Target flow meter with adjustable monitoring angle

Abstract

The application discloses a kind of monitoring angle-adjustable target flowmeter, including flowmeter mechanism, the bottom fixedly connected with monitoring mechanism, monitoring mechanism is equipped with targeting sensor and the adjusting mechanism of adjusting the angle of targeting sensor.It is set up in the inside of monitoring mechanism by supporting piece in the application that targeting sensor is active, and the back of targeting sensor is respectively hinged with fixedly connected with rotating mechanism horizontal telescopic plate and vertical telescopic plate, and rotating mechanism drives horizontal telescopic plate and vertical telescopic plate whole rotation respectively, so as to drive targeting sensor to support piece as fulcrum swing or pitch oscillation, so that the front of targeting sensor can be adjusted as always perpendicular to the flow direction according to fluid, therefore, the flowmeter of the application can make the angle of targeting sensor change, can carry out the flow monitoring of different direction flue gas in the inside of monitoring outer tube, overcome the problem that flow direction change flue gas cannot be monitored in use.

Description

Technical Field

[0001] This invention relates to a flow meter, and more particularly to a target flow meter with an adjustable monitoring angle. Background Technology

[0002] Flue gas flow meters are instruments used to measure the flow rate of flue gas in industrial emissions. They are commonly used in power plant boilers and other similar applications. A complete flue gas flow meter system typically consists of a flow sensor, an intelligent LCD main unit, temperature and pressure compensation components, and instrument valve assemblies. Measurements are performed using various principles, such as the Pitot tube principle and the thermal mass flow principle. When using a flue gas flow meter, factors such as accuracy, stability, high-temperature resistance, and corrosion resistance must be considered to adapt to harsh industrial environments. To ensure the accuracy of measurement results, installation must be performed according to the manufacturer's instructions, and regular calibration and maintenance are necessary.

[0003] Existing flue gas flow meters, after installation, can measure flue gas flow in a single direction. However, when the flue gas flow direction changes, the meter cannot accurately measure the changing flow direction because it cannot be moved after installation. Therefore, it is highly sensitive to the flue gas flow direction during measurement; when the flow direction changes, the measured data is inaccurate and the meter cannot be used. Summary of the Invention

[0004] Purpose of the invention: The purpose of this invention is to provide a target flow meter with an adjustable monitoring angle, which can flexibly adjust the monitoring angle according to the direction of fluid flow.

[0005] Technical Solution: The target flow meter with adjustable monitoring angle according to the present invention includes a flow meter mechanism and a monitoring mechanism disposed below the flow meter mechanism. The monitoring mechanism includes a monitoring outer tube through which fluid flows, and a target sensor electrically connected to the flow meter mechanism is disposed inside the monitoring outer tube. The monitoring mechanism includes an adjustment mechanism for adjusting the angle between the front of the target sensor and the direction of fluid flow. The adjustment mechanism includes a support member fixed to the back of the target sensor, a support groove disposed inside the monitoring outer tube for movably fixing the support member so that the target sensor can movably stand upright in the monitoring outer tube with the support member as a fulcrum, and a hinge to the bottom and side of the back of the target sensor. The device includes a horizontal telescopic plate and a vertical telescopic plate perpendicular to the back of the target sensor. The horizontal and vertical telescopic plates are respectively equipped with a fixed end hinged to the target sensor and a telescopic end that extends and retracts relative to the fixed end. The telescopic ends are fixedly connected to a rotating mechanism to drive the horizontal and vertical telescopic plates to rotate as a whole. The overall rotation of the horizontal or vertical telescopic plate causes the target sensor to swing left and right or pitch so that the direction of fluid flow is always perpendicular to the front of the target sensor. An inner pressure sensing ring is connected inside the monitoring outer tube. This inner pressure sensing ring is electrically connected to the rotating mechanism via a converter, thereby driving the rotating mechanism to rotate accordingly.

