CN218116355U - Hydropower station arc door side water sealing lubricating water system - Google Patents
Hydropower station arc door side water sealing lubricating water system Download PDFInfo
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- CN218116355U CN218116355U CN202221572838.4U CN202221572838U CN218116355U CN 218116355 U CN218116355 U CN 218116355U CN 202221572838 U CN202221572838 U CN 202221572838U CN 218116355 U CN218116355 U CN 218116355U
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Abstract
The utility model provides a power station arc door side water seal lubricating water system. Power station arc door side water seal lubricating water system includes: high-order pond, trunk line, small transfer line and shower, high-order pond sets up and is located the dam body and is higher than ground department, the trunk line intercommunication is in on the high-order pond, the small transfer line intercommunication is in on the trunk line, the small transfer line sets up according to arc door quantity, the shower intercommunication is corresponding on the small transfer line, the shower sets up in groups, in groups the shower extends to the arc door both sides of dam mouth respectively. The utility model provides a power station radial gate side water seal lubricating water system has carries out effective lubrication to the lateral water seal, avoids dry friction, prolongs the service life of radial gate side seal, can effectively save manpower and material resources of maintenance, shortens the maintenance period; and meanwhile, the automatic operation level of the power station can be improved.
Description
Technical Field
The utility model relates to a power station radial gate technical field especially relates to a power station radial gate side water seals lubricated water system.
Background
The hydropower station arc door is used as an important component of a hydropower station, and a water seal is required to be arranged on the side edge of the arc surface in order to ensure the sealing effect in use, taking a south sand hydropower station as an example: the south sand hydropower station is provided with 3 holes and 3 meter hole arc-shaped working arc gates (hereinafter referred to as arc gates) with the size (width and height) of 17.0m by 17.6m, the bottom threshold height of 249.408m and the design water head of 44.5m; the water seals on the two sides of the arc door are made of 'LP' type SF6674 natural rubber water seals, and are used for preventing water leakage on the two sides of the arc door and guaranteeing the good sealing performance of the arc door.
However, since the water seal is natural rubber, there are major disadvantages in practical use, such as:
1. the arc door can produce certain friction with the track at the in-process side water seal of opening and close, especially the arc door side water seal is located the part on the surface of water, because lack the lubricated effect of dehydration, there is comparatively serious dry friction with the track, if the side water seal is under this kind of operating condition for a long time, can accelerate the wearing and tearing of arc door water seal, shorten its life, cause the side water seal top to tear when serious, destroy the sealed effect of water seal, the phenomenon that leaks appears, south sand hydropower station arc door side water seal all need overhaul the maintenance at present every year, the side water seal once of changing about two years, it is higher to maintain and the replacement cost.
2. When the arc door is overhauled, the arc door needs to be opened and closed for multiple times, the arc door is lifted to be fully opened or falls to be fully closed for inspection, the side seals are in a dry friction state due to lack of lubrication of water during operation, and damage to the side water seals is large; therefore, when the maintenance personnel need to temporarily install the water pump when the maintenance personnel maintain every year, water is taken from the water pump for the reservoir at the top of the dam, and spraying lubrication is carried out on the water seal at the side of the arc door. The operation is complicated, the number of input personnel is large, the efficiency is low, and potential safety hazards exist; in addition, when a water pump is installed to take water, field equipment and personnel can only meet the spray lubrication mode of a single water pipe and a single nozzle, uneven spraying and insufficient lubrication can occur, and then unnecessary abrasion of local side water sealing is caused.
Therefore, there is a need to provide a new hydropower station arc door side water-tight lubrication water system to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The technical problem solved by the utility model is to provide a radial water seal lubrication device which can effectively lubricate lateral water seal, avoid dry friction, prolong the service life of the radial gate lateral seal, effectively save manpower and material resources for maintenance, and shorten maintenance period; meanwhile, the hydropower station arc door side water sealing lubricating water system capable of improving the automation operation level of the power station can be improved.
In order to solve the technical problem, the utility model provides a power station arc door side water seal lubricating water system includes: high-order pond, trunk line, small transfer line and shower, high-order pond sets up and is located the dam body and is higher than ground department, the trunk line intercommunication is in on the high-order pond, the small transfer line intercommunication is in on the trunk line, the small transfer line sets up according to arc door quantity, the shower intercommunication is corresponding on the small transfer line, the shower sets up in groups, in groups the shower extends to the arc door both sides of dam mouth respectively.
