CN112058820A - Method for cleaning outer circumferential wall of fused salt tube of photo-thermal power generation system - Google Patents
Method for cleaning outer circumferential wall of fused salt tube of photo-thermal power generation system Download PDFInfo
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- CN112058820A CN112058820A CN202010893866.5A CN202010893866A CN112058820A CN 112058820 A CN112058820 A CN 112058820A CN 202010893866 A CN202010893866 A CN 202010893866A CN 112058820 A CN112058820 A CN 112058820A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/023—Cleaning the external surface
Abstract
The invention discloses a method for cleaning the outer circumferential wall of a fused salt tube of a photo-thermal power generation system, which comprises the following steps: s1Mounting the shell on the end part of the protection tube; s2Starting the two-way motor to drive the clamping plate I and the clamping plate II to synchronously rotate; s3When the shell meets the joint, the driving motor is started, and the two movable plates synchronously rotate into the arc-shaped cavity; s4The clamping plate I sweeps over the connecting rod, and the clamping plate II repeats the motion track of the clamping plate I; s5When the clamping plate I and the clamping plate II completely cross the joint, starting the two driving motors again until the two movable plates and the fixed plate form a closed circular ring again; s6And the bidirectional motor drives the shell to perform linear motion again around the protection tube until the next joint on the protection tube is met, and the clamping plate I and the clamping plate II repeatedly perform the same operation. The invention can regularly clean the protection tube, can reduce the use cost of the photo-thermal power generation system, and simultaneously ensures the photo-thermal conversion efficiency of the molten salt.
Description
Technical Field
The invention relates to the field of new energy, in particular to a method for cleaning the outer circumferential wall of a fused salt tube of a photo-thermal power generation system.
Background
The solar photo-thermal power generation is realized by collecting solar heat energy by utilizing a large-scale array parabolic or dish-shaped mirror surface, providing steam through a heat exchange device and combining the process of driving a motor by traditional turbo-generation. The solar photo-thermal power generation technology is adopted, so that an expensive silicon crystal photoelectric conversion process is avoided, and the cost of solar power generation can be greatly reduced; moreover, the solar energy utilization in the form has incomparable advantages compared with other forms of solar energy conversion, namely that water heated by solar energy can be stored in a huge container, and a turbine can still be driven to generate electricity for several hours after the sun lands, namely the time of energy conversion is prolonged, and the generating efficiency is improved. In the conventional photo-thermal power generation system, a light condensing system is a core component, and in order to pursue photo-thermal conversion efficiency, a solar tracking system is generally arranged on the light condensing system, so that the light condensing system can maximize lighting efficiency after determining longitude and latitude where the photo-thermal power generation system is installed. Moreover, the photo-thermal power generation system is generally arranged in areas with sufficient illumination, flat terrain and stable geology, such as gobi, plains and the like, but after the photo-thermal power generation system is used for a long time, a large amount of dust or attachments such as wind and sand can be accumulated on a protection pipe outside a fused salt pipe, which is a heat-absorbing core component, so that the light condensation efficiency of the photo-thermal power generation system is greatly reduced, the input and the output are not in direct proportion, the use cost of the photo-thermal power generation system is increased, the cost performance is reduced, and the popularization and the use of the photo-thermal power generation are not facilitated.
Disclosure of Invention
The invention aims to provide a method for cleaning the outer circumferential wall of a fused salt tube of a photo-thermal power generation system, so as to solve the defects.
The invention is realized by the following technical scheme:
a method for cleaning the outer circumferential wall of a molten salt tube of a photo-thermal power generation system comprises the following steps:
S1mounting the shell on the end part of the protection tube;
S2the bidirectional motor is started to drive the driving gear to be matched with the toothed belt I and the toothed belt II so as to drive the clamping plate I, the cleaning assembly I, the clamping plate II and the cleaning assembly II to synchronously rotate;
S3when the shell meets the joint on the protection tube, firstly, two driving motors are startedThe two movable plates synchronously rotate into the arc-shaped cavity until the opening of the fixed plate is completely opened;
S4when the clamping plate I close to the joint rotates to the position that the opening is opposite to the connecting rod, the clamping plate I sweeps the connecting rod while rotating and moving linearly, and the two bidirectional motors continue to rotate until the clamping plate II repeats the motion track of the clamping plate I;
S5after the clamping plate I and the clamping plate II completely cross the joint, starting the two driving motors again to enable the two movable plates to move out of the arc-shaped cavity again until the two movable plates and the fixed plate form a closed circular ring again;
S6starting the bidirectional motor to drive the shell to move linearly around the protection tube again until the next joint on the protection tube is met, and repeating the same operation on the clamping plate I and the clamping plate II to finish the cleaning process of the outer wall of the whole protection tube;
wherein, the shell is arranged on the outer wall of the protective tube in a sliding way, a plurality of telescopic rods are arranged on the outer circumferential wall of the shell along the circumferential direction of the joint, the shell comprises a fixing plate in a shape of a major arc, an arc cavity is arranged in the fixing plate, two ends of the arc cavity are open, the end parts of the telescopic rods are respectively connected with the closed end of the arc cavity, two movable plates in a shape of a minor arc are respectively arranged at two ends of the arc cavity in a sliding way, two driving motors are arranged in the arc cavity, the output end of the driving motor is provided with an adjusting gear, the inner wall of each movable plate is provided with a toothed belt I, the end part of each movable plate is provided with an arc follower plate, the follower plate is arranged in the arc cavity, the inner wall of the follower plate is provided with a rack matched with the adjusting gear, two arc holes communicated with the arc cavity are arranged on the inner wall along the, the outer side walls of the two flanges are respectively fixed with a toothed belt II, the two toothed belts I and the toothed belts form a closed circular ring, a clamping plate I in a major arc shape is fixed on the inner side wall of one flange, a clamping plate II in a major arc shape is fixed on the inner side wall of the other flange, the clamping plate I is connected with the clamping plate II through a connecting column, two-way motors are arranged in an arc-shaped cavity, driving gears matched with the toothed belts II are arranged on two output ends of each two-way motor, a cleaning assembly I is arranged on the inner side wall of the clamping plate I, and a cleaning assembly II is arranged on the inner side wall of the clamping plate II; under the initial state, fixed plate and two fly leafs splice into a complete circle, and cardboard I overlaps with cardboard II and establishes on the outer periphery wall of protection tube, and cardboard I is relative with cardboard II's opening. Among the current light and heat power generation system, because each part in the system is exposed to the sun for a long time in the open air, all produce a large amount of attachments on solar concentration system's solar panel, the protection tube, especially the attachment on the protection tube can greatly influence the efficiency of being heated of fused salt intraductal fused salt, regularly clear up the protection tube and can reduce light and heat power generation system's use cost, ensure the light and heat conversion efficiency of fused salt simultaneously, consequently, the applicant designs a protection tube outer wall cleaning device, can clear up the protection tube outer wall when light and heat power generation system shuts down and maintains.
Firstly, it is pointed out that the light condensing system of the existing photothermal power generation system comprises a plurality of light condensing plates and a plurality of molten salt pipes, a transparent protection pipe is sleeved on the outer wall of each molten salt pipe, a plurality of joints are arranged on each protection pipe, and each joint is connected with each light condensing plate through a connecting rod so as to ensure the support stability of each molten salt pipe, namely, a cleaning device needs to stretch across the joints when the protection pipes are cleaned, so that a common linear reciprocating motion executing mechanism cannot meet the cleaning work of the protection pipes; it is further noted that, in the initial state, the clamping plate I and the clamping plate II are respectively positioned at two sides of the protection tube, namely, the clamping plate I and the clamping plate II always maintain two clamping points on the protective tube when the shell moves linearly, the fixed plate, the clamping plate I and the clamping plate II are all in a major arc shape, namely, the three parts all have the same opening, so that the clamping plate I and the clamping plate II can sweep over the joint and the connecting rod in sequence on the premise of controlling the rotating speed of the bidirectional motor, the cleaning component I and the cleaning component II are both made of flexible rubber materials which can generate certain deformation, namely, when the cleaning component I is contacted with the outer wall of the joint, the cleaning component I and the cleaning component II are locally deformed and then smoothly pass through the joint, and the joint is similar to a hoop, the outer diameter of the cleaning assembly I is relatively small, so that the local deformation quantity generated by the cleaning assembly I and the cleaning assembly II is relatively small, and the resistance encountered when the cleaning assembly I and the cleaning assembly II pass through is small. When the gear belt I and the gear belt II penetrate through the joint and the connecting rod, the gear belt I and the gear belt II are always in contact with the driving gear.
