CN114541527B - Energy dissipation water supply tower and control method thereof - Google Patents
Energy dissipation water supply tower and control method thereof Download PDFInfo
- Publication number
- CN114541527B CN114541527B CN202210203171.9A CN202210203171A CN114541527B CN 114541527 B CN114541527 B CN 114541527B CN 202210203171 A CN202210203171 A CN 202210203171A CN 114541527 B CN114541527 B CN 114541527B
- Authority
- CN
- China
- Prior art keywords
- water
- tower
- energy dissipation
- water supply
- water inlet
- 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.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 268
- 230000021715 photosynthesis, light harvesting Effects 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims description 10
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 230000005484 gravity Effects 0.000 claims abstract description 15
- 238000004891 communication Methods 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 abstract description 2
- 239000008400 supply water Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B11/00—Arrangements or adaptations of tanks for water supply
- E03B11/10—Arrangements or adaptations of tanks for water supply for public or like main water supply
- E03B11/12—Arrangements or adaptations of tanks for water supply for public or like main water supply of high-level tanks
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
- E03B7/075—Arrangement of devices for control of pressure or flow rate
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Control Of Non-Electrical Variables (AREA)
- Pipeline Systems (AREA)
Abstract
An energy dissipation water supply tower comprises a water inlet valve, an energy dissipation tower, a horizontal communication pipe, a water supply tower, a vent pipe, a water level gauge and a base; the external water supply pipeline is connected to the water inlet main pipe through the water inlet valve, the water inlet main pipe is connected with the energy dissipation tower through a plurality of horizontal water inlet branch pipes, a sealing plate is arranged at the top of the energy dissipation tower, a vent pipe is arranged on the sealing plate and is communicated with the atmosphere, and a horizontal communication pipe is arranged at the bottom of the energy dissipation tower and is connected with the water supply tower; the bottom of the water supply tower is provided with a water outlet pipe, a water level gauge is arranged in the water supply tower, the top of the water supply tower is provided with a sealing plate, and the sealing plate is provided with a vent pipe communicated with the atmosphere. According to the scheme, the problem that the pressure and the flow speed at the tail end of the gravity flow pipeline with higher drop are too high is solved, the pressurized water is introduced into the energy dissipation tower through the water inlet valve, the pressurized water flows into the water supply tower through the communication pipe after the energy dissipation of the energy dissipation tower, and finally the water is supplied downwards through the gravity flow through the water supply tower, and the energy dissipation tower and the water supply tower are all provided with ventilation pipes communicated with the atmosphere, so that the purpose of energy dissipation water supply is achieved.
Description
Technical Field
The invention relates to the technical field of gravity flow water delivery systems, which is mainly applied to a gravity flow water delivery pipeline system with large drop, and the water pressure at the tail end of a gravity flow pipeline is controlled to be a reasonable lower value through energy dissipation or multi-stage energy dissipation of an energy dissipation water supply tower.
Background
In water conservancy and other projects, there are many water supply projects utilizing gravity flow, namely, from the pond with higher position, gravity flow water supply is carried out through the raceway to the pond with lower position, when the fall of high and low ponds is relatively great, the water pressure and the velocity of flow of terminal raceway are relatively great, the water column with high energy and high velocity of flow can strike the pond with low position, the water in the pond can produce great water fluctuation, even produce aqueous vapor atomization, be unfavorable for the stable water storage of pond, simultaneously have great destructive effect to the structure of pond, reduce its life-span, if the raceway terminal is provided with the valve, will produce great water hammer pressure at the raceway when the valve is closed, the harm of broken pipe easily produces when the pressure is too high, in order to avoid the production of this kind of phenomenon, guarantee the safety of conduit system, it is necessary to take measures to carry out the energy dissipation to the raceway, reduce the water pressure at the raceway terminal and be in reasonable scope, and possess the valve of automatic control corresponding valve's opening or closing, thereby control the whole conduit system to carry out the function of water supply or stop, the novel energy dissipation of water tower can reach such a purpose.
Disclosure of Invention
The invention aims to provide an energy dissipation water supply tower, which mainly solves the problems of high pressure and high flow rate at the tail end of a gravity flow pipeline with high fall.
