CN114636394A - Online monitoring method for deformation risk of hyperbolic cooling tower and special system thereof - Google Patents
Online monitoring method for deformation risk of hyperbolic cooling tower and special system thereof Download PDFInfo
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- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B15/00—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons
- G01B15/06—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring the deformation in a solid
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
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Abstract
The invention provides an online monitoring method for a hyperbolic cooling tower deformation risk and a special system thereof, which are used for solving the problem that a system for effectively monitoring the cooling tower deformation risk in real time cannot be realized at present. Adjusting the angles and the positions of the microwave emitter and the microwave receiver on the top circumference and the bottom circumference of the hyperbolic cooling tower respectively, so that the microwave emitter and the microwave receiver are respectively positioned at the top end and the bottom end of a curved surface base line of the hyperbolic cooling tower, and the microwave receiver can receive microwave signals sent by the microwave emitter; the controller controls the microwave emitter and the microwave receiver to respectively perform synchronous annular movement along the top circumference and the bottom circumference of the hyperbolic cooling tower, controls the microwave emitter to emit microwave signals to the microwave receiver and monitors whether the microwave receiver can receive the microwave signals, and judges that the hyperbolic cooling tower deforms if the microwave receiver cannot receive the microwave signals.
Description
Technical Field
The invention relates to the technical field of coal electric cooling, in particular to an online monitoring method for deformation risk of a hyperbolic cooling tower and a special system thereof.
Background
The cooling tower is one of the important supporting projects of the power plant, the structure of the cooling tower has the characteristics of height, large size, thin wall, variable diameter, variable cross section, curved surface and the like, the technical requirement of the process is high, the working influence range is wide, and the structural form mostly adopts a similar hyperbolic structure. However, the hyperbolic cooling tower is affected by self weight, wind load and stratum activity, deformation is generated after long-term use, and when the deformation exceeds a preset design value, the cooling tower is stopped to be used for maintenance and modification for the purpose of safe production, even is subjected to dismantling and reconstruction, but a system for evaluating and monitoring the deformation risk of the cooling tower in real time does not exist in the prior art.
Disclosure of Invention
Aiming at the problems, the invention provides an online monitoring method for the deformation risk of a hyperbolic cooling tower, which can solve the problem that no system for effectively monitoring the deformation risk of the cooling tower in real time exists in the field. Therefore, the invention also provides a special monitoring system.
A hyperbolic cooling tower deformation risk online monitoring method is characterized in that: which comprises the following steps:
firstly, arranging a microwave emitter on the top circumference of a hyperbolic cooling tower and arranging a microwave receiver on the bottom circumference of the hyperbolic cooling tower;
step two, initialization setting: adjusting the angles and the positions of the microwave emitter and the microwave receiver on the top circumference and the bottom circumference of the hyperbolic cooling tower respectively, so that the microwave emitter and the microwave receiver are respectively positioned at the top end and the bottom end of a curved surface base line of the hyperbolic cooling tower, and the microwave receiver can receive microwave signals sent by the microwave emitter;
and step three, the controller controls the microwave emitter and the microwave receiver to respectively perform synchronous annular movement along the top circumference and the bottom circumference of the hyperbolic cooling tower, meanwhile, the controller controls the microwave emitter to emit microwave signals to the microwave receiver and monitors whether the microwave receiver can receive the microwave signals, and if the controller monitors that the microwave receiver cannot receive the microwave signals, the controller judges that the hyperbolic cooling tower deforms.
Further, after the initialization device is completed, the controller collects and records initial position information of the microwave transmitter and the microwave receiver, and calculates an initial distance L between the microwave transmitter and the microwave receiver according to the initial position informationFirst stage(ii) a In the operation process of the third step, the controller acquires the real-time relative positions of the microwave transmitter and the microwave receiver through the sensor assemblyCalculating the real-time relative distance L between the microwave transmitter and the microwave receiver according to the real-time relative position, and comparing the real-time relative distance L with the initial distance LFirst stageIf the ratio of L to L is more than or equal to 0First stageIf the | is less than or equal to delta, the controller judges that the hyperbolic cooling tower is not deformed; if | L-LFirst stageIf the value is greater than delta, the controller judges that the hyperbolic cooling tower deforms; wherein the parameter δ is a deformation control threshold preset in the controller.
