CN114644408B - Water supply anti-blocking system - Google Patents
Water supply anti-blocking system Download PDFInfo
- Publication number
- CN114644408B CN114644408B CN202210342496.5A CN202210342496A CN114644408B CN 114644408 B CN114644408 B CN 114644408B CN 202210342496 A CN202210342496 A CN 202210342496A CN 114644408 B CN114644408 B CN 114644408B
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- Prior art keywords
- valve
- filter
- deaerator
- communicated
- output end
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 238000001914 filtration Methods 0.000 claims abstract description 47
- 238000001179 sorption measurement Methods 0.000 claims abstract description 28
- 238000011010 flushing procedure Methods 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 7
- 238000011001 backwashing Methods 0.000 claims description 6
- 239000002923 metal particle Substances 0.000 abstract description 16
- 238000003466 welding Methods 0.000 abstract description 11
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 8
- 239000002893 slag Substances 0.000 abstract description 8
- 238000004140 cleaning Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/14—Conveying liquids or viscous products by pumping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Abstract
The utility model discloses a water supply anti-blocking system, which comprises a condenser, a deaerator, a first filtering system, a second filtering system and a water supply pre-pump, wherein the deaerator is connected with the condenser; the output end of the condenser is communicated with the input end of the deaerator, and the condenser and the deaerator are internally provided with an adsorption device; the first filtering system and the second filtering system are arranged in parallel, the input ends of the first filtering system and the second filtering system are communicated with the output end of the deaerator, and the output end of the first filtering system and the output end of the second filtering system are communicated with the feed water pre-pump. According to the utility model, the adsorption device is adopted in the condenser and the deaerator, so that metal particles such as welding slag rust and the like can be effectively adsorbed, the metal particles are prevented from entering the system, and meanwhile, two sets of parallel filter systems are adopted, after one set of filter system is blocked, the other set of filter system can be immediately put into use, so that the blocked filter system can be cleaned without machine unit shutdown.
Description
Technical Field
The utility model relates to the technical field of thermal power generation, in particular to a water supply anti-blocking system.
Background
After the boiler and the steam pipeline are installed, the blowing pipe of the thermal power plant is required to be operated, and the welding slag rust, dust and oil stains in the pipeline are purged completely. Meanwhile, part of welding slag rust, dust, greasy dirt, sundries and the like exist in the water system such as condensate, water supply and the like in the valve and pipeline installation process. The clean management of installation construction is particularly important, and the damage of sundries to the safe operation of a boiler and a steam turbine is avoided. Because of the energy saving and consumption reduction requirements of newly built large-scale thermal power plants, a 100% full-capacity single-steam pump set design is generally adopted, and once a filter screen at the inlet of a pre-pump and a steam feed pump is blocked, the set is forced to stop running, so that the engineering operation and the production operation are affected.
The condenser, the low-pressure heater and the deaerator can generate metal particles such as welding slag rust in the pipeline welding and valve mounting processes, and the metal particles can not be removed 100% due to obstruction factors such as pipeline dead angles, elbows and valves when the system is used for low-flow flushing. In the running stage of the unit, because the flow of the system is increased, metal particles are blocked at inlet filter screens of the front pump and the steam pump.
The utility model patent with publication number of CN211836683U discloses a system of double filter screens at the inlet of a water supply front-end pump, and the system is used alternately by arranging double filter screens in parallel, so that the system of double filter screens at the inlet of the water supply front-end pump is smooth, and in addition, when a filtering system is blocked, shutdown treatment is not needed. However, there is no mention of how to reduce the clogging of the screen.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: solves the problem that the water supply system is easy to be blocked.
In order to solve the technical problems, the utility model provides the following technical scheme:
a water supply anti-blocking system comprises a condenser, a deaerator, a first filtering system, a second filtering system and a water supply pre-pump;
the output end of the condenser is communicated with the input end of the deaerator, and the condenser and the deaerator are internally provided with an adsorption device;
the first filtering system and the second filtering system are arranged in parallel, the input ends of the first filtering system and the second filtering system are communicated with the output end of the deaerator, and the output end of the first filtering system and the output end of the second filtering system are communicated with the feed water pre-pump.
The advantages are that: according to the utility model, the adsorption device is adopted in the condenser and the deaerator, so that metal particles such as welding slag rust and the like can be effectively adsorbed, the metal particles are prevented from entering the system, and meanwhile, two sets of parallel filter systems are adopted, after one set of filter system is blocked, the other set of filter system can be immediately put into use, so that the blocked filter system can be cleaned without machine unit shutdown.
Preferably, a plurality of the adsorption devices are fixedly arranged at the bottom of the deaerator;
the plurality of adsorption devices are arranged in two rows in the condenser and are respectively and fixedly arranged at the top and the bottom in the condenser.
Preferably, the adsorption device comprises a clamping groove and a magnetic rod; the clamping groove is arranged in the condenser and the deaerator; the magnetic rod is matched in the clamping groove.
Preferably, the clamping groove is L-shaped, and four clamping grooves are oppositely arranged to form a rectangular structure;
and a plurality of magnetic bars are fixedly assembled into a cuboid structure matched with the clamping groove.
Preferably, the height and the length of the clamping groove are one fourth of the height of the magnetic rod.
Preferably, the first filtration system comprises a first front valve, a first filter and a first rear valve;
the input end of the first filter is communicated with the output end of the deaerator through a first front valve, and the output end of the first filter is communicated with the input end of the water supply pre-pump through a first rear valve.
Preferably, a first back flushing system is further arranged at the first filter;
the first backwashing system comprises a first A stop valve, a first B stop valve, a first C stop valve and a first blowdown hopper;
one end of the first A stop valve is connected with the output end of the water supply pre-pump, and the other end of the first A stop valve is communicated with the output end of the first filter after passing through the first B stop valve;
one end of the first C stop valve is communicated with the input end of the first filter, and the other end of the first C stop valve is connected with the first blowdown hopper.
Preferably, the second filtration system comprises a second front valve, a second filter and a second rear valve;
the input end of the second filter is communicated with the output end of the deaerator through a second front valve, and the output end of the second filter is communicated with the input end of the water supply front pump through a second rear valve;
one end of the second front valve is connected to a communication pipeline between the first front valve and the deaerator; one end of the second back valve is connected with a communicating pipeline of the first back valve and the water supply front pump.
Preferably, a second backwashing system is further arranged at the second filter;
the second backwashing system comprises a second A stop valve, a second B stop valve, a second C stop valve and a second blowdown hopper;
one end of the second A stop valve is connected with the output end of the water supply pre-pump, and the other end of the second A stop valve is communicated with the output end of the second filter after passing through the second B stop valve;
one end of the second C stop valve is communicated with the input end of the second filter, and the other end of the second C stop valve is connected with the second blowdown hopper.
Preferably, a first condensate pump, a first front electromagnetic valve, a first rear electromagnetic valve, a second condensate pump, a second front electromagnetic valve and a second rear electromagnetic valve are further arranged between the condenser and the deaerator;
one end of the first condensate pump is communicated with one output end of the condenser through a first front electromagnetic valve, and the other end of the first condensate pump is communicated with the deaerator through a first rear electromagnetic valve;
one end of the second condensate pump is communicated with the other output end of the condenser through a second front electromagnetic valve, and the other end of the second condensate pump is connected to a pipeline through which the deaerator is communicated with the first rear electromagnetic valve through a second rear electromagnetic valve.
Compared with the prior art, the utility model has the beneficial effects that:
(1) According to the utility model, the adsorption device is adopted in the condenser and the deaerator, so that metal particles such as welding slag rust and the like can be effectively adsorbed, and the metal particles are prevented from entering the system.
(2) According to the utility model, two sets of filter systems connected in parallel are adopted, and after one set of filter system is blocked, the other set of filter system can be immediately put into use, so that the blocked filter system can be cleaned without machine unit shutdown.
(3) According to the utility model, the back flushing systems are respectively arranged at the first filter and the second filter, so that the filters can be effectively cleaned.
Drawings
FIG. 1 is a schematic illustration of the communication of a feedwater anti-clogging system in accordance with an embodiment of the present utility model;
FIG. 2 is a front view of an adsorption device according to an embodiment of the present utility model;
fig. 3 is a top view of an adsorption device according to an embodiment of the utility model.
Detailed Description
In order to facilitate the understanding of the technical scheme of the present utility model by those skilled in the art, the technical scheme of the present utility model will be further described with reference to the accompanying drawings.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1, the embodiment discloses a feedwater anti-blocking system, which comprises a condenser 1, a deaerator 2, an adsorption device 3, a first filtering system 4, a second filtering system 5 and a feedwater pre-pump 6.
The output end of the condenser 1 is communicated with the input end of the deaerator 2, and the condenser 1 and the deaerator 2 are internally provided with an adsorption device 3; the first filtering system 4 and the second filtering system 5 are arranged in parallel, the input ends of the first filtering system 4 and the second filtering system 5 are communicated with the output end of the deaerator 2, and the output end is communicated with the feed water pre-pump 6.
Referring to fig. 2 and 3, a plurality of adsorption devices 3 are fixedly installed at the bottom of the deaerator 2, and the plurality of adsorption devices 3 are arranged in two rows in the condenser 1 and are respectively fixedly installed at the top and the bottom in the condenser 1. In this embodiment, according to the sizes of the condenser 1 and the deaerator 2, two upper and lower rows of five adsorption devices 3 uniformly arranged are arranged in the condenser 1, and five adsorption devices 3 uniformly arranged are arranged at the bottom in the deaerator 2.
The adsorption device 3 comprises a clamping groove 31 and a magnetic rod 32; in this embodiment, the clamping groove 31 is L-shaped, and four clamping grooves 31 are oppositely arranged to form a rectangular structure and fixedly installed in the condenser 1 and the deaerator 2. Specifically, carbon steel materials which are the same as that of the condenser 1 and the deaerator 2 can be adopted, and the bottom edge is fixed in a spot welding mode. The plurality of magnetic bars 32 are assembled into a cuboid structure through cutting and welding, and the overall height and the width of the magnetic bars 32 are slightly smaller than the size of a manhole door, so that the iron scraps can be conveniently maintained and cleaned in the later period. The magnetic rod 32 is fixed with the corresponding clamping groove 31 in a clamping manner, and the fit clearance between the clamping groove 31 and the magnetic rod 32 is 8mm.
In some embodiments, the height and length of the slot 31 are each one-fourth the height of the bar 32. The clamping and cleaning of the adsorption device 3 are convenient.
In some embodiments, a first condensate pump 92, a first front solenoid valve 91, a first rear solenoid valve 93, a second condensate pump 95, a second front solenoid valve 94, and a second rear solenoid valve 96 are further provided between the condenser 1 and the deaerator 2.
One end of the first condensate pump 92 is communicated with one output end of the condenser 1 through a first front electromagnetic valve 91, and the other end is communicated with the deaerator 2 through a first rear electromagnetic valve 93; one end of the second condensate pump 95 is communicated with the other output end of the condenser 1 through a second front electromagnetic valve 94, and the other end is connected to a pipeline through which the deaerator 2 is communicated with the first rear electromagnetic valve 93 through a second rear electromagnetic valve 96.
In the embodiment, the adsorption device 3 is arranged at the hot well of the condenser 1 to primarily adsorb metal particles in the condensate water, so that the metal particles are prevented from entering the condensate water system. The condensate pump conveys the condensate in the condenser 1 to the deaerator 2, and the deaerator 2 is provided with an adsorption device 3 at the water inlet of the pre-pump for re-adsorption, so that metal particles are prevented from entering the water supply system to block the inlet filter screen of the pre-pump. Therefore, the adsorption device 3 can effectively adsorb metal particles such as welding slag rust and the like, and prevent the metal particles from entering the water supply system.
In this embodiment, two sets of filter systems are provided between the deaerator 2 and the feedwater pump 6.
Specifically, the first filtration system 4 includes a first front valve 41, a first filter 42, and a first rear valve 43.
The input end of the first filter 42 is communicated with the output end of the deaerator 2 through a first front valve 41, and the output end is communicated with the input end of the feedwater pre-pump 6 through a first rear valve 43.
The second filter system 5 comprises a second front valve, a second front valve of the second filter 51; 52 and a second rear valve 53.
A second filter 51 second front valve; the input end of 52 is communicated with the output end of the deaerator 2 through a second front valve, and the output end is communicated with the input end of the water supply pre-pump 6 through a second rear valve 53.
One end of the second front valve is connected to a communication pipeline between the first front valve 41 and the deaerator 2; one end of the second rear valve 53 is connected to a communication line between the first rear valve 43 and the feed water pump 6.
The first filtering system 4 and the second filtering system 5 are connected in parallel, and one set of the two filtering systems is conducted, and the other set of the two filtering systems is isolated, so that the first filtering system 4 is conducted and the second filtering system 5 is isolated when the embodiment is set to work normally for convenience of description.
In normal operation, the first front valve 41 and the first rear valve 43 of the first filtration system 4 are opened, and the second front valve and the second rear valve 53 of the second filtration system 5 are closed, at which time the first filtration system 4 is operating normally. Wherein the first filter 42 and the second filter 51 are second front valves; 52 comprises a filter screen, and when the pressure difference between two ends of the filter screen is 50KPa, a pressure difference high alarm value is set. When the pressure difference across the filter screen in the first filter 42 reaches 50KPa, it may be determined that the first filter 42 is in a blocked state, at this time, the first front valve 41 and the first rear valve 43 of the first filter system 4 are closed, the second front valve and the second rear valve 53 of the second filter system 5 are opened, and the first filter system 4 is closed, and the second filter system 5 starts to operate. Thus, during operation of the unit, the situation that the filter screen at the inlet of the feed water pre-pump 6 is blocked and forced to stop is completely avoided.
In some embodiments, a first backwash system 7 is also provided at first filter 42; first backwash system 7 includes a first A shut-off valve 71, a first B shut-off valve 72, a first C shut-off valve 73 and a first blowdown hopper 74; one end of the first A stop valve 71 is connected to the output end of the feed water pre-pump 6, and the other end of the first A stop valve is communicated with the output end of the first filter 42 after passing through the first B stop valve 72; one end of the first C shut-off valve 73 is in communication with the input of the first filter 42 and the other end is connected to a first blow down funnel 74.
A second filter 51 second front valve; a second backwash system 8 is also provided at 52; second backwash system 8 includes a second A shut-off valve 81, a second B shut-off valve 82, a second C shut-off valve 83 and a second blowdown hopper 84; one end of the second A stop valve 81 is connected with the output end of the water supply pre-pump 6, and the other end of the second A stop valve passes through the second B stop valve 82 and then is connected with a second front valve of the second filter 51; 52 is connected to the output end; one end of the second C stop valve 83 is connected with a second front valve of the second filter 51; 52 are connected at their inputs and at their other ends to a second blow down funnel 84.
Wherein the first blow down funnel 74 and the second blow down funnel 84 may be the same for material saving.
As described above, when the first filter system 4 is shut down due to a clog, the first filter 42 is back-flushed by the first back-flushing system 7. Specifically, when back flushing is performed, the first a stop valve 71, the first B stop valve 72 and the first C stop valve 73 are opened, the output end of the water supply pre-pump 6 is communicated with the output end of the first filter 42 after passing through the first a stop valve 71 and the first B stop valve 72, the input end of the first filter 42 is communicated with the first blow-off funnel 74 after passing through the first C stop valve 73, back flushing water flow is output from the output end of the water supply pre-pump 6, and back flushing water pressure is controlled to be 1.0-1.2 MPa to back flush a blocked filter screen in the first filter 42 for 10 minutes. After the back flushing is finished, the first filtering system 4 is put into use again, the second filtering system 5 is isolated, whether the pressure difference between two ends of the filter screen of the first filter 42 is normal or not is measured and observed, if the pressure difference is normal, the first filtering system 4 can be put into use again, and if the pressure difference is higher than 50KPa, the first filtering system 4 is isolated again and back flushing is carried out. The first filter 42 can be cleaned without disassembly, so that the labor intensity of workers is reduced, and the overall cleaning efficiency is improved.
In the embodiment, the adsorption device 3 is adopted in the condenser 1 and the deaerator 2, so that metal particles such as welding slag rust and the like can be effectively adsorbed, and the metal particles are prevented from entering the water supply system. Meanwhile, two sets of filter systems which are connected in parallel are adopted, after one set of filter system is blocked, the other set of filter system can be immediately put into use, so that the blocked filter system can be cleaned without machine unit shutdown. And a back flushing system is arranged to back flush the filter, so that the filter can be cleaned without disassembly, and the overall cleaning efficiency is improved.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
The above-described embodiments merely represent embodiments of the utility model, the scope of the utility model is not limited to the above-described embodiments, and it is obvious to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.
Claims (4)
1. A feedwater anti-clogging system characterized by: comprises a condenser (1), a deaerator (2), an adsorption device (3), a first filtering system (4), a second filtering system (5) and a water supply pre-pump (6);
the output end of the condenser (1) is communicated with the input end of the deaerator (2), and an adsorption device (3) is arranged in the condenser (1) and the deaerator (2);
the first filtering system (4) and the second filtering system (5) are arranged in parallel, the input ends of the first filtering system (4) and the second filtering system (5) are communicated with the output end of the deaerator (2), and the output end is communicated with the water supply pre-pump (6);
the plurality of adsorption devices (3) are fixedly arranged at the bottom of the deaerator (2);
the plurality of adsorption devices (3) are arranged in two rows in the condenser (1) and are respectively and fixedly arranged at the top and the bottom in the condenser (1);
the adsorption device (3) comprises a clamping groove (31) and a magnetic rod (32); the clamping groove (31) is arranged in the condenser (1) and the deaerator (2); the magnetic rod (32) is matched in the clamping groove (31);
the clamping grooves (31) are L-shaped, and four clamping grooves (31) are oppositely arranged to form a rectangular structure;
a plurality of magnetic rods (32) are fixedly assembled into a cuboid structure matched with the clamping groove (31);
a first condensate pump (92), a first front electromagnetic valve (91), a first rear electromagnetic valve (93), a second condensate pump (95), a second front electromagnetic valve (94) and a second rear electromagnetic valve (96) are further arranged between the condenser (1) and the deaerator (2);
one end of the first condensate pump (92) is communicated with one output end of the condenser (1) through a first front electromagnetic valve (91), and the other end of the first condensate pump is communicated with the deaerator (2) through a first rear electromagnetic valve (93);
one end of the second condensate pump (95) is communicated with the other output end of the condenser (1) through a second front electromagnetic valve (94), and the other end of the second condensate pump is connected to a pipeline communicated with the deaerator (2) and the first rear electromagnetic valve (93) through a second rear electromagnetic valve (96);
the first filtration system (4) comprises a first front valve (41), a first filter (42) and a first rear valve (43);
the input end of the first filter (42) is communicated with the output end of the deaerator (2) through a first front valve (41), and the output end of the first filter is communicated with the input end of the water supply pre-pump (6) through a first rear valve (43);
the second filtration system (5) comprises a second front valve (51), a second filter (52) and a second rear valve (53);
the input end of the second filter (52) is communicated with the output end of the deaerator (2) through a second front valve (51), and the output end of the second filter is communicated with the input end of the water supply pre-pump (6) through a second rear valve (53);
one end of the second front valve (51) is connected to a communication pipeline between the first front valve (41) and the deaerator (2); one end of the second rear valve (53) is connected to a communication pipeline between the first rear valve (43) and the water supply pre-pump (6).
2. The feedwater anti-clogging system of claim 1 wherein: the height and the length of the clamping groove (31) are one fourth of the height of the magnetic rod (32).
3. The feedwater anti-clogging system of claim 1 wherein: a first backwashing system (7) is further arranged at the first filter (42);
the first backwashing system (7) comprises a first A stop valve (71), a first B stop valve (72), a first C stop valve (73) and a first blowdown hopper (74);
one end of the first A stop valve (71) is connected to the output end of the water supply pre-pump (6) and the other end of the first A stop valve is communicated with the output end of the first filter (42) after passing through the first B stop valve (72);
one end of the first C stop valve (73) is communicated with the input end of the first filter (42), and the other end of the first C stop valve is connected with the first blowdown hopper (74).
4. The feedwater anti-clogging system of claim 1 wherein: a second backwashing system (8) is further arranged at the second filter (52);
the second back flushing system (8) comprises a second A stop valve (81), a second B stop valve (82), a second C stop valve (83) and a second blowdown hopper (84);
one end of the second A stop valve (81) is connected to the output end of the water supply pre-pump (6) and the other end of the second A stop valve is communicated with the output end of the second filter (52) after passing through the second B stop valve (82);
one end of the second C stop valve (83) is communicated with the input end of the second filter (52), and the other end of the second C stop valve is connected with the second blowdown hopper (84).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210342496.5A CN114644408B (en) | 2022-04-02 | 2022-04-02 | Water supply anti-blocking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210342496.5A CN114644408B (en) | 2022-04-02 | 2022-04-02 | Water supply anti-blocking system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114644408A CN114644408A (en) | 2022-06-21 |
| CN114644408B true CN114644408B (en) | 2023-11-28 |
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ID=81994712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210342496.5A Active CN114644408B (en) | 2022-04-02 | 2022-04-02 | Water supply anti-blocking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114644408B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207079045U (en) * | 2017-08-21 | 2018-03-09 | 陕西德信热能科技有限公司 | A kind of intelligence backwash electromagnetic filter |
| CN210187409U (en) * | 2019-05-14 | 2020-03-27 | 华电潍坊发电有限公司 | Magnetic bar iron removal device for filter screen at outlet of condenser hot well of power plant |
| CN211836683U (en) * | 2020-03-19 | 2020-11-03 | 中国大唐集团科学技术研究院有限公司华东电力试验研究院 | System for double filter screens of water supply pre-pump inlet |
| CN214360422U (en) * | 2020-10-10 | 2021-10-08 | 济宁华源热电有限公司 | Novel high-temperature heat supply network drainage recycling system |
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2022
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