Energy storage and discharge water tank

By designing the overflow weir and pipe assembly structure of the energy storage and release water tank, the problems of poor cold and heat storage effect and low heat utilization rate in the existing technology are solved. The overall temperature uniform control in the water tank and the efficient storage and release of cold and heat are realized, thereby improving the economic benefits of energy storage equipment.

CN223910109UActive Publication Date: 2026-02-13BAODING SANJIANG HEATING & COOLING EQUIPMENT CO LTD
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Patent Information

Application Number
CN202520558514.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-27
Publication Date
2026-02-13
Estimated Expiration
2035-03-27

AI Technical Summary

Technical Problem

The medium in existing energy storage devices circulates from fixed inlet and outlet during operation, resulting in poor cold and heat storage effects and low heat utilization during energy release. It is impossible to achieve the set temperature throughout the water tank, thus failing to achieve the ideal energy storage and release effect.

Method used

An energy storage and release water tank was designed, which adopts the structure of an overflow weir, an inlet pipe group and an outlet pipe group. Through the "L"-shaped cross-section of the overflow weir and the cubic structure of the sealing plate, uniform heat exchange of the flowing water source in the water tank is achieved. Combined with a temperature tester and a water supply pipe interface, it is ensured that the water tank reaches the set temperature as a whole during the cold and heat storage process. Multiple water tanks are connected in parallel to realize the storage of cold and heat in the area.

Benefits of technology

This technology enables the water tank to be fully filled during the cold and heat storage process and completely drained during the heat release process, thereby improving heat utilization and energy storage efficiency, meeting the needs of heating and cooling systems, and saving electricity costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223910109U_ABST
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Abstract

The energy storage and discharge water tank comprises a tank body, an overflow weir is fixedly installed in the middle of one side of the inner wall of the tank body, and the two sides of the overflow weir are fixedly connected with the other two opposite side walls of the tank body; a gap is reserved between the top end of the overflow weir and the top surface of the box body; a water outlet pipe group and a water inlet pipe group are communicated in the box body; a water outlet pipe group is mounted on the overflow weir side; a water inlet pipe set is further installed on the opposite side of the water outlet pipe set. According to the energy storage and discharge water tank, various working conditions of cold storage / discharge and heat storage / discharge can be achieved, a flowing water source in the tank body can integrally reach the set temperature in the cold storage / discharge and heat storage / discharge processes, and the energy storage and discharge effects of full storage and complete discharge are achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heat storage and release, particularly relates to a energy storage and release water tank. BACKGROUND

[0002] The box is a device for providing energy storage and load adjustment services for heating and cooling systems, and because of the price difference between peak and valley power, the box can be used to store heat and cold during the valley power period and release heat and cold during the peak power period to improve economic efficiency. The medium of the existing energy storage device circulates from the fixed inlet and outlet during the working process, the heat storage and release effect is poor, and the energy storage process cannot achieve the whole water tank reaching the set temperature, so the required energy storage effect cannot be achieved. At the same time, the medium of the energy release is only circulated from the fixed inlet and outlet during energy storage, the heat utilization rate is poor, and the energy release effect cannot be achieved.

[0003] Therefore, it is urgent to design an energy storage and release water tank that improves heat utilization and can store and release completely. UTILITY MODEL CONTENT

[0004] The utility model aims at providing an energy storage and release water tank to solve the problems of the prior art, and can achieve complete storage in the heat storage and release process of the water tank and complete release in the heat release process of the water tank.

[0005] To achieve the above object, the utility model provides the following scheme: the utility model provides an energy storage and release water tank, which comprises:

[0006] A weir is fixedly installed in the middle of one side of the inner wall of the box, and the weir is fixedly connected with the other two opposite side walls of the box; a gap is reserved between the top end of the weir and the top surface of the box; the box is also connected with a water outlet pipe group and a water inlet pipe group;

[0007] The water outlet pipe group is installed on one side of the weir; and the water inlet pipe group is also installed on the opposite side of the water outlet pipe group.

