Ultrasonic heat meter

Abstract

The utility model discloses an ultrasonic heat meter, and relates to the technical field of heat meters. The ultrasonic heat meter comprises a mounting pipeline, flanges are arranged on the left side and the right side of the mounting pipeline, an input pipe and an output pipe are fixedly connected to the surfaces of the opposite sides of the two flanges, the outer surface of the mounting pipeline is sleeved with a mounting ring, and a filter column is fixedly connected to the inner wall of the mounting pipeline. A filtering groove extending out of the right side surface of the filtering column is formed in the left side surface of the filtering column, a first filtering net is fixedly connected to the inner wall of the filtering groove, and a dirt storage groove is formed in the right side surface of the filtering column; the first filter screen can be cleaned through cooperation of the driving assembly and the S-shaped cleaning rod, and dirt is pushed into the dirt storage tank, so that the work of cleaning the first filter screen is simpler and more convenient, the frequency of disassembly and cleaning is reduced, and the interior of the dirt storage tank can be cleaned after a long time.

Description

Technical Field

[0001] The utility model relates to the technical field of heat meters, in particular to an ultrasonic heat meter. Background Art

[0002] Ultrasonic heat meters are instruments that measure flow and display the heat energy released or absorbed by water flowing through a heat exchange system by ultrasonic methods. It uses two sensors to measure physical quantities - the flow of heat carrier and the temperature of the inlet and outlet, and then compensates and integrates density and enthalpy values ​​to obtain the calorific value. It is a mechatronics product based on a microprocessor and high-precision sensors. Compared with household meters that have been widely used in the construction industry in the past - water meters, electricity meters, and gas meters, it has a more complex design and higher technical content.

[0003] With the gradual promotion of the concept of household metering, in order to better carry out household metering work, more and more heating companies have chosen ultrasonic heat meters. Ultrasonic heat meters are generally installed in the heat exchange loop of the centralized heating system to measure the energy absorbed or released in the heat exchange loop with cold and hot water as carriers. Due to the presence of certain impurities in the water flow, some impurities will adhere to the inner wall of the pipe or the measuring device after long-term use, affecting the measurement accuracy and accelerating the aging of the equipment. At the same time, when there are more impurities attached to the inner wall of the measuring pipe, it will also reduce the incident angle of the ultrasonic wave, thereby causing problems such as a decrease in measurement accuracy. At the same time, impurities attached to the inner wall of the pipe will also narrow the pipe diameter, thereby reducing the water flow. In the prior art, the filter needs to be cleaned frequently to avoid the filter being blocked and causing low water flow. However, the filter needs to be removed and the pipeline needs to be suspended during cleaning, which increases the maintenance cost and significantly increases the workload of the staff. In view of this, we propose an ultrasonic heat meter. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide an ultrasonic heat meter that can solve the problem of decreased measurement accuracy and reduced flow rate caused by impurities adhering to the inner wall of the pipeline.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ultrasonic heat meter, comprising an installation pipe, flanges are provided on the left and right sides of the installation pipe, the surfaces on the opposite sides of the two flanges are fixedly connected with an input pipe and an output pipe, a mounting ring is sleeved on the outer surface of the installation pipe, a filter column is fixedly connected to the inner wall of the installation pipe, a filter groove extending from the right side surface of the filter column is provided on the left side surface, a first filter screen is fixedly connected to the inner wall of the filter groove, a dirt storage groove is provided on the right side surface of the filter column, a drainage groove communicating with the inside of the dirt storage groove is provided on the left side surface of the filter column, a driving ring is rotatably connected to the inner wall of the driving ring, an S-shaped cleaning rod is fixedly connected to the inner wall of the driving ring, first sealing rings are fixedly connected to the left and right side surfaces of the driving ring, and a driving assembly is provided on the installation ring.

[0006] Preferably, the driving assembly includes a knob, which is rotatably connected to the left surface of the mounting ring, and a driving shaft is fixedly connected to the right surface of the knob, and the driving shaft rotatably penetrates into the interior of the mounting ring.

[0007] Preferably, the outer surface of the drive ring is provided with teeth, the outer surface of the drive ring extends into the interior of the mounting ring, and the right end of the drive shaft is fixedly connected with a gear, which is engaged with the teeth.

[0008] Preferably, the left side surface of the S-shaped cleaning rod is in contact with the first filter screen.

[0009] Preferably, the outer surface of the installation pipe is fixedly connected with a mounting platform, the upper surface of the mounting platform is provided with a heat meter body, and the upper surface of the heat meter body is rotatably connected with a sealing cover.