In a further preferred technical scheme, the sensor assembly comprises positioning sensors which are respectively arranged on the microwave emitter and the microwave receiver and can synchronously move along with the microwave emitter and the microwave receiver, and a positioning receiver which is arranged on the controller, and the controller is arranged at the geometric center of the top circumference of the hyperbolic cooling tower; the positioning sensor and the positioning receiver are electrically connected with the controller.
Further, the positioning sensor is any one of a displacement sensor or an angle encoder.
The invention discloses a special system for an online monitoring method of a deformation risk of a hyperbolic cooling tower, which comprises the hyperbolic cooling tower with a top circumference and a bottom circumference, and is characterized in that: the microwave emitter is movably arranged on the inner circumferential surface of the top circumference of the hyperbolic cooling tower through the roller mechanism, the microwave receiver is movably arranged on the inner circumferential surface of the bottom circumference of the hyperbolic cooling tower through the roller mechanism, the microwave emitter, the microwave receiver and the roller mechanism are respectively in electric control connection with the controller, the microwave emitter and the microwave receiver are respectively arranged at two ends of a curved base line of the hyperbolic cooling tower in an initial state of system operation, the microwave receiver can just receive signals sent by the microwave emitter, and the controller can respectively control the two roller mechanisms to enable the microwave emitter and the microwave receiver to respectively and constantly follow the top circumference, The bottom circumference moves in an annular mode, the controller monitors whether the microwave receiver can receive microwave signals sent by the microwave emitter or not in real time, and if the controller monitors that the microwave receiver cannot receive the microwave signals, the controller judges that the hyperbolic cooling tower deforms.
Further, it still includes sensor assembly, sensor assembly includes positioning sensor and location receiver, is used for setting up set up one respectively on two gyro wheel mechanisms of microwave transmitter, microwave receiver positioning sensor, the location receiver install in on the controller, the controller sets up in the geometric centre department of the top circumference of hyperbola cooling tower, positioning sensor, location receiver all with the controller is automatically controlled to be connected.
Further, the positioning sensor is any one of a displacement sensor or an angle encoder.
Furthermore, a top annular rail is installed on the inner circumferential surface of the top circumference of the hyperbolic cooling tower, a bottom annular rail is installed on the inner circumferential surface of the bottom circumference of the hyperbolic cooling tower, the controller is arranged at the geometric center of the top circumference of the hyperbolic cooling tower, and the microwave emitter and the microwave receiver are movably installed on the top annular rail and the bottom annular rail through the roller mechanism respectively.
Furthermore, the top annular rail and the bottom annular rail are I-shaped rails with I-shaped sections; the top annular track and the bottom annular track are respectively arranged on the top circumference of the hyperbolic cooling tower and the bottom circumference of the hyperbolic cooling tower through a top annular supporting beam and a bottom annular supporting beam; the microwave emitter is mounted on the bottom surface of the bottom flange plate of the I-shaped top annular track through the roller mechanism, the microwave receiver is mounted on the top surface of the top flange plate of the I-shaped bottom annular track through the roller mechanism, and the bottom flange plate of the top annular track and the top flange plate of the bottom annular track are respectively supporting plates for supporting the roller mechanism.
Furthermore, the roller mechanism comprises a support, an annular rack, a guide roller, a driving gear and a driving motor, the guide roller and the driving gear are both rotatably mounted on the support, the annular rack is mounted on the surface of one side of the support plate, the guide roller is arranged on the surface of the other side of the support plate in a rolling manner, the driving gear is meshed with the annular rack, the driving motor is mounted on the support, the power output end of the driving motor is in transmission connection with the wheel shaft of the driving gear, and the driving motor is in electric control connection with the controller.