[0008] The box comprises a sealing plate and a support framework; the sealing plate is formed by splicing and welding on both sides of the support framework; and the sealing plate is spliced into a cubic structure.

[0009] The cross section of the weir is in the shape of "L".

[0010] The water inlet pipe group comprises a water inlet main pipe and a first row pipe, the water inlet main pipe is communicated with the first row pipe, a row of water outlet holes are arranged on the side wall of the first row pipe at equal intervals, and the water inlet main pipe is fixedly installed on the bottom of the side wall of the box.

[0011] The water outlet pipe group comprises an upper water outlet pipe and a lower water outlet pipe, and the upper water outlet pipe and the lower water outlet pipe have the same structure as the water inlet pipe group; the upper water outlet pipe is installed in the overflow weir, and the lower water outlet pipe is installed below the overflow weir.

[0012] The box top end is also provided with an exhaust hole.

[0013] The box top is also fixedly provided with a temperature tester and a water replenishing pipe interface.

[0014] The utility model discloses the following technical effects: the energy storage and release water tank can realize the storage and release of cold, heat and various working conditions, and can make the flowing water source in the box reach the set temperature in the process of storage and release of cold, heat, realize the storage and release of energy effect. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiments, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0016] Figure 1 It is water tank structure plane schematic view;

[0017] Figure 2 It is water tank overall structure solid schematic view;

[0018] Figure 3 It is water tank horizontal section schematic view;

[0019] Wherein, 1, sealing plate;2, support framework;3, overflow weir;4, water inlet main pipe;5, first row pipe;6, water outlet hole;7, upper water outlet pipe;8, lower water outlet pipe;9, exhaust hole and water replenishing pipe interface. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only some embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0021] In order to make the above purpose, features and advantages of the utility model more obvious and easy to understand, the utility model will be further described in detail in combination with the drawings and specific embodiments.

[0022] The utility model provides a kind of energy storage and energy release water tank, comprising:

[0023] Box, overflow weir 3 is fixedly installed in box inner wall one side middle part, and the other two opposite side walls of overflow weir 3 two sides are fixedly connected with box;Overflow weir 3 top end and box top surface are reserved with gap;Box is also connected with water outlet pipe group and water inlet pipe group in it;

[0024] Overflow weir 3 side is equipped with water outlet pipe group;Water inlet pipe group is also installed on the opposite side of water outlet pipe group.

[0025] Box includes sealing plate 1 and support framework 2;Support framework 2 both sides are welded with the sealing plate 1 spliced into shape;Sealing plate 1 is spliced as cubic structure.

[0026] The cross-sectional shape of overflow weir 3 is "L" shape.

[0027] Water inlet pipe group includes water inlet main pipe 4 and first row pipe 5, and water inlet main pipe 4 is communicated with first row pipe 5, and a row of equidistantly arranged water outlet holes 6 are formed in the side wall of first row pipe 5;Water inlet main pipe 4 is fixedly installed on the bottom of the side wall of box.

[0028] Water outlet pipe group includes upper water outlet pipe 7 and lower water outlet pipe 8, and the structure of upper water outlet pipe 7 and lower water outlet pipe 8 is same with water inlet pipe group;Upper water outlet pipe 7 is installed in overflow weir 3, and lower water outlet pipe 8 is installed below overflow weir 3.

[0029] Box top end is also provided with air vent 9.

[0030] Box top is also fixedly installed with temperature tester and water replenishment pipe interface.

[0031] In an embodiment of the utility model, flowing water is always circulated in the energy storage and energy release water tank, and the energy storage and energy release water tank preferentially stores energy in the time period of low electricity and water consumption at night, and through the parallel connection of multiple energy storage and energy release water tanks, the cold and heat reserves in a region during the day can be realized, which is extremely practical.

[0032] In an embodiment of the utility model, hot water or cold water flows into water inlet main pipe 4 according to actual situation, and water inlet main pipe 4 is heat-exchanged with refrigeration and heating equipment according to actual seasonal regional situation.

