CN220153638U - Pipe section type electromagnetic flowmeter - Google Patents

Abstract

The utility model discloses a pipe section type electromagnetic flowmeter, which comprises a measuring pipe body and connecting flanges at two ends of the measuring pipe body, wherein a shell component is arranged in the middle section of the measuring pipe body, a connecting short pipe is fixedly welded above the shell component, an exciting coil is arranged in the shell component, an electrode slot which is perpendicular to the flow direction of fluid is arranged on the outer wall of the shell component, a stainless steel electrode is arranged in the electrode slot, the connecting short pipe is communicated with a flow passage of the measuring pipe body, a mounting pedestal is arranged on the shell component at the side surface of the connecting short pipe, a transducer is fixedly arranged above the mounting pedestal, a detection head component is arranged in the connecting short pipe, a rubber pad is arranged between the detection head component and the connecting short pipe and is fixed through a locking block, a lining is arranged on the inner wall of the measuring pipe body, and the transducer is electrically connected with a junction box and the electrode. According to the utility model, through the combined type mounting structure, an operator can conveniently dismount and mount the flowmeter, the whole replacement is not needed after the product fails, and the product is singly replaced aiming at the failed parts, so that the maintenance cost is saved.

Description

Pipe section type electromagnetic flowmeter

Technical Field

The utility model relates to the technical field of flowmeters, in particular to a pipe section type electromagnetic flowmeter.

Background

The electromagnetic flowmeter is an instrument for measuring the flow of conductive fluid according to the electromotive force induced when the conductive fluid passes through an externally applied magnetic field by applying the electromagnetic induction principle, and the structure of the electromagnetic flowmeter mainly comprises a magnetic circuit system, a measuring conduit, an electrode, a shell, a lining, a converter, a display screen and the like.

The existing electromagnetic flowmeter and the pipe body are usually fixed by adopting flanges, operators are difficult to spread in the production environment with small part space, so that the flange plate mounting and dismounting processes are time-consuming and labor-consuming, the maintenance efficiency is affected, and the maintenance cost is increased.

Disclosure of Invention

According to the technical problem to be solved, a pipe section type electromagnetic flowmeter is provided.

In order to achieve the above purpose, the utility model discloses a pipe section type electromagnetic flowmeter, which comprises a measuring pipe body and connecting flanges at two ends of the measuring pipe body, wherein a shell component is arranged in the middle section of the measuring pipe body, a connecting short pipe is fixedly welded above the shell component, an exciting coil is arranged in the shell component, an electrode slot which is perpendicular to the flow direction of fluid is arranged on the outer wall of the shell component, a stainless steel electrode is arranged in the electrode slot, the connecting short pipe is communicated with a flow passage of the measuring pipe body, a mounting pedestal is arranged on the shell component at the side surface of the connecting short pipe, a transducer is fixedly arranged above the mounting pedestal, a detection head component is arranged in the connecting short pipe, a rubber pad is arranged between the detection head component and the connecting short pipe, the rubber pad is fixed through a locking block, a lining is arranged on the inner wall of the measuring pipe body, and the transducer is electrically connected with the junction box and the electrode.

Further, the shell component is formed by fixedly connecting two groups of semicircular covers, connecting end plates extend from two sides of the end parts of the covers, and the two groups of covers lock the connecting end plates through bolts to complete fixation.

Furthermore, the electrode slots and the short connecting pipes are arranged at an included angle of 90 degrees in a vertical plane, and the electrode slots are symmetrically distributed on two sides of the shell component.

Furthermore, a foolproof notch is arranged at one side of the top of the short connecting pipe far away from the converter.

Still further, detect the head subassembly and include the detection head of bottom, detect the head top and connect the guide bar, the guide bar top is fixed with the terminal box, and the guide bar middle section is provided with the installed part, and one side extension of installed part bottom has one section to prevent slow-witted breach assorted structure with the junction tube prevents slow-witted breach.

Furthermore, the detection head is rotatably arranged at the bottom of the guide rod, and the guide rod is hollow and is internally provided with a junction box for connecting the detection head below with the junction box above through a connecting wire.

Further, through holes corresponding to the short connecting pipes are formed in the lining, and the bottom of the detection head is flush with the inner wall of the lining after the detection head is installed in place.

Compared with the prior art, the utility model has the beneficial effects that: the utility model discloses a pipe section type electromagnetic flowmeter, which is convenient for an operator to disassemble and assemble the flowmeter through a combined installation structure, and the product does not need to be replaced integrally after a fault occurs, and only parts for the fault are replaced independently, so that the maintenance cost is saved.

Drawings

The utility model will be described in further detail with reference to the drawings and the detailed description.

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is an exploded view of the present utility model.

FIG. 3 is a cross-sectional view of the present utility model.

In the figure: 1 is a measuring tube body; 2 is a connecting flange; 3 is a shell component; 31 is a connecting end plate; 32 is an exciting coil; 4 is an electrode slot; 5 is a detection head assembly; 51 is a detection head; 52 is a guide bar; 53 is a mounting; 54 is a junction box; 6 is a locking block; 7 is a short connecting pipe; 8 is a converter; 81 is a mounting base; 9 is a lining.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In one embodiment of the utility model, as shown in fig. 1 and 2, a shell component 3 is arranged in the middle section of a measuring tube body 1, a connecting short tube 7 is fixedly welded above the shell component 3, an exciting coil 32 is arranged in the shell component 3, an electrode slot 4 which is perpendicular to the flow direction of fluid is arranged on the outer wall of the shell component, the exciting coil adopts an alternating magnetic field generated by excitation of a 50Hz power supply, a stainless steel electrode is arranged in the electrode slot 4, the electrode is made of non-magnetic conductive stainless steel and is used for leading out and measuring an induced potential signal in proportion, the connecting short tube 7 is communicated with a flow channel of the measuring tube body 1, a mounting pedestal 81 is arranged on the shell component 3 on the side surface of the connecting short tube 7, a transducer 8 is fixedly arranged above the mounting pedestal 81, a measuring head component 5 is arranged in the connecting short tube 7, a rubber pad is arranged between the detecting head component 5 and the connecting short tube 7, the rubber pad is fixed through a locking block 6, a lining 9 is arranged on the inner wall of the measuring tube body 1, and the transducer 8 is electrically connected with the junction box 54 and the electrode, and the transducer is used for amplifying and converting the induced potential signal into a unified standard signal and inhibiting a main interference signal.