Preferably, the spray pipe and the arc door are arranged at the same angle, and a plurality of spray holes are formed in the spray pipe at equal intervals.
Preferably, the main pipeline is provided with a main valve, a pressure pump and a flow switch in sequence at the high-level water pool, and the joint of the main pipeline and the branch pipeline is provided with an electric ball valve.
Preferably, an embedded part is arranged in a dam opening of the dam body, and the embedded part is fixedly connected with the spray pipe.
Preferably, one side of the arc door, which is positioned on the spraying hole of the spraying pipe, is provided with a water sealing piece, and the water sealing piece is installed through a detachable fixing piece.
Preferably, the height of the high-level water tank is greater than or equal to 1m above the ground, and the high-level water tank is a concrete water tank.
Compared with the prior art, the utility model provides a power station arc door side water seals lubricating water system has following beneficial effect:
the utility model provides a power station radial gate side water seal lubricating water system:
1. the tracks and the water seals on the two sides of the arc door are sprayed before the arc door acts, so that sufficient lubrication is ensured, dry friction between the side water seal and the tracks is reduced, the service life of the side water seal is prolonged, and the sealing and water stopping effects are ensured;
2. the lubricating water system has an automatic control function, an advanced automatic control technology is technically adopted, the automatic operation level of power station equipment is improved, the existing equipment is reasonably utilized, and the research cost is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a hydropower station arc door side water sealing lubricating water system provided by the utility model;
FIG. 2 is a schematic view of the specific installation structure of the shower pipe and the water seal member of the present invention;
FIG. 3 is an enlarged view of the portion A shown in FIG. 2;
FIG. 4 is a schematic structural view of the shower pipe of the present invention;
fig. 5 is a logic diagram of the lubricating water system of the present invention.
Reference numbers in the figures: 1. a high-level water tank; 2. a main pipeline; 3. a pipeline is branched; 4. a shower pipe; 5. an arc door; 6. spraying holes; 7. a main valve; 8. a pressure pump; 9. a flow switch; 10. an electric ball valve; 11. a dam body; 12. a dam opening; 13. embedding parts; 14. a water seal; 15. and a fixing member.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments.
Please refer to fig. 1-5, wherein fig. 1 is a schematic structural diagram of a hydropower station arc door side water sealing lubricating water system according to the present invention; FIG. 2 is a schematic view of the specific installation structure of the shower pipe and the water seal member of the present invention; FIG. 3 is an enlarged schematic view of portion A shown in FIG. 2; FIG. 4 is a schematic structural view of the shower pipe of the present invention; fig. 5 is a logic diagram of the lubricating water system of the present invention. Power station arc door side water seal lubricating water system includes: high-order pond 1, trunk line 2, small transfer line 3 and shower 4, high-order pond 1 sets up and is located dam body 11 and is higher than ground department, trunk line 2 intercommunication is in high-order pond 1 is last, small transfer line 3 intercommunication is in on the trunk line 2, small transfer line 3 sets up according to 5 quantity of arc door, shower 4 intercommunication is corresponding on the small transfer line 3, shower 4 sets up in groups, in groups shower 4 extends to the 5 both sides of arc door of dam mouth 12 respectively.
The spray pipe 4 and the arc door 5 are arranged at the same angle, and a plurality of spray holes 6 are formed in the spray pipe 4 at equal intervals.
The main pipeline 2 is provided with a main valve 7, a pressure pump 8 and a flow switch 9 in sequence from the high-level water tank 1, and the joint of the main pipeline 2 and the branch pipeline 3 is provided with an electric ball valve 10.
An embedded part 13 is arranged in a dam opening 12 of the dam body 11, and the embedded part 13 is fixedly connected with the spray pipe 4.
And a water sealing piece 14 is arranged on one side of the arc door 5, which is positioned on the spraying hole 6 of the spraying pipe 4, and the water sealing piece 14 is installed through a detachable fixing piece 15.
