CN110426096A - A kind of triangular rotor flowmeter - Google Patents
A kind of triangular rotor flowmeter Download PDFInfo
- Publication number
- CN110426096A CN110426096A CN201910802679.9A CN201910802679A CN110426096A CN 110426096 A CN110426096 A CN 110426096A CN 201910802679 A CN201910802679 A CN 201910802679A CN 110426096 A CN110426096 A CN 110426096A
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- Prior art keywords
- chamber
- triangular rotor
- shell
- rotor
- triangular
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
- G01F11/28—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with stationary measuring chambers having constant volume during measurement
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The present invention proposes a kind of triangular rotor flowmeter, including shell, the inside of the shell is formed with chamber, two triangle rotor is equipped in chamber, two triangle rotor is connect with two shafts respectively, front shroud and back shroud of two shafts through bearing and shell roll connection, liquid enters the intracorporal feed liquor chamber of shell from input duct, make the first triangular rotor and the second triangular rotor continuously mutual engagement rotation, during the two rotation, upper chamber and lower chambers can be formed, the liquid of upper chamber and bottom chamber is from feed liquor chamber before at this time；As the intermeshing of the first triangular rotor and the second triangular rotor rotates, liquid in the upper chamber and lower chambers can import out sap cavity room, and then be discharged by liquid outlet pipe, in the above process, pass through the Hall sensor cooperation on the magnet and shell on rotor, exportable flow signal.Above-mentioned flowmeter has many advantages, such as that detection accuracy is high, noise is small, there is no pressure leakages.
Description
Technical field
The present invention relates to flowmeter technology field more particularly to a kind of triangular rotor flowmeters.
Background technique
Currently, there is two major classes flowmeter on the market: volumetric flowmeter and velocity flowmeter.In practical applications, because
It is unrelated with the pressure of liquid and flow velocity for the metering of volumetric flowmeter, so volumetric flowmeter specific rate formula flowmeter is quasi-
Really.Present volumetric flowmeter mainly has: oval gear flowmeter, rotz flowmeter, scraper type flowmeter, rotary-piston type
Flowmeter, reciprocating-piston flowmeter etc..
Wherein, measurement accuracy is higher surely belongs to rotz flowmeter, but there is also certain pressure leakages for rotz flowmeter
Problem increases as the abrasion of lock gear will cause waist wheel gap, reduces detection accuracy.
Summary of the invention
In order to solve the problems in the existing technology, the invention proposes a kind of triangular rotor flowmeters, to mention
High measurement accuracy.
To achieve the goals above, the invention proposes a kind of triangular rotor flowmeter, including shell, the shell
Inside is formed with chamber, and the upper end and lower end of the cross section of the chamber are in the arc-shaped that radius is R, the cross of the chamber
The arc length of the upper end circular arc in section and the arc length of lower end circular arc are all larger than the first arc length and less than the second arc length, wherein described
First arc length refers in the circle that radius is R that arc length corresponding to 120 ° of central angle, second arc length refers to that radius is R's
In circle, arc length corresponding to 240 ° of central angle；The left end line and right end line of the cross section of the chamber are respectively used to should
The upper end circular arc and lower end circular sliding slopes of cross section get up, the left end line of the cross section of the chamber and every on right end line
A point is greater than radius R at a distance from the upper end circular arc of the cross section and the center of circle of lower end circular arc；In the left plate of the shell
Being equipped with inlet, perhaps liquid outlet is equipped with liquid outlet or inlet on the right side plate of the shell, at the inlet
It is connected with input duct, is connected with liquid outlet pipe at the liquid outlet；
The first triangular rotor and the second triangular rotor, first triangular rotor are respectively equipped in the chamber
With the second triangular rotor respectively close to the epipleural and lower side panel of shell, first rotating shaft and the second shaft are along front and back
To the i.e. axis direction of the first triangular rotor and the second triangular rotor extends through first triangular rotor and
Two triangular rotors, the first rotating shaft and the second shaft respectively with first triangular rotor and the second triangular rotor
Be fixedly connected, the upper end circular arc of the cross section of the first rotating shaft and the chamber is concentric circles, second shaft with it is described
The lower end circular arc of the cross section of chamber is concentric circles, the front cover of the first rotating shaft and the second shaft through bearing Yu the shell
Plate and back shroud roll connection；
