An insertion electromagnetic flowmeter

Abstract

This utility model discloses an insertion-type electromagnetic flowmeter, relating to the field of electromagnetic flowmeter technology. It includes a flowmeter and a flange connection assembly located on the side of the pipe being measured. The flowmeter includes a converter, a sealing sleeve, an insertion rod, and a measuring probe electrode. The measuring probe electrode is fixedly located at the bottom of the insertion rod. A transition plate is fixedly located at the bottom of the converter, and a sealing ring is fixedly located at the bottom of the transition plate. The upper end of the sealing sleeve is fitted onto the upper end of the insertion rod, and the sealing ring is connected and cooperates with the sealing sleeve. A ball valve is fixedly fitted onto the lower end of the outer wall of the sealing sleeve. The sealing sleeve is connected and cooperates with the flange connection assembly. This utility model allows for insertion and removal of the flowmeter insertion end under pressure, improving the ease of installation while ensuring sealing during measurement.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic flowmeter technology, specifically to an insertion type electromagnetic flowmeter. Background Technology

[0002] Electromagnetic flow meters are instruments that measure the volumetric flow rate of conductive liquids based on the principle of electromagnetic induction. The core of the instrument is to calculate the flow rate by detecting the induced electromotive force generated when the liquid flows. Existing pipeline electromagnetic flow meters usually require the pipe to be cut off during installation, which is complicated, costly, and inconvenient to add measurement points to the existing pipeline system.

[0003] In addition, traditional flow meters are difficult to install or disassemble under pressurized conditions, and maintenance is inconvenient. Although there are some insertion flow meters on the market, their sealing performance, applicable diameter range and online insertion and removal capabilities still need to be improved.

[0004] Therefore, we propose an insertion-type electromagnetic flowmeter to solve the above problems. Utility Model Content

[0005] In view of the problems existing in the current insertion electromagnetic flowmeter, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide an insertion electromagnetic flow meter, which solves the problem that existing pipeline electromagnetic flow meters require the pipeline to be cut off during installation and are relatively cumbersome to operate.

[0007] To achieve the above objectives, this utility model provides the following technical solution: An insertion electromagnetic flow meter includes a flow meter and a flange connection assembly disposed on the side of the pipe being measured. The flow meter includes a converter, a sealing sleeve, an insertion rod, and a measuring probe electrode, wherein the measuring probe electrode is fixedly disposed at the bottom of the insertion rod. The converter has an adapter plate fixedly installed at its bottom, and a sealing ring fixedly installed at its bottom. The upper end of the sealing sleeve is fitted onto the upper end of the insertion rod. The sealing ring and the sealing sleeve are connected and cooperate. A ball valve is fixedly fitted onto the lower end of the outer wall of the sealing sleeve. The sealing sleeve is connected and cooperates with the flange connection assembly.

[0008] Preferably, a sealing ring is embedded at the bottom of the upper inner wall of the sealing sleeve, and the sealing ring is configured to cooperate with the sealing pressure ring.

[0009] Preferably, the bottom of the adapter plate is provided with a flow direction rod, which is used to indicate the direction of fluid flow.

[0010] Preferably, the flange connection assembly has internal bolt fasteners, and a graphite spiral wound gasket is provided between the bolt fasteners and the flange connection assembly.

[0011] Furthermore, when the converter has a split structure, it is a junction box used for signal processing and output.

[0012] Preferably, the electrodes of the measuring probe are electrically connected to the converter.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows: 1. This utility model, through the flange connection assembly, converter, insertion rod, ball valve, sealing sleeve, sealing pressure ring and sealing ring, and measuring probe electrode, enables the insertion and removal of the flow meter insertion end under pressure, improving the ease of flow meter installation while ensuring sealing during the measurement process. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 A schematic diagram of the structure of an existing insertion electromagnetic flowmeter; Figure 2 This is a schematic diagram of the structure of this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Flange connection assembly; 2. Converter; 3. Sealing sleeve; 4. Insertion rod; 5. Measuring probe electrode; 6. Adapter plate; 7. Sealing pressure ring; 8. Graphite spiral wound gasket; 9. Ball valve; 10. Sealing ring; 11. Flow direction rod; 12. Bolt fasteners. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0018] This utility model discloses an insertion-type electromagnetic flowmeter.

