CN215865335U

CN215865335U - High-pressure flowmeter

Info

Publication number: CN215865335U
Application number: CN202122337465.4U
Authority: CN
Inventors: 伍正辉; 侯飞; 陈明
Original assignee: SHANGHAI ZHAOHUI PRESSURE APPARATUS CO Ltd
Current assignee: SHANGHAI ZHAOHUI PRESSURE APPARATUS CO Ltd
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2022-02-18
Anticipated expiration: 2031-09-26

Abstract

The utility model discloses a high-pressure flowmeter, which relates to the technical field of flowmeters and comprises a flowmeter body, a filter screen mechanism, an impeller seat, an impeller, a magnet and a Hall magnetic sensor, wherein the flowmeter body is provided with the impeller seat, one end of the impeller seat extends into the flowmeter body, one end of the impeller seat is provided with the impeller, the other end of the impeller seat is provided with the Hall magnetic sensor, the end part of a blade of the impeller is provided with the magnet, the other end of the impeller seat is also sleeved with a shell, the interior of the flowmeter body is provided with the filter screen mechanism, and the filter screen mechanism is positioned at a medium inlet. The high-pressure flowmeter has the advantages of high-pressure fluid impact resistance, high corrosion resistance, high pressure resistance and high precision, the arranged filter screen mechanism has a good function of filtering impurities, the abrasion of the impurities to product parts is reduced, the long-term stable and reliable operation of the product is ensured, and the service life of the product is prolonged.

Description

High-pressure flowmeter

Technical Field

The utility model relates to the technical field of flowmeters, in particular to a high-pressure flowmeter.

Background

The traditional flowmeter main part of present widely used is mostly stainless steel or cast iron material, and corrosion resistance is poor, and the complex price of processing technology is higher, and the easy welding deformation of course of working influences the precision, and the metal main part can disturb hall element's signal reception simultaneously.

Traditional flowmeter, the precision is not high, and compressive strength is not enough, and requires higher to quality of water, is blocked by impurity, silt of aquatic easily, and the reliability is poor, needs often to dismantle and washs the maintenance.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a high pressure flow meter, which solves the above problems.

The technical scheme adopted by the utility model is as follows:

the utility model provides a high-pressure flow meter, includes flowmeter body, filter screen mechanism, impeller seat, impeller, magnet and hall magnetism and feels the sensor, be equipped with on the flowmeter body the impeller seat, the one end of impeller seat extends to inside the flowmeter body, the one end of impeller seat is equipped with the impeller, the other end are equipped with hall magnetism feels the sensor, the blade tip of impeller is equipped with magnet, the other end of impeller seat still overlaps and is equipped with the shell, the inside of flowmeter body is equipped with filter screen mechanism, filter screen mechanism is located the medium entrance.

Preferably, the magnetic induction hall sensor further comprises a circuit board assembly and a plug-in module, wherein the circuit board assembly is arranged in the shell, the plug-in module is arranged on one side of the shell, and the circuit board assembly is electrically connected with the plug-in module and the hall magnetic induction sensor.

Preferably, one end of the impeller seat is provided with a mounting hole for mounting the impeller, the mounting hole is arranged along the medium flowing direction, and one end of the impeller seat is further provided with a through hole which is perpendicular to the mounting hole.

As a further preference, the impeller includes the impeller shaft and the cover is established the oilless self-lubricating axle sleeve at impeller shaft both ends, and two the oilless self-lubricating axle sleeve is located in the through-hole.

Preferably, the impeller structure further comprises a sensor seat, the Hall magnetic sensor is mounted at the other end of the impeller seat through the sensor seat, and the Hall magnetic sensor and the sensor seat are fixed through epoxy resin glue.

Preferably, the circuit board assembly comprises a conditioning circuit and a single chip board, the single chip board is connected with the hall magnetic induction sensor through a contact pin, and the conditioning circuit is fixed on the single chip board through the contact pin.

As a further preferred option, the plug-in module includes a plug-in seat and an aviation plug-in detachably connected to the plug-in seat, the plug-in seat is fixed to one side of the housing, and the silica gel wire on the conditioning circuit is connected to the aviation plug-in.

Preferably, the device further comprises an upper cover, the upper cover is arranged at the upper end of the outer shell, and a first O-shaped ring is arranged between the upper cover and the outer shell.

Preferably, the impeller further comprises a second O-ring, and the second O-ring is arranged between the outer edge of the other end of the impeller seat and the inner wall of the shell.

Preferably, the flowmeter further comprises a third O-shaped ring and a split washer, and the third O-shaped ring and the split washer are arranged between the outer edge of one end of the impeller seat and the inner wall of the flowmeter body.

The technical scheme has the following advantages or beneficial effects:

the high-pressure flowmeter has the advantages of high-pressure fluid impact resistance, high corrosion resistance, high pressure resistance and high precision, and the arranged filter screen mechanism has a good function of filtering impurities, so that the abrasion of the impurities on product parts is reduced, the long-term stable and reliable operation of the product is ensured, and the service life of the product is prolonged.

Drawings

FIG. 1 is a schematic view of the forward internal structure of a high pressure flowmeter of the present invention;

FIG. 2 is a schematic side view of the high pressure flow meter of the present invention;

fig. 3 is a side view of the internal structure of the high pressure flow meter of the present invention.

In the figure: 1. a flowmeter body; 2. a filter screen mechanism; 3. an impeller seat; 4. an impeller; 5. a magnet; 6. a Hall magnetic induction sensor; 7. a housing; 8. mounting holes; 9. an impeller shaft; 10. an oil-free self-lubricating shaft sleeve; 11. a sensor seat; 12. a conditioning circuit; 13. a plug-in seat; 14. an aviation plug-in; 15. an upper cover; 16. a first O-ring; 17. a second O-ring; 18. a third O-ring; 19. a split washer; 20. a first inner hexagonal cone end fastening screw; 21. a second inner hexagonal cone end fastening screw; 22. a first socket head cap screw; 23. and a through hole.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

FIG. 1 is a schematic view of the forward internal structure of a high pressure flowmeter of the present invention; FIG. 2 is a schematic side view of the high pressure flow meter of the present invention; fig. 3 is a schematic diagram of a side view internal structure of a high-pressure flowmeter according to the present invention, please refer to fig. 1 to 3, which show a high-pressure flowmeter comprising a flowmeter body 1, a filter screen mechanism 2, an impeller seat 3, an impeller 4, a magnet 5, a hall magnetic sensor 6 (hall sensor), a circuit board assembly and a plug-in module, wherein the flowmeter body 1 is provided with the impeller seat 3, one end of the impeller seat 3 extends into the flowmeter body 1, the other end is provided with the hall magnetic sensor 6, one end of the impeller seat 3 is provided with the impeller 4, the blade end of the impeller 4 is provided with the magnet 5, the other end of the impeller seat 3 is further sleeved with a housing 7, the circuit board assembly is arranged in the housing 7, one side of the housing 7 is provided with the plug-in module, the circuit board assembly is electrically connected with the plug-in module and the hall magnetic sensor 6, the filter screen mechanism 2 is arranged in the flowmeter body 1, the filter screen mechanism 2 is located at the medium inlet. In this embodiment, as shown in fig. 1 and 3, two sides of the flowmeter body 1 can be used for connecting external pipelines, an installation groove for installing the impeller seat 3 is formed in the middle of the upper end of the flowmeter body 1, and the impeller seat 3 is connected with the flowmeter body 1 through a first socket head cap screw 22. Impeller 4 and impeller seat 3 between detachably be connected, filter screen mechanism 2 and flowmeter body 1 detachably be connected, as shown in fig. 1, filter screen mechanism 2 is the stainless steel filter screen, high pressure fluid resistant strikes for impurity among the filter medium reduces impurity and causes wearing and tearing to the product part, guarantees the long-term stable and reliable operation of product, increases product life. In the embodiment, a certain preset distance is kept between the hall magnetic induction sensor 6 and the magnet 5 on the blade, so that the effect generated by the magnet 5 and the hall sensor is not influenced, and the precision of the product is influenced. In the embodiment, seven blades are arranged, the blades are connected with the magnet 5 through injection molding, and seven pulse signals can be output every time the impeller 4 rotates for one circle, so that the product has high precision.

The high-pressure flowmeter in the embodiment is a flow measurement and control product integrating flow measurement, output and control. The Hall magnetic induction effect output pulse signals are generated by the magnets 5 on the blades and the Hall magnetic induction sensors 6, the output pulse signals are processed by a microprocessor with high precision, high speed and low time delay, the relationship between the flow speed, pressure, pipe diameter, flow and pulse is calculated through calibration, the generated flow can be calculated by the pulse number, and the system flow is measured and controlled by remote monitoring and control of signals subjected to operation processing. The device is flexible to use, simple to operate, easy to debug, safe and reliable. The device is widely applied to the industries of coal mine emulsion, chemical engineering, mechanical equipment and the like, and is used for measuring and controlling the flow of a fluid medium.

Further, as a preferred embodiment, one end of the impeller seat 3 is provided with a mounting hole 8 for mounting the impeller 4, the mounting hole 8 is arranged along the medium flowing direction, one end of the impeller seat 3 is further provided with a through hole 23, and the through hole 23 is perpendicular to the mounting hole 8.

Further, as a preferred embodiment, the impeller 4 includes an impeller shaft 9 and oil-free self-lubricating shaft sleeves 10 sleeved at two ends of the impeller shaft 9, and the two oil-free self-lubricating shaft sleeves 10 are located in the through hole 23. The oil-free self-lubricating shaft sleeve 10 in the embodiment is made of a self-lubricating copper alloy material, is in interference fit with the through hole 23, is in clearance fit with the impeller shaft 9, has a good lubricating effect, enables the impeller shaft 9 to flexibly rotate, and can avoid friction between the impeller shaft 9 and the impeller seat 3, so that abrasion of parts is reduced, impact resistance is realized, good abrasion resistance and corrosion resistance are realized, and long-term normal and stable operation of products is guaranteed. The blades are annularly distributed on the outer edge of the impeller shaft 9, the blades and the magnet 5 are designed in an injection molding full-wrapping structure, so that the magnet 5 and the blades are integrated, the condition that the magnet 5 is loosened and falls off in high-speed rotation of the impeller 4 is avoided, metal substances possibly exist in a medium, the magnet 5 can be prevented from adsorbing the metal substances in high-pressure fluid, the blades are prevented from being clamped due to long-time adsorption, and the long-term stable and reliable operation of a product is ensured. Secondly, the impeller shaft 9 in the application adopts zirconia material, and density is little, and coefficient of friction is low, and self-lubricity is good, can with the axle sleeve very light, very nimble rotation, non-magnetism nature, insulating nature are strong, can not produce the magnetic interference phenomenon to magnet 5 and hall sensor, have very high intensity, hardness, toughness and excellent chemical corrosion nature and wearability simultaneously.

Further, as a preferred embodiment, the sensor device further comprises a sensor seat 11, the hall magnetic sensor 6 is mounted at the other end of the impeller seat 3 through the sensor seat 11, and the hall magnetic sensor 6 and the sensor seat 11 are fixed through epoxy resin glue. In the embodiment, glue filling and filling designs are adopted between the Hall magnetic sensor 6 and the sensor seat 11 and between the circuit board assembly and the shell 7, so that accidental water inflow can be prevented, and the long-term stable and reliable operation of the product is ensured.

Further, as a preferred embodiment, the circuit board assembly includes a conditioning circuit 12 and a single chip board, the single chip board is connected with the hall magnetic sensor 6 through a pin, and the conditioning circuit 12 is fixed on the single chip board through a pin.

Further, as a preferred embodiment, the card module includes a card base 13 and an aviation card 14 detachably connected to the card base 13, the card base 13 is fixed on one side of the housing 7, and the silicone wire on the conditioning circuit 12 is connected to the aviation card 14.

Further, as a preferred embodiment, the device further comprises an upper cover 15, the upper end of the outer shell 7 is provided with the upper cover 15, and a first O-ring 16 is arranged between the upper cover 15 and the outer shell 7.

Further, as a preferred embodiment, a second O-ring 17 is further included, and the second O-ring 17 is disposed between the outer edge of the other end of the impeller seat 3 and the inner wall of the housing 7.

Further, as a preferred embodiment, a third O-ring 18 and a split retaining ring 19 are further included, and the third O-ring 18 and the split retaining ring 19 are arranged between the outer edge of one end of the impeller seat 3 and the inner wall of the flowmeter body 1. In this embodiment, through the setting of first O type circle 16, second O type circle 17, third O type circle 18 and split washer 19 for high pressure flowmeter has very high dustproof waterproof ability, and the protection level can reach IP67, can stop dust or water smoke entering product inside influence circuit stability, guarantees the long-term reliable and stable operation of product, increases product life.

Further, as a preferred embodiment, the housing 7 and the impeller seat 3 are connected by a first hexagon socket head cap set screw 20, the upper cover 15 and the housing 7 are connected by a second hexagon socket head cap set screw 21, and the insert seat 13 and the housing 7 are fixed by laser welding.

Further, as a preferred embodiment, the flowmeter further comprises a plurality of strong magnetic members, and the outer edge of the medium inlet in the flowmeter body 1 is provided with the plurality of strong magnetic members for adsorbing metal impurities in the medium and preventing the metal impurities from being adsorbed on the blades of the impeller 4. The strong magnetic part is detachably connected with the flowmeter body 1, so that the strong magnetic part can be conveniently detached to remove metal impurities on the surface of the strong magnetic part.

The high pressure flowmeter in this embodiment is for the flowmeter that can two-way measurement, and no medium flow direction restriction can two-way measurement fluid medium flow, and the blade adopts the nylon material, can with form interference fit between the impeller shaft 9 to the blade and the impeller shaft 9 condition of skidding appear in rotatory in-process, this material intensity is high simultaneously, toughness is good, has very strong absorption impact and stress vibration's ability, outstanding fatigue resistance, corrosion-resistant, ageing resistance. The flowmeter body 1 is designed by adopting a square stainless steel structure, is resistant to high-pressure fluid impact and corrosion, is convenient for product installation, improves the stability of product installation, and ensures long-term stable and reliable operation of products.

The high pressure flowmeter in this embodiment has the advantages of high pressure resistance and high accuracy, and the data shown in the following table is official calibration measurement data:

the high pressure flow meter of this application when the assembly, at first with oilless self-lubricating axle sleeve 10 through the pin strike inlay in the through-hole 23 of impeller seat 3, make it form interference fit with impeller seat 3, reuse electric hand drill (3mm drill bit) will inlay oilless self-lubricating axle sleeve 10 and aim at the center, get rid of the hole deformation that inlays the in-process and cause. However, the impeller 4 of the injection molding magnet 5 is soaked in hot water for two minutes and is fixed through thermal expansion assembly, the impeller shaft 9 penetrates through the center holes of the oil-free self-lubricating shaft sleeve 10 and the impeller 4, the impeller shaft 9 and the oil-free self-lubricating shaft sleeve 10 are in clearance fit, the impeller 4 is in fastening fit with the impeller shaft 9 after being cooled, the impeller seat 3 is fixed on the flowmeter body 1 through a first hexagon socket head cap screw 22, the rotation direction of the impeller 4 is consistent with the flow direction of a medium, and a third O-shaped ring 18 and an open retainer ring 19 are arranged between the impeller seat 3 and the flowmeter body 1 for sealing. The sensor seat 11 is arranged on the impeller seat 3, the Hall magnetic sensor 6 is arranged in the sensor seat 11, the Hall magnetic sensor 6 is consistent with the flow direction of a medium, the Hall magnetic sensor 6 is fixed in the sensor seat 11 by pouring epoxy resin glue which is proportioned according to a certain proportion in the sensor seat 11, the singlechip board is fixed on the Hall magnetic sensor 6 through a pin, and the conditioning circuit 12 is fixed on the singlechip board through a pin, so that a circuit board assembly is formed.

Secondly, the plug-in seat 13 is welded on the shell 7 through laser welding, a second O-shaped ring 17 is arranged between the impeller seat 3 and the shell 7 for sealing, then the shell 7 is fixed on the impeller seat 3 through a first inner hexagonal cone end fastening screw 20, a first O-shaped ring 16 is arranged between the shell 7 and the upper cover 15 for sealing, then the upper cover 15 is fixed on the shell 7 through a second inner hexagonal cone end fastening screw 21, a silica gel lead on the board of the conditioning circuit 12 is connected to the aviation plug-in 14, then the aviation plug-in is screwed on the plug-in seat 13, and finally the stainless steel filter screen mechanism 2 is placed at a medium inlet of the flowmeter body 1 to complete assembly.

While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a high pressure flowmeter, its characterized in that, includes flowmeter body, filter screen mechanism, impeller seat, impeller, magnet and hall magnetism and feels the sensor, be equipped with on the flowmeter body the impeller seat, the one end of impeller seat extends to inside the flowmeter body, the one end of impeller seat is equipped with the impeller, the other end are equipped with hall magnetism feels the sensor, the blade tip of impeller is equipped with magnet, the other end of impeller seat still overlaps and is equipped with the shell, the inside of flowmeter body is equipped with filter screen mechanism, filter screen mechanism is located the medium entrance.

2. The high pressure flow meter of claim 1, further comprising a circuit board assembly and a plug-in module, the circuit board assembly being disposed within the housing, the plug-in module being disposed on a side of the housing, the circuit board assembly being electrically connected to the plug-in module and the hall magneto-inductive sensor.

3. The high pressure flowmeter of claim 1, wherein one end of the impeller seat is provided with a mounting hole for mounting the impeller, the mounting hole is arranged along a medium flow direction, and one end of the impeller seat is further provided with a through hole perpendicular to the mounting hole.

4. The high pressure flow meter according to claim 3, wherein the impeller comprises an impeller shaft and oil-free and self-lubricating shaft sleeves sleeved at two ends of the impeller shaft, and the two oil-free and self-lubricating shaft sleeves are positioned in the through hole.

5. The high pressure flowmeter of claim 1, further comprising a sensor mount, wherein the hall magnetic sensor is mounted at the other end of the impeller mount through the sensor mount, and the hall magnetic sensor is fixed to the sensor mount through an epoxy glue.

6. The high pressure flowmeter of claim 2, wherein the circuit board assembly comprises a conditioning circuit and a single-chip board, the single-chip board is connected to the hall magneto-inductive sensor via pins, and the conditioning circuit is fixed to the single-chip board via pins.

7. The high pressure flow meter of claim 6, wherein the plug-in module includes a plug-in base and an aircraft plug-in removably connected to the plug-in base, the plug-in base being secured to one side of the housing, the silicone wire on the conditioning circuit being connected to the aircraft plug-in.

8. The high pressure flow meter of claim 1, further comprising an upper cover, wherein the upper cover is disposed at an upper end of the housing, and wherein a first O-ring is disposed between the upper cover and the housing.

9. The high pressure flow meter according to claim 1, further comprising a second O-ring disposed between an outer edge of the other end of the impeller seat and an inner wall of the housing.

10. The high pressure flow meter according to claim 1, further comprising a third O-ring and a split washer, wherein the third O-ring and the split washer are disposed between an outer edge of one end of the impeller seat and an inner wall of the flow meter body.