Water distributor and chilled water storage device

Abstract

The invention relates to the technical field of chilled water storage devices, and particularly discloses a water distributor and a chilled water storage device. The water distributor comprises a flow equalizing plate, a distribution main pipe, a distribution secondary pipe and a flow equalizing device, the distribution secondary pipe is connected with the distribution main pipe and the flow equalizing plate and discharges water to one side of the flow equalizing plate, and a first buffer cavity is formed in the water outlet side of the distribution secondary pipe; the flow equalizing device comprises an inner flow guide plate of an annular structure, a flow guide cover plate and a flow guide bottom plate. Step-by-step conversion from dynamic pressure to static pressure of fluid is achieved through a multi-stage buffer cavity structure, the water distribution area and the main body flow area are designed in a partitioned mode to compress the vertical space and reduce the cold loss, and the modularized flow equalizing device is matched with cold storage devices of different scales by adjusting the distance between flow guide plates and the number of distribution main pipes. Meanwhile, rapid forming is achieved based on a conventional metal plate bending and welding process, special molds or materials are not needed, the construction period is shortened, the comprehensive cost is reduced, and the problems that a traditional water distributor is uneven in distribution, thermocline disturbance is caused, and the space utilization rate is low are integrally solved.

Description

Technical Field

[0001] The present invention relates to the technical field of water cooling devices, and in particular to a water distributor and a water cooling device. Background Art

[0002] Chilled water storage technology, a key application area in the energy storage field, relies on the principle of temperature stratification to achieve efficient storage and release of cold energy. Traditional chilled water storage devices typically use water distributors as key components for fluid distribution, and their performance directly impacts the stability of the thermocline layer and the efficiency of cold storage.

[0003] The current mainstream water distributor designs are mainly divided into two forms: direct orifice outflow and multi-stage distribution. The former achieves water flow distribution by opening dense holes, but high-speed outflow can easily cause fluid disturbance, resulting in an increase in the thickness of the thermocline layer. Although the latter improves flow distribution through a graded pipeline structure, it still has the technical bottleneck of uneven fluid distribution.

[0004] Chinese patent publication number CN107806783A discloses a horizontal cold storage tank with a fishbone-shaped water distributor. The tank comprises a cold storage tank body, a main pipe, an upper water distributor, and a lower water distributor. Two right-angled main pipes are installed within the cold storage tank body, one vertical opening of which connects to the middle of the trapezoidal header of the upper water distributor, and the other opening connects to the middle of the trapezoidal header of the lower water distributor. The upper and lower water distributors have identical structures, consisting of two opposing open slots. Several brackets are provided between the trapezoidal header and the cold storage tank body wall, creating a gap between them. The slots adjacent to the trapezoidal header are provided with several through-holes along their lengths, each of which connects to one end of an arc-shaped elbow. The arc-shaped elbow, facing the tank body, has several water inlet and outlet holes. This type of cold storage tank suffers from large water distribution area space and significant cooling loss. Its uniformity is highly dependent on the self-balancing ability of the piping system, often requiring complex structural design and precise installation techniques, resulting in high equipment manufacturing costs.

[0005] In addition, the existing solutions' reliance on special materials and customized processing also restricts the standardized promotion and engineering adaptability of the products, making it difficult to meet the differentiated needs of projects of different sizes. Summary of the Invention

[0006] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a water distributor and a water cooling storage device to solve the above-mentioned problems.

[0007] A water distributor, comprising:

[0008] Current balancing plate;

[0009] A distribution main pipe is provided on one side of the current equalizing plate;

[0010] A plurality of distribution secondary pipes arranged at intervals, connecting the distribution main pipe and the flow equalizing plate and discharging water to the other side of the flow equalizing plate, wherein the water outlet side of the distribution secondary pipe forms a first buffer cavity;

[0011] The flow balancing device includes an internal flow guide plate, a flow guide cover plate and a flow guide bottom plate in an annular structure, wherein:

[0012] The internal guide plate is connected to one side of the flow equalizing plate;

[0013] The guide cover plate covers the inner guide plate, forming a second buffer cavity therebetween, and the guide cover plate and the flow equalizing plate are spaced apart to form an annular inlet surface;

[0014] A third buffer cavity is formed between two adjacent internal guide plates;

[0015] The guide bottom plate and the inner guide plate are separated to form a fourth buffer cavity, and are separated to form an annular outflow surface with the flow equalizing plate;

[0016] The water flow path of the water distributor is: distribution main pipe, distribution secondary pipe, first buffer cavity, annular inlet surface, second buffer cavity, third buffer cavity, fourth buffer cavity, annular outlet surface.

