WO2020029318A1 - Integrated intelligent vertical-pipeline online liquid density transmitter - Google Patents
Integrated intelligent vertical-pipeline online liquid density transmitter Download PDFInfo
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- WO2020029318A1 WO2020029318A1 PCT/CN2018/101089 CN2018101089W WO2020029318A1 WO 2020029318 A1 WO2020029318 A1 WO 2020029318A1 CN 2018101089 W CN2018101089 W CN 2018101089W WO 2020029318 A1 WO2020029318 A1 WO 2020029318A1
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- sensing device
- pressure sensing
- integrated intelligent
- density transmitter
- intelligent vertical
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/26—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring pressure differences
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/36—Analysing materials by measuring the density or specific gravity, e.g. determining quantity of moisture
Definitions
- the invention relates to a density transmitter, in particular to an integrated intelligent vertical pipeline liquid online density transmitter, and belongs to the technical field of high performance and intelligent instruments.
- the present invention provides an integrated intelligent vertical pipeline liquid online density transmitter with simple structure and accurate and fast monitoring.
- the integrated intelligent vertical pipeline liquid on-line density transmitter includes a fluid channel, an upper pressure sensing device and a lower pressure sensing device, and a signal converter installed between the upper pressure sensing device and the lower pressure sensing device; An opening is installed on one side of the fluid passage to install an upper pressure sensing device and a down pressure sensing device, and the upper pressure sensing device and the down pressure sensing device are provided with a signal line to transmit a signal to a signal converter.
- the fluid channel includes two tees, and one side of the three-way pipe is connected through a main pipe, and the other side of the pipe is connected with a connecting flange, and the middle pipe is installed on the pipe.
- Pressure sensing device and down pressure sensing device are two tees, and one side of the three-way pipe is connected through a main pipe, and the other side of the pipe is connected with a connecting flange, and the middle pipe is installed on the pipe.
- a trumpet-shaped reducing pipe is provided between the connecting flange and the tee.
- a horn diversion port is provided at a middle nozzle of the tee.
- a level indicator is provided on one side of the signal converter.
- a field indicator is provided on the signal converter.
- a placing platform is provided on the circumference of the connecting flange.
- the beneficial effect of the invention is that the structure is simple and the installation is convenient.
- the fluid is measured in real time by the upper pressure sensing device and the down pressure sensing device installed on one side of the channel, and then the obtained signal is transmitted to the signal converter, which is accurate and fast. The measurement results are obtained and monitored online.
- FIG. 1 is an overall appearance view of the present invention
- Figure 2 is a side view of the present invention
- FIG. 3 is a bottom view of the present invention.
- An integrated intelligent vertical pipeline liquid on-line density transmitter as shown in FIGS. 1 to 3 includes a fluid channel 1, an upper pressure sensing device 21a and a lower pressure sensing device 21b, and an upper pressure sensor The signal converter 2 between the device 21a and the down pressure sensing device 21b.
- An on-site indicator 23 is provided on the signal converter 2 to display the reading; a side of the fluid channel 1 is provided with an opening for mounting a pressure sensing device 21a and The down pressure sensing device 21b, the up pressure sensing device 21a and the down pressure sensing device 21b are provided with signal lines to transmit signals to the signal converter 2.
- the fluid channel 1 includes two three-way pipes 11, and one side of the three-way pipe 11 is connected through a main pipe 12 and the other side of the pipe is connected to each other.
- a connection flange 13 is connected, and a middle pressure port is provided with an upper pressure sensing device 21a and a lower pressure sensing device 21b.
- the fluid channel 1 of the present invention is connected to the vertical pipeline of the liquid to be tested through a connecting flange 13 and has a simple structure and convenient installation. Then, the upper pressure sensor 21a and the lower pressure sensor are installed on the fluid channel 1 side. 21b measures the fluid in real time, and transmits the obtained signal to the signal converter 2 to accurately and quickly obtain the measurement result for continuous monitoring online.