The shell component 3 is formed by fixedly connecting two groups of semicircular shells, connecting end plates 31 are extended from two sides of the end parts of the shells, the connecting end plates 31 are locked and fixed by the two groups of shells through bolts, and the inside exciting coil is protected through a split shell component structure, so that the later disassembly and maintenance are convenient, and the shell material is made of ferromagnetic materials and is used for isolating the interference of an external magnetic field.

The electrode slots 4 and the short connecting pipes 7 are arranged at an included angle of 90 degrees in a vertical plane, the electrode slots 4 are symmetrically distributed on two sides of the housing assembly 3, and the induced electromotive force direction, the magnetic field direction and the fluid flow direction are mutually perpendicular.

The one side that converter 8 was kept away from at junction tube 7 top is provided with prevents slow-witted breach, detects the head subassembly 5 and includes the detection head 51 of bottom, detects head 51 top and connects guide bar 52, and guide bar 52 top is fixed with terminal box 54, and the guide bar 52 middle section is provided with mounting 53, and one side of mounting 53 bottom extends has one section to prevent slow-witted breach assorted slow-witted structure with junction tube 7.

The detection head 51 is rotatably arranged at the bottom of the guide rod 52, the guide rod 52 is hollow and is internally provided with a junction box 54 for connecting the detection head 51 below with the junction box 54 above through connecting wires, and operators can change the types of the detection heads according to the fluid adaptability of different properties through the rotatably arranged detection head structure, so that the application range of the utility model is improved.

As shown in fig. 3, the lining 9 is provided with through holes corresponding to the positions of the short connecting pipes 7, and after the lining is in place, the bottom of the detection head 51 is flush with the inner wall of the lining 9, so that fluid can not be blocked when passing through, and sediment in the fluid is prevented from accumulating on the surface of the detection head, thereby affecting the measurement accuracy.

The points to be described are: first, in the description of the present utility model, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed; second, relational terms such as first and second, and the like may be used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The above examples are merely illustrative of the present utility model and are not meant to limit the scope of the present utility model, and all designs that are the same or similar to the present utility model are within the scope of the present utility model.

Claims (7)

1. The utility model provides a pipeline section formula electromagnetic flowmeter, includes survey buret body (1) and survey flange (2) at buret body (1) both ends, its characterized in that, survey buret body (1) middle section is provided with shell subassembly (3), shell subassembly (3) top welded fastening has junction tube (7), shell subassembly (3) internally mounted has excitation coil (32) and is provided with electrode slot (4) with the perpendicular setting of fluid flow direction on the outer wall, install the stainless steel electrode in electrode slot (4), junction tube (7) are conducted with the runner of buret body (1), be provided with mounting pedestal (81) on shell subassembly (3) of junction tube (7) side, mounting pedestal (81) top fixed mounting has converter (8), install in junction tube (7) and examine head subassembly (5), be provided with the rubber pad between detection head subassembly (5) and the junction tube (7), and be fixed through locking piece (6), survey buret body (1) inner wall and install lining (9), converter (8) and terminal box (54), electrode electric connection.

2. A tube section electromagnetic flowmeter according to claim 1, characterized in that the housing assembly (3) is formed by fixedly connecting two sets of semicircular covers, connecting end plates (31) extend from two sides of the ends of the covers, and the two sets of covers lock the connecting end plates (31) by bolts to complete the fixation.

3. A spool piece type electromagnetic flowmeter according to claim 1, characterized in that the electrode slots (4) are arranged at an angle of 90 ° with the junction pipe (7) in a vertical plane, the electrode slots (4) being symmetrically distributed on both sides of the housing assembly (3).

4. A spool piece electromagnetic flowmeter according to claim 1, characterized in that the top of the junction pipe (7) is provided with a foolproof notch on the side remote from the transducer (8).

5. The pipe section type electromagnetic flowmeter according to claim 1, wherein the detecting head assembly (5) comprises a detecting head (51) at the bottom, a guide rod (52) is connected above the detecting head (51), a junction box (54) is fixed at the top of the guide rod (52), a mounting piece (53) is arranged in the middle of the guide rod (52), and a fool-proof structure matched with the fool-proof notch of the connecting short pipe (7) extends at one side of the bottom of the mounting piece (53).

6. The pipe section type electromagnetic flowmeter according to claim 5, wherein said detecting head (51) is rotatably installed at the bottom of a guide rod (52), and the guide rod (52) is hollow and internally provided with a junction box (54) connecting the detecting head (51) below and the junction box above with a connecting wire.

7. A spool piece type electromagnetic flowmeter according to claim 1, characterized in that the lining (9) is provided with through holes corresponding to the positions of the short connecting pipes (7), and the bottom of the detecting head (51) is flush with the inner wall of the lining (9) after the lining is in place.