CN109855786A - A kind of intelligent pressure transmitter for the detection of petroleum transportation pipeline oil pressure - Google Patents
A kind of intelligent pressure transmitter for the detection of petroleum transportation pipeline oil pressure Download PDFInfo
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- CN109855786A CN109855786A CN201711244434.6A CN201711244434A CN109855786A CN 109855786 A CN109855786 A CN 109855786A CN 201711244434 A CN201711244434 A CN 201711244434A CN 109855786 A CN109855786 A CN 109855786A
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- pressure
- pressure transmitter
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- microprocessor
- transmitter body
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Abstract
The invention discloses a kind of intelligent pressure transmitters for the detection of petroleum transportation pipeline oil pressure, including pressure transmitter body, the bottom of pressure transmitter body is provided with pressure guiding pipe, the side of pressure transmitter body is equipped with display screen and control button, alarm device is installed at the top of pressure transmitter body, the inside of pressure transmitter body is equipped with microprocessor, pressure sensor and temperature sensor, pressure sensor is internally provided with isolation diaphragm, differential pressure pickup is installed on isolation diaphragm, temperature sensor is connect by temperature-compensation circuit with microprocessor, microprocessor respectively with display screen, control button, alarm device, pressure sensor and differential pressure pickup electricly connect.It is provided with differential pressure pickup in the device, it can be by determining the detection of pressure transmitter inside and outside differential pressure the whether impaired leakage of its internal isolation diaphragm；It is provided with temperature sensor and ambient temperature can be detected, influence of the temperature to pressure detecting is excluded, increase detection accuracy.
Description
Technical field
The present invention relates to a kind of pressure transmitter, in particular to a kind of intelligence pressure for the detection of petroleum transportation pipeline oil pressure
Power transmitter belongs to petroleum Instrument technology field.
Background technique
Pressure transmitter is the instrument that the fluid pressures such as a kind of pair of petroleum are detected.The existing big multi-pass of pressure transmitter
Cross the pressure that a pair of of isolation diaphragm carrys out measurement process fluid.Isolation diaphragm includes high pressure latallae and low pressure latallae, high-pressure side
Diaphragm experiences the pressure of process fluid, and low pressure latallae experiences the pressure of ambient atmosphere, and pressure transmitter passes through high pressure latallae
Pressure difference between low pressure latallae and the gauge pressure for obtaining process fluid.Due to the low pressure latallae exposure of sensing atmospheric pressure
It is low so in the case where external environment is relatively severe, such as there are when corrosive liquid, gas or dust in external environment
Pressure latallae is possible to be corroded after a period of operation and internal filling liquid is caused to leak, and therefore event also occurs for transmitter
Barrier, it is therefore desirable to often the leakproofness of diaphragm be detected, while when diaphragm deformation side pressure, will receive the influence of temperature, produced
Difference is held up in raw certain survey.
Summary of the invention
The technical problem to be solved by the present invention is to overcome low pressure latallaes to be possible to be corroded simultaneously after a period of operation
Internal filling liquid is caused to leak, therefore transmitter also breaks down, it is therefore desirable to often detect to the leakproofness of diaphragm, together
When diaphragm deformation side pressure when, will receive the influence of temperature, generate the defect that difference is held up in certain survey, provide a kind of defeated for petroleum
The intelligent pressure transmitter for sending pipeline oil pressure to detect.
In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions:
The present invention provides a kind of intelligent pressure transmitters for the detection of petroleum transportation pipeline oil pressure, including pressure inverting
Device main body, the bottom of the pressure transmitter body are provided with pressure guiding pipe, and the side of the pressure transmitter body is equipped with aobvious
Display screen and control button are equipped with alarm device, the inside of the pressure transmitter body at the top of the pressure transmitter body
Microprocessor, pressure sensor and temperature sensor be installed, the pressure sensor is internally provided with isolation diaphragm, described
Differential pressure pickup is installed on isolation diaphragm, the temperature sensor is connect by temperature-compensation circuit with the microprocessor,
The microprocessor is electricly connected with the display screen, control button, alarm device, pressure sensor and differential pressure pickup respectively.
