CN210625464U - Flushing device for indirect cooling tower - Google Patents
Flushing device for indirect cooling tower Download PDFInfo
- Publication number
- CN210625464U CN210625464U CN201921452886.8U CN201921452886U CN210625464U CN 210625464 U CN210625464 U CN 210625464U CN 201921452886 U CN201921452886 U CN 201921452886U CN 210625464 U CN210625464 U CN 210625464U
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- gear
- cooling tower
- flushing
- indirect cooling
- frame
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Abstract
The utility model relates to the technical field of indirect cooling tower cleaning, in particular to a flushing device of an indirect cooling tower; the device comprises an annular track arranged along the circumferential direction of the indirect cooling tower, a rack arranged on the annular track, a flushing device arranged on the rack, a first driving device, a second driving device, an angle changing device and a PLC control box; the flushing device can accurately prolong the flushing pipe along with flushing, avoids the need of repeatedly connecting and pulling the belt by a specially-assigned person in the flushing process, and can prevent winding; the utility model discloses in the use, be the mode of washing from windward side to leeward side, can follow the finned tube secondary that solves present washing unit at all and wash the cause and block up, owing to be that windward washes to the leeward, can not follow wind once more after the dust foreign matter washes and the secondary blocks up the finned tube, has improved the flushing efficiency to can strengthen intercooling unit operation economy.
Description
Technical Field
The utility model relates to an indirect cooling tower washs technical field, concretely relates to indirect cooling tower washing unit.
Background
The indirect air cooling system is a cold end system which utilizes closed circulating water to cool the low-pressure cylinder steam exhaust of the unit and then utilizes an indirect cooling tower to suck the circulating water after air cooling and heating, in recent years, the direct air cooling effect is not added, the vacuum system is huge, the influence of transverse wind is large, and the power consumption rate is high, the indirect air cooling system is generally adopted in northwest areas, the unit is as small as 330MW, the unit is as large as 1000MW and above, the indirect air cooling system adopts the indirect cooling system, and currently, the direct air cooling system has a unique finned tube bundle flushing device, and the indirect air cooling is generally a flushing device carried by an air cooling manufacturer along with the indirect cooling system;
the arrangement mode of a flushing device of an indirect cooling system of a manufacturer is that a flushing high-pressure pump is generally placed inside an indirect cooling tower, water is injected through a flushing ring pipe close to the inside, the flushing device and a water injection system need to be manually communicated, the flushing direction is flushed against the wind direction, flushed dirt is difficult to discharge to the outside due to the blocking of an external louver, most of the dirt is remained between a cooling triangle and the louver, the dirt returns to a fin tube bundle due to the action of wind power after the louver is opened, the dirt is re-attached to the fin tube bundle after being flushed for a long time, the heat exchange efficiency of the indirect cooling system is always low, so that an indirect cooling unit generally requires external personnel to manually flush the dirt of the fin tube bundle, manpower and material resources are wasted, and the flushing device of the manufacturer is idle;
in view of the above situation, how to achieve the purpose of ensuring clean washing without manual operation during washing is an urgent need in the art for saving manpower and material resources for an indirect cooling unit and improving the cooling efficiency of an indirect cooling system.
SUMMERY OF THE UTILITY MODEL
To the problem mentioned among the prior art, the utility model provides an intercooling tower washing unit can solve manpower and materials, improves the cleaning efficiency.
The utility model relates to an indirect cooling tower washing unit, include the circular orbit that sets up along indirect cooling tower circumference, set up frame on the circular orbit and set up the washing unit in the frame, still include first drive arrangement, second drive arrangement, angle change device and PLC control box, first drive arrangement links to each other and drive the frame along the circular orbit removal with the frame, and second drive arrangement links to each other and drives washing unit and reciprocates along the frame with washing unit, and angle change device links to each other with washing unit, the PLC control box links to each other with first drive arrangement, second drive arrangement and washing unit respectively.
Preferably, the angle changing device comprises a first gear and a first micro motor, and the first gear is in meshed connection with a gear shaft of the first micro motor.
Preferably, the flushing device comprises a high-pressure nozzle and a flushing pipe, one end of the flushing pipe is connected with a water source, the other end of the flushing pipe is connected with the high-pressure nozzle, the flushing device further comprises a vertical shaft and a second micro motor, the flushing pipe is wound on the vertical shaft, a second gear is further arranged at the top of the vertical shaft, and the second gear is meshed with a gear shaft of the second micro motor.
Preferably, the high-pressure spray head is arranged in a V shape.