The height ground clearance more than or equal to 1m that high-order pond 1 set up, high-order pond 1 is the concrete water tank.
It should be noted that the present invention relates to circuits, electronic components and modules, all of which are prior art, and that the present invention is fully capable of implementation by those skilled in the art, and does not relate to any improvement in software and methods.
The utility model provides a power station arc door side water seal lubricating water system's theory of operation as follows:
through field inspection, the following problems were found to exist:
1. the south sand hydropower station is in a low-valley high-temperature operation environment, and meanwhile, the lubricating and cooling of external lubricating water are not considered in the initial stage of the power station design, so that the dry abrasion of the side water seal is caused to influence the physical performance of the arc door water seal, the sealing performance of the arc door side water seal is reduced, and the service life of the arc door side water seal is shortened;
2. in the process of maintenance and lifting of the arc door, a temporary water pump is additionally arranged in the reservoir, and a fire hose and a water gun are used for spraying, so that the condition of uneven spraying of lubricating water can occur, and the lubricating effect is influenced;
3. the south sand hydropower station is a sediment-rich river, a temporary water pump is additionally arranged on a reservoir to take water with high sediment content, the water quality of the water serving as lubricating water is not up to standard, and the sediment in the water is deposited between a side water seal and an embedded part, so that the abrasion of the side water seal is accelerated;
4. spraying and lubricating the water seal at the side of the arc door manually, so that the operation is complicated, more workers are invested, and the efficiency is lower;
the scheme is mainly developed from four aspects of selection of lubricating water, configuration of pipelines, design and implementation of an automatic control spraying system, realizes linkage of side water seal lubricating cooling water and the radial gate, ensures the sealing performance of radial gate side water seal, and prolongs the service life of the radial gate water seal.
1. Selection of lubricating water
The water source of the lubricating water is taken from the original high-level water tank at the right section of the dam: 1m from the ground of the water tank is a concrete water tank of 4m.4m.2m, about 30 cubes can be stored in the water tank, and the water stored in the water tank is the penetrating water of a mountain and a dam, so that the water quality is clean and clean, and meets the water quality requirement of lubricating water;
2. pipe arrangement
The distance between the high-level water pond and the arc door # 1 is 95 meters, the distance between the high-level water pond and the arc door # 2 is 74 meters, and the distance between the high-level water pond and the arc door # 3 is 52.5 meters; according to the pressure and flow requirements of the lubricating water system, the main pipeline is made of DN50 stainless steel pipes, each branch pipeline is made of DN25 stainless steel pipes, and the spray pipe is made of DN25 stainless steel pipes. The spray pipes are installed in the same radian as the arc door, the total length is 6 meters, spray holes are arranged every 5cm, the aperture is 0.5cm, and the spray pipes and the embedded parts are installed at an angle of 15 degrees.
The water outlet pipe of the high-level water tank is directly connected with a lubricating pipeline and is led to the left side and the right side of each arc door through a dam cable trench; each radial gate is provided with a JLKQ 941F-169p DN25 AC220V stainless steel quick-opening electric ball valve.
3. Automatic spraying system (refer to fig. 5 in detail)
The automatic spraying system consists of a water tank liquid level monitor, a main valve, a pressure pump, a flow switch, an electric ball valve, a control cabinet and the like.
A drop-in type liquid level transmitter and a float switch are installed in the water tank, the real-time water level of the water tank is monitored, high and low water level alarm and extremely low water level pump stop signals are provided, the liquid level transmitter is mainly used, and the float switch is standby; the system is characterized in that opening and closing instructions are respectively sent to a spraying system control cabinet from a three-hole arc door control chamber, any arc door is opened and closed, a pressure pump and a corresponding branch pipe electric valve in the system are opened, and whether pipeline fluid and the pressure pump are normal or not is fed back through a flow switch state signal. The control cabinet is provided with an automatic mode and a local manual mode.
(a) Automatic control: after an operator clicks an arc door moving command (a door opening command or a door closing command), a spraying system collects a starting signal from an outlet relay of a PLC (programmable logic controller) of an arc door control system, the corresponding arc door spraying system is fed back to be put into operation, when the remote stop command clicked by the operator arrives, the spraying system automatically stops spraying after the arc door stops working for 30s (time can be automatically modified), and effective linkage between throwing and withdrawing of lubricating water and opening and closing of the arc door is realized.
