Water pan structure of cooling tower

Abstract

This utility model discloses a water tray structure for a cooling tower, relating to the field of cooling tower technology. The utility model includes a cooling tower body and a water tray. A screw is located within the water tray, with a movable ring on the screw and a pressure ring on the movable side. A material drain rack is located at the bottom of the water tray, and a sealing rod is located within the material drain rack. The driving mechanism includes a rotating ring with two driving rods. A first arc groove is formed on the sealing rod, and a second arc groove is formed on the inner wall of the pressure ring. By rotating the screw, the movable ring moves downward, causing the pressure ring to move downward as well. The pressure ring moves downward and abuts against the top ring, inserting into the ring groove. The abutting ring creates a sealed space within the pressure ring, sealing the water containing impurities within it. As the pressure ring moves downward, the sealing rod separates from the material drain rack, and the water containing impurities within the pressure ring is discharged from the water tray. This allows for the quantitative discharge of cooling water containing impurities without shutting down the cooling tower, effectively increasing cooling efficiency and saving cooling water.

Description

Technical Field

[0001] This utility model relates to the field of cooling tower technology, and specifically to a water tray structure for a cooling tower. Background Technology

[0002] A cooling tower is a tower-type heat dissipation device that cools water. Its main function is to exchange heat between the cooling water carrying waste heat and the air inside the tower, so that the waste heat is transferred to the air and dissipated into the atmosphere, thereby reducing the water temperature and realizing the circulation and cooling of the water. The cooling tower is mainly composed of a tower body, packing, water distribution system, ventilation equipment, air distribution device, water separator, and water collector.

[0003] The water collector of a cooling tower, also known as a water pan or water collection trough, is located at the bottom of the cooling tower. It collects the cooling water falling from the water-spraying packing and sometimes has a storage volume to regulate the flow rate.

[0004] When a cooling tower is in use, impurities such as airborne impurities, corrosion products in the system, microorganisms and algae, and scale will accumulate at the bottom of the cooling tower. The accumulation of impurities will have an adverse effect on the operation of the cooling tower, such as reducing cooling efficiency, clogging pipes, and affecting water quality. Current technology usually requires shutting down the cooling tower or directly opening the water valve to discharge the water containing impurities when draining the impurities from the bottom of the cooling tower water pan. However, while direct discharge can remove most of the impurities, it also discharges a lot of cooling water, resulting in waste of cooling water. Utility Model Content

[0005] The purpose of this invention is to provide a water tray structure for a cooling tower to address the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a water tray structure for a cooling tower, comprising a cooling tower body, a water tray fixedly disposed on the bottom wall of the cooling tower body, a screw rotatably disposed within the water tray, a movable ring threadedly connected to the screw, a pressure ring fixedly disposed on the side of the movable ring near the bottom of the water tray, a material leakage rack fixedly disposed at the bottom of the water tray, and a sealing rod slidably disposed within the material leakage rack; a driving mechanism, comprising a rotating ring rotatably disposed at the bottom of the screw, two driving rods fixedly disposed on the rotating ring, the sealing rod slidably connected to the screw, a first arc groove adapted to the driving rod being formed on the outer circumferential surface of the sealing rod, and a second arc groove adapted to the driving rod being formed on the inner wall of the pressure ring.

[0007] Preferably, a rotatable handle is rotatably provided on the cooling tower body, a second bevel gear is fixedly provided on the top of the screw, and a first bevel gear that meshes with the second bevel gear is fixedly provided at one end of the rotatable handle near the screw.

[0008] Preferably, the movable ring is fixedly provided with an abutment ring on the side near the sealing rod, the rotating ring is fixedly provided with a sealing ring on the top of its outer circumference, and the top of the pressing ring is fixedly connected to the bottom of the abutment ring.

[0009] Preferably, the material feeder has an annular groove, and a top ring is slidably disposed in the annular groove.

[0010] Preferably, a spring is fixedly provided between the top ring and the bottom wall of the ring groove.

