Inner water inlet pipe assembly for cooling tower

Abstract

The utility model discloses an inner water inlet pipe assembly for a cooling tower, which comprises a water inlet throat, a first water inlet pipe and a second water inlet pipe, the first water inlet pipe and the second water inlet pipe are connected with the water inlet throat, and the first water inlet pipe is connected with a first water distribution pipe and a second water distribution pipe through a first Y-shaped water distribution throat to form a Y-shaped pipeline. Water outlets of the first water distribution pipe and the second water distribution pipe are connected with the first water distributor; the second water inlet pipe is connected with a third water distribution pipe and a fourth water distribution pipe through a second Y-shaped water distribution throat to form a Y-shaped pipeline, and water outlets of the third water distribution pipe and the fourth water distribution pipe are connected with a second water distributor. By adopting the water inlet pipe assembly with the Y-shaped pipeline, water inlet and water distribution of the cooling tower are more uniform, pipe distribution of the whole inner water inlet pipe assembly is more concise, and pipes and connecting valves are saved. And a square elbow of the inner water inlet pipeline is reduced, so that the resistance of circulating water in the water inlet pipe is reduced, and the load of the water pump is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of refrigeration equipment, and particularly relates to an inner water inlet pipe assembly for a cooling tower. Background Art

[0002] As a cooling and heat dissipation device for air conditioning and refrigeration systems, cooling towers use water as a circulating coolant, absorb heat from the system and then discharge it into the air to reduce the water temperature. They have been widely used in various places. Inside the cooling tower, a set of water inlet and water distribution pipes need to be installed to distribute the circulating water to the cooling unit of the cooling tower.

[0003] like Figure 1 As shown, the internal water inlet pipe used in the existing cooling tower includes a water inlet pipe 1 and a water inlet pipe 2 connected to the water inlet pipe. The water inlet pipe 2 is connected to the water pipe 4 through a three-way joint 3, and a split water distributor 5 is connected to the end of each water pipe. As can be seen from the figure, there are many pipes and elbows in the structure (four elbows are required from the water inlet pipe 1 to each water distributor 5), and each elbow is a right-angle elbow, which increases the resistance of the circulating water in the water inlet pipe, thereby increasing the load of the water pump. In addition, the complex pipeline structure undoubtedly increases the cost of pipes. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides an inner water inlet pipe assembly for a cooling tower to simplify the structure of the water inlet pipe.

[0005] The technical solution of the utility model is an internal water inlet pipe assembly for a cooling tower, comprising a water inlet pipe, and a first water inlet pipe and a second water inlet pipe connected to the water inlet pipe, wherein the first water inlet pipe is connected to a first water distribution pipe and a second water distribution pipe through a first Y-shaped water splitter to form a Y-shaped pipeline, and the water outlets of the first water distribution pipe and the second water distribution pipe are connected to a first water distributor; the second water inlet pipe is connected to a third water distribution pipe and a fourth water distribution pipe through a second Y-shaped water splitter to form a Y-shaped pipeline, and the water outlets of the third water distribution pipe and the fourth water distribution pipe are connected to a second water distributor.

[0006] Furthermore, the first water distributor and the second water distributor are tubular water distributors. The water outlets of the first water distributor pipe and the second water distributor pipe are respectively connected to the first water inlet and the second water inlet at both ends of the pipeline of the first water distributor. The water outlets of the third water distributor pipe and the fourth water distributor pipe are respectively connected to the third water inlet and the fourth water inlet at both ends of the pipeline of the second water distributor.

[0007] Furthermore, a plurality of water outlet holes are provided on the pipes of the first water distributor and the second water distributor.

[0008] Furthermore, the water outlet holes are unevenly distributed on the pipes of the first water distributor and the second water distributor, and the number of the water outlet holes distributed at both ends of the pipe is greater than that distributed in the middle of the pipe.