[0010] Preferably, a second sealing ring is fixedly connected to the lower surface of the sealing cover, and a sealing groove matched with the second sealing ring is formed on the upper surface of the heat meter body.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The ultrasonic heat meter, when operating normally, allows hot water to enter the interior of the installation pipe through the input pipe, be measured after being filtered through the first filter screen, and be output through the output pipe. When dirt is attached to the first filter screen due to long-term use, the drive ring is driven to rotate by the drive assembly on the installation ring, and the S-shaped cleaning rod is driven to rotate after the drive ring rotates. After the S-shaped cleaning rod rotates, the dirt on the first filter screen is scraped out, and the scraped dirt is pushed to the surroundings of the first filter screen by using its S shape. The scraped dirt enters the interior of the dirt storage tank, and the water flow is discharged through the drainage tank. Through the above structure, when dirt is attached to the first filter screen due to long-term use, the first filter screen can be cleaned by the drive assembly in cooperation with the S-shaped cleaning rod, and the dirt is pushed to the interior of the dirt storage tank, making the work of cleaning the first filter screen simpler and more convenient, reducing the frequency of disassembly and cleaning, and the interior of the dirt storage tank can be cleaned after a long time.

[0013] The ultrasonic heat meter drives the driving shaft to rotate by a knob, and the driving shaft drives the gear to rotate synchronously after the driving shaft rotates. After the gear rotates, it cooperates with the teeth to drive the driving ring to rotate, thereby completing the cleaning. At the same time, when protecting the heat meter body, after the sealing cover is closed, the second sealing ring and the sealing groove cooperate to improve the sealing of the heat meter body dial. Through the above structure, not only can the cleaning be made more convenient, but the sealing of the dial can also be improved through the cooperation of the second sealing ring and the sealing groove, thereby preventing impurities in the outside air or objects such as rainwater from contacting the dial, thereby causing aging or corrosion of the dial, and improving the service life of the dial. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 This is a schematic diagram of the structure of an ultrasonic heat meter of the utility model;

[0016] Figure 2 This is a cross-sectional schematic diagram of the installation pipeline of the utility model;

[0017] Figure 3 This is a schematic diagram of the drainage trough of the utility model;

[0018] Figure 4 This is a schematic diagram of the knob of the utility model;

[0019] Figure 5 This is a schematic diagram of the drive assembly of the utility model.

[0020] Figure numerals: 1. Installation pipe; 2. Flange; 3. Input pipe; 4. Output pipe; 5. Installation ring; 6. Filter column; 7. Filter tank; 8. First filter screen; 9. Sewage tank; 10. Drain tank; 11. Drive ring; 12. First sealing ring; 13. Knob; 14. Drive shaft; 15. Teeth; 16. Gear; 17. S-shaped cleaning rod; 18. Installation platform; 19. Heat meter body; 20. Sealing cover; 21. Second sealing ring; 22. Sealing tank. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0022] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0024] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0025] See also Figure 1-5The utility model provides a technical solution: an ultrasonic heat meter comprises an installation pipe 1, flanges 2 are arranged on the left and right sides of the installation pipe 1, and the surfaces on the opposite sides of the two flanges 2 are fixedly connected with an input pipe 3 and an output pipe 4, a mounting ring 5 is sleeved on the outer surface of the installation pipe 1, a filter column 6 is fixedly connected to the inner wall of the installation pipe 1, a filter groove 7 extending from the right side surface of the filter column 6 is provided on the left side surface, a first filter screen 8 is fixedly connected to the inner wall of the filter groove 7, a dirt storage groove 9 is provided on the right side surface of the filter column 6, and a drainage groove 10 communicating with the inside of the dirt storage groove 9 is provided on the left side surface of the filter column 6, a driving ring 11 is rotatably connected to the inner wall of the installation pipe 1, an S-shaped cleaning rod 17 is fixedly connected to the inner wall of the driving ring 11, and the left and right side surfaces of the driving ring 11 are respectively fixedly connected with first sealing rings 12, and a driving assembly is provided on the installation ring 5. During normal operation, hot water enters the installation pipe through the input pipe 3. 1, is filtered by the first filter screen 8, measured and output through the output pipe 4. When the first filter screen 8 is attached with dirt due to long-term use, the driving ring 11 is driven to rotate by the driving assembly on the mounting ring 5. After the driving ring 11 rotates, the S-shaped cleaning rod 17 is driven to rotate. After the S-shaped cleaning rod 17 rotates, the dirt on the first filter screen 8 is scraped out, and the scraped dirt is pushed to the surrounding of the first filter screen 8 by using its S shape. The scraped dirt enters the interior of the dirt storage tank 9, and the water flow is discharged through the drainage groove 10. Through the above structure, when the first filter screen 8 is attached with dirt due to long-term use, the first filter screen 8 can be cleaned by the driving assembly in cooperation with the S-shaped cleaning rod 17, and the dirt is pushed to the interior of the dirt storage tank 9, making the work of cleaning the first filter screen 8 simpler and more convenient, reducing the frequency of disassembly and cleaning, and the interior of the dirt storage tank 9 can be cleaned after a long time.

