CN113566631A - Octagonal water distributor structure used in large-scale heat storage water tank - Google Patents

Octagonal water distributor structure used in large-scale heat storage water tank Download PDF

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Publication number
CN113566631A
CN113566631A CN202110800100.2A CN202110800100A CN113566631A CN 113566631 A CN113566631 A CN 113566631A CN 202110800100 A CN202110800100 A CN 202110800100A CN 113566631 A CN113566631 A CN 113566631A
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CN
China
Prior art keywords
octagonal
pipe
pipes
communicated
delivery port
Prior art date
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Pending
Application number
CN202110800100.2A
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Chinese (zh)
Inventor
朱会
杨彭飞
何文兵
王凯亮
杨广春
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Huadian Engineering Group Co Ltd
Huadian Environmental Protection Engineering and Technology Co Ltd
Original Assignee
China Huadian Engineering Group Co Ltd
Huadian Environmental Protection Engineering and Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by China Huadian Engineering Group Co Ltd, Huadian Environmental Protection Engineering and Technology Co Ltd filed Critical China Huadian Engineering Group Co Ltd
Priority to CN202110800100.2A priority Critical patent/CN113566631A/en
Publication of CN113566631A publication Critical patent/CN113566631A/en
Pending legal-status Critical Current

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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

Abstract

The invention discloses an octagonal water distributor structure used in a large-scale heat storage water tank, which is positioned in the heat storage water tank and comprises a horizontally arranged main pipe, a horizontally arranged distribution pipe, a horizontally arranged communication pipe and a plurality of horizontally arranged octagonal branch pipes, wherein the octagonal branch pipes are formed by eight connecting pipes which are sequentially communicated, and the lengths of the connecting pipes of the same octagonal branch pipe are equal; the octagonal branch pipes are all positioned at the same horizontal height and are in a regular octagonal shape; one end of the main pipe is communicated with the middle part of one distribution pipe, and the other end of the main pipe is communicated with the middle part of the other distribution pipe; one end of the distribution pipe is communicated with one communicating pipe, and the other end of the distribution pipe is communicated with the other communicating pipe; the octagonal branch pipes are formed by eight connecting pipes which are sequentially connected, each octagonal branch pipe is provided with four connecting pipes which are communicated with the communicating pipes, and the communicating pipes are perpendicular to the connecting pipes communicated with the communicating pipes. The invention adopts the structure of the octagonal water distributor, and can achieve the effect of better controlling the speed and the direction of water flow.

