CN115812807B - Heat energy circulation system for roller fixation machine - Google Patents
Heat energy circulation system for roller fixation machine Download PDFInfo
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- CN115812807B CN115812807B CN202211596426.9A CN202211596426A CN115812807B CN 115812807 B CN115812807 B CN 115812807B CN 202211596426 A CN202211596426 A CN 202211596426A CN 115812807 B CN115812807 B CN 115812807B
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Abstract
The invention belongs to the technical field of tea manufacturing, and particularly relates to a heat energy circulation system of a roller enzyme deactivating machine. The filter screen sets up the air intake at the fan, and the entry of leading the takeover communicates with the export of fan, and the air outlet of leading the takeover extends to the cylinder inner chamber, resonance processing system can judge the unusual resonance of fan and leading the takeover and eliminate resonance. The resonance treatment system comprises a vibration monitoring module, a blockage treatment module and a resonance elimination module, wherein the vibration monitoring module is electrically connected with the blockage treatment module to start the blockage treatment module, and the blockage treatment module is connected with the resonance elimination module to start the resonance elimination module. The invention can judge the abnormal resonance of the fan and the guide pipe and eliminate the resonance through the resonance processing system, and can solve the abnormal resonance problem and the abnormal noise problem of the heat energy circulation system in the working process of the roller enzyme deactivating machine.
Description
Technical Field
The invention belongs to the technical field of tea manufacturing, and particularly relates to a heat energy circulation system for a roller enzyme deactivating machine.
Background
The main purpose of fixation is to inhibit the enzymatic oxidation of tea polyphenol and the like in fresh leaves by destroying and passivating the oxidase activity in the fresh leaves at high temperature, and prevent the discoloration in the drying process. Meanwhile, the green odor is dispersed, and the formation of good aroma is promoted. The enzyme deactivation machine adopts a microwave enzyme deactivation machine, a roller enzyme deactivation machine, a gas enzyme deactivation machine and a high-temperature air enzyme deactivation machine. The invention relates to a fixation machine, which is a roller fixation machine, and comprises a roller box, a roller and a heating device, wherein the heating device heats the rotating roller by a fire, so as to achieve the fixation purpose. The present cylinder machine of completing is like a even hot cylinder machine of completing of patent number CN206238262U, including heating device, cylinder case, the cylinder is located the cylinder case, and the cylinder includes pan feeding mouth and discharge gate, still includes even heat facility, even heat facility includes: a draft tube, a tail pipe and a fan for pumping out the hot air from the roller box and conveying the hot air into the draft tube; the fan is communicated with the roller box and the draft tube; the draft tube is positioned in the roller box, the tail is connected with the draft tube, the front end is communicated with the draft tube, and the tail end is positioned in the feed inlet of the roller. The air with waste heat is conveyed into the roller through the draft tube, so that the heating is more uniform; and secondly, the draft tube is positioned in the heating chamber of the roller box, so that the heat exchange of the draft tube is low, and the waste heat loss is small.
The roller fixation machine can circulate heat energy of the fixation machine, the fan is internally provided with the multi-wing fan, but the fan can suck sundries when air flows circulate, so that the sundries enter the roller through the draft tube and the tail connecting tube and are mixed with tea leaves, the cleanliness of the tea leaves is affected, a filter screen capable of filtering the sundries can be added at an air inlet of the fan, if the filter screen is arranged at an air outlet, the impurities are easily attached to the multi-wing fan, and the filter screen is preferably arranged at the air inlet. The fan housing has natural frequency, in order to prevent resonance caused by the same vibration frequency generated by the rotation of the multi-wing fan in the working process as the natural frequency of the fan, the natural frequency of the fan housing is deliberately set outside the vibration frequency variation range of the multi-wing fan in the working process in design, so that the fan housing and the fan housing cannot generate resonance under normal conditions. However, when a lot of impurities are accumulated on the filter screen to change the natural frequency of the fan housing, resonance may occur, so that the multi-wing fan and the fan housing generate large vibration and generate large noise, and therefore, the problem needs to be solved. In addition, the multi-wing fan rotates and generates noise under the interaction of the multi-wing fan and the air flow, the air flow flowing in the ventilation pipe generates a circulating sound field, the circulating sound field has natural frequency, and when the frequency of the multi-wing fan sound field is the same as that of the circulating sound field, resonance is generated, so that the multi-wing fan and the fan shell generate larger noise and vibration, and the problem needs to be solved.
Disclosure of Invention
The invention aims at solving the technical problems, and provides a heat energy circulation system for a roller enzyme deactivation machine, so as to achieve the effect of solving the abnormal resonance problem and the abnormal noise problem of the heat energy circulation system in the working process of the roller enzyme deactivation machine.
In view of the above, the present invention provides a heat energy circulation system of a roller enzyme deactivating machine, comprising:
the fan comprises a shell and an inner cavity surrounded by the shell, a multi-wing fan is arranged in the inner cavity, the fan comprises an air inlet and an air outlet, and the air inlet of the fan is arranged in a heating chamber of the roller enzyme deactivating machine;
the inner cavity of the guide connecting pipe is hollow, the two ends of the guide connecting pipe are respectively provided with an inlet and an air outlet, the air outlet is provided with an air control plate, and the opening and closing angle of the air control plate can control the air outlet size of the air outlet;
the filter screen is provided with filter holes;
the resonance treatment system comprises a vibration monitoring module, a blockage treatment module and a resonance elimination module, wherein the vibration monitoring module is electrically connected with the blockage treatment module to start the blockage treatment module, and the blockage treatment module is connected with the resonance elimination module to start the resonance elimination module;
the filter screen is arranged at the air inlet of the fan, the inlet of the guide connection pipe is communicated with the outlet of the fan, the air outlet of the guide connection pipe extends to the inner cavity of the roller, and the resonance processing system can judge abnormal resonance of the fan and the guide connection pipe and eliminate the resonance.
In the technical scheme, the resonance processing system can judge the abnormal resonance of the fan and the guide pipe and eliminate the resonance, and can solve the abnormal resonance problem and the abnormal noise problem in the working process of the roller enzyme-deactivating machine.
Further, the vibration monitoring module comprises a vibration sensor, wherein the vibration sensor is used for detecting abnormal resonance, and the signal of the vibration sensor can enable the blockage processing module to be started.
Further, the occlusion handling module includes:
the data acquisition module can acquire actual measurement torque current of the fan when the air outlets are different in air outlet size;
the primary judging module is used for comparing the difference value between the measured torque currents and primarily judging whether the filter screen is blocked or not;
the final judging module is used for comparing the actual measurement torque currents with different air-out sizes with the preset standard torque currents with corresponding air-out sizes after the initial judging module preliminarily judges that the filter screen is blocked, and secondarily judging whether the filter screen is blocked or not;
and the cleaning device is used for cleaning the filter screen after the final judging module judges that the filter screen is blocked.
Further, the resonance eliminating module comprises a baffle rod and a driving piece, wherein the driving piece can drive the baffle rod to be arranged above the air inlet of the fan or arranged at the side part of the air inlet.
Further, the driving piece comprises a motor and a connecting rod, the output end of the motor is fixedly connected with one end of the connecting rod in the circumferential direction, the other end of the connecting rod is higher than the air inlet and is fixedly connected with a baffle rod in mutually perpendicular mode, the connecting rod is parallel to the axis of the multi-wing fan, and the baffle rod can sweep above the air inlet when rotating.
Further, the resonance processing method of the resonance processing system includes the following steps:
s1, carrying out fixation work on a fan of a fixation machine under the air supply power and the rotating speed which meet the requirements of tea;
step S2, monitoring whether abnormal vibration exists by a vibration sensor, if no abnormal vibration exists, normally executing the fixation work by the fixation machine, and if abnormal vibration is detected, starting a blockage processing module;
s3, analyzing the cause of the abnormal vibration by the blockage processing module, judging whether a filter screen of the air inlet is blocked, and if the filter screen is blocked by the analysis and judgment, removing the blocking object by the cleaning device; if the analysis judges that the filter screen is not blocked, the resonance elimination module executes vibration elimination operation on resonance of the sound field of the multi-wing fan and the airflow circulation sound field in the ventilation pipe;
and S4, repeating the step S2 after the step S3 is completed and the preset time interval T is operated.
According to the technical scheme, by the aid of the processing method, whether the cause of abnormal vibration is blockage of the filter screen or not can be judged, and blockage can be removed through the cleaning device. The filter screen is accumulated with more sundries to change the natural frequency of the fan shell, so that resonance with the multi-wing fan can be generated, and therefore, when the filter screen is judged to be blocked, the filter screen is cleaned to restore the designed natural frequency of the fan shell, and resonance between the shell and the multi-wing fan, which is generated by the blockage of the filter screen, is eliminated. In addition, if abnormal vibration is not generated due to the blockage of the filter screen, the resonance elimination module executes vibration elimination operation on the resonance of the sound field, so that the resonance generated by the sound field of the multi-wing fan and the flow-through sound field in the flow-through pipe is eliminated, and the method for solving the abnormal vibration and noise under the double-pipe condition can enable the heat energy circulation system to work more reliably.
Further, the specific steps of the blockage treatment module are as follows:
step S3.1: obtaining data, namely obtaining actually measured torque currents of the fans at different air outlet sizes of the air outlets through a data obtaining module;
step S3.2: initially judging, namely comparing each measured torque current, and initially judging that the filter screen is blocked when the difference value of each measured torque current is smaller than 10%, otherwise, judging that the filter screen is not blocked;
step S3.3: finally judging, after the filter screen is primarily judged to be blocked, comparing the actually measured torque current of the air outlet size with the preset standard torque current of the corresponding air outlet size, wherein the preset standard torque current is in a numerical range, if each actually measured torque current is smaller than the preset standard torque current corresponding to the corresponding air outlet size, finally determining that the filter screen is blocked, otherwise, judging that the filter screen is not blocked;
step S3.4: and when the step S3.3 finally determines that the filter screen is blocked, the cleaning device cleans the filter screen.
In this technical scheme, under the condition that the filter screen is blockked up, under the condition that the filter screen does not have the jam, when the fan was operated, the difference of air-out size of air outlet can make fan actual measurement torque current also different, and under the condition that the filter screen is blockked up, the influence of air-out size of air outlet to fan actual measurement torque current is then unobvious. Under the condition that the filter screen is blocked, the actually measured torque current of the fan is smaller than an initial value, so that whether the filter screen is blocked or not can be judged twice.
Further, after the filter screen is judged not to be blocked, the vibration removing operation of the resonance eliminating module is as follows: the motor is started to drive the connecting rod to rotate by the output end so as to enable the baffle rod to rotate, and when the baffle rod sweeps to the upper part of the air inlet and points to the axis of the multi-wing fan, the motor is stopped, and the baffle rod penetrates through the standing wave sound field of the air inlet to cross with the antinode region so as to destroy the resonance state.
In the technical scheme, resonance occurs when the sound field frequency of the multi-wing fan with multi-wing fan noise is matched with the natural frequency of the circulating sound field of the airflow in the ventilation pipe, a standing wave sound field is generated at the air inlet, an antinode region and a node region are formed at the air inlet, and when the baffle rod rotates to the upper part of the air inlet, the baffle rod can intersect with the antinode region, so that the air pressure of the antinode region becomes unbalanced, and the resonance state is destroyed.
Further, the two groups of actually measured torque currents respectively correspond to actually measured torque currents when the opening and closing angles of the air outlet air control plate are the largest and the opening and closing angles of the air outlet air control plate are the smallest.
Further, it is necessary to determine the value range of the preset standard torque current of the damper at different opening and closing angles before step S3.1.
The beneficial effects of the invention are as follows:
1. the resonance processing system can judge the abnormal resonance of the fan and the guide pipe and eliminate the resonance, and can solve the problems of abnormal resonance and abnormal noise in the working process of the roller enzyme-deactivating machine.
