CN109975007A - Valve detection method and system - Google Patents
Valve detection method and system Download PDFInfo
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- CN109975007A CN109975007A CN201711429923.9A CN201711429923A CN109975007A CN 109975007 A CN109975007 A CN 109975007A CN 201711429923 A CN201711429923 A CN 201711429923A CN 109975007 A CN109975007 A CN 109975007A
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- 238000001514 detection method Methods 0.000 title claims abstract description 135
- 230000002159 abnormal effect Effects 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims description 25
- 230000003287 optical effect Effects 0.000 claims description 18
- 230000001953 sensory effect Effects 0.000 claims description 10
- 230000001939 inductive effect Effects 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 230000001419 dependent effect Effects 0.000 claims description 3
- 230000002463 transducing effect Effects 0.000 claims description 3
- 230000005856 abnormality Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 230000006698 induction Effects 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 description 17
- 238000009434 installation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 2
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- 229910052742 iron Inorganic materials 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Abstract
The invention discloses a kind of valve detection method and system, wherein method includes: periodically to send valve state switching command to valve, with control valve switch valve state, wherein valve is used to control the on-off of gas circuit；When the valve state of valve switches each time, the air-flow in gas circuit is incuded；When sensing air-flow, a detection signal for corresponding to current valve state is generated；Judge whether valve is abnormal according to the sum of total valve state switching times and the detection signal corresponding to each valve state.This method is by the switch state of the air-flow automatic identification valve in induction gas circuit, so that accurate automatically complete detection work, effectively save cost of labor improves working efficiency, effectively improves the reliability of valve detection.
Description
Technical field
The present invention relates to valve detection technical field, in particular to a kind of valve detection method and system.
Background technique
In the related technology, for the valve of gas meter, flow meter, valve is detected by valve detection tooling, when test, is surveyed
Multiple valves to be measured are consecutively connected on the connecting terminal of valve detection tooling by examination personnel, open the electricity of valve detection tooling
Source, the instruction of valve detection tooling periodicity sending open and close valve, tester observe the open and close state of valve, valve detection tooling
The current test total degree of liquid crystal screen display.When test total degree reaches estimated testing time, tester closes inspection
Tooling power supply is surveyed, test is terminated.
However, doing valve switch durable test using valve detection tooling, entire test process is wanted repeat number thousand times, test
Whole process need it is artificial participate in, and need to observe simultaneously multiple valves opening and closing state and record as a result, high labor cost,
Working efficiency is low and test result there are the deviations of certain probability.
Summary of the invention
The present invention is directed to solve at least to a certain extent it is above-mentioned in the related technology the technical issues of one of.
For this purpose, an aspect of of the present present invention purpose is to propose a kind of valve detection method.This method it is effectively save manually at
This, improves working efficiency, effectively improves the reliability of valve detection.
Another aspect of the present invention purpose is to propose a kind of valve detecting system.
To achieve the goals above, an aspect of of the present present invention embodiment discloses a kind of valve detection method, including following
Step: valve state switching command periodically is sent to valve, to control the valve transfer valve state, wherein described
Valve is used to control the on-off of gas circuit；When the valve state of the valve switches each time, the air-flow in the gas circuit is incuded；
When sensing the air-flow, a detection signal for corresponding to current valve state is generated；It is cut according to total valve state
The sum for changing number and the detection signal corresponding to each valve state judges whether the valve is abnormal.
The valve detection method of the embodiment of the present invention passes through the switch shape of the air-flow automatic identification valve in induction gas circuit
State, so that accurate automatically complete detection work, effectively save cost of labor improves working efficiency, effectively improves valve detection
Reliability.
In some instances, the valve state switching command include valve opening instruction and close valve instruction, it is described periodically
Valve state switching command is sent to valve, to control the valve transfer valve state, comprising: periodically to the valve
It sends valve opening instruction and closes valve instruction, to control the valve transfer as valve opening state and close valve state.
In some instances, described when sensing the air-flow, generate an inspection for corresponding to current valve state
Survey signal, comprising: if current valve state is valve opening state, when sensing the air-flow, generate described in corresponding to
One valve open state of valve opening state normally detects signal；If current valve state is close valve state, when sensing
When the air-flow, a valve off status anomaly detection signal for corresponding to the close valve state is generated.
In some instances, the total valve state switching times of the basis and the detection corresponding to each valve state
The sum of signal judges whether the valve is abnormal, comprising: after reaching total valve state switching times, counts the valve
Open state normally detects the quantity of signal and the quantity of the valve off status anomaly detection signal；Shape is opened according to the valve
State normally detects the ratio of the total valve opening number of quantity Zhan of signal and the quantity of the valve off status anomaly detection signal accounts for
Total ratio for closing valve number determines whether the valve is abnormal.
The embodiment of another aspect of the present invention discloses a kind of valve detecting system, comprising: gas circuit component, the gas circuit
Component includes gas circuit, and the gas circuit is used for transmission gas, is provided with valve in the gas circuit；Airflow sensor component, the air-flow
Inductive component is used for when the valve state of the valve switches each time, incudes the air-flow in the gas circuit；Detection components, institute
State detection components for detect the airflow sensor component sense have air-flow in the gas circuit when, generate correspond to it is current
Valve state a detection signal；Detecting tool, the detecting tool respectively with the valve, airflow sensor component and institute
It states detection components to be connected, periodically to send valve state switching command to valve, to control the valve transfer valve shape
State, and the valve is judged according to the sum of total valve state switching times and the detection signal corresponding to each valve state
Whether door is abnormal.
The valve detecting system of the embodiment of the present invention passes through the switch shape of the air-flow automatic identification valve in induction gas circuit
State, so that accurate automatically complete detection work, effectively save cost of labor improves working efficiency, effectively improves valve detection
Reliability.
In some instances, the valve state switching command includes valve opening instruction and pass valve instruction, the detecting tool
For periodically sending valve opening instruction to the valve and closing valve instruction, to control the valve transfer as valve opening state and pass
Valve state.
In some instances, the detection components are used for when current valve state is valve opening state, when detecting
When stating airflow sensor component and sensing the air-flow, generates and correspond to a valve open state of the valve opening state and normally detect
Signal, and when current valve state is close valve state, when detecting that the airflow sensor component senses the air-flow,
Generate a valve off status anomaly detection signal for corresponding to the close valve state.
In some instances, the detecting tool is used for after the valve state switching times for reaching total, counts the valve
Door open state normally detects the quantity of signal and the quantity of the valve off status anomaly detection signal, and according to the valve
Open state normally detects the ratio of the total valve opening number of quantity Zhan of signal and the number of the valve off status anomaly detection signal
Whether amount Zhan always closes valve described in the ratio-dependent of valve number abnormal.
In some instances, the airflow sensor component includes: gas transmission device, described for flowing through in the air-flow
When gas transmission device, driving force is generated under the action of the air-flow；Character wheel, the character wheel and the gas transmission device phase
Even, to be rotated under the dragging of the driving force.
In some instances, the character wheel is connected by gear with the gas transmission device.
In some instances, the detection components include: sensitive film, and the sensitive film is arranged on the character wheel, with
Change photosensitive angle with the rotation of the character wheel；Optical detection device, the optical detection device are oppositely arranged with the sensitive film,
For sending optical signal to the sensitive film, and when the sensitive film changes photosensitive angle with the rotation of the character wheel, inspection
Reflection signal is measured, and using the transmitting signal as a detection signal for corresponding to current valve state.
In some instances, the optical detection device is infrared light detection device.
In some instances, the detection components include: induced magnet, and the induced magnet is arranged on the character wheel,
To be rotated in the rotation with the character wheel；Sensory package, the sensory package are oppositely arranged with the induced magnet, in institute
When stating induced magnet and rotating with the rotation of the character wheel, the inductive signal of the induced magnet is detected, and by the transmitting
Signal is as a detection signal for corresponding to current valve state.
In some instances, the sensory package includes tongue tube counting component, hall sensor component and magneto-resistive transducing
Any one in device assembly.
In some instances, the detecting tool includes: display screen, for showing total valve state switching times, right
It should be in the sum of the detection signal of each valve state；Controller, the controller are connected with the display screen, are used for the period
Property send valve state switching command to valve, to control the valve transfer valve state, and count and correspond to each
The sum of the detection signal of valve state.
In some instances, the valve can be gas valve.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned or additional aspect and advantage combination following accompanying drawings of the invention will be to will become bright in the description of embodiment
It shows and is readily appreciated that, in which:
Fig. 1 is the flow chart of valve detection method according to an embodiment of the present invention；With
Fig. 2 is the flow chart of valve detection method according to an embodiment of the invention；
Fig. 3 is the structural schematic diagram of valve detecting system according to an embodiment of the present invention；And
Fig. 4 is valve installation procedure figure according to an embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or the element with same or like engineering.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
Valve detection method and system according to an embodiment of the present invention are described below in conjunction with attached drawing.
Fig. 1 is the flow chart of valve detection method according to an embodiment of the present invention.As shown in Figure 1, the valve detection method,
The following steps are included:
S1: valve state switching command periodically is sent to valve, with control valve switch valve state, wherein valve
Door is for controlling the on-off of gas circuit.
In one embodiment of the invention, valve state switching command includes valve opening instruction and closes valve instruction, periodically
Ground sends valve state switching command to valve, with control valve switch valve state, comprising: periodically opens to valve transmission
Valve instruction and pass valve instruction, are switched to valve opening state and close valve state with control valve.
As shown in Fig. 2, and start valve detecting tool firstly, switch valve number 2*X is arranged in valve detection tooling,
For example, valve detection tooling sends valve opening instruction, after receiving valve opening instruction, valve state is just switched to valve opening state；Or
Person's valve detection tooling, which is sent, closes valve instruction, and after receiving pass valve instruction, valve state is just switched to close valve state.It needs
Illustrating, switch valve number sum is not up to before 2*X, and after the coherent detection for having executed a valve state, to
Valve sends valve state switching command, and until testing time reaches 2*X, test is completed.
S2: when the valve state of valve switches each time, incude the air-flow in gas circuit.
For example, being that valve opening state can be incuded at this point, valve is opened by gas transmission device after valve state switching
Air-flow in gas circuit；If being close valve state after valve state switching, at this point, valve is not switched on, then induction is less than the gas in gas circuit
Stream.
S3: when sensing air-flow, a detection signal for corresponding to current valve state is generated.
In one embodiment of the invention, if current valve state is valve opening state, when sensing air-flow,
It generates and normally detects signal corresponding to a valve open state of valve opening state；If current valve state is close valve state,
Then when sensing air-flow, a valve off status anomaly detection signal for corresponding to close valve state is generated.
Specifically, as shown in Fig. 2, if current valve state is valve opening state, if valve opening, there is gas entrance
Valve lock chamber, gas transmission device rotation drive character wheel rotation, and infrared detecting device, which generates, counts pulse, and valve opening number adds
1, it is denoted as A1；If valve is not switched on, no gas enters valve lock chamber, and gas transmission device does not rotate, and character wheel is motionless, infrared
Detection device does not generate counting pulse, and count is incremented for valve exception error, is denoted as W1.Correspond to current valve state generating
A detection signal after, testing time subtracts 1.
In addition, if current valve state is close valve state, if valve opening, has gas to enter valve lock chamber,
Gas transmission device rotation drives character wheel rotation, and infrared detecting device, which generates, counts pulse, and count is incremented for valve exception error, note
For W2；If valve is not switched on, no gas enters valve lock chamber, and gas transmission device does not rotate, and character wheel is motionless, infrared detection
Device does not generate counting pulse, closes valve number and adds 1, is denoted as A2.Believe generating a detection for corresponding to current valve state
After number, testing time subtracts 1.
S4: judged according to the sum of total valve state switching times and the detection signal corresponding to each valve state
Whether valve is abnormal.
In one embodiment of the invention, after reaching total valve state switching times, statistics valve open state is just
The often quantity of detection signal and the quantity of valve off status anomaly detection signal；Signal is normally detected according to valve open state
The ratio of the total valve opening number of quantity Zhan and the quantity Zhan of valve off status anomaly detection signal always close the ratio of valve number, determine
Whether valve is abnormal.
Wherein, valve open state normally detects the ratio and valve off status exception of the total valve opening number of quantity Zhan of signal
The quantity Zhan of detection signal always closes the ratio of valve number, and those skilled in the art can be configured according to the actual situation, can such as set
When setting the ratio of the total valve opening number of quantity Zhan that valve open state normally detects signal and reaching 98% or more, valve is being determined just
Often；Or the quantity Zhan of valve off status anomaly detection signal always close the ratio of valve number lower than 2% and it is following when, determine valve
Normally, otherwise determine that valve is abnormal.
The valve detection method of the embodiment of the present invention passes through the switch shape of the air-flow automatic identification valve in induction gas circuit
State, so that accurate automatically complete detection work, effectively save cost of labor improves working efficiency, effectively improves valve detection
Reliability.
Fig. 3 is according to the structural schematic diagram of the valve detecting system of the embodiment of the present invention, as shown in figure 3, the valve detection
System 10 includes: gas circuit component 100, airflow sensor component 200, detection components 300 and detecting tool 400.
Wherein, gas circuit component 100 includes gas circuit, and gas circuit is used for transmission gas, valve 20 is provided in gas circuit.Airflow sensor
Component 200 is used for when the valve state of valve 101 switches each time, incudes the air-flow in gas circuit.Detection components 300 are used for
Detect that airflow sensor component 200 senses in gas circuit that generation corresponds to a detection of current valve state when having air-flow
Signal.Detecting tool 400 is connected with valve 101, airflow sensor component 200 and detection components 300 respectively, periodically to valve
Door 101 sends valve state switching command, with 101 switch valve state of control valve, and according to total valve state switching time
The sum of number and the detection signal corresponding to each valve state judges whether valve 101 is abnormal.
In one embodiment of the invention, valve 20 can be gas valve.
Specifically, as shown in figure 3, the gas circuit in gas circuit component 100 includes air inlet 101, valve lock chamber 102, rubber mat
103 and gas outlet 104, wherein air inlet 101 can be lifting structure, the gas that gas source 30 provides by air inlet 101 into
Enter valve 20；Valve lock chamber 102 is for placing valve 30, and cavity is equipped with transit joint 11, for drawing the valve of valve 20
Line draws 12 and goes out valve lock chamber 102；Rubber mat 103 is placed between valve lock chamber 102 and air inlet 104, is used for seal cavity,
Prevent gas from leaking.Wherein, transit joint 11 is fixed on valve lock chamber 102, one end connecting valve 20 in the cavity, one end
The connecting detection tooling 400 outside cavity.12 one end of valve lead connects transit joint, other end connecting detection tooling 400, detection
Tooling 400 is opened and closed by 12 control valve 20 of valve lead.
In one embodiment of the invention, as shown in figure 3, airflow sensor component 200 includes: gas transmission device 201
With character wheel 202.Wherein, gas transmission device 201 is used in air-flow gas coming through transmission device 201, under the action of air-flow
Generate driving force.Character wheel 202 is connected with gas transmission device 201, to rotate under the dragging of driving force.
Further, character wheel 202 is connected by gear with gas transmission device 201.
Specifically, mechanical rotation occurs for detecting air-flow, when having gas to flow through for gas transmission device 201, word is driven
202 rotation of wheel.Character wheel 202 is fixed on 102 outside of valve lock chamber, passes function device 201 with gas and is connected by gear.
In one embodiment of the invention, detection components 300 are used for when current valve state is valve opening state, when
When detecting that airflow sensor component 200 senses air-flow, generates and normally detected corresponding to a valve open state of valve opening state
Signal, and when current valve state is close valve state, when detecting that airflow sensor component 200 senses air-flow, generate
A valve off status anomaly detection signal corresponding to close valve state.
In specific example, as shown in figure 3, detection components 300 include: sensitive film 301 and optical detection device 302.Wherein,
Sensitive film 301 is arranged on character wheel 202, to change photosensitive angle in the rotation with character wheel 202；Optical detection device 302 and sense
Mating plate 301 is oppositely arranged, and for sending optical signal to sensitive film 301, and is changed in sensitive film 301 with the rotation of character wheel 202
When photosensitive angle, reflection signal is detected, and will emit signal as a detection signal for corresponding to current valve state.
In one embodiment of the invention, optical detection device 302 can be infrared light detection device.Infrared light detection dress
It sets and is fixedly mounted on bracket 303, issue infrared light, when light is reflected by sensitive film 301, generate and count pulse.Wherein, bracket
303 are fixed on the front side of valve lock chamber 102, for installing fixed optical detection device 302.
In one embodiment of the invention, detection components 300 include: induced magnet and sensory package.Wherein, incude magnetic
Iron is arranged on character wheel 202, to rotate in the rotation with character wheel 202；Sensory package, sensory package is opposite with induced magnet to be set
It sets, to detect the inductive signal of induced magnet, and signal will be emitted when induced magnet is rotated with the rotation of character wheel 202
As a detection signal for corresponding to current valve state.
Further, sensory package includes in tongue tube counting component, hall sensor component and magneto-resistive transducing device assembly
Any one.
In one embodiment of the invention, detecting tool 400 is used for after the valve state switching times for reaching total, system
Meter valve open state normally detects the quantity of signal and the quantity of valve off status anomaly detection signal, and opens shape according to valve
State normally detects the ratio of the total valve opening number of quantity Zhan of signal and the quantity Zhan of valve off status anomaly detection signal is always closed
Whether the ratio-dependent valve of valve number is abnormal.
In one embodiment of the invention, detecting tool 400 includes: display screen 401 and controller.Wherein, display screen
401 are used to show total valve state switching times, the sum for detecting signal corresponding to each valve state.Controller with
Display screen 401 is connected, for periodically sending valve state switching command to valve, with 20 switching valve gate-shaped of control valve
State, and count the sum for corresponding to the detection signal of each valve state.
In one embodiment of the invention, valve state switching command includes valve opening instruction and closes valve instruction, detects work
400 are filled for periodically sending valve opening instruction to valve and closes valve instruction, valve opening state is switched to control valve and closes valve
State.
Further, display screen 401 can be touch screen, be a part of detecting tool 400, while be also tester
Operating platform, settable testing time, show test result.
In addition, the system 10 of the embodiment of the present invention further include: infrared detecting device lead 13 and valve lead 14 to be measured.
Wherein, 13 one end of infrared detecting device lead connects optical detection device 302, and other end connecting detection tooling 400 is used
In the pulse signal that feedback optical detection device 302 generates.Valve lead 14 to be measured is drawn from valve 20, connecting valve 20 and mistake
Cross connector 11.
The operational process of the system of the embodiment of the present invention is as follows:
Detecting tool 400 controls valve 20 to be measured and opens and closes, and when opening valve 20, gas enters valve lock chamber
102, it is discharged from gas outlet 12 after gas gas coming through transmission device 201.Gas transmission device 201 drives character wheel 202 to rotate, word
Sensitive film 301 is housed, when character wheel 202 rotates, sensitive film 301 is rotated with it on wheel 202.Light detection dress on bracket 303
302 are set, 202 rotation situation of character wheel is judged by sensitive film 301.When character wheel 202 rotates, optical detection device 302 generates pulse letter
Number, when character wheel 202 stops operating, optical detection device 302 does not generate pulse signal.Optical detection device 302 and detecting tool 400 are logical
Cross the connection of infrared detecting device lead 13.The settable switch valve number of detecting tool 400, record valve opening number, valve opening are extremely secondary
Number closes valve number, closes valve frequency of abnormity.When testing time to be set reduces to 0 one by one, terminate this time to test, and just by valve
Normal on-off times, unusual switch number, master switch number are shown on display screen.
