CN207066233U - A kind of efficiently alkali cleaning thermal power generation unit is cleaned with air preheater plus alkali system - Google Patents
A kind of efficiently alkali cleaning thermal power generation unit is cleaned with air preheater plus alkali system Download PDFInfo
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- CN207066233U CN207066233U CN201720699330.3U CN201720699330U CN207066233U CN 207066233 U CN207066233 U CN 207066233U CN 201720699330 U CN201720699330 U CN 201720699330U CN 207066233 U CN207066233 U CN 207066233U
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- alkali
- air preheater
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Abstract
It the utility model is related to a kind of efficiently alkali cleaning thermal power generation unit and cleaned with air preheater and add alkali system, the flushing control unit being connected including industrial water tank, with industrial water tank and the note alkali control unit being arranged in parallel with rinsing control unit, rinse control unit one end by water main road with industrial water tank to be connected, the other end is connected with the flushing water inlet of air preheater to be cleaned；Rinse control unit include N bars be set up in parallel flushings water route, along water (flow) direction be successively set on flushing water route on flush water pump inlet valve, flush water pump and flush water pump outlet valve, wherein, the both ends in the flushing water route that N bars are set up in parallel are connected by N+1 port valves with the flushing water inlet of industrial water tank, scavenging air preheater respectively, N >=2 and N is integer.Compared with prior art, the utility model has the advantages that cleaning financial cost is low, easy to operate, stable, reduces the time of air preheater alkali cleaning, saves construction and the operation cost of power plant.
Description
Technical field
The utility model belongs to thermoelectric generator technical group field, is related to a kind of efficiently alkali cleaning thermal power generation unit air
Preheater cleaning plus alkali system.
Background technology
Air preheater (air pre-heater) refers to that the flue gas in boiler back end ductwork will by the fin of inside
Into the air preheat before boiler to the heating surface of certain temperature, for improving the heat exchange performance of boiler, energy expenditure is reduced.
At present, standard is not yet formed for the cleaning of thermal power generation unit air preheater plus alkali scheme, common air is pre-
Hot device cleaning method is steam blowing, implements artificial deashing to air preheater after compressor emergency shutdown, and clear water rinses, and passes through metering
Pump adds alkali to neutralize, and clear water rinses again, and air preheater resumes production after cleaning.In routinely cleaning, if clear water rinses
Between and alkali lye dosage deficiency, the sulfur dioxide (SO in ash content2) and sulfur trioxide (SO3) combined to form with water with deep-etching
The sulfuric acid of property, anticaustic is caused to air preheater heat exchanger component.And insufficient plus alkali neutralizes, and it is pre- to increase whole air
The scavenging period of hot device, cause alkali lye dosage and water consumption increase, being worked to Industrial Wastewater Treatment increases load, further leads
Cause to neutralize alkali lye amount increase used in waste water, cause whole air preheater alkali cleaning cost increase.It is how efficient, low for air preheater
Cost clean, and domestic there has been no the scheme for proposing to solve problems and measure.
Utility model content
The purpose of this utility model is exactly a kind of simple in construction in order to be provided the defects of overcoming above-mentioned prior art to exist,
Economic and practical is good, easy to operate, and stable efficient alkali cleaning thermal power generation unit is cleaned with air preheater plus alkali system.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of efficiently alkali cleaning thermal power generation unit clean plus alkali system with air preheater, the system including industrial water tank,
The flushing control unit being connected with industrial water tank and the note alkali control unit being arranged in parallel with rinsing control unit, it is described
Rinse control unit one end by water main road with industrial water tank to be connected, the flushing water of the other end and air preheater to be cleaned enters
Mouth is connected.
Described flushing control unit includes the flushing water route that N bars are set up in parallel, along water (flow) direction is successively set on flushing
Flush water pump inlet valve, flush water pump and flush water pump outlet valve on water route, wherein, the flushing water route that N bars are set up in parallel
Both ends be connected respectively by N+1 port valves with the flushing water inlet of industrial water tank, scavenging air preheater, N >=2 and N is integer.
Described note alkali control unit include it is a plurality of respectively with it is corresponding rinse water route connect one to one alkali injection tube road,
The note alkali valve that is arranged on alkali injection tube road, the injector being connected with note alkali valve, one end is connected with injector and the other end is provided with shifting
Dynamic flexible pipe, the storage alkali tank being connected with flexible pipe for taking out alkali valve.
Described flexible pipe is provided with the mobile one end leaching for taking out alkali valve and is located in the alkali lye of storage alkali tank.
Described flexible pipe is the wired flexible pipe of rubber.
Described note alkali valve is arranged between flush water pump inlet valve and flush water pump.
