CN111910590A - Anti-freezing and dredging gate and anti-freezing dredging method - Google Patents
Anti-freezing and dredging gate and anti-freezing dredging method Download PDFInfo
- Publication number
- CN111910590A CN111910590A CN202010829390.9A CN202010829390A CN111910590A CN 111910590 A CN111910590 A CN 111910590A CN 202010829390 A CN202010829390 A CN 202010829390A CN 111910590 A CN111910590 A CN 111910590A
- Authority
- CN
- China
- Prior art keywords
- gate
- pressure pipe
- pressure
- pipe
- water
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000007710 freezing Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 61
- 239000008236 heating water Substances 0.000 claims description 41
- 238000005485 electric heating Methods 0.000 claims description 39
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000005338 heat storage Methods 0.000 claims description 6
- 230000008014 freezing Effects 0.000 claims description 5
- 238000005553 drilling Methods 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000001363 water suppression through gradient tailored excitation Methods 0.000 description 2
- 208000001034 Frostbite Diseases 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/26—Vertical-lift gates
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/02—Sediment base gates; Sand sluices; Structures for retaining arresting waterborne material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/04—Valves, slides, or the like; Arrangements therefor; Submerged sluice gates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
- F24H1/185—Water-storage heaters using electric energy supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Civil Engineering (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention discloses an anti-freezing and desilting gate and an anti-freezing and desilting method, belonging to the field of hydraulic engineering. The problem of the gate easily freeze in the gate groove, silt piles up at the gate bottom easily, makes the gate difficult to open is solved.
Description
Technical Field
The invention relates to an anti-freezing and dredging gate and an anti-freezing dredging method, belonging to the field of hydraulic engineering.
Background
The water gate is a hydraulic structure built in a river channel, a canal, a lake or a sea, and the flow and the water level are controlled by the water gate. When the gate is closed, the gate can block flood, block tide, store water and raise the upstream water level so as to meet the requirement of upstream water taking or navigation; when the gate is opened, the device can discharge flood, drain waterlogging, flush sand, take water or adjust the flow according to the requirement of downstream water. The sluice is widely applied in hydraulic engineering, but in places where partial sluice is built, water contains a lot of silt and is easy to deposit at the bottom of the upstream of the sluice; in some areas, the gate is easy to freeze in the gate slot due to the influence of air temperature in winter. These reasons can all lead to the gate to be difficult to open, if can not handle in time, will seriously influence the normal use of gate.
Disclosure of Invention
The invention provides an anti-freezing and dredging gate and an anti-freezing and dredging method, which solve the problems that silt is easy to accumulate at the bottom of the gate of a water retaining structure in an area containing more silt and silt in water, and the gate is difficult to open due to low air temperature in winter, and can also reduce the annual maintenance cost of the gate.
The technical scheme of the invention is as follows: a gate with anti-freezing and desilting functions comprises a water inlet pipe, a gate valve, an electric heating water storage tank, a pressure pump and a gate pressure pipe system;
one end of the electric heating water storage tank is communicated with a water inlet pipe with a gate valve, the other end of the electric heating water storage tank is communicated with a pressure pump through a pressure pipe, the electric heating water storage tank is used for heating circulating reflux water, and the electric heating water storage tank and the pressure pump are respectively communicated with a gate pressure pipe system.
The gate pressure pipe system comprises a pressure pipe I, a pressure hose, a pressure pipe II, a pressure pipe III, a pressure pipe IV, a pressure pipe V, an open pore pressure pipe and a pressure pipe VI;
one end of the electric heating water storage tank is communicated with a water inlet pipe with a gate valve, the other end of the electric heating water storage tank is communicated with a pressure pump through a pressure pipe, the electric heating water storage tank is used for heating water in a water tank during desilting work, the top of the electric heating water storage tank is communicated with one end of a pressure pipe VI, the other end of the pressure pipe VI is communicated with one end of a pressure hose, the pressure pump is communicated with the pressure hose through a pressure pipe I, the pressure pipe II is arranged in the four corners of the gate, the pressure hose is communicated with a pressure pipe II, the pressure pipe III is embedded in the surface of the gate and is respectively arranged at the four corners where the gate and the side wall intersect, the pressure pipe II and the pressure pipe III at the four corners are communicated with the inner and the outer pressure pipes through a pressure pipe V arranged at the bottom in the gate, the pressure pipe IV, the trompil manometer pipe inlays cloth in the bottom of gate upstream face, and the one end and the manometer pipe II intercommunication of trompil manometer pipe, the other end seal.
The pressure hose may be a corrugated metal hose. The pressure hose is used as a bridge for connecting the gate pipeline system, the electric heating water storage tank and the pressure pump and can move up and down along with the opening and closing of the gate.
The bottom of pressure pipe II is equipped with the automatic gate valve that is used for converting the pipeline that rivers flowed through, installs in gate right side pressure pipe II and pressure pipe V intersection point department for the path of a journey of control high-pressure rivers realizes the function conversion that the gate prevents frostbite and desilting.
The total number of the pressure pipes II 7 is 4, and the total number of the pressure pipes III is four.
And the pressure pipe IV is used for realizing the connection of all the pressure pipes at the left end and the right end of the gate.
The perforated pressure pipe is provided with more than one drilled hole.
The diameter of the drill holes is 3-5 mm, the distance between the drill holes is 50mm, and the drill holes are uniformly distributed.
The gate and each pressure pipe are made of steel.
The utility model provides an electric heat storage water tank's bottom is passed through the pressure pipe and is connected with the force pump right-hand member, the left end of force pump passes through pressure pipe I and pressure hose intercommunication, pressure hose and the inside pressure pipe II intercommunication of gate, bottom at pressure pipe II, be equipped with automatic gate valve, a pipeline for the conversion rivers are flowed through, the left end of automatic gate valve is linked together through pressure pipe V and the bottom of laying in the pressure pipe III on gate surface, the terminal trompil pressure pipe intercommunication that has drilling of pressure pipe II, the top of pressure pipe III links to each other with the right-hand member of the pressure pipe IV of transverse arrangement at the gate top. The pipelines arranged on the surface and inside the gate are mutually connected end to form a pipeline circulation system of the gate, and the tail end of the pipeline circulation system is communicated with the top of the electric heating water storage tank through a pressure hose and a pressure pipe VI.
An anti-freezing dredging method for an anti-freezing and dredging gate comprises the following specific steps:
(1) when the gate valve is in anti-freezing work, water flow enters the electric heating water storage tank through the water inlet pipe, the water subjected to heating treatment is pressurized by the pressure pump and slowly flows through the gate pressure pipe system, finally, the water flow flows back to the electric heating water storage tank to complete one-time circulation, and therefore, the gate valve and the water around the gate groove are prevented from freezing due to over-low temperature, and the gate valve is prevented from being frozen.
(2) Desilting during operation, automatic gate valve conversion scouring pipeline gets into operating condition, and at this moment, the electric heat storage water tank does not heat up water and handles, and the force pump need come water to the electric heat storage water tank and carry out high-pressure treatment, and rivers are carried to the trompil pressure pipe through pressure pipe I, hose under pressure and pressure pipe II, and the drilling that finally goes up evenly distributed from the trompil pressure pipe is gushed at a high speed and is gone out, strikes gate bottom silt.
The invention has the beneficial effects that:
(1) the invention has simple structure, easy operation and strong applicability in areas with poor water quality in riverways of water retaining buildings.
(2) The invention solves the problem that silt is easy to accumulate at the bottom of the gate, so that the gate is difficult to open, and reduces the annual maintenance cost of the gate.
(3) The invention solves the problem that the gate is easy to freeze in the gate slot in winter in partial areas, so that the gate is difficult to open.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic diagram of the antifreeze operation of the present invention;
FIG. 4 is a schematic view of the sludging operation of the present invention;
the reference numbers in the figures are: 1-water inlet pipe, 2-gate valve, 3-electric heating water storage tank, 4-pressure pump, 5-pressure pipe I, 6-pressure hose, 7-pressure pipe II, 8-automatic gate valve, 9-pressure pipe III, 10-pressure pipe IV, 11-pressure pipe V, 12-perforated pressure pipe, 13-drilled hole, 14-pressure pipe VI, 15-gate and 16-gate groove.
Detailed Description
The invention will be further described with reference to the following figures and examples, without however restricting the scope of the invention thereto.
Example 1: as shown in figures 1-2, an anti-freezing and desilting gate structure comprises a water inlet pipe 1, a gate valve 2, an electric heating water storage tank 3, a pressure pump 4 and a gate pressure pipe system; one end of the electric heating water storage tank 3 is communicated with a water inlet pipe 1 with a gate valve 2, the other end of the electric heating water storage tank is communicated with a pressure pump 4 through a pressure pipe, the electric heating water storage tank 3 is used for heating circulating reflux water, and the electric heating water storage tank 3 and the pressure pump 4 are respectively communicated with a gate pressure pipe system.
