CN112525280A

CN112525280A - Impeller flowmeter

Info

Publication number: CN112525280A
Application number: CN202011418630.2A
Authority: CN
Inventors: 李瑰兰
Original assignee: Xian Yongxin Technology Co Ltd
Current assignee: Xian Yongxin Technology Co Ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-03-19

Abstract

The invention discloses an impeller flowmeter which comprises a shell, wherein a plurality of first rotating shafts are fixedly arranged inside a rotating disc, second blades are fixedly sleeved outside the first rotating shafts, one side of the bottom of each second blade is fixedly connected with the corresponding second rotating shaft, the first blades are sleeved outside the corresponding second rotating shafts, one side of the middle part of each first blade is fixedly connected with a buffer rod, and the bottom end of each buffer rod is fixedly connected with the inside of the rotating disc. The casing and the mounting seat are detachably designed, the impeller is convenient to replace and maintain, the mounting seat and the impeller are arranged on the two sides of the casing, the flow velocity on the two sides of the inner wall of the casing can be detected, the average value is obtained for measurement, the measurement is more accurate, meanwhile, the scraping needle is arranged in the mounting seat, impurities adhered to the impeller can be cleaned, the waste can be conveniently cleaned by matching with the collecting casing, the impeller is a double-blade type impeller which can be contracted, the impact of water flow is reduced, the strength of the blade is improved, and the blade is not easy to damage.

Description

Impeller flowmeter

Technical Field

The invention relates to an impeller flowmeter, in particular to an impeller flowmeter, and belongs to the technical field of flowmeters.

Background

The flowmeter is one of important meters in industrial measurement, is commonly used in the market at present and is used for measuring the volume flow of liquid which is filled in a closed pipeline and continuously flows, but the liquid with low viscosity and corrosion resistance is not easy to measure, along with the development and progress of industrial production, the requirements on the accuracy and the range of flow measurement are higher and higher, the flow measurement technology is different day by day, and various types of flowmeters are successively produced in order to adapt to various purposes; the number of the flow meters put into use at present exceeds 100; the existing impeller flowmeter belongs to a mature technology, and mainly relates to a flowmeter applied to the fields of petroleum, chemical engineering, smelting and the like. The magnetic flux in the detecting coil is periodically changed to generate periodic induced potential, i.e. electric grazing signal, which is amplified by amplifier and then sent to display instrument for display.

The invention discloses a scraping impeller flowmeter with the publication number of CN107621291A, which effectively solves the technical problems that the traditional impeller flowmeter has high processing difficulty and cost, the measurement precision is increased by the external influence, and liquid is easy to flow back and leak back in the rotating process of the impeller and the stirring is larger; the publication No. CN107036663A discloses a soft impeller flowmeter, which has the characteristics of high measurement precision, low installation cost and suitability for fluid measurement in various complex environments; the publication No. CN 106500778A discloses an impeller type does not have magnetism flowmeter, through designing multistage sealing washer, has realized the multistage waterproof sealing of flowmeter, and overall design is compact, ingenious, under the condition of no screw fixation, realizes multistage sealing through the mode of rotational positioning, has accomplished the IP67 protection to circuit and sensor, and the impeller structure is unique, operates steadily, and the inception flow is low, and range ratio and measuring sensitivity are high.

The existing impeller flowmeter is generally provided with an impeller on one side of a shell, the impeller and the shell are fixedly arranged and cannot be detached, the roughness of two sides of the inner wall of the shell is different from the design curvature, the flow velocity of fluid close to two sides of the inner wall of the shell is inconsistent, the unilateral measurement has measurement deviation, and an impurity removal device is not cleaned inside the impeller, so that the impeller flowmeter is used for a long time, and external impurities are adhered on blades to influence the rotation of the blades and influence the measurement.

Disclosure of Invention

The invention aims to provide an impeller flowmeter, which aims to solve the problems that the conventional impeller flowmeter in the background art is generally provided with an impeller on one side of a shell, the impeller and the shell are fixedly arranged and cannot be disassembled, the flow velocity of fluid close to two sides of the inner wall of the shell is inconsistent due to different roughness and design curvature of the two sides of the inner wall of the shell, the measurement deviation exists on one-side measurement, no cleaning and impurity removing device is arranged in the impeller flowmeter, and the impeller flowmeter is used for a long time, so that external impurities are adhered to blades, influence is caused on the rotation of the blades, and the measurement is influenced.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an impeller flowmeter, includes the casing, the middle part on casing top and the equal fixed mounting in middle part of bottom have the mount pad, the fixed bull stick that is equipped with in inside of mount pad, the impeller has been cup jointed in the outside activity of bull stick, the impeller comprises carousel, first blade, second blade and buffer beam, the inside fixed mounting of carousel has a plurality of first pivots, and is a plurality of the outside of first pivot is all fixed the cup joint has the second blade, one side fixedly connected with second pivot of second blade bottom, first blade has been cup jointed to the outside of second pivot, one side fixedly connected with buffer beam at first blade middle part, just the bottom of buffer beam and the inside fixed connection of carousel.