Furthermore, the roller mechanism further comprises a driven gear, and the driven gear is rotatably arranged on the bracket and is meshed and connected with the annular rack.
Furthermore, the guide rollers of the roller mechanism are arranged in pairs, and each pair of guide rollers are arranged on two sides of the web plate of the I-shaped rail in a split mode.
Furthermore, the microwave emitter and the microwave receiver are respectively installed on the supports of the corresponding roller mechanisms through universal rotating devices, and the universal rotating devices are electrically connected with the controller.
Furthermore, the outer peripheral sides of the microwave transmitter, the microwave receiver and the corresponding universal rotating devices are respectively sealed and installed on the bracket of the roller mechanism by a protective cover.
The invention has the beneficial effects that: which is provided with microwave emitters on the top circumference and microwave receivers on the bottom circumference of a hyperbolic cooling tower, the microwave emitter and the microwave receiver are respectively positioned at the top end and the bottom end of a curved surface base line of the hyperbolic cooling tower by adjusting the angles and the positions of the microwave emitter and the microwave receiver on the top circumference and the bottom circumference of the hyperbolic cooling tower respectively, the microwave receiver can receive microwave signals sent by the microwave emitter, the controller controls the microwave emitter and the microwave receiver to respectively do synchronous annular movement along the top circumference and the bottom circumference of the hyperbolic cooling tower, meanwhile, the controller controls the microwave transmitter to transmit microwave signals to the microwave receiver and monitors whether the microwave receiver can receive the microwave signals or not, and if the controller monitors that the microwave receiver cannot receive the microwave signals, the controller judges that the hyperbolic cooling tower deforms; the method is simple, the system is convenient to set, and real-time assessment and monitoring can be realized, so that the deformation risk of the cooling tower can be effectively monitored in time, and the requirement of safe production is met.
Drawings
FIG. 1 is a schematic diagram of the online monitoring method for the deformation risk of a hyperbolic cooling tower according to the present invention;
FIG. 2 is a top schematic view of a hyperbolic cooling tower of a dedicated system of the present invention;
FIG. 3 is a schematic view of a partial structure of a microwave emitter mounted on a top circular rail via a roller mechanism in the special system of the present invention;
FIG. 4 is a schematic diagram of the dedicated system of the present invention in the direction H-H in FIG. 3;
FIG. 5 is a schematic view of a partial structure of a microwave receiver mounted on a bottom circular rail via a roller mechanism in the special system of the present invention;
FIG. 6 is a schematic diagram of the special system of the present invention according to the K-K direction in FIG. 4.
Reference numerals: 10-microwave emitter, 20-microwave receiver, 30-controller, 40-positioning sensor, 50-positioning receiver, 60-roller mechanism, 61-bracket, 62-circular rack, 63-guide roller, 64-drive gear, 65-drive motor, 66-driven gear, 71-positioning sensor, 72-positioning receiver, 80 a-bottom flange plate, 80 b-top flange plate, 80 c-web, 81-top circular track, 82-bottom circular track, 83-top circular support beam, 84-bottom circular support beam, 85-fastening bolt, 90-universal rotation device, 91-shield, 100-hyperbolic cooling tower, 101-top circumference, 102-bottom circumference, 103-herringbone net frame, A-curved surface base line.
