CN210036836U - Temperature and pressure integrated electromagnetic flowmeter - Google Patents
Temperature and pressure integrated electromagnetic flowmeter Download PDFInfo
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- CN210036836U CN210036836U CN201921217999.XU CN201921217999U CN210036836U CN 210036836 U CN210036836 U CN 210036836U CN 201921217999 U CN201921217999 U CN 201921217999U CN 210036836 U CN210036836 U CN 210036836U
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Abstract
The utility model discloses a temperature and pressure integrated electromagnetic flowmeter, which comprises an electromagnetic flowmeter, a temperature sensor, a pressure sensor, two power chips and two low temperature drift resistors; the electromagnetic flowmeter comprises a flow guide pipe and a converter connected with the flow guide pipe, wherein a power supply, an MCU (microprogrammed control unit) processor and an LCD (liquid crystal display) screen are arranged in the converter; the measuring end of the pressure sensor is connected with a through hole formed in the side wall of the flow guide pipe, and the signal output end of the pressure sensor is connected with the signal input end of the MCU processor; the measuring end of the temperature sensor is connected with a blind hole formed in the side wall of the flow guide pipe, and the signal output end of the temperature sensor is connected with the signal input end of the MCU processor; the signal output end of the MCU processor is connected with the LCD display screen; one end of the first power supply chip is provided with a power supply, and the other end of the first power supply chip is connected with a temperature sensor through a first low-temperature drift resistor; one end of the second power supply chip is connected with the power supply, and the other end of the second power supply chip is connected with the pressure sensor through a second low-temperature drift resistor. The electromagnetic flowmeter has the advantages that multiple functions are concentrated on one instrument of the electromagnetic flowmeter, construction and installation are reduced, cost is low, and the electromagnetic flowmeter is simple in structure and easy to produce.
Description
Technical Field
The utility model belongs to the pipeline measurement field relates to a temperature and pressure integral type electromagnetic flowmeter.
Background
The electromagnetic flowmeter is a novel flow measuring instrument which is rapidly developed along with the development of electronic technology in 50-60 years of the 20 th century. The electromagnetic flowmeter is an instrument for measuring the flow of conducting fluid by applying the electromagnetic induction principle and according to the electromotive force induced when the conducting fluid passes through an external magnetic field, and the structure of the electromagnetic flowmeter mainly comprises a magnetic circuit system, a measuring conduit, electrodes, a shell, a lining, a converter and the like.
When the medium flow in the pipe section is measured, the electromagnetic flowmeter can only provide measurement parameters of the medium flow in the pipe section, but parameters such as a pressure value, a temperature value and the like of fluid in the pipe section are often detected on the pipe section. Therefore, instruments such as a pressure transmitter and a temperature transmitter are required to be installed on the measuring pipe, and due to the installation of excessive parts, the installation is complex, and higher construction and installation cost is brought.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide a temperature and pressure integral type electromagnetic flowmeter 4.
In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:
a temperature-pressure integrated electromagnetic flowmeter comprises an electromagnetic flowmeter, a temperature sensor, a pressure sensor, two power supply chips and two low-temperature drift resistors; the electromagnetic flowmeter comprises a flow guide pipe and a converter connected with the flow guide pipe, wherein a power supply, an MCU (microprogrammed control unit) processor and an LCD (liquid crystal display) screen are arranged in the converter; the measuring end of the pressure sensor is connected with a through hole formed in the side wall of the flow guide pipe, and the signal output end of the pressure sensor is connected with the signal input end of the MCU processor; the measuring end of the temperature sensor is connected with a blind hole formed in the side wall of the flow guide pipe, and the signal output end of the temperature sensor is connected with the signal input end of the MCU processor; the signal output end of the MCU processor is connected with the LCD display screen; one end of the first power supply chip is provided with a power supply, and the other end of the first power supply chip is connected with a power supply interface of the temperature sensor through a first low-temperature drift resistor; one end of the second power supply chip is connected with the power supply, and the other end of the second power supply chip is connected with the power supply interface of the pressure sensor through the second low-temperature drift resistor.