[0017] Specifically, the annular inlet surface and the annular outlet surface have the same vertical height.

[0018] Specifically, the vertical height of the internal guide plate is 5 to 10 times the vertical height of the outflow surface.

[0019] Specifically, there are multiple distribution main pipes, and the multiple distribution main pipes are evenly distributed in a radial shape.

[0020] Specifically, the distribution secondary pipes and the flow balancing device are spaced apart, and the number of the distribution secondary pipes on the same distribution main pipe is one more than the number of the flow balancing devices.

[0021] A water cooling device, comprising:

[0022] The device body has a main fluid area and a water distribution area inside;

[0023] The water distributor is arranged between the main fluid area and the water distribution area, and is used to evenly distribute water to the main fluid area;

[0024] The water outlet of the annular outflow surface is directly connected to the main fluid area.

[0025] Specifically, the device body is a cold water storage tank or a cold water storage pool.

[0026] Specifically, a central column is provided in the cold water storage tank, and the water distributors are provided at both upper and lower ends of the central column.

[0027] Beneficial effects of the present invention:

[0028] 1. The water distributor and water chiller device of this application utilize a multi-stage buffer cavity structure. Through step-by-step fluid diffusion and kinetic energy conversion, this effectively eliminates the inherent flow distribution deviations in distribution piping systems. Water flows through four stages of buffer cavities, completing the continuous conversion from dynamic pressure to static pressure. This completely resolves the problem of temperature fluctuations caused by uneven distribution in traditional water distributors.

[0029] 2. The water distribution area and the main fluid area are designed to be zoned, with the distribution piping system placed outside the water distribution area. This significantly reduces the vertical space requirement for the water distributor, reduces the ineffective heat conduction area of the cooling exchange interface, and significantly reduces the overall cooling loss.

[0030] 3. The modular flow-sharing device adopts a standardized size design. By adjusting the guide plate spacing and the number of distribution pipes, it can quickly adapt to the engineering requirements of cold storage tanks of different volumes, achieving full coverage of scenarios from small cold storage pools to large cold storage tanks.

[0031] 4. The overall structure is based on conventional sheet metal processing technology and uses mature technologies such as bending and welding to achieve rapid prototyping. It does not require customized molds or special materials. The construction period is significantly shortened compared to traditional solutions, and the overall cost is significantly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A cross-sectional view of the water cooling device of the present application;

[0033] Figure 2 for Figure 1 Enlarged view of part A;

[0034] Figure 3 This is a top view of the water distributor of the present application, in which the dotted line portion refers to the distribution main pipe blocked by the flow equalizing plate.

[0035] The figures are marked as: flow balancing plate 10, distribution main pipe 20, distribution secondary pipe 30, first buffer cavity 51, flow balancing device 40, internal flow guide plate 41, flow guide cover 42, flow guide bottom plate 43, second buffer cavity 53, annular inlet surface 52, third buffer cavity 54, fourth buffer cavity 55, annular outlet surface 56, main fluid area 57, cold water storage tank 60, and central column 61. DETAILED DESCRIPTION

[0036] The present invention provides a water distributor and a water cooling device. To make the objectives, technical solutions, and effects of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific examples described herein are intended only to illustrate the present invention and are not intended to limit the present invention.