In order to achieve the above purpose, the present invention provides the following technical solutions: an energy dissipation water supply tower comprises a water inlet valve, an energy dissipation tower, a horizontal communication pipe, a water supply tower, a vent pipe, a water level gauge and a base; the external water supply pipeline is connected to the water inlet main pipe through the water inlet valve, the water inlet main pipe is connected with the energy dissipation tower through a plurality of horizontal water inlet branch pipes, a sealing plate is arranged at the top of the energy dissipation tower, a vent pipe is arranged on the sealing plate and is communicated with the atmosphere, and a horizontal communication pipe is arranged at the bottom of the energy dissipation tower and is connected with the water supply tower; the bottom of the water supply tower is provided with a water outlet pipe, a water level gauge is arranged in the water supply tower, the top of the water supply tower is provided with a sealing plate, and the sealing plate is provided with a vent pipe communicated with the atmosphere; the base is formed by welding profile steel and steel plates, and the energy dissipation tower and the water supply tower are both arranged on the base. In practical engineering application, the energy dissipation water supply tower is installed on a concrete foundation pier through a base and foundation bolts.
It should be further noted that the water inlet header pipe is provided with two water inlet header pipes which are respectively and symmetrically arranged at the left side and the right side of the energy dissipation tower.
It should be further noted that the outlets of the horizontal water inlet branch pipes in the water inlet main pipe are symmetrically arranged at the same elevation.
The upper part of the energy dissipation tower is provided with an upper communication pipe which is connected with the water supply tower.
It should be further noted that the water level gauge is connected to the water inlet valve through the controller.
It should be further noted that the controller is any one of a single chip microcomputer, a PLC controller or an integrated circuit.
It should be further noted that the vent pipes at the top of the energy dissipation tower and the water supply tower can also be set as vent valves, and can be set according to practical situations.
The control method of the energy dissipation water supply tower comprises the following steps:
(1) two water inlet manifolds are arranged on the left side and the right side of the energy dissipation tower in a vertical and symmetrical mode respectively, a plurality of horizontal branch pipes are connected through the water inlet manifolds and the energy dissipation tower, the horizontal branch pipes on the left side and the right side are symmetrically arranged at the same height at all outlets in the vertical pipe, and water flow with certain pressure and flow speed flows into the vertical pipe from the horizontal branch pipes;
(2) when the water level rises to a set high water level, the controller controls the water inlet valve of the energy dissipation tower to be closed, water inlet is stopped, water overflow is prevented, and when the water level falls to a set low water level, the controller controls the water inlet valve of the energy dissipation tower to be opened, water inlet is started, and water supply is guaranteed to be carried out on the water supply tower to the lower part;
(3) because the water flow has certain pressure and flow velocity, the water columns ejected by the horizontal branch pipes at the left side and the right side collide head on in the vertical pipe, and mutually collide to produce splash, the splash falls and gathers to the bottom of the vertical pipe under the action of gravity, thereby achieving the purpose of energy dissipation.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the scheme, the problem that the pressure and the flow speed at the tail end of a gravity flow pipeline with higher drop height are too high is solved, pressurized water is introduced into the energy dissipation tower through the water inlet valve, after the energy dissipation tower dissipates energy, the pressurized water flows into the water supply tower through the communication pipe, finally, water is supplied downwards through the water supply tower through gravity flow, and the energy dissipation tower and the water supply tower are communicated with the atmosphere through the ventilation pipe, so that the purpose of energy dissipation and water supply is achieved;
2. the water supply tower has a certain capacity, the water inlet valve is controlled to be opened and closed according to the water level, when the water level rises to a set high water level, the water inlet valve of the energy dissipation tower is controlled by the controller to be closed, water is stopped from overflowing, when the water level falls to a set low water level, the water inlet valve of the energy dissipation tower is controlled by the controller to be opened, water is started to be fed, and the water supply tower is ensured to supply water to the lower part;
3. multiple energy dissipation water supply towers can be adopted for multi-stage energy dissipation water supply, and the water pressure at the lowest water point is only related to Gao Chengyou of the energy dissipation water supply tower at the last stage and is irrelevant to the elevation of the water supply tank at the highest point;
4. the equipment is simple in arrangement, good in energy dissipation effect and safe and reliable in water supply.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a partial structure of the energy dissipating tower according to the present invention;
in the figure: a-water inlet valve; b-a water inlet main pipe; c-a water inlet vertical riser; d-a horizontal water inlet branch pipe; e-energy dissipation towers; f-a vent pipe; g-horizontal communicating pipes; h-upper communicating pipe; i-a water supply tower; j-fluviograph; k-a water outlet pipe; and an L-base.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present invention are within the scope of protection of the present invention.