[0006] The rotating mechanism includes a first rotating mechanism and a second rotating mechanism. The first rotating mechanism includes a vertical rotating shaft with one end fixedly connected to the telescopic end of the horizontal telescopic plate and the other end vertically passing through the side wall of the monitoring outer tube. The vertical rotating shaft is fixedly connected to a first driven gear, which meshes with a first driving gear connected to the output shaft of a first motor. The second rotating mechanism includes a horizontal rotating shaft with one end fixedly connected to the telescopic end of the vertical telescopic plate and the other end horizontally passing through the side wall of the monitoring outer tube. The horizontal rotating shaft is fixedly connected to a second driven gear, which meshes with a second driving gear connected to the output shaft of a second motor. Sealing rings for sealing are provided at the positions where the vertical rotating shaft and the horizontal rotating shaft pass through the side wall of the monitoring outer tube, respectively. The first motor is electrically connected to a first converter located at the bottom of the inner air pressure sensing ring, and the second motor is electrically connected to a second converter located on the side of the inner air pressure sensing ring.

[0007] The flow meter mechanism includes a bent connecting rod that extends radially into the monitoring outer tube. The flow meter mechanism includes a detection box that is electrically connected to the target sensor and can receive the target sensor signal. A hollow outer tube is vertically fixed at the bottom of the detection box, and the monitoring outer tube is fixed to the bottom end of the hollow outer tube. The bent connecting rod includes a vertical section located inside the hollow outer tube and a transverse section located inside the monitoring outer tube. The transverse section is arranged along the axial direction of the monitoring outer tube and fixed to the bottom of the vertical section.

[0008] The support groove is located at the end of the transverse section near the target sensor; the support member is a sphere, and the support groove is a circular groove with its opening facing the back of the target sensor; the extensions of the rotation axes of the rotation mechanism are perpendicular to each other and pass through the center of the sphere. Preferably, the extensions of the vertical rotation axis and the transverse rotation axis are perpendicular and pass through the center of the sphere.

[0009] The target sensor has a reset mechanism on its back for resetting the target sensor. The reset mechanism includes a fixed cylinder fixed to the monitoring outer tube and a spring with one end fixed to the fixed cylinder and the other end in contact with the back of the target sensor. The monitoring outer tube has two fixed rods that are intersected and connected in a radial plane. The two ends of each fixed rod are fixed to the inner side wall of the monitoring outer tube. A fixed cylinder is fixed at both ends of each fixed rod.

[0010] Beneficial Effects: Compared with the prior art, the present invention achieves the following significant effects: The target sensor is supported by a ball at the end of the connecting rod. A horizontal telescopic plate and a vertical telescopic plate, which are fixedly connected to the rotating mechanism, are respectively hinged on the front of the target sensor. The rotating mechanism drives the horizontal telescopic plate and the vertical telescopic plate to rotate, thereby causing the target sensor to swing left and right or pitch around the ball as a fulcrum. This allows the front of the target sensor to be adjusted to always be perpendicular to the flow direction of the fluid. Therefore, the flow meter of the present invention can change the angle of the target sensor, and can monitor the flow rate of flue gas in different directions inside the monitoring outer tube, overcoming the problem of not being able to monitor flue gas with changing flow direction during use. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0012] Figure 2 This is a partial structural diagram of the monitoring mechanism of the present invention;

[0013] Figure 3 This is a schematic diagram of the internal connection structure of the monitoring outer tube and the external connection structure of the flow meter mechanism of the present invention;

[0014] Figure 4 This is a schematic diagram of the internal connection structure of the monitoring mechanism and the flow meter mechanism of the present invention;

[0015] Figure 5 This is a schematic diagram of the internal air pressure sensing ring and converter structure of the present invention;

[0016] Figure 6 This is a schematic diagram of the overall structure of the adjustment mechanism of the present invention;

[0017] Figure 7 This is a schematic diagram of the disassembled structure of the adjustment mechanism of the present invention;

[0018] Figure 8 This is a schematic diagram of the connection structure between the target sensor and the two telescopic plates of the present invention. Detailed Implementation

[0019] The present invention will now be described in further detail.

