Non-full pipe liquid flow measuring device

Abstract

The utility model relates to the field of pipeline flow measurement, and discloses a non-full pipe liquid flow measuring device which comprises a pipeline, a flange is fixedly connected to the front surface of the pipeline, an ultrasonic liquid level meter is arranged on the upper surface of the flange, a quick release assembly is arranged on the upper surface of the pipeline, a measuring assembly is arranged in the pipeline, and the measuring assembly is connected with the flange. The measuring assembly comprises a supporting plate, the front surface of the supporting plate is slidably connected with a hollow pipe, the inner wall of the rear side of the hollow pipe is provided with a pressure sensor, the front surface of the hollow pipe penetrates through and is slidably connected with a round block, and the rear surface of the round block is fixedly connected with a rubber sheet. According to the utility model, through the cooperation of the supporting plate, the rubber pad, the pulling plate, the round rod, the sliding plate, the inserting block and the inserting groove, the position of the hollow pipe can be adjusted according to the diameter of the pipeline, the device can be fully utilized, the measured data can be more accurate, and the practicability of the device is enhanced.

Description

Technical Field

[0001] The utility model relates to the field of pipeline flow measurement, in particular to a non-full pipe liquid flow measurement device. Background Art

[0002] A non-full pipe flow meter is a device used to measure the flow rate of fluid in a pipeline. It can accurately measure the flow rate of fluid passing through the pipeline in order to monitor and control the flow rate. Common sewage pipes are not pressurized inside, and the fluid is usually in a non-full pipe state. Non-pressurized pipes can be used for a variety of different applications, including water supply systems, drainage systems, etc. Therefore, when measuring the pipeline flow rate, it is necessary to combine a liquid level meter to measure the liquid level, so as to calculate the actual cross-sectional area of ​​the fluid, and then accurately calculate the flow rate.

[0003] After searching, Chinese patent announcement number: CN219829987U discloses a non-full pipe flow measurement device, including a flow meter, a slide rail is fixedly installed inside the flow meter, the slide rail is vertically arranged, the outer wall of the slide rail is slidably connected to a first slider, a buoyancy plate is fixedly installed on the front side of the first slider, a second infrared rangefinder is fixedly installed on the outer wall of the extrusion block, and an ultrasonic flowmeter is fixedly installed on the lower end of the inner wall of the flowmeter. The utility model proposes a non-full pipe flow measurement device, when the fluid enters the flow meter, the buoyancy plate rises to the horizontal plane of the fluid under the influence of the buoyancy of the fluid, and the distance between the fluid and the pipe wall is measured by the first infrared rangefinder. At the same time, during the rising process of the buoyancy plate, the extrusion block is squeezed by the inner wall of the flowmeter so that the distance between the two extrusion blocks changes continuously, and the flow velocity of the fluid is detected by the ultrasonic flowmeter. Finally, the flow velocity is multiplied by the cross-sectional area of ​​the fluid to calculate the flow rate. This detection device has high detection accuracy.

[0004] Although the device has certain improvements, it still has the following shortcomings. Although the buoyancy plate in the device will rise and fall according to the changes in the water level, the water in the pipe is in a flowing state, which causes the buoyancy plate to be unable to rise and fall in time according to the changes in the water level. There is also the problem of excessive water pressure affecting the movement of the buoyancy plate, which causes the water level measurement to be inaccurate, which affects the subsequent flow calculation and causes the flow data to be inaccurate. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a non-full pipe liquid flow measurement device, which aims to improve the problem in the prior art that the water in the pipeline is in a flowing state, resulting in the buoyancy plate being unable to rise and fall in time according to changes in the water level, and there is also a problem that excessive water pressure affects the movement of the buoyancy plate, which leads to inaccurate water level measurement, which affects the subsequent flow calculation and causes the flow data to be inaccurate.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a non-full pipe liquid flow measuring device, comprising a pipeline, a flange is fixedly connected to the front surface of the pipeline, an ultrasonic liquid level meter is arranged on the upper surface of the flange, a quick-release assembly is arranged on the upper surface of the pipeline, a measuring assembly is arranged inside the pipeline, the measuring assembly comprises a support plate, a hollow tube is slidably connected to the front surface of the support plate, a pressure sensor is arranged on the inner wall of the rear side of the hollow tube, a round block is penetrated and slidably connected to the front surface of the hollow tube, a rubber sheet is fixedly connected to the rear surface of the round block, and a rubber block is connected to the inner wall piston of the hollow tube.

[0007] As a further description of the above technical solution:

[0008] The rubber sheet piston is connected to the inner wall of the hollow tube, and the rear surface of the rubber block contacts the front surface of the pressure sensor.