[0037] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0038] Please refer to Figures 1 to 3 A water storage device of this embodiment includes a device body and a water distributor; a main fluid area 57 and a water distribution area are provided inside the device body; the water distributor is arranged between the main fluid area 57 and the water distribution area, and is used to evenly distribute water to the main fluid area 57; the water distributor includes a flow equalizing plate 10, a distribution main pipe 20 arranged on the side of the flow equalizing plate 10 facing the main fluid area 57, a plurality of spaced distribution secondary pipes 30, and a flow equalizing device 40, the distribution secondary pipes 30 connecting the distribution main pipe 20 and the flow equalizing plate 10 and discharging water on the other side of the flow equalizing plate 10, and forming a first buffer cavity 51 on the water outlet side of the distribution secondary pipe 30; the flow equalizing device 40 includes an internal flow guide plate 41 in an annular structure, a flow guide cover plate 42, and a flow guide bottom plate 43, wherein:

[0039] The internal guide plate 41 is connected to the side of the flow equalizing plate 10 away from the main fluid area 57;

[0040] The guide cover plate 42 covers the inner guide plate 41, and a second buffer cavity 53 is formed between the guide cover plate 42 and the flow equalizing plate 10, and an annular flow inlet surface 52 is formed between the guide cover plate 42 and the flow equalizing plate 10;

[0041] A third buffer cavity 54 is formed between two adjacent internal guide plates 41;

[0042] The guide bottom plate 43 and the inner guide plate 41 are spaced apart to form a fourth buffer cavity 55 , and are spaced apart from the flow equalizing plate 10 to form an annular outflow surface 56 ;

[0043] The water flow path of the water cold storage device is: distribution main pipe 20, distribution secondary pipe 30, first buffer cavity 51, annular inlet surface 52, second buffer cavity 53, third buffer cavity 54, fourth buffer cavity 55, annular outlet surface 56, and main fluid area 57.

[0044] This water storage device achieves efficient temperature stratification by setting up a multi-stage flow guide structure. Its core is the water distributor set in the device body and the main fluid area 57 working together. After the distribution main pipe 20 of the water distributor is connected to the external water supply system, the water flows through the distribution secondary pipe 30 and enters the first buffer cavity 51 on the side of the equalizing plate 10 to complete the initial kinetic energy dissipation; then the water flows through the annular inlet surface 52 formed between the flow guide cover 42 and the equalizing plate 10 to enter the second buffer cavity 53, and realizes flow direction adjustment in the annular flow channel formed by the flow guide cover 42 and the internal flow guide plate 41; the third buffer cavity 54 formed by the interval between two adjacent internal flow guide plates 41 evenly distributes the water flow along the circumference, and finally completes the static pressure recovery through the fourth buffer cavity 55 formed by the flow guide bottom plate 43 and the internal flow guide plate 41, and the water flows horizontally into the main fluid area 57 from the annular outlet surface 56 at a lower flow rate.

[0045] This application adopts a vertical stacking design of the equalizing plate 10 and the annular equalizing device 40, compressing the height of the water distribution area to one-third of the traditional structure. The bottom water retaining diversion design of the guide bottom plate 43 and the width matching design of the annular outlet surface 56 make the outlet velocity field more uniform. The alternating arrangement structure of the distribution secondary pipe 30 and the annular equalizing device 40, combined with the step-by-step pressure stabilization from the first buffer cavity 51 to the fourth buffer cavity 55, can still maintain the flow deviation of the annular outlet surface 56 ≤±3% under the working condition of flow fluctuation ±20%. The modular equalizing plate 10 assembly can be adapted to cold storage tanks of different specifications by adjusting the spacing between the internal guide plates 41. The guide cover plate 42 and the guide bottom plate 43 form a standardized production unit. During installation, it is only necessary to connect the distribution main pipe 20 to the reserved interface of the device body to complete the system integration, which significantly shortens the construction period.

[0046] Furthermore, the vertical heights of the annular inlet surface 52 and the annular outlet surface 56 (i.e., the vertical dimensions of the annular flow channel) are identical, achieving efficient conversion between dynamic and static pressures through symmetrical flow cross-sectional areas. When water flows from the distribution secondary pipe 30 into the first buffer chamber 51, and then through the annular inlet surface 52 into the second buffer chamber 53, the vertical heights of the annular inlet surface 52 and the annular outlet surface 56 are consistent, ensuring that the flow cross-sectional area remains constant. This design ensures that dynamic pressure can be evenly converted into static pressure during the transfer of water velocity from the second buffer chamber 53 to the fourth buffer chamber 55, avoiding sudden changes in flow velocity caused by differences in inlet / outlet flow areas in traditional designs.

[0047] As a preferred embodiment, the vertical height of the internal guide plate 41 is 5 to 10 times the vertical height of the outlet surface 56; by extending the diversion path, precise control of the water flow direction and optimized energy dissipation are achieved. When the water flows from the second buffer cavity 53 into the third buffer cavity 54 between adjacent internal guide plates 41, the vertical height of the internal guide plate 41 is much greater than the vertical height of the annular outlet surface 56, forcing the water flow to form a stable wall-attached flow along the surface of the guide plate. This design increases the water flow range within the third buffer cavity 54 to 3-5 times that of traditional diversion structures, improves the dynamic pressure conversion efficiency by more than 40%, and suppresses the flow velocity fluctuation amplitude to within the range of ±0.015m / s. Actual measurements show that when the height of the internal guide plate 41 reaches 7 times the height of the outlet surface 56, the vertical velocity component at the outlet of the fourth buffer cavity 55 can be reduced to below 0.01m / s, and the horizontal outflow angle deviation is ≤±2°, effectively eliminating the thermocline layer disturbance caused by water flow impact.

[0048] As a preferred embodiment, there are multiple distribution main pipes 20, and the multiple distribution main pipes 20 are radially evenly distributed, achieving dynamic balance of fluid in three-dimensional space through a multi-directional diversion mechanism. The distribution main pipe 20 extends radially with the center of the equalizing plate 10 as the origin. Each distribution main pipe 20 and the corresponding distribution sub-pipe 30 form a branch-shaped diversion unit, effectively covering the entire area of the water distributor. When the water flow is connected from the external pipeline, the radial structure automatically distributes the incoming flow evenly in the circumferential direction, eliminating the deviation phenomenon caused by the traditional single-pipe water inlet. The alternating arrangement pattern of the distribution sub-pipe 30 and the annular equalizing device 40, combined with the symmetrical diversion characteristics of the radial distribution main pipe 20, forms a natural compensation mechanism for the pressure gradient distribution in the first buffer cavity 51, which can maintain the flow deviation of each distribution sub-pipe 30 ≤±4% even under extreme working conditions. This layout can also simplify the installation structure. During installation, it is only necessary to locate the radial intersection point of the central column 61 and the distribution main pipe 20. The spatial positioning of the multi-stage pipeline can be quickly completed through the self-centering characteristics, thereby improving construction efficiency.

[0049] As a preferred embodiment, the distribution sub-tubes 30 and the flow equalizing device 40 are spaced apart, and the number of distribution sub-tubes 30 on the same distribution main pipe 20 is one more than the number of flow equalizing devices 40, so that when the water flows into the first buffer cavity 51, the fluid diffusion area between adjacent distribution sub-tubes 30 and the rectification area of the flow equalizing device 40 complement each other. When the water flows from the distribution main pipe 20 to the distribution sub-tubes 30, a pressure compensation channel is formed between the distribution sub-tubes 30 at the end and the flow equalizing device 40 at the head end, which effectively offsets the pressure drop gradient caused by the end effect of the pipeline. This alternating layout enables the annular flow equalizing device 40 to form a continuously distributed rectification unit in the circumferential direction, and the additional number of distribution sub-tubes 30 fills the flow blank area between adjacent flow equalizing devices 40, reducing the static pressure distribution deviation of the entire first buffer cavity 51.

[0050] In this embodiment, the device body is a cold water storage tank 60; a central column 61 is provided in the cold water storage tank 60, and water distributors are provided at the upper and lower ends of the central column 61; specifically, the distribution main pipe 20 is fixedly installed radially along the circumference of the central column 61, and its axis extends to the tank wall area at a specific angle to the vertical line of the central column 61. The two-way water distributors symmetrically arranged at the upper and lower ends of the central column 61 realize the synergistic effect of mechanical bearing and hydraulic distribution through the column, and the flow equalizing plates 10 of the upper and lower water distributors are respectively orthogonally connected to the central column 61. The distribution main pipe 20 and the central column 61 can be embedded in a structure such as a flange, and rapid positioning and installation can be achieved through the guide groove on the surface of the central column 61, so that the radially distributed distribution secondary pipes 30 and the annular flow equalizing device 40 form a spatially staggered water flow channel. This structural design enables the water distribution system to form an axisymmetric three-dimensional diversion network in the cold water storage tank 60, and realizes the water distribution stability of the large-span tank through the mechanical support of the central column 61. The symmetrical arrangement of the two-way water distributor effectively balances the disturbance of the inlet and outlet water flows to the oblique temperature layer. The temperature sensor wiring channel can also be integrated inside the central column 61 to realize structural and functional integration.

[0051] It should be noted that, in other embodiments, the device body may also be a cold water storage tank and is not limited to the cold water storage tank 60 of this embodiment.

[0052] The above specifically describes the preferred embodiments of the present invention, but the present invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present invention.

Claims

1. A water distributor, characterized in that: include: Current balancing plate (10); A distribution main pipe (20) is provided on one side of the flow balancing plate (10); a plurality of distribution secondary pipes (30) arranged at intervals, which connect the distribution main pipe (20) and the flow equalizing plate (10) and discharge water to the other side of the flow equalizing plate (10); the water outlet side of the distribution secondary pipes (30) forms a first buffer cavity (51); The flow balancing device (40) comprises an inner flow guide plate (41) in an annular structure, a flow guide cover plate (42) and a flow guide bottom plate (43), wherein: The internal guide plate (41) is connected to one side of the flow equalizing plate (10); The flow guide cover plate (42) covers the internal flow guide plate (41), forming a second buffer cavity (53) therebetween, and the flow guide cover plate (42) and the flow equalizing plate (10) are spaced apart to form an annular flow inlet surface (52); A third buffer cavity (54) is formed between two adjacent internal guide plates (41); The guide bottom plate (43) and the internal guide plate (41) are spaced apart to form a fourth buffer cavity (55), and are spaced apart from the flow equalizing plate (10) to form an annular outflow surface (56); The water flow path of the water distributor is sequentially: a distribution main pipe (20), a distribution secondary pipe (30), a first buffer cavity (51), an annular inlet surface (52), a second buffer cavity (53), a third buffer cavity (54), a fourth buffer cavity (55), and an annular outlet surface (56).

2. A water distributor according to claim 1, characterized in that: The annular inlet surface (52) and the annular outlet surface (56) have the same vertical height.

3. A water distributor according to claim 1, characterized in that: The vertical height of the internal guide plate (41) is 5 to 10 times the vertical height of the outflow surface (56).

4. A water distributor according to claim 1, characterized in that: There are a plurality of distribution main pipes (20), and the plurality of distribution main pipes (20) are evenly distributed in a radial shape.

5. The water distributor according to claim 1, characterized in that: The distribution secondary pipe (30) and the flow balancing device (40) are spaced apart, and the number of the distribution secondary pipe (30) on the same distribution main pipe (20) is one more than the number of the flow balancing device (40).

6. A water cooling device, characterized in that: include: The device body has a main fluid area (57) and a water distribution area inside; The water distributor according to any one of claims 1 to 5 is arranged between the main fluid area (57) and the water distribution area, and is used to evenly distribute water to the main fluid area (57); The water outlet of the annular outflow surface (56) is directly connected to the main fluid area (57).

7. A water cooling device according to claim 6, characterized in that: The device body is a cold water storage tank (60) or a cold water storage pool.

8. A water cooling device according to claim 7, characterized in that: A central column (61) is provided in the cold water storage tank (60), and the water distributors are provided at both upper and lower ends of the central column (61).

Images