CN206146783U - Vibration tubular on -line densimeter - Google Patents
Vibration tubular on -line densimeter Download PDFInfo
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- CN206146783U CN206146783U CN201621118293.4U CN201621118293U CN206146783U CN 206146783 U CN206146783 U CN 206146783U CN 201621118293 U CN201621118293 U CN 201621118293U CN 206146783 U CN206146783 U CN 206146783U
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Abstract
The utility model provides a sleeve that vibration tubular on -line densimeter, involving vibrations manage and overlap in the vibration outside of tubes be equipped with the cover that expands between vibration pipe and the sleeve. An object of the utility model is to provide a vibration tubular on -line densimeter with traditional vibration tubular on -line densimeter's vibration pipe and telescopic welded connection mode, changes into and uses the fixed detachable connection mode of cover that expands, makes things convenient for the dismantlement and the maintenance of pairing vibration pipe.
Description
Technical field
This utility model is related to a kind of metrical instrument, more particularly to a kind of vibration tube-type on-line densimeter.
Background technology
On-line densimeter, also referred to as online density transmitter is a kind of for continuous on-line measurement strength of fluid and density
Equipment, in can be directly used for industrial processes, intelligent online densimeter can be according to medium using the principle of gradiomanometer
Differential pressure value in certain vertical dimension calculates density value, and carries out temperature-compensating automatically, and high precision, good reliability, installation makes
With simple.
The patent of invention of Publication No. CN102812344A discloses a kind of improved method of tubular vibration-type densitometer, vibration
Tubular type densimeter is worked using the principle of mechanical vibration, and testing liquid is passed in the vibrating tube by made by magnetic material,
One electromagnetic drive coil is installed by vibrating tube, after pulse excitation electric current is passed in coil, vibrating tube is subject to the magnetic force of coil
Vibration is produced after effect；In addition a detection coil is set again by vibrating tube, same frequency of vibration identical electric current is produced wherein,
Due to the frequency of vibration of vibrating tube it is relevant with the liquid quality in vibrating tube, i.e., it is relevant with the density of liquid, so detection coil
In the current signal of frequency change just represent the change of fluid density, FM signal of its output can be converted into analogue signal
Indicated and recorded, it is also possible to shown with digital instrument.
The vibrating tube and sleeve of the vibration tube-type on-line densimeter sold currently on the market is typically welded to together, it has not been convenient to
Take maintenance apart or change parts, increased maintenance difficulty and maintenance cost.
Utility model content
The purpose of this utility model is to provide a kind of vibration tube-type on-line densimeter, and traditional vibration tube-type is close online
The vibrating tube of degree meter and the welding connecting mode of sleeve, are changed to be detachably connected mode using what expansion set was fixed, conveniently to vibration
The dismounting and maintenance of pipe.
Above-mentioned purpose of the present utility model technical scheme is that：A kind of vibration tube-type is in line density
Meter, including vibrating tube and the sleeve being placed on outside vibrating tube, between the vibrating tube and sleeve expansion set is provided with.
By adopting above-mentioned technical proposal, expansion set is expansion sleeve, is to be widely used in machinery under heavy load in the world now
Be coupled a kind of advanced basic components, its principle is the effect by high strength tension bolt, between internal ring and axle, outer shroud with
Huge enclasping force is produced between wheel hub, to realize the keyless joint of parts.In this utility model, expansion set is in high strength tension spiral shell
Huge enclasping force is produced in the presence of bolt between vibrating tube and expansion set internal ring, expansion set outer shroud and sleeve so that vibrating tube and sleeve
Can be tightly secured together, after unscrewing stress bolt, vibrating tube can be separated with sleeve again, to extract vibrating tube out, to it
On the parts such as coil, sensor repair or replace.
Preferably, the vibrating tube is flushed with sleeve two ends, and the expansion set is located at of crack between vibrating tube and sleeve
At end, or it is respectively arranged at the two ends with an expansion set.
By adopting above-mentioned technical proposal, vibrating tube is set to flush with sleeve two ends, the fully wrapped around vibration of sleeve can be made
Pipe, plays protective effect comprehensive to vibrating tube；On the other hand, vibrating tube is flushed with sleeve two ends, can conveniently be installed or removed
Expansion set.If sleeve is difficult to demolition, installation expansion set than vibration pipe range, if sleeve is shorter than vibrating tube, vibrating tube must partly expose,
The long stability that vibrating tube can be affected to work of use time.
Preferably, the expansion set includes multiple bolts located at its end face, 0 ~ 5 centimetre of bolt distance from top sleeve end face.