The flexible gear teeth are equipped on the side surface of first triangular rotor and the second triangular rotor, and
The gear teeth and second during the first triangular rotor and the second triangular rotor rotate, on first triangular rotor
The gear teeth on triangular rotor can be continuously intermeshed, and each vertex of each triangular rotor can intermittent and shell
Inner wall contact；
During liquid enters chamber, the first triangular rotor and the second triangular rotor and rotates, the chamber meeting
Three or four sub-chamber are divided into, when forming four sub-chamber, feed liquor chamber is denoted as respectively, goes out sap cavity room, epicoele
Room and lower chambers；When forming three sub-chamber, including feed liquor chamber, go out sap cavity room and upper chamber or lower chambers；Institute
State feed liquor chamber and out sap cavity room by the inner wall of shell front shroud, the inner wall of shell body rear cover plate, the inner wall of shell side plate, first
The side surface of triangular rotor and the side surface of the second triangular rotor surround；The upper chamber is by shell front shroud
Wall, the inner wall of shell body rear cover plate, the inner wall of shell side plate and the first triangular rotor side surface surround；The lower chambers by
The inner wall of shell front shroud, the inner wall of shell body rear cover plate, the inner wall of shell side plate and the second triangular rotor side surface enclose
At；
During the first triangular rotor and the second triangular rotor rotate, the volume of each sub-chamber is in variation
State, in the state of existing simultaneously upper chamber and lower chambers, the volume of upper chamber and lower chambers is equal, this state
Under, the volume of the feed liquor chamber is in opposite change procedure, the i.e. volume when the feed liquor chamber with the volume of sap cavity room out
When from small becoming larger, it is described go out sap cavity room volume from gradually becoming smaller greatly, vice versa；When only existing upper chamber or cavity of resorption
When room, the volume of the feed liquor chamber is equal to the volume of sap cavity room；
Magnet is equipped at least one interior angle of first triangular rotor and/or the second triangular rotor, in institute
It states shell and is equipped with the Hall sensor being used cooperatively with the magnet.
Preferably, densitometer is additionally provided at the input duct or liquid outlet pipe.
Preferably, the end of the input duct and liquid outlet pipe is respectively connected with flange.
Preferably, the bearing is ceramic bearing.
Preferably, two triangular rotors are all made of polytetrafluoroethylene material and are made, the side table of each triangular rotor
Face forms the gear teeth using hollow processing.
Preferably, the shell is made of stainless steel.
The beneficial effect of the program of the present invention is that above-mentioned triangular rotor flowmeter has detection accuracy height, noise
It is small, be not present pressure leakage the advantages that.
Triangular rotor flowmeter according to the present invention is also used as flow pump use, uses as flow pump
When, the first rotating shaft or the second shaft run through the front shroud or back shroud of the shell, in the front cover for stretching out the shell
Power device is connected at the first rotating shaft or the second shaft of plate or back shroud.
Detailed description of the invention
Fig. 1 shows the structural schematic diagram of triangular rotor flowmeter according to the present invention.
Fig. 2 shows cross-section structures when triangular rotor flowmeter according to the present invention is used cooperatively with generator to show
It is intended to.
Appended drawing reference: 1- shell, 2- input duct, 3- liquid outlet pipe, 4- flange, the first triangular rotor of 5-, 6- second
Triangular rotor, 7- first rotating shaft, the second shaft of 8-, 9- magnet, the first Hall sensor of 10-, the second Hall sensor of 11-,
12- densitometer, 13- feed liquor chamber, 14- go out sap cavity room, 15- upper chamber, 16- lower chambers, 17- bearing, 18- alternator magnets turn
Son, 19- generator unit stator.
Specific embodiment
A specific embodiment of the invention is further described with reference to the accompanying drawing.
As shown in Figure 1, triangular rotor flowmeter according to the present invention includes shell 1, the inside of the shell 1 is formed
Have a chamber, the upper end and lower end of the cross section of the chamber are in the arc-shaped that radius is R, the cross section of the chamber it is upper
The arc length of the arc length and lower end circular arc of holding circular arc is all larger than the first arc length and less than the second arc length, wherein first arc length
Refer to radius be R circle in, arc length corresponding to 120 ° of central angle, second arc length refer to radius be R circle in, 240 °
Central angle corresponding to arc length, in the present embodiment, the arc length of the upper end circular arc of the cross section of the chamber and lower end circle
The arc length of arc is equal, and the upper end circular arc and lower end circular arc of the cross section of the chamber are symmetrical arranged.
