CN203848269U - Drainage system for starting of supercritical once-through boilers - Google Patents
Drainage system for starting of supercritical once-through boilers Download PDFInfo
- Publication number
- CN203848269U CN203848269U CN201420253938.XU CN201420253938U CN203848269U CN 203848269 U CN203848269 U CN 203848269U CN 201420253938 U CN201420253938 U CN 201420253938U CN 203848269 U CN203848269 U CN 203848269U
- Authority
- CN
- China
- Prior art keywords
- lateral
- drainage system
- conveyance conduit
- supercritical once
- drainage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 230000002209 hydrophobic effect Effects 0.000 claims description 20
- 238000004065 wastewater treatment Methods 0.000 claims description 13
- 239000010865 sewage Substances 0.000 abstract 3
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000009466 transformation Effects 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 238000011010 flushing procedure Methods 0.000 description 10
- 239000002351 wastewater Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001351 cycling effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Abstract
The utility model relates to a drainage system for starting of supercritical once-through boilers. The drainage system comprises a vertical drain water expander, a water collection tank, a condenser, an air pre-heater pool and a sewage treatment system, wherein the drain water expander is connected with a supercritical once-through boiler unit and the water collection tank; the water collection tank is connected with the condenser; the middle of a conveying pipeline is connected with the air pre-heater pool through a branch pipe; the air pre-heater pool is connected with the sewage treatment system through a drainage pipe; a standby drainage pipe is connected to the conveying pipeline and communicated with a condensate pump pit. The drainage system is simple in structure, low in transformation cost and small in workload, the problem that drainage is not smooth before the supercritical once-through boilers are put into production or when cold washing is carried out for daily cold start can be effectively solved, sewage is prevented from overflowing, influence on environment and damage to equipment are reduced, normal operation of the drainage system is ensured, and time delay is avoided.
Description
Technical field
The utility model relates to a kind of supercritical once-through boiler and starts drainage system.
Background technology
Before supercritical once-through boiler is gone into operation and when daily cold start, all need to carry out cold conditions flushing, with foreign material such as the iron rust in scavenge system, do not meet before circulation flushing at iron ion content, need carry out open type flushing, a large amount of flushing waters need be discharged outside Unit Steam Water system.In the design of boiler manufacturer and designing institute, only consider at present draining when system is normally moved, and do not consider and the connection problem of other system, in unit debugging and normal start-up course, run into draining not in time pollution load of overflow environment, equipment flood bad, delayed the problems such as start-up time, between flush period, need special messenger to guard, take provisional emergency measure to meet startup drainage requirement.If change draining pump and underground pipe, expense is high, workload is large.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of supercritical once-through boiler to start drainage system, can solve open type flush discharge problem not in time, can meet the requirement that unit starting rinses.
The utility model adopts following technical scheme:
A kind of supercritical once-through boiler starts drainage system, it comprises vertical hydrophobic development unit, header tank, condenser, air preheater pond and Waste Water Treatment, described hydrophobic development unit is connected with Supercritical once-through boiler by hydrophobic pipeline, described hydrophobic development unit bottom is connected with header tank by curved tube, and described header tank is connected with condenser by conveyance conduit;
Described conveyance conduit is connected with header tank by water delivery recirculation conduit;
Described conveyance conduit middle part is connected with air preheater pond by arm, and air preheater pond is connected with Waste Water Treatment by drainpipe, on described drainpipe, is provided with draining pump;
On described conveyance conduit, be connected with drainpipe for subsequent use by threeway, drainpipe for subsequent use is communicated with condensate pump hole, on described drainpipe for subsequent use, be provided with stop valve, on described conveyance conduit, be connected with drainpipe for subsequent use by threeway, drainpipe for subsequent use is communicated with condensate pump hole, on described drainpipe for subsequent use, be provided with stop valve, condensate pump is cheated by pipeline and Waste Water Treatment, is provided with condensate water dredge pump on described pipeline.
Further improve as the utility model, on described conveyance conduit, be provided with the first lateral and the second lateral, conveyance conduit is connected with condenser by the first lateral and/or the second lateral, on described the first lateral, be provided with the first drainage pump, on the second lateral, be provided with the second drainage pump, described threeway is positioned at the downstream of the tie point of the first lateral and the second lateral.
