CN212133746U

CN212133746U - Corrosion-resistant metal rotor flowmeter

Info

Publication number: CN212133746U
Application number: CN202020675838.1U
Authority: CN
Inventors: 任大彬; 邵颖健; 蔡树峰
Original assignee: Ningbo Dongchi Measurement And Control Technology Co ltd
Current assignee: Ningbo Dongchi Measurement And Control Technology Co ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2020-12-11
Anticipated expiration: 2030-04-28

Abstract

The utility model provides a corrosion-resistant metal rotameter, including the glass pipe, the pipe wall inboard of glass pipe is equipped with the corrosion-resistant layer, and the inside of glass pipe is for following the supreme cavity that becomes gradually, and the upper portion of glass pipe is equipped with upper portion anti-reflux board, and the lower part of glass pipe is equipped with lower part anti-reflux board, is equipped with the floater of taking the spring in the glass pipe, and the spring of floater is through connecting the pin-point setting on the glass pipe. The utility model has the advantages that: the utility model discloses a simple and practical, convenient operation can prevent the backward flow of flowmeter water-logging, guarantees the accuracy of flowmeter reading, has improved the corrosion resistance simultaneously, and application scope more strengthens.

Description

Corrosion-resistant metal rotor flowmeter

Technical Field

The utility model relates to a metal rotor flow meter field, more specifically say and relate to a corrosion-resistant metal rotor flow meter.

Background

The metal rotor flowmeter consists of a measuring pipe, a floater and an indicator, wherein the floater freely moves up and down in the measuring pipe to change the flow area in a pipeline, the vertical position of the floater in the measuring pipe also changes correspondingly along with the change of the flow, the position of the floater is accurately transmitted to a dial of the indicator through a magnetic transmission system, and the change of the flow value is indicated. The common metal rotameter has no function of backflow prevention, and when the flow of corrosive liquid is detected, the corrosion resistance requirement is higher.

Disclosure of Invention

The utility model overcomes not enough among the prior art provides a corrosion-resistant metal rotameter.

The purpose of the utility model is realized by the following technical scheme.

Corrosion resistant metal rotameter, including the glass pipe, the pipe wall inboard of glass pipe is equipped with the corrosion resistant layer, the inside of glass pipe is for following the supreme cavity that becomes gradually, the upper portion of glass pipe is equipped with upper portion anti-reflux board, the lower part of glass pipe is equipped with lower part anti-reflux board, be equipped with the floater of taking the spring in the glass pipe, the spring of floater is in through connecting the thin pole setting on the glass pipe.

Further, the corrosion-resistant layer is a lithium ion film and an anti-corrosion layer, the lithium ion film is attached to the inner wall of the glass tube, and the anti-corrosion layer is attached to the surface of the lithium ion film.

Further, the anti-corrosion layer is fluorine-silicon modified acrylic resin.

Furthermore, a plurality of rotating stop blocks are arranged on the upper anti-backflow plate.

Further, the rotating stop block is rectangular.

Further, the lower anti-backflow plate comprises a rotating block, a clamping block and a stop block, the rotating block is rotatably connected with the rotating end of the clamping block, and the movable end of the clamping block is clamped on the surface of the stop block so that the clamping block is stopped by the stop block and cannot rotate downwards.

Further, the shape of the movable end surface of the fixture block is matched with the shape of the surface of the fixture block.

Furthermore, the shape of the end face of the movable end of the fixture block is a slope, and the slope of the slope is gradually reduced from bottom to top.

Further, the dog with the surface that the fixture block contacted shape is domatic, and this domatic slope is from the bottom up grow gradually.

Further, flanges are sleeved at the upper end and the lower end of the glass tube.

The utility model has the advantages that:

the upper anti-backflow plate and the lower anti-backflow plate do not obstruct liquid inlet, but are closed when reflowing from top to bottom;

the floating ball is arranged through the spring, and when backflow occurs, the floating ball is pressed to stretch the spring so that the floating ball descends to block the liquid inlet to prevent the backflow from flowing out of the liquid inlet;

the flange is convenient to mount;

the lithium ion film is arranged on the inner side wall of the glass tube by spraying or plating, and the radius of lithium ions is larger than the ionic radius of glass elements such as calcium, sodium, quartz and the like, so that the glass strength can be greatly increased;

the fluorine-silicon modified acrylic resin effectively improves the corrosion resistance of the glass by utilizing the high corrosion resistance of fluorine-silicon element, and simultaneously, the silicon element has lower affinity with water, so that the glass has better hydrophobic property.

The utility model discloses a simple and practical, convenient operation can prevent the backward flow of flowmeter water-logging, guarantees the accuracy of flowmeter reading, has improved the corrosion resistance simultaneously, and application scope more strengthens.

Drawings

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

FIG. 2 is a schematic structural view of an upper anti-reflux plate;

in the figure:

1. a glass tube; 2. a cavity; 3. an upper anti-backflow plate; 4. a spring; 5. a floating ball; 6. connecting the thin rod;

7. 9, rotating the stop block; 10. rotating the block;

11. a clamping block; 12. a stopper; 13. and (4) a flange.

Detailed Description

The technical solution of the present invention is further explained by the following specific examples.

Example 1

As shown in fig. 1, the corrosion-resistant metal rotameter comprises a glass tube, wherein a corrosion-resistant layer is arranged on the inner side of the tube wall of the glass tube, the inner part of the glass tube is a cavity which gradually increases from bottom to top, an upper anti-backflow plate is arranged on the upper part of the glass tube, a lower anti-backflow plate is arranged on the lower part of the glass tube, a floating ball with a spring is arranged in the glass tube, the spring of the floating ball is arranged on the glass tube through a connecting thin rod, the connecting thin rod realizes the structure that the floating ball is connected with the glass tube through the spring, and the connecting thin rod is thin enough and does not block the flow of liquid. When the backflow prevention device is used, the floating ball is arranged through the spring, and when backflow occurs, the floating ball is pressed to stretch the spring so that the floating ball descends to block the liquid inlet, and the backflow is prevented from flowing out of the liquid inlet; when liquid enters, the floating ball is pressed by the liquid to float upwards, and the spring contracts to realize the liquid entering.

Example 2

As shown in fig. 1, the corrosion-resistant metal rotameter comprises a glass tube, wherein a corrosion-resistant layer is arranged on the inner side of the tube wall of the glass tube, the inner part of the glass tube is a cavity which gradually increases from bottom to top, an upper anti-backflow plate is arranged on the upper part of the glass tube, a lower anti-backflow plate is arranged on the lower part of the glass tube, a floating ball with a spring is arranged in the glass tube, and the spring of the floating ball is arranged on the glass tube through a connecting thin rod.

The corrosion-resistant layer is a lithium ion film and an anti-corrosion layer, the lithium ion film is attached to the inner wall of the glass tube, and the anti-corrosion layer is attached to the surface of the lithium ion film; the anti-corrosion layer is made of fluorosilicone modified acrylic resin, the fluorosilicone modified acrylic resin is present, the improvement of the material is not related, only the existing functions of the material are utilized, the fluorosilicone modified acrylic resin effectively improves the anti-corrosion capacity of glass by utilizing the high anti-corrosion performance of fluorosilicone elements, and meanwhile, the silicon elements are low in affinity with water, so that the glass has good hydrophobic performance, and the glass cannot bear the flow rate of liquid while being anti-corrosion in the using process.

Example 3

As shown in fig. 1, the corrosion-resistant metal rotameter comprises a glass tube, wherein a corrosion-resistant layer is arranged on the inner side of the tube wall of the glass tube, the inner part of the glass tube is a cavity which gradually increases from bottom to top, an upper anti-backflow plate is arranged on the upper part of the glass tube, a lower anti-backflow plate is arranged on the lower part of the glass tube, a floating ball with a spring is arranged in the glass tube, the spring of the floating ball is arranged on the glass tube through a connecting thin rod, flanges are sleeved at the upper end and the lower end of the glass tube, and the flanges are convenient to install.

