Flowmeter auxiliary detection device

Abstract

The utility model relates to an auxiliary detection device for a flow meter, and belongs to the technical field of flow meter detection. Comprising a pipeline I located on one side of the air inlet end of the flowmeter, an exhaust valve is connected to the pipeline I, a detachable pipeline II is connected to the lower end of the pipeline I, a cover body I and a cover body II are arranged in the pipeline I and the pipeline II respectively, a containing cavity is formed between the cover body I and the cover body II, and the exhaust valve is connected to the upper portion of the containing cavity. A liquid level indicator is arranged in the containing cavity and located below the exhaust valve, a filter screen is arranged at the upper end of the cover body II, and a drainage cover is arranged below the cover body II. The utility model provides an auxiliary detection device for a flow meter, which is used for enhancing air accumulation in a pipeline I.

Description

Technical Field

[0001] The utility model relates to an auxiliary detection device for a flow meter, belonging to the technical field of flow meter detection. Background Art

[0002] Flow meters are mainly used to measure water flow. Flow meters are widely used in monitoring the total amount and concentration of water generated in industrial production processes, water volume monitoring in urban sewage treatment plants, and water volume monitoring in water pollution control systems. They are one of the indicators for environmental protection departments to supervise pollutant emissions.

[0003] In order to ensure the accuracy of flow meter detection, the air in the water in pipe I needs to be discharged. Currently, an exhaust valve is directly installed on pipe I.

[0004] In the process of implementing the present technical solution, the inventors found that there are at least the following technical problems in the prior art:

[0005] By directly installing the exhaust valve on pipe I, it is impossible to exhaust all the gas contained in the sewage, resulting in low exhaust efficiency and errors in flow meter detection. Utility Model Content

[0006] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art and to provide a flow meter auxiliary detection device to gather and discharge the air in the pipeline I.

[0007] The flow meter auxiliary detection device described in the utility model comprises a pipeline I located at one side of the air inlet end of the flow meter, the pipeline I is connected to an exhaust valve, the lower end of the pipeline I is connected to a detachable pipeline II, the pipeline I and the pipeline II are respectively provided with a cover body I and a cover body II, a containing cavity is formed between the cover body I and the cover body II, the upper part of the containing cavity is connected to the exhaust valve, a liquid level indicator is provided in the containing cavity below the exhaust valve, a filter is provided at the upper end of the cover body II, and a drainage cover is provided below the cover body II.

[0008] Furthermore, a vertically arranged cylinder is provided in the middle of the cover body I, and a ring plate extending toward the axis of the pipe II is provided at the water inlet of the cover body II. When the pipe II is installed on the pipe I, the lower end surface of the cylinder abuts against the ring plate.

[0009] Furthermore, the cover body II and the drainage cover are respectively provided with corresponding conical surfaces.

[0010] Furthermore, a control valve is connected between the exhaust valve and the pipeline I.

[0011] Furthermore, pipeline I and pipeline II are connected by a flange fastened with bolts.

[0012] Furthermore, the liquid level indicator adopts a stainless steel float liquid level switch.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides a drainage cover to slow down the flow speed of the water flow, so that the air in the sewage rises, the air enters the accommodating chamber from the filter screen, and the air is gathered in the space of the accommodating chamber, and then discharged by the exhaust valve. When the water level in the accommodating chamber rises, the exhaust valve can be closed by the liquid level indicator, thereby avoiding the influence of the air in the water on the flow meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is one of the internal structure diagrams of Embodiment 1 of the present utility model;

[0016] Figure 2 This is the second schematic diagram of the internal structure of Embodiment 1 of the present utility model;

[0017] Figure 3 It is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0018] In the figure:

[0019] 1. Pipeline I; 11. Cover body I; 111. Cylinder; 12. Accommodating chamber;

[0020] 2. Exhaust valve;

[0021] 3. Pipe II; 31. Cover body II; 311. Filter screen; 312. Annular plate; 32. Drainage cover;