[0033] On the contrary, upper water outlet pipe 7 and lower water outlet pipe 8 are respectively connected with refrigeration and heating equipment or heat-exchanged with plate heat exchanger during energy storage and energy release, and then energy is delivered to users.

[0034] There is always circulating water in the water tank, and the total amount of circulating water is constant, and only the water discharged through upper water outlet pipe 7 or lower water outlet pipe 8 enters refrigeration and heating equipment or plate heat exchanger for energy exchange, and then enters the water tank after heat exchange, to reciprocally circulate.

[0035] In one embodiment of the utility model, set up first row pipe 5 can realize water flow's entering average flow into box bottom whole plane, flowing water in whole water tank is even in heat exchange in heat exchange process, heat exchange speed is fast.

[0036] In one embodiment of the utility model, the height of the water tank is 4500mm, wherein the installation height of the water inlet main pipe 4 and the lower water outlet pipe 8 is 500mm from the ground of the water tank; the bottom end of the overflow weir 3 is 2700mm from the top surface of the water tank; the upper water outlet pipe is 1200mm from the bottom end of the overflow weir 3.

[0037] Further, the gap between the top end of the overflow weir 3 and the top of the water tank is 400mm.

[0038] In one embodiment of the utility model, a blowdown pipe is further arranged in the water tank, the blowdown pipe is arranged close to the lower water outlet pipe 8 at the bottom surface of the water tank; and the blowdown pipe is arranged in the overflow weir 3 and is higher than the bottom surface of the overflow weir 3 by 100mm.

[0039] In one embodiment of the utility model, the water tank can realize four working conditions of cold storage, heat storage, cold release and heat release.

[0040] In one embodiment of the utility model, in summer, when the water tank needs to realize the cold storage condition, the low-temperature water (ice water mixture of about 0 degrees Celsius) will be continuously input into the water tank from the refrigeration and heating equipment after refrigeration in the water inlet main pipe 4, and the temperature of the water source existing in the water tank will be higher than that of the low-temperature water in the water inlet main pipe 4; according to the second law of thermodynamics, the hot water will float on the top and the cold water will sink on the bottom in the water tank;

[0041] Heat can only be transferred from a high-temperature object to a low-temperature object in one direction, and cannot spontaneously transfer from a low-temperature object to a high-temperature object; but the water in the water tank is always in a flowing state, in order to ensure that the water tank can be filled with low-temperature water, at this time, the lower water outlet pipe 8 is closed, the upper water outlet pipe 7 is opened, the water at the top of the water tank overflows the overflow weir 3 and flows back to the refrigeration and heating equipment for refrigeration, and a refrigeration cycle is formed with the water inlet main pipe 4, until the temperature tester detects that the water source in the water tank reaches 0 degrees Celsius, the refrigeration cycle stops working, at this time, the water tank is filled with low-temperature water, and the cold storage condition is completed.

[0042] Further, the refrigeration and heating equipment is used for refrigeration at night, the electricity cost is low, and the cost is effectively saved.

[0043] In one embodiment of the utility model, when needing to release cold during the day, the water inlet main pipe 4 is closed with the valve of the refrigeration and heating equipment and is communicated with the water outlet end of the plate heat exchanger, at this time, the lower water outlet pipe 8 is opened and the upper water outlet pipe 7 is closed, the water source reaching the set temperature can be continuously discharged, and the low-temperature water stored in the water tank is completely discharged in the continuous circulation process; since the water at the bottom of the water tank is the water with the lowest temperature in the water tank, if the water discharged from the lower water outlet pipe 8 all does not reach the set temperature, the low-temperature water in the water tank is completely discharged, and the cold release condition is completed.