As shown in fig. 2, a plurality of rotation stoppers are arranged on the upper anti-backflow plate, and the rotation stoppers are rectangular. When the backflow prevention device is used, the rotating stop block can be opened upwards along with the pressure of liquid, and the rotating stop block is closed during backflow;

the lower anti-backflow plate comprises a rotating block, a clamping block and a stop block, the rotating block is rotatably connected with the rotating end of the clamping block, and the movable end of the clamping block is clamped on the surface of the stop block so that the clamping block is stopped by the stop block and cannot rotate downwards.

The shape of the surface of the movable end of the fixture block is matched with that of the surface of the fixture block, the end surface of the movable end of the fixture block is a slope, and the slope of the slope is gradually reduced from bottom to top; the dog with the surface's that the fixture block contacted shape is domatic, and this domatic slope is from supreme grow gradually down.

When the anti-backflow plate is used, the clamping block can be opened upwards by receiving liquid pressure during liquid inlet, liquid inlet is achieved, the clamping block is pressed by the liquid pressure during backflow, the clamping block is just clamped with the slope surface of the clamping block, the clamping block is prevented from rotating downwards, and the lower anti-backflow plate is closed.

The working principle is as follows: when liquid enters, the clamping block can be opened upwards under the pressure of the liquid, the floating ball is pressed by the liquid to float upwards, the spring contracts to realize liquid entering, the rotating clamping block is opened upwards along with the pressure of the liquid, and at the moment, water entering is realized;

when taking place the backward flow, rotate the dog and close during the backward flow, if the backward flow volume is big/other condition factor backward flow liquid enters into the cavity, thereby the backward flow liquid can oppress floater downstream extension spring, and the floater descends to block up into the liquid mouth and avoids the backward flow to flow from entering the liquid mouth and flow, and backward flow liquid pressure oppresses the fixture block, the fixture block with just the card of domatic of dog is dead, prevents the fixture block downwardly rotating realizes the lower part anti-reflux board is closed.

The above description has been made in detail for the three embodiments of the present invention, but the above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. Corrosion resistant metal rotameter, including the glass pipe, its characterized in that: the glass tube comprises a glass tube and is characterized in that a corrosion-resistant layer is arranged on the inner side of the tube wall of the glass tube, a cavity which is gradually enlarged from bottom to top is formed in the glass tube, an upper backflow-preventing plate is arranged on the upper portion of the glass tube, a lower backflow-preventing plate is arranged on the lower portion of the glass tube, a floating ball with a spring is arranged in the glass tube, and the spring of the floating ball is arranged on the glass tube through a connecting thin rod.

2. The corrosion resistant metallic rotameter recited in claim 1, wherein: the corrosion-resistant layer is a lithium ion film and an anti-corrosion layer, the lithium ion film is attached to the inner wall of the glass tube, and the anti-corrosion layer is attached to the surface of the lithium ion film.

3. The corrosion resistant metallic rotameter recited in claim 2, wherein: the anti-corrosion layer is made of fluorine-silicon modified acrylic resin.

4. The corrosion resistant metallic rotameter recited in claim 1, wherein: and a plurality of rotating stop blocks are arranged on the upper anti-backflow plate.

5. The corrosion resistant metallic rotameter recited in claim 4, wherein: the rotating stop block is rectangular.

6. The corrosion resistant metallic rotameter recited in claim 1, wherein: the lower anti-backflow plate comprises a rotating block, a clamping block and a stop block, the rotating block is rotatably connected with the rotating end of the clamping block, and the movable end of the clamping block is clamped on the surface of the stop block so that the clamping block is stopped by the stop block and cannot rotate downwards.

7. The corrosion resistant metallic rotameter recited in claim 6, wherein: the shape of the movable end surface of the clamping block is matched with that of the surface of the clamping block.

8. The corrosion resistant metallic rotameter recited in claim 7, wherein: the end face of the movable end of the fixture block is in a slope surface, and the slope of the slope surface is gradually reduced from bottom to top.

9. The corrosion resistant metallic rotameter recited in claim 7, wherein: the dog with the surface's that the fixture block contacted shape is domatic, and this domatic slope is from supreme grow gradually down.

10. The corrosion resistant metallic rotameter recited in any one of claims 1-9, wherein: and flanges are sleeved at the upper end and the lower end of the glass tube.