuit board.
Through setting up the terminal box, can with the utility model discloses be connected with rear end equipment such as display device.
Drawings
Fig. 1 is a schematic structural view of a fluid detection device in a pipeline according to the present invention at a viewing angle after a seal ring is omitted;
fig. 2 is a schematic structural view of the fluid detection device in a pipeline at another viewing angle after the sealing ring is omitted;
fig. 3 is a schematic structural view of the fluid detection device in a pipeline according to the present invention at a viewing angle;
fig. 4 is a schematic structural diagram of an impeller according to the present invention;
fig. 5 is an assembly view of the fluid detection device in a pipeline according to the present invention;
fig. 1 to 5 include: the anti-winding detection device comprises a measuring rod 1, an impeller 2, an impeller shaft 3, a sealing ring 4, a junction box 5, an anti-winding detection cavity 11, an avoidance notch 12, a sealing ring installation groove 13, a limiting ring 14, a central installation part 31, blades 32 and an installation hole 33.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
In the impeller type flow velocity detection device in the prior art, the impeller is completely exposed in the fluid, and solid impurities, particularly flocculent and filamentous impurities in the fluid are easy to wind the impeller, so that the normal rotation of the impeller is hindered, and the detection precision of the detection device is finally reduced.
In view of this, the utility model provides a fluid detection device in pipeline, as shown in fig. 1 to 3, this fluid detection device in pipeline includes measuring staff 1, impeller 2 at least, wherein:
the first end of measuring staff 1 is formed with the open antiwind detection chamber of tip 11, and the antiwind is equipped with dodges breach 12 on the first side lateral wall that detects chamber 11.
As shown in fig. 5, the utility model discloses application method and theory of operation as follows:
the first end of the measuring rod 1 is aligned to the detection hole on the pipe wall of the pipeline 100 to be detected, and then the measuring rod 1 is inserted into the detection hole inwards, so that the anti-winding detection cavity 11 at the first end of the measuring rod 1 completely enters the pipeline.
The angle of the measuring rod 1 is adjusted so that, when there is liquid in the pipe 100 and the liquid is in a flowing state, the flowing direction of the liquid is: from the second side of the anti-wind detection chamber 11 (the side where point a is located in the figure 5) towards the first side of the anti-wind detection chamber 11 (the side where point B is located in the figure).
With continued reference to fig. 5, when the liquid in the pipe 100 flows (as indicated by the straight line arrows in the figure), the flowing liquid pushes the blades of the impeller 2 extending out of the anti-wind detection chamber 11, so as to drive the impeller 2 to rotate (as indicated by the arc arrows in the figure). In the process, due to the blocking of the second side wall of the anti-winding detection cavity 11, solid impurities cannot easily enter the anti-winding detection cavity 11, so that the anti-winding protection is formed on the impeller 2.
In addition, because the first side wall of the anti-winding detection cavity 11 is provided with the avoidance notch 12, the avoidance notch 12 enables the liquid entering the anti-winding detection cavity 11 along with the rotation of the impeller to smoothly flow through the anti-winding detection cavity 11, and ensures that the impeller 2 can smoothly rotate.
Optionally, a sealing ring mounting groove 13 is formed in the outer wall of the measuring rod 1, and a sealing ring 4 is mounted in the sealing ring mounting groove 13. After the measuring rod 1 is inserted into the detection hole on the pipeline 100, the sealing ring 4 is expanded between the measuring rod 1 and the detection hole, so that an annular seal is formed between the measuring rod 1 and the detection hole, and liquid in the pipeline is prevented from leaking.
Optionally, as shown in fig. 3 and 5, two sealing ring installation grooves 13 are formed in the outer wall of the measuring rod 1, the sealing rings 4 are installed in the two sealing ring installation grooves 13, and the distance between the two sealing ring installation grooves 13 is smaller than the thickness of the pipe wall of the pipe 100. As shown in fig. 5, after the measuring rod 1 is inserted into the pipeline 100, two annular seals are formed between the measuring rod 1 and the detection hole on the pipeline 100, so that the sealing degree between the measuring rod 1 and the detection hole is further improved.
Optionally, the outer wall of the measuring rod 1 is further provided with an annular limiting ring 14 protruding outwards from the outer wall of the measuring rod 1.
Optionally, the fluid detection device in the pipeline of the present invention further includes a rotational sensitivity component (not shown), the rotational sensitivity component is used for detecting the rotational speed of the impeller 2, as is well known to those skilled in the art, the rotational speed of the impeller 2 is related to the flow rate of the liquid in the pipeline, and the flow rate of the liquid can be obtained based on the rotational speed of the impeller 2.
The utility model discloses in, can select to adopt various known rotation perceptual subassemblies to realize detecting the rotational speed of impeller 2. For example, in some embodiments, the rotating inductive component includes a magnet attached to the impeller shaft or impeller and a magneto-sensitive device disposed on an inner wall of the anti-wind detection chamber. The magnet rotates along with the impeller shaft or the impeller, and the magnetic sensor generates an induction signal every time the magnet is close to the magnetic sensor. The induction signal generated by the magnetic sensor is processed by the signal processing circuit, and then the rotating speed signal of the impeller can be obtained.
In order to integrate signal processing circuit extremely the utility model discloses in, it is optional, be formed with in the measuring staff 1 and detect the isolated installation cavity in chamber with antiwind, signal processing circuit sets up and is connected in the installation cavity and with the magnetic sensor electricity. Because the installation cavity and the antiwind detection cavity are isolated from each other, liquid cannot flow into the installation cavity, and therefore waterproof protection of the signal processing circuit is achieved.
Optionally, the second end of the measuring rod 1 is connected with a junction box 4, and the junction box 4 is electrically connected with the signal processing circuit. Can will through the terminal box the utility model discloses be connected with rear end equipment such as display device to the realization is to the control of liquid flow velocity.
The invention has been described above with a certain degree of particularity and detail. It will be understood by those of ordinary skill in the art that the description of the embodiments is merely exemplary and that all changes that may be made without departing from the true spirit and scope of the present invention are intended to be within the scope of the present invention. The scope of the invention is defined by the appended claims rather than by the foregoing description of the embodiments.
Claims (8)
1. The utility model provides a fluid detection device in pipeline for the realization detects the velocity of flow of liquid in the pipeline, its characterized in that, it includes measuring staff, impeller, wherein:
an anti-winding detection cavity with an open end is formed at the first end of the measuring rod, and an avoidance notch is formed in the side wall of the first side of the detection cavity;
the impeller set up in antiwind detects the intracavity, the blade of impeller outwards stretches out antiwind detects the chamber.
2. The fluid detection device as claimed in claim 1, wherein the outer wall of the measuring rod is provided with at least one circle of sealing ring installation grooves, and sealing rings are installed in the sealing ring installation grooves.
3. The fluid detection device in the pipeline as claimed in claim 2, wherein the outer wall of the measuring rod is provided with two circles of the sealing ring installation grooves, and the distance between the two circles of the sealing ring installation grooves is smaller than the thickness of the pipe wall of the pipeline.
4. The fluid detection device of claim 1, wherein the impeller is coupled within the anti-wind detection chamber by an impeller shaft, the impeller shaft extending perpendicular to the extension of the spindle.
5. The fluid detection device as claimed in claim 1, wherein the outer wall of the measuring rod is further provided with an annular stop collar protruding outwards from the outer wall of the measuring rod.
6. The fluid detection device according to claim 4, further comprising a rotating inductive component comprising a magnet and a magneto-sensitive device, wherein said magnet is attached to said impeller shaft and said magneto-sensitive device is disposed on an inner wall of said anti-wind detection chamber.
7. The fluid detection device in a pipeline according to claim 6, wherein a mounting cavity isolated from the anti-winding detection cavity is formed in the measuring rod, a signal processing circuit is arranged in the mounting cavity, and the signal processing circuit is electrically connected with the magnetic sensor.
8. The fluid detection device as recited in claim 7, wherein a junction box is connected to the second end of the measuring rod, the junction box being electrically connected to the signal processing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120307555.6U CN213957424U (en) | 2021-02-03 | 2021-02-03 | Fluid detection device in pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120307555.6U CN213957424U (en) | 2021-02-03 | 2021-02-03 | Fluid detection device in pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213957424U true CN213957424U (en) | 2021-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120307555.6U Expired - Fee Related CN213957424U (en) | 2021-02-03 | 2021-02-03 | Fluid detection device in pipeline |
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| Country | Link |
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| CN (1) | CN213957424U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738918A (en) * | 2021-11-08 | 2021-12-03 | 艾肯（江苏）工业技术有限公司 | Pressure reducing valve with accurate pressure limiting setting function |
-
2021
- 2021-02-03 CN CN202120307555.6U patent/CN213957424U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738918A (en) * | 2021-11-08 | 2021-12-03 | 艾肯（江苏）工业技术有限公司 | Pressure reducing valve with accurate pressure limiting setting function |
| CN113738918B (en) * | 2021-11-08 | 2022-02-08 | 艾肯（江苏）工业技术有限公司 | Pressure reducing valve with accurate pressure limiting setting function |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210813 Termination date: 20220203 |
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| CF01 | Termination of patent right due to non-payment of annual fee |