CN211576257U - Anti-interference signal vortex street flowmeter - Google Patents

Abstract

The utility model discloses an interference-proof signal vortex flowmeter, concretely relates to flowmeter equipment field, which comprises a housin, the fixed surface of casing is connected with the table body, the inner wall fixedly connected with retainer plate of casing, the inner wall fixedly connected with rubber circle of retainer plate, the inner wall fixedly connected with damping ring of rubber circle, damping ring's all side activities laminating has the shock attenuation ball, shock attenuation ball fixed connection is at the inner wall of casing. The utility model discloses a rubber circle cooperation shock attenuation ball can transmit the pipeline to shaking weakening of cup jointing pipe, and through bolt cooperation gasket and first damping spring, make to drive the one end that first ring flange was kept away from to the pipeline, extrude second damping spring and play absorbing effect at the inner wall of movable sleeve through the movable rod, cooperation shock pad makes the shock attenuation effect better, thereby realize reducing the vibration of this equipment service environment, improve the purpose of measuring result's accuracy.

Description

Anti-interference signal vortex street flowmeter

Technical Field

The utility model relates to a flowmeter equipment field, more specifically says, the utility model relates to an anti-interference signal vortex flowmeter.

Background

In the fluid, a non-streamline object is inserted in the direction perpendicular to the fluid to be used as a vortex detection body, a regular oscillating motion is generated behind the vortex detection body within a certain Reynolds number range, namely two rows of vortexes are generated on two sides of the vortex detection body, the directions of the vortexes are opposite, the vortexes appear alternately, and the two parallel vortex rows are called Karman vortex streets. A vortex flowmeter is a flow measuring instrument without moving parts, and the vortex flowmeter reflects the flow velocity by measuring the vortex frequency at the downstream of an obstacle in a flow path so as to achieve the purpose of measuring the flow. The vortex street flowmeter is mainly used for measuring the flow of industrial pipeline medium fluid, such as various media of gas, liquid, steam and the like. Its advantages are low pressure loss, wide range of measuring range, high precision and no influence from fluid density, pressure, temp and viscosity.

However, in the prior art, when the device is actually used, the anti-seismic anti-interference capability is poor, the device is easily interfered by field vibration, and a vibration or strong electric interference signal on the field is superposed on the waveform of an effective signal, so that the metering is inaccurate.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides an anti-interference signal vortex flowmeter, the utility model aims to solve the technical problem that: the vibration signal interference causes inaccurate measurement.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an interference-proof signal vortex street flowmeter, includes the casing, the fixed surface of casing is connected with the table body, the inner wall fixedly connected with retainer plate of casing, the inner wall fixedly connected with rubber circle of retainer plate, the inner wall fixedly connected with damping ring of rubber circle, damping ring's all side activities are laminated and are had the damping ball, damping ball fixed connection is at the inner wall of casing, the inner wall fixedly connected with pipe coupling of damping ring, the pipeline has been cup jointed to the inner wall of pipe coupling, the fixed surface of the corresponding pipeline position of casing is connected with first ring flange, the fixed surface of pipeline is connected with the second ring flange, the activity is pegged graft between second ring flange and the first ring flange and is had the bolt.

When the pipeline vibrates, can make the pipeline drive the bell and spigot joint pipe and rock to make the bell and spigot joint pipe drive the damping ring and rock at the inner wall of rubber circle, can weaken rocking of bell and spigot joint pipe through rubber circle cooperation damping ball, thereby realize absorbing purpose.

In a preferred embodiment, the both ends of casing are flaring formula structure, concave ring has been seted up to the week side of damping ring, and the inner wall fixed connection of concave ring and rubber circle for water in the pipeline can not be blockked by the lateral wall of casing, and the concave ring cooperation rubber circle of damping ring and retainer plate play limiting displacement, make the damping ring can only do eccentric motion, can't remove about.

In a preferred embodiment, one end of the socket corresponding to the position of the pipe is in a flared structure, and the inner wall of the socket is tightly attached to the surface of the pipe, so that the pipe can prevent water leakage when being connected to the inner wall of the socket.

