CN211245859U

CN211245859U - Sand prevention device of cooling tower

Info

Publication number: CN211245859U
Application number: CN201921908395.XU
Authority: CN
Inventors: 朱益明; 徐胜刚; 李高峰; 吴海瑛
Original assignee: Shaoxing Shangyu Jintai Cooling Tower Co ltd
Current assignee: Shaoxing Shangyu Jintai Cooling Tower Co ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-08-14
Anticipated expiration: 2029-10-31

Abstract

The utility model discloses a sand prevention device of cooling tower, including device main part, filter screen, belt pulley and belt, the inside of device main part is provided with the filter screen, and is provided with the scraper blade in the device main part of filter screen front side, both ends all weld the connecting block about the scraper blade, and the lead screw has all been cup jointed to the connecting block, two the upper and lower both ends of lead screw all connect on device main part lateral wall through the bearing, two the lead screw bottom all is fixed with the belt pulley, two connect, left side through the belt between the belt pulley the one end that the lead screw extends to the device main part outside has all welded the handle. The utility model discloses make and also can clean the filter screen without the dismounting device main part, solved the clean comparatively inconvenient problem of current filter screen, reduced sand control device's the clean work load of filter screen, solved the problem that current clean structure can not be changed for the scraper blade can be clean the filter screen surface all the time.

Description

Sand prevention device of cooling tower

Technical Field

The utility model relates to a sand prevention device technical field specifically is a sand prevention device of cooling tower.

Background

The cooling tower is an evaporation heat dissipation device which exchanges heat with cold air through circulating cooling water, an air inlet is generally formed in the cooling tower in order to enable circulating water to be in contact with the cold air, a sand prevention device is arranged at the air inlet in order to prevent external sand and dust from entering the cooling tower through the air inlet, and after the sand prevention device is used for a long time, the outer surface of a filter screen of the sand prevention device is full of dust, so that the filter screen is blocked, and air inlet of the air inlet is influenced;

the existing part of the sand prevention device is provided with a cleaning structure, but the cleaning structure cannot be replaced, and after the cleaning structure is used for a long time, the surface of the cleaning structure is also worn and dirtied, so that the cleaning of the filter screen is incomplete, the blockage of the filter screen cannot be completely solved, and the normal use of the sand prevention device is still influenced, and therefore the sand prevention device of the cooling tower is urgently needed to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sand prevention device of cooling tower to it is clean comparatively inconvenient and the problem that belt cleaning device can not be changed to propose current sand prevention device in the above-mentioned background art to solve.

In order to achieve the above object, the utility model provides a following technical scheme: a sand prevention device of a cooling tower comprises a device main body, a filter screen, belt pulleys and a belt, wherein the filter screen is arranged in the device main body, a scraper is arranged in the device main body at the front side of the filter screen, connecting blocks are welded at the left end and the right end of the scraper, the connecting blocks are sleeved with the belt screws, the upper end and the lower end of each of the two belt screws are connected onto the side wall of the device main body through bearings, the bottoms of the two belt screws are fixed with the belt pulleys, the two belt pulleys are connected through the belt, a handle is welded at one end of the left side of each of the two screw screws extending to the outer side of the device main body, sponge strips are glued at the rear side of each scraper, fixing grooves matched with the scraper are formed in the inner sides of the two connecting blocks, fixing plates are arranged at the top ends of the fixing grooves, the front side ends of the, and the inside carriage release lever that is provided with of standing groove, the movable block has all been welded to the carriage release lever inboard, the carriage release lever surface all is equipped with the spring, and the both ends of spring all weld respectively on standing groove and movable block lateral wall, the pivot outside all seted up with movable block complex draw-in groove.

Preferably, the width between the scraper and the filter screen is smaller than the width of the sponge strip, and the height of the connecting block moving on the screw rod is larger than the height of the filter screen.

Preferably, the length of the sponge strip is greater than that of the filter screen, and the width of the fixing plate is greater than that of the sponge strip.

Preferably, two groups of clamping grooves are formed in the rotating shaft, and one group of clamping grooves is located on the left side of the other clamping groove.

Preferably, the moving block and the clamping groove are both arc-shaped, and the rotating shaft outside the clamping groove is welded with the limiting block.

Preferably, the length of the spring is greater than the length from the outer side wall of the fixed plate to the side wall of the moving block, and the length from the outer end of the moving rod to the side wall of the placing groove is greater than the length from the moving block to the inside of the clamping groove.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this sand prevention device of cooling tower is provided with the scraper blade, the connecting block, the lead screw, the belt pulley, the belt, handle and sponge strip, when needs are cleaned the filter screen, rotatory handle, make the handle drive left lead screw and rotate, lead screw that rethread belt pulley and belt drive the right side rotates, thereby drive the connecting block of both sides and reciprocate, thereby it reciprocates and strikes off the filter screen surface to drive the scraper blade, thereby clean the filter screen surface, after the cleanness, the handle rotates, make inside scraper blade retransferrer device main part top, make and also can clean the filter screen without the dismounting device main part, the clean comparatively inconvenient problem of current filter screen has been solved, the clear work load of filter screen of sand prevention device has been reduced.