All be equipped with the baffle on two inner walls at arc cavity both ends, all be equipped with the round pin post on two lateral walls of each follow-up plate, under the initial condition, follow-up plate activity runs through the clearance between two baffles and extends to arc cavity middle part, and two round pin posts contact with the inside wall of baffle respectively. Further, when two fly leafs got into the arc cavity completely, the contact was kept all the time between regulation gear and the rack to realize spacing to follow-up plate and fly leaf, and when the fly leaf shifted out from the arc cavity, in order to avoid the removal displacement volume of one of them fly leaf too big and lead to the removal of another fly leaf to be obstructed, this technical scheme is equipped with the baffle on two inner walls at arc cavity both ends respectively, sets up the round pin post on the follow-up plate, when the fly leaf moved to its maximum displacement volume from the arc cavity promptly, the terminal surface of two fly leafs contacted relatively, the contact of the inside wall of round pin post and baffle.
The end part of one movable plate is provided with a clamping groove, and the end part of the other movable plate is provided with a clamping pin matched with the clamping groove. Further, when two fly leaf tip butt joint each other, draw-in groove and bayonet lock cooperation for the fixed plate forms a stable enclosure with two fly leaves at cardboard I and II rotary motion's of cardboard in-process.
Arc grooves are formed in the end faces of the two ends of the fixing plate and are matched with the connectors. Further, when the casing is located the top of protection tube or when removing to the terminal of protection tube, each electrical part is in idle state in the casing, the arc recess at fixed plate both ends can the overlap joint on the joint, possess certain static friction power between arc recess and the joint outer wall, overlap completely with the casing and establish on the protection tube and compare, whole device and protection tube, the area of contact of joint is bigger, the atress is more balanced, avoid the device to take place to rotate on the protection tube, and driving motor and two-way motor's rotational speed is preset, each part that is in steady state can ensure that whole casing passes joint and connecting rod smoothly.
The cleaning assembly I and the cleaning assembly II are identical in structure, the cleaning assembly I comprises a major arc-shaped supporting plate, a plurality of arc-shaped brushes are arranged on the inner wall of the arc-shaped supporting plate at intervals along the axial direction of the arc where the supporting plate is located, an arc-shaped base plate is arranged between every two adjacent arc-shaped brushes, a plurality of rubber threads are arranged on the inner side of the base plate, the length of bristles of the arc-shaped brushes in the cleaning assembly I is L, the length of bristles of the arc-shaped brushes in the cleaning assembly II is M, and L & gt M is satisfied; when in use, the arc brush and the rubber thread are always kept in contact with the outer circumferential wall of the protection tube. Furthermore, the cleaning assembly I and the cleaning assembly II are identical in structure, the only difference is that the lengths of bristles of arc brushes of the cleaning assembly I and the cleaning assembly II are different, the cleaning assembly I performs primary cleaning on the protection pipe, the cleaning assembly II performs secondary cleaning on the protection pipe, when a cleaning process is executed, the bristles of the arc brushes deform and cling to the outer wall of the protection pipe, rubber threads contact with the outer wall of the protection pipe, the circumferential lengths of the two arc brushes on the cleaning assembly I and the cleaning assembly II, wrapping the outer wall of the protection pipe, are larger than the circumferential length of the protection pipe, and the two arc brushes are also located on two sides of the protection pipe, so that no dead angle in cleaning of the protection pipe can be guaranteed; similarly, when two rubber threads contact with the outer wall of the protection pipe, the sliding friction between the two threads is utilized, and the shell can be driven to move linearly along the axis of the protection pipe.