Detailed Description
The invention discloses an online monitoring method for deformation risk of a hyperbolic cooling tower, which comprises the following steps:
step one, arranging a microwave emitter 10 on the top circumference 101 and a microwave receiver 20 on the bottom circumference 102 of a hyperbolic cooling tower 100, see fig. 1; in FIG. 1, 103 is a chevron-shaped grid supported at the bottom of hyperbolic cooling tower 100;
step two, initializationSetting: adjusting the angles and the positions of the microwave emitter 10 and the microwave receiver 20 on the top circumference and the bottom circumference 102 of the hyperbolic cooling tower respectively, so that the microwave emitter 10 and the microwave receiver 20 are respectively positioned at the top end and the bottom end of a curved base line A of the hyperbolic cooling tower, and the microwave receiver 20 can receive microwave signals sent by the microwave emitter 10; the controller 30 also collects and records initial position information of the microwave transmitter 10 and the microwave receiver 20, and calculates an initial distance L between the microwave transmitter 10 and the microwave receiver 20 according to the initial position informationFirst stage；
Step three, the controller 30 controls the microwave emitter 10 and the microwave receiver 20 to respectively perform synchronous annular movement along the top circumference 101 and the bottom circumference 102 of the hyperbolic cooling tower 100, meanwhile, the controller 30 controls the microwave emitter 10 to emit microwave signals to the microwave receiver 20 and monitors whether the microwave receiver 20 can receive the microwave signals, meanwhile, the controller 30 acquires real-time relative positions of the microwave emitter 10 and the microwave receiver 20 through the sensor assembly, calculates a real-time relative distance L between the microwave emitter and the microwave receiver according to the real-time relative positions, and compares the real-time relative distance L with the initial distance LFirst stage(ii) a If the controller 30 detects that the microwave receiver 20 can always receive the microwave signal transmitted by the microwave transmitter 10, or if the microwave receiver 20 cannot receive the microwave signal but is detected to be 0 ≦ L-LFirst stageIf the | is less than or equal to delta, the controller judges that the hyperbolic cooling tower is not deformed; if the controller 30 detects that the microwave receiver 20 cannot receive the microwave signal and | L-L |, the microwave signal is receivedFirst stageIf the value is greater than delta, the controller judges that the hyperbolic cooling tower deforms, and the controller 30 judges that the hyperbolic cooling tower deforms; wherein the parameter δ is a deformation control threshold preset in the controller. Wherein, the sensor assembly comprises a positioning sensor 40 which is respectively arranged on the microwave emitter 10 and the microwave receiver 20 and can move synchronously therewith, and a positioning receiver 50 which is arranged on the controller, the controller 30 is arranged at the geometric center of the top circumference 101 of the hyperbolic cooling tower 100; the positioning sensor 40 is any one of a displacement sensor and an angle encoder.
The special system for the online monitoring method of the deformation risk of the hyperbolic cooling tower in the above embodiment of the invention comprises a hyperbolic cooling tower 100 having a top circumference 101 and a bottom circumference 102, a microwave emitter 10, a microwave receiver 20, a roller mechanism 60 and a controller 30, wherein the microwave emitter 10 is movably arranged on the inner circumferential surface of the top circumference 101 of the hyperbolic cooling tower through the roller mechanism 60, the microwave receiver 20 is movably arranged on the inner circumferential surface of the bottom circumference 102 of the hyperbolic cooling tower through the roller mechanism 60, the microwave emitter 10, the microwave receiver 20 and the roller mechanism 60 are respectively electrically connected with the controller 30, the microwave emitter 10 and the microwave receiver 20 are respectively arranged at two ends of a curved base line a of the hyperbolic cooling tower 100 in an initial state of system operation, and the microwave receiver 20 can just receive signals sent by the microwave emitter 10, in the operation process of the system, the controller 30 can make the microwave emitter 10 and the microwave receiver 20 respectively and always perform annular movement along the top circumference 101 and the bottom circumference 102 by respectively controlling the two roller mechanisms 60, and the controller 30 monitors in real time whether the microwave receiver 20 can receive microwave signals sent by the microwave emitter 10, and if the controller 30 monitors that the microwave receiver 20 cannot receive the microwave signals, the controller 30 determines that the hyperbolic cooling tower is deformed.
The microwave transmitter further comprises a sensor assembly, wherein the sensor assembly comprises a positioning sensor 71 and a positioning receiver 72, the two roller mechanisms 60 used for arranging the microwave transmitter 10 and the microwave receiver 20 are respectively provided with the positioning sensor 71, the positioning receiver 72 is arranged on the controller 30, and the positioning sensor 71 and the positioning receiver 72 are electrically connected with the controller 30; the controller 30 is disposed at the geometric center of the top circumference 101 of the hyperbolic cooling tower 100; the positioning sensor 71 is any one of a displacement sensor and an angle encoder.
The inner circumferential surface of the top circumference 101 of the curvilinear cooling tower 100 is provided with a top annular rail 81, the inner circumferential surface of the bottom circumference 102 is provided with a bottom annular rail 82, the controller 30 is arranged at the geometric center of the top circumference 101 of the hyperbolic cooling tower 100, and the microwave emitter 10 and the microwave receiver 20 are movably arranged on the top annular rail 81 and the bottom annular rail 82 through the roller mechanism 60 respectively.
According to the preferable technical scheme, the top annular rail 81 and the bottom annular rail 82 are I-shaped rails with I-shaped sections, and comprise a bottom flange plate 80a, a top flange plate 80b and a web plate 80c vertically connected between the bottom flange plate 80a and the top flange plate 80 b; the top annular track 81 and the bottom annular track 82 are respectively installed on the top circumference 101 and the bottom circumference 102 of the hyperbolic cooling tower through a top annular supporting beam 83 and a bottom annular supporting beam 84, wherein the top annular supporting beam 83 and the bottom annular supporting beam 84 are respectively installed on the top circumference 101 and the bottom circumference 102 through fastening bolts 85; the microwave emitter 10 is mounted on the bottom surface of the bottom flange plate 80a of the top annular rail 81 with an i-shaped cross section through the roller mechanism 60, the microwave receiver 30 is mounted on the top surface of the top flange plate 80b of the bottom annular rail 82 with an i-shaped cross section through the roller mechanism 60, and the bottom flange plate 80a of the top annular rail 81 and the top flange plate 80b of the bottom annular rail 82 are respectively supporting plates for supporting the roller mechanism 60; thus, the two roller mechanisms 60 mounted on the top endless track 81 and the bottom endless track 82 are substantially arranged in a mirror-symmetrical manner.
The structure of the roller mechanism 60 will be described in detail below with reference to fig. 3 and 4, taking the roller mechanism 60 mounted on the top circular rail 81 as an example: the roller mechanism 60 comprises a bracket 61, an annular rack 62, a guide roller 63, a driving gear 64 and a driving motor 65, wherein the driving motor 65 is electrically connected with the controller 30, the guide roller 63 and the driving gear 64 are both rotatably installed on the bracket 61, the annular rack 62 is installed on the bottom surface of a bottom flange plate 80a of a top annular rail 81 serving as a supporting plate, the guiding roller 63 is arranged on the top surface in a rolling manner, the driving gear 64 is meshed with the annular rack 62, the driving motor 65 is installed on the bracket 61, and the power output end of the driving motor 65 is in transmission connection with the wheel shaft of the driving gear 64; the controller 30 controls the driving motor 65 to operate, the driving motor 65 drives the driving gear 64 to rotate, the driving gear 64 moves along the annular rack 62, and thus the bracket 61 and the microwave launcher 10 mounted on the bracket 61 integrally move along the top annular track 81 under the guiding action of the guiding roller 63 under the driving of the driving gear 64; the positioning sensor 71 is mounted on the bracket 61. The drive motor 65 and the microwave emitter 10 are not shown in fig. 3 for clarity of illustration of the mounting of the drive gear 64, the guide roller 63.
Preferably, the roller mechanism 60 further includes a driven gear 66, and the driven gear 66 is rotatably mounted on the bracket 61 and is engaged with the annular rack 62; the driven gear 66 is provided to improve the stability and reliability of the movement of the holder 61 and the microwave radiator 10 mounted on the holder 61 as a whole.
In addition, the guide rollers 63 of the roller mechanism 60 are arranged in pairs, and each pair of guide rollers 63 is respectively arranged at two sides of the web plate 80c of the i-shaped rail; in this embodiment, the two pairs of guide rollers 63 are provided, so that the stress of the top circular rail 81 having an i-shaped cross section is more uniform.
The microwave emitter 10 and the microwave receiver 20 are respectively mounted on the brackets 61 of the corresponding roller mechanisms 60 through universal rotating devices 90, and the universal rotating devices 90 are electrically connected with the controller 30; thus, the controller 30 can adjust the angles of the microwave transmitter 10 and the microwave receiver 20 through the two universal rotating devices 90.
Further, the outer peripheral sides of the microwave transmitter 10, the microwave receiver 20 and their corresponding universal rotary devices 90 are respectively hermetically mounted on the brackets 61 of the roller mechanism 60 by the shields 91; the protective cover 91 can effectively protect the microwave transmitter 10, the microwave receiver 20 and the corresponding universal rotating device 90, so as to prevent the smoke from generating adverse effects on the microwave transmitter and the microwave receiver.
The roller mechanism 60 mounted on the bottom circular rail 82 is mirror symmetrical to the roller mechanism mounted on the top circular rail 81, see fig. 5 and 6, and will not be described in detail.
The detailed description of the embodiments of the present invention is provided above, but the present invention is only the preferred embodiments of the present invention, and should not be considered as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the invention shall fall within the scope of the present invention.
Claims (10)
1. A hyperbolic cooling tower deformation risk online monitoring method is characterized in that: which comprises the following steps:
step one, arranging a microwave emitter on the top circumference of a hyperbolic cooling tower and arranging a microwave receiver on the bottom circumference of the hyperbolic cooling tower;
step two, initialization setting: adjusting the angles and the positions of the microwave emitter and the microwave receiver on the top circumference and the bottom circumference of the hyperbolic cooling tower respectively, so that the microwave emitter and the microwave receiver are respectively positioned at the top end and the bottom end of a curved surface base line of the hyperbolic cooling tower, and the microwave receiver can receive microwave signals sent by the microwave emitter;
and step three, the controller controls the microwave emitter and the microwave receiver to synchronously and annularly move along the top circumference and the bottom circumference of the hyperbolic cooling tower respectively, meanwhile, the controller controls the microwave emitter to emit microwave signals to the microwave receiver and monitors whether the microwave receiver can receive the microwave signals, and if the controller monitors that the microwave receiver cannot receive the microwave signals, the controller judges that the hyperbolic cooling tower deforms.
2. The on-line monitoring method for the deformation risk of the hyperbolic cooling tower as recited in claim 1, wherein: after the initialization device is completed, the controller collects and records initial position information of the microwave transmitter and the microwave receiver, and calculates the initial distance L between the microwave transmitter and the microwave receiver according to the initial position informationBeginning of the design(ii) a In the operation process of the third step, the controller acquires the real-time relative positions of the microwave transmitter and the microwave receiver through the sensor assembly, calculates the real-time relative distance L between the microwave transmitter and the microwave receiver according to the real-time relative positions, and compares the real-time relative distance L with the initial distance LFirst stageIf the ratio of L to L is more than or equal to 0First stageIf the | is less than or equal to delta, the controller judges that the hyperbolic cooling tower is not deformed; if L-LFirst stageIf the | is greater than the δ, the controller judges that the hyperbolic cooling tower deforms; whereinThe parameter δ is a deformation control threshold preset in the controller.
3. The on-line monitoring method for the deformation risk of the hyperbolic cooling tower as recited in claim 2, wherein the monitoring method comprises the following steps: the sensor assembly comprises positioning sensors and positioning receivers, the positioning sensors are arranged on the microwave emitter and the microwave receiver respectively and can synchronously move along with the microwave emitter and the microwave receiver, the positioning receivers are arranged on the controller, the controller is arranged at the geometric center of the circumference of the top of the hyperbolic cooling tower, and the positioning sensors and the positioning receivers are electrically connected with the controller.
4. The on-line monitoring method for the deformation risk of the hyperbolic cooling tower as recited in claim 4, wherein the monitoring method comprises the following steps: the positioning sensor is any one of a displacement sensor or an angle encoder.
5. The special system for the online monitoring method of the deformation risk of the hyperbolic cooling tower, disclosed in claim 1, comprises the hyperbolic cooling tower with a top circumference and a bottom circumference, and is characterized in that: the microwave cooling tower system further comprises a microwave emitter, a microwave receiver, roller mechanisms and a controller, wherein the microwave emitter is movably arranged on the inner circumferential surface of the top circumference of the hyperbolic cooling tower through the roller mechanisms, the microwave receiver is movably arranged on the inner circumferential surface of the bottom circumference of the hyperbolic cooling tower through the roller mechanisms, the microwave emitter, the microwave receiver and the roller mechanisms are respectively in electric control connection with the controller, the microwave emitter and the microwave receiver are respectively arranged at two ends of a curved base line of the hyperbolic cooling tower in an initial state of system operation, the microwave receiver can just receive signals sent by the microwave emitter at the moment, and the controller can enable the microwave emitter and the microwave receiver to respectively and always follow the top circumference through respectively controlling the two roller mechanisms in the system operation process, The bottom circumference moves in an annular mode, the controller monitors whether the microwave receiver can receive microwave signals sent by the microwave emitter or not in real time, and if the controller monitors that the microwave receiver cannot receive the microwave signals, the controller judges that the hyperbolic cooling tower deforms.
6. The special system for the hyperbolic cooling tower deformation risk online monitoring method according to claim 5, wherein the special system comprises: the device also comprises a sensor assembly, wherein the sensor assembly comprises a positioning sensor and a positioning receiver, the two roller mechanisms for arranging the microwave emitter and the microwave receiver are respectively provided with one positioning sensor, the positioning receiver is arranged on the controller, and the controller is arranged at the geometric center of the top circumference of the hyperbolic cooling tower; the positioning sensor is any one of a displacement sensor or an angle encoder.
7. The special system for the hyperbolic cooling tower deformation risk online monitoring method according to claim 6, wherein the special system comprises: the microwave transmitter and the microwave receiver are movably arranged on the top annular track and the bottom annular track respectively through the roller mechanism.
8. The special system for the hyperbolic cooling tower deformation risk online monitoring method according to claim 7, wherein: the top annular rail and the bottom annular rail are I-shaped rails with I-shaped sections; the top annular track and the bottom annular track are respectively arranged on the top circumference of the hyperbolic cooling tower and the bottom circumference of the hyperbolic cooling tower through a top annular supporting beam and a bottom annular supporting beam; the microwave emitter is mounted on the bottom surface of the bottom flange plate of the I-shaped top annular track through the roller mechanism, the microwave receiver is mounted on the top surface of the top flange plate of the I-shaped bottom annular track through the roller mechanism, and the bottom flange plate of the top annular track and the top flange plate of the bottom annular track are respectively supporting plates for supporting the roller mechanism.
9. The special system for the hyperbolic cooling tower deformation risk online monitoring method according to claim 8, wherein: the roller mechanism comprises a support, an annular rack, a guide roller, a driving gear, a driven gear and a driving motor, wherein the guide roller, the driving gear and the driven gear are rotatably arranged on the support; the guide rollers of the roller mechanism are arranged in pairs, and each pair of guide rollers are respectively arranged on two sides of a web plate of the I-shaped rail.
10. The special system for the hyperbolic cooling tower deformation risk online monitoring method according to claim 9, wherein: the microwave emitter and the microwave receiver are respectively arranged on the brackets of the corresponding roller mechanisms through universal rotating devices, and the universal rotating devices are electrically connected with the controller; and the peripheral sides of the microwave emitter, the microwave receiver and the corresponding universal rotating devices are respectively sealed and installed on the bracket of the roller mechanism by a protective cover.
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| CN115462305A (en) * | 2022-09-28 | 2022-12-13 | 北京中农富通园艺有限公司 | Pushing device of automatic water culture system |
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