2. This sand prevention device of cooling tower is provided with the fixed slot, the fixed plate, the apparatus further comprises a rotating shaft, the standing groove, the carriage release lever, the movable block, a spring, draw-in groove and stopper, when needs are changed scraper blade and sponge strip, at first stir the fixed plate, make the pivot extrusion movable block, drive movable block extrusion spring and remove to the standing groove is inside, thereby make the fixed plate rotate under the cooperation of pivot, after the fixed plate rotates 90, its spacing the relieving to the scraper blade, thereby pull out the scraper blade from the fixed slot is inside, after the completion is changed scraper blade and sponge strip, block to the fixed slot again with the scraper blade inside, make it again can to the spacing of scraper blade at the reverse rotation fixed plate, the problem that current clean structure can not change has been solved, make the scraper blade can be clean with the filter screen surface all.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic sectional view of the front view of the structure of the present invention;

FIG. 3 is a schematic top sectional view of the scraper of the present invention;

fig. 4 is an enlarged schematic view of the structure at a in fig. 3 according to the present invention;

fig. 5 is an enlarged schematic view of the structure at B in fig. 4 according to the present invention.

In the figure: 1. a device main body; 2. filtering with a screen; 3. a squeegee; 4. connecting blocks; 5. a screw rod; 6. a belt pulley; 7. a belt; 8. a handle; 9. a sponge strip; 10. fixing grooves; 11. a fixing plate; 12. a rotating shaft; 13. a placement groove; 14. a travel bar; 15. a moving block; 16. a spring; 17. a card slot; 18. and a limiting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides an embodiment: a sand prevention device of a cooling tower comprises a device main body 1, a filter screen 2, belt pulleys 6 and a belt 7, wherein the filter screen 2 is arranged inside the device main body 1, a scraper 3 is arranged in the device main body 1 at the front side of the filter screen 2, connecting blocks 4 are welded at the left end and the right end of the scraper 3, the connecting blocks 4 are sleeved with screw rods 5, the upper end and the lower end of each screw rod 5 are connected to the side wall of the device main body 1 through bearings, the belt pulleys 6 are fixed at the bottoms of the two screw rods 5, the two belt pulleys 6 are connected through the belt 7, a handle 8 is welded at one end of the left screw rod 5 extending to the outer side of the device main body 1, a sponge strip 9 is glued at the rear side of the scraper 3, the width from the scraper 3 to the filter screen 2 is smaller than that of the sponge strip 9, the moving height of the connecting blocks 4 on the screw rods 5 is larger than that, and guarantee that sponge strip 9 can strike off the filter screen 2 surface completely to make filter screen 2 surface clean complete.

The inner sides of the two connecting blocks 4 are both provided with fixing grooves 10 matched with the scraper 3, the top ends of the fixing grooves 10 are both provided with fixing plates 11, the front side ends of the fixing plates 11 are all sleeved on a rotating shaft 12, the length of the sponge strips 9 is greater than that of the filter screen 2, the width of the fixing plates 11 is greater than that of the sponge strips 9, the fixing plates are used for ensuring that the sponge strips 9 completely clean the filter screen 2 and ensuring that the fixing plates 11 can be completely abutted against the top ends of the scraper 3, so that the fixing plates 11 can be limited by the scraper 3, the scraper 3 can be firmly clamped in the fixing grooves 10, the scraper 3 is prevented from moving out of the fixing grooves 10 when the filter screen 2 is scraped, the bottom ends of the rotating shaft 12 are all welded on the connecting blocks 4, the fixing plates 11 are both provided with two groups of placing grooves 13, the placing grooves 13 are both provided, a set of draw-in groove 17 is located the left side of another draw-in groove 17, and its effect is for guaranteeing that fixed plate 11 can rotate to removing completely the fixed of scraper blade 3, and makes fixed plate 11 anticlockwise rotation, can not move connecting block 4 on lead screw 5 when guaranteeing that fixed plate 11 is rotatory and cause the influence, and guarantees that fixed plate 11 can fix through another draw-in groove 17 after rotating, prevents that fixed plate 11 from rotating the back and rocking. The inner sides of the moving rods 14 are all welded with moving blocks 15, the outer surfaces of the moving rods 14 are all sleeved with springs 16, two ends of each spring 16 are respectively welded on the side walls of the placing groove 13 and the moving block 15, the length of each spring 16 is greater than the length from the outer side wall of the fixing plate 11 to the side wall of the moving block 15, the length from the outer end of each moving rod 14 to the side wall of the placing groove 13 is greater than the length from the moving block 15 to the side wall of the clamping groove 17, the length is used for ensuring that the springs 16 are in a compressed state, when the moving blocks 15 rotate to the inside of the clamping grooves 17, the springs can be firmly abutted against the inside of the clamping grooves 17, so that the fixing plates 11 are limited and fixed, the fixing plates 11 can limit and fix the scraper plates 3, the clamping grooves 17 matched with the moving blocks 15 are formed in the outer sides, the effect is that the movable block 15 can move out of the clamping groove 17 under the action of extrusion force, so that the fixed plate 11 can rotate under the matching of the rotating shaft 12, and the fixed plate 11 is prevented from rotating towards the right side when the scraper 3 is in normal use, the connecting block 4 is influenced to move on the lead screw 5, and the clean structure can work normally.

The working principle is as follows: when needs are cleaned filter screen 2, rotation handle 8, make handle 8 drive left lead screw 5 and rotate, lead screw 5 on rethread belt pulley 6 and belt 7 drive the right side rotates, thereby drive connecting block 4 of both sides and reciprocate, thereby it reciprocates and strikes off filter screen 2 surface to drive scraper blade 3, thereby clean filter screen 2 surface, when scraper blade 3 removes to 1 bottom of device main part, but reverse rotation handle 8, strike off filter screen 2 surface cleanness many times, after the cleanness finishes, rotation handle 8, make inside scraper blade 3 moves back 1 top of device main part again, make and also can clean filter screen 2 without dismounting device main part 1.

When the scraper blade 3 and the sponge strip 9 need to be replaced, firstly, the fixed plate 11 is shifted, the moving block 15 is driven to rotate through the placing groove 13, the moving block 15 is extruded by the side wall of the clamping groove 17, the moving block 15 is driven to extrude the spring 16 to move out of the clamping groove 17 and move towards the inside of the placing groove 13, so that the fixed plate 11 rotates under the matching of the rotating shaft 12, after the fixed plate 11 rotates for 90 degrees, the limiting of the fixed plate 3 is relieved, the scraper blade 3 is pulled out of the inside of the fixed groove 10, after the scraper blade 3 and the sponge strip 9 are replaced, the scraper blade 3 is clamped to the inside of the fixed groove 10 again, the fixed plate 11 rotates in the reverse direction, the moving block 15 is clamped with the clamping groove 17 at the rear end again, and the.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a sand prevention device of cooling tower, includes device main part (1), filter screen (2), belt pulley (6) and belt (7), its characterized in that: the device is characterized in that a filter screen (2) is arranged in the device main body (1), a scraper (3) is arranged in the device main body (1) on the front side of the filter screen (2), connecting blocks (4) are welded at the left end and the right end of the scraper (3), lead screws (5) are sleeved on the connecting blocks (4), the upper end and the lower end of each lead screw (5) are connected to the side wall of the device main body (1) through bearings, belt pulleys (6) are fixed at the bottoms of the two lead screws (5), the two belt pulleys (6) are connected through belts (7), a handle (8) is welded at one end, extending to the outer side of the device main body (1), of each lead screw (5), a sponge strip (9) is glued at the rear side of the scraper (3), fixing grooves (10) matched with the scraper (3) are formed in the inner sides of the two connecting blocks (4), and fixing plates (11), and the front side end of the fixed plate (11) is sleeved on the rotating shaft (12), the bottom end of the rotating shaft (12) is welded on the connecting block (4), the fixed plate (11) is provided with a placing groove (13), the inside of the placing groove (13) is provided with a moving rod (14), the inner side of the moving rod (14) is welded with a moving block (15), the outer surface of the moving rod (14) is sleeved with a spring (16), the two ends of the spring (16) are respectively welded on the side walls of the placing groove (13) and the moving block (15), and the outer side of the rotating shaft (12) is provided with a clamping groove (17) matched with the moving block (15).

2. A sand control device for a cooling tower according to claim 1, wherein: the width between scraper blade (3) to filter screen (2) is less than the width of sponge strip (9), the height that connecting block (4) moved on lead screw (5) is greater than the height of filter screen (2).

3. A sand control device for a cooling tower according to claim 1, wherein: the length of sponge strip (9) all is greater than the length of filter screen (2), the width of fixed plate (11) all is greater than the width of sponge strip (9).

4. A sand control device for a cooling tower according to claim 1, wherein: two groups of clamping grooves (17) are formed in the rotating shaft (12), and one group of clamping grooves (17) are located on the left side of the other clamping groove (17).

5. A sand control device for a cooling tower according to claim 1, wherein: the moving block (15) and the clamping groove (17) are both arc-shaped, and the rotating shaft (12) on the outer side of the clamping groove (17) is welded with a limiting block (18).

6. A sand control device for a cooling tower according to claim 1, wherein: the length of the spring (16) is greater than the length from the outer side wall of the fixing plate (11) to the side wall of the moving block (15), and the length from the outer end of the moving rod (14) to the side wall of the placing groove (13) is greater than the length from the moving block (15) to the inside of the clamping groove (17).