Valve and electromagnetic flowmeter integrated device and application thereof
By integrating the electromagnetic flowmeter with the valve, the problems of cumbersome installation and space occupation caused by separate installations are solved, achieving compactness, reliable sealing and high-precision measurement, and reducing maintenance costs.
Patent Information
- Application Number
- CN202610058245.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-16
- Publication Date
- 2026-03-03
AI Technical Summary
In the existing technology, the separate installation of valves and electromagnetic flowmeters has problems such as complicated installation, large space occupation, poor sealing, low measurement accuracy and high maintenance costs.
Design an integrated valve and electromagnetic flow meter device that integrates the electromagnetic components with the sphere, eliminates the transition pipe, adopts a stainless steel liner and electromagnetic shell structure, optimizes the excitation coil and electrode settings, reduces the number of parts and improves sealing performance.
The device features a compact structure, convenient installation, and reliable sealing, reducing the risk of fluid leakage and maintenance costs while improving measurement accuracy.
Smart Images
Figure CN121594201A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of valve device technology, and in particular to an integrated valve and electromagnetic flowmeter device and its application. Background Technology
[0002] In many fields such as industrial production, municipal water supply, and petrochemicals, fluid transportation, control, and flow measurement are crucial. Currently, the industry commonly uses valves (such as ball valves) and electromagnetic flow meters as two separate components, installed on the fluid pipeline and connected sequentially via pipe flanges. This split-installation structure has several inherent drawbacks. From an installation perspective, this structure requires separate positioning, fixing, and sealing of the valve and electromagnetic flow meter, making the installation process cumbersome and time-consuming. It also demands a high level of skill from the installers. If coaxiality deviation occurs during installation, it can easily lead to problems such as obstructed fluid flow and increased pressure loss.
[0003] In terms of space occupancy, the sequential installation of two independent components requires a considerable axial space in the pipeline, making it unsuitable for use in confined installation scenarios such as downhole equipment and small integrated pipelines. Regarding sealing performance, the split installation has multiple sealing interfaces. Whether at the connection between the valve and the pipeline or the connection between the electromagnetic flowmeter and the pipeline, there is a risk of leakage. This risk is particularly pronounced in high-pressure and corrosive fluid transportation scenarios, not only causing fluid waste but also potentially leading to safety accidents.
[0004] Measurement accuracy is also negatively impacted by this structure. The pipe section between the valve and the electromagnetic flowmeter is prone to fluid disturbances such as eddies and uneven velocity distribution. These disturbances are directly transmitted to the measurement area of the electromagnetic flowmeter, leading to increased measurement errors and an inability to accurately reflect the actual flow rate. Furthermore, high maintenance costs are a significant problem with the split-type structure. The two independent components require separate maintenance, increasing the workload and potentially affecting the installation accuracy and sealing performance of the other component during maintenance, further increasing maintenance costs.
[0005] In view of the various defects of the above-mentioned split structure, there is an urgent need to design an integrated device of valve and electromagnetic flowmeter that is compact, easy to install, reliable in sealing and has high measurement accuracy, so as to solve the problems existing in the prior art. Summary of the Invention
[0006] This invention proposes an integrated device for valves and electromagnetic flowmeters and its application.
[0007] To achieve the above objectives, the present invention adopts the following technical solution: An integrated valve and electromagnetic flow meter device includes a valve body with a fluid passage and a ball installed in the valve body. The ball includes a stainless steel liner and an electromagnetic shell. The stainless steel liner is encased in an electromagnetic shell by injection molding. An electromagnetic component is provided on the ball. The electromagnetic component includes an excitation coil, a positive electrode, and a negative electrode. The working parts of the positive and negative electrodes of the electromagnetic component are both located inside the stainless steel liner.
[0008] A further preferred embodiment of the present invention is as follows: excitation coils are symmetrically arranged on the upper and lower sides of the outer wall of the stainless steel liner, and positive and negative electrodes are embedded on the left and right sides of the inner wall of the stainless steel liner, with the axial direction of the positive and negative electrodes perpendicular to the direction of the alternating magnetic field of the excitation coil and perpendicular to the flow direction of the fluid being measured.
[0009] A further preferred embodiment of the present invention is that a ground wire is provided below the inner wall of the stainless steel liner.
[0010] A further preferred embodiment of the present invention: a mounting groove is vertically opened on the top of the sphere, a detection rod is inserted into the mounting groove, an electromagnetic component is installed inside the detection rod, a positive electrode and a negative electrode are installed side by side in the area inside the stainless steel liner on the bottom surface of the detection rod, and an excitation coil is wound inside the detection rod.
[0011] A further preferred embodiment of the present invention: a guide plate is provided between the positive electrode and the negative electrode on the bottom surface of the detection rod.
[0012] An integrated valve and electromagnetic flowmeter device is applicable to any of the following: industrial production fluid transport systems, municipal water supply and drainage systems, petrochemical fluid metering systems, and food and pharmaceutical fluid transport and metering systems.
[0013] The present invention has the following advantages: 1. This invention integrates the electromagnetic components and the sphere into a single unit through a connecting and sealing structure, eliminating the transition pipe between the two, significantly shortening the axial length of the overall device, making the structure more compact, suitable for installation scenarios with limited space, and improving the versatility of the device.
