CN110631648A - A Sensor Combined Bitobah Flowmeter - Google Patents

A Sensor Combined Bitobah Flowmeter Download PDF

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Publication number
CN110631648A
CN110631648A CN201911110219.6A CN201911110219A CN110631648A CN 110631648 A CN110631648 A CN 110631648A CN 201911110219 A CN201911110219 A CN 201911110219A CN 110631648 A CN110631648 A CN 110631648A
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pressure
flow
sensor
bitobar
differential pressure
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王忠辉
唐力壮
王超
蔡潇
胡瑶
齐丽萍
孙丽民
张旭
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Liaoning pitotbar Polytron Technologies Inc.
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Right Shanghai Environmental Protection Science And Technology Ltd Co
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)

Abstract

本发明公开了一种传感器组合式毕托巴流量计，包括多个毕托巴流量传感器、多个差压变送器和流量积算仪，毕托巴流量传感器具有导压管和相连的取压头，每个毕托巴流量传感器的信号输出端与相对应的差压变送器的信号输入端相连，多个差压变送器的信号输出端分别与所述流量积算仪相对应的信号输入端相连，还包括有传感器安装座，该传感器安装座具有固定相连的上、下连接法兰，下连接法兰的底部连有安装套筒，每个毕托巴流量传感器的导压管密封穿过上连接法兰、且与导压管相连的取压头位于安装套筒的下方，并且这些毕托巴流量传感器取压头下部的全压孔沿竖直方向渐次排列。应用本发明测量管道内的流体流量时可以获得相对准确测量结果。

The invention discloses a sensor-combined bitobar flowmeter, which comprises a plurality of bitobar flow sensors, a plurality of differential pressure transmitters and a flow totalizer. Pressure head, the signal output end of each Bitobar flow sensor is connected to the signal input end of the corresponding differential pressure transmitter, and the signal output ends of multiple differential pressure transmitters correspond to the flow totalizer respectively Connected to the signal input end of the signal, and also includes a sensor mounting seat, the sensor mounting seat has a fixed upper and lower connecting flanges, the bottom of the lower connecting flange is connected with a mounting sleeve, and the guide pressure of each Bitoba flow sensor The pipe seal passes through the upper connecting flange and the pressure taking head connected with the pressure guiding pipe is located below the installation sleeve, and the full pressure holes at the lower part of the pressure taking head of these Bitoba flow sensors are arranged in a vertical direction. Relatively accurate measurement results can be obtained when the invention is applied to measure the fluid flow in the pipeline.

Description

一种传感器组合式毕托巴流量计A Sensor Combined Bitobah Flowmeter

技术领域technical field

本发明涉及一种毕托巴流量计，具体地说是涉及一种传感器组合式毕托巴流量计。The invention relates to a bitobar flowmeter, in particular to a sensor combined type bitobar flowmeter.

背景技术Background technique

目前，测量管道内流体流量的流量测量装置种类较多，由于毕托巴流量计结构简单、安装方便及测量精度相对较高被广泛应用于测量管道内流体的流量。毕托巴流量计主要由毕托巴传感器、差压变送器及流量积算仪组成，使用时，把毕托巴流量传感器从管道的侧壁垂直地插入管道内，毕托巴流量传感器取压头的全压孔对着流体的来流方向，静压孔对着流体的去流方向，流体在管道内流动时，在毕托巴流量传感器导压管上端的全压接口和静压接口分别输出管道内流动着流体的全压和静压信号，差压变送器将毕托巴传感器传送的管道内流体的全压和静压信号转变为4~20mA的标准电流信号再传送给流量积算仪，依据管道内流动着流体的全压和静压，按流体力学原理最终可以在流量积算仪内计算出管道内流体的流量。At present, there are many types of flow measuring devices for measuring the flow of fluid in pipelines. Bitoba flowmeters are widely used to measure the flow of fluid in pipelines due to their simple structure, convenient installation and relatively high measurement accuracy. The Bitobar flowmeter is mainly composed of a Bitobar sensor, a differential pressure transmitter and a flow totalizer. When in use, the Bitobar flow sensor is inserted into the pipeline vertically from the side wall of the pipeline, and the Bitobar flow sensor is taken out. The total pressure hole of the pressure head is facing the direction of fluid flow, and the static pressure hole is facing the direction of fluid flow. Output the total pressure and static pressure signals of the fluid flowing in the pipeline respectively, and the differential pressure transmitter converts the total pressure and static pressure signals of the fluid in the pipeline transmitted by the Bitoba sensor into a standard current signal of 4~20mA and then transmits it to the flow The totalizer, according to the total pressure and static pressure of the fluid flowing in the pipeline, can finally calculate the flow of the fluid in the pipeline in the flow totalizer according to the principle of fluid mechanics.

上述现有技术中的毕托巴流量计在测量管道内的流体流量时，毕托巴流量传感器的测量精度决定着最终管道内流体流量的测量精度，如果导压管输送的全压和静压信号误差较大，就会导致最终的测量结果误差较大。造成全压或静压信号不准确的原因较多，比如导压管相连的取压头的全压或静压孔出现孔内壁结垢、灰尘积累过多以及结晶时，都会导致输出的全压或静信号变化较大，致使测量结果误差较大。When the Bitobar flowmeter in the above prior art measures the fluid flow in the pipeline, the measurement accuracy of the Bitobar flow sensor determines the measurement accuracy of the final fluid flow in the pipeline. If the total pressure and static pressure delivered by the pressure guiding tube Larger signal errors will lead to larger errors in the final measurement results. There are many reasons for the inaccuracy of the total pressure or static pressure signal, such as the total pressure of the pressure head connected to the pressure guide tube or the scaling of the inner wall of the static pressure hole, excessive accumulation of dust, and crystallization will cause the output of the total pressure Or the static signal changes greatly, resulting in a large error in the measurement result.

发明内容Contents of the invention

本发明要解决的技术问题是提供一种在测量管道内流体流量时可以获得相对准确测量结果的传感器组合式毕托巴流量计。The technical problem to be solved by the present invention is to provide a sensor-combined bitobar flowmeter that can obtain relatively accurate measurement results when measuring the fluid flow in a pipeline.

为解决上述技术问题，本发明一种传感器组合式毕托巴流量计，包括毕托巴流量传感器、差压变送器和流量积算仪，毕托巴流量传感器具有导压管和相连的取压头，取压头内有轴线相互平行且位于取压头内相对两侧的全压通道和静压通道，取压头下部的相对两侧具有分别与全压通道和静压通道相连通的全压孔和静压孔，所述毕托巴流量传感器的信号输出端与差压变送器的信号输入端相连，差压变送器的信号输出端与流量积算仪的信号输入端相连，还包括有传感器安装座，该传感器安装座具有固定相连的上、下连接法兰，下连接法兰的底部连有安装套筒，所述的导压管密封穿过上连接法兰、且与导压管相连的取压头位于安装套筒的下方，所述毕托巴流量传感器的数量为多个，相应地所述差压变送器的数量也为多个，多个毕托巴流量传感器的导压管均密封穿过上连接法兰、且与每个毕托巴流量传感器导压管相连的取压头均位于安装套筒的下方，并且这些毕托巴流量传感器取压头下部的全压孔沿竖直方向渐次排列；每个毕托巴流量传感器的信号输出端均与相对应的差压变送器的信号输入端相连，多个差压变送器的信号输出端分别与所述流量积算仪相对应的信号输入端相连。In order to solve the above-mentioned technical problems, a kind of sensor combination type Bitobar flowmeter of the present invention comprises a Bitobar flow sensor, a differential pressure transmitter and a flow totalizer. Indenter, there are total pressure channels and static pressure channels with axes parallel to each other and located on opposite sides of the indenter in the indenter, and the opposite sides of the lower part of the indenter are respectively connected with the total pressure channel and the static pressure channel Total pressure hole and static pressure hole, the signal output end of the Bitoba flow sensor is connected to the signal input end of the differential pressure transmitter, and the signal output end of the differential pressure transmitter is connected to the signal input end of the flow totalizer , also includes a sensor mounting seat, the sensor mounting seat has upper and lower connecting flanges fixedly connected, the bottom of the lower connecting flange is connected with a mounting sleeve, the pressure guide tube seals through the upper connecting flange, and The pressure-taking head connected with the pressure guide tube is located under the installation sleeve, the number of the Bitobar flow sensor is multiple, and the number of the differential pressure transmitter is also multiple, and the number of Bitobar flow sensors is multiple. The pressure guiding tubes of the flow sensors are all sealed through the upper connecting flange, and the pressure-taking heads connected to the pressure-guiding tubes of each Bitoba flow sensor are located under the installation sleeve, and the pressure-taking heads of these Bitoba flow sensors The full pressure holes in the lower part are arranged gradually along the vertical direction; the signal output end of each Bitoba flow sensor is connected to the signal input end of the corresponding differential pressure transmitter, and the signal output ends of multiple differential pressure transmitters They are respectively connected to the corresponding signal input terminals of the flow totalizer.

作为本发明的改进，所述多个毕托巴流量传感器取压头内全压通道的轴线位于同一平面内、静压通道的轴线位于另一平面内。As an improvement of the present invention, the axis of the total pressure channel in the pressure head is located in the same plane, and the axis of the static pressure channel is located in another plane for the plurality of bitobar flow sensors.

采用上述结构的传感器组合式毕托巴流量计，使用时通过传感器安装座底部的安装套筒与被测量管道相配合把本发明中的毕托巴流量传感器装于被测量管道上，每个毕托巴流量传感器导压管底部的取压头均位于被测量管道内。由于这些毕托巴流量传感器取压头下部的全压孔沿竖直方向渐次排列，这就相当于使用多个不同的毕托巴流量计测量同一管道内的流体流量，测量结果取全部测量结果的平均值，测量结果相对准确，测量精度较高；当某一毕托巴流量传感器输出的一组差压信号经相对应的差压变送器传送至所述的流量积算仪积算出的流量值与全部测量结果的平均值差值超出一定范围时，积算仪可以输出其它测量结果的平均值，仍然可以得到相对准确的测量结果。本发明中输出测量结果误差较大的某一毕托巴流量传感器可在流量计维修期间进行维修或更换。The sensor combined type Bitobar flowmeter with the above structure is used. When in use, the Bitobar flow sensor in the present invention is installed on the measured pipeline through the installation sleeve at the bottom of the sensor mounting seat and the measured pipeline. The pressure-taking heads at the bottom of the pressure guiding tube of the Toba flow sensor are all located in the measured pipeline. Since these bitobar flow sensors take the full pressure holes at the lower part of the pressure head and arrange them gradually along the vertical direction, this is equivalent to using multiple different bitobar flowmeters to measure the fluid flow in the same pipeline, and the measurement results take all the measurement results The average value of the measurement result is relatively accurate and the measurement accuracy is high; when a set of differential pressure signals output by a Bitobac flow sensor is transmitted to the flow totalizer through the corresponding differential pressure transmitter When the difference between the flow value and the average value of all measurement results exceeds a certain range, the integrator can output the average value of other measurement results, and relatively accurate measurement results can still be obtained. In the present invention, a Bitoba flow sensor with a large error in the output measurement result can be repaired or replaced during the maintenance of the flow meter.

附图说明Description of drawings

下面结合附图对本发明作进一步地详细说明。The present invention will be described in further detail below in conjunction with the accompanying drawings.

图1是本发明一种传感器组合式毕托巴流量计的主视局剖结构示意图。Fig. 1 is a schematic diagram of a front view partial sectional structure of a sensor combined type Bitobar flowmeter of the present invention.

图2是图1的侧视局剖结构示意图。FIG. 2 is a schematic diagram of a partial sectional structure in a side view of FIG. 1 .

图3是图1中I处结构的放大示意图。Fig. 3 is an enlarged schematic view of the structure at I in Fig. 1 .

图4是沿图3中A-A线的剖视示意图。Fig. 4 is a schematic cross-sectional view along line A-A in Fig. 3 .

具体实施方式Detailed ways

参见图1－图4，本发明一种传感器组合式毕托巴流量计，包括毕托巴流量传感器10、差压变送器20和流量积算仪30，毕托巴流量传感器具有导压管11和与导压管相连的取压头12，取压头内有轴线相互平行且位于取压头内相对两侧的全压通道13和静压通道14，取压头12下部的相对两侧具有分别与全压通道13和静压通道14相连通的全压孔15和静压孔16，所述毕托巴流量传感器10的信号输出端与差压变送器20的信号输入端相连，差压变送器20的信号输出端与流量积算仪30的信号输入端相连，还包括有传感器安装座40，该传感器安装座具有固定相连的上、下连接法兰41、42，下连接法兰42的底部连有安装套筒43，所述的导压管11密封穿过上连接法兰41、且与导压管相连的取压头12位于安装套筒43的下方，所述毕托巴流量传感器10的数量为多个，相应地所述差压变送器20的数量也为多个，多个毕托巴流量传感器10的导压管11均密封穿过上连接法兰41、且与每个毕托巴流量传感器10导压管相连的取压头12均位于安装套筒43的下方，并且这些毕托巴流量传感器取压头下部的全压孔15沿竖直方向渐次排列、静压孔16也相应地沿竖直方向渐次排列，即这些全压孔15沿竖直方向排列、且相邻全压孔之间的距离均相等，这些静压孔16沿竖直方向排列、且相邻静压孔之间的距离均相等；每个毕托巴流量传感器10的信号输出端均与相对应的差压变送器20的信号输入端相连，多个差压变送器20的信号输出端分别与所述流量积算仪30相对应的信号输入端相连。所述多个毕托巴流量传感器10取压头12内全压通道13的轴线位于同一平面内、静压通道14的轴线位于另一平面内，由于每个毕托巴流量传感器10取压头12内全压通道13和静压通道14的轴线相互平行，因此这两个平面也相互平行。Referring to Fig. 1-Fig. 4, a kind of sensor combined type bitobar flowmeter of the present invention comprises bitobar flow sensor 10, differential pressure transmitter 20 and flow totalizer 30, and bitobar flow sensor has pressure guiding tube 11 and the pressure-taking head 12 connected to the pressure-guiding tube. There are full-pressure passages 13 and static pressure passages 14 in the pressure-taking head whose axes are parallel to each other and located on opposite sides of the pressure-taking head. The opposite sides of the lower part of the pressure-taking head 12 are It has a total pressure hole 15 and a static pressure hole 16 respectively connected to the total pressure channel 13 and the static pressure channel 14, and the signal output end of the Bitobar flow sensor 10 is connected to the signal input end of the differential pressure transmitter 20, The signal output end of the differential pressure transmitter 20 is connected to the signal input end of the flow totalizer 30, and also includes a sensor mounting seat 40, which has fixedly connected upper and lower connecting flanges 41, 42, and the lower connecting flanges The bottom of the flange 42 is connected with the installation sleeve 43, and the pressure guide tube 11 is sealed through the upper connection flange 41, and the pressure-taking head 12 connected with the pressure guide tube is located under the installation sleeve 43. The number of Toba flow sensors 10 is multiple, correspondingly the number of said differential pressure transmitters 20 is also multiple, and the pressure guiding pipes 11 of multiple Bitoba flow sensors 10 are all sealed through the upper connecting flange 41 , and the pressure-taking head 12 connected with each bitobar flow sensor 10 pressure guide tube is located below the installation sleeve 43, and the full pressure holes 15 at the bottom of the pressure-taking head of these bitobar flow sensors are successively vertically Arrangement, static pressure holes 16 are also arranged gradually along the vertical direction accordingly, that is, these total pressure holes 15 are arranged along the vertical direction, and the distances between adjacent total pressure holes are all equal, these static pressure holes 16 are along the vertical direction Arranged, and the distance between adjacent static pressure holes is equal; the signal output end of each Bitoba flow sensor 10 is connected to the signal input end of the corresponding differential pressure transmitter 20, multiple differential pressure transmitters The signal output terminals of the meter 20 are respectively connected to the corresponding signal input terminals of the flow totalizer 30. The axis of the full pressure channel 13 in the pressure head 12 of the plurality of bitobar flow sensors 10 is located in the same plane, and the axis of the static pressure channel 14 is located in another plane, because each bitobar flow sensor 10 takes the pressure head The axes of the total pressure channel 13 and the static pressure channel 14 in 12 are parallel to each other, so these two planes are also parallel to each other.

图1中同时示出了本发明一种传感器组合式毕托巴流量计装于被测量管道1上时的结构状态，图1中毕托巴流量传感器以其安装座下连接法兰底部的安装套筒143与管道相配合装于被测量管道1上。Fig. 1 shows the structural state when a kind of sensor combination type Bitobar flowmeter of the present invention is installed on the pipeline 1 to be measured at the same time, among Fig. The sleeve 143 is matched with the pipe and installed on the measured pipe 1 .

各流量计之间的差压，因插入管道内插入深度占管道比例不同，当有介质流动时，因管道中心流速和管道边缘流速不同，各正压通路和负压通路之间的差压存在一定的比例，当管道内结垢是管道内径减小，此时插入管道内传感器比例变化，各正压通路和负压通路之间的差压存在一定的比例发生变化，积算仪通过记录差压比例关系和管道结垢情况的关系，计算管道结垢。从而计算介质的流通面积，自动修正。The differential pressure between the flowmeters is due to the different proportion of the insertion depth in the pipeline. When there is a medium flowing, the differential pressure between the positive pressure path and the negative pressure path exists due to the difference in the flow velocity at the center of the pipeline and the flow velocity at the edge of the pipeline. A certain ratio, when the fouling in the pipeline is the decrease of the inner diameter of the pipeline, the proportion of the sensor inserted into the pipeline changes at this time, and the differential pressure between each positive pressure path and negative pressure path changes in a certain proportion, and the totalizer records the difference Calculate the relationship between the pressure ratio and the scaling of the pipeline, and calculate the scaling of the pipeline. Thus, the flow area of the medium is calculated and corrected automatically.

Claims (2)

1. The sensor combined Pitot flowmeter comprises a Pitot flow sensor (10), a differential pressure transmitter (20) and a flow integrating instrument (30), wherein the Pitot flow sensor is provided with a pressure guide pipe (11) and a pressure taking head (12) which is connected with the pressure guide pipe, a full pressure channel (13) and a static pressure channel (14) are arranged in the pressure taking head, the axes of the full pressure channel (13) and the static pressure channel (14) are parallel to each other and are positioned at two opposite sides in the pressure taking head, the two opposite sides of the lower part of the pressure taking head (12) are provided with a full pressure hole (15) and a static pressure hole (16) which are respectively communicated with the full pressure channel (13) and the static pressure channel (14), the signal output end of the Pitot flow sensor (10) is connected with the signal input end of the differential pressure transmitter (20), the signal output end of the differential pressure transmitter (20) is connected with the signal input end of the flow integrating instrument (30), lower flange (41, 42), the bottom of lower flange (42) even has installation sleeve (43), pressure pipe (11) sealed pass upper flange (41), and with the pressure pipe link to each other get pressure head (12) be located the below of installation sleeve (43), its characterized in that: the pressure measuring device is characterized in that the number of the Pittobar flow sensors (10) is multiple, correspondingly, the number of the differential pressure transmitters (20) is also multiple, pressure guide pipes (11) of the Pittobar flow sensors (10) penetrate through the upper connecting flange (41) in a sealing mode, pressure measuring heads (12) connected with the pressure guide pipes of the Pittobar flow sensors (10) are located below the mounting sleeve (43), and full pressure holes (15) in the lower portions of the pressure measuring heads of the Pittobar flow sensors are arranged gradually in the vertical direction; the signal output end of each Pitotbar flow sensor (10) is connected with the signal input end of the corresponding differential pressure transmitter (20), and the signal output ends of the differential pressure transmitters (20) are respectively connected with the signal input ends corresponding to the flow totalizer (30).
2. The sensor combination pitot flowmeter of claim 1, characterized by: the axes of the full pressure channels (13) in the pressure taking heads (12) of the Pitotbar flow sensors (10) are positioned in the same plane, and the axes of the static pressure channels (14) are positioned in another plane.
CN201911110219.6A 2019-11-14 2019-11-14 A Sensor Combined Bitobah Flowmeter Pending CN110631648A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112302597A (en) * 2020-11-04 2021-02-02 海南毕托巴科技研究院有限公司 Wet steam metering device
CN112304382A (en) * 2020-09-23 2021-02-02 广东韶钢工程技术有限公司 Fixing device of Pitotbar flowmeter and using method thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2555500Y (en) * 2002-06-25 2003-06-11 山东中实股份有限公司 Dust-contg. airflow airspeed and airflow measurer
CN202853656U (en) * 2012-09-26 2013-04-03 天津通广集团数字通信有限公司 Temperature, pressure and flow velocity integrated sampling device based gas flue
CN104061968A (en) * 2014-07-03 2014-09-24 毕托巴（上海）科技有限公司 High-stability wide-flow-rate-range Pitot flow sensor pressure tapping head
CN104165664A (en) * 2014-08-22 2014-11-26 辽宁毕托巴科技有限公司 Pitot integrated mass flowmeter
CN204007745U (en) * 2014-08-22 2014-12-10 辽宁毕托巴科技有限公司 Pitot bar integrated mass flow meter
CN105716670A (en) * 2016-04-21 2016-06-29 承德菲时博特自动化设备有限公司 Multichannel rectangular needle tube flow measurement device
CN206114017U (en) * 2016-02-15 2017-04-19 青岛科迪博电子科技有限公司 Multiple spot matrix flow measuring device
CN210400479U (en) * 2019-11-14 2020-04-24 上海权宥环保科技有限公司 Sensor combined Pitotbar flowmeter

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2555500Y (en) * 2002-06-25 2003-06-11 山东中实股份有限公司 Dust-contg. airflow airspeed and airflow measurer
CN202853656U (en) * 2012-09-26 2013-04-03 天津通广集团数字通信有限公司 Temperature, pressure and flow velocity integrated sampling device based gas flue
CN104061968A (en) * 2014-07-03 2014-09-24 毕托巴（上海）科技有限公司 High-stability wide-flow-rate-range Pitot flow sensor pressure tapping head
CN104165664A (en) * 2014-08-22 2014-11-26 辽宁毕托巴科技有限公司 Pitot integrated mass flowmeter
CN204007745U (en) * 2014-08-22 2014-12-10 辽宁毕托巴科技有限公司 Pitot bar integrated mass flow meter
CN206114017U (en) * 2016-02-15 2017-04-19 青岛科迪博电子科技有限公司 Multiple spot matrix flow measuring device
CN105716670A (en) * 2016-04-21 2016-06-29 承德菲时博特自动化设备有限公司 Multichannel rectangular needle tube flow measurement device
CN210400479U (en) * 2019-11-14 2020-04-24 上海权宥环保科技有限公司 Sensor combined Pitotbar flowmeter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112304382A (en) * 2020-09-23 2021-02-02 广东韶钢工程技术有限公司 Fixing device of Pitotbar flowmeter and using method thereof
CN112302597A (en) * 2020-11-04 2021-02-02 海南毕托巴科技研究院有限公司 Wet steam metering device

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