Connecting structure of water diversion nozzle of cooling tower

Abstract

The utility model relates to a connecting structure of a water diversion nozzle of a cooling tower. The connecting structure comprises a connecting pipe, a water conveying pipe and a limiting piece, the lower end of the connecting pipe communicates with the nozzle body, the upper end of the connecting pipe is connected with a connecting ring, the top face of the connecting ring is concavely provided with a first annular groove clamped outside the lower end of the water conveying pipe, connecting rods are annularly arrayed on the top face of the connecting ring outside the first annular groove, and each connecting rod is provided with a limiting groove. The limiting piece comprises a fixing column and a limiting rod, the fixing column is fixedly arranged outside the water conveying pipe in a sleeving mode, a limiting groove of each connecting rod extends upwards into the fixing column, a second annular groove is formed in the outer wall of the fixing column in a sunken mode, driving rings are arranged in the upper portion and the lower portion of the second annular groove in a sliding mode, an elastic plate is connected between the opposite faces of the two driving rings, and the limiting rod is connected to the elastic plate. And a screw rod for driving the two driving rings to move oppositely or oppositely is arranged on the fixed column. The utility model solves the problems that the bolt for connecting the nozzle main body and the water delivery pipe on the water diversion nozzle is easy to rust and the nozzle main body is inconvenient to replace.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling towers, in particular to a connection structure of a water distribution nozzle of a cooling tower. Background Art

[0002] A cooling tower is a device that uses water as a circulating coolant, absorbing heat from the system and discharging it into the atmosphere to reduce the water's temperature. The cooling tower's water distribution nozzles, also known as sprinkler heads or water distributors, primarily disperse water into a mist of fine droplets. These droplets, under the influence of air flow, fully contact and exchange heat with the air, thereby achieving the cooling effect of the cooling water.

[0003] The connection between the nozzle body and the water pipe on the water distribution nozzle is mainly through bolt connection. The authorization publication number CN221325225 U "A cooling tower nozzle installation device" mentioned that the bolts are in a humid environment and are easily corroded, causing the connection between the nozzle body and the water pipe to loosen. Moreover, when replacing the nozzle body, the bolts need to be tightened multiple times, which is inconvenient to operate and results in low efficiency in replacing the nozzle body. Summary of the Invention

[0004] In order to solve the problems that the bolts for connecting the nozzle body and the water pipe on the water distribution nozzle are easily corroded and the nozzle body is inconvenient to replace, the utility model provides a connection structure of the water distribution nozzle of a cooling tower, which can prevent the connection between the nozzle body and the water pipe from loosening and is convenient for replacement.

[0005] In order to solve the above problems, the technical solution of the present utility model is:

[0006] The top of the connecting ring is recessed with a first annular groove that is stuck on the outside of the lower end of the water delivery pipe. A connecting rod is arranged in an annular array on the top of the connecting ring outside the first annular groove, and each connecting rod is provided with a limiting groove on the side opposite to the outer wall of the water delivery pipe. The limiting member comprises a fixing column and a limiting rod. The fixing column is sleeved and fixed on the outside of the water delivery pipe, and the limiting groove of each connecting rod extends upward into the fixing column. The outer wall of the fixing column is recessed with a second annular groove whose opening is blocked by a ring plate. A driving ring is slidingly provided in the upper and lower parts of the second annular groove. An elastic plate corresponding to the connecting rod and protruding toward the connecting rod is connected between the opposite surfaces of the two driving rings. The elastic plate is connected to the limiting rod with a free end extending into the limiting groove on the corresponding connecting rod. The fixing column is provided with a screw that drives the two driving rings to move relative to or away from each other.

[0007] Furthermore, the ring width of the annular groove 1 corresponds to the wall thickness of the water pipe, and a sealing gasket is provided on the bottom surface of the annular groove 1; the limit groove on the connecting rod on the left is a right-angled triangular groove with a straight bottom surface, an inclined surface with the upper end tilted to the left on the right side, and an open left end.

[0008] Furthermore, a blind hole corresponding to each connecting rod is opened on the bottom surface of the fixing column, and the free end of the limiting rod passes through the outer side surface of the blind hole and presses against the inclined surface of the limiting groove on the corresponding connecting rod.

[0009] Furthermore, when the inner side surface of each elastic plate contacts the side surface of the second ring groove, the free end of each limiting rod presses against the lower part of the inclined surface of the corresponding limiting groove, and there is a distance between the upper end of each connecting rod and the top surface of the blind hole in which it is located, and the sealing gasket in the first ring groove is compressed to the limit state.