[0019] This utility model provides, for example Figure 1-2The diagram shows an insertion electromagnetic flow meter, including a flow meter and a flange connection assembly 1 located on the side of the pipe being measured. The flange connection assembly 1 has a bolt fastener 12 inside, and a graphite spiral wound gasket 8 is provided between the bolt fastener 12 and the flange connection assembly 1. The flow meter includes a converter 2, a sealing sleeve 3, an insertion rod 4, and a measuring probe electrode 5. When the converter 2 is a split structure, it is a junction box used for signal processing and output. The measuring probe electrode 5 is fixedly located at the bottom of the insertion rod 4 and is electrically connected to the converter 2. The bottom of the adapter plate 6 is provided with a flow direction rod 11, which is used to indicate the fluid flow direction. The bottom of the converter 2 is fixedly provided with an adapter plate 6, and the bottom of the adapter plate 6 is fixedly provided with a sealing pressure ring 7. The upper end of the sealing sleeve 3 is sleeved on the upper end of the insertion rod 4. The sealing pressure ring 7 is connected and cooperates with the sealing sleeve 3. The bottom of the upper inner wall of the sealing sleeve 3 is embedded with a sealing ring 10. The sealing ring 10 is cooperated with the sealing pressure ring 7. The lower end of the outer wall of the sealing sleeve 3 is fixedly provided with a ball valve 9. The sealing sleeve 3 is connected and cooperates with the flange connection assembly 1.

[0020] Working principle: First, the entire device is fixed to the side of the pipe to be tested through the flange connection assembly 1. The bolts and fasteners 12 inside the flange connection assembly 1 are used to reinforce the connection. The graphite spiral wound gasket 8 between the bolts and fasteners 12 and the flange connection assembly 1 enhances the sealing at this point. At the same time, it is confirmed that the direction indicated by the flow direction rod 11 is consistent with the flow direction of the fluid in the pipe. Then, the ball valve 9 at the lower end of the outer wall of the sealing sleeve 3 is opened to open the internal channel of the sealing sleeve 3. The insertion rod 4 with the measuring probe electrode 5 fixed at the bottom is inserted downward along the internal channel of the sealing sleeve 3 until the measuring probe electrode 5 is inserted into the fluid in the pipe to be tested. During the insertion process, the sealing ring 10 at the bottom of the upper inner wall of the sealing sleeve 3 and the sealing pressure ring 7 at the bottom of the adapter plate 6 are tightly fitted to prevent fluid leakage. During measurement, because the measuring probe electrode 5 is electrically connected to the converter 2, when the conductive fluid in the pipe flows through the measuring probe electrode 5, it cuts the magnetic field based on the principle of electromagnetic induction to generate an induced electromotive force. The measuring probe electrode 5 captures the induced electromotive force and transmits it to the converter 2. If the converter 2 is a junction box with a split structure, it processes and outputs the signal, and then calculates the volumetric flow rate of the fluid. When maintenance or disassembly is required, pull the insertion rod 4 upward to pull the measuring probe electrode 5 out of the pipe being tested and back into the sealing sleeve 3. Close the ball valve 9 to block the connection between the sealing sleeve 3 and the pipe being tested. At this time, the insertion rod 4, measuring probe electrode 5 and other components can be safely maintained or disassembled under pressure. During the process, the sealing pressure ring 7 and the sealing ring 10 always remain sealed to ensure that the fluid in the pipe does not leak.

[0021] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An insertion electromagnetic flowmeter comprising a flowmeter and a flange connection assembly (1) arranged on the side of the pipe to be measured, characterized in that, The flow meter includes a converter (2), a sealing sleeve (3), an insertion rod (4), and a measuring probe electrode (5), wherein the measuring probe electrode (5) is fixedly disposed at the bottom of the insertion rod (4); The converter (2) is fixedly provided with an adapter plate (6) at the bottom, and a sealing pressure ring (7) is fixedly provided at the bottom of the adapter plate (6). The upper end of the sealing sleeve (3) is sleeved on the upper end of the insertion rod (4). The sealing pressure ring (7) is connected and cooperated with the sealing sleeve (3). A ball valve (9) is fixedly sleeved on the lower end of the outer wall of the sealing sleeve (3). The sealing sleeve (3) is connected and cooperated with the flange connection assembly (1).

2. The insertion electromagnetic flowmeter according to claim 1, characterized in that, A sealing ring (10) is embedded at the bottom of the upper inner wall of the sealing sleeve (3), and the sealing ring (10) is configured to cooperate with the sealing pressure ring (7).

3. The insertion electromagnetic flowmeter according to claim 1, characterized in that, The bottom of the adapter plate (6) is provided with a flow direction rod (11), which is used to indicate the flow direction of the fluid.

4. The insertion electromagnetic flowmeter according to claim 1, characterized in that, The flange connection assembly (1) is provided with a bolt fastener (12) inside, and a graphite spiral wound gasket (8) is provided between the bolt fastener (12) and the flange connection assembly (1).

5. The insertion electromagnetic flowmeter according to claim 1, characterized in that, When the converter (2) is a split structure, it is a junction box used for signal processing and output.

6. The insertion electromagnetic flowmeter according to claim 1, characterized in that, The measuring probe electrode (5) is electrically connected to the converter (2).

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