CN217652903U - Device for cleaning coagulation pump filter screen on line - Google Patents
Device for cleaning coagulation pump filter screen on line Download PDFInfo
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- CN217652903U CN217652903U CN202220699275.9U CN202220699275U CN217652903U CN 217652903 U CN217652903 U CN 217652903U CN 202220699275 U CN202220699275 U CN 202220699275U CN 217652903 U CN217652903 U CN 217652903U
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- condensate pump
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Abstract
The utility model discloses a device of pump filter screen is congealed in online clearance relates to the condensate pump maintenance technical field of thermal power plant, including condenser, the main pipeline of congealing water and reserve condensate pump, the main pipeline of congealing water has first pipeline and second pipeline through four-way connector connection, and the middle section of first pipeline is provided with first control valve, and the other end of first pipeline is connected with first condensate pump, is connected with the third pipeline between the input of first condensate pump and the output of condenser. The utility model discloses, easy operation can realize on-line cleaning and congeal pump filter screen, has guaranteed the normal operating of whole work, has avoided the shut down that causes in the cleaning process even blowing out, has also avoided in the traditional cleaning process condenser to leak vacuum or the sequence mistake leads to the condenser to leak vacuum risk when closing first condensate pump sealing water and advance the return water, has reduced the cost of clearance greatly, has guaranteed the steady operation of various machinery.
Description
Technical Field
The utility model relates to a condensate pump of thermal power plant maintains technical field, especially relates to a device of pump filter screen is congealed in online clearance.
Background
Thermal power plant unit has higher requirement for steam and water quality, generally at the inlet of condensate pump of thermal power steam boiler, the impurity in the condensate system is eliminated by using filter screen to ensure normal operation of the condensate system and safety of the condensate pump, when fluid enters into the filter cartridge with certain specification filter screen, the impurity is blocked, the clean filtrate is discharged from the outlet of the filter, and the filter screen in long-term operation is easy to be blocked.
The existing method for cleaning the filter screen of the condensate pump pulls a power on the condensate pump, isolates an inlet valve of the condensate pump, an outlet valve of the condensate pump, a sealing water inlet valve of the condensate pump and a sealing water return valve of the condensate pump, opens a cover plate of the filter screen of the condensate pump by maintenance, sweeps the filter screen by compressed air after taking out the filter screen, then puts the filter screen back and starts to restore operation; however, the method is complicated and laborious to operate, once the method is not executed in place in the process of cleaning the filter screen to execute safety measures, the vacuum of the condenser is greatly influenced, so that the steam turbine can be tripped, meanwhile, the frequent cleaning of the filter screen can cause important auxiliary machines to lose standby, and during the cleaning of the filter screen by the standby condensate pump, the filter screen of the working pump is blocked, the shutdown and blowing-out events can be caused, and great hidden dangers are brought to the safe operation of a unit.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a device for cleaning a condensate pump filter screen on line.
In order to realize the purpose, the utility model adopts the following technical scheme:
the utility model provides a device of pump filter screen is congealed in online clearance, includes condenser, congeals water main line and reserve condensate pump, congeal water main line and have first pipeline and second pipeline through four-way connector connection, the middle section of first pipeline is provided with first control valve, the other end of first pipeline is connected with first condensate pump, first condensate pump's input with be connected with the third pipeline between the output of condenser, the third pipeline is followed first condensate pump extremely the direction of condenser has set gradually filter screen pipe, fifth pipeline and fifth control valve, the third pipeline is located filter screen pipe with there is the fourth pipeline through three-way connector connection between the first condensate pump, the middle section of fourth pipeline is provided with the third control valve, the other end of fourth pipeline through three-way connector with the second pipeline is connected, the middle section of second pipeline still is provided with the second control valve.
Preferably, the other end of the fifth pipeline is communicated with a ground sewage pipeline, and a fourth control valve is arranged in the middle section of the fifth pipeline.
