CN206146784U - Tuning fork formula on -line densimeter - Google Patents
Tuning fork formula on -line densimeter Download PDFInfo
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- CN206146784U CN206146784U CN201621132075.6U CN201621132075U CN206146784U CN 206146784 U CN206146784 U CN 206146784U CN 201621132075 U CN201621132075 U CN 201621132075U CN 206146784 U CN206146784 U CN 206146784U
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- fork
- tuning
- line densimeter
- mounting post
- fork type
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Abstract
The utility model discloses a tuning fork formula on -line densimeter, aim at providing one kind at the long -term tuning fork formula on -line densimeter who uses the difficult measuring error of production in back, its technical scheme main points are including the display screen, the ring flange, the erection column, the fork body and arc recess etc, use the back for a long time at tuning fork formula on -line densimeter, because foil gage glue glues and sticks in grooved bottom, so the foil gage is contradicted with the upper end of the fork body all the time steadily, thereby make between the fork body and the foil gage be connected more firm, make the foil gage prepare more to the vibration frequency's of the fork body detection, setting up of arc recess effectively reduces the influence of fork natural frequency physically to the foil gage, thereby make whole tuning fork formula on -line densimeter's measuring result more accurate, make tuning fork formula on -line densimeter have in the long -term advantage of using the difficult measuring error of production in back.
Description
Technical field
This utility model is related to metrical instrument field, more particularly to a kind of tuning-fork type on-line densimeter.
Background technology
On-line densimeter, is the equipment of a kind of concentration for continuous on-line measurement liquid and density, can be directly used for work
Industry production process.On-line densimeter includes capacitance differential pressure transducer and coupled, insertion production process
A pair of pressure repeaters.There is individual temperature sensor between two pressure repeaters, for the temperature change of compensation process liquid.
Intelligent online density is calculated as two-wire system density transmitter, is mainly used in industrial stokehold, on-line densimeter according to concentration with it is close
The size of degree produces corresponding 4-20mA signals, can carry out remote calibration with monitoring by digital communication.
At present, as shown in Figure 1 to Figure 2, tuning-fork type on-line densimeter on the market includes shell 1, is provided with shell 1 aobvious
Show device, the lower end of shell 1 is connected with ring flange 2, the lower end of ring flange 2 is provided with connecting pole 3, the bottom of connecting pole 3 be connected with
Itself coaxial mounting post 4, the lower end of mounting post 4 is provided with tuning fork 5, and tuning fork 5 includes the fork body 51 being symmetrically set, is attached to
Upper end be provided with two wedge-shaped slots 10, the bottom of wedge-shaped slot 10 is provided with pillar foil gauge 6, and the lower end of connecting pole 3 is provided with screw thread
The screw being connected in wedge-shaped slot 10, screw is mutually contradicted with foil gauge 6.
This tuning-fork type on-line densimeter after long-term use, can be rubbed between pilot nail 11 and wedge-shaped slot 10 due to long-term
Wipe and cause abrasion, this abrasion can cause the connection between pilot nail 11 and wedge-shaped slot 10 to produce loosening, so that tuning fork
When in use, the position of foil gauge 6 is subjected to displacement formula on-line densimeter, so that the measurement result of tuning-fork type on-line densimeter
Produce error.
Utility model content
The purpose of this utility model is to provide a kind of tuning-fork type on-line densimeter, and it has and is not likely to produce after long-term use
The advantage of measurement error.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of tuning-fork type on-line densimeter, including shell, ring flange, connecting pole and mounting post, the lower end of mounting post connects
Tuning fork is connected to, tuning fork includes two symmetrical fork bodies, and the upper end of mounting post is provided with the fluting being embedded in for connecting pole, fluting
Bottom glue glues the glutinous junction for having foil gauge inconsistent with fork body upper end respectively, fork body and mounting post and is provided with and mounting post
Coaxial arc groove.
It is arranged such, after tuning-fork type on-line densimeter long-time use, sticks in the bottom of fluting because foil gauge glue glues
Portion, so foil gauge is stably contradicted all the time with the upper end of fork body, so that the connection between fork body and foil gauge is more steady
Gu so that foil gauge more prepares for the detection of the frequency of vibration of fork body, and the setting of arc groove is effectively reduced fork body
Impact of the natural frequency to foil gauge, so that the measurement result of whole tuning-fork type on-line densimeter is more accurate so that sound
V shape on-line densimeter has the advantages that to be not likely to produce measurement error after long-term use.
Further arrange：The upper end of fork body is provided with the bending section being connected with mounting post lower end, and bending section is along mounting post outside
Direction bending is arranged.
It is arranged such, by using cooperatively for bending section and arc groove so that fork body is extending into quantity of fluid to be measured
When interior, due to pitching each position of body all for streamlined, so liquid to flow through resistance suffered during fork body less so that should
The detection of frequency of the fork body in becoming piece to entering into liquid to be detected is hardly affected by resistance so that foil gauge for
The detection of frequency is more accurate, so that tuning-fork type on-line densimeter is more smart for the detection of the density of liquid to be detected
It is accurate.
Further arrange：It is provided with the outside of fork body along the raised cambered surface of mounting post lateral direction.
Be arranged such, further reduce due to pitch body the resistance of liquid to be detected is caused for the shadow of frequency
Ring so that foil gauge is more accurate for the detection of the frequency of fork body, and causes to pitch between body and liquid to be detected by cambered surface
Contact area it is bigger so that fork body frequency by liquid to be detected Effects of Density it is bigger so that fork body frequency more
Plus be easy to by strain measurement, so as to ensure that the measurement accuracy of tuning-fork type on-line densimeter.
Further arrange：The lower end outside of fork body is provided with inclined plane.
It is arranged such, further increases the contact area between fork body and liquid to be detected, and causes liquid to be detected
Flow through resistance suffered during fork body less, on the one hand reduce impact of the resistance for frequency detecting, on the other hand also cause
Fork body causes the change of frequency of vibration to become apparent from due to the density of liquid to be detected, so as to be more favorable for foil gauge for fork
The detection of body frequency, improves the measurement accuracy of foil gauge.
Further arrange：Angle between inclined plane and the inner side one side of fork body is set to 25 °～35 °.
It is arranged such, in this angle, the contact pitched between body and liquid to be detected is more abundant, pitches the frequency of vibration of body
Change and resistance between impact it is less, so as to further enhance the accuracy of foil gauge measurement so that whole tuning-fork type
On-line densimeter is more accurate for the detection of the density of liquid, it is ensured that the reliability of tuning-fork type on-line densimeter.
Further arrange：Connecting pole offers the through hole passed through for the wire of connection foil gauge.
Be arranged such, when the connection of post and mounting post is attached, by through hole it is convenient by wire from connection
Post inside is drawn and is connected with display, so that wire will not be exposed to the outside of tuning-fork type on-line densimeter so that whole
Individual tuning-fork type on-line densimeter more integrated setting, also convenient when in use, efficiently avoid because wire is naked
It is exposed in air and causes the accelerated ageing of wire.
Further arrange：Shell is provided with the display screen for showing fluid density being electrically connected with foil gauge.
It is arranged such, when to carrying out density measure, is more intuitively shown the density of liquid by display screen,
So that the use of whole tuning-fork type on-line densimeter is more convenient, and display is placed on shell so that measurement
Personnel are more convenient to operate for tuning-fork type on-line densimeter.
Further arrange：Fork body is set to stainless steel fork body.
It is arranged such, due to stainless self-characteristic so that pitch decay resistance, resistance to elevated temperatures and the structure of body
Intensity is more outstanding, so that tuning fork on-line densimeter is more stable when in use, greatly reduces outside environmental elements
For the impact of measurement result, it is ensured that tuning-fork type on-line densimeter also ensures that after long-term use the accuracy of its measurement,
So that the service life of whole tuning-fork type on-line densimeter is longer.
In sum, this utility model has the advantages that：Connecting pole is embedded in the fluting of mounting post, not only
So that the connection between connecting pole and mounting post is even closer, and the length of the external diameter of mounting post can be arranged to and is connected
The outer diameter length of post is equal, when connecting pole is embedded in mounting post, both is surface-treated so that both integrally set
Put, so that tuning-fork type on-line densimeter is measured in the density to liquid, when liquid flows through connecting pole with mounting post, liquid
Resistance suffered by body is less, so as to greatly reduce impact of the resistance for density measure so that whole tuning-fork type is close online
The measurement result of degree meter is more accurate.
Description of the drawings
Fig. 1 is the exploded perspective view of tuning-fork type on-line densimeter in background technology;
Fig. 2 is the structural representation of the tuning fork of tuning-fork type on-line densimeter in background technology;
Fig. 3 is the exploded perspective view of the tuning-fork type on-line densimeter of embodiment 1；
Fig. 4 is the structural representation of the tuning fork of embodiment 1；
Fig. 5 is the structural representation of the inclined plane of embodiment 1；
Fig. 6 is the enlarged drawing in Fig. 5 at A.
In figure, 1, shell；2nd, ring flange；3rd, connecting pole；31st, through hole；4th, mounting post；41st, slot；5th, tuning fork；51st, pitch
Body；52nd, bending section；53rd, cambered surface；6th, foil gauge；7th, arc groove；8th, inclined plane；9th, display screen；10th, wedge-shaped slot；11st, install
Nail.
Specific embodiment
This utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment 1：A kind of tuning-fork type on-line densimeter, as shown in figure 3, including shell 1, on shell 1 display screen is provided with
9, the lower end of shell 1 is connected with ring flange 2, and the lower end of ring flange 2 is connected with connecting pole 3, and the inside of connecting pole 3 is provided with through certainly
The through hole 31 of body, the lower end of connecting pole 3 is connected with mounting post 4, and connecting pole 3 be attached to be connected after be surface-treated,
So that connecting pole 3 be attached to integrated setting.
As shown in figure 4, the upper end of mounting post 4 is provided with fluting 41, viscous the sticking of the bottom glue of fluting 41 has two foil gauges 6, two
Foil gauge 6 is symmetrical arranged, and foil gauge 6 is connected with wire, and wire is entered into inside shell 1 by the through hole 31 of connecting pole 3, and outer
Circuit board in shell 1 is connected, i.e., foil gauge 6 is electrically connected with display screen 9 by wire.
As shown in Figure 5 to Figure 6, the lower end of mounting post 4 is provided with tuning fork 5, and tuning fork 5 includes two symmetrical fork bodies 51,
The upper end of fork body 51 is provided with the bending section 52 for being fixed on the lower end of mounting post 4, and bending section 52 is carried out to the lateral direction of mounting post 4
Bending, bending section 52 is provided with the arc groove 7 coaxial with mounting post 4 with the junction of mounting post 4.
The outside of fork body 51 is provided with to the raised cambered surface 53 of the lateral direction of mounting post 4, pitches the medial surface and another fork of body 51
The medial surface of body 51 is mutually horizontally disposed with, and the lower end outside for pitching body 51 is provided with inclined plane 8, and inclined plane 8 and the inner side for pitching body 51
Angle simultaneously is set to 30 °, while pitching body 51 is set to stainless steel fork body 51.
When density measure is carried out to liquid using tuning-fork type on-line densimeter, ring flange 2 is attached to for be checked first
Survey liquid flowing pipeline on so that the tuning fork 5 of tuning-fork type on-line densimeter is placed in liquid to be detected, fork body 51 with it is to be detected
Liquid is fully contacted.
Tuning-fork type on-line densimeter is now opened, tuning fork 5 is vibrated with natural frequency, when liquid to be detected flows through tuning fork
5 and two fork bodies 51 it is inconsistent when, due to the density of liquid to be detected itself, the vibration of tuning fork 5 is hindered by liquid to be detected
Hinder, the vibration of tuning fork 5 changes, now the arc groove 7 between bending section 52 and mounting post 4 reduces the shadow of natural frequency
Ring, the resonant frequency of tuning fork 5 produces change, the mechanically deform that now inconsistent with fork body 51 foil gauge 6 is produced also becomes
Change, so as to the resistance for causing foil gauge 6 changes, the change of resistance causes the change of other electrical quantities, by shell 1
Circuit on circuit board is changed to this electrical quantities, and is shown by the display screen 9 on shell 1, is shown to be checked
Survey the density of liquid.