The central angle corresponding to the arc where the fixed plate is located is 200-240 degrees. Preferably, the central angle corresponding to the arc where the fixed plate is located is 200-240 degrees, most of the shell can be ensured to be wrapped on the protection pipe, wherein the two ends of the protection pipe are generally provided with 90-degree right angles, when the photo-thermal power generation system is shut down for maintenance, the cleaning device needs to be installed, firstly, the joint at the initial end of the protection pipe can be detached on the premise that the two movable plates are opened, then, the fixed plate is sleeved on the protection pipe along the axis of the protection pipe, and then, the joint is installed, so that the cleaning process can be started.
And a gap is reserved between the driving gear and the side wall of the arc-shaped cavity, which is opposite to the toothed belt II, and when the movable plate retracts towards the middle part of the arc-shaped cavity, the follow-up plate and the rack can penetrate through the gap. Preferably, because the space in the arc-shaped cavity is limited, in order to avoid mutual interference among all parts in the arc-shaped cavity, a gap is reserved between the driving gear and the side wall of the arc-shaped cavity, which is opposite to the toothed belt II, and the follow-up plate can penetrate through the gap after the movable plate retracts into the arc-shaped cavity.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the cleaning method for the outer circumferential wall of the fused salt pipe of the photo-thermal power generation system can regularly clean the protection pipe, can reduce the use cost of the photo-thermal power generation system, and simultaneously ensures the photo-thermal conversion efficiency of the fused salt;
2. the invention relates to a cleaning method for the outer circumferential wall of a fused salt pipe of a photo-thermal power generation system, wherein a cleaning assembly I and a cleaning assembly II have the same structure, and the only difference is that the lengths of bristles of arc brushes are different, the cleaning assembly I is used for cleaning a protective pipe for the first time, the cleaning assembly II is used for cleaning the protective pipe for the second time, when a cleaning process is executed, the bristles of the arc brushes are deformed and are tightly attached to the outer wall of the protective pipe, rubber threads are contacted with the outer wall of the protective pipe, the circumferential length of the outer wall of the protective pipe, which is wrapped by the two arc brushes on the cleaning assembly I and the cleaning assembly II, is larger than the circumferential length of the protective pipe, and the two arc brushes are also positioned on two sides of the protective pipe, so that the cleaning of.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic structural view of a molten salt pipe;
FIG. 2 is a sectional view of the molten salt pipe;
FIG. 3 is a cross-sectional view of the housing;
FIG. 4 is a schematic structural view of a cleaning assembly;
FIG. 5 is a drawing showing the cooperation of card I and card II.
Reference numbers and corresponding part names in the drawings:
the device comprises a protection pipe 1, a molten salt pipe 2, a toothed belt I3, a telescopic rod 4, a joint 5, a movable plate 6, a fixed plate 7, an arc-shaped groove 8, a clamping plate I9, a cleaning assembly I10, a connecting column 11, a bidirectional motor 12, a clamping plate II 13, a cleaning assembly II 14, a toothed belt II 15, a flange 16, a driving gear 17, an expansion joint 18, an adjusting gear 19, a follower plate 20, a rack 21, a pin column 22, an arc-shaped brush 23, a base plate 24 and a rubber thread 25.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
As shown in fig. 1 to 5, the present embodiment includes the following steps:
S1mounting the shell on the end of the protection tube 1;
S2the bidirectional motor 12 is started to drive the driving gear 17 to be matched with the toothed belt I3 and the toothed belt II 15 so as to drive the clamping plate I9, the cleaning assembly I10, the clamping plate II 13 and the cleaning assembly II 14 to synchronously rotate;
