CN208269718U - Fang Niyan for thermal power plant circulating water cooling tower collecting-tank - Google Patents

Abstract

The utility model discloses a kind of Fang Niyan for thermal power plant circulating water cooling tower collecting-tank, including round collecting-tank, collecting-tank is located at the lower section of cooling tower, the side of collecting-tank is equipped with the water outlet with coarse net grid, first of anti-mud weir is equipped in the collecting-tank on the inside of water outlet and the anti-mud weir of second, anti-mud weir are poured using armored concrete；Bottom between first of anti-mud weir and the anti-mud weir of second is provided with the gradient that periphery is high, centre is low, the groove for collecting settled sludge is equipped among bottom, mud discharging pump is equipped in groove, mud discharging pump is connect by pipeline with the sludge collecting tank being located at outside collecting-tank.The anti-mud weir can slow down the disturbance of circulating water tower bottom of pond portion water, while precipitate the impurity such as sludge in water, by the interception on anti-mud weir, can effectively prevent sludge and enter circulating water passage.

Description

Fang Niyan for thermal power plant circulating water cooling tower collecting-tank

Technical field

The utility model relates to thermal power plant circulating water cooling towers, and in particular to one kind is used for thermal power plant recirculated water The Fang Niyan of cooling tower collecting-tank.

Background technique

The recirculated water in thermal power plant is using flowing of the air in cooling tower from bottom to top, by the heat band of recirculated water It walks to achieve the purpose that cooling.The circulating water cooling tower in thermal power plant is in operation due to the dust in air, sand and dust, particle meeting It is brought into recirculated water, then under the action of microorganism, absorption generates sludge, even more serious in the big area of dust storm.

The sludge of generation easily enters circulating water passage with water flow, and on the one hand these sludge are deposited in the entrance of circulating pump, makes At cycle water muddiness, each equipment cooling effect weakens, and influences unit efficiency；On the other hand these sludge are adhered to water circulating pump On impeller, water circulating pump power output is reduced, or even will cause the blocking of water circulating pump suction inlet, seriously affects the normal of water circulating pump Operational efficiency.

The Chinese patent of Publication No. CN201266022 discloses a kind of sand protecting and dust removing device for cooling tower, and device includes Spoil disposal pond by transformation, the construction in spoil disposal pond are as follows: in pond, bottom of pond is disposed with Ji Nigou in a crisscross manner, in Ji Nigou It is interior to be disposed with sludge pipe along channel direction, the spoil disposal branch pipe of depth extension is provided on sludge pipe, spoil disposal branch pipe extends to outside tower Silt pond, spoil disposal branch pipe implements its opening and closing by control valve.But this method is first is that investment is larger；Second is that spoil disposal branch pipe and control Cleaning difficulty is big after blocking occurs in valve processed；Third is that cooling water not yet precipitates just possibly into circulating water passage, reach Less than corresponding effect.

Summary of the invention

The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of for thermal power plant recirculated water cooling But the Fang Niyan of tower collecting-tank, for precipitating, intercepting sludge in tower basin, the influence by sludge to circulation is preferably minimized, Solve the problems, such as that sludge cleaning workload is greatly in runner and cleaning is difficult simultaneously.

The technical solution of the utility model thus are as follows: for the Fang Niyan of thermal power plant circulating water cooling tower collecting-tank, Including round collecting-tank, collecting-tank is located at the lower section of cooling tower, and the side of collecting-tank is equipped with the water outlet with coarse net grid, water outlet It is circulating water passage outside mouthful, it is characterised in that: be equipped with first of anti-mud weir in the collecting-tank on the inside of water outlet and second is anti- Mud weir.

Preferably, the diameter of the collecting-tank is 130 meters, first of anti-mud weir is at a distance from collecting-tank water outlet 4m, the anti-mud weir of second are 2m at a distance from collecting-tank water outlet.

Preferably, first of anti-mud weir, the anti-mud weir of second are poured using armored concrete, it is highly 200mm- 300mm。

It is stretched out preferably, the top on first of anti-mud weir and the anti-mud weir of second is equipped with far from the side of water outlet Outer eaves, between outer eaves and the weir wall on anti-mud weir use arc-shaped transition.

Preferably, what the height on first of anti-mud weir, the anti-mud weir of second was run lower than circulating water tower collecting-tank Lower bound water level.

Preferably, the bottom between first of anti-mud weir and the anti-mud weir of second is set as, periphery is high, centre is low The gradient, middle position is equipped with groove for collecting settled sludge, is equipped with mud discharging pump in groove, mud discharging pump passes through Pipeline is connect with the sludge collecting tank being located at outside collecting-tank.

The utility model has the advantages that

The utility model effectively settles the soil in cooling water by the anti-mud weir of twice, and anti-mud weir sets the outer eaves of arc-shaped transition Soil can be stopped to flow away with water and be conducive to settle, the bottom between the anti-mud weir of twice is provided with the gradient and groove, convenient for concentrating Cleaning, while sludge collecting tank is transported to by mud discharging pump, reduce labor intensity.

1, the normal operation of water circulating pump is neither influenced after increasing anti-mud weir, and can effectively prevent the bottom in tower basin miscellaneous Matter and sludge are flushed in runner.

2, increase behind anti-mud weir water flow stationary before coarse net grid, and bottom disturbance reduces in tower basin, is easy to sludge settling In tower basin.

3, the sludge in runner can be effectively reduced behind the anti-mud weir of increase, mitigate runner cleaning workload, it is difficult to reduce cleaning Degree.

4, it can effectively improve circulating water quality after increasing anti-mud weir, guarantee equipment heat transfer effect, recirculated water can be effectively reduced Electric current is pumped, unit vacuum is improved, reduces coal consumption.

5, condenser condensed water in-tube fouling can be effectively reduced after increasing anti-mud weir, improves condenser terminal difference, increases unit Efficiency is increased economic efficiency.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the structure chart of the outer eaves of anti-mud weir top side of the utility model.

It is as shown in the figure: 1, collecting-tank；2, water outlet；3, circulating water passage；4, first of anti-mud weir；5, the anti-mud of second Weir；6, groove；7, outer eaves；8, mud discharging pump.

Specific embodiment

The utility model is as shown in Figure 1 and Figure 2:

For the Fang Niyan of thermal power plant circulating water cooling tower collecting-tank, including circular collecting-tank 1, collecting-tank 1 is straight Diameter is 130 meters, and collecting-tank 1 is located at the lower section of cooling tower, and the side of collecting-tank 1 is equipped with the water outlet 2 with coarse net grid, water outlet It is circulating water passage 3 outside 2；It is equipped with first of anti-mud weir 4 at the water outlet 4m apart from collecting-tank 1, is discharged apart from collecting-tank The anti-mud weir 5 of second is equipped at 2 meters of mouth, first of anti-mud weir 4, the anti-mud weir 5 of second are poured using armored concrete, are highly 300mm, this is highly lower than the lower bound water level of the operation of circulating water cooling tower collecting-tank 1.

First of anti-mud weir 4, anti-5 top of mud weir of second are equipped with the outer eaves 6 of stretching far from the side of water outlet 3, outside Eaves 6 and first of anti-mud weir 4, the anti-mud weir 5 of second weir wall between use arc-shaped transition.

Bottom between first of anti-mud weir 4 and the anti-mud weir 5 of second is set as the gradient that periphery is high, centre is low, Middle position is equipped with the groove 7 for collecting settled sludge, is equipped with mud discharging pump 8 in groove 7, mud discharging pump 8 passes through pipe Road is connect with the sludge collecting tank being located at outside collecting-tank.

Claims (9)

1. being used for the Fang Niyan of thermal power plant circulating water cooling tower collecting-tank, including round collecting-tank, collecting-tank is located at cooling The lower section of tower, the side of collecting-tank are equipped with the water outlet with coarse net grid, are circulating water passage outside water outlet, it is characterised in that: First of anti-mud weir and the anti-mud weir of second are equipped in the collecting-tank on the inside of water outlet.

2. being used for the Fang Niyan of thermal power plant circulating water cooling tower collecting-tank according to claim 1, it is characterised in that: institute State collecting-tank diameter be 130 meters, first of anti-mud weir with collecting-tank water outlet at a distance from be 4m, the anti-mud weir of second with catchment The distance of pond water outlet is 2m.

3. the Fang Niyan according to claim 1 or claim 2 for thermal power plant circulating water cooling tower collecting-tank, feature exist In: first of anti-mud weir is poured using armored concrete, is highly 200mm-300mm.

4. being used for the Fang Niyan of thermal power plant circulating water cooling tower collecting-tank according to claim 3, it is characterised in that: the Anti- mud weir crest portion is equipped with the outer eaves stretched out far from the side of water outlet together, and arc mistake is used between outer eaves and the weir wall on anti-mud weir It crosses.

5. the Fang Niyan according to claim 1 or claim 2 for thermal power plant circulating water cooling tower collecting-tank, feature exist In: the anti-mud weir of second is poured using armored concrete, is highly 200mm-300mm.

6. being used for the Fang Niyan of thermal power plant circulating water cooling tower collecting-tank according to claim 5, it is characterised in that: the Two anti-mud weir crest portions are equipped with the outer eaves stretched out far from the side of water outlet, and arc mistake is used between outer eaves and the weir wall on anti-mud weir It crosses.

7. being used for the Fang Niyan of thermal power plant circulating water cooling tower collecting-tank according to claim 3, it is characterised in that: institute The height for stating first of anti-mud weir is lower than the lower bound water level of circulating water tower collecting-tank operation.

8. being used for the Fang Niyan of thermal power plant circulating water cooling tower collecting-tank according to claim 5, it is characterised in that: institute The height for stating the anti-mud weir of second is lower than the lower bound water level of circulating water tower collecting-tank operation.

9. the Fang Niyan according to claim 1 or claim 2 for thermal power plant circulating water cooling tower collecting-tank, feature exist In: the bottom between first of anti-mud weir and the anti-mud weir of second is set as the gradient that periphery is high, centre is low, middle position Equipped with the groove for collecting settled sludge, it is equipped with mud discharging pump in groove, mud discharging pump is catchmented by pipeline with being located at Sludge collecting tank connection outside pond.