CN208171350U - Wedge flow meter with heating and thermal insulation set - Google Patents
Wedge flow meter with heating and thermal insulation set Download PDFInfo
- Publication number
- CN208171350U CN208171350U CN201820851976.3U CN201820851976U CN208171350U CN 208171350 U CN208171350 U CN 208171350U CN 201820851976 U CN201820851976 U CN 201820851976U CN 208171350 U CN208171350 U CN 208171350U
- Authority
- CN
- China
- Prior art keywords
- heating
- thermal insulation
- insulation set
- pipe
- flow meter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of wedge flow meters with heating and thermal insulation set, including measurement pipe, the sphenoid being arranged on the measurement inside pipe wall and positive pressure pipe and negative pressure pipe at left and right sides of the sphenoid, the outside of the measurement pipe is equipped with heating and thermal insulation set, and the both ends of the heating and thermal insulation set are respectively equipped with steam inlet conduit and steam outlet conduit.The utility model can heat the temperature of detected fluid, be warmed to and meet technique requirement coincidence measurement requirement, realize high-acruracy survey.Guarantee that scene operates normally.
Description
Technical field
The utility model relates to fluid measurement technical fields, more particularly to a kind of wedge flow with heating and thermal insulation set
Meter.
Background technique
Wedge flow sensor is a kind of differential pressure type flow instrument, and measuring principle and other differential pressure type flow measurement instrument are complete
It is exactly the same, it is all with law of conservation of energy, Bernoulli equation and the flow-measuring method based on flowing continuity equation.It changes
Having become Traditional differential pressure formula instrument, the heart throttles in the duct.The detection piece of wedge-shaped throttling set is sphenoid, it is the section of one piece of V-arrangement
Part is flowed, its round and smooth apex angle downward, is conducive to liquid or thick liquid containing suspended particulate in this way and passes through, will not save
It flows part upstream side and generates delay.It can measure gas, liquid and steam, suitable for the measurement of high viscosity fluid and dirty fluid,
When viscosity is up to 500MPa.s, high-acruracy survey can be still carried out.So far in petrochemical industry, steel, the industries such as oil refining obtain extended measurements.
Although wedge-shaped throttling set is suitable for the measurement of high viscosity fluid and dirty fluid, there are some special industries and spy
Different fluid, temperature remains unchanged when they need to measure, if temperature declines after measurement temperature flows a period of time with fluid,
So the viscosity of fluid can change, while temperature decline is excessive, and the physical phenomenons such as solidification and crystallization can occur for fluid, cause to survey
Amount can not carry out, and seriously will lead to instrument subscription rate.There are many fluids in general oil refining and chemical industry, they are only in minimum temperature
It can work in degree range, once there is temperature change, the physical of fluid can change.These variations are normally being transported
It can not be solved when row, only pack heat-preservation cotton on tested process pipe, do so the decline that can only reduce temperature, it cannot be from root
Make measured medium temperature-resistant on this.
Utility model content
The purpose of this utility model is to be directed to technological deficiency existing in the prior art, and provide a kind of with heating and thermal insulation
The wedge flow meter of set.
It is for technical solution used by realization the purpose of this utility model：
A kind of wedge flow meter with heating and thermal insulation set, including measurement pipe, the wedge being arranged on the measurement inside pipe wall
Body and positive pressure pipe and negative pressure pipe at left and right sides of the sphenoid, the outside of the measurement pipe are equipped with heating and protect
The both ends of temperature set, the heating and thermal insulation set are respectively equipped with steam inlet conduit and steam outlet conduit.
In the above-mentioned technical solutions, the section of the sphenoid is V-shape, and the apex angle of the sphenoid is arc transition.
The circulation area formed between the sphenoid and measurement pipe is round a part.
In the above-mentioned technical solutions, the fluid flowed along measurement pipe, the steam inlet conduit are located at the fluid
Upstream, the steam outlet conduit are located at the downstream of the fluid.
In the above-mentioned technical solutions, the angle between the steam inlet conduit and steam outlet conduit is 180 °.
In the above-mentioned technical solutions, the both ends of the measurement pipe are welded with body flange, and the body flange passes through fastening
Part is connected with the sealing surface of companion flange, and the welding end and process pipe of the companion flange are welded.
In the above-mentioned technical solutions, gasket seal is equipped between the body flange and the companion flange.
In the above-mentioned technical solutions, the sealing surface of the body flange is vertical with measurement pipe axis.
In the above-mentioned technical solutions, the tube wall of heating and thermal insulation set is equipped with is pierced by for positive pressure pipe and negative pressure pipe
Circular hole.The positive pressure pipe and negative pressure pipe and the circular hole sealing welding.
In the above-mentioned technical solutions, the end of the positive pressure pipe and negative pressure pipe is equipped with pressure flange.
Compared with prior art, the utility model has the beneficial effects that：
The wedge flow meter with heating and thermal insulation set of the utility model can heat the temperature of detected fluid, heat
Coincidence measurement requirement is required to technique is met, realizes high-acruracy survey.Guarantee that scene operates normally.