As a preferable aspect of the present invention, an inclined groove is formed at an edge side of the first blade.

As a preferable technical scheme of the invention, a flow signal sensor is fixedly arranged on one side of the top of the shell.

As a preferred technical scheme of the invention, one end of the shell is fixedly connected with a water inlet pipe, and the other end of the shell is fixedly provided with a water outlet pipe.

As a preferred technical scheme of the invention, an inner groove is formed in the mounting seat, two cross rods are fixedly mounted in the inner groove, vertical plates are fixedly connected to two sides of the top ends of the two cross rods, and a scraping needle is fixedly mounted on one side of each vertical plate.

As a preferable technical scheme of the invention, a through groove is formed in one side of the cross rod, an aggregate shell is fixedly connected to the outer side of the mounting seat, and the aggregate shell is communicated with the through groove.

Compared with the prior art, the invention has the beneficial effects that:

according to the impeller flowmeter, the casing and the mounting seats are detachably designed, the impeller is convenient to replace and maintain, the mounting seats and the impeller are arranged on the two sides of the casing, the flow velocity on the two sides of the inner wall of the casing can be detected, the average value is measured, the measurement is more accurate, meanwhile, the scraping needle is arranged inside the mounting seats, impurities adhered to the impeller can be cleaned, the waste materials can be conveniently cleaned by matching with an aggregate casing, the impeller is a double-blade type impeller which can be contracted, the impact of water flow is reduced, the strength of the blade is improved, and the blade is not easy to damage.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the impeller of the present invention;

fig. 3 is a schematic view of the internal structure of the mounting base of the present invention.

In the figure: 1. a housing; 2. a mounting seat; 3. an aggregate shell; 4. a flow signal sensor; 5. a water inlet pipe; 6. a rotating rod; 7. an impeller; 8. a water outlet pipe; 9. a first blade; 10. a chute; 11. a buffer rod; 12. a cross bar; 13. a vertical plate; 14. scraping a needle; 15. an inner tank; 16. a second blade; 17. a turntable.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

Embodiment 1 is as shown in fig. 1-2, an impeller flowmeter, including casing 1, casing 1 top's middle part and the middle part of bottom are equal fixed mounting has mount pad 2, the inside of mount pad 2 is fixed and is equipped with bull stick 6, bull stick 6's outside activity has cup jointed impeller 7, impeller 7 is by carousel 17, first blade 9, second blade 16 and buffer beam 11 are constituteed, the inside fixed mounting of carousel 17 has a plurality of first pivots, the outside of a plurality of first pivots has all cup jointed second blade 16, one side fixedly connected with second pivot of second blade 16 bottom, first blade 9 has been cup jointed to the outside of second pivot, one side fixedly connected with buffer beam 11 at first blade 9 middle part, and the bottom of buffer beam 11 and the inside fixed connection of carousel 17.

In example 2, as shown in fig. 2, an inclined groove 10 is formed on the side of the first blade 9 in addition to example 1.

Embodiment 3 as shown in fig. 1, a flow rate signal sensor 4 is fixedly mounted on one side of the top of the housing 1 in addition to embodiment 1.

Embodiment 4 as shown in fig. 1, on the basis of embodiment 1, one end of the housing 1 is fixedly connected with a water inlet pipe 5, and the other end of the housing 1 is fixedly provided with a water outlet pipe 8.

In embodiment 5, as shown in fig. 3, an inner groove 15 is formed in the mounting base 2, two cross bars 12 are fixedly mounted in the inner groove 15, vertical plates 13 are fixedly connected to two sides of the top ends of the two cross bars 12, and a scraping needle 14 is fixedly mounted on one side of the vertical plate 13 on the basis of embodiment 1.

In embodiment 6, on the basis of embodiment 5, as shown in fig. 1 and 3, a through groove is formed in one side of the cross bar 12, the aggregate shell 3 is fixedly connected to the outer side of the mounting seat 2, and the aggregate shell 3 is communicated with the through groove.

Embodiment 7 is as shown in fig. 1 to 3, the impeller flowmeter includes a casing 1, where a mounting base 2 is fixedly mounted in the middle of the top end and the middle of the bottom end of the casing 1, a rotating rod 6 is fixedly mounted in the mounting base 2, an impeller 7 is movably sleeved on the outside of the rotating rod 6, the impeller 7 is composed of a turntable 17, first blades 9, second blades 16 and a buffer rod 11, a plurality of first rotating shafts are fixedly mounted in the turntable 17, the second blades 16 are fixedly sleeved on the outside of the first rotating shafts, one side of the bottom of the second blades 16 is fixedly connected with a second rotating shaft, the first blades 9 are sleeved on the outside of the second rotating shaft, the buffer rod 11 is fixedly connected to one side of the middle of the first blades 9, the bottom end of the buffer rod 11 is fixedly connected to the inside of the turntable 17, and a chute 10 is formed in the side of the first blades 9;

one side fixed mounting at 1 top of casing has flow signal sensor 4, the one end fixedly connected with inlet tube 5 of casing 1, the other end fixed mounting of casing 1 has outlet pipe 8, inside groove 15 has been seted up to the inside of mount pad 2, the inside fixed mounting of inside groove 15 has two horizontal poles 12, the equal fixedly connected with riser 13 in both sides on two horizontal poles 12 tops, one side fixed mounting of riser 13 scrapes needle 14, logical groove has been seted up to one side of horizontal pole 12, the outside fixedly connected with of mount pad 2 gathers materials shell 3, and it communicates with each other with logical groove to gather materials shell 3.

When the impeller flowmeter is used in detail, the shell 1 and the mounting seat 2 are designed in a detachable mode, the impeller 7 in the shell 1 can be replaced and maintained conveniently, the mounting seat 2 and the impeller 7 are arranged on the two sides of the shell 1, the flow velocity on the two sides of the inner wall of the shell 1 can be detected, the average value is measured, the measurement is more accurate, the scraping needle 14 is arranged in the mounting seat 2, when the impeller 7 rotates and passes through the scraping needle 14, impurities adhered to the impeller 7 can be cleaned, waste materials can be cleaned conveniently by matching with the collecting shell 3, the impeller 7 is a double-piece type retractable impeller 7, on one hand, impact of water flow is reduced, on the other hand, the strength of blades is improved, the impeller is not easy to damage, the flow signal sensor 4 is a magnetoelectric sensor, when the flowmeter works, the impeller 7 generates a magnetic induction pulse signal by cutting a magnetic induction line, the magnetoelectric sensor converts the magnetic induction pulse signal into, and displaying the electrical signal through the fluid flow data.

In the description of the present invention, it is to be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings and are only for convenience in describing the present invention and simplifying the description, but are not intended to indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An impeller flowmeter comprises a shell (1) and is characterized in that the middle of the top end and the middle of the bottom end of the shell (1) are both fixedly provided with a mounting seat (2), a rotating rod (6) is fixedly arranged inside the mounting seat (2), an impeller (7) is movably sleeved outside the rotating rod (6), the impeller (7) consists of a rotating disc (17), a first blade (9), a second blade (16) and a buffer rod (11), a plurality of first rotating shafts are fixedly arranged inside the rotating disc (17), second blades (16) are fixedly sleeved outside the first rotating shafts, one side of the bottom of the second blade (16) is fixedly connected with a second rotating shaft, the outside of the second rotating shaft is sleeved with the first blade (9), one side of the middle part of the first blade (9) is fixedly connected with a buffer rod (11), and the bottom end of the buffer rod (11) is fixedly connected with the inside of the turntable (17).

2. An impeller flow meter according to claim 1, wherein: the side of the first blade (9) is provided with a chute (10).

3. An impeller flow meter according to claim 1, wherein: and a flow signal sensor (4) is fixedly mounted on one side of the top of the shell (1).

4. An impeller flow meter according to claim 1, wherein: one end fixedly connected with inlet tube (5) of casing (1), the other end fixed mounting of casing (1) has outlet pipe (8).

5. An impeller flow meter according to claim 1, wherein: an inner groove (15) is formed in the mounting seat (2), two transverse rods (12) are fixedly mounted in the inner groove (15), vertical plates (13) are fixedly connected to the two sides of the top ends of the transverse rods (12), and scraping needles (14) are fixedly mounted on one sides of the vertical plates (13).

6. An impeller flow meter according to claim 5, wherein: a through groove is formed in one side of the cross rod (12), a material collecting shell (3) is fixedly connected to the outer side of the mounting seat (2), and the material collecting shell (3) is communicated with the through groove.

7. The impeller flowmeter according to claim 1, comprising a housing (1), wherein the housing (1) is fixedly provided with a mounting base (2) at the middle of the top end and the middle of the bottom end, the mounting base (2) is internally and fixedly provided with a rotating rod (6), an impeller (7) is movably sleeved on the outside of the rotating rod (6), the impeller (7) is composed of a turntable (17), first blades (9), second blades (16) and a buffer rod (11), the turntable (17) is internally and fixedly provided with a plurality of first rotating shafts, the plurality of first rotating shafts are externally and fixedly sleeved with the second blades (16), one side of the bottom of the second blades (16) is fixedly connected with the second rotating shaft, the second rotating shaft is externally sleeved with the first blades (9), one side of the middle of the first blades (9) is fixedly connected with the buffer rod (11), the bottom end of the buffer rod (11) is fixedly connected with the inside of the rotary table (17), and the side of the first blade (9) is provided with a chute (10);

one side fixed mounting at casing (1) top has flow signal sensor (4), the one end fixedly connected with inlet tube (5) of casing (1), the other end fixed mounting of casing (1) has outlet pipe (8), inside groove (15) have been seted up to the inside of mount pad (2), the inside fixed mounting of inside groove (15) has two horizontal poles (12), two the equal fixedly connected with riser (13) in both sides on horizontal pole (12) top, one side fixed mounting of riser (13) has scrapes needle (14), logical groove has been seted up to one side of horizontal pole (12), the outside fixedly connected with of mount pad (2) gathers materials shell (3), just it communicates with each other with logical groove to gather materials shell (3).