CN109059593B - High-efficiency energy storage water tank capable of uniformly distributing water - Google Patents
High-efficiency energy storage water tank capable of uniformly distributing water Download PDFInfo
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- CN109059593B CN109059593B CN201810894951.6A CN201810894951A CN109059593B CN 109059593 B CN109059593 B CN 109059593B CN 201810894951 A CN201810894951 A CN 201810894951A CN 109059593 B CN109059593 B CN 109059593B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 576
- 238000004146 energy storage Methods 0.000 title claims abstract description 207
- 230000002829 reductive effect Effects 0.000 claims description 19
- 238000004891 communication Methods 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 8
- 238000005507 spraying Methods 0.000 abstract description 11
- 239000010410 layer Substances 0.000 description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 16
- 239000007788 liquid Substances 0.000 description 9
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- 230000003068 static effect Effects 0.000 description 7
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008646 thermal stress Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008642 heat stress Effects 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
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- 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
- F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
-
- 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
- F28D2020/0065—Details, e.g. particular heat storage tanks, auxiliary members within tanks
- F28D2020/0069—Distributing arrangements; Fluid deflecting means
-
- 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)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention relates to a high-efficiency energy storage water tank capable of uniformly distributing water, which comprises an energy storage water tank, wherein the upper part of the energy storage water tank is communicated with a high-temperature water channel pipe, the lower part of the energy storage water tank is communicated with a low-temperature water channel pipe, the high-temperature water channel pipe is communicated with a water distributor, the water distributor comprises a water distribution main pipe which is arranged in a radial shape, the water distribution main pipe is communicated with a water distribution pipe group which is arranged horizontally, the water distribution pipe group comprises a plurality of annular water distribution pipes which are coaxial and are arranged at intervals in the radial direction, a plurality of nozzles are arranged on each annular water distribution pipe at intervals along the circumferential direction, and the water spraying flow of each annular water distribution pipe is gradually increased from the radial center close to the energy storage water tank to the radial center far from the energy storage water tank. The energy storage water tank can distribute water uniformly, effectively improves the stability of the water distribution plate, can greatly improve the utilization rate of the energy storage water tank, effectively improves the heat supply efficiency, and reduces the cost input.
Description
Technical Field
The invention relates to the technical field of wind power, in particular to a high-efficiency energy storage water tank capable of uniformly distributing water.
Background
The installed capacity of wind power is rapidly increased worldwide, but the problem of large-scale wind power grid-connected digestion is increasingly remarkable due to randomness, volatility and anti-peak regulation of wind power output, and meanwhile, the wind power output is forced to be reduced and the wind discarding phenomenon is generated due to the constraint restriction of safe and stable operation of a power system, so that the wind power generation system has become a great important factor for restricting wind power development. The electrode type boiler and the energy storage water tank system can store heat under the condition of sufficient power generation due to flexible utilization of electric loads, release heat when the power generation is insufficient, have higher conversion rate and utilization rate, and the wind power heat supply system formed by the electrode type boiler and the energy storage water tank system can well solve the wind abandoning phenomenon. However, the existing energy storage water tank is small in size, the inclined temperature layer is thick, the heat preservation effect is not ideal enough due to the fact that the tank body is large, and the utilization rate of the water tank is low.
In the prior art, hot water in a water distribution disc of the energy storage water tank directly flows to the top of the energy storage water tank through a water distribution port, when the diameter of the energy storage water tank is larger, the length of each branch water distribution pipe is longer, the pressure loss of a water outlet close to a main water distribution pipe is small, the pressure loss of a water outlet pipe far away from the main water distribution pipe is large, the static pressure at each nozzle is unbalanced, the flow velocity at the outlet of the nozzle is unstable, the original inclined temperature layer is easily damaged, and the utilization rate of the whole water tank is reduced.
In the prior art, an energy storage water tank is also provided, the shape of the energy storage water tank is cylindrical, the water distribution plate is 8-angle or 6-angle, the main water distribution pipe enters the water tank and then is divided into two parts and four parts, and then enters each water outlet branch pipe and water hole of the 8-angle water distribution plate, the water distribution plate is connected with the water distribution plate only by the inner wall of the water tank, and for a large-scale water tank, the water distribution plate of the structure has single water flow direction, large reaction force is easily generated for the whole water distribution plate structure, and the stability is reduced.
Therefore, the inventor provides a high-efficiency energy storage water tank capable of uniformly distributing water by virtue of experience and practice of related industries for many years so as to overcome the defects of the prior art.
Disclosure of Invention
The invention aims to provide a high-efficiency energy storage water tank capable of uniformly distributing water, which solves the problems of low utilization rate of the energy storage water tank and poor stability of a water distribution plate caused by uneven water distribution in the prior art.
