CN206347558U - Novel waste heat boiler system applied to waste incineration and generating electricity - Google Patents
Novel waste heat boiler system applied to waste incineration and generating electricity Download PDFInfo
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- CN206347558U CN206347558U CN201621444018.1U CN201621444018U CN206347558U CN 206347558 U CN206347558 U CN 206347558U CN 201621444018 U CN201621444018 U CN 201621444018U CN 206347558 U CN206347558 U CN 206347558U
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Abstract
The utility model discloses a kind of Novel waste heat boiler system applied to waste incineration and generating electricity, main feed system supplies water to economizer, the economizer conveys the water after heating to drum, the drum exports after gas-vapor mix is heated to evaporator and is recycled to drum through pipeline, the drum is delivered to main steam line after exporting steam to superheater heating, the main steam line exports steam to steam turbine power generation, the steam turbine is provided with the condenser of recovered steam, the utility model has the advantage of by boiler water-steam system, the improvement of vapour system structure, waste heat boiler can be made to adapt to bulky refuse burning electricity generation demand, reach the effect of energy-saving, environment-friendly and high-efficiency, and improve the stability and reliability of waste incineration and generating electricity system.
Description
Technical field
The utility model is related to waste incineration and generating electricity field, more particularly to waste incineration and generating electricity system UTILIZATION OF VESIDUAL HEAT IN system
System.
Background technology
Waste heat boiler is a traditional energy-saving equipment, in extensive range, and in field of waste incineration, due to waste incineration
, there is problems with the particularity of produced flue gas：1st, there is fluctuation in flue-gas temperature, steam production be influenceed, so as to influence
Steam turbine works；2nd, boiler feed system is difficult to meet large-scale burning electricity generation water requirements；If the 3, any part is damaged,
Generating production may be had influence on；4th, the flue gas of waste incineration can produce bioxin gas, and harm to the human body is very big, and waste heat pot
The superheater of stove to the temperature of evaporator section can drastically decline, and easily produce bioxin；5th, the dust of combustion product gases is easily adsorbed
On the tube wall of heat exchange pipeline, dust has corrosivity, can influence the service life of pipeline.
Utility model content
Technical problem to be solved in the utility model be realize it is a kind of can be applied to waste incineration and generating electricity waste heat pot
Furnace system.
To achieve these goals, the technical solution adopted in the utility model is：Applied to the new of waste incineration and generating electricity
Afterheat boiler system, main feed system supplies water to economizer, and the water after the economizer conveying heating is to drum, and the drum is defeated
Go out after being recycled to drum, the drum output steam to superheater heating through pipeline after gas-vapor mix to evaporator heating and convey
To main steam line, the main steam line exports steam to steam turbine power generation, and the steam turbine is provided with the condensing of recovered steam
Device, main water supply valve, feed pump and main throttle plate aperture are sequentially provided with along the main water supply pipe water (flow) direction of the main feed system,
The water that water-jet pump extracts jetting case is recycled to jetting case through the condensation pipe in the condenser, and the jetting case is provided with water filling
Pipe, the jetting upper box part be provided with overfall, the overfall by the downward diversion of overflow pipe to spill box, the overheat
The pipe level of device, evaporator and economizer is arranged in the flue being vertically arranged, the superheater by be sequentially connected in series first
Superheater, the second superheater and the 3rd superheater are constituted, and the flue collector above combustion chamber is connected with the first flue top, and described the
With being connected below the second flue below one flue, and in connection position bottom provided with mechanism of gathering dust, first stack base is set
There is protection evaporator, the superheater and evaporator are placed in the second flue, and the economizer is placed in the 3rd flue；The master
Bypass has auxiliary water supply line on main water supply pipe before water supply valve, and the auxiliary water supply line is through auxiliary restricting orifice, triple valve
Door supplies water to oxygen-eliminating device, and the one of path of three-way valve supplies water through auxiliary water pump to waste heat boiler；The spill box leads to
Flood pump pump water is crossed to cooling tower, the cooling tower delivery port conveys cooling water to jetting case.
The side of the protection evaporator is provided with the sootblower nozzle to its heating surface air blast, and the soot blower passes through provided with electricity
The branch pipe of the main pipeline connection steam source of the gas of magnet valve, the main pipeline and connection main pipeline is provided with nozzle, the main pipeline
Provided with electronic barometer, the electronic barometer output pressure signal is to PLC, and the PLC outputs control signals to magnetic valve.