[0026] Furthermore, the driving assembly includes a knob 13, which is rotatably connected to the left side surface of the mounting ring 5, and a driving shaft 14 is fixedly connected to the right side surface of the knob 13. The driving shaft 14 rotates and penetrates into the interior of the mounting ring 5. The outer surface of the driving ring 11 is provided with teeth 15, and the outer surface of the driving ring 11 extends into the interior of the mounting ring 5. The right end of the driving shaft 14 is fixedly connected with a gear 16, and the gear 16 is engaged with the teeth 15. The left side surface of the S-shaped cleaning rod 17 contacts the first filter screen 8. The outer surface of the mounting pipe 1 is fixedly connected with a mounting platform 18, and the upper surface of the mounting platform 18 is provided with a heat meter body 19. The upper surface of the heat meter body 19 is rotatably connected with a sealing cover 20, and the lower surface of the sealing cover 20 is fixedly connected with a second sealing ring 21. The upper surface of the heat meter body 19 is opened A sealing groove 22 matched with the second sealing ring 21 is provided. The second sealing ring 21 is made of flexible rubber. The knob 13 drives the driving shaft 14 to rotate. After the driving shaft 14 rotates, the gear 16 is synchronously driven to rotate. After the gear 16 rotates, it cooperates with the teeth 15 to drive the driving ring 11 to rotate, thereby completing the cleaning. At the same time, when protecting the heat meter body 19, after the sealing cover 20 is closed, the sealing performance of the dial of the heat meter body 19 is improved by the cooperation between the second sealing ring 21 and the sealing groove 22. Through the above structure, not only can the cleaning be made more convenient, but the sealing performance of the dial can also be improved by the cooperation between the second sealing ring 21 and the sealing groove 22, thereby preventing impurities in the outside air or objects such as rainwater from contacting the dial, thereby causing aging or corrosion of the dial, and improving the service life of the dial.

[0027] Working principle: During normal operation, hot water enters the interior of the installation pipe 1 through the input pipe 3, is measured after being filtered by the first filter screen 8, and is output through the output pipe 4. When the first filter screen 8 is attached with dirt due to long-term use, the driving ring 11 is driven to rotate by the driving assembly on the installation ring 5. After the driving ring 11 rotates, the S-shaped cleaning rod 17 is driven to rotate. After the S-shaped cleaning rod 17 rotates, the dirt on the first filter screen 8 is scraped out, and the scraped dirt is pushed to the surroundings of the first filter screen 8 by its S shape. The scraped dirt enters the interior of the dirt storage tank 9, and the water flow is discharged through the drainage tank 10. The driving shaft 14 is driven to rotate by the knob 13. After the driving shaft 14 rotates, the gear 16 is driven to rotate synchronously. After the gear 16 rotates, it cooperates with the teeth 15 to drive the driving ring 11 to rotate, thereby completing the cleaning. At the same time, when protecting the heat meter body 19, after the sealing cover 20 is closed, the second sealing ring 21 and the sealing groove 22 cooperate to improve the sealing of the dial of the heat meter body 19.

[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An ultrasonic heat meter, comprising a mounting pipe (1), characterized in that: The installation pipe (1) is provided with flanges (2) on both left and right sides, and the surfaces of the two flanges (2) on opposite sides are fixedly connected to an input pipe (3) and an output pipe (4). The outer surface of the installation pipe (1) is sleeved with a mounting ring (5), and the inner wall of the installation pipe (1) is fixedly connected to a filter column (6). The left side surface of the filter column (6) is provided with a filter groove (7) extending from the right side surface thereof, and the inner wall of the filter groove (7) is fixedly connected to a first filter screen (8). The right side surface of the filter column (6) is provided with a sewage storage groove (9), and the left side surface of the filter column (6) is provided with a drainage groove (10) communicating with the inside of the sewage storage groove (9). The inner wall of the installation pipe (1) is rotatably connected to a drive ring (11), and the inner wall of the drive ring (11) is fixedly connected to an S-shaped cleaning rod (17). The left and right side surfaces of the drive ring (11) are respectively fixedly connected to first sealing rings (12), and a drive assembly is provided on the installation ring (5).

2. An ultrasonic heat meter according to claim 1, characterized in that: The driving assembly comprises a knob (13), the knob (13) being rotatably connected to the left surface of the mounting ring (5), and a driving shaft (14) being fixedly connected to the right surface of the knob (13), and the driving shaft (14) being rotatably penetrated into the interior of the mounting ring (5).

3. An ultrasonic heat meter according to claim 2, characterized in that: The outer surface of the drive ring (11) is provided with teeth (15), the outer surface of the drive ring (11) extends into the interior of the mounting ring (5), and the right end of the drive shaft (14) is fixedly connected with a gear (16), and the gear (16) is clamped with the teeth (15).

4. An ultrasonic heat meter according to claim 1, characterized in that: The left side surface of the S-shaped cleaning rod (17) is in contact with the first filter screen (8).

5. An ultrasonic heat meter according to claim 1, characterized in that: The outer surface of the installation pipe (1) is fixedly connected to a mounting platform (18), the upper surface of the mounting platform (18) is provided with a heat meter body (19), and the upper surface of the heat meter body (19) is rotatably connected to a sealing cover (20).

6. An ultrasonic heat meter according to claim 5, characterized in that: A second sealing ring (21) is fixedly connected to the lower surface of the sealing cover (20), and a sealing groove (22) matching the second sealing ring (21) is provided on the upper surface of the heat meter body (19).

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