CN104215281A - Pressure differential meter - Google Patents
Pressure differential meter Download PDFInfo
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- CN104215281A CN104215281A CN201410428576.8A CN201410428576A CN104215281A CN 104215281 A CN104215281 A CN 104215281A CN 201410428576 A CN201410428576 A CN 201410428576A CN 104215281 A CN104215281 A CN 104215281A
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- protection box
- sensor protection
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- differential pressure
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Abstract
The invention discloses a pressure differential meter which comprises a junction box, a sensor protection box and a flow regulator. The sensor protection box is arranged on the lower surface of the junction box; the sensor protection box is connected with the flow regulator; a differential pressure sensor and a pressure sensor are arranged in the sensor protection box; both sides of the sensor protection box are respectively provided with exhaust valves; the bottom of the sensor protection box is provided with a positive pressure inlet and a negative pressure inlet; the positive pressure inlet and the negative pressure inlet are respectively connected with the flow regulator. The pressure differential meter has a simple structure and is convenient to operate; measurement accuracy is improved; moreover, working loss is low and the service life is prolonged.
Description
Technical field
The present invention relates to flow control technique field, be specially a kind of differential pressure flowmeter.
Technical background
Extensive especially, the time-honored a kind of seriation flowmeter of differential pressure flowmeter range of application, in the flow measurement of closed conduct, various object has application.Differential pressure flowmeter is that applicating history is long, and practical experience is abundant ripe, and standard criterion is perfect, the class flowmeter that description is complete, and before the fifties in 10th century, it may be unique natural gas flowmeter.It has many weak points: as measuring accuracy, and in-site installation conditional request is high, and crushing is large, and rangeability is narrow etc.; For above-mentioned deficiency, in recent years domestic production factory releases a series of Improving ways, as integral type differential pressure flowmeter, definite value throttling element, replaceable orifice throttle device, employing calibrating nozzle etc., add two ingredients of differential pressure flowmeter after the eighties again: differential pressure transmitter and Flow Measurement Display Meter have outstanding progress, estimate that this type of flowmeter will occupy consequence from now on.China carries out the Comparision evening of flow measurement technology in modern age, and early stage required flow instrument is all from external import.
Flow measurement is the science of research material quantitative change, and law of mutual change of quality and quantity is the basic law of things contact development, and therefore its measuring object has been not limited to traditional pipeline liquid, and there is the problem of flow measurement in all places need grasping quantitative change.Flow and pressure, temperature are listed as three large detected parameters.For certain fluid, as long as know that these three parameters just can calculate its energy had, this three parameters must be detected in the measurement of energy conversion.Energy conversion is the basis of all production runes and scientific experiment, and therefore flow is applied with pressure, the same the obtaining of thermometric instrument the most widely.
Summary of the invention
The object of this invention is to provide a kind of structure simple, measure accurate differential pressure flowmeter.
The present invention is achieved through the following technical solutions:
A kind of differential pressure flowmeter, comprises terminal box, sensor protection box and flow controller, is provided with sensor protection box below described terminal box, and described sensor protection box connects flow controller; In described sensor protection box, differential pressure pick-up and pressure transducer are installed; described sensor protection box both sides are respectively equipped with vent valve; be provided with malleation entrance and negative pressure entrance bottom described sensor protection box, described malleation entrance is connected flow controller respectively with negative pressure entrance.
Further, described vent valve is positive pressure ventilation valve is negative pressure exhaust valve.
Further, temperature sensor entrance is provided with bottom described sensor protection box.
Further, described terminal box is provided with display.
The invention has the beneficial effects as follows: structure of the present invention is simple, easy to operate, improves measuring accuracy, and working loss is little, improves serviceable life.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described further.
Fig. 1 is the structural representation of a kind of differential pressure flowmeter of the present invention.
Wherein: 1, terminal box, 2, sensor protection box, 3, flow controller, 4, differential pressure pick-up, 5, pressure transducer, 6, positive pressure ventilation valve, 7, negative pressure exhaust valve, 8, malleation entrance, 9, negative pressure entrance, 10, temperature sensor entrance, 11, display.