The nozzle is horizontal flat nozzle, and the nozzle inclination sends out high pressure to protection evaporator heating surface downwards
Steam.
The influent header of first superheater connects the saturated vapor output channel of drum, and first superheater goes out
Mouth header connects the influent header of the second superheater through the first attemperator, and the outlet header of second superheater is through the second desuperheat
Device connects the influent header of the 3rd superheater, the outlet header connection main steam line of the 3rd superheater, second cigarette
Road is sequentially provided with the first superheater, the second superheater and the 3rd superheater from top to bottom.
The main water supply system exports heated demineralized water to the first attemperator and the second attemperator, first desuperheat
Electronic flow valve is equipped with the water supply line of device and the second attemperator, second superheater is externally provided with the first TEMP
Device, the 3rd superheater is externally provided with second temperature sensor, first temperature sensor, second temperature sensor output temperature
Signal is spent to PLC, and the PLC outputs opening amount signal is adjusted to two electronic flow valves.
3rd superheater is provided with protection baffle plate, and the protection baffle plate is by being welded on the 3rd every heat exchanger tube of superheater
Flue gas, which to cover to the C-shaped pipes of side, to be constituted, and the C-shaped pipes set is flexible steel bar, and the C-shaped pipes set outer surface is evenly distributed with recessed
Fall between shape structure, the C-shaped pipes set provided with vibrations connection strap, the C shapes pipe sleeve edge, which is provided with, to be used to beat protection baffle plate
Rapping apparatus.
The oxygen-eliminating device extracts demineralized water by supply-water pump, and the auxiliary water pump output end is distinguished through having valvular two pipelines
Connect and be equipped with check valve, the storage on the input and output side of main throttle orifice plate, the main water supply pipe and auxiliary water supply line
Heating arrangements are provided with water cavity.
The water-jet pump is main water-jet pump and auxiliary water-jet pump respectively provided with two, and the main water-jet pump and auxiliary water-jet pump are mutual
Check valve and water check valve are equipped with two pipelines of parallel connection, the main water-jet pump in parallel and auxiliary water-jet pump.
The jetting case is by two storage zones of baffle interval being vertically arranged, and the upper, middle and lower position of the dividing plate is respectively set
There is an intercommunicating pore, the cooling tower conveys cooling water to delivery port place low temperature storage zones, and it is cold that the water-jet pump is exported
But water is to another high temperature storage zones, and the water injection pipe is placed in above low temperature storage zones.
It is provided with the jetting case in level sensor, the low temperature storage zones and is provided with temperature sensor, the temperature
Sensing and level sensor output signal to PLC, and high temperature storage zones bottom is provided with pump mouth, and the pump mouth is through drawing water
Pump connects cooling tower, the electronic valve that the PLC is output control signals on suction pump and water injection pipe.
The utility model has the advantage of by the improvement to boiler water-steam system, vapour system structure, waste heat can be made
Boiler adapts to bulky refuse burning electricity generation demand, reaches the effect of energy-saving, environment-friendly and high-efficiency, and improve waste incineration and generating electricity system
Stability and reliability.
Brief description of the drawings
The mark in the content and figure of every width accompanying drawing expression in the utility model specification is briefly described below：
Fig. 1 is afterheat utilizing system structural representation；
Fig. 2 is afterheat utilizing system pipeline connecting figure；
Fig. 3 is waste heat boiler main feed system structural representation；
Fig. 4 is jetting case circulating system structure schematic diagram；
Mark in above-mentioned figure is：1st, economizer；2nd, drum；3rd, evaporator；4th, the first superheater；5th, the second overheat
Device；6th, the 3rd superheater；7th, evaporator is protected；8th, soot blower.9th, oxygen-eliminating device；10th, water storage cavity；11st, auxiliary restricting orifice；12nd, it is main
Restricting orifice；13rd, auxiliary water pump；14th, feed pump.15th, jetting case；16th, spill box；17th, main water-jet pump；18th, auxiliary water-jet pump；
19th, industrial water；20th, flood pump；21st, cooling tower.
Embodiment
As shown in figure 1, in the exhaust gases passes of afterheat utilizing system, along flow of flue gas direction be sequentially provided with protection evaporator 7,
Superheater, evaporator 3 and economizer 1, because the system is applied to refuse incineration exhaust-heating boiler, it is internal produce amount of dust compared with
Greatly, it is therefore desirable to the arrangement protection evaporator 7 before superheater.