[0022] 4. Liquid level indicator. DETAILED DESCRIPTION

[0023] Example 1

[0024] like Figure 1 to Figure 3 As shown, the flow meter auxiliary detection device described in the utility model includes a pipe Ⅰ1 located at one side of the air inlet end of the flow meter, an exhaust valve 2 is connected to the pipe Ⅰ1, a detachable pipe Ⅱ3 is connected to the lower end of the pipe Ⅰ1, a cover body Ⅰ11 and a cover body Ⅱ31 are respectively provided inside the pipe Ⅰ1 and the pipe Ⅱ3, a receiving chamber 12 is formed between the cover body Ⅰ11 and the cover body Ⅱ31, an exhaust valve 2 is connected above the receiving chamber 12, a liquid level indicator 4 is provided below the exhaust valve 2 in the receiving chamber 12, a filter screen 311 is provided at the upper end of the cover body Ⅱ31, in practice, when the flow rate of water is very slow, the bubbles in the water will float upward and enter the receiving chamber 12, the filter screen 311 prevents water from directly flowing into the receiving chamber 12, if the filter screen 311 is not provided here, water is easy to enter too quickly, thereby triggering the liquid level indicator 4, and a drainage cover 32 is provided below the cover body Ⅱ31.

[0025] A vertically arranged cylinder 111 is provided in the middle of the cover body I11, and an annular plate 312 extending toward the axis of the pipe II3 is provided at the water inlet of the cover body II31. When the pipe II3 is installed on the pipe I1, the lower end surface of the cylinder 111 abuts against the annular plate 312.

[0026] The cover body II 31 and the drainage cover 32 are respectively provided with corresponding conical surfaces, which can increase the distance of water flow and slow down the speed of water flow.

[0027] A control valve is also connected between the exhaust valve 2 and the pipeline Ⅰ1, which can be manually controlled.

[0028] The pipeline I1 and the pipeline II3 are connected by a flange fastened with bolts, which facilitates the welding installation of the internal cover body I11, cover body II31 and drainage cover 32.

[0029] The liquid level indicator 4 adopts a stainless steel float liquid level switch, and the distance is easy to control.

[0030] Working process or working principle:

[0031] like Figure 2 As shown, Figure 2 The arrow A in the middle indicates the direction of water flow. The air in the water moves upward from the filter screen 311 into the accommodating chamber 12. Figure 2 As shown by the middle arrow B, the air is discharged through the exhaust valve 2 at the upper end. When too much air is discharged, the water level rises and the liquid level indicator 4 is triggered. At this time, the exhaust valve is closed, and the air inside the accommodating chamber 12 increases while the water level drops. At this time, the float in the liquid level indicator 4 moves down and the exhaust valve 2 opens.

[0032] The description of the direction and relative position relationship of the structure in the present invention, such as the description of front, back, left, right, up, and down, does not constitute a limitation of the present invention, but is only for the convenience of description.

Claims

1. A flow meter auxiliary detection device, comprising a pipeline I (1) located at one side of an air inlet end of the flow meter, an exhaust valve (2) being connected to the pipeline I (1), characterized in that: The lower end of the pipeline I (1) is connected to a detachable pipeline II (3), and a cover body I (11) and a cover body II (31) are respectively provided inside the pipeline I (1) and the pipeline II (3), and a receiving chamber (12) is formed between the cover body I (11) and the cover body II (31). An exhaust valve (2) is connected above the receiving chamber (12), and a liquid level indicator (4) is provided below the exhaust valve (2) in the receiving chamber (12). A filter screen (311) is provided at the upper end of the cover body II (31), and a drainage cover (32) is provided below the cover body II (31).

2. The flow meter auxiliary detection device according to claim 1, characterized in that: A vertically arranged cylinder (111) is provided in the middle of the housing I (11), and an annular plate (312) extending toward the axis of the pipe II (3) is provided at the water inlet of the housing II (31). When the pipe II (3) is installed on the pipe I (1), the lower end surface of the cylinder (111) abuts against the annular plate (312).

3. The flow meter auxiliary detection device according to claim 2, characterized in that: The cover body II (31) and the drainage cover (32) are respectively provided with corresponding conical surfaces.

4. The flow meter auxiliary detection device according to any one of claims 1 to 3, characterized in that: A control valve is also connected between the exhaust valve (2) and the pipeline I (1).

5. The flow meter auxiliary detection device according to claim 1, characterized in that: Pipeline I (1) and pipeline II (3) are connected by flanges fastened with bolts.

6. The flow meter auxiliary detection device according to claim 1, characterized in that: The liquid level indicator (4) adopts a stainless steel float liquid level switch.

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