Disc-shaped water distributor and chilled water storage device comprising same

Abstract

The utility model discloses a disc-shaped water distributor and a chilled water storage device comprising the same. The disc-shaped water distributor comprises a water distribution pipe, a first water baffle, a second water baffle and a connecting piece, a pipe cavity for fluid to pass through is formed in the water distribution pipe, a first end and a second end are formed at the two ends of the water distribution pipe respectively, the first end is used for being connected with a water supply pipe, and the second end is used for being connected with a first water baffle. A connecting hole is formed in the first water baffle; the connecting hole is connected with the second end part, so that the first water baffle is connected with the water distribution pipe; the two ends of the connecting piece are connected with the first water baffle and the second water baffle correspondingly. The second water baffle is arranged opposite to the first water baffle through a plurality of connecting pieces; a water outlet cavity is formed between the first water baffle and the second water baffle and is communicated with the pipe cavity of the water distribution pipe through the connecting hole. The structure of the water distributor is specifically designed to optimize the water flow at the water distribution port, so that the stability of the thermocline is maintained, and the utilization rate of the chilled water storage device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water-cooling energy storage, in particular to a disc-shaped water distributor and a water-cooling energy storage device including the same. Background Art

[0002] At present, the main water-cooling energy storage devices adopt the natural stratification type water-cooling energy storage technology. In the natural stratification type cold water storage tank, the water temperature distribution is naturally stratified according to its density, so it is also called the temperature stratification type. The density of water is related to temperature. When the water temperature is higher than 4°C, the density decreases as the temperature increases. In the range of 0-4°C, the density increases as the temperature increases. Therefore, the cold storage temperature should not be lower than 4°C. Taking the cold storage inlet and outlet water temperatures of 4°C / 12°C as an example, the low-temperature water at 4°C accumulates at the lower part of the water-cooling energy storage tank due to its relatively large density, and the high-temperature return water at 12°C with a smaller density accumulates at the upper part of the water-cooling energy storage device. The area where the upper high-temperature water and the lower low-temperature water exchange heat and the temperature is between 5°C and 11°C is called the thermocline. The thermocline is related to the effective utilization rate of the water-cooling energy storage device. The larger the thermocline, the lower the utilization rate of the water-cooling energy storage device; the smaller the thermocline, the higher the effective utilization rate of the water-cooling energy storage device.

[0003] In the stratified water-cooling energy storage device, to reduce the thickness of the thermocline and keep it stable and prevent it from continuously growing, the key is to set a water distributor at the inlet and outlet of the water-cooling energy storage device to evenly introduce water into the water tank.

[0004] An important evaluation index of the water distributor is that the water flow introduced into the water-cooling energy storage device from the orifice of the water distributor should maintain a low-flow state and evenly diffuse, so that the water can be smoothly introduced into the tank by the gravity flow formed by the density difference in the vertical direction, and the water can be stratified in turn according to the density difference corresponding to different temperatures, forming and maintaining a stable thermocline.

[0005] At present, the commonly used water distributor plays a role in uniform flow by opening holes on the water distribution pipe. The opening direction of the holes on the water distributor generally forms a certain angle with the horizontal plane, and the water flow generally has a certain component in the vertical direction. Therefore, the inertial water flow in the vertical direction will interfere with the gravity flow formed by the density difference of water in the vertical direction, and obvious mixing of the water flow will occur, destroying the water temperature stratification phenomenon; secondly, the opening diameter of the water distributor is generally small (generally less than φ15mm), resulting in too fast outflow velocity, causing the thermocline to be impacted by the inertial water flow and destroying the stability of the thermocline. The too small opening diameter is also likely to cause the water distribution head to be blocked by foreign matters such as welding slag, affecting the water flow distribution; furthermore, after the cold storage tank is put into use, it does not have the condition for maintenance, and if the water distribution head is blocked, it cannot be replaced. Summary of the Utility Model

[0006] To overcome the deficiencies of the prior art, an object of the present utility model is to provide a disc-shaped water distributor and a water storage and cooling device including the same, which optimize the water flow at the water distribution ports through targeted design of the water distributor structure, thereby maintaining the stability of the thermocline and improving the utilization rate of the water storage and cooling device.

