CN202182740U - Porous steady-flow differential pressure type flow meter - Google Patents
Porous steady-flow differential pressure type flow meter Download PDFInfo
- Publication number
- CN202182740U CN202182740U CN201120277374XU CN201120277374U CN202182740U CN 202182740 U CN202182740 U CN 202182740U CN 201120277374X U CN201120277374X U CN 201120277374XU CN 201120277374 U CN201120277374 U CN 201120277374U CN 202182740 U CN202182740 U CN 202182740U
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- differential pressure
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- flow
- throttling
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Abstract
A porous steady-flow differential pressure type flow meter relates to a detecting instrument for the flow of fluid. The flow meter is provided with a measuring pipe, wherein a connecting flange is arranged at either end of the measuring pipe; a throttling body is arranged inside the measuring pipe; a positive pressure tapping pipe and a negative pressure tapping pipe are respectively arranged on the pipe wall of the measuring pipe at the front side and the back side of the throttling body and are connected with a differential pressure transmitter; and the throttling body is provided with a throttling plate. In the porous steady-flow differential pressure type flow meter, more than two fluid through holes are uniformly arranged on the throttling plate, so that the fluid stably and regularly flows when passing through the fluid through holes; a pressure signal measured by the differential pressure transmitter is stable and high in accuracy; a straight pipe needed for commutation is short; the permanent pressure loss is little; the energy consumption is low; and the using cost is low.
Description
Technical field
The utility model relates to the flow detection instrument of fluid, says it is a kind of porous current stabilization differential pressure flowmeter in detail.
Background technology
We know that the structure of existing differential pressure flowmeter is to be provided with measuring tube; The measuring tube two ends are provided with joint flange; Measuring tube inside is provided with the orifice-plate type throttling bodies, is respectively equipped with positive pressure pipe and negative pressure pipe on the measuring tube tube wall of the forward and backward both sides of orifice-plate type throttling bodies, and positive pressure pipe is connected differential pressure transmitter with negative pressure pipe; The orifice-plate type throttling bodies is to be provided with choke block, and the choke block central part is provided with fluid through-hole.This differential pressure flowmeter is owing to only be provided with fluid through-hole at the choke block central part; It is irregular to exist fluid to flow, and the pressure signal that differential pressure transmitter records is unstable, precision is low, requires the straight tube segment length of rectification; Impurity in the fluid deposits in the choke block front side easily; Measuring error is big, and the permanent pressure loss is big, energy consumption is high, the problem that use cost is high.
Summary of the invention
The purpose of the utility model is to solve the deficiency of above-mentioned prior art; It is steady, regular to flow when a kind of fluid is provided through throttling element; The pressure signal that differential pressure transmitter records is stable, precision is high; Require the straight length of rectification short, the permanent pressure loss is little, energy consumption is low, the porous current stabilization differential pressure flowmeter that use cost is low.
The utility model can be realized through following technological means:
A kind of porous current stabilization differential pressure flowmeter; Be provided with measuring tube, the measuring tube two ends are respectively equipped with joint flange, and measuring tube inside is provided with throttling bodies; Be respectively equipped with positive pressure pipe and negative pressure pipe on the measuring tube tube wall of the forward and backward both sides of throttling bodies; Positive pressure pipe is connected differential pressure transmitter with negative pressure pipe, it is characterized in that throttling bodies is to be provided with choke block, evenly is provided with plural fluid through-hole on the choke block.
The edge of fluid through-hole is level and smooth circular-arc in the utility model.
The beneficial effect of the utility model is; Because throttling bodies is to be provided with choke block, evenly is provided with several fluid through-holes on the choke block, it is steady, regular to flow during fluid process fluid through-hole; The pressure signal that differential pressure transmitter records is stable, precision is high; Require the straight length of rectification short, the permanent pressure loss is little, energy consumption is low, and use cost is low.Because the edge of fluid through-hole is level and smooth circular-arc, fluid through-hole is difficult for by fluid erosion, and efflux coefficient is stable, precision is high.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
Fig. 2 is the right view of Fig. 1.
Embodiment
A kind of porous current stabilization differential pressure flowmeter as shown in the figure is provided with measuring tube 5, and measuring tube 5 two ends are respectively equipped with joint flange 1,7; Measuring tube inside is provided with throttling bodies, is respectively equipped with positive pressure pipe 2 and negative pressure pipe 6 on the measuring tube tube wall of the forward and backward both sides of throttling bodies, and positive pressure pipe 2 is connected differential pressure transmitter with negative pressure pipe 6; It is characterized in that throttling bodies is to be provided with choke block 4, evenly be provided with plural fluid through-hole 3 on the choke block 4, it is steady, regular to flow during fluid process fluid through-hole 3; The pressure signal that differential pressure transmitter records is stable, precision is high; Require the straight tube of rectification short, the permanent pressure loss is little, energy consumption is low, and use cost is low.The edge of fluid through-hole 3 is level and smooth circular-arc in the utility model, and fluid through-hole is difficult for by fluid erosion, and efflux coefficient is stable, precision is high.
Claims (2)
1. porous current stabilization differential pressure flowmeter; Be provided with measuring tube, the measuring tube two ends are respectively equipped with joint flange, and measuring tube inside is provided with throttling bodies; Be respectively equipped with positive pressure pipe and negative pressure pipe on the measuring tube tube wall of the forward and backward both sides of throttling bodies; Positive pressure pipe is connected differential pressure transmitter with negative pressure pipe, it is characterized in that throttling bodies is to be provided with choke block, evenly is provided with plural fluid through-hole on the choke block.
2. porous current stabilization differential pressure flowmeter according to claim 1, the edge that it is characterized in that described fluid through-hole is level and smooth circular-arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120277374XU CN202182740U (en) | 2011-08-02 | 2011-08-02 | Porous steady-flow differential pressure type flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120277374XU CN202182740U (en) | 2011-08-02 | 2011-08-02 | Porous steady-flow differential pressure type flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202182740U true CN202182740U (en) | 2012-04-04 |
Family
ID=46175773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120277374XU Expired - Fee Related CN202182740U (en) | 2011-08-02 | 2011-08-02 | Porous steady-flow differential pressure type flow meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202182740U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344286A (en) * | 2013-06-28 | 2013-10-09 | 上海华强浮罗仪表有限公司 | Double-flange balance flow meter |
| CN103977919A (en) * | 2014-05-30 | 2014-08-13 | 许玉方 | Multi-hole nozzle |
| CN105258751A (en) * | 2015-09-30 | 2016-01-20 | 浙江迪元仪表有限公司 | Metal rotor flowmeter with rectification function |
| CN105526980A (en) * | 2016-01-15 | 2016-04-27 | 江苏华海测控技术有限公司 | Multi-nozzle balance flowmeter |
| CN106422016A (en) * | 2016-11-30 | 2017-02-22 | 四川大学 | Mouse non-invasive trachea intubation instrument |
| CN106546375A (en) * | 2015-09-17 | 2017-03-29 | 中国石化扬子石油化工有限公司 | A kind of tube furnace boiler tube differential pressure measurement device and the method that tube furnace boiler tube pressure reduction is measured using which |
| CN106679742A (en) * | 2016-11-14 | 2017-05-17 | 浙江浙能台州第二发电有限责任公司 | Inlet flue gas flow measuring device for draft fan |
| CN108362907A (en) * | 2018-05-04 | 2018-08-03 | 刘冠宏 | A kind of fluid velocity measuring device |
| CN111024166A (en) * | 2020-01-20 | 2020-04-17 | 艾加流体控制(上海)有限公司 | Three-hole balance flowmeter and application |
| CN111811977A (en) * | 2020-06-18 | 2020-10-23 | 西安三智科技有限公司 | Runoff sediment content and flow measurement device and measurement method |
| CN112212926A (en) * | 2020-08-07 | 2021-01-12 | 北京协同创新研究院 | Flow measurement method based on porous throttling and MEMS pressure sensor |
-
2011
- 2011-08-02 CN CN201120277374XU patent/CN202182740U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344286A (en) * | 2013-06-28 | 2013-10-09 | 上海华强浮罗仪表有限公司 | Double-flange balance flow meter |
| CN103977919A (en) * | 2014-05-30 | 2014-08-13 | 许玉方 | Multi-hole nozzle |
| CN106546375A (en) * | 2015-09-17 | 2017-03-29 | 中国石化扬子石油化工有限公司 | A kind of tube furnace boiler tube differential pressure measurement device and the method that tube furnace boiler tube pressure reduction is measured using which |
| CN105258751A (en) * | 2015-09-30 | 2016-01-20 | 浙江迪元仪表有限公司 | Metal rotor flowmeter with rectification function |
| CN105526980A (en) * | 2016-01-15 | 2016-04-27 | 江苏华海测控技术有限公司 | Multi-nozzle balance flowmeter |
| CN106679742A (en) * | 2016-11-14 | 2017-05-17 | 浙江浙能台州第二发电有限责任公司 | Inlet flue gas flow measuring device for draft fan |
| CN106422016A (en) * | 2016-11-30 | 2017-02-22 | 四川大学 | Mouse non-invasive trachea intubation instrument |
| CN108362907A (en) * | 2018-05-04 | 2018-08-03 | 刘冠宏 | A kind of fluid velocity measuring device |
| CN108362907B (en) * | 2018-05-04 | 2024-03-22 | 刘冠宏 | Fluid velocity measuring device |
| CN111024166A (en) * | 2020-01-20 | 2020-04-17 | 艾加流体控制(上海)有限公司 | Three-hole balance flowmeter and application |
| CN111811977A (en) * | 2020-06-18 | 2020-10-23 | 西安三智科技有限公司 | Runoff sediment content and flow measurement device and measurement method |
| CN112212926A (en) * | 2020-08-07 | 2021-01-12 | 北京协同创新研究院 | Flow measurement method based on porous throttling and MEMS pressure sensor |
| CN112212926B (en) * | 2020-08-07 | 2022-04-08 | 北京协同创新研究院 | Flow measurement method based on porous throttling and MEMS pressure sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120404 Termination date: 20160802 |