CN208703577U - The flushing pipeline of pyrolysis oven in a kind of denitrating system - Google Patents
The flushing pipeline of pyrolysis oven in a kind of denitrating system Download PDFInfo
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- CN208703577U CN208703577U CN201821355659.9U CN201821355659U CN208703577U CN 208703577 U CN208703577 U CN 208703577U CN 201821355659 U CN201821355659 U CN 201821355659U CN 208703577 U CN208703577 U CN 208703577U
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Abstract
The utility model provides a kind of flushing pipeline of pyrolysis oven in denitrating system, belongs to field of mechanical technique.It solves the problems, such as that existing denitrating system urea liquid flushing effect is poor.The flushing pipeline of pyrolysis oven includes cold water pipe in this denitrating system, hot-water branch one and flushing pipe for rinsing urea liquid, the outlet of cold water pipe and the outlet of hot-water branch one are connected with flushing pipe, the flushing pipeline further includes the condensate pipe drawn as the boiler controller system where denitrating system, the entrance of cold water pipe is connected with condensate pipe with the entrance of hot-water branch one, the arrangement on the outside of the flue where denitrating system on boiler controller system of hot-water branch one, flushing pipe is equipped with thermometer, and the flushing pipeline further include can be to the hot water regulating valve that hot water flow is adjusted and can be to the cold water regulating valve that cold water flow is adjusted.It has many advantages, such as that flushing effect is good, reduces boiler controller system thermal loss.
Description
Technical field
The utility model belongs to urea technique for production of ammonia field, is related to a kind of flushing pipeline more particularly to a kind of denitrating system
The flushing pipeline of middle pyrolysis oven.
Background technique
With the development of domestic social economy, the progress of science and technology, the increasingly improvement of people's living standard, society is to environment
Attention has reached unprecedented height.Equipment for denitrifying flue gas is composition indispensable when becoming power plant construction after desulfurizer
Part, and SCR gas denitrifying technology is that current denitration efficiency is relatively high, and at home and abroad power plant is most widely used, most mature
Denitration technology.Currently, most reducing agents use urea legal system ammonia system, urine in selective-catalytic-reduction denitrified (SCR) technique
Plain method is first to be completely dissolved in the demineralized water by urea solid particle in container, then that the urea of Pressure, Concentration, Temperature qualification is molten
After liquid is transported to holding vessel, then urea solution metering module is transported to by high flow capacity circulating pump, then urine is entered by control valve
After carrying out reaction generation ammonia in plain spray gun to pyrolysis oven, ammonia enters the reaction of nitrogen oxides in flue and flue gas, generates nitrogen
Gas and water, to cut down the nitrous oxides concentration in flue gas.
When urea spray gun is out of service, need to be rinsed inside pipeline and spray gun to transport urea solution, greatly
Most power plant are all to directly adopt cold water to use as flushing water, but the temperature of cold water is low, to the flushing effect of urea liquid
It is very poor, it can not thoroughly rinse well.The crystallization temperature that this is primarily due to urea liquid is relatively low, holds very much during the rinsing process
Easily occur some urea liquids to the cold water crystallization and be attached to the situation on tube wall, when again put into spray gun when, urea crystals meeting
It falls off, to easily cause the spray nozzle clogging of spray gun, and then urea liquid is caused to flow backward to compressed air pipe, so that urea liquid
It can not or only partially be able to enter in pyrolysis oven and decompose, to influence the generation of ammonia, influence denitration efficiency, lead to denitration system
The nitrous oxides concentration of system reactor outlet is exceeded, so that seriously affecting the economic and environment-friendly operation of unit safety.
In order to solve the problems, such as urea liquid crystallization and lead to spray gun and line clogging, for this purpose, people it is relatively common one
Kind of solution is come to the urea liquid spray gun and pipeline in pyrolysis oven from directly leading out a hot water line in boiler controller system
It is rinsed, causes urea spray gun or line clogging to avoid urea liquid crystallization, such as application No. is
201520812931.1 disclosed one kind prevent denitration pyrolysis oven urea spray gun and line clogging flushing pipeline, application No. is
The heat tracing of urea liquid conveyance conduit and rinse-system etc. disclosed in 201320413111.6, but can increase in this way
Add the loss of entire boiler controller system heat.