The above embodiments are 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 tuning-fork type on-line densimeter, including shell（1）, ring flange（2）, connecting pole（3）And mounting post（4）, install
Post（4）Lower end be connected with tuning fork（5）, tuning fork（5）Including two symmetrical fork bodies（51）, it is characterised in that：Described
Mounting post（4）Upper end be provided with and supply connecting pole（3）Embedded fluting（41）, fluting（41）Bottom glue it is viscous glutinous have respectively with fork
Body（51）The inconsistent foil gauge in upper end（6）, pitch body（51）With mounting post（4）Junction be provided with and mounting post（4）Coaxially
Arc groove（7）.
2. tuning-fork type on-line densimeter according to claim 1, it is characterised in that：Described fork body（51）Upper end be provided with
With mounting post（4）The bending section of lower end connection（52）, bending section（52）Along mounting post（4）Lateral direction bending is arranged.
3. tuning-fork type on-line densimeter according to claim 2, it is characterised in that：Described fork body（51）Outside be provided with
Along mounting post（4）The raised cambered surface of lateral direction（53）.
4. tuning-fork type on-line densimeter according to claim 3, it is characterised in that：Described fork body（51）Lower end outside
It is provided with inclined plane（8）.
5. tuning-fork type on-line densimeter according to claim 4, it is characterised in that：Described inclined plane（8）With fork body
（51）Inner side one side between angle be set to 25 °～35 °.
6. tuning-fork type on-line densimeter according to claim 1, it is characterised in that：Described connecting pole（3）Offer confession
Connection foil gauge（6）The through hole that passes through of wire（31）.
7. tuning-fork type on-line densimeter according to claim 1, it is characterised in that：Described shell（1）It is provided with and answers
Become piece（6）The display screen for showing fluid density being electrically connected with（9）.
8. tuning-fork type on-line densimeter according to claim 5, it is characterised in that：Described fork body（51）It is set to stainless
Steel fork body（51）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621132075.6U CN206146784U (en) | 2016-10-18 | 2016-10-18 | Tuning fork formula on -line densimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621132075.6U CN206146784U (en) | 2016-10-18 | 2016-10-18 | Tuning fork formula on -line densimeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206146784U true CN206146784U (en) | 2017-05-03 |
Family
ID=58622623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621132075.6U Active CN206146784U (en) | 2016-10-18 | 2016-10-18 | Tuning fork formula on -line densimeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206146784U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211725A (en) * | 2017-07-08 | 2019-01-15 | 北京工标传感技术有限公司 | A kind of cleaning device of tuning fork densitometer |
| CN109211723A (en) * | 2017-07-08 | 2019-01-15 | 北京工标传感技术有限公司 | A kind of direct insertion tuning fork densitometer |
| CN109655376A (en) * | 2018-09-26 | 2019-04-19 | 珠海市新万山仪表有限公司 | A kind of novel tuning fork fork body of the anti-delay of UV type structural I-beam |
| CN110208142A (en) * | 2019-05-28 | 2019-09-06 | 朝阳市加华电子有限公司 | Tuning-fork type densitometer |
| CN112611676A (en) * | 2020-05-11 | 2021-04-06 | 江苏迅创科技股份有限公司 | Single-probe online density measurement method and online densimeter |
-
2016
- 2016-10-18 CN CN201621132075.6U patent/CN206146784U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211725A (en) * | 2017-07-08 | 2019-01-15 | 北京工标传感技术有限公司 | A kind of cleaning device of tuning fork densitometer |
| CN109211723A (en) * | 2017-07-08 | 2019-01-15 | 北京工标传感技术有限公司 | A kind of direct insertion tuning fork densitometer |
| CN109211725B (en) * | 2017-07-08 | 2023-09-19 | 北京工标传感技术有限公司 | Cleaning device of tuning fork densimeter |
| CN109655376A (en) * | 2018-09-26 | 2019-04-19 | 珠海市新万山仪表有限公司 | A kind of novel tuning fork fork body of the anti-delay of UV type structural I-beam |
| CN110208142A (en) * | 2019-05-28 | 2019-09-06 | 朝阳市加华电子有限公司 | Tuning-fork type densitometer |
| CN112611676A (en) * | 2020-05-11 | 2021-04-06 | 江苏迅创科技股份有限公司 | Single-probe online density measurement method and online densimeter |
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