Referring to fig. 1-2, an embodiment of the present invention is provided: the energy dissipation water supply tower comprises a water inlet valve A, an energy dissipation tower E, a horizontal communication pipe G, a water supply tower I, a vent pipe F, a water level meter J and a base L; the external water supply pipeline is connected into a water inlet main pipe B through a water inlet valve A, the water inlet main pipe B is connected with an energy dissipation tower E through a plurality of horizontal water inlet branch pipes D, a sealing plate is arranged at the top of the energy dissipation tower E, a vent pipe F is arranged on the sealing plate and communicated with the atmosphere, and a horizontal communication pipe G is arranged at the bottom of the energy dissipation tower E and connected with a water supply tower I; the bottom of the water supply tower I is provided with a water outlet pipe K, a water level gauge J is arranged in the water supply tower I, the top of the water supply tower I is provided with a sealing plate, and a vent pipe F is arranged on the sealing plate and communicated with the atmosphere; the base L is formed by welding profile steel and steel plates, and the energy dissipation tower E and the water supply tower I are both arranged on the base L. In practical engineering application, the energy dissipation water supply tower is installed on a concrete foundation pier through the base L and the foundation bolts.
The two water inlet manifolds B are respectively and vertically symmetrically arranged on the left side and the right side of the energy dissipation tower E.
The outlets of the horizontal water inlet branch pipes D in the water inlet main pipe B are symmetrically arranged at the same elevation.
The upper part of the energy dissipation tower E is provided with an upper communication pipe H which is connected with the water supply tower I.
The water level gauge J is connected with the water inlet valve A through a controller (not shown in the figure).
The controller is any one of a singlechip, a PLC controller or an integrated circuit.
The vent pipes at the tops of the energy dissipation tower and the water supply tower can also be set as vent valves, and can be set according to actual conditions.
The control method of the energy dissipation water supply tower comprises the following steps:
(1) two water inlet manifolds are arranged on the left side and the right side of the energy dissipation tower in a vertical and symmetrical mode respectively, a plurality of horizontal branch pipes are connected through the water inlet manifolds and the energy dissipation tower, the horizontal branch pipes on the left side and the right side are symmetrically arranged at the same height at all outlets in the vertical pipe, and water flow with certain pressure and flow speed flows into the vertical pipe from the horizontal branch pipes;
(2) when the water level rises to a set high water level, the controller controls the water inlet valve of the energy dissipation tower to be closed, water inlet is stopped, water overflow is prevented, and when the water level falls to a set low water level, the controller controls the water inlet valve of the energy dissipation tower to be opened, water inlet is started, and water supply is guaranteed to be carried out on the water supply tower to the lower part;
(3) because the water flow has certain pressure and flow velocity, the water columns ejected by the horizontal branch pipes at the left side and the right side collide head on in the vertical pipe, and mutually collide to produce splash, the splash falls and gathers to the bottom of the vertical pipe under the action of gravity, thereby achieving the purpose of energy dissipation.
According to the gravity flow water supply project of engineering, when the fall of a high-level water tank and a low-level water tank is larger than 40m, water is not needed to be directly supplied from the high-level water tank to the low-level water tank by using a water pipe, an energy dissipation water supply tower is arranged at the middle elevation between the high-level water tank and the low-level water tank to conduct energy dissipation treatment, and then water is supplied to the low-level water tank, so that about half of energy is eliminated at the tail end of the water pipe, the outlet pressure and the flow rate of the tail end are controlled within reasonable values, the low-level water tank is protected, and water storage of the low-level water tank is facilitated.