The invention aims to achieve the high-efficiency energy storage water tank capable of uniformly distributing water, the high-efficiency energy storage water tank comprises an energy storage water tank, the upper part of the energy storage water tank is communicated with a high-temperature water channel pipe, the lower part of the energy storage water tank is communicated with a low-temperature water channel pipe, the low-temperature water channel pipe is communicated with a disk-shaped water distributor, the water distributor comprises a radial water distribution main pipe, a horizontal water distribution pipe group is communicated with the water distribution main pipe, the water distribution pipe group comprises a plurality of coaxial annular water distribution pipes which are arranged at intervals in the radial direction, a plurality of nozzles are arranged on the annular water distribution pipes at intervals in the circumferential direction, and the water spraying flow of each annular water distribution pipe is gradually increased from the radial center close to the energy storage water tank to the radial center far away from the energy storage water tank.
In a preferred embodiment of the present invention, the low-temperature water channel pipe is communicated with the water distributor.
In a preferred embodiment of the present invention, two adjacent annular water distribution pipes are radially communicated through a plurality of communication pipes arranged at intervals along the circumferential direction, and the communication pipes positioned at two radial sides of the same annular water distribution pipe are circumferentially staggered.
In a preferred embodiment of the present invention, the pipe diameter of each annular water distribution pipe is gradually reduced from the radial center near the energy storage water tank to the radial center far from the energy storage water tank, and the number of the nozzles on each annular water distribution pipe is gradually increased from the radial center near the energy storage water tank to the radial center far from the energy storage water tank.
In a preferred embodiment of the present invention, the annular water distribution pipe near the side wall of the energy storage water tank is set to be a first annular water distribution pipe, the nozzle arranged on the first annular water distribution pipe is set to be a first nozzle, the nozzle arranged on each annular water distribution pipe positioned on the radial inner side of the first annular water distribution pipe is set to be a second nozzle, the cross section area of the first nozzle is gradually reduced from the inlet to the outlet, the cross section area of the second nozzle is gradually increased from the inlet to the outlet, and the water outlet pressure of each first nozzle and each second nozzle is the same.
In a preferred embodiment of the present invention, the radial distance between two adjacent annular water distribution pipes is gradually reduced from the radial center close to the energy storage water tank to the radial center far from the energy storage water tank.
In a preferred embodiment of the present invention, the water distribution pipe group communicated with the high temperature water channel pipe is a first water distribution pipe group, a buffer connection structure capable of absorbing thermal displacement of the first water distribution pipe group is arranged between the first water distribution pipe group and the side wall of the energy storage water tank, the buffer connection structure comprises a plurality of U-shaped hooks arranged at intervals along the circumferential direction, one end of each U-shaped hook is in abutting connection with the outer wall of the annular water distribution pipe close to the side wall of the energy storage water tank, and the other end of each U-shaped hook is in abutting connection with the side wall of the energy storage water tank.
In a preferred embodiment of the present invention, the water distribution main pipe includes a central pipe with one end capable of communicating with the high temperature water channel pipe or the low temperature water channel pipe, the other end of the central pipe is in a closed arrangement, a plurality of water distribution branch pipes extending along a radial direction are arranged on a side wall of the central pipe in a communicating manner, and a plurality of water distribution ports for communicating with each annular water distribution pipe are arranged on each water distribution branch pipe.
In a preferred embodiment of the present invention, a central pipe connected to the high-temperature water channel pipe is suspended and connected to the top wall of the energy storage water tank by a central pipe hanging rod, annular pipe hanging parts are circumferentially arranged on each annular water distribution pipe connected to the high-temperature water channel pipe at intervals, annular pipe hanging parts are connected to annular pipe hanging parts, and the other ends of annular pipe hanging parts are connected to the top wall of the energy storage water tank.
In a preferred embodiment of the present invention, the outside of the energy storage water tank is covered with a multi-layer heat insulation structure.
In a preferred embodiment of the invention, the pressure sensors are uniformly arranged at intervals along the circumferential direction at the bottom of the inner side of the energy storage water tank.
Therefore, the high-efficiency energy storage water tank capable of uniformly distributing water has the following beneficial effects:
(1) In the high-efficiency energy storage water tank capable of uniformly distributing water, the annular water distribution pipes and the radial water distribution main pipes of the novel water distributor can uniformly distribute high-temperature water and low-temperature water, the water spraying flow of the annular water distribution pipes is gradually increased from the radial center close to the energy storage water tank to the radial center far away from the energy storage water tank, the water distribution amount in unit area is ensured to be the same, so that uniform injection of high-temperature water and low-temperature water in the energy storage water tank is realized, the stability of an inclined temperature layer is ensured, the utilization efficiency of the energy storage water tank is improved, and the heat supply efficiency is effectively improved; the main water distribution pipe is radially arranged, so that the reverse thrust borne by the main pipe is more uniform, the thermal stress of the main water distributor body is reduced, the overall stability of the water distributor is improved, and the strength of the energy storage water tank after being enlarged is effectively improved;
(2) The high-efficiency energy storage water tank capable of uniformly distributing water can realize the minimization of the cross-sectional area of the water tank with equal average water spraying quantity, and effectively reduce the investment and the occupied area of equipment;
(3) In the high-efficiency energy storage water tank capable of uniformly distributing water, the nozzles close to the radial center of the energy storage water tank are arranged in a necking mode, and the nozzles far away from the radial center of the energy storage water tank are arranged in a flaring mode, so that the water outlet pressure of the nozzles on the whole water distributor is consistent, and the uniform water distribution is further ensured; the static pressure of each nozzle at the same radial position of each annular water distribution pipe is the same, and the communication pipes arranged among the annular water distribution pipes can balance the radial water pressure, so that the pressure among the annular water distribution pipes is balanced, the same static pressure can increase the self-balancing capacity of the liquid level, and the uniformity of water distribution is ensured. The water distribution is uniform and stable, the stability of the inclined temperature layer can be ensured, and the original balance of the water newly entering the energy storage water tank can not be damaged, so that the utilization rate of the energy storage water tank is improved;
(4) In the high-efficiency energy storage water tank capable of uniformly distributing water, the U-shaped hooks are arranged between the water distribution pipe group communicated with the high-temperature water channel pipe and the side wall of the energy storage water tank, so that the heat displacement of the annular water distribution pipe when heated can be fully absorbed, the heat stress of the whole water distributor is released, the whole water distributor can be stably supported in the energy storage water tank, and the stability of the water distributor is improved; the horizontal or vertical pi-shaped compensation bent structures are arranged between the interfaces of the high-temperature water channel pipe and the energy storage water tank and the water distribution main pipe of the water distributor, so that the thermal displacement can be absorbed, the high-temperature water channel pipe and the low-temperature water channel pipe can be kept stable under the condition of thermal expansion, radial swaying and swaying can not be generated, and the whole water distributor is stabilized;
(5) In the high-efficiency energy storage water tank capable of uniformly distributing water, the outer side of the energy storage water tank is coated with the multi-layer heat insulation structure, so that the heat insulation performance of the energy storage water tank is enhanced, the heat loss is reduced, the original layered structure in the energy storage water tank is prevented from being damaged after the heat loss is excessive, and the utilization rate of the energy storage water tank is increased;
(6) In the high-efficiency energy storage water tank capable of uniformly distributing water, the pressure sensor is arranged at the bottom of the inner side of the energy storage water tank, so that the high-efficiency energy storage water tank is simple and convenient to install and simple and accurate to calculate.
Drawings
The following drawings are only for purposes of illustration and explanation of the present invention and are not intended to limit the scope of the invention. Wherein:
fig. 1: the invention discloses a structural schematic diagram of a high-efficiency energy storage water tank capable of uniformly distributing water.
Fig. 2: is a cross-sectional view at A-A in fig. 1.
Fig. 3: an enlarged view of the position I in FIG. 2.
In the figure:
100. high-efficiency energy storage water tanks capable of uniformly distributing water;
1. an energy storage water tank;
11. a high temperature water channel pipe; 12. a low-temperature water channel pipe;
2. a water distributor;
21. a water distribution main pipe;
211. a central tube;
212. a water distribution branch pipe; 2121. a distribution nozzle;
22. a water distribution pipe group; 221. a first annular water distribution pipe;
23. a communicating pipe;
24. u-shaped hooks;
31. a first nozzle; 32. a second nozzle;
41. a central tube boom; 42. a ring pipe hoisting part; 43. a loop suspender;
5. a pi-type compensation bend structure;
6. a multi-layer insulating structure;
61. a high-performance heat-insulating material layer; 62. a radiation reflecting layer; 63. a protective layer;
7. a nitrogen charging system;
8. a breather valve.
Detailed Description
For a clearer understanding of technical features, objects, and effects of the present invention, a specific embodiment of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1 to 3, the present invention provides a high-efficiency energy storage water tank 100 capable of uniformly distributing water, which comprises an energy storage water tank 1, wherein the upper part of the energy storage water tank 1 is communicated with a high-temperature water channel pipe 11, the lower part of the energy storage water tank 1 is communicated with a low-temperature water channel pipe 12 (the high-temperature water and the low-temperature water mentioned herein are relative temperatures, the upper water temperature of the energy storage water tank 1 is higher than the lower water temperature of the energy storage water tank 1, the temperature is not limited explicitly), the high-temperature water channel pipe 11 is communicated with a novel disc-type water distributor 2, the water distributor 2 comprises a water distribution main pipe 21 which is arranged in a radial shape, the water distribution main pipe 21 is communicated with a water distribution pipe group 22 which is arranged in a horizontal shape, the water distribution pipe group 22 comprises a plurality of annular water distribution pipes which are coaxially and radially arranged at intervals, and in a specific embodiment of the present invention, the number of annular water distribution pipes in each water distribution pipe 22 is 3; a plurality of nozzles (the nozzles are of a structure allowing liquid to flow bidirectionally and are arranged on each annular water distribution pipe at intervals along the circumferential direction, when the external pressure of the nozzles is higher than the internal pressure of the annular water distribution pipe, the liquid flows out from the energy storage water tank through the nozzles and the water distributor, when the external pressure of the nozzles is lower than the internal pressure of the annular water distribution pipe, the liquid flows into the energy storage water tank through the nozzles and the water distributor), and in order to facilitate water distribution operation, the openings of the nozzles which can be communicated with the high-temperature water channel pipe 11 are upwards arranged; the water spraying flow of each annular water distribution pipe is gradually increased from the radial center close to the energy storage water tank to the radial center far from the energy storage water tank.
In the high-efficiency energy storage water tank capable of uniformly distributing water, the annular water distribution pipes and the radial water distribution main pipes of the novel water distributor can uniformly distribute high-temperature water, the water spraying flow of the annular water distribution pipes is gradually increased from the radial center close to the energy storage water tank to the radial center far from the energy storage water tank, the water distribution amount in unit area is ensured to be the same, so that uniform injection of high-temperature water in the energy storage water tank is realized, the stability of an inclined temperature layer is ensured, the utilization efficiency of the energy storage water tank is improved, and the heat supply efficiency is effectively improved; the main water distribution pipe is radially arranged, so that the reverse thrust borne by the main pipe (high-temperature water channel pipe) is more uniform, the thermal stress of the main water distributor body is reduced, the overall stability of the water distributor is improved, and the strength of the energy storage water tank after being enlarged is effectively improved; the high-efficiency energy storage water tank capable of uniformly distributing water can realize the minimization of the cross-sectional area of the water tank with equal average water spraying quantity, and effectively reduces the investment and the occupied area of equipment.
Further, as shown in fig. 1, in the high-efficiency energy storage water tank capable of uniformly distributing water, the low-temperature water channel pipe can be communicated with a conventional water distributor, can be communicated with a water distributor with the same structure as the water distributor 2, and can be communicated with water distributors with other structural forms. In the embodiment of the invention, the low-temperature water channel pipes are communicated with the water distributor 2, the water distributor 2 comprises a radial water distribution main pipe 21, a horizontal water distribution pipe group 22 is communicated with the water distribution main pipe 21, the water distribution pipe group 22 comprises a plurality of coaxial annular water distribution pipes which are radially arranged at intervals, a plurality of nozzles are circumferentially arranged at intervals on each annular water distribution pipe, and in order to facilitate water distribution operation, the openings of the nozzles which can be communicated with the low-temperature water channel pipes 12 are downwards arranged; the water spraying flow of each annular water distribution pipe is gradually increased from the radial center close to the energy storage water tank to the radial center far from the energy storage water tank.
Further, as shown in fig. 2, two adjacent annular water distribution pipes are radially communicated through a plurality of communication pipes 23 arranged at intervals along the circumferential direction, and in the present embodiment, the circumferential included angle between two adjacent communication pipes 23 arranged at the same radius is 90 °; in order to balance the pressure difference between two adjacent annular water distribution pipes, communication pipes 23 positioned on two radial sides of the same annular water distribution pipe are arranged in a circumferential staggered manner. The static pressure of each nozzle (water distribution port) at the same radial position can be the same by each annular water distribution pipe, the communication pipe arranged between the annular water distribution pipes can balance the radial water pressure, so that the pressure between each annular water distribution pipe is balanced, the self-balancing capacity of the liquid level can be increased by the same static pressure, and the uniformity of water distribution is ensured. The water distribution is uniform and stable, the stability of the inclined temperature layer can be ensured, and the original balance of the water newly entering the energy storage water tank 1 can not be damaged, so that the utilization rate of the energy storage water tank is improved.
Further, the water distribution area at the position close to the radial center of the energy storage water tank is small, and the water distribution area at the position far away from the radial center of the energy storage water tank is large, so that the water distribution on each annular water distribution pipe is uniform, and the water spraying flow of the annular water distribution pipe close to the radial center of the energy storage water tank is smaller than that of the annular water distribution pipe far away from the radial center of the energy storage water tank; meanwhile, the water pressure in the annular water distribution pipe (inner ring annular water distribution pipe) close to the radial center of the energy storage water tank is larger than the water pressure in the annular water distribution pipe (outer ring annular water distribution pipe) far away from the radial center of the energy storage water tank, the pipe diameter of each annular water distribution pipe is gradually reduced from the radial center close to the energy storage water tank to the radial center far away from the energy storage water tank, and the number of nozzles on each annular water distribution pipe is gradually increased from the radial center close to the radial center far away from the energy storage water tank.
Further, as shown in fig. 1 and 2, the annular water distribution pipe near the side wall of the energy storage water tank is set to be a first annular water distribution pipe 221, the nozzle arranged on the first annular water distribution pipe 221 is set to be a first nozzle 31, the nozzle arranged on each annular water distribution pipe located on the radial inner side of the first annular water distribution pipe 221 is set to be a second nozzle 32, the sectional area of the first nozzle 31 is gradually reduced from the inlet to the outlet (the inlet of the first nozzle 31 is communicated with the first annular water distribution pipe 221, the outlet of the first nozzle 31 is upwards arranged and forms a positive horn structure, namely, the shrinkage opening is arranged), the sectional area of the second nozzle 32 is gradually increased from the inlet to the outlet (the inlet of the second nozzle 32 is communicated with the annular water distribution pipe located on the radial inner side of the first annular water distribution pipe 221, the outlet of the second nozzle 32 is upwards arranged and forms an inverted horn structure, namely, the flaring opening is arranged), and the water outlet pressure of each first nozzle and each second nozzle is identical. The water pressure in the annular water distribution pipe (inner ring annular water distribution pipe) close to the radial center of the energy storage water tank is larger than the water pressure in the annular water distribution pipe (outer ring annular water distribution pipe) far away from the radial center of the energy storage water tank, the second nozzle 32 of the inverted horn-shaped structure can increase the water outlet sectional area to reduce the outlet pressure, the second nozzle 32 of the positive horn-shaped structure can reduce the water outlet sectional area to increase the outlet pressure, the nozzle resistance loss originally close to the radial center of the energy storage water tank is small, the pressure difference caused by the large nozzle resistance loss far away from the radial center of the energy storage water tank can be balanced by arranging different nozzle forms, and the nozzle outlet pressure on the whole water distributor can be consistent.
Further, the purpose of the same water distribution amount in unit area can be further achieved by adjusting the density distribution of the annular water distribution pipes. The water distribution area at the position close to the radial center of the energy storage water tank is small, the water distribution area at the position far away from the radial center of the energy storage water tank is large, the radial distance between two adjacent annular water distribution pipes is gradually reduced from the radial center close to the radial center of the energy storage water tank to the radial center far away from the energy storage water tank, namely the annular water distribution pipes are arranged sparsely to finely from inside to outside, so that the requirement that the total water distribution amount at the position close to the radial center of the energy storage water tank is smaller than the total water distribution amount at the position far away from the radial center of the energy storage water tank is met, the water distribution amount per unit area is the same, and uniform water distribution is realized.
Further, as shown in fig. 1, the water distribution pipe group communicated with the high-temperature water channel pipe 11 is set to be a first water distribution pipe group, a buffer connection structure capable of absorbing the thermal displacement of the first water distribution pipe group is arranged between the first water distribution pipe group and the side wall of the energy storage water tank 1, the buffer connection structure comprises a plurality of U-shaped hooks 24 arranged at intervals along the circumferential direction, one end of each U-shaped hook 24 is in abutting connection with the outer wall of an annular water distribution pipe (first annular water distribution pipe 221) close to the side wall of the energy storage water tank 1, and the other end of each U-shaped hook 24 is in abutting connection with the side wall of the energy storage water tank 1. The U-shaped hook 24 can fully absorb the thermal displacement of the annular water distribution pipe when being heated, and release the thermal stress of the whole water distributor, so that the whole water distributor can be stably supported in the energy storage water tank 1, and the stability of the water distributor 2 is improved.
As shown in fig. 1, in order to further improve the overall stability of the high-efficiency energy storage water tank 100 in which water distribution can be uniformly distributed, the high-temperature water channel pipe 11 and the low-temperature water channel pipe 12 are provided with a horizontal or vertical pi-shaped compensation bend structure 5 between the interfaces of the high-temperature water channel pipe 11 and the energy storage water tank 1 and the water distribution main pipe 21 of the water distributor, and the horizontal or vertical pi-shaped compensation bend structure is used for absorbing thermal displacement, so that the high-temperature water channel pipe 11 and the low-temperature water channel pipe 12 can be kept stable under the condition of thermal expansion, radial swing and shaking can not be generated, and the whole water distributor is stabilized.
Further, as shown in fig. 1, the main water distribution pipe 21 includes a central pipe 211 with one end capable of communicating with the high temperature water channel pipe 11 or the low temperature water channel pipe 12, the other end of the central pipe 211 is in a closed arrangement, a plurality of water distribution branch pipes 212 extending along a radial direction are arranged on a side wall of the central pipe 211 in a communicating manner, and in a specific embodiment of the present invention, the number of the water distribution branch pipes 212 connected to each central pipe 211 is 4 to 6; a plurality of distribution nozzles 2121 for communicating with the annular water distribution pipes are provided on each of the water distribution branch pipes 212. In order to facilitate water distribution operation, openings of distribution nozzles 2121 on the water distribution branch pipes 212 communicated with the high-temperature water channel pipes 11 are arranged upwards, and annular water distribution pipes are arranged above the water distribution branch pipes 212; the distribution nozzles 2121 on the respective water distribution branch pipes 212 communicating with the low-temperature water passage pipe 12 are provided with openings facing downward, and the respective annular water distribution pipes are provided below the water distribution branch pipes 212.
Further, as shown in fig. 1, the central tube 211 communicating with the high temperature water channel tube 11 is suspended and connected to the top wall of the energy storage water tank 1 by a central tube hanger 41, annular hanging parts 42 are circumferentially arranged on each annular water distribution tube communicating with the high temperature water channel tube 11 at intervals, annular hanging parts 42 are connected with annular hanging rods 43, and the other ends of the annular hanging rods 43 are connected to the top wall of the energy storage water tank 1. The water distributor 2 communicated with the high-temperature water channel pipe 11 is connected with the energy storage water tank 1 in a hoisting mode, the hoisting mode allows each part on the water distributor 2 communicated with the high-temperature water channel pipe 11 to realize certain thermal displacement, the thermal stress of the water distributor body is reduced, and the overall stability of the water distributor is improved. The bottom end of the central tube 211 communicated with the low-temperature water channel tube 12 is fixedly connected to the bottom wall of the energy storage water tank 1, and the water distributor 2 communicated with the low-temperature water channel tube 12 is suspended at the lower part of the energy storage water tank 1.
Further, as shown in fig. 2 and 3, the outside of the energy storage water tank 1 is covered with a multilayer heat insulating structure 6. The multi-layer heat insulation structure 6 is a structure of a high-performance heat insulation material layer 61+a radiation-reflecting layer 62+a high-performance heat insulation material layer 61+a protective layer 63 which are sequentially arranged from inside to outside, so that the heat insulation performance of the energy storage water tank is enhanced, the heat loss is reduced, the original layered structure in the energy storage water tank is prevented from being damaged after the heat loss is overlarge, and the utilization rate of the energy storage water tank is increased.
Further, pressure sensors are uniformly arranged at intervals along the circumferential direction at the bottom of the inner side of the energy storage water tank 1. The large-scale energy storage water tank is large in size and high in height, the conventional magnetic turnover plate and electrode point liquid level meter are complex to install, the pressure sensor is arranged at the bottom of the energy storage water tank 1, the pressure sensor utilizes the principle that the heat storage media (water) are different in density under different temperatures to generate different pressures, the pressure sensor can calculate the water volume in the energy storage water tank 1 through density conversion, the liquid level height in the energy storage water tank 1 is calculated, and the pressure sensor is convenient to install, simple and accurate to calculate.
As shown in fig. 1, in order to avoid corrosion of the high-efficiency energy storage water tank 100 capable of uniformly distributing water in use, the energy storage water tank 1 is connected with a nitrogen charging system 7. The nitrogen charging system 7 can charge nitrogen into the energy storage water tank 1, so that the energy storage water tank can maintain the working condition of keeping positive pressure in the high-efficiency energy storage water tank 100 with uniformly distributed water distribution. In order to facilitate the discharge of air above the water surface in the energy storage water tank 1 after water injection, the top of the energy storage water tank 1 is provided with a breather valve 8. When the high-efficiency energy storage water tank 100 capable of uniformly distributing water is a pressure-bearing container, the high-efficiency energy storage water tank is provided with positive pressure, nitrogen filling and pressure maintaining are not needed, and at the moment, the breather valve is used as a safety valve in overpressure. In the process of charging the high-efficiency energy storage water tank 100 capable of uniformly distributing water, the high-temperature water is gradually injected, the breather valve 8 at the top is opened, redundant air in the energy storage water tank 1 is discharged, when the liquid level reaches the designed height, the water injection is stopped, the nitrogen tank of the nitrogen charging system 7 is opened, nitrogen is charged from the top of the energy storage water tank 1, and the air above the water surface is discharged out of the energy storage water tank 1 through the breather valve 8, so that the working condition that the high-efficiency energy storage water tank 100 capable of uniformly distributing water keeps micro positive pressure in use is ensured, and the high-efficiency energy storage water tank 100 capable of uniformly distributing water is prevented from being corroded in the high-temperature water.
The high-efficiency energy storage water tank 100 capable of uniformly distributing water comprises a heat charging process and a heat discharging process, wherein in the heat charging process, high-temperature water enters a central pipe 211 from a high-temperature water channel pipe 11, low-temperature water at the lower layer of an energy storage water tank 1 is discharged from a low-temperature water channel pipe 12, the high-temperature water in the water central pipe 211 is uniformly and stably sprayed into the energy storage water tank 1 through a radial water distribution main pipe 21 and each annular water distribution pipe of a water distribution pipe group 22, and the high-temperature water gradually spreads from top to bottom until the whole energy storage water tank 1 is filled with the high-temperature water.
In the heat release process, high-temperature water flows out of the high-temperature water channel pipe 11 at the upper part of the energy storage water tank 1, after the high-temperature water is cooled by heat exchange of a user and is changed into low-temperature water, the low-temperature water flows back to the energy storage water tank 1 from the low-temperature water channel pipe 12 below, the low-temperature water is uniformly and stably sprayed into the energy storage water tank 1 through the annular water distribution pipes of the radial water distribution main pipe 21 and the water distribution pipe group 22, the low-temperature water gradually and uniformly spreads from bottom to top, the stability of an inclined temperature layer is ensured, and the utilization efficiency of the energy storage water tank is improved.
Therefore, the high-efficiency energy storage water tank capable of uniformly distributing water has the following beneficial effects:
(1) In the high-efficiency energy storage water tank capable of uniformly distributing water, the annular water distribution pipes and the radial water distribution main pipes of the novel water distributor can uniformly distribute high-temperature water and low-temperature water, the water spraying flow of the annular water distribution pipes is gradually increased from the radial center close to the energy storage water tank to the radial center far away from the energy storage water tank, the water distribution amount in unit area is ensured to be the same, so that uniform injection of high-temperature water and low-temperature water in the energy storage water tank is realized, the stability of an inclined temperature layer is ensured, the utilization efficiency of the energy storage water tank is improved, and the heat supply efficiency is effectively improved; the main water distribution pipe is radially arranged, so that the reverse thrust borne by the main pipe is more uniform, the thermal stress of the main water distributor body is reduced, the overall stability of the water distributor is improved, and the strength of the energy storage water tank after being enlarged is effectively improved;
(2) The high-efficiency energy storage water tank capable of uniformly distributing water can realize the minimization of the cross-sectional area of the water tank with equal average water spraying quantity, and effectively reduce the investment and the occupied area of equipment;
(3) In the high-efficiency energy storage water tank capable of uniformly distributing water, the nozzles close to the radial center of the energy storage water tank are arranged in a necking mode, and the nozzles far away from the radial center of the energy storage water tank are arranged in a flaring mode, so that the water outlet pressure of the nozzles on the whole water distributor is consistent, and the uniform water distribution is further ensured; the static pressure of each nozzle at the same radial position of each annular water distribution pipe is the same, and the communication pipes arranged among the annular water distribution pipes can balance the radial water pressure, so that the pressure among the annular water distribution pipes is balanced, the same static pressure can increase the self-balancing capacity of the liquid level, and the uniformity of water distribution is ensured. The water distribution is uniform and stable, the stability of the inclined temperature layer can be ensured, and the original balance of the water newly entering the energy storage water tank can not be damaged, so that the utilization rate of the energy storage water tank is improved;
(4) In the high-efficiency energy storage water tank capable of uniformly distributing water, the U-shaped hooks are arranged between the water distribution pipe group communicated with the high-temperature water channel pipe and the side wall of the energy storage water tank, so that the heat displacement of the annular water distribution pipe when heated can be fully absorbed, the heat stress of the whole water distributor is released, the whole water distributor can be stably supported in the energy storage water tank, and the stability of the water distributor is improved; the horizontal or vertical pi-shaped compensation bent structures are arranged between the interfaces of the high-temperature water channel pipe and the energy storage water tank and the water distribution main pipe of the water distributor, so that the thermal displacement can be absorbed, the high-temperature water channel pipe and the low-temperature water channel pipe can be kept stable under the condition of thermal expansion, radial swaying and swaying can not be generated, and the whole water distributor is stabilized;
(5) In the high-efficiency energy storage water tank capable of uniformly distributing water, the outer side of the energy storage water tank is coated with the multi-layer heat insulation structure, so that the heat insulation performance of the energy storage water tank is enhanced, the heat loss is reduced, the original layered structure in the energy storage water tank is prevented from being damaged after the heat loss is excessive, and the utilization rate of the energy storage water tank is increased;
(6) In the high-efficiency energy storage water tank capable of uniformly distributing water, the pressure sensor is arranged at the bottom of the inner side of the energy storage water tank, so that the high-efficiency energy storage water tank is simple and convenient to install and simple and accurate to calculate.
The foregoing is illustrative of the present invention and is not to be construed as limiting the scope of the invention. Any equivalent changes and modifications can be made by those skilled in the art without departing from the spirit and principles of this invention, and are intended to be within the scope of this invention.
Claims (9)
1. The high-efficiency energy storage water tank capable of uniformly distributing water comprises an energy storage water tank, wherein the upper part of the energy storage water tank is communicated with a high-temperature water channel pipe, and the lower part of the energy storage water tank is communicated with a low-temperature water channel pipe;
setting an annular water distribution pipe close to the side wall of an energy storage water tank as a first annular water distribution pipe, setting nozzles arranged on the first annular water distribution pipe as first nozzles, setting nozzles arranged on all annular water distribution pipes positioned on the radial inner side of the first annular water distribution pipe as second nozzles, wherein the cross section area of the first nozzles is gradually reduced from an inlet to an outlet, the cross section area of the second nozzles is gradually increased from the inlet to the outlet, and the water outlet pressure of each first nozzle and each second nozzle is the same;
the water distribution pipe group communicated with the high-temperature water channel pipe is set to be a first water distribution pipe group, a buffer connection structure capable of absorbing thermal displacement of the first water distribution pipe group is arranged between the first water distribution pipe group and the side wall of the energy storage water tank, the buffer connection structure comprises a plurality of U-shaped hooks arranged at intervals along the circumferential direction, one end of each U-shaped hook is in propping connection with the outer wall of the annular water distribution pipe close to the side wall of the energy storage water tank, and the other end of each U-shaped hook is in propping connection with the side wall of the energy storage water tank.
2. The high-efficiency energy storage water tank capable of uniformly distributing water according to claim 1, wherein the low-temperature water channel pipe is communicated with the water distributor.
3. The efficient energy storage water tank capable of uniformly distributing water according to claim 1 or 2, wherein two adjacent annular water distribution pipes are radially communicated through a plurality of communication pipes which are arranged at intervals along the circumferential direction, and the communication pipes which are positioned at two radial sides of the same annular water distribution pipe are arranged in a circumferential staggered manner.
4. The efficient energy storage water tank capable of uniformly distributing water according to claim 1 or 2, wherein the pipe diameter of each annular water distribution pipe is gradually reduced from the radial center close to the energy storage water tank to the radial center far from the energy storage water tank, and the number of the nozzles on each annular water distribution pipe is gradually increased from the radial center close to the energy storage water tank to the radial center far from the energy storage water tank.
5. The efficient energy storage water tank capable of uniformly distributing water according to claim 1 or 2, wherein the radial distance between two adjacent annular water distribution pipes is gradually reduced from the radial center close to the energy storage water tank to the radial center far from the energy storage water tank.
6. The high-efficiency energy storage water tank capable of uniformly distributing water according to claim 2, wherein the water distribution main pipe comprises a central pipe, one end of the central pipe can be communicated with the high-temperature water channel pipe or the low-temperature water channel pipe, the other end of the central pipe is in a closed arrangement, a plurality of water distribution branch pipes which are arranged along the radial extension are communicated on the side wall of the central pipe, and a plurality of water distribution ports for communicating the annular water distribution pipes are arranged on each water distribution branch pipe.
7. The efficient energy storage water tank capable of uniformly distributing water according to claim 6, wherein a central pipe communicated with the high-temperature water channel pipe is connected to the top wall of the energy storage water tank in a hanging manner through a central pipe hanging rod, annular water distribution pipes communicated with the high-temperature water channel pipe are circumferentially provided with annular pipe hanging portions at intervals, annular pipe hanging portions are connected with annular pipe hanging rods, and the other ends of the annular pipe hanging rods are connected to the top wall of the energy storage water tank.
8. The high-efficiency energy storage water tank capable of uniformly distributing water according to claim 1, wherein the outer side of the energy storage water tank is coated with a multi-layer heat insulation structure.
9. The high-efficiency energy storage water tank capable of uniformly distributing water according to claim 1, wherein pressure sensors are uniformly arranged at intervals along the circumferential direction at the bottom of the inner side of the energy storage water tank.
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| CN109990647A (en) * | 2019-04-29 | 2019-07-09 | 杨易之 | Fan type water wheel type is atomized cooling device |
| CN114166054B (en) * | 2021-12-01 | 2023-05-30 | 河北建筑工程学院 | Heat storage system, method and heat supply system for improving heat storage and heat release efficiency |
| CN114166056B (en) * | 2021-12-01 | 2023-05-30 | 河北建筑工程学院 | Method for heat exchange by utilizing efficient heat storage and heat release heat storage device |
| CN114166055B (en) * | 2021-12-01 | 2023-05-30 | 河北建筑工程学院 | Heat storage water tank capable of improving heat storage and release efficiency, heat storage and release method and heat supply system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205002288U (en) * | 2015-09-22 | 2016-01-27 | 杭州华电华源环境工程有限公司 | Cylinder type energy storage equipment water distribution uniformity device |
| CN206208081U (en) * | 2016-11-03 | 2017-05-31 | 北京英沣特能源技术有限公司 | A kind of water energy storage equipment for adding orifice plate water-locator with octagonal |
| CN206300532U (en) * | 2016-12-20 | 2017-07-04 | 北京英沣特能源技术有限公司 | A kind of water energy storage equipment with umbrella shape composite water-locator |
| CN107144164A (en) * | 2017-05-02 | 2017-09-08 | 哈尔滨汽轮机厂辅机工程有限公司 | A kind of mesolimnion water tank water-distributing device |
| CN208751343U (en) * | 2018-08-08 | 2019-04-16 | 北京京诚科林环保科技有限公司 | High-efficiency energy storage water tank capable of uniformly distributing water |
-
2018
- 2018-08-08 CN CN201810894951.6A patent/CN109059593B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205002288U (en) * | 2015-09-22 | 2016-01-27 | 杭州华电华源环境工程有限公司 | Cylinder type energy storage equipment water distribution uniformity device |
| CN206208081U (en) * | 2016-11-03 | 2017-05-31 | 北京英沣特能源技术有限公司 | A kind of water energy storage equipment for adding orifice plate water-locator with octagonal |
| CN206300532U (en) * | 2016-12-20 | 2017-07-04 | 北京英沣特能源技术有限公司 | A kind of water energy storage equipment with umbrella shape composite water-locator |
| CN107144164A (en) * | 2017-05-02 | 2017-09-08 | 哈尔滨汽轮机厂辅机工程有限公司 | A kind of mesolimnion water tank water-distributing device |
| CN208751343U (en) * | 2018-08-08 | 2019-04-16 | 北京京诚科林环保科技有限公司 | High-efficiency energy storage water tank capable of uniformly distributing water |
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