Preferably, the spare condensate pump, the condensate header pipe and the other group of output ends of the condenser are also symmetrically provided with pipes and valves in the same connection mode relative to the second pipe.
Preferably, the inside wall fixed mounting of filter screen pipe congeals the pump filter screen, congeal the axle center department of pump filter screen and be connected with the axis of rotation through a set of waterproof bearing rotation, the outside wall fixed mounting of axis of rotation has the multiunit to encircle the drive blade that distributes.
Preferably, the driving vane presses close to one side of congealing the pump filter screen has seted up the spacing groove, movable blade has been cup jointed in the inside wall activity of spacing groove, multiunit circular recess has evenly been seted up to the inboard of spacing groove, the spacing loose axle that has cup jointed in the inside wall activity of circular recess, the loose axle extends to the inboard one end of circular recess with fixed mounting has compression spring between the driving vane, the other end of loose axle with movable blade fixed connection.
Preferably, the movable blade is provided with flexible bristles close to the arc-shaped surface of the coagulation pump filter screen.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the device is simple in operation, can realize on-line cleaning of the condenser pump filter screen, guarantees the normal operation of the whole work, avoids shutdown and even blowing out caused in the cleaning process, also avoids the risk that the condenser leaks vacuum in the traditional cleaning process or the condenser leaks vacuum due to sequence error when the first condensate pump sealing water is closed to enter the backwater, greatly reduces the cleaning cost, and guarantees the stable operation of various machines.
2. The brush hair that can drive movable blade surface through the drive of rivers clears up condensing the accumulational impurity of pump filter screen and the impurity in the straining hole, can effectively guarantee to condense the work efficiency of pump filter screen, prolong the jam of slow setting pump filter screen, and when condensing the pump filter screen and carry out online washing, drive blade rotates under the drive of reverse direction rivers, to condensing the plug in pump filter screen surface and the straining hole and cleaning, make things convenient for the rivers to wash away the plug that gets off of clearing up, the clean efficiency to condensing the pump filter screen has been improved greatly.
Drawings
Fig. 1 is a schematic structural view of an apparatus for cleaning a filter screen of a coagulation pump on line according to the present invention;
FIG. 2 is a schematic view of the inner structure of a screen pipe of the device for cleaning the screen of the coagulation pump on line according to the present invention;
fig. 3 is a schematic structural view of a driving blade of the device for cleaning a filter screen of a coagulation pump on line according to the present invention;
fig. 4 is the utility model provides a circular groove internal structure schematic diagram of the device of pump filter screen is congealed in online clearance.
In the figure: 1. a condenser; 2. a water condensation main pipeline; 3. a first condensate pump; 4. a condensate pump is reserved; 5. a first conduit; 6. a first control valve; 7. a second control valve; 8. a second conduit; 9. a third pipeline; 10. a fourth conduit; 11. a third control valve; 12. a fifth pipeline; 13. a fourth control valve; 14. a fifth control valve; 15. a filter screen pipe; 16. a coagulation pump filter screen; 17. a rotating shaft; 18. a driving blade; 19. a limiting groove; 20. a movable blade; 21. a circular groove; 22. a compression spring; 23. a movable shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-4, a device for cleaning a condensate pump filter screen on line comprises a condenser 1, a condensate main pipeline 2 and a standby condensate pump 4, wherein the condensate main pipeline 2 is connected with a first pipeline 5 and a second pipeline 8 through a four-way connector, a first control valve 6 is arranged at the middle section of the first pipeline 5, the other end of the first pipeline 5 is connected with a first condensate pump 3, a third pipeline 9 is connected between the input end of the first condensate pump 3 and the output end of the condenser 1, the third pipeline 9 is sequentially provided with a filter screen pipe 15, a fifth pipeline 12 and a fifth control valve 14 along the direction from the first condensate pump 3 to the condenser 1, the third pipeline 9 is positioned between the filter screen pipe 15 and the first condensate pump 3 and is connected with a fourth pipeline 10 through a tee joint, a third control valve 11 is arranged at the middle section of the fourth pipeline 10, the other end of the fourth pipeline 10 is connected with the second pipeline 8 through a tee joint, and a second control valve 7 is also arranged at the middle section of the second pipeline 8;
specifically, when the device normally works, water flows from the output end of the condenser 1 to the first condensate pump 3, the condensate pump filter screen 16 filters the passing water, and the fourth control valve 13, the filter screen pipe 15 and the second control valve 7 are all in a closed state.