The gate pressure pipe system comprises a pressure pipe I5, a pressure hose 6, a pressure pipe II 7, an automatic gate valve 8, a pressure pipe III 9, a pressure pipe IV 10, a pressure pipe V11, a perforated pressure pipe 12, a drill hole 13, a pressure pipe VI 14 and a gate 15;
The concrete structure is as follows: one end of an electric heating water storage tank 3 is communicated with a water inlet pipe 1 with a gate valve 2, the other end of the electric heating water storage tank is communicated with a pressure pump 4 through a pressure pipe, the electric heating water storage tank 3 is used for heating up water circulated and returned, the top of the electric heating water storage tank 3 is communicated with one end of a pressure pipe VI 14, the other end of the pressure pipe VI 14 is communicated with one end of a pressure hose 6, the pressure pump 4 is communicated with the pressure hose 6 through a pressure pipe I5, the pressure pipe II 7 is arranged in the four corners of a gate 15, the pressure hose 6 is communicated with the pressure pipe II 7, the pressure hose 6 moves up and down along with the opening and closing of the gate 15, the pressure pipe III 9 is embedded in the surface of the gate 15 and is respectively arranged at the four corners intersected with the side wall, the pressure pipe II 7 and the pressure pipe III 9 at the four corners are communicated with the inner, both ends of pressure pipe IV 10 and pressure pipe III 9 intercommunication, trompil pressure pipe 12 inlays in the bottom of gate 15 upstream face, and the one end of trompil pressure pipe 12 and pressure pipe II 7 intercommunication, the other end is sealed.
The electric heating water storage tank 3 can carry out heating treatment on the water which circularly flows back. During the desilting work period, the electric heating water storage tank 3 does not heat the water in the water tank.
Furthermore, during the dredging operation period of the pressure pump 4, high-pressure pressurization treatment needs to be carried out on water for a short time; during the anti-freezing working period of the gate, the circulation of the heating water flow in the pressure pipe of the gate system needs to be continuously ensured.
Further, the pressure hose 6 may be a corrugated metal hose. The pressure hose 6 is used as a bridge for connecting a gate 15 pipeline system and the electric heating water storage tank 3 pressure pump 4 and can move up and down along with the opening and closing of the gate 15.
Furthermore, automatic gate valve 8 install in gate right side pressure pipe II 7 and pressure pipe V11 junction point department, steerable high-pressure rivers's path of travel realizes the function conversion of gate anti-freezing and desilting.
Further, pressure pipe II 7 arrange in gate 15 internally, distribute in gate 15 four corners, totally 4, inlay in gate 15 surfaces in pressure pipe III 9, arrange respectively in gate 15 and the four corners that the limit wall meets, totally 4, the connection of inside and outside pressure pipe is realized through arranging in internal pressure pipe V11 in gate 15 bottom to pressure pipe II 7 and pressure pipe III 9 in four corners, pressure pipe IV 10 realizes the connection of all pressure pipes in both ends about gate 15.
Furthermore, the perforated pressure pipe 12 is an independent pipe embedded at the bottom of the upstream surface of the gate 15, one end of the perforated pressure pipe is connected with the pressure pipe II 7 connected with the automatic gate valve 8, and the other end of the perforated pressure pipe is closed.
Further, the diameter of the drill holes 13 is 4mm, and the distance between the drill holes 13 is 50mm and is uniformly distributed.
The method for preventing freezing and dredging the gate comprises the following steps:
(1) as shown in figure 3, when in anti-freezing work, the gate valve 2 is opened, water flow enters the electric heating water storage tank 3 through the water inlet pipe 1, the water after heating treatment is pressurized by the pressure pump 4 and slowly flows through the gate pressure pipe system, and finally the water flow flows back to the electric heating water storage tank 3 to complete one-time circulation. Therefore, the water around the gate and the gate groove is repeatedly prevented from freezing due to the low temperature, and the gate is prevented from being frozen.
(2) As shown in figure 4, when the desilting work is carried out, the automatic gate valve 8 changes the desilting pipeline to enter the working state, at the moment, the electric heating water storage tank 3 does not need to carry out heating treatment on water, and the pressure pump 4 needs to carry out high-pressure treatment on the water coming from the electric heating water storage tank 3. Water flow is conveyed to the perforated pressure pipe 12 through the pressure pipe I5, the pressure hose 6 and the pressure pipe II 7, and finally, the water flow is gushed out from the uniformly distributed drilled holes 13 on the perforated pressure pipe 12 at a high speed to impact silt at the bottom of the gate.
