The arrangement of Boiler water Feeding System system
[technical field]
The utility model belongs to engineering field, relates to a kind of arrangement of Boiler water Feeding System system.
[background technology]
Boiler water Feeding System system is an independently system in large-size thermal power plant, and its major function is to provide qualified make up water for boiler.In conventional design, it is arranged as an independently structure region, layout be Boiler water Feeding System chamber, chemical examination building, outside water box and waste water comprehensive between.
Boiler water Feeding System chamber is from the distance of main building substantially in the scope of 150m~300m, and the conveyance conduit between boiler feed water system and main building has following a few class:
1) the normal make up water pipeline of unit: 1, Φ 133x4-304SS(1 machine);
2) startup accident make up water pipeline: 1, Φ 325x6-304SS(2 machine);
3) unboiled water steam pipeline (trace): 1, Φ 89x4-304SS(2 machine);
4) condensate system backwash water pipeline: 1, Φ 219x6-304SS(2 machine);
5) condensate system flushing water pipeline: 1, Φ 159x4.5-304SS(2 machine).
Existing Boiler water Feeding System system and main building independently arrange, distant, not only take plant area's area large, and the engineering quantity of conveyance conduit is large, strengthen construction investment and the running cost of steam power station.
[utility model content]
The purpose of this utility model is to provide the arrangement of a kind of convenience, reliable, economic Boiler water Feeding System system, to solve the problems of the technologies described above.
To achieve these goals, the utility model adopts following technical scheme:
The arrangement of Boiler water Feeding System system, comprises steam turbine building and the deaerator bay of adjacent setting, and steam turbine building and deaerator bay are monolithic concrete frame construction; Steam turbine building comprises first floor, the second layer and the 3rd layer; The first floor of steam turbine building is furnished with raw water pump, filtered water tank, ultrafiltration apparatus roots blower, one-level fresh-water tank, two-pass reverse osmosis high-pressure pump, counter-infiltration flush water pump, secondary fresh-water tank, EDI feed pump, desalination water pump, condensate water flush water pump, condensate water backwash water pump, counter-infiltration ultrafiltration cleaning unit, waste water storage and supply unit; The second layer is furnished with ultrafiltration cartridge filter, ultrafiltration apparatus, first-stage reverse osmosis cartridge filter, first-stage reverse osmosis high-pressure pump and first-stage reverse osmosis device; The 3rd layer is furnished with second level reverse osmosis apparatus, EDI cartridge filter and EDI device.
The utility model further improves and is: the 3rd layer is also furnished with chemical laboratory, site office, control room and storeroom.
The utility model further improves and is: on the second layer and the 3rd layer, be equipped with and hang thing hole.
The utility model further improves and is: the outer setting of adjacent steam turbine building has raw water tank, ultrafiltration water tank, sweet-water tank and compressed air hold-up tank.
The utility model further improves and is: in deaerator bay, be furnished with oxidant dosing unit, reducing agent dosing unit, antisludging agent dosing unit, alkali dosing unit and sour dosing unit.
The utility model further improves and is: the absolute altitude of first floor is ± 0.00 meter, and the absolute altitude of the second layer is 5.7 meters, and the absolute altitude of the 3rd layer is 11.4 meters.
The utility model further improves and is: in the first floor of steam turbine building, the embedded depth of foundation of all water pumps, blower fan and water tank is-1.5m.
The utility model further improves and is: the embedded depth of foundation of described raw water tank, ultrafiltration water tank and sweet-water tank is-1.5m.
With respect to prior art, the utlity model has following beneficial effect:
(1) by Boiler water Feeding System system layout in main building-steam turbine building and side, make full use of the usefull space of main building-steam turbine building inside, reduce full factory and take up an area index.
(2) reduce quantity and the floor space of full factory structure, do not need to arrange Boiler water Feeding System region.
(3) piping feeding distance such as demineralized water pipeline (the normal make up water of unit, startup accident make up water), steam pipeline, backwash water pipeline, flushing water pipeline shortens 200m~300m, the rated lift of pump reduces and pipe works amount reduces in a large number, has saved construction investment and running cost.
(4) reduce the earth volume of the backfill after main building 0m layer excavation.
(5) low, the good energy-conserving effect of system operation cost.
[accompanying drawing explanation]
Fig. 1 is 0 meter of layer plane arrangement diagram of steam turbine building of the arrangement of the utility model Boiler water Feeding System system;
Fig. 2 is 5.7 meters of layer plane arrangement diagrams of steam turbine building of the arrangement of the utility model Boiler water Feeding System system;
Fig. 3 is 11.4 meters of layer plane arrangement diagrams of steam turbine building of the arrangement of utility model Boiler water Feeding System system.
Wherein 1 is raw water tank; 2 is raw water pump; 3 is ultrafiltration cartridge filter; 4 is ultrafiltration apparatus; 5 is ultrafiltration water tank; 6 is filtered water tank; 7 is ultrafiltration apparatus roots blower; 8 is first-stage reverse osmosis cartridge filter; 9 is first-stage reverse osmosis high-pressure pump; 10 is first-stage reverse osmosis device; 11 is one-level fresh-water tank; 12 is two-pass reverse osmosis high-pressure pump; 13 is counter-infiltration flush water pump; 14 is second level reverse osmosis apparatus; 15 is secondary fresh-water tank; 16 is EDI feed pump; 17 is EDI cartridge filter; 18 is EDI device; 19 is sweet-water tank; 20 is desalination water pump; 21 is condensate water flush water pump; 22 is condensate water backwash water pump; 23 is oxidant dosing unit; 24 is reducing agent dosing unit; 25 is antisludging agent dosing unit; 26 is alkali dosing unit; 27 is sour dosing unit; 28 is counter-infiltration ultrafiltration cleaning unit; 29 is compressed air hold-up tank; 30 is waste water storage and supply unit.
[specific embodiment]
Below in conjunction with accompanying drawing, the present invention is described in further detail:
Refer to shown in Fig. 1, the arrangement of a kind of Boiler water Feeding System system of the utility model, comprises steam turbine building and deaerator bay, and steam turbine building one side is adjacent with deaerator bay, and steam turbine building outside is adjacent with outdoor (A is exclusive); Steam turbine building and deaerator bay are monolithic concrete frame construction, horizontal frame bent structure, longitudinal pure framed plate structure; Steam turbine building comprises 0 meter of layer, 5.7 meters of layers and 11.4 meters of layers.
0 meter of layer of steam turbine building is furnished with raw water pump 2, filtered water tank 6, ultrafiltration apparatus roots blower 7, one-level fresh-water tank 11, two-pass reverse osmosis high-pressure pump 12, counter-infiltration flush water pump 13, secondary fresh-water tank 15, EDI feed pump 16, desalination water pump 20, condensate water flush water pump 21, condensate water backwash water pump 22, counter-infiltration ultrafiltration cleaning unit 28, waste water storage and supply unit 30.
5.7 meters of layers of steam turbine building are furnished with ultrafiltration cartridge filter 3, ultrafiltration apparatus 4, first-stage reverse osmosis cartridge filter 8, first-stage reverse osmosis high-pressure pump 9 and first-stage reverse osmosis device 10.
11.4 meters of layers of steam turbine building are furnished with second level reverse osmosis apparatus 14, EDI cartridge filter 17, EDI device 18, chemical laboratory, site office, control room and storeroom.
On 5.7 meters of layers of steam turbine building and 11.4 meters of layers of steam turbine building, be equipped with and hang thing hole.
Exclusive raw water tank 1, ultrafiltration water tank 5, sweet-water tank 19 and the compressed air hold-up tank 29 of being provided with of A of steam turbine building.
0 meter of layer of deaerator bay is furnished with oxidant dosing unit 23, reducing agent dosing unit 24, antisludging agent dosing unit 25, alkali dosing unit 26 and sour dosing unit 27.
In the utility model, Boiler water Feeding System system adopts ultra filtering reverse osmosis to power up desalination (full embrane method) treatment process, and concrete technology flow process is: raw water tank → raw water pump → ultrafiltration cartridge filter → ultrafiltration apparatus → filtered water tank → first-stage reverse osmosis feed pump → first-stage reverse osmosis cartridge filter → first-stage reverse osmosis high-pressure pump → first-stage reverse osmosis device → first-stage reverse osmosis fresh-water tank → two-pass reverse osmosis high-pressure pump → second level reverse osmosis apparatus → secondary fresh-water tank → EDI device → sweet-water tank → desalination water pump → condensate system.
Design elevation ± 0.00 meter of steam turbine building terrace, outdoor absolute altitude-0.30 meter, 0 meter of layer of steam turbine building is provided with underground pipe canal, cable trench.Steam turbine building 0 meter of all water pumps of layer, blower fan, medicine machine and water tank embedded depth of foundation are at-1.5m; The buried depth on outside water box basis is at-1.5m; The cutting depth of steam turbine building and outdoor section is-13.5m to produce thus corresponding excavation and stemming operation amount.
If Boiler water Feeding System is arranged in steam turbine building-deoxygenation framework 0m, can not have influence on the layout of steam turbine building therrmodynamic system pipeline and heat power equipment, can make full use of again in steam turbine building-deoxygenation framework effective space and reduce the earth volume of steam turbine building-deoxygenation framework backfill.
The normal make up water pipeline of unit, startup accident make up water pipeline, unboiled water steam pipeline (trace), condensate system backwash water pipeline, condensate system flushing water pipeline are directly directly drawn and connect by the 0m layer of steam turbine building.
The draining of 5.7m layer, 11.4m layer is drawn and is received in 0m layer wastewater disposal basin by gutter and drainage pipe.
Above content is in conjunction with concrete preferred embodiment further description made for the present invention; can not assert that the specific embodiment of the present invention only limits to this; for general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to the present invention and determine scope of patent protection by submitted to claims.