Flue gas flow measuring device
By designing an adjustable flue gas flow meter probe position adjustment device, the problem of inaccurate flue gas flow measurement in large pipelines is solved, realizing comprehensive flow detection of flue gas flow, improving the accuracy and precision of flue gas flow measurement, and making it suitable for flue gas flow measurement devices in various industrial scenarios such as power plants, chemical plants, and iron smelting plants.
Patent Information
- Application Number
- CN202520401364.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-03-10
AI Technical Summary
Existing flue gas flow meters cannot accurately reflect flue gas flow when measuring at the center of the pipeline, especially in large pipelines where the flue gas velocity differs significantly between the center and the edge, leading to inaccurate measurements.
Design a flue gas flow measurement device. The position of the flue gas flow meter probe in the radial and circumferential directions of the pipe body is adjusted by rotating the first and second sets of rings to realize the detection of flue gas flow at different positions. Combined with the support ring and reinforcing rod structure, the probe can be flexibly adjusted inside the pipe.
It improves the accuracy of flue gas flow measurement, enabling comprehensive detection of flue gas flow in both the radial and circumferential directions of the pipeline, ensuring the reliability and accuracy of the measurement results.
Smart Images
Figure CN223769585U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flue gas measurement technology, and in particular to a flue gas flow measurement device. Background Technology
[0002] Large quantities of flue gas are emitted in various industrial applications, including power plants, chemical plants, and iron smelters. Measuring flue gas flow rate is a crucial standard for verifying whether emissions are normal and whether emission reduction targets are met. Typically, the flue gas flow meter probe is placed at the center of the pipe to reflect the flow rate. However, in some cases, the distribution of flue gas in the radial cross-section of the pipe is uneven. For example, in pipes with large inner diameters, there can be significant differences in flue gas velocity between the center and the edges. Therefore, measuring only the center of the pipe can sometimes lead to inaccurate flow rate measurements. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a flue gas flow measurement device that can adjust the position of the flue gas flow meter probe on the radial section of the pipe body and improve the accuracy of flue gas flow measurement by comparing the flue gas flow at different positions.
[0004] The technical solution adopted by this utility model is as follows: a flue gas flow measurement device is provided, including a first support ring correspondingly and fixed to the inner wall of the pipe body; a first annular groove is coaxially formed on the inner side of the first support ring; a first sleeve ring is rotatably sleeved in the first annular groove; a second support ring is fixed on one side of the inner wall of the first sleeve ring; the axial direction of the second support ring is parallel to the axial direction of the first sleeve ring; the second support ring is connected to the first sleeve ring by a reinforcing rod; a second annular groove is coaxially formed on the inner side of the second support ring; a second sleeve ring is rotatably sleeved in the second annular groove; a support is fixed on the inner wall of the second sleeve ring; a probe of a flue gas flow meter is connected to the support; the inner diameter of the second sleeve ring is larger than the inner radius of the pipe body.
[0005] To further optimize this technical solution, a flue gas flow measurement device is provided with two supports, which are respectively distributed at both ends of the second ring radially.
[0006] To further optimize this technical solution, a hanging rod is fixed to the inner wall of the first ring and the inner wall of the second ring of a flue gas flow measuring device; the upper end of the hanging rod is attached to the top outlet of the pipe body.
[0007] The beneficial effects of this utility model are as follows:
[0008] By rotating the first ring along the first ring groove, the position of the second support ring in the circumferential direction inside the pipe body can be changed, thereby changing the position of the flue gas flow meter probe relative to the circumferential direction inside the pipe body, and realizing the detection of flue gas flow at different positions in the circumferential direction inside the pipe body.
[0009] By rotating the second ring along the second ring groove, the center distance between the probe of the flue gas flow meter and the pipe body can be changed, thereby enabling the detection of flue gas flow at different radial positions inside the pipe body.
[0010] By combining the rotation of the first and second rings respectively, the position of the flue gas flow meter probe on the radial section inside the pipe body can be adjusted more comprehensively, satisfying the flue gas flow measurement at different points on the radial section, and improving the measurement accuracy through comparison. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a partial structural exploded view of the device.
