CN111441983A - Fan oscillation degree monitoring system and monitoring method - Google Patents
Fan oscillation degree monitoring system and monitoring method Download PDFInfo
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- CN111441983A CN111441983A CN202010395028.5A CN202010395028A CN111441983A CN 111441983 A CN111441983 A CN 111441983A CN 202010395028 A CN202010395028 A CN 202010395028A CN 111441983 A CN111441983 A CN 111441983A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000010355 oscillation Effects 0.000 title claims description 8
- 238000012806 monitoring device Methods 0.000 claims abstract description 64
- 238000009434 installation Methods 0.000 claims description 11
- 230000000903 blocking effect Effects 0.000 claims description 9
- 230000000007 visual effect Effects 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 1
- 208000004350 Strabismus Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000011435 rock Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The invention discloses a fan vibration monitoring system and a monitoring method, wherein a main fan motor is arranged at the top end in a fan body, the main fan motor is connected with a fan rotating shaft in a driving way, and fan blades are connected to the lower part of the fan rotating shaft; t-shaped fixing grooves are symmetrically formed in the inner walls of the two sides of the fan body, T-shaped fixing blocks are fixedly connected to the outer walls of the two sides of the sloshing degree monitoring device body, and the T-shaped fixing blocks are clamped in the T-shaped fixing grooves; all be equipped with a set of internal thread fixed block that the symmetry set up on the top surface of shake degree monitoring devices body and the bottom surface, the inside of each internal thread fixed block is inserted and is equipped with perpendicular screw thread rotation valve with it, and the pivot stopper has all been installed to the one end that each screw thread rotation valve is close to the fan pivot, all inlays on each pivot stopper to be equipped with the pressure sensor who is connected with shake degree monitoring devices body circuit. The invention can carry out real-time monitoring when the rotating shaft of the fan rotates, and has convenient assembly and disassembly and high usability.
Description
Technical Field
The invention relates to the technical field of fans, in particular to a fan monitoring system and method.
Background
The fan is a machine which increases gas pressure and discharges gas by means of input mechanical energy, and the fan is used in many aspects, so that stable operation of the fan is particularly important.
Most of current fan monitoring facilities are the inside of passing through screw or screw fixed mounting at the fan with monitoring devices to in monitor the fan, need dismantle monitoring devices when fan break down and need maintain occasionally, but the fixed mode of screw or screw in the past makes the dismantlement mode of traditional structure very inconvenient, and whole steadiness is not good moreover. Meanwhile, as part of the fans are placed outdoors for a long time, the service lives of the fans and the monitoring device are extremely shortened due to long-time rain wash and sun exposure. Meanwhile, if the fan has the problems of shaking or deviation and the like in the operation process and is not found and overhauled in time, certain accidents are easy to occur. All of the above problems need to be solved one by one.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides a fan sloshing monitoring system and a fan sloshing monitoring method.
The technical scheme is as follows: in order to solve the technical problems, the invention provides a fan shaking degree monitoring system which comprises a fan body, wherein a main fan motor is arranged at the top end inside the fan body, the main fan motor is connected with a fan rotating shaft in a driving manner, fan blades are fixedly connected to the lower part of the fan rotating shaft, and the system also comprises a shaking degree monitoring device body positioned between the main fan motor and the fan blades; t-shaped fixing grooves are symmetrically formed in the inner walls of the two sides of the fan body, T-shaped fixing blocks are fixedly connected to the outer walls of the two sides of the sloshing degree monitoring device body, and the T-shaped fixing blocks are clamped in the T-shaped fixing grooves; the utility model discloses a fan, including the fan pivot, the fan pivot is equipped with the fan, the fan is equipped with the fan pivot, all be equipped with the symmetry on the top surface of shake degree monitoring devices body and the bottom surface and set up a set of internal thread fixed block, and the inside of each internal thread fixed block is inserted and is equipped with the screw rotation valve of vertically with it, and the pivot stopper has all been installed to the one end that each screw rotation valve is close to the fan pivot, all inlays on each pivot stopper to be equipped with the pressure sensor.
Preferably, a T-shaped hole groove is formed in the T-shaped fixing groove, and the T-shaped fixing block is a T-shaped structure fixing block matched with the T-shaped hole groove.
Preferably, the threaded rotary valve comprises a screw and a screwing end head positioned at one end of the screw, and the other end of the screw is fixedly connected with the rotating shaft limiting block; and a through hole which is provided with an internal thread and is used for a screw rod of the thread rotating valve to pass through is formed in the internal thread fixing block.
Further preferably, one surface of the rotating shaft limiting block close to the fan rotating shaft is an arc-shaped curved surface matched with the outer wall of the fan rotating shaft, and a plurality of pressure sensors connected with the circuit of the oscillation degree monitoring device body are embedded on the arc-shaped curved surface.
Preferably, two shielding shed fixing blocks which are vertically distributed are arranged on the outer walls of the two sides of the fan body, and a shielding shed fixing rod which is perpendicular to the shielding shed fixing blocks is inserted into each shielding shed fixing block; the other end of each shelter from canopy dead lever shelters from canopy fixed connection with the fan.
Preferably, the fixed block of the shelter is provided with a first cavity for inserting the fixed rod of the shelter, and a second cavity positioned outside the right side wall of the first cavity; the outer side wall of the shielding shed fixing rod is provided with a circular slotted hole, the right side wall of the first cavity is provided with a first through hole, and the right side wall of the second cavity is provided with a second through hole; a shielding shed fixing block is further arranged on the shielding shed fixing block, and a plurality of supporting springs are arranged in the second cavity; the blocking shed fixing fixture block comprises a fixing rod penetrating through the first through hole and the second through hole, a fixing end head positioned at one end of the fixing rod and a fixing push sheet fixed in the middle of the fixing rod and positioned in the second cavity, and the other end of the fixing rod is inserted into a circular groove hole in the outer side wall of the blocking shed fixing rod; one end of each supporting spring is connected with the right side wall of the second cavity, and the other end of each supporting spring is connected with the fixed push sheet.
Preferably, the sloshing monitoring device body is provided with a through hole which is vertically communicated and through which a rotating shaft of the fan passes; each group of internal thread fixing blocks positioned on the top surface and the bottom surface of the shaking degree monitoring device body are symmetrically distributed by taking the axis of the fan rotating shaft as the center.
Preferably, the through hole is a circular through hole, and the diameter size of the through hole is larger than that of the rotating shaft 3 of the fan.
The invention also provides a fan sloshing monitoring method, which uses any fan sloshing monitoring system, and comprises the following steps:
configuring preset numbers and corresponding installation position information for each pressure sensor;
calculating to obtain the shaking or offset angle of the rotating shaft of the fan by combining preset numbers and installation position information of the pressure sensors according to the data or signals of the pressure sensors monitored in real time;
when the shaking or deviation angle of the rotating shaft of the fan is larger than a first preset threshold value, sending an audible and visual alarm signal;
and when the shaking or deviation angle of the rotating shaft of the fan is larger than a second preset threshold value, closing the main motor of the fan.
Preferably, the second preset threshold is higher than the first preset threshold.
Has the advantages that: compared with the prior art, the fan sloshing monitoring system and the monitoring method provided by the invention can be used for monitoring the rotation of the fan rotating shaft in real time, are convenient to install and disassemble, can further shield the fan body so as to protect the fan body and the sloshing monitoring device body and prolong the service life, and the shielding shed is flexible and convenient to assemble and disassemble, strong in operability and high in usability:
(1) this system will shake degree monitoring devices body and place in the inside of fan body, insert the inside of T shape fixed slot through T shape fixed block and fix the shake degree monitoring devices body on the fan body, and it is convenient to install and dismantle.