Embodiment
A differential pressure flowmeter as shown in Figure 1, comprises terminal box 1, sensor protection box 2 and flow controller 3, and terminal box 1 is provided with sensor protection box 2 below, and sensor protection box 2 connects flow controller; Differential pressure pick-up 4 and pressure transducer 5 are installed in sensor protection box 2; sensor protection box 2 both sides are respectively equipped with vent valve; malleation entrance 8 and negative pressure entrance 9 is provided with bottom sensor protection box 2; malleation entrance 8 is connected flow controller 3 respectively with negative pressure entrance 9; vent valve is positive pressure ventilation valve 6 is negative pressure exhaust valve 7; bottom sensor protection box, 2 are provided with temperature sensor 10 entrance, and terminal box 1 is provided with display 11.
Claims (4)
1. a differential pressure flowmeter, comprises terminal box, sensor protection box and flow controller, it is characterized in that: be provided with sensor protection box below described terminal box, and described sensor protection box connects flow controller; In described sensor protection box, differential pressure pick-up and pressure transducer are installed; described sensor protection box both sides are respectively equipped with vent valve; be provided with malleation entrance and negative pressure entrance bottom described sensor protection box, described malleation entrance is connected flow controller respectively with negative pressure entrance.
2. a kind of differential pressure flowmeter according to claim 1, is characterized in that: described vent valve is positive pressure ventilation valve is negative pressure exhaust valve.
3. a kind of differential pressure flowmeter according to claim 1, is characterized in that: be provided with temperature sensor entrance bottom described sensor protection box.
4. a kind of differential pressure flowmeter according to claim 1, is characterized in that: described terminal box is provided with display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410428576.8A CN104215281A (en) | 2014-08-28 | 2014-08-28 | Pressure differential meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410428576.8A CN104215281A (en) | 2014-08-28 | 2014-08-28 | Pressure differential meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104215281A true CN104215281A (en) | 2014-12-17 |
Family
ID=52097013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410428576.8A Pending CN104215281A (en) | 2014-08-28 | 2014-08-28 | Pressure differential meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104215281A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578846A (en) * | 2018-06-11 | 2019-12-17 | 上海孚凌自动化控制系统有限公司 | Gas distributor |
| CN110702574A (en) * | 2019-09-30 | 2020-01-17 | 鞍钢股份有限公司 | Iron ore sintering cup simulation test system and method capable of detecting air permeability in layered mode |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2591580Y (en) * | 2002-12-30 | 2003-12-10 | 重庆工业自动化仪表研究所 | Integrated intelligent differential pressure type flowmeter |
| CN2919198Y (en) * | 2005-12-07 | 2007-07-04 | 张川潮 | V shaped wimble flowmeter |
| CN2938037Y (en) * | 2006-08-10 | 2007-08-22 | 张川潮 | Multi-parameter intelligent transmitter |
| US20120053860A1 (en) * | 2009-05-06 | 2012-03-01 | Norgren Limited | Differential pressure sensor and method |
| CN202836639U (en) * | 2012-09-07 | 2013-03-27 | 浙江东能仪表有限公司 | Heat-type v-cone differential pressure flow duplex measurement device |
-
2014
- 2014-08-28 CN CN201410428576.8A patent/CN104215281A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2591580Y (en) * | 2002-12-30 | 2003-12-10 | 重庆工业自动化仪表研究所 | Integrated intelligent differential pressure type flowmeter |
| CN2919198Y (en) * | 2005-12-07 | 2007-07-04 | 张川潮 | V shaped wimble flowmeter |
| CN2938037Y (en) * | 2006-08-10 | 2007-08-22 | 张川潮 | Multi-parameter intelligent transmitter |
| US20120053860A1 (en) * | 2009-05-06 | 2012-03-01 | Norgren Limited | Differential pressure sensor and method |
| CN202836639U (en) * | 2012-09-07 | 2013-03-27 | 浙江东能仪表有限公司 | Heat-type v-cone differential pressure flow duplex measurement device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578846A (en) * | 2018-06-11 | 2019-12-17 | 上海孚凌自动化控制系统有限公司 | Gas distributor |
| CN110702574A (en) * | 2019-09-30 | 2020-01-17 | 鞍钢股份有限公司 | Iron ore sintering cup simulation test system and method capable of detecting air permeability in layered mode |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141217 |
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| WD01 | Invention patent application deemed withdrawn after publication |