CN215524719U

CN215524719U - 12-blade spiral vortex streamline type acceleration high-temperature-resistant precision flow sensor

Info

Publication number: CN215524719U
Application number: CN202121580685.3U
Authority: CN
Inventors: 金凌
Original assignee: Foshan Jin Gate Water Purification Equipment Co ltd
Current assignee: Foshan Jin Gate Water Purification Equipment Co ltd
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2022-01-14
Anticipated expiration: 2031-07-05

Abstract

A12-blade spiral vortex streamline accelerating high-temperature-resistant precise flow sensor mainly comprises a support, a shell, a magnet, a spiral impeller, a shaft, an electromagnetic inductor and a sealing ring, and is characterized in that a spiral water channel is arranged between a water inlet pipeline and the spiral impeller, the spiral water channel and the spiral impeller form a streamline accelerating vortex water flow thrust and impact system, and a streamline accelerating vortex water flow thrust force is formed when water flows through the water inlet pipeline and passes through the spiral water channel, so that the spiral impeller rotates more strongly and more precisely under the streamline accelerating vortex water flow thrust and impact. The 12-blade spiral vortex streamline type acceleration high-temperature-resistant precision flow sensor is simple and compact in structure, good in production manufacturability, easy to assemble and good in application prospect.

Description

12-blade spiral vortex streamline type acceleration high-temperature-resistant precision flow sensor

Technical Field

The utility model discloses a 12-blade spiral vortex streamline type acceleration high-temperature-resistant precision flow sensor, relates to the technical field of water treatment, and more particularly relates to the application field of flow meters of commercial water dispensers, coffee makers, household water purifiers and household water heaters.

Background

The drinking water and water purification industry is vigorously developed in China, and the flow meter is widely applied to the commercial and household drinking water and water purification industries. In the information age of internet of things, flow meters are used in charging and billing systems, such as: intelligent water meter, fee-charging drinking machine, etc. The flowmeter can be used for accurately measuring the flow and conveniently measuring the service life of the filter element, so that a user is accurately prompted to maintain the water purifier and replace the filter element.

The existing flowmeter is generally low in metering precision, particularly insensitive to small flow reaction, difficult to start when the flow rate is less than 100mL/min, and inaccurate in metering even if the flow rate can be started. The existing flow meter has the following problems: when used on vending machines to sell beverages, coffee, drinking water, many vendors reflect: the pulse signal cannot be sent out when the flow is small, and the consumption cost of a customer cannot be accurately collected, so that great economic loss is brought to a seller. Small flow accurate meters are either very expensive or have a narrow flow range that does not meet the user's needs. How to develop a flowmeter which has good economical efficiency, small flow, accurate starting and wide flow range is a bottleneck problem in flowmeter technology.

How to break through and innovate on the basis of the prior flowmeter technology and challenge the bottleneck of domestic and international flowmeter technology is the key point of the core content and technical innovation of the utility model.

In the existing two flow sensors, an impeller is provided with 4-8 blades: as shown in fig. 5 and 6, 201820328537.4-a 0.5 hour flow sensor and 202022680944.1-a U-shaped screw snap flow sensor, as shown in fig. 8, work according to the following principles: the water flow passes through the helical impeller (20 in fig. 6 and 31 in fig. 8) to generate a helical thrust force which is only not accelerated by the water flow, so that the helical impeller rotates.

Still another existing flow sensor has an internal structure as shown in fig. 7, and its working principle is as follows: the water flow passes through the helical water channel 28, creating a helical water flow that is not accelerated by the water flow alone, which pushes the "cross" impeller 26 to rotate.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: the defects that the conventional flowmeter which is only pushed by spiral water flow and does not accelerate water flow is not started and is not accurate in small flow are overcome, and a 12-blade spiral vortex streamline accelerating high-temperature-resistant precise flow sensor is researched and designed.

The specific technical scheme of the utility model is as follows: a12-blade spiral vortex streamline accelerating high-temperature-resistant precise flow sensor mainly comprises a support, a shell, a magnet, a spiral impeller, a shaft and an electromagnetic inductor, and is characterized in that the spiral impeller is 12 blades, a spiral water channel arranged between the blades is of a streamline curve structure, the spiral impeller of the streamline curve forms an accelerating vortex water flow thrust system, the section of a water inlet spiral groove of water flow passing through a containing space of the streamline curve water channel is gradually changed into a narrow section of a water outlet spiral groove from a wide section, and an accelerating vortex water flow thrust force is formed, so that the spiral impeller rotates more forcefully and accurately under the pushing and impacting of the accelerating vortex water flow of the streamline curve; the shell is integrated with the rear bearing, and the support is integrated with the front bearing; the support and the shell adopt an axial matching assembly structure; the spiral impeller in the flow sensor is fixedly connected with the shaft, the conical surfaces at the two ends of the shaft are respectively matched with the conical holes of the front bearing and the rear bearing, and the magnets are embedded in the spiral impeller to form a whole; the water flow flows in the direction of the water inlet arrow in fig. 1, when the water flow flows into the spiral impeller through the water inlet end, a rotating vortex water flow with the continuously narrowed section volume and the continuously increased flow speed is formed in the linear curve spiral water channel, the accelerated vortex water flow impacts and pushes the spiral impeller to generate stronger vortex water flow pushing rotating force, and a linear curve accelerated vortex water flow pushing and impacting effect is formed; the rotating spiral impeller drives the magnet to rotate so as to change the polarity of a magnetic field, the electromagnetic inductor induces the change of the magnetic pole to generate a pulse output signal, the quantity of the pulse signal has strong correlation with the flow, and the function of measuring the flow is achieved by collecting the pulse signal.

