CN216116173U - Measuring device for measuring flow of corrosive medium with large pipe diameter - Google Patents
Measuring device for measuring flow of corrosive medium with large pipe diameter Download PDFInfo
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- CN216116173U CN216116173U CN202122456720.7U CN202122456720U CN216116173U CN 216116173 U CN216116173 U CN 216116173U CN 202122456720 U CN202122456720 U CN 202122456720U CN 216116173 U CN216116173 U CN 216116173U
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Abstract
The utility model relates to a measuring device for measuring the flow of a large-diameter corrosive medium, which comprises a measuring probe, wherein the measuring probe is made of titanium alloy and comprises a pressure taking main pipe, at least one connecting pipe and an ash removal pipe, the connecting pipe is in an X-shaped structure, the intersection of the connecting pipe and the pressure taking main pipe is connected, a negative pressure taking pipe is further arranged at the intersection of the connecting pipe, the negative pressure taking pipe is vertically arranged, four ends of the connecting pipe are respectively connected with the ash removal pipe, positive pressure taking pipes are respectively arranged at two ends of a pipe body of the ash removal pipe, and the positive pressure taking pipes and the pressure taking main pipe are arranged in the same direction and horizontally. The measuring probe of the measuring device is made of titanium alloy, so that the problem that the measuring device is corroded by smoke can be solved, the whole measuring device is equivalent to a speed measuring array for measuring smoke air volume, the influence of nonuniform flow field caused by rotational flow and turbulent flow in an air duct on measurement can be avoided, measuring errors are reduced, and monitoring data are more accurate.
Description
Technical Field
The utility model relates to the technical field of flow monitoring, in particular to a measuring device for measuring the flow of a large-diameter corrosive medium.
Background
Along with the strengthening of the state on the emission control of waste gas pollutants, the flue gas emission flow of a coal-fired power plant is a very important technical index in a flue gas on-line monitoring system, and the flue gas emission flow must be accurately measured according to the regulations of related environmental protection laws and regulations.
The clean flue gas discharged after the combustion of the boiler of the coal-fired power plant contains a large amount of corrosive gas, and because more than 90 percent of domestic flue gas desulfurization devices adopt a limestone-gypsum method for wet desulfurization, the treated clean flue gas has low temperature, high humidity and strong corrosivity. And the flue gas pipeline pipe diameter is big, and the shape of pipeline is also all relatively complicated, leads to the monitoring precision of flue gas not high, causes the error of flue gas monitoring data great easily, influences measuring result.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a measuring device for measuring the flow of large-pipe-diameter corrosive media, so as to solve the problems in the prior art.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
the utility model provides a measuring device for be used for measuring big pipe diameter corrosivity medium flow, includes measuring probe, measuring probe is made by the titanium alloy, measuring probe is including getting pressure house steward, connecting pipe and deashing pipe, it is equipped with one at least to get pressure house steward, the connecting pipe is its intersection of X type structure and gets pressure house steward and be connected, and the intersection of connecting pipe is kept away from get one side of pressure house steward and install the negative pressure and get the pressure pipe, the vertical setting of pressure pipe is got to the negative pressure, four ends of connecting pipe respectively with the deashing union coupling, adjacent two through linking bridge fixed connection between the deashing pipe, the pipe is got to the malleation respectively at the body both ends of deashing pipe, the malleation is got the pressure pipe and is got pressure house steward syntropy and level setting.
In the above scheme, the measuring probe is at least provided with a pressure taking main pipe, and each pressure taking main pipe is provided with the ash removing pipe through a connecting pipe matrix.
In the scheme, a pressure stabilizing tube is arranged at one end of the pressure taking main pipe, which is far away from the junction of the connecting pipes.
In the scheme, two adjacent positive pressure tapping pipes are arranged in parallel.
Compared with the prior art, the utility model has the beneficial effects that: the measuring probe of the measuring device is made of titanium alloy, so that the problem that the measuring device is corroded by smoke can be solved. Every measuring probe is equipped with a pressure manifold at least, every pressure manifold can install 4 malleation pressure manifolds and 1 negative pressure manifold, thereby carry out the multiple spot pressure of getting to the flue gas pipeline is inside, get the average value after getting the pressure, thereby guarantee flow data's accuracy, a whole set of measuring device has been constituteed like this and has been measured the speed array and carry out flue gas air volume and measure, can avoid in the wind channel because the whirl, the inhomogeneous influence brought to the measurement of flow field that the turbulent flow caused, reduce measuring error, make monitoring data more accurate.