The utility model discloses further improvement lies in:
the pressure sensor is characterized by further comprising a ball valve, one end of the ball valve is connected with the measuring end of the pressure sensor, and the other end of the ball valve is connected with a through hole formed in the side wall of the flow guide pipe.
The device also comprises a pressure sensor support and a temperature sensor support; the pressure sensor support and the temperature sensor support are both of cylindrical structures with openings at two ends; the pressure sensor is connected with a through hole formed in the side wall of the flow guide pipe through a pressure sensor support, and the temperature sensor is connected with a blind hole formed in the side wall of the flow guide pipe through a temperature sensor support.
And the temperature sensor support is filled with heat-conducting silicone grease.
And an RS485 interface used for leading out measurement signals of the electromagnetic flowmeter, the temperature sensor and the pressure sensor is also arranged on the MCU processor of the electromagnetic flowmeter.
The electromagnetic flowmeter is an MFE600 type electromagnetic flowmeter.
The temperature sensor is an WZP series PT1000 temperature sensor.
The pressure sensor is an MPM380 pressure sensor.
The power supply chip is an OPA2171 chip.
Compared with the prior art, the utility model discloses following beneficial effect has:
flow parameter in the pipeline is measured through the electromagnetic flowmeter, temperature value in the pipeline is measured through temperature sensor, pressure value in the pipeline is measured through pressure sensor, handles the back with flow parameter, temperature value and pressure value through electromagnetic flowmeter's MCU treater at last, sends to the LCD display screen and shows, makes things convenient for the interior flow parameter of people's visual observation measurement pipeline, temperature and pressure. The power supply of the temperature sensor and the pressure sensor is realized through the two power chips and the two low-temperature drift resistors, and the normal operation of the device is ensured. And then realize that temperature measurement, pressure measurement and flow measurement are integrated on a device, reduced the complexity of construction installation, practiced thrift the cost of formation and installation, overall structure is simple and convenient production.
Further, a ball valve is arranged and is connected with the pressure sensor and the flow guide pipe through the ball valve; when the pressure sensor breaks down, the pressure sensor is disassembled by closing the ball valve for maintenance or replacement, and the measurement of pressure and flow is not influenced.
Furthermore, the temperature sensor support is filled with heat-conducting silicone grease, and the measurement accuracy of the temperature sensor is improved through the heat conduction effect of the heat-conducting silicone grease.
Further, an RS485 interface used for leading out measurement signals of the electromagnetic flowmeter, the temperature sensor and the pressure sensor is further arranged on the MCU processor, and the pressure signal, the temperature signal and the flow signal can be led out to a memory or a terminal so as to be convenient for recording and analyzing.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the pressure sensor support of the present invention;
fig. 3 is a schematic view of the temperature sensor support of the present invention;
fig. 4 is a schematic view of the pressure sensor of the present invention;
fig. 5 is a schematic view of the temperature sensor of the present invention;
fig. 6 is a power supply circuit diagram of the pressure sensor of the present invention;
FIG. 7 is a circuit diagram of the pressure sensor signal output terminal of the present invention connected to the MCU processor;
fig. 8 is a power supply circuit diagram of the temperature sensor of the present invention;
FIG. 9 is a circuit diagram of the MCU processor connected to the signal output terminal of the temperature sensor of the present invention;
fig. 10 is a circuit diagram of the reference voltage of the internal amplifier of the converter according to the present invention.
Wherein: 1-a pressure sensor support; 2-a ball valve; 3-a pressure sensor; 4-an electromagnetic flow meter; 5-a temperature sensor; 6-temperature sensor support.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The present invention will be described in further detail with reference to the accompanying drawings:
referring to fig. 1 to 10, the utility model relates to a temperature and pressure integral type electromagnetic flowmeter 4, float resistance including electromagnetic flowmeter 4, temperature sensor 5, pressure sensor 3, ball valve 2, pressure sensor support 1, temperature sensor support 6, two OPA2171 chips and two low temperatures.
The electromagnetic flow meter 4 comprises a flow guide pipe and a converter connected with the flow guide pipe, wherein a power supply, an MCU (microprogrammed control unit) processor and an LCD (liquid crystal display) screen are arranged in the converter, and the MFE600 type electromagnetic flow meter 4 can be selected. The measuring signal of the electromagnetic flowmeter 4 is input into the MCU processor in the converter to be processed and then is sent to the LCD display screen to be displayed, so that people can conveniently and visually know the current flow parameters in the pipeline.
The measuring end of the pressure sensor 3 is connected with one end of the ball valve 2, the other end of the ball valve 2 is connected with a through hole formed in a guide pipe of the electromagnetic flow meter 4, the pressure sensor 3 and the guide pipe are communicated through the ball valve 2, the pressure sensor 3 can be closed to maintain and replace the pressure sensor 3 when the pressure sensor 3 breaks down during measurement, the measurement of other two parts is not influenced, and the operation is convenient and simple. Meanwhile, the ball valve 2 and the pressure sensor 3 are supported by the pressure sensor support 1, and the stability of the whole device is improved. The signal output end of the pressure sensor 3 is connected with the signal input end of the MCU processor; the pressure measurement signal is sent to the LCD display screen and is shown after the processing of MCU treater, makes things convenient for people to carry out the pressure value of understanding in the current pipeline directly perceivedly. The measuring range of the pressure sensor 3 is selected according to the pressure of the actually used pipe section, generally 1.6Mpa, the precision is 0.5 percent, and the interface G1/4 is adopted; the MPM380 pressure sensor 3 is generally selected.
The measuring end of the temperature sensor 5 is connected with the blind hole formed in the side wall of the flow guide pipe, the bottom end of the blind hole is flush with the lining of the electromagnetic flowmeter 4, the flow measurement is not influenced, the temperature sensor 5 is supported by the temperature sensor support 6, the temperature sensor 5 is in threaded connection with the temperature sensor support 6, the stability and the reliability of the device are guaranteed, and meanwhile, the structure does not influence the installation and maintenance of the electromagnetic flowmeter 4 in the normal work process. The signal output part of the temperature sensor 5 is connected with the signal input part of the MCU processor, and the temperature measurement signal is sent to the LCD display screen for display after being processed by the MCU processor, so that people can conveniently and visually know the temperature value in the current pipeline. The temperature sensor support 6 is filled with heat-conducting silicone grease, and the accuracy of temperature measurement is improved through the heat conduction effect of the heat-conducting silicone grease. The temperature sensor 5 adopts WZP series PT1000 temperature sensor 5 with high precision and high stability, and the temperature measuring range is as follows: -50 ℃ to 200 ℃.
An RS485 interface is arranged on the MCU processor, and the pressure signal, the temperature signal and the flow signal can be led out to a memory or a terminal so as to be convenient for recording and analyzing.
One end of the first OPA2171 chip is powered, and the other end of the first OPA2171 chip is connected with a power interface of the temperature sensor 5 through a first low-temperature drift resistor to generate a 0.5mA constant current signal to drive the temperature sensor 5; one end of the second OPA2171 chip is connected with a power supply, and the other end of the second OPA2171 chip is connected with a power supply interface of the pressure sensor 3 through a second low-temperature drift resistor to generate a 1mA constant current signal to drive the pressure sensor 3.
The utility model discloses an installation method:
when a guide pipe of the conductive magnetic flowmeter 4 is manufactured, holes are formed in the front end and the rear end of the guide pipe, a pressure sensor support 1 and a temperature transmitter support are welded, and the rest of production processes are manufactured according to the electromagnetic flowmeter 4; after the electromagnetic flowmeter 4 is assembled, the ball valve 2 and the pressure sensor 3 are sequentially arranged on the welding seat of the pressure sensor 3; the temperature sensor 5 is mounted on the temperature sensor 5 seat. The cable signal lines of the temperature sensor 5 and the pressure sensor 3 are inserted into the converter case of the electromagnetic flow meter 4, and then the respective parameters are integrally debugged.
The utility model discloses a flow parameter in the 4 measuring tube ways of electromagnetic flow meter, through the temperature value in the 5 measuring tube ways of temperature sensor, through the pressure value in the 3 measuring tube ways of pressure sensor, handle the back with flow parameter, temperature value and pressure value through electromagnetic flow meter 4's MCU treater at last, send to the LCD display screen and show, make things convenient for flow parameter, temperature and the pressure in the people's visual observation measuring tube way. The power supply of the temperature sensor 5 and the pressure sensor 3 is realized through two OPA2171 chips and two low temperature drift resistors, and the normal operation of the device is ensured. And then realize that temperature measurement, pressure measurement and flow measurement are integrated on a device, reduced the complexity of construction installation, practiced thrift the cost of formation and installation, overall structure is simple and convenient production.
The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.
Claims (9)
1. A temperature-pressure integrated electromagnetic flowmeter is characterized by comprising an electromagnetic flowmeter (4), a temperature sensor (5), a pressure sensor (3), two power supply chips and two low-temperature drift resistors;
the electromagnetic flow meter (4) comprises a flow guide pipe and a converter connected with the flow guide pipe, and a power supply, an MCU processor and an LCD display screen are arranged in the converter;
the measuring end of the pressure sensor (3) is connected with a through hole formed in the side wall of the flow guide pipe, and the signal output end is connected with the signal input end of the MCU processor;
the measuring end of the temperature sensor (5) is connected with a blind hole formed in the side wall of the flow guide pipe, and the signal output end is connected with the signal input end of the MCU processor;
the signal output end of the MCU processor is connected with the LCD display screen;
one end of the first power supply chip is powered, and the other end of the first power supply chip is connected with a power supply interface of the temperature sensor (5) through a first low-temperature drift resistor; one end of the second power supply chip is connected with a power supply, and the other end of the second power supply chip is connected with a power supply interface of the pressure sensor (3) through a second low-temperature drift resistor.
2. The temperature-pressure integrated electromagnetic flowmeter according to claim 1, further comprising a ball valve (2), wherein one end of the ball valve (2) is connected with the measuring end of the pressure sensor (3), and the other end of the ball valve is connected with a through hole formed in the side wall of the flow guide pipe.
3. The temperature-pressure integrated electromagnetic flowmeter according to claim 1, further comprising a pressure sensor support (1) and a temperature sensor support (6);
the pressure sensor support (1) and the temperature sensor support (6) are both of cylindrical structures with openings at two ends; the pressure sensor (3) is connected with a through hole formed in the side wall of the flow guide pipe through the pressure sensor support (1), and the temperature sensor (5) is connected with a blind hole formed in the side wall of the flow guide pipe through the temperature sensor support (6).
4. The temperature-pressure integrated electromagnetic flowmeter as set forth in claim 3 wherein the temperature sensor support (6) is filled with thermally conductive silicone grease.
5. The temperature-pressure integrated electromagnetic flowmeter according to claim 1, wherein an RS485 interface for deriving measurement signals of the electromagnetic flowmeter (4), the temperature sensor (5) and the pressure sensor (3) is further arranged on the MCU processor of the electromagnetic flowmeter (4).
6. Temperature-pressure integrated electromagnetic flowmeter according to claim 1, characterized in that the electromagnetic flowmeter (4) is an MFE 600-type electromagnetic flowmeter.
7. Temperature-pressure integrated electromagnetic flowmeter according to claim 1, characterized in that said temperature sensor (5) is an WZP series PT1000 temperature sensor.
8. Temperature-pressure integrated electromagnetic flowmeter according to claim 1, characterized in that the pressure sensor (3) is an MPM380 pressure sensor.
9. The temperature-pressure integrated electromagnetic flowmeter of claim 1, wherein the power supply chip is an OPA2171 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921217999.XU CN210036836U (en) | 2019-07-30 | 2019-07-30 | Temperature and pressure integrated electromagnetic flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921217999.XU CN210036836U (en) | 2019-07-30 | 2019-07-30 | Temperature and pressure integrated electromagnetic flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210036836U true CN210036836U (en) | 2020-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921217999.XU Active CN210036836U (en) | 2019-07-30 | 2019-07-30 | Temperature and pressure integrated electromagnetic flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210036836U (en) |
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2019
- 2019-07-30 CN CN201921217999.XU patent/CN210036836U/en active Active
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