- Each pipe and the connection flange 13 can be connected by a screw thread provided by themselves, or by screws.
- a trumpet-shaped reducing pipe 14 is provided between the connecting flange 13 and the three-way pipe 11.
- the fluid coming from the fluid pipe will have a faster speed, and then when the fluid flows through the reducing pipe 14 As the cross section becomes larger, according to the principle of fluid mechanics, the velocity of the fluid will decrease and flow through the fluid channel 1, so that the signal converter 2 can measure the fluid density more accurately.
- a horn guide port 15 is provided at the middle nozzle of the three-way pipe 11, so that the fluid can flow more gently through the pressure sensing device.
- the transmitter of the present invention is installed on a vertical pipe, according to the working principle of the signal converter 2, that is, the center measurement membrane provided inside the signal converter 2 is displaced by a pressure difference, and the displacement is converted into Differential capacitors, in turn, output electrical signals, so the transmitter must be installed in the vertical direction as much as possible to avoid increasing the measurement error due to the gravity of the center measurement film itself.
- the present invention is provided with a level indicator 22 on one side of the signal converter 2.
- the level indicator 22 is a groove, and the notch of the groove is covered with a transparent glass, and the groove is airtight and transparent.
- a circle is drawn in the center, filled with a certain amount of liquid, so that a bubble is formed in the groove.
- the installer refers to the level indicator 22 and needs to adjust the air bubbles in the circle to ensure that the product is installed in a vertical position.
- the structure is simple, it is effective.
- a mounting platform 131 is provided on the circumference of the connection flange 13 and is placed on the ground before the product is installed. Since the connection flange 13 is mostly circular, it is not easy to fix. It is easy to damage the instrument and cause irreparable loss. Therefore, the placing platform 131 is a simple and effective way to provide a support surface, so that the product can be placed on the ground smoothly without using other tools to fix it, and it can also play a certain stabilization role during transportation.
Abstract
Disclosed is an integrated intelligent vertical-pipeline online liquid density transmitter, comprising a fluid passage (1), an upper pressure sensing device (21a), a lower pressure sensing device (21b), and a signal converter (2) mounted between the upper pressure sensing device (21a) and the lower pressure sensing device (21b), wherein one side of the fluid passage (1) is provided with openings for mounting the upper pressure sensing device (21a) and the lower pressure sensing device (21b), and the upper pressure sensing device (21a) and the lower pressure sensing device (21b) are provided with signal lines for sending signals to the signal converter (2). The integrated intelligent vertical-pipeline online liquid density transmitter is simple in structure and is convenient to install. Online monitoring is carried out by measuring fluid in real time by the upper pressure sensing device (21a) and the lower pressure sensing device (21b) mounted on one side of the passage, and then sending obtained signals to the signal converter (2) to accurately and quickly obtain a measurement result.
Description
技术领域Technical field
本发明涉及一种密度变送器，特别是一种一体化智能竖管道式液体在线密度变送器，属于高性能、智能化仪器仪表技术领域。
The invention relates to a density transmitter, in particular to an integrated intelligent vertical pipeline liquid online density transmitter, and belongs to the technical field of high performance and intelligent instruments.
背景技术Background technique
随着社会的进步，生活质量不断提高，很多加工行业的标准也在不断的提高。对各种液体或者液态混合物的监测也越来严格，譬如在石化行业对于石油、炼油、调油、油水介面监测；在食品工业用于葡萄汁、番茄汁、果糖浆、植物油及软饮料加工等生产现场；奶制品业；造纸业；黑浆、绿浆、白浆、碱溶液的测量；酿酒酒精度；化工类的尿素、清洁剂、乙二醇、酸碱及聚合物密度的测量等等，都是与人们生活息息相关的行业，所以要求监测结果快速准确。With the progress of society, the quality of life is constantly improving, and the standards of many processing industries are also continuously improving. The monitoring of various liquids or liquid mixtures is becoming more and more stringent. For example, in the petrochemical industry, the monitoring of oil, oil refining, oil blending, and oil-water interfaces; in the food industry, it is used for grape juice, tomato juice, fructose syrup, vegetable oil, and soft drink processing. On-site; Dairy industry; Paper industry; Measurement of black pulp, green pulp, white pulp, alkali solution; brewery alcohol content; chemical urea, detergent, glycol, acid and alkali and polymer density measurement, etc. All industries are closely related to people's lives, so monitoring results are required to be fast and accurate.
