CN208043141U - A kind of wedge-shaped differential pressure flowmeter with function of increasing pressure - Google Patents
A kind of wedge-shaped differential pressure flowmeter with function of increasing pressure Download PDFInfo
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- CN208043141U CN208043141U CN201820267383.2U CN201820267383U CN208043141U CN 208043141 U CN208043141 U CN 208043141U CN 201820267383 U CN201820267383 U CN 201820267383U CN 208043141 U CN208043141 U CN 208043141U
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- 239000002002 slurry Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- -1 steam Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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Abstract
本实用新型公开了一种具有增压功能的楔形差压流量计，包括流量计本体，所述流量计本体的内表壁中心处焊接有楔形节流件底座，所述流量计本体的外侧壳体上位于楔形节流件底座两侧分别连通有第一取压管和第二取压管，所述流量计本体的一端通过流量计接头与增压管连通，所述增压杆的外侧壳体中心处连通有增压口，所述楔形节流件底座上通过电控伸缩杆连接有楔形节流件，所述楔形节流件底座的中心处固定有控制器，且控制器通过导线与电控伸缩杆连接。本实用新型中，通过设有增压管，可以通过增压管上的增压口对管道内部流体进行增压，从而对流量计本体测取流量时产生的差压进行补偿，增强该增楔形差压流量计的实用性。
The utility model discloses a wedge-shaped differential pressure flowmeter with pressurization function, which comprises a flowmeter body, a wedge-shaped throttling member base is welded at the center of the inner surface wall of the flowmeter body, and an outer casing of the flowmeter body The body is located on both sides of the base of the wedge-shaped throttling element, respectively communicating with the first pressure-taking pipe and the second pressure-taking pipe. One end of the flowmeter body communicates with the booster pipe through the flowmeter joint, and the outer shell of the booster rod The center of the body is connected with a booster port, the base of the wedge-shaped throttle is connected with a wedge-shaped throttle through an electronically controlled telescopic rod, the center of the base of the wedge-shaped throttle is fixed with a controller, and the controller communicates with the Electrically controlled telescopic rod connection. In the utility model, by providing a booster tube, the fluid inside the pipeline can be pressurized through the booster port on the booster tube, thereby compensating for the differential pressure generated when the flow meter body measures the flow rate, and enhancing the wedge-shaped Availability of differential pressure flowmeters.
Description
技术领域technical field
本实用新型涉及楔形差压流量计技术领域，尤其涉及一种具有增压功能的楔形差压流量计。The utility model relates to the technical field of wedge-shaped differential pressure flowmeters, in particular to a wedge-shaped differential pressure flowmeter with boosting function.
背景技术Background technique
楔式流量计具有结构简单、坚固耐用、操作简便、适用性强等特点，而且具有高的精度和可靠性，特别适用于高粘度、低雷诺数流体；高腐蚀及高磨损流体的流量测量，对于清洁液体、高粘度流体、蒸气、料浆、腐蚀性流体、气体/空气等流体都能保持流量与差压的平方根成正比关系，介质粘度达到3000厘泊也不会影响楔式流量计的测量精度，以往使用的节流装置如孔板、喷嘴和文丘里管等，当雷诺数(Red)低至10000时，它们所测得的流量与差压平方根关系会出现重大偏差，而且随着雷诺数降低，偏差会越来越大，致使测量精度受到严重的影响。而楔式流量计雷诺数(Red)最低可达300，在这样极宽的范围内流量和差压始终成正比关系，流量系数呈线性状态。这样楔式流量计更理想地适用于测量传统流量计很难测量的流体：如燃料油、废水、煤焦油、铁矿浆、油浆、原油、碳黑溶液、两相流体等等。Wedge flowmeter has the characteristics of simple structure, sturdy and durable, easy operation, strong applicability, etc., and has high precision and reliability, especially suitable for high viscosity, low Reynolds number fluid; flow measurement of high corrosion and high wear fluid, For clean liquids, high viscosity fluids, steam, slurry, corrosive fluids, gas/air and other fluids, the flow rate is proportional to the square root of the differential pressure, and the viscosity of the medium reaches 3000 centipoise, which will not affect the performance of the wedge flowmeter. Measuring accuracy, the throttling devices used in the past, such as orifice plates, nozzles and Venturi tubes, etc., when the Reynolds number (Red) is as low as 10,000, there will be a significant deviation in the relationship between the measured flow rate and the square root of the differential pressure, and with the As the Reynolds number decreases, the deviation will become larger and larger, which will seriously affect the measurement accuracy. The Reynolds number (Red) of the wedge flowmeter can be as low as 300. In such an extremely wide range, the flow and differential pressure are always proportional, and the flow coefficient is linear. In this way, the wedge flowmeter is more ideally suitable for measuring fluids that are difficult to measure with traditional flowmeters: such as fuel oil, waste water, coal tar, iron ore slurry, oil slurry, crude oil, carbon black solution, two-phase fluid, etc.