Note: the streamline design is the most popular design style in the three and four decades of the 20 th century, takes a smooth and fluent streamline body as a main form, and is characterized by good aerodynamic performance and small flow resistance. The streamline design is mainly applied to vehicles such as automobiles, trains and aviation, and is widely popular and almost reaches all product appearances.

The technical scheme of the flowmeter is that a spiral water channel arranged between blades of a spiral impeller is a streamline curve water channel formed by spirally extending the blades along the water flow direction.

The technical scheme of the flowmeter is that the number of blades of the spiral impeller is an integer n, n is an integer of 9-50, and spiral water channels arranged between the blades are gradually changed according to a streamline curve, so that the water flow accommodating space is continuously reduced, and the water flow speed is continuously increased.

The utility model has the beneficial effects that: the 12-blade spiral vortex streamline type acceleration high-temperature-resistant precision flow sensor is simple and compact in structure, good in production manufacturability and easy to assemble. It can realize streamlined curve vortex rivers driving force with higher speed for start more easily and more accurate when little flow, the characteristics of streamlined curve vortex rivers have good impact force with helical impeller with higher speed, make measurement accuracy and sensitivity increase substantially, realize wide flow range, high accurate flowmeter function.

Description of the drawings:

FIG. 1 is an assembly schematic diagram of a 12-blade spiral vortex streamline type acceleration high-temperature-resistant precision flow sensor

FIG. 2 is a schematic view of a helical impeller of a flow sensor according to the present invention

FIG. 3 is a K-direction schematic view of a flow sensor helical impeller according to the present invention

FIG. 4 is a schematic diagram of a flow sensor according to an embodiment of the present invention

The prior product patent numbers of fig. 5 and 6 are as follows: 201820328537.4 flow meter schematic

FIG. 7 is a schematic diagram of the internal structure of yet another prior art flowmeter

The prior product patent number of fig. 8 is: 202022680944.1 flow meter schematic

In the present invention, the reference numerals in the drawings 1 to 3 in the specification respectively represent:

support 1 shell 2 rear bearing 3 magnet 4 helical impeller 5 axle 6 electromagnetic inductor 7 streamline curve 8 front bearing 9 water inlet helical groove section 10 water outlet helical groove section 11 helical blade number n direction view identification K and →

The utility model description figures 4 are each individually denoted by the reference numerals: a streamline curve 8 front bearing 15 of a shaft 6 electromagnetic inductor 7 for supporting 12 a magnet 4, a helical impeller 5 and a shaft 6, and an arrow indicates the water flow direction

The utility model description refers to fig. 5 and 6, in which the reference numerals denote:

the prior patent numbers: 201820328537.4 flow sensor: the housing 16 magnet 17 electromagnetic inductor 18 front bearing 19 screw impeller 20 shaft 21, rear bearing 22 supports 23 the arrow in the figure shows the water flow direction, shaft conical surface 24.

Referring now to fig. 7 of the drawings, wherein like reference numerals refer to like elements throughout:

the cross-shaped impeller 26 is supported 25 by a housing 27 of the cross-shaped impeller 26, and a shaft 29 of a spiral water channel 28 is arranged, wherein the arrow in the figure is the water flow direction.

The present invention description accompanying fig. 8 is the following patent numbers: 202022680944.1 the flow meter schematic is shown with reference numbers:

30 support 31 fan blade 32 shell

The specific implementation mode is as follows:

the first embodiment is as follows: detailed figures 1 to 3 show that 12-blade spiral vortex streamline acceleration high-temperature-resistant precise flow sensor mainly comprises a support 1, a shell 2, a magnet 4, a spiral impeller 5, a shaft 6 and an electromagnetic inductor 7, and is characterized in that the spiral impeller is 12 blades, a spiral water channel arranged between the blades is of a streamline curve 8 structure, the spiral impeller 5 of the streamline curve 8 forms an acceleration vortex water flow thrust system, and water flow passing through a containing space of the streamline curve 8 water channel is gradually changed from a wide water inlet spiral groove section 10 to a narrow water outlet spiral groove section 11 to form an acceleration vortex water flow thrust force, so that the spiral impeller 5 is driven by the streamline curve 8 acceleration vortex water flow to rotate more strongly and more precisely under the action of the acceleration vortex water flow thrust and impact; the shell 2 and the rear bearing 3 are integrated, and the support 1 and the front bearing 9 are integrated; the support 1 and the shell 2 adopt an axial matching assembly structure; a spiral impeller 5 inside the flow sensor is fixedly connected with a shaft 6, circular conical surfaces at two ends of the shaft 6 are respectively matched with conical holes of a front bearing 9 and a rear bearing 3, and a magnet 4 is embedded in the spiral impeller 5 into a whole; the water flow flows in the direction of the water inlet arrow in fig. 1, when the water flow flows into the spiral impeller 5 through the water inlet end, a rotating vortex water flow with the section volume continuously narrowed and the flow velocity continuously increased is formed in the spiral water channel of the streamline curve 8, the accelerated vortex water flow impacts and pushes the spiral impeller 5 to generate stronger vortex water flow pushing rotating force, and the streamline curve 8 accelerates the vortex water flow pushing and impacting effect is formed; the rotating spiral impeller 5 drives the magnet 4 to rotate to change the polarity of a magnetic field, the electromagnetic inductor 7 induces the change of the magnetic pole to generate a pulse output signal, the number of the pulse signals has strong correlation with the flow, and the function of measuring the flow is achieved by collecting the pulse signals.

The embodiment of the flowmeter is that a spiral water channel arranged between blades of a spiral impeller 5 is a water channel with a streamline curve 8 formed by spirally extending the blades n along the water flow direction.

The embodiment of the flowmeter is that the number of the blades of the spiral impeller 5 is an integer n, n is an integer of 9-50, and the spiral water channels arranged between the blades are gradually changed according to a streamline curve 8, so that the water flow accommodating space is continuously reduced, and the water flow speed is continuously increased.

The second embodiment is as follows: 2-4, 12 leaves spiral eddy streamline accelerate high temperature resistant precise flow sensor, mainly include supporting 12, outer casing 13, magnet 4, spiral impeller 5, axle 6, electromagnetic inductor 7, its characteristic is that the spiral impeller is 12 leaves, the spiral water channel equipped with between blade and the blade is the structure of streamline curve 8, the spiral impeller 5 of streamline curve 8 forms the thrust system of the eddy current of accelerating, the accommodation space that the water current passes the water channel of streamline curve 8 is from the wide water inlet spiral groove section 10 to the narrow water outlet spiral groove section 11 gradually, form the thrust of the eddy current of accelerating, make the spiral impeller 5 accelerate the eddy current of eddy current curve 8 and promote and impact and rotate more vigorously and more accurately; the housing 13 is integral with the rear bearing 14, and the support 12 is integral with the front bearing 15; the support 12 and the shell 13 adopt an axial matching assembly structure; a spiral impeller 5 inside the flow sensor is fixedly connected with a shaft 6, circular conical surfaces at two ends of the shaft 6 are respectively matched with conical holes of a front bearing 15 and a rear bearing 14, and a magnet 4 is embedded in the spiral impeller 5 into a whole; the water flow flows in the direction of the water inlet arrow in fig. 4, when the water flow flows into the spiral impeller 5 through the water inlet end, a rotating vortex water flow with the section volume continuously narrowed and the flow velocity continuously increased is formed in the spiral water channel of the streamline curve 8, the accelerated vortex water flow impacts and pushes the spiral impeller 5 to generate stronger vortex water flow pushing rotating force, and the streamline curve 8 accelerates the vortex water flow pushing and impacting effect is formed; the rotating spiral impeller 5 drives the magnet 4 to rotate to change the polarity of a magnetic field, the electromagnetic inductor 7 induces the change of the magnetic pole to generate a pulse output signal, the number of the pulse signals has strong correlation with the flow, and the function of measuring the flow is achieved by collecting the pulse signals.

Claims

1.12 streamlined high temperature resistant accurate flow sensor of streamlined acceleration of leaf spiral vortex, mainly include supporting, outer casing, magnet, helical impeller, axle, electromagnetic inductor, its characteristic is the helical impeller is 12 leaves, the helical water course that is equipped with between blade and the blade is the streamline curve structure, the helical impeller of streamline curve forms the thrust system of the eddy current of acceleration, the water current is through the holding space of the streamline curve water course and is changed into the narrow water outlet spiral groove section gradually from the wide water inlet spiral groove section, form the thrust force of the eddy current of acceleration, make the helical impeller accelerate the eddy current of eddy current curve and promote and impact and rotate more vigorously and more accurately; the shell is integrated with the rear bearing, and the support is integrated with the front bearing; the support and the shell adopt an axial matching assembly structure; the spiral impeller inside the flow sensor is fixedly connected with the shaft, the conical surfaces at the two ends of the shaft are respectively matched with the conical holes of the front bearing and the rear bearing, and the magnets are embedded in the spiral impeller into a whole.

2. The 12-blade spiral vortex streamline accelerating high temperature resistant precision flow sensor according to claim 1, wherein the spiral water channel arranged between the blades of the spiral impeller is a streamline curve water channel formed by the spiral extension of the blades along the water flow direction.

3. The 12-blade spiral vortex streamline accelerating high temperature resistant precise flow sensor according to claim 2, wherein the number of blades of the spiral impeller is an integer n, n is an integer of 9-50, and the spiral water channels arranged between the blades are gradually changed according to a streamline curve, so that the water flow accommodating space is continuously reduced, and the water flow speed is continuously increased.