[0044] In one embodiment of the utility model, when needing to achieve the heat storage condition of the water tank in winter, the high-temperature water (water with a temperature of about 50 degrees Celsius) is continuously input into the water tank from the refrigeration and heating equipment in the water inlet main pipe 4, and the temperature of the water source originally existing in the water tank is lower than that of the high-temperature water in the water inlet main pipe 4; in order to ensure that the water tank can be filled with high-temperature water, at this time, the lower water outlet pipe 8 is opened, and the upper water outlet pipe 7 is closed, so that the water at the bottom of the water tank is returned to the refrigeration and heating equipment for heating and forms a heating cycle with the water inlet main pipe 4, until the temperature tester detects that the water source in the water tank all reaches 50 degrees Celsius, the heating cycle stops working, at this time, the water tank is filled with high-temperature water, and the heat storage condition is completed.

[0045] In one embodiment of the utility model, when needing to release heat during the day, the water inlet main pipe 4 is closed with the valve of the refrigeration and heating equipment and is communicated with the water outlet end of the plate heat exchanger, at this time, the upper water outlet pipe 7 is opened and the lower water outlet pipe 8 is closed, the water source reaching the set temperature can be continuously discharged, and the high-temperature water stored in the water tank is completely discharged in the continuous circulation process; since the water at the top of the water tank is the water with the highest temperature in the water tank, if the water discharged from the upper water outlet pipe 7 all does not reach the set temperature, the high-temperature water in the water tank is completely discharged, and the heat release condition is completed.

[0046] In one embodiment of the utility model, the refrigeration and heating equipment is a representative of an equipment capable of achieving cold storage and heat storage, and further includes, but is not limited to, a screw / centrifugal cold water / heat pump unit, a gas boiler, an electric boiler and an air source heat pump.

[0047] In one embodiment of the utility model, the cold storage and heat storage temperature is only a representative of a temperature value, and in actual application, can be higher or lower than the temperature value in the embodiment.

[0048] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0049] The above-described embodiments are merely preferred modes of the present application, and are not intended to limit the scope of the present application. Various modifications and improvements to the technical solutions of the present application made by those of ordinary skill in the art without departing from the design spirit of the present application shall fall within the protection scope of the present application as defined by the claims.

Claims

1. An energy storage and release water tank, characterized in that, include: The box body has an overflow weir (3) fixedly installed in the middle of one side of the inner wall of the box body. The two sides of the overflow weir (3) are fixedly connected to the other two opposite side walls of the box body. A gap is reserved between the top of the overflow weir (3) and the top surface of the box body. The box body is also connected to an outlet pipe group and an inlet pipe group. The overflow weir (3) is equipped with the outlet pipe assembly; the opposite side of the outlet pipe assembly is also equipped with an inlet pipe assembly.

2. The energy storage and release water tank according to claim 1, characterized in that: The enclosure includes a sealing plate (1) and a supporting frame (2); the supporting frame (2) has the sealing plate (1) welded on both sides; the sealing plate (1) is assembled into a cubic structure.

3. The energy storage and release water tank according to claim 1, characterized in that: The cross-sectional shape of the overflow weir (3) is "L".

4. The energy storage and release water tank according to claim 1, characterized in that: The water inlet pipe assembly includes a main water inlet pipe (4) and a first row of pipes (5). The main water inlet pipe (4) is connected to the first row of pipes (5). A row of equally spaced water outlet holes (6) is opened on the side wall of the first row of pipes (5). The main water inlet pipe (4) is fixedly installed at the bottom of the side wall of the box.

5. The energy storage and release water tank according to claim 4, characterized in that: The water outlet pipe assembly includes an upper water outlet pipe (7) and a lower water outlet pipe (8), and the upper water outlet pipe (7) and the lower water outlet pipe (8) have the same structure as the water inlet pipe assembly; the upper water outlet pipe (7) is installed inside the overflow weir (3), and the lower water outlet pipe (8) is installed below the overflow weir (3).

6. The energy storage and release water tank according to claim 1, characterized in that: The top of the box is also provided with an exhaust hole (9).

7. The energy storage and release water tank according to claim 1, characterized in that: A temperature meter and a water supply pipe interface are also fixedly installed on the top of the enclosure.