Drawings
The disclosure of the present invention is illustrated with reference to the accompanying drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the utility model. In the drawings, like reference numerals are used to refer to like parts. Wherein:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is another schematic structural view of the present invention;
fig. 3 is a schematic structural diagram of the present invention in practice.
Reference numbers in the figures: 1-pressure taking main pipe; 2-connecting pipe; 3-ash removal pipe; 4-positive pressure pipe; 5-negative pressure sampling pipe; 6-connecting a bracket; 7-a voltage stabilizing tube; 8-flue gas pipeline; 9-a flange cover; 10-fixing the plate; 11-a linker.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described in detail with reference to the attached drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution to which the present invention relates.
According to the technical scheme of the utility model, a plurality of alternative structural modes and implementation modes can be provided by a person with ordinary skill in the art without changing the essential spirit of the utility model. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical aspects of the present invention, and should not be construed as all of the present invention or as limitations or limitations on the technical aspects of the present invention.
The technical solution of the present invention is further described in detail with reference to the accompanying drawings and examples.
As shown in figure 1, the measuring device for measuring the flow of the large-diameter corrosive medium comprises a measuring probe, wherein the measuring probe is made of titanium alloy, the measuring probe made of the titanium alloy has strong corrosion resistance, and the problem that the measuring device is corroded by smoke can be solved. In the implementation, the measuring probe can also be made of common 304 stainless steel, 904 stainless steel or aluminum alloy materials, so that the measuring device is prevented from being corroded by smoke.
Measuring probe is including getting pressure house steward 1, connecting pipe 2 and deashing pipe 3, gets pressure house steward 1 and is equipped with one at least, and connecting pipe 2 is its junction of X type structure and is connected with getting pressure house steward 1, and the junction of connecting pipe 2 is kept away from one side of getting pressure house steward 1 and is installed negative pressure and get pressure pipe 5, and negative pressure gets the vertical setting of pipe 5. The body of negative pressure pipe 5 is the horn mouth form setting for receive the flow of windward side, the inside flue gas of flue gas pipe can directly pass from negative pressure pipe 5.
Four ends of connecting pipe 2 are connected with deashing pipe 3 respectively, through 6 fixed connection of linking bridge between two adjacent deashing pipes 3, and linking bridge 6 is titanium alloy's straight tube or dead lever, and the pipe 4 is pressed to the malleation pressure of installing respectively at deashing pipe 3's body both ends, and the malleation is pressed and is pressed pipe 4 and pressure house steward 1 syntropy and level setting. The positive pressure sampling pipe 4 is provided with two in each ash removing pipe 3 and used for receiving the flow of the leeward side, the wind speed flow detected by the positive pressure sampling pipe 4 and the negative pressure sampling pipe 5 forms a pressure difference, and a measuring probe is connected with a differential pressure transmitter so as to calculate the smoke discharge flow in the smoke pipe.
As a preferable scheme, two adjacent positive pressure sampling pipes 4 are arranged in parallel. Thus, the whole measuring probe is conveniently installed in the flue gas pipeline, and a too large detection port is not formed in the flue gas pipeline due to disorder of the ash removal pipe 3.
As a preferred scheme, a pressure stabilizing tube 7 is arranged at one end of the pressure taking main pipe 1 far away from the intersection of the connecting pipes 2, and the pressure difference detected by the pressure stabilizing tube 7 is stabilized, so that the uploaded flow data is accurate.
Referring to fig. 2, in one embodiment, the measurement probe has at least one pressure-taking main pipe 1, and the ash-removing pipe 3 is mounted on each pressure-taking main pipe 1 in a matrix form through a connecting pipe 2. Through matrix installation deashing pipe 3, and the pipe 4 is being pressed to the malleation is being installed respectively at deashing pipe 3 both ends to carry out the multiple spot to the inside pressure of getting of flue gas pipeline, get the average value after getting the pressure, thereby guarantee flow data's accuracy, whole equipment has been equivalent to and has been constituteed the array that tests the speed and carry out the flue gas amount of wind and measure like this.
In implementation, referring to fig. 3, a detection port is firstly formed in the flue gas duct 8, then the measurement probe is installed in the flue gas duct 8 through the flange cover 9, the section of the pressure taking main pipe 1 with the pressure stabilizing pipe 7 is left on the outer side of the flue gas duct 8, the output end of the pressure stabilizing pipe 7 is provided with a connector 11 through an installation plate 10, and the connector 11 is used for connecting a differential pressure transmitter or a flow sensor to collect flow data detected by the measurement probe in the flue gas duct 8.