楔式流量计在测取流体流量是会对流体造成一定的降压，而传统的楔式流量计缺少增压措施，使用不够方便，导致实用性较低。When the wedge flowmeter measures the fluid flow, it will reduce the pressure of the fluid to a certain extent, while the traditional wedge flowmeter lacks a booster measure and is not convenient to use, resulting in low practicability.
实用新型内容Utility model content
本实用新型的目的是为了解决现有技术中存在的缺点，而提出的一种具有增压功能的楔形差压流量计。The purpose of the utility model is to solve the shortcomings in the prior art, and propose a wedge-shaped differential pressure flowmeter with boosting function.
为了实现上述目的，本实用新型采用了如下技术方案：一种具有增压功能的楔形差压流量计，包括流量计本体，所述流量计本体的内表壁中心处焊接有楔形节流件底座，所述流量计本体的外侧壳体上位于楔形节流件底座两侧分别连通有第一取压管和第二取压管，所述流量计本体的一端通过流量计接头与增压管连通，所述增压杆的外侧壳体中心处连通有增压口，所述楔形节流件底座上通过电控伸缩杆连接有楔形节流件，所述楔形节流件底座的中心处固定有控制器，且控制器通过导线与电控伸缩杆连接。In order to achieve the above purpose, the utility model adopts the following technical scheme: a wedge-shaped differential pressure flowmeter with boosting function, including a flowmeter body, and a wedge-shaped throttling member base is welded at the center of the inner surface wall of the flowmeter body , the outer casing of the flowmeter body is located on both sides of the base of the wedge-shaped throttling element, respectively communicated with a first pressure-taking pipe and a second pressure-taking pipe, and one end of the flowmeter body communicates with the booster pipe through a flowmeter joint , the center of the outer casing of the booster rod is connected with a booster port, the base of the wedge-shaped throttle is connected with a wedge-shaped throttle through an electronically controlled telescopic rod, and the center of the base of the wedge-shaped throttle is fixed with a A controller, and the controller is connected with the electric control telescopic rod through wires.
作为上述技术方案的进一步描述：As a further description of the above technical solution:
所述流量计本体与增压管为可拆卸式连接结构，且流量计本体与增压管的内径相等。The flowmeter body and the booster pipe are in a detachable connection structure, and the inner diameters of the flowmeter body and the booster pipe are equal.
作为上述技术方案的进一步描述：As a further description of the above technical solution:
所述第一取压管和第二取压管关于流量计本体的竖直中线相互对称。The first pressure sensing pipe and the second pressure sensing pipe are symmetrical to each other with respect to the vertical centerline of the flowmeter body.
作为上述技术方案的进一步描述：As a further description of the above technical solution:
所述电控伸缩杆共连接有两个，且两个电控伸缩杆关于楔形节流件底座竖直中线相互对称。Two electrically controlled telescopic rods are connected in total, and the two electrically controlled telescopic rods are mutually symmetrical with respect to the vertical midline of the base of the wedge-shaped throttling member.
作为上述技术方案的进一步描述：As a further description of the above technical solution:
所述调节器的输出端与控制器的输入端电性连接，且控制器的输出端与电控伸缩杆的输入端电性连接。The output end of the regulator is electrically connected to the input end of the controller, and the output end of the controller is electrically connected to the input end of the electric control telescopic rod.
本实用新型中，首先通过设有增压管，可以通过增压管上的增压口对管道内部流体进行增压，从而对流量计本体测取流量时产生的差压进行补偿，增强该增楔形差压流量计的实用性，其次，增压管与流量计本体为可拆卸连接结构，不需要增压时可以直接进行拆卸，使用更加的方便，其次，通过设有电控伸缩杆，可以根据实际的需要对楔形节流件的开口高度进行调节，从而人可以测得不同的流量范围，扩大测量的范围，同时保证测量结构的精确度。In the utility model, firstly, by providing a booster tube, the fluid inside the pipeline can be pressurized through the booster port on the booster tube, thereby compensating the differential pressure generated when the flow meter body measures the flow rate, and enhancing the booster pressure. The practicability of the wedge-shaped differential pressure flowmeter, secondly, the booster tube and the flowmeter body are detachable connection structures, which can be directly disassembled when there is no need for booster, and are more convenient to use. Adjust the opening height of the wedge-shaped throttling member according to actual needs, so that people can measure different flow ranges, expand the measurement range, and ensure the accuracy of the measurement structure.
附图说明Description of drawings
图1为本实用新型提出的一种具有增压功能的楔形差压流量计的结构示意图；Fig. 1 is a structural schematic diagram of a wedge-shaped differential pressure flowmeter with boosting function proposed by the utility model;
图2为本实用新型提出的一种具有增压功能的楔形差压流量计的楔形节流件结构示意图；Fig. 2 is a structural schematic diagram of a wedge-shaped throttle member of a wedge-shaped differential pressure flowmeter with boosting function proposed by the utility model;
图3为本实用新型提出的一种具有增压功能的楔形差压流量计的增压管结构示意图。Fig. 3 is a structural schematic diagram of a booster tube of a wedge-shaped differential pressure flowmeter with a booster function proposed by the utility model.
图例说明：illustration:
1-流量计连接头、2-流量计本体、3-第一取压管、4-楔形节流件底座、5-调节器、6-第二取压管、7-增压管连接头、8-增压管、9-楔形节流件、10-控制器、11-电控伸缩杆、12-增压口。1-Flow meter connector, 2-Flow meter body, 3-First pressure tube, 4-Wedge throttle base, 5-Regulator, 6-Second pressure tube, 7-Boost tube connector, 8-boosting pipe, 9-wedge-shaped throttling piece, 10-controller, 11-electrically controlled telescopic rod, 12-boosting port.
具体实施方式Detailed ways
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本实用新型一部分实施例，而不是全部的实施例。The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.
参照图1-3，一种具有增压功能的楔形差压流量计，包括流量计本体2，流量计本体2的内表壁中心处焊接有楔形节流件底座4，流量计本体2的外侧壳体上位于楔形节流件底座4两侧分别连通有第一取压管3和第二取压管6，流量计本体2的一端通过流量计接头1与增压管8连通，增压杆8的外侧壳体中心处连通有增压口12，楔形节流件底座4上通过电控伸缩杆11连接有楔形节流件9，楔形节流件底座4的中心处固定有控制器10，且控制器10通过导线与电控伸缩杆11连接，流量计本体2与增压管8为可拆卸式连接结构，且流量计本体2与增压管8的内径相等，第一取压管3和第二取压管6关于流量计本体2的竖直中线相互对称，电控伸缩杆11共连接有两个，且两个电控伸缩杆11关于楔形节流件底座4竖直中线相互对称，调节器5的输出端与控制器10的输入端电性连接，且控制器10的输出端与电控伸缩杆11的输入端电性连接，调节器5将控制信号传输到控制器10中，控制器10控制电控伸缩杆11作用于楔形节流件9，从而对楔形节流件9的开口高度进行调节。Referring to Figures 1-3, a wedge-shaped differential pressure flowmeter with pressurization function includes a flowmeter body 2, a wedge-shaped throttling member base 4 is welded at the center of the inner wall of the flowmeter body 2, and the outside of the flowmeter body 2 The housing is located on both sides of the base of the wedge-shaped throttling element 4, respectively communicating with the first pressure-taking pipe 3 and the second pressure-taking pipe 6. One end of the flowmeter body 2 communicates with the booster pipe 8 through the flowmeter joint 1, and the booster rod The center of the outer casing of 8 is connected with a booster port 12, and the wedge-shaped throttling element base 4 is connected with a wedge-shaped throttling element 9 through an electronically controlled telescopic rod 11, and a controller 10 is fixed at the center of the wedge-shaped throttling element base 4, And the controller 10 is connected with the electronically controlled telescopic rod 11 through wires, the flowmeter body 2 and the booster tube 8 are detachable connection structures, and the inner diameters of the flowmeter body 2 and the booster tube 8 are equal, and the first pressure-taking tube 3 It is symmetrical to the second pressure-taking pipe 6 about the vertical centerline of the flowmeter body 2, and there are two electrically controlled telescopic rods 11 connected to each other, and the two electrically controlled telescopic rods 11 are mutually symmetrical about the vertical centerline of the wedge-shaped throttling member base 4 , the output end of the regulator 5 is electrically connected to the input end of the controller 10, and the output end of the controller 10 is electrically connected to the input end of the electronically controlled telescopic rod 11, and the regulator 5 transmits the control signal to the controller 10 , the controller 10 controls the electronically controlled telescopic rod 11 to act on the wedge-shaped throttling member 9 , thereby adjusting the opening height of the wedge-shaped throttling member 9 .
工作原理：该具有增压功能的楔形差压流量计使用时，楔式流量计的基本流量方程式来自于帕努利原理(能量守衡和连续方程)，通过楔块产生差压，该差压正比于质量或体积流量，楔式流量计的检测件是一块纵截面成V型的楔形节流件9，安装在流量计本体2的上部，它的圆滑顶角朝下，这样有利于含悬浮颗粒的液体或粘稠液体及脏污介质顺利通过，不会在节流件上游侧产生滞流，当流体通过楔形节流件9时，由于楔块的节流作用，将会在楔形节流件9的上下游产生差压，通过第一取压管3和第二取压管6进行取压，该差压与质量或体积流量成正比。通过与差压变送器连接，测得差压从而获得流量值。Working principle: When the wedge-shaped differential pressure flowmeter with pressurization function is used, the basic flow equation of the wedge-shaped flowmeter comes from Panulli's principle (energy conservation and continuity equation), and the differential pressure is generated through the wedge, and the differential pressure Proportional to the mass or volume flow rate, the detection piece of the wedge flowmeter is a wedge-shaped throttling piece 9 with a V-shaped longitudinal section, which is installed on the upper part of the flowmeter body 2, and its rounded top angle is facing downward, which is conducive to containing the suspension. Granular liquid or viscous liquid and dirty medium pass through smoothly without stagnation on the upstream side of the throttling piece. A differential pressure is generated upstream and downstream of the member 9, and the pressure is taken through the first pressure-taking pipe 3 and the second pressure-taking pipe 6, and the differential pressure is directly proportional to the mass or volume flow. By connecting with a differential pressure transmitter, the differential pressure is measured to obtain the flow value.
以上所述，仅为本实用新型较佳的具体实施方式，但本实用新型的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本实用新型揭露的技术范围内，根据本实用新型的技术方案及其实用新型构思加以等同替换或改变，都应涵盖在本实用新型的保护范围之内。The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Any equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022103453A1 (en) * | 2020-11-16 | 2022-05-19 | Rosemount Inc. | Fluid flow obstruction device for a process fluid flow measurement device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022103453A1 (en) * | 2020-11-16 | 2022-05-19 | Rosemount Inc. | Fluid flow obstruction device for a process fluid flow measurement device |
| US11371867B2 (en) | 2020-11-16 | 2022-06-28 | Rosemount Inc. | Fluid flow obstruction device for a process fluid flow measurement device |
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