CN112627129B - Pressure regulating chamber device for hydropower station - Google Patents

Pressure regulating chamber device for hydropower station Download PDF

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Publication number
CN112627129B
CN112627129B CN202011631981.1A CN202011631981A CN112627129B CN 112627129 B CN112627129 B CN 112627129B CN 202011631981 A CN202011631981 A CN 202011631981A CN 112627129 B CN112627129 B CN 112627129B
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Prior art keywords
branch pipe
pressure regulating
regulating chamber
pipe
pressure
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CN202011631981.1A
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CN112627129A (en
Inventor
侯占强
王伟
黄兴豹
赵志峰
刘冲
张贝宜
胡心勇
王桂玉
李国兴
徐康舒
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Second Engineering Bureau Of Henan Water Conservancy
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Second Engineering Bureau Of Henan Water Conservancy
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
    • E02B9/02—Water-ways
    • E02B9/06—Pressure galleries or pressure conduits; Galleries specially adapted to house pressure conduits; Means specially adapted for use therewith, e.g. housings, valves, gates
    • 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
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Pipe Accessories (AREA)

Abstract

The invention provides a pressure regulating chamber device for a hydropower station, which is characterized in that the stress performance of the pressure regulating chamber is improved by arranging a left support rod and a right support rod, a left branch pipe and a right branch pipe are arranged, so that the effective buffering of a pressure regulating chamber structure and a pressure pipeline is realized, the water hammer pressure is reduced, protruding sections are arranged in the left branch pipe and the right branch pipe, and a plurality of vertical plates are respectively arranged in the left branch pipe and the right branch pipe, so that the effective buffering of the water hammer pressure is realized, the pressure regulating and stabilizing performance of the pressure regulating chamber is further improved, the structure is simple, the construction is easy, and the working performance of the pressure regulating chamber can be obviously improved.