Preferably, the annular track is of an outer ring tooth structure, and the annular track is welded on a cooling triangle of the external diameter of the indirect cooling tower.
Preferably, the first driving device comprises a first motor, a third gear and a traveling wheel set, the third gear is arranged at the top of the frame, the first motor is connected with the annular rail through the third gear, and the traveling wheel set is arranged at the top and the bottom of the frame.
Preferably, the walking wheel set comprises walking wheels arranged along the horizontal direction and walking wheels arranged along the vertical direction, and the walking wheel set is connected with the cooling triangle in a rolling manner.
Preferably, the second driving device comprises a roller group arranged at the top of the frame and a steel wire rope, one end of the steel wire rope is connected with the flushing device, the other end of the steel wire rope bypasses the roller group and is connected with the roller group, the second driving device further comprises a fourth gear and a second motor, and the second motor is connected with the roller group through the fourth gear.
Compared with the prior art, the utility model, following technological effect has been gained:
compared with the existing flushing device, the walking mode is improved, the gear meshing mode is utilized for positioning, and the position of the rack can be accurately positioned;
the flushing device can accurately prolong the flushing pipe along with flushing, avoids the need of repeatedly connecting and pulling the belt by a specially-assigned person in the flushing process, and can prevent winding;
the full-automatic operation of the whole device is controlled by the PLC control box, which is different from the existing semi-automatic mode requiring manual flushing, and a large amount of manpower can be saved;
the utility model discloses in the use, be the mode of washing from windward side to leeward side, can follow the finned tube secondary that solves present washing unit at all and wash the cause and block up, owing to be that windward washes to the leeward, can not follow wind once more after the dust foreign matter washes and the secondary blocks up the finned tube, has improved the flushing efficiency to can strengthen intercooling unit operation economy.
Drawings
FIG. 1 is a front view of the present invention;
fig. 2 is a top view of the present invention;
FIG. 3 is a schematic view of the flushing device of the present invention;
FIG. 4 is a schematic view of the flush tube of the present invention;
fig. 5 is a schematic view of a first driving device of the present invention;
fig. 6 is a top view of the flushing device in operation.
Reference numerals: 1-an indirect cooling tower; 2-a shutter; 3-an annular track; 4-cooling the triangle; 5-a washing device; 6-a PLC control box; 7-a frame; 8-an angle changing device; 9-a nozzle; 10-a steel wire rope; 11-a flushing pipe; 12-high pressure spray head; 13-roller group; 14-a fourth gear; 15-vertical axis; 16-a second gear; 17-a travelling wheel set; 18-third gear.
Detailed Description
Examples
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 6, the utility model relates to an indirect cooling tower washing unit, include the circular orbit 3 that sets up along indirect cooling tower 1 circumference, set up frame 7 on circular orbit 3 and set up washing unit 5 in frame 7, still include first drive arrangement, second drive arrangement, angle change device 8 and PLC control box 6, first drive arrangement links to each other and drives frame 7 and remove along circular orbit 3 with frame 7, and second drive arrangement links to each other and drives washing unit 5 and reciprocates along frame 7 with washing unit 5, and angle change device 8 links to each other with washing unit 5, PLC control box 6 links to each other with first drive arrangement, second drive arrangement and washing unit 5 respectively. The angle changing device 8 comprises a first gear and a first micro motor, and the first gear is meshed with a gear shaft of the first micro motor. The flushing device 5 comprises a high-pressure nozzle 12 and a flushing pipe 11, one end of the flushing pipe 11 is connected with a water source, the other end of the flushing pipe 11 is connected with the high-pressure nozzle 12, the flushing device further comprises a vertical shaft 15 and a second micro motor, the flushing pipe 11 is wound on the vertical shaft 15, a second gear 16 is further arranged at the top of the vertical shaft 15, and the second gear 16 is meshed with a gear shaft of the second micro motor. The high-pressure spray head 12 is arranged in a V shape.
In this embodiment, washing unit 5 can rotate through angle changing device 8, when first micro motor drives first gear rotation, then drive washing unit 5 and can rotate, rotation angle is between 0 ~90, it should be explained that washing unit 5 comprises high pressure nozzle 12 and flushing pipe 11, be provided with a plurality of nozzles 9 on high pressure nozzle 12, some nozzles 9 are used for cooling 4 one side of triangle, another part is used for wasing the another side of cooling triangle 4, when wasing, high pressure nozzle 12 passes through angle changing device 8 and rotates 90 backs, make high pressure nozzle 12 and cooling triangle 4 keep perpendicular, rethread second drive arrangement drives washing unit 5 and reciprocates and can accomplish the washing to cooling triangle 4.
