CN112666045A - System device and method for online continuous measurement of pH value and density - Google Patents

System device and method for online continuous measurement of pH value and density Download PDF

Info

Publication number
CN112666045A
CN112666045A CN202011509769.8A CN202011509769A CN112666045A CN 112666045 A CN112666045 A CN 112666045A CN 202011509769 A CN202011509769 A CN 202011509769A CN 112666045 A CN112666045 A CN 112666045A
Authority
CN
China
Prior art keywords
pipeline
sampling device
density
inlet pipeline
liquid level
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.)
Pending
Application number
CN202011509769.8A
Other languages
Chinese (zh)
Inventor
刘照辉
孟岩
丁亚娟
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.)
Zhejiang Jiahuan Engineering Technology Co ltd
Original Assignee
Zhejiang Jiahuan Engineering Technology Co ltd
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 Zhejiang Jiahuan Engineering Technology Co ltd filed Critical Zhejiang Jiahuan Engineering Technology Co ltd
Priority to CN202011509769.8A priority Critical patent/CN112666045A/en
Publication of CN112666045A publication Critical patent/CN112666045A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Sampling And Sample Adjustment (AREA)

Abstract

本发明涉及一种在线式连续测量酸碱度及密度的系统装置及其方法,可用于在线连续测量工艺介质酸碱度及密度,可广泛配套用于电厂脱硫脱硝及其他相关工艺系统。本系统装置主要包括通过配置相应辅助工艺设备,引导测量介质通过安装在反应釜侧壁的工艺管路,经阀门及增压泵取样后进入测量装置,测量装置上安装酸碱度测量仪及两个用于测量液位的变送器仪表,酸碱度直接通过酸碱度测量仪测出,密度值通过测量液位高度差转换算出。相较其他测量系统采用进口高价值音叉式密度计相比,通过上述方案改进后的系统装置具有经济可靠,介质密度计测量准确及便于在线检修冲洗等优点。

Figure 202011509769

The invention relates to a system device and method for continuously measuring pH and density on-line, which can be used to continuously measure pH and density of process medium on-line, and can be widely used in desulfurization, denitrification and other related process systems in power plants. The system device mainly includes the configuration of corresponding auxiliary process equipment to guide the measurement medium through the process pipeline installed on the side wall of the reaction kettle, and then enter the measurement device after sampling by the valve and the booster pump. For the transmitter instrument that measures the liquid level, the pH is directly measured by the pH measuring instrument, and the density value is converted and calculated by measuring the height difference of the liquid level. Compared with other measurement systems using imported high-value tuning fork type density meters, the improved system device through the above scheme has the advantages of economical reliability, accurate measurement of medium density meters, and easy on-line maintenance and flushing.

Figure 202011509769

Description

System device and method for online continuous measurement of pH value and density
Technical Field
The invention belongs to the field of instrument control for measuring pH value and density of a high-concentration process medium, and particularly relates to a system device and a method for continuously measuring the pH value and the density of the process medium in an on-line manner.
Background
In the current power plant and chemical industry, the pH value and density value of a medium are used as important parameters of a production process, and the accuracy and stability of the numerical value directly influence the operating efficiency and economic performance of the production process. In the present context, the widely used measuring method mainly adopts an imported tuning fork type densimeter or a mass flowmeter, the densimeter has high cost, and the tuning fork type densimeter has large value fluctuation when the flow rate of a medium and the vibration of a pipeline are high. And some domestic differential densimeters have simple structure, unreasonable design, and are easy to cause sediment to block a measuring port when being particularly installed in a high-concentration medium tank, so that the measured value is unstable and distorted, and meanwhile, the online maintenance can not be realized. Under the condition, the invention provides an improved pH value and density measuring system device with on-line continuous measuring function and a measuring method. The method is accurate and stable in on-site feedback measurement, low in manufacturing cost, economical and reliable.
Disclosure of Invention
The invention aims to solve the defects in the existing pH value and density value measuring technology and reduce the manufacturing cost, and provides a system device and a method for online continuously measuring the pH value and the density.
The scheme of the invention is as follows:
the invention provides a system device for online continuous measurement of pH value and density, which comprises a sampling device, an inlet pipeline, an outlet pipeline, an external discharge pipeline and a flushing pipeline, wherein the sampling device is connected with the inlet pipeline;
one end of the inlet pipeline is connected with the reaction kettle, and the other end of the inlet pipeline is connected with the bottom of the sampling device; the inlet pipeline is sequentially provided with a filter screen, a stop valve and a booster pump;
one end of the outlet pipeline is connected with the reaction kettle, and the other end of the outlet pipeline is connected with the top of the sampling device;
the outer discharge pipeline and the flushing pipeline are both connected with the inlet pipeline, wherein the outer discharge pipeline is connected with a pipe section between the stop valve and the booster pump on the inlet pipeline; the flushing pipeline is connected with a pipe section between the booster pump and the sampling device on the inlet pipeline; the sampling device comprises a sampling device body, and an acid-base meter is arranged on the sampling device body; the side wall of the sampling device body is also provided with at least two liquid level transmitters at different heights along the axis direction; the bottom and the top of the sampling device body are both provided with pore plate flanges with throttling devices, the top pore plate flange is connected with an outlet pipeline, and the bottom pore plate flange is connected with an inlet pipeline.
The invention also provides a method for continuously measuring the pH value and the density on line by the system device, which comprises the following steps:
closing the outer discharge pipeline and the flushing pipeline, and opening the inlet pipeline; filtering sundries with larger volume in the reaction kettle by using a filter screen, and enabling a medium to be detected to enter an inlet pipeline; under the action of the booster pump, the fluid enters the sampling device;
the orifice plate flange with the throttling device at the bottom limits the fluctuation of the flow velocity of liquid flowing into the sampling device, and an acid-base meter on the sampling device continuously measures the pH value; the liquid level transmitter with a higher installation position measures a pressure value P1, the liquid level transmitter with a lower installation position measures a pressure value P2, and the pressure value is converted into rho g (H1-H2)/(P1-P2) through the formula (P1-P2) ═ rho g (H1-H2); g, the gravity acceleration H1 and H2 are respectively the installation heights of the two liquid level transmitters;
in the continuous testing process, the medium passes through the sampling device and then returns to the reaction kettle along the outlet pipeline again to form a loop, so that online continuous measurement is realized;
during maintenance, the stop valve of the inlet pipeline is closed, and when the residual medium in the loop needs to be discharged during maintenance, the discharge pipeline is opened to discharge the measuring medium to the trench; when the maintenance is finished and the impurities in the pipeline need to be washed clean, the washing pipeline is opened to wash the pipeline.
Compared with the prior art, the on-line continuous measuring system device with pH value and density has the advantages that the system configuration is simple, the installation is convenient, and the defects that the value fluctuation of densimeters of other densimeter measuring devices is large, the online maintenance cannot be realized and the like are overcome through the two liquid level transmitters which are correspondingly installed up and down. Meanwhile, the invention also provides an external discharge pipeline and a flushing pipeline for the testing device, is provided with an acid-base meter, and has the functions of convenient flushing and needing to measure the pH value. In order to reduce the interference between pH value and density measurement, the middle section of the sampling device is set to be a cylindrical barrel with certain radial dimension, and a pH value meter and a liquid level transmitter are arranged on two corresponding sides.
Through the implementation of the scheme, the invention has the advantages of accurate measuring instrument, low cost, stable and reliable performance, convenient installation and on-line maintenance, and the like.
Drawings
FIG. 1 is a system diagram of an online system for continuously measuring pH and density according to the present invention.
FIG. 2 is a schematic diagram of the system structure of the sampling device in the system according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, in the present invention, unless otherwise explicitly specified or limited, the term "connected" and the like are to be interpreted broadly, and for example, "connected" may be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection, physical connection or wireless communication connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The invention is further described with reference to the following figures and specific examples.
As shown in fig. 1, in an embodiment of the present invention, the system device for online continuous measurement of ph and density includes a sampling device 8, an inlet pipeline, an outlet pipeline, an external discharge pipeline and a flushing pipeline;
one end of the inlet pipeline is connected with the reaction kettle, and the other end of the inlet pipeline is connected with the bottom of the sampling device 8; the inlet pipeline is sequentially provided with a filter screen 2, a stop valve 3 and a booster pump 5;
one end of the outlet pipeline is connected with the reaction kettle, and the other end of the outlet pipeline is connected with the top of the sampling device 8;
the outer discharge pipeline and the flushing pipeline are both connected with the inlet pipeline, wherein the outer discharge pipeline is connected with a pipe section between the stop valve 3 and the booster pump 5 on the inlet pipeline; the flushing pipeline is connected with a pipe section between the booster pump 5 and the sampling device on the inlet pipeline;
the sampling device 8 comprises a sampling device body, and an acid-base meter is arranged on the sampling device body; the side wall of the sampling device body is also provided with at least two liquid level transmitters at different heights along the axis direction; the bottom and the top of the sampling device body are both provided with pore plate flanges with throttling devices, the top pore plate flange is connected with an outlet pipeline, and the bottom pore plate flange is connected with an inlet pipeline.
In a preferred embodiment of the present invention, a sampling interface flange 14 of a ph meter is arranged on one side of the sampling device body, and is used for installing the ph meter; and the other side corresponding to the sampling interface flange 14 of the pH value meter is provided with two transmitter interface flanges with stop valves, and the transmitter interface flanges are respectively used for installing two liquid level transmitters. And the sampling interface flange 14 of the pH meter and the transmitter interface flange are both arranged on the sampling device at an oblique angle of 45 degrees.
As shown in fig. 2, in a preferred embodiment of the present invention, the middle section of the sampling device body is cylindrical, and the upper end and the lower end of the sampling device body are both truncated cone-shaped; the radial size of the middle section is larger than the sizes of the upper end and the lower end; the acid-base meter and the liquid level transmitter are both arranged at the middle section. The total size of the sampling device is 800 mm. And an orifice plate flange 7 with a throttling device is arranged at the inlet of the sampling device, the size of the orifice plate flange is DN40 flange interface, and the orifice plate flange is used for limiting the fluctuation of the flow rate of the liquid flowing into the sampling device. Therefore, the flow rate of liquid in the sampling device is stabilized, the sizes of the two ends of the sampling device are phi 45mm, the size of the middle of the sampling device is phi 159mm, the wall thickness of the sampling device is 5mm, and the sampling device is made of 316L stainless steel to ensure corrosion resistance and wear resistance. Sampling device one side is equipped with pH valve appearance interface flange, and two liquid level transmitter instrument interface flanges are equipped with to the opposite side, and flange takeover length is L100 mm, and flange 45 oblique angles are installed in sampling device, and its effect prevents partial silt deposit in the flange mouth.
The pH meter in the embodiment can be selected as an intelligent online pH meter according to the requirements of users, the glass electrode is installed on the flange interface 14 through flange connection, and signals are transmitted to a secondary instrument of the pH analyzer through the pH glass electrode through a signal wire. The user can design the analyzer and configure the field box according to specific needs, and the pH value is displayed on the analyzer while the transmitter current signal is transmitted to the control system. The two transmitter meters for measuring the liquid level are obtained by converting a formula (P1-P2) which is rho g (H1-H2) through measuring the liquid level pressure difference, wherein P1 is the measured value of the liquid level transmitter (12), P2 is the measured value of the liquid level transmitter (10), g is a coefficient 9.8, and (H1-H2) is the fixed value (0.5m) of the height difference of the two transmitters. And obtaining the density value rho of the process medium which is 4.9/(P1-P2) after conversion.
In a preferred embodiment of the present invention, the inlet pipeline extends into the reaction kettle, and the filter screen 2 is arranged at the end of the inlet pipeline extending into the reaction kettle. And an outer discharge valve 4 and a flushing valve 6 are respectively arranged on the outer discharge pipeline and the flushing pipeline.
The invention relates to a method for continuously measuring pH value and density on line by using a system device, which comprises the following steps:
closing the outer discharge pipeline and the flushing pipeline, and opening the inlet pipeline; the filter screen 2 filters sundries with larger volume in the reaction kettle, and the medium to be measured enters an inlet pipeline; under the action of the booster pump, the fluid enters the sampling device 8;
the orifice plate flange with the throttling device at the bottom limits the fluctuation of the flow velocity of liquid flowing into the sampling device, and an acid-base meter on the sampling device continuously measures the pH value; the liquid level transmitter with a higher installation position measures a pressure value P1, the liquid level transmitter with a lower installation position measures a pressure value P2, and the pressure value is converted into rho g (H1-H2)/(P1-P2) through the formula (P1-P2) ═ rho g (H1-H2); g, the gravity acceleration H1 and H2 are respectively the installation heights of the two liquid level transmitters;
in the continuous testing process, the medium passes through the sampling device and then returns to the reaction kettle 1 along the outlet pipeline again to form a loop, so that the online continuous measurement is realized;
during maintenance, the stop valve of the inlet pipeline is closed, and when the residual medium in the loop needs to be discharged during maintenance, the discharge pipeline is opened to discharge the measuring medium to the trench; when the maintenance is finished and the impurities in the pipeline need to be washed clean, the washing pipeline is opened to wash the pipeline.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (8)

1.一种在线式连续测量酸碱度及密度的系统装置及其方法,其特征在于包括取样装置(8)、进口管路、出口管路、外排管路和冲洗管路;1. A system device and a method thereof for online continuous measurement of pH and density, characterized in that it comprises a sampling device (8), an inlet pipeline, an outlet pipeline, an external discharge pipeline and a flushing pipeline; 所述进口管路一端与反应釜相连,另一端连接取样装置(8)的底部;所述进口管路上顺次设有滤网(2)、截止阀(3)、增压泵(5);One end of the inlet pipeline is connected to the reactor, and the other end is connected to the bottom of the sampling device (8); the inlet pipeline is sequentially provided with a filter screen (2), a stop valve (3), and a booster pump (5); 所述出口管路一端与反应釜相连,另一端连接取样装置(8)的顶部;One end of the outlet pipeline is connected with the reactor, and the other end is connected with the top of the sampling device (8); 所述外排管路和冲洗管路均与进口管路相连,其中,外排管路连接进口管路上截止阀(3)与增压泵(5)之间的管段;所述冲洗管路连接进口管路上增压泵(5)与取样装置之间的管段;The outer discharge pipeline and the flushing pipeline are both connected to the inlet pipeline, wherein the outer exhaust pipeline is connected to the pipe section between the cut-off valve (3) and the booster pump (5) on the inlet pipeline; the flushing pipeline is connected to The pipe section between the booster pump (5) and the sampling device on the inlet pipeline; 所述取样装置(8)包括取样装置本体,所述取样装置本体上安装有酸碱度计;取样装置本体侧壁上沿轴线方向的不同高度还设置有至少两个液位变送器;取样装置本体的底部和顶部均设置有带节流装置的孔板法兰,顶部孔板法兰连接出口管路,底部孔板法兰连接进口管路。The sampling device (8) includes a sampling device body on which a pH meter is installed; at least two liquid level transmitters are also provided on the side wall of the sampling device body at different heights along the axis direction; the sampling device body Both the bottom and the top of the machine are provided with orifice flanges with throttling devices, the top orifice flange is connected to the outlet pipeline, and the bottom orifice flange is connected to the inlet pipeline. 2.根据权利要求1所述的在线式连续测量酸碱度及密度的系统装置,其特征在于,所述取样装置本体的一侧设置有酸碱度计取样接口法兰(14),其用于安装酸碱度计;与酸碱度计取样接口法兰(14)对应的另一侧设置有两个带截止阀的变送器接口法兰,分别用于安装两个液位变送器。2. The system device for on-line continuous measurement of pH and density according to claim 1, wherein one side of the sampling device body is provided with a pH meter sampling interface flange (14), which is used for installing the pH meter ; The other side corresponding to the sampling interface flange (14) of the pH meter is provided with two transmitter interface flanges with shut-off valves, which are respectively used to install two liquid level transmitters. 3.根据权利要求1或2所述的在线式连续测量酸碱度及密度的系统装置,其特征在于,所述取样装置本体的中间段呈圆柱筒状,上下两端均呈圆台状;中间段的径向尺寸大于上下两端的尺寸;所述酸碱度计、液位变送器均安装在中间段。3. The system device for on-line continuous measurement of pH and density according to claim 1 or 2, characterized in that the middle section of the sampling device body is in the shape of a cylinder, and the upper and lower ends are in the shape of a truncated cone; The radial size is larger than the size of the upper and lower ends; the pH meter and the liquid level transmitter are installed in the middle section. 4.根据权利要求3所述的在线式连续测量酸碱度及密度的系统装置,其特征在于,所述酸碱度计取样接口法兰(14)和变送器接口法兰均以45°斜角安装于取样装置上。4. the system device of on-line continuous measurement of pH and density according to claim 3, is characterized in that, described pH meter sampling interface flange (14) and transmitter interface flange are all installed on the 45° oblique angle. on the sampling device. 