Liquid flow metering and calibrating device

Abstract

The utility model discloses a liquid flow metering and calibrating device, which comprises an outer measuring assembly and a calibrating assembly, the outer measuring assembly comprises an outer connecting pipe, an outer right flange, an outer left flange, an outer valve, a lower connecting pipe, a lower valve, a lower digital display and a lower flow sensor, and the right side wall of the outer connecting pipe is fixedly connected with the outer right flange. An outer measuring assembly and a verification assembly are arranged, the outer measuring assembly and the verification assembly are connected in parallel and connected in a pipeline together, then valves are opened, the flow in the pipeline is measured and compared, and the verification assembly is disassembled after comparison is completed. The calibration flowmeter can be directly installed in the pipeline for detection, calibration and maintenance can be conducted on the liquid flowmeter, the pipeline can be kept to work smoothly all the time, normal production is not affected, the calibration efficiency of the liquid flowmeter is greatly improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid flow meter calibration, in particular to a liquid flow metering and calibration device. Background Art

[0002] A liquid flowmeter is a precision instrument used to measure the flow of liquids, gases, and steam in sealed pipes. It operates based on the Karman vortex principle or other related principles. Its sensing element is sealed within the body, preventing contact with the measured medium. With no moving parts, it requires no on-site maintenance and is widely used in industry and scientific research. To ensure its accuracy, it requires regular flow calibration.

[0003] When calibrating existing liquid flow meters, the liquid flow meter needs to be removed from the pipeline and then sent for inspection, which causes the pipeline to be broken and unable to work, resulting in high maintenance costs and being unfavorable to production. Utility Model Content

[0004] The purpose of the utility model is to provide a liquid flow metering and calibration device, which connects an external measuring component and a calibration component in parallel, connects them together in a pipeline, then opens each valve, measures the flow in the pipeline respectively and makes a comparison, and then removes the calibration component after completion. When calibrating a liquid flow meter in a normal pipeline, the calibration flow meter can be directly installed in the pipeline for testing, which not only can calibrate and maintain the liquid flow meter, but also can keep the pipeline unobstructed and working at all times without affecting normal production, greatly improving the calibration efficiency of the liquid flow meter and reducing maintenance costs.

[0005] In order to achieve the above-mentioned purpose, a liquid flow measurement and calibration device is provided, comprising: an external measurement component and a calibration component, the external measurement component comprising an external connecting pipe, an external right flange, an external left flange, an external valve, a lower connecting pipe, a lower valve, a lower digital display and a lower flow sensor, the right side wall of the external connecting pipe is fixedly connected to the outer right flange, the left side wall of the external connecting pipe is fixedly connected to the outer left flange, the circumferential surface of the external connecting pipe is fixedly connected to the outer valve, the lower part of the external connecting pipe is fixedly connected to the lower part of the external connecting pipe, the lower connecting pipe is in a "U" shape, and the circumferential surface of the lower connecting pipe is fixedly connected to the outer valve. The upper part is fixedly connected with a lower valve, the lower part of the lower connecting pipe is fixedly connected with a lower digital display, and the upper part of the lower digital display is fixedly connected with a lower flow sensor; the calibration component includes an inner connecting pipe, an inner right flange, an inner left flange, an inner valve, an upper digital display and an upper flow sensor, the right side wall of the inner connecting pipe is fixedly connected with an inner left flange, the left side wall of the inner connecting pipe is fixedly connected with an inner valve on the circumferential surface of the inner connecting pipe, the top of the inner connecting pipe is fixedly connected with an upper digital display, and the bottom of the upper digital display is fixedly connected with an upper flow sensor.

[0006] According to the liquid flow metering and calibration device, the number of the external connecting pipe, the external right flange, the external left flange and the external valve are all provided in two, and are symmetrically distributed at the left and right ends of the lower connecting pipe, and the external valves are all located on the inner side of the lower connecting pipe.

[0007] According to the liquid flow measurement and verification device, the lower flow sensor is located inside the lower connecting pipe and is electrically connected to the lower digital display. The lower digital display is used to display the liquid flow value flowing through the lower connecting pipe.

[0008] According to the liquid flow measurement and verification device, the upper flow sensor is located inside the inner connecting pipe and is electrically connected to the upper digital display. The upper digital display is used to display the liquid flow value flowing through the inner connecting pipe.

