CN114459546A - Vortex shedding flowmeter with anti-corrosion function and used for detecting differential pressure signal - Google Patents
Vortex shedding flowmeter with anti-corrosion function and used for detecting differential pressure signal Download PDFInfo
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- CN114459546A CN114459546A CN202110389058.XA CN202110389058A CN114459546A CN 114459546 A CN114459546 A CN 114459546A CN 202110389058 A CN202110389058 A CN 202110389058A CN 114459546 A CN114459546 A CN 114459546A
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- differential pressure
- flowmeter
- pressure signal
- detecting
- fixedly connected
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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
- G01F1/20—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 detection of dynamic effects of the flow
- G01F1/32—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 detection of dynamic effects of the flow using swirl flowmeters
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/006—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus characterised by the use of a particular material, e.g. anti-corrosive material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/10—Preventing damage by freezing or excess pressure or insufficient pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/12—Cleaning arrangements; Filters
- G01F15/125—Filters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/14—Casings, e.g. of special material
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
本发明公开了一种具有防腐蚀功能的检测差压信号的涡街流量计，包括流量计本体，所述流量计本体两端的边侧固定连接有连接法兰，所述安装块的内部固定连接有过滤网，所述加热块的外表面固定连接有保温外壳。该具有防腐蚀功能的检测差压信号的涡街流量计，实现了检测差压信号的涡街流量计防腐蚀功能，大大提高了检测差压信号的涡街流量计的使用寿命，以及可对进入检测差压信号的涡街流量计内部的流体进行过滤，避免流体内的杂质吸附在检测差压信号的涡街流量计的内部，确保检测差压信号的涡街流量计检测时的精度，并且实现对检测差压信号的涡街流量计的加热，确保检测差压信号的涡街流量计能在特殊的环境下使用。The invention discloses a vortex flowmeter with anti-corrosion function for detecting differential pressure signals. There is a filter screen, and a heat preservation shell is fixedly connected to the outer surface of the heating block. The vortex flowmeter with anti-corrosion function for detecting differential pressure signal realizes the anti-corrosion function of the vortex flowmeter for detecting differential pressure signal, greatly improves the service life of the vortex flowmeter for detecting differential pressure signal, and can The fluid entering the vortex flowmeter that detects the differential pressure signal is filtered to prevent impurities in the fluid from being adsorbed inside the vortex flowmeter that detects the differential pressure signal, and ensures the accuracy of the vortex flowmeter that detects the differential pressure signal. And realize the heating of the vortex flowmeter for detecting the differential pressure signal, so as to ensure that the vortex flowmeter for detecting the differential pressure signal can be used in a special environment.
Description
Technical Field
The invention relates to the technical field of vortex shedding flowmeters, in particular to a vortex shedding flowmeter with an anti-corrosion function and used for detecting differential pressure signals.
Background
The vortex shedding flowmeter is used for researching the produced volume flow of measuring gas, steam or liquid, and the volume flow or mass flow under standard condition, is mainly used for measuring the flow of large-caliber gas, liquid and steam medium fluid in industrial pipelines of various industries, and is characterized by small pressure loss, wide measuring range and high precision, and is hardly influenced by parameters such as fluid density, pressure, temperature, viscosity and the like when measuring the working condition volume flow. No movable mechanical parts are needed, so that the reliability is high, the maintenance amount is small, and the instrument parameters can be stable for a long time.
The surface of the vortex shedding flowmeter for detecting the differential pressure signal is not subjected to anti-corrosion treatment, and the vortex shedding flowmeter for detecting the differential pressure signal is easy to damage after being used for a long time, so that the use of the vortex shedding flowmeter for detecting the differential pressure signal is greatly reduced at the back, the inflowing fluid cannot be filtered, impurities in the fluid are easy to adsorb in the vortex shedding flowmeter for detecting the differential pressure signal, the detection precision of the vortex shedding flowmeter for detecting the differential pressure signal is influenced, the vortex shedding flowmeter for detecting the differential pressure signal cannot be heated simultaneously, and the vortex shedding flowmeter cannot be normally used in a special environment, the limitation is large, and the practicability of the vortex shedding flowmeter for detecting the differential pressure signal is reduced.
Disclosure of Invention
The invention aims to provide a vortex shedding flowmeter with an anti-corrosion function for detecting a differential pressure signal, which aims to solve the problems that the surface of the existing vortex shedding flowmeter for detecting the differential pressure signal, which is proposed in the background art, is not subjected to anti-corrosion treatment, so that the damage of the vortex shedding flowmeter for detecting the differential pressure signal is easily caused after long-time use, the use back of the vortex shedding flowmeter for detecting the differential pressure signal is greatly reduced, inflow fluid cannot be filtered, impurities in the fluid are easily adsorbed in the vortex shedding flowmeter for detecting the differential pressure signal, the detection precision of the vortex shedding flowmeter for detecting the differential pressure signal is influenced, meanwhile, the vortex shedding flowmeter for detecting the differential pressure signal cannot be heated, and cannot be normally used in a special environment, the limitation is large, and the practicability of the vortex shedding flowmeter for detecting the differential pressure signal is reduced.
In order to achieve the purpose, the invention provides the following technical scheme: a vortex shedding flowmeter with an anti-corrosion function for detecting differential pressure signals comprises a flowmeter body, wherein connecting flanges are fixedly connected to the side edges of the two ends of the flowmeter body, connecting holes are formed in the two ends of the flowmeter body, mounting holes are formed in the two ends of the flowmeter body, the connecting holes and the mounting holes are internally provided with mounting blocks, the mounting blocks are fixedly connected with a filter screen in the mounting blocks, dismounting grooves are formed in the outer sides of the mounting blocks, a vortex generating body is mounted in the flowmeter body, a heating block is fixedly connected to the outer surface of the flowmeter body, a heat-insulating shell is fixedly connected to the outer surface of the heating block, a mounting shell is fixedly connected to the upper end of the heat-insulating shell, an integrating instrument is fixedly connected to the upper end of the mounting shell, a differential pressure meter is mounted in the mounting shell, and a pressure guiding pipe is fixedly connected to the lower end of the differential pressure meter, the utility model discloses a vortex generator, including installation shell, detection element, heating block, junction box, detection element's lower extreme, the inside that the inside of installation shell is located the below of differential pressure gauge installs detection element, detection element's lower extreme extends to the inside of vortex generator, the upper right end fixedly connected with connector lug of heating block, the upper end of connector lug extends to the outside fixedly connected with connecting wire's of lagging casing one end, connecting wire's other end fixedly connected with connects.
Preferably, the number of the connecting flanges is two and is symmetrical about a vertical center line of the flowmeter body, four fixing holes are symmetrically formed in the surface of each connecting flange, and anti-corrosion paint is arranged on the surface of the flowmeter body.
Preferably, the connecting hole is in threaded connection with the mounting block, the mounting hole is movably connected with the mounting block, and two dismounting grooves in the surface of the mounting block are symmetrically arranged.
Preferably, the heating block is the design of both ends open-ended cavity formula cylinder structure, heating block and connector lug, connecting wire, joint electric connection.
Preferably, the differential pressure gauge is electrically connected with the integrating instrument and the detecting element through cables.
Preferably, the two pressure leading pipes are symmetrically arranged about a vertical central line of the differential pressure gauge, the lower ends of the pressure leading pipes extend into the flowmeter body, and the lower ends of the pressure leading pipes are located on two sides of the vortex generating body.
Compared with the prior art, the invention has the beneficial effects that:
1. this vortex shedding flowmeter of detection differential pressure signal with anti-corrosion function, through being provided with anticorrosive paint on the surface of flowmeter body, the vortex shedding flowmeter anti-corrosion function of detecting differential pressure signal has been realized, the life of the vortex shedding flowmeter of detecting differential pressure signal has been improved greatly, and through the connecting hole, the mounting hole, the setting of installation piece and filter screen, can filter the inside fluid of the vortex shedding flowmeter who gets into the detection differential pressure signal, avoid the impurity in the fluid to adsorb in the inside of the vortex shedding flowmeter of detecting differential pressure signal, the precision of the vortex shedding flowmeter of ensureing to detect differential pressure signal when detecting.
2. This vortex shedding flowmeter of detection differential pressure signal with anti-corrosion function, through the setting of heating piece, lagging casing, connector lug, connecting wire and joint, accessible connecting wire carries out the ohmic heating to the heating piece, realizes the heating to the vortex shedding flowmeter of detecting differential pressure signal, ensures that the vortex shedding flowmeter of detecting differential pressure signal can use under special environment, greatly reduced the limitation of the vortex shedding flowmeter of detecting differential pressure signal, improved the practicality of the vortex shedding flowmeter of detecting differential pressure signal.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic side view of the present invention.
In the figure: 1. a flowmeter body; 2. a connecting flange; 3. connecting holes; 4. mounting holes; 5. mounting blocks; 6. a filter screen; 7. disassembling the groove; 8. a vortex generating body; 9. a heating block; 10. a heat-insulating shell; 11. mounting a shell; 12. an integrating instrument; 13. a differential pressure gauge; 14. a pressure guiding pipe; 15. a detection element; 16. a connector lug; 17. connecting a lead; 18. and (4) a joint.
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.
Referring to fig. 1-3, the present invention provides the following technical solutions: a vortex shedding flowmeter with an anti-corrosion function for detecting differential pressure signals comprises a flowmeter body 1, connecting flanges 2 are fixedly connected to the side edges of two ends of the flowmeter body 1, connecting holes 3 are formed in the two ends of the flowmeter body 1, mounting holes 4 are formed in the two ends of the flowmeter body 1, mounting blocks 5 are mounted in the connecting holes 3 and the mounting holes 4, a filter screen 6 is fixedly connected to the inside of each mounting block 5, a dismounting groove 7 is formed in the outer side of each mounting block 5, a vortex generating body 8 is mounted in the flowmeter body 1, a heating block 9 is fixedly connected to the outer surface of the flowmeter body 1, a heat-insulating shell 10 is fixedly connected to the outer surface of each heating block 9, a mounting shell 11 is fixedly connected to the upper end of each heat-insulating shell 10, an integrating instrument 12 is fixedly connected to the upper end of each mounting shell 11, and a differential pressure meter 13 is mounted in each mounting shell 11, the lower extreme fixedly connected with of differential pressure gauge 13 draws pressure pipe 14, and the inside below that lies in differential pressure gauge 13 of installation shell 11 is installed detecting element 15, and detecting element 15's lower extreme extends to the inside of vortex generating body 8, and the upper right end fixedly connected with connector lug 16 of heating block 9, the upper end of connector lug 16 extend to the outside fixedly connected with connecting wire 17's of lagging casing 10 one end, and the other end fixedly connected with of connecting wire 17 connects 18.
Further, the connecting flange 2 is symmetrically provided with two about the vertical center line of the flowmeter body 1, four fixing holes are symmetrically formed in the surface of the connecting flange 2, and the surface of the flowmeter body 1 is provided with anti-corrosion paint, so that the flowmeter body 1 can be conveniently disassembled and assembled, and the anti-corrosion of the flowmeter body 1 is realized.
Furthermore, connecting hole 3 and 5 threaded connection of installation piece, mounting hole 4 and 5 swing joint of installation piece, the dismantlement groove 7 symmetry on installation piece 5 surface is provided with two, the dismouting of the installation piece 5 of being convenient for, and then the convenient clearance to filter screen 6.
Further, the heating block 9 is in a hollow cylindrical structure design with openings at two ends, and the heating block 9 is electrically connected with the connector lug 16, the connecting wire 17 and the connector 18, so that the flowmeter body 1 is heated, and the flowmeter can be used in a special environment.
Furthermore, the differential pressure gauge 13 is electrically connected with the integrating instrument 12 and the detecting element 15 through cables, so that the normal use of the flowmeter is ensured.
Furthermore, two pressure leading pipes 14 are symmetrically arranged about the vertical center line of the differential pressure gauge 13, the lower ends of the pressure leading pipes 14 extend into the flowmeter body 1, and the lower ends of the pressure leading pipes 14 are located on two sides of the vortex generator 8, so that the differential pressure gauge 13 can detect the fluid.
The working principle is as follows: firstly, the mounting block 5 is screwed into the connecting hole 3 and the mounting hole 4 through the dismounting groove 7, then the filter screen 6 is mounted at two ends of the flowmeter, the flowmeter is mounted at a use place through the fixing hole on the connecting flange 2, each connecting wire on the flowmeter is connected, the differential pressure meter 13 transmits an output signal to the signal input end of the integrating instrument 12, the integrating instrument 12 collects and calculates the signal simultaneously, a flow value is obtained and displayed on a liquid crystal screen on the integrating instrument 12 in a digital form to complete measurement, meanwhile, the vortex generating body 8 generates strong vortex for the entering circulation, and the tiny low-flow-velocity fluid is detected by measuring the tiny differential pressure change generated by the resistance from the front and the back of the vortex generating body, namely the differential pressure signal, so the fluid has the characteristics of low lower limit flow rate and wide range of the detected flow, and is filtered by the filter screen 6 before entering the flowmeter, the detection of the flowmeter is prevented from being influenced by the adsorption of impurities in the flowmeter, the precision of the flowmeter during detection is ensured, when the flowmeter is used in a special environment, the connector 18 is connected with a power line, the heating block 9 heats the flowmeter body 1, the flowability of fluid in the flowmeter body 1 is ensured, and the normal use of the flowmeter is ensured.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a vortex street flowmeter of detection differential pressure signal with anti-corrosion function, includes flowmeter body (1), its characterized in that: the flowmeter is characterized in that connecting flanges (2) are fixedly connected to the lateral sides of the two ends of the flowmeter body (1), connecting holes (3) are formed in the two ends of the flowmeter body (1), mounting holes (4) are formed in the two ends of the flowmeter body (1) and located on the outer sides of the connecting holes (3), mounting blocks (5) are mounted in the connecting holes (3) and the mounting holes (4), a filter screen (6) is fixedly connected to the inside of each mounting block (5), a dismounting groove (7) is formed in the outer side of each mounting block (5), a vortex generating body (8) is mounted in the flowmeter body (1), a heating block (9) is fixedly connected to the outer surface of the flowmeter body (1), a heat-insulating shell (10) is fixedly connected to the outer surface of the heating block (9), and a mounting shell (11) is fixedly connected to the upper end of the heat-insulating shell (10), the utility model discloses a vortex generating device, including installation shell (11), the upper end fixedly connected with integrating instrument (12) of installation shell (11), the internally mounted of installation shell (11) has differential pressure gauge (13), the lower extreme fixedly connected with of differential pressure gauge (13) draws pressure pipe (14), the inside below that is located differential pressure gauge (13) of installation shell (11) is installed detecting element (15), detecting element's (15) lower extreme extends to the inside of vortex generating body (8), the upper right end fixedly connected with connector lug (16) of heating piece (9), the upper end of connector lug (16) extends to the one end of the outside fixedly connected with connecting wire (17) of lagging casing (10), the other end fixedly connected with of connecting wire (17) connects (18).
2. The vortex shedding flowmeter for detecting a differential pressure signal with an anti-corrosion function according to claim 1, wherein: the flowmeter is characterized in that two connecting flanges (2) are symmetrically arranged about the vertical center line of the flowmeter body (1), four fixing holes are symmetrically formed in the surface of each connecting flange (2), and anti-corrosion paint is arranged on the surface of the flowmeter body (1).
3. The vortex shedding flowmeter for detecting a differential pressure signal with an anti-corrosion function according to claim 1, wherein: connecting hole (3) and installation piece (5) threaded connection, mounting hole (4) and installation piece (5) swing joint, the dismantlement groove (7) symmetry on installation piece (5) surface is provided with two.
4. The vortex shedding flowmeter for detecting a differential pressure signal with an anti-corrosion function according to claim 1, wherein: heating block (9) are both ends open-ended cavity formula cylinder structural design, heating block (9) and connector lug (16), connecting wire (17), joint (18) electric connection.
5. The vortex shedding flowmeter for detecting a differential pressure signal with an anti-corrosion function according to claim 1, wherein: the differential pressure meter (13) is electrically connected with the integrating instrument (12) and the detecting element (15) through cables.
6. The vortex shedding flowmeter for detecting a differential pressure signal with an anti-corrosion function according to claim 1, wherein: the two pressure guide pipes (14) are symmetrically arranged on the vertical central line of the differential pressure gauge (13), the lower ends of the pressure guide pipes (14) extend into the flowmeter body (1), and the lower ends of the pressure guide pipes (14) are located on two sides of the vortex generating body (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110389058.XA CN114459546A (en) | 2021-04-12 | 2021-04-12 | Vortex shedding flowmeter with anti-corrosion function and used for detecting differential pressure signal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110389058.XA CN114459546A (en) | 2021-04-12 | 2021-04-12 | Vortex shedding flowmeter with anti-corrosion function and used for detecting differential pressure signal |
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| Publication Number | Publication Date |
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| CN114459546A true CN114459546A (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110389058.XA Pending CN114459546A (en) | 2021-04-12 | 2021-04-12 | Vortex shedding flowmeter with anti-corrosion function and used for detecting differential pressure signal |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210862811U (en) * | 2019-11-11 | 2020-06-26 | 天津凯隆仪表科技有限公司 | Prevent blockking up vortex street flowmeter |
| CN111397672A (en) * | 2020-04-01 | 2020-07-10 | 上海安钧智能科技股份有限公司 | Vortex street flowmeter for detecting differential pressure signal |
| CN211668578U (en) * | 2020-03-16 | 2020-10-13 | 河南新航流量仪表有限公司 | Differential pressure type throttling flowmeter |
| CN211740310U (en) * | 2020-03-18 | 2020-10-23 | 南通利奥化工科技有限公司 | Mass flow meter for low-temperature easily-crystallized materials |
-
2021
- 2021-04-12 CN CN202110389058.XA patent/CN114459546A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210862811U (en) * | 2019-11-11 | 2020-06-26 | 天津凯隆仪表科技有限公司 | Prevent blockking up vortex street flowmeter |
| CN211668578U (en) * | 2020-03-16 | 2020-10-13 | 河南新航流量仪表有限公司 | Differential pressure type throttling flowmeter |
| CN211740310U (en) * | 2020-03-18 | 2020-10-23 | 南通利奥化工科技有限公司 | Mass flow meter for low-temperature easily-crystallized materials |
| CN111397672A (en) * | 2020-04-01 | 2020-07-10 | 上海安钧智能科技股份有限公司 | Vortex street flowmeter for detecting differential pressure signal |
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