Electromagnetic flowmeter for measuring high-solubility salt medium
By designing a protective housing and using a drying ring, alumina ceramic lining, and PTFE coating in the electromagnetic flowmeter, the problems of short circuit in the excitation coil and measurement in high-solubility salt media were solved, thus achieving both equipment durability and measurement accuracy.
Patent Information
- Application Number
- CN202520673123.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-04-10
AI Technical Summary
Existing electromagnetic flowmeters are prone to short circuits in the excitation coil due to moisture infiltration in humid environments, affecting their use. Furthermore, their measurement accuracy and stability are compromised in environments with high concentrations of salt.
A double-layer pipe structure was designed, equipped with a protective shell to protect the meter head, a drying ring to absorb moisture, an alumina ceramic lining, and a polytetrafluoroethylene coating on the electrodes to prevent corrosion, prevent short circuits, and improve durability.
It effectively prevents moisture infiltration, extends the life of the excitation coil, reduces maintenance costs, ensures measurement accuracy and stability in high-solubility salt media environments, and extends the service life of the meter head.
Smart Images
Figure CN223883032U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of electromagnetic flowmeter especially a kind of electromagnetic flowmeter for measuring high solubility salt medium. BACKGROUND
[0002] The working principle of electromagnetic flowmeter is based on Faraday's law of electromagnetic induction, that is, when conductor moves in magnetic field and cuts magnetic force line, induced electromotive force will be generated at both ends of conductor. In electromagnetic flowmeter, flowing conductive liquid is equivalent to moving conductor, and the flow rate and flow of fluid can be obtained by measuring induced electromotive force, and the measurement result is irrelevant to parameters such as density, viscosity, temperature and pressure of fluid, so it has high measurement accuracy and long-term stability. However, in the process of use, moisture may penetrate into the main body of electromagnetic flowmeter due to the relatively humid external environment, and the excitation coil is short-circuited due to moisture, which affects use. SUMMARY
[0003] The purpose of the present application is to provide an electromagnetic flowmeter for measuring high solubility salt medium, to solve the problems in the prior art.
[0004] The present application provides an electromagnetic flowmeter for measuring high solubility salt medium, comprising a pipeline main body, the pipeline main body is a double-layer pipeline, the outer wall of the outer pipeline of the pipeline main body is fixedly connected with a mounting seat, the mounting seat is fixedly connected with a mounting plate, the mounting plate is fixedly connected with a meter head, the meter head is sleeved with a protective shell outside, the protective shell is detachably connected with the mounting plate through bolts, the protective shell comprises a shell, an opening is formed in the shell, a vertical sliding slot is arranged on each side of the opening, the two vertical sliding slots are fixedly connected with the shell, a blocking body is fixedly connected between the upper ends of the vertical sliding slots, a baffle is slidably connected between the vertical sliding slots, a sliding strip is fixedly connected to each side of the baffle, a notch is formed in the vertical sliding slot, the sliding strip is slidably connected in the notch, a connecting plate is fixedly connected to the upper end of the baffle, limit blocks are arranged at both ends of the connecting plate, the limit blocks are slidably connected in limit grooves, the limit grooves are formed in the vertical sliding slot and communicate with the notch; an excitation coil and a drying ring are arranged in the pipeline main body, a drying agent is arranged in the drying ring; a lining is fixedly connected to the inner wall of the inner pipeline of the pipeline main body, and an electrode is embedded in the lining.
[0005] Further, connecting wings are fixedly connected to the left and right sides of the shell, and screw holes are formed in the connecting wings.
[0006] Further, a magnetic body is embedded in the connecting plate, a connecting block is arranged at the blocking body, and a magnetic strip is embedded in the connecting block and magnetically attracted to the magnetic body.
[0007] Further, a notch is formed in the blocking body, and the notch is located on the left and right sides of the connecting block.
[0008] Further, the inner side of the baffle is in sliding connection with the front side of the shell.
[0009] Further, the limiting groove is located at the outer side of the slot, the lower end surface of the slot is an open port, the lower end surface of the limiting groove is a closed surface, and the lower end surface of the limiting groove is fixedly connected with a rubber pad.
[0010] Further, the excitation coil has two and is symmetrically arranged at the upper and lower ends inside the pipeline body.
[0011] Further, the drying ring has two and is sleeved between the outer pipeline and the inner pipeline of the pipeline body, and the drying ring is symmetrically arranged at the left and right sides of the excitation coil.
[0012] Further, the liner is made of alumina ceramic.
[0013] Further, the electrode has two and is symmetrically arranged at the front and rear sides of the liner, and the surface of the electrode is coated with a polytetrafluoroethylene coating.
[0014] The utility model discloses a meter head protection device, which belongs to the field of electromagnetic flowmeter protection devices. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the whole structure schematic diagram of the utility model.
[0016] Figure 2 It is the whole structure and connection schematic diagram of the protection shell.
[0017] Figure 3 It is the limiting groove and connection structure schematic diagram.
[0018] Figure 4 It is the limiting block and connection structure schematic diagram.
[0019] In the drawing:
[0020] 1-pipeline body;2-mounting seat;3-mounting plate;4-meter head;5-protection shell;6-shell;7-opening;8-vertical sliding groove;9-block;10-baffle;11-sliding bar;12-slot;13-connection plate;14-limiting block;15-limiting groove;16-excitation coil;17-drying ring;18-liner;19-electrode;20-connection wing;21-magnetic attraction body;22-connection block. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] like Figures 1-4 An electromagnetic flowmeter for measuring high-solidity salt media is shown, comprising a pipe body, which is a double-layered pipe. A mounting base is fixedly connected to the outer wall of the outer pipe of the pipe body. A mounting plate is fixedly connected to the mounting base, and a meter head is fixedly connected to the mounting plate. The meter head has a display screen. A protective shell is fitted over the meter head to protect it from dust ingress and to prevent damage to the display screen, thus extending the meter head's service life and reducing maintenance costs. The protective shell is detachably connected to the mounting plate by bolts. The protective shell includes a housing with an opening, allowing the operator to read the reading on the display screen. A vertical sliding groove is provided on each side of the opening, and the two vertical sliding grooves are fixedly connected to the housing. A baffle is fixedly connected between the upper ends of the vertical sliding grooves, and a baffle is slidably connected between the vertical sliding grooves. A sliding strip is fixedly connected to each of the left and right sides of the baffle. A slot is opened in the vertical sliding groove, and the sliding strip is slidably connected to the slot. A connecting plate is fixedly connected to the upper end of the baffle. Limit blocks are provided at both ends of the connecting plate. The limit blocks are slidably connected in the limit groove, which is opened in the vertical sliding groove and communicates with the slot. An excitation coil and a drying ring are provided inside the pipe body. The drying ring is filled with desiccant, which can absorb moisture between the outer and inner pipes of the pipe body. The drying ring prevents the electromagnetic flowmeter from being exposed to rainy conditions for a long time, so that moisture may seep in and cause a short circuit in the excitation coil. A lining is fixedly connected to the inner wall of the inner pipe of the pipe body, and electrodes are embedded in the lining.
[0023] Connecting wings are fixedly connected to the left and right sides of the housing. Screw holes are provided on the connecting wings. The protective shell and the mounting plate are detachably connected at the connecting wings by bolts.
[0024] The connecting plate has an embedded magnetic element, and the stop body has a connecting block with a magnetic strip embedded in the connecting block that magnetically engages with the magnetic element. Through this magnetic engagement, the stop body and the stop plate can be fixed relative to each other, while also facilitating the removal of the stop plate from the display screen for reading.
[0025] The stop body has a notch located on the left and right sides of the connecting block. The notch is used to make room for the connecting plate to move down.
[0026] The inner side of the baffle is in sliding connection with the front side of the shell, and the baffle is close to the surface of the shell, so that the baffle can be closed when the connecting plate is in magnetic connection with the blocking body.
[0027] The limiting groove is located on the outer side of the slot, the lower end surface of the slot is an open port, the lower end surface of the limiting groove is a closed surface, and the rubber pad is fixedly connected to the lower end surface of the limiting groove, the limiting groove cooperates with the limiting block to prevent the baffle from falling when moving downward, and the rubber pad can be used for damping effect to prevent the limiting block from being broken by knocking against the lower end surface of the limiting groove.
[0028] The excitation coil has two, symmetrically arranged at the upper and lower ends of the pipeline body, and a constant magnetic field is generated on the cross section of the pipeline body by the excitation coil.
[0029] The drying ring has two, which are sleeved between the outer pipeline and the inner pipeline of the pipeline body, and the drying ring is symmetrically arranged on the left and right sides of the excitation coil, and a plurality of pores are arranged on the drying ring, so that the drying agent can contact the environment between the outer pipeline and the inner pipeline of the pipeline body.
[0030] The material of the liner is alumina ceramic, the liner is an insulating material, preventing a short circuit between the high-solubility salt medium and the pipeline body, and at the same time, the alumina ceramic has good corrosion resistance and can work in a high-solubility salt medium environment for a long time.
[0031] The electrode has two, symmetrically arranged on the front and rear sides of the liner, and the surface of the electrode is coated with a polytetrafluoroethylene coating, the electrode is used for measuring induced voltage, and the polytetrafluoroethylene coating has good corrosion resistance, so that the electrode can work in a high-solubility salt medium environment for a long time.
[0032] For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.
Claims
1. An electromagnetic flowmeter for measuring high-solids salt media, characterized in that, The utility model provides a pipeline body, the pipeline body is double -layer pipeline, the outer wall of outer pipeline of pipeline body is fixedly connected with mounting seat, mounting seat is fixedly connected with mounting plate on, mounting plate is fixedly connected with table head on, the outside of table head is sleeved with protective shell, protective shell is detachably connected on mounting plate through bolt, protective shell includes casing, the opening is seted up on the casing, and one vertical slide groove is arranged on both sides of opening, two vertical slide grooves are fixedly connected on the casing, and the upper end of vertical slide groove is fixedly connected with the blocking body, and the blocking body is slidably connected with the baffle between the vertical slide groove, the left and right sides of baffle are fixedly connected with a slide strip respectively, and the vertical slide groove is provided with a notch, the slide strip is slidably connected at the notch, the upper end of baffle is fixedly connected with the connecting plate, and the both ends of connecting plate are provided with limiting block, limiting block is slidably connected in limiting slot, limiting slot is seted up in vertical slide groove and is communicated with the notch, the inner wall of inner pipeline of pipeline body is fixedly connected with lining, and the electrode is embedded in the lining.
2. A flowmeter for measuring high-salinity salt media according to claim 1, wherein, The left and right sides of the casing are fixedly connected with connecting wings, and screw holes are formed in the connecting wings.
3. A flowmeter for measuring high-salinity salt media according to claim 1, wherein, The connecting plate is embedded with a magnetic body, the blocking body is provided with a connecting block, and the connecting block is embedded with a magnetic strip that magnetically attracts the magnetic body.
4. A flowmeter for measuring high-salinity salt media according to claim 3, wherein, A notch is formed in the blocking body, and the notch is located on the left and right sides of the connecting block.
5. A flowmeter for measuring high-salinity salt media according to claim 1, wherein, The inner side of the baffle is slidably connected with the front side of the casing.
6. A flowmeter for measuring high-salinity salt media according to claim 1, wherein, The limiting slot is located on the outer side of the notch, the lower end surface of the notch is an open end, the lower end surface of the limiting slot is a closed end, and a rubber pad is fixedly connected to the lower end surface of the limiting slot.
7. A flowmeter for measuring high-salinity salt media according to claim 1, wherein, The excitation coil has two parts and is symmetrically arranged at the upper and lower ends of the pipeline body.
8. A flowmeter for measuring high-salinity salt media according to claim 1, wherein, The drying ring has two parts and is sleeved between the outer pipeline and the inner pipeline of the pipeline body, and the drying ring is symmetrically arranged on the left and right sides of the excitation coil.
9. A flowmeter for measuring high-salinity salt media according to claim 1, wherein, The lining is made of aluminum oxide ceramic.
10. A flowmeter for measuring high-salinity salt media according to claim 1, wherein, The electrode has two parts and is symmetrically arranged on the front and rear sides of the lining, and a polytetrafluoroethylene coating is coated on the surface of the electrode.