CN111059956A - Water energy storage water distribution device, water energy storage equipment and water energy storage control method thereof - Google Patents

Water energy storage water distribution device, water energy storage equipment and water energy storage control method thereof Download PDF

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Publication number
CN111059956A
CN111059956A CN201911345750.1A CN201911345750A CN111059956A CN 111059956 A CN111059956 A CN 111059956A CN 201911345750 A CN201911345750 A CN 201911345750A CN 111059956 A CN111059956 A CN 111059956A
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China
Prior art keywords
water
energy storage
water distribution
tank
pipe
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CN201911345750.1A
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Chinese (zh)
Inventor
谢辉优
蒋辉华
梁国挥
潘超
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Shenzhen Das Intellitech Co Ltd
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Shenzhen Das Intellitech Co Ltd
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Priority to CN201911345750.1A priority Critical patent/CN111059956A/en
Publication of CN111059956A publication Critical patent/CN111059956A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F25/00—Component parts of trickle coolers
    • F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D2020/0004—Particular heat storage apparatus
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

The invention discloses a water energy storage and distribution device, water energy storage equipment and a water energy storage control method thereof, wherein the water energy storage and distribution device comprises a water distribution pipe, a water distribution deceleration tank, a flow velocity control plate and a flow deflector, wherein the water distribution deceleration tank is hung below a port of the water distribution pipe and faces the port from an open side; the flow velocity control plate can slide back and forth along the axial direction of the end part of the water distribution pipe; an annular water through hole for water to enter and exit the water distribution decelerating groove is formed between the periphery of the flow velocity control plate and the open side of the water distribution decelerating groove. The water energy storage and distribution device is used in the energy storage water tank, realizes control of water flow velocity, avoids the problem of turbulent flow inside the energy storage water tank caused by uncontrollable flow velocity, can effectively reduce the water flow velocity of a pipeline entering or flowing out of the energy storage water tank, reduces the inclined temperature layer height of the energy storage water tank, and improves energy storage efficiency.

Description

Water energy storage water distribution device, water energy storage equipment and water energy storage control method thereof
Technical Field
The invention relates to the technical field of water energy storage, in particular to a water energy storage and distribution device, water energy storage equipment and a water energy storage control method thereof.
Background
In the existing water energy storage technical field, the water distribution technology is taken as the key for ensuring the energy efficiency of storage and release, and the common water distribution piping forms in the water energy storage system adopted by energy storage manufacturers in the existing market are mainly as follows: octagonal water distributors, radial disk water distributors and linear water distributors. According to the specific water distribution form, each family develops a product with independent intellectual property rights according to own technology, most of the water distribution forms a line water distribution form by adopting the open pores of the water distribution pipeline, and the other forms a point water distribution plate. Although many energy storage cases are implemented in the domestic market, the success or failure of the project is closely related to manufacturers and personnel who individually master the technology and has certain uncontrollable conditions, which causes uneven conditions, the key point is that the flow rate control is out of control when water flows into or out of an energy storage water tank (tank), the motion of an energy storage and release piston of the cold storage water tank (tank) is easily disturbed, particularly, the key control parameters Froude number (Fr) and Reynolds number (Re) related to water distribution are difficult to control, and if the control is not good in energy storage and release, a larger temperature gradient layer is caused to reduce the available cold and heat quantity, so that the cold storage and release efficiency is reduced, and the expected effect cannot be achieved.
Disclosure of Invention
The invention aims to provide a water energy storage and distribution device for improving energy storage efficiency, water energy storage equipment with the water energy storage and distribution device and a water energy storage control method of the water energy storage equipment.
The technical scheme adopted by the invention for solving the technical problems is as follows: the water distribution device comprises a water distribution pipe, a water distribution decelerating groove, a flow velocity control plate and a flow deflector, wherein the water distribution decelerating groove is hung below a port of the water distribution pipe and faces the port from an open side;
the flow velocity control plate can slide back and forth along the axial direction of the end part of the water distribution pipe; an annular water through hole for water to enter and exit the water distribution decelerating groove is formed between the periphery of the flow velocity control plate and the open side of the water distribution decelerating groove.
Preferably, the end of the water distribution pipe is provided with a limiting piece which is matched with the flow velocity control plate and limits the rotation of the flow velocity control plate.
Preferably, the limiting part is a guide rail which protrudes from the end of the water distribution pipe and extends along the axial direction of the water distribution pipe, and a guide groove matched with the guide rail is arranged on the periphery of the flow velocity control plate; the flow rate control plate can slide back and forth along the guide rail.
Preferably, the limiting part is a guide groove which is arranged at the end part of the water distribution pipe and extends along the axial direction of the water distribution pipe, and the periphery of the flow velocity control plate is provided with a convex guide rail matched with the guide groove; the flow rate control plate can slide back and forth along the guide groove.
Preferably, the water distribution decelerating tank is a hemispherical body or a square body.
Preferably, the open side of the water distribution decelerating tank is circular, oval or polygonal.
The invention also provides water energy storage equipment, which comprises an energy storage water tank, a first water distribution pipe arranged at the upper part in the energy storage water tank, a second water distribution pipe arranged at the lower part in the energy storage water tank, a plurality of first water distribution devices connected to the first water distribution pipe at intervals, and a plurality of second water distribution devices connected to the second water distribution pipe at intervals; the first water distribution device and the second water distribution device are both the water energy storage and distribution device.
Preferably, the water energy storage device further comprises a plurality of temperature sensors which are arranged in the energy storage water tank at intervals from top to bottom along the height direction of the energy storage water tank;
wherein, a plurality of temperature sensors that are located upper portion and lower part are all inequally spaced and arrange in the energy storage water pitcher.
Preferably, the water energy storage equipment further comprises a central vertical pipe arranged in the energy storage water tank and connected between the first water dividing pipe and the second water dividing pipe, and a first water inlet and outlet pipeline and a second water inlet and outlet pipeline which are respectively connected with the central vertical pipe and extend out of the energy storage water tank; a partition plate is arranged in the central vertical pipe and is positioned between the first water inlet and outlet pipeline and the second water inlet and outlet pipeline to isolate the first water inlet and outlet pipeline from the second water inlet and outlet pipeline;
the first water inlet and outlet pipeline is communicated with the first water distribution pipe and the first water distribution device through the central vertical pipe, and the second water inlet and outlet pipeline is communicated with the second water distribution pipe and the second water distribution device through the central vertical pipe.
The invention also provides a water energy storage control method of the water energy storage equipment, which comprises energy storage and energy release;
the energy storage comprises cold accumulation; when cold accumulation is carried out, low-temperature water sequentially passes through the second water inlet and outlet pipeline, the central vertical pipe and the second water distribution pipe, enters the second water distribution device, passes through the annular water through hole of the second water distribution device and then enters the energy storage water tank along the flow deflector; when the low-temperature water passes through the annular water through opening, the flow speed control plate slides and rises along the end part of the water distribution pipe axially under the action of water flow, the water containing space of the water distribution speed reduction tank is enlarged, and the flow speed of the low-temperature water is reduced to be within a control range;
high-temperature water at the upper part in the energy storage water tank enters the first water distribution device, sequentially passes through the first water distribution pipe and the central vertical pipe, enters the first water inlet and outlet pipeline and is output out of the energy storage water tank;
in the cold accumulation process, a temperature sensor in the energy storage water tank detects the temperature in the energy storage water tank and obtains the thickness of the thermocline; if the thickness of the thermocline exceeds the preset thickness, slowing down the flow rate of low-temperature water entering the energy storage water tank and the flow rate of high-temperature water output by the energy storage water tank;
the discharging comprises discharging; when the water is cooled, the low-temperature water in the energy storage water tank enters the second water distribution device and flows out of the energy storage water tank through the second water distribution pipe, the central vertical pipe and the second water inlet and outlet pipeline in sequence;
in the cooling process, the thickness of the thermocline is detected by a temperature sensor at the upper part in the energy storage water tank; and when the thickness of the thermocline exceeds the preset thickness, the low-temperature water flow entering the second water distribution device is reduced, and the high-temperature water flow flowing out of the first water distribution device at the upper part in the energy storage water tank is reduced.