If the fall of the high-level water tank and the low-level water tank is too high, for example, more than 100m or higher, a plurality of energy dissipation water supply towers can be arranged in the period, the fall between adjacent energy dissipation water supply towers is controlled to be about 20m, energy dissipation water supply is carried out step by step, when the water of the low-level water tank is full, the water inlet valve of the water tank is closed, the water level in the energy dissipation water supply tower of the last stage rises, when the water level rises to the set high water level, a water level meter in the water supply tower can control the water inlet valve of the energy dissipation tower to be closed, water supply is stopped, the same principle sequentially enables the water inlet valve of the energy dissipation water supply tower of the upper stage to be closed, and the whole water conveying pipeline system stops conveying water. On the contrary, when the water level of the low-level water tank falls, the water inlet valve of the water tank is opened, water in the energy-dissipation water supply tower of the last stage starts to automatically supply water to the water tank, so that the water level in the water supply tower falls, when the water level falls to a set low water level, the water level gauge can control the water inlet valve to be opened, so that the energy-dissipation water supply tower of the upper stage supplies water, the water inlet valve of the energy-dissipation water supply tower of the upper stage is opened to supply water, all the water inlet valves of the energy-dissipation water supply towers are sequentially opened, and the whole energy-dissipation water supply tower pipeline system enters a normal water conveying state.
The gravity flow water delivery system of the energy dissipation water supply tower is arranged, the pressure of the water inlet pipe of the low-level water tank only depends on the elevation of the energy dissipation water supply tower at the last stage, and the pressure of the water inlet pipe of the low-level water tank has no relation with the elevation of the high-level water tank at the source, so that the purpose of energy dissipation and safe water delivery is achieved.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all such modifications and equivalents are intended to be encompassed in the scope of the claims of the present invention.
Claims (5)
1. The control method of the energy dissipation water supply tower is characterized in that the energy dissipation water supply tower comprises a water inlet valve, an energy dissipation tower, a horizontal communication pipe, a water supply tower, a vent pipe, a water level gauge and a base; the external water supply pipeline is connected to the water inlet main pipe through the water inlet valve, the water inlet main pipe is connected with the energy dissipation tower through a plurality of horizontal water inlet branch pipes, a sealing plate is arranged at the top of the energy dissipation tower, a vent pipe is arranged on the sealing plate and is communicated with the atmosphere, and a horizontal communication pipe is arranged at the bottom of the energy dissipation tower and is connected with the water supply tower; the bottom of the water supply tower is provided with a water outlet pipe, a water level gauge is arranged in the water supply tower, the top of the water supply tower is provided with a sealing plate, and the sealing plate is provided with a vent pipe communicated with the atmosphere; the base is formed by welding profile steel and a steel plate, and the energy dissipation tower and the water supply tower are both arranged on the base;
the control method of the energy dissipation water supply tower comprises the following steps:
(1) two water inlet manifolds are arranged on the left side and the right side of the energy dissipation tower in a vertical and symmetrical mode respectively, a plurality of horizontal branch pipes are connected through the water inlet manifolds and the energy dissipation tower, the horizontal branch pipes on the left side and the right side are symmetrically arranged at the same height at all outlets in the vertical pipe, and water flow with certain pressure and flow speed flows into the vertical pipe from the horizontal branch pipes;
(2) when the water level rises to a set high water level, the controller controls the water inlet valve of the energy dissipation tower to be closed, water inlet is stopped, water overflow is prevented, and when the water level falls to a set low water level, the controller controls the water inlet valve of the energy dissipation tower to be opened, water inlet is started, and water supply is guaranteed to be carried out on the water supply tower to the lower part;
(3) because the water flow has certain pressure and flow velocity, the water columns ejected by the horizontal branch pipes at the left side and the right side collide head on in the vertical pipe, and mutually collide to produce splash, the splash falls and gathers to the bottom of the vertical pipe under the action of gravity, thereby achieving the purpose of energy dissipation.
2. The control method of the energy dissipation water supply tower according to claim 1, wherein: and all outlets of the horizontal water inlet branch pipes in the water inlet main pipe are symmetrically arranged at the same elevation.
3. The control method of the energy dissipation water supply tower according to claim 1, wherein: the upper part of the energy dissipation tower is provided with an upper communication pipe which is connected with the water supply tower.
4. The control method of the energy dissipation water supply tower according to claim 1, wherein: the water level gauge is connected with the water inlet valve through the controller.
5. The control method of the energy dissipation water supply tower according to claim 4, wherein: the controller is any one of a singlechip, a PLC controller or an integrated circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210203171.9A CN114541527B (en) | 2022-03-03 | 2022-03-03 | Energy dissipation water supply tower and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210203171.9A CN114541527B (en) | 2022-03-03 | 2022-03-03 | Energy dissipation water supply tower and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114541527A CN114541527A (en) | 2022-05-27 |
| CN114541527B true CN114541527B (en) | 2024-03-29 |
Family
ID=81662263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210203171.9A Active CN114541527B (en) | 2022-03-03 | 2022-03-03 | Energy dissipation water supply tower and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114541527B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201843170U (en) * | 2010-07-09 | 2011-05-25 | 辽宁省水利水电勘测设计研究院 | Overflow pressure regulating tower in water conveying system |
| BR202013023331U2 (en) * | 2013-09-11 | 2015-11-24 | P J Metalúrgica Ltda Me | constructive arrangement applied in water tank |
| CN108330899A (en) * | 2018-01-18 | 2018-07-27 | 河海大学 | The closed laterally symmetric horn mouth inlet method of river model test |
| CN110206938A (en) * | 2019-07-01 | 2019-09-06 | 西安济源水用设备技术开发有限责任公司 | A kind of orifice type high proportion decompression energy dissipating valve |
| CN213926159U (en) * | 2020-11-25 | 2021-08-10 | 湖南清源华建环境科技有限公司 | Hydraulic energy dissipation device |
-
2022
- 2022-03-03 CN CN202210203171.9A patent/CN114541527B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201843170U (en) * | 2010-07-09 | 2011-05-25 | 辽宁省水利水电勘测设计研究院 | Overflow pressure regulating tower in water conveying system |
| BR202013023331U2 (en) * | 2013-09-11 | 2015-11-24 | P J Metalúrgica Ltda Me | constructive arrangement applied in water tank |
| CN108330899A (en) * | 2018-01-18 | 2018-07-27 | 河海大学 | The closed laterally symmetric horn mouth inlet method of river model test |
| CN110206938A (en) * | 2019-07-01 | 2019-09-06 | 西安济源水用设备技术开发有限责任公司 | A kind of orifice type high proportion decompression energy dissipating valve |
| CN213926159U (en) * | 2020-11-25 | 2021-08-10 | 湖南清源华建环境科技有限公司 | Hydraulic energy dissipation device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114541527A (en) | 2022-05-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104681108B (en) | Passive natural circulation consolidation system and method after a kind of liquid-metal cooled reactor defluidization | |
| CN114541527B (en) | Energy dissipation water supply tower and control method thereof | |
| CN103418225A (en) | High-efficiency carbon-absorbing tower | |
| CN217949230U (en) | Energy dissipation water supply tower | |
| CN101324406A (en) | Uniform heat exchange energy saving equipment | |
| CN101905872B (en) | Device for absorbing SO3 generated in process of preparing sulfuric acid | |
| CN209368949U (en) | Protecting water hammer device suitable for large-scale buried long distance water transfer pumping plant | |
| CN210718089U (en) | Closed type circulating water device with voltage stabilizing function for electrode boiler | |
| CN216238753U (en) | Condensate water recovery and recycling system of steam heater of oxygen generation station | |
| CN110631258A (en) | Closed circulating water system of electrode boiler with pressure stabilizing function | |
| CN220034401U (en) | Desulfurization liquid balance system | |
| CN217267828U (en) | A steady voltage water supply system for ball-milling workshop | |
| CN215491021U (en) | Smelting furnace vaporization cooling and waste heat recovery system for reclaimed copper industry | |
| CN216897263U (en) | Self-adaptive feed water steam heating device | |
| CN202881232U (en) | System for adjusting liquid feeding/pouring two flow directions | |
| CN220432531U (en) | Floating water level seawater recovery system for seawater desulfurization | |
| CN211514015U (en) | Membrane method flue gas moisture recovery system based on siphon action | |
| CN214249552U (en) | Waste incineration power plant's blowdown cooling system | |
| CN209957406U (en) | Anti-siphon device for sewage treatment reactor | |
| CN219829177U (en) | Apply to indoor automatic blowdown cooling pond | |
| CN216457919U (en) | Constant liquid level combined nitrogen oxide compressor set separator system | |
| CN208795033U (en) | Net ring multiple linkage cooling tower cooling device | |
| CN218206661U (en) | Crude oil-gas separator for oil well | |
| CN220081826U (en) | Industrial water circulation system of heavy-gradient inclined shaft heading machine | |
| CN216619790U (en) | High-pressure heater drainage system of steel mill gas generator set |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |