CN216956782U - Automatic control equipment for water level of water collecting well of hydropower station - Google Patents
Automatic control equipment for water level of water collecting well of hydropower station Download PDFInfo
- Publication number
- CN216956782U CN216956782U CN202123306838.8U CN202123306838U CN216956782U CN 216956782 U CN216956782 U CN 216956782U CN 202123306838 U CN202123306838 U CN 202123306838U CN 216956782 U CN216956782 U CN 216956782U
- Authority
- CN
- China
- Prior art keywords
- water
- water level
- floating ball
- liquid level
- control box
- 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
Images
Classifications
-
- 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
- Control Of Non-Electrical Variables (AREA)
Abstract
The utility model relates to automatic control equipment for the water level of a water collecting well of a hydropower station, belonging to the field of water level control equipment. The utility model comprises a control box, a water collecting well and a water pump, wherein the control box is arranged between the water collecting well and the water pump, a liquid level floating ball, a control cable, a PLC and a liquid level transmitter are arranged on the control box, the control box is connected with the liquid level floating ball, the liquid level transmitter and the water pump through the control cable, one side of the PLC is connected with the liquid level floating ball and the liquid level transmitter, the other side of the PLC is connected with the water pump, the third side of the PLC is connected with a background, the PLC is arranged in the control box, and the liquid level floating ball and the liquid level transmitter are arranged in the water collecting well. The utility model has reasonable structural design, safety and reliability, realizes automatic water level control, improves the automation degree and the working efficiency, avoids potential safety hazards and ensures the accurate control of the water level.
Description
Technical Field
The utility model relates to a control device, in particular to a hydropower station water collecting well water level automatic control device, and belongs to the field of water level control devices.
Background
The hydropower station water system consists of a water supply system and a drainage system. In drainage systems, in-plant leakage drainage typically comprises: the leakage water of the hydraulic structure in the factory, the leakage water of the sealing position of the top cover of the machine set and the main shaft, the leakage water of each water supply and drainage valve and pipe fittings, etc. the leakage water drainage is characterized by small drainage quantity, low elevation and no self-flowing drainage to the downstream. Therefore, a water collecting well is provided in a general power plant, and the leaked water is collected and pumped out by a water pump. The maintenance drainage includes: the accumulated water in the tail water pipe, the accumulated water in the volute and the pressure pipeline which are lower than the tail water level, the water leakage between the upstream and the downstream doors and the like are mainly drained during maintenance. The characteristics of maintenance and drainage are that the drainage quantity is large, the elevation is low, and the water needs to be discharged in a short time by a water pump. In addition, many power stations have still set up the factory area drain well, mainly discharge behind rainwater and other various drainage around the factory building are collected, can adopt the drainage of flowing automatically usually, and then adopt the water pump drainage when the downstream water level is higher.
At present most power station is used for controlling the equipment of sump pit water level and is the liquid level floater, but its operational reliability is low, receives the environmental impact great, and the routine maintenance is inconvenient, and work efficiency is low, has the potential safety hazard that the sump pit water level is too high and spill over, and artifical manual start water pump control water level, causes manpower resources's waste and to the control of water level accurate stability inadequately.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art, and provides the automatic control equipment for the water level of the water collecting well of the hydropower station, which has simple and reasonable structural design, is stable and reliable, can automatically control the water level, improves the automation degree, avoids potential safety hazards and simultaneously ensures the accurate control of the water level.
The technical scheme adopted by the utility model for solving the problems is as follows: this power station sump pit water level automatic control equipment, including control box, sump pit and water pump, the control box is installed between sump pit and water pump, its characterized in that: the water pump is connected to one side of the PLC, the water pump is connected to the other side of the PLC, the backstage is connected to the third side of the PLC, the liquid level floating ball and the liquid level transmitter are installed in the control box, and the liquid level floating ball and the liquid level transmitter are installed in the water collecting well.
Preferably, the utility model also comprises a PLC expansion module, wherein the PLC and the PLC expansion module are both arranged in the control box; the PLC and the PLC extension module receive different water level signals and then automatically start or stop the water pump.
Preferably, the liquid level floating ball comprises a low water level floating ball, a stop water level floating ball, a standby starting water level floating ball, an over high water level floating ball and an automatic water level floating ball, and the low water level floating ball, the stop water level floating ball, the standby starting water level floating ball, the over high water level floating ball and the automatic water level floating ball are all arranged in the water collecting well.
Preferably, the liquid level floating ball and the liquid level transmitter transmit a water level signal of the water collecting well to the control box through the control cable.
Preferably, the level transmitter of the present invention is of the DC 24V passive switch type.
Preferably, the control box of the present invention employs an IP54 protection class.
Compared with the prior art, the utility model has the following advantages and effects: the whole structure is simple and reasonable in design, stable and reliable, the water level can be automatically controlled, the potential safety hazard is avoided, and meanwhile, the accurate control of the water level is ensured; through installation liquid level floater and liquid level changer in the sump pit, with liquid level signal transfer to PLC module in the control box to thereby control opening of water pump through PLC output signal and stop the height of controlling the sump pit water level, improved degree of automation and work efficiency.
Drawings
Fig. 1 is a schematic diagram of the overall structural position relationship in the embodiment of the present invention.
In the figure: the device comprises a liquid level floating ball 1, a control cable 2, a control box 3, a water pump 4, a PLC5, a liquid level transmitter 6, a water collecting well 7, a PLC expansion module 8 and a background 9;
liquid level float ball 1: the automatic water level control system comprises a low water level floating ball 11, a stop water level floating ball 12, a standby start water level floating ball 13, a high water level floating ball 14 and an automatic water level floating ball 15;
the control cable 2: a control cable I21, a control cable II 22, a control cable III 23, a control cable IV 24, a control cable V25 and a control cable VI 26;
and (4) a water pump: a first water pump 41 and a second water pump 42.
Detailed Description
The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.
Examples are given.
Referring to fig. 1, the automatic control equipment for the water level of the water collecting well of the hydropower station comprises a liquid level floating ball 1, a control cable 2, a control box 3, a water pump 4, a PLC5, a liquid level transmitter 6, a water collecting well 7, a PLC extension module 8 and a background 9.
The liquid level floating ball 1 in this embodiment includes a low water level floating ball 11, a stop water level floating ball 12, a standby start water level floating ball 13, an excessive water level floating ball 14, and an automatic water level floating ball 15, and the low water level floating ball 11, the stop water level floating ball 12, the standby start water level floating ball 13, the excessive water level floating ball 14, and the automatic water level floating ball 15 are all installed in the water collecting well 7.
The control cable 2 in this embodiment includes a first control cable 21, a second control cable 22, a third control cable 23, a fourth control cable 24, a fifth control cable 25, and a sixth control cable 26; the water pump 4 includes a first water pump 41 and a second water pump 42.
The PLC5 and the PLC extension module 8 in this embodiment are both installed in the control box 3.
The liquid level floating ball 1 and the liquid level transmitter 6 in the embodiment transmit a water level signal of the water collecting well 7 to the control box 3 through the control cable 2.
The liquid level transmitter 6 in this embodiment is of a direct current 24V passive switch type; control box 3 adopts IP54 protection grade
In the embodiment, the water level signal of the water collecting well 7 is transmitted to the control box 3 through the control cable I21 by the over-low water level floating ball 11, the stop water level floating ball 12, the standby start water level floating ball 13, the over-high water level floating ball 14 and the automatic water level floating ball 15 in the liquid level floating ball 1.
The liquid level transmitter 6 of the embodiment transmits the water level signal of the water collecting well 7 to the control box 12 through the control cable one 21.
The liquid level transmitter 6 of this embodiment has set up minimum water level, stop water level, automatic water level, reserve water level, 5 water level signals of too high water level and the water level signal one-to-one of crossing low water level floater 11, stopping water level floater 12, reserve start water level floater 13, too high water level floater 14 and automatic water level floater 15 in the liquid level floater 1.
The analog quantity signal of the liquid level transmitter 6 of the embodiment is sent to the control box 3, and the PLC extension module 8 preferentially uses the analog quantity signal to control the start and stop of the first water pump 41 and the second water pump 42.
Switching value signals of the over-low water level floating ball 11, the stop water level floating ball 12, the standby start water level floating ball 13, the over-high water level floating ball 14 and the automatic water level floating ball 15 are sent to the control box 3, and the PLC5 takes the switching value signals as standby signals when analog quantity signals are abnormal to control the start and stop of the first water pump 41 and the second water pump 42.
The first water pump 41 and the second water pump 42 of the embodiment are alternately started under the control of a PLC program.
The background 9 of this embodiment receives the water level switching value and the analog signal from the PLC5 and the PLC extension module 8 and sends them to the monitoring system, including the quality information of the analog, the start/stop signals of the first and second water pumps 41 and 42, the "automatic/manual" signals of the first and second water pumps 41 and 42, the specific water level value information of the sump 7, and the threshold limit and alarm signal for the high and low water level.
The control box 3 of this embodiment receives the water level signal of the liquid level transmitter 6, and through setting up the liquid level transmitter, after sending required water level signal to the control box 3, the control box 3 controls the opening and the stop of the first water pump 41, the second water pump 42 through control cable three 23 or control cable four 24 to control the water level of the sump 7.