In the cleaning process, because frame 7 can follow circular orbit 3 and remove, washing unit 5 can reciprocate along frame 7 simultaneously, then flushing pipe 11 need keep enough length, otherwise can block, consequently be provided with vertical axis 15, set up flushing pipe 11 winding on vertical axis 15, vertical axis 15 top is equipped with continuous second gear 16 and second micro motor simultaneously, second micro motor drives second gear 16 rotatory, and second gear 16 drives vertical axis 15 rotatory simultaneously, can carry out positive and negative rotation according to actual conditions to adjust flushing pipe 11 length.
As shown in fig. 5, the annular track 3 is of an outer ring tooth structure, and the annular track 3 is welded on a cooling triangle 4 on the outer diameter of the indirect cooling tower 1. The first driving device comprises a first motor, a third gear 18 and a traveling wheel set 17, the third gear 18 is arranged at the top of the rack 7, the first motor is connected with the annular rail 3 through the third gear 18, and the traveling wheel set 17 is arranged at the top and the bottom of the rack 7. The walking wheel set 17 comprises walking wheels arranged in the horizontal direction and walking wheels arranged in the vertical direction, and the walking wheel set 17 is connected with the cooling triangle 4 in a rolling manner.
In this embodiment, the top of the frame 7 is provided with a third gear 18, the third gear 18 is connected with the frame 7 through a bracket, since the third gear 18 is engaged with the annular track 3, and the third gear 18 is also connected with a gear shaft arranged on the first motor, the first motor drives the third gear 18 to rotate, and the third gear 18 rotates around the annular track 3, so as to drive the frame 7 to move around the annular track 3; the walking wheel set 17 arranged at the top and the bottom of the frame 7 can ensure that the frame 7 can move freely, each counter force can be balanced, the positioning accuracy of the device is ensured, each walking wheel is connected with the frame 7 through a supporting rod, and the walking wheels roll on the cooling triangle 4 for moving positioning.
As shown in fig. 3, the second driving device includes a roller set 13 and a steel wire rope 10 arranged at the top of the frame 7, one end of the steel wire rope 10 is connected with the flushing device 5, and the other end of the steel wire rope bypasses the roller set 13 and is connected with the roller set 13, wherein the second driving device further includes a fourth gear 14 and a second motor, and the second motor is connected with the roller set 13 through the fourth gear 14.
In this embodiment, roller train 13 includes two gyro wheels that are located same horizontal plane, link to each other through the major axis between the gyro wheel, the major axis other end still overlaps and is equipped with fourth gear 14, wherein, the fourth gear 14 other end still links to each other with the gear shaft on the second motor, wire rope 10 one end winding sets up at roller train 13 and links to each other with it, the other end links to each other with washing unit 5, drive fourth gear 14 through the second motor and rotate, drive the roller train 13 that links to each other and rotate, thereby it reciprocates to drive washing unit 5 through the wire rope 10 that links to each other and realize in frame 7, can be according to particular case, adjust the second motor just reversing and realize reciprocating.
When using the PLC control, assuming that the center distance of each cooling cam 4 is L, the number of teeth of the third gear 18 connected to the circular track 3 of the frame 7 is N1, the gear radius is R1, the height of the cooling cam 4 is H, and the number of teeth of the second gear 16 on the vertical shaft 15 is N2, the gear radius is R2, it is ensured that
Therefore, when the vertical shaft 15 moves along the circular track 3 along with the frame 7, simultaneous equidistance rotation can be ensured, and the number of gear teeth of the fourth gear 14 arranged on the frame 7 is N3, and the radius is R3.
Assuming that the time period for the flushing device 5 to move along the frame 7 from top to bottom is T1, the time period for the frame 7 to move along the circular track 3 is T2, the time period for the flushing device 5 to move along the frame 7 from bottom to top is T3, and the time period for the vertical shaft 15 to rotate is T4, when T4= T2, the program is as follows:
firstly, setting the initial position of a flushing device 5 at the uppermost part of a first cooling triangle 4, moving the flushing device 5 from top to bottom along a rack 7 for flushing, changing the direction of a fourth gear 14 through forward and reverse rotation of a second motor when the flushing device is used T1, moving the flushing device 5 from bottom to top, setting the movement time of the rack 7 along the annular track 3 to be T2, simultaneously keeping the rotation time of a vertical shaft 15 to be T4, then stopping working, cleaning the cooling triangle 4 by the flushing device 5 from bottom to top, using T3, and repeating T1, changing the moving direction of the flushing device 5-T2-flushing again-T33-T1, until n T1 are finished, the cooling triangle 4 of the whole indirect cooling tower 1 is flushed, and then the process is reversed until the initial position is reached. Wherein n is 4 numbers of cooling triangles
，
。
During the application, through PLC control box 6 control first drive arrangement drive frame 7 along 3 to the required abluent cooling triangle 4 positions of endless track, washing unit 5 passes through the drive of second drive arrangement and carries out from top to bottom in the all-round washing by supreme down cooling triangle 4, and this process is repeated afterwards until all cooling triangles 4 wash.
Claims (8)
1. The utility model provides an indirect cooling tower washing unit, includes along indirect cooling tower (1) circumference set up circular orbit (3), frame (7) and the washing unit (5) of setting on frame (7) on circular orbit (3), its characterized in that, still includes first drive arrangement, second drive arrangement, angle change device (8) and PLC control box (6), first drive arrangement links to each other and drives frame (7) and remove along circular orbit (3) with frame (7), and second drive arrangement links to each other and drives washing unit (5) and reciprocates along frame (7), and angle change device (8) link to each other with washing unit (5), PLC control box (6) link to each other with first drive arrangement, second drive arrangement and washing unit (5) respectively.
2. The indirect cooling tower flushing device according to claim 1, wherein the angle changing device (8) comprises a first gear and a first micro motor, and the first gear is meshed with a gear shaft of the first micro motor.
3. The indirect cooling tower flushing device according to claim 2, wherein the flushing device (5) comprises a high-pressure spray head (12) and a flushing pipe (11), one end of the flushing pipe (11) is connected with a water source, the other end of the flushing pipe is connected with the high-pressure spray head (12), a vertical shaft (15) and a second micro motor are further included, the flushing pipe (11) is wound on the vertical shaft (15), a second gear (16) is further arranged at the top of the vertical shaft (15), and the second gear (16) is meshed with a gear shaft of the second micro motor.
4. An indirect cooling tower flushing device according to claim 3, characterized in that the high-pressure nozzles (12) are arranged in a "V" shape.
5. An indirect cooling tower flushing device according to claim 4, characterized in that the annular track (3) is of an outer ring tooth structure, and the annular track (3) is welded on a cooling triangle (4) of the external diameter of the indirect cooling tower (1).
6. An indirect cooling tower flushing device according to claim 5, characterized in that the first driving device comprises a first motor, a third gear (18) and a traveling wheel set (17), the third gear (18) is arranged on the top of the frame (7), wherein the first motor is connected with the circular track (3) through the third gear (18), and the traveling wheel set (17) is arranged on the top and the bottom of the frame (7).
7. The indirect cooling tower flushing device of claim 6, wherein the traveling wheel set (17) comprises traveling wheels arranged in the horizontal direction and traveling wheels arranged in the vertical direction, and the traveling wheel set (17) is in rolling connection with the cooling triangle (4).
8. The indirect cooling tower flushing device according to claim 7, wherein the second driving device comprises a roller set (13) arranged at the top of the frame (7) and a steel wire rope (10), one end of the steel wire rope (10) is connected with the flushing device (5), the other end of the steel wire rope bypasses the roller set (13) and is connected with the roller set (13), and the indirect cooling tower flushing device further comprises a fourth gear (14) and a second motor, and the second motor is connected with the roller set (13) through the fourth gear (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921452886.8U CN210625464U (en) | 2019-09-03 | 2019-09-03 | Flushing device for indirect cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921452886.8U CN210625464U (en) | 2019-09-03 | 2019-09-03 | Flushing device for indirect cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210625464U true CN210625464U (en) | 2020-05-26 |
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ID=70763100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921452886.8U Expired - Fee Related CN210625464U (en) | 2019-09-03 | 2019-09-03 | Flushing device for indirect cooling tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210625464U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411273A (en) * | 2019-09-03 | 2019-11-05 | 中国大唐集团科学技术研究院有限公司西北电力试验研究院 | A kind of indirect cool tower flusher |
-
2019
- 2019-09-03 CN CN201921452886.8U patent/CN210625464U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411273A (en) * | 2019-09-03 | 2019-11-05 | 中国大唐集团科学技术研究院有限公司西北电力试验研究院 | A kind of indirect cool tower flusher |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200526 Termination date: 20200903 |