Detailed description of the invention
Fig. 1 show the structural schematic diagram of the utility model.
Wherein：1- companion flange, 2- body flange, 3- gasket seal, the steam inlet 4- conduit, 5- positive pressure pipe, 6- are surveyed
Buret, 7- heating and thermal insulation set, 8- negative pressure pipe, 9- body flange, 10- companion flange, 11- fastener, 12- sphenoid, 13- steam
Vapor outlet conduit.
Specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that this place
The specific embodiment of description is only used to explain the utility model, is not used to limit the utility model.
A kind of wedge flow meter with heating and thermal insulation set, including measurement pipe 6, is arranged on 6 inner wall of measurement pipe
Sphenoid 12 and positive pressure pipe 5 and negative pressure pipe 8 at left and right sides of the sphenoid 12, the outside of the measurement pipe 6
Equipped with heating and thermal insulation set 7, the both ends of the heating and thermal insulation set 7 are respectively equipped with steam inlet conduit 4 and steam outlet conduit 13.
The setting of sphenoid 12, it is possible to increase the reynolds number range of flowmeter is wide, and maximum can reach 106Minimum can be to 300, this
A reynolds number range is that general differential pressure meter is incomparable.
It is refining oil, chemical industry is frequently encountered high viscosity, and must control the stream of operation temperature in a certain range
Body, these fluids will appear crystallization once temperature dropped to a certain extent, and the physical phenomenons such as solidification lead to not measure, add
The setting of hot muff 7 can effectively solve the problems, such as this, and heating and thermal insulation set 7 is installed in the cylinder type part outside measurement pipe, add
There is sufficient space between hot muff 7 and measurement pipe outside diameter, and steam inlet and steam (vapor) outlet be set in heating and thermal insulation set 7,
As long as accessing steam from the arrival end of collet at the scene, the space for allowing steam to be formed between heating and thermal insulation set 7 and measurement pipe 6 is followed
Ring heating is reheated to the temperature that technique requires to the fluid near the measurement point again, no matter process pipe how long also not
Be afraid of temperature decline, it is ensured that the fluid near measurement pipe and measurement pipe, operation temperature reach technique requirement, obtain it accurately
Measurement.
It is preferred that the section of the sphenoid 12 is V-shape, apex angle is arc transition.The sphenoid 12 with
The circulation area formed between measurement pipe is round a part.
It is preferred that along the flow direction of measurement tube fluid, the steam inlet conduit 4 is located at the upper of the fluid
Trip, the steam outlet conduit 13 are located at the downstream of the fluid.
The preferred embodiment, the angle between the steam inlet conduit and steam outlet conduit are 180 °.
The preferred embodiment, the both ends of the measurement pipe 6 are welded with body flange 2,9, and the body flange 2,9 passes through tight
Firmware 11 is connected with the sealing surface of companion flange 1,10, and the welding end and process pipe of the companion flange are welded.
It is preferred that being equipped with gasket seal 3 between the body flange 2,9 and the companion flange 1,10.
It is preferred that the sealing surface of the body flange 2,9 is vertical with measurement pipe axis.
The preferred embodiment, the tube wall of heating and thermal insulation set 7 is equipped with to be pierced by for positive pressure pipe 5 and negative pressure pipe 8
Circular hole.It also to be welded at pressure short tube (including positive pressure pipe 5 and negative pressure pipe 8) and the circular hole of heating and thermal insulation set 7, in order to avoid have steaming
Vapour exposes.
The end of the preferred embodiment, the positive pressure pipe 5 and negative pressure pipe 8 is equipped with pressure flange.The pressure flange
For the flanged joint with differential pressure transmitter, to transmit pressure difference signal.
The processing method of the wedge flow meter of the utility model：
Body flange and measurement pipe are first welded into (there are machining allowance for measurement bore), then machine internal diameter with
Flange sealing surface guarantees internal diameter, guarantees that flange sealing surface is vertical with measurement pipe axis.Then sphenoid fillet is embedding downward
Enter into measurement pipe, and open two pressure ports in measurement pipe, pressure short tube and pressure flange welding get well and process pressure flange
Sealing surface pressure bore is processed two circular holes in insulation jacket and is put into well with the pressure port in measurement pipe to just welding afterwards
Pressure short tube, and burn-on in insulation jacket steam inlet conduit and steam outlet conduit, steam inlet conduit and steam (vapor) outlet
Conduit installation is in 180 °.
The above is only the preferred embodiment of the utility model, it is noted that for the general of the art
For logical technical staff, without departing from the principle of this utility model, several improvements and modifications can also be made, these change
It also should be regarded as the protection scope of the utility model into retouching.
Claims (9)
1. the wedge flow meter with heating and thermal insulation set, which is characterized in that a kind of wedge flow meter with heating and thermal insulation set, packet
Include measurement pipe, the sphenoid being arranged on the measurement inside pipe wall and positive pressure pipe at left and right sides of the sphenoid and
Negative pressure pipe, the outside of the measurement pipe are equipped with heating and thermal insulation set, and the both ends of the heating and thermal insulation set are respectively equipped with steam inlet
Conduit and steam outlet conduit.