(2) The thread rotating valve is rotated to enable the rotating shaft limiting block to be close to the surface of the fan rotating shaft, real-time monitoring can be carried out when the fan rotating shaft rotates, once the fan rotating shaft shakes or deviates during working, the pressure sensor embedded on the rotating shaft limiting block is collided or extruded, corresponding signals are transmitted to the shaking degree monitoring device body to realize shaking degree monitoring, and the structure is reasonable;
(3) furthermore, the rotation shaft limiting blocks are distributed in a vertically and horizontally symmetrical mode, so that the fan sloshing degree monitoring system is balanced in sloshing degree monitoring direction and high in sensitivity.
(4) Further, this system can shelter from canopy fixed mounting in the outside of fan body with the fan to shelter from for the fan body and protect the fan body and shake the degree monitoring devices body, alleviate the erosion and aging problem that the wind blows the sun and brings, effective increase of service life.
(5) Furthermore, the fan sloshing degree monitoring system provided by the invention is used for assembling the shielding shed fixing block, the shielding shed fixing clamping block and other components of the shielding shed fixing rod, is ingenious in structure, and reasonable in matching among the components, so that the shielding shed is flexible and convenient to assemble and disassemble, has high usability and strong operability, and can be widely popularized and applied.
(6) According to the fan sloshing monitoring method provided by the invention, the sloshing or shifting angle of the rotating shaft of the fan can be calculated in real time according to the monitored signals of the pressure sensors, such as the numerical values, the changes and the like of the pressure sensors, in combination with the preset serial numbers and the actual installation position information of the pressure sensors; when the rotating shaft of the fan shakes or the offset angle exceeds a preset threshold value, an audible and visual alarm signal is sent out and/or the main motor of the fan is turned off, so that a better safety strategy is realized for the operation of the fan, and the daily work of the fan is safer and more reliable.
Drawings
FIG. 1 is a schematic sectional elevation view of an embodiment;
FIG. 2 is a schematic front view of the structure of the embodiment;
FIG. 3 is a schematic bottom view of the embodiment;
fig. 4 is an enlarged schematic view of the structure at a in fig. 1.
In the figure: 1. a fan body; 2. fan blades; 3. a fan rotating shaft; 4. a main motor of the fan; 5. a power line; 6. t-shaped fixing grooves; 7. a T-shaped fixed block; 8. a sloshing degree monitoring device body; 9. an internal thread fixing block; 10. a screw-threaded rotary valve; 11. a rotating shaft limiting block; 12. a shelter fixing block; 13. a shelter fixing rod; 14. a support spring; 15. the blocking shed fixes the clamping block; 16. a fan shielding shed; 17. and fixing the push sheet.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited to the following examples.
As shown in fig. 1 to 4, the fan sloshing monitoring system provided in this embodiment includes a fan body 1, a power cord 5 is installed at the top end of the fan body 1, a main fan motor 4 is installed at the top end inside the fan body 1, the main fan motor 4 is connected to a fan rotating shaft 3 in a driving manner, fan blades 2 are fixedly connected to the lower portion of the fan rotating shaft 3, and the fan sloshing monitoring system further includes a sloshing monitoring device body 8 located between the main fan motor 4 and the fan blades 2; t-shaped fixing grooves 6 are symmetrically formed in the inner walls of the two sides of the fan body 1, T-shaped fixing blocks 7 are fixedly connected to the outer walls of the two sides of the sway degree monitoring device body 8, and the T-shaped fixing blocks 7 are clamped in the T-shaped fixing grooves 6. Specifically, in this embodiment, a T-shaped hole slot is formed in the T-shaped fixing slot 6, and the T-shaped fixing block 7 is a T-shaped structure fixing block matched with the T-shaped hole slot. The T-shaped fixing block 7 and the T-shaped fixing groove 6 form a clamping structure, and the shaking degree monitoring device body 8 can be fixed inside the fan body 1 by clamping the T-shaped fixing block 7 inside the T-shaped fixing groove 6.
