CN206965290U - A kind of monitoring system of petrol station filter screen differential pressure - Google Patents
A kind of monitoring system of petrol station filter screen differential pressure Download PDFInfo
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- CN206965290U CN206965290U CN201720323470.0U CN201720323470U CN206965290U CN 206965290 U CN206965290 U CN 206965290U CN 201720323470 U CN201720323470 U CN 201720323470U CN 206965290 U CN206965290 U CN 206965290U
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- differential pressure
- filter screen
- numerical value
- monitoring system
- alarm
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Abstract
The utility model discloses a kind of monitoring system of petrol station filter screen differential pressure, including is arranged at the differential pressure transmitter at petrol station filter screen both ends to be measured, for gathering the differential pressure numerical value at petrol station filter screen both ends to be measured；The processor being connected with differential pressure transmitter, for judging differential pressure numerical value, obtain judged result；The human interface station being connected with processor, for carrying out corresponding alarm according to judged result.The monitoring system can measure differential pressure before and after filter screen in real time using differential pressure transmitter, handled by signal judgement, alarm corresponding to being carried out on human interface station, worker carries out troubleshooting by corresponding alarm, realizes and differential pressure signal is timely and reliably monitored, and ensures the reliability of operating machinery oil, prevent Anti-fuel Oil System filter net jam, oil pressure declines, the generation of the event such as controlling organization imbalance or the dirty servo valve blocking of oil, ensures the safety of unit operation equipment.
Description
Technical field
Power plant equipment control field is the utility model is related to, more particularly to a kind of monitoring system of petrol station filter screen differential pressure
System.
Background technology
With requirement more and more higher of the people to electric power, the major-minor equipment in power plant is also gradually taken seriously, it is desirable to
It is set to become simple efficient by studying invention.
At present, the major-minor equipment in power plant corresponds to petrol station system and typically all installs filter screen, for impurity screening.Filter screen work shape
State is monitored that it is contact type differential pressure switch that differential pressure signal, which measures element, with differential pressure signal.But in actual applications, contact type
Often there is malfunction, tripping in differential pressure switch so that differential pressure signal is insincere, and influence technique personnel judge and problem timely processing.
In other industries, useful transmitter measures heavy oil filter screen differential pressure signal, but simply simply carries out differential pressure and show or alarm, in number
According in huge centralized monitoring system, its simple prompting is difficult to be aware, or even is ignored, if correct processing event not in time
Barrier, easily triggers serious consequence.
Therefore, how the effective monitoring to petrol station filter screen working condition, be those skilled in the art's technology urgently to be resolved hurrily
Problem.
Utility model content
The purpose of this utility model is to provide a kind of monitoring system of petrol station filter screen differential pressure, can effectively monitor petrol station filter
Net differential pressure, ensure the safety of unit operation equipment.
In order to solve the above technical problems, the utility model provides a kind of monitoring system of petrol station filter screen differential pressure, including：
The differential pressure transmitter at petrol station filter screen both ends to be measured is arranged at, for gathering the differential pressure at the petrol station filter screen both ends to be measured
Numerical value；
The processor being connected with the differential pressure transmitter, for judging the differential pressure numerical value, obtain judged result；
The human interface station being connected with the processor, for carrying out corresponding alarm according to the judged result
Preferably, the processor includes：
Judge module is connected with the differential pressure transmitter, for judging whether the differential pressure numerical value is number in pre-set interval
Value, when the differential pressure numerical value is the numerical value in the first pre-set interval, the judge module sends the first hint instructions；When described
When differential pressure numerical value is the numerical value in the second pre-set interval, the judge module sends the second hint instructions；
Control module one end is connected with the judge module, and the other end is connected with the human interface station, for when it
When receiving first hint instructions, the human interface station is controlled to perform the first alarm；Carried when it receives described second
When showing instruction, the human interface station is controlled to perform the second alarm.
Preferably, the human interface station includes alarm lamp and digital display module；The alarm lamp is sentenced with described
Disconnected module is connected, and when receiving first hint instructions that the judge module is sent, the alarm lamp takes on a red color
Chang Liang；When receiving second hint instructions that the judge module is sent, the alarm lamp takes on a red color flicker；
The digital display module is connected with judge module, for showing the differential pressure numerical value, and according to the differential pressure numerical value certainly
It is dynamic to change digital display color.
Preferably, in addition to it is arranged between the differential pressure transmitter and the petrol station filter screen to be measured, for real-time delivery
The valve of the pressure value of the petrol station filter screen both sides to be measured.
Preferably, in addition to it is arranged between the differential pressure transmitter and the processor, for by the differential pressure transporting
The electric signal of device is converted into the analog input module of data signal.
Preferably, the alarm luminaire body is software lamp or entity lamp.
The monitoring system of petrol station filter screen differential pressure provided by the utility model, including it is arranged at petrol station filter screen both ends to be measured
Differential pressure transmitter, for gathering the differential pressure numerical value at petrol station filter screen both ends to be measured；The processor being connected with differential pressure transmitter, for pair
Differential pressure numerical value is judged, obtains judged result；The human interface station being connected with processor, for carrying out phase according to judged result
Corresponding alarm.The monitoring system can measure differential pressure before and after filter screen in real time using differential pressure transmitter, be judged by signal
Processing, alarm corresponding to progress, worker carry out troubleshooting by corresponding alarm, had on human interface station
Effect ground monitoring petrol station filter screen differential pressure, ensure the safety of unit operation equipment.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to the accompanying drawing of offer.
Fig. 1 is a kind of structural representation of the monitoring system of petrol station filter screen differential pressure provided by the utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1 is refer to, Fig. 1 is a kind of structural representation of the monitoring system of petrol station filter screen differential pressure provided by the utility model
Scheme, arrow represents liquid flow direction in figure.
In a kind of embodiment provided by the utility model, the monitoring system of petrol station filter screen differential pressure mainly includes
The system includes probe tube 10 before and after filter screen, valve 11, differential pressure transmitter 12, analog input module 13, processor 14, man-machine
Interface Station 15.From perforate in petrol station filter screen front and rear pipes, two probe tubes 10 are installed with identical height level, in each probe tube 10
Upper arrangement valve 11, the pipeline come out from valve 11 lead to the positive/negative-pressure side of differential pressure transmitter 12, so complete hydraulic pressure signal loop
Connection.Analog input module 13 is delivered in electric signal loop since differential pressure transmitter 12, by cable, then passes through computer
Internal bus enters processor 14, and data deliver to human interface station 15 after processor internal analysis processing.
Wherein, in order to gather the differential pressure of petrol station filter screen both sides in real time, valve 11 can be set in petrol station filter screen both sides respectively,
Valve 11 can monitor the pressure value of collection petrol station filter screen both sides in real time.It is of course also possible to other kinds of piezoelectricity is selected to gather
Device.
Based on this, data processing is carried out in order to facilitate processor 14, it is defeated in the output end of differential pressure transmitter 12 connection analog quantity
Enter module 13, the output end of the analog input module 13 is connected with processor 14, can be by the electric signal of differential pressure transmitter 12
Data signal is converted into, data signal directly carries out discriminatory analysis by processor 14.
In order to optimize the processing arbitration functions of processor 14 in above-described embodiment, processor 14 includes judge module and control
Module.Wherein, the judge module is mainly used in judging that differential pressure numerical value is made whether for the numerical value in pre-set interval, when differential pressure numerical value
For numerical value in the first pre-set interval when, the first pre-set interval is 30~50kPa, and the judge module will send the first hint instructions
To control module, and perform the first alarm；When differential pressure numerical value is the numerical value in the second pre-set interval, the second pre-set interval
For 50~60kPa, the judge module sends the second hint instructions, and performs the second alarm.Certainly, the numerical value of pre-set interval
Above-mentioned numerical value is not limited only to, can also be set according to actual conditions.
Further, in order to improve the alarm effect of human interface station 15, human interface station 15 includes digital display module
With alarm lamp.Wherein, digital display module is connected with the control module in processor, and for showing the differential pressure number currently measured
Value, facilitate worker can directly monitoring arrive differential pressure numerical value, the differential pressure of convenient adjustment pipeline.If measuring loop occur abnormal conditions or
The super pre-set interval of differential pressure value, digital display can become color according to failure mode and show.Alarm lamp can carry out it is red often bright and
Red flicker, it is easy to monitor fault type.Wherein, alarm lamp is preferably software lamp or entity lamp, certainly, is also not necessarily limited to
State warning light.
Under specific application scenarios, by taking fire-resistant pump discharge filter screen differential pressure in Anti-fuel Oil System as an example；The one end of probe tube 10
It is connected on the pipeline before fire resistant oil pump outlet filter screen, in another fire resistant oil main pipe being connected to after filter screen, two probe tubes are with phase
With level height draw, by sample cock 11, hydraulic pressure signal is passed to differential pressure transmitter 12, realize by hydraulic pressure signal to
The conversion of standard 4~20mA analog signalses, the electric signal after conversion carry out analog-to-digital conversion by analog input module 13, most
Enter processor 14, human interface station 15 afterwards.Processor 14 is used cooperatively with human interface station 15, completes diagnostic alarms function.
Judge module receives data signal and judged, when differential pressure numerical value is numerical value in 30~50kPa sections, judge module will be sent
First hint instructions are to human interface station 15 so that alarm lamp takes on a red color zero diopter, when pressure drop is 50~60kPa sections
During interior numerical value, judge module will send the second hint instructions to human interface station 15 so that alarm lamp takes on a red color flicker.Report
Alert warning light is flashed by red zero diopter to red, further reminds operations staff, until failure is completely eliminated, alarm lamp is extensive
It is grey again.
Control module receives data signal and diagnosed, if signal circuit broken string, short circuit, power failure occurs or taken
Sample pipeline goes wrong, and control module will export digital display prompt message, and the current differential pressure value for showing digital display module is in pink colour.When
When differential pressure numerical value is numerical value in 30~50kPa sections, control module will export digital display prompt message, the difference for showing digital display module
It is in yellow to press numerical value；When pressure drop is numerical value in 50~60kPa sections, control module will export digital display prompt message, make
The differential pressure numerical value that digital display module is shown takes on a red color, in this way, the change of digital display color equally plays suggesting effect, until differential pressure value is recovered
Normal value, digital display color are in green and shown, show that filter screen work is in good condition.
In summary, the monitoring system for the petrol station filter screen differential pressure that the present embodiment is provided, including it is arranged at petrol station filter to be measured
The differential pressure transmitter at both ends is netted, for gathering the hydraulic pressure signal at petrol station filter screen both ends to be measured, and standard is converted to hydraulic pressure signal
Analog electric signal；The analog input module being connected with differential pressure transmitter, the analog electric signal for the standard of handle enter
Row analog-to-digital conversion, obtain the data signal that processor can identify；The processor being connected with analog input module, for receiving
The data signal of analog input module, and data signal is handled, obtain a variety of judged results；It is connected with processor
Human interface station, for carrying out corresponding alarm according to each judged result.The monitoring system can utilize differential pressure transporting
Device measures differential pressure before and after filter screen in real time, is handled by signal judgement, and alarm corresponding to progress, is realized on human interface station
Differential pressure signal is timely and reliably monitored, ensures the reliability of operating machinery oil, prevents Anti-fuel Oil System filter net jam, oil pressure
Decline, the generation of the event such as controlling organization imbalance or the dirty servo valve blocking of oil, ensure the safety of unit operation equipment.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (5)
- A kind of 1. monitoring system of petrol station filter screen differential pressure, it is characterised in that including：The differential pressure transmitter at petrol station filter screen both ends to be measured is arranged at, for gathering the differential pressure number at the petrol station filter screen both ends to be measured Value；The processor being connected with the differential pressure transmitter, for judging the differential pressure numerical value, obtain judged result；The human interface station being connected with the processor, for carrying out corresponding alarm according to the judged result；The processor includes：Judge module is connected with the differential pressure transmitter, for judging whether the differential pressure numerical value is numerical value in pre-set interval, When the differential pressure numerical value is the numerical value in the first pre-set interval, the judge module sends the first hint instructions；When the difference When pressure numerical value is the numerical value in the second pre-set interval, the judge module sends the second hint instructions；Control module one end is connected with the judge module, and the other end is connected with the human interface station, for when its reception During first hint instructions, the human interface station is controlled to perform the first alarm；Refer to when it receives second prompting When making, the human interface station is controlled to perform the second alarm.
- 2. monitoring system according to claim 1, it is characterised in that the human interface station includes alarm lamp sum Aobvious module；The alarm lamp is connected with the judge module, when first prompting for receiving the judge module transmission refers to When making, the alarm lamp takes on a red color Chang Liang；When receiving second hint instructions that the judge module is sent, institute Alarm lamp is stated to take on a red color flicker；The digital display module is connected with judge module, changed automatically for showing the differential pressure numerical value, and according to the differential pressure numerical value Become digital display color.
- 3. monitoring system according to claim 2, it is characterised in that also include be arranged on the differential pressure transmitter with it is described Valve between petrol station filter screen to be measured, for the pressure value of petrol station filter screen both sides to be measured described in real-time delivery.
- 4. monitoring system according to claim 3, it is characterised in that also include be arranged on the differential pressure transmitter with it is described Analog input module between processor, for the electric signal of the differential pressure transmitter to be converted into data signal.
- 5. monitoring system according to claim 4, it is characterised in that the alarm luminaire body is software lamp or entity Lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720323470.0U CN206965290U (en) | 2017-03-30 | 2017-03-30 | A kind of monitoring system of petrol station filter screen differential pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720323470.0U CN206965290U (en) | 2017-03-30 | 2017-03-30 | A kind of monitoring system of petrol station filter screen differential pressure |
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| CN206965290U true CN206965290U (en) | 2018-02-06 |
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| CN201720323470.0U Active CN206965290U (en) | 2017-03-30 | 2017-03-30 | A kind of monitoring system of petrol station filter screen differential pressure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108645777A (en) * | 2018-06-19 | 2018-10-12 | 长虹美菱股份有限公司 | A kind of the cleaning alarm set and its based reminding method of urethane raw filter |
| CN109364567A (en) * | 2018-09-26 | 2019-02-22 | 北京科普森自动化工程技术有限公司 | A kind of cleaning filter alarm method and system |
| CN110219861A (en) * | 2019-06-18 | 2019-09-10 | 湖南三一港口设备有限公司 | Filter is reversely connected alarm system and reversal connection alarm circuit |
| CN111974081A (en) * | 2020-07-31 | 2020-11-24 | 湖北三江航天红阳机电有限公司 | Aerogel glue solution recovery device, method, system, equipment and storage medium |
| CN114484252A (en) * | 2021-12-28 | 2022-05-13 | 华能上海燃机发电有限责任公司 | Oil return filter screen state detection equipment for lubricating oil system of single-shaft combined cycle unit |
-
2017
- 2017-03-30 CN CN201720323470.0U patent/CN206965290U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108645777A (en) * | 2018-06-19 | 2018-10-12 | 长虹美菱股份有限公司 | A kind of the cleaning alarm set and its based reminding method of urethane raw filter |
| CN109364567A (en) * | 2018-09-26 | 2019-02-22 | 北京科普森自动化工程技术有限公司 | A kind of cleaning filter alarm method and system |
| CN110219861A (en) * | 2019-06-18 | 2019-09-10 | 湖南三一港口设备有限公司 | Filter is reversely connected alarm system and reversal connection alarm circuit |
| CN110219861B (en) * | 2019-06-18 | 2021-05-28 | 三一海洋重工有限公司 | Filter reverse connection alarm system and reverse connection alarm loop |
| CN111974081A (en) * | 2020-07-31 | 2020-11-24 | 湖北三江航天红阳机电有限公司 | Aerogel glue solution recovery device, method, system, equipment and storage medium |
| CN114484252A (en) * | 2021-12-28 | 2022-05-13 | 华能上海燃机发电有限责任公司 | Oil return filter screen state detection equipment for lubricating oil system of single-shaft combined cycle unit |
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