[0009] As a further description of the above technical solution:

[0010] The quick-release assembly includes a support tube, an end cover is fixedly connected to the upper surface of the support tube, a card slot is opened on the upper surface of the end cover, a card block is inserted into the inner wall of the card slot, a top cover is fixedly connected to the upper surface of the card block, and a buckle slot is opened on the front surface of the top cover.

[0011] As a further description of the above technical solution:

[0012] The support pipe penetrates through and is fixedly connected to the upper surface of the pipeline, and the upper surface of the support plate is fixedly connected to the lower surface of the top cover.

[0013] As a further description of the above technical solution:

[0014] A protrusion is arranged at the bottom end of the front surface of the block, and the protrusion is made of rubber material.

[0015] As a further description of the above technical solution:

[0016] The measuring assembly also includes a pull plate, a round rod is fixedly connected to the front surface of the pull plate, a slide plate is fixedly connected to the front surface of the round rod, an insert block is fixedly connected to the front surface of the slide plate, a slot is provided on the rear surface of the hollow tube, and a rubber pad is fixedly connected to the inner wall of the rear side of the support plate.

[0017] As a further description of the above technical solution:

[0018] The round rod passes through and is slidably connected to the rear surface of the support plate, the slide plate is slidably connected to the inner wall of the support plate, the plug block passes through and is slidably connected to the front surface of the support plate, and the plug blocks are arranged in multiple groups, and the multiple groups of the plug blocks are evenly distributed longitudinally on the front surface of the support plate.

[0019] As a further description of the above technical solution:

[0020] The inserting block is inserted into the inner wall of the slot.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the position of the hollow tube can be adjusted according to the diameter of the pipeline through the cooperation of the support plate, rubber pad, pull plate, round rod, slide plate, plug block and slot, ensuring that the device can be fully utilized. The water pressure at different water levels is measured by pressure sensors at multiple different positions to measure the real-time water level and water flow rate in the pipeline, so that the measurement data can be more accurate and the practicability of the device is enhanced.

[0023] 2. In the utility model, the end cover and the top cover can be quickly and initially fixed through the cooperation of the clamping block, the buckle groove and the clamping groove, and the threaded holes on the top cover and the end cover will be aligned during the initial fixation, which can reduce the time spent on tightening the bolts and installing the top cover, facilitate the installation of the device, and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a front view schematic diagram of the three-dimensional structure of the overall device in the utility model;

[0025] Figure 2 It is a schematic diagram of the disassembly of the three-dimensional structure of the overall device in the utility model;

[0026] Figure 3 It is a schematic cross-sectional diagram of the three-dimensional structure of the support tube, end cover, top cover and clamping block in the utility model;

[0027] Figure 4 It is a schematic cross-sectional diagram of the support plate and hollow tube three-dimensional structure in the utility model.

[0028] Legend:

[0029] 1. Pipeline; 2. Flange; 3. Ultrasonic level meter; 41. Support tube; 42. End cover; 43. Top cover; 44. Block; 401. Buckle slot; 402. Slot; 51. Support plate; 52. Hollow tube; 53. Pressure sensor; 54. Round block; 55. Rubber sheet; 56. Rubber block; 57. Rubber pad; 58. Pull plate; 59. Round rod; 511. Slide plate; 512. Insert block; 501. Slot. DETAILED DESCRIPTION

[0030] 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.

[0031] Reference Figure 1 , Figure 2 , Figure 4 , the utility model provides an embodiment: a non-full pipe liquid flow measurement device, including a pipe 1, most of the water pipes are non-pressure pipes, most of which are non-full pipes. When water flows through, there will be gaps in the pipe. The front surface of the pipe 1 is fixedly connected with a flange 2, and a threaded hole is opened on the flange 2, which can be connected to the pipe with bolts. At the same time, the non-pressure pipe can be used for various different applications, including water supply systems, drainage systems, etc., and an ultrasonic level meter 3 is arranged on the upper surface of the flange 2. The ultrasonic level meter 3 is a prior art and can be implemented by technicians in this field. Since it is a prior art, it will not be described in detail in this case. The ultrasonic level meter 3 can measure the liquid level of the liquid flowing through the pipe 1, and a quick-release component is arranged on the upper surface of the pipe 1. A measuring component is arranged inside the pipe 1, and the measuring component can detect the flow rate of the liquid flowing through the pipe 1, and measure The measuring component can also measure the liquid level. By calculating the liquid level and flow rate, the flow rate of the liquid in the pipeline 1 can be obtained. The measuring component includes a support plate 51. The front surface of the support plate 51 is slidably connected to a hollow tube 52. The hollow tube 52 slides longitudinally. The position of the hollow tube 52 can be adjusted according to the different diameters of the pipeline 1, which can improve the accuracy of flow measurement. A pressure sensor 53 is provided on the inner wall of the rear side of the hollow tube 52. The pressure sensor 53 is a prior art and can be implemented by technicians in this field. Since it is a prior art, it will not be described in detail in this case. The front surface of the hollow tube 52 is penetrated and slidably connected with a round block 54. The rear surface of the round block 54 is fixedly connected with a rubber sheet 55. The round block 54 and the rubber sheet 55 will move synchronously. The inner wall piston of the hollow tube 52 is connected to a rubber block 56, and the interior of the hollow tube 52 is in a sealed state.