Description

Octagonal water distributor structure used in large-scale heat storage water tank
Technical Field
The invention relates to a heat storage water tank, in particular to an octagonal water distributor structure used in a large heat storage water tank.
Background
The large-scale heat storage water tank is used as an energy storage technology with simple structure and low investment, and is applied to the thermoelectric decoupling technology of a thermal power heat supply unit. The basic principle is as follows: by utilizing the principle that cold water and hot water are different in density, the water distributor is additionally arranged in the heat storage water tank, so that cold water and hot water uniformly flow in from the tank top and the tank bottom respectively, a stable inclined temperature layer is formed at the junction of the cold water and the hot water, and the cold water and the hot water are naturally layered in the heat storage water tank, thereby finishing the storage of the hot water. In order to maintain the stable movement of the thermocline as much as possible, the water flow at the inlet and the outlet of the water distributor needs to be as uniform as possible so as to reduce the disturbance to the thermocline.
Disclosure of Invention
The invention aims to provide an octagonal water distributor structure used in a large-scale heat storage water tank, which is beneficial to the supporting design of a large-diameter water distributor and can achieve the effect of better controlling the speed and the direction of water flow.
In order to solve the technical problems, the invention adopts the following technical scheme:
an octagonal water distributor structure used in a large-scale heat storage water tank is positioned in the heat storage water tank and comprises a horizontally arranged main pipe, a horizontally arranged distribution pipe, a horizontally arranged communication pipe and a plurality of horizontally arranged octagonal branch pipes, wherein the octagonal branch pipes are formed by eight connecting pipes which are sequentially communicated, and the lengths of the connecting pipes of the same octagonal branch pipe are equal; the octagonal branch pipes are all positioned at the same horizontal height and are in a regular octagonal shape; one end of the main pipe is communicated with the middle part of one distribution pipe, and the other end of the main pipe is communicated with the middle part of the other distribution pipe; one end of the distribution pipe is communicated with one communicating pipe, and the other end of the distribution pipe is communicated with the other communicating pipe; the octagonal branch pipes are formed by eight connecting pipes which are sequentially connected, each octagonal branch pipe is provided with four connecting pipes which are communicated with the communicating pipe, and the communicating pipe is vertical to the connecting pipes communicated with the communicating pipe; two communicating pipes which communicate the same distributing pipe are mutually vertical; the lower part of the connecting pipe is provided with a plurality of water outlet groups which are uniformly distributed, each water outlet group comprises a first water outlet and a second water outlet, a 120-degree included angle is reserved between each first water outlet and each second water outlet, and each first water outlet and each second water outlet form a 30-degree included angle with the horizontal plane.
In the octagonal water distributor structure used in the large-scale heat storage water tank, the inner diameter of the heat storage water tank is 20000 mm, the number of the octagonal branch pipes is five, and the lengths of the connecting pipes of the five octagonal branch pipes from inside to outside are 3033 mm, 4293 mm, 5258 mm, 6065 mm and 6781 mm respectively; the distance between two adjacent ones of the five octagonal branched tubes from inside to outside is 1152 mm, 1163 mm, 973 mm and 865 mm respectively.
In the octagonal water distributor structure used in the large-sized heat storage water tank, the inner diameter of the connecting pipe is equal to 325 mm, and the diameters of the first water outlet and the second water outlet are both 40 mm; the distance between the adjacent water outlet groups is equal to 500 mm, and the distance between the water outlet groups and the end part of the connecting pipe is greater than or equal to 250 mm.
Compared with the prior art, the invention adopts an octagonal water distributor structure, the structure is beneficial to the supporting design of a large-diameter water distributor, and the effect of better controlling the speed and the direction of water flow can be achieved.
Moreover, the water distributor also has the following advantages:
1) on the vertical central plane of the water distributor pipeline, when water flow at the outlet of the water distributor leaves the water distributor pipeline, the water flow can be evenly distributed in the radial inner direction and the radial outer direction, the effective length of the water distributor is doubled, the Reynolds number and the Froude number are reduced by 50%, the mixing degree of the fluid is weakened, the disturbance of the water flow at the inlet and the outlet of the water distributor to an inclined temperature layer is reduced, and the heat storage efficiency is improved.
2) The pipe of the water distributor is provided with a round hole, so that the processing is convenient.
3) The pipeline is provided with the round hole, so that the stress concentration of the opening can be reduced, and the risk of pipeline fracture is reduced.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view of an embodiment of a connecting tube;
FIG. 3 is a cross-sectional view of one embodiment of a connecting tube.
Reference numerals: 1-distribution pipe, 2-mother pipe, 3-octagonal branch pipe, 4-heat storage water tank, 5-communicating pipe, 6-connecting pipe, 7-first water outlet, 8-second water outlet and 9-water outlet group.
The invention is further described with reference to the following figures and detailed description.
Detailed Description
Example 1 of the invention: an octagonal water distributor structure used in a large-scale heat storage water tank 4 is positioned in the heat storage water tank 4 and comprises a horizontally arranged main pipe 2, a horizontally arranged distribution pipe 1, a horizontally arranged communicating pipe 5 and a plurality of horizontally arranged octagonal branch pipes 3, wherein the octagonal branch pipes 3 are composed of eight connecting pipes 6 which are sequentially communicated, and the lengths of the connecting pipes 6 of the same octagonal branch pipe 3 are equal; the octagonal branch pipes 3 are all positioned at the same horizontal height, and the octagonal branch pipes 3 are all in a regular octagon shape; one end of the main pipe 2 is communicated with the middle part of one distribution pipe 1, and the other end of the main pipe 2 is communicated with the middle part of the other distribution pipe 1; one end of the distribution pipe 1 is communicated with one communicating pipe 5, and the other end of the distribution pipe 1 is communicated with the other communicating pipe 5; the octagonal branch pipes 3 are composed of eight connecting pipes 6 which are sequentially connected, each octagonal branch pipe 3 is provided with four connecting pipes 6 which are communicated with the communicating pipe 5, and the communicating pipe 5 is vertical to the connecting pipe 6 communicated with the communicating pipe; two communicating pipes 5 which communicate the same distributing pipe 1 are vertical to each other; the lower part of connecting pipe 6 has a plurality of evenly distributed's delivery port group 9, delivery port group 9 includes first delivery port 7 and second delivery port 8, leaves 120 degrees contained angles between first delivery port 7 and the second delivery port 8, and first delivery port 7 and second delivery port 8 all have 30 degrees contained angles with the horizontal plane.
Example 2: an octagonal water distributor structure used in a large-scale heat storage water tank 4 is positioned in the heat storage water tank 4 and comprises a horizontally arranged main pipe 2, a horizontally arranged distribution pipe 1, a horizontally arranged communicating pipe 5 and a plurality of horizontally arranged octagonal branch pipes 3, wherein the octagonal branch pipes 3 are composed of eight connecting pipes 6 which are sequentially communicated, and the lengths of the connecting pipes 6 of the same octagonal branch pipe 3 are equal; the octagonal branch pipes 3 are all positioned at the same horizontal height, and the octagonal branch pipes 3 are all in a regular octagon shape; one end of the main pipe 2 is communicated with the middle part of one distribution pipe 1, and the other end of the main pipe 2 is communicated with the middle part of the other distribution pipe 1; one end of the distribution pipe 1 is communicated with one communicating pipe 5, and the other end of the distribution pipe 1 is communicated with the other communicating pipe 5; the octagonal branch pipes 3 are composed of eight connecting pipes 6 which are sequentially connected, each octagonal branch pipe 3 is provided with four connecting pipes 6 which are communicated with the communicating pipe 5, and the communicating pipe 5 is vertical to the connecting pipe 6 communicated with the communicating pipe; two communicating pipes 5 which communicate the same distributing pipe 1 are vertical to each other; the lower part of connecting pipe 6 has a plurality of evenly distributed's delivery port group 9, delivery port group 9 includes first delivery port 7 and second delivery port 8, leaves 120 degrees contained angles between first delivery port 7 and the second delivery port 8, and first delivery port 7 and second delivery port 8 all have 30 degrees contained angles with the horizontal plane.
The inner diameter of the heat storage water tank 4 is 20000 millimeters, the number of the octagonal branch pipes 3 is five, and the lengths of the connecting pipes 6 of the five octagonal branch pipes 3 from inside to outside are 3033 millimeters, 4293 millimeters, 5258 millimeters, 6065 millimeters and 6781 millimeters respectively; the distance between two adjacent ones of the five octagonal branched tubes 3 from inside to outside is 1152 mm, 1163 mm, 973 mm and 865 mm respectively.
Example 3: an octagonal water distributor structure used in a large-scale heat storage water tank 4 is positioned in the heat storage water tank 4 and comprises a horizontally arranged main pipe 2, a horizontally arranged distribution pipe 1, a horizontally arranged communicating pipe 5 and a plurality of horizontally arranged octagonal branch pipes 3, wherein the octagonal branch pipes 3 are composed of eight connecting pipes 6 which are sequentially communicated, and the lengths of the connecting pipes 6 of the same octagonal branch pipe 3 are equal; the octagonal branch pipes 3 are all positioned at the same horizontal height, and the octagonal branch pipes 3 are all in a regular octagon shape; one end of the main pipe 2 is communicated with the middle part of one distribution pipe 1, and the other end of the main pipe 2 is communicated with the middle part of the other distribution pipe 1; one end of the distribution pipe 1 is communicated with one communicating pipe 5, and the other end of the distribution pipe 1 is communicated with the other communicating pipe 5; the octagonal branch pipes 3 are composed of eight connecting pipes 6 which are sequentially connected, each octagonal branch pipe 3 is provided with four connecting pipes 6 which are communicated with the communicating pipe 5, and the communicating pipe 5 is vertical to the connecting pipe 6 communicated with the communicating pipe; two communicating pipes 5 which communicate the same distributing pipe 1 are vertical to each other; the lower part of connecting pipe 6 has a plurality of evenly distributed's delivery port group 9, delivery port group 9 includes first delivery port 7 and second delivery port 8, leaves 120 degrees contained angles between first delivery port 7 and the second delivery port 8, and first delivery port 7 and second delivery port 8 all have 30 degrees contained angles with the horizontal plane.
The inner diameter of the heat storage water tank 4 is 20000 millimeters, the number of the octagonal branch pipes 3 is five, and the lengths of the connecting pipes 6 of the five octagonal branch pipes 3 from inside to outside are 3033 millimeters, 4293 millimeters, 5258 millimeters, 6065 millimeters and 6781 millimeters respectively; the distance between two adjacent ones of the five octagonal branched tubes 3 from inside to outside is 1152 mm, 1163 mm, 973 mm and 865 mm respectively.
The inner diameter of the connecting pipe 6 is equal to 325 mm, and the diameters of the first water outlet 7 and the second water outlet 8 are both 40 mm; the distance between the adjacent water outlet groups 9 is equal to 500 mm, and the distance between the water outlet groups 9 and the end part of the connecting pipe 6 is greater than or equal to 250 mm.
The working principle of one embodiment of the invention is as follows: the height and the diameter of the large-scale heat storage water tank are usually more than 20m, a direct radial or straight pipe water distribution device is not suitable to be adopted, the water distributor adopts an octagonal water distributor structure, the structure is beneficial to the support design of a large-diameter water distributor, and the effect of better controlling the water flow speed and direction can be achieved. The octagonal water distributor structure comprises a main pipe, distribution pipes, octagonal branch pipes and supports, wherein water flowing into the main pipe is carried into each octagonal branch pipe through the 4 distribution pipes, and then is sprayed into the storage tank through the openings in the branch pipes. The Froude number of the water distributor is less than 2, the Reynolds number is less than 2000, the laminar flow characteristic of an outlet can be ensured, and the inclined temperature layer structure is prevented from being disturbed. The orifice flow rate is as low as possible to ensure minimal disturbance to the thermocline.