[0007] One of the objects of the present utility model is to provide a disc-shaped water distributor, which is realized by the following technical solutions:

[0008] A disc-shaped water distributor, characterized in that it includes a water distribution pipe, a first water baffle, a second water baffle and a connecting member;

[0009] A pipe cavity for fluid to pass through is formed inside the water distribution pipe, and a first end and a second end are respectively formed at both ends. The first end is used to connect with a water supply pipe, and the second end is used to connect with the first water baffle;

[0010] The first water baffle is provided with a connection hole; the connection hole is connected with the second end, so as to connect the first water baffle with the water distribution pipe; both ends of the connecting member are respectively connected with the first water baffle and the second water baffle; the second water baffle is oppositely arranged with the first water baffle through a plurality of the connecting members; an outlet cavity is formed between the first water baffle and the second water baffle, and the outlet cavity is communicated with the pipe cavity of the water distribution pipe through the connection hole.

[0011] In one of the objects of the present utility model, as an optional implementation manner, the second water baffle is vertically arranged with the water distribution pipe; both the first water baffle and the second water baffle are of disc-shaped structures, and the first water baffle and the second water baffle are arranged in parallel.

[0012] In one of the objects of the present utility model, as an optional implementation manner, both the first water baffle and the second water baffle are polygonal water baffles.

[0013] In one of the objects of the present utility model, as an optional implementation manner, the connecting member is a cylindrical connecting member, and the number of the connecting members is two or more.

[0014] In one of the objects of the present utility model, as an optional implementation manner, the connecting member is a solid cylinder, the number of the connecting members is 3, and the 3 connecting members are annularly arrayed between the first water baffle and the second water baffle.

[0015] In one of the objects of the present utility model, as an optional implementation manner, the connecting member has an elastic force, and a plurality of the connecting members with elastic force are annularly arrayed between the first water baffle and the second water baffle; the elastic force for the second water baffle to move away from or close to the first water baffle is provided by the connecting member with elastic force.

[0016] In one of the objectives of the present utility model, as an alternative implementation, a threaded component is provided between the first water baffle and the water distribution pipe. The threaded component includes a first threaded member and a second threaded member. The first threaded member is fixed to the inner wall of the connection hole, and an internal thread is formed inside the first threaded member. The second threaded member is fixed to the second end of the water distribution pipe. The second threaded member has an external thread. The first water baffle and the water distribution pipe are screwed together through the engagement of the internal thread and the external thread.

[0017] In one of the objectives of the present utility model, as an alternative implementation, the water distribution pipe, the first water baffle, the second water baffle and the connecting member are made of plastic or stainless steel.

[0018] A second objective of the present utility model is to provide a water thermal energy storage device, which is realized by adopting the following technical solution:

[0019] A water thermal energy storage device, characterized in that it includes a thermal energy storage tank body. A high-temperature water pipe and a low-temperature water pipe are arranged inside the thermal energy storage tank body. The high-temperature water pipe is arranged near the top of the thermal energy storage tank body. A plurality of water distributors as described in any one of the objectives of the present utility model are arranged on the high-temperature water pipe. The low-temperature water pipe is arranged near the bottom of the thermal energy storage tank body. A plurality of water distributors as described in any one of the objectives of the present utility model are arranged on the low-temperature water pipe.

[0020] In the second objective of the present utility model, as an alternative implementation, a support frame is arranged on the high-temperature water pipe. A pipeline is formed inside the support frame. The pipeline has a water inlet, and the water inlet is connected to the high-temperature water pipe. A plurality of water outlets are formed on the support frame, and the water outlets are connected to the first ends of the water distribution pipes. A plurality of the water distributors are arranged in a rectangular array on the support frame.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0022] For the disc-shaped water distributor of the present utility model, by connecting the first end of the water distribution pipe to the water supply pipe, the water flow enters the water outlet cavity between the first water baffle and the second water baffle after passing through the lumen of the water distribution pipe, increasing the outlet flow cross-sectional area, reducing the outlet flow velocity, and reducing the disturbance of the water flow at the inlet of the water supply pipe to the thermal energy storage water tank. The water flow in the water distribution pipe impacts the second water baffle at a very low flow velocity and then horizontally enters the mixing layer. By arranging the first water baffle and the second water baffle, the water flow diffuses in all directions through the two water baffles, achieving uniform water distribution in the 360° horizontal direction, reducing the velocity component of the water flow in the vertical horizontal plane direction, and reducing the disturbance between the mixing layer and the constant temperature layer to maintain the stability of the thermocline and the constant temperature layer.

[0023] The water storage and cooling device of the present utility model allows the water flow in the water distribution pipe to impact the second baffle plate at a very low flow rate, and then horizontally enter the mixing layer, where it converges with the fluid flowing out of the orifices of adjacent disc-shaped water distributors. By setting the disc-shaped water distributor with a water blocking structure, the velocity component of the water flow in the vertical and horizontal planes is reduced, and the disturbance between the mixing layer and the constant temperature layer is reduced to maintain the stability of the thermocline and the constant temperature layer. The thermocline gradually moves upward with the charging / discharging process until the charging / discharging is completed. During the charging / discharging period, according to the current water distribution principle, the water flow in the water storage and cooling device is a gravity flow formed by the density difference, which can maintain the stability of the thermocline and the constant temperature layer. A number of disc-shaped water distributors are arranged equidistantly in the plane to achieve uniform water distribution throughout the water storage tank. This avoids the defect that the commonly used water distributors at present cause disturbance to the constant temperature layer due to the fact that the water flow state in the water storage and cooling device is dominated by inertial flow, resulting in the gradual increase of the thermocline. Description of the Drawings

[0024] Figure 1 Stereogram of the disc-shaped water distributor of Embodiment 1;

[0025] Figure 2 Stereogram of the disc-shaped water distributor of Embodiment 1 from another angle;

[0026] Figure 3 Top view of the disc-shaped water distributor of Embodiment 1;

[0027] Figure 4 Front view of the disc-shaped water distributor of Embodiment 1;

[0028] Figure 5 Schematic diagram of the water flow direction of the disc-shaped water distributor of Embodiment 1 in the working state;

[0029] Figure 6 Elevation view of the water distribution system in the cold storage tank of the water storage and cooling device of Embodiment 2;

[0030] Figure 7 Plan layout of the water distributor of the water storage and cooling device of Embodiment 2.

[0031] In the figures: 10, water distribution pipe; 11, pipe cavity; 12, first end; 13, second end; 20, first baffle plate; 21, connection hole; 30, second baffle plate; 40, connecting piece; 50, threaded component; 60, cold storage tank body; 61, mixing layer; 62, constant temperature layer; 63, thermocline; 70, support frame. Detailed Implementation Modes

[0032] Next, in combination with the accompanying drawings and specific embodiments, the present utility model will be further described. It should be noted that, on the premise of non-conflict, the following-described embodiments or technical features can be arbitrarily combined to form new embodiments. Except as otherwise specifically stated, the materials and equipment used in this embodiment can be purchased from the market. The examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as a limitation to the present application.

[0033] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In the description of the present application, the meaning of "a plurality" is two or more, unless otherwise specifically and precisely defined.