5.根据权利要求1所述的在线式连续测量酸碱度及密度的系统装置,其特征在于,两个液位变送器之间的高度差为0.5m。5 . The system device for on-line continuous measurement of pH and density according to claim 1 , wherein the height difference between the two liquid level transmitters is 0.5 m. 6 . 6.根据权利要求1所述的在线式连续测量酸碱度及密度的系统装置,其特征在于,所述进口管路伸入所述反应釜内,所述滤网(2)设置在进口管路伸入反应釜内的一端的端部。6. The system device for on-line continuous measurement of pH and density according to claim 1, wherein the inlet pipeline extends into the reactor, and the filter screen (2) is arranged on the inlet pipeline to extend. into the end of one end of the reactor. 7.根据权利要求1所述的在线式连续测量酸碱度及密度的系统装置,其特征在于,所述外排管路和冲洗管路上分别设置有外排阀门(4)和冲洗阀门(6)。7 . The system device for on-line continuous measurement of pH and density according to claim 1 , wherein an external discharge valve ( 4 ) and a flush valve ( 6 ) are respectively provided on the external discharge pipeline and the flush pipeline. 8 . 8.一种根据权利要求1所述系统装置的在线式连续测量酸碱度及密度的方法,其特征在于包括如下步骤:8. A method for on-line continuous measurement of pH and density of the system device according to claim 1, characterized in that it comprises the steps: 关闭外排管路和冲洗管路,打开进口管路;过滤网(2)过滤反应釜内体积较大杂物,待测介质进入进口管路;在增压泵的作用下,流体进入取样装置(8);Close the effluent pipeline and flushing pipeline, and open the inlet pipeline; the filter screen (2) filters the large debris in the reaction kettle, and the medium to be tested enters the inlet pipeline; under the action of the booster pump, the fluid enters the sampling device (8); 底部带节流装置的孔板法兰限制流入取样装置内的液体流速波动,取样装置上的酸碱度计连续测量酸碱度;安装位置较高的液位变送器测量得出压力值P1,较低的液位变送器测量得出压力值P2,通过公式(P1-P2)=ρg(H1-H2)转换得出ρ=g(H1-H2)/(P1-P2);其中g重力加速度,H1、H2分别为两个液位变送器的安装高度;The orifice flange with a throttling device at the bottom limits the fluctuation of the liquid flow rate flowing into the sampling device, and the pH meter on the sampling device continuously measures the pH; the liquid level transmitter at the higher installation position measures the pressure value P1, and the lower The pressure value P2 is obtained from the measurement of the liquid level transmitter, and is converted by the formula (P1-P2)=ρg(H1-H2) to obtain ρ=g(H1-H2)/(P1-P2); where g gravitational acceleration, H1 , H2 are the installation heights of the two liquid level transmitters; 连续测试过程中,介质经取样装置后沿出口管路重新回到至反应釜(1)内,形成回路,实现在线连续测量;During the continuous testing process, the medium is returned to the reactor (1) along the outlet pipeline after the sampling device to form a loop to realize on-line continuous measurement; 检修时,关闭进口管路的截止阀,当检修需要将回路内残余介质排出时,打开外排管路将测量介质排至地沟;检修完毕需要将管路内杂质冲洗干净时,打开冲洗管路对管路进行冲洗。During maintenance, close the shut-off valve of the inlet pipeline. When the residual medium in the circuit needs to be discharged during maintenance, open the external discharge pipeline to discharge the measuring medium to the trench; when the impurities in the pipeline need to be washed clean after the maintenance, open the flushing pipeline Flush the lines.
CN202011509769.8A 2020-12-18 2020-12-18 System device and method for online continuous measurement of pH value and density Pending CN112666045A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011509769.8A CN112666045A (en) 2020-12-18 2020-12-18 System device and method for online continuous measurement of pH value and density

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011509769.8A CN112666045A (en) 2020-12-18 2020-12-18 System device and method for online continuous measurement of pH value and density

Publications (1)

Publication Number Publication Date
CN112666045A true CN112666045A (en) 2021-04-16

Family

ID=75407095

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011509769.8A Pending CN112666045A (en) 2020-12-18 2020-12-18 System device and method for online continuous measurement of pH value and density

Country Status (1)

Country Link
CN (1) CN112666045A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113731337A (en) * 2021-10-11 2021-12-03 内蒙古伊诺新材料有限公司 Hydroformylation reactor
CN115138088A (en) * 2022-05-19 2022-10-04 云南铜业股份有限公司西南铜业分公司 Specific gravity measuring mechanism and multi-effect evaporation automatic liquid discharging device
CN115371763A (en) * 2022-08-08 2022-11-22 重庆远达烟气治理特许经营有限公司科技分公司 Tower liquid level measurement system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207991987U (en) * 2018-01-08 2018-10-19 华润电力(宜昌)有限公司 Serosity density measurement system
CN208254996U (en) * 2018-06-21 2018-12-18 国电环境保护研究院有限公司 A kind of flue gas wet flue gas desulfurization gypsum slurries are in line density and pH value combined measurement device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207991987U (en) * 2018-01-08 2018-10-19 华润电力(宜昌)有限公司 Serosity density measurement system
CN208254996U (en) * 2018-06-21 2018-12-18 国电环境保护研究院有限公司 A kind of flue gas wet flue gas desulfurization gypsum slurries are in line density and pH value combined measurement device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113731337A (en) * 2021-10-11 2021-12-03 内蒙古伊诺新材料有限公司 Hydroformylation reactor
CN115138088A (en) * 2022-05-19 2022-10-04 云南铜业股份有限公司西南铜业分公司 Specific gravity measuring mechanism and multi-effect evaporation automatic liquid discharging device
CN115371763A (en) * 2022-08-08 2022-11-22 重庆远达烟气治理特许经营有限公司科技分公司 Tower liquid level measurement system

Similar Documents

Publication Publication Date Title
CN112666045A (en) System device and method for online continuous measurement of pH value and density
CN107083950B (en) Calibration system and calibration method based on weighing type single well metering device
CN108333078A (en) Fully-automatic on-line sampling formula slurry density measurement device
CN105486358B (en) Gas-liquid two-phase flow parameter measurement method based on Venturi tube double difference pressure
CN112459764A (en) Multifunctional oil-gas separation metering device
CN111811977B (en) Runoff sediment content and flow measurement device and measurement method
CN109882154B (en) Single well metering device
CN105181037A (en) Online accurate measuring device and online accurate measuring method for fluid flow
CN108254034B (en) On-line metering device and metering method for flow rate of oil, gas and water phase
CN202382779U (en) Concealed annular cone throttling device for online sweeping, pollution discharge and blockage prevention
CN209656494U (en) Slurry density measurement device in a kind of desulfurizing tower suitable for calcium method desulfurization
CN105424106B (en) A kind of vertically-mounted structure of V cone flow meters
CN215414498U (en) Sampling device for simultaneously measuring pH value and density in industry
CN109141563B (en) Z-type natural gas moisture real-time measurement device and method based on in-pipe phase separation
CN204085644U (en) A kind of flow calibrating device
CN109443454B (en) Flow monitoring device and method suitable for limited space
CN111307227A (en) Crescent pore plate gas-liquid two-phase flow measuring device
CN215492969U (en) High-precision sand content tester
CN216560464U (en) Flow cell device for measuring fluid parameters in pipeline
CN109839154B (en) Oil well metering system and method
CN209605887U (en) A kind of multi-parameter integral uniform velocity tube flowmeter
CN209444300U (en) A kind of drilling fluid well head mass flow monitoring device
CN211085374U (en) Differential pressure type flowmeter with anti-blocking device
CN214622182U (en) Liquid level and density integrated measurement system for slurry of wet desulphurization system
CN222618004U (en) Flowmeter error detection device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20210416