Uniform adjustable water distribution nozzle of cross-flow cooling tower

Abstract

The utility model relates to an adjustable uniform water distribution spray head of a cross-flow cooling tower, and belongs to the technical field of water distribution of cooling towers, the adjustable uniform water distribution spray head comprises a main water inlet pipe, a platform snap ring, main reinforcing ribs and a water dispersing disc, the platform snap ring is fixedly sleeved on an upper port of the main water inlet pipe, and the main water inlet pipe is inserted into a water distribution hole of the water distribution disc of the cross-flow cooling tower; the platform clamping ring is erected on the hole, the main reinforcing rib is fixedly installed on the lower portion of the main water inlet pipe, and the water dispersing disc is located below the main water inlet pipe and fixedly connected with the main reinforcing rib. A water falling cone is fixedly installed in the center of the water dispersing disc, a plurality of first water distribution grooves and second water distribution grooves are formed in the water dispersing disc in the circumferential direction at equal intervals, the first water distribution grooves and the second water distribution grooves are alternately arranged, the water dispersing disc is divided into a plurality of radial water dispersing petals, the groove length of the first water distribution grooves is larger than that of the second water distribution grooves, and the first water distribution grooves are close to the water falling cone. The water distributor has the effects of uniformly distributing water and reducing the hollow area during water distribution.

Description

Technical Field

[0001] The present application relates to the technical field of water distribution on cooling tower trays, and in particular to an adjustable and uniform water distribution nozzle for a cross-flow cooling tower. Background Art

[0002] Cooling towers are evaporative heat dissipation devices that dissipate excess heat generated in industrial or refrigeration applications to lower water temperatures. In central air conditioning systems, the heat conversion efficiency of cooling towers is crucial. One key criterion for determining a cooling tower's effectiveness is whether the cooling water is evenly distributed from the drain outlet of the cooling tower tray to the packing. The greater the surface area of ​​water that can be dispersed over the tray, the better the cooling tower's effectiveness.

[0003] In the existing cross-flow cooling tower water distribution design, a water distribution tray hole type water distribution method is adopted. Cross-flow cooling towers generally install nozzles on the holes of the water channel to increase the spraying area. In order to maximize the working efficiency of the cross-flow cooling tower, multiple nozzles are often arranged in sequence on a circulating water channel of the cooling tower to increase the spraying area, thereby cooling the workpiece or raw material by spraying cold water on the high-temperature workpiece or filler.

[0004] However, the applicant found that most of the existing water distribution nozzles have swirl-shaped flat surfaces, and the water distribution troughs of the water distribution disks are of the same length and size. Although water distribution can be achieved, there will still be an umbrella film during water distribution, which makes the hollow area large and the water distribution uneven, seriously affecting the effective utilization rate of the cooling tower filler and reducing the cooling efficiency. Utility Model Content

[0005] In order to distribute water evenly and reduce the hollow area during water distribution, the present application provides a cross-flow cooling tower with an adjustable and even water distribution nozzle.

[0006] The present application provides a cross-flow cooling tower with an adjustable and uniform water distribution nozzle, which adopts the following technical solutions:

[0007] A cross-flow cooling tower with adjustable and uniform water distribution nozzle, comprising a main water inlet pipe, a platform clamping ring, a main reinforcing rib and a water dispersion tray, wherein the platform clamping ring is fixed to the upper port of the main water inlet pipe, the main water inlet pipe is inserted into the water distribution hole of the water distribution tray of the cross-flow cooling tower, the platform clamping ring is mounted on the hole, the main reinforcing rib is fixedly installed at the lower part of the main water inlet pipe, and the water dispersion tray is located below the main water inlet pipe and fixedly connected to the main reinforcing rib;

[0008] A water drop cone is fixedly installed at the center of the water dispersion pan, with the tip of the water drop cone pointing to the main water inlet pipe and coinciding with the axis of the main water inlet pipe. Several first water distribution troughs and second water distribution troughs are equidistantly arranged along the circumference of the water dispersion pan. The first water distribution troughs and the second water distribution troughs are alternately arranged to divide the water dispersion pan into several radial water dispersion petals. The length of the first water distribution trough is greater than that of the second water distribution trough, and the innermost side is arranged close to the water drop cone.