When a plurality of measuring probes are inserted into 8 air channels of the flue gas pipeline, the average flow speed of each measuring point of the cross section of the air channel can be accurately measured by connecting the full pressure output by the measuring probes with the full pressure and the static pressure in parallel. This means that if the measurement probes are arranged in the air duct as much as possible, and each measurement probe is provided with the positive pressure sampling pipe 4 and the negative pressure sampling pipe 5 as much as possible, the influence of the non-uniform flow field caused by the rotational flow and the turbulent flow in the air duct on the measurement can be avoided, and the measurement error can be reduced.
This measuring device not only can make monitoring data more accurate, and repeatability is high, but also can adapt to different flue gas pipeline 8 installation environment, increases measuring device life and result of use, can effectively solve the problem in the background art.
By adopting the plug-in arrangement, the wind shielding area of the measuring device can be almost ignored for the large air channel in the whole flue gas pipeline 8, so that the pressure loss of the whole air channel fluid is almost zero, the energy-saving effect is very obvious, the installation is convenient, and the device is particularly suitable for the use occasion of flow measurement of low static pressure fluid.
In conclusion, the measuring probe of the measuring device is made of titanium alloy, so that the problem that the measuring device is corroded by smoke can be solved. Every measuring probe is equipped with a pressure manifold 1 at least, every pressure manifold 1 can install 4 malleation pressure manifolds 4 and 1 negative pressure manifolds 5, thereby carry out the multiple spot pressure of getting to flue gas pipeline inside, average value after getting the pressure, thereby guarantee the accuracy of flow data, a whole set of measuring device has been equivalent to and has been constituteed the array that tests the speed and carry out the flue gas amount of wind and measure like this, can avoid in the wind channel because the whirl, the influence that the inhomogeneous measurement of flow field that the turbulent flow caused brings is reduced measuring error, make monitoring data more accurate.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. A measuring device for measuring the flow of large-diameter corrosive media is characterized in that: including measuring probe, measuring probe is made by the titanium alloy, measuring probe is including getting pressure house steward (1), connecting pipe (2) and deashing pipe (3), it is equipped with one at least to get pressure house steward (1), connecting pipe (2) are X type structure its intersection and are connected with getting pressure house steward (1), and the intersection of connecting pipe (2) is kept away from get one side of pressure house steward (1) and install negative pressure and get pressure pipe (5), the vertical setting of negative pressure pipe (5), four ends of connecting pipe (2) are connected with deashing pipe (3) respectively, adjacent two through linking bridge (6) fixed connection between deashing pipe (3), the body both ends of deashing pipe (3) are installed the malleation respectively and are got pressure pipe (4), the malleation is got pressure pipe (4) and is got pressure house steward (1) syntropy and level setting.
2. A measuring device for measuring the flow of large-diameter corrosive media according to claim 1, wherein: the measuring probe is at least provided with a pressure taking header pipe (1), and each pressure taking header pipe (1) is installed with the ash removing pipe (3) through a connecting pipe (2) in a matrix manner.
3. A measuring device for measuring the flow of large-diameter corrosive media according to claim 1, wherein: and a pressure stabilizing tube (7) is arranged at one end of the pressure taking header pipe (1) far away from the intersection of the connecting tubes (2).
4. A measuring device for measuring the flow of large-diameter corrosive media according to claim 1, wherein: two adjacent positive pressure sampling pipes (4) are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122456720.7U CN216116173U (en) | 2021-10-13 | 2021-10-13 | Measuring device for measuring flow of corrosive medium with large pipe diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122456720.7U CN216116173U (en) | 2021-10-13 | 2021-10-13 | Measuring device for measuring flow of corrosive medium with large pipe diameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216116173U true CN216116173U (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122456720.7U Active CN216116173U (en) | 2021-10-13 | 2021-10-13 | Measuring device for measuring flow of corrosive medium with large pipe diameter |
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| CN (1) | CN216116173U (en) |
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2021
- 2021-10-13 CN CN202122456720.7U patent/CN216116173U/en active Active
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Address after: 324000 thermal power plant of Juhua Group Company, Kecheng District, Quzhou City, Zhejiang Province Patentee after: Zhu Qiyong Address before: 210009 2-610, Huashen Science Park, No. 10, Huashen temple, Yuhuatai District, Nanjing, Jiangsu Province Patentee before: Zhu Qiyong |
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