The left end line and right end line of the cross section of the chamber be respectively used to by the upper end circular arc of the cross section and under
End circular sliding slopes get up, and the left end line of the cross section of the chamber and each point on right end line and the cross section is upper
The distance in the center of circle of circular arc and lower end circular arc is held to be greater than radius R.
It is equipped with inlet or liquid outlet on the left plate of the shell 1, in the present embodiment, is equipped with inlet；In
The right side plate of the shell 1 is equipped with liquid outlet or inlet, and input duct 2, the liquid out are connected at the inlet
Liquid outlet pipe 3 is connected at mouthful, and the end of the input duct 2 and liquid outlet pipe 3 is respectively connected with flange 4, so as to by described three
Angular spinner flowmeter is connected in pipeline.It is also provided with densitometer 12 at the input duct 2 or liquid outlet pipe 3, with
Just the quality of liquid can be calculated.
The first triangular rotor 5 and the second triangular rotor 6 are respectively equipped in the chamber, first triangle turns
Son 5 and the second triangular rotor 6 respectively close to shell 1 epipleural and lower side panel, first rotating shaft 7 and the second shaft 8 along
Front-rear direction (axis direction of namely the first triangular rotor 5, the second triangular rotor 6) extends through first triangle
Shape rotor 5 and the second triangular rotor 6, the first rotating shaft 7 and the second shaft 8 respectively with first triangular rotor 5
It being fixedly connected with the second triangular rotor 6, the first rotating shaft 7 and the upper end circular arc of the cross section of the chamber are concentric circles,
Second shaft 8 and the lower end circular arc of the cross section of the chamber are concentric circles, the first rotating shaft 7 and the second shaft 8
Front shroud and back shroud through bearing 17 and the shell 1, which roll, to be connected, and in the present embodiment, the bearing 17 is preferably made pottery
Porcelain bearing.
The flexible gear teeth are equipped on the side surface of first triangular rotor 5 and the second triangular rotor 6, and
And gear teeth during the first triangular rotor 5 and the second triangular rotor 6 rotate, on first triangular rotor 5
It can be continuously intermeshed with the gear teeth on the second triangular rotor 6, and each vertex of each triangular rotor can be intermittent
Contacted with the inner wall of shell 1.In the present embodiment, two triangular rotors are all made of polytetrafluoroethylene (PTFE) High Strength Wear-Resistance Material
It is made, the side surface of each triangular rotor forms the gear teeth using hollow processing, which has certain elasticity, can enhance shell
The sealing performance of body 1 inner wall and triangular rotor.The side surface of two triangular rotors is intermeshed by the gear teeth, due to triangle
Shape rotor has certain elasticity, so being fitted close both when using, to ensure that sealing performance between rotor.The present invention
Related rotor does not need external locking guide gear, without output shaft, the problem of pressure leakage is not present, so can hold
By biggish pressure, it can guarantee the measurement accuracy under long-time service state.In addition, two triangular rotors use polytetrafluoroethyl-ne
Alkene High Strength Wear-Resistance Material is made, and can reduce noise.
During liquid enters chamber, the first triangular rotor 5 and the second triangular rotor 6 and rotates, the chamber
Three or four sub-chamber can be divided into, when forming four sub-chamber, feed liquor chamber 13 is denoted as respectively, goes out sap cavity room
14, upper chamber 15 and lower chambers 16.When forming three sub-chamber, including feed liquor chamber 13, go out sap cavity room 14 and epicoele
Room 15 or lower chambers 16.Inner wall, 1 back shroud of shell of the feed liquor chamber 13 and out sap cavity room 14 by 1 front shroud of shell
Inner wall, the inner wall of 1 side plate of shell, the side surface of the first triangular rotor 5 and the second triangular rotor 6 side surface enclose
At.The upper chamber 15 by the inner wall of 1 front shroud of shell, the inner wall of 1 back shroud of shell, 1 side plate of shell inner wall and first
The side surface of triangular rotor 5 surrounds.The lower chambers 16 are by the inner wall of 1 front shroud of shell, inner wall, the shell of 1 back shroud of shell
The side surface of the inner wall of 1 side plate of body and the second triangular rotor 6 surrounds.