Further, it when using the system 10 of the embodiment of the present invention, needs now to be installed in place valve 20, such as Fig. 4 institute
Show, specific installation procedure are as follows:
(1) manually air inlet 101 is risen；
(2) valve 20 is put into valve lock chamber 102；
(3) the valve lead 12 on valve 20 is connected on transit joint 11；
(4) upper rubber mat 103 is padded on valve lock chamber 102；
(5) air inlet 101 is fallen；
(6) transit joint 11 in 102 outside of valve lock chamber is connected by valve lead 12 with detecting tool 400.
The valve detecting system of the embodiment of the present invention passes through the switch shape of the air-flow automatic identification valve in induction gas circuit
State, so that accurate automatically complete detection work, effectively save cost of labor improves working efficiency, effectively improves valve detection
Reliability.
It should be noted that the aforementioned explanation to valve detection embodiment of the method is also applied for the valve detection system
System, details are not described herein again.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (16)
1. a kind of valve detection method, which comprises the following steps:
Valve state switching command periodically is sent to valve, to control the valve transfer valve state, wherein the valve
Door is for controlling the on-off of gas circuit；
When the valve state of the valve switches each time, the air-flow in the gas circuit is incuded；
When sensing the air-flow, a detection signal for corresponding to current valve state is generated；
The valve is judged according to the sum of total valve state switching times and the detection signal corresponding to each valve state
Whether door is abnormal.
2. valve detection method according to claim 1, which is characterized in that the valve state switching command includes valve opening
Instruction and pass valve instruction, it is described periodically to send valve state switching command to valve, to control the valve transfer valve
State, comprising:
Valve opening instruction periodically is sent to the valve and closes valve instruction, to control the valve transfer as valve opening state and pass
Valve state.
3. valve detection method according to claim 2, which is characterized in that it is described when sensing the air-flow, it generates
A detection signal corresponding to current valve state, comprising:
If current valve state is valve opening state, when sensing the air-flow, generates and correspond to the valve opening state
A valve open state normally detect signal；
If current valve state is close valve state, when sensing the air-flow, generates and correspond to the close valve state
A valve off status anomaly detection signal.
4. valve detection method according to claim 3, which is characterized in that the total valve state switching times of the basis
Judge whether the valve is abnormal with the sum for the detection signal for corresponding to each valve state, comprising:
After reaching total valve state switching times, counts the valve open state and normally detect the quantity of signal and described
The quantity of valve off status anomaly detection signal；
According to the ratio and the valve off status of the total valve opening number of quantity Zhan that the valve open state normally detects signal
The quantity Zhan of anomaly detection signal always closes the ratio of valve number, determines whether the valve is abnormal.
5. a kind of valve detecting system characterized by comprising
Gas circuit component, the gas circuit component includes gas circuit, and the gas circuit is used for transmission gas, is provided with valve in the gas circuit；
Airflow sensor component, the airflow sensor component are used for when the valve state of the valve switches each time, incude institute
State the air-flow in gas circuit；
Detection components, the detection components are used to detect that the airflow sensor component senses in the gas circuit there is air-flow
When, generate a detection signal for corresponding to current valve state；
Detecting tool, the detecting tool is connected with the valve, airflow sensor component and the detection components respectively, with the period
Property to valve send valve state switching command, to control the valve transfer valve state, and according to total valve state
The sum of switching times and the detection signal corresponding to each valve state judges whether the valve is abnormal.
6. valve detecting system according to claim 5, which is characterized in that the valve state switching command includes valve opening
Instruction and pass valve instruction, the detecting tool is for periodically sending valve opening instruction and pass valve instruction to the valve, with control
Making the valve transfer is valve opening state and close valve state.
7. valve detecting system according to claim 6, which is characterized in that the detection components are used in current valve
When state is valve opening state, when detecting that the airflow sensor component senses the air-flow, generates and correspond to the valve opening
One valve open state of state normally detects signal, and when current valve state is close valve state, described when detecting
When airflow sensor component senses the air-flow, the valve off status abnormality detection letter for corresponding to the close valve state is generated
Number.
8. valve detecting system according to claim 7, which is characterized in that the detecting tool is for reaching total valve
After door state switching times, quantity and valve off status inspection extremely that the valve open state normally detects signal are counted
The quantity of signal is surveyed, and according to the ratio for the total valve opening number of quantity Zhan that the valve open state normally detects signal and described
Whether the quantity Zhan of valve off status anomaly detection signal always closes valve described in the ratio-dependent of valve number abnormal.
9. according to the described in any item valve detecting systems of claim 5-8, which is characterized in that the airflow sensor component packet
It includes:
Gas transmission device, for being generated under the action of the air-flow when the air-flow flows through the gas transmission device
Driving force；
Character wheel, the character wheel are connected with the gas transmission device, to rotate under the dragging of the driving force.
10. valve detecting system according to claim 9, which is characterized in that the character wheel passes through gear and the gas
Transmission device is connected.
11. valve detecting system according to claim 9, which is characterized in that the detection components include:
Sensitive film, the sensitive film is arranged on the character wheel, to change photosensitive angle in the rotation with the character wheel；
Optical detection device, the optical detection device are oppositely arranged with the sensitive film, for sending optical signal to the sensitive film,
And when the sensitive film changes photosensitive angle with the rotation of the character wheel, reflection signal is detected, and the transmitting is believed
Number as correspond to current valve state a detection signal.
12. valve detecting system according to claim 11, which is characterized in that the optical detection device is infrared light detection
Device.
13. valve detecting system according to claim 9, which is characterized in that the detection components include:
Induced magnet, the induced magnet is arranged on the character wheel, to rotate in the rotation with the character wheel；
Sensory package, the sensory package are oppositely arranged with the induced magnet, in the induced magnet with the character wheel
When rotating and rotating, the inductive signal of the induced magnet is detected, and using the transmitting signal as corresponding to current valve
One detection signal of door state.
14. valve detecting system according to claim 13, which is characterized in that the sensory package includes that tongue tube counts
Any one in component, hall sensor component and magneto-resistive transducing device assembly.
15. valve detecting system according to claim 5, which is characterized in that the detecting tool includes:
Display screen, for showing total valve state switching times, corresponding to the sum for detecting signal of each valve state；
Controller, the controller are connected with the display screen, for periodically sending valve state switching command to valve,
To control the valve transfer valve state, and count the sum for the detection signal for corresponding to each valve state.
16. valve detecting system according to claim 5, which is characterized in that the valve is gas valve.
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| CN201711429923.9A CN109975007A (en) | 2017-12-26 | 2017-12-26 | Valve detection method and system |
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| CN201711429923.9A CN109975007A (en) | 2017-12-26 | 2017-12-26 | Valve detection method and system |
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| CN111122148A (en) * | 2019-12-17 | 2020-05-08 | 重庆南方数控设备股份有限公司 | Method for detecting blood by prejudging working state of electromagnetic valve based on hemorheometer |
| CN113776800A (en) * | 2021-09-03 | 2021-12-10 | 长虹美菱股份有限公司 | Electric switching valve detection device and method thereof |
| CN114613120A (en) * | 2022-03-29 | 2022-06-10 | 新奥（中国）燃气投资有限公司 | Remote meter reading abnormity identification method and device |
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