CN203857451U - Boiler water discharge system convenient for open flushing - Google Patents

Boiler water discharge system convenient for open flushing Download PDF

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Publication number
CN203857451U
CN203857451U CN201420253936.0U CN201420253936U CN203857451U CN 203857451 U CN203857451 U CN 203857451U CN 201420253936 U CN201420253936 U CN 201420253936U CN 203857451 U CN203857451 U CN 203857451U
Authority
CN
China
Prior art keywords
lateral
water discharge
boiler
conveyance conduit
air preheater
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
Application number
CN201420253936.0U
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Chinese (zh)
Inventor
卢晓
汪潮洋
马辉
周若明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Hebei Electric Power Co Ltd
Hebei Electric Power Construction Adjustment Test Institute
Original Assignee
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Hebei Electric Power Co Ltd
Hebei Electric Power Construction Adjustment Test Institute
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Electric Power Research Institute of State Grid Hebei Electric Power Co Ltd, Hebei Electric Power Construction Adjustment Test Institute filed Critical State Grid Corp of China SGCC
Priority to CN201420253936.0U priority Critical patent/CN203857451U/en
Application granted granted Critical
Publication of CN203857451U publication Critical patent/CN203857451U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a boiler water discharge system convenient for open flushing. The boiler water discharge system comprises a vertical drain flash tank, a water collection tank, a steam condenser, an air preheater pool and a wastewater treatment system. The drain flash tank is connected with a supercritical once-through boiler unit and also connected with the water collection tank which is connected with the steam condenser. The middle of a delivery pipeline is connected with the air preheater pool through a branch pipe, and the air preheater pool is connected with the wastewater treatment system through a water discharge pipe. A standby water discharge pipe is connected on the delivery pipeline, and communicated with a catch basin. The boiler water discharge system is simple in structure, low in improvement cost and small in workload, the problem of unsmooth water discharge caused before a supercritical once-through boiler is put into operation and when cold flushing is performed for daily cold start can be solved effectively, wastewater overflowing is avoided, influence on the environment and damage to equipment are reduced, normal operation of the system is guaranteed, and time is not delayed.

Description

Be convenient to the discharging of boiler system that open type is rinsed
Technical field
The utility model relates to supercritical once-through boiler drainage system, is specially a kind of discharging of boiler system that open type is rinsed of being convenient to.
Background technology
Before supercritical once-through boiler is gone into operation and during daily cold start, all need to carry out cold conditions flushing, with the foreign material such as iron rust in scavenge system, at iron ion content, do not meet before circulation flushing, 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 considered 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: a kind of discharging of boiler system that open type is rinsed of being convenient to is provided, can solves open type flush discharge problem not in time, can meet the requirement that unit starting rinses.
The utility model adopts following technical scheme:
Be convenient to the discharging of boiler system that open type is rinsed, 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, by threeway, be connected with standby drainpipe, standby drainpipe is communicated with catch-basin, on described standby drainpipe, is provided with stop valve.
As the utility model, further improve, 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.
As the utility model, further improve, on described conveyance conduit, be provided with thief hatch.
As the utility model, further improve, on described water delivery recirculation conduit, be provided with atmospheric valve.
As the utility model, further improve, 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, before can effectively solving supercritical once-through boiler and going into operation and daily cold start carry out the problem of the impeded drainage that causes when cold conditions is rinsed, avoid waste water outflow, minimizing is on the impact of environment and the infringement to equipment, and assurance system is normally moved, and does not stall for time.
Accompanying drawing explanation
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 standby drainpipes, 16 catch-basins, 17 first laterals, 18 second laterals, 19 draining pumps, 20 Waste Water Treatments, 21 drainpipes, 22 arms, 23 threeways, 24 stop valves.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
The discharging of boiler system of being convenient to open type flushing as shown in Figure 1, 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, is 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, by threeway 23, be connected with standby drainpipe 15, standby drainpipe 15 is communicated with catch-basin 16, on described standby drainpipe 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.
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, when 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 air preheater pond 14 with condenser 13 respectively by conveyance conduit 8, during 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, when 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 standby drainpipe 15, 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, by standby drainpipe 15, drained in catch-basin 16, 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, by the valve on each pipeline and valve sets, realize the control of water (flow) direction.Described Waste Water Treatment 20 is prior art, is not native system inventive point place, so locate not do, repeats.
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 modifications 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. be convenient to the discharging of boiler system that open type is rinsed for one kind, 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 standby drainpipe (15) by threeway (23), and standby drainpipe (15) is communicated with catch-basin (16), is provided with stop valve (24) on described standby drainpipe (15).
2. be according to claim 1ly convenient to the discharging of boiler system that open type is rinsed, 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. the discharging of boiler system of being convenient to open type flushing according to claim 2, is characterized in that: on described conveyance conduit (8), be provided with thief hatch (9).
4. the discharging of boiler system of being convenient to open type flushing according to claim 3, is characterized in that: on described water delivery recirculation conduit (10), be provided with atmospheric valve (6).
5. according to the discharging of boiler system that open type is rinsed of being convenient to 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).
CN201420253936.0U 2014-05-19 2014-05-19 Boiler water discharge system convenient for open flushing Expired - Fee Related CN203857451U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420253936.0U CN203857451U (en) 2014-05-19 2014-05-19 Boiler water discharge system convenient for open flushing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420253936.0U CN203857451U (en) 2014-05-19 2014-05-19 Boiler water discharge system convenient for open flushing

Publications (1)

Publication Number Publication Date
CN203857451U true CN203857451U (en) 2014-10-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111594821A (en) * 2020-04-13 2020-08-28 中国能源建设集团广东省电力设计研究院有限公司 Boiler desuperheating water device and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111594821A (en) * 2020-04-13 2020-08-28 中国能源建设集团广东省电力设计研究院有限公司 Boiler desuperheating water device and method

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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: 20141001

Termination date: 20160519