CN114815725A - Vacuum pipeline monitoring and control system and monitoring and control method - Google Patents
Vacuum pipeline monitoring and control system and monitoring and control method Download PDFInfo
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- CN114815725A CN114815725A CN202110065789.9A CN202110065789A CN114815725A CN 114815725 A CN114815725 A CN 114815725A CN 202110065789 A CN202110065789 A CN 202110065789A CN 114815725 A CN114815725 A CN 114815725A
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- 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
- G05B19/054—Input/output
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- 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
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/11—Plc I-O input output
- G05B2219/1103—Special, intelligent I-O processor, also plc can only access via processor
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Abstract
The invention discloses a vacuum pipeline monitoring and control system and a monitoring and control method. Wherein, this system includes: the temperature acquisition module is used for acquiring the temperature value in the vacuum pipeline in real time; the vacuum acquisition module is used for acquiring the vacuum degree in the vacuum pipeline in real time; the noise acquisition module is used for acquiring a noise value in the vacuum pipeline in real time; the stress acquisition module is used for acquiring six-direction strain values in the vacuum pipeline in real time; and the control module is connected with the temperature acquisition module, the vacuum acquisition module, the noise acquisition module and the stress acquisition module, and is used for calculating the temperature change rate according to the temperature value acquired in real time, calculating the vacuum pressure rise rate according to the vacuum degree acquired in real time, comparing the calculated temperature change rate, the calculated vacuum pressure rise rate, the acquired noise value and the variation of the six-direction strain value acquired in preset time with respective corresponding threshold values, and controlling the vacuum pump or the re-pressurizing valve according to the comparison result and the current working condition of the vacuum pipeline.
Description
Technical Field
The invention relates to the technical field of control, in particular to a vacuum pipeline monitoring and control system and a monitoring and control method.
Background
The vacuum pipeline is an infrastructure for running of the magnetic suspension high-speed aerocar with the speed of 1000km/h, and is mainly provided with equipment such as an escape door, a vacuum pump, a pressure valve and the like, and the key equipment and the running environment state need to be monitored and controlled by a set of comprehensive monitoring and control system. The monitoring and control system needs to be capable of monitoring and analyzing the vacuum sealing capacity, the temperature deformation compensation capacity, the pipeline heat dissipation capacity and the like of a vacuum pipeline system, and meanwhile, needs to carry out remote safety control on equipment such as a vacuum pump and a complex pressure valve. However, there is no system and method available on the industrial control system market that can fulfill the monitoring and control functional requirements described above.
Disclosure of Invention
The invention provides a vacuum pipeline monitoring and control system and a monitoring and control method, which can solve the technical problems in the prior art.
The invention provides a vacuum pipeline monitoring and control system, wherein the system comprises:
the temperature acquisition module is used for acquiring the temperature value in the vacuum pipeline in real time;
the vacuum acquisition module is used for acquiring the vacuum degree in the vacuum pipeline in real time;
the noise acquisition module is used for acquiring a noise value in the vacuum pipeline in real time;
the stress acquisition module is used for acquiring six-direction strain values in the vacuum pipeline in real time;
and the control module is connected with the temperature acquisition module, the vacuum acquisition module, the noise acquisition module and the stress acquisition module, is used for calculating a temperature change rate according to a temperature value acquired in real time, calculating a vacuum pressure rise rate according to a vacuum degree acquired in real time, comparing the calculated temperature change rate, the calculated vacuum pressure rise rate, the acquired noise value and the variation of the six-direction strain value acquired in preset time with respective corresponding threshold values, and controlling a vacuum pump or a re-pressurization valve according to a comparison result and the current working condition of a vacuum pipeline.
Preferably, the control module controls the vacuum pump or the re-pressurization valve according to the comparison result and the current working condition of the vacuum pipeline comprises:
and under the condition that the comparison result is that any one of the calculated temperature change rate, the calculated vacuum pressure rise rate, the collected noise value and the variation of the six-direction strain value collected in the preset time is greater than the corresponding threshold value and the current working condition is the vacuumizing working condition, controlling the pumping speed value of the vacuum pump to be reduced by a first preset value.
Preferably, the control module controls the vacuum pump or the re-pressurization valve according to the comparison result and the current working condition of the vacuum pipeline comprises:
and under the condition that the comparison result is that any one of the calculated temperature change rate, the calculated vacuum pressure rise rate, the acquired noise value and the variation of the six-direction strain value acquired in the preset time is greater than the corresponding threshold value and the current working condition is the re-pressure working condition, controlling the opening degree of the re-pressure valve to reduce by a second preset value and controlling the re-pressure rate of the re-pressure valve to reduce by a third preset value.
Preferably, after the pumping speed value of the vacuum pump is controlled to be reduced by the first predetermined value, the control module is further configured to calculate a temperature change rate according to a temperature value acquired in real time, calculate a vacuum pressure rise rate according to a vacuum degree acquired in real time, compare the calculated temperature change rate, the calculated vacuum pressure rise rate, the acquired noise value, and a variation of the six-directional strain value acquired in a predetermined time with respective corresponding thresholds, and control the vacuum pump to stop working when any one of the calculated temperature change rate, the calculated vacuum pressure rise rate, the acquired noise value, and the variation of the six-directional strain value acquired in a predetermined time is greater than the corresponding threshold.
Preferably, the system further comprises an application server and a database server, wherein the application server is used for acquiring the temperature value acquired in real time, the vacuum degree acquired in real time, the noise value acquired in real time, the six-way strain value acquired in real time, the calculated temperature change rate, the calculated vacuum pressure rise rate and the variation of the six-way strain value acquired in a preset time from the control module and storing the acquired data in a preset format in the database server.
The invention also provides a vacuum pipeline monitoring and controlling method, wherein the method comprises the following steps:
collecting a temperature value in the vacuum pipeline in real time;
collecting the vacuum degree in the vacuum pipeline in real time;
collecting a noise value in the vacuum pipeline in real time;
acquiring six-direction strain values in a vacuum pipeline in real time;
the method comprises the steps of calculating a temperature change rate according to a temperature value acquired in real time, calculating a vacuum pressure rise rate according to a vacuum degree acquired in real time, comparing the calculated temperature change rate, the calculated vacuum pressure rise rate, an acquired noise value and a variation of a six-direction strain value acquired within preset time with respective corresponding threshold values, and controlling a vacuum pump or a re-pressure valve according to a comparison result and the current working condition of a vacuum pipeline.
Preferably, the controlling the vacuum pump or the re-pressurization valve according to the comparison result and the current working condition of the vacuum pipeline comprises:
and under the condition that the comparison result is that any one of the calculated temperature change rate, the calculated vacuum pressure rise rate, the collected noise value and the variation of the six-direction strain value collected in the preset time is greater than the corresponding threshold value and the current working condition is the vacuumizing working condition, controlling the pumping speed value of the vacuum pump to be reduced by a first preset value.
Preferably, the controlling the vacuum pump or the re-pressurization valve according to the comparison result and the current working condition of the vacuum pipeline comprises:
and under the condition that the comparison result is that any one of the calculated temperature change rate, the calculated vacuum pressure rise rate, the acquired noise value and the variation of the six-direction strain value acquired in the preset time is greater than the corresponding threshold value and the current working condition is the re-pressure working condition, controlling the opening degree of the re-pressure valve to reduce by a second preset value and controlling the re-pressure rate of the re-pressure valve to reduce by a third preset value.
Preferably, after controlling the pumping speed value of the vacuum pump to decrease by a first predetermined value, the method further comprises: calculating a temperature change rate according to a temperature value acquired in real time, calculating a vacuum pressure rise rate according to a vacuum degree acquired in real time, comparing the calculated temperature change rate, the calculated vacuum pressure rise rate, the acquired noise value and the variation of the six-direction strain value acquired in preset time with respective corresponding threshold values, and controlling the vacuum pump to stop working under the condition that any one of the calculated temperature change rate, the calculated vacuum pressure rise rate, the acquired noise value and the variation of the six-direction strain value acquired in preset time is greater than the corresponding threshold value.
Through above-mentioned technical scheme, can carry out real-time acquisition to temperature value, vacuum degree, noise value and six to the strain value in the vacuum pipe, and then can control vacuum pump or repressing valve according to the data of gathering and the current operating mode of vacuum pipe, realized the remote safety control of vacuum pump and repressing valve.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 illustrates a block diagram of a vacuum line monitoring and control system according to an embodiment of the present invention;
fig. 2 shows a flow chart of a vacuum line monitoring and control method according to an embodiment of the invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
FIG. 1 shows a block diagram of a vacuum line monitoring and control system according to an embodiment of the invention.
As shown in fig. 1, an embodiment of the present invention provides a vacuum pipeline monitoring and control system, where the system includes:
the temperature acquisition module 10 is used for acquiring the temperature value in the vacuum pipeline in real time;
the vacuum acquisition module 12 is used for acquiring the vacuum degree in the vacuum pipeline in real time;
the noise acquisition module 14 is used for acquiring a noise value in the vacuum pipeline in real time;
the stress acquisition module 16 is used for acquiring six-direction strain values in the vacuum pipeline in real time;
and the control module 18 is connected with the temperature acquisition module 10, the vacuum acquisition module 12, the noise acquisition module 14 and the stress acquisition module 16, and is used for calculating a temperature change rate according to a temperature value acquired in real time, calculating a vacuum pressure rise rate according to a vacuum degree acquired in real time, comparing the calculated temperature change rate, the calculated vacuum pressure rise rate, an acquired noise value and a variation of a six-way strain value acquired within a preset time with respective corresponding threshold values, and controlling a vacuum pump or a re-pressurization valve according to a comparison result and the current working condition of a vacuum pipeline.
The control module 18 may be a Programmable Logic Controller (PLC). The control module 18, the temperature acquisition module 10, the vacuum acquisition module 12, the noise acquisition module 14, and the stress acquisition module 16 may be connected via a field bus.
Through above-mentioned technical scheme, can carry out real-time acquisition to temperature value, vacuum degree, noise value and six to the strain value in the vacuum pipe, and then can control vacuum pump or repressing valve according to the data of gathering and the current operating mode of vacuum pipe, realized the remote safety control of vacuum pump and repressing valve.
According to an embodiment of the present invention, the controlling module 18 controls the vacuum pump or the re-pressurization valve according to the comparison result and the current working condition of the vacuum pipeline, including:
and under the condition that the comparison result is that any one of the calculated temperature change rate, the calculated vacuum pressure rise rate, the collected noise value and the variation of the six-direction strain value collected in the preset time is greater than the corresponding threshold value and the current working condition is the vacuumizing working condition, controlling the pumping speed value of the vacuum pump to be reduced by a first preset value.
Therefore, the damage to the vacuum pipeline and the equipment in the pipeline caused by too fast vacuumizing can be avoided, the safety of the pipeline and the equipment under the vacuum pipeline vacuumizing working condition can be ensured, and the execution efficiency of the operation is ensured.
Under the vacuum pumping working condition, the escape door and the repressing valve are both in a closed limiting state (namely in a completely closed state), and the vacuum pump is in an open state to execute vacuum pumping operation.
According to an embodiment of the present invention, the controlling module 18 controls the vacuum pump or the re-pressurization valve according to the comparison result and the current working condition of the vacuum pipeline, including:
and under the condition that the comparison result is that any one of the calculated temperature change rate, the calculated vacuum pressure rise rate, the acquired noise value and the variation of the six-direction strain value acquired in the preset time is greater than the corresponding threshold value and the current working condition is the re-pressure working condition, controlling the opening degree of the re-pressure valve to reduce by a second preset value and controlling the re-pressure rate of the re-pressure valve to reduce by a third preset value.
Therefore, damage to the vacuum pipeline and equipment in the pipeline due to over-fast repression can be avoided, the safety of the pipeline and the equipment under the vacuum pipeline repressing working condition is guaranteed, and the execution efficiency of operation is guaranteed.
And under the repressing working condition, the vacuum pump is in a stop state, and the repressing valve is in an open state to repressurize the pipeline.
According to an embodiment of the present invention, after controlling the pumping speed value of the vacuum pump to decrease by the first predetermined value, the control module is further configured to calculate a temperature change rate according to the temperature value acquired in real time, calculate a vacuum pressure rise rate according to the vacuum degree acquired in real time, compare the calculated temperature change rate, the calculated vacuum pressure rise rate, the acquired noise value, and a variation amount of the six-directional strain value acquired within a predetermined time with respective corresponding threshold values, and control the vacuum pump to stop operating in a case where any one of the calculated temperature change rate, the calculated vacuum pressure rise rate, the acquired noise value, and the variation amount of the six-directional strain value acquired within the predetermined time is greater than the corresponding threshold value.
That is, after the pumping speed is reduced, if there is a case where the calculated rate of change in temperature, the calculated rate of rise in vacuum pressure, the collected noise value, and the amount of change in the six-directional strain value collected within a predetermined time exceed the corresponding threshold values, the vacuum pump is controlled to stop working urgently to avoid damage to the piping and the equipment inside the piping.
According to one embodiment of the present invention, the temperature acquisition module 10 may be a temperature sensor, the vacuum acquisition module 12 may be a vacuum gauge, the noise acquisition module 14 may be a noise sensor, and the stress acquisition module 16 may be a strain gauge.
According to an embodiment of the present invention, the system may further include an application server for acquiring the temperature value acquired in real time, the vacuum degree acquired in real time, the noise value acquired in real time, the six-directional strain value acquired in real time, the calculated temperature change rate, the calculated vacuum pressure rise rate, and the variation amount of the six-directional strain value acquired in a predetermined time from the control module and storing the acquired data in a predetermined format in the database server.
According to one embodiment of the invention, the application server may include a data monitoring module, a visualization module, and a historical data module. The data monitoring module can be used for carrying out the following remote monitoring according to the acquired various data: real-time value monitoring, change curve monitoring, control process monitoring and the like of the vacuum pipeline. The visualization module may be configured to display the monitoring data and the monitoring process. The historical data module can be used for inquiring and displaying the historical data stored in the database server.
From this, through monitoring the data of gathering, can be according to the temperature analysis vacuum pipe heat-sinking capability in the vacuum pipe, according to the vacuum sealing ability of the pressure (vacuum) monitoring vacuum pipe in the vacuum pipe, according to the deformation value (the strain value) analysis vacuum pipe temperature deformation compensation ability of vacuum pipe, according to the noise value inside and outside the pipeline inside and outside the noise environment inside and outside the multiple operating mode of pipeline of inside and outside analysis vacuum pipe. Moreover, the data monitored by the vacuum pipeline can be visually displayed to an operator in charge of remote monitoring in real time through the visualization module.
The controller, the application server and the database server can be connected through Ethernet.
Fig. 2 shows a flow chart of a vacuum line monitoring and control method according to an embodiment of the invention.
As shown in fig. 2, an embodiment of the present invention provides a vacuum pipeline monitoring and control method, where the method includes:
s100, collecting a temperature value in the vacuum pipeline in real time;
s102, collecting the vacuum degree in the vacuum pipeline in real time;
s104, collecting a noise value in the vacuum pipeline in real time;
s106, collecting six-direction strain values in the vacuum pipeline in real time;
and S108, calculating a temperature change rate according to the temperature value acquired in real time, calculating a vacuum pressure rise rate according to the vacuum degree acquired in real time, comparing the calculated temperature change rate, the calculated vacuum pressure rise rate, the acquired noise value and the variation of the six-way strain value acquired in preset time with respective corresponding threshold values, and controlling a vacuum pump or a re-pressure valve according to the comparison result and the current working condition of the vacuum pipeline.
Through above-mentioned technical scheme, can carry out real-time acquisition to temperature value, vacuum degree, noise value and six to the strain value in the vacuum pipe, and then can control vacuum pump or repressing valve according to the data of gathering and the current operating mode of vacuum pipe, realized the remote safety control of vacuum pump and repressing valve.
It should be understood by those skilled in the art that although the monitoring and control method of the present invention is described in the above sequence in fig. 2, it is only exemplary and not intended to limit the present invention. For example, S100-S106 may be performed simultaneously.
According to one embodiment of the present invention, the controlling the vacuum pump or the re-pressurization valve according to the comparison result and the current working condition of the vacuum pipeline comprises:
and under the condition that the comparison result is that any one of the calculated temperature change rate, the calculated vacuum pressure rise rate, the collected noise value and the variation of the six-direction strain value collected in the preset time is greater than the corresponding threshold value and the current working condition is the vacuumizing working condition, controlling the pumping speed value of the vacuum pump to be reduced by a first preset value.
According to one embodiment of the present invention, the controlling the vacuum pump or the re-pressurization valve according to the comparison result and the current working condition of the vacuum pipeline comprises:
and under the condition that the comparison result is that any one of the calculated temperature change rate, the calculated vacuum pressure rise rate, the acquired noise value and the variation of the six-direction strain value acquired in the preset time is greater than the corresponding threshold value and the current working condition is the re-pressure working condition, controlling the opening degree of the re-pressure valve to reduce by a second preset value and controlling the re-pressure rate of the re-pressure valve to reduce by a third preset value.
According to an embodiment of the present invention, after controlling the pumping speed value of the vacuum pump to decrease by the first predetermined value, the method may further include: calculating a temperature change rate according to a temperature value acquired in real time, calculating a vacuum pressure rise rate according to a vacuum degree acquired in real time, comparing the calculated temperature change rate, the calculated vacuum pressure rise rate, the acquired noise value and the variation of the six-direction strain value acquired in preset time with respective corresponding threshold values, and controlling the vacuum pump to stop working under the condition that any one of the calculated temperature change rate, the calculated vacuum pressure rise rate, the acquired noise value and the variation of the six-direction strain value acquired in preset time is greater than the corresponding threshold value.
Fig. 2 is a method corresponding to the system described in fig. 1, and specific examples may refer to the description about the system in fig. 1, which is not repeated herein.
The system and the method have the advantages of high automation degree, high working efficiency, energy conservation, environmental protection, no pollution, reduction of labor intensity of operators and the like.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A vacuum line monitoring and control system, comprising:
the temperature acquisition module is used for acquiring the temperature value in the vacuum pipeline in real time;
the vacuum acquisition module is used for acquiring the vacuum degree in the vacuum pipeline in real time;
the noise acquisition module is used for acquiring a noise value in the vacuum pipeline in real time;
the stress acquisition module is used for acquiring six-direction strain values in the vacuum pipeline in real time;
and the control module is connected with the temperature acquisition module, the vacuum acquisition module, the noise acquisition module and the stress acquisition module, is used for calculating a temperature change rate according to a temperature value acquired in real time, calculating a vacuum pressure rise rate according to a vacuum degree acquired in real time, comparing the calculated temperature change rate, the calculated vacuum pressure rise rate, the acquired noise value and the variation of the six-direction strain value acquired in preset time with respective corresponding threshold values, and controlling a vacuum pump or a re-pressurization valve according to a comparison result and the current working condition of a vacuum pipeline.
2. The system of claim 1, wherein the control module controls the vacuum pump or the re-pressurization valve according to the comparison result and the current working condition of the vacuum pipeline comprises:
and under the condition that the comparison result is that any one of the calculated temperature change rate, the calculated vacuum pressure rise rate, the collected noise value and the variation of the six-direction strain value collected in the preset time is greater than the corresponding threshold value and the current working condition is the vacuumizing working condition, controlling the pumping speed value of the vacuum pump to be reduced by a first preset value.
3. The system of claim 1, wherein the control module controls the vacuum pump or the re-pressurization valve according to the comparison result and the current working condition of the vacuum pipeline comprises:
and under the condition that the comparison result is that any one of the calculated temperature change rate, the calculated vacuum pressure rise rate, the acquired noise value and the variation of the six-direction strain value acquired in the preset time is greater than the corresponding threshold value and the current working condition is the re-pressure working condition, controlling the opening degree of the re-pressure valve to reduce by a second preset value and controlling the re-pressure rate of the re-pressure valve to reduce by a third preset value.
4. The system of claim 2, wherein after controlling the pumping rate value of the vacuum pump to decrease by the first predetermined value, the control module is further configured to calculate a temperature change rate from the real-time collected temperature values, calculate a vacuum pressure rise rate from the real-time collected vacuum degrees, compare the calculated temperature change rate, the calculated vacuum pressure rise rate, the collected noise value, and a change amount of the six-way strain value collected within a predetermined time with respective corresponding threshold values, and control the vacuum pump to stop operating if any one of the calculated temperature change rate, the calculated vacuum pressure rise rate, the collected noise value, and the change amount of the six-way strain value collected within the predetermined time is greater than the corresponding threshold value.
5. The system of any one of claims 1-4, further comprising an application server and a database server, wherein the application server is configured to obtain the real-time collected temperature values, the real-time collected vacuum levels, the real-time collected noise values, the real-time collected six-way strain values, the calculated temperature change rate, the calculated vacuum pressure rise rate, and the variation amount of the six-way strain values collected within a predetermined time from the control module and store the obtained data in a predetermined format in the database server.
6. A vacuum pipeline monitoring and control method is characterized by comprising the following steps:
collecting a temperature value in the vacuum pipeline in real time;
collecting the vacuum degree in the vacuum pipeline in real time;
collecting a noise value in the vacuum pipeline in real time;
acquiring six-direction strain values in a vacuum pipeline in real time;
the method comprises the steps of calculating a temperature change rate according to a temperature value acquired in real time, calculating a vacuum pressure rise rate according to a vacuum degree acquired in real time, comparing the calculated temperature change rate, the calculated vacuum pressure rise rate, an acquired noise value and a variation of a six-direction strain value acquired within preset time with respective corresponding threshold values, and controlling a vacuum pump or a re-pressure valve according to a comparison result and the current working condition of a vacuum pipeline.
7. The method of claim 6, wherein controlling the vacuum pump or the re-pressurization valve according to the comparison result and the current operating condition of the vacuum pipe comprises:
and under the condition that the comparison result is that any one of the calculated temperature change rate, the calculated vacuum pressure rise rate, the collected noise value and the variation of the six-direction strain value collected in the preset time is greater than the corresponding threshold value and the current working condition is the vacuumizing working condition, controlling the pumping speed value of the vacuum pump to be reduced by a first preset value.
8. The method of claim 6, wherein controlling the vacuum pump or the re-pressurization valve according to the comparison result and the current operating condition of the vacuum pipe comprises:
and under the condition that the comparison result is that any one of the calculated temperature change rate, the calculated vacuum pressure rise rate, the acquired noise value and the variation of the six-direction strain value acquired in the preset time is greater than the corresponding threshold value and the current working condition is the re-pressure working condition, controlling the opening degree of the re-pressure valve to reduce by a second preset value and controlling the re-pressure rate of the re-pressure valve to reduce by a third preset value.
9. The method of claim 7, wherein after controlling the pumping rate value of the vacuum pump to decrease by the first predetermined value, the method further comprises: calculating a temperature change rate according to a temperature value acquired in real time, calculating a vacuum pressure rise rate according to a vacuum degree acquired in real time, comparing the calculated temperature change rate, the calculated vacuum pressure rise rate, the acquired noise value and the variation of the six-direction strain value acquired in preset time with respective corresponding threshold values, and controlling the vacuum pump to stop working under the condition that any one of the calculated temperature change rate, the calculated vacuum pressure rise rate, the acquired noise value and the variation of the six-direction strain value acquired in preset time is greater than the corresponding threshold value.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110065789.9A CN114815725A (en) | 2021-01-19 | 2021-01-19 | Vacuum pipeline monitoring and control system and monitoring and control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110065789.9A CN114815725A (en) | 2021-01-19 | 2021-01-19 | Vacuum pipeline monitoring and control system and monitoring and control method |
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| CN114815725A true CN114815725A (en) | 2022-07-29 |
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