2. Whether the cause of the abnormal vibration is the blockage of the filter screen or not can be judged, and the blockage can be removed through the cleaning device. Thereby eliminating resonance of the shell and the multi-wing fan caused by the blockage of the filter screen. In addition, if abnormal vibration is not generated due to the blockage of the filter screen, the resonance elimination module executes vibration elimination operation on the resonance of the sound field, so that the resonance generated by the sound field of the multi-wing fan and the flow-through sound field in the flow-through pipe is eliminated, and the method for solving the abnormal vibration and noise under the double-pipe condition can enable the heat energy circulation system to work more reliably.
Drawings
FIG. 1 is a schematic diagram of the de-enzyming machine of the present invention;
FIG. 2 is a cross-sectional view of the de-enzyming machine of the present invention;
FIG. 3 is a flow chart of a method of resonance treatment of a thermal energy circulation system;
FIG. 4 is a perspective view of a blower;
FIG. 5 is a front view of a blower;
the label in the figure is:
1. a blower; 2. a guide pipe; 3. a filter screen; 4. a housing; 5. an air inlet; 6. an outlet; 7. a heating chamber; 8. an air outlet; 9. a roller; 10. a gear lever; 11. a motor; 12. a connecting rod; 13. an antinode region; 14. and a node region.
Detailed Description
Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some of the embodiments of the present application, but not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.
In the description of the present application, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. For ease of description, the dimensions of the various features shown in the drawings are not drawn to actual scale. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
It should be noted that, in the description of the present application, the terms "front, rear, upper, lower, left, right", "horizontal, vertical, horizontal", and "top, bottom", etc. generally refer to an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, and merely for convenience of description of the present application and simplification of the description, the azimuth terms do not indicate and imply that the apparatus or element referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
It should be noted that, in this application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
Example 1:
as shown in fig. 1-4, the heat energy circulation system of the roller 9 enzyme deactivating machine comprises a fan 1, a guide pipe 2, a filter screen 3 and a resonance treatment system. The fan 1 comprises a shell 4 and an inner cavity surrounded by the shell 4, a multi-wing fan is arranged in the inner cavity, the fan 1 comprises an air inlet 5 and an outlet 6, and the air inlet 5 of the fan 1 is arranged in a heating chamber 7 of a roller 9 enzyme deactivating machine; the inner cavity of the guide connection pipe 2 is hollow, the two ends of the guide connection pipe 2 are respectively provided with an inlet and an air outlet 8, the air outlet 8 is provided with an air control plate, and the opening and closing angle of the air control plate can control the air outlet size of the air outlet 8; the filter screen 3 is provided with filter holes; the filter screen 3 sets up at the air intake 5 of fan 1, and the entry of leading take over 2 communicates with the export 6 of fan 1, and the air outlet 8 of leading take over 2 extends to cylinder 9 inner chamber. The resonance processing system can judge abnormal resonance of the fan 1 and the guide pipe 2 and eliminate the resonance. The resonance treatment system comprises a vibration monitoring module, a blockage treatment module and a resonance elimination module, wherein the vibration monitoring module is electrically connected with the blockage treatment module to start the blockage treatment module, and the blockage treatment module is connected with the resonance elimination module to start the resonance elimination module. The abnormal resonance of the fan 1 and the guide pipe 2 can be judged and eliminated through the resonance processing system, and the abnormal resonance problem and the abnormal noise problem in the working process of the fixation machine of the roller 9 can be solved.
The vibration monitoring module comprises a vibration sensor, wherein the vibration sensor is used for detecting abnormal resonance, and the signal of the vibration sensor can enable the blockage processing module to be started.
The resonance treatment method of the resonance treatment system of the heat energy circulation system comprises the following steps:
s1, carrying out fixation work on a fan 1 of a fixation machine under the condition of air supply power and rotating speed meeting the requirements of tea;
step S2, monitoring whether abnormal vibration exists by a vibration sensor, if no abnormal vibration exists, normally executing the fixation work by the fixation machine, and if abnormal vibration is detected, starting a blockage processing module;
step S3, analyzing the cause of the abnormal vibration by the blockage processing module, judging whether the filter screen 3 of the air inlet 5 is blocked, and if the filter screen 3 is blocked by the analysis and judgment, removing the blockage by the cleaning device; if the analysis judges that the filter screen 3 is not blocked, the resonance elimination module executes vibration elimination operation on resonance of the sound field of the multi-wing fan and the airflow circulation sound field in the ventilation pipe;
and S4, repeating the step S2 after the step S3 is completed and the preset time interval T is operated.