[0009] Optionally, the diffuser pan is divided into several radial diffuser petals, each of which is provided with a deflection angle, and the deflection angles are all located on the same side of the outer edge of the corresponding diffuser petal.

[0010] Optionally, a plurality of embedded fins are installed on the wall of the main water inlet pipe, and the embedded fins are inclined in the same clockwise direction.

[0011] Optionally, a plurality of side reinforcing ribs are installed on the wall of the main water inlet pipe, and the side reinforcing ribs are located between the embedded fins.

[0012] Optionally, an adjusting pipe is provided on the main water inlet pipe. The main water inlet pipe is provided with an internal thread. The adjusting pipe and the main water inlet pipe are connected by threads. The adjusting pipe can be screwed to adjust the water entry height.

[0013] Optionally, a plurality of diversion grooves are provided on the regulating pipe, and the diversion grooves are used to divert part of the water flow toward the port of the regulating pipe into the main water inlet pipe in advance.

[0014] Optionally, the regulating pipe is provided with pipe reinforcement ribs, and the pipe reinforcement ribs are located between the diversion grooves.

[0015] Optionally, the diversion trough is an inverted trapezoidal trough.

[0016] Optionally, an annular reinforcement rib is provided on the adjusting tube, and the annular reinforcement rib is fixed to the upper port of the adjusting tube.

[0017] Optionally, a variable diameter inner tube is provided in the regulating tube, and the variable diameter inner tube is detachably installed in the regulating tube, and is used to adjust the inner diameter of the regulating tube.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] 1. When the cooling water in the gravity pool of a crossflow cooling tower falls from the main water inlet pipe, it first contacts the water cone. After being dispersed by the water cone, a portion of the dispersed cooling water contacts the first water distribution troughs near the water cone. Under the action of the water's own gravity and impact force, it scatters outward along the first water distribution troughs. After being deflected at the deflection angle, it forms the first water outlet step and falls into the cooling tower packing below. The other portion of the dispersed cooling water contacts the second water distribution troughs away from the water cone. Under the action of the water's own gravity and impact force, it scatters outward along the second water distribution troughs. After being deflected at the deflection angle, it forms the second water outlet step and falls into the cooling tower packing below.

[0020] As cooling water passes through the first and second water distribution troughs, the water enters at different points, forming first and second water distribution steps with different water distribution heights and areas. These two water distribution steps, deflected by the deflection angle, distribute water in the same direction. The alternating arrangement of the first and second water distribution troughs prevents interference between the first and second water distribution steps, minimizing the formation of umbrella films and the hollow area during water distribution, resulting in more uniform water distribution. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of an embodiment of the present application;

[0022] Figure 2 This is a structural diagram of the application to highlight the main water inlet pipe, main reinforcement ribs and water dispersion tray;

[0023] Figure 3 This is an upward view of the present application to highlight the water pan;

[0024] Figure 4 This is a schematic diagram of the structure of the application to highlight the regulating tube;

[0025] Figure 5 This is a top view attempt to highlight the variable diameter inner tube.

[0026] In the figure, 1. Main water inlet pipe; 11. Platform clamp; 12. Embedded fin; 13. Side reinforcement rib; 2. Main reinforcement rib; 3. Diffuser; 31. Drain cone; 32. First water distribution trough; 33. Second water distribution trough; 34. Deflection angle; 4. Adjustment pipe; 41. Diversion trough; 42. Pipe reinforcement rib; 43. Circumferential reinforcement rib; 44. Variable diameter inner pipe. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-5 This application is described in further detail.

[0028] The embodiment of the present application discloses a cross-flow cooling tower with an adjustable and uniform water distribution nozzle.

[0029] refer to Figure 1A cross-flow cooling tower with adjustable and uniform water distribution nozzle includes a main water inlet pipe 1, a main reinforcement rib 2 and a water dispersion plate 3. The main water inlet pipe 1 is a hollow pipe with openings at both ends, which is inserted into the water distribution hole of the water distribution plate of the cross-flow cooling tower, and the lower part extends out of the hole and is arranged toward the cooling tower filler. The platform clamp 11 is fixed at the upper port of the main water inlet pipe 1 and is placed on the hole to position the main water inlet pipe 1. The main reinforcement rib 2 is fixedly installed at the lower part of the main water inlet pipe 1. In this embodiment, only two main reinforcement ribs 2 are shown as a schematic. The main reinforcement ribs 2 are all arranged in the vertical direction and are symmetrically arranged along the edge of the lower port of the main water inlet pipe 1. The water dispersion plate 3 is located directly below the main water inlet pipe 1 and is fixedly connected to the lower end of the main reinforcement rib 2.

[0030] refer to Figure 1 、 Figure 2 and Figure 3 A water cone 31 is fixedly installed at the center of the upper part of the water dispersion tray 3. In this embodiment, the water cone 31 is a conical structure, the tip of the water cone 31 points to the main water inlet pipe 1, and the axis of the water cone 31 coincides with the axis of the main water inlet pipe 1.

[0031] Diffuser pan 3 is provided with a plurality of first water distribution troughs 32 and second water distribution troughs 33 equidistantly along its circumference. In this embodiment, only four first water distribution troughs 32 and four second water distribution troughs 33 are shown for illustration purposes. The first and second water distribution troughs 32, 33 are alternately arranged along the circumference of the water cone 31, radially outward from the diffuser pan 3, dividing the diffuser pan 3 into a plurality of radially dispersing petals.

[0032] The first water distribution trough 32 is longer than the second water distribution trough 33, and its innermost portion is located near the edge of the water cone 31. The innermost portion of the second water distribution trough 33 is located at a distance from the edge of the water cone 31. The water pan 3 is provided with several deflection angles 34. In this embodiment, only eight deflection angles 34 are shown for illustration purposes, and all are rounded. Each deflection angle 34 is located at one of the outer corners of the radially shaped petals that divide the water pan 3. Each deflection angle 34 is located on the same side of the outer edge of the petal along the same clockwise direction. The other outer corner of the petal on each of the petals of the water pan 3 is a right angle.

[0033] When the cooling water in the gravity pool of the cross-flow cooling tower falls from the main water inlet pipe 1, it first contacts the water cone 31. After being dispersed by the water cone 31, a portion of the dispersed cooling water contacts the first water distribution troughs 32 near the water cone 31. Under the action of the gravity and impact force of the water flow, it scatters outward along the first water distribution troughs 32. After being deflected at the deflection angle close to the water flow, it forms a first water outlet step and falls into the cooling tower packing below. Another portion of the dispersed cooling water contacts the second water distribution troughs 33 away from the water cone 31. Under the action of the gravity and impact force of the water flow, it scatters outward along the second water distribution troughs 33. After being deflected at the deflection angle close to the water flow, it forms a second water outlet step and falls into the cooling tower packing below.

[0034] As the cooling water passes through the first and second water distribution troughs 32, 33, the water enters at different points, forming first and second water distribution steps with different water distribution heights and areas. These two water distribution steps, deflected by the deflection angle, deflect in the same direction during water distribution, reducing the formation of umbrella films. Because the first and second water distribution troughs 32, 33 are alternately positioned, the resulting first and second water distribution steps do not interfere with each other, minimizing the formation of umbrella films and reducing the hollow area during water distribution, resulting in more uniform water distribution.

[0035] refer to Figure 1 、 Figure 2 and Figure 3 Several rows of embedded fins 12 are mounted on the wall of the main water inlet pipe 1. In this embodiment, only two rows of embedded fins 12 are shown for illustration. The embedded fins 12 are all arranged vertically and symmetrically with the axis of the main water inlet pipe 1 as the axis of symmetry. Each fin in each row of embedded fins 12 is tilted in the same clockwise direction.

[0036] Several side reinforcement ribs 13 are installed on the wall of the main water inlet pipe 1 to strengthen the wall of the main water inlet pipe 1. In this embodiment, only two side reinforcement ribs 13 are shown for illustration. The side reinforcement ribs 13 are located between the embedded fins 12. The side reinforcement ribs 13 are arranged vertically and symmetrically around the axis of the main water inlet pipe 1.

[0037] Among them, when the main water inlet pipe 1 is installed into the water distribution hole of the water distribution tray of the cross-flow cooling tower, the operator tilts the embedded fin 12 in the opposite direction and continuously twists it downward to insert the main water inlet pipe 1 into the water distribution hole of the water distribution tray of the cross-flow cooling tower. When the main water inlet pipe 1 is installed, the bottom of the platform clamping ring 11 is completely placed on the water distribution tray of the cross-flow cooling tower, and the embedded fin 12 can prevent the main water inlet pipe 1 from shifting in the hole.

[0038] refer to Figure 1 、 Figure 2 、 Figure 4 and Figure 5, an adjusting pipe 4 is provided on the water inlet pipe. The adjusting pipe 4 is a central pipe with openings at both ends. The main water inlet pipe 1 is provided with an internal thread. The adjusting pipe 4 and the main water inlet pipe 1 are connected by threads. The adjusting pipe 4 can adjust the water inlet height by screwing the threads, so that when the water distribution tray of the cross-flow cooling tower is discharging water, the cooling water entering from the front of the gravity pool will not be drained in advance by the main water inlet pipe 1 located there, so that the rear of the gravity pool cannot be exposed to water, resulting in uneven cooling of the overall cooling tower filler.

[0039] The regulating tube 4 is provided with several diverter grooves 41. In this embodiment, only two groups of diverter grooves 41 are shown, with each group showing only two diverter grooves 41 for illustration. Each group of diverter grooves 41 is arranged vertically and symmetrically along the axis of the regulating tube 4. When the regulating tube 4 is fully screwed into the main water inlet pipe 1, the diverter grooves 41 are located above the platform retaining ring 11. The diverter grooves 41 are used to divert some of the water flowing toward the end of the regulating tube 4 into the main water inlet pipe 1 in advance.

[0040] The regulating pipe 4 is provided with a pipe reinforcement rib 42, which is located between each diverter groove 41 and is used to strengthen the strength of the regulating pipe 4. The diverter groove 41 is an inverted trapezoidal groove. When the water level in the water distribution tray of the cross-flow cooling tower rises, the cooling water can slowly flow into the regulating pipe 4 and into the main water inlet pipe 1 through the symmetrically arranged diverter grooves 41. At the same time, since the diverter groove 41 is an inverted trapezoidal groove, the side water inlet flow rate can be continuously increased as the water level rises, so that when the cooling water enters from the upper end of the regulating pipe 4, it can obtain multiple slow water entry stages, avoiding the situation where the final height of the cooling water does not reach the height of the upper port of the regulating pipe 4, and water accumulates in the gravity pool.

[0041] The regulating tube 4 is equipped with an annular reinforcing rib 43, which is secured around the upper end of the regulating tube 4 to strengthen the upper end. A removable inner tube 44 is installed within the regulating tube 4 to adjust the inner diameter of the regulating tube 4. Operators can install different diameters of the removable inner tube 44 in the regulating tube 4 as needed. When the removable inner tube 44 is installed, the upper end of the removable inner tube 44 is lower than the bottom of the diverter trough 41 at the lowermost portion of the regulating tube 4.

[0042] The implementation principle of the adjustable uniform water distribution nozzle of a cross-flow cooling tower in the embodiment of the present application is as follows: when the cooling water in the gravity pool of the cross-flow cooling tower falls from the main water inlet pipe 1, it first contacts the water cone 31. After being dispersed by the water cone 31, a portion of the dispersed cooling water contacts the first water distribution troughs 32 close to the water cone 31. Under the action of the gravity and impact force of the water flow, it scatters outward along the first water distribution troughs 32. After being deflected at the deflection angle close to the water flow, it forms a first water outlet step and falls into the cooling tower filler at the bottom. Another portion of the dispersed cooling water contacts the second water distribution troughs 33 away from the water cone 31. Under the action of the gravity and impact force of the water flow, it scatters outward along the second water distribution troughs 33. After being deflected at the deflection angle close to the water flow, it forms a second water outlet step and falls into the cooling tower filler at the bottom.

[0043] Those skilled in the art will understand that the above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A cross-flow cooling tower with an adjustable and uniform water distribution nozzle, characterized by: It comprises a main water inlet pipe (1), a platform clamping ring (11), a main reinforcing rib (2) and a water dispersion plate (3); the platform clamping ring (11) is fixedly sleeved on the upper port of the main water inlet pipe (1); the main water inlet pipe (1) is inserted into the water distribution hole of the water distribution plate of the cross-flow cooling tower; the platform clamping ring (11) is laid on the hole; the main reinforcing rib (2) is fixedly installed on the lower part of the main water inlet pipe (1); the water dispersion plate (3) is located below the main water inlet pipe (1) and is fixedly connected to the main reinforcing rib (2); A water drop cone (31) is fixedly installed at the center of the water dispersion tray (3), the tip of the water drop cone (31) points to the main water inlet pipe (1) and coincides with the axis of the main water inlet pipe (1), and a plurality of first water distribution troughs (32) and second water distribution troughs (33) are equidistantly provided on the water dispersion tray (3) along the circumference, the first water distribution troughs (32) and the second water distribution troughs (33) are alternately arranged, and the water dispersion tray (3) is divided into a plurality of radial water dispersion petals, the first water distribution trough (32) has a longer trough length than the second water distribution trough (33), and the innermost side is arranged close to the water drop cone (31).

2. The cross-flow cooling tower with an adjustable uniform water distribution nozzle according to claim 1, characterized in that: The water dispersion tray (3) is divided into several radial water dispersion petals, each of which is provided with a deflection angle (34), and the deflection angles (34) are all located on the same side of the outer edge of the corresponding water dispersion petal.

3. The cross-flow cooling tower with an adjustable uniform water distribution nozzle according to claim 1, characterized in that: A plurality of embedded fins (12) are installed on the wall of the main water inlet pipe (1), and the embedded fins (12) are arranged tilted along the same clockwise direction.

4. The cross-flow cooling tower with an adjustable uniform water distribution nozzle according to claim 3, characterized in that: Several side reinforcement ribs (13) are installed on the wall of the main water inlet pipe (1), and the side reinforcement ribs (13) are located between the embedded fins (12).

5. The cross-flow cooling tower with an adjustable uniform water distribution nozzle according to claim 1, characterized in that: The main water inlet pipe (1) is provided with an adjusting pipe (4), the main water inlet pipe (1) is provided with an internal thread, the adjusting pipe (4) and the main water inlet pipe (1) are connected via threads, and the adjusting pipe (4) can be screwed to adjust the water entry height.

6. The cross-flow cooling tower with an adjustable uniform water distribution nozzle according to claim 5, characterized in that: The regulating pipe (4) is provided with a plurality of diversion grooves (41), and the diversion grooves (41) are used to divert part of the water flow toward the end of the regulating pipe (4) into the main water inlet pipe (1) in advance.

7. The cross-flow cooling tower with an adjustable uniform water distribution nozzle according to claim 6, characterized in that: The regulating tube (4) is provided with a tube reinforcement rib (42), and the tube reinforcement rib (42) is located between the diversion grooves (41).

8. The cross-flow cooling tower with an adjustable uniform water distribution nozzle according to claim 7, characterized in that: The diversion groove (41) is an inverted trapezoidal groove.

9. The cross-flow cooling tower with an adjustable uniform water distribution nozzle according to claim 8, characterized in that: The regulating tube (4) is provided with an annular reinforcing rib (43), and the annular reinforcing rib (43) is fixed to the upper end of the regulating tube (4) in an annular sleeve.

10. The cross-flow cooling tower with an adjustable uniform water distribution nozzle according to claim 9, characterized in that: A variable diameter inner tube (44) is provided in the regulating tube (4); the variable diameter inner tube (44) is detachably installed in the regulating tube (4); and the variable diameter inner tube (44) is used to adjust the inner diameter of the regulating tube (4).

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