Ultrasonic flowmeter with isolation structure

Abstract

The utility model relates to the technical field of ultrasonic flowmeters, in particular to an ultrasonic flowmeter with an isolation structure. According to the technical scheme, the device comprises a driven ring, a connector, an isolation hood and a pipe body, the driven ring is rotationally installed at one end of the pipe body, a scraper is fixed to the inner wall of the driven ring, the working face of the scraper makes contact with the inner wall of the pipe body, a flange plate is arranged at the other end of the pipe body, and a flange plate is also rotationally arranged on the other face of the driven ring. According to the ultrasonic flowmeter cleaning device, through cooperation of structures, overall disassembly is not needed in the cleaning process, and the purpose of automatically cleaning the ultrasonic flowmeter is achieved through the self-rotation action of the scraper.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic flowmeters, in particular to an ultrasonic flowmeter with an isolation structure. Background Art

[0002] An ultrasonic flow meter is a flow meter developed based on the principle that the propagation speed of ultrasonic waves in a flowing medium is equal to the vector sum of the average flow velocity of the measured medium and the speed of the sound wave in a stationary medium. It is mainly composed of a transducer and a converter, and has different types such as the Doppler method, velocity difference method, beam deviation method, noise method and correlation method.

[0003] Existing ultrasonic flowmeters generally have impurities in the liquid medium deposited and adhered to the inside of the pipe when used for too long, thereby blocking the ultrasonic probe sensor. When there are too many impurities on the probe, the measurement of the ultrasonic flowmeter will be affected.

[0004] However, the existing ultrasonic flowmeter needs to be completely disassembled for cleaning and cannot perform self-cleaning operations. Frequent disassembly will cause damage to the ultrasonic flowmeter, thus affecting people's use.

[0005] To this end, we propose an ultrasonic flowmeter with an isolation structure to solve the existing problems. Utility Model Content

[0006] The utility model aims to solve the problems existing in the background technology and proposes an ultrasonic flow meter with an isolation structure.

[0007] To achieve the above object, the utility model provides the following technical solution: an ultrasonic flowmeter with an isolation structure, comprising:

[0008] A driven ring, a joint, an isolation cover and a tube body, wherein a driven ring is rotatably mounted on one end of the tube body, a scraper is fixed to the inner wall of the driven ring, and the working surface of the scraper contacts the inner wall of the tube body, a flange is provided at the other end of the tube body, and a flange is also rotatably provided on the other side of the driven ring.

[0009] Preferably, an upper sensor is embedded and installed at the top end of one side of the inner wall of the tube body, and a lower sensor is embedded and installed at the bottom end of the other side of the inner wall of the tube body;

[0010] Two isolation covers are embedded inside the tube body, and the two isolation covers isolate the upper sensor and the lower sensor from the inside of the tube body;

[0011] The outer arc surface of the isolation cover is flush with the inner wall arc surface of the tube body.

[0012] Preferably, a host is mounted on the outer wall of the upper surface of the tube body by bolts, and the host is electrically connected to the upper sensor and the lower sensor by signal cables respectively.

[0013] Preferably, a gear ring is fixed to the outer wall of the driven ring;

[0014] The outer wall of the tube body is mounted on a chassis by bolts, a motor is arranged in the chassis, and a gear is installed at the output end of the motor;

[0015] The gear and the ring gear are meshed with each other.

[0016] Preferably, mounting holes are provided on the flange, and positions of the mounting holes are distributed in a ring array on the flange.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] During use, the ultrasonic flowmeter with an isolation structure of the utility model is fixed at a specified position by a Farah disk. During operation, two sensors detect the fluid information inside the pipe body and transmit it to the ultrasonic flowmeter host. The flow rate of the fluid is monitored based on the principle that the propagation speed of the ultrasonic wave in the flowing medium is equal to the vector sum of the average flow velocity of the measured medium and the speed of the sound wave in the stationary medium.

[0019] When it is necessary to clean the impurities inside the pipe body, the external power source controls the motor in the chassis to drive the gear to rotate. Through the meshing action between the gear and the ring gear, the ring gear drives the driven ring to rotate. Under the rotation action, the scraper rotates along the inner wall of the pipe body, thereby scraping off the impurities inside the pipe body and on the surface of the isolation cover, completing the self-cleaning operation of the ultrasonic flow meter;

[0020] The utility model does not need to be disassembled as a whole during the cleaning process, and the purpose of automatically cleaning the ultrasonic flow meter is achieved through the self-rotation action of the scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0022] Figure 2 It is a side view structural schematic diagram of the utility model;

[0023] Figure 3 This is a schematic diagram of the scraper installation structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the scraper installation structure of the utility model.

[0025] Reference numerals:

[0026] 1. Flange; 2. Driven ring; 3. Ring gear; 4. Gear; 5. Mounting hole; 6. Chassis; 7. Connector; 8. Upper sensor; 9. Isolation cover; 10. Lower sensor; 11. Tube body; 12. Scraper; 13. Main machine. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Embodiment 1

[0029] like Figure 1-Figure 4 As shown, the ultrasonic flowmeter with isolation structure proposed by the utility model includes:

[0030] A driven ring 2, a joint 7, an isolation cover 9 and a tube body 11, one end of the tube body 11 is rotatably mounted with the driven ring 2, a scraper 12 is fixed to the inner wall of the driven ring 2, the working surface of the scraper 12 contacts the inner wall of the tube body 11, the other end of the tube body 11 is provided with a flange 1, and the other side of the driven ring 2 is also rotatably provided with a flange 1.