In a preferred embodiment, a gasket is sleeved on the surface of the bolt far away from the first flange plate, one end of the gasket near the first flange plate is fixedly connected with a first damping spring, the first damping spring is fixedly connected with one end of the second flange plate, one end of the first flange plate far away from the second flange plate is fixedly connected with a nut, the inner wall of the nut is in threaded connection with the surface of the bolt, one end of the second flange plate near the first flange plate is fixedly connected with a shock pad, and the surface of the shock pad is tightly attached to one end of the first flange plate, so that when the pipeline vibrates to move left and right, one end of the second flange plate far away from the first flange plate is driven, at the moment, the second flange plate extrudes the first damping spring by matching the bolt with the gasket and the first damping spring and matches with the reset tension of the first damping spring, thereby playing a shock absorption role, the shock absorption effect is better by matching with the shock absorption pad.

In a preferred embodiment, the mounting groove has all been seted up to the one end of first ring flange and second ring flange opposite face, the inner wall fixedly connected with movable sleeve of mounting groove in the second ring flange, the inner wall fixedly connected with second damping spring of movable sleeve, the one end activity laminating of second damping spring has the movable rod, and the movable rod activity is pegged graft at the inner wall of movable sleeve, the inner wall of mounting groove in first ring flange is connected to the movable rod fixed connection for when pipe vibration moves about, can drive the second ring flange and lean on the one end to first ring flange, extrude second damping spring through the movable rod at the inner wall of movable sleeve this moment and play absorbing effect, cooperation shock pad makes the shock attenuation effect better.

In a preferred embodiment, the watch body comprises a vibration sensor and a sensor probe, the vibration sensor is fixedly connected to the surface of the shell, the sensor probe is arranged in the shell, and the vibration condition of the shell can be monitored by arranging the vibration sensor.

In a preferred embodiment, the output ends of the vibration sensor and the sensor probe are connected with a charge amplification module, the output end of the charge amplification module is connected with a control module, and the output end of the control module is connected with a display module, so that signals of the vibration sensor and the sensor probe are amplified by the charge amplification module and processed in the control module, and the processed signals are displayed on the display module.

In a preferred embodiment, the control module comprises a duplication checking module, a logic judgment module, a filtering module and a single chip microcomputer, the duplication checking module is used for detecting the same signal frequency of the sensor probe and the vibration sensor, the logic judgment module is used for judging whether the same frequency signal detected by the duplication checking module is a vibration signal, and the filtering module is used for filtering the part of the vibration sensor which is the vibration signal, so that the vibration signal can be filtered by the vibration sensor and the sensor probe through the duplication checking module in cooperation with the logic judgment module and the filtering module, and the measurement signal is more accurate.

In a preferred embodiment, the charge amplification module is used for amplifying the electric signals of the vibration sensor and the sensor head and transmitting the amplified signals to the control module, so that the electric signals of the vibration sensor and the sensor head are amplified to facilitate screening of the vibration signals.

The utility model discloses a technological effect and advantage:

1. the rubber ring is matched with the damping ball to weaken the shake transmitted from the pipeline to the sleeve pipe, the bolt is matched with the gasket and the first damping spring to enable the end, away from the first flange, of the second flange to be driven by the pipeline to play a damping role, the movable rod is used for extruding the second damping spring on the inner wall of the movable sleeve to play a damping role, and the damping effect is better through being matched with the damping pad, so that the purposes of reducing the vibration of the using environment of the equipment and improving the accuracy of a measuring result are achieved;

2. the signal amplification of vibration sensor and sensor detecting head is passed to control module department through the charge amplification module, detect out the same signal frequency of sensor detecting head and vibration sensor through looking for the heavy module, and judge the same frequency for vibration signal through logic judgement module, be used for filtering the part for vibration signal among the vibration sensor through the filtering module, and the measured data that will handle through the singlechip shows on display module, thereby realize through filtering vibration signal, with the purpose of improving measuring result's accuracy, compare with prior art, through filtering vibration signal, with the accuracy that improves measuring result.

Drawings

Fig. 1 is a partial front sectional view of the overall structure of the present invention.

Fig. 2 is an enlarged view of a portion a of fig. 1 according to the present invention.

Fig. 3 is a side sectional view of the shell structure of the present invention.

Fig. 4 is a sectional view of the structure of the movable sleeve of the present invention.

Fig. 5 is a control block diagram of the overall structure system of the present invention.

The reference signs are: 1. a housing; 2. a watch body; 21. a vibration sensor; 22. a sensor probe; 23. a charge amplification module; 24. a control module; 241. a duplicate checking module; 242. a logic judgment module; 243. a filtering module; 244. a single chip microcomputer; 25. a display module; 3. a stationary ring; 4. a rubber ring; 5. a damping ring; 6. a shock absorbing ball; 7. sleeving a pipe; 8. a pipeline; 9. a first flange plate; 10. a second flange plate; 11. a bolt; 12. a gasket; 13. a first damping spring; 14. a nut; 15. a shock pad; 16. mounting grooves; 17. a movable sleeve; 18. a second damping spring; 19. a movable rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides an interference-proof signal vortex flowmeter, including casing 1, casing 1's fixed surface is connected with the table body 2, casing 1's inner wall fixedly connected with retainer plate 3, retainer plate 3's inner wall fixedly connected with rubber circle 4, rubber circle 4's inner wall fixedly connected with damping ring 5, damping ring 5's all side activity laminating has damping ball 6, damping ball 6 fixed connection is at casing 1's inner wall, damping ring 5's inner wall fixedly connected with cup pipe 7, the inner wall of cup pipe 7 has cup jointed pipeline 8, the fixed surface of the corresponding pipeline 8 position of casing 1 is connected with first ring flange 9, pipeline 8's fixed surface is connected with second ring flange 10, the activity is pegged graft between second ring flange 10 and the first ring flange 9 and is had bolt 11.

The both ends of casing 1 are flaring formula structure, the concave ring has been seted up to the week side of damping ring 5, and the inner wall fixed connection of the inner wall of concave ring and rubber circle 4.

One end of the sleeve pipe 7 corresponding to the position of the pipeline 8 is of a flaring structure, and the inner wall of the sleeve pipe 7 is tightly attached to the surface of the pipeline 8.

The surface that first ring flange 9 was kept away from to bolt 11 has cup jointed gasket 12, gasket 12 is close to the first damping spring 13 of one end fixedly connected with of first ring flange 9, and first damping spring 13 fixed connection is in the one end of second ring flange 10, the one end fixedly connected with nut 14 of second ring flange 10 is kept away from to first ring flange 9, and the inner wall of nut 14 and the surperficial threaded connection of bolt 11, second ring flange 10 is close to the one end fixedly connected with shock pad 15 of first ring flange 9, and the surface of shock pad 15 closely laminates with the one end of first ring flange 9.

Mounting groove 16 has all been seted up to the one end of first ring flange 9 and second ring flange 10 opposite face, mounting groove 16's inner wall fixedly connected with movable sleeve 17 in the second ring flange 10, the inner wall fixedly connected with second damping spring 18 of movable sleeve 17, the one end activity laminating of second damping spring 18 has movable rod 19, and the activity of movable rod 19 is pegged graft at the inner wall of movable sleeve 17, the inner wall of mounting groove 16 in first ring flange 9 of 19 fixed connection of movable rod.

As shown in fig. 1 to 4, the embodiment specifically is: when the vibration damping device is used, when the pipeline 8 vibrates, the pipeline 8 can drive the sleeve pipe 7 to rock, the sleeve pipe 7 can drive the damping ring 5 to rock on the inner wall of the rubber ring 4, the rubber ring 4 can be used for weakening the rock of the sleeve pipe 7 in cooperation with the damping ball 6, the vibration of the pipeline 8 is prevented from being transmitted to the inside of the shell 1, so that the measurement result of the watch body 2 is prevented from being influenced, when the pipeline 8 vibrates to move left and right, one end, far away from the first flange 9, of the second flange 10 can be driven, at the moment, the bolt 11 is matched with the gasket 12 and the first damping spring 13, the second flange 10 can be used for extruding the first damping spring 13, the resetting stretching of the first damping spring 13 is matched, so that the vibration damping effect is achieved, when the pipeline 8 vibrates to move left and right, the second flange 10 can be driven to lean against one end of the first flange 9, at this moment, the second damping spring 18 is extruded on the inner wall of the movable sleeve 17 through the movable rod 19 to play a role in damping, the damping effect is better by matching with the damping pad 15, and the problem of inaccurate metering caused by interference of vibration signals in the prior art is specifically solved by the embodiment.

The watch body 2 comprises a vibration sensor 21 and a sensor probe 22, the vibration sensor 21 is fixedly connected to the surface of the shell 1, and the sensor probe 22 is arranged in the shell 1.

The output ends of the vibration sensor 21 and the sensor probe 22 are both connected with a charge amplification module 23, the output end of the charge amplification module 23 is connected with a control module 24, and the output end of the control module 24 is connected with a display module 25.

The control module 24 includes a duplicate checking module 241, a logic judging module 242, a filtering module 243 and a single chip microcomputer 244, the duplicate checking module 241 is configured to detect the same signal frequency of the sensor probe 22 and the vibration sensor 21, the logic judging module 242 is configured to judge whether the same frequency signal detected by the duplicate checking module 241 is a vibration signal, and the filtering module 243 is configured to filter a portion of the vibration sensor 21 that is a vibration signal.

The charge amplification module 23 is used for amplifying the electrical signals of the vibration sensor 21 and the sensor head 22 and transmitting the amplified signals to the control module 24.

As shown in fig. 1 and 5, the embodiment specifically includes: the vibration condition of the shell 1 can be monitored by arranging the vibration sensor 21, signals of the vibration sensor 21 and the sensor head 22 are amplified by the charge amplification module 23 through the charge amplification module 23 and the amplified signals are transmitted to the control module 24, the duplication checking module 241 is used for detecting the same signal frequency of the sensor probe 22 and the vibration sensor 21, the logic judging module 242 is used for judging whether the same frequency signal detected by the duplication checking module 241 is a vibration signal, the filtering module 243 is used for filtering a part of the vibration sensor 21 which is the vibration signal, so that the repetition checking module 241 in cooperation with the logic determining module 242 and the filtering module 243 can filter the vibration signal, therefore, the measurement signal is more accurate, the single chip microcomputer 244 displays the processed measurement data on the display module 25, and the embodiment specifically solves the problem that the vibration signal in the prior art cannot be filtered.

The utility model discloses the theory of operation:

referring to the attached drawings 1-4 of the specification, the rubber ring 4 is matched with the damping ball 6 to weaken the shake of the pipeline 8 transferred to the sleeve joint pipe 7, the bolt 11 is matched with the gasket 12 and the first damping spring 13, so that the end, far away from the first flange 9, of the second flange 10 driven by the pipeline 8 is damped, the second damping spring 18 is extruded on the inner wall of the movable sleeve 17 through the movable rod 19 to achieve the damping effect, and the damping effect is better through being matched with the damping pad 15, so that the purposes of reducing the vibration of the using environment of the equipment and improving the accuracy of the measuring result are achieved;

