CN214667024U

CN214667024U - Accurate corrosion-resistant precession vortex flowmeter

Info

Publication number: CN214667024U
Application number: CN202120416230.1U
Authority: CN
Inventors: 王长标
Original assignee: Hanyue Instrument Shanghai Co ltd
Current assignee: Hanyue Instrument Shanghai Co ltd
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2021-11-09
Anticipated expiration: 2031-02-25

Abstract

The utility model discloses an accurate corrosion-resistant precession vortex flowmeter, which comprises a stainless steel shell; an arc-shaped notch is arranged on the upper side of the right end of the outer side surface of the stainless steel shell body, an arc-shaped sealing cover plate is hermetically connected to the arc-shaped notch, an inlet vortex generator and a fluid director are arranged on the lower surface of the arc-shaped sealing cover plate, the inlet vortex generator is arranged on the left side of the fluid director, the inner side surface of the stainless steel outer shell is provided with a tetrafluoro inner side pipe, the accurate corrosion-resistant precession vortex flowmeter, the interference of vortex or bubble generated at the butt joint of the pipe orifices on the measurement precision can be reduced, and by inserting the external sealing guide cover and the cylindrical sleeve into the port of the external pipe fitting, the device can effectively avoid the interference to the measurement result due to the rapid change of the flow velocity of the fluid, can rectify and guide the fluid by combining the material guide plate with the conical mounting block, can break the vortex in the fluid, and can quickly clean the fluid director and the inlet vortex generator by opening the arc-shaped sealing cover plate.

Description

Accurate corrosion-resistant precession vortex flowmeter

Technical Field

The utility model relates to a flowmeter technical field specifically is an accurate corrosion-resistant vortex flowmeter that precessions.

Background

The flow cross section of the flow sensor in the precession vortex flowmeter is similar to the molded line of a Venturi tube, and a group of spiral guide vanes are arranged on the inlet side. When fluid enters the flow sensor, the guide vanes force the fluid to generate violent swirling flow; when the fluid enters the diffusion section, the vortex flow starts to rotate for the second time under the action of backflow, and a gyro type vortex precession phenomenon is formed. The precession frequency is in direct proportion to the flow rate, and is not influenced by the physical properties and density of the fluid, and the detection element can obtain good linearity in a wider flow rate range by detecting the secondary rotation precession frequency of the fluid. The signal is amplified, filtered and shaped by a preamplifier to be converted into a pulse signal which is in direct proportion to the flow speed, and then the pulse signal and detection signals of temperature, pressure and the like are sent to a microprocessor for integration processing, and measurement results (instantaneous flow, accumulated flow, temperature and pressure data) are displayed on a liquid crystal display screen. The flowmeter consists of a temperature and pressure detection analog channel, a flow sensor channel and a microprocessor unit, and is provided with an external output signal interface for outputting various signals.

When precession vortex flowmeter is installing on outside pipe fitting, because the mouth of pipe diameter of outside pipe fitting is inequality with precession vortex flowmeter's port diameter, and the mouth of pipe diameter of outside pipe fitting is all being greater than precession vortex flowmeter's port diameter generally, when being measured the medium and entering into flow sensor entry along the mouth of pipe of outside pipe fitting, because excessive not smooth enough, can produce swirl or bubble (the oxygen that contains in the liquid originally releases under low pressure state), these swirl or bubble can seriously disturb flowmeter's measurement accuracy.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide an accurate corrosion-resistant vortex flowmeter that precessions, can reduce the swirl or the bubble that mouth of pipe butt joint department produced to measurement accuracy's interference, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: an accurate corrosion-resistant precession vortex flowmeter comprises a stainless steel outer shell; the stainless steel outer casing's lateral surface right-hand member upside is equipped with the arc breach, and sealing connection has the sealed apron of arc on the arc breach, and the lower surface of the sealed apron of arc is equipped with import vortex generator and divertor, import vortex generator sets up the left side at the divertor, and the medial surface of stainless steel outer casing is equipped with the tetrafluoro inboard pipe, and the medial surface of tetrafluoro inboard pipe is equipped with the polyurea coating, and the right-hand member face of stainless steel outer casing is equipped with the cylindricality sleeve, and the telescopic lateral surface of cylindricality has cup jointed external sealed kuppe, and the water inlet of external sealed kuppe adopts the gradual change shape design.

Further, the lateral surface left end upside of stainless steel shell body is equipped with the equipment box, and the last surface mounting of equipment box has the upper cover plate, and the last surface mounting of upper cover plate has the cavity reference column, and the top surface mounting of cavity reference column has the gauge outfit, and sensor assembly is installed to one side that the medial surface of stainless steel shell body is close to the equipment box.

Further, the upper surface of the arc-shaped sealing cover plate is provided with a handle, the lower end of the outer side surface of the arc-shaped sealing cover plate is provided with a second rib plate, one side, close to the second rib plate, of the outer side surface of the stainless steel shell body is provided with a first rib plate, and the first rib plate is fixedly connected with the second rib plate through a bolt.

Furthermore, the fluid director includes stock guide and toper installation piece, and the quantity of stock guide is four, and four stock guide evenly distributed are around the lateral surface of toper installation piece.

Furthermore, a gradual change inner cavity is arranged at the right end of the inner side surface of the stainless steel outer shell.

Furthermore, sealing flange plates are arranged on the left end face and the right end face of the stainless steel shell.

Compared with the prior art, the beneficial effects of the utility model are that: this accurate corrosion-resistant precession vortex flowmeter can reduce the vortex or the bubble that mouth of pipe butt joint department produced to measurement accuracy's interference, through inserting external sealed kuppe and cylindricality sleeve into the port of outside pipe fitting, can effectively avoid because of the abrupt change of fluid velocity of flow to measuring result's interference, can carry out the rectification guide to the fluid through the setting of stock guide combination toper installation piece, can break through the vortex from the area in the fluid again, open arc sealed apron both can wash divertor and import vortex generator fast.

Drawings

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

fig. 2 is a sectional view of the present invention;

fig. 3 is a schematic view of the structure of the flow guider.

In the figure: the device comprises a sealing flange plate 1, a device box body 2, an upper cover plate 3, a hollow positioning column 4, a meter head 5, a handle 6, an arc-shaped sealing cover plate 7, a first rib plate 8, a second rib plate 9, a stainless steel outer shell 10, a tetrafluoro inner pipe 11, a sensor assembly 12, a gradual change inner cavity 13, an external sealing air guide sleeve 14, a cylindrical sleeve 15, a fluid director 16, an inlet vortex generator 17, a material guide plate 18 and a conical mounting block 19.

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.

In the description of the present invention, if an orientation description is referred to, for example, the directions or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in fig. 2, only for convenience of description and simplification of description, but not for indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. When a feature is referred to as being "disposed," "secured," or "connected" to another feature, it can be directly disposed, secured, or connected to the other feature or be indirectly disposed, secured, or connected to the other feature.

Referring to fig. 1-3, the present invention provides a technical solution: an accurate corrosion-resistant precession vortex flowmeter includes a stainless steel outer housing 10; an equipment box body 2 is arranged on the upper side of the left end of the outer side surface of a stainless steel outer shell 10, an upper cover plate 3 is arranged on the upper surface of the equipment box body 2, a hollow positioning column 4 is arranged on the upper surface of the upper cover plate 3, a gauge head 5 is arranged on the upper end surface of the hollow positioning column 4, a sensor component 12 is arranged on one side, close to the equipment box body 2, of the inner side surface of the stainless steel outer shell 10, an arc-shaped notch is arranged on the upper side of the right end of the outer side surface of the stainless steel outer shell 10, an arc-shaped sealing cover plate 7 is connected onto the arc-shaped notch in a sealing mode, a handle 6 is arranged on the upper surface of the arc-shaped sealing cover plate 7, a second rib plate 9 is arranged at the lower end of the outer side surface of the arc-shaped sealing cover plate 7, a first rib plate 8 is arranged on one side, close to the second rib plate 9, the first rib plate 8 is fixedly connected with the second rib plate 9 through bolts, and an inlet vortex generator 17 and a fluid director 16 are arranged on the lower surface of the arc-shaped sealing cover plate 7, the arc-shaped sealing cover plate 7 is opened, so that a fluid director 16 and an inlet vortex generator 17 can be quickly cleaned, the inlet vortex generator 17 is arranged on the left side of the fluid director 16, the fluid director 16 comprises material guide plates 18 and conical installation blocks 19, the number of the material guide plates 18 is four, the four material guide plates 18 are uniformly distributed on the periphery of the outer side surface of each conical installation block 19, the fluid can be rectified and guided through the combination of the material guide plates 18 and the conical installation blocks 19, the fluid can be broken by the aid of self-contained vortexes, a tetrafluoro inner side pipe 11 is arranged on the inner side surface of a stainless steel outer shell 10, a polyurea coating is arranged on the inner side surface of the tetrafluoro inner side pipe 11, a good anti-corrosion effect can be achieved through the combination of the tetrafluoro inner side pipe 11 and the polyurea coating, a cylindrical sleeve 15 is arranged on the right end surface of the stainless steel outer shell 10, an external sealing flow guide cover 14 is sleeved on the outer side surface of the cylindrical sleeve 15, and a water inlet of the external sealing flow guide cover 14 is designed in a gradual change shape, through the port with external sealed kuppe 14 and cylindricality sleeve 15 insert outside pipe fitting, can effectively avoid because of the sharp change of fluid flow velocity to measuring result's interference, the medial surface right-hand member of stainless steel shell body 10 is equipped with gradual change shape inner chamber 13, and both ends face all is equipped with sealed ring flange 1 about stainless steel shell body 10, and this accurate corrosion-resistant vortex flowmeter that precession can reduce the swirl or the bubble that mouth of pipe butt joint department produced to measurement accuracy's interference.

When in use: the external sealing air guide sleeve 14 is sleeved on the outer side surface of the cylindrical sleeve 15, the external sealing air guide sleeve 14 can be customized and can be just plugged into the inside of a pipe to be tested, the external sealing air guide sleeve 14 and the cylindrical sleeve 15 are inserted into the port of the pipe to be tested, the installation and the fixation are carried out through the sealing flange plate 1 and the bolts, when the device is used, fluid in the pipe to be tested can stably enter the inside of the stainless steel outer shell 10, when vortex is formed in the fluid to be tested, the fluid guider 16 can break the vortex, then the fluid is rectified, and the flow detection can be carried out on the fluid after rectification.

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. The utility model provides an accurate corrosion-resistant precession vortex flowmeter which characterized in that: comprises a stainless steel outer shell (10); the stainless steel outer casing (10) outside surface right-hand member upside is equipped with the arc breach, and sealing connection has arc sealed apron (7) on the arc breach, and the lower surface of arc sealed apron (7) is equipped with import vortex generator (17) and divertor (16), import vortex generator (17) set up the left side at divertor (16), and the medial surface of stainless steel outer casing (10) is equipped with tetrafluoro inside pipe (11), and the medial surface of tetrafluoro inside pipe (11) is equipped with the polyurea coating, and the right-hand member face of stainless steel outer casing (10) is equipped with cylindricality sleeve (15), and external sealed kuppe (14) have been cup jointed to the lateral surface of cylindricality sleeve (15), and the water inlet of external sealed kuppe (14) adopts the design of gradual change.

2. A precision corrosion resistant precession vortex flowmeter according to claim 1 wherein: the utility model discloses a stainless steel shell body, including stainless steel shell body (10), the lateral surface left end upside of stainless steel shell body (10) is equipped with equipment box (2), and the last surface mounting of equipment box (2) has upper cover plate (3), and the last surface mounting of upper cover plate (3) has cavity reference column (4), and gauge outfit (5) are installed to the up end of cavity reference column (4), and sensor assembly (12) are installed to one side that the medial surface of stainless steel shell body (10) is close to equipment box (2).

3. A precision corrosion resistant precession vortex flowmeter according to claim 1 wherein: the upper surface of the arc-shaped sealing cover plate (7) is provided with a handle (6), the lower end of the outer side surface of the arc-shaped sealing cover plate (7) is provided with a second rib plate (9), one side, close to the second rib plate (9), of the outer side surface of the stainless steel outer shell (10) is provided with a first rib plate (8), and the first rib plate (8) is fixedly connected with the second rib plate (9) through a bolt.

4. A precision corrosion resistant precession vortex flowmeter according to claim 1 wherein: the flow guider (16) comprises four guide plates (18) and conical mounting blocks (19), and the four guide plates (18) are uniformly distributed on the periphery of the outer side surface of each conical mounting block (19).

5. A precision corrosion resistant precession vortex flowmeter according to claim 1 wherein: the right end of the inner side surface of the stainless steel outer shell (10) is provided with a gradual change inner cavity (13).

6. A precision corrosion resistant precession vortex flowmeter according to claim 1 wherein: the left end face and the right end face of the stainless steel shell (10) are respectively provided with a sealing flange plate (1).