现在的监测方法大都是采用取样法，把样本放在测量仪器上测出结果，但是这样无法反映被测物的实时状况，且在运输过程中，需要考虑到时间、工具及外部环境的影响，很容易导致被测物变质，无法准确的测出结果。作为改进，出现了便携式的测量仪，监测人员将测量仪放入被测物中，然后在指示表上显示出结果，虽然较之前方便，但是由于需要监测人员进行操作，受环境条件限制较大，而且也很难实现监测人员连续不间断的进行测量。Most of the current monitoring methods use the sampling method to put the sample on the measuring instrument to measure the results, but this cannot reflect the real-time condition of the measured object, and during transportation, the influence of time, tools and the external environment need to be considered. It is easy to cause the test object to deteriorate, and the result cannot be accurately measured. As an improvement, a portable measuring instrument has appeared, and the monitoring staff puts the measuring instrument into the measured object, and then displays the results on the instruction sheet. Although it is more convenient than before, it is limited by the environmental conditions because it needs to be operated by the monitoring staff. It is also difficult to achieve continuous and uninterrupted measurement by the monitoring staff.
发明内容Summary of the invention
为解决上述问题，本发明提供一种结构简单，监测准确快速的一体化智能竖管道式液体在线密度变送器。 In order to solve the above problems, the present invention provides an integrated intelligent vertical pipeline liquid online density transmitter with simple structure and accurate and fast monitoring.
本发明为解决其问题所采用的技术方案是：The technical solutions adopted by the present invention to solve its problems are:
一体化智能竖管道式液体在线密度变送器，包括流体通道、上压力传感装置和下压力传感装置，以及安装在上压力传感装置和下压力传感装置中间的信号转换器；所述流体通道一侧设有开口安装上压力传感装置及下压力传感装置，上压力传感装置及下压力传感装置设有信号线传送信号至信号转换器。The integrated intelligent vertical pipeline liquid on-line density transmitter includes a fluid channel, an upper pressure sensing device and a lower pressure sensing device, and a signal converter installed between the upper pressure sensing device and the lower pressure sensing device; An opening is installed on one side of the fluid passage to install an upper pressure sensing device and a down pressure sensing device, and the upper pressure sensing device and the down pressure sensing device are provided with a signal line to transmit a signal to a signal converter.
作为优选的是，所述流体通道包括两个三通管，所述三通管的一侧管口通过一主管道相连，另一侧管口各连接一连接法兰，其中间管口安装上压力传感装置和下压力传感装置。Preferably, the fluid channel includes two tees, and one side of the three-way pipe is connected through a main pipe, and the other side of the pipe is connected with a connecting flange, and the middle pipe is installed on the pipe. Pressure sensing device and down pressure sensing device.
作为优选的是，所述连接法兰与三通管之间设有一喇叭形的变径管。Preferably, a trumpet-shaped reducing pipe is provided between the connecting flange and the tee.
作为优选的是，所述三通管的中间管口处设有喇叭导流口。Preferably, a horn diversion port is provided at a middle nozzle of the tee.
作为优选的是，所述信号转换器的一侧设有水平指示仪。Preferably, a level indicator is provided on one side of the signal converter.
作为优选的是，所述信号转换器上设有现场指示表。Preferably, a field indicator is provided on the signal converter.
作为优选的是，所述连接法兰的圆周上设有一放置平台。Preferably, a placing platform is provided on the circumference of the connecting flange.
本发明的有益效果是：结构简单，安装方便，通过安装在通道一侧的上压力传感装置和下压力传感装置实时测量流体，然后将得到的信号传送至信号转换器，准确并且快速的得出测量结果，进行在线监测。The beneficial effect of the invention is that the structure is simple and the installation is convenient. The fluid is measured in real time by the upper pressure sensing device and the down pressure sensing device installed on one side of the channel, and then the obtained signal is transmitted to the signal converter, which is accurate and fast. The measurement results are obtained and monitored online.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
下面结合附图和实施例对本发明作进一步说明：The invention is further described below with reference to the drawings and embodiments:
图1为本发明的整体外观图；FIG. 1 is an overall appearance view of the present invention;
图2为本发明的侧面视图；Figure 2 is a side view of the present invention;
图3为本发明的仰视图。FIG. 3 is a bottom view of the present invention.
具体实施方式detailed description
如附图1至3所示的一种一体化智能竖管道式液体在线密度变送器，包括流体通道1、上压力传感装置21a和下压力传感装置21b，以及安装在上压力传感装置21a和下压力传感装置21b中间的信号转换器2，信号转换器2上设有现场指示表23，可显示读数；所述流体通道1一侧设有开口安装上压力传感装置21a及下压力传感装置21b，上压力传感装置21a及下压力传感装置21b设有信号线传送信号至信号转换器2。An integrated intelligent vertical pipeline liquid on-line density transmitter as shown in FIGS. 1 to 3 includes a fluid channel 1, an upper pressure sensing device 21a and a lower pressure sensing device 21b, and an upper pressure sensor The signal converter 2 between the device 21a and the down pressure sensing device 21b. An on-site indicator 23 is provided on the signal converter 2 to display the reading; a side of the fluid channel 1 is provided with an opening for mounting a pressure sensing device 21a and The down pressure sensing device 21b, the up pressure sensing device 21a and the down pressure sensing device 21b are provided with signal lines to transmit signals to the signal converter 2.
较佳的是，为了方便拆装及清洗管道，所述流体通道1包括两个三通管11，所述三通管11的一侧管口通过一主管道12相连，另一侧管口各连接一连接法兰13，其中间管口安装上压力传感装置21a和下压力传感装置21b。Preferably, in order to facilitate disassembly and cleaning and cleaning of the pipeline, the fluid channel 1 includes two three-way pipes 11, and one side of the three-way pipe 11 is connected through a main pipe 12 and the other side of the pipe is connected to each other. A connection flange 13 is connected, and a middle pressure port is provided with an upper pressure sensing device 21a and a lower pressure sensing device 21b.
本发明的流体通道1通过连接法兰13连接在被测液体的竖向管道上，结构简单，安装方便，然后通过安装在流体通道1一侧的上压力传感装置21a和下压力传感装置21b实时测量流体，并将得到的信号传送至信号转换器2，准确并且快速的得出测量结果，进行在线连续的监测。各管道及连接法兰13之间可通过自身设有的螺纹连接，也可通过螺钉进行连接。The fluid channel 1 of the present invention is connected to the vertical pipeline of the liquid to be tested through a connecting flange 13 and has a simple structure and convenient installation. Then, the upper pressure sensor 21a and the lower pressure sensor are installed on the fluid channel 1 side. 21b measures the fluid in real time, and transmits the obtained signal to the signal converter 2 to accurately and quickly obtain the measurement result for continuous monitoring online. Each pipe and the connection flange 13 can be connected by a screw thread provided by themselves, or by screws.
作为优选的是，所述连接法兰13与三通管11之间设有一喇叭形的变径管14，从流体管道过来的流体，其速度都会比较快，然后当流体流过变径管14时，由于横截面变大，根据流体力学原理，流体的速度会降低，流过流体通道1，从而能够让信号转换器2更准确的测量流体密度。进一步的，在所述三通管11的中间管口处设有喇叭导流口15，这样能够让流体更缓和的流过压力传感装置。Preferably, a trumpet-shaped reducing pipe 14 is provided between the connecting flange 13 and the three-way pipe 11. The fluid coming from the fluid pipe will have a faster speed, and then when the fluid flows through the reducing pipe 14 As the cross section becomes larger, according to the principle of fluid mechanics, the velocity of the fluid will decrease and flow through the fluid channel 1, so that the signal converter 2 can measure the fluid density more accurately. Further, a horn guide port 15 is provided at the middle nozzle of the three-way pipe 11, so that the fluid can flow more gently through the pressure sensing device.