In this embodiment, the main body 8 of the fluctuation monitoring device is provided with a through hole which is vertically through and through which the rotating shaft 3 of the fan passes. The fan rotating shaft 3 can be relatively rotatably positioned in the through hole 3. In this embodiment, the through hole is a circular through hole, and the diameter size of the through hole is larger than that of the fan rotating shaft 3. The fan rotating shaft 3 is positioned in the circular through hole and is not attached to the inner wall of the through hole. The shaking degree monitoring device body 8 is arranged in the through hole 3 in a way of relatively rotating through the fan rotating shaft 3 and is positioned between the fan main motor 4 and the fan blades 2.
In this embodiment, all be equipped with a set of internal thread fixed block 9 that the symmetry set up on the top surface of sway degree monitoring devices body 8 and the bottom surface, the inside of each internal thread fixed block 9 is inserted and is equipped with perpendicular screw rotation valve 10 with it, and pivot stopper 11 has all been installed to the one end that each screw rotation valve 10 is close to fan pivot 3, all inlays on each pivot stopper 11 to be equipped with the pressure sensor who is connected with sway degree monitoring devices body 8 circuit.
In this embodiment, specifically, the screw thread rotation valve 10 includes a screw and a screwing end head located at one end of the screw, and the other end of the screw is fixedly connected with the rotation shaft limiting block 11; the internal thread fixing block 9 is provided with a through hole which is provided with internal threads and through which a screw of the thread rotating valve 10 passes. That is, the inside of the internal thread fixing block 9 and the surface of the thread rotating valve 10 form a spiral rotating structure, and the rotation of the thread rotating valve 10 can move the rotating shaft limiting block 11 left and right, so that the rotating shaft limiting block is close to or far away from the fan rotating shaft 3.
Meanwhile, in this embodiment, each set of internal thread fixing blocks 9 located on the top surface and the bottom surface of the sway degree monitoring device body 8 are symmetrically distributed or circumferentially distributed with the axis of the fan rotating shaft 3 as the center. In this embodiment, each group has two internal thread fixed blocks, and these two internal thread fixed blocks use the axis of fan pivot as central symmetry distribution. In some embodiments, each set has more than three internal thread fixing blocks, and the internal thread fixing blocks are distributed circumferentially by taking the axis of the rotating shaft of the fan as a center. The internal thread fixed block on the top surface and the internal thread fixed block on the bottom surface are also distributed in an up-and-down symmetrical manner on a horizontal plane vertical to the axis of the fan rotating shaft. At the moment, the upper, lower, left and right symmetrical distribution of the rotating shaft limiting blocks ensures that the fan sloshing monitoring system has balanced sloshing monitoring directions and high sensitivity.
In some preferred embodiments, the sloshing monitoring device body 8 is provided with a through notch, the cross section of the sloshing monitoring device body is in a shape of a major arc bow, the notch is positioned at the center of the cross section of the major arc bow, the opening of the notch on the cross section is positioned at the chord of the major arc bow, and the size of the notch is larger than that of the fan rotating shaft 3. The fan rotating shaft 3 is positioned at the notch and is close to the inner wall of the notch. The top surface and the bottom surface of the sway degree monitoring device body 8 are also respectively a major arc arch-shaped top surface and a major arc arch-shaped bottom surface so as to arrange each internal thread fixing block, and each group of internal thread fixing blocks (each group has two internal thread fixing blocks in the embodiment) are distributed symmetrically by taking the axis of the fan rotating shaft as the center. Under this structure, shake degree monitoring devices body 8 can follow one side of fan pivot 3 and move aside, and need not wear to establish from top to bottom, and it is more convenient to dismantle the installation.