[0010] Furthermore, the screw is threadedly connected to two driving rings, and the upper and lower parts of the circumferential wall of the screw are provided with thread one and thread two with opposite thread rotation directions. The lower end of the screw is rotatably connected to the inner bottom surface of the ring groove two, and the upper end is movable through the fixed column on the upper side of the ring groove two and is connected to a rotating plate.

[0011] Furthermore, a through hole is provided on the side of the annular groove 2 for each limiting rod to move through; when the two driving rings move back to back and contact the upper and lower inner surfaces of the annular groove 2 respectively, the free end of the limiting rod on each elastic plate is located in the corresponding through hole; when the lower end of the water pipe extends into the annular groove 1 and the sealing gasket is in a natural state, the upper part of the inclined surface of the limiting groove of each connecting rod is opposite to the inside and outside of the corresponding through hole.

[0012] Through the above technical solution, the beneficial effects of the utility model are:

[0013] The utility model drives the two driving rings to move relative to each other, so that each elastic plate drives the limiting rod to limit the limiting groove on the connecting rod, so that the connecting pipe and the nozzle body can be fixed to the water pipe. The free end of each limiting rod presses against the inclined surface of the limiting groove, driving each connecting rod to move upward. Multiple connecting rods drive the chain to move upward, and the sealing gasket in the ring groove is compressed to the limit state; the water pipe can be sealed and connected to the chain to avoid water leakage; conversely, the connecting pipe and the nozzle body are easy to disassemble.

[0014] The screw rod used for driving the two driving rings to move is located in the second ring groove, thereby avoiding erosion by moisture and reducing rust. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 It is a sectional front view of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the connection between the connecting pipe, the connecting ring and the nozzle body of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the fixed column of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the connection between the drive ring, the screw rod and the elastic plate of the utility model.

[0020] The numbers in the accompanying drawings are: 1. connecting pipe, 2. water pipe, 3. nozzle body, 4. connecting ring, 5. ring groove 1, 6. connecting rod, 7. limiting groove, 8. fixing column, 9. limiting rod, 10. ring groove 2, 11. through hole, 13. driving ring, 14. elastic plate, 15. sealing gasket, 16. screw, 17. blind hole, 18. thread 1, 19. thread 2, 20. rotating plate, 21. through hole, 22. ring plate. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0022] like Figures 1 to 5 As shown, a connection structure of a cooling tower water distribution nozzle comprises a connecting pipe 1, a water pipe 2 and a limiter; the connecting pipe 1 and the water pipe 2 are circular tubes with the same diameter, the lower end of the connecting pipe 1 is connected to the nozzle body 3, and the upper end is connected to a link 4, the link 4 is a circular ring with an inner diameter smaller than the inner diameter of the connecting pipe 1 and an outer diameter larger than the outer diameter of the connecting pipe 1, the top surface of the link 4 is recessed with an annular groove 5 that is stuck outside the lower end of the water pipe 2, and the top surface of the link 4 outside the annular groove 5 is provided with a connecting rod 6 in an annular array, the connecting rod 6 is a rectangular rod, and a limit groove 7 is provided on the side of each connecting rod 6 that is opposite to the outer wall of the water pipe 2; the limiter comprises a fixing column 8 and a limit rod 9, the fixing column is a cylinder, the fixing column 8 is fixed to the outside of the water pipe 2 through a through hole 11 opened in the middle, and the limit groove 7 of each connecting rod 6 extends upward into the fixing column 8 Inside, the outer wall of the fixed column 8 is recessed with a ring groove 210, the opening of which is blocked by a ring plate 22. A driving ring 13 is slidably provided in the upper and lower parts of the ring groove 210. The driving ring 13 is a circular ring body, and the inner ring surface of the driving ring 13 slides in contact with the side surface of the ring groove 210, and the outer ring surface slides in contact with the ring plate 22. The side surface of the ring groove 2 is the side surface opposite to the opening of the ring groove 2; an elastic plate 14 corresponding to the connecting rod 6 and protruding toward the connecting rod 6 is connected between the opposite surfaces of the two driving rings 13. The elastic plate 14 is made of spring steel material and is a rectangular plate bent into an arc plate. The elastic plate 14 is connected to a limiting rod 9 with a free end extending into the corresponding connecting rod 6 and in the limiting groove 7. The limiting rod 9 is a rectangular rod; a screw 16 is provided on the fixed column 8 to drive the two driving rings 13 to move relative to or away from each other.