另外，由于本发明的变送器是在竖向管道上安装的，根据信号转换器2的工作原理，即通过压力差使设置在信号转换器2内部的中心测量膜产生位移，并且将位移转变为差动电容，进而输出电信号，所以变送器必须尽可能的设置在竖直方向上，以避免由于中心测量膜自身的重力影响，增加测量误差。In addition, since the transmitter of the present invention is installed on a vertical pipe, according to the working principle of the signal converter 2, that is, the center measurement membrane provided inside the signal converter 2 is displaced by a pressure difference, and the displacement is converted into Differential capacitors, in turn, output electrical signals, so the transmitter must be installed in the vertical direction as much as possible to avoid increasing the measurement error due to the gravity of the center measurement film itself.
为此，本发明在信号转换器2的一侧设有水平指示仪22，该水平指示仪22为一凹槽，凹槽的槽口覆盖一透明玻璃，并使凹槽密闭不透气，透明玻璃中心画有一圆圈，里面装入一定量的液体，使得在凹槽内形成一气泡。在安装产品时，安装人员参考水平指示仪22，需将气泡调整在圆圈内，以保证产品安装在竖直位置，其结构虽然简单，但是却行之有效。To this end, the present invention is provided with a level indicator 22 on one side of the signal converter 2. The level indicator 22 is a groove, and the notch of the groove is covered with a transparent glass, and the groove is airtight and transparent. A circle is drawn in the center, filled with a certain amount of liquid, so that a bubble is formed in the groove. When installing the product, the installer refers to the level indicator 22 and needs to adjust the air bubbles in the circle to ensure that the product is installed in a vertical position. Although the structure is simple, it is effective.
进一步的，所述连接法兰13的圆周上设有一放置平台131，产品还没安装时，被放置在地面上，由于连接法兰13多数为圆形，不容易固定，如果不小心翻转，很容易损坏仪表仪器，造成无法挽回的损失。所以放置平台131很简单有效的提供一个支撑面，使得产品能够平稳的放置在地面上，无需使用其它工具固定，而且在运输过程中，也能够起到一定的稳定作用。Further, a mounting platform 131 is provided on the circumference of the connection flange 13 and is placed on the ground before the product is installed. Since the connection flange 13 is mostly circular, it is not easy to fix. It is easy to damage the instrument and cause irreparable loss. Therefore, the placing platform 131 is a simple and effective way to provide a support surface, so that the product can be placed on the ground smoothly without using other tools to fix it, and it can also play a certain stabilization role during transportation.
以上说明书所述，仅为本发明的原理及实施例，凡是根据本发明的实质进行任何简单的修改及变化，均属于本发明所要求的保护范围之内。The above description is only the principle and embodiments of the present invention, and any simple modification and change made according to the essence of the present invention shall fall within the protection scope claimed by the present invention.
Claims (7)
- 一体化智能竖管道式液体在线密度变送器，其特征在于，包括流体通道（1）、上压力传感装置（21a）和下压力传感装置（21b），以及安装在上压力传感装置（21a）和下压力传感装置（21b）中间的信号转换器（2）；所述流体通道（1）一侧设有开口安装上压力传感装置（21a）及下压力传感装置（21b），上压力传感装置（21a）及下压力传感装置（21b）设有信号线传送信号至信号转换器（2）。 The integrated intelligent vertical pipeline liquid on-line density transmitter is characterized in that it includes a fluid channel (1), an upper pressure sensing device (21a) and a lower pressure sensing device (21b), and an upper pressure sensing device installed (21a) and a signal converter (2) between the down pressure sensing device (21b); an opening is provided on one side of the fluid channel (1) to install an upper pressure sensing device (21a) and a down pressure sensing device (21b) ), The upper pressure sensing device (21a) and the lower pressure sensing device (21b) are provided with signal lines to transmit signals to the signal converter (2).