In this embodiment, the side of the rotating shaft limiting block 11 close to the fan rotating shaft 3 is close to the fan rotating shaft 3. That is to say, a certain gap is left between the side face of the rotating shaft limiting block 11 close to the fan rotating shaft 3 and the outer wall of the fan rotating shaft 3. The structure which can rotate relatively and is formed between the fan rotating shaft 3 and each rotating shaft limiting block 11 enables on one hand, when the fan rotating shaft 3 deviates, shakes and the like in the rotating process, a part of pressure sensors embedded on the rotating shaft limiting blocks are collided or extruded to timely transmit corresponding signals to the shaking degree monitoring device body to realize shaking degree monitoring, namely, the deviation, shaking and the like which occur in the rotating process of the fan rotating shaft 3 can be timely monitored by the shaking degree monitoring device body 8; on the other hand also can play certain limiting displacement to fan pivot 3 through a plurality of pivot stoppers 11, effectively reduces the possibility that takes place bigger rocking and skew, effectively improves the security performance.
In this embodiment, the system further includes a controller (not shown) disposed in the sloshing degree monitoring device body, and each of the pressure sensors is electrically connected to the controller. In some embodiments, the system further comprises an audible and visual alarm arranged on the outer side wall of the blower body 1, and the audible and visual alarm is also connected with the controller circuit. The system also comprises a sloshing monitoring device, namely the sloshing monitoring device corresponding to the sloshing monitoring device body. The sloshing monitoring device comprises a sloshing monitoring device body, a controller arranged in the sloshing monitoring device body and each pressure sensor connected with the controller through a circuit. In some embodiments, the device for monitoring the sloshing degree further comprises an audible and visual alarm connected with the controller circuit and located on the outer side wall of the fan body 1. The controller is a control chip, and may be a CPU, an MCU, a single chip microcomputer, a microcontroller, a microprocessor, or the like, and if a stm32 series chip is specifically adopted, other chips may be adopted as needed. The fan sloshing monitoring system may also be referred to as a fan sloshing monitoring device, or a fan with a sloshing monitoring device or a fan system with a sloshing monitoring device. In this scheme the monitoring devices body is called to the degree of oscillation monitoring devices body. In this scheme the monitoring devices of degree of oscillation, monitoring devices can also be called.
In some embodiments, each of the pressure sensors and the fan main motor 4 is connected to the controller circuit. Under the structure and the structure, the on-off of the main motor of the fan can be controlled according to the monitored conditions of deviation, shaking and the like of the rotating shaft of the fan, so that the fan is closed to stop rotating in time, a better safety strategy is realized, and the safety performance is higher.
In some preferred embodiments, one surface of the rotation shaft limiting block 11 close to the fan rotation shaft 3 is an arc-shaped curved surface matched with the outer wall of the fan rotation shaft 3, and a plurality of pressure sensors in circuit connection with the oscillation degree monitoring device body 8 are evenly embedded on the arc-shaped curved surface. Under this structure, can obtain a plurality of monitoring position that are better more comprehensive more balanced to further promote fan degree of shaking monitoring's sensitivity and accuracy.
As shown in fig. 1, 2 and 3, two shelter fixing blocks 12 distributed up and down are respectively arranged on the outer walls of the two sides of the fan body 1, and a shelter fixing rod 13 perpendicular to each shelter fixing block 12 is inserted into each shelter fixing block 12; the other end of each shelter fixing rod 13 is fixedly connected with a fan shelter 16. The inside of sheltering from canopy fixed block 12 and the fixed fixture block 15's of sheltering from canopy surface constitution slidingtype structure can make and shelter from canopy fixed fixture block 15 and slide in the inside of sheltering from canopy fixed block 12. In this embodiment, the inside of the shelter fixing rod 13 and the side of the shelter fixing block 15 close to the central position of the fan body 1 form a snap-fit structure, so that the fan shelter 16 can be fixed by the shelter fixing rod 13. In some preferred embodiments, the fan shelter 16 is larger than the corresponding side of the fan body 1, so as to better perform the shelter function.
In some preferred embodiments, as shown in fig. 4 in particular, the shelter fixing block 12 is provided with a first cavity into which the shelter fixing rod 13 is inserted, and a second cavity located outside a right side wall of the first cavity; the outer side wall of the shielding shed fixing rod 13 is provided with a circular slotted hole, the right side wall of the first cavity is provided with a first through hole, and the right side wall of the second cavity is provided with a second through hole. The circular groove hole on the outer side wall of the shelter fixing rod 13 is aligned with the first through hole and the second through hole left and right. In this embodiment, the circular slot, the first through hole and the second through hole have the same aperture, and the centers of the three holes are located on the same straight line. A blocking shed fixing clamping block 15 is further arranged on the blocking shed fixing block 12, and a plurality of supporting springs are arranged in the second cavity; the blocking shed fixing fixture block 15 comprises a fixing rod penetrating through the first through hole and the second through hole, a fixing end head positioned at one end of the fixing rod and a fixing push sheet 17 fixed in the middle of the fixing rod and positioned in the second cavity, and the other end of the fixing rod is inserted into a circular groove hole in the outer side wall of the blocking shed fixing rod 13; one end of each supporting spring is connected with the right side wall of the second cavity, and the other end of each supporting spring is connected with the fixed push sheet 17.
Taking the wind turbine sloshing monitoring system provided by the embodiment as an example, the working process and the principle are explained as follows: when the fan is used, when the shake degree monitoring device body 8 needs to be installed inside the fan body 1, the fan rotating shaft 3 is aligned to a through hole of the shake degree monitoring device body 8, the shake degree monitoring device body 8 is sleeved outside the fan rotating shaft 3 from bottom to top, then the T-shaped fixed blocks 7 on the outer walls of the two sides of the shake degree monitoring device body 8 are rotated/clamped inside the T-shaped fixed grooves 6 on the inner walls of the two sides of the fan body 1, so that the shake degree monitoring device body 8 is fixed inside the fan body 1, then the threaded rotary valves 10 are rotated/adjusted, the rotating shaft limiting blocks 11 are close to the outer surface of the fan rotating shaft 3, the fan rotating shaft 3 can be monitored in real time during rotation, and then the fan blades 2 located at the lower part are installed; when the intensity of oscillation monitoring devices body 8 is dismantled from the inside of fan body 1 as required, lift fan flabellum 2 off, then earlier through rotating/adjusting each screw thread rotation valve 10, make each pivot stopper 11 keep away from the surface of fan pivot 3, again with T shape fixed block 7 from the inside of T shape fixed slot 6 turn out/take out, again will shake intensity monitoring devices body 8 and remove the lower part from the middle part of fan pivot 3 and take out, finally will shake intensity monitoring devices body 8 and dismantle from the inside of fan body 1.
When the work operation is all installed to each part of this fan shake degree monitoring system, in case fan pivot 3 takes place to squint, rock the circumstances such as in the rotation process, inlay the collision or the extrusion that can receive fan pivot 3 of locating on the pivot stopper, the pressure sensor who corresponds can in time transmit corresponding signal for shake degree monitoring devices body and realize the shake degree monitoring, send out the police dispatch newspaper even and/or close fan owner motor, safe and reliable. Simultaneously through being located fan pivot 3 outside and rather than a plurality of pivot stoppers 11 of pressing close to, can play certain limiting displacement to fan pivot 3, effectively reduced fan pivot 3 and taken place the possibility of greater rocking and skew, factor of safety is higher.
Meanwhile, when the fan shelter needs to be installed, the fixing end of the shelter fixing fixture block 15 is held and pulled outwards, the shelter fixing rod 13 is inserted into the first cavity of the shelter fixing block 12, so that the circular groove hole on the outer side wall of the shelter fixing rod 13 is aligned with the first through hole, then the fixing end of the shelter fixing clamping block 15 is loosened, under the action of the resilience force of each supporting spring in the second cavity, the supporting spring pushes the fixed push sheet 17, thereby indirect promotion shelters from canopy fixed fixture block 15's dead lever and moves to the inboard for the other end of this dead lever passes and inserts after the first through hole and establish in the circular slot on sheltering from canopy dead lever 13 lateral wall downthehole, realized the installation of sheltering from canopy dead lever 13 in a flexible way, conveniently, after installing each shelter from canopy dead lever 13, again with the fan shelter from the canopy install at each shelter from canopy dead lever 13 can. When needing to dismantle, otherwise, the fixed end that directly outwards stimulates sheltering from canopy fixed fixture block 15 for the dead lever that shelters from canopy fixed fixture block 15 moves to the outside, makes the other end of this dead lever leave the circular slotted hole that shelters from on 13 lateral walls of canopy dead lever, then will shelter from canopy dead lever 13 and take out from the first cavity that shelters from canopy fixed block 12, then accomplished the dismantlement that shelters from canopy dead lever 13, very convenient and easily operation.
Meanwhile, the embodiment provides a fan sloshing monitoring method, which uses any one of the fan sloshing monitoring systems, and the method comprises the following steps:
configuring preset numbers and corresponding installation position information for each pressure sensor;
calculating to obtain the shaking or offset angle of the rotating shaft of the fan by combining preset numbers and installation position information of the pressure sensors according to the data or signals of the pressure sensors monitored in real time;
when the shaking or deviation angle of the rotating shaft of the fan is larger than a first preset threshold value, sending an audible and visual alarm signal;
and when the shaking or deviation angle of the rotating shaft of the fan is larger than a second preset threshold value, closing the main motor of the fan.
That is, in the present embodiment, each pressure sensor is configured with a preset number and its corresponding installation position information. The controller in the sloshing degree monitoring device body calculates in real time to obtain the sloshing or shifting angle of the rotating shaft of the fan according to the monitored signals of the pressure sensors, such as the numerical values and the changes of the pressure sensors, and by combining the preset serial numbers and the actual installation position information of the pressure sensors; if the shaking or deviation angle of the fan rotating shaft exceeds a first preset threshold value, an audible and visual alarm signal is sent, and if the shaking or deviation angle of the fan rotating shaft further exceeds a second preset threshold value, the main motor of the fan is turned off through the controller. The first preset threshold and the second preset threshold can be flexibly set according to actual application scenes. The method realizes a better safety strategy for the operation of the fan, so that the daily work of the fan is safer and more reliable.
The above is only a preferred embodiment of the present invention, and it should be noted that the above embodiment does not limit the present invention, and various changes, equivalents and modifications made by workers within the scope not departing from the technical spirit of the present invention are within the protection scope of the present invention.
Claims (10)
1. The utility model provides a fan intensity of oscillation monitoring system, includes fan body (1), its characterized in that: the system comprises a fan body (1), a main fan motor (4) is arranged at the top end inside the fan body (1), the main fan motor (4) is connected with a fan rotating shaft (3) in a driving mode, fan blades (2) are fixedly connected to the lower portion of the fan rotating shaft (3), and the system further comprises a shaking degree monitoring device body (8) located between the main fan motor (4) and the fan blades (2); t-shaped fixing grooves (6) are symmetrically formed in the inner walls of the two sides of the fan body (1), T-shaped fixing blocks (7) are fixedly connected to the outer walls of the two sides of the sloshing degree monitoring device body (8), and the T-shaped fixing blocks (7) are clamped in the T-shaped fixing grooves (6); all be equipped with a set of internal thread fixed block (9) that the symmetry set up on the top surface of shake degree monitoring devices body (8) and the bottom surface, the inside of each internal thread fixed block (9) is inserted and is equipped with perpendicular screw rotation valve (10) with it, and pivot stopper (11) have all been installed to the one end that each screw rotation valve (10) are close to fan pivot (3), all inlays on each pivot stopper (11) and is equipped with the pressure sensor with shake degree monitoring devices body (8) circuit connection.
2. The fan sloshing monitoring system of claim 1, wherein: t-shaped slots are formed in the T-shaped fixing grooves (6), and the T-shaped fixing blocks (7) are T-shaped structure fixing blocks matched with the T-shaped slots.
3. The fan sloshing monitoring system of claim 1, wherein: the thread rotating valve (10) comprises a screw and a screwing end head positioned at one end of the screw, and the other end of the screw is fixedly connected with the rotating shaft limiting block (11); the internal thread fixing block (9) is provided with a through hole which is provided with an internal thread and through which a screw rod of the thread rotating valve (10) passes.
4. The fan sloshing monitoring system of claim 1, wherein: the one side that fan pivot (3) are pressed close to in pivot stopper (11) is the arc curved surface with the outer wall assorted of fan pivot (3), inlays on this arc curved surface and is equipped with a plurality of and shake degree monitoring devices body (8) circuit connection's pressure sensor.
5. The fan sloshing monitoring system of claim 1, wherein: two shielding shed fixing blocks (12) which are vertically distributed are arranged on the outer walls of the two sides of the fan body (1), and a shielding shed fixing rod (13) which is perpendicular to the shielding shed fixing blocks is inserted into each shielding shed fixing block (12); the other end of each shelter fixing rod (13) is fixedly connected with the fan shelter (16).
6. The fan sloshing monitoring system of claim 5, wherein: the shielding shed fixing block (12) is provided with a first cavity for inserting a shielding shed fixing rod (13) and a second cavity positioned on the outer side of the right side wall of the first cavity; the outer side wall of the shielding shed fixing rod (13) is provided with a circular slotted hole, the right side wall of the first cavity is provided with a first through hole, and the right side wall of the second cavity is provided with a second through hole; a shielding shed fixing clamping block (15) is further arranged on the shielding shed fixing block (12), and a plurality of supporting springs are arranged in the second cavity; the blocking shed fixing fixture block (15) comprises a fixing rod penetrating through the first through hole and the second through hole, a fixing end head positioned at one end of the fixing rod and a fixing push sheet (17) fixed in the middle of the fixing rod and positioned in the second cavity, and the other end of the fixing rod is inserted into a circular groove hole in the outer side wall of the blocking shed fixing rod (13); one end of each supporting spring is connected with the right side wall of the second cavity, and the other end of each supporting spring is connected with the fixed push sheet (17).
7. The fan sloshing monitoring system of claim 1, wherein: the sloshing degree monitoring device body (8) is provided with a through hole which is communicated up and down and through which the fan rotating shaft (3) passes; each group of internal thread fixing blocks (9) positioned on the top surface and the bottom surface of the shaking degree monitoring device body (8) are symmetrically distributed by taking the axis of the fan rotating shaft (3) as the center.
8. The fan sloshing monitoring system of claim 1, wherein: the through holes are round through holes, and the diameter size of the through holes is larger than that of the fan rotating shaft 3.
9. A method for monitoring the sloshing of a fan is characterized by comprising the following steps: the wind turbine sloshing monitoring system of claims 1 to 8 is used, and the method comprises the following steps:
configuring preset numbers and corresponding installation position information for each pressure sensor;
calculating to obtain the shaking or offset angle of the rotating shaft of the fan by combining preset numbers and installation position information of the pressure sensors according to the data or signals of the pressure sensors monitored in real time;
when the shaking or deviation angle of the rotating shaft of the fan is larger than a first preset threshold value, sending an audible and visual alarm signal;
and when the shaking or deviation angle of the rotating shaft of the fan is larger than a second preset threshold value, closing the main motor of the fan.
10. The fan sloshing monitoring method according to claim 9, characterized in that: the second preset threshold is higher than the first preset threshold.
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| CN111441983B (en) | 2024-04-12 |
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