CN118066369A - Stop valve with wear detection structure and detection method thereof - Google Patents
Stop valve with wear detection structure and detection method thereof Download PDFInfo
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- CN118066369A CN118066369A CN202410504559.1A CN202410504559A CN118066369A CN 118066369 A CN118066369 A CN 118066369A CN 202410504559 A CN202410504559 A CN 202410504559A CN 118066369 A CN118066369 A CN 118066369A
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- 238000001514 detection method Methods 0.000 title claims abstract description 41
- 230000000903 blocking effect Effects 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 11
- 229920000742 Cotton Polymers 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 8
- 230000004044 response Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000011946 reduction process Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 15
- 230000008569 process Effects 0.000 description 11
- 238000004891 communication Methods 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention discloses a stop valve with a wear detection structure and a detection method thereof, and relates to the technical field of stop valves. According to the invention, the wear detection function can be realized by installing the infrared range finders, the plurality of groups of infrared range finders detect the distances of the blocking plates, when the stop valve is used for a plurality of times, the blocking plates are worn, the distances detected by the infrared range finders are changed, and further the wear condition of the stop valve is judged, so that the wear detection function is realized.
Description
Technical Field
The invention relates to the technical field of stop valves, in particular to a stop valve with a wear detection structure and a detection method thereof.
Background
The shut-off valve is also called a shut-off valve, and belongs to a forced sealing type valve, so that when the valve is closed, pressure must be applied to the valve clack so as to force the sealing surface not to leak. When a medium enters the valve from the lower part of the valve clack, the resistance which needs to be overcome by the operation force is the friction force of the valve rod and the filler and the thrust generated by the pressure of the medium, and the force for closing the valve is larger than the force for opening the valve, so that the diameter of the valve rod is larger, otherwise, the valve rod is in a bending fault. The connection mode is divided into three types: flange connection, screw thread connection and welding connection. After the self-sealing valve appears, the medium flow direction of the stop valve is changed from the upper part of the valve clack to the valve cavity, at this time, under the action of medium pressure, the force for closing the valve is small, the force for opening the valve is large, and the diameter of the valve rod can be correspondingly reduced. At the same time, under the action of the medium, the valve in the form is also tighter. The valve 'three types' in China stipulates that the flow direction of the stop valve is uniformly from top to bottom. When the stop valve is opened, the opening height of the valve clack is 25-30% of the nominal diameter, and the flow reaches the maximum, which indicates that the valve has reached the full-open position. The fully open position of the shut-off valve is determined by the stroke of the valve flap.
The existing stop valve has the following defects:
1. Application document CN116642023A discloses a liquid hydrogen stop valve with internal leakage detection, and discloses the technical field of a stop valve. The liquid hydrogen stop valve with the internal leakage detection comprises a valve body, wherein a shell is fixedly arranged in the middle of the lower end of the valve body, an ultrasonic detector host is fixedly arranged in the middle of the shell, wires are fixedly arranged on two sides of the ultrasonic detector host, a section of wires, which is far away from the ultrasonic detector host, is fixedly connected with a contact sensor, a main controller is fixedly arranged on one side of the inside of the shell, an alarm module is fixedly arranged on one side, which is far away from the main controller, of the inside of the shell, a containing shell is fixedly arranged in the middle of the upper end of the valve body, a screw sleeve is fixedly arranged in the middle of the upper end of the containing shell, a screw rod is arranged on the inner thread of the screw sleeve, and the lower end of the screw rod stretches into a runner and is connected with a limiting plate. The liquid hydrogen stop valve has the function of detecting internal leakage in real time, has the effect of compensating abrasion loss of the valve plate and increases the functionality of the valve plate, the valve body in the patent document performs leakage detection through an ultrasonic instrument, and abrasion can occur in the stop valve along with the increase of the use frequency in the use process of the stop valve, so that the stop valve is damaged or the valve effect is poor, and the normal use is influenced;
2. Application CN114673703a discloses a shut-off valve, which discloses that "the shut-off valve comprises: the valve body is provided with a valve cavity, the valve cavity comprises an oil inlet section and an oil drain section, the valve body further comprises a liquid inlet, a liquid outlet and a pressure relief opening, each of the liquid inlet and the liquid outlet is communicated with the oil inlet section, the pressure relief opening is communicated with the oil drain section, the valve core is movably arranged in the valve cavity, at least part of the valve core is located between the oil inlet section and the oil drain section, the valve core can block the liquid inlet when located at a first position so as to block the liquid inlet and the liquid outlet, the valve core can release the liquid inlet when located at a second position so as to conduct the liquid inlet and the liquid outlet, the valve core is provided with a communication hole, the communication hole is communicated with the liquid inlet and the oil drain section, the pressure relief opening is used for communicating the oil drain section and the oil tank, the reset piece is used for driving the valve core to move from the second position to the first position, and the switch assembly is used for opening or closing the pressure relief opening so that the valve core releases or blocks the liquid inlet. The stop valve has the advantage of easy operation, most of the existing stop valves do not have the function of automatic adjustment, and the opening and closing sizes of the stop valves are required to be adjusted under the condition of large pressure change or large flow rate change so as to prevent the stop valves from being damaged;
3. The application document CN113623403A discloses a stop valve, which comprises a valve body, a valve rod and a connecting nut, wherein the connecting nut is in threaded connection with the valve body, the stop valve is provided with a first channel and a second channel, the valve body is provided with a valve cavity, at least part of the valve rod is positioned in the valve cavity, the connecting nut is in threaded connection with the valve body, and the connecting nut can directly or indirectly push the valve rod to move towards the valve body cavity relative to the valve body by being screwed in relative to the valve body so as to be communicated with the first channel and the second channel; the stop valve further comprises a reset element, the reset element is positioned in the valve cavity, and the reset element can push the valve rod to move towards the unscrewing direction of the connecting nut so as to cut off the communication between the first channel and the second channel; the valve rod of the stop valve is not required to be additionally adjusted, so that the assembly process and the adjustment of the valve rod are simplified, the stop valve in the prior art does not have the uploading function of the real-time data state, and the use state of the stop valve cannot be known in time by staff, so that the stop valve is inconvenient;
4. The application CN110094518a discloses a stop valve, which discloses "comprising a valve body, and a first extension portion, a second extension portion and a third extension portion extending outwards from the valve body, wherein the first extension portion has a first central axis, the second extension portion has a second central axis, and the first central axis and the second central axis are arranged in parallel, have a distance, and satisfy the following relation: d is more than 0 and less than D1, and D is more than 0 and less than D2; wherein D1 is the inner diameter of the first extension portion, D2 is the inner diameter of the second extension portion, and D is the distance between the first central axis and the second central axis. According to the stop valve provided by the invention, the path of the refrigerant fluid is not greatly turned, the flow is relatively smooth, and vortex is not easy to generate, so that the pressure loss is small, and the energy consumption is reduced; most of the existing stop valves are not provided with a leakage detection mechanism, when leakage occurs, the pipeline is often damaged or fluid is leaked, so that larger influence is caused, and the stop valve is inconvenient.
Disclosure of Invention
The present invention is directed to a stop valve with a wear detection structure and a detection method thereof, so as to solve the problems set forth in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the stop valve with the abrasion detection structure comprises a pipeline, a valve body and an infrared range finder, wherein the valve body is arranged on the outer wall of the pipeline, a control module is arranged on the inner bottom wall of the valve body, a plurality of infrared range finders are arranged on the outer wall of the pipeline in a penetrating mode, one end of each infrared range finder extends into the valve body, and the infrared range finders are electrically connected with the control module through wires;
the inside roof of valve body is equipped with two sets of storage chamber.
Preferably, two groups of flowmeters are installed on the inner bottom wall of the pipeline, the flowmeters are electrically connected with the control module through wires, and the blocking plates are installed on the inner top wall and the inner bottom wall of the pipeline.
Preferably, the cushion is installed at the top of valve body, and sealed chamber is installed at the top of cushion, and the valve rod is installed in the top penetration of sealed chamber, and the inside of pipeline is extended into to the bottom of valve rod, and the top of valve rod extends sealed chamber's top, and the sealing block is installed to the bottom of valve rod, and sealing block and blocking plate agree with, and the hand wheel is installed at the top of valve rod.
Preferably, the sealing thread is installed to the outer wall of valve rod, and the outer wall of valve rod is equipped with the gear groove, and the fixed block is installed to the inside diapire in sealed chamber, and the fixed block agrees with sealing thread, and driving motor is installed at the top of fixed block, and driving motor and control module electric connection, and driving gear is installed to driving motor's output, and driving gear and gear groove meshing.
The top of pipeline is installed leak detector, and leak detector's inside roof is installed two sets of detection springs, and the water absorbing plate is installed to the bottom of detection spring, and the bottom of water absorbing plate is connected with the cotton that absorbs water.
The inside roof of leak detector installs the conducting rod of L type, and the insulator spindle is installed at the top of water absorption board, and the conducting strip is installed to the outer wall of insulator spindle.
Preferably, the control module comprises a signal acquisition unit, a signal analysis unit, an automatic control unit, a data transmission unit and a warning unit;
The signal acquisition unit acquires fluid data of the pipeline part through an infrared range finder and a flowmeter, the measurement range of the infrared range finder is 10cm-80cm, the measurement error is 0.1-0.15cm, the working frequency is 50-80MHz, the flowmeter adopts differential pressure type, and the measurement formula is WhereinThe volume flow is m [ mu ] s, c is an outflow coefficient, dimensionless,For the purpose of expansion coefficient, dimensionless,Is the cross-sectional area of the pipeline, the unit is m,The unit is Pa for the differential pressure value before and after the pipeline,The density of the fluid is kg/m < w >, and the signals of the infrared range finder and the flowmeter are transmitted to the control module by adopting SENT signals;
The signal analysis unit filters and reduces noise of signals generated by the infrared range finder, the noise reduction process is as follows, and two groups of signals are randomly acquired and set as AndThe two groups of signals are time-spaced for 10-15 seconds, and the signals are synthesizedSignal is sent toCalculating the Fourier transform of the signal, taking the bilateral exponential function as an original signal, wherein the Fourier transform process is as follows,，；
The filtering process is as follows, using a FIR filter,The coefficients of the filter are well defined, the effectiveness and performance of the FIR filter depends mainly on these coefficients, MATLAB or other specialized tools are used to maintain accuracy in calculating the coefficients, the width of the input/output data is determined, the noise and resolution of the signal source are taken into account, and the data width is set to ensure that there is no excessive noise or distortion, the clock frequency is determined, it is determined from the maximum data rate, if the clock period is insufficient to process all the input data, it is necessary to increase the clock frequency or introduce a pipeline to process.
Preferably, the automatic control unit, the control module judges whether the stop valve needs to be adjusted according to the signal, and controls the driving motor to rotate forward or reversely;
The data transmission unit is used for encrypting and transmitting the data generated by the sensor, the encryption steps are as follows, the client generates an AES key and stores the AES key, the client encrypts the request transmission data by using the AES key, the client encrypts the AES key by using an RSA public key, then the value is put into a self-defined request head, the client initiates a request to the server, the server takes the self-defined request head value, then decrypts by using an RSA private key and takes the AES key, the server decrypts the request data by using the AES key, the server encrypts the response data by using the AES key, the server sends a response to the client, the client takes the server to encrypt the data and decrypts by using the previously stored AES key;
and the control module transmits a warning signal when the data returned by the sensor is abnormal.
Preferably, the working steps of the stop valve are as follows:
step S1, detecting the distances of the blocking plates by a plurality of groups of infrared range finders, and when the stop valve is used for a plurality of times, the blocking plates are worn, so that the detected distances of the infrared range finders are changed, further judging the wearing condition of the stop valve, and realizing the wearing detection function;
s2, driving a valve rod to rotate through a hand wheel, enabling the valve rod to drive a sealing block to contact with a blocking plate, opening and closing a valve body, and detecting the pressure of fluid in a pipeline through a flowmeter;
And S3, the control module transmits signals to the driving motor, the driving motor drives the driving gear to rotate, the driving gear drives the gear groove to rotate, and the gear groove drives the valve rod to rotate, so that the opening and closing of the stop valve are regulated.
Compared with the prior art, the invention has the beneficial effects that:
1. According to the invention, the wear detection function can be realized by installing the infrared range finders, the plurality of groups of infrared range finders detect the distances of the blocking plates, when the stop valve is used for a plurality of times, the blocking plates are worn, the distance detected by the infrared range finders is changed, and further the wear condition of the stop valve is judged, so that the wear detection function is realized;
2. according to the invention, automatic adjustment can be realized by installing the driving motor, the valve rod is driven to rotate by the hand wheel, the valve rod drives the sealing block to contact with the blocking plate, so that the valve body is opened and closed, the fluid pressure in the pipeline is detected by the flowmeter, the control module transmits a signal to the driving motor, the driving motor drives the driving gear to rotate, the driving gear drives the gear groove to rotate, and the gear groove drives the valve rod to rotate, so that the opening and closing of the stop valve are regulated;
3. The invention can monitor the working state and data parameters of the valve body in real time by installing the control module, and the real-time data feedback can ensure the instant update and transmission of the data, which is particularly important for application scenes needing to make decisions and respond quickly, and the real-time data feedback can help users to acquire the latest information in time so as to make accurate judgment and decisions, and the accuracy of the data can be ensured by real-time data feedback. Because the data is returned at the first time of generation, errors or loss of the data possibly occurring in the process of transmission or storage are avoided. This is of great importance for application scenarios requiring high precision data, such as scientific research, industrial manufacturing, etc.
4. The invention can detect signals when leakage occurs through the leakage detector, and transmits the signals back to the control terminal, so that the invention is convenient for workers to check and maintain in time, when leakage occurs, the water absorbing cotton and the water absorbing plate absorb water, the water absorbing cotton and the water absorbing plate become heavy after absorbing water, the detection spring is pulled to stretch, the insulating rod and the conducting plate are lowered, and meanwhile, the conducting plate is contacted with the conducting rod, and the circuit is communicated and transmits signals.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic elevational view of the present invention;
FIG. 3 is a schematic view of a seal cavity portion of the present invention;
FIG. 4 is a schematic view of a portion of the leak detector of the present invention.
In the figure: 1. a pipe; 2. a valve body; 3. a cushion pad; 4. sealing the cavity; 5. a valve stem; 6. a hand wheel; 7. an infrared range finder; 8. a control module; 9. a flow meter; 10. a blocking plate; 11. a sealing block; 12. sealing the thread; 13. a gear groove; 14. a fixed block; 15. a driving motor; 16. a drive gear; 17. a leak detector; 18. detecting a spring; 19. a water absorbing plate; 20. a water-absorbing cotton; 21. a conductive rod; 22. an insulating rod; 23. and a conductive sheet.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1: referring to fig. 1-4, an embodiment of the present invention is provided: the utility model provides a stop valve with wearing and tearing detection structure, includes pipeline 1, valve body 2, infrared range finder 7, valve body 2 is installed on the outer wall of pipeline 1, control module 8 is installed to the inside diapire of valve body 2, the outer wall of pipeline 1 runs through and installs a plurality of infrared range finders 7, and the one end of infrared range finders 7 extends into the inside of valve body 2, and infrared range finders 7 and control module 8 pass through wire electric connection;
Two sets of flowmeter 9 are installed to pipeline 1's inside diapire, and flowmeter 9 and control module 8 pass through wire electric connection, and baffle 10 is all installed to pipeline 1's inside roof and inside diapire.
The blotter 3 is installed at the top of valve body 2, and sealed chamber 4 is installed at the top of blotter 3, and valve rod 5 is installed in the top penetration of sealed chamber 4, and the inside of pipeline 1 is extended into to the bottom of valve rod 5, and the top of sealed chamber 4 is extended at the top of valve rod 5, and sealing block 11 is installed to the bottom of valve rod 5, and sealing block 11 and barrier board 10 agree with, and hand wheel 6 is installed at the top of valve rod 5.
Example 2: referring to fig. 1-4, an embodiment of the present invention is provided: the sealing thread 12 is installed to the outer wall of valve rod 5, and the outer wall of valve rod 5 is equipped with gear groove 13, and fixed block 14 is installed to the inside diapire of sealed chamber 4, and fixed block 14 agrees with sealing thread 12, and driving motor 15 is installed at the top of fixed block 14, and driving motor 15 and control module 8 electric connection, driving gear 16 is installed to driving motor 15's output, and driving gear 16 and gear groove 13 meshing.
In example 3, referring to fig. 4, a leak detector 17 is installed at the top of the pipe 1, two sets of detection springs 18 are installed on the inner top wall of the leak detector 17, a water absorbing plate 19 is installed at the bottom of the detection springs 18, a water absorbing cotton 20 is connected to the bottom of the water absorbing plate 19, an L-shaped conductive rod 21 is installed on the inner top wall of the leak detector 17, an insulating rod 22 is installed at the top of the water absorbing plate 19, a conductive sheet 23 is installed on the outer wall of the insulating rod 22, when a leak occurs, the water absorbing cotton 20 and the water absorbing plate 19 absorb moisture, the water absorbing cotton 20 and the water absorbing plate 19 become heavy after absorbing the moisture, the detection springs 18 are pulled to stretch, the insulating rod 22 and the conductive sheet 23 descend, and the conductive sheet 23 contacts the conductive rod 21, is in circuit communication, and a signal is transmitted.
Example 4: referring to fig. 1-4, an embodiment of the present invention is provided: the control module 8 comprises a signal acquisition unit, a signal analysis unit, an automatic control unit, a data transmission unit and a warning unit;
The signal acquisition unit acquires fluid data in the pipeline 1 through the infrared range finder 7 and the flowmeter 9, the measurement range of the infrared range finder 7 is 10cm-80cm, the measurement error is 0.1-0.15cm, the working frequency is 50-80MHz, the flowmeter 9 adopts differential pressure type, and the measurement formula is that WhereinThe volume flow is m [ mu ] s, c is an outflow coefficient, dimensionless,For the purpose of expansion coefficient, dimensionless,The cross-sectional area of the pipeline 1, the unit is m,The differential pressure value before and after the pipeline 1 is expressed as Pa,The density of the fluid is kg/m < w >;
The signal analysis unit filters and reduces noise of the signals generated by the infrared range finder 7, the noise reduction process is as follows, and two groups of signals are randomly collected and set as AndThe two groups of signals are time-spaced for 10-15 seconds, and the signals are synthesizedSignal is sent toCalculating the Fourier transform of the signal, taking the bilateral exponential function as an original signal, wherein the Fourier transform process is as follows,，；
The filtering process is as follows, using a FIR filter,The coefficients of the filter are well defined, the effectiveness and performance of the FIR filter depends mainly on these coefficients, MATLAB or other specialized tools are used to maintain accuracy in calculating the coefficients, the width of the input/output data is determined, the noise and resolution of the signal source are taken into account, and the data width is set to ensure that there is no excessive noise or distortion, the clock frequency is determined, it is determined from the maximum data rate, if the clock period is insufficient to process all the input data, it is necessary to increase the clock frequency or introduce a pipeline to process.
The automatic control unit is characterized in that a control module 8 judges whether the stop valve needs to be adjusted according to the signal and controls the driving motor 15 to rotate forward or reversely;
The data transmission unit is used for encrypting and transmitting the data generated by the sensor, the encryption steps are as follows, the client generates an AES key and stores the AES key, the client encrypts the request transmission data by using the AES key, the client encrypts the AES key by using an RSA public key, then the value is put into a self-defined request head, the client initiates a request to the server, the server takes the self-defined request head value, then decrypts by using an RSA private key and takes the AES key, the server decrypts the request data by using the AES key, the server encrypts the response data by using the AES key, the server sends a response to the client, the client takes the server to encrypt the data and decrypts by using the previously stored AES key;
And when the data returned by the sensor is abnormal, the warning unit transmits a warning signal by the control module 8.
Example 5: referring to fig. 1-4, an embodiment of the present invention is provided: the working steps of the stop valve are as follows:
Step S1, detecting the distances of the blocking plates 10 by a plurality of groups of infrared range finders 7, and when the stop valve is used for a plurality of times, the blocking plates 10 are worn, so that the detected distances of the infrared range finders 7 are changed, further judging the wearing condition of the stop valve, and realizing the wearing detection function;
Step S2, driving the valve rod 5 to rotate through the hand wheel 6, and driving the sealing block 11 to contact with the blocking plate 10 by the valve rod 5 to realize opening and closing of the valve body 2, and detecting the fluid pressure in the pipeline 1 through the flowmeter 9;
And S3, the control module 8 transmits signals to the driving motor 15, the driving motor 15 drives the driving gear 16 to rotate, the driving gear 16 drives the gear groove 13 to rotate, and the gear groove 13 drives the valve rod 5 to rotate, so that the opening and closing of the stop valve are regulated.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. A stop valve with wear detection structure, characterized in that: the automatic control valve comprises a pipeline (1), a valve body (2) and infrared range finders (7), wherein the valve body (2) is arranged on the outer wall of the pipeline (1), a control module (8) is arranged on the inner bottom wall of the valve body (2), a plurality of infrared range finders (7) are arranged on the outer wall of the pipeline (1) in a penetrating mode, one end of each infrared range finders (7) extends into the valve body (2), and the infrared range finders (7) are electrically connected with the control module (8) through wires;
a leak detector (17) is mounted on top of the pipe (1).
2. A shut-off valve with wear detection structure according to claim 1, wherein: two groups of flow meters (9) are arranged on the inner bottom wall of the pipeline (1), the flow meters (9) are electrically connected with the control module (8) through wires, and blocking plates (10) are arranged on the inner top wall and the inner bottom wall of the pipeline (1).
3. A shut-off valve with wear detection structure according to claim 1, wherein: the sealing device is characterized in that the top of the valve body (2) is provided with the buffer cushion (3), the top of the buffer cushion (3) is provided with the sealing cavity (4), the top of the sealing cavity (4) is provided with the valve rod (5) in a penetrating mode, the bottom of the valve rod (5) extends into the pipeline (1), the top of the valve rod (5) extends out of the top of the sealing cavity (4), the bottom of the valve rod (5) is provided with the sealing block (11), the sealing block (11) is matched with the blocking plate (10), and the top of the valve rod (5) is provided with the hand wheel (6).
4. A shut-off valve with wear detection structure according to claim 3, wherein: sealing thread (12) are installed to the outer wall of valve rod (5), and the outer wall of valve rod (5) is equipped with gear groove (13), and fixed block (14) are installed to the inside diapire of sealed chamber (4), and fixed block (14) agree with sealing thread (12), and driving motor (15) are installed at the top of fixed block (14), and driving motor (15) and control module (8) electric connection, and driving gear (16) are installed to the output of driving motor (15), and driving gear (16) and gear groove (13) meshing.
5. A shut-off valve with wear detection structure according to claim 1, wherein: two groups of detection springs (18) are installed on the inner top wall of the leakage detector (17), a water absorbing plate (19) is installed at the bottom of the detection springs (18), and water absorbing cotton (20) is connected to the bottom of the water absorbing plate (19).
6. A shut-off valve with wear detection structure according to claim 1, wherein: an L-shaped conductive rod (21) is arranged on the inner top wall of the leakage detector (17), an insulating rod (22) is arranged on the top of the water absorbing plate (19), and a conductive sheet (23) is arranged on the outer wall of the insulating rod (22).
7. A shut-off valve with wear detection structure according to claim 1, wherein: the control module (8) comprises a signal acquisition unit, a signal analysis unit, an automatic control unit and a data transmission unit;
The signal acquisition unit is used for acquiring fluid data in the pipeline (1) through the infrared range finder (7) and the flowmeter (9), wherein the measurement range of the infrared range finder (7) is 10cm-80cm, the measurement error is 0.1-0.15cm, the working frequency is 50-80MHz, the flowmeter (9) adopts differential pressure type, and signals of the infrared range finder (7) and the flowmeter (9) are transmitted to the control module (8) by adopting SENT signals.
8. A shut-off valve with wear detection structure according to claim 7, wherein: the signal analysis unit filters and reduces noise of signals generated by the infrared range finder (7), the noise reduction process is as follows, and two groups of signals are randomly acquired and set asAnd/>The time interval between two groups of signals is 10-15 seconds, and the synthesized signal/>Signal/>And calculating Fourier transform, taking the bilateral exponential function as an original signal, and carrying out noise reduction through the Fourier transform.
9. A shut-off valve with wear detection structure according to claim 7, wherein: the automatic control unit is characterized in that a control module (8) judges whether the stop valve needs to be adjusted according to the signal and controls the driving motor (15) to rotate forwards or reversely;
The data transmission unit encrypts and transmits data generated by the sensor, the encryption step is that a client generates an AES key and stores the AES key, the client encrypts request transmission data by using the AES key, the client encrypts the AES key by using an RSA public key, then the value is placed in a self-defined request header, the client initiates a request to a server, the server takes the self-defined request header value, then decrypts by using an RSA private key, takes the AES key, the server decrypts the request data by using the AES key, the server encrypts response data by using the AES key, the server sends a response to the client, the client takes the server to encrypt the data, decrypts by using the previously stored AES key, and the related data of the valve body is transmitted to the terminal.
10. A method of detecting a shut-off valve with a wear detection structure according to any one of claims 1-9, characterized in that the method of detecting a shut-off valve comprises the steps of:
Step S1, detecting the distances of the blocking plates (10) by a plurality of groups of infrared range finders (7), and when the stop valve is used for a plurality of times, the blocking plates (10) are worn, so that the distances detected by the infrared range finders (7) are changed, further judging the wear condition of the stop valve, and realizing the wear detection function;
step S2, driving a valve rod (5) to rotate through a hand wheel (6), and enabling the valve rod (5) to drive a sealing block (11) to be in contact with a blocking plate (10) so as to realize opening and closing of the valve body (2), and detecting the fluid pressure in the pipeline (1) through a flowmeter (9);
And S3, the control module (8) transmits signals to the driving motor (15), the driving motor (15) drives the driving gear (16) to rotate, the driving gear (16) drives the gear groove (13) to rotate, and the gear groove (13) drives the valve rod (5) to rotate, so that the opening and closing of the stop valve are regulated.
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| CN202410504559.1A CN118066369A (en) | 2024-04-25 | 2024-04-25 | Stop valve with wear detection structure and detection method thereof |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062971A (en) * | 1990-12-27 | 1992-07-22 | 燃烧工程有限公司 | Laser position indicator for valve stem |
| KR200364814Y1 (en) * | 2004-07-26 | 2004-10-15 | 배탄승 | Sensor Consolidation Self Diagnosis Valve |
| CN102182846A (en) * | 2011-06-16 | 2011-09-14 | 丁宫滨 | Valve rubber compensating type one-way valve |
| CN104903808A (en) * | 2013-02-05 | 2015-09-09 | 艾森曼欧洲公司 | Pressure regulator |
| JP2015184028A (en) * | 2014-03-20 | 2015-10-22 | 原子燃料工業株式会社 | Valve rod wastage diagnostic method for swing check valve |
| CN109237055A (en) * | 2018-09-06 | 2019-01-18 | 豆群儒 | A kind of block valve and its application method of natural gas wellhead |
| CN208831848U (en) * | 2018-05-16 | 2019-05-07 | 江西润家工程有限公司 | Air-conditioning special stop valve |
| CN214789366U (en) * | 2020-11-20 | 2021-11-19 | 中冀石化工程设计股份有限公司 | Leakage detection device for additionally-installed safety valve |
| CN115585299A (en) * | 2022-10-08 | 2023-01-10 | 浙江伯特利科技股份有限公司 | Valve with reveal and detect and alarming function |
-
2024
- 2024-04-25 CN CN202410504559.1A patent/CN118066369A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062971A (en) * | 1990-12-27 | 1992-07-22 | 燃烧工程有限公司 | Laser position indicator for valve stem |
| KR200364814Y1 (en) * | 2004-07-26 | 2004-10-15 | 배탄승 | Sensor Consolidation Self Diagnosis Valve |
| CN102182846A (en) * | 2011-06-16 | 2011-09-14 | 丁宫滨 | Valve rubber compensating type one-way valve |
| CN104903808A (en) * | 2013-02-05 | 2015-09-09 | 艾森曼欧洲公司 | Pressure regulator |
| JP2015184028A (en) * | 2014-03-20 | 2015-10-22 | 原子燃料工業株式会社 | Valve rod wastage diagnostic method for swing check valve |
| CN208831848U (en) * | 2018-05-16 | 2019-05-07 | 江西润家工程有限公司 | Air-conditioning special stop valve |
| CN109237055A (en) * | 2018-09-06 | 2019-01-18 | 豆群儒 | A kind of block valve and its application method of natural gas wellhead |
| CN214789366U (en) * | 2020-11-20 | 2021-11-19 | 中冀石化工程设计股份有限公司 | Leakage detection device for additionally-installed safety valve |
| CN115585299A (en) * | 2022-10-08 | 2023-01-10 | 浙江伯特利科技股份有限公司 | Valve with reveal and detect and alarming function |
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