As a preferred technical solution of the present invention, the inside of the pressure transmitter body is equipped with battery.
As a preferred technical solution of the present invention, the microprocessor passes through signal transceiver and master controller signal
Connection.
As a preferred technical solution of the present invention, the microprocessor is stm32 single-chip microcontroller.
As a preferred technical solution of the present invention, the master controller is PLC controller.
As a preferred technical solution of the present invention, the alarm device is acoustooptic alarm.
The beneficial effects obtained by the present invention are as follows being: it is provided with differential pressure pickup in the device, it can be by static pressure
The whether impaired leakage of isolation diaphragm inside pressure transmitter, while pressure difference are determined the detection of pressure transmitter inside and outside differential pressure
Sensor can also pressure transmitter work when to its inside and outside differential pressure carry out real-time monitoring, prevent inside and outside differential pressure excessive, damage every
From diaphragm；It is provided with temperature sensor and temperature-compensation circuit, ambient temperature can be detected, excludes temperature to the shadow of pressure detecting
It rings, increases detection accuracy.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is frame principle figure of the invention；
In figure: 1, pressure transmitter body；2, pressure guiding pipe；3, display screen；4, control button；5, alarm device；6, micro process
Device；7, pressure sensor；8, differential pressure pickup；9, temperature sensor；10, temperature-compensation circuit；11, master controller.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Embodiment 1
As shown in Figs. 1-2, the present invention provides it is a kind of for petroleum transportation pipeline oil pressure detection intelligent pressure transmitter,
Including pressure transmitter body 1, the bottom of pressure transmitter body 1 is provided with pressure guiding pipe 2, the side of pressure transmitter body 1
Display screen 3 and control button 4 are installed, the top of pressure transmitter body 1 is equipped with alarm device 5, pressure transmitter body 1
Inside is equipped with microprocessor 6, pressure sensor 7 and temperature sensor 9, and pressure sensor 7 is internally provided with isolation diaphragm,
Differential pressure pickup 8 is installed, temperature sensor 9 is connect by temperature-compensation circuit 10 with microprocessor 6, micro- place on isolation diaphragm
Reason device 6 is electricly connected with display screen 3, control button 4, alarm device 5, pressure sensor 7 and differential pressure pickup 8 respectively.
The inside of pressure transmitter body 1 is equipped with battery, provides electric energy by battery for its internal each element,
Without external power supply.Microprocessor 6 is connect by signal transceiver with 11 signal of master controller, conveniently be will test information and is passed to
Master controller.Microprocessor 6 is stm32 single-chip microcontroller, it is central processing unit, memory, Timer/Counter, various inputs
Output interface etc. is all integrated in the microcomputer of one piece of ic core on piece.Master controller 11 is PLC controller, it is used
A kind of programmable memory is used for its internally stored program, executes logical operation, sequential control, and timing is counted and grasped with arithmetic
The user oriented instructions such as work, and various types of mechanical or production processes are controlled by number or analog pattern input/output.It is alert
Report device 5 is acoustooptic alarm.
Concrete operating principle: the device is in use, access petroleum pipeline by pressure guiding pipe 2 for pressure transmitter body 1 first
Road makes petroleum enter pressure transmitter body 1, detects pressure transmitter to the oil pressure of pipeline road, and will test letter
Breath passes to master controller 11, and when oil pressure detects, pressure sensor 7 carries out Preliminary detection to oil pressure, and will test data transmitting
To microprocessor 6, while temperature sensor 9 detects Current Temperatures, and will test information by temperature-compensation circuit 10
Send microprocessor 6 to, practical oil is calculated in the information that 6 combination pressure sensor 7 of microprocessor and temperature sensor 9 detect
Pressure value.In the pressure transmitter course of work, differential pressure pickup 8 carries out real-time monitoring to the pressure difference of isolation diaphragm two sides, works as pressure
Difference it is excessive be more than isolation diaphragm tolerance range when, alarm device 5 sounds, remind staff reduce oil transportation speed, reduce petroleum pipeline
Interior pressure.When needing to detect being sealed property of pressure transmitter, first to liquid is filled with inside pressure transmitter, then
Liquid is set to keep static pressure state, if differential pressure pickup 8 detects that inside and outside differential pressure remains unchanged, leakproofness is good, if pressure difference is sent out
Raw to change, then sealing performance is not good for explanation, and isolation diaphragm is likely to occur damage.
The beneficial effects obtained by the present invention are as follows being: it is provided with differential pressure pickup in the device, it can be by static pressure
The whether impaired leakage of isolation diaphragm inside pressure transmitter, while pressure difference are determined the detection of pressure transmitter inside and outside differential pressure
Sensor can also pressure transmitter work when to its inside and outside differential pressure carry out real-time monitoring, prevent inside and outside differential pressure excessive, damage every
From diaphragm；It is provided with temperature sensor and temperature-compensation circuit, ambient temperature can be detected, excludes temperature to the shadow of pressure detecting
It rings, increases detection accuracy.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (6)
1. a kind of intelligent pressure transmitter for the detection of petroleum transportation pipeline oil pressure, including pressure transmitter body (1), special
Sign is that the bottom of the pressure transmitter body (1) is provided with pressure guiding pipe (2), the side of the pressure transmitter body (1)
Display screen (3) and control button (4) are installed, are equipped with alarm device (5) at the top of the pressure transmitter body (1), it is described
The inside of pressure transmitter body (1) is equipped with microprocessor (6), pressure sensor (7) and temperature sensor (9), the pressure
Force snesor (7) is internally provided with isolation diaphragm, is equipped on the isolation diaphragm differential pressure pickup (8), and the temperature passes
Sensor (9) is connect by temperature-compensation circuit (10) with the microprocessor (6), and the microprocessor (6) shows with described respectively
Display screen (3), control button (4), alarm device (5), pressure sensor (7) and differential pressure pickup (8) electricly connect.
2. a kind of intelligent pressure transmitter for the detection of petroleum transportation pipeline oil pressure according to claim 1, feature
It is, the inside of the pressure transmitter body (1) is equipped with battery.
3. a kind of intelligent pressure transmitter for the detection of petroleum transportation pipeline oil pressure according to claim 1, feature
It is, the microprocessor (6) is connect by signal transceiver with master controller (11) signal.
4. a kind of intelligent pressure transmitter for the detection of petroleum transportation pipeline oil pressure according to claim 1, feature
It is, the microprocessor (6) is stm32 single-chip microcontroller.
5. a kind of intelligent pressure transmitter for the detection of petroleum transportation pipeline oil pressure according to claim 3, feature
It is, the master controller (11) is PLC controller.
6. a kind of intelligent pressure transmitter for the detection of petroleum transportation pipeline oil pressure according to claim 1, feature
It is, the alarm device (5) is acoustooptic alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711244434.6A CN109855786A (en) | 2017-11-30 | 2017-11-30 | A kind of intelligent pressure transmitter for the detection of petroleum transportation pipeline oil pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711244434.6A CN109855786A (en) | 2017-11-30 | 2017-11-30 | A kind of intelligent pressure transmitter for the detection of petroleum transportation pipeline oil pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109855786A true CN109855786A (en) | 2019-06-07 |
Family
ID=66888904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711244434.6A Withdrawn CN109855786A (en) | 2017-11-30 | 2017-11-30 | A kind of intelligent pressure transmitter for the detection of petroleum transportation pipeline oil pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109855786A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019134802A1 (en) * | 2019-12-17 | 2021-06-17 | Endress+Hauser SE+Co. KG | Method for determining a malfunction of a diaphragm seal |
-
2017
- 2017-11-30 CN CN201711244434.6A patent/CN109855786A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019134802A1 (en) * | 2019-12-17 | 2021-06-17 | Endress+Hauser SE+Co. KG | Method for determining a malfunction of a diaphragm seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190607 |