Quick-installation type secondary voltage-stabilizing and current-equalizing grid integrated water distributor

Abstract

The present invention relates to the technical field of temperature natural stratification water energy storage in air conditioning engineering, and provides a quick-installation type two-stage voltage stabilizing and flow equalizing grille integrated water distributor, which includes a box body and a rectangular main pipe penetrating through the box body. Both ends of the rectangular main pipe are respectively provided with a main pipe water inlet and a main pipe water outlet, and both the main pipe water inlet and the main pipe water outlet are circular. It also includes four rectangular branch pipes connected to the rectangular main pipe in an H-shaped distribution. A plurality of circular branch pipe water outlets are respectively arranged on both side walls of the rectangular branch pipes, forming the first-stage voltage stabilizing and flow equalizing grille of the water distributor. A manual regulating valve is arranged at the connection of the rectangular main pipe and each rectangular branch pipe, and the manual regulating valve adjusts the flow balance of water in each rectangular branch pipe. It further includes a second-stage voltage stabilizing and flow equalizing grille installed on the upper layer of the box body, and a plurality of circular grille water outlets are distributed on the surface of the second-stage voltage stabilizing and flow equalizing grille. The two-stage voltage stabilizing and flow equalizing functions are realized, effectively improving the water distribution uniformity of the water distributor.

Description

Technical Field

[0001] The present invention relates to the technical field of water energy storage in the temperature natural stratification technology of air conditioning engineering, and particularly to a quick-installation two-stage voltage stabilizing and flow equalizing grid integrated water distributor for a water energy storage system. Background Art

[0002] Water-cooling / heating technology utilizes the peak-valley electricity price difference. During the low-valley electricity price period, the cooling / heating capacity is stored in water using "sensible heat", and the stored low-temperature chilled water / high-temperature hot water is used to provide air conditioning cooling / heating during the peak electricity price period of the day. When the air conditioning usage time is synchronized with the non-air conditioning usage time and the peak and valley of the power grid, the air conditioning electricity consumption during the peak time of the power grid can be transferred to the low-valley time of the power grid. On the one hand, it can improve the night efficiency of the power grid and power plants, thus achieving an energy-saving effect. On the other hand, it can achieve the purpose of saving electricity bills for users. Currently, it is a mature, effective, and best economic performance ratio way of storing cooling / heating.

[0003] Temperature natural stratification is the stratification of water at different temperatures. The temperature stratification type water-cooling / heating technology utilizes the physical property that water has different densities at different temperatures, and relies on the density difference to keep the high-temperature water and low-temperature water stratified, reducing the decrease in the cooling / heating capacity caused by the mixing of high-temperature water and low-temperature water.

[0004] The density of low-temperature chilled water is the largest at 4°C, and the density gradually decreases as the water temperature rises. Utilizing this physical property of water, the water with a lower temperature stays at the lower part of the container, and the water with a higher temperature is stored at the upper part of the container. In a well-designed temperature stratification type water-cooling / heating container, a heat and mass exchange layer, called the thermocline, is formed between the upper high-temperature water area and the lower low-temperature water area due to its heat conduction. Minimizing the volume of the thermocline with the smallest possible thickness is the key technology to improve the cooling / heating capacity under the same volume.

[0005] In order to make the water flow smoothly and evenly across the entire cross-section in the vertical direction of the water storage container in a gravity flow or piston flow and be smoothly introduced into or drawn out of the container, and to form and maintain an effective and as thin as possible thermocline between the upper warm water area and the lower cold water area, the key is to set water distributors at the upper and lower parts of the water storage container to ensure that the water flow meets the Reynolds number Re and the Froude number Fr is minimized when entering the water storage container, so that the water flow is evenly distributed and enters the cooling / heating container with the least disturbance. The design and construction of the water distributor are the key technologies for natural temperature stratification type water-cooling / heating, which is usually referred to as the water distribution technology for water-cooling storage.

[0006] The water distribution technology is also known as the voltage stabilizing and flow equalizing technology. Existing voltage stabilizing flow equalizers generally make water flow into the cold storage container evenly by installing one-way valves or some buffer mechanisms with buffer functions. Although the current voltage stabilizing flow equalizers reduce the impact force of water flow, the water flow distribution is uneven and there will still be a certain degree of disturbance, which increases the thickness of the thermocline and reduces the cold storage / heat quantity under the same volume. Summary of the Invention

[0007] The purpose of the present invention is to address the above problems existing in the existing cold storage / heat technology, and provide a quick-installation type two-stage voltage stabilizing and flow equalizing grille integrated water distributor. Through the two-stage voltage stabilizing and flow equalizing grille, this water distributor can maximize the uniform and stable water flow during the cold storage / heat storage and cold release / heat release processes of the cold storage / heat container, and solve the problems of uneven water flow distribution in the existing cold storage / heat system, increasing the thermocline and thus reducing the cold storage / heat quantity.