[0013] In the diagram, 1. Pipe body; 2. First support ring; 3. First annular groove; 4. First collar; 5. Second support ring; 6. Reinforcing rod; 7. Second annular groove; 8. Second collar; 9. Support; 10. Probe; 11. Hanging rod. Detailed Implementation
[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0015] like Figure 1-2 As shown, a flue gas flow measurement device includes a first support ring 2 correspondingly sleeved and fixed to the inner wall of a pipe body 1; a first annular groove 3 is coaxially formed on the inner side of the first support ring 2; a first sleeve ring 4 is rotatably sleeved in the first annular groove 3; a second support ring 5 is fixed to one side of the inner wall of the first sleeve ring 4; the axial direction of the second support ring 5 is parallel to the axial direction of the first sleeve ring 4; the second support ring 5 is connected to the first sleeve ring 4 through a reinforcing rod 6; a second annular groove 7 is coaxially formed on the inner side of the second support ring 5; a second sleeve ring 8 is rotatably sleeved in the second annular groove 7; a support 9 is fixed to the inner wall of the second sleeve ring 8; a probe 10 of a flue gas flow meter is connected to the support 9; the flue gas flow meter body can be installed on the pipe body 1 or at a suitable external location, which is not limited in this application; the inner diameter of the second sleeve ring 8 is larger than the inner radius of the pipe body 1, so that the probe 10 of the flue gas flow meter can be adjusted to the center position of the pipe body 1.
[0016] When measuring the flue gas flow rate inside the pipe body 1, rotating only the first ring 4 will change the circumferential position of the flue gas flow meter probe 10 inside the pipe body 1, while keeping the distance between the probe 10 and the center of the pipe body 1 unchanged. This process can reflect whether the flue gas emission is uniform in the circumferential direction by detecting the changes in flue gas flow rate at different points. When there is a large difference in the flue gas flow rate measured at different circumferential positions, it usually means that there are cracks or leaks in the side wall of the pipe body 1. Therefore, the measurement under this process can also verify whether the pipe body 1 is damaged.
[0017] When only the second ring 8 is rotated, the center distance between the probe 10 and the pipe body 1 will change, and different points in the radial direction of the flue gas under the position of the second ring 8 can be detected, which can verify whether there is a significant difference in flue gas velocity between the center position and the edge position of the pipe.
[0018] By rotating the first ring 4 and the second ring 8 in combination, the probe 10 can be adjusted to various positions on the radial section of the pipe body 1. By comparing multiple positions, it is possible to check whether the flue gas emission is uniform and obtain more accurate flue gas flow detection data.
[0019] Of course, in general, the flue gas emission inside the pipe body 1 is relatively regular. Either the difference in flue gas velocity between the center and the edge of the pipe is not obvious, and the flue gas emission is relatively uniform. In this case, the probe 10 can be adjusted to any position. Or the flue gas velocity changes regularly from the center to the edge of the pipe. In this case, by probing the center of the pipe with the probe 10 and then probing the edge, and by comparing and calculating the data, a more accurate overall flue gas emission flow rate can be obtained.
[0020] like Figure 1-2 As shown, there are two supports 9, which are respectively distributed at both ends of the radial direction of the second ring 8. The fact that there are two supports 9 means that the probes 10 of the flue gas flow meter can be installed separately. By adjusting the second ring 8, the center position and the edge position of the pipe body 1 can be detected simultaneously, which simplifies the comparison process and improves convenience.
[0021] like Figure 1 As shown, hanging rods 11 are fixed to the inner walls of the first ring 4 and the second ring 8 respectively; the upper end of the hanging rod 11 is attached to the top outlet of the pipe body 1. The position of the first ring 4 and the second ring 8 can be adjusted externally by the hanging rod 11, and the position of the hanging rod 11 can also be used to reflect the position of the probe 10 on the radial section inside the pipe body 1.
[0022] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. A flue gas flow measuring device, characterized by: The utility model relates to a smoke flowmeter probe fixing device, which comprises a first support ring (2) fixed in the inner wall of a pipeline body (1) in a corresponding sleeve joint mode; a first ring groove (3) is coaxially opened on the inner side of the first support ring (2) in a corresponding mode; a first sleeve ring (4) is rotatably sleeved in the first ring groove (3) in a corresponding mode; a second support ring (5) is fixed on one side of the inner wall of the first sleeve ring (4); the axial direction of the second support ring (5) is parallel to the axial direction of the first sleeve ring (4); the second support ring (5) is connected with the first sleeve ring (4) through a reinforcing rod (6); a second ring groove (7) is coaxially opened on the inner side of the second support ring (5) in a corresponding mode; a second sleeve ring (8) is rotatably sleeved in the second ring groove (7) in a corresponding mode; a support (9) is fixed on the inner wall of the second sleeve ring (8); a probe (10) of a smoke flowmeter is connected to the support (9); and the inner diameter of the second sleeve ring (8) is larger than the inner radius of the pipeline body (1).
2. A flue gas flow measuring device according to claim 1, characterised in that: The support (9) is provided with two supports, which are respectively distributed at the two ends of the radial direction of the second sleeve ring (8).
3. A flue gas flow measuring device according to claim 1, characterised in that: The inner wall of the first sleeve ring (4) and the inner wall of the second sleeve ring (8) are respectively fixed with a hanging rod (11); and the upper end of the hanging rod (11) is hung on the top outlet of the pipeline body (1).