[0011] Preferably, the bottom of the screw has a movable cavity, and the top of the sealing rod is fixedly provided with a sliding rod, which is slidably connected to the screw.

[0012] In the above technical solution, the present invention provides a water tray structure for a cooling tower, which has the following beneficial effects: by rotating the screw, the moving ring moves downward, and when the moving ring moves downward, it drives the lower pressure ring to move downward. The lower pressure ring moves downward and abuts against the top ring and inserts into the ring groove. The abutting ring forms a sealed space inside the lower pressure ring, which seals the water containing impurities inside the lower pressure ring. As the lower pressure ring moves downward, the sealing rod separates from the leakage frame. At this time, the water containing impurities inside the lower pressure ring is discharged from the water tray. It can discharge cooling water containing impurities in a quantitative manner without stopping the machine, effectively increasing cooling efficiency and saving cooling water. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0015] Figure 2 A schematic diagram of the structure of the first bevel gear provided in an embodiment of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the sealing rod provided in an embodiment of the present utility model;

[0017] Figure 4 A schematic diagram of the screw structure provided in an embodiment of this utility model;

[0018] Figure 5 A schematic diagram of the drive rod provided in an embodiment of this utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the second arc-shaped groove provided in an embodiment of the present utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Cooling tower body; 2. Water pan; 3. Support rod; 4. Throttle; 5. First bevel gear; 6. Second bevel gear; 7. Screw; 8. Moving ring; 9. Abutment ring; 10. Pressing ring; 11. Sealing rod; 12. Material leakage rack; 13. Top ring; 14. Spring; 15. Rotating ring; 16. Drive rod; 17. First arc groove; 18. Movable cavity; 19. Slide rod; 20. Second arc groove; 21. Ring groove. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] Please see Figure 1-6 A water tray structure for a cooling tower, the technical solution proposed in this utility model includes a cooling tower body 1, a water tray 2 fixedly installed on the bottom wall of the cooling tower body 1, a screw 7 rotatably installed inside the water tray 2, a movable ring 8 threadedly connected to the screw 7, a pressing ring 10 fixedly installed on the side of the movable ring 8 near the bottom of the water tray 2, a material leakage rack 12 fixedly installed at the bottom of the water tray 2, and a sealing rod 11 slidably installed inside the material leakage rack 12; a driving mechanism, which includes a rotating ring 15 rotatably installed at the bottom of the screw 7, two driving rods 16 fixedly installed on the rotating ring 15, the sealing rod 11 slidably connected to the screw 7, and a first arc groove 17 adapted to the driving rod 16 on the outer circumference of the sealing rod 11; and a pressing ring. The inner wall of the 10 has a second arc groove 20 adapted to the drive rod 16; the water pan 2 is fixedly installed at the bottom of the cooling tower body 1, the water pan 2 is funnel-shaped, the material leakage rack 12 is fixedly installed at the bottom of the water pan 2, the material leakage rack 12 has a through hole in the middle, the sealing rod 11 is adapted to the through hole of the material leakage rack 12 and can achieve sliding seal, the bottom of the screw 7 is set as a hollow structure, the sealing rod 11 can slide at the bottom of the screw 7, the lower pressure ring 10 is a hollow cylindrical shape, when impurities fall on the water pan 2 through the funnel-shaped water pan 2, they can be concentrated along the inclined surface to the top of the material leakage rack 12, at this time the sealing rod 11 blocks the material leakage rack 12 so that cooling water and impurities cannot pass through the material leakage rack 12, such as Figure 5 As shown, the drive rod 16 passes through the rotating ring 15. One end of the drive rod 16 is located outside the rotating ring 15 and slides within the corresponding second arc groove 20. The other end of the drive rod 16 is located inside the rotating ring 15 and slides within the corresponding first arc groove 17. Figure 6In the initial state, a portion of the outer side of the drive rod 16 is located at the lower end of the second arc groove 20. When it is necessary to discharge the impurities accumulated above the material discharge rack 12, the screw 7 is rotated, causing the screw 7 to drive the moving ring 8 downward. When the moving ring 8 moves downward, it drives the pressing ring 10 downward. During the downward movement, the pressing ring 10 abuts against the material discharge rack 12. The outer circumference of the pressing ring 10 is covered with a flexible material. During the downward movement of the pressing ring 10, the drive rod 16 gradually moves from the vertical part at the lower end of the second arc groove 20 into the curved part. At this time, since the pressing ring 10 does not rotate, the second arc groove 20 and the outer end of the drive rod 16 drive the rotating ring 15 to rotate. When the rotating ring 15 rotates, the end of the drive rod 16 located inside the rotating ring 15 also rotates. Since the sealing rod 11 and the screw 7 are slidably connected, when the rotating ring 15 rotates, the cooperation between the end of the drive rod 16 located inside the rotating ring 15 and the second arc groove 20 allows the sealing rod 11 to move upward along the screw 7. When the pressure ring 10 is fully abutted against the material draining frame 12, the sealing rod 11 moves out of the through hole of the material draining frame 12. At this time, the abutment between the pressure ring 10 and the material draining frame 12 forms a closed space inside the pressure ring 10, preventing external cooling water from entering the pressure ring 10. The impurities accumulated on the material draining frame 12 are all inside the pressure ring 10. When the sealing rod 11 separates from the material draining frame 12, the through hole is opened, and the cooling water containing impurities inside the pressure ring 10 is released. Water is discharged, and then the screw 7 is reversed, causing the screw 7 to drive the moving ring 8 to move upward. When the moving ring 8 moves upward, it drives the lower pressure ring 10 to move upward. The upper pressure ring 10 drives the drive rod 16 to reverse, thereby driving the rotating ring 15 to reverse, which in turn causes the sealing rod 11 to move downward again into the through hole of the material discharge rack 12 to seal the through hole. At this time, the discharge of impurities is completed without stopping the machine. At the same time, only a part of the water body with impurities accumulated on the material discharge rack 12 is discharged, which can effectively prevent the waste of cooling water.