While the present invention has been described in detail with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (7)
1. A gate capable of preventing freezing and dredging is characterized by comprising a water inlet pipe (1), a gate valve (2), an electric heating water storage tank (3), a pressure pump (4), a gate (15) and a gate pressure pipe system;
one end of the electric heating water storage tank (3) is communicated with a water inlet pipe (1) with a gate valve (2), the other end of the electric heating water storage tank is communicated with a pressure pump (4) through a pressure pipe, the electric heating water storage tank (3) is used for heating circulating reflux water, and the electric heating water storage tank (3) and the pressure pump (4) are respectively communicated with a gate pressure pipe system.
2. The freeze protection and desilting gate as claimed in claim 1, wherein: the gate pressure pipe system comprises a pressure pipe I (5), a pressure hose (6), a pressure pipe II (7), a pressure pipe III (9), a pressure pipe IV (10), a pressure pipe V (11), an open pore pressure pipe (12) and a pressure pipe VI (14);
the top of electric heat storage water tank (3) communicates with the one end of pressure pipe VI (14), the other end of pressure pipe VI (14) communicates with the one end of pressure hose (6), force pump (4) communicate with pressure hose (6) through pressure pipe I (5), pressure pipe II (7) are arranged in the inside of gate (15) four corners department, pressure hose (6) communicate with pressure pipe II (7), pressure hose (6) up-and-down motion along with the opening and closing of gate (15), pressure pipe III (9) inlay in the surface of gate (15), arrange respectively in gate (15) and four corners department that the boundary wall intersects, the intercommunication of inside and outside pressure pipe is realized through arranging pressure pipe II (7) and pressure pipe III (9) of four corners department in V (11) of gate (15) bottom, pressure pipe IV (10) transverse arrangement is on the top of gate (15) surface, the both ends and pressure pipe (9) of pressure pipe IV (10) communicate, the perforated pressure pipe (12) is embedded at the bottom of the upstream surface of the gate (15), one end of the perforated pressure pipe (12) is communicated with the pressure pipe II (7), and the other end is closed.
3. The gate of claim 2, wherein: the bottom of pressure pipe II (7) is equipped with automatic gate valve (8) that are used for converting the pipeline that rivers flowed through, installs in gate (15) right side pressure pipe II (7) and pressure pipe V (11) intersection point department for the moving path of control high-pressure rivers realizes the function conversion that the gate is frostproofing and the desilting.
4. The gate of claim 2, wherein: the pressure pipe II (7) is provided with four pressure pipes, and the pressure pipe III (9) is provided with four pressure pipes.
5. The gate of claim 4, wherein: the perforated pressure pipe (12) is provided with more than one drilled hole (13).
6. The gate of claim 5, wherein: the diameter of the drill holes (13) is 3-5 mm, and the distance between the drill holes (13) is 50mm and the drill holes are uniformly distributed.
7. The anti-freezing dredging method for the anti-freezing and dredging gate as claimed in claims 1-6, characterized by comprising the following steps:
(1) when in anti-freezing work, the gate valve (2) is opened, water flow enters the electric heating water storage tank (3) through the water inlet pipe (1), the water after heating treatment is pressurized by the pressure pump (4) and slowly flows through the gate pressure pipe system, and finally the water flow flows back to the electric heating water storage tank (3) to complete one-time circulation, so that the operation is repeated, and the gate and the water around the gate groove are prevented from freezing due to over-low temperature to freeze the gate;
(2) the desilting during operation, automatic gate valve (8) conversion is washed silt pipeline and is got into operating condition, at this moment, electric heat storage water tank (3) do not carry out the intensification to water and handle, force pump (4) need come water to electric heat storage water tank (3) and carry out high-pressure treatment, rivers pass through pressure pipe I (5), pressure hose (6) and pressure pipe II (7) and carry to trompil pressure pipe (12), finally gush at a high speed and go out from evenly distributed's drilling (13) on trompil pressure pipe (12), impact gate bottom silt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010829390.9A CN111910590A (en) | 2020-08-18 | 2020-08-18 | Anti-freezing and dredging gate and anti-freezing dredging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010829390.9A CN111910590A (en) | 2020-08-18 | 2020-08-18 | Anti-freezing and dredging gate and anti-freezing dredging method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111910590A true CN111910590A (en) | 2020-11-10 |
Family
ID=73279871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010829390.9A Pending CN111910590A (en) | 2020-08-18 | 2020-08-18 | Anti-freezing and dredging gate and anti-freezing dredging method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111910590A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165922A (en) * | 2021-10-29 | 2022-03-11 | 华能辽宁清洁能源有限责任公司 | Heat flow circulating system for preventing ice layer of gate of hydropower station from being frozen |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29720833U1 (en) * | 1997-11-24 | 1999-03-25 | Niemand Felix | Device for preventing ice formation on locks |
| CN107034855A (en) * | 2017-06-07 | 2017-08-11 | 郭策 | A kind of anti-icing hydraulic engineering gate |
| CN208167665U (en) * | 2018-03-19 | 2018-11-30 | 张国强 | A kind of hydraulic and hydroelectric engineering anti-freezing for gate device |
| CN109958106A (en) * | 2017-12-25 | 2019-07-02 | 刘方旭 | Water conservancy and hydropower gate recess defroster |
| CN209907330U (en) * | 2019-01-17 | 2020-01-07 | 昆明理工大学 | Submersible gate bottom dredging device |
-
2020
- 2020-08-18 CN CN202010829390.9A patent/CN111910590A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29720833U1 (en) * | 1997-11-24 | 1999-03-25 | Niemand Felix | Device for preventing ice formation on locks |
| CN107034855A (en) * | 2017-06-07 | 2017-08-11 | 郭策 | A kind of anti-icing hydraulic engineering gate |
| CN109958106A (en) * | 2017-12-25 | 2019-07-02 | 刘方旭 | Water conservancy and hydropower gate recess defroster |
| CN208167665U (en) * | 2018-03-19 | 2018-11-30 | 张国强 | A kind of hydraulic and hydroelectric engineering anti-freezing for gate device |
| CN209907330U (en) * | 2019-01-17 | 2020-01-07 | 昆明理工大学 | Submersible gate bottom dredging device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165922A (en) * | 2021-10-29 | 2022-03-11 | 华能辽宁清洁能源有限责任公司 | Heat flow circulating system for preventing ice layer of gate of hydropower station from being frozen |
| CN114165922B (en) * | 2021-10-29 | 2023-03-14 | 华能辽宁清洁能源有限责任公司 | Heat flow circulating system for preventing ice layer of gate of hydropower station from being frozen |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104480914B (en) | The fish pass structure that fish pass combines with ship lock and method | |
| CN104499463A (en) | Multi-stage telescopic type steel dam | |
| CN104963322A (en) | Hydraulic junction facility | |
| CN111910590A (en) | Anti-freezing and dredging gate and anti-freezing dredging method | |
| CN109778800B (en) | Gradual change falls sill type stilling basin | |
| CN104328820B (en) | A kind of infiltration water fetching device | |
| CN204326155U (en) | A kind of infiltration water fetching device | |
| CN204326026U (en) | A kind of multi-stage telescopic steel dam | |
| CN211172272U (en) | System for flushing and shunting municipal sewage pipe | |
| CN202440787U (en) | Riverway diversion device | |
| CN217536889U (en) | Silt removing system for flood drainage gate station | |
| CN209873741U (en) | Multifunctional reservoir | |
| CN111350172B (en) | Fishway water replenishing system and fishway combined with ship lock and water replenishing method | |
| CN202989895U (en) | Mountain ship lock | |
| CN209873729U (en) | Device for underwater sand flushing and silt prevention of gate | |
| CN204715310U (en) | A kind of reservoir desilting system | |
| CN210140870U (en) | Small-flow pipeline water taking arrangement structure | |
| CN111305172A (en) | Diversion and drainage bidirectional pressure tunnel | |
| CN203904907U (en) | A silt reduction system for a reservoir | |
| CN206090675U (en) | Equipment is moved to high -efficient failing of covered canal silt under water | |
| CN212688855U (en) | A bank protection for hydraulic engineering | |
| CN212052645U (en) | Water diversion and drainage bidirectional pressure tunnel | |
| CN216041005U (en) | Pump brake combined structure | |
| CN214695485U (en) | Integrated 'leading-blocking-leading' multifunctional temporary ecological water drainage device | |
| CN207700162U (en) | A kind of structure of regulating reservoir and overflow side weir |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201110 |