CN109723976B - Pipeline blockage position detection device - Google Patents
Pipeline blockage position detection device Download PDFInfo
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- CN109723976B CN109723976B CN201910143187.3A CN201910143187A CN109723976B CN 109723976 B CN109723976 B CN 109723976B CN 201910143187 A CN201910143187 A CN 201910143187A CN 109723976 B CN109723976 B CN 109723976B
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- 238000001514 detection method Methods 0.000 title claims abstract description 31
- 230000003068 static effect Effects 0.000 claims abstract description 86
- 239000012530 fluid Substances 0.000 claims abstract description 52
- 238000009530 blood pressure measurement Methods 0.000 claims abstract description 41
- 230000000712 assembly Effects 0.000 claims abstract description 31
- 238000000429 assembly Methods 0.000 claims abstract description 31
- 230000002706 hydrostatic effect Effects 0.000 claims abstract description 12
- 238000004891 communication Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 abstract description 6
- 230000000903 blocking effect Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
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Abstract
The invention provides a pipeline blockage position detection device, which is arranged on a pipeline and comprises: a total pressure measurement assembly disposed at least partially within the conduit to measure a total pressure of the fluid within the conduit; the static pressure measuring assemblies are arranged on the pipeline at intervals so as to measure the hydrostatic pressure of fluid in different positions in the pipeline; and the detection assembly is connected with the total pressure measurement assembly and the plurality of static pressure measurement assemblies to display the total fluid pressure of the pipeline and the static pressures of different positions. The technical scheme of the invention effectively solves the problems that the powder pipe in the prior art has long conveying distance, the pipeline is longer and the blocked position is difficult to judge, the pipeline has to be cut off to be gradually checked after being blocked frequently, time and labor are wasted, and the safe operation of a unit is influenced.
Description
Technical Field
The invention relates to the technical field of auxiliary pipeline maintenance equipment, in particular to a pipeline blockage position detection device.
Background
The coal pulverizer is the important auxiliary machinery equipment of thermal power factory, and its normal operating concerns the safe and stable operation of whole power factory, nevertheless because the coal pulverizer can lead to the pipeline to block up at the operation in-process, the pipeline blocks up and not only influences unit normal operating, still has the potential safety hazard, needs in time to find the jam position and dredge the pipeline. Because the powder pipe conveying distance is long, the longer blockage position of the pipeline is difficult to judge, and the pipeline has to be cut off to be gradually checked after being frequently blocked, so that the time and the labor are wasted, and the safe operation of a unit is influenced.
Disclosure of Invention
The invention mainly aims to provide a pipeline blockage position detection device, which solves the problems that in the prior art, the powder pipe conveying distance is long, the pipeline is longer and the blockage position is difficult to judge, the pipeline has to be cut to be gradually checked after being blocked frequently, time and labor are wasted, and the safe operation of a unit is influenced.
In order to achieve the above object, the present invention provides a pipe clogging position detecting device, which is installed on a pipe, and includes: a total pressure measurement assembly disposed at least partially within the conduit to measure a total pressure of the fluid within the conduit; the static pressure measuring assemblies are arranged on the pipeline at intervals so as to measure the hydrostatic pressure of fluid in different positions in the pipeline; and the detection assembly is connected with the total pressure measurement assembly and the plurality of static pressure measurement assemblies to display the total fluid pressure of the pipeline and the static pressures of different positions.
Further, the total pressure measurement assembly includes: a pressure measurement tube at least partially disposed within the conduit, the pressure measurement tube having a measurement port facing opposite a flow direction of fluid within the conduit; the first end and the pressure measurement pipe intercommunication of pressure conduction pipe, the second end and the detection subassembly of pressure conduction pipe are connected.
Further, the static pressure measurement assembly includes: the static pressure measuring tube is communicated with the pipeline, a static pressure measuring port is arranged on the static pressure measuring tube, and the direction of the static pressure measuring port is vertical to the flow direction of the fluid; and the first end of the static pressure conduction pipe is communicated with the static pressure measuring pipe, and the second end of the static pressure conduction pipe is connected with the detection component.
Further, the static pressure measuring port is opened on the pipeline or extends into the pipeline through the static pressure measuring tube.
Further, the detection assembly includes: the differential pressure transmitter is connected with the total pressure measuring assembly and the plurality of static pressure measuring assemblies; and the display terminal is connected with the differential pressure transmitter to display the differential pressure between the total fluid pressure and the hydrostatic pressures at different positions or the differential pressure between the two hydrostatic pressures at different positions.
Further, the detection assembly further comprises a plurality of pressure sensors, and the plurality of pressure sensors are respectively connected with the total pressure measurement assembly and the plurality of static pressure measurement assemblies.
Furthermore, the display terminal is set as a programmable logic controller and a computer, and the display terminal is connected with the differential pressure transmitter through a communication lead.
Further, a plurality of static pressure measuring assemblies are arranged at intervals; and the distance between the adjacent static pressure measuring assemblies is integral multiple of the preset length.
Further, the total pressure measurement assembly and the static pressure measurement assembly are arranged in a pitot tube structure.
Further, the detection device also comprises at least one temperature sensor, the temperature sensor is connected with the pipeline, and the temperature sensor is arranged on the pipeline at intervals in a plurality of time phases so as to measure the temperature of different positions of the pipeline.
By applying the technical scheme of the invention, the total pressure measuring assemblies are used for measuring the total pressure of the fluid in the pipeline, the static pressure measuring assemblies are used for measuring the static pressures of the fluid in different positions in the pipeline, the total pressure of the fluid and the static pressures of the fluid in different positions can be displayed by matching the detecting assemblies, and thus the blocking position of the pipeline can be quickly judged by checking the change of the total pressure of the fluid and the static pressures of the fluid. Specifically, whether the difference value between the total fluid pressure and the static fluid pressure changes to a large extent or not can be determined, then the position of a measuring point where the static fluid pressure changes for the first time is determined, and the approximate blocking position of the pipeline is judged, so that the detection is set from the measuring point, the checking time of the blocking position is greatly saved, manpower and material resources are saved, and the safe operation of the unit is ensured. The technical scheme of the invention effectively solves the problems that the powder pipe in the prior art has long conveying distance, the pipeline is longer and the blocked position is difficult to judge, the pipeline has to be cut off to be gradually checked after being blocked frequently, time and labor are wasted, and the safe operation of a unit is influenced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic configuration of a pipe clogging position detecting apparatus according to the present invention.
Wherein the figures include the following reference numerals:
10. a pipeline; 20. a total pressure measurement assembly; 30. a static pressure measurement assembly; 40. and a detection component.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, the thicknesses of layers and regions are exaggerated for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.
As shown in FIG. 1, the pipeline blockage position detection device in the first embodiment is installed on a pipeline 10 and comprises a total pressure measurement assembly 20, a plurality of static pressure measurement assemblies 30 and a detection assembly 40. Total pressure measurement assembly 20 is at least partially disposed within conduit 10 to measure the total pressure of the fluid within conduit 10. The static pressure measuring assembly 30 is arranged on the pipeline 10, and a plurality of static pressure measuring assemblies 30 are arranged on the pipeline 10 at intervals so as to measure the hydrostatic pressure of fluid in different positions in the pipeline 10. Sensing assembly 40 is coupled to total pressure measurement assembly 20 and plurality of static pressure measurement assemblies 30 to display the total fluid pressure and the static pressures at various locations of pipe 10.
By applying the technical solution of the first embodiment, the total pressure measuring assembly 20 is used to measure the total pressure of the fluid in the pipeline 10, the static pressure measuring assemblies 30 are used to measure the static pressures of the fluid in the pipeline 10 at different positions, and the total pressure of the fluid and the static pressures at different positions can be displayed by matching the detecting assemblies 40, so that the blockage position of the pipeline 10 can be quickly determined by looking up the changes of the total pressure of the fluid and the static pressures of the fluid. Specifically, whether the difference between the total fluid pressure and the static fluid pressure changes to a large extent or not can be determined, and then the position of a measuring point where the static fluid pressure changes for the first time is determined to judge the approximate blocking position of the pipeline 10, so that the detection is carried out from the measuring point, the checking time of the blocking position is greatly saved, manpower and material resources are saved, and the safe operation of the unit is ensured. The technical scheme of the first embodiment effectively solves the problems that in the prior art, the powder pipe conveying distance is long, the pipeline is long, the blocking position is difficult to judge, the pipeline 10 has to be cut off to be gradually checked after being blocked frequently, time and labor are wasted, and the safe operation of a unit is influenced.
As shown in fig. 1, in the first embodiment, the total pressure measurement assembly 20 includes a pressure measurement pipe and a pressure conduction pipe. A pressure measuring tube is arranged at least partly inside the pipe 10, the pressure measuring tube having a measuring opening facing in a direction opposite to the flow direction of the fluid inside the pipe 10. The first end of the pressure conduction pipe is communicated with the pressure measurement pipe, and the second end of the pressure conduction pipe is connected with the detection component 40. The above structure allows to measure the total pressure of the fluid inside the duct 10. Specifically by docking towards a measurement port opposite to the direction of fluid flow in the pipeline 10 and then conducting the total pressure of the fluid through a pressure conducting tube to an external sensing assembly 40. Further, the pressure measuring tube is a rigid pipe to avoid errors caused by deformation due to fluid scouring.
As shown in fig. 1, in the solution of the first embodiment, the static pressure measuring assembly 30 includes a static pressure measuring tube and a static pressure conducting tube. The static pressure measuring tube is communicated with the pipeline 10, and a static pressure measuring port is arranged on the static pressure measuring tube, and the orientation of the static pressure measuring port is vertical to the flow direction of the fluid. The first end of the static pressure conduction pipe is communicated with the static pressure measuring pipe, and the second end of the static pressure conduction pipe is connected with the detection assembly 40.
As shown in fig. 1, in the solution of the first embodiment, the static pressure port is opened on the pipeline 10 or extends into the pipeline 10 through the static pressure measuring tube. Both of the above-described ways can make a measurement of the hydrostatic pressure of the pipe 10.
As shown in fig. 1, in the solution of the first embodiment, the detection assembly 40 includes a differential pressure transmitter and a display terminal. The differential pressure transmitter is coupled to total pressure measurement assembly 20 and a plurality of static pressure measurement assemblies 30. The display terminal is connected with the differential pressure transmitter to display the differential pressure between the total pressure of the fluid and the hydrostatic pressure at different positions or the differential pressure between the two hydrostatic pressures at different positions. The structure can visually display the measured total fluid pressure and the hydrostatic pressure at different positions. Further, the detection assembly 40 also includes a logic control system disposed inside the display terminal to display the difference between different values. Each value has a corresponding total fluid pressure and a number of hydrostatic pressures at different locations to distinguish the locations of different pressures.
As shown in fig. 1, in the solution of the first embodiment, the detecting assembly 40 further includes a plurality of pressure sensors, and the plurality of pressure sensors are respectively connected to the total pressure measuring assembly 20 and the plurality of static pressure measuring assemblies 30. The structure can quickly measure the pressure values corresponding to the total pressure measuring assembly 20 and the plurality of static pressure measuring assemblies 30, and the aim of quick response is fulfilled.
As shown in fig. 1, in the technical solution of the first embodiment, the display terminal is configured as a programmable logic controller and a computer, and the display terminal is connected with the differential pressure transmitter through a communication wire. The Programmable Logic Controller is a PLC control system (Programmable Logic Controller), and is an electronic device designed for industrial production and operated by digital operation, and it uses a kind of Programmable memory for storing program therein, executing instructions for Logic operation, sequence control, timing, counting and arithmetic operation, etc. facing to users, and controls various types of machinery or production processes by digital or analog input/output. Is the core part of industrial control.
As shown in fig. 1, in the solution of the first embodiment, a plurality of static pressure measurement assemblies are arranged at intervals. And the distance between the adjacent static pressure measuring assemblies is integral multiple of the preset length. The structure can quickly determine the position of the static pressure measuring component, so that the distance between any two static pressure measuring components can be quickly determined, and the pipeline 10 blockage position detection device can be more accurately and reliably detected.
As shown in fig. 1, in the solution of the first embodiment, the detection device further includes at least one temperature sensor, the temperature sensor is connected to the pipeline 10, and the temperature sensor is arranged on the pipeline 10 at intervals in a plurality of time phases so as to measure the temperature of different positions of the pipeline 10. The above structure is added as necessary to detect the temperature of each position of the pipe 10. The blockage position can be further quickly and accurately determined through the addition of the temperature parameter. The main principle is that the flow rate in the pipeline 10 changes due to blockage, and then the friction with the pipe wall changes, so that the approximate blocked position is judged through certain temperature change and comparison of a plurality of positions, and the judgment of the blocked position can be more accurate and reliable by combining the measurement of the total pressure measurement assembly 20 and the static pressure measurement assemblies 30.
The device for detecting the blockage position of the pipeline 10 in the second embodiment is different from the device in the first embodiment in that:
in the second embodiment, the total pressure measuring assembly 20 and the static pressure measuring assembly 30 are arranged in a pitot tube structure. The above structure is that the existing pitot tube is connected to the pipe 10, and then the pressure difference at the corresponding position is detected. The pitot tubes may be arranged in multiple sets at different locations.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects: the total pressure measuring assembly 20 is used for measuring the total pressure of the fluid in the pipeline 10, the static pressure measuring assemblies 30 are used for measuring the static pressures of the fluid in different positions in the pipeline 10, the total pressure of the fluid and the static pressures of the different positions can be displayed through the matching of the detecting assembly 40, and therefore the blocking position of the pipeline 10 can be rapidly judged through checking the change of the total pressure of the fluid and the static pressures of the fluid. Specifically, whether the difference between the total fluid pressure and the static fluid pressure changes to a large extent or not can be determined, and then the position of a measuring point where the static fluid pressure changes for the first time is determined to judge the approximate blocking position of the pipeline 10, so that the detection is carried out from the measuring point, the checking time of the blocking position is greatly saved, manpower and material resources are saved, and the safe operation of the unit is ensured. The technical scheme of the invention effectively solves the problems that the powder pipe in the prior art has long conveying distance, the pipeline is longer and the blocking position is difficult to judge, the pipeline 10 has to be cut off to be gradually checked after being blocked frequently, time and labor are wasted, and the safe operation of a unit is influenced.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A pipe blockage position detecting device, characterized in that the detecting device is installed on a pipe (10), comprising:
a total pressure measurement assembly (20), the total pressure measurement assembly (20) being at least partially disposed within the pipe (10) to measure a total pressure of the fluid within the pipe (10);
a plurality of static pressure measuring assemblies (30), wherein the static pressure measuring assemblies (30) are arranged on the pipeline (10), and the static pressure measuring assemblies (30) are arranged on the pipeline (10) at intervals so as to measure the hydrostatic pressure of fluid in different positions in the pipeline (10);
a sensing assembly (40), said sensing assembly (40) being connected to said total pressure measuring assembly (20) and a plurality of said static pressure measuring assemblies (30) to display said total fluid pressure and said static pressure at different locations of said pipeline (10), said sensing assembly (40) comprising: a differential pressure transmitter and a display terminal, wherein the differential pressure transmitter is connected with one total pressure measuring assembly (20) and a plurality of static pressure measuring assemblies (30); and the display terminal is connected with the differential pressure transmitter to display the total pressure of the fluid and the differential pressure between the hydrostatic pressures at different positions.
2. The pipe blockage position detection apparatus according to claim 1, wherein the total pressure measurement assembly (20) includes:
a pressure measuring tube arranged at least partially within the pipe (10), the pressure measuring tube having a measuring opening facing in a direction opposite to the flow direction of the fluid within the pipe (10);
the first end of the pressure conduction pipe is communicated with the pressure measurement pipe, and the second end of the pressure conduction pipe is connected with the detection component (40).
3. The pipe clogging position detecting apparatus according to claim 1, wherein said static pressure measuring assembly (30) comprises:
the static pressure measuring tube is communicated with the pipeline (10), a static pressure measuring port is formed in the static pressure measuring tube, and the direction of the static pressure measuring port is perpendicular to the flow direction of the fluid;
and the first end of the static pressure conduction pipe is communicated with the static pressure measuring pipe, and the second end of the static pressure conduction pipe is connected with the detection component (40).
4. A pipe blockage position detection apparatus according to claim 3, wherein the static pressure measurement port opens in the pipe (10) or extends into the pipe (10) through the static pressure measurement tube.
5. The pipe blockage position detection apparatus according to claim 1, wherein the detection assembly (40) further comprises a plurality of pressure sensors, and the plurality of pressure sensors are respectively connected to the total pressure measurement assembly (20) and the plurality of static pressure measurement assemblies (30).
6. The apparatus of claim 1, wherein the display terminal is configured as a programmable logic controller and a computer, and the display terminal is connected to the differential pressure transmitter via a communication wire.
7. The pipe clogging position detecting apparatus according to claim 1, wherein a plurality of said static pressure measuring assemblies (30) are provided at intervals;
wherein the spacing between adjacent static pressure measurement assemblies (30) is an integral multiple of a preset length.
8. The pipe blockage position detection apparatus according to claim 1, wherein the total pressure measurement assembly (20) and the static pressure measurement assembly (30) are provided as pitot tube structures.
9. The pipe clogging position detecting apparatus according to claim 1, wherein said detecting apparatus further comprises at least one temperature sensor connected to said pipe (10), said temperature sensor being provided on said pipe (10) at a plurality of time intervals to measure the temperature of said pipe (10) at different positions.
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| CN201910143187.3A CN109723976B (en) | 2019-02-26 | 2019-02-26 | Pipeline blockage position detection device |
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| CN201910143187.3A CN109723976B (en) | 2019-02-26 | 2019-02-26 | Pipeline blockage position detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110586582A (en) * | 2019-09-18 | 2019-12-20 | 长沙矿山研究院有限责任公司 | Method for quickly dredging filling pipeline |
| CN110822292A (en) * | 2019-10-29 | 2020-02-21 | 东莞新奥燃气有限公司 | System and method for monitoring running position of gas pipeline through ball |
| CN111122706A (en) * | 2019-12-13 | 2020-05-08 | 上海外经集团控股有限公司 | Non-contact type pipeline foreign matter exploration device and method |
| CN112718722B (en) * | 2020-12-17 | 2022-08-12 | 北京峦海阜程科技发展有限责任公司 | Blockage removing device and method for offshore oilfield pipeline |
| CN113188051B (en) * | 2021-04-22 | 2022-11-18 | 广东简典科技发展有限公司 | High strength intelligence protecting pipe |
| CN113266054A (en) * | 2021-06-07 | 2021-08-17 | 江苏航运职业技术学院 | Self-floating anti-blocking mud conveying pipeline system of large dredger and blocking dredging method |
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