Accurate flow measuring device

Abstract

The utility model provides an accurate flow measuring device which comprises a first infusion tube, the first infusion tube is connected with a measuring tube of a U-shaped structure, the measuring tube is connected with a second infusion tube, the second infusion tube comprises a front section and a rear section, and the rear section is provided with a flow meter. The measuring tube of the U-shaped structure is arranged, when a solution passes through the rear section of the measuring tube, the solution flows upwards, it can be guaranteed that the rear section is filled with the solution, and then the flow meter can accurately measure the flow; the structure is simple and the use mode is convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to chemical equipment technical field relates to a accurate flow measuring device. BACKGROUND

[0002] In the industries such as mineral processing, smelting, chemical industry, environmental protection, liquid material conveying pipeline is used flowmeter to measure material flow, ensure system process, equipment normal operation. In actual operation, due to material conveying pipeline pipe diameter, flow limitation, sometimes material conveying pipeline is not full pipe state, flowmeter often appears inaccurate measurement problem, becomes the difficulty of liquid material conveying pipeline material flow measurement, influences the normal operation of production. CONTENT OF THE UTILITY MODEL

[0003] The utility model is directed to the inaccurate measurement of the flowmeter in the background art, and provides an accurate flow measuring device.

[0004] Therefore, the utility model takes the following technical scheme:

[0005] An accurate flow measuring device, comprising a first infusion tube, the first infusion tube is connected with the measuring tube of U-shaped structure, the measuring tube is connected with the second infusion tube, the second infusion tube comprises a front section and a rear section, the rear section is equipped with a flowmeter.

[0006] Further, the first infusion tube is connected with a liquid storage tank at the end away from the measuring tube.

[0007] Further, the first infusion tube is provided with a first measuring valve near the measuring tube, and the second infusion tube is provided with a second measuring valve near the measuring tube.

[0008] Further, the first infusion tube is provided with an infusion valve and an infusion pump.

[0009] Further, the rear section is connected with a flushing pipe, the flushing pipe is connected between the flowmeter and the second infusion tube, and the flushing pipe is provided with a flushing valve.

[0010] Further, the bottom end of the measuring tube is connected with a drain pipe, and the drain pipe is provided with a drain valve.

[0011] The utility model has the advantages that the measuring tube is arranged in U-shaped structure, the solution flows upward when passing through the rear section of the measuring tube, the rear section is filled with liquid, and the flowmeter can accurately measure the flow; the structure is simple, and the use is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 The structure of the utility model is shown in the figure.

[0013] In the diagram, 1-first infusion tube, 2-measuring tube, 201-front section, 202-rear section, 3-second infusion tube, 4-flow meter, 5-storage tank, 6-infusion pump, 7-infusion valve, 8-first measuring valve, 9-second measuring valve, 10-flushing tube, 11-flushing valve, 12-drain tube, 13-drain valve. Detailed Implementation

[0014] The present invention will now be described in detail with reference to the accompanying drawings:

[0015] like Figure 1 As shown, an accurate flow measurement device includes a first infusion tube 1, which is connected to a U-shaped measuring tube 2. The measuring tube 2 is connected to a second infusion tube 3. The solution in the first infusion tube 1 can be input into the second infusion tube 3 through the measuring tube 2, and then transported to the corresponding equipment through the second infusion tube 3. Specifically, the measuring tube 2 includes a front section 201 and a rear section 202. The solution in the first infusion tube 1 first enters the front section 201 and flows downward, and then flows upward through the rear section 202 into the second infusion tube 3. A flow meter 4 is provided on the rear section 202. Since the solution flows upward in the rear section 202 of the measuring tube 2, it can be ensured that the rear section 202 is full of solution and in a full tube state, thereby ensuring accurate measurement by the flow meter. The end of the first infusion tube 1 away from the measuring tube 2 is connected to a storage tank 5 for storing the solution. An infusion pump 6 and an infusion valve 7 are provided on the first infusion tube 1.

[0016] In addition, to facilitate the calibration and cleaning of the flow meter, a first measuring valve 8 is provided near the measuring tube 2 in the first infusion tube 1, and a second measuring valve 9 is provided near the measuring tube 2 in the second infusion tube 3. A flushing tube 10 is connected to the rear section 202, which is connected between the flow meter 4 and the second infusion tube 3. A flushing valve 11 is provided on the flushing tube 10. A drain tube 12 is connected to the bottom end of the measuring tube 2, and a drain valve 13 is provided on the drain tube 12.

[0017] The method of using this utility model is as follows:

[0018] In use, the first measuring valve 8 and the second measuring valve 9 can be opened, and then the infusion pump 6 and the infusion valve 7 can be turned on to deliver the solution in the storage tank 5 to the measuring tube 2 through the first infusion tube 1. After entering the measuring tube 2, the solution first flows downward through the front section 201, and then flows upward through the rear section 202 into the second infusion tube 3. Since the solution flows upward in the rear section 202, it can be ensured that the rear section 202 is full. When the solution passes through the rear section 202, the flow meter 4 can accurately detect the flow rate of the solution flowing through the rear section 202. After the infusion is completed, the drain valve 13 can be opened to drain the accumulated liquid in the measuring tube 2.

[0019] When the flowmeter 4 needs to be cleaned, the first measuring valve 8 and the second measuring valve 9 are closed, the flushing valve 11 is opened, water is fed into the measuring tube 2 through the flushing pipe 10 to clean the flowmeter 4, and after the cleaning is completed, the liquid in the measuring tube 2 is drained through the opening of the liquid draining valve 13.

Claims

1. A device for accurately measuring flow rate, characterized in that, It includes a first infusion tube (1), which is connected to a U-shaped measuring tube (2). The measuring tube (2) is connected to a second infusion tube (3), which includes a front section (201) and a rear section (202). The rear section (202) is equipped with a flow meter (4).

2. The accurate flow measurement device according to claim 1, characterized in that, The end of the first infusion tube (1) away from the measuring tube (2) is connected to a storage tank (5).

3. The accurate flow measurement device according to claim 1, characterized in that, The first infusion tube (1) is provided with a first measuring valve (8) near the measuring tube (2), and the second infusion tube (3) is provided with a second measuring valve (9) near the measuring tube (2).

4. The accurate flow measurement device according to claim 1, characterized in that, The first infusion tube (1) is equipped with an infusion valve (7) and an infusion pump (6).

5. The accurate flow measurement device according to claim 1, characterized in that, The rear section (202) is connected to a flushing pipe (10), which is connected between the flow meter (4) and the second infusion pipe (3). A flushing valve (11) is provided on the flushing pipe (10).

6. The accurate flow measurement device according to claim 1, characterized in that, The bottom end of the measuring tube (2) is connected to a drain pipe (12), and the drain pipe (12) is provided with a drain valve (13).

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