Uniform water distribution device for cross-flow cooling tower

Abstract

The utility model relates to the technical field of cooling towers, and discloses a uniform water distribution device for a cross-flow cooling tower, which comprises a water storage tank, a water distribution disc, a water outlet pipe and a water distributor, the water storage tank is positioned above the water distribution disc, a plurality of through holes are formed in the bottom of the water storage tank, and a plurality of water distribution holes are formed in the bottom of the water distribution disc; the water segregator comprises water segregation main pipes, diversion joints and a plurality of water segregation branch pipes, the water segregation main pipes are connected to the water outlet pipes in a one-to-one correspondence mode, the water segregation main pipes and the water segregation branch pipes are connected through the diversion joints, the ends, away from the diversion joints, of the water segregation branch pipes are closed, and a plurality of water segregation holes are formed in the bottoms of the water segregation branch pipes. Water in the water storage tank enters the water distribution main pipe along the water outlet pipe, then is distributed to the water distribution branch pipes through the flow distribution connectors, and then is distributed through the water distribution holes of the water distribution branch pipes. Water falls into the water distribution disc from the water distribution holes and then is distributed through the water distribution holes; water distribution is performed after primary water distribution, so that water distribution is more continuous and uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling towers, in particular to a uniform water distribution device for a cross-flow cooling tower. Background Art

[0002] A cross-flow cooling tower is a cooling tower in which water flows vertically from the top of the tower, air flows horizontally through the water-sprinkling filler, and the airflow is orthogonal to the water flow. Inside the cooling tower, a large amount of water film is formed between the water and the air through the cooling filler, thereby increasing the contact area between the water and the air. When the air forms an airflow through the fan, heat and mass transfer will occur between the air and the water film, so that the heat in the hot water is transferred to the air, thereby achieving the cooling of the hot water.

[0003] Traditional cross-flow cooling towers generally distribute water through trough-type water distributors arranged on both sides of the tower. The outlet of the cooling tower's upper water pipe is arranged at one end of the trough-type water distributor. After entering the water, the cooling water flows from the water distribution hole near the outlet under the action of gravity through the water distribution hole to the cooling tower filler, and flows to the other far end. During the flow process, it continues to be distributed to the cooling tower filler through the water distribution hole it flows through.

[0004] In the above process, the liquid level in the water tank near the water inlet is often high, and the liquid level in the water tank at the far end is low. The flow rate through the water distribution holes is larger where the liquid level is high. If the water intake of the cooling tower is small, there may even be water distribution only at the near end, and no water flows at the far end, resulting in uneven water distribution in the filler, or even no water at one end. This phenomenon will lead to uneven water distribution in the cooling tower filler, unbalanced wind flow resistance in the filler, and more airflow will pass through the filler with less or no water, which will seriously affect the contact between the airflow and water in the filler and reduce the heat dissipation effect of the cooling tower. Utility Model Content

[0005] In order to solve the above technical problems, the present disclosure provides a uniform water distribution device for a cross-flow cooling tower, which can improve the uniformity of water distribution in the cross-flow cooling tower filler.

[0006] The present invention provides a uniform water distribution device for a cross-flow cooling tower, comprising: a water storage tank and a water distribution pan, wherein the water storage tank is located above the water distribution pan, a plurality of through holes are provided at the bottom of the water storage tank, a plurality of water distribution holes are provided at the bottom of the water distribution pan, and further comprising: a water outlet pipe and a water distributor, wherein there are a plurality of water outlet pipes, one end of each water outlet pipe is connected to the through hole in a one-to-one correspondence, and the other end of each water outlet pipe extends into the water distribution pan; there are a plurality of water distributors, each water distributor is connected to the water distribution pan, and the water distributor is located above the water distribution holes, and the water distributor comprises: a water distribution main pipe, a diversion joint, and a plurality of water distribution branches, wherein the water distribution main pipe is connected to the water outlet pipe in a one-to-one correspondence, the water distribution main pipe is connected to the water distribution branch pipe via the diversion joint, one end of the water distribution branch pipe away from the diversion joint is closed, and a plurality of water distribution holes are provided at the bottom of the water distribution branch pipe.

[0007] Optionally, the diameter of the water diversion hole is larger than the diameter of the water distribution hole.

[0008] Optionally, the diameter of the water distribution main pipe is the same as the diameter of the water distribution branch pipe, and the water distribution branch pipe is inclined downward by 15° in the horizontal direction.

[0009] Optionally, the distance between the bottom end of the water distribution branch pipe and the upper surface of the water distribution tray is half the height of the water distribution tray.

[0010] Optionally, an overflow hole is opened on the side wall of the water distribution tray, and the distance between the upper surface of the water distribution tray and the overflow hole is 1 / 3 of the height of the water distribution tray.

[0011] Optionally, it also includes: a fixed cover and a movable cover, the fixed cover is fixedly connected to the middle of the top of the water distribution tray, the water tank is connected to the fixed cover, the water outlet pipe passes through the fixed cover and extends to the inside of the water distribution tray, and the movable cover is detachably connected to both ends of the top of the water distribution tray.

[0012] Optionally, the water outlet pipe is connected to the water distribution main pipe through a flange.

[0013] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0014] A uniform water distribution device for a cross-flow cooling tower provided in an embodiment of the present disclosure comprises: a water storage tank, a water distribution tray, a water outlet pipe and a water distributor, the water outlet pipe and the water distributor, there are multiple water outlet pipes, one end of the water outlet pipes is connected to the through hole one by one, and the other end of the water outlet pipe extends into the water distribution tray; there are multiple water distributors, the water distributors are connected to the water distribution tray, the water distributors are located above the water distribution holes, the water distributors comprise: a water distribution main pipe, a diversion joint and multiple water distribution branch pipes, the water distribution main pipes are connected to the water outlet pipes one by one, the water distribution main pipes are connected to the water distribution branch pipes through the diversion joints, the ends of the water distribution branches away from the diversion joints are closed, and multiple water distribution holes are provided at the bottom of the water distribution branches. The water in the water storage tank enters the water distribution main pipe along the outlet pipe, and then is diverted to the water distribution branch pipe through the diversion joint, and then the water is distributed through the water distribution holes of the water distribution branch pipe; the water falls from the water distribution holes to the water distribution tray, and then is distributed through the water distribution holes; the water is divided once before the water is distributed, so that the water distribution is more continuous and uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A front view of a uniform water distribution device for a cross-flow cooling tower provided in an embodiment of the present disclosure;

[0016] Figure 2 A left view of a uniform water distribution device for a cross-flow cooling tower provided in an embodiment of the present disclosure;

[0017] Figure 3 A top view of a water distributor and a water distribution basin in a uniform water distribution device for a cross-flow cooling tower provided in an embodiment of the present disclosure.

[0018] Description of reference numerals:

[0019] 1- water storage tank, 10- water inlet, 2- water distribution tray, 20- water distribution hole, 21- overflow hole, 3- outlet pipe, 4- water distributor, 40- water distribution main pipe, 41- diversion joint, 42- water distribution branch pipe, 420- water distribution hole, 5- fixed cover, 6- movable cover, 7- flange. DETAILED DESCRIPTION

[0020] A specific implementation of the present utility model is described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present utility model is not limited by the specific implementation mode.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solution of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] In addition, in the description of the utility model, "plurality" means two or more than two. The terms "first" and "second" are used for descriptive purposes only and should not be understood to suggest or imply relative importance or implicitly indicate the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0024] Traditional cross-flow cooling towers generally distribute water through trough-type water distributors arranged on both sides of the tower. The outlet of the cooling tower's upper water pipe is arranged at one end of the trough-type water distributor. After entering the water, the cooling water flows from the water distribution hole near the outlet under the action of gravity through the water distribution hole to the cooling tower filler, and flows to the other far end. During the flow process, it continues to be distributed to the cooling tower filler through the water distribution hole it flows through.

[0025] In the above process, the liquid level in the water tank near the water inlet is often high, and the liquid level in the water tank at the far end is low. The flow rate through the water distribution holes is larger where the liquid level is high. If the water intake of the cooling tower is small, there may even be water distribution only at the near end, and no water flows at the far end, resulting in uneven water distribution in the filler, or even no water at one end. This phenomenon will lead to uneven water distribution in the cooling tower filler, unbalanced wind flow resistance in the filler, and more airflow will pass through the filler with less or no water, which will seriously affect the contact between the airflow and water in the filler and reduce the heat dissipation effect of the cooling tower.

[0026] To this end, an embodiment of the present disclosure provides a uniform water distribution device for a cross-flow cooling tower, which can improve the uniformity of water distribution within the cross-flow cooling tower filler.

