CN105277238A - One-piece differential pressure type flowmeter - Google Patents
One-piece differential pressure type flowmeter Download PDFInfo
- Publication number
- CN105277238A CN105277238A CN201510827213.6A CN201510827213A CN105277238A CN 105277238 A CN105277238 A CN 105277238A CN 201510827213 A CN201510827213 A CN 201510827213A CN 105277238 A CN105277238 A CN 105277238A
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- CN
- China
- Prior art keywords
- differential pressure
- pipe
- pressure chamber
- flange
- integral type
- 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.)
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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
- G01F7/00—Volume-flow measuring devices with two or more measuring ranges; Compound meters
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- Measuring Volume Flow (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
Abstract
The invention belongs to the measurement technology field, relates to a one-piece differential pressure type flowmeter and solves a problem of zero drift of a differential pressure type flowmeter in the prior art. The one-piece differential pressure type flowmeter comprises an inlet pipe, an outlet pipe and a differential pressure flow transmitter, wherein a bending pipe structure is arranged between upper portion ports of a positive pressure chamber and a negative pressure chamber of the differential pressure flow transmitter, the bending pipe structure is provided with a throttling member and is a U-shaped bending pipe or a T-shaped bending pipe, the throttling member is arranged at a vertical straight pipe segment of the U-shaped bending pipe or a horizontal straight pipe segment of the T-shaped bending pipe, the differential pressure flow transmitter comprises the positive pressure chamber and the negative pressure chamber, the inlet pipe is connected with a lower portion port of the positive pressure chamber through a flange, the outlet pipe is connected with a lower portion port of the negative pressure chamber through a flange, and an inlet and an outlet of the inlet pipe and the outlet pipe are provided with flanges. According to the one-piece differential pressure type flowmeter, the structure is simple, no surge pot and no relatively long pressure leading pipe are necessary, zero drift caused by antifreeze fluid deletion can be avoided, and high reliability is realized.
Description
One, technical field the invention belongs to the field of measuring technique of flow, particularly relates to a kind of differential pressure flowmeter.
Two, background technology differential pressure flowmeter is widely used in various gas and the liquid flow measurement of industrial circle, and it is simple with structure, high temperature resistant, high pressure, and dry method is demarcated, and the advantages such as online software approval, favor by user deeply.But when some are less than 120 DEG C of liquid medium measuring flows, need balance tank, longer pressure guiding pipe, pressure guiding pipe needs to add anti freezing solution, and regular replenishment anti freezing solution, maintenance workload is large.
Three, summary of the invention the object of this invention is to provide a kind of integral type differential pressure flowmeter, solve the problem of differential pressure flowmeter zero point drift, it comprises induction pipe, outlet and differential flow converter, bend pipe structure is provided with between the plemum and negative pressure chamber's upper port of described differential flow converter, described bend pipe structure is provided with throttling element, described bend pipe structure is U-bend or T-shaped bend pipe, described throttling element is arranged on U-bend straight vertical pipeline section or in T-shaped bend pipe horizontal straight tube section, described differential flow converter comprises plemum and negative pressure chamber, induction pipe is connected with plemum lower port by flange, described outlet is connected with negative pressure chamber lower port by flange, this flange is oval flange, the import and export of described induction pipe and outlet are provided with flange, structure of the present invention is simple, without the need to balance tank and longer pressure guiding pipe, zero point drift can not be produced because of anti freezing solution disappearance, reliability is high.
Four, description of drawings 1 is integral type differential pressure flowmeter T-shaped bend pipe schematic diagram of the present invention;
Fig. 2 is integral type differential pressure flowmeter U-bend schematic diagram of the present invention.
Five, embodiment is described further integral type differential pressure flowmeter of the present invention below in conjunction with Fig. 1 and Fig. 2, it comprises induction pipe 2, outlet 7 and differential flow converter 3, bend pipe structure is provided with between the plemum and negative pressure chamber's upper port of described differential flow converter 3, described bend pipe structure is provided with throttling element 5, described bend pipe structure is U-bend 6 or T-shaped bend pipe 4, described throttling element 5 is arranged on U-bend 6 straight vertical pipeline section or in T-shaped bend pipe 4 horizontal straight tube section, described differential flow converter 3 comprises plemum and negative pressure chamber, induction pipe 2 is connected with plemum lower port by flange, described outlet 7 is connected with negative pressure chamber lower port by flange, this flange is oval flange, the import and export of described induction pipe 2 and outlet 7 are provided with flange 1, liquid is by the plemum lower port entering differential flow converter 3 after the first level of induction pipe 2 vertically upward, by differential flow converter 3 and the bend pipe structure that arranges between plemum and negative pressure chamber's upper port thereof, again by negative pressure chamber's lower port and the outlet 7 of differential flow converter 3, first rear horizontal output vertically downward.
Claims (8)
1. integral type differential pressure flowmeter, comprises induction pipe, outlet and differential flow converter, it is characterized in that being provided with bend pipe structure between the plemum and negative pressure chamber's upper port of described differential flow converter.
2. integral type differential pressure flowmeter as claimed in claim 1, is characterized in that described bend pipe structure is U-bend or T-shaped bend pipe.
3. integral type differential pressure flowmeter as claimed in claim 2, is characterized in that being provided with throttling element on described bend pipe structure.
4. integral type differential pressure flowmeter as claimed in claim 2 or claim 3, is characterized in that described throttling element is arranged on U-bend straight vertical pipeline section.
5. integral type differential pressure flowmeter as claimed in claim 2 or claim 3, is characterized in that described throttling element is arranged in T-shaped bend pipe horizontal straight tube section.
6. integral type differential pressure flowmeter as claimed in claim 1, it is characterized in that described differential flow converter comprises plemum and negative pressure chamber, induction pipe is connected with plemum lower port by flange, and described outlet is connected with negative pressure chamber lower port by flange.
7. integral type differential pressure flowmeter as claimed in claim 6, is characterized in that described flange is oval flange.
8. the integral type differential pressure flowmeter as described in claim 1 or 6, is characterized in that the import and export of described induction pipe and outlet are provided with flange.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510827213.6A CN105277238A (en) | 2015-11-16 | 2015-11-16 | One-piece differential pressure type flowmeter |
| CN201610169145.3A CN105865557A (en) | 2015-11-16 | 2016-03-14 | A super-high-viscosity gas-liquid two phase separation metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510827213.6A CN105277238A (en) | 2015-11-16 | 2015-11-16 | One-piece differential pressure type flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105277238A true CN105277238A (en) | 2016-01-27 |
Family
ID=55146652
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510827213.6A Pending CN105277238A (en) | 2015-11-16 | 2015-11-16 | One-piece differential pressure type flowmeter |
| CN201610169145.3A Pending CN105865557A (en) | 2015-11-16 | 2016-03-14 | A super-high-viscosity gas-liquid two phase separation metering device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610169145.3A Pending CN105865557A (en) | 2015-11-16 | 2016-03-14 | A super-high-viscosity gas-liquid two phase separation metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN105277238A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798647A (en) * | 2017-05-02 | 2018-11-13 | 中国石油化工股份有限公司 | A kind of multi-function hole top of oil well gas-liquid metering device |
| CN109723429A (en) * | 2019-02-23 | 2019-05-07 | 江苏华尔威科技集团有限公司 | A kind of crude oil single well gas-liquid biphase flowmeter amount device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1461537A (en) * | 1973-06-07 | 1977-01-13 | Ellicott Machine Corp | Method and apparatus for determining solids delivered from moving slurry |
| US5602344A (en) * | 1994-09-01 | 1997-02-11 | Lew; Hyok S. | Inertia force flowmeter |
| RU2222784C2 (en) * | 1997-12-15 | 2004-01-27 | Токио Гэс Ко., Лтд. | Flowmeter |
| CN201730604U (en) * | 2010-03-31 | 2011-02-02 | 胜利油田高原石油装备有限责任公司 | Spiral passive gas-liquid separator |
| CN102759381A (en) * | 2012-07-06 | 2012-10-31 | 中国航空工业集团公司西安飞机设计研究所 | Low flow-velocity gas pressure difference type flow measuring device |
| CN203929148U (en) * | 2014-03-07 | 2014-11-05 | 卢玖庆 | Intelligence multi-phase flowmeter |
| CN104089665A (en) * | 2014-06-26 | 2014-10-08 | 卢玖庆 | Single-pipe three-phase flowmeter |
| CN104316673A (en) * | 2014-10-24 | 2015-01-28 | 卢玖庆 | Device for measuring water content of oil |
-
2015
- 2015-11-16 CN CN201510827213.6A patent/CN105277238A/en active Pending
-
2016
- 2016-03-14 CN CN201610169145.3A patent/CN105865557A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN105865557A (en) | 2016-08-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160127 |