[0032] Reference Figure 1 , Figure 2 , Figure 4 The piston of the rubber sheet 55 is connected to the inner wall of the hollow tube 52. When the rubber sheet 55 moves backward, it will squeeze the air inside the hollow tube 52, and the air will push the rubber block 56 to move backward. The rear surface of the rubber block 56 contacts the front surface of the pressure sensor 53. When the rubber block 56 moves backward, it will squeeze the receiving end of the pressure sensor 53, and the pressure sensor 53 will measure the pressure. After the pressure is released, the pressure sensor 53 will recover and push the rubber block 56 to reset.

[0033] Reference Figure 1 - Figure 3 The quick-release assembly includes a support tube 41, an end cover 42 is fixedly connected to the upper surface of the support tube 41, a threaded groove is provided on the end cover 42 for fixing the top cover 43, a card slot 402 is provided on the upper surface of the end cover 42, a card block 44 is inserted into the inner wall of the card slot 402, the shape of the card slot 402 matches the shape of the card block 44, the upper surface of the card block 44 is fixedly connected to the top cover 43, a threaded groove is provided on the top cover 43, tightening the bolts can fix the top cover 43 and the end cover 42, a buckle groove 401 is provided on the front surface of the top cover 43, fingers can buckle in the buckle groove 401, and the top cover 43 is convenient to remove.

[0034] Reference Figure 1 - Figure 3 The support pipe 41 passes through and is fixedly connected to the upper surface of the pipeline 1 , the upper surface of the support plate 51 is fixedly connected to the lower surface of the top cover 43 , and the top cover 43 provides support for the support plate 51 .

[0035] Reference Figure 1 - Figure 3 A protrusion is provided at the bottom end of the front surface of the block 44. The protrusion is made of rubber material. When the protrusion is squeezed, the protrusion will be deformed. After the squeezing is released, the protrusion will recover.

[0036] Reference Figure 1 , Figure 2 , Figure 4 The measuring assembly also includes a pull plate 58, which is located directly behind the support plate 51. The liquid will not push the pull plate 58 when it flows. A round rod 59 is fixedly connected to the front surface of the pull plate 58. Pulling the pull plate 58 can drive the round rod 59 to move synchronously. A slide plate 511 is fixedly connected to the front surface of the round rod 59. An insert block 512 is fixedly connected to the front surface of the slide plate 511. When the round rod 59 moves, the slide plate 511 and the insert block 512 will move synchronously. A slot 501 is provided on the rear surface of the hollow tube 52. The shape and size of the slot 501 match the insert block 512. A rubber pad 57 is fixedly connected to the inner wall of the rear side of the support plate 51. When the slide plate 511 moves backward, it squeezes the rubber pad 57 to deform the rubber pad 57. After the squeezing force is released, the rubber pad 57 will recover due to its own elasticity and drive the slide plate 511 to reset.

[0037] Reference Figure 1 , Figure 2 , Figure 4 The round rod 59 passes through and is slidably connected to the rear surface of the support plate 51, sliding in the front-to-back direction. The slide plate 511 is slidably connected to the inner wall of the support plate 51. The plug block 512 passes through and is slidably connected to the front surface of the support plate 51. There are multiple groups of plug blocks 512, and the multiple groups of plug blocks 512 are evenly distributed longitudinally on the front surface of the support plate 51.

[0038] Reference Figure 1 , Figure 2 , Figure 4 The insert block 512 is inserted into the inner wall of the slot 501 to limit the position of the hollow tube 52 .

[0039] Working principle: When in use, first install the flange 2 on the pipeline with bolts, so that the pipeline 1 is also installed on the pipeline, and then adjust the positions of the multiple groups of hollow tubes 52 according to the diameter of the pipeline 1 to ensure the accuracy of the flow detection data. When adjusting, first pull the pull plate 58 backwards. When the pull plate 58 moves backwards, it will drive the round rod 59, the slide plate 511 and the plug block 512 to move backwards. The slide plate 511 moving backwards will squeeze the rubber pad 57 to cause the rubber pad 57 to deform and generate a reaction force. The plug block 512 moving backwards will disengage from the slot 501 to release the limit on the hollow tube 52. After the limit is released, move the hollow tube 52 to a suitable position, and then release the pull plate 58. The rubber pad 57 will recover due to its own elasticity and drive the pull plate 58, the round rod 59, the slide plate 511 and the plug block 512 to move forward. The plug block 512 moving forward will be plugged into the slot 501 to limit the hollow tube 52 and ensure the stability of the position of the hollow tube 52.