[0027] At least one embodiment of the present disclosure provides a uniform water distribution device for a cross-flow cooling tower, comprising: a water storage tank and a water distribution pan, the water storage tank is located above the water distribution pan, a plurality of through holes are opened at the bottom of the water storage tank, a plurality of water distribution holes are opened at the bottom of the water distribution pan, and further comprising: a water outlet pipe and a water distributor, the water outlet pipe and the water distributor, there are a plurality of water outlet pipes, one end of the water outlet pipes is connected to the through holes one by one, and the other end of the water outlet pipe extends into the water distribution pan; there are a plurality of water distributors, the water distributors are connected to the water distribution pan, the water distributors are located above the water distribution holes, the water distributors comprise: a water distribution main pipe, a diversion joint and a plurality of water distribution branches, the water distribution main pipes are connected to the water outlet pipes one by one, the water distribution main pipes are connected to the water distribution branches via the diversion joints, the ends of the water distribution branches away from the diversion joints are closed, and a plurality of water distribution holes are opened at the bottom of the water distribution branches.

[0028] In the uniform water distribution device for a cross-flow cooling tower provided by the above-mentioned embodiment of the present disclosure, the water in the water storage tank enters the water distribution main pipe along the water outlet pipe, and then is diverted to the water distribution branch pipe through the diversion joint, and then the water is distributed through the water distribution holes of the water distribution branch pipe; the water falls from the water diversion holes to the water distribution tray, and then is distributed through the water distribution holes; the water is first divided once and then distributed, so that the water distribution is more continuous and uniform.

[0029] The present disclosure is described below through several specific embodiments. In order to keep the following description of the embodiments of the present disclosure clear and concise, detailed descriptions of known functions and known components may be omitted. When any component of the embodiments of the present disclosure appears in more than one figure, the component may be represented by the same reference numeral in each figure.

[0030] Figure 1 A front view of a uniform water distribution device for a cross-flow cooling tower provided in an embodiment of the present disclosure;

[0031] Figure 2 A left view of a uniform water distribution device for a cross-flow cooling tower provided in an embodiment of the present disclosure;

[0032] Figure 3A water distributor in a uniform water distribution device for a cross-flow cooling tower is provided in an embodiment of the present disclosure.

[0033] and a top view of the water distribution basin;

[0034] Refer to 1 to Figure 3 As shown, the embodiment of the present disclosure provides a uniform water distribution device for a cross-flow cooling tower, comprising: a water storage tank 1 and a water distribution tray 2, the water storage tank 1 is located above the water distribution tray 2, a plurality of through holes are opened at the bottom of the water storage tank 1, a plurality of water distribution holes 20 are opened at the bottom of the water distribution tray 2, and further comprising: a plurality of water outlet pipes 3 and a plurality of water distributors 4, the water outlet pipes and the water distributors, the water outlet pipes 3 are multiple, one end of the water outlet pipes 3 is connected to the through holes one by one, and the other end of the water outlet pipes 3 extends into the water distribution tray 2. Inside the pan 2; there are multiple water distributors 4, which are connected to the water distribution pan 2, and are located above the water distribution holes 20. The water distributors 4 include: a water distribution main pipe 40, a diversion joint 41, and multiple water distribution branches 42. The water distribution main pipes 40 are connected to the outlet pipes 3 one by one. The water distribution main pipes 40 and the water distribution branches 42 are connected through the diversion joints 41. The ends of the water distribution branches 42 away from the diversion joints 41 are closed, and multiple water distribution holes 420 are opened at the bottom of the water distribution branches 42. The outlet pipe 3 is connected to the water distribution main pipe 40 through the flange 7.

[0035] The water in the water storage tank 1 enters the water distribution main pipe 40 along the water outlet pipe 3, and then is diverted to the water distribution branch pipe 42 through the diversion joint 41, and then the water is distributed through the water diversion hole 420 of the water diversion branch pipe 42; the water falls from the water diversion hole 420 to the water distribution tray 2, and then is distributed through the water distribution hole 20; the water is first divided once and then distributed, so that the water distribution is more continuous and uniform.

[0036] The diameter of the water diversion hole 420 is larger than that of the water distribution hole 20. The diameter of the water distribution hole 20 is smaller than that of the water diversion hole 420. Water falls from the water diversion hole 420 to the water distribution tray 2, so that the water distribution tray 2 always stores a part of water, so that the water distribution can be more continuous and uniform.

[0037] Reference Figure 2 As shown, the diameter of the water distribution main pipe 40 is the same as the diameter of the water distribution branch pipe 42, and the water distribution branch pipe 42 is inclined downward by 15 degrees in the horizontal direction.

[0038] The water distribution branch pipe 42 is tilted downward by 15 degrees along the horizontal direction, so that the water can quickly fill the water distribution branch pipe 42, making the water distribution more uniform.

[0039] Reference Figure 2 As shown, the distance between the bottom end of the water distribution branch pipe 42 and the upper surface of the water distribution tray 2 is half the height of the water distribution tray 2. The side wall of the water distribution tray 2 is provided with an overflow hole 21, and the distance between the upper surface of the water distribution tray 2 and the overflow hole 21 is 1 / 3 of the height of the water distribution tray 2.

[0040] The distance between the bottom end of the water distribution branch pipe 42 and the upper surface of the water distribution tray 2 is half the height of the water distribution tray 2. Overflow holes 21 are provided on both sides of the water distribution tray 2 and the distance between the upper surface of the water distribution tray 2 and the overflow holes 21 is 1 / 3 of the height of the water distribution tray 2, which can effectively prevent the water level of the water distribution tray 2 from exceeding the water distributor 4 and causing the water distributor 4 to fail to operate normally.

[0041] Reference Figure 2 As shown, it also includes: a fixed cover 5 and a movable cover 6. The fixed cover 5 is fixedly connected to the middle of the top of the water distribution tray 2, the water tank 1 is connected to the fixed cover 5, the water outlet pipe 3 is passed through the fixed cover 5 and extends to the inside of the water distribution tray 2, and the movable cover 6 is detachably connected to the two ends of the top of the water distribution tray 2. It should be understood that the detachable connection can be a threaded connection, a snap connection and a hinge connection. This embodiment does not make specific restrictions and can be selected according to actual conditions.

[0042] Above the water distribution tray 2 are installed removable movable covers 6 on both sides and a fixed cover 5 in the middle for supporting the water tank 1, which can effectively reduce the entry of some dust, particulate matter, etc. in the air into the cooling tower. At the same time, maintenance personnel can open or remove the movable cover 6 to carry out maintenance work more conveniently.

[0043] The above disclosures are only several specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A uniform water distribution device for a cross-flow cooling tower, comprising: A water storage tank (1) and a water distribution tray (2), wherein the water storage tank (1) is located above the water distribution tray (2), characterized in that a plurality of through holes are provided at the bottom of the water storage tank (1), and a plurality of water distribution holes (20) are provided at the bottom of the water distribution tray (2), and further comprising: There are multiple water outlet pipes (3), one end of each of the water outlet pipes (3) is connected to the through holes in a one-to-one correspondence, and the other end of each of the water outlet pipes (3) extends into the interior of the water distribution tray (2); There are a plurality of water distributors (4), the water distributors (4) being connected to the water distribution tray (2), the water distributors (4) being located above the water distribution holes (20), the water distributors (4) comprising: a water distribution main pipe (40), a diversion joint (41) and a plurality of water distribution branch pipes (42), the water distribution main pipes (40) being connected to the water outlet pipes (3) one by one, the water distribution main pipes (40) being connected to the water distribution branch pipes (42) via the diversion joints (41), the end of the water distribution branch pipe (42) away from the diversion joint (41) being closed, and a plurality of water distribution holes (420) being provided at the bottom of the water distribution branch pipe (42).

2. A uniform water distribution device for a cross-flow cooling tower according to claim 1, characterized in that: The diameter of the water diversion hole (420) is larger than the diameter of the water distribution hole (20).

3. A uniform water distribution device for a cross-flow cooling tower according to claim 2, characterized in that: The diameter of the water distribution main pipe (40) is the same as the diameter of the water distribution branch pipe (42), and the water distribution branch pipe (42) is inclined downward by 15 degrees in the horizontal direction.

4. A uniform water distribution device for a cross-flow cooling tower according to claim 3, characterized in that: The distance between the bottom end of the water distribution branch pipe (42) and the upper surface of the water distribution tray (2) is half the height of the water distribution tray (2).

5. A uniform water distribution device for a cross-flow cooling tower according to claim 4, characterized in that: An overflow hole (21) is provided on the side wall of the water distribution tray (2), and the distance between the upper surface of the water distribution tray (2) and the overflow hole (21) is 1 / 3 of the height of the water distribution tray (2).

6. The uniform water distribution device for a cross-flow cooling tower according to claim 1, characterized in that: Also includes: A fixed cover (5) and a movable cover (6), wherein the fixed cover (5) is fixedly connected to the middle of the top of the water distribution tray (2), the water storage tank (1) is connected to the fixed cover (5), the water outlet pipe (3) passes through the fixed cover (5) and extends to the inside of the water distribution tray (2), and the movable cover (6) is detachably connected to the two ends of the top of the water distribution tray (2).

7. The uniform water distribution device for a cross-flow cooling tower according to claim 1, characterized in that: The water outlet pipe (3) is connected to the water distribution main pipe (40) via a flange (7).

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