[0008] This water distributor adopts a quick-installation and modular method, and can solve the construction difficulties of separately installing the water distributor and the "split voltage stabilizing and flow equalizing grille" applied in current projects. At the same time, it maximizes the effective cold storage / heat storage volume, can be better applied in projects, and improves the energy-saving efficiency.

[0009] The purpose of the present invention can be achieved by the following technical solutions: Provide a quick-installation type two-stage voltage stabilizing and flow equalizing grille integrated water distributor. The water distributor includes a box body and a rectangular main pipe passing through the box body. Both ends of the rectangular main pipe are respectively provided with a main pipe water inlet and a main pipe water outlet, and both the main pipe water inlet and the main pipe water outlet are circular.

[0010] Inside the box body, there are four rectangular branch pipes distributed in an H shape and connected to the rectangular main pipe. Multiple circular branch pipe water outlets are respectively arranged on both side walls of the rectangular branch pipes, constituting the first-stage voltage stabilizing and flow equalizing grille of the water distributor. A manual regulating valve is arranged at the connection of the rectangular main pipe and each rectangular branch pipe, and the manual regulating valve adjusts the flow balance of water in each rectangular branch pipe.

[0011] The water distributor includes a second-stage voltage stabilizing and flow equalizing grille installed on the upper layer of the box body to guide the water flow to flow evenly vertically upward. Multiple circular grille water outlets are distributed on the surface of the second-stage voltage stabilizing and flow equalizing grille.

[0012] Among them, the water outlet at one end of the rectangular main pipe of the water distributor is connected to the water inlet of the rectangular main pipe of another water distributor through a connecting pipe. Multiple such water distributors are connected in series, and the water distributors are distributed at the bottom or top of the cold storage and hot water containers.

[0013] Among them, the branch water outlets on the side wall of the rectangular branch pipe form the first-stage horizontal pressure-stabilizing and flow-uniforming grille, the second-stage pressure-stabilizing and flow-uniforming grille with grille water outlets is arranged on the upper surface of the box body, and the first-stage pressure-stabilizing and flow-uniforming grille on the side wall of the rectangular branch pipe and the second-stage pressure-stabilizing and flow-uniforming grille on the upper surface of the box body form a water distributor with an integrated two-stage pressure-stabilizing and flow-uniforming grille.

[0014] The quick-install two-stage pressure-stabilizing and flow-uniforming grille integrated water distributor uses cold and heat source equipment to manufacture low-temperature / high-temperature water to flow into the cold storage / heat storage container to store cold / heat during low valley electricity price time. When the low / high-temperature water enters through the water inlet and reaches the main pipe, the cross-sectional area of the jet water flow increases, playing a role in pressure stabilization and flow uniformity, and reducing the disturbance of the vertical water flow in the cold storage / heat storage. A manual regulating valve is installed between the main pipe and the branch pipe respectively. By adjusting the angle of the valve plate of the manual regulating valve, the water flow rate of each rectangular branch pipe of the multiple serially arranged water distributors in the system is adjusted to achieve flow balance. When the water flow jet passes through the branch water outlet, it enters the space of the cuboid surrounded by the water distributor baffle, which is equivalent to entering the pressure-stabilizing box of the second stage. Through design determination, the aperture size of the branch water outlet is optimized to make the water flow more stable when passing through different water outlets. When the water flow reaches the grille above the water distributor, the grille restricts the flow of the low-temperature water. Through design, the hole pitch size of the water outlet on the grille surface is optimized, so that the water flow can obtain a stable flow velocity at different positions when passing through the grille, enter the cold storage water tank. Through the present invention, the water flow entering the cold storage water tank can flow more stably, reduce the disturbance with the high-temperature water in the water tank, reduce the thickness of the thermocline, and increase the cold storage / heat storage of the cold storage / heat storage container with the same volume.

[0015] When the water flow of the water distributor passes through the branch water outlet, the cross-sectional area increases, playing the role of the first-stage pressure equalization and flow stabilization of the water flow.

[0016] When the water flow of the water distributor passes through the grille water outlet, the cross-sectional area increases, further playing the role of the second-stage pressure equalization and flow stabilization.

[0017] This water distributor is constructed in a quick-install modular manner. The main pipe water outlet of the water distributor can be connected to the main pipe water inlet of another water distributor and connected in series in the cold storage water tank, greatly reducing the construction period.

[0018] The connection method of this water distributor eliminates the disturbance of the upper space pipe network of the traditional water distributor to the water in the cold storage / heat storage container.

[0019] The overall height of this water distributor is 150 mm, maximizing the cold storage / heat storage volume.