Described injector is provided with two ports of export, and one of port of export is connected with note alkali valve, and another port of export leads to
Flush power water valve is crossed with flush water pump outlet valve to be connected.
The material of described injector is polytetrafluoroethylene (PTFE) or stainless steel.
The material of described industrial water tank is stainless steel or concrete.
The utility model can carry out air in the case where no alkali lye adds the equipment such as measuring pump and alkali lye storage box
The cleaning of preheater, the alkali cleaning time of air preheater can be shortened, mitigate the load of wastewater treatment work.
Compared with prior art, the utility model is designed reasonably, with cleaning financial cost is low, easy to operate, structure is simple
The advantages that single, stable, the time of air preheater alkali cleaning is reduced, make alkali lye and ash content and water middle acid substance in air preheater
Fully neutralize, mitigate Industrial Wastewater Treatment live load, promote that power plant is stable, safe operation, at the same for power plant's production save into
This, has the characteristics that：
1) avoid because medicine system deficiency causes air preheater alkali cleaning overlong time, shorten the air preheater alkali cleaning time, be
Unit opens machine and the time has been striven in maintenance；
2) due to the shortening of scavenging period, when just reducing the contact with air preheater steel construction of air preheater middle acid substance
Between, alleviate the corrosion of air preheater steel member；
3) due to neutralizing speed, whole air preheater scavenging period is shorter, therefore is given up as caused by air preheater alkali cleaning
Water just reduces, and alleviates the burden of Industrial Wastewater Treatment, has saved chemicals dosage；
4) for new power plant construction, if implementing according to the measure, a set of medicine machine can be saved, and the price sheet of injector
Body is not high, therefore reduces capital construction, installation, the cost payout for debugging part, greatlys save early investment cost.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment 1；
Description of symbols in figure：
1- industrial water tanks, 2- flush water pump inlet valves, 3- note alkali valves, 4- flush water pumps, 5- injectors, 6- flushing waters pump out
Alkali valve, 10- storage alkali tanks are taken out in mouth valve, 7- flush power water valves, 8- flexible pipes, 9- movements.
Embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1：
As shown in figure 1, a kind of efficiently alkali cleaning thermal power generation unit air preheater adds alkali system, including industrial water tank 1,
Flush water pump inlet valve 2, note alkali valve 3, flush water pump 4, injector 5, flush water pump outlet valve 6, flush power water valve 7, rubber
Alkali valve 9 is taken out in wired flexible pipe 8 and movement, wherein, the right side lower end of industrial water tank 1 connection water main one end, water main right-hand member passes through three
Lead to and connect other two auxiliary water pipes, flush water pump inlet valve 2, flush water pump 4 and punching are from left to right sequentially installed with auxiliary water pipe
Wash water pump discharge valve 6, the position on two auxiliary water pipes between flush water pump inlet valve 2 and flush water pump 4 are all connected with another
Root water pipe, note alkali valve 3, injector 5 and flush power water valve 7, injector 5 are from left to right sequentially installed with the water pipe and connects soft
One end of pipe 8, and the other end of flexible pipe 8 is provided with movement and takes out alkali valve 9, flexible pipe 8 is provided with the mobile one end leaching for taking out alkali valve 9 and is located at
In the alkali lye for storing up alkali tank 10；The right-hand member of two water pipes respectively connects the right-hand member of an auxiliary water pipe, and the right-hand member of two auxiliary water pipes passes through
Triple valve connects, and is connected to the flushing water inlet of air preheater to be cleaned.
In the present embodiment, flexible pipe 8 is the wired flexible pipe of rubber, and the material of injector 5 is polytetrafluoroethylene (PTFE) material, industrial water tank
1 material is concreting, and pool volume is big, and water balance performance is good, heat-resisting, corrosion-resistant, resistance to acids and bases is good, service life
It is long.
The concrete operation method of the present embodiment system is as follows：(1) the artificial preliminary deashing of air preheater；(2) air preheat is opened
Device flushing water inlet valve；(3) start flush water pump 4, check whether outlet pressure is normal；(4) check that spray is set in air preheater
It is standby whether normal, if being normally carried out in next step, needing to stop flush water pump 4 if abnormal, carrying out sprinkling equipment in air preheater
Cleaning, until sprinkling equipment is without clogging；(5) flush power water valve 7 is opened；(6) open movement and take out alkali valve 9, venting flexible pipe 8
After interior air, in the alkali lye of insertion storage alkali tank 10；(7) note alkali valve 3 is opened；(8) check that alkali lye flowing is normal in flexible pipe 8, i.e.,
To add alkali work to start；(9) when the alkali lye in storage alkali tank 10 will add, close movement and takes out alkali valve 9, flexible pipe 8 is inserted separately
In the alkali lye of one storage alkali tank 10, open movement and take out alkali valve 9, continue plus alkali works；(10) after air preheater flushing work terminates,
Extract mobile alkali addition valve 9 out, close note alkali valve 3, (can totally be arranged the alkaline flushing retained in flexible pipe 8 by the water delivery of flush power water valve 7
To empty barrel) after, close and rinse Water driving valve 7；(11) flush water pump 4 is disabled；(12) arrange and add the wired flexible pipe 8 of alkali.Whole mistake
Cheng Zhong, operator should be with the protected workings such as good hand's set and mask.
Embodiment 2：
The efficient alkali cleaning thermal power generation unit of the present embodiment is cleaned plus alkali system with air preheater, including industrial water tank 1, with
Flushing control unit that industrial water tank 1 is connected and the note alkali control unit being arranged in parallel with rinsing control unit, rinse control
Unit one end processed is connected by water main road with industrial water tank 1, the flushing water inlet phase of the other end and air preheater to be cleaned
Even.
Wherein, rinsing control unit includes three flushing water routes being set up in parallel, is successively set on flushing along water (flow) direction
Flush water pump inlet valve 2, flush water pump 4 and flush water pump outlet valve 6 on water route, wherein, three flushings being set up in parallel
The both ends in water route are connected by four-way valve with the flushing water inlet of industrial water tank, scavenging air preheater respectively.
Note alkali control unit includes three alkali injection tube roads to be connected one to one respectively with corresponding flushing water route, is arranged on
Note alkali valve 3 on alkali injection tube road, the injector 5 being connected with note alkali valve 3, one end are connected with injector 5 and the other end is provided with moving
Take out flexible pipe 8, the storage alkali tank 10 being connected with flexible pipe 8 of alkali valve 9.Flexible pipe 8 is provided with the mobile one end leaching for taking out alkali valve 9 and is located at storage alkali tank 10
Alkali lye in.Flexible pipe 8 is the wired flexible pipe of rubber.Note alkali valve 3 is arranged between flush water pump inlet valve 2 and flush water pump 4.Injection
Device 5 is provided with two ports of export, and one of port of export is connected with note alkali valve 3, another port of export by flush power water valve 7 and
Flush water pump outlet valve 6 is connected.
In the present embodiment, the material of injector 5 is stainless steel, and the material of industrial water tank 1 is concreting.
Embodiment 3：
The efficient alkali cleaning thermal power generation unit of the present embodiment is cleaned plus alkali system with air preheater, including industrial water tank 1, with
Flushing control unit that industrial water tank 1 is connected and the note alkali control unit being arranged in parallel with rinsing control unit, rinse control
Unit one end processed is connected by water main road with industrial water tank 1, the flushing water inlet phase of the other end and air preheater to be cleaned
Even.
Wherein, rinsing control unit includes five flushing water routes being set up in parallel, is successively set on flushing along water (flow) direction
Flush water pump inlet valve 2, flush water pump 4 and flush water pump outlet valve 6 on water route, wherein, five flushings being set up in parallel
The both ends in water route are connected by six-way valve with the flushing water inlet of industrial water tank, scavenging air preheater respectively.
Note alkali control unit includes five alkali injection tube roads to be connected one to one respectively with corresponding flushing water route, is arranged on
Note alkali valve 3 on alkali injection tube road, the injector 5 being connected with note alkali valve 3, one end are connected with injector 5 and the other end is provided with moving
Take out flexible pipe 8, the storage alkali tank 10 being connected with flexible pipe 8 of alkali valve 9.Flexible pipe 8 is provided with the mobile one end leaching for taking out alkali valve 9 and is located at storage alkali tank 10
Alkali lye in.Flexible pipe 8 is the wired flexible pipe of rubber.Note alkali valve 3 is arranged between flush water pump inlet valve 2 and flush water pump 4.Injection
Device 5 is provided with two ports of export, and one of port of export is connected with note alkali valve 3, another port of export by flush power water valve 7 and
Flush water pump outlet valve 6 is connected.
In the present embodiment, the material of injector 5 is stainless steel, and the material of industrial water tank 1 is stainless steel.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using practicality
It is new.Person skilled in the art obviously can easily make various modifications to these embodiments, and illustrating herein
General Principle be applied in other embodiment without by performing creative labour.Therefore, the utility model is not limited to above-mentioned
Embodiment, those skilled in the art according to announcement of the present utility model, do not depart from improvement that the utility model category made and
Modification all should be within the scope of protection of the utility model.
Claims (9)
1. a kind of efficiently alkali cleaning thermal power generation unit is cleaned with air preheater plus alkali system, it is characterised in that the system includes
Industrial water tank (1), the flushing control unit being connected with industrial water tank (1) and the note alkali being arranged in parallel with rinsing control unit
Control unit, described flushing control unit one end are connected by water main road with industrial water tank (1), the other end and sky to be cleaned
The flushing water inlet of air preheater is connected.
2. a kind of efficiently alkali cleaning thermal power generation unit according to claim 1 is cleaned with air preheater plus alkali system, its
It is characterised by, described flushing control unit includes the flushing water route that N bars are set up in parallel, along water (flow) direction is successively set on flushing
Flush water pump inlet valve (2), flush water pump (4) and flush water pump outlet valve (6) on water route, wherein, N bars are set up in parallel
Rinse water route both ends be connected respectively by N+1 port valves with the flushing water inlet of industrial water tank, scavenging air preheater, N >=2 and
N is integer.
3. a kind of efficiently alkali cleaning thermal power generation unit according to claim 2 is cleaned with air preheater plus alkali system, its
It is characterised by, described note alkali control unit includes a plurality of alkali injection tube to be connected one to one respectively with corresponding flushing water route
Road, the note alkali valve (3) being arranged on alkali injection tube road, the injector (5) being connected with note alkali valve (3), one end are connected with injector (5)
And the other end is provided with mobile flexible pipe (8), the storage alkali tank (10) being connected with flexible pipe (8) for taking out alkali valve (9).
4. a kind of efficiently alkali cleaning thermal power generation unit according to claim 3 is cleaned with air preheater plus alkali system, its
It is characterised by, described flexible pipe (8) is provided with the mobile one end leaching for taking out alkali valve (9) and is located in the alkali lye of storage alkali tank (10).
5. a kind of efficiently alkali cleaning thermal power generation unit according to claim 4 is cleaned with air preheater plus alkali system, its
It is characterised by, described flexible pipe (8) is the wired flexible pipe of rubber.
6. a kind of efficiently alkali cleaning thermal power generation unit according to claim 3 is cleaned with air preheater plus alkali system, its
It is characterised by, described note alkali valve (3) is arranged between flush water pump inlet valve (2) and flush water pump (4).
7. a kind of efficiently alkali cleaning thermal power generation unit according to claim 6 is cleaned with air preheater plus alkali system, its
It is characterised by, described injector (5) is provided with two ports of export, and one of port of export is connected with note alkali valve (3), and another goes out
Mouth end is connected by flush power water valve (7) with flush water pump outlet valve (6).
8. a kind of efficiently alkali cleaning thermal power generation unit according to claim 7 is cleaned with air preheater plus alkali system, its
It is characterised by, the material of described injector (5) is polytetrafluoroethylene (PTFE) or stainless steel.
Add 9. a kind of efficiently alkali cleaning thermal power generation unit according to any one of claim 1 to 8 is cleaned with air preheater
Alkali system, it is characterised in that the material of described industrial water tank (1) is stainless steel or concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720699330.3U CN207066233U (en) | 2017-06-15 | 2017-06-15 | A kind of efficiently alkali cleaning thermal power generation unit is cleaned with air preheater plus alkali system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720699330.3U CN207066233U (en) | 2017-06-15 | 2017-06-15 | A kind of efficiently alkali cleaning thermal power generation unit is cleaned with air preheater plus alkali system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207066233U true CN207066233U (en) | 2018-03-02 |
Family
ID=61508752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720699330.3U Expired - Fee Related CN207066233U (en) | 2017-06-15 | 2017-06-15 | A kind of efficiently alkali cleaning thermal power generation unit is cleaned with air preheater plus alkali system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207066233U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109675849A (en) * | 2018-11-27 | 2019-04-26 | 大唐湘潭发电有限责任公司 | A kind of black dirt of power plant's low-temperature flue gas processing system adds buck rinse-system |
| CN117109359A (en) * | 2023-10-20 | 2023-11-24 | 北京魏桥国科新能源技术研究院有限公司 | Cleaning system, cleaning method and cleaning device for heat exchanger and setting machine |
-
2017
- 2017-06-15 CN CN201720699330.3U patent/CN207066233U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109675849A (en) * | 2018-11-27 | 2019-04-26 | 大唐湘潭发电有限责任公司 | A kind of black dirt of power plant's low-temperature flue gas processing system adds buck rinse-system |
| CN117109359A (en) * | 2023-10-20 | 2023-11-24 | 北京魏桥国科新能源技术研究院有限公司 | Cleaning system, cleaning method and cleaning device for heat exchanger and setting machine |
| CN117109359B (en) * | 2023-10-20 | 2023-12-22 | 北京魏桥国科新能源技术研究院有限公司 | Cleaning system, cleaning method and cleaning device for heat exchanger and setting machine |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180302 |
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| CF01 | Termination of patent right due to non-payment of annual fee |