Description

Pressure regulating chamber device for hydropower station
Technical Field
The invention relates to the field of hydraulic engineering, in particular to a pressure regulating chamber device for a hydropower station.
Background
The pressure regulating chamber structure is a pressure regulating and stabilizing device commonly used in a hydropower station, and because a pressure pipeline of the hydropower station is long, once a unit is stopped emergently or the opening degree is reduced suddenly, certain water attack pressure is easily generated in the pressure pipeline, and when the water attack pressure exceeds the allowable stress of the pressure pipeline of the hydropower station, the pressure pipeline is damaged, so that potential safety hazards are caused.
When current control power station pipeline under pressure water hammer pressure, adopt extension unit to close the time of opening and stopping more to increase pipeline under pressure intensity etc. and surge chamber structure is the important engineering measure who effectively reduces water hammer pressure, but general surge chamber directly adopts the connecting pipe to be connected with pipeline under pressure, and its energy dissipation effect is general, and water hammer pressure can not in time consume, and great water hammer pressure still can influence structure safety.
Disclosure of Invention
The invention provides a pressure regulating chamber device for a hydropower station, aiming at the problems in the prior art.
The invention provides a pressure regulating chamber device for a hydropower station, wherein the hydropower station is provided with a pressure pipeline, the pressure pipeline is provided with a pressure regulating chamber, the pressure regulating chamber is connected with the pressure pipeline through a first connecting pipe, the pressure pipeline is provided with a left supporting rod and a right supporting rod, the left supporting rod is positioned on the left side of the pressure regulating chamber, the right supporting rod is positioned on the right side of the pressure regulating chamber, the lower end of the left supporting rod is fixedly connected with the pressure pipeline, the upper end of the left supporting rod is fixedly connected with the pressure regulating chamber, the lower end of the right supporting rod is fixedly connected with the pressure pipeline, the upper end of the right supporting rod is fixedly connected with the pressure regulating chamber, and the joint of the upper end of the left supporting rod and the pressure regulating chamber is higher than the joint of the upper end of the right supporting rod and the pressure regulating chamber, so that an asymmetric supporting system is formed and the supporting effect is improved; a left branch pipe and a right branch pipe are sequentially arranged on the first connecting pipe along the height direction, wherein the left branch pipe is positioned on the left side of the first connecting pipe, the right branch pipe is positioned on the right side of the first connecting pipe, the left branch pipe is positioned above the right branch pipe and is positioned below the pressure regulating chamber, the left branch pipe is connected with the pressure pipeline through a left support column, the lower end of the left support column is fixedly connected with the pressure pipeline, the upper end of the left support column is fixedly connected with the left branch pipe, the right branch pipe is connected with the pressure pipeline through a right support column, the lower end of the right support column is fixedly connected with the pressure pipeline, the upper end of the right support column is fixedly connected with the right branch pipe, a second connecting pipe is arranged between the left end of the left branch pipe and the left side wall of the pressure regulating chamber, and the upper end of the second connecting pipe is connected with the left side wall of the pressure regulating chamber, the lower end of the second connecting pipe is connected with the left end of the left branch pipe; a third connecting pipe is arranged between the right end of the right branch pipe and the right side wall of the pressure regulating chamber, the upper end of the third connecting pipe is connected with the right side wall of the pressure regulating chamber, and the lower end of the third connecting pipe is connected with the right end of the right branch pipe; the left branch pipe comprises a left first straight section, a left convex section and a left second straight section, the left second straight section is located at the left end of the left branch pipe, the left convex section comprises a left upper convex section and a left lower convex section, a left first vertical plate is arranged on the lower pipe wall of the left first straight section, a left second vertical plate is arranged on the pipe wall of the left upper convex section, a left third vertical plate is arranged on the pipe wall of the left lower convex section, a left fourth vertical plate is arranged on the upper pipe wall of the left second straight section, and the left first vertical plate, the left second vertical plate, the left third vertical plate and the left fourth vertical plate form a resistance system of the left branch pipe so as to consume energy for water flow entering the left branch pipe; the right branch pipe includes the flat straight section of right side first, the protruding section in the right side and the flat straight section in the right side, the flat straight section in the right side is located the right-hand member of right branch pipe, the protruding section in the right side includes protruding section and the protruding section down in the right side, be provided with right riser on the last pipe wall of the first straight section in the right side, be provided with right second riser on the pipe wall of the protruding section in the right side, be provided with right third riser on the pipe wall of the protruding section down in the right side, be provided with right fourth riser on the lower pipe wall of the flat straight section in the right side, right first riser, right second riser, right third riser and right fourth riser constitute the resistance system of right branch pipe to carry out the power consumption to the rivers that get into in the right branch pipe.
Preferably, the pressure pipeline is a reinforced concrete pipeline, the surge chamber is of a reinforced concrete structure, the first connecting pipe is of a reinforced concrete structure, connecting reinforcing steel bars are arranged in the first connecting pipe, the connecting reinforcing steel bars extend into the pressure pipeline structure and are connected with reinforcing steel bars in the pressure pipeline, and the connecting reinforcing steel bars extend into the surge chamber structure and are connected with reinforcing steel bars in the surge chamber.
Preferably, the left branch pipe and the right branch pipe are both of reinforced concrete structures, and the left support pillar and the right support pillar are both of steel structures.
The working principle of the invention is as follows:
by arranging the left supporting rod and the right supporting rod and utilizing an unbalanced structural system, the structural stress performance is improved, and the pressure regulating chamber is prevented from being structurally unstable; the left branch pipe and the right branch pipe are arranged in the traditional connection, so that when a water body flows through the connecting pipe, the volume of the buffer pipe body is increased, and the overlarge local pressure is avoided; the left branch pipe and the right branch pipe are respectively provided with a plurality of vertical plates, so that the water flow energy is further weakened, the buffering effect on the water attack pressure is achieved, and the water attack pressure is effectively reduced; set up second connecting pipe and third connecting pipe, connect surge-chamber and left branch pipe, right branch pipe respectively, utilize the UNICOM's ware principle of second connecting pipe, third connecting pipe, realize the whole stress balance of structure, further improve the buffering pressure regulating effect in surge-chamber.