During the first triangular rotor 5 and the second triangular rotor 6 rotate, the volume of each sub-chamber, which is in, to be become
The state of change, in the state of existing simultaneously upper chamber 15 and lower chambers 16, the volume of the two is equal, under this state, described
The volume of feed liquor chamber 13 is in opposite change procedure with the volume of sap cavity room 14 out, that is to say, that when the feed liquor chamber 13
When volume is from small become larger, it is described go out sap cavity room 14 volume from gradually becoming smaller greatly, vice versa.When only existing upper chamber 15
Or when lower chambers 16, the volume of the feed liquor chamber 13 is equal to the volume of sap cavity room 14.
In order to improve detection accuracy and facilitate calculating, in the present embodiment, in first triangular rotor 5 and second
It is equipped with magnet 9 at each interior angle of triangular rotor 6, the Hall being used cooperatively with the magnet 9 is equipped on the shell 1
Sensor is particularly equipped with the first Hall so as to output flow signal on the shell 1 corresponding with the upper chamber 15
Sensor 10 is equipped with the second Hall sensor 11 on the shell 1 corresponding with the lower chambers 16.In order to not influence magnetic
, the shell 1 can be using materials such as stainless steels.
In the specific use process, liquid enters the feed liquor chamber 13 in shell 1 from input duct 2, so that the one or three
Angular rotor 5 and the second triangular rotor 6 intermeshing rotation, the two rotation during, can be formed upper chamber 15 and
Lower chambers 16, the liquid in upper chamber 15 and lower chambers 16 is from feed liquor chamber 13 at this time；With the first triangular rotor 5
Intermeshing with the second triangular rotor 6 rotates, and the liquid in the upper chamber 15 and lower chambers 16 can import out sap cavity
Room 14, and then be discharged by liquid outlet pipe 3.In above process, exportable by the cooperation of magnet 9 and Hall sensor
Flow signal.The quality of liquid can also be calculated by densitometer 12.
Triangular rotor flowmeter according to the present invention has detection accuracy is high, noise is small, pressure leakage is not present etc.
Advantage.
In specific application, the triangular rotor flowmeter can be used cooperatively with generator, as shown in Fig. 2, described
One shaft 7 or the second shaft 8 through the shell 1 front shroud perhaps back shroud in the front shroud for stretching out the shell 1 or
It is connected with generator at the first rotating shaft 7 of back shroud or the second shaft 8, specifically the first rotating shaft 7 or the second shaft 8 and hair
Motor Magnmet rotor 18 is connected, and generator unit stator 19 can be fixed on the shell 1.
Triangular rotor flowmeter according to the present invention is also used as flow pump use, uses as flow pump
When, the first rotating shaft 7 or the second shaft 8 are stretching out the shell 1 through the front shroud or back shroud of the shell 1
Power device is connected at the first rotating shaft 7 or the second shaft 8 of front shroud or back shroud.The specific power device can be with
Using motor etc..