[0014] 2. The present invention reduces the number of parts by integrating the electromagnetic component with the ball. During maintenance, only the valve body needs to be inspected, without the need to disassemble the two components separately, which reduces the maintenance workload and cost. It can also solve the sealing problem, effectively improve the sealing performance, and reduce the risk of fluid leakage. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the valve of the present invention; Figure 2 This is a schematic diagram of the front view structure of a sphere according to Embodiment 1 of the present invention; Figure 3This is a schematic diagram of the main structure of the sphere without an electromagnetic shell according to Embodiment 1 of the present invention; Figure 4 This is a three-dimensional structural diagram of a sphere without an electromagnetic shell according to Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the front view structure of the sphere in Embodiment 2 of the present invention; Figure 6 This is a schematic diagram of the front view structure of the detection rod of the present invention; In the diagram: 1. Valve body, 2. Ball, 3. Electromagnetic housing, 4. Stainless steel liner, 5. Excitation coil, 6. Positive electrode, 7. Negative electrode, 8. Ground wire, 9. Detection rod, 10. Guide plate. Detailed Implementation
[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.
[0017] Example 1: according to Figure 1-4 As shown, an integrated valve and electromagnetic flowmeter device includes a valve body 1 with a fluid passage and a ball 2 installed inside the valve body 1. The ball 2 includes a stainless steel liner 4 and an electromagnetic shell 3. The electromagnetic shell 3 serves as insulation. The stainless steel liner 4 is externally covered with the electromagnetic shell 3 by injection molding. An electromagnetic component is provided on the ball 2. The electromagnetic component includes an excitation coil 5, a positive electrode 6, and a negative electrode 7. The working parts of the positive electrode 6 and the negative electrode 7 of the electromagnetic component are both located inside the stainless steel liner 4.
[0018] The excitation coil 5 is symmetrically arranged on the upper and lower sides of the outer wall of the stainless steel liner 4. The positive electrode 6 and the negative electrode 7 are embedded on the left and right sides of the inner wall of the stainless steel liner 4. The axial direction of the positive electrode 6 and the negative electrode 7 is perpendicular to the direction of the alternating magnetic field of the excitation coil 5 and perpendicular to the flow direction of the fluid being measured.
[0019] A ground wire 8 is installed on the lower inner wall of the stainless steel liner 4. The ground wire 8 can ensure the accuracy and stability of the measurement signal and improve the anti-interference ability of the instrument.
[0020] Example 2: according to Figure 1 , Figure 5 , Figure 6As shown, an integrated valve and electromagnetic flowmeter device includes a valve body 1 with a fluid passage and a ball 2 installed inside the valve body 1. The ball 2 includes a stainless steel liner 4 and an electromagnetic shell 3. The stainless steel liner 4 is encapsulated with the electromagnetic shell 3 by injection molding. The electromagnetic shell 3 serves as insulation. An electromagnetic component is provided on the ball 2. The electromagnetic component includes an excitation coil 5, a positive electrode 6, and a negative electrode 7. The working parts of the positive electrode 6 and the negative electrode 7 of the electromagnetic component are both located inside the stainless steel liner 4.
[0021] The top of the sphere 2 has a vertically opening mounting groove, into which a detection rod 9 is inserted. An electromagnetic component is installed inside the detection rod 9. The bottom surface of the detection rod 9 is located in the area inside the stainless steel liner 4, where a positive electrode 6 and a negative electrode 7 are installed side by side. An excitation coil 5 is wound inside the detection rod 9.
[0022] A flow guide plate 10 is provided between the positive electrode 6 and the negative electrode 7 on the bottom surface of the detection rod 9, and the flow guide plate 10 can play a guiding role.
[0023] Example 3: An integrated valve and electromagnetic flowmeter device is applicable to any of the following: industrial production fluid transport systems, municipal water supply and drainage systems, petrochemical fluid metering systems, and food and pharmaceutical fluid transport and metering systems.
[0024] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. An integrated device for valves and electromagnetic flowmeters, characterized in that: The device includes a valve body with a fluid passage and a ball installed inside the valve body. The ball includes a stainless steel liner and an electromagnetic shell. The stainless steel liner is encased in an electromagnetic shell by injection molding. An electromagnetic component is installed on the ball. The electromagnetic component includes an excitation coil, a positive electrode, and a negative electrode. The working parts of the positive and negative electrodes of the electromagnetic component are both located inside the stainless steel liner.
2. The integrated valve and electromagnetic flowmeter device according to claim 1, characterized in that: The excitation coils are symmetrically arranged on the upper and lower sides of the outer wall of the stainless steel liner. The positive and negative electrodes are embedded on the left and right sides of the inner wall of the stainless steel liner. The axial direction of the positive and negative electrodes is perpendicular to the direction of the alternating magnetic field of the excitation coil and perpendicular to the flow direction of the fluid being measured.
3. The integrated valve and electromagnetic flowmeter device according to claim 2, characterized in that: A ground wire is installed at the bottom of the inner wall of the stainless steel liner.
4. The integrated valve and electromagnetic flowmeter device according to claim 1, characterized in that: The top of the sphere has a vertically opening mounting groove, into which a detection rod is inserted. An electromagnetic component is installed inside the detection rod. Positive and negative electrodes are installed side by side in the area inside the stainless steel liner on the bottom surface of the detection rod. An excitation coil is wound inside the detection rod.
5. The integrated valve and electromagnetic flowmeter device according to claim 4, characterized in that: A flow guide plate is provided between the positive and negative electrodes on the bottom surface of the detection rod.
6. The application of the integrated valve and electromagnetic flowmeter device according to any one of claims 1-5, characterized in that, An integrated valve and electromagnetic flowmeter device is applicable to any one of the following: industrial production fluid transport systems, municipal water supply and drainage systems, petrochemical fluid metering systems, and food and pharmaceutical fluid transport and metering systems.