[0024] Specifically, a handle 4 is rotatably mounted on the cooling tower body 1, and a second bevel gear 6 is fixedly mounted on the top of the screw 7. A first bevel gear 5 that meshes with the second bevel gear 6 is fixedly mounted on one end of the handle 4 near the screw 7. By rotating the handle 4, the first bevel gear 5 can be driven to rotate, which in turn drives the second bevel gear 6 to rotate, thereby driving the screw 7 to rotate in both directions, which facilitates the discharge of impurities. A support rod 3 is fixedly mounted inside the water pan 2. The support rod 3 is rotatably connected to the upper end of the screw 7, and the screw 7 can rotate stably inside the water pan 2 through the support rod 3.

[0025] Specifically, a contact ring 9 is fixedly installed on the side of the moving ring 8 near the sealing rod 11, a sealing ring is fixedly installed on the top of the outer circumference of the rotating ring 15, and the top of the pressing ring 10 is fixedly connected to the bottom of the contact ring 9. The inner wall of the contact ring 9 is made of flexible material. The pressing ring 10 is fixedly connected to the moving ring 8 through the contact ring 9. When the moving ring 8 moves down, it drives the contact ring 9 to move down. When the bottom of the pressing ring 10 abuts against the material leakage frame 12, the inner bottom wall of the contact ring 9 abuts against the sealing ring on the rotating ring 15, and the upper part of the contact ring 9 abuts against the bottom outer circumference of the screw 7. The moving ring 8 is about to move to the lowest end of the thread groove of the screw 7. At this time, a sealed space is formed inside the pressing ring 10 through the contact ring 9 and the sealing ring, so that the cooling water outside the pressing ring 10 cannot enter the pressing ring 10, and only the cooling water with impurities inside the pressing ring 10 is discharged.