Summary of the invention
The purpose of this utility model is in view of the above-mentioned problems existing in the prior art, to propose and be pyrolyzed in a kind of denitrating system
The flushing pipeline of furnace, the technical problem to be solved is that the flushing effects for how improving pyrolysis oven.
The purpose of this utility model can be realized by the following technical scheme:
The flushing pipeline of pyrolysis oven in a kind of denitrating system, including cold water pipe, hot-water branch one and for rinsing urea
The flushing pipe of solution, the outlet of cold water pipe and the outlet of hot-water branch one are connected with flushing pipe, which is characterized in that the flushing
Pipeline further includes the condensate pipe drawn as the boiler controller system where denitrating system, the entrance and hot-water branch of the cold water pipe
One entrance is connected with condensate pipe, and the hot-water branch one is outside the flue where denitrating system on boiler controller system
Side arrangement, the flushing pipe be equipped with thermometer, and the flushing pipeline further include can be to the heat that hot water flow is adjusted
Water regulating valve and can be to the cold water regulating valve that cold water flow is adjusted.
When needing to be rinsed the urea liquid in pyrolysis oven, the partial coagulation water in condensate pipe flows into hot-water branch
In one, another part condensed water is flowed into branch pipe two, since hot-water branch one is along the cigarette where denitrating system on boiler controller system
Setting on the outside of road, and flue is because the reason of inside is with the presence of flue gas can be to the very high heat of external radiation, such hot-water branch one
Will carry out heat exchange with the high heat that exhale on the outside of flue, thus will to the condensed water being flowed into hot-water branch one into
Row heating forms it into the hot water with high-temperature, finally passes through cold water regulating valve pair according to field condition by unit staff
The flow of cold water is adjusted and passes through hot water regulating valve and the flow of hot water is adjusted, and makes cold water and hot water in flushing pipe
The flushing water with appropriate water temperature is mixed into be rinsed to pyrolysis oven.
The flushing pipeline of pyrolysis oven forms flushing water with cold water mix to be rinsed, together using hot water in this denitrating system
When configuration thermometer and combine hot water regulating valve and cold water regulating valve enable staff according to the situation at scene to hot water and
The flow of cold water is adjusted in time, and mixed flushing water is made to be in optimal flushing temperature always, to guarantee best
Flushing effect, well solved urea spray gun and the problem of pipeline is blocked because of crystallization.Moreover, because flue is inherently
Radiations heat energy can be carried out outward, and heat of the flue to external radiation is directly utilized in the flushing pipeline of pyrolysis oven in this denitrating system
Condensed water is heated, compared in routine directly from drawing for branch pipe carrys out hot-water supply in other hot water lines,
It not only can equally guarantee the flushing effect of pyrolysis oven while the heat of flue external radiation is also well utilized, reduce straight
Connect draw from other hot water lines a branch pipe carry out hot-water supply and caused by boiler controller system heat loss.
In above-mentioned denitrating system in the flushing pipeline of pyrolysis oven, the denitrating system includes Benitration reactor, institute
The flue stated is to be connected to denitration reactor inlet/exit flue.
Benitration reactor and pyrolysis oven are all the equipment in denitrating system, and distance is relatively close between the two, by hot water
The condensed water quilt that can make in hot-water branch one is arranged along denitration reactor inlet/exit flue outside is connected in branch pipe one
It is heated to be closer from pyrolysis oven after hot water, that is, the conveying distance of hot water is shorter.It can conveyed in this way to avoid hot water
In the process because conveying distance farther out due to the air long period carry out heat exchange, so as to cause hot water temperature reduction the problem of,
The loss of heat is further reduced while improving pyrolysis oven flushing effect.
In above-mentioned denitrating system in the flushing pipeline of pyrolysis oven, at the denitration reactor inlet/exit cigarette
Be equipped with insulating layer on the outside of road, the hot-water branch one is set at denitration reactor inlet/exit flue and insulating layer it
Between.
At denitration reactor inlet/exit flue on the outside of insulating layer is set, by by the setting of hot-water branch one de-
At nitre reactor inlet/and between exit flue and insulating layer, the heat that can completely cut off hot-water branch one and outside air in this way is handed over
It changes, so that the condensed water for being heated to be hot water in hot-water branch one be allow to keep higher temperature, is avoiding heat losses
Improve the flushing effect of pyrolysis oven again simultaneously.