Further improve as the utility model, on described conveyance conduit, be provided with thief hatch.
Further improve as the utility model, on described water delivery recirculation conduit, be provided with atmospheric valve.
Further improve as the utility model, described vertical hydrophobic development unit top is provided with thermometer, is provided with overflow pipe on header tank.
Good effect of the present utility model is as follows:
The utility model is simple in structure, improvement cost is low, workload is little, the problem of the impeded drainage causing before can effectively solving supercritical once-through boiler operation and when cold conditions flushing is carried out in daily cold start, avoid waste water outflow, reduce the impact on environment and the infringement to equipment, guarantee system is normally moved, and does not stall for time.
Brief description of the drawings
Accompanying drawing 1 is the utility model structural representation.
In the accompanying drawings: 1 vertical hydrophobic development unit, 2 hydrophobic pipelines, 3 thermometers, 4 header tanks, 5 curved tubes, 6 atmospheric valves, 7 overflow pipes, 8 conveyance conduits, 9 thief hatch, 10 water delivery recirculation conduits, 11 first drainage pumps, 12 second drainage pumps, 13 condensers, 14 air preheater ponds, 15 drainpipes for subsequent use, 16 condensate pump holes, 17 first laterals, 18 second laterals, 19 draining pumps, 20 Waste Water Treatments, 21 drainpipes, 22 arms, 23 threeways, 24 stop valves, 25 condensate water dredge pumps.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
A kind of supercritical once-through boiler as shown in Figure 1 starts drainage system, it comprises vertical hydrophobic development unit 1, header tank 4, condenser 13, air preheater pond 14 and Waste Water Treatment 20, described hydrophobic development unit 1 is connected with Supercritical once-through boiler by hydrophobic pipeline 2, described hydrophobic development unit 1 bottom is connected with header tank 4 by curved tube 5, and described header tank 4 is connected with condenser 13 by conveyance conduit 8.
Described conveyance conduit 8 is connected with header tank 4 by water delivery recirculation conduit 10; Described conveyance conduit 8 middle parts are connected with air preheater pond 14 by arm 22, and air preheater pond 14 is connected with Waste Water Treatment 20 by drainpipe 21, on described drainpipe 21, are provided with draining pump 19.Water delivery recirculation conduit 10 the examination cycling that can make system realize current is set.
On described conveyance conduit 8, be provided with the first lateral 17 and the second lateral 18, conveyance conduit 8 is connected with condenser 13 by the first lateral 17 and/or the second lateral 18, on described the first lateral 17, be provided with the first drainage pump 11, on the second lateral 18, be provided with the second drainage pump 12, on described conveyance conduit 8, be provided with thief hatch 9, convenient to the flushing water chemical examination of sampling.
On described conveyance conduit 8, be connected with drainpipe 15 for subsequent use by threeway 23, drainpipe 15 for subsequent use is communicated with condensate pump hole 16, on described drainpipe for subsequent use 15, be provided with stop valve 24, described threeway 23 is positioned at the downstream of the tie point of the first lateral 17 and the second lateral 18, condensate pump hole 16 is by pipeline and Waste Water Treatment 20, on described pipeline, be provided with condensate water dredge pump 25, as shown in the figure, described condensate water dredge pump 25 is in parallel two.
On described water delivery recirculation conduit 10, be provided with atmospheric valve 6, during to system water filling, can get rid of ducted air.Described vertical hydrophobic development unit 1 top is provided with thermometer 3, is provided with overflow pipe 7 on header tank 4, in the time that the water level of header tank 4 is too high, can Auto-drainage, and avoid header tank 4 pressure-bearings excessive.
The flushing water of Supercritical once-through boiler enters into hydrophobic development unit 1 by hydrophobic pipeline 2, the isolated vapour of dilatation is entered in atmosphere by top, water enters into header tank 4 by curved tube 5, by various hydrophobic collection the in flushing water and unit starting process, water in header tank 4 is connected with condenser 13 and air preheater pond 14 respectively by conveyance conduit 8, when flushing, at sample tap 9 place's sample examinations, underproof water enters air preheater pond 14, draining pump 19 is delivered to waste water in Waste Water Treatment 20 and is processed by drainpipe 21, in the time that draining pump 19 can not be drained the waste water in air preheater pond 14 in time, close the valve that is positioned at condenser 13 entrance front ends on conveyance conduit 8, open the stop valve on drainpipe 15 for subsequent use, start the first drainage pump 11 and the second drainage pump 12, after making waste water via the first lateral 17 and the second lateral 18, drained in catch-basin condensate pump hole 16 by drainpipe 15 for subsequent use, condensate pump hole 16 is sent to waste water in Waste Water Treatment 20 and processes by two condensate water dredge pumps 25, avoid waste water excessive, contaminated environment, damage equipment.After sample examination is qualified, qualified water enters into condenser 13 by the first lateral 17 and/or the second lateral 18, realizes normal flushing, the startup of unit.
In system, realize the control of water (flow) direction by the valve on each pipeline and valve sets.Described Waste Water Treatment 20 is prior art, is not native system inventive point place, repeats so locate not do.
Finally it should be noted that: above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record previous embodiment is modified, or part technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of the utility model embodiment technical scheme.
Claims (5)
1. a supercritical once-through boiler starts drainage system, it is characterized in that: it comprises vertical hydrophobic development unit (1), header tank (4), condenser (13), air preheater pond (14) and Waste Water Treatment (20), described hydrophobic development unit (1) is connected with Supercritical once-through boiler by hydrophobic pipeline (2), described hydrophobic development unit (1) bottom is connected with header tank (4) by curved tube (5), and described header tank (4) is connected with condenser (13) by conveyance conduit (8);
Described conveyance conduit (8) is connected with header tank (4) by water delivery recirculation conduit (10);
Described conveyance conduit (8) middle part is connected with air preheater pond (14) by arm (22), and air preheater pond (14) are connected with Waste Water Treatment (20) by drainpipe (21), are provided with draining pump (19) on described drainpipe (21);
Described conveyance conduit (8) is upper is connected with drainpipe for subsequent use (15) by threeway (23), drainpipe for subsequent use (15) is communicated with condensate pump hole (16), on described drainpipe for subsequent use (15), be provided with stop valve (24), condensate pump hole (16), by pipeline and Waste Water Treatment (20), is provided with condensate water dredge pump (25) on described pipeline.
2. a kind of supercritical once-through boiler according to claim 1 starts drainage system, it is characterized in that: on described conveyance conduit (8), be provided with the first lateral (17) and the second lateral (18), conveyance conduit (8) is connected with condenser (13) by the first lateral (17) and/or the second lateral (18), on described the first lateral (17), be provided with the first drainage pump (11), on the second lateral (18), be provided with the second drainage pump (12), described threeway (23) is positioned at the downstream of the tie point of the first lateral (17) and the second lateral (18).
3. a kind of supercritical once-through boiler according to claim 2 starts drainage system, it is characterized in that: on described conveyance conduit (8), be provided with thief hatch (9).
4. a kind of supercritical once-through boiler according to claim 3 starts drainage system, it is characterized in that: on described water delivery recirculation conduit (10), be provided with atmospheric valve (6).
5. start drainage system according to a kind of supercritical once-through boiler described in claim 1-4 any one, it is characterized in that: described vertical hydrophobic development unit (1) top is provided with thermometer (3), is provided with overflow pipe (7) on header tank (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420253938.XU CN203848269U (en) | 2014-05-19 | 2014-05-19 | Drainage system for starting of supercritical once-through boilers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420253938.XU CN203848269U (en) | 2014-05-19 | 2014-05-19 | Drainage system for starting of supercritical once-through boilers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203848269U true CN203848269U (en) | 2014-09-24 |
Family
ID=51561280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420253938.XU Expired - Fee Related CN203848269U (en) | 2014-05-19 | 2014-05-19 | Drainage system for starting of supercritical once-through boilers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203848269U (en) |
-
2014
- 2014-05-19 CN CN201420253938.XU patent/CN203848269U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20160519 |