S3when the shell meets a joint on the protection pipe 1, firstly, two driving motors are started, and the two movable plates 6 synchronously rotate into the arc-shaped cavity until the opening of the fixed plate 7 is completely opened;
S4when the clamping plate I9 close to the joint 5 rotates to the position that the opening is opposite to the connecting rod, the clamping plate I9 sweeps the connecting rod while rotating and moving linearly, and the two bidirectional motors 12 continue to rotate until the clamping plate II 13 repeats the motion track of the clamping plate I9;
S5after the first clamping plate 9 and the second clamping plate 13 completely span the joint 5, the two driving motors are started again, so that the two movable plates 6 are moved out of the arc-shaped cavity again until the two movable plates 6 and the fixed plate 7 form a closed circular ring again;
S6openerThe bidirectional motor 12 is driven to drive the shell to move linearly around the protection tube 1 again until the next joint 5 on the protection tube 1 is met, the clamping plate I9 and the clamping plate II 13 repeat the same operation to finish the cleaning process of the outer wall of the whole protection tube 1;
wherein, the shell is arranged on the outer wall of the protective tube 1 in a sliding way, a plurality of telescopic rods 4 are arranged on the outer circumferential wall of the protective tube along the circumferential direction of the joint 5, the shell comprises a major arc-shaped fixed plate 7, an arc-shaped cavity is arranged inside the fixed plate 7, two ends of the arc-shaped cavity are opened, the end parts of the plurality of telescopic rods 4 are respectively connected with the closed end of the arc-shaped cavity, two minor arc-shaped movable plates 6 are respectively arranged at two ends of the arc-shaped cavity in a sliding way, two driving motors are arranged in the arc-shaped cavity, the output end of the driving motor is provided with an adjusting gear 19, the inner wall of each movable plate 6 is provided with a toothed belt I3, the end part of each movable plate 6 is provided with an arc-shaped follower plate 20, the follower plate 20 is arranged in the arc-shaped cavity, the inner wall of the follower plate 20 is provided with a rack 21 matched with the adjusting gear, flanges 16 matched with the arc holes are arranged in the arc holes, toothed belts II 15 are fixed on the outer side walls of the two flanges 16, the two toothed belts I3 and the toothed belts form a closed circular ring, a clamping plate I9 in a major arc shape is fixed on the inner side wall of one flange 16, a clamping plate II 13 in a major arc shape is fixed on the inner side wall of the other flange 16, the clamping plate I9 is connected with the clamping plate II 13 through a connecting column 11, two bidirectional motors 12 are arranged in the arc cavity, driving gears 17 matched with the toothed belts II 15 are arranged on two output ends of each bidirectional motor 12, a cleaning assembly I10 is arranged on the inner side wall of the clamping plate I9, and a cleaning assembly II 14 is arranged on the inner side wall of the clamping plate II 13; in an initial state, the fixed plate 7 and the two movable plates 6 are spliced into a complete circle, the clamping plate I9 and the clamping plate II 13 are sleeved on the outer circumferential wall of the protection tube 1, and the opening of the clamping plate I9 is opposite to the opening of the clamping plate II 13.
In this embodiment, in a specific implementation: under the initial condition, the casing is located the tip of protection tube 1, avoid causing the interference to fused salt pipe 2's heat absorption, and be the major arc form and cardboard I9 is relative with cardboard II 13's opening, cardboard I9 is located the both sides of protection tube 1 respectively with cardboard II 13 promptly, ensure that protection tube 1 both sides are all by the centre gripping, the ring cover that fixed plate 7 and two fly leaf 6 formed is established on protection tube 1 outer wall, start two-way motor 12, drive gear 17 and cingulum I3, cingulum II 15 cooperation, in order to drive cardboard I9, clearance subassembly I10 and cardboard II 13, clearance subassembly II 14 carries out synchronous revolution, utilize friction between clearance subassembly and the protection tube 1 and flexible pipe spacing in week, make the casing can carry out linear motion along protection tube 1.
It should be further noted that, in an initial state, the clamping plates i 9 and ii 13 are respectively located at two sides of the protection tube 1, that is, the clamping plates i 9 and ii 13 always have two clamping points on the protection tube 1 when the housing performs linear motion, the fixing plate 7, i 9 and ii 13 are all in a major arc shape, that is, the three have the same opening, on the premise of controlling the rotation speed of the bidirectional motor 12, the clamping plates i 9 and ii 13 can sweep over the joint 5 and the connecting rod in sequence, and the cleaning assembly i 10 and the cleaning assembly ii 14 are made of flexible rubber materials capable of generating certain deformation, that is, when contacting with the outer wall of the joint 5, the cleaning assembly i 10 and the cleaning assembly ii 14 locally generate deformation and then smoothly pass through the joint 5, the joint 5 is similar to a hoop, and the outer diameter is relatively small, so that the amount of local deformation generated by the cleaning assembly i 10 and the cleaning assembly ii 14 is relatively small, so that the resistance encountered when the cleaning assembly I10 passes through the cleaning assembly II 14 is smaller. Wherein, when passing through the joint 5 and the connecting rod, the toothed belt I3 and the toothed belt II 15 are always kept in contact with the driving gear 17. The telescopic rod 4 is composed of a plurality of telescopic sections 18 which are mutually clamped, and the outer diameters of the plurality of telescopic sections 18 are gradually delivered and are sequentially sleeved.
Preferably, the central angle corresponding to the arc where the fixed plate 7 is located is 200 to 240 degrees, most of the shell can be ensured to be wrapped on the protection tube 1, wherein the two ends of the protection tube 1 are generally provided with 90-degree right angles, when the photothermal power generation system is shut down for maintenance, the cleaning device needs to be installed, firstly, the joint 5 located at the initial end of the protection tube 1 can be detached on the premise that the two movable plates 6 are opened, then, the fixed plate 7 is sleeved on the protection tube 1 along the axis of the protection tube 1, and then, the joint 5 is installed, so that the cleaning process can be started.
Example 2
As shown in fig. 1 to 5, in this embodiment, on the basis of embodiment 1, baffles are respectively disposed on two inner walls at two ends of the arc-shaped cavity, and two side walls of each follower plate 20 are respectively provided with a pin 22, in an initial state, the follower plate 20 movably penetrates through a gap between the two baffles and then extends to the middle of the arc-shaped cavity, and the two pins 22 are respectively in contact with inner side walls of the baffles. When the two movable plates 6 completely enter the arc-shaped cavity, the adjusting gear 19 is always in contact with the rack 21 to limit the position of the follower plate 20 and the movable plates 6, and when the movable plates 6 are moved out of the arc-shaped cavity, in order to avoid the situation that the movement of one movable plate 6 is blocked due to the overlarge movement displacement of the other movable plate 6, the two inner walls at the two ends of the arc-shaped cavity are respectively provided with a baffle plate, the follower plate 20 is provided with a pin column 22, namely, when the movable plates 6 move to the maximum displacement from the arc-shaped cavity, the end surfaces of the two movable plates 6 are in relative contact, and the pin column 22 is in contact with the inner side wall of the baffle. When the ends of the two movable plates 6 are mutually butted, the clamping groove is matched with the clamping pin, and the fixed plate 7 and the two movable plates 6 form a stable closed shell in the process of rotationally moving the clamping plate I9 and the clamping plate II 13.
The cleaning assembly I10 and the cleaning assembly II 14 are identical in structure, the cleaning assembly I10 comprises a major arc-shaped supporting plate, a plurality of arc-shaped brushes 23 are arranged on the inner wall of the arc-shaped supporting plate at intervals along the axial direction of the arc where the supporting plate is located, an arc-shaped base plate 24 is arranged between every two adjacent arc-shaped brushes 23, a plurality of rubber threads 25 are arranged on the inner side of the base plate 24, the length of bristles of the arc-shaped brushes 23 in the cleaning assembly I10 is L, the length of bristles of the arc-shaped brushes 23 in the cleaning assembly II 14 is M, and L is larger than M; when in use, the arc-shaped brush 23 and the rubber thread 25 are always kept in contact with the outer circumferential wall of the protection tube 1. Further, the cleaning assembly I10 and the cleaning assembly II 14 are identical in structure, and the only difference is that the lengths of bristles of the arc brushes 23 are different, the cleaning assembly I10 primarily cleans the protection tube 1, the cleaning assembly II 14 secondarily cleans the protection tube 1, when a cleaning process is executed, the bristles of the arc brushes 23 are deformed and tightly attached to the outer wall of the protection tube 1, the rubber threads 25 are in contact with the outer wall of the protection tube 1, the circumferential lengths of the cleaning assembly I10 and the two arc brushes 23 on the cleaning assembly II 14, which wrap the outer wall of the protection tube 1, are larger than the circumference of the protection tube 1, and the two arc brushes 23 are also located on two sides of the protection tube 1, so that no dead angle can be guaranteed for cleaning the protection tube 1; similarly, when the two rubber threads 25 contact with the outer wall of the protection tube 1, the shell can be driven to move linearly along the axis of the protection tube 1 by using the sliding friction between the two rubber threads.
Example 3
As shown in fig. 1 to 5, in this embodiment, based on embodiment 1, arc-shaped grooves 8 are formed on end surfaces of two ends of the fixing plate 7, and the arc-shaped grooves 8 are engaged with the joints 5. When the casing is located the top of protection tube 1 or moves to the terminal of protection tube 1, each electrical part is in idle state in the casing, the arc recess 8 at fixed plate 7 both ends can the overlap joint on connecting 5, possess certain static friction power between arc recess 8 and the joint 5 outer wall, overlap completely with the casing and establish on protection tube 1 and compare, whole device and protection tube 1, the area of contact of joint 5 is bigger, the atress is more balanced, avoid the device to take place to rotate on protection tube 1, and driving motor and two-way motor 12's rotational speed is preset, each part at steady state can ensure that whole casing passes joint 5 and connecting rod smoothly.
Preferably, because the space in the arc-shaped cavity is limited, in order to avoid mutual interference between the components in the arc-shaped cavity, a gap is reserved between the driving gear 17 and the side wall of the arc-shaped cavity, which faces the toothed belt ii 15, and the follow-up plate 20 can pass through the gap after the movable plate 6 retracts into the arc-shaped cavity.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. A method for cleaning the outer circumferential wall of a molten salt tube of a photo-thermal power generation system is characterized by comprising the following steps:
S1mounting the shell on the end part of the protection tube (1);
S2the bidirectional motor (12) is started to drive the driving gear (17) to be matched with the toothed belt I (3) and the toothed belt II (15) so as to drive the clamping plate I (9), the cleaning assembly I (10), the clamping plate II (13) and the cleaning assembly II (14) to synchronously rotate;
S3when the shell meets a joint (5) on the protection tube (1), firstly, two driving motors are started, and two movable plates (6) synchronously rotate into the arc-shaped cavity until an opening of a fixed plate (7) is completely opened;
S4when the clamping plate I (9) close to the joint (5) rotates to the position that the opening is opposite to the connecting rod, the clamping plate I (9) sweeps the connecting rod while rotating and moving linearly, and the two bidirectional motors (12) continue to rotate until the clamping plate II (13) repeats the motion track of the clamping plate I (9);
S5after the clamping plate I (9) and the clamping plate II (13) completely span across the joint (5), the two driving motors are started again, so that the two movable plates (6) are moved out of the arc-shaped cavity again until the two movable plates (6) and the fixed plate (7) form a closed circular ring again;
S6starting a bidirectional motor (12) to drive the shell to move linearly around the protection tube (1) again until the next joint (5) on the protection tube (1) is met, and repeating the same operation on the clamping plate I (9) and the clamping plate II (13) to finish the cleaning process of the outer wall of the whole protection tube (1);
wherein the shell is arranged on the outer wall of the protective pipe (1) in a sliding manner, a plurality of telescopic rods (4) are arranged on the outer circumferential wall of the protective pipe along the circumferential direction of the joint (5), the shell comprises a major arc-shaped fixed plate (7), an arc-shaped cavity is formed in the fixed plate (7), two ends of the arc-shaped cavity are open, the end parts of the plurality of telescopic rods (4) are respectively connected with the closed end of the arc-shaped cavity, two minor arc-shaped movable plates (6) are respectively arranged at two ends of the arc-shaped cavity in a sliding manner, two driving motors are arranged in the arc-shaped cavity, an output end of each driving motor is provided with an adjusting gear (19), the inner wall of each movable plate (6) is provided with a toothed belt I (3), the end part of each movable plate (6) is provided with an arc-shaped follow-up plate (20), the follow-up plate (20) is arranged in the arc-shaped, two arc holes communicated with the arc cavity are formed in the inner wall of the arc along the circumferential direction of the arc where the fixing plate (7) is located, flanges (16) matched with the arc holes are arranged in the arc holes, toothed belts II (15) are fixed on the outer side walls of the two flanges (16), two toothed belts I (3) and the toothed belts (15) form a closed circular ring, a clamping plate I (9) in a major arc shape is fixed on the inner side wall of one flange (16), a clamping plate II (13) in a major arc shape is fixed on the inner side wall of the other flange (16), the clamping plate I (9) is connected with the clamping plate II (13) through a connecting column (11), two-way motors (12) are arranged in the arc cavity, driving gears (17) matched with the toothed belts II (15) are arranged on the two output ends of the two-way motors (12), and a cleaning assembly I (10) is arranged on the inner side wall of the clamping plate I (9), a cleaning component II (14) is arranged on the inner side wall of the clamping plate II (13); in an initial state, the fixed plate (7) and the two movable plates (6) are spliced into a complete circle, the clamping plate I (9) and the clamping plate II (13) are sleeved on the outer circumferential wall of the protection tube (1), and the clamping plate I (9) is opposite to the opening of the clamping plate II (13).
2. The method for cleaning the outer circumferential wall of the molten salt pipe of the photothermal power generation system according to claim 1, wherein: all be equipped with the baffle on two inner walls at arc cavity both ends, all be equipped with round pin post (22) on two lateral walls of each follow-up plate (20), under the initial condition, follow-up plate (20) activity runs through the clearance between two baffles and extends to arc cavity middle part, two round pin posts respectively with the inside wall contact of baffle.
3. The method for cleaning the outer circumferential wall of the molten salt pipe of the photothermal power generation system according to claim 1, wherein: the end part of one movable plate (6) is provided with a clamping groove, and the end part of the other movable plate (6) is provided with a clamping pin matched with the clamping groove.
4. The method for cleaning the outer circumferential wall of the molten salt pipe of the photothermal power generation system according to claim 1, wherein: arc-shaped grooves (8) are formed in the end faces of the two ends of the fixing plate (7), and the arc-shaped grooves (8) are matched with the connectors (5).
5. The method for cleaning the outer circumferential wall of the molten salt pipe of the photothermal power generation system according to claim 1, wherein: the cleaning assembly I (10) and the cleaning assembly II (14) are identical in structure, the cleaning assembly I (10) comprises a major arc-shaped supporting plate, a plurality of arc-shaped brushes (23) are arranged on the inner wall of the arc-shaped supporting plate at intervals in the axial direction of the arc where the supporting plate is located, an arc-shaped base plate (24) is arranged between every two adjacent arc-shaped brushes (23), a plurality of rubber threads (25) are arranged on the inner side of the base plate (24), the length of bristles of the arc-shaped brushes (23) in the cleaning assembly I (10) is L, the length of bristles of the arc-shaped brushes (23) in the cleaning assembly II (14) is M, and L is larger than M; when the protective pipe is used, the arc-shaped brush (23) and the rubber thread (25) are always kept in contact with the outer circumferential wall of the protective pipe (1).
6. The method for cleaning the outer circumferential wall of the molten salt tube for the photothermal power generation system according to any one of claims 1 to 5, wherein: the central angle corresponding to the arc where the fixed plate (7) is located is 200-240 degrees.
7. The method for cleaning the outer circumferential wall of the molten salt tube for the photothermal power generation system according to any one of claims 1 to 5, wherein: a gap is reserved between the driving gear (17) and the side wall of the arc-shaped cavity, which faces the toothed belt II (15), and when the movable plate (6) retracts towards the middle of the arc-shaped cavity, the follow-up plate (20) and the rack (21) can penetrate through the gap.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113567109A (en) * | 2021-07-26 | 2021-10-29 | 中国人民解放军总医院第八医学中心 | Safety valve inspection device |
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