The water energy storage and distribution device is used in the energy storage water tank, realizes control of water flow velocity, avoids the problem of turbulent flow inside the energy storage water tank caused by uncontrollable flow velocity, can effectively reduce the water flow velocity of a pipeline entering or flowing out of the energy storage water tank, reduces the inclined temperature layer height of the energy storage water tank, and improves energy storage efficiency.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a schematic structural diagram of a water energy storage and distribution device according to an embodiment of the invention;
fig. 2 is a schematic structural diagram of a water energy storage apparatus according to an embodiment of the present invention.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the water energy storage and distribution apparatus according to an embodiment of the present invention includes a water distribution pipe 10, a water distribution deceleration tank 20, a flow velocity control plate 30, and a flow deflector 40. The water distribution deceleration tank 20 faces the water distribution pipes 10 with the open side and is suspended below the ports of the water distribution pipes 10; the flow velocity control plate 30 is located at the open side of the water distribution deceleration tank 20 and is sleeved at the end of the water distribution pipe 10, and the flow deflector 40 is connected to the periphery of the open side of the water distribution deceleration tank 20.
Wherein, an annular water passage opening 50 for water to enter and exit the water distribution decelerating groove 20 is formed between the periphery of the flow velocity control plate 30 and the open side of the water distribution decelerating groove 20. The flow velocity control plate 30 can slide back and forth along the axial direction of the end part of the water distribution pipe 10; when the flow velocity of the water output by the water distribution pipe 10 is large, the flow velocity control plate 30 can be driven to slide and rise along the water distribution pipe 10, and the water containing space of the water distribution deceleration tank 20 is enlarged, so that the flow velocity of the water is slowed down; according to the setting, the water flow can be slowed down within a control range.
Specifically, the water distribution decelerating tank 20 is a structural body having a water containing space, the whole body of the water distribution decelerating tank may be a hemispherical structure or a square structure, and the water containing space may be a corresponding shape or various shapes. The open side of the water distribution decelerating tank 20 may have various shapes such as a circle, an ellipse, or a polygon.
The water distribution decelerating trough 20 may be suspended below the ports of the water distribution pipes 10 by a bracket, and the water containing space thereof is communicated with the water distribution pipes 10, so as to receive water from the water distribution pipes 10 or water in the water containing space may enter the water distribution pipes 10.
The flow velocity control plate 30 is a flat plate having a size smaller than the open side of the water distribution decelerating tank 20 so that an annular water passage port 50 is formed between the flow velocity control plate 30 and the open side of the water distribution decelerating tank 20. The flow velocity control plate 30 may be formed in a shape corresponding to the open side shape of the water distribution decelerating tank 20.
The baffle 40 is a ring-shaped piece, and the inner ring is matched and connected with the open side of the water distribution decelerating groove 20. The water flow overflowing from the annular water passage port 50 flows out of the outside along the surface of the guide vane 40 in a laminar flow; alternatively, the external water flows into the water distribution deceleration tank 20 through the annular water passage port 50 along the surface of the guide vane 40 in a laminar flow.
Further, according to the fact that the flow rate control plate 30 is slidable at the end of the water distribution pipe 10, a limiting member (not shown) is disposed at the end of the water distribution pipe 10 and is engaged with the flow rate control plate 30, and the limiting member can serve as a sliding guide for the flow rate control plate 30 and can limit the flow rate control plate 30 to rotate along the circumferential direction of the water distribution pipe 10.
Alternatively, the limiting member is a guide rail protruding from the end of the water distribution pipe 10 and extending along the axial direction of the water distribution pipe 10, and the outer periphery of the flow velocity control plate 30 is provided with a guide groove matched with the guide rail; the flow velocity control plate 30 is circumferentially limited on the water distributor 10 by matching the guide groove and the guide rail, and can slide back and forth along the guide rail. Or, the limiting member is a guide groove which is arranged at the end of the water distribution pipe 10 and extends along the axial direction of the water distribution pipe 10, and the periphery of the flow velocity control plate 30 is provided with a convex guide rail which is matched with the guide groove; the flow velocity control plate 30 is circumferentially limited on the water distributor 10 by the matching of the guide groove and the guide rail, and can slide back and forth along the guide groove.
When the water energy storage and distribution device is used in an energy storage water tank, water flowing in and out of the water distribution pipe 10 is distributed on the flow guide sheet 40 in a laminar flow mode to form a water layer with the same temperature with water in the energy storage water tank, so that the flow rate of the water is ensured to be within a control range during energy storage and release, the problem of increased thickness of a thermocline due to disturbance caused by overlarge flow rate of the water is solved, and the energy storage efficiency is ensured.
As shown in fig. 2, the water energy storage apparatus according to an embodiment of the present invention includes an energy storage water tank 1, a first water distribution pipe 2 disposed at an upper portion of the energy storage water tank 1, a second water distribution pipe 3 disposed at a lower portion of the energy storage water tank 1, a plurality of first water distribution devices 4 connected to the first water distribution pipe 2 at intervals, and a plurality of second water distribution devices 5 connected to the second water distribution pipe 3 at intervals.
The first water distribution device 4 and the second water distribution device 5 are both the water energy storage water distribution device of the invention, that is, the first water distribution device 4 and the second water distribution device 5 both include the water distribution pipe 10, the water distribution decelerating groove 20, the flow velocity control plate 30 and the flow deflector 40 shown in fig. 1.
Further, the water energy storage device of the present invention further comprises a plurality of temperature sensors 6 arranged in the energy storage water tank 1 at intervals from top to bottom along the height direction of the energy storage water tank 1. A plurality of temperature sensors 6 may be provided on an inner wall of one side of the energy storage water tank 1.
According to the height direction of the energy storage water tank 1, the temperature sensor 6 comprises a plurality of temperature sensors 6 distributed at the upper part in the energy storage water tank 1, a plurality of temperature sensors 6 distributed at the middle part in the energy storage water tank 1 and a plurality of temperature sensors 6 distributed at the lower part in the energy storage water tank 1. The temperature sensors 6 in the middle of the energy storage water tank 1 are arranged at equal intervals. Preferably, a plurality of temperature sensors 6 located at the upper part and the lower part in the energy storage water tank 1 are arranged at intervals in a non-equidistant mode, so that the temperature measurement accuracy is improved, and the thickness measurement accuracy of the thermocline is ensured.
Alternatively, the upper and lower parts of the energy-storing water tank 1 may respectively occupy one fifth to one eighth of the height of the entire energy-storing water tank 1.
Corresponding to the temperature sensors 6, connecting wires extending from top to bottom can be arranged in the energy storage water tank 1 to form a temperature zone, and the temperature sensors 6 are connected to the connecting wires at intervals from top to bottom.
Furthermore, the water energy storage device of the invention further comprises a central vertical pipe 7 arranged in the energy storage water tank 1 and connected between the first water dividing pipe 2 and the second water dividing pipe 3, and a first water inlet and outlet pipeline 8 and a second water inlet and outlet pipeline 9 which are respectively connected with the central vertical pipe 7 and extend out of the energy storage water tank 1.
A partition plate (not shown) is arranged in the central vertical pipe 7, and the partition plate is positioned between the first water inlet and outlet pipeline 8 and the second water inlet and outlet pipeline 9, and isolates the first water inlet and outlet pipeline 8 from the second water inlet and outlet pipeline 9, so that the first water inlet and outlet pipeline 8 and the second water inlet and outlet pipeline 9 cannot be communicated through the central vertical pipe 7.
The first water inlet and outlet pipeline 8 is communicated with the first water distribution pipe 2 and the first water distribution device 4 through a central vertical pipe 7, and the second water inlet and outlet pipeline 9 is communicated with the second water distribution pipe 3 and the second water distribution device 5 through the central vertical pipe 7.
In addition, the water energy storage apparatus of the present invention further comprises a control system 11. The control system 11 is connected to the temperature sensor 6 and receives temperature information from the temperature sensor 6. The temperature sensor 6 may be connected to the control system 11 by a connection line.
Referring to fig. 1 and 2, the water energy storage control method of the water energy storage device of the invention comprises energy storage and energy release.
Wherein the energy storage comprises cold storage.
During cold accumulation, low-temperature water sequentially passes through the second water inlet and outlet pipeline 9, the central vertical pipe 7 and the second water distribution pipe 3 to enter the second water distribution device 5, passes through the annular water through hole 50 of the second water distribution device 5 and then enters the energy storage water tank 1 along the flow deflector 40. If the flow velocity is too large, when the low-temperature water passes through the annular water passage 50, the flow velocity control plate 30 slides and rises along the end of the water distribution pipe 10 axially under the action of the water flow, so as to increase the water containing space of the water distribution decelerating tank 20 and slow down the flow velocity of the low-temperature water to within the control range (for example, within 0.1 m/s).
Meanwhile, high-temperature water at the upper part in the energy storage water tank 1 enters the first water distribution device 4, sequentially passes through the first water distribution pipe 2 and the central vertical pipe 7, enters the first water inlet and outlet pipeline 8, and is output out of the energy storage water tank 1.
In the cold accumulation process, the temperature sensor 6 in the energy storage water tank 1 detects the temperature in the energy storage water tank 1 and obtains the thickness of the thermocline. If the thickness of the thermocline exceeds the preset thickness, particularly at the end of cold accumulation, the low-temperature water flow rate entering the energy storage water tank 1 and the high-temperature water flow rate output by the energy storage water tank 1 are slowed down, and the thickness of the thermocline is regulated and controlled accordingly. Wherein, the control of the flow rate of the low-temperature water entering the energy storage water tank 1 is realized by the control of the flow rate of the low-temperature water entering the second water inlet and outlet pipeline 9 by the control system 11 and the cooperation of the second water distribution device 5; the control of the flow rate of the high-temperature water output by the energy storage water tank 1 is realized by controlling the flow rate of the high-temperature water flowing out from the first water inlet and outlet pipeline 8 and matching with the first water distribution device 4.
The preset thickness of the thermocline layer is within 1 meter, and further preferably within 0.5 meter.
Discharging can include cooling.
When the water is cooled, the low-temperature water in the energy storage water tank 1 enters the second water distribution device 5 and flows out of the energy storage water tank 1 through the second water distribution pipe 3, the central vertical pipe 7 and the second water inlet and outlet pipeline 9 in sequence. Specifically, the low-temperature water enters the water distribution decelerating tank 20 along the flow deflector 40 of the second water distribution device 5 through the annular water passage 50, and then enters the water distribution pipe 10 upwards, and then flows to the second water distribution branch pipe 3 along the water distribution pipe 10. The return water can enter the upper part of the energy storage water tank 1 through the first water inlet and outlet pipeline 8, the central vertical pipe 7, the first water distribution pipe 2 and the first water distribution device 4.
In the cooling process, the thickness of the thermocline is detected by the temperature sensor 6 at the upper part in the energy storage water tank 1. When the thickness of the thermocline exceeds the preset thickness, the low-temperature water flow entering the second water distribution device 5 is reduced, the high-temperature water flow speed flowing out of the first water distribution device 4 at the upper part in the energy storage water tank 1 is reduced, and the thickness of the thermocline is controlled at the preset thickness through the cooperative matching of the first water distribution device 4 and the second water distribution device 5.
The preset thickness of the thermocline layer is within 1 meter, and further preferably within 0.5 meter.
Specifically, when the thickness of the thermocline exceeds the preset thickness, the flow velocity control plate 30 of the second water distribution device 5 slides downwards to reduce the water containing space of the water distribution reduction tank 20, so as to reduce the flow entering the water distribution pipe 10; the flow velocity control plate 30 of the first water distribution device 4 slides upwards to increase the water containing space of the water distribution decelerating tank 20, thereby reducing the flow velocity, controlling the flow velocity of the high-temperature water flowing into the energy storage water tank 1 and avoiding the increase of the thickness of the thermocline.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A water energy storage and distribution device is characterized by comprising a water distribution pipe, a water distribution deceleration tank, a flow velocity control plate and a flow deflector, wherein the water distribution deceleration tank is hung below a port of the water distribution pipe and faces the port from an open side;
the flow velocity control plate can slide back and forth along the axial direction of the end part of the water distribution pipe; an annular water through hole for water to enter and exit the water distribution decelerating groove is formed between the periphery of the flow velocity control plate and the open side of the water distribution decelerating groove.
2. The water distribution device for water energy storage according to claim 1, wherein the end of the water distribution pipe is provided with a limiting member which is matched with the flow velocity control plate and limits the rotation of the flow velocity control plate.
3. The water distribution device for water energy storage according to claim 2, wherein the limiting member is a guide rail protruding from the end of the water distribution pipe and extending along the axial direction of the water distribution pipe, and the flow velocity control plate is provided with a guide groove at the periphery thereof, the guide groove being matched with the guide rail; the flow rate control plate can slide back and forth along the guide rail.
4. The water distribution device for water energy storage according to claim 2, wherein the limiting member is a guide groove which is arranged at the end of the water distribution pipe and extends along the axial direction of the water distribution pipe, and the periphery of the flow velocity control plate is provided with a convex guide rail which is matched with the guide groove; the flow rate control plate can slide back and forth along the guide groove.