[0026] Specifically, the material leakage rack 12 has an annular groove 21, and a top ring 13 is slidably disposed in the annular groove 21. In the initial state, the top ring 13 is at the top of the annular groove 21, and at this time the top of the top ring 13 is aligned with the top of the material leakage rack 12. When the moving ring 8 drives the lower pressure ring 10 to move downward, the lower pressure ring 10 gradually abuts against the top ring 13. When the lower pressure ring 10 abuts against the top ring 13, the abutting ring 9 abuts against the sealing ring, and the sealing rod 11 is about to separate from the material leakage rack 12. Continue to rotate the screw 7, and then the lower pressure ring 10 extends into the annular groove 21. The outer wall of the lower pressure ring 10 abuts against the inner wall of the annular groove 21, thereby effectively isolating the lower pressure ring 10 from the outside water.

[0027] Specifically, a spring 14 is fixedly installed between the top ring 13 and the bottom wall of the ring groove 21. When the lower pressure ring 10 enters the ring groove 21, the spring 14 is compressed. When the reverse screw 7 causes the lower pressure ring 10 to rise, the top ring 13 is lifted by the spring 14. At this time, the top of the top ring 13 is aligned with the top of the material discharge rack 12, so that impurities can slide down onto the material discharge rack 12 for easy cleaning later.

[0028] Specifically, the screw 7 has a movable cavity 18 at its bottom, and the top of the sealing rod 11 is fixedly provided with a slide rod 19, which is slidably connected to the screw 7; the sealing rod 11 can slide in the movable cavity 18, and the sealing rod 11 is slidably connected to the bottom of the screw 7 through the slide rod 19.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water tray structure for a cooling tower, comprising a cooling tower body (1), wherein a water tray (2) is fixedly disposed on the inner bottom wall of the cooling tower body (1), characterized in that, A screw (7) is rotatably installed inside the water pan (2). A movable ring (8) is threaded onto the screw (7). A pressure ring (10) is fixedly installed on the side of the movable ring (8) near the bottom of the water pan (2). A material leakage rack (12) is fixedly installed at the bottom of the water pan (2). A sealing rod (11) is slidably installed inside the material leakage rack (12). The driving mechanism includes a rotating ring (15) rotatably disposed at the bottom of the screw (7), two driving rods (16) fixedly disposed on the rotating ring (15), the sealing rod (11) being slidably connected to the screw (7), the outer circumferential surface of the sealing rod (11) being provided with a first arc groove (17) adapted to the driving rod (16), and the inner wall of the pressing ring (10) being provided with a second arc groove (20) adapted to the driving rod (16).

2. The water tray structure of a cooling tower according to claim 1, characterized in that, The cooling tower body (1) is rotatably provided with a handle (4), the top of the screw (7) is fixedly provided with a second bevel gear (6), and the end of the handle (4) near the screw (7) is fixedly provided with a first bevel gear (5) that meshes with the second bevel gear (6).

3. The water tray structure of a cooling tower according to claim 2, characterized in that, The moving ring (8) is fixedly provided with an abutment ring (9) on the side near the sealing rod (11), and a sealing ring is fixedly provided on the top of the outer circumference of the rotating ring (15). The top of the pressing ring (10) is fixedly connected to the bottom of the abutment ring (9).

4. The water tray structure of a cooling tower according to claim 3, characterized in that, The material feed rack (12) has an annular groove (21) and a top ring (13) is slidably disposed in the annular groove (21).

5. The water tray structure of a cooling tower according to claim 4, characterized in that, A spring (14) is fixedly installed between the top ring (13) and the bottom wall of the ring groove (21).

6. The water tray structure of a cooling tower according to claim 5, characterized in that, The screw (7) has a movable cavity (18) at the bottom, and the sealing rod (11) has a slide rod (19) fixedly installed at the top. The slide rod (19) is slidably connected to the screw (7).

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