[0009] According to the liquid flow measurement and verification device, the external measurement component and the verification component are fixedly connected by bolts, and the external measurement component is fixedly connected to the external pipeline by bolts.

[0010] According to the liquid flow measurement and calibration device, the outer valve, the lower valve, and the inner valve are all solenoid valves, which facilitates the control of each valve.

[0011] According to the liquid flow measurement and verification device, the diameter of the inner connecting pipe is twice that of the lower connecting pipe, which facilitates proportional conversion when comparing measured values ​​and facilitates detection.

[0012] Compared with the prior art, the beneficial effects of the present invention are: by setting up an external measurement component and a verification component, the external measurement component and the verification component are connected in parallel and connected together in the pipeline, and then each valve is opened, the flow in the pipeline is measured respectively and compared, and the verification component is removed after completion. When calibrating the liquid flow meter in the normal pipeline, the verification flow meter can be directly installed in the pipeline for testing, which not only can calibrate and maintain the liquid flow meter, but also can keep the pipeline unobstructed and working at all times without affecting normal production, greatly improving the calibration efficiency of the liquid flow meter and reducing maintenance costs.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a front view of a liquid flow measurement and calibration device of the utility model;

[0016] Figure 2This is a diagram of the external measurement components of a liquid flow measurement and calibration device of the present utility model;

[0017] Figure 3 This is a diagram of a calibration component of a liquid flow measurement and calibration device of the present utility model;

[0018] Figure 4 This is a cross-sectional view of a liquid flow measurement and calibration device of the present utility model.

[0019] In the figure: 1. External measuring component; 2. Verification component; 101. External connecting pipe; 102. External right flange; 103. External left flange; 104. External valve; 105. Lower connecting pipe; 106. Lower valve; 107. Lower digital display; 108. Lower flow sensor; 201. Internal connecting pipe; 202. Internal right flange; 203. Internal left flange; 204. Internal valve; 205. Upper digital display; 206. Upper flow sensor. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 4The utility model provides a technical solution: a liquid flow measurement and calibration device, comprising: an external measuring component 1 and a calibration component 2, the external measuring component 1 comprising an external connecting pipe 101, an external right flange 102, an external left flange 103, an external valve 104, a lower connecting pipe 105, a lower valve 106, a lower digital display 107 and a lower flow sensor 108, the right side wall of the external connecting pipe 101 is fixedly connected to the outer right flange 102, the left side wall of the external connecting pipe 101 is fixedly connected to the outer left flange 103, the circumferential surface of the external connecting pipe 101 is fixedly connected to the outer valve 104, the lower side of the external connecting pipe 101 is fixedly connected to the lower side of the external connecting pipe 105, the lower connecting pipe 105 is "U" shaped, the external connecting pipe 101, the outer right flange 102, the outer left flange 103 and the external There are two valves 104, which are symmetrically distributed at the left and right ends of the lower connecting pipe 105. The outer valves 104 are located on the inner side of the lower connecting pipe 105. The lower valve 106 is fixedly connected to the circumferential surface of the lower connecting pipe 105, and the lower digital display 107 is fixedly connected to the bottom of the lower connecting pipe 105. The lower flow sensor 108 is fixedly connected to the top of the lower digital display 107. The lower flow sensor 108 is located inside the lower connecting pipe 105 and is electrically connected to the lower digital display 107. It is used to measure the liquid flow flowing through the lower connecting pipe 105 and display it through the lower digital display 107. The lower digital display 107 and the lower flow sensor 108 are installed on the lower connecting pipe 105 using a traditional installation method and can be disassembled for easy maintenance and replacement.

[0022] The calibration component 2 includes an inner connecting pipe 201, an inner right flange 202, an inner left flange 203, an inner valve 204, an upper digital display 205 and an upper flow sensor 206. The diameter of the inner connecting pipe 201 is twice that of the lower connecting pipe 105. The inner right flange 202 is fixedly connected to the right side wall of the inner connecting pipe 201, the inner left flange 203 is fixedly connected to the left side wall of the inner connecting pipe 201, the inner valve 204 is fixedly connected to the circumferential surface of the inner connecting pipe 201, the upper digital display 205 is fixedly connected to the top of the inner connecting pipe 201, and the upper flow sensor 206 is fixedly connected to the bottom of the upper digital display 205. The upper flow sensor 206 is located inside the inner connecting pipe 201 and is electrically connected to the upper digital display 205. It is used to measure the liquid flow flowing through the inner connecting pipe 201 and display it through the upper digital display 205.