Claims (3)

1. An octagonal water distributor structure used in a large-scale heat storage water tank (4) is positioned in the heat storage water tank (4), and is characterized by comprising a horizontally arranged main pipe (2), a horizontally arranged distribution pipe (1), a horizontally arranged communicating pipe (5) and a plurality of horizontally arranged octagonal branch pipes (3), wherein the octagonal branch pipes (3) are formed by eight connecting pipes (6) which are sequentially communicated, and the connecting pipes (6) of the same octagonal branch pipe (3) are equal in length; the octagonal branch pipes (3) are all positioned at the same horizontal height, and the octagonal branch pipes (3) are all in a regular octagon shape; one end of the main pipe (2) is communicated with the middle part of one distribution pipe (1), and the other end of the main pipe (2) is communicated with the middle part of the other distribution pipe (1); one end of the distribution pipe (1) is communicated with one communicating pipe (5), and the other end of the distribution pipe (1) is communicated with the other communicating pipe (5); the octagonal branch pipes (3) are composed of eight connecting pipes (6) which are sequentially connected, each octagonal branch pipe (3) is provided with four connecting pipes (6) which are communicated with the communicating pipe (5), and the communicating pipe (5) is vertical to the connecting pipes (6) communicated with the communicating pipe; two communicating pipes (5) communicated with the same distribution pipe (1) are vertical to each other; the lower part of connecting pipe (6) has a plurality of evenly distributed's delivery port group (9), delivery port group (9) are including first delivery port (7) and second delivery port (8), leave 120 degrees contained angles between first delivery port (7) and second delivery port (8), and first delivery port (7) and second delivery port (8) all have 30 degrees contained angles with the horizontal plane.
2. The octagonal water distributor structure used in a large-scale heat-accumulating water tank (4) according to claim 1, wherein the inside diameter of the heat-accumulating water tank (4) is 20000 mm, the number of the octagonal branch pipes (3) is five, and the lengths of the connecting pipes (6) of the five octagonal branch pipes (3) from inside to outside are 3033 mm, 4293 mm, 5258 mm, 6065 mm and 6781 mm; the distance between two adjacent ones of the five octagonal branch pipes (3) from inside to outside is 1152 mm, 1163 mm, 973 mm and 865 mm respectively.
3. The octagonal water distributor structure used in a large hot water storage tank (4) according to claim 1, wherein the inner diameter of the connecting pipe (6) is 325 mm, and the diameters of the first water outlet (7) and the second water outlet (8) are 40 mm; the distance between the adjacent water outlet groups (9) is equal to 500 mm, and the distance between the water outlet groups (9) and the end part of the connecting pipe (6) is greater than or equal to 250 mm.
CN202110800100.2A 2021-07-13 2021-07-13 Octagonal water distributor structure used in large-scale heat storage water tank Pending CN113566631A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110800100.2A CN113566631A (en) 2021-07-13 2021-07-13 Octagonal water distributor structure used in large-scale heat storage water tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110800100.2A CN113566631A (en) 2021-07-13 2021-07-13 Octagonal water distributor structure used in large-scale heat storage water tank

Publications (1)

Publication Number Publication Date
CN113566631A true CN113566631A (en) 2021-10-29

Family

ID=78164908

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110800100.2A Pending CN113566631A (en) 2021-07-13 2021-07-13 Octagonal water distributor structure used in large-scale heat storage water tank

Country Status (1)

Country Link
CN (1) CN113566631A (en)

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