- 根据权利要求1所述的一体化智能竖管道式液体在线密度变送器，其特征在于所述流体通道（1）包括两个三通管（11），所述三通管（11）的一侧管口通过一主管道（12）相连，另一侧管口各连接一连接法兰（13），其中间管口安装上压力传感装置（21a）和下压力传感装置（21b）。 The integrated intelligent vertical pipeline liquid on-line density transmitter according to claim 1, characterized in that the fluid channel (1) comprises two tees (11), one of the tees (11) The side nozzles are connected through a main pipe (12), and the other side nozzles are each connected with a connection flange (13). The middle nozzle is equipped with a pressure sensing device (21a) and a down pressure sensing device (21b). Ranch
- 根据权利要求2所述的一体化智能竖管道式液体在线密度变送器，其特征在于所述连接法兰（13）与三通管（11）之间设有一喇叭形的变径管（14）。 The integrated intelligent vertical pipeline liquid on-line density transmitter according to claim 2, characterized in that a trumpet-shaped reducing pipe (14) is provided between the connecting flange (13) and the tee (11). ). Ranch
- 根据权利要求2所述的一体化智能竖管道式液体在线密度变送器，其特征在于所述三通管（11）的中间管口处设有喇叭导流口（15）。The integrated intelligent vertical pipeline liquid on-line density transmitter according to claim 2, characterized in that a horn diversion port (15) is provided at a middle nozzle of the three-way pipe (11).
- 根据权利要求1或2所述的一体化智能竖管道式液体在线密度变送器，其特征在于所述信号转换器（2）的一侧设有水平指示仪（22）。 The integrated intelligent vertical pipeline liquid on-line density transmitter according to claim 1 or 2, characterized in that a level indicator (22) is provided on one side of the signal converter (2). Ranch
- 根据权利要求1或2所述的一体化智能竖管道式液体在线密度变送器，其特征在于所述信号转换器（2）上设有现场指示表（23）。 The integrated intelligent vertical pipeline liquid on-line density transmitter according to claim 1 or 2, characterized in that a field indicator (23) is provided on the signal converter (2). Ranch
- 根据权利要求2所述的一体化智能竖管道式液体在线密度变送器，其特征在于所述连接法兰（13）的圆周上设有一放置平台（131）。 The integrated intelligent vertical pipeline liquid on-line density transmitter according to claim 2, characterized in that a placement platform (131) is provided on a circumference of the connection flange (13). Ranch
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| CN201810895485.3 | 2018-08-08 | ||
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| WO2020029318A1 true WO2020029318A1 (en) | 2020-02-13 |
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| CN206756633U (en) * | 2017-04-12 | 2017-12-15 | 恒力石化（大连）有限公司 | Desulfurizing tower density on-line measurement device |
-
2018
- 2018-08-17 WO PCT/CN2018/101089 patent/WO2020029318A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2001013083A1 (en) * | 1999-08-13 | 2001-02-22 | Rosemount Inc. | Pressure transmitter for measuring differential, absolute and/or pressure |
| CN202195996U (en) * | 2011-08-03 | 2012-04-18 | 马兆辉 | Pipeline type online liquid density test transducer |
| CN203132949U (en) * | 2013-02-23 | 2013-08-14 | 中山市三易测量仪器有限公司 | On-line densimeter |
| CN105804720A (en) * | 2016-04-29 | 2016-07-27 | 山东方锐智能科技有限公司 | Dual-body type oil-well three-phase automatic metering device |
| CN206399761U (en) * | 2016-12-12 | 2017-08-11 | 山东宏桥新型材料有限公司 | Flushable on-line monitoring density counter device |
| CN206756633U (en) * | 2017-04-12 | 2017-12-15 | 恒力石化（大连）有限公司 | Desulfurizing tower density on-line measurement device |
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