[0020] This water distributor has a simple structure and ingenious design. The "integration of the voltage-stabilizing and flow-equalizing grille" design greatly reduces the construction difficulty of installing the "voltage-stabilizing and flow-equalizing grille" separately. The "quick-installation" connection method between water distributors minimizes the construction period and labor costs, thus reducing the overall construction cost and can be widely applied in construction projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art.

[0022] Figure 1 It is a schematic diagram of the overall structure of the quick-installation type two-stage voltage-stabilizing and flow-equalizing grille integrated water distributor of the present invention;

[0023] Figure 2 It is a schematic diagram of the assembly relationship between the box body, the main pipe, and the H-shaped rectangular branch pipes with the first-stage voltage-stabilizing and flow-equalizing grille of the quick-installation type two-stage voltage-stabilizing and flow-equalizing grille integrated water distributor of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the voltage-stabilizing and flow-equalizing grille on the upper surface of the box body of the quick-installation type two-stage voltage-stabilizing and flow-equalizing grille integrated water distributor of the present invention.

[0025] Reference numerals:

[0026] 1: Main pipe water inlet; 2: Rectangular main pipe; 3: Main pipe water outlet; 4: Manual regulating valve; 5: Rectangular branch pipe; 6: Branch pipe water outlet; 7: Box body; 8: Second-stage voltage-stabilizing and flow-equalizing grille; 9: Grille water outlet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following will further describe in detail the embodiments of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0028] As Figures 1 to 3 shown, the embodiment of the present invention provides a quick-installation type two-stage voltage-stabilizing and flow-equalizing grille integrated water distributor. The water distributor includes a box body 7 and a rectangular main pipe 2 passing through the box body 7. The two ends of the rectangular main pipe 2 are respectively provided with a main pipe water inlet 1 and a main pipe water outlet 3, and both the main pipe water inlet 1 and the main pipe water outlet 3 are circular;

[0029] The interior of the box body 1 includes four rectangular branch pipes 5 that are distributed and connected to the rectangular main pipe 2 in an H shape. A plurality of circular branch pipe water outlets 6 are respectively arranged on the two side walls of the rectangular branch pipe 5, constituting the first-stage voltage-stabilizing and flow-equalizing grille of the water distributor. A manual regulating valve 4 is arranged at the connection of the rectangular main pipe 2 and each rectangular branch pipe 5, and the manual regulating valve 4 adjusts the flow balance of the water in each rectangular branch pipe 5;

[0030] The water distributor includes a second-stage pressure-stabilizing and flow-equalizing grille 8 installed on the upper layer of the box body 7, which is used to guide the water flow to flow vertically upward evenly. A plurality of circular grille water outlets 9 are distributed on the surface of the second-stage pressure-stabilizing and flow-equalizing grille 8.

[0031] For the quick-installation two-stage pressure-stabilizing and flow-equalizing grille integrated water distributor according to the embodiment of the present invention, by arranging a rectangular main pipe 2 penetrating through the box body 7, four rectangular branch pipes 5 are distributed with the rectangular main pipe 2 in an H shape. There are a plurality of branch pipe water outlets 6 on both sides of the rectangular branch pipe 5, which reduces the impact force of the water flow and constitutes the first-stage pressure-stabilizing and flow-equalizing grille of the water distributor. A manual regulating valve 4 is installed at the connection between the rectangular main pipe 2 and each rectangular branch pipe 5 to control the flow balance of the water in each rectangular branch pipe 5; the second-stage pressure-stabilizing and flow-equalizing grille 8 on the upper layer of the box body 7 is distributed with a plurality of circular grille water outlets 9, which is used to restrict the vertical upward flow of the water flow and realize the two-stage pressure-stabilizing and flow-equalizing function, effectively improving the water distribution uniformity of the quick-installation two-stage pressure-stabilizing and flow-equalizing grille integrated water distributor, with a simple structure and convenient installation.

[0032] The embodiment of the present invention provides a quick-installation two-stage pressure-stabilizing and flow-equalizing grille integrated water distributor. Through the two-stage pressure-stabilizing and flow-equalizing grille, the water flow can be made uniform and stable to the greatest extent, and the water flow slowly enters the cold storage and hot water containers, solving the problem that the water distribution of the water distributor in the existing cold storage and heat systems is uneven, increasing the thermocline layer and thus reducing the cold storage and heat quantity. This water distributor adopts a quick-installation and modular method, and can solve the construction difficulties of installing the "water equalizing grille" applied in current projects. At the same time, it maximizes the effective cold storage and heat volume, can be better applied in projects, and improves the energy-saving efficiency.

[0033] In an embodiment of the present invention, the main pipe water outlet 3 at one end of the rectangular main pipe 2 of the water distributor is simply and quickly connected to the main pipe water inlet 1 of the rectangular main pipe 2 of another water distributor through a connecting pipe. A plurality of water distributors are quickly connected in series, and the rectangular box-type water distributors are distributed at the bottom or top of the cold storage and hot water tanks.

[0034] In an embodiment of the present invention, the branch pipe water outlets 6 on the side wall of the rectangular branch pipe 5 constitute the first-stage horizontal pressure-stabilizing and flow-equalizing grille, and the second-stage pressure-stabilizing and flow-equalizing grille with grille water outlets 9 is arranged on the upper surface of the box body 7. The first-stage pressure-stabilizing and flow-equalizing grille on the side wall of the rectangular branch pipe 5 and the second-stage pressure-stabilizing and flow-equalizing grille 8 on the upper surface of the box body 7 constitute a two-stage pressure-stabilizing and flow-equalizing grille integrated water distributor.

[0035] In an embodiment of the present invention, a manual valve plate 4 is arranged at the connection between the main pipe 2 and the branch pipe 5, which is used to adjust the water flow distribution of each water distributor in the equipment.

[0036] The function of the quick-installation grid integrated water distributor is to use cold and heat source equipment to produce low-temperature and high-temperature water during off-peak electricity price periods and flow it into cold storage and hot water containers to store cold and heat. When low-temperature water enters the main pipe water inlet 1 and reaches the rectangular main pipe 2, the cross-sectional area of the jet water flow increases, playing a role in equalizing flow and stabilizing pressure, and reducing the disturbance of the inlet water flow. The low-temperature water reaches the rectangular branch pipe 5 through the manual regulating valve 4. When the water flow jet passes through the branch pipe water outlet 6, it enters the space of the water distributor box body 7, which is equivalent to entering a secondary pressure equalizing and flow stabilizing box. Through design determination, the aperture size of the branch pipe water outlet 6 is optimized so that the water flow can obtain more stable flow when passing through different branch pipe water outlets 6. When the water flow reaches the second-stage pressure stabilizing and flow equalizing grid 8 above the water distributor, the grid water outlet 9 of the second-stage pressure stabilizing and flow equalizing grid 8 restricts the flow of low-temperature water. Through design, the pitch size of the grid water outlet 9 is optimized so that the water flow can obtain a stable flow velocity at different positions when passing through the grid and enter the cold storage water container. Through the present invention, the water flow entering the cold storage and hot water containers can flow more stably, reducing the disturbance with the high-temperature water in the water tank, reducing the thickness of the thermocline layer, and increasing the cold and heat storage of the system.

[0037] In the quick-installation two-stage pressure stabilizing and flow equalizing grid integrated water distributor according to the embodiment of the present invention, by designing different aperture sizes of the branch pipe water outlet 6 with equal pitch, the low-temperature water evenly flows out of the rectangular branch pipe 5.

[0038] In the quick-installation two-stage pressure stabilizing and flow equalizing grid integrated water distributor according to the embodiment of the present invention, by designing different pitch sizes of the grid water outlet 9 with equal aperture, the water flow further evenly flows out of the water distributor and enters the cold storage water tank.

[0039] The quick-installation two-stage pressure stabilizing and flow equalizing grid integrated water distributor according to the embodiment of the present invention is built in a quick-installation modular manner, and the main pipe water outlet 3 can be connected to the main pipe water inlet 1 of another water distributor and connected in series in the cold storage water tank.

[0040] The above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that various combinations, modifications, or equivalent replacements of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and should all be covered within the scope of the claims of the present invention.

Claims

1. A quick-installation type two-stage voltage-stabilizing and current-sharing grid integrated water distributor, characterized in that, The water distributor includes a box body and a rectangular main pipe passing through the box body. Both ends of the rectangular main pipe are respectively provided with a main pipe water inlet and a main pipe water outlet, and both the main pipe water inlet and the main pipe water outlet are circular; The interior of the box body includes four rectangular branch pipes that are distributed and connected to the rectangular main pipe in an H shape. Multiple circular branch pipe water outlets are respectively arranged on both side walls of the rectangular branch pipes, forming the first-stage pressure stabilizing and flow equalizing grid of the water distributor. A manual regulating valve is arranged at the connection between the rectangular main pipe and each rectangular branch pipe, and the manual regulating valve regulates the flow balance of water in each rectangular branch pipe; The water distributor includes a second-stage pressure stabilizing and flow equalizing grid installed on the upper layer of the box body to guide the water flow to flow evenly vertically upward. Multiple circular grid water outlets are distributed on the surface of the second-stage pressure stabilizing and flow equalizing grid; The main pipe water outlet at one end of the rectangular main pipe of the water distributor is connected to the main pipe water inlet of the rectangular main pipe of another water distributor through a connecting pipe. Multiple water distributors are connected in series. The water distributors are distributed at the bottom or top of the cold and hot water storage containers; By designing different pore sizes of the branch pipe water outlets with equal pore distances, the low-temperature water can flow out of the rectangular branch pipes evenly.

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