(b) Manual control: the operating personnel independently operate the water system and the arc door system. When the arc door has an action requirement, an operator manually starts the spray system control cabinet in situ to start the corresponding arc door water spraying system, a corresponding arc door water spraying system start normal signal is to be fed back, then the corresponding arc door is manually started, after the arc door stops, the operator sends a corresponding arc door water spraying system stop command, and a corresponding arc door water spraying system action completion normal signal is fed back after the water spraying system action is completed.
Compared with the prior art, the utility model provides a power station radial gate side water seals lubricating water system has following beneficial effect:
the utility model provides a power station arc door side water seal lubricating water system:
1. adopt arc steel trickle branch pipe, guaranteed the reliability of trickle, what present trickle system adopted is the arc steel pipe, and the radian is unanimous with radial gate water seal radian, obtains under the circumstances of guaranteeing at the spray water pressure, can resist the interference of certain wind-force, makes even effectual spraying of water on the radial gate water seal, and more original manual work sprays and has great reliability and effect promotion.
2. The PLC automatic control device is adopted, the automation degree and the reliability of the system are guaranteed, the improved spraying system can realize automatic people throwing, manual operation is hardly needed, a human-computer interface is friendly, various parameters can be modified according to the actual situation on site, and the states of all components can be checked.
3. Through the program setting of the monitoring system, the spraying system and the arc door control system are effectively linked, the improved spraying system can realize remote independent control and arc door linkage control, and the requirements of remote control and unattended operation are met.
It should be noted that the device structure and the accompanying drawings of the present invention mainly describe the principle of the present invention, and in the technology of this design principle, the settings of the power mechanism, the power supply system, the control system, etc. of the device are not completely described, and the details of the power mechanism, the power supply system, and the control system can be clearly known on the premise that those skilled in the art understand the principle of the present invention.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a power station arc door side water seal lubricating water system which characterized in that includes:
high-order pond, trunk line, small transfer line and shower, high-order pond sets up and is located the dam body and is higher than ground department, the trunk line intercommunication is in on the high-order pond, the small transfer line intercommunication is in on the trunk line, the small transfer line sets up according to arc door quantity, the shower intercommunication is corresponding on the small transfer line, the shower sets up in groups, in groups the shower extends to the arc door both sides of dam mouth respectively.
2. The hydropower station arc door side water sealing lubricating water system according to claim 1, wherein the spray pipe is arranged at the same angle as the arc door, and a plurality of spray holes are formed in the spray pipe at equal intervals.
3. The hydropower station radial gate side water-tight lubricating water system according to claim 1, wherein a main valve, a pressure pump and a flow switch are sequentially arranged on the main pipeline from the high-level water pool, and an electric ball valve is arranged at the joint of the main pipeline and the branch pipeline.
4. The hydropower station radial gate side water-tight lubricating water system according to claim 1, wherein an embedded part is arranged in a dam opening of the dam body, and the embedded part is fixedly connected with the spray pipe.
5. The hydropower station radial gate side water-tight lubricating water system according to claim 1, wherein a water seal is arranged on one side of the radial gate, which is positioned on the spray hole of the spray pipe, and the water seal is mounted through a detachable fixing piece.
6. The hydropower station radial gate side water sealing lubricating water system according to claim 1, wherein the height of the high-level water tank is greater than or equal to 1m from the ground, and the high-level water tank is a concrete water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221572838.4U CN218116355U (en) | 2022-06-22 | 2022-06-22 | Hydropower station arc door side water sealing lubricating water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221572838.4U CN218116355U (en) | 2022-06-22 | 2022-06-22 | Hydropower station arc door side water sealing lubricating water system |
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| Publication Number | Publication Date |
|---|---|
| CN218116355U true CN218116355U (en) | 2022-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221572838.4U Active CN218116355U (en) | 2022-06-22 | 2022-06-22 | Hydropower station arc door side water sealing lubricating water system |
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| Country | Link |
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| CN (1) | CN218116355U (en) |
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2022
- 2022-06-22 CN CN202221572838.4U patent/CN218116355U/en active Active
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