[0034] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected", "communicated", "connected" should be understood in a broad sense. For example, it can be a fixed connection, or can be connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0035] The terms "first", "second", etc. in the description, claims and above-mentioned drawings of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0036] Embodiment 1:

[0037] Please refer to Figures 1-5 , this embodiment provides a disc-shaped water distributor, including a water distribution pipe 10, a first water baffle 20, a second water baffle 30 and a connecting member 40;

[0038] A pipe cavity 11 through which fluid can pass is formed inside the water distribution pipe 10. A first end portion 12 and a second end portion 13 are formed at both ends respectively. The first end portion 12 is used to connect with a water supply pipe, and the second end portion 13 is used to connect with the first water baffle 20;

[0039] A connection hole 21 is provided at the center of the first water baffle 20; the connection hole 21 is connected to the second end portion 13, thereby connecting the first water baffle 20 to the water distribution pipe 10;

[0040] Both ends of the connecting member 40 are respectively connected to the first water baffle 20 and the second water baffle 30; the second water baffle 30 is disposed opposite to the first water baffle 20 through a plurality of the connecting members 40; that is, the second water baffle 30 is disposed on the extension line of the pipe cavity 11; an outlet cavity is formed between the first water baffle 20 and the second water baffle 30, and the outlet cavity is communicated with the pipe cavity 11 of the water distribution pipe 10 through the connection hole 21.

[0041] During use, the first end portion 12 of the water distribution pipe 10 is connected to a water supply pipe. After the water flow passes through the pipe cavity 11 of the water distribution pipe 10, it enters the outlet cavity between the first water baffle 20 and the second water baffle 30, increasing the outlet flow cross-sectional area, reducing the outlet flow velocity, and reducing the disturbance of the water flow at the inlet of the water supply pipe to the cold storage water tank; the water flow in the water distribution pipe 10 impacts the second water baffle 30 at a very low flow velocity, and then horizontally enters the mixing layer 61. By providing the first water baffle 20 and the second water baffle 30, the water flow diffuses around through the two water baffles, achieving uniform water distribution in the 360° horizontal direction, reducing the velocity component of the water flow in the vertical horizontal plane direction, and reducing the disturbance between the mixing layer 61 and the constant temperature layer 62 to maintain the stability of the thermocline 63 and the constant temperature layer 62.

[0042] Specifically, the first water baffle 20 and the second water baffle 30 in this embodiment are both of a disc-shaped structure, and the second water baffle 30 is vertically arranged with the water distribution pipe 10; the first water baffle 20 and the second water baffle 30 are arranged in parallel. The connection hole 21 is opened at the center of the circle of the first water baffle 20, and the water flow vertically impacts the center of the second water baffle 30 after passing through the make-up water pipe and enters the outlet cavity, and uniformly diffuses around.

[0043] In other embodiments, the first water baffle 20 and the second water baffle 30 may also be polygonal water baffles, preferably regular polygons, such as a square or a regular hexagon, etc. The first water baffle 20 and the second water baffle 30 in the shape of a regular polygon are convenient for production and convenient for combined arrangement and use.

[0044] The connecting member 40 in this embodiment can be a solid cylindrical pipe or a hollow circular pipe. The number of connecting members 40 can be two or more. Preferably, the connecting member 40 is a solid cylinder, and the number of the connecting members 40 is 3. The 3 connecting members 40 are annularly arranged between the first water baffle 20 and the second water baffle 30, so as to improve the connection strength between the first water baffle 20 and the second water baffle 30, and reduce the blockage of the water flow by the connecting member 40 while ensuring the relative stability between the first water baffle 20 and the second water baffle 30.

[0045] In other embodiments, the connecting member 40 can also be implemented in the form of a spring. Specifically, the connecting member 40 has an elastic force, and several connecting members 40 with elastic force are annularly arranged between the first water baffle 20 and the second water baffle 30; the elastic force for the second water baffle 30 to move away from or close to the first water baffle 20 is provided by the connecting member 40 with elastic force. Setting the connecting member 40 in the form of a spring helps to improve the impact resistance of the second water baffle 30 and adapt to different water flow intensities.

[0046] Furthermore, a threaded component 50 is arranged between the first water baffle 20 and the water distribution pipe 10. The threaded component 50 includes a first threaded member and a second threaded member; the first threaded member is fixed to the inner wall of the connecting hole 21, and an internal thread is formed inside the first threaded member; the second threaded member is fixed to the second end portion 13 of the water distribution pipe 10, and the second threaded member has an external thread. The first water baffle 20 and the water distribution pipe 10 are screwed together through the engagement of the internal thread and the external thread. It is convenient to disassemble the water baffle, and the water distributor can be independently replaced when it is damaged or blocked, saving the maintenance cost.

[0047] The disc-shaped water distributor in this embodiment is made of plastic or stainless steel.

[0048] Embodiment 2:

[0049] Please refer to Figures 6-7 , on the basis of Embodiment 1, this embodiment provides a water storage and cooling device, which includes a cold storage tank body 60. A high-temperature water pipe and a low-temperature water pipe are respectively arranged at the top and bottom inside the cold storage tank body 60. A plurality of disc-shaped water distributors as described in Embodiment 1 are arranged on both the high-temperature water pipe and the low-temperature water pipe.

[0050] Specifically, a support frame 70 is provided on the high-temperature water pipe. A pipeline is formed inside the support frame 70. The pipeline has a water inlet, and the water inlet is connected to the high-temperature water pipe; a plurality of water outlets are formed on the support frame 70, and the water outlets are connected to the first end portion 12 of the water distribution pipe 10; a plurality of the disc-shaped water distributors are evenly distributed in a rectangular array on the support frame 70. One end of the first water baffle 20, which is also the second water baffle 30, of the disc-shaped water distributor on the high-temperature water pipe is arranged towards the top wall of the cold storage tank body 60, and the first end portion 12 of the water distribution pipe 10 of the disc-shaped water distributor on the high-temperature water pipe is arranged towards the inside of the cold storage tank body 60.

[0051] A support frame 70 is also provided on the low-temperature water pipe. The water inlet of the support frame 70 is connected to the low-temperature water pipe; the water outlet of the support frame 70 is connected to the first end portion 12 of the water distribution pipe 10; a plurality of the disc-shaped water distributors are evenly distributed in a rectangular array on the support frame 70. One end of the first water baffle 20, which is also the second water baffle 30, of the disc-shaped water distributor on the low-temperature water pipe is arranged towards the top wall of the cold storage tank body 60, and the first end portion 12 of the water distribution pipe 10 of the disc-shaped water distributor on the low-temperature water pipe is arranged towards the inside of the cold storage tank body 60.

[0052] Please refer to Figure 6 the elevation view of the water distribution system in the cold storage tank shown. Each layer is respectively a mixing layer 61, a constant temperature layer 62, and a thermocline layer 63. Taking the cold storage process as an example, the designed flow velocity of the water distribution pipe 10 is less than 0.3 m / s before the water reaches the inlet of the disc-shaped water distributor. The water flow in the water distribution pipe 10 impacts the second water baffle 30 at a very low flow velocity, and then horizontally enters the mixing layer 61, where it converges with the fluid flowing out of the orifices of adjacent disc-shaped water distributors. By setting the water distributor with a water baffle structure, the velocity component of the water flow in the vertical and horizontal planes is reduced, and the disturbance between the mixing layer 61 and the constant temperature layer 62 is reduced to maintain the stability of the thermocline layer 63 and the constant temperature layer 62.

[0053] The thermocline layer 63 gradually moves upward with the cold storage / discharge process until the cold storage / discharge is completed. During the cold storage / discharge period, according to the current water distribution principle, the water flow in the water storage and cooling device is a gravity flow formed by the density difference, which can maintain the stability of the thermocline layer 63 and the constant temperature layer 62; a plurality of disc-shaped water distributors are arranged at equal distances in the plane to achieve uniform water distribution in the entire cold storage water tank. This avoids the defect that the conventional water distributors commonly used cause disturbance to the constant temperature layer 62 due to the fact that the water flow state in the water storage and cooling device is dominated by inertial flow, resulting in the gradual increase of the thermocline layer 63. Although some components and embodiments of the present application have been illustrated and described, many modifications and changes (such as changes in the size, dimensions, structure, shape and proportion of each component, installation arrangement, material use, color, orientation, etc.) can be conceived by those skilled in the art without actually departing from the scope and spirit of the claims.

[0054] Finally, it should be noted that the above embodiments are only the preferred embodiments of the present utility model, and cannot be used to limit the scope of protection of the present utility model. Any non-substantial changes and substitutions made by those skilled in the art on the basis of the present utility model fall within the scope of protection required by the present utility model.

Claims

1. A disc-shaped water distributor, characterized in that: It includes a water distribution pipe, a first water retaining plate, a second water retaining plate and a connecting piece; The water distribution pipe has a lumen formed inside for fluid to pass through, and two ends thereof respectively form a first end and a second end, the first end being used to connect to the water supply pipe, and the second end being used to connect to the first water baffle; The first water baffle plate is provided with a connecting hole; the connecting hole is connected to the second end portion, thereby connecting the first water baffle plate to the water distribution pipe; the two ends of the connecting member are respectively connected to the first water baffle plate and the second water baffle plate; the second water baffle plate is arranged opposite to the first water baffle plate through a plurality of the connecting members; a water outlet cavity is formed between the first water baffle plate and the second water baffle plate, and the water outlet cavity is connected to the pipe cavity of the water distribution pipe through the connecting hole.

2. A disc-shaped water distributor according to claim 1, characterized in that: The second water baffle plate is vertically arranged with respect to the water distribution pipe; the first water baffle plate and the second water baffle plate are both disc-shaped structures, and the first water baffle plate and the second water baffle plate are arranged in parallel.

3. A disc-shaped water distributor according to claim 1, characterized in that: The first water baffle plate and the second water baffle plate are both polygonal water baffle plates.

4. A disc-shaped water distributor according to claim 1, characterized in that: The connecting piece is a cylindrical connecting piece, and the number of the connecting pieces is two or more.

5. A disc-shaped water distributor according to claim 4, characterized in that: The connecting member is a solid cylinder, the number of the connecting members is 3, and the 3 connecting members are arranged in a circular array between the first water baffle plate and the second water baffle plate.

6. A disc-shaped water distributor according to claim 1, characterized in that: The connecting member has elastic force, and a plurality of the connecting members with elastic force are arranged in a circular array between the first water baffle plate and the second water baffle plate; the connecting members with elastic force provide the second water baffle plate with elastic force to move away from or close to the first water baffle plate.

7. The disc-shaped water distributor according to claim 1, characterized in that: A threaded assembly is arranged between the first water baffle plate and the water distribution pipe, and the threaded assembly includes a first threaded member and a second threaded member; the first threaded member is fixed to the inner wall of the connecting hole, and an internal thread is formed on the inner side of the first threaded member; the second threaded member is fixed to the second end of the water distribution pipe, and the second threaded member has an external thread, and the first water baffle plate and the water distribution pipe are threadedly connected through the internal thread and the external thread engaging member.

8. The disc-shaped water distributor according to claim 1, characterized in that: The water distribution pipe, the first water baffle plate, the second water baffle plate and the connecting piece are made of plastic or stainless steel.

9. A water cooling device, characterized in that: It comprises a cold storage tank body, in which a high-temperature water pipe and a low-temperature water pipe are arranged. The high-temperature water pipe is arranged near the top of the cold storage tank body, and a plurality of disc-shaped water distributors as described in any one of claims 1 to 8 are arranged on the high-temperature water pipe; the low-temperature water pipe is arranged near the bottom of the cold storage tank body, and a plurality of disc-shaped water distributors as described in any one of claims 1 to 8 are arranged on the low-temperature water pipe.

10. A water cooling device according to claim 9, characterized in that: A support frame is provided on the high-temperature water pipe, and a pipeline is formed inside the support frame. The pipeline has a water inlet, and the water inlet is connected to the high-temperature water pipe; a plurality of water outlets are formed on the support frame, and the water outlets are connected to the first end of the disc-shaped water distributor; a plurality of the disc-shaped water distributors are arranged in a rectangular array on the support frame.

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