The control box 3 of this embodiment receives the water level signals of the low water level floating ball 11, the stop water level floating ball 12, the standby start water level floating ball 13, the high water level floating ball 14 and the automatic water level floating ball 15, and after the required water level signals are sent to the control box 3 by setting the water level floating ball 1, the control box 3 controls the start and stop of the first water inlet pump 41 and the second water inlet pump 42 through the third control cable 23 or the fourth control cable 24, so as to control the water level of the water collecting well 7.
The working mode of the embodiment is as follows: the water collecting well 7 outputs an automatic water level signal through the liquid level transmitter 6, the control box 3 controls the first water pump 41 or the second water pump 42 to start after receiving the water level signal, when the water level of the water collecting well 7 drops to a lower water level, the liquid level transmitter 6 is triggered, the water level stopping signal is sent to the control box 3, and the control box 3 controls the first water pump 41 or the second water pump 42 to stop after receiving the water level signal, so that the purpose of controlling the water level of the water collecting well is achieved. If the water collecting well 7 outputs an automatic water level signal through the liquid level transmitter 6, the control box 3 receives a water level signal and then the first water pump 41 or the second water pump 42 is not started, the water level of the water collecting well 7 continuously rises to a standby water level to trigger the liquid level transmitter 6, the control box 3 receives a water level signal and then the first water pump 41 or the second water pump 42 is not started, the water level of the water collecting well 7 continuously rises to an overhigh water level to trigger the liquid level transmitter 6, the control box 3 receives a water level signal and then the first water pump 41 or the second water pump 42 is started, when the water pump runs to the water collecting well 7 and the water level drops to a lower water level, the liquid level transmitter 6 is triggered, a water level stopping signal is sent to the control box 3, the first water pump 41 or the second water pump 42 is not stopped after the control box 3 receives a water level signal and then the first water pump 41 or the second water pump 42 is controlled to stop, the purpose of controlling the water level of the water collecting well is achieved.
The working mode of the embodiment is as follows: the water collecting well 7 outputs an automatic water level signal through the automatic water level floating ball 15, the control box 3 receives the water level signal and then controls the first water pump 41 or the second water pump 42 to start, when the water level of the water collecting well 7 drops to a lower water level, the water level stopping floating ball 12 is triggered, the water level stopping signal is sent to the control box 3, and the control box 3 receives the water level signal and then controls the first water pump 41 or the second water pump 42 to stop, so that the purpose of controlling the water level of the water collecting well is achieved. If the water collecting well 7 outputs an automatic water level signal through the automatic water level floating ball 15, the control box 3 receives the water level signal and then the first water pump 41 or the second water pump 42 is not started, the water level of the water collecting well 7 continuously rises to a standby water level to trigger the standby starting water level floating ball 13, the control box 3 receives the water level signal and then the first water pump 41 or the second water pump 42 is still not started, the water level of the water collecting well 7 continuously rises to an overhigh water level to trigger the overhigh water level floating ball 14, the control box 3 receives the water level signal and then the first water pump 41 or the second water pump 42 is started, when the water pump runs to the water collecting well 7 and then falls to a lower water level, the stopping water level floating ball 12 is triggered, the stopping water level signal is sent to the control box 3, the first water pump 41 or the second water pump 42 is not stopped after the control box 3 receives the water level signal and then the first water pump 41 or the second water pump 42 is continuously dropped to the overlow water level to trigger the overlow water pump 11, the control box 3 receives the water level signal and then the first water pump 41 or the second water pump 42 is stopped, the purpose of controlling the water level of the water collecting well is achieved.
The working mode of the embodiment is as follows: when the first water pump 41 or the second water pump 42 is started, the water level of the water collecting well 7 is lowered to trigger the liquid level transmitter 6 or the water level stopping floating ball 12, the water level stopping signal is sent to the control box 3, the control box 3 receives the water level stopping signal of the liquid level transmitter 6 or the water level stopping floating ball 12 and then controls the first water pump 41 or the second water pump 42 to stop, namely the water level stopping signals of the liquid level transmitter 6 and the water level stopping floating ball 12 are in an 'or' relation in a program, and once the analog quantity signal or the switching quantity signal is sent to the control box 3, the first water pump 41 or the second water pump 42 is controlled to stop through the signal, the mode is used for protecting the water pump 4, and meanwhile the purpose of controlling the water level of the water collecting well is achieved.
And will be apparent to those skilled in the art from the foregoing description.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above described contents are merely illustrative of the structures of the present invention. Equivalent or simple changes in the structure, characteristics and principles of the utility model are included in the protection scope of the patent. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the utility model as defined in the accompanying claims.