The invention has the advantages that:
through setting up left branch vaulting pole and right branch vaulting pole, improve the atress performance of surge-chamber, set up left branch pipe and right branch pipe, realize surge-chamber structure and pipeline under pressure's effective buffering, reduce water hammer pressure, all be provided with protruding section in left branch pipe and the right branch pipe, and set up a plurality of risers respectively in left branch pipe and right branch pipe, realize the effective buffering to water hammer pressure, further improve the pressure regulating steady voltage performance of surge-chamber, the steam generator is simple in structure, and easy construction can show the working property who improves the surge-chamber.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a left leg and a right leg arrangement;
FIG. 3 is a schematic view of a left leg arrangement;
fig. 4 is a schematic view of a right branch pipe arrangement.
The specific implementation mode is as follows: the structure defined in the present invention will be explained in detail with reference to the drawings attached to the specification.
The invention provides a pressure regulating chamber 2 device for a hydropower station, wherein the hydropower station is provided with a pressure pipeline 1, the pressure regulating chamber 2 is arranged on the pressure pipeline 1, the pressure regulating chamber 2 is connected with the pressure pipeline 1 through a first connecting pipe 3, a left support rod 4 and a right support rod 5 are arranged on the pressure pipeline 1, the left support rod 4 is positioned on the left side of the pressure regulating chamber 2, the right support rod 5 is positioned on the right side of the pressure regulating chamber 2, the lower end of the left support rod 4 is fixedly connected with the pressure pipeline 1, the upper end of the left support rod 4 is fixedly connected with the pressure regulating chamber 2, the lower end of the right support rod 5 is fixedly connected with the pressure pipeline 1, the upper end of the right support rod 5 is fixedly connected with the pressure regulating chamber 2, the joint of the upper end of the left support rod 4 and the pressure regulating chamber 2 is higher than the joint of the upper end of the right support rod 5 and the pressure regulating chamber 2, so as to form an asymmetric supporting system, the supporting effect is improved; a left branch pipe 6 and a right branch pipe 7 are sequentially arranged on the first connecting pipe 3 along the height direction, wherein the left branch pipe 6 is positioned at the left side of the first connecting pipe 3, the right branch pipe 7 is positioned at the right side of the first connecting pipe 3, the left branch pipe 6 is positioned above the right branch pipe 7 and is positioned below the pressure regulating chamber 2, the left branch pipe 6 is connected with the pressure pipeline 1 through a left support pillar 8, the lower end of the left support pillar 8 is fixedly connected with the pressure pipeline 1, the upper end of the left support pillar 8 is fixedly connected with the left branch pipe 6, the right branch pipe 7 is connected with the pressure pipeline 1 through a right support pillar 9, the lower end of the right support pillar 9 is fixedly connected with the pressure pipeline 1, the upper end of the right support pillar 9 is fixedly connected with the right branch pipe 7, a second connecting pipe 10 is arranged between the left end of the left branch pipe 6 and the left side wall of the pressure regulating chamber 2, the upper end of the second connecting pipe 10 is connected with the left side wall of the surge chamber 2, and the lower end of the second connecting pipe 10 is connected with the left end of the left branch pipe 6; a third connecting pipe 11 is arranged between the right end of the right branch pipe 7 and the right side wall of the pressure regulating chamber 2, the upper end of the third connecting pipe 11 is connected with the right side wall of the pressure regulating chamber 2, and the lower end of the third connecting pipe 11 is connected with the right end of the right branch pipe 7; the left branch pipe 6 comprises a left first straight section, a left convex section and a left second straight section, the left second straight section is located at the left end of the left branch pipe 6, the left convex section comprises a left upper convex section and a left lower convex section, a left first vertical plate 61 is arranged on the lower pipe wall of the left first straight section, a left second vertical plate 62 is arranged on the pipe wall of the left upper convex section, a left third vertical plate 63 is arranged on the pipe wall of the left lower convex section, a left fourth vertical plate 64 is arranged on the upper pipe wall of the left second straight section, and the left first vertical plate 61, the left second vertical plate 62, the left third vertical plate 63 and the left fourth vertical plate 64 form a resistance system of the left branch pipe 6 so as to consume energy for water flow entering the left branch pipe 6; the right branch pipe 7 comprises a right first straight section, a right protruding section and a right second straight section, the right second straight section is located at the right end of the right branch pipe 7, the right protruding section comprises a right upper protruding section and a right lower protruding section, a right first vertical plate 74 is arranged on the upper pipe wall of the right first straight section, a right second vertical plate 72 is arranged on the pipe wall of the right upper protruding section, a right third vertical plate 73 is arranged on the pipe wall of the right lower protruding section, a right fourth vertical plate 71 is arranged on the lower pipe wall of the right second straight section, and the right first vertical plate 74, the right second vertical plate 72, the right third vertical plate 73 and the right fourth vertical plate 71 form a resistance system of the right branch pipe 7 so as to consume energy for water flow entering the right branch pipe 7.
Preferably, the pressure pipeline 1 is a reinforced concrete pipeline, the pressure regulating chamber 2 is a reinforced concrete structure, the first connecting pipe 3 is a reinforced concrete structure, connecting reinforcing steel bars are arranged in the first connecting pipe 3, the connecting reinforcing steel bars extend into the structure of the pressure pipeline 1 and are connected with reinforcing steel bars in the pressure regulating chamber 1, and the connecting reinforcing steel bars extend into the structure of the pressure regulating chamber 2 and are connected with reinforcing steel bars in the pressure regulating chamber 2.
Preferably, the left branch pipe 6 and the right branch pipe 7 are both of a reinforced concrete structure, and the left support pillar 8 and the right support pillar 9 are both of a steel structure.
The above-described embodiments are only preferred embodiments of the present invention, and the scope of the present invention should not be construed as being limited to the specific forms set forth in the examples, but also includes equivalent technical means which can be conceived by those skilled in the art from the present inventive concept.

Claims (3)

1. A pressure regulating chamber device for a hydropower station is provided with a pressure pipeline, wherein the pressure pipeline is provided with a pressure regulating chamber, the pressure regulating chamber is connected with the pressure pipeline through a first connecting pipe, the pressure pipeline is provided with a left supporting rod and a right supporting rod, the left supporting rod is positioned on the left side of the pressure regulating chamber, the right supporting rod is positioned on the right side of the pressure regulating chamber, the lower end of the left supporting rod is fixedly connected with the pressure pipeline, the upper end of the left supporting rod is fixedly connected with the pressure regulating chamber, the lower end of the right supporting rod is fixedly connected with the pressure pipeline, the upper end of the right supporting rod is fixedly connected with the pressure regulating chamber, and the joint of the upper end of the left supporting rod and the pressure regulating chamber is higher than the joint of the upper end of the right supporting rod and the pressure regulating chamber, so that an asymmetric supporting system is formed and the supporting effect is improved; a left branch pipe and a right branch pipe are sequentially arranged on the first connecting pipe along the height direction, wherein the left branch pipe is positioned on the left side of the first connecting pipe, the right branch pipe is positioned on the right side of the first connecting pipe, the left branch pipe is positioned above the right branch pipe and is positioned below the pressure regulating chamber, the left branch pipe is connected with the pressure pipeline through a left support column, the lower end of the left support column is fixedly connected with the pressure pipeline, the upper end of the left support column is fixedly connected with the left branch pipe, the right branch pipe is connected with the pressure pipeline through a right support column, the lower end of the right support column is fixedly connected with the pressure pipeline, the upper end of the right support column is fixedly connected with the right branch pipe, a second connecting pipe is arranged between the left end of the left branch pipe and the left side wall of the pressure regulating chamber, and the upper end of the second connecting pipe is connected with the left side wall of the pressure regulating chamber, the lower end of the second connecting pipe is connected with the left end of the left branch pipe; a third connecting pipe is arranged between the right end of the right branch pipe and the right side wall of the pressure regulating chamber, the upper end of the third connecting pipe is connected with the right side wall of the pressure regulating chamber, and the lower end of the third connecting pipe is connected with the right end of the right branch pipe; the left branch pipe comprises a left first straight section, a left convex section and a left second straight section, the left second straight section is located at the left end of the left branch pipe, the left convex section comprises a left upper convex section and a left lower convex section, a left first vertical plate is arranged on the lower pipe wall of the left first straight section, a left second vertical plate is arranged on the pipe wall of the left upper convex section, a left third vertical plate is arranged on the pipe wall of the left lower convex section, a left fourth vertical plate is arranged on the upper pipe wall of the left second straight section, and the left first vertical plate, the left second vertical plate, the left third vertical plate and the left fourth vertical plate form a resistance system of the left branch pipe so as to consume energy for water flow entering the left branch pipe; the right branch pipe includes the flat straight section of right side first, the protruding section in the right side and the flat straight section in the right side, the flat straight section in the right side is located the right-hand member of right branch pipe, the protruding section in the right side includes protruding section and the protruding section down in the right side, be provided with right riser on the last pipe wall of the first straight section in the right side, be provided with right second riser on the pipe wall of the protruding section in the right side, be provided with right third riser on the pipe wall of the protruding section down in the right side, be provided with right fourth riser on the lower pipe wall of the flat straight section in the right side, right first riser, right second riser, right third riser and right fourth riser constitute the resistance system of right branch pipe to carry out the power consumption to the rivers that get into in the right branch pipe.
2. The surge tank apparatus for a hydroelectric power station as defined in claim 1, wherein: the pressure pipeline is a reinforced concrete pipeline, the pressure regulating chamber is of a reinforced concrete structure, the first connecting pipe is of a reinforced concrete structure, connecting reinforcing steel bars are arranged in the first connecting pipe, the connecting reinforcing steel bars penetrate into the pressure pipeline structure and are connected with reinforcing steel bars in the pressure regulating chamber, and the connecting reinforcing steel bars penetrate into the pressure regulating chamber structure and are connected with reinforcing steel bars in the pressure regulating chamber.
3. The surge tank apparatus for a hydroelectric power station as defined in claim 1, wherein: the left branch pipe and the right branch pipe are both of reinforced concrete structures, and the left supporting column and the right supporting column are both of steel structures.
CN202011631981.1A 2020-12-31 2020-12-31 Pressure regulating chamber device for hydropower station Active CN112627129B (en)

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Application Number Priority Date Filing Date Title
CN202011631981.1A CN112627129B (en) 2020-12-31 2020-12-31 Pressure regulating chamber device for hydropower station

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Application Number Priority Date Filing Date Title
CN202011631981.1A CN112627129B (en) 2020-12-31 2020-12-31 Pressure regulating chamber device for hydropower station

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CN112627129A CN112627129A (en) 2021-04-09
CN112627129B true CN112627129B (en) 2022-01-04

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113307450B (en) * 2021-05-27 2023-04-18 公安县佳源水务有限公司 Diversion system in sewage treatment system

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100462505C (en) * 2006-12-28 2009-02-18 吴昊 Hydroelectric station voltage regulating room structure
CN101126233B (en) * 2007-08-17 2010-07-21 黄河勘测规划设计有限公司 Complex impedance type hydraulic power plant surge-chamber structure
CN201738288U (en) * 2010-07-20 2011-02-09 中国农业大学 Double-chamber type surge chamber
CN102644261B (en) * 2012-05-02 2014-10-22 黄河勘测规划设计有限公司 Surge shaft construction method combining impedance with overflow
CN104929087B (en) * 2015-06-22 2017-01-18 西华大学 Damping impedance type pressure regulating device
CN105256776A (en) * 2015-11-09 2016-01-20 三峡大学 Water bag type water diversion pressure adjustment chamber
CN205400987U (en) * 2016-03-01 2016-07-27 三峡大学科技学院 Hydroenergy consumable formula surge -chamber
CN109440743B (en) * 2018-12-12 2023-12-15 中国电建集团华东勘测设计研究院有限公司 Pressure regulating chamber device capable of controlling impedance hole area, system and control method
CN109763465B (en) * 2019-03-12 2020-07-24 河南省水利第二工程局 Pressure regulating device for pressure pipeline of hydropower station
CN110131514B (en) * 2019-06-18 2024-10-15 西华大学 Pressure pipeline decompression energy dissipation system
CN210507344U (en) * 2019-07-12 2020-05-12 河南郑大水利科技有限公司 Series-type surge-chamber for hydropower station

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