[0009] Furthermore, a reducing pipe is connected between the first Y-shaped water distribution pipe and the first water distribution pipe and the second water distribution pipe. A reducing pipe is connected between the second Y-shaped water distribution pipe and the third water distribution pipe and the fourth water distribution pipe.

[0010] In addition, the utility model also provides a cooling tower, including a tower body and the internal water inlet pipe assembly as described above, wherein the first water distributor and the second water distributor of the internal water inlet pipe assembly are respectively connected to the water spreading tray on the top of the tower body.

[0011] The utility model has the following beneficial effects:

[0012] First, by using a Y-shaped pipeline formed by connecting the first water inlet pipe, the first Y-shaped water distribution pipe, the first water distribution pipe, and the second water distribution pipe, and a Y-shaped pipeline formed by connecting the second water inlet pipe, the second Y-shaped water distribution pipe, the third water distribution pipe, and the fourth water distribution pipe, the water inlet and water distribution of the cooling tower are more uniform. The pipe layout of the entire internal water inlet pipe assembly is more concise, saving pipe materials and connecting valves.

[0013] Second, the Y-shaped pipe can reduce the right-angle elbows in the inner water inlet pipe, thereby reducing the resistance of circulating water in the water inlet pipe and reducing the load on the water pump.

[0014] Third, the use of a tubular water distributor increases the water distribution area compared to the existing split water distributor. The water flowing out of the water distribution pipe can dissipate energy (slow down the flow rate of the water and eliminate energy) through the water distributor pipe, making the water distribution more uniform and saving materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the water inlet pipe structure of an existing cooling tower.

[0016] Figure 2 It is a schematic diagram of the structure of the inner water inlet pipe assembly of the cooling tower described in the embodiment of the utility model.

[0017] Figure 3(a) to Figure 3(c) yes Figure 2 Schematic diagrams of the side structures of the inner water inlet pipe assembly of the cooling tower.

[0018] FIG4( a ) is a side structural diagram of the inner water inlet pipe assembly according to an embodiment of the utility model installed on a cooling tower.

[0019] FIG4( b ) is a structural diagram of the inner water inlet pipe assembly according to an embodiment of the utility model installed on the top of a cooling tower.

[0020] In the figure: 10-water inlet, 21-first water inlet pipe, 22-second water inlet pipe, 31-first Y-type water distribution pipe, 32-second Y-type water distribution pipe, 41-first water distribution pipe, 42-second water distribution pipe, 43-third water distribution pipe, 44-fourth water distribution pipe, 45-reducing pipe, 51-first water distributor, 52-second water distributor, 53-water outlet, 511-first water inlet, 512-second water inlet, 521-third water inlet, 522-fourth water inlet, 100-inner water inlet pipe assembly, 200-cooling tower body, 201-water spreading tray, 202-sprinkling hole. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the following embodiments, other embodiments obtained by ordinary technicians in this field without creative work are all within the protection scope of the utility model.

[0022] If there are descriptions such as "first" and "second" in the embodiments of the utility model, the descriptions of "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the technical features defined by "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it.

[0023] like Figure 2 and Figures 3(a) to 3(c)As shown, the inner water inlet pipe assembly 100 of the cooling tower described in this embodiment includes a water inlet pipe 10, and a first water inlet pipe 21 and a second water inlet pipe 22 connected to the water inlet pipe 10. The first water inlet pipe 21 is connected to the first water distribution pipe 41 and the second water distribution pipe 42 through the first Y-shaped water distribution pipe 31 to form a Y-shaped pipeline. The water outlets of the first water distribution pipe 41 and the second water distribution pipe 42 are connected to the first water distributor 51. In this embodiment, the first water inlet pipe 21 is directly connected to the first Y-shaped water distribution pipe 31 through a flange. The diameters of the first water distribution pipe 41 and the second water distribution pipe 42 are slightly smaller than the diameter of the first Y-shaped water distribution pipe 31. In order to adapt to different pipe diameters, a reducer 45 is also connected between the first Y-shaped water distribution pipe 31 and the first water distribution pipe 41 and the second water distribution pipe 42. Based on the same structure, the second water inlet pipe 22 is connected to the third water distribution pipe 43 and the fourth water distribution pipe 44 through the second Y-shaped water distribution pipe 32 to form a Y-shaped pipeline, and the water outlets of the third water distribution pipe 43 and the fourth water distribution pipe 44 are connected to the second water distributor 52. The second water inlet pipe 22 is directly connected to the second Y-shaped water distribution pipe 32 through a flange, and a reducer 45 is also connected between the second Y-shaped water distribution pipe 32 and the third water distribution pipe 43 and the fourth water distribution pipe 44.