Claims (6)
1. The utility model provides a power station sump pit water level automatic control equipment, includes control box (3), sump pit (7) and water pump (4), install between sump pit (7) and water pump (4) control box (3), its characterized in that: still include liquid level floater (1), control cable (2), PLC (5) and liquid level transmitter (6), control box (3) are connected liquid level floater (1), liquid level transmitter (6) and water pump (4) through control cable (2), and liquid level floater (1) and liquid level transmitter (6) are connected to PLC (5) one side, and water pump (4) are connected to the opposite side, and backstage (9) are connected to the third side, and PLC (5) are installed in control box (3), and liquid level floater (1) and liquid level transmitter (6) are installed in sump pit (7).
2. The automatic control equipment of the water level of the water collecting well of the hydropower station as claimed in claim 1, characterized in that: the PLC expansion module (8) is further included, and the PLC (5) and the PLC expansion module (8) are both installed in the control box (3).
3. The automatic control equipment of the hydropower station sump well water level according to claim 1, characterized in that: the liquid level floating ball (1) comprises a low water level floating ball (11), a stop water level floating ball (12), a standby start water level floating ball (13), an over high water level floating ball (14) and an automatic water level floating ball (15), and the low water level floating ball (11), the stop water level floating ball (12), the standby start water level floating ball (13), the over high water level floating ball (14) and the automatic water level floating ball (15) are all installed in the water collecting well (7).
4. The automatic control equipment of the hydropower station sump well water level according to claim 1, characterized in that: the liquid level floating ball (1) and the liquid level transmitter (6) transmit water level signals of the water collecting well (7) to the control box (3) through the control cable (2).
5. The automatic control equipment of the hydropower station sump well water level according to claim 1, characterized in that: the liquid level transmitter (6) adopts a direct current 24V passive switch type.
6. The automatic control equipment of the water level of the water collecting well of the hydropower station as claimed in claim 1, characterized in that: the control box (3) adopts IP54 protection grade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123306838.8U CN216956782U (en) | 2021-12-27 | 2021-12-27 | Automatic control equipment for water level of water collecting well of hydropower station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123306838.8U CN216956782U (en) | 2021-12-27 | 2021-12-27 | Automatic control equipment for water level of water collecting well of hydropower station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216956782U true CN216956782U (en) | 2022-07-12 |
Family
ID=82312356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123306838.8U Active CN216956782U (en) | 2021-12-27 | 2021-12-27 | Automatic control equipment for water level of water collecting well of hydropower station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216956782U (en) |
-
2021
- 2021-12-27 CN CN202123306838.8U patent/CN216956782U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101864789A (en) | Volume type rain early-stage split-flow device | |
| CN204904099U (en) | Automatic change drainage system | |
| CN107419789A (en) | The drainage system and water discharge method of the turbine-generator units in the higher river of tailwater level | |
| CN203129311U (en) | Intelligent vacuum draining device | |
| CN104060675B (en) | The equal permanent water level exhaust system of municipal wastewater collecting well and discharge method thereof | |
| CN205822349U (en) | A kind of water tower-constant voltage duplex water system | |
| CN216956782U (en) | Automatic control equipment for water level of water collecting well of hydropower station | |
| CN110016945B (en) | Water inlet control device of emergency water tank | |
| CN103835360A (en) | Automatic drainage system of box culvert road | |
| CN217711078U (en) | Emergency drainage system for underground plant | |
| CN209278100U (en) | One for sewage hoistway uses prepare more control system of water pump | |
| CN106337802A (en) | Automatic pumping method for collecting well and pumping system based on automatic pumping method | |
| CN216195370U (en) | Inverted siphon pipeline self-flushing system | |
| CN107450616B (en) | Full-automatic drainage and waterlogging drainage control system for ultrasonic liquid level detection | |
| CN213868035U (en) | Main shaft seal water supply system of underground plant water power station | |
| CN203384062U (en) | Automatic drainage monitoring system of transformer substation | |
| CN205314233U (en) | Multi -functional sump pit structure in power station | |
| CN112594004B (en) | Underground central pump house drainage linkage system for dealing with extreme weather | |
| CN201058998Y (en) | High-building relay type non-negative pressure frequency-changing waterworks | |
| CN210713117U (en) | Building rain and sewage diversion system based on Internet of things | |
| CN203808202U (en) | Automatic drainage system for box-culvert road | |
| CN219011408U (en) | Drainage device of transformer substation | |
| CN201024438Y (en) | Superposed pipe pressurizing water supply device | |
| CN113606959B (en) | Condenser cooling system and power generation system | |
| CN211118716U (en) | Water-saving device for recovering condensate of steam pipeline steam trap |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |