CN2681092Y - Pressure indirectly taking device for differential pressure flowmeter - Google Patents
Pressure indirectly taking device for differential pressure flowmeter Download PDFInfo
- Publication number
- CN2681092Y CN2681092Y CN 200420032670 CN200420032670U CN2681092Y CN 2681092 Y CN2681092 Y CN 2681092Y CN 200420032670 CN200420032670 CN 200420032670 CN 200420032670 U CN200420032670 U CN 200420032670U CN 2681092 Y CN2681092 Y CN 2681092Y
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- Prior art keywords
- pressure
- differential pressure
- mount pad
- installation base
- flowmeter
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- Expired - Fee Related
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to a pressure indirectly taking device for differential pressure flowmeter metering fluid flow, comprising a front installation base and a back installation base arranged on a pipeline and positioned in front-and-back of the effusion-saving element, and a differential pressure transmitter. The utility model is characterized in that the pressure sensitive devices are respectively arranged in the front installation base and the back installation base; the pressure sensitive devices are connected with capillaries via connecting bases; the connecting bases are fixed in the front installation base and the back installation base; the capillaries are connected with the differential pressure transmitter; pressure transmission mediums are filled in the pressure sensitive devices and the capillaries. The utility model overcomes the insufficiencies in the existing differential pressure flowmeter that easy clogging and uneasy sealing, etc, and the utility model enlarge the application scope of the differential pressure flowmeter, having the advantages of reliable metering and safe use.
Description
Technical field
The utility model relates to measuring instrument, is specifically related to be used for the differential pressure type flowmeter pressure indirectly taking device of meter fluid flow.
Background technology
At present, what be used for meter fluid flow mostly is the differential pressure type flowmeter, its principle of work is that a throttling element is installed in the pipeline that fluid flows through, front and back at throttling element when fluid flows through produce a pressure reduction, this differential pressure value is directly proportional with flow, measure this differential pressure value by pressure, just can learn flow value.The ways of measure pressure of existing differential pressure type flowmeter is to adopt two pressure guiding pipes that the fluid before and after the throttling element in the pipeline is drawn, and links to each other with differential pressure transmitter then to measure differential pressure value.Though ways of measure pressure is easy, but there is very big deficiency: the one, when being used to measure the fluid of big fluid of viscosity or easily fouling or containing the sewage of impurity, pressure guiding pipe is blocked easily, in case stopping state takes place, differential pressure transmitter just can not detect the differential pressure value of fluid, causes flowmeter to lose its function; The 2nd, because pressure guiding pipe will be drawn the fluid in the pipeline, increased the possibility of escape of liquid, when being used to measure inflammable and explosive or poisonous fluid, dangerous increasing; The 3rd, when the fluid that is used to measure the needs insulation, during as steam, hot water, just must solve the heat-preserving anti-freezing problem of pressure guiding pipe, increased the complicacy of using; The 4th, when being used to measure the strong fluid of corrosivity, pressure guiding pipe must be made of expensive anti-corrosion material, increases production cost.Therefore, the range of application of differential pressure type flowmeter is restricted.
Summary of the invention
Goal of the invention of the present utility model provides a kind of differential pressure type flowmeter pressure indirectly taking device that is used for meter fluid flow, it has changed the structure of the direct pressure obtaning device of existing differential pressure type flowmeter, adopt indirect ways of measure pressure, can overcome the deficiency that existing differential pressure type flowmeter exists, be applicable to the metering of various fluids.
Differential pressure type flowmeter pressure indirectly taking device described in the utility model, comprise and be located at preceding mount pad on the pipeline and that be positioned at pipeline throttling element front and back and back mount pad, differential pressure transmitter, it is characterized in that in preceding mount pad and back mount pad, being respectively equipped with pressure-sensitive component, two pressure-sensitive components respectively are connected with a capillary by a Connection Block, two Connection Blocks are separately fixed in preceding mount pad, the back mount pad by nut, and two capillaries are connected with differential pressure transmitter; Be full of pressure transmission medium in pressure-sensitive component and the kapillary.This device is with indirect mode pressure, outside the fluid introduction pipe in will pipeline, at the fluid of measuring big fluid of viscosity or easily fouling or when containing the sewage of impurity, the blocked situation of pressure pipe can not take place, thereby improved the reliability of flowmeter; Pressure obtaning device; The junction of pressure-sensitive component and mount pad seals easily, thereby significantly reduces the possibility of escape of liquid, guarantees safe in utilization; Measuring the fluid that needs insulation, during as steam, hot water, just needn't solve the heat-preserving anti-freezing problem of pressure pipe, thereby easy to use; When measuring the strong fluid of corrosivity, need only make corrugated tube and mount pad with corrosion-resistant material, thereby reduce production cost.
Described differential pressure type flowmeter pressure indirectly taking device, its pressure-sensitive component is a corrugated tube, the pressure transmission medium in corrugated tube and the kapillary is silicone oil or fluorocarbon oil.In the corrugated tube of pressure obtaning device and kapillary, being full of silicone oil, can bearing 40Mpa with interior pressure, its temperature adaptation scope is-40-200 ℃; If in the corrugated tube of pressure obtaning device and kapillary, be full of fluorocarbon oil, its temperature adaptation scope is-40-320 ℃.As taking some cooling measures again, the temperature adaptation scope is-40-600 ℃.Like this, adaptation pressure limit of the present utility model is the same with existing differential pressure type flowmeter with temperature range, has many deficiencies but overcome existing differential pressure type flowmeter.
The utility model is compared with prior art, has overcome many deficiencies such as the easy obstruction of existing differential pressure type flowmeter existence, difficult sealing, has enlarged the applied range of differential pressure type flowmeter, has metering reliably, advantage safe in utilization.
Description of drawings
Fig. 1 is that the utility model is installed in synoptic diagram on the pipeline.
Fig. 2 is the synoptic diagram that pressure-sensitive component is connected with kapillary.
Embodiment
Referring to Fig. 1 and Fig. 2, preceding mount pad 3 and back mount pad 4 are welded to connect respectively on two pressure tappings of pipeline 1, preceding mount pad 3 and back mount pad 4 are positioned at the both sides, front and back of pipeline throttling element 2; With two corrugated tubes is pressure-sensitive component 6 each is connected with an end of a Connection Block 7, two capillaries 8 respectively are connected with the other end of a Connection Block 7, and are that pressure-sensitive component 6 and kapillary 8 are full of silicone oil 10 at corrugated tube; Then, with two nuts 9 is respectively that pressure-sensitive component 6 is fixed in preceding the mount pad 3 interior and back mount pads 4 with two corrugated tubes, to be pressure-sensitive component 6 contact with fluid in the pipeline 1 for two corrugated tubes, and an end of two capillaries 8 is connected with differential pressure transmitter 5 respectively and gets final product.
Claims (2)
1, differential pressure type flowmeter pressure indirectly taking device, comprise be located on the pipeline (1) and be positioned at preceding mount pad (3) and afterwards mount pad (4), differential pressure transmitter (5) before and after the pipeline throttling element (2), it is characterized in that in preceding mount pad (3) and back mount pad (4), being respectively equipped with pressure-sensitive component (6), two pressure-sensitive components (6) respectively are connected with a capillary (8) by a Connection Block (7), two Connection Blocks (7) are separately fixed in preceding mount pad (3), the back mount pad (4) by nut (9), and two capillaries (8) are connected with differential pressure transmitter (5); Be full of pressure transmission medium (10) in pressure-sensitive component (6) and the kapillary (8).
2, differential pressure type flowmeter pressure indirectly taking device according to claim 1 is characterized in that pressure-sensitive component (6) is a corrugated tube, and the pressure transmission medium in corrugated tube and the kapillary (8) is silicone oil or fluorocarbon oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420032670 CN2681092Y (en) | 2004-01-21 | 2004-01-21 | Pressure indirectly taking device for differential pressure flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420032670 CN2681092Y (en) | 2004-01-21 | 2004-01-21 | Pressure indirectly taking device for differential pressure flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2681092Y true CN2681092Y (en) | 2005-02-23 |
Family
ID=34607333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420032670 Expired - Fee Related CN2681092Y (en) | 2004-01-21 | 2004-01-21 | Pressure indirectly taking device for differential pressure flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2681092Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215280A (en) * | 2014-10-08 | 2014-12-17 | 王可崇 | Strain target flowmeter capable of restraining temperature drift |
| 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 |
| CN114184241A (en) * | 2020-09-14 | 2022-03-15 | 中核核电运行管理有限公司 | Method for improving measurement stability of differential pressure flow of bubble-containing liquid of pressurized water reactor |
-
2004
- 2004-01-21 CN CN 200420032670 patent/CN2681092Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215280A (en) * | 2014-10-08 | 2014-12-17 | 王可崇 | Strain target flowmeter capable of restraining temperature drift |
| 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 |
| CN114184241A (en) * | 2020-09-14 | 2022-03-15 | 中核核电运行管理有限公司 | Method for improving measurement stability of differential pressure flow of bubble-containing liquid of pressurized water reactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |