CN107228729A - Prepressing type bottom valve door condition sensor based on end dynamic data analytical technology - Google Patents
Prepressing type bottom valve door condition sensor based on end dynamic data analytical technology Download PDFInfo
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- CN107228729A CN107228729A CN201710460602.9A CN201710460602A CN107228729A CN 107228729 A CN107228729 A CN 107228729A CN 201710460602 A CN201710460602 A CN 201710460602A CN 107228729 A CN107228729 A CN 107228729A
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- pipeline
- pump
- programmable controller
- micropower
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/02—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers, electric circuits therefor, e.g. bridges, amplifiers or signal conditioning
- G01L9/06—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers, electric circuits therefor, e.g. bridges, amplifiers or signal conditioning of piezo-resistive devices
-
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Fluid Mechanics (AREA)
- Control Of Fluid Pressure (AREA)
- Pipeline Systems (AREA)
Abstract
As shown in Figure 1, prepressing type bottom valve door condition sensor of the present invention based on end dynamic data analytical technology is a kind of actively to manufacture precompression based on treating signal piping, the mechanics status data of fluid in simultaneously analysis of pipeline is gathered, and judges the valve state sensor of line end valve state according to this.The bottom valve door condition sensor it is main by the pre- press pump of 1. micropower, 2. sense pick-up device（Including but not limited to flow transmitter, pressure transmitter and other any can detect, gather in pipeline the single transmitter of the Mechanical Data of fluid or some transmitters combination unit）3. microcontroller and necessary annex etc. are constituted.
Description
Technical field
Realized the present invention relates to a kind of sensor, more particularly to a kind of mechanics parameter using fluid in dynamic analysis of pipeline
Detect the sensor of end valve state.
Background technology
Many fields are required for detecting the state of end valve in industrial and agricultural production, daily life, are automatically controlled with realizing
The purpose that circulating pump or booster pump are started or stoped.The detection means of existing end valve state works by pipeline static pressure,
So-called static pressure is exactly the pressure difference that there is difference in height formation between the input/output port liquid level of pipeline.Before using static pressure as technology
The end valve state detection means carried is divided into two kinds of " flow-type " and " pressure type "：So-called " flow-type " is exactly to utilize bottom valve
After door is opened, liquid is discharged under the driving of pressure gradient power in pipeline, piping flow increase, when the flow sensor on pipeline
When detecting flow and increase to certain, control assembly is the signal for sending " end valve is opened ", and control assembly is immediately
Open a kind of end valve state detection mode of pump；So-called " pressure type " is exactly after end valve is opened, due to flow rate of liquid
Increase, causes loine pressure due to bernoulli principle reduction, setting is reduced to when the pressure sensor on pipeline detects pressure
During threshold value, control assembly is a kind of end valve state detection mode for the signal for sending " end valve is opened ".To sum up institute
State, either " flow-type " still " pressure type " detect, its detect end valve state premise be all this pipeline no matter pump
Whether start, all presence can make the driving force that liquid flows from input port toward delivery outlet, i.e. static pressure, if in the absence of sufficiently quiet
Pressure, these detection means will be unable to play a role." pressure type " and " flow-type " detection is this to need the inspection of certain static pressure
Survey mode, exist two it is very serious the problem of：One is must have that the condition of static pressure can be formed on pipeline, specific to reality
It is exactly must have enough positive differences in height between the input of pipeline and delivery outlet liquid level in border（That is input port liquid level is fully high
In delivery outlet liquid level）, otherwise can not be detected, this precondition significantly limit the applicable model of both detection methods
Enclose, because many times, not having the condition to form difference in height between the input port of liquid and delivery outlet liquid level, sometimes very
It is also lower than the position of delivery outlet to input port liquid level, not only without the positive discrepancy in elevation, the negative discrepancy in elevation is formd on the contrary, such as it is most of high
The fire cistern in floor room typically build ground in, thus fire water input port just than needing the delivery outlet position of fire water low very
It is many, the even low rice up to a hundred of story height, in this case, existing end valve detection means cannot effectively work.Its
Two be that existing detection means only relies on threshold decision detection, when pipeline has a small amount of seepage, inevitably results in system and " trembles
It is dynamic " because seepage makes pipeline pressure constantly reduce, when pipeline pressure because of lasting seepage causes pressure to be reduced to actuation threshold
During value, control device will take for end water valve and be opened, so that order pump startup, due at this moment end valve in fact
And be not switched on, pipeline pressure increases rapidly after pump startup, and control system detects pressure when reaching more than threshold value, makes pump close at once
Close, after pump is closed, because seepage is not off, therefore, the pressure on pipeline will again reduce and cause pump to be again started up, such as
This does not stop the abnormal recurrent state for allowing pump to be in " start-stop-start-stop ... " back and forth, and this frequently start stops not
A series of problems, such as waste of energy, noise pollution, power network impact only is brought, or even produces the accidents such as initiation overvoltage blast.Therefore,
Design is a kind of not to be needed the end valve state detection means that pipeline static pressure can work in reduction accident, improves equipment facility
Property and energy-conserving and environment-protective in terms of be respectively provided with highly important meaning.
The content of the invention
The technical problems to be solved by the invention are that overcome need be defeated in pipeline in existing end valve detection technique scheme
Having a drop to be formed between entrance and delivery outlet liquid level, static pressure could be detected and this detection is easily by phenomenons such as seepages
Interference formed " shake " the problem of there is provided it is a kind of without static pressure drive, be not easily susceptible to the extraneous factors such as seepage disturb it is new
Valve state sensor.The general principle of the novel valve state sensor is to pass through controlled prepressing device（Pre- press pump etc.）
It is intermittent to pipeline manufacture one can influence the precompressed driving force of the mechanical state of fluid in pipeline, pass through data analysis skill
Art carries out analyzing and judging in real time to the mechanical state of fluid in pipeline, and then realizes to end valve state（Unlatching/closing）
Detection.According to this principle, the present invention develops the prepressing type end valve state based on end dynamic data analytical technology
This brand-new sensing device of sensor.The structure of the sensing device mainly includes：1. the pre- press pump of micropower, 2. senses pick-up
Device（Including but not limited to flow sensor, pressure sensor and other it is any can be with the mechanics situation of fluid in signal piping
Single-sensor or some sensor assemblies）3. three parts of programmable controller, above-mentioned various pieces press Fig. 1 institutes
Show and connect and compose an organic whole, the organic whole of composition is run according to the work-based logic of design, realizes detection, its basic work
It is as logic：The pre- press pump of micropower manufactures precompression, the sensing pick-up under the control of programmable controller to pipeline
Device detects the mechanics situation of the fluid on the pipeline and transfers data to the programmable controller and analyzed in real time,
Because end valve is in the state of closing and unlatching, the mechanics situation of fluid is dramatically different in the pipeline（With in pipeline
Exemplified by pressure, main pump is not actuated, and when end valve is closed, pressure data will be same with startup/stopping of the pre- press pump of the micropower
Step rise, reduction；Main pump is not actuated, during the valve opening of end, because micropower precompressed pump discharge is relatively low, and the pressure in pipeline will
All the time close to 0；After main pump starts, end valve is closed instantaneously, and pressure data will rapidly rise）, the programmable controller
Gathered in real time by the mechanical state data to fluid in pipeline, and the data stored in data characteristics and database are special
Levy and be compared, you can judge the open/close states of end valve, pipeline supercharging/circulating pump is automatically controlled so as to realize.
Simultaneously as the novel sensor is not to carry out single threshold value judgement according to a sampled data and then make control instruction
, but comprehensive multi-index judgement is carried out according to the result of data analysis, therefore can effectively distinguish opening for valve
The disturbing factor such as closed state and seepage, effectively prevent the generation of anomalies such as " shakes ".
As shown in Figure 1, the prepressing type end valve state of the present invention based on end dynamic data analytical technology is passed
Sensor is to include the pre- press pump of 1. micropower, 2. sense pick-up device（Including but not limited to flow transmitter, pressure transmitter and its
The single transmitter for the mechanics status data that he is any to detect, gather fluid in pipeline or some transmitters combination unit）
3. programmable controller etc. constitute, the pre- press pump of micropower 1. with the sensing device 2. with the programmable controller 3.
Between have wire harness（Cable and（Or）Optical cable）3. connection, the programmable controller has opening for a signal output interface and main pump
Stop device is connected, and 3. 1. the pre- press pump of micropower powered with the programmable controller using D.C. regulated power supply.Upper electricity
Afterwards, 1. the pre- press pump of the micropower works under programmable controller control 3., makes the mechanical state of fluid in pipeline
Change, the sensing pick-up device is 2.（Including but not limited to flow transmitter, pressure transmitter and other any can examine
The single transmitter of the mechanics situation of fluid or some transmitters combination unit in survey, pick-up pipeline）Gather in the pipeline
The mechanics situation of fluid, and the data collected are sent to the programmable controller 3. carry out Treatment Analysis, it is described to compile
3. range controller makes the judgement of end valve opening/closing, and opening to pipeline main pump according to the variation tendency of these data
Stop device sends the signal for starting or closing down pump, and realization is automatically controlled to main pump.
The pre- press pump of micropower be 1. one can be with the small-power pump of frequent start-stop, in the control of the programmable controller
System is lower to work, and in practice, is connected on small-bore branch pipe on the pipeline of trandfer fluid, so as to manufacture precompression to main line.
2. the sensing pick-up device is that can in real time detect, gather pipeline hydraulics delta data and by these data
Send the programmable controller single transmitter 3. or the sensing pick-up device being made up of several transmitters to, it is and described
3. programmable controller connects and communicates, in practice, can select pressure sensor, flow sensor, one kind of vortex street sensor
Or multiple combinations.
The programmable controller be 3. one have Data Collection, analysis and arbitration functions, it is possible to according to judge to
Actuator（Such as pump machine）Instruction is sent, the calculation control device of necessary database storage capacity is provided simultaneously with, with micro- work(
1. the pre- press pump of rate senses pick-up device 2. connection communication with described, while and actuator（Pump machine）Interface.It is described to compile in practice
Range controller is selected with enough analog- and digital- input/output interfaces, power drive interface, possesses dynamic real time data point
Operational capability, the programmable controller of memory space needed for analysis.
Brief description of the drawings
Fig. 1：Prepressing type bottom valve door condition sensor architecture logic figure based on end dynamic data analytical technology：1. it is micro-
2. the pre- press pump of power senses pick-up device 3. programmable controller.
Fig. 2：The structure chart of prepressing type bottom valve door condition sensor embodiment 1 based on end dynamic data analytical technology：
1. 2. the pre- press pump of micropower senses pick-up device（2. -1 diffused silicon pressure transmitter, 2. -2 turbine flux transmitter）3. it can compile
Range controller.
Fig. 3：The structure chart of prepressing type bottom valve door condition sensor embodiment 2 based on end dynamic data analytical technology：
1. 2. the pre- press pump of micropower senses pick-up device（Turbine flux transmitter）3. programmable controller.
Embodiment
Embodiment 1：As shown in Fig. 2 the prepressing type end based on end dynamic data analytical technology described in the present embodiment
Valve state sensor by the pre- press pump of 1. micropower, 2. sense pick-up device（By 2. -1 diffused silicon pressure transmitter and 2. -2 whirlpool
Flow transmitter combination is taken turns to constitute）3. programmable controller is constituted, optimally, in the present embodiment, the micropower precompressed
Pump 1. from power be 3W, voltage be direct current 24V brushless centrifugal pump, the sensing pick-up device 2. from by range be 0 ~
100kPa diffused silicon pressure transmitters 2. -1 and range for 0 ~ 4m3/h turbine flux transmitter 2. -2 combine composition, it is described can
3. programmable controller selects the VHRCM4-V1 type hybrid domain programmable controllers of ONRUN brands, and the pre- press pump of micropower is 1.
3. it is connected with the programmable controller, the sensing pick-up device 2. middle diffused silicon pressure transmitter 2. -1 and turbine flow quantitative change
Send device 2. -2 to be 3. connected and communicate with the programmable controller respectively, the programmable controller 3. with actuator（Main pump）'s
Start stop apparatus is connected.1. two ends, to be connected compared with thin pipe and main line, constitute the sensing pick-up dress to the pre- press pump of micropower
Put diffused silicon pressure transmitter 2. 2. -1 and turbine flux transmitter 2. -2 be mounted in pipeline, the pre- press pump of micropower 1.,
Power supply of the sensing pick-up device 2. with the programmable controller 3. is powered using 24V dc sources, described micro- during work
1. the pre- press pump of power carries out intermittent start and stop according to the instruction of the programmable controller 3., and manufacture can cause pipe in pipeline
In road fluid mechanical state change reciprocal change driving force, the sensing pick-up device 2. in real time collection loine pressure and
3. the delta data of flow is simultaneously sent to the programmable controller, and 3. the programmable controller receives, analyzes from composition
Described to sense pick-up device 2. flow and pressure data, programmable controller is judged according to preset rules to valve state
（Preset rules are：Piping flow is close to 0, and loine pressure is dynamic with pre- press pump synchronous waves：End valve is closed, and main pump is not actuated；Pipe
Road flow is close to 0, and loine pressure is rapidly increased to full scale：End valve is closed, and main pump has been started up；Piping flow is relatively low, pipe
Road pressure is close to 0：End valve opening, main pump is not actuated；Piping flow is close to full scale, and loine pressure is steady in higher level
It is fixed：End valve opening, main pump starts, and " higher level ", " the threshold value standard close to 0 " etc. calibrates determination in practice）,
Programmable controller sends the instruction for starting or closing down main pump according to analysis result to main pump start stop apparatus, realizes to pipeline pump machine
Automatically control.
Embodiment 2：As shown in Fig. 2 the prepressing type end based on end dynamic data analytical technology described in the present embodiment
Valve state sensor by the pre- press pump of 1. micropower, 2. sense pick-up device（Turbine flux transmitter）3. programmable controller
Constitute, optimally, in the present embodiment, the pre- press pump of micropower 1. from power be 5W, voltage for direct current 24V it is brushless from
Heart pump, the sensing pick-up device selected range is 0 ~ 1m3/h turbine flux transmitter, and 3. the programmable controller is selected
The VHRM430-V1 type digital simulation programmable controllers of ONRUN brands, the pre- press pump of micropower 1. with the programmable control
3. device processed connects, and 3. the sensing pick-up device is connected and communicates with the programmable controller, and the programmable controller is 3.
With actuator（Main pump）Start stop apparatus connection.1. two ends compared with thin pipe and main line to connect for the pre- press pump of micropower, institute
Sensing pick-up device turbine flux transmitter 2. is stated to be mounted in pipeline, the pre- press pump of micropower 1., the sensing pick-up dress
The power supply 2. with the programmable controller 3. is put to power using 24V dc sources, during work, the pre- press pump of micropower 1. root
Intermittent start and stop are carried out according to the instruction of the programmable controller 3., manufacture can cause the mechanics of fluid in pipeline in pipeline
2. the driving force of the reciprocal change of state change, the sensing pick-up device gathers the delta data of loine pressure and flow in real time
And it is sent to the programmable controller 3., 3. the programmable controller receives, analyzes from the composition sensing pick-up dress
2. flow and pressure data are put, programmable controller is judged according to preset rules to valve state（Preset rules are：Pipeline
Flow is close to 0 and stably：End valve is closed；Piping flow is relatively low：End valve opening, main pump is not actuated；Piping flow connects
Nearly full scale：End valve opening, main pump starts, and " higher level ", " the threshold value standard close to 0 " etc. is calibrated in practice
It is determined that）, programmable controller is sent according to analysis result to main pump start stop apparatus starts or closes down the instruction of main pump, realizes to pipe
Road pump machine is automatically controlled.
Claims (5)
1. the prepressing type bottom valve door condition sensor based on end dynamic data analytical technology, it is characterised in that：1. it included
The pre- press pump of micropower, 2. sense pick-up device（Including but not limited to flow transmitter, pressure transmitter and other any can examine
Survey, gather the single transmitter or the combination unit of some transmitters of the mechanics status data of fluid in pipeline）3. it may be programmed
Controller etc. constitute, the pre- press pump of micropower 1. and it is described sensing pick-up device 2. with the programmable controller 3. between have
Wire harness（Cable and（Or）Optical cable etc.）Connection, the start and stop that 3. programmable controller has signal output interface and pipeline main pump are filled
Connection is put, 3. 1. the pre- press pump of micropower powered with the programmable controller using dc source；It is described micro- after startup
The instruction works of the pre- press pump of power 1. according to the programmable controller 3., the intermittent work of the pre- press pump of micropower 1. exists
Certain pressure is produced on pipeline, the sensing pick-up device is 2.（Including but not limited to flow transmitter, pressure transmitter and its
The combination unit of the single transmitter of his any mechanics situation that can monitor fluid in pipeline or some transmitters composition）Inspection
Survey, gather the mechanics situation of fluid in pipeline in the pipeline（By taking the pressure in pipeline as an example, main pump is not actuated, bottom valve
When door is closed, pressure data is by with the startup of the pre- press pump of the micropower/stopping synchronously rise, reduction；Main pump is not actuated, end
During valve opening, because micropower precompressed pump discharge is relatively low, the pressure in pipeline will be all the time close to 0；After main pump starts, end
Valve is closed instantaneously, and pressure data will rapidly rise）, and the data for reflecting these influences are sent to the programmable controller
3. analyzed, the programmable controller is gathered in real time by the mechanical state data to fluid in pipeline, and by number
It is compared according to feature and the data characteristics that is stored in database, you can judge the open/close states of end valve, it is described to compile
3. range controller sends certain signal according to judged result to the start stop apparatus of pipeline main pump, thus realize to pipeline supercharging/
Circulating pump is automatically controlled.
2. according to the prepressing type bottom valve door condition sensor based on end dynamic data analytical technology of the requirement of right 1, it is special
Levy and be：1. the pre- press pump of micropower is a small-power pump, is 3. connected with the programmable controller；In practice, with small
Bore pipeline is connected on the main pipeline of trandfer fluid, and " precompressed " operation is carried out to main line.
3. the prepressing type bottom valve door condition sensor based on end dynamic data analytical technology required according to right 1 or 2, its
It is characterised by：It is described sensing pick-up device be 2. can in real time detect, gather fluid in pipeline mechanics status data by one
3. the sensing pick-up device of individual or multiple transmitter compositions, be connected with the programmable controller；In practice, the sensing pick-up
2. device is arranged in pipeline.
4. sensed according to the prepressing type end valve state based on end dynamic data analytical technology of the requirement of right 1 or 2 or 3
Device, it is characterised in that：3. the programmable controller, which is one, has Data Collection, analysis and arbitration functions, it is possible to according to
Judge to actuator（Such as main pump in pipeline）Start stop apparatus send the control computing device of instruction, with the pre- press pump of the micropower
1. 2. connected with the sensing pick-up device, while and actuator（Pipeline main pump etc.）Start stop apparatus connection.
5. in practice, 3. the programmable controller controls the pre- press pump of micropower 1. to start, stop, together according to pre-set programs
When receive from the data that 2. gather of sensing pick-up device, and these data are cached, handles, judge, Ran Hougen
The instruction for starting or stoping main pump is sent to the start stop apparatus of actuator according to the judgement made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710460602.9A CN107228729A (en) | 2017-06-18 | 2017-06-18 | Prepressing type bottom valve door condition sensor based on end dynamic data analytical technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710460602.9A CN107228729A (en) | 2017-06-18 | 2017-06-18 | Prepressing type bottom valve door condition sensor based on end dynamic data analytical technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107228729A true CN107228729A (en) | 2017-10-03 |
Family
ID=59934968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710460602.9A Pending CN107228729A (en) | 2017-06-18 | 2017-06-18 | Prepressing type bottom valve door condition sensor based on end dynamic data analytical technology |
Country Status (1)
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| CN (1) | CN107228729A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111465835A (en) * | 2017-10-23 | 2020-07-28 | Avl排放测试系统有限责任公司 | Waste gas sampling system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111465835A (en) * | 2017-10-23 | 2020-07-28 | Avl排放测试系统有限责任公司 | Waste gas sampling system |
| CN111465835B (en) * | 2017-10-23 | 2023-06-27 | Avl排放测试系统有限责任公司 | Exhaust gas sampling system |
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Application publication date: 20171003 |