By the processing method, whether the cause of the abnormal vibration is the blockage of the filter screen 3 or not can be judged, and the blockage can be removed by the cleaning device. Since a lot of impurities accumulate on the filter screen 3 to change the natural frequency of the housing 4 of the fan 1, resonance may occur with the multi-wing fan, when it is determined that the filter screen 3 is blocked, the filter screen 3 needs to be cleaned to restore the designed natural frequency of the housing 4 of the fan 1, so that resonance between the housing 4 and the multi-wing fan due to the blocking of the filter screen 3 is eliminated. In addition, if abnormal vibration is not generated due to the blockage of the filter screen 3, the resonance elimination module executes vibration elimination operation on the resonance of the sound field, so that the resonance generated by the sound field of the multi-wing fan and the flow-through sound field in the flow-through pipe is eliminated, and the method for solving the abnormal vibration and noise under the double-pipe condition can enable the heat energy circulation system to work more reliably.
Example 2:
as shown in fig. 2-4, the jam processing module includes a data acquisition module, a preliminary judgment module, a final judgment module, and a cleaning device. The data acquisition module can acquire actual measurement torque current of the fan 1 when the air outlet 8 has different air outlet sizes; the primary judging module is used for comparing the difference value between the actual measured torque currents and primarily judging whether the filter screen 3 is blocked or not; the final judging module is used for comparing the actually measured torque currents with different air-out sizes with the preset standard torque currents with corresponding air-out sizes after the primary judging module preliminarily judges that the filter screen 3 is blocked, and secondarily judging whether the filter screen 3 is blocked or not; the cleaning device is used for cleaning the filter screen 3 after the final judging module judges that the filter screen 3 is blocked.
The specific steps of the blockage treatment module are as follows:
step S3.1: and obtaining data, namely determining the numerical range of preset standard torque currents of the air control plate at different opening and closing angles. And obtaining the actually measured torque currents of the fan 1 of the air outlet 8 with different air outlet sizes through the data obtaining module, wherein the actually measured torque currents are divided into two groups, and respectively correspond to the actually measured torque currents of the air outlet 8 with the largest opening and closing angle and the smallest opening and closing angle.
Step S3.2: initially judging, namely comparing each measured torque current, and initially judging that the filter screen 3 is blocked when the difference value of each measured torque current is smaller than 10%, otherwise, judging that the filter screen 3 is not blocked; under the condition that the filter screen 3 is blocked, when the fan 1 runs under the condition that the filter screen 3 is not blocked, the actual measurement torque current of the fan 1 is different due to the difference of the air outlet size of the air outlet 8, and under the condition that the filter screen 3 is blocked, the influence of the air outlet size of the air outlet 8 on the actual measurement torque current of the fan 1 is not obvious.
Step S3.3: finally judging, namely after the filter screen 3 is primarily judged to be blocked, comparing the actually measured torque current of the air outlet size with the preset standard torque current of the corresponding air outlet size, wherein the preset standard torque current is in a numerical range, if each actually measured torque current is smaller than the preset standard torque current corresponding to the corresponding air outlet size, finally determining that the filter screen 3 is blocked, otherwise, judging that the filter screen 3 is not blocked; under the condition that the filter screen 3 is blocked, the actually measured torque current of the fan 1 is smaller than an initial value, so that whether the filter screen 3 is blocked can be judged twice.
Step S3.4: when the step S3.3 finally determines that the filter screen 3 is blocked, the cleaning device cleans the filter screen 3.
Example 3:
as shown in fig. 4 to 5, the resonance elimination module includes a lever 10 and a driving member capable of driving the lever 10 to be disposed above the air intake 5 of the blower 1 or to be located at a side of the air intake 5. The driving piece comprises a motor 11 and a connecting rod 12, the output end of the motor 11 is fixedly connected with one end of the connecting rod 12 in the circumferential direction, the other end of the connecting rod 12 is higher than the air inlet 5 and is fixedly connected with a baffle rod 10 in a mutually perpendicular mode, the connecting rod 12 is parallel to the axis of the multi-wing fan, and the baffle rod 10 can sweep above the air inlet 5 in a rotating mode.
Resonance occurs when the frequency of the sound field of the multi-wing fan generated by the noise of the multi-wing fan is matched with the natural frequency of the circulation sound field of the air flow in the draft tube, a standing wave sound field is generated at the air inlet 5, and an antinode region 13 and a node region 14 are formed at the air inlet. As shown in fig. 5, the two semicircular areas are acoustically antinode areas 13, and the portions indicated by the broken lines are acoustically node areas 14. In the sound field mode as shown in fig. 5, when the sound pressure in one of the semicircular antinode regions 13 becomes high to become a peak of the sound wave, the sound pressure in the other semicircular antinode region 13 becomes low to become a valley of the sound wave. The sound pressure is constantly zero at the sound pressure node portion shown by the broken line in fig. 5.
When the lever 10 is turned over the air inlet 5, it will cross the antinode region 13, so that the air pressure in the antinode region 13 will become unbalanced, and the resonance state will be destroyed. After judging that the filter screen 3 is not blocked, the vibration removing operation of the resonance eliminating module is as follows: the motor 11 is started to drive the connecting rod 12 to rotate by the output end so as to drive the baffle rod 10 to rotate, when the baffle rod 10 sweeps to the upper part of the air inlet 5 and points to the axis of the multi-wing fan, the motor 11 is stopped, and the baffle rod 10 passes through one of antinode areas 13 of the standing wave sound field of the air inlet 5 to destroy the resonance state.
The embodiments of the present application and the features of the embodiments may be combined without conflict, and the present application is not limited to the specific embodiments described above, which are merely illustrative, not restrictive, and many forms may be made by those of ordinary skill in the art, without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.
Claims (6)
1. A thermal energy circulation system for a rotary drum de-enzyming machine, comprising:
the fan (1), the fan (1) includes the body (4) and is enclosed by the body (4) the inner chamber of the city, the inner chamber embeds the multi-wing fan, the fan (1) includes air intake (5) and outlet (6), the air intake (5) of the fan (1) is set up in the heating chamber (7) of the cylinder (9) fixation machine;
the air conditioner comprises an air guide pipe (2), wherein the inner cavity of the air guide pipe (2) is hollow, an inlet and an air outlet (8) are respectively formed in two ends of the air guide pipe (2), an air control plate is arranged at the air outlet (8), and the opening and closing angle of the air control plate can control the air outlet of the air outlet (8);
the filter screen (3), the filter screen (3) is provided with filter holes;
the resonance treatment system comprises a vibration monitoring module, a blockage treatment module and a resonance elimination module, wherein the vibration monitoring module is electrically connected with the blockage treatment module to start the blockage treatment module, and the blockage treatment module is connected with the resonance elimination module to start the resonance elimination module;
the filter screen (3) is arranged at an air inlet (5) of the fan (1), an inlet of the guide pipe (2) is communicated with an outlet (6) of the fan (1), an air outlet (8) of the guide pipe (2) extends to an inner cavity of the roller (9), and the resonance processing system can judge abnormal resonance of the fan (1) and the guide pipe (2) and eliminate the resonance;
the vibration monitoring module comprises a vibration sensor, wherein the vibration sensor is used for detecting abnormal resonance, and a signal of the vibration sensor can enable the blockage processing module to be started;
the occlusion handling module includes:
the data acquisition module can acquire actual torque current of the fan (1) when the air outlet (8) has different air outlet sizes;
the primary judging module is used for comparing the difference value between the measured torque currents and primarily judging whether the filter screen (3) is blocked or not;
the final judging module is used for comparing the actual measurement torque currents with different air-out sizes with the preset standard torque currents with corresponding air-out sizes after the primary judging module primarily judges that the filter screen (3) is blocked, and secondarily judging whether the filter screen (3) is blocked or not;
the cleaning device is used for cleaning the filter screen (3) after the final judging module judges that the filter screen (3) is blocked;
the resonance elimination module comprises a baffle rod (10) and a driving piece, wherein the driving piece can drive the baffle rod (10) to be arranged above an air inlet (5) of the fan (1) or to be positioned at the side part of the air inlet (5);
the driving piece comprises a motor (11) and a connecting rod (12), wherein the output end of the motor (11) is fixedly connected with one end of the connecting rod (12) in the circumferential direction, the other end of the connecting rod (12) is higher than the air inlet (5) and is fixedly connected with the baffle rod (10) in the mutually perpendicular mode, the connecting rod (12) is parallel to the axis of the multi-wing fan, and the rotation energy of the baffle rod (10) can sweep above the air inlet (5).
2. The resonance treatment method suitable for the heat energy circulation system for the roller enzyme deactivating machine according to claim 1, which is characterized by comprising the following steps:
s1, carrying out fixation operation on a fan (1) of the fixation machine under the air supply power and the rotating speed which meet the requirements of tea;
step S2, monitoring whether abnormal vibration exists by a vibration sensor, if no abnormal vibration exists, normally executing the fixation work by the fixation machine, and if abnormal vibration is detected, starting a blockage processing module;
s3, analyzing the cause of abnormal vibration by a blockage processing module, judging whether the filter screen (3) of the air inlet (5) is blocked, and if the filter screen (3) is blocked by analysis and judgment, removing the blockage by a cleaning device; if the filter screen (3) is not blocked through analysis and judgment, the resonance elimination module executes vibration elimination operation on resonance of the sound field of the multi-wing fan and the airflow circulation sound field in the ventilation pipe;
and S4, repeating the step S2 after the step S3 is completed and the preset time interval T is operated.
3. A resonance treatment method according to claim 2, characterized in that the specific steps of the occlusion treatment module are:
step S3.1: obtaining data, namely obtaining actually measured torque currents of the fans (1) of the air outlets (8) with different air outlet sizes through a data obtaining module;
step S3.2: initially judging, namely comparing each measured torque current, and initially judging that the filter screen (3) is blocked when the difference value of each measured torque current is smaller than 10%, otherwise, judging that the filter screen (3) is not blocked;
step S3.3: finally judging, namely after the filter screen (3) is primarily judged to be blocked, comparing the actual measurement torque current of the air outlet size with the preset standard torque current of the corresponding air outlet size, wherein the preset standard torque current is a numerical range, and if each actual measurement torque current is smaller than the preset standard torque current corresponding to the corresponding air outlet size, finally determining that the filter screen (3) is blocked, otherwise, judging that the filter screen (3) is not blocked;
step S3.4: and when the step S3.3 finally determines that the filter screen (3) is blocked, the cleaning device cleans the filter screen (3).
4. A resonance treatment method according to claim 3, characterized in that, after the filter screen (3) has been determined to be unblocked, the resonance elimination operation of the resonance elimination module is: the motor (11) is started to drive the connecting rod (12) to rotate at the output end so as to enable the baffle rod (10) to rotate, when the baffle rod (10) sweeps to the upper part of the air inlet (5) and points to the axis of the multi-wing fan, the motor (11) is stopped, and the baffle rod (10) penetrates through the air inlet (5) to cross the standing wave sound field and the antinode region (13) so as to destroy the resonance state of the sound field.
5. The resonance processing method according to claim 4, wherein the measured torque currents are two groups, and correspond to the measured torque currents when the opening and closing angle of the air control plate of the air outlet (8) is the largest and the opening and closing angle is the smallest, respectively.
6. The method according to claim 5, wherein the range of the preset standard torque currents of the damper at different opening and closing angles is determined before step S3.1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211596426.9A CN115812807B (en) | 2022-12-12 | 2022-12-12 | Heat energy circulation system for roller fixation machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202211596426.9A CN115812807B (en) | 2022-12-12 | 2022-12-12 | Heat energy circulation system for roller fixation machine |
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