[0023] The ring width of the annular groove 5 corresponds to the wall thickness of the water pipe 2. A sealing gasket 15 is provided on the bottom surface of the annular groove 5. The sealing gasket 15 is an annular body made of elastic rubber; the limiting groove 7 on the left side of the connecting rod 6 is a right-angled triangular groove with a straight bottom surface, an inclined surface with the upper end tilted to the left on the right side, and an open left end.

[0024] A blind hole 17 corresponding to each connecting rod 6 is provided on the bottom surface of the fixing column 8. The blind hole 17 is a rectangular hole. The free end of the limiting rod 9 passes through the outer side surface of the blind hole 17 and presses against the inclined surface of the limiting groove 7 on the corresponding connecting rod 6; the outer side surface of the blind hole is the side surface close to the second ring groove.

[0025] When the inner side surface of each elastic plate 14 contacts the side surface of the annular groove 2 10, the free end of each limiting rod 9 presses against the lower part of the inclined surface of the corresponding limiting groove 7. There is a distance between the upper end of each connecting rod 6 and the inner top surface of the blind hole 17, and the sealing gasket 15 in the annular groove 1 5 is compressed to the limit state; the inner side surface of the elastic plate is the side surface facing the corresponding blind hole.

[0026] The screw 16 is threadedly connected to the two drive rings 13. The upper and lower parts of the peripheral wall of the screw 16 are provided with a thread 18 and a thread 2 19 with opposite thread rotation directions. The threaded hole on the upper drive ring 13 corresponds to the thread 18, and the threaded hole on the lower drive ring 13 corresponds to the thread 2 19. The lower end of the screw 16 is rotatably connected to the inner bottom surface of the ring groove 2 10, and the upper end is movably connected to the fixed column 8 on the upper side of the ring groove 2 10 and is connected to a rotating plate 20; the bottom surface of the rotating plate 20 slides in contact with the top surface of the fixed column 8.

[0027] A through hole 21 is provided on the side of the annular groove 10 for each limiting rod 9 to move through; when the two driving rings 13 move away from each other and contact the upper and lower inner surfaces of the annular groove 10 respectively, the free end of the limiting rod 9 on each elastic plate 14 is located in the corresponding through hole 21; when the lower end of the water pipe 2 extends into the annular groove 1 5 and the sealing gasket 15 is in a natural state, the upper portion of the inclined surface of the limiting groove 7 of each connecting rod 6 is opposite to the inside and outside of the corresponding through hole 21.

[0028] The ring plate 22 is an annular plate body with two open ends formed by connecting two arc plates; the driving ring 13 is a circular ring plate formed by connecting two semicircular plates.

[0029] Before installation, rotate the screw 16 to move the two drive rings 13 away from each other until the two drive rings 13 contact the upper and lower inner surfaces of the second ring groove 10 respectively. At this time, the free end of the limit rod 9 on each elastic plate 14 is located in the corresponding through hole 21;

[0030] During installation, the lower end of the water pipe 2 is inserted into the ring groove 5 on the link 4, and the lower end of the water pipe 2 contacts the sealing gasket 15. At this time, the upper part of each connecting rod 6 together with the limiting groove 7 on the connecting rod 6 are inserted into the corresponding blind hole 17, and the upper part of the inclined surface of the limiting groove 7 of each connecting rod 6 is opposite to the corresponding through hole 21 inside and outside; the screw 16 is rotated in the opposite direction to make the two driving rings 13 move relative to each other. When the two driving rings 13 move relative to each other, the protrusion of each elastic plate 14 moves toward the corresponding connecting rod 6, and the free end of the limiting rod 9 connected to each elastic plate 14 extends into the corresponding limiting groove 7 and contacts the inclined surface of the corresponding limiting groove 7. During the relative movement of 13, the free end of each limiting rod 9 presses against the inclined surface of the limiting groove 7, driving each connecting rod 6 to move upward. The multiple connecting rods 6 drive the chain 4 to move upward until each elastic plate 14 contacts the side of the annular groove 2 10. At this time, the free end of each limiting rod 9 presses against the lower portion of the inclined surface of the corresponding limiting groove 7, and the sealing gasket 15 in the annular groove 1 5 is compressed to its limit state; the chain 4 is connected to the fixing column 8 via the multiple connecting rods 6, and the connecting pipe 1 and the nozzle body 3 are fixed to the water pipe. Moreover, the sealing gasket 15 is compressed to its limit state, and the water pipe 2 is sealed and connected to the chain 4 to prevent water leakage.

[0031] During disassembly, the screw 16 is rotated to move the two drive rings 13 away from each other, and the limiting rods 9 on each elastic plate 14 are located in the corresponding through holes 21. At this time, each connecting rod 6 is released from the limit, and the connecting pipe 1 and the nozzle body 3 can be easily disassembled;

[0032] During use, the screw rod for driving the two driving rings to move is located in the second ring groove, which can prevent the screw rod from contacting with water vapor and reduce the rust of the screw rod 16.

[0033] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Without violating the spirit of the present invention, that is, within the scope of disclosure, any equivalent or equivalent deformation or replacement of the technical solution of the utility model shall fall within the scope of protection of the present invention.

Claims

1. A connection structure for a water distribution nozzle of a cooling tower, characterized in that: The invention comprises a connecting pipe (1), a water pipe (2) and a limiting member; the lower end of the connecting pipe (1) is connected to the nozzle body (3), and the upper end is connected to a connecting ring (4); the top surface of the connecting ring (4) is recessed with an annular groove (5) that is stuck outside the lower end of the water pipe (2); the top surface of the connecting ring (4) outside the annular groove (5) is provided with a connecting rod (6) in an annular array; each connecting rod (6) is provided with a limiting groove (7) on the side opposite to the outer wall of the water pipe (2); the limiting member comprises a fixing column (8) and a limiting rod (9); the fixing column (8) is sleeved and fixed outside the water pipe (2); the limiting groove (7) of each connecting rod (6) is provided. ) extends upward into the fixed column (8), the outer wall of the fixed column (8) is recessed with a ring groove (10) whose opening is blocked by a ring plate (22), and a driving ring (13) is slidably provided in the upper and lower parts of the ring groove (10), and an elastic plate (14) corresponding to the connecting rod (6) and protruding toward the connecting rod (6) is connected between the opposite surfaces of the two driving rings (13), and a limiting rod (9) is connected to the elastic plate (14), the free end of which extends into the limiting groove (7) on the corresponding connecting rod (6); a screw (16) is provided on the fixed column (8) for driving the two driving rings (13) to move relative to or opposite to each other.

2. The connection structure of a cooling tower water diversion nozzle according to claim 1, characterized in that: The ring width of the annular groove (5) matches the wall thickness of the water pipe (2), and a sealing gasket (15) is provided on the bottom surface of the annular groove (5); the limiting groove (7) on the left connecting rod (6) is a right-angled triangular groove with a straight bottom surface, a right side surface with an upper end inclined to the left, and an open left end.

3. The connection structure of a cooling tower water diversion nozzle according to claim 2, characterized in that: A blind hole (17) corresponding to each connecting rod (6) is provided on the bottom surface of the fixing column (8), and the free end of the limiting rod (9) passes through the outer side surface of the blind hole (17) and presses against the inclined surface of the limiting groove (7) on the corresponding connecting rod (6).

4. The connection structure of a cooling tower water diversion nozzle according to claim 3, characterized in that: When the inner side surface of each elastic plate (14) contacts the side surface of the annular groove (10), the free end of each limiting rod (9) presses against the lower portion of the inclined surface of the corresponding limiting groove (7), and there is a gap between the upper end of each connecting rod (6) and the inner top surface of the blind hole (17) in which it is located. The sealing gasket (15) in the annular groove (5) is compressed to the limit state.

5. The connection structure of the water diversion nozzle of a cooling tower according to claim 1, characterized in that: The screw rod (16) is threadedly connected to the two driving rings (13). The upper and lower parts of the peripheral wall of the screw rod (16) are provided with a thread 1 (18) and a thread 2 (19) with opposite thread rotation directions. The lower end of the screw rod (16) is rotatably connected to the inner bottom surface of the ring groove 2 (10), and the upper end of the screw rod (16) is movably connected to the fixed column (8) on the upper side of the ring groove 2 (10) and is connected to the rotating plate (20).

6. The connection structure of a cooling tower water diversion nozzle according to claim 4, characterized in that: A through hole (21) is provided on the side surface of the annular groove (10) for each limiting rod (9) to move through; when the two driving rings (13) move in opposite directions and contact the upper and lower inner surfaces of the annular groove (10) respectively, the free end of the limiting rod (9) on each elastic plate (14) is located in the corresponding through hole (21); when the lower end of the water pipe (2) extends into the annular groove (5) and the sealing gasket (15) is in a natural state, the upper inclined surface of the limiting groove (7) of each connecting rod (6) is opposite to the inside and outside of the corresponding through hole (21).

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