[0031] Based on Example 1:

[0032] When it is necessary to clean the impurities inside the tube body 11, the external power source controls the motor in the chassis 6 to drive the gear 4 to rotate. Through the meshing action between the gear 4 and the ring gear 3, the ring gear 3 drives the driven ring 2 to rotate. Under the rotation action, the scraper 12 rotates along the inner wall of the tube body 11, thereby scraping off the impurities inside the tube body 11 and on the surface of the isolation cover 9, completing the self-cleaning operation of the ultrasonic flow meter.

[0033] Embodiment 2

[0034] like Figure 1-Figure 4 As shown, the ultrasonic flowmeter with isolation structure proposed by the utility model, compared with the first embodiment, this embodiment also includes:

[0035] An upper sensor 8 is embedded and installed at the top end of one side of the inner wall of the tube body 11, and a lower sensor 10 is embedded and installed at the bottom end of the other side of the inner wall of the tube body 11;

[0036] Two isolation covers 9 are embedded inside the tube body 11, and the two isolation covers 9 isolate the upper sensor 8 and the lower sensor 10 from the inside of the tube body 11;

[0037] The outer arc surface of the isolation cover 9 is flush with the inner wall arc surface of the tube body 11 .

[0038] The sensor and the internal environment of the tube body 11 are isolated from each other by the design of the isolation cover 9 .

[0039] A host 13 is mounted on the outer wall of the upper surface of the tube body 11 by means of bolts. The host 13 is electrically connected to the upper sensor 8 and the lower sensor 10 by means of signal cables.

[0040] When working, the two sensors detect the fluid information inside the tube body 11 and transmit it to the ultrasonic flow meter host 13, and monitor the fluid flow based on the principle that the propagation speed of ultrasound in the flowing medium is equal to the vector sum of the average flow velocity of the measured medium and the speed of the sound wave in the stationary medium.

[0041] A gear ring 3 is fixed to the outer wall of the driven ring 2;

[0042] The outer wall of the tube body 11 is fixed with a chassis 6 by bolts, a motor is arranged in the chassis 6, and a gear 4 is installed at the output end of the motor;

[0043] The gear 4 and the ring gear 3 mesh with each other.

[0044] The gear 4 is driven to rotate, and the meshing action between the gear 4 and the gear ring 3 causes the gear ring 3 to drive the driven ring 2 to rotate. Under the rotation action, the scraper 12 is driven to rotate along the inner wall of the tube body 11 .

[0045] The flange 1 is provided with mounting holes 5 , and the positions of the mounting holes 5 are distributed in a ring array on the flange 1 .

[0046] The device is fixed at a specified position by a Ferrule.

[0047] It should be noted that the upper sensor 8, the lower sensor 10 and the main unit 13 are the basic components of the ultrasonic flow meter, and their structure is an existing mature technology. Their working principle and internal structure are known to technicians in the relevant technical field. The utility model only utilizes their functions and does not improve their internal structure. Therefore, they are not described in detail here, and technicians in this field can make any optional adjustments according to their needs or convenience.

[0048] The gear 4 of the present invention also needs to be provided with a power device to enable it to work normally, and as is well known to those skilled in the art, the provision of the power is commonplace, and it all belongs to conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selection according to their needs or convenience.

[0049] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

[0050] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An ultrasonic flow meter with an isolation structure, comprising a driven ring (2), a joint (7), an isolation cover (9) and a pipe body (11), Features: A driven ring (2) is rotatably mounted on one end of the tube body (11), a scraper (12) is fixed on the inner wall of the driven ring (2), and a working surface of the scraper (12) contacts the inner wall of the tube body (11). A flange (1) is provided at the other end of the tube body (11), and a flange (1) is also rotatably mounted on the other side of the driven ring (2).

2. The ultrasonic flowmeter with isolation structure according to claim 1, Features: An upper sensor (8) is inlaid and installed at the top end of one side of the inner wall of the tube body (11), and a lower sensor (10) is inlaid and installed at the bottom end of the other side of the inner wall of the tube body (11); Two isolation covers (9) are embedded inside the tube body (11), and the two isolation covers (9) isolate the upper sensor (8) and the lower sensor (10) from the inside of the tube body (11); The outer arc surface of the isolation cover (9) is flush with the inner wall arc surface of the tube body (11).

3. The ultrasonic flowmeter with isolation structure according to claim 1, Features: A main unit (13) is mounted on the outer wall of the upper surface of the tube body (11) by means of bolts, and the main unit (13) is electrically connected to the upper sensor (8) and the lower sensor (10) respectively by means of signal cables.

4. The ultrasonic flowmeter with isolation structure according to claim 1, Features: A gear ring (3) is fixed on the outer wall of the driven ring (2); The outer wall of the tube body (11) is mounted on a housing (6) by means of bolts, a motor is arranged inside the housing (6), and a gear (4) is mounted on the output end of the motor; The gear (4) and the gear ring (3) are meshed with each other.

5. The ultrasonic flowmeter with isolation structure according to claim 1, Features: The flange (1) is provided with mounting holes (5), and the positions of the mounting holes (5) are distributed in a ring array on the flange (1).

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