2. the wedge flow meter as described in claim 1 with heating and thermal insulation set, which is characterized in that the section of the sphenoid
For V-shape, the apex angle of the sphenoid is arc transition.
3. the wedge flow meter as described in claim 1 with heating and thermal insulation set, which is characterized in that flowed along measurement pipe
Fluid, the steam inlet conduit are located at the upstream of the fluid, and the steam outlet conduit is located at the downstream of the fluid.
4. the wedge flow meter as described in claim 1 with heating and thermal insulation set, which is characterized in that the steam inlet conduit
Angle between steam outlet conduit is 180 °.
5. the wedge flow meter as described in claim 1 with heating and thermal insulation set, which is characterized in that the both ends of the measurement pipe
It is welded with body flange, the body flange is connected by fastener with the sealing surface of companion flange, the companion flange
Welding end and process pipe weld.
6. the wedge flow meter as claimed in claim 5 with heating and thermal insulation set, which is characterized in that the body flange and institute
It states and is equipped with gasket seal between companion flange.
7. as claimed in claim 5 with heating and thermal insulation set wedge flow meter, which is characterized in that the body flange it is close
Cover is vertical with measurement pipe axis.
8. the wedge flow meter as described in claim 1 with heating and thermal insulation set, which is characterized in that the heating and thermal insulation set
Tube wall is equipped with the circular hole being pierced by for positive pressure pipe and negative pressure pipe, the positive pressure pipe and negative pressure pipe and the circular hole seals
Welding.
9. the wedge flow meter as described in claim 1 with heating and thermal insulation set, which is characterized in that the positive pressure pipe and negative
The end of pressure pipe is equipped with pressure flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820851976.3U CN208171350U (en) | 2018-05-31 | 2018-05-31 | Wedge flow meter with heating and thermal insulation set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820851976.3U CN208171350U (en) | 2018-05-31 | 2018-05-31 | Wedge flow meter with heating and thermal insulation set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208171350U true CN208171350U (en) | 2018-11-30 |
Family
ID=64364191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820851976.3U Active CN208171350U (en) | 2018-05-31 | 2018-05-31 | Wedge flow meter with heating and thermal insulation set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208171350U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111015120A (en) * | 2019-12-26 | 2020-04-17 | 安为机电设备制造(上海)有限公司 | Production method of differential pressure type flowmeter |
-
2018
- 2018-05-31 CN CN201820851976.3U patent/CN208171350U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111015120A (en) * | 2019-12-26 | 2020-04-17 | 安为机电设备制造(上海)有限公司 | Production method of differential pressure type flowmeter |
| CN111015120B (en) * | 2019-12-26 | 2021-04-23 | 安为机电设备制造(上海)有限公司 | Production method of differential pressure type flowmeter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105864642B (en) | A kind of pipeline leakage testing device and detection method | |
| US8429983B2 (en) | Insertion type flow measuring device for measuring characteristics of a flow within a pipe | |
| US3355946A (en) | Pitot tubes | |
| CN209214694U (en) | A kind of screen pipe for fluid flowmeter detection device | |
| CN208171350U (en) | Wedge flow meter with heating and thermal insulation set | |
| CN207113940U (en) | Throat's pressure Long Nozzle throttling arrangement | |
| CN104329951B (en) | A kind of device utilizing the horizontal out-tubular condensing heat exchange of on-condensible gas bleed strengthening | |
| CN209342180U (en) | A kind of Pi Tuoba flowmeter | |
| CN205449171U (en) | Structure of zero resistance orifice flowmeter and definite its flow correction coefficient | |
| CN105424106B (en) | A kind of vertically-mounted structure of V cone flow meters | |
| CN204203030U (en) | A kind of intelligent densitometer | |
| CN207499826U (en) | One kind is with brill mud flow rate monitoring device | |
| CN209605887U (en) | A kind of multi-parameter integral uniform velocity tube flowmeter | |
| JP6435345B2 (en) | Flowmeter | |
| CN201081743Y (en) | Cannula type flow sensor and intelligent cannula type flow meter with the cannula type flow sensor | |
| CN209296166U (en) | A kind of small-bore pipeline temperature measuring equipment | |
| CN205981307U (en) | Buret is surveyed to ring type vortex street | |
| CN209639774U (en) | A kind of wedge-shaped differential pressure flowmeter with heat insulation function | |
| CN201318957Y (en) | Probe-type flow sensor and intelligent probe-type flowmeter comprising same | |
| CN207248254U (en) | A kind of apparatus for measuring air quantity | |
| CN109141546A (en) | Tandem aerofoil profile differential pressure block cross-sectional flow meter, differential pressure measuring installation and measurement method | |
| CN208937112U (en) | A kind of balanced flow measuring device and Flow Measuring System | |
| CN210922730U (en) | Leakage-free high-temperature-resistant throttling device | |
| CN208254560U (en) | A kind of flow measurement device based on adjusting type annular groove orifice plate | |
| CN109974795A (en) | A kind of balanced flow measuring device and Flow Measuring System |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |