CN102095453B - 锥型孔板流量计 - Google Patents

锥型孔板流量计 Download PDF

Info

Publication number
CN102095453B
CN102095453B CN 201110029042 CN201110029042A CN102095453B CN 102095453 B CN102095453 B CN 102095453B CN 201110029042 CN201110029042 CN 201110029042 CN 201110029042 A CN201110029042 A CN 201110029042A CN 102095453 B CN102095453 B CN 102095453B
Authority
CN
China
Prior art keywords
orifice plate
conical
pressure transmitter
flow meter
conical orifice
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
Application number
CN 201110029042
Other languages
English (en)
Other versions
CN102095453A (zh
Inventor
卢玖庆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
XINJIANG ZHONGYUAN TIANNENG OIL & GAS TECHNOLOGY CO., LTD.
Original Assignee
卢玖庆
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 卢玖庆 filed Critical 卢玖庆
Priority to CN 201110029042 priority Critical patent/CN102095453B/zh
Publication of CN102095453A publication Critical patent/CN102095453A/zh
Application granted granted Critical
Publication of CN102095453B publication Critical patent/CN102095453B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Measuring Volume Flow (AREA)

Abstract

本发明锥型孔板流量计属于流量的测量技术领域,解决了孔板前极易积污和出现液相累积的问题,它包括锥型孔板、压力变送器、差压变送器、温度传感器和流量计算机,在锥型孔板前端设置有压力变送器,在锥型孔板上方设置有差压变送器,在锥型孔板后端设置有温度传感器,压力变送器、差压变送器和温度传感器通过数据线与流量计算机连接,所述的锥型孔板为孔板或槽型孔板,锥型孔板的前端和后端或前端为倒锥形敞口,倒锥形敞口底边与锥型孔板出入口或入口边缘相吻合,倒锥形敞口的角度α或β为30°~160°或者40°~120°,体积小,重量轻,安全可靠,测量范围宽,测量精度高,气体精度可达±1~2%,液体精度可达±5%,可广泛用于天然气井的实时测量。

Description

锥型孔板流量计
一、技术领域本发明属于流量的测量技术领域,特别是涉及一种通过测量压力或压差的孔板流量计。
二、背景技术近年来随着海陆天然气的勘探开发,含液天然气的准确计量为生产监控、油藏管理提供了可靠的原始资料,但现有多相流量计主要针对含液率为10%~90%的油气水三相流进行测量,不能直接用于凝析天然气计量,用单相气体流量计测量凝析天然气时,又会由于液相的存在产生很大的测量误差。当流体流过孔板时会形成流体的局部收缩,在孔板下游形成幅度较大的漩涡,它会使孔板的量程比缩小,差压信号中的噪声增大,流量计的测量精度降低,压损增大。另外,孔板的这种中心突然收缩的节流方式还会带来其它不良影响:要求的上游直管过长(一般20D~50D),孔板前极易积污,出现液相累积,产生液相断续通过节流件的现象,导致很大的附加阻力和差压波动,孔板人口边缘极易磨损从而丧失精度,流出系数不稳定,线性差。
三、发明内容本发明的目的是提供一种锥型孔板流量计,解决了孔板前极易积污和出现液相累积的问题,它包括锥型孔板、压力变送器、差压变送器、温度传感器和流量计算机,在锥型孔板前端设置有压力变送器,在锥型孔板上方设置有差压变送器,在锥型孔板后端设置有温度传感器,压力变送器、差压变送器和温度传感器通过数据线与流量计算机连接,所述的锥型孔板为孔板或槽型孔板,锥型孔板的前端和后端或前端为倒锥形敞口,倒锥形敞口底边与锥型孔板出入口或入口边缘相吻合,倒锥形敞口的角度α或β为30°~160°或者40°~120°,体积小,重量轻,安全可靠,测量范围宽,测量精度高,气体精度可达±1~2%,液体精度可达±5%,可广泛用于天然气井的实时测量。
四、附图说明图1是本发明锥型孔板流量计结构示意图;
图2是本发明的双倒锥形敞口的锥孔板剖视图;
图3是本发明的单倒锥形敞口的锥孔板剖视图;
图4是本发明的槽式双倒锥形敞口的锥孔板剖视图;
图5是本发明的槽式单倒锥形敞口的锥孔板剖视图;
图6是本发明的槽式孔板结构示意图。
五、具体实施方式下面结合图1、图2、图3、图4、图5和图6对本发明锥型孔板流量计做进一步的说明,它包括锥型孔板2、压力变送器1、差压变送器3、温度传感器4和流量计算机5,在锥型孔板2前端设置有压力变送器1,在锥型孔板2上方设置有差压变送器3,在锥型孔板2后端设置有温度传感器4,压力变送器1、差压变送器3和温度传感器4通过数据线与流量计算机5连接,锥型孔板2为孔板或槽型孔板,锥型孔板2的前端和后端或前端为倒锥形敞口,倒锥形敞口底边与锥型孔板2出入口或入口边缘相吻合,倒锥形敞口的角度α或β为30°~160°或者40°~120°,该结构具有自清洁功能,确保锥型孔板2上、下游不会出现液相累积以及液相断续通过锥型孔板2导致很大的附加阻力和差压波动的现象,从而影响到测量精度,而且锥型孔板2厚度的增加能有效地避免锥型孔板2挠曲。

Claims (4)

1.锥型孔板流量计,包括锥型孔板、压力变送器、差压变送器、温度传感器和流量计算机,在锥型孔板前端设置有压力变送器,在锥型孔板上方设置有差压变送器,在锥型孔板后端设置有温度传感器,压力变送器、差压变送器和温度传感器通过数据线与流量计算机连接,其特征是所述的锥型孔板的前端和后端或前端为倒锥形敞口,倒锥形敞口底边与锥型孔板出入口或入口边缘相吻合。
2.根据权利要求1所述的锥型孔板流量计,其特征是所述的锥型孔板的倒锥形敞口的角度α或β为30°~160°。
3.根据权利要求2所述的锥型孔板流量计,其特征是所述的锥型孔板的倒锥形敞口的角度α或β为40°~120°。
4.根据权利要求1至3任一权利要求所述的锥型孔板流量计,其特征是所述的锥型孔板为孔板或槽型孔板。
CN 201110029042 2010-06-24 2011-01-13 锥型孔板流量计 Active CN102095453B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201110029042 CN102095453B (zh) 2010-06-24 2011-01-13 锥型孔板流量计

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201010208042.6 2010-06-24
CN2010102080426A CN101893461A (zh) 2010-06-24 2010-06-24 锥型孔板流量计
CN 201110029042 CN102095453B (zh) 2010-06-24 2011-01-13 锥型孔板流量计

Publications (2)

Publication Number Publication Date
CN102095453A CN102095453A (zh) 2011-06-15
CN102095453B true CN102095453B (zh) 2013-03-27

Family

ID=43102722

Family Applications (2)

Application Number Title Priority Date Filing Date
CN2010102080426A Pending CN101893461A (zh) 2010-06-24 2010-06-24 锥型孔板流量计
CN 201110029042 Active CN102095453B (zh) 2010-06-24 2011-01-13 锥型孔板流量计

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN2010102080426A Pending CN101893461A (zh) 2010-06-24 2010-06-24 锥型孔板流量计

Country Status (1)

Country Link
CN (2) CN101893461A (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102269606A (zh) * 2011-06-29 2011-12-07 中广核工程有限公司 核电站放射性气体排出流流量监测方法
CN102735292B (zh) * 2012-06-18 2014-10-08 北京遥测技术研究所 一种差压式流量测量装置
CN102735293A (zh) * 2012-07-05 2012-10-17 中国天辰工程有限公司 文丘里形多孔孔板流量计
CN105091959B (zh) * 2015-08-11 2018-06-15 辽宁聚焦科技有限公司 一种聚焦孔板流量计及其使用方法
CN105547381A (zh) * 2015-12-25 2016-05-04 潍柴动力股份有限公司 一种发动机进气流量的测量装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1076273A (zh) * 1992-03-11 1993-09-15 王颖 蒸汽计量仪

Also Published As

Publication number Publication date
CN101893461A (zh) 2010-11-24
CN102095453A (zh) 2011-06-15

Similar Documents

Publication Publication Date Title
CN102095453B (zh) 锥型孔板流量计
CN201819708U (zh) 整流翼均速管流量传感器
US4154100A (en) Method and apparatus for stabilizing the flow coefficient for pitot-type flowmeters with a downstream-facing port
US8555729B2 (en) Method of measuring flow properties of a multiphase fluid
CN103201599B (zh) 超声波流量计量装置
EP2764330B1 (en) Pulsating flow meter
EP3494278B1 (en) Monitoring hydrocarbon fluid flow
CN107843297B (zh) 基于v锥的低含气率气液两相流液相流量在线测量装置及方法
US9016138B2 (en) Flanged reducer vortex flowmeter
EP2122308A1 (en) Multiphase flow measurement using a swirl inducer followed by a flow constriction
CN105675070A (zh) 异型文丘里流量计和用其测量多相流中气液相流量的方法
CN102246009A (zh) 湿气流测量和气体性质测量的方法和装置
EP0277121A1 (en) FLOWMETER FOR FLUID.
US7533579B2 (en) Reduced bore vortex flowmeter having a stepped intake
CN107976222A (zh) 一种皮托管一体化气体质量流量测量方法
CN202158878U (zh) 用于燃油终端结算的超声波流量测量的装置
CN205002806U (zh) 双法兰取压平衡式流量计
CN212058917U (zh) 一种差压型电子流量开关
CN207423278U (zh) 基于卡曼涡街的流量测量装置
CN206161073U (zh) 一种大口径超声波流量计的声程扩展结构
CN208984149U (zh) 一种皮托巴流量计
Waluś Mathematical modelling of an ultrasonic flowmeter primary device
CN206670698U (zh) 一种管道毕托管分流式量水计
CN205561933U (zh) 一种漩涡流量计
CN104280076A (zh) 一种高精度的大口径涡街流量计

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20110615

Assignee: Urumqi Chang Hui Automation Meter Co., Ltd.

Assignor: Lu Jiuqing

Contract record no.: 2013650000008

Denomination of invention: Conical orifice plate flow meter

Granted publication date: 20130327

License type: Exclusive License

Record date: 20130510

LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model
C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20151105

Address after: 830026 Xinjiang Zhongyuan oil and gas Polytron Technologies Inc, No. 22, Shenyang street, Bei Bei District, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region, China

Patentee after: XINJIANG ZHONGYUAN TIANNENG OIL & GAS TECHNOLOGY CO., LTD.

Address before: 830026 Urumqi the Xinjiang Uygur Autonomous Region Chang Hui Automation Instrument Co., Ltd. 22 Shenyang street, Bei Bei District, Urumqi economic and Technological Development Zone

Patentee before: Lu Jiuqing