Claims (7)
1. a kind of triangular rotor flowmeter, it is characterised in that: including shell, the inside of the shell is formed with chamber, described
The upper end and lower end of the cross section of chamber are in the arc-shaped that radius is R, the arc of the upper end circular arc of the cross section of the chamber
Long and lower end circular arc arc length is all larger than the first arc length and less than the second arc length, wherein first arc length refers to that radius is
In the circle of R, arc length corresponding to 120 ° of central angle, second arc length refers in the circle that radius is R, 240 ° of central angle institute
Corresponding arc length；The left end line and right end line of the cross section of the chamber be respectively used to the upper end circular arc of the cross section and
Lower end circular sliding slopes get up, the upper end of the left end line of the cross section of the chamber and each point and the cross section on right end line
The distance in the center of circle of circular arc and lower end circular arc is greater than radius R；Inlet or out liquid are equipped on the left plate of the shell
Mouthful, liquid outlet or inlet are equipped on the right side plate of the shell, is connected with input duct at the inlet, it is described go out
Liquid outlet pipe is connected at liquid mouth；
The first triangular rotor and the second triangular rotor, first triangular rotor and are respectively equipped in the chamber
Two triangular rotors are respectively close to the epipleural and lower side panel of shell, and first rotating shaft and the second shaft are along front-rear direction, i.e.,
The axis direction of first triangular rotor and the second triangular rotor extends through first triangular rotor and the second triangle
Shape rotor, the first rotating shaft and the second shaft are fixed with first triangular rotor and the second triangular rotor respectively to be connected
It connects, the upper end circular arc of the cross section of the first rotating shaft and the chamber is concentric circles, second shaft and the chamber
The lower end circular arc of cross section is concentric circles, front shroud through bearing and the shell of the first rotating shaft and the second shaft and
Back shroud rolls connection；
The flexible gear teeth are equipped on the side surface of first triangular rotor and the second triangular rotor, and
During one triangular rotor and the second triangular rotor rotate, the gear teeth and the second triangle on first triangular rotor
The gear teeth on shape rotor can be continuously intermeshed, and each vertex of each triangular rotor can be intermittent interior with shell
Wall contact；
During liquid enters chamber, the first triangular rotor and the second triangular rotor and rotates, the chamber can be drawn
Be divided into three or four sub-chamber, when forming four sub-chamber, be denoted as respectively feed liquor chamber, go out sap cavity room, upper chamber with
And lower chambers；When forming three sub-chamber, including feed liquor chamber, go out sap cavity room and upper chamber or lower chambers；It is described into
Sap cavity room and out sap cavity room are by the inner wall of shell front shroud, the inner wall of shell body rear cover plate, the inner wall of shell side plate, the first triangle
The side surface of shape rotor and the side surface of the second triangular rotor surround；Inner wall, shell of the upper chamber by shell front shroud
The side surface of the inner wall of body back shroud, the inner wall of shell side plate and the first triangular rotor surrounds；The lower chambers are by shell
The inner wall of front shroud, the inner wall of shell body rear cover plate, the inner wall of shell side plate and the second triangular rotor side surface surround；
During the first triangular rotor and the second triangular rotor rotate, the volume of each sub-chamber is in the shape of variation
State, in the state of existing simultaneously upper chamber and lower chambers, the volume of upper chamber and lower chambers is equal, under this state, institute
The volume and the volume of sap cavity room out for stating feed liquor chamber in opposite change procedure, i.e., when the volume of the feed liquor chamber from it is small by
When gradual change is big, the volume of the sap cavity room out is from gradually becoming smaller greatly, and vice versa；When only existing upper chamber or lower chambers,
The volume of the feed liquor chamber is equal to the volume of sap cavity room；
Magnet is equipped at least one interior angle of first triangular rotor and/or the second triangular rotor, in the shell
Body is equipped with the Hall sensor being used cooperatively with the magnet.
2. triangular rotor flowmeter according to claim 1, it is characterised in that: in the input duct or liquid outlet pipe
Place is additionally provided with densitometer.
3. triangular rotor flowmeter according to claim 1, it is characterised in that: the input duct and liquid outlet pipe
End is respectively connected with flange.
4. triangular rotor flowmeter according to claim 1, it is characterised in that: the bearing is ceramic bearing.
5. triangular rotor flowmeter according to claim 1, it is characterised in that: two triangular rotors are all made of poly- four
Fluoride material is made, and the side surface of each triangular rotor forms the gear teeth using hollow processing.
6. triangular rotor flowmeter according to claim 1, it is characterised in that: the shell uses stainless steel material system
At.
7. a kind of flow pump, it is characterised in that: the flow pump includes triangle described in any one of claim 1 to 6
Spinner flowmeter is stretching out institute wherein the first rotating shaft or the second shaft run through the front shroud or back shroud of the shell
It states and is connected with power device at the front shroud of shell or the first rotating shaft of back shroud or the second shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910802679.9A CN110426096A (en) | 2019-08-28 | 2019-08-28 | A kind of triangular rotor flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910802679.9A CN110426096A (en) | 2019-08-28 | 2019-08-28 | A kind of triangular rotor flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110426096A true CN110426096A (en) | 2019-11-08 |
Family
ID=68417930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910802679.9A Withdrawn CN110426096A (en) | 2019-08-28 | 2019-08-28 | A kind of triangular rotor flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110426096A (en) |
-
2019
- 2019-08-28 CN CN201910802679.9A patent/CN110426096A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191108 |