[0023] The outer measuring component 1 and the verification component 2 are fixedly connected by bolts, and the outer measuring component 1 is fixedly connected to the external pipeline by bolts. The outer valve 104, the lower valve 106, and the inner valve 204 are all solenoid valves.

[0024] Working principle: connect the external measuring component 1 and the verification component 2 in parallel, connect the external measuring component 1 and the external pipeline in series, then open the external valves 104, the lower valve 106, and the inner valve 204, so that the liquid in the pipeline flows through the inner connecting pipe 201 and the lower connecting pipe 105 respectively, and the upper flow sensor 206 and the lower flow sensor 108 respectively detect the flow of the liquid passing through, and display the test results through the upper digital display 205 and the lower digital display 107. Compare the two displayed values ​​to determine the flow of the lower flow sensor. To check whether the measurement of 108 is accurate, after completing the test, remove the calibration component 2, and transport the liquid in the pipeline through the lower connecting pipe 105. When calibrating the liquid flow meter in the normal working pipeline, the calibration component 2 can be directly installed on the inner side of the outer measuring component 1, and the outer valve 104, the lower valve 106, and the inner valve 204 are still opened. The lower flow sensor 108 can be calibrated in the same way. Not only can the lower flow sensor 108 be calibrated and maintained, but the pipeline can also be kept unobstructed at all times without affecting normal production.

[0025] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A liquid flow measurement and calibration device, characterized in that: include: An external measuring component (1) and a calibration component (2), wherein the external measuring component (1) comprises an external connecting pipe (101), an external right flange (102), an external left flange (103), an external valve (104), a lower connecting pipe (105), a lower valve (106), a lower digital display (107) and a lower flow sensor (108); the right side wall of the external connecting pipe (101) is fixedly connected to the external right flange (102); the left side wall of the external connecting pipe (101) is fixedly connected to the external left flange (103); the circumferential surface of the external connecting pipe (101) is fixedly connected to the external valve (104); the lower part of the external connecting pipe (101) is fixedly connected to the lower part; the lower connecting pipe (105) is U-shaped; the circumferential surface of the lower connecting pipe (105) is fixedly connected to the lower valve (106); A lower digital display (107) is fixedly connected to the bottom of the connecting pipe (105), and a lower flow sensor (108) is fixedly connected to the top of the lower digital display (107); the calibration component (2) comprises an inner connecting pipe (201), an inner right flange (202), an inner left flange (203), an inner valve (204), an upper digital display (205) and an upper flow sensor (206); the right side wall of the inner connecting pipe (201) is fixedly connected to the inner right flange (202), the left side wall of the inner connecting pipe (201) is fixedly connected to the inner left flange (203), the circumferential surface of the inner connecting pipe (201) is fixedly connected to the inner valve (204), the top of the inner connecting pipe (201) is fixedly connected to the upper digital display (205), and the bottom of the upper digital display (205) is fixedly connected to the upper flow sensor (206).

2. A liquid flow measurement and calibration device according to claim 1, characterized in that: The number of the external connecting pipe (101), the external right flange (102), the external left flange (103) and the external valve (104) is set at two, and they are symmetrically distributed at the left and right ends of the lower connecting pipe (105), and the external valve (104) is located on the inner side of the lower connecting pipe (105).

3. A liquid flow measurement and calibration device according to claim 1, characterized in that: The lower flow sensor (108) is located inside the lower connecting pipe (105) and is electrically connected to the lower digital display (107).

4. A liquid flow measurement and calibration device according to claim 1, characterized in that: The upper flow sensor (206) is located inside the inner connecting tube (201) and is electrically connected to the upper digital display (205).

5. A liquid flow measurement and calibration device according to claim 1, characterized in that: The external measurement component (1) and the verification component (2) are fixedly connected by bolts, and the external measurement component (1) and the external pipeline are fixedly connected by bolts.

6. A liquid flow measurement and calibration device according to claim 1, characterized in that: The outer valve (104), the lower valve (106), and the inner valve (204) are all solenoid valves.

7. A liquid flow measurement and calibration device according to claim 1, characterized in that: The diameter of the inner connecting pipe (201) is twice that of the lower connecting pipe (105).

Images