For the flue collector above the combustion chamber of combustion refuse with being connected above the first flue, with second below the first flue
Connected below flue, and in connection position bottom provided with mechanism of gathering dust, the second flue top is connected with the 3rd flue, such perpendicular
Entrained fume amount in straight flue layout type, it is possible to increase flue dust effect of settling, reduction flue gas, and first can be passed through
The dust arrester installation connected below flue with the second flue below position is collected processing.
Protection evaporator 7 is arranged in before the import of convection pass (the first flue), finishing superheater, and it has two main work(
Energy：One is that superheater bank can be protected to avoid abrasion, and two be that the protection heating surface of evaporator 7 can make flue-gas temperature enter superheater
Before be reduced to less than 650 DEG C, this cigarette temperature is for preventing the corrosion of superheater tube most important.Even if what flue gas was carried dissolves soot particle
Fall on the protection pipe of evaporator 7, but because the protection tube wall temperature of evaporator 7 is significantly less than superheater tube wall temperature, soot particle becomes
Solid, dust stratification is just can remove by steam soot cleaning system, and the danger of high temperature corrosion is greatly reduced.
To improve the dedusting effect of protection evaporator 7, the side of protection evaporator 7 is provided with the soot blower to its heating surface air blast
8 nozzles, soot blower 8 removes the dust stratification on heating surface using steam soot-blower, and a whole set of soot blower uses programme-control, periodically
Ash disposal, usual 1~2 times/day.
Soot blower 8 connects steam source of the gas by the main pipeline provided with magnetic valve, and nozzle is separately mounted to supervisor provided with multiple
On the branch pipe of road and connection main pipeline, nozzle is horizontal flat nozzle, and nozzle inclination is downwards to the protection heating surface of evaporator 7
High steam is sent out, such structure can improve the area and effect of each nozzle soot blowing, so as to reduce the arrangement number of nozzle
Amount, can set one group of nozzle on the pipeline of the superiors' heating surface and every three-layer protection evaporator 7, and every group of nozzle sets eight
It is individual, the surrounding of protection evaporator 7 is uniformly arranged on respectively.
The main pipeline of soot blower 8 is provided with electronic barometer, electronic barometer output pressure signal to PLC, PLC outputs
Control signal obtains pipeline pressure to magnetic valve by PLC, so that electromagnetic valve for adjusting aperture controls soot blowing air pressure, it is ensured that soot blowing
Effect.For further accurate control soot blower occasion, it can protect the pipeline both sides of evaporator 7 that laser acquisition is set in the superiors
Device, after level is fixed, laser is crossed above the superiors' heating surface of protection radiator during work, side transmitting laser signal, separately
Side receives laser signal, represents that dust is blocked up when laser signal is blocked, then can control to send the signal of soot blowing request.
The exhaust gases passes of waste heat boiler are vertically arranged, and the pipe level of protection evaporator 7 is set, and protects the knot of evaporator 7
The structure of evaporator 3 of the structure with being commonly used for waste heat boiler is identical, and it supplies water as the demineralized water after heating.
Superheater is made up of the first superheater 4, the second superheater 5 and the 3rd superheater 6, by setting three groups of superheaters,
Vapor (steam) temperature can be controlled and prevent that flue-gas temperature reduction is too fast, in case bioxin is generated.
As shown in figure 1, the second flue is sequentially provided with the first superheater 4, the second superheater 5 and the 3rd superheater from top to bottom
6, evaporator 3 is placed in the top of the first superheater 4 of the second flue, and economizer 1 is placed in the 3rd flue, passes through three groups of flues and bottom
Portion's mode of communicating, can effectively reduce flue dust, it is to avoid adhere to foreign matter on pipeline, be favorably improved the service life and Re Jiao of pipeline
Change effect, and such layout structure can more adapt to waste incineration produced by flue gas heat exchange supply, can be more
Reliable and stable provides stable steam for steam turbine.
The influent header of first superheater 4 connects the saturated vapor output channel of drum 2, the outlet connection of the first superheater 4
Case connects the influent header of the second superheater 5 through the first attemperator, and the outlet header of the second superheater 5 is connected through the second attemperator
The influent header of 3rd superheater 6, the outlet header connection main steam line of the 3rd superheater 6.Outlet header and influent header
Between be superheater pipeline.
Flue collector above combustion chamber above the first flue with connecting, with being connected below the second flue below the first flue,
And dust content can be so reduced, the second flue is sequentially provided with from top to bottom provided with mechanism of gathering dust in connection position bottom
First superheater 4, the second superheater 5 and the 3rd superheater 6.
In order to be accurately controlled vapor (steam) temperature and flue-gas temperature, the water supply of three layer of first attemperator and the second attemperator
Electronic flow valve is equipped with pipeline, the second superheater 5 is provided with the first temperature sensor, and the 3rd superheater 6 is externally provided with the second temperature
Sensor is spent, first temperature sensor, second temperature sensor output temperature signal to PLC pass through flue gas for detecting
Temperature, PLC is according to ambient temperature state, and output opening amount signal is adjusted to two electronic flow valves, i.e. flue-gas temperature gets over Gao Ze
Electronic flow valve opening is bigger, so as to rational control vapor (steam) temperature and fine setting flue-gas temperature.
The water supply of attemperator uses demineralized water, and demineralized water is delivered to oxygen-eliminating device through water pump, and the water of oxygen-eliminating device output is heated
Pressurized delivered is to the first attemperator and the second attemperator after device heating, and heating-up temperature is typically at 140 degree or so.
The service life of superheater is further improved for mating protection baffle plate, and superheater can be coordinated to control flue-gas temperature,
First stack base is equally horizontally disposed with provided with protection evaporator 7, protection evaporator 7 pipeline, and protection evaporator 7, which is equally improved, to be removed
Salt solution, demineralized water is delivered to oxygen-eliminating device through water pump, and pressurized delivered is to protecting steaming after the heated device heating of water of oxygen-eliminating device output
Send out device 7.The water filling port of evaporator 7 is protected to be provided with below Temperature control valve (using electronic flow valve), the first flue and under the second flue
Fang Liantong positions are provided with flue-gas temperature sensor, and flue-gas temperature sensor exports flue-gas temperature signal to PLC, PLC output apertures
Regulate signal is to temp.-control valve, so as to start the effect of reduction velocity of flue gas, temperature and dustiness.By protecting evaporator 7,
Flue dust can be stopped, dust-laying effect, and the temperature that flue gas dramatic decrease can be made to be used to a suitable superheater is improved, this
Temperature fluctuation range does not interfere with the generation of bioxin.
For further protection superheater and control flue-gas temperature, baffle plate is protected in the lower section of the 3rd superheater 6 provided with protection baffle plate
Constituted by being welded on the every heat exchanger tube of the 3rd superheater 6 flue gas to the C-shaped pipes set of side, C shapes pipe sleeve passes through its cavity bag
Wrap the side of heat exchanger tube (flue gas comes to side).C-shaped pipes set can protect heat exchanger tube, can also be lowered into the ash of the second flue
Dust quantity, due to velocity of flue gas reduction, helps to control flue-gas temperature by superheater.
Further to improve the protection effect of protective plate, protective plate is provided with two, and respectively the first protective plate and second prevent
Backplate.
It is horizontally fixed with first flue in the first protective plate, the second flue and is horizontally fixed with the second protective plate.First prevents
Backplate is at the bottom end outlet of the first flue, and the first protective plate is made up of the C-shaped pipes set being arranged side by side, and C-shaped pipes set is fixed side by side
In framework, there is the gap passed through for flue gas between C-shaped pipes set, C-shaped pipes set comes to the first protective plate allows convex surface facing flue gas
Flue gas rapidly slows down in bottom, and the first protective plate can also adsorb dust in itself, allows it substantial amounts of can fall into dust arrester installation, reduces
Amount of dust in second flue.
The second protective plate is horizontally fixed with second flue, the 3rd superheater 6 is fixed on the bottom (flue gas of the second flue
Porch), the second protective plate is made up of the C-shaped pipes set being welded on the heat exchanger tube of the 3rd superheater 6, and C-shaped pipes set is located at heat exchange
The bottom of pipe, i.e. flue gas are to direction, for protecting heat exchanger tube, also can further reduce the dust in barrier flue gas, reach
Double protection effect.
Because protective plate is made up of the C-shaped pipes set being set up in parallel, the hole passed through for flue gas is provided between C-shaped pipes set, this
The structure of sample helps to slow down to flue gas, can also protect heat exchanger tube.Each C-shaped pipes set is uniformly distributed towards flue gas to direction
There is recess structure (in numb spot distribution), i.e., the outer surface covered in C-shaped pipes is provided with recess structure, and C-shaped pipes set is preferred to use
Flexible steel bar makes, by sunk structure, can increase the effect of C-shaped pipes set absorption dust and improve C-shaped pipes set reduction flue gas
The effect of flow velocity, and the flexible characteristic for coordinating C-shaped pipes to cover, each C-shaped pipes are enclosed in the presence of flue gas blows, C-shaped pipes set meeting
Occur, from shaking, automatically to shake off the dust cake adsorbed on C-shaped pipes set into the dust arrester installation of lower section, with one
Fixed self purification, is provided with the rapping apparatus for being used for beaing protective plate edge by the first protective plate and the second protective plate in addition, the
Vibrations transmission bar can be welded between the C-shaped pipes set of two protective plates, is capable of the dust structure put to C-shaped pipes the cleaning of active.
Main feed system scope be by the water supplying tank import of the delivery port of oxygen-eliminating device 9 to waste heat boiler incinerator economizer,
Waste heat boiler main feed system sets two feed pumps altogether, the using and the reserved, using VFC, and every feed pump is exerted oneself about
The 110% of separate unit boiler capacity, feedwater pump discharge is provided with recirculation pipe to middle pressure oxygen-eliminating device 9, and boiler feedwater pump operation has most
Low discharge requirement, when boiler replenishing water reduction or load reduction, to ensure that boiler feed pump is normally run, sets boiler feed pump
Minimum discharge interlock.
Specifically as shown in figure 3, the water storage cavity 10 of oxygen-eliminating device 9 is exported connects waste heat boiler through main water supply pipe, supplied water along main
Pipeline water flow direction is sequentially provided with main water supply valve, feed pump 14 and main throttle plate aperture, and auxiliary water supply line is connected to main feed water valve
On main water supply pipe before door, auxiliary water supply line supplies water through auxiliary restricting orifice 11, three-way valve to oxygen-eliminating device 9, three-way valve
One of path supplies water through auxiliary water pump 13 to waste heat boiler, is preferably supplied simultaneously to the input and output side of main throttle orifice plate 12
Water, and it is equipped with check valve on main water supply pipe and auxiliary water supply line.
Pipeline is impacted in order to avoid flow is too big, the auxiliary output end of water pump 13 is connected respectively through having valvular two pipelines
The input and output side of main throttle orifice plate 12.Valve coordinates auxiliary restricting orifice 11 to ensure boiler feed pump safe and reliable operation.
Supplied water in order to Automated condtrol, the water feed inlet of waste heat boiler is provided with flowmeter, measure flow less than boiler
During Minimum Flowrate of Feed Pump, flowmeter output signal to DCS carries out chain feedback, auxiliary water pump 13 and valve are opened in control, and are led to
The value of feedback of excessively stream gauge constitutes closed loop.Oxygen-eliminating device 9 is extracted by supply-water pump and heater is provided with demineralized water, water storage cavity 10
Structure, heating arrangements are steam heater.
As shown in figure 4, the delivery port of the bottom of jetting case 15 of the jetting case circulatory system connects water-jet pump, water-jet pump through pipeline
The cooling water of output is recycled to jetting case 15 through condenser, constitutes a cooling water circulation loop, and water-jet pump is provided with two points
Not Wei main water-jet pump 3 and auxiliary water-jet pump 18, one jetting pump group can be to keep the vacuum of main condenser during normal operation.In short-term
Between when shutting down without blowing out operating mode, two jetting pump groups are all run, to keep the vacuum of master/bypass condenser simultaneously.
To control main water-jet pump 3 and auxiliary water-jet pump 18 to work, main water-jet pump 3 and auxiliary water-jet pump 18 are parallel with one another, and parallel connection is main
Check valve and water check valve are equipped with two pipelines of water-jet pump 3 and auxiliary water-jet pump 18.When halt turbines, main steam passes through
When bypassing temperature-decreased pressure reducer into bypass condenser, steam turbine pumped vacuum systems makes bypass condenser internal pressure power be maintained at about
0.068MPa。
Jetting case 15 is provided with water injection pipe, the industrial grid (providing industrial water 19) of water injection pipe connection on-site.Jetting
The top of case 15 is provided with overfall, and overfall is by the downward diversion of overflow pipe to spill box 16, water-jet pump normal operating condition,
Water in jetting case 15 can be overflowed, if directly outer row can cause water resource waste, therefore the overflow of design increase jetting case 15
Retracting device.
The water that the overfall of jetting case 15 is overflowed is incorporated into spill box 16 by pipeline, sets water level to become in water tank
Device is sent, when the water level in water tank reaches high water-level alarm value, the flood pump 20 chain with water level is automatically turned on, and water is transmitted back to
Recycled to cooling tower 21, i.e., spill box 16 passes through the pump water of flood pump 20 to cooling tower 21, the conveying of the delivery port of cooling tower 21
Cooling water can utilize the Water Sproading after cooling to jetting case 15.
In order to further control the moisture storage capacity in jetting case 15, and control cooling water temperature, condenser effect is improved, is penetrated
Water tank 15 is respectively provided with an intercommunicating pore by two storage zones of baffle interval for being vertically arranged, the upper, middle and lower position of dividing plate, both
Water level can be kept identical, can also reduce the flowing velocity of high temperature and low-temperature space water, cooling tower 21 conveys cooling water to delivery port institute
In low temperature storage zones, water injection pipe is also placed in above low temperature storage zones, reduces the coolant-temperature gage of cooling, it is cold that water-jet pump is exported
But water makes by there are two different water storage humidity provinces in jetting case 15 to another high temperature storage zones.
Passed to realize to be provided with Automated condtrol, jetting case 15 in level sensor, low temperature storage zones provided with temperature
Sensor, TEMP and level sensor output signal to PLC, and high temperature storage zones bottom is provided with pump mouth, and pump mouth is through taking out
Water pump connects cooling tower 21, and the electronic valve that PLC is output control signals on suction pump and water injection pipe so can be excessive in water level
When, also can be when temperature be too high by opening electronic valve moisturizing, cooling of actively drawing water, and supplement the relatively low industrial water of temperature
19。
The utility model is exemplarily described above in conjunction with accompanying drawing, it is clear that the utility model implement not by
The limitation of aforesaid way, as long as employing changing for the various unsubstantialities that method design of the present utility model and technical scheme are carried out
Enter, or it is not improved by it is of the present utility model design and technical scheme directly apply to other occasions, in the utility model
Protection domain within.
Claims (10)
1. applied to the Novel waste heat boiler system of waste incineration and generating electricity, main feed system supplies water to economizer, the economizer
Water after conveying heating is to drum, and the drum exports after gas-vapor mix is heated to evaporator and is recycled to drum through pipeline, institute
State and main steam line is delivered to after drum output steam to superheater heating, the main steam line exports steam to steam turbine and sent out
Electricity, the steam turbine is provided with the condenser of recovered steam, is set successively along the main water supply pipe water (flow) direction of the main feed system
There are main water supply valve, feed pump and main throttle plate aperture, water-jet pump extracts the water of jetting case through the condensation pipe in the condenser
Jetting case is recycled to, the jetting case is provided with water injection pipe, and the jetting upper box part is provided with overfall, and the overfall passes through overflow
The downward diversion of pipeline is to spill box, it is characterised in that：The pipe level of the superheater, evaporator and economizer is arranged on perpendicular
In the flue directly set, the superheater is made up of the first superheater, the second superheater and the 3rd superheater being sequentially connected in series, combustion
The flue collector above room is burnt with being connected above the first flue, with being connected below the second flue below first flue, and even
Logical position bottom is provided with mechanism of gathering dust, and first stack base is provided with protection evaporator, and the superheater and evaporator are placed in
In second flue, the economizer is placed in the 3rd flue；Bypass has auxiliary on main water supply pipe before the main water supply valve
Water supply line, the auxiliary water supply line supplies water through auxiliary restricting orifice, three-way valve to oxygen-eliminating device, the three-way valve one of them
Path supplies water through auxiliary water pump to waste heat boiler；The spill box by flood pump pump water to cooling tower, the cooling tower water outlet
Mouth conveys cooling water to jetting case.
2. the Novel waste heat boiler system according to claim 1 applied to waste incineration and generating electricity, it is characterised in that：It is described
Protect the side of evaporator provided with the sootblower nozzle to its heating surface air blast, the soot blower passes through the main pipeline provided with magnetic valve
Steam source of the gas is connected, the main pipeline is provided with nozzle with the branch pipe for connecting main pipeline, and the main pipeline is provided with electronics air pressure
Meter, the electronic barometer output pressure signal is to PLC, and the PLC outputs control signals to magnetic valve.
3. the Novel waste heat boiler system according to claim 2 applied to waste incineration and generating electricity, it is characterised in that：It is described
Nozzle is horizontal flat nozzle, and the nozzle inclination sends out high steam to protection evaporator heating surface downwards.
4. the Novel waste heat boiler system according to claim 3 applied to waste incineration and generating electricity, it is characterised in that：It is described
The influent header of first superheater connects the saturated vapor output channel of drum, and the outlet header of first superheater is through first
Attemperator connects the influent header of the second superheater, and the outlet header of second superheater connects the 3rd mistake through the second attemperator
The influent header of hot device, the 3rd superheater outlet header connection main steam line, second flue from top to bottom according to
It is secondary to be provided with the first superheater, the second superheater and the 3rd superheater.
5. the Novel waste heat boiler system according to claim 4 applied to waste incineration and generating electricity, it is characterised in that：It is described
Main water supply system exports heated demineralized water to the first attemperator and the second attemperator, first attemperator and the second desuperheat
Electronic flow valve is equipped with the water supply line of device, second superheater is externally provided with the first temperature sensor, the 3rd mistake
Hot device is externally provided with second temperature sensor, first temperature sensor, second temperature sensor output temperature signal to PLC,
The PLC outputs opening amount signal is adjusted to two electronic flow valves.
6. the Novel waste heat boiler system according to claim 5 applied to waste incineration and generating electricity, it is characterised in that：It is described
3rd superheater is provided with protection baffle plate, and the protection baffle plate is by being welded on the 3rd every heat exchanger tube of superheater flue gas come to side
C-shaped pipes set constitute, C-shaped pipes set is flexible steel bar, and the C-shaped pipes set outer surface is evenly distributed with recess structure, institute
State between C-shaped pipes cover and be provided with the rapping apparatus for beaing protection baffle plate provided with vibrations connection strap, the C-shaped pipes set edge.
7. the Novel waste heat boiler system of waste incineration and generating electricity is applied to according to claim 1 or 5, it is characterised in that：
The oxygen-eliminating device extracts demineralized water by supply-water pump, and the auxiliary water pump output end connects main section respectively through having valvular two pipelines
It is equipped with check valve, the water storage cavity and sets on the input and output side of discharge orifice plate, the main water supply pipe and auxiliary water supply line
There are heating arrangements.
8. the Novel waste heat boiler system according to claim 1 applied to waste incineration and generating electricity, it is characterised in that：It is described
Water-jet pump is main water-jet pump and auxiliary water-jet pump respectively provided with two, and the main water-jet pump and auxiliary water-jet pump are parallel with one another, institute in parallel
Check valve and water check valve are equipped with two pipelines for stating main water-jet pump and auxiliary water-jet pump.
9. the Novel waste heat boiler system according to claim 8 applied to waste incineration and generating electricity, it is characterised in that：It is described
Jetting case is by two storage zones of baffle interval being vertically arranged, and the upper, middle and lower position of the dividing plate is respectively provided with a connection
Hole, low temperature storage zones where the cooling tower conveys cooling water to delivery port, the cooling water of the water-jet pump output is to another
Individual high temperature storage zones, the water injection pipe is placed in above low temperature storage zones.
10. the Novel waste heat boiler system according to claim 9 applied to waste incineration and generating electricity, it is characterised in that：Institute
State to be provided with level sensor, the low temperature storage zones in jetting case and be provided with temperature sensor, the TEMP and water level
Sensor outputs signal to PLC, and high temperature storage zones bottom is provided with pump mouth, and the pump mouth is connected through suction pump and cooled down
Tower, the electronic valve that the PLC is output control signals on suction pump and water injection pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN106678772A (en) * | 2016-12-27 | 2017-05-17 | 安徽海螺川崎工程有限公司 | Waste heat boiler system for electricity generation through waste incineration |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106678772A (en) * | 2016-12-27 | 2017-05-17 | 安徽海螺川崎工程有限公司 | Waste heat boiler system for electricity generation through waste incineration |
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