As shown in fig. 1, the other end of the fifth pipe 12 is communicated with a ground sewage pipe, and a fourth control valve 13 is disposed at the middle section of the fifth pipe 12.
As shown in fig. 1, the spare condensate pump 4, the condensate header 2 and the other set of outlets of the condenser 1 are also symmetrically provided with pipes and valves connected in the same manner with respect to the second pipe 8.
As shown in fig. 2, the inner side wall of the filter screen pipe 15 is fixedly provided with a coagulation pump filter screen 16, the axis of the coagulation pump filter screen 16 is rotatably connected with a rotating shaft 17 through a set of waterproof bearings, and the outer side wall of the rotating shaft 17 is fixedly provided with a plurality of sets of driving blades 18 distributed in a surrounding manner.
As shown in fig. 2, a limiting groove 19 is formed in one side, close to the coagulation pump filter screen 16, of the driving blade 18, a movable blade 20 is movably sleeved on the inner side wall of the limiting groove 19, multiple groups of circular grooves 21 are uniformly formed in the inner side of the limiting groove 19, a movable shaft 23 is movably sleeved on the inner side wall of each circular groove 21 in a limiting manner, a compression spring 22 is fixedly installed between one end, extending to the inner side of each circular groove 21, of the movable shaft 23 and the driving blade 18, and the other end of the movable shaft 23 is fixedly connected with the movable blade 20.
As shown in FIG. 3, the movable vanes 20 are provided with flexible bristles proximate the arcuate face of the coagulation pump screen 16.
In the utility model, when the condensate pump filter screen 16 is blocked, the first condensate pump 3 is immediately stopped, the first control valve 6 and the fifth control valve 14 are closed, the standby condensate pump 4 and the fifth control valve 14 and the first control valve 6 which are symmetrically arranged on the pipeline at one side of the standby condensate pump 4 are opened, then the second control valve 7, the third control valve 11 and the fifth pipeline 12 at one side of the first condensate pump 3 are opened, at the moment, the water flows to the standby condensate pump 4 from the other output end of the condenser 1, when passing through the four-way interface of the condensate main pipeline 2, the water flows into the fourth pipeline 10 and the third pipeline 9 in sequence through the second pipeline 8, and simultaneously flows through the filter screen pipe 15 and finally flows into the ground drain pipe through the fifth pipeline 12, when water flows through the filter screen pipe 15, the water flows in the direction opposite to the normal working water flow direction, impurities in filter holes of the condensate pump filter screen 16 can be effectively cleaned efficiently, the standby condensate pump 4 can still work and operate normally in the whole working process, and compared with the traditional shutdown disassembly cleaning, the device is simple in operation, can clean the condensate pump filter screen 16 on line, ensures the normal operation of the whole working process, avoids shutdown and even furnace shutdown caused in the cleaning process, also avoids the risk of vacuum leakage of a condenser caused by vacuum leakage of the condenser in the traditional cleaning process or sequence error when the first condensate pump 3 seals water and returns water, greatly reduces the cleaning cost, and ensures the stable operation of various machines;
when the pump filter screen 16 is washed on line, the driving blade 18 rotates under the driving of reverse water flow, the surface of the pump filter screen 16 and the blockage in the filter hole are cleaned, the blockage cleaned blockage is conveniently washed away by the water flow, the cleaning efficiency of the pump filter screen 16 is greatly improved, meanwhile, under the elastic action of the compression spring 22, the movable blade 20 can be always pushed to be in contact with the surface of the pump filter screen 16, the bristles on the surface of the movable blade 20 can be in full contact with the pump filter screen 16, and the cleaning effect of the pump filter screen 16 is greatly improved.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a device of pump filter screen is congealed in online clearance, includes condenser (1), congeals water main pipe way (2) and reserve condensate pump (4), its characterized in that, congeal water main pipe way (2) have first pipeline (5) and second pipeline (8) through the cross connector connection, the middle section of first pipeline (5) is provided with first control valve (6), the other end of first pipeline (5) is connected with first condensate pump (3), the input of first condensate pump (3) with be connected with third pipeline (9) between the output of condenser (1), third pipeline (9) are followed first condensate pump (3) extremely the direction of condenser (1) has set gradually and has strained pipe (15), fifth pipeline (12) and fifth control valve (14), third pipeline (9) are located strain net pipe (15) with there is fourth pipeline (10) through the cross connector connection between first condensate pump (3), the middle section of fourth pipeline (10) is provided with third control valve (11), the other end of fourth pipeline (10) is provided with second control valve (8) through the cross connector connection.
2. An apparatus for cleaning a screen of a coagulation pump in-line according to claim 1, characterized in that the other end of the fifth pipeline (12) is communicated with a ground sewage pipeline, and a fourth control valve (13) is arranged at the middle section of the fifth pipeline (12).
3. The device for the on-line cleaning of condensate pump screens according to claim 1, characterized in that the spare condensate pump (4), the condensate header (2) and the other group of outlets of the condenser (1) are also symmetrically provided with pipes and valves of the same connection way with respect to the second pipe (8).
4. The device for cleaning the filter screen of the condensate pump on line as claimed in claim 1, wherein the inner side wall of the filter screen pipe (15) is fixedly provided with the condensate pump filter screen (16), the axis of the condensate pump filter screen (16) is rotatably connected with a rotating shaft (17) through a set of waterproof bearings, and the outer side wall of the rotating shaft (17) is fixedly provided with a plurality of sets of driving blades (18) distributed in a surrounding manner.
5. The device of claim 4, wherein the drive vane (18) is provided with a limit groove (19) on one side close to the coagulation pump filter screen (16), the inner side wall of the limit groove (19) is movably sleeved with the movable vane (20), the inner side of the limit groove (19) is uniformly provided with a plurality of groups of circular grooves (21), the inner side wall of the circular groove (21) is movably sleeved with a movable shaft (23), the movable shaft (23) extends to one end of the inner side of the circular groove (21) and the drive vane (18) is fixedly provided with a compression spring (22), and the other end of the movable shaft (23) is fixedly connected with the movable vane (20).
6. An apparatus for cleaning a gel pump screen on-line as claimed in claim 5 wherein the movable blade (20) is provided with flexible bristles proximate the arcuate face of the gel pump screen (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220699275.9U CN217652903U (en) | 2022-03-28 | 2022-03-28 | Device for cleaning coagulation pump filter screen on line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220699275.9U CN217652903U (en) | 2022-03-28 | 2022-03-28 | Device for cleaning coagulation pump filter screen on line |
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| Publication Number | Publication Date |
|---|---|
| CN217652903U true CN217652903U (en) | 2022-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220699275.9U Active CN217652903U (en) | 2022-03-28 | 2022-03-28 | Device for cleaning coagulation pump filter screen on line |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116428149A (en) * | 2023-04-04 | 2023-07-14 | 华能淮阴第二发电有限公司 | Condensate pump and condensate pump frequency converter operation method |
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2022
- 2022-03-28 CN CN202220699275.9U patent/CN217652903U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116428149A (en) * | 2023-04-04 | 2023-07-14 | 华能淮阴第二发电有限公司 | Condensate pump and condensate pump frequency converter operation method |
| CN116428149B (en) * | 2023-04-04 | 2024-02-23 | 华能淮阴第二发电有限公司 | Condensate pump and condensate pump frequency converter operation method |
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