Portable ultrasonic flue gas flow rate meter

Abstract

The utility model discloses a portable ultrasonic wave flue gas flow velocity appearance, its technical scheme main points are including ultrasonic wave fixed link, the ultrasonic wave fixed link inserts into the flue, the outer tube, one end of the outer tube and the one end hinged together of ultrasonic wave fixed link, the outer tube and ultrasonic wave fixed link insert into the flue together, handle, handle is connected in the outer tube end away from ultrasonic wave fixed link, ultrasonic wave generator, ultrasonic wave generator fixed connection in ultrasonic wave fixed link one side, ultrasonic wave receiver, ultrasonic wave receiver fixed connection in ultrasonic wave fixed link and is used to receive the ultrasonic wave of ultrasonic wave generator generation one side and is arranged ultrasonic wave generator, and control assembly, through the cooperation of ultrasonic wave generator and ultrasonic wave receiver to realize ultrasonic wave flow velocity, has improved the precision of measurement and not set up the passage for flue gas to pass through, will not appear the problem of jam.

Description

Technical Field

[0001] This utility model relates to the technical field of flue gas velocity measurement, and more specifically, it relates to a portable ultrasonic flue gas velocity meter. Background Technology

[0002] Currently, the main method for measuring flue gas flow rate in China is differential pressure measurement. The sampling tube is designed with an S-shaped Pitot tube at the front end and a pressure sensor at the rear end. The flow rate is obtained by measuring the pressure difference between the two channels, thereby calculating the flue gas velocity. However, since flue gas contains corrosive gases, dust, water vapor, etc., and the outlet flue gas of wet desulfurization units contains viscous gypsum droplets, this can cause blockage at the front end of the existing measuring instruments. Furthermore, for flue gas with relatively low flow velocities, the accuracy requirements for pressure sensors are high, and existing pressure sensors often have large measurement errors. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this invention is to provide a portable ultrasonic flue gas velocity meter, which uses the cooperation of an ultrasonic generator and an ultrasonic receiver to measure flow velocity using ultrasonic waves. This improves the accuracy of the measurement and eliminates the problem of blockage by eliminating the need for a channel for flue gas to pass through.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a portable ultrasonic flue gas velocity meter, including an ultrasonic fixing rod, wherein the ultrasonic fixing rod is inserted into the flue;

[0005] An outer tube, one end of which is hinged to one end of an ultrasonic fixing rod, and the outer tube and the ultrasonic fixing rod are inserted into the flue together.

[0006] A handle, which is connected to the end of the outer tube away from the ultrasonic fixing rod;

[0007] An ultrasonic generator, wherein the ultrasonic generator is fixedly connected to one side of an ultrasonic fixing rod;

[0008] An ultrasonic receiver is fixedly connected to the side of the ultrasonic fixing rod where the ultrasonic generator is located and is used to receive ultrasonic waves generated by the ultrasonic generator.

[0009] And a control component for controlling the rotation of the ultrasonic fixing rod relative to the outer tube.

[0010] The present invention is further configured such that: two fixed seats are fixedly connected to the ultrasonic fixing rod, the two fixed seats are arranged along the length direction of the ultrasonic fixing rod, and the ultrasonic generator and the ultrasonic receiver are respectively fixedly connected to the two fixed seats.

[0011] The present invention is further configured such that: a connector is fixedly connected to one end of the ultrasonic fixing rod near the outer tube, and a connecting seat is fixedly connected to one end of the outer tube near the ultrasonic fixing rod; the connector is hinged to the connecting seat to realize the hinged connection of the ultrasonic fixing rod on the outer tube.

[0012] The present invention is further configured such that one side of the connector is rotatably connected to the connector seat;

[0013] The control component includes a control rod, which is disposed inside the outer tube and can slide along the length of the outer tube.

[0014] And a control component, one end of which is rotatably connected to the end of the control rod near the control component, and the other end of which is rotatably connected to the end of the connector away from the hinge point between the connector and the connector seat.

[0015] The present invention is further configured such that: the control component also includes a pin, and a through groove is provided on one side of the outer tube away from the ultrasonic fixing rod, penetrating the side wall of the outer tube; one end of the pin is fixedly connected to the end of the control rod away from the control component, and the other end extends out of the outer tube through the through groove, and the pin can slide along the length direction of the outer tube in the through groove;

[0016] The fixing plate is rotatably connected to the outside of the outer tube. The fixing plate is perpendicular to the pin and the rotation axis of the fixing plate is parallel to the pin. The fixing plate is provided with two slots. When the side of the fixing plate with the slots rotates to the direction along the axis of the outer tube, the pin can be inserted into the two slots respectively.

[0017] The present invention is further configured such that: the fixing plate is rotatably connected to the outside of the outer tube via a rotating shaft, and the fixing plate is also threaded with a non-detachable screw, which fixes the fixing plate in the position outside the outer tube by rotation.

[0018] The present invention is further configured such that: a sealing gasket that fits against the inner wall of the outer tube is fixedly connected to the control rod.

[0019] The present invention is further configured such that: two flange fasteners are fixedly connected to the outer side of the end of the outer tube away from the ultrasonic fixing rod, and the two flange fasteners are fixedly connected to the handle.

[0020] In summary, the present invention has the following advantages over the prior art: the present invention achieves ultrasonic flow velocity measurement by combining an ultrasonic generator and an ultrasonic receiver, which improves the measurement accuracy and eliminates the need for a channel for flue gas to pass through, thus avoiding blockage problems. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the embodiment;

[0022] Figure 2 for Figure 1 Enlarged schematic diagram of part A;

[0023] Figure 3 for Figure 1 Enlarged schematic diagram of part B;

[0024] Figure 4 This is a cross-sectional view illustrating the control components in an embodiment.

[0025] In the diagram: 1. Ultrasonic fixing rod; 11. Fixing base; 12. Connector; 2. Outer tube; 21. Connecting base; 3. Ultrasonic generator; 4. Ultrasonic receiver; 5. Control assembly; 51. Control rod; 52. Control component; 53. Sealing gasket; 54. Pin; 55. Fixing plate; 56. Slot. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments in this application, other similar embodiments obtained by those skilled in the art without creative effort should all fall within the scope of protection of this application. Furthermore, directional terms mentioned in the following embodiments, such as "up," "down," "left," and "right," are only for reference to the directions in the accompanying drawings; therefore, the directional terms used are for illustrative purposes and not for limiting the invention.

[0027] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0028] Example: A portable ultrasonic flue gas velocity meter, see attached document. Figure 1 -Appendix Figure 4 The device includes an ultrasonic fixing rod 1, an outer tube 2, a handle, an ultrasonic generator 3, an ultrasonic receiver 4, and a control component 5. The ultrasonic fixing rod 1 is inserted into the flue. One end of the outer tube 2 is hinged to one end of the ultrasonic fixing rod 1, and the outer tube 2 and the ultrasonic fixing rod 1 are inserted into the flue together. The handle is connected to the end of the outer tube 2 away from the ultrasonic fixing rod 1. The ultrasonic generator 3 is fixedly connected to one side of the ultrasonic fixing rod 1. The ultrasonic receiver 4 is fixedly connected to the side of the ultrasonic fixing rod 1 where the ultrasonic generator 3 is located and is used to receive the ultrasonic waves generated by the ultrasonic generator 3. The control component 5 is used to control the rotation of the ultrasonic fixing rod 1 relative to the outer tube 2.

[0029] When in use, insert the outer tube 2 and ultrasonic fixing rod 1 into the flue using the handle. Then, the control component 5 drives the ultrasonic fixing rod 1 to rotate 60° on the outer tube 2, and then the flue gas velocity measurement begins. After the measurement is completed, the control component 5 drives the ultrasonic fixing rod 1 to rotate back to the initial position, and then the handle drives the outer tube 2 and ultrasonic fixing rod 1 to be pulled out of the flue.

[0030] Specifically, two fixed seats 11 are fixedly connected to the ultrasonic fixing rod 1. The two fixed seats 11 are arranged along the length of the ultrasonic fixing rod 1. The ultrasonic generator 3 and the ultrasonic receiver 4 are fixedly connected to the two fixed seats 11 respectively.

[0031] Specifically, a connector 12 is fixedly connected to one end of the ultrasonic fixing rod 1 near the outer tube 2, and a connector 21 is fixedly connected to one end of the outer tube 2 near the ultrasonic fixing rod 1. The connector 12 is hinged to the connector 21 to achieve the hinged connection of the ultrasonic fixing rod 1 on the outer tube 2.

[0032] Specifically, one side of the connector 12 is rotatably connected to the connector seat 21; the control assembly 5 includes a control rod 51 and a control element 52. The control rod 51 is disposed inside the outer tube 2 and can slide within the outer tube 2 along the length of the outer tube 2; one end of the control element 52 is rotatably connected to the end of the control rod 51 near the control element 52, and the other end of the control element 52 is rotatably connected to the end of the connector 12 away from the hinge point between the connector 12 and the connector seat 21.

[0033] By sliding the control rod 51 within the outer tube 2, the control component 52 can be pushed to rotate the connector 12, thereby causing the ultrasonic fixing rod 1 to rotate.

[0034] Specifically, the control component 5 also includes a pin 54 and a fixing plate 55. A through groove is provided on one side of the outer tube 2 away from the ultrasonic fixing rod 1, penetrating the side wall of the outer tube 2. One end of the pin 54 is fixedly connected to the end of the control rod 51 away from the control component 52, and the other end extends out of the outer tube 2 through the through groove, and the pin 54 can slide in the through groove along the length direction of the outer tube 2. The fixing plate 55 is rotatably connected to the outside of the outer tube 2. The fixing plate 55 is perpendicular to the pin 54 and the rotation axis of the fixing plate 55 is parallel to the pin 54. Two slots 56 are provided on the fixing plate 55. When the side of the fixing plate 55 with slots 56 is rotated to the direction of the axis of the outer tube 2, the pin 54 can be respectively inserted into the two slots 56.

[0035] By setting the fixing plate 55, the pin 54 can be locked in the two slots 56 respectively. When the pin 54 is locked in the slot 56 close to the ultrasonic fixing rod 1, the ultrasonic fixing rod 1 is in a 60° rotation position. When the ultrasonic fixing rod 1 is in the slot 56 away from the ultrasonic fixing rod 1, the ultrasonic fixing rod 1 is in the initial position.

[0036] Specifically, the fixing plate 55 is rotatably connected to the outside of the outer tube 2 via a rotating shaft. The fixing plate 55 is also threaded with a non-detachable screw, which fixes the fixing plate 55 in the position outside the outer tube 2 by rotating.

[0037] Specifically, a sealing gasket 53 is fixedly connected to the control rod 51 and fits against the inner wall of the outer tube 2. The sealing gasket 53 prevents the flue gas in the flue from entering the outer tube 2.

[0038] Specifically, two flange fasteners are fixedly connected to the outer side of the end of the outer tube 2 away from the ultrasonic fixing rod 1, and the two flange fasteners are fixedly connected to the handle.

[0039] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A portable ultrasonic flue gas flow rate meter characterized by: Includes an ultrasonic fixing rod (1), which is inserted into the flue; Outer tube (2), one end of which is hinged to one end of ultrasonic fixing rod (1), and the outer tube (2) and ultrasonic fixing rod (1) are inserted into the flue together; A handle is connected to the end of the outer tube (2) away from the ultrasonic fixing rod (1); An ultrasonic generator (3) is fixedly connected to one side of an ultrasonic fixing rod (1); An ultrasonic receiver (4) is fixedly connected to the side of the ultrasonic fixing rod (1) where the ultrasonic generator (3) is located and is used to receive the ultrasonic waves generated by the ultrasonic generator (3). and a control component (5) for controlling the rotation of the ultrasonic fixing rod (1) relative to the outer tube (2).

2. The portable ultrasonic flue gas flow rate meter according to claim 1, characterized in that: Two fixed seats (11) are fixedly connected to the ultrasonic fixing rod (1). The two fixed seats (11) are arranged along the length of the ultrasonic fixing rod (1). The ultrasonic generator (3) and the ultrasonic receiver (4) are fixedly connected to the two fixed seats (11) respectively.

3. The portable ultrasonic flue gas flow rate meter according to claim 1, wherein: The ultrasonic fixing rod (1) is fixedly connected to a connector (12) at one end near the outer tube (2), and a connector (21) is fixedly connected to the other end of the outer tube (2) near the ultrasonic fixing rod (1). The connector (12) is hinged to the connector (21) to achieve the hinge of the ultrasonic fixing rod (1) on the outer tube (2).

4. A portable ultrasonic flue gas flow rate meter according to claim 3, wherein: One side of the connector (12) is rotatably connected to the connector (21); The control component (5) includes a control rod (51), which is disposed inside the outer tube (2) and is capable of sliding within the outer tube (2) along the length of the outer tube (2); And a control element (52), one end of which is rotatably connected to the end of the control rod (51) near the control element (52), and the other end of which is rotatably connected to the end of the connector (12) away from the hinge point between the connector (12) and the connector (21).

5. A portable ultrasonic flue gas velocity meter according to claim 4, characterized in that: The control component (5) also includes a pin (54). A through groove is provided on one side of the outer tube (2) away from the ultrasonic fixing rod (1) to penetrate the side wall of the outer tube (2). One end of the pin (54) is fixedly connected to the end of the control rod (51) away from the control component (52), and the other end extends out of the outer tube (2) through the through groove. The pin (54) can slide along the length direction of the outer tube (2) in the through groove. And a fixing plate (55), which is rotatably connected to the outside of the outer tube (2). The fixing plate (55) is perpendicular to the pin (54) and the rotation axis of the fixing plate (55) is parallel to the pin (54). The fixing plate (55) is provided with two slots (56). When the side of the fixing plate (55) with the slots (56) is rotated to the direction along the axis of the outer tube (2), the pin (54) can be inserted into the two slots (56) respectively.

6. A portable ultrasonic flue gas velocity meter according to claim 5, characterized in that: The fixing plate (55) is rotatably connected to the outside of the outer tube (2) via a rotating shaft. The fixing plate (55) is also threaded with a non-detachable screw, which fixes the fixing plate (55) in the position outside the outer tube (2) by rotating.

7. A portable ultrasonic flue gas velocity meter according to claim 4, characterized in that: The control rod (51) is fixedly connected to a sealing gasket (53) that fits against the inner wall of the outer tube (2).

8. A portable ultrasonic flue gas velocity meter according to claim 1, characterized in that: Two flange fasteners are fixedly connected to the outer side of the end of the outer tube (2) away from the ultrasonic fixing rod (1), and the two flange fasteners are fixedly connected to the handle.

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