[0024] In this embodiment, the first water distributor 51 and the second water distributor 52 are both tubular water distributors, which are straight tube structures with closed ends. Water inlets are provided on the tube walls near the ends of the two ends of the pipe, and a plurality of water outlets are provided on the tube walls. Specifically, the water outlets of the first water distribution pipe 41 and the second water distribution pipe 42 are respectively connected to the first water inlet 511 and the second water inlet 512 at both ends of the pipe of the first water distributor 51 through flanges. The water outlets of the third water distribution pipe 43 and the fourth water distribution pipe 44 are respectively connected to the third water inlet 521 and the fourth water inlet 522 at both ends of the pipe of the second water distributor 52 through flanges. A plurality of water outlets 53 are provided on the pipes of the first water distributor 51 and the second water distributor 52, as shown in FIG. 3(c).

[0025] In order to achieve uniform water distribution, the water outlet holes 53 are unevenly distributed on the pipeline. Specifically, the number of water outlet holes 53 distributed at both ends of the pipeline is greater than that distributed in the middle of the pipeline (calculated as the number of holes on the pipeline of the same length). In this embodiment, at least one water outlet hole 53 is arranged axially (i.e., the extension direction of the pipeline) on the pipe wall, and the spacing between the water outlet holes at both ends of the pipeline is small (because the water flow entering from the water distribution pipe is large and the flow rate is fast), and the spacing between the water outlet holes in the middle of the pipeline is large (the water flow in the middle of the pipeline is slowed down). Compared with the traditional split-type water distributor, the pipeline-type water distributor can effectively increase the water distribution area, and the water flowing out of the water distribution pipes 41, 42, 43, and 44 can fully dissipate energy (slow down the flow rate of water and eliminate energy) through the pipelines of the water distributors 51 and 52, which is conducive to fully distributing the water coming in from both ends to the middle of the pipeline, thereby achieving the effect of uniform water distribution. Specifically, the distribution range of the water outlet holes on the pipeline is wide, which is conducive to linearly distributing the concentrated water inflow to the entire watering basin; and the total water outlet area of ​​the water outlet holes is large, which is conducive to slowing down the water distribution flow rate, thereby achieving the effect of uniform water distribution. In addition, uniform water distribution can also be achieved by using water outlet holes with different apertures (for example, the aperture of the water outlet holes gradually increases from the two ends to the middle of the pipeline), which is not limited here.

[0026] like Figure 4(a) , 4(b) As shown, the internal water inlet pipe assembly 100 of this embodiment is installed inside the tower body 200 of the cooling tower, the water inlet pipe 10 is connected to the external water supply pipe (not shown), the first water distributor 51 and the second water distributor 52 of the internal water inlet pipe assembly are respectively connected to the water spreading plate 201 on the top of the tower body, and a watering hole 202 is provided at the bottom of the water spreading plate 201, corresponding to the filler etc. below. When in use, the water flow of the external water supply pipe enters the tower body 200 from the water inlet pipe 10, is divided through the first water inlet pipe 21 and the second water inlet pipe 22, and then respectively distributed to the first water distribution pipe 41, the second water distribution pipe 42, the third water distribution pipe 43, and the fourth water distribution pipe 44 through the first Y-type water distribution pipe 31 and the second Y-type water distribution pipe 32. The water flow of the first water distribution pipe 41 and the second water distribution pipe 42 flows evenly into the water distribution plate 201 through the first water distributor 51, and the water flow of the third water distribution pipe 43 and the fourth water distribution pipe 44 flows evenly into the water distribution plate 201 through the second water distributor 52, and then flows into the filler from the watering hole 202 at the bottom of the water distribution plate to achieve water distribution. Other structures and working principles of the cooling tower are not described here.

[0027] In addition, the inner water inlet pipe assembly described in this embodiment can also adopt a single-sided structure (that is, the water inlet pipe is only connected to one water inlet pipe), so as to be used in a single-sided cooling tower.

[0028] As described above, this embodiment uses a Y-shaped pipe water inlet assembly to make the water inlet and water distribution of the cooling tower more uniform, and the pipe layout of the entire internal water inlet assembly is more concise, saving pipes and connecting valves. In addition, the right-angle elbows of the internal water inlet pipe are reduced, thereby reducing the resistance of the circulating water in the water inlet pipe and reducing the load of the water pump. In addition, the use of a tubular water distributor makes the water distribution more uniform compared to the existing split water distributor, saving materials and costs.

[0029] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An inner water inlet pipe assembly for a cooling tower, characterized in that: It includes a water inlet, and a first water inlet pipe and a second water inlet pipe connected to the water inlet. The first water inlet pipe is connected to the first water distribution pipe and the second water distribution pipe through a first Y-shaped water splitter to form a Y-shaped pipeline. The water outlets of the first water distribution pipe and the second water distribution pipe are connected to the first water distributor; the second water inlet pipe is connected to the third water distribution pipe and the fourth water distribution pipe through a second Y-shaped water splitter to form a Y-shaped pipeline. The water outlets of the third water distribution pipe and the fourth water distribution pipe are connected to the second water distributor.

2. The inner water inlet pipe assembly for a cooling tower according to claim 1, characterized in that: The first water distributor and the second water distributor are tubular water distributors.

3. The inner water inlet pipe assembly for a cooling tower according to claim 2, characterized in that: The water outlets of the first water distribution pipe and the second water distribution pipe are respectively connected to the first water inlet and the second water inlet at both ends of the pipeline of the first water distributor.

4. The inner water inlet pipe assembly for a cooling tower according to claim 2, characterized in that: The water outlets of the third water distribution pipe and the fourth water distribution pipe are respectively connected to the third water inlet and the fourth water inlet at both ends of the pipeline of the second water distributor.

5. The inner water inlet pipe assembly for a cooling tower according to claim 3 or 4, characterized in that: A plurality of water outlet holes are arranged on the pipes of the first water distributor and the second water distributor.

6. The inner water inlet pipe assembly for a cooling tower according to claim 5, characterized in that: The water outlet holes are unevenly distributed on the pipes of the first water distributor and the second water distributor.

7. The inner water inlet pipe assembly for a cooling tower according to claim 6, characterized in that: The number of the water outlet holes distributed at both ends of the pipeline is greater than that distributed in the middle of the pipeline.

8. The inner water inlet pipe assembly for a cooling tower according to claim 1, characterized in that: A reducing pipe is also connected between the first Y-shaped water distribution pipe and the first water distribution pipe and the second water distribution pipe.

9. The inner water inlet pipe assembly for a cooling tower according to claim 1, characterized in that: A reducing pipe is also connected between the second Y-shaped water distribution pipe and the third water distribution pipe and the fourth water distribution pipe.

10. A cooling tower, comprising a tower body, characterized in that: It also includes an inner water inlet pipe assembly as described in any one of claims 1 to 9, wherein the first water distributor and the second water distributor of the inner water inlet pipe assembly are respectively connected to the water spreading plate on the top of the tower body.

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