5. The water energy storage and distribution device according to any one of claims 1 to 4, wherein the water distribution decelerating trough is hemispherical or square.
6. The water energy storage and distribution device according to any one of claims 1 to 4, wherein the open side of the water distribution decelerating tank is circular, elliptical or polygonal.
7. A water energy storage device is characterized by comprising an energy storage water tank, a first water distribution pipe arranged at the upper part in the energy storage water tank, a second water distribution pipe arranged at the lower part in the energy storage water tank, a plurality of first water distribution devices connected to the first water distribution pipe at intervals, and a plurality of second water distribution devices connected to the second water distribution pipe at intervals; the first water distribution device and the second water distribution device are both the water energy storage water distribution device of any one of claims 1 to 6.
8. The water energy storage device according to claim 7, further comprising a plurality of temperature sensors arranged in the energy storage water tank at intervals from top to bottom in a height direction of the energy storage water tank;
wherein, a plurality of temperature sensors that are located upper portion and lower part are all inequally spaced and arrange in the energy storage water pitcher.
9. The water energy storage device of claim 7, further comprising a central vertical pipe disposed in the energy storage tank and connected between the first water diversion pipe and the second water diversion pipe, a first water inlet and outlet pipe and a second water inlet and outlet pipe connected to the central vertical pipe, respectively, and extending out of the energy storage tank; a partition plate is arranged in the central vertical pipe and is positioned between the first water inlet and outlet pipeline and the second water inlet and outlet pipeline to isolate the first water inlet and outlet pipeline from the second water inlet and outlet pipeline;
the first water inlet and outlet pipeline is communicated with the first water distribution pipe and the first water distribution device through the central vertical pipe, and the second water inlet and outlet pipeline is communicated with the second water distribution pipe and the second water distribution device through the central vertical pipe.
10. A water energy storage control method of a water energy storage apparatus according to any one of claims 7 to 9, comprising energy storage and discharge;
the energy storage comprises cold accumulation; when cold accumulation is carried out, low-temperature water sequentially passes through the second water inlet and outlet pipeline, the central vertical pipe and the second water distribution pipe, enters the second water distribution device, passes through the annular water through hole of the second water distribution device and then enters the energy storage water tank along the flow deflector; when the low-temperature water passes through the annular water through opening, the flow speed control plate slides and rises along the end part of the water distribution pipe axially under the action of water flow, the water containing space of the water distribution speed reduction tank is enlarged, and the flow speed of the low-temperature water is reduced to be within a control range;
high-temperature water at the upper part in the energy storage water tank enters the first water distribution device, sequentially passes through the first water distribution pipe and the central vertical pipe, enters the first water inlet and outlet pipeline and is output out of the energy storage water tank;
in the cold accumulation process, a temperature sensor in the energy storage water tank detects the temperature in the energy storage water tank and obtains the thickness of the thermocline; if the thickness of the thermocline exceeds the preset thickness, slowing down the flow rate of low-temperature water entering the energy storage water tank and the flow rate of high-temperature water output by the energy storage water tank;
the discharging comprises discharging; when the water is cooled, the low-temperature water in the energy storage water tank enters the second water distribution device and flows out of the energy storage water tank through the second water distribution pipe, the central vertical pipe and the second water inlet and outlet pipeline in sequence;
in the cooling process, the thickness of the thermocline is detected by a temperature sensor at the upper part in the energy storage water tank; and when the thickness of the thermocline exceeds the preset thickness, the low-temperature water flow entering the second water distribution device is reduced, and the high-temperature water flow flowing out of the first water distribution device at the upper part in the energy storage water tank is reduced.
CN201911345750.1A 2019-12-24 2019-12-24 Water energy storage water distribution device, water energy storage equipment and water energy storage control method thereof Pending CN111059956A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911345750.1A CN111059956A (en) 2019-12-24 2019-12-24 Water energy storage water distribution device, water energy storage equipment and water energy storage control method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911345750.1A CN111059956A (en) 2019-12-24 2019-12-24 Water energy storage water distribution device, water energy storage equipment and water energy storage control method thereof

Publications (1)

Publication Number Publication Date
CN111059956A true CN111059956A (en) 2020-04-24

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