By adopting above-mentioned technical proposal, because being by one end direction of stress bolt of arranging on expansion set when installing expansion set
Pipe is outer, and to facilitate stress bolt is tightened, if expansion set will bring difficulty, very at too deep position in pipe to stress bolt is tightened
To the phenomenon for occurring that stress bolt cannot be tightened, therefore 0 ~ 5 centimetre of bolt distance from top sleeve end face is kept to be optimal expansion set
Position.
Preferably, the sleeve wall thickness is more than 1/5th of its caliber.
By adopting above-mentioned technical proposal, because vibrating tube drives its interior working fluid vibration by the vibration of its own, then lead to
The common frequency of vibration that detection coil detects vibrating tube and liquid is crossed, fluid density is gone out in prediction on such basis, and vibration tube-type is online
Densimeter is generally used in commercial production, is generally connected with machine, if the densimeter entirety light weight, it is easy to by machine shadow
Sound vibrates, or even produces covibration, greatly have impact on densitometric on-line measurement precision.Ensure that sleeve wall thickness is more than
/ 5th of its caliber, equivalent to increasing counterweight to the densimeter, make the vibrating tube inside the densimeter not receive machine vibration
Impact.
Preferably, also including the shell of tubulose, shell is placed on outside sleeve, and shell is respectively arranged at the two ends with the projection of a truncated cone-shaped
One, the projection two of a cylinder is respectively provided with the raised end face on both sides, a method is respectively provided with the raised biend on both sides
It is blue.
By adopting above-mentioned technical proposal, further solid projection one, projection two are respectively provided with shell two ends, to enter
One step increases the weight of tubular vibration-type densitometer, in case producing resonance with machine or being affected to make on-line measurement essence by machine vibration
Degree declines.
Preferably, the side wall of outer shell is provided with the instrument case connected with shell inner cavity, and instrument case is respectively arranged at two ends with out
Mouth one, opening two, are equipped with the screw thread for installing lid on opening one and opening two, thread root is provided with sealing ring, screw thread
Root is additionally provided with annular protrusion, and sealing ring is arranged against annular protrusion.
By adopting above-mentioned technical proposal, using dismountable thread connecting mode, the convenient front and back ends in instrument case point
Protecgulum, bonnet are not screwed on, the setting of sealing ring can be prevented in moist working environment, and the circuit board in instrument case receives steam shadow
Ring, the annular protrusion of thread root can prop up sealing ring, allow sealing ring to be combined more accurate with protecgulum, bonnet.
Preferably, three road annular grooves are equipped with the flange on both sides, the annular groove is arranged concentrically with flange.
By adopting above-mentioned technical proposal, because flange is connected with the fluid pipeline of user, the risk that there is leakage, because
This arranges three road annular grooves on end face in flange in combination with fluid pipeline, when liquid is leaked in groove, can form resistance
Gear liquid continues the liquid film revealed.
Preferably, the vibrating tube two ends connect with vibrating tube be provided with input duct, drain pipe road, the feed tube respectively
Annular protrusion two is extended in road, the outer end in drain pipe road.
By adopting above-mentioned technical proposal, due to vibrating tube it is suitable with length sleeve, it is inconvenient by vibrating tube in dismounting
Extract out, at vibrating tube two ends input duct, drain pipe road are respectively welded, and an annular is respectively welded in the outer end of the two pipelines
Raised two, can be using annular protrusion two as at force, to facilitate extraction vibrating tube.
Description of the drawings
Fig. 1 is the overall structure diagram of vibration tube-type on-line densimeter；
Fig. 2 is the front view of vibration tube-type on-line densimeter；
Fig. 3 is the A-A of Fig. 2 in embodiment 1 to sectional view；
Fig. 4 is A portions enlarged drawing in Fig. 1；
Fig. 5 is vibrating tube, sleeve, the combination schematic diagram of expansion set；
Fig. 6 is the A-A of Fig. 2 in embodiment 2 to sectional view；
Fig. 7 is the A-A of Fig. 2 in embodiment 3 to sectional view；
Reference：1st, vibrating tube;2nd, sleeve;3rd, expansion set;31st, bolt;4th, shell;5th, raised one;6th, raised two;
7th, flange;71st, annular groove;8th, instrument case;81st, opening one;82nd, opening two;83rd, screw thread;84th, sealing ring; 85、
Annular protrusion one;86th, straight tube;9th, annular protrusion two;10th, input duct;11st, drain pipe road.
Specific embodiment
This utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment 1
A kind of vibration tube-type on-line densimeter, as shown in Fig. 1 ~ 3, vibrating tube 1 is maintained between a pair of flanges 7, is made
With in, flange 7 is connected with the reactor opening of user.The vibration tube-type on-line densimeter one has three pipes, this three pipes
Layer overlaps, are respectively from inside to outside vibrating tube 1, sleeve 2, shell 4.The two ends of shell 4 are respectively welded with a projection 1, convex
1 are played with the end face of shell 4 as bottom surface, raised 1 is truncated conical shape, and the top surface of the projection 1 on the both sides of shell 4 is welded with one
The projection 26 of individual cylinder, the shape of raised 26 bottom surfaces is identical with raised 26 top surface shapes, and raised 26 is also solid.Shell
The top surface of the projection 26 on 4 both sides is welded flange 7, and flange 7, projection 1, raised 26 Combination Weldings are into an entirety, and this is whole
Through being provided with through hole, the two ends of vibrating tube 1 are respectively welded input duct 10 and drain pipe road 11 in body central authorities, input duct 10 and go out
Liquid pipe road 11 is passed from the through hole.Three road annular grooves 71, annular groove 71 and method are also uniformly provided with the outer face of flange 7
Blue 7 are arranged concentrically.
Fixed using expansion set 3 between vibrating tube 1 and sleeve 2, the one end of expansion set 3 is provided with a circle bolt 31, tightens on expansion set 3
Bolt 31 can make the outer shroud of expansion set 3 hold the inwall of sleeve 2 tightly, and make the internal ring of expansion set 3 hold the outer wall of vibrating tube 1 tightly.First clean when using
The clean outer wall of vibrating tube 1, the inwall of sleeve 2, and the inner and outer ring of expansion set 3, then uniformly apply one layer of lubricating oil on these faying faces,
Expansion set 3 is enclosed within vibrating tube 1, then is pushed in the gap between vibrating tube 1 and sleeve 2, note keeping vibrating tube 1 and sleeve 2
Coaxial line, should avoid vibrating tube 1 from inclining, and then intersect the circle bolt 31 on expansion set 3 and equably tighten.
Sleeve 2 is designed to isometric with vibrating tube 1, enables the fully wrapped around vibrating tube 1 of sleeve 2, in vibrating tube 1 and sleeve 2
Expansion set 3 is filled in one end of crack, makes expansion set 3 with bolt 31 facing to crack outside, keeps the distance from top of bolt 31
0 ~ 5 centimetre of 2 end face of sleeve.
The length of sleeve 2 can be more slightly shorter than vibrating tube 1, but must guarantee to cover in the important spare part in vibrating tube 1,
For the installation and removal of expansion set 3 are also without difficulty, but the two ends of sleeve 2 can not be longer than the two ends of vibrating tube 1, otherwise will be to expansion set
3 installation and removal bring difficulty.
Shell 4 is the housing of a cylindrical shape, and its inner sleeve sleeve 2, and its two ends is welded with successively raised 1, projection
26, flange 7, because shell 4 it is relatively thin, it is easy to be welded on raised 1 bottom surface, and the sealing welded might as well.Directly exist during dismounting
Commissure separates raised 1 with the cutting of shell 4, takes out the coalition of vibrating tube 1 and sleeve 2, then send out expansion set 3, you can take out
Go out vibrating tube 1.
With reference to Fig. 1 and Fig. 4, be welded with the side wall of shell 4 one with the straight tube 86 communicated inside shell 4, on straight tube 86
It is welded with the instrument case 8 of a hollow cylindrical, opening respectively opening 1, the opening 2 82 on the both sides of instrument case 8, instrument case
8 are provided with screw thread 83 in both ends open edge, the i.e. side of instrument case 8, and instrument case 8 is interior can to place instrument, instrument case 8 and straight tube
86 communicate, and the circuit of instrument can be led to inside shell 4 with Jing straight tubes 86, can be installed on the opening at the two ends of instrument case 8 and be carried
The lid of screw thread 83.
Embodiment 2
A kind of vibration tube-type on-line densimeter, as shown in fig. 6, as different from Example 1, the seam of vibrating tube 1 and sleeve 2
Gap two ends are respectively and fixedly provided with an expansion set 3, and the wall thickness of sleeve 2 should be greater than 1/5th of the caliber of sleeve 2, and sleeve 2 can not mistake
Ground is divided to thicken, it should which the gap between vibrating tube 1 and sleeve 2 can be filled premised on the standard component of expansion set 3 of minimum.
Embodiment 3
A kind of vibration tube-type on-line densimeter, as shown in fig. 7, as different from Example 1, the welding of the two ends of vibrating tube 1
Input duct 10, the outer end in drain pipe road 11 are all welded with an annular protrusion 29, the outside dimension ratio of the annular protrusion 29
The size in input duct 10 and drain pipe road 11 is all big, and annular protrusion 29 sets with input duct 10, the coaxial line of drain pipe road 11
Put.Raised 1, the center through hole of the one thing that projection 26, flange 7 is welded into is also designed to pass through can annular protrusion 29
Size.
Embodiment 4
A kind of vibration tube-type on-line densimeter, as shown in figure 4, as different from Example 1, the two ends screw thread of instrument case 8
83 roots are respectively provided with an annular protrusion 1, and sealing ring 84 is covered on annular protrusion 1, and lid can be with sealing ring after tightening
84 is inconsistent, lift-off seal performance.
This specific embodiment is only that it is not to restriction of the present utility model, ability to explanation of the present utility model
Field technique personnel can make as needed the modification without creative contribution after this specification is read to the present embodiment, but
As long as all being protected by Patent Law in right of the present utility model.
Claims (8)
1. a kind of vibration tube-type on-line densimeter, including vibrating tube（1）Be placed on vibrating tube（1）Outer sleeve（2）, its feature exists
In：The vibrating tube（1）With sleeve（2）Between be provided with expansion set（3）.
2. vibration tube-type on-line densimeter according to claim 1, it is characterised in that：The vibrating tube（1）With sleeve（2）
Two ends flush, the expansion set（3）Located at vibrating tube（1）With sleeve（2）Between crack end, or be respectively arranged at the two ends with one it is swollen
Set（3）.
3. vibration tube-type on-line densimeter according to claim 1, it is characterised in that：The expansion set（3）Set including multiple
In the bolt of its end face（31）, bolt（31）Distance from top sleeve（2）0 ~ 5 centimetre of end face.
4. vibration tube-type on-line densimeter according to claim 1, it is characterised in that：The sleeve（2）Wall thickness is more than it
/ 5th of caliber.
5. vibration tube-type on-line densimeter according to claim 4, it is characterised in that：Also including the shell of tubulose（4）, outward
Shell（4）It is placed on sleeve（2）Outward, shell（4）It is respectively arranged at the two ends with the projection one of a truncated cone-shaped（5）, the projection one on both sides（5）End face
On be respectively provided with the projection two of a cylinder（6）, the projection two on both sides（6）A flange is respectively provided with end face（7）.
6. vibration tube-type on-line densimeter according to claim 5, it is characterised in that：The shell（4）Side wall is provided with
With shell（4）The instrument case of inner space（8）, instrument case（8）It is respectively arranged at two ends with opening one（81）, opening two（82）, opening
One（81）With opening two（82）On be equipped with screw thread for installing lid（83）, screw thread（83）Root is provided with sealing ring（84）,
Screw thread（83）Root is additionally provided with annular protrusion one（85）, sealing ring（84）Against annular protrusion one（85）Arrange.
7. vibration tube-type on-line densimeter according to claim 5, it is characterised in that：The flange on both sides（7）It is upper equal
It is provided with three road annular grooves（71）, the annular groove（71）With flange（7）It is arranged concentrically.
8. vibration tube-type on-line densimeter according to claim 1, it is characterised in that：The vibrating tube（1）Distinguish at two ends
With vibrating tube（1）Connection is provided with input duct（10）, drain pipe road（11）, the input duct（10）, drain pipe road（11）'s
Extend annular protrusion two in outer end（9）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621118293.4U CN206146783U (en) | 2016-10-12 | 2016-10-12 | Vibration tubular on -line densimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621118293.4U CN206146783U (en) | 2016-10-12 | 2016-10-12 | Vibration tubular on -line densimeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206146783U true CN206146783U (en) | 2017-05-03 |
Family
ID=58620896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621118293.4U Active CN206146783U (en) | 2016-10-12 | 2016-10-12 | Vibration tubular on -line densimeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206146783U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116690180A (en) * | 2023-05-31 | 2023-09-05 | 珠海市新万山仪表有限公司 | Single straight tube liquid density measuring device and assembling method thereof |
-
2016
- 2016-10-12 CN CN201621118293.4U patent/CN206146783U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116690180A (en) * | 2023-05-31 | 2023-09-05 | 珠海市新万山仪表有限公司 | Single straight tube liquid density measuring device and assembling method thereof |
| CN116690180B (en) * | 2023-05-31 | 2024-02-13 | 珠海市新万山仪表有限公司 | Single straight tube liquid density measuring device and assembling method thereof |
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