referring to fig. 1 and 5 of the specification, signals of the vibration sensor 21 and the sensor probe 22 are amplified by the charge amplification module 23 and transmitted to the control module 24, the same signal frequency of the sensor probe 22 and the vibration sensor 21 is detected by the duplication checking module 241, the same frequency of the vibration signal is judged by the logic judgment module 242, the vibration signal is filtered by the filtering module 243, and the processed measurement data is displayed on the display module 25 by the single chip microcomputer 244, so that the purpose of filtering the vibration signal to improve the accuracy of the measurement result is achieved.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The utility model provides an interference-proof signal vortex flowmeter, includes casing (1), its characterized in that: the surface of the shell (1) is fixedly connected with a watch body (2), the inner wall of the shell (1) is fixedly connected with a fixed ring (3), the inner wall of the fixed ring (3) is fixedly connected with a rubber ring (4), the inner wall of the rubber ring (4) is fixedly connected with a damping ring (5), the side surface of the damping ring (5) is movably attached with a damping ball (6), the damping ball (6) is fixedly connected with the inner wall of the shell (1), the inner wall of the damping ring (5) is fixedly connected with a sleeve pipe (7), the inner wall of the sleeve pipe (7) is sleeved with a pipeline (8), the surface of the shell (1) corresponding to the position of the pipeline (8) is fixedly connected with a first flange (9), the surface of the pipeline (8) is fixedly connected with a second flange plate (10), and a bolt (11) is movably inserted between the second flange plate (10) and the first flange plate (9).

2. The vortex shedding flowmeter of claim 1, wherein: the both ends of casing (1) are flaring formula structure, the concave ring has been seted up to the week side of damping ring (5), and the inner wall fixed connection of the inner wall of concave ring and rubber circle (4).

3. The vortex shedding flowmeter of claim 1, wherein: one end of the sleeve pipe (7) corresponding to the pipeline (8) is of a flaring structure, and the inner wall of the sleeve pipe (7) is tightly attached to the surface of the pipeline (8).

4. The vortex shedding flowmeter of claim 1, wherein: the surface that first ring flange (9) were kept away from in bolt (11) has cup jointed gasket (12), gasket (12) are close to the first damping spring (13) of one end fixedly connected with of first ring flange (9), and first damping spring (13) fixed connection is in the one end of second ring flange (10), the one end fixedly connected with nut (14) of second ring flange (10) are kept away from in first ring flange (9), and the surface threaded connection of the inner wall of nut (14) and bolt (11), the one end fixedly connected with shock pad (15) that second ring flange (10) are close to first ring flange (9), and the surface of shock pad (15) closely laminates with the one end of first ring flange (9).

5. The vortex shedding flowmeter of claim 1, wherein: mounting groove (16) have all been seted up to the one end of first ring flange (9) and second ring flange (10) opposite face, the inner wall fixedly connected with movable sleeve (17) of mounting groove (16) in second ring flange (10), the inner wall fixedly connected with second damping spring (18) of movable sleeve (17), the one end activity laminating of second damping spring (18) has movable rod (19), and movable rod (19) activity is pegged graft at the inner wall of movable sleeve (17), the inner wall of mounting groove (16) in first ring flange (9) is fixed connection to movable rod (19).

6. The vortex shedding flowmeter of claim 1, wherein: the watch body (2) comprises a vibration sensor (21) and a sensor detecting head (22), the vibration sensor (21) is fixedly connected to the surface of the shell (1), and the sensor detecting head (22) is arranged inside the shell (1).

7. The vortex shedding flowmeter of claim 6, wherein: the output ends of the vibration sensor (21) and the sensor probe (22) are connected with a charge amplification module (23), the output end of the charge amplification module (23) is connected with a control module (24), and the output end of the control module (24) is connected with a display module (25).

8. The vortex shedding flowmeter of claim 7, wherein: the control module (24) comprises a duplication checking module (241), a logic judgment module (242), a filtering module (243) and a single chip microcomputer (244), wherein the duplication checking module (241) is used for detecting the same signal frequency of the sensor probe (22) and the vibration sensor (21), the logic judgment module (242) is used for judging whether the same frequency signal detected by the duplication checking module (241) is a vibration signal, and the filtering module (243) is used for filtering a part of the vibration sensor (21) which is the vibration signal.

9. The vortex shedding flowmeter of claim 7, wherein: the charge amplification module (23) is used for amplifying the electric signals of the vibration sensor (21) and the sensor probe (22) and transmitting the amplified signals to the control module (24).

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