[0040] Then align the block 44 with the slot 402 and plug it in. During the plugging, the rubber at the protrusion of the block 44 will be squeezed and deformed to release the obstruction. When the block 44 and the slot 402 are plugged in, the protrusion of the block 44 will be aligned with the protrusion of the slot 402. The rubber will reset due to its own elasticity and preliminarily fix the top cover 43 on the end cover 42. At this time, the threaded holes on the end cover 42 and the top cover 43 will be aligned. Tightening the bolts can fix the end cover 42 and the top cover 43. At this time, the support plate 51 will extend into the pipe 1. When the top cover 43 needs to be disassembled, first unscrew the bolts, then insert your fingers into the buckle slot 401 and pull the top cover 43 upwards to pull the block 44 out of the slot 402 to complete the disassembly.

[0041] Then, the pipeline is opened to allow water to flow. At this time, the round block 54 located in the pipeline 1 will be pushed backward by the flowing water. The round block 54 moving backward will drive the rubber sheet 55 to move backward to squeeze the air inside the hollow tube 52. The squeezed air will push the rubber block 56 backward, causing the rubber block 56 to squeeze the receiving end of the pressure sensor 53. The pressure sensor 53 can detect and record the measured pressure, and then calculate the flow rate of the liquid according to the pressure, and the liquid level can be understood according to the squeezed pressure sensor 53 located at the top. The setting of multiple groups of hollow tubes 52 can ensure the accuracy of the data. The ultrasonic liquid level meter 3 can measure the liquid level, and then calculate the liquid flow rate according to the liquid level measured by the pressure sensor 53, the liquid level measured by the ultrasonic liquid level meter 3 and the flow rate. In summary, the liquid flow in the pressure-free pipeline can be measured.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A partially full pipe liquid flow measurement device, comprising a pipe (1), characterized in that: The front surface of the pipe (1) is fixedly connected to a flange (2), the upper surface of the flange (2) is provided with an ultrasonic level meter (3), the upper surface of the pipe (1) is provided with a quick-release assembly, the interior of the pipe (1) is provided with a measuring assembly, the measuring assembly comprises a support plate (51), the front surface of the support plate (51) is slidably connected to a hollow tube (52), the inner wall of the rear side of the hollow tube (52) is provided with a pressure sensor (53), the front surface of the hollow tube (52) is penetrated by and slidably connected to a round block (54), the rear surface of the round block (54) is fixedly connected to a rubber sheet (55), and the inner wall piston of the hollow tube (52) is connected to a rubber block (56).

2. A partially full pipe liquid flow measurement device according to claim 1, characterized in that: The rubber sheet (55) is piston-connected to the inner wall of the hollow tube (52), and the rear surface of the rubber block (56) is in contact with the front surface of the pressure sensor (53).

3. The device for measuring liquid flow in a partially full pipe according to claim 1, characterized in that: The quick-release assembly comprises a support tube (41), the upper surface of the support tube (41) is fixedly connected to an end cover (42), the upper surface of the end cover (42) is provided with a card slot (402), the inner wall of the card slot (402) is plugged with a card block (44), the upper surface of the card block (44) is fixedly connected to a top cover (43), and the front surface of the top cover (43) is provided with a buckle slot (401).

4. A partially full pipe liquid flow measurement device according to claim 3, characterized in that: The support pipe (41) penetrates through and is fixedly connected to the upper surface of the pipeline (1), and the upper surface of the support plate (51) is fixedly connected to the lower surface of the top cover (43).

5. The device for measuring liquid flow in a partially full pipe according to claim 3, characterized in that: A protrusion is provided at the bottom end of the front surface of the block (44), and the protrusion is made of rubber material.

6. The device for measuring liquid flow in a partially full pipe according to claim 1, characterized in that: The measuring assembly also includes a pull plate (58), the front surface of the pull plate (58) is fixedly connected to a round rod (59), the front surface of the round rod (59) is fixedly connected to a slide plate (511), the front surface of the slide plate (511) is fixedly connected to an insert block (512), the rear surface of the hollow tube (52) is provided with a slot (501), and the inner wall of the rear side of the support plate (51) is fixedly connected to a rubber pad (57).

7. A partially full pipe liquid flow measurement device according to claim 6, characterized in that: The round rod (59) passes through and is slidably connected to the rear surface of the support plate (51), the sliding plate (511) is slidably connected to the inner wall of the support plate (51), and the plug block (512) passes through and is slidably connected to the front surface of the support plate (51). A plurality of groups of the plug blocks (512) are provided, and the plurality of groups of the plug blocks (512) are evenly distributed longitudinally on the front surface of the support plate (51).

8. The device for measuring liquid flow in a partially full pipe according to claim 6, characterized in that: The insert block (512) is inserted into the inner wall of the slot (501).

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