[0020] like Figure 1-8As shown, the present invention provides a target-type flow meter with adjustable monitoring angle, including a flow meter mechanism 1 and a monitoring mechanism 2 disposed below the flow meter mechanism 1. Both ends of the monitoring mechanism 2 are fixedly connected to connection mechanisms 3 for connecting to external mechanisms. The flow meter mechanism 1 includes a detection box 101, with a vertically arranged hollow outer tube 102 fixedly connected to the bottom of the detection box 101. A horizontally arranged monitoring outer tube 202 is fixedly attached to the bottom end of the hollow outer tube 102. The monitoring mechanism 2 includes a monitoring outer tube 202 through which fluid flows. The flow meter mechanism 1 is provided with a bent connecting rod that extends radially from top to bottom through the monitoring outer tube 202 into the monitoring outer tube 202. The bent connecting rod includes a vertical section 103 located inside the hollow outer tube 102 and a transverse section 404 located inside the monitoring outer tube 202. The transverse section 404 is arranged axially along the monitoring outer tube 202 and fixed to the bottom of the vertical section 103. A target sensor 401 electrically connected to the flow meter mechanism 1 is provided inside the monitoring outer tube 202. The front of the target sensor 401 is opposite to the direction of the incoming flow. The target sensor 401 is disc-shaped, and the disc surface is perpendicular to the axis of the monitoring outer tube 202. The target sensor 401 is located at the axial center of the monitoring outer tube 202. The monitoring mechanism 2 is provided with an adjustment mechanism 4 for adjusting the orientation of the disc surface of the target sensor 401. The connecting mechanism 3 includes a front ring 302 and a rear ring 301 fixed at both ends of the monitoring outer tube 202, and a front connector 303 and a rear connector 304 respectively provided on the front ring 302 and the rear ring 301 for connecting the monitoring outer tube 202 to the external mechanism.

[0021] The adjustment mechanism 4 includes a support member 419 fixed to the center of the back of the target sensor 401, and a support groove 424 located at the end of the transverse section 404 near the target sensor for movably fixing the support member 419 so that the target sensor 401 can move and stand in the monitoring outer tube 202 with the support member 419 as the fulcrum. The support member 419 is a sphere, and the support groove 424 is a circular groove for accommodating the sphere. The opening of the groove faces the back of the target sensor 401 to better support the sphere. A transverse telescopic plate 422 and a vertical telescopic plate 420 are hinged to the bottom and side of the back of the target sensor 401 and are perpendicular to the back of the target sensor 401, respectively. The transverse telescopic plate 422 and the vertical telescopic plate 420 are respectively provided with a fixed end and a telescopic end. The telescopic end can extend and retract in the plane of the telescopic plate relative to the fixed end. The fixed end is hinged to the target sensor 401. The telescopic end is fixedly connected to the rotation mechanism to drive the transverse telescopic plate 422 and the vertical telescopic plate 420 to rotate, respectively. The telescopic ends of the horizontal telescopic plate 422 and the vertical telescopic plate 420 are respectively fixed with connecting rods. A pair of first limiting rings 423 are passed through both ends of the connecting rod of the horizontal telescopic plate 422, and a pair of second limiting rings 421 are passed through both ends of the connecting rod of the vertical telescopic plate 420. The tops of the vertical rotating shaft 405 and the horizontal rotating shaft 411 are respectively fixed between the pair of limiting rings of the connecting rod, so that the vertical rotating shaft 405 and the horizontal rotating shaft 411 are respectively fixedly connected to the telescopic ends. The horizontal telescopic plate 422 or the vertical telescopic plate 420 rotates as a whole, thereby driving the target sensor 401 to swing left and right or pitch so that the fluid flow direction is always perpendicular to the front of the target sensor 401. An internal air pressure sensing ring 201 is connected inside one end of the monitoring outer tube 202. The internal air pressure sensing ring 201 is electrically connected to the rotating mechanism through a converter, thereby driving the rotating mechanism to rotate accordingly.

[0022] like Figure 6-8As shown, the rotating mechanism in this embodiment includes a first rotating mechanism and a second rotating mechanism. The first rotating mechanism includes a vertical rotating shaft 405, one end of which is fixedly connected to the telescopic end of the horizontal telescopic plate 422, and the other end of which passes vertically through the side wall of the monitoring outer tube 202. A first driven gear 409 is fixed to the bottom end of the vertical rotating shaft 405, and the first driven gear 409 meshes with a first driving gear 408 connected to the output shaft of the first motor 407. The second rotating mechanism includes a horizontal rotating shaft 411, one end of which is fixedly connected to the telescopic end of the vertical telescopic plate 420, and the other end of which passes horizontally through the side wall of the monitoring outer tube 202. A second driven gear 413 is fixed to the horizontal rotating shaft 411, and the second driven gear 413 meshes with a second driving gear 415 connected to the output shaft of the second motor 414. The extension lines of the vertical rotating shaft 405 and the horizontal rotating shaft 411 are perpendicular to each other and pass through the center of the sphere, respectively. The monitoring outer tube 202 has a first through hole 205 and a second through hole 206 at its bottom and side, respectively. A vertical rotating shaft 405 and a horizontal rotating shaft 411 extend outwards through the first through hole 205 and the second through hole 206, respectively. Sealing rings for sealing are provided at the first through hole 205 and the second through hole 206, respectively. A first motor 407 and a second motor 414 are fixed to the monitoring outer tube 202 via a first fixing plate 406 and a second fixing plate 416, respectively. The first motor 407 and the second motor 414 are electrically connected to the converter. The converter in this embodiment includes a first converter 208 located at the bottom of the inner pressure sensing ring 201 and a second converter 207 located on the side of the inner pressure sensing ring 201; the first motor 407 is electrically connected to the first converter 208, and the second motor 414 is electrically connected to the second converter 207. The monitoring outer pipe 202 detects the flow direction of the flue gas through the inner air pressure sensing ring 201, and then transmits it to the first converter 208 and the second converter 207. After receiving the pressure signal, the first converter 208 and the second converter 207 convert it into an electrical signal and transmit the electrical signal to the first motor 407 and the second motor 414 respectively, driving the first motor 407 and the second motor 414 to rotate. The rotation of the first motor 407 can cause the target sensor 401 to swing left and right, and the rotation of the second motor 414 can cause the target sensor 401 to swing up and down, that is, swing back and forth.

[0023] like Figure 6 , 7As shown, the back of the target sensor 401 is also provided with a reset mechanism for resetting the target sensor 401 after swinging. The reset mechanism includes a fixed cylinder 402 fixed to the monitoring outer tube 202, and a spring 417 connected inside the fixed cylinder 402. The other end of the spring 417 abuts against the back of the target sensor 401. The monitoring outer tube 202 has a first fixed rod 203 and a second fixed rod 204 that are perpendicularly connected to each other in the radial plane. The end of the lateral rod of the bent connecting rod away from the target sensor 401 is fixed to the intersection of the first fixed rod 203 and the second fixed rod 204. The two ends of the first fixed rod 203 and the second fixed rod 204 are respectively fixed to the inner sidewall of the monitoring outer tube 202. A fixed cylinder 402 is fixed at each end of the first fixed rod 203 and the second fixed rod 204. After the target sensor 401 swings around the sphere, the four springs 417 cause the target sensor 401 to return to its original position.

Claims

1. A monitoring angle-adjustable target flowmeter, comprising a flowmeter mechanism (1) and a monitoring mechanism (2) arranged below the flowmeter mechanism, the monitoring mechanism (2) comprising a monitoring outer tube (202) for fluid flow, and a target sensor (401) arranged in the monitoring outer tube (202) and electrically connected with the flowmeter mechanism (1); characterized in that, The monitoring mechanism (2) is provided with an adjusting mechanism (4) for adjusting the angle between the front of the target sensor (401) and the fluid flow direction, the adjusting mechanism (4) includes a support (419) fixed on the back of the target sensor (401), a support groove (424) in the monitoring outer tube (202) for movably fixing the support (419) so that the target sensor (401) is movably supported in the monitoring outer tube (202) with the support (419) as the fulcrum, a horizontal telescopic plate (422) and a vertical telescopic plate (420) hinged to the bottom and side edge of the back of the target sensor (401) and perpendicular to the back of the target sensor (401) respectively; the horizontal telescopic plate (422) and the vertical telescopic plate (420) are respectively provided with a fixed end hinged to the target sensor (401) and a telescopic end opposite to the fixed end; the telescopic ends are respectively fixedly connected with a rotating mechanism for driving the horizontal telescopic plate (422) and the vertical telescopic plate (420) to rotate as a whole; the overall rotation of the horizontal telescopic plate (422) or the vertical telescopic plate (420) drives the target sensor (401) to swing left and right or pitch to make the fluid flow direction always perpendicular to the front of the target sensor (401); an inner air pressure sensing ring (201) is connected in the monitoring outer tube (202), and the inner air pressure sensing ring (201) is electrically connected with the rotating mechanism through a converter to drive the rotating mechanism to rotate correspondingly.

2. The monitoring angle adjustable target flowmeter of claim 1, wherein, The rotating mechanism includes a first rotating mechanism and a second rotating mechanism; the first rotating mechanism includes a vertical rotating shaft (405) fixedly connected at one end with the telescopic end of the horizontal telescopic plate (422) and vertically penetrating through the side wall of the monitoring outer tube (202), and the vertical rotating shaft (405) is fixedly connected with a first driven gear (409), and the first driven gear (409) is engaged with a first driving gear (408) connected with the output shaft of a first motor (407); the second rotating mechanism includes a horizontal rotating shaft (411) fixedly connected at one end with the telescopic end of the vertical telescopic plate (420) and horizontally penetrating through the side wall of the monitoring outer tube (202), and the horizontal rotating shaft (411) is fixedly connected with a second driven gear (413), and the second driven gear (413) is engaged with a second driving gear (415) connected with the output shaft of a second motor (414).

3. The monitoring angle adjustable target flowmeter of claim 1, wherein, The flow meter mechanism (1) is provided with a bent connecting rod penetrating into the monitoring outer tube (202) along the radial direction, the flow meter mechanism (1) includes a detection box (101) electrically connected with the target sensor (401) and capable of receiving the signal of the target sensor (401), and a hollow outer tube (102) is fixedly arranged at the bottom of the detection box (101), and the monitoring outer tube (202) is fixed to the bottom end of the hollow outer tube (102); the bent connecting rod includes a vertical section (103) located in the hollow outer tube (102) and a horizontal section (404) located in the monitoring outer tube (202), and the horizontal section (404) is arranged along the axial direction of the monitoring outer tube (202) and fixed to the bottom of the vertical section (103).

4. The monitoring angle adjustable target flowmeter of claim 3, wherein, The support groove (424) is located at the end of the transverse section (404) close to the target sensor (401); the support (419) is a spherical ball, the support groove (424) is a circular groove with an opening facing the back of the target sensor (401); the extension lines of the rotation axes of the rotation mechanism are perpendicular to each other and pass through the centers of the spherical balls respectively.

5. The monitoring angle adjustable target flowmeter of claim 1, wherein, The back of the target sensor (401) is provided with a reset mechanism for resetting the target sensor (401).

6. The monitoring angle adjustable target flowmeter of claim 5, wherein, The reset mechanism comprises a fixed cylinder (402) fixed on the monitoring outer tube (202) and a spring (417) fixed at one end on the fixed cylinder (402) and abutting against the back of the target sensor (401) at the other end.

7. The monitoring angle adjustable target flowmeter of claim 6, wherein, The first fixed rod (203) and the second fixed rod (204) are arranged in the radial plane in the monitoring outer tube (202) and are connected to each other; the two ends of each fixed rod are fixed on the inner side wall of the monitoring outer tube (202); one fixed cylinder (402) is fixed at each end of each fixed rod.

8. The monitoring angle adjustable target flowmeter of claim 2, wherein, The vertical rotation axis (405) and the transverse rotation axis (411) are provided with sealing rings for sealing at the positions penetrating the side wall of the monitoring outer tube (202).

9. The monitoring angle adjustable target flowmeter of claim 2, wherein, The first motor (407) is electrically connected with the first converter (208) located at the bottom of the inner air pressure sensing ring, and the second motor (414) is electrically connected with the second converter (207) located at the side of the inner air pressure sensing ring.

10. The monitoring angle adjustable target flowmeter of claim 1, wherein, The two ends of the monitoring outer tube (202) are fixedly connected with a connecting mechanism (3) for connecting with an external mechanism.

Images