In above-mentioned denitrating system in the flushing pipeline of pyrolysis oven, cavity is equipped on the inside of the insulating layer, it is described
Hot-water branch a part is located in cavity and the portion outboard wall of hot-water branch one and the inner wall of cavity fit.
Conventionally, the insulating layer inner sidewall being arranged on the outside of flue is all plane, to guarantee that insulating layer inner sidewall can
It is in fit-state with flue lateral wall.But due to arranging after hot-water branch one that can make is in not advise on the outside of flue on the outside of flue
Hot-water branch a part is arranged in cavity and the part of hot-water branch one for then shape, therefore cavity is arranged on the inside of insulating layer
The inner wall of lateral wall and cavity fits, and both formation between insulating layer and hot-water branch one can in this way be bonded to prevent hot water
The heat exchange of branch pipe one and outside air to improve the flushing effect of pyrolysis oven, while can guarantee original insulating layer and cigarette again
Close connection between road lateral wall avoids flue outside heat to external radiation.
In above-mentioned denitrating system in the flushing pipeline of pyrolysis oven, the insulating layer is made of heat-preservation cotton.
Heat-preservation cotton has good morphotropism and heat preservation property, is coated on the outside of flue using heat-preservation cotton composition insulating layer
When, heat-preservation cotton is in contact with hot-water branch one and by the good above-mentioned cavity of morphotropism self-assembling formation of heat-preservation cotton itself, from
And insulating layer is made closely to fit together with hot-water branch one, it is protected with preventing the heat exchange of hot-water branch one and outside air
Demonstrate,prove the flushing effect of pyrolysis oven.
In above-mentioned denitrating system in the flushing pipeline of pyrolysis oven, which further includes parallel with hot-water branch one
The hot-water branch two of setting, hot-water branch one and hot-water branch two are arranged on the outside of the same flue, the hot-water branch one
Entrance be connected with a hot-water line with the entrance of hot-water branch two, and the entrance of hot-water line is connected with condensate pipe,
The outlet of the hot-water branch one is connected with a hot water header with the outlet of hot-water branch two, and hot water header
Outlet be connected with flushing pipe with the outlet of cold water pipe, the thermometer is thermometer on the spot, and the cold water is adjusted
Valve is set on cold water pipe, and the hot water regulating valve is set on hot water header.
The entrance of hot-water branch one is connected with hot-water line with the entrance of hot-water branch two, and the entrance of hot-water line and solidifying
It bears water pipe to be connected, also means that the partial coagulation water in condensate pipe is flowed into hot-water line and is diverted to heat out of hot-water line
In water branch pipe one and hot-water branch two.Hot-water branch two and hot-water branch one are arranged in parallel and hot-water branch two and hot-water branch one
It is arranged along the outside of the same flue, that is to say, that the condensed water in condensed water and hot-water branch two in hot-water branch one can be same
When with flue carry out heat exchange, can guarantee in this way heat exchanging process more rationally, uniformly.Condensed water in hot-water branch one with
Condensed water in hot-water branch two is together flowed into hot water header after heat exchange is heated, then is united by hot water header
One mixes the room temperature condensed water in the condensed water and cold water pipe after heating in flushing pipe, is suitble to water temperature to be formed and be had
Flushing water is effectively to rinse pyrolysis oven.
In above-mentioned denitrating system in the flushing pipeline of pyrolysis oven, on the outside of the hot water header and on the outside of flushing pipe
Insulating aluminium skin is coated, and muff is set outside hot water regulating valve.
On the outside of the hot water header with coat Insulating aluminium skin on the outside of flushing pipe, while heat preservation is set outside hot water regulating valve
Set can cause in hot water header primarily to playing insulation effect to avoid heat exchange occurs with outside air in this way
Hot water temperature or flushing pipe in mixing water temperature reduce, to guarantee the flushing effect of pyrolysis oven.
In above-mentioned denitrating system in the flushing pipeline of pyrolysis oven, the condensate pipe is equipped with for controlling condensation
The main control valve of water pipe opening and closing.
Main control valve is set on condensate pipe primarily to facilitating unit staff can be to entire flushing pipeline
Enabling and stop carry out master control, avoid do not need rinse when hot-water branch one and hot-water branch two still and flue on the outside of
Heat exchange and the loss for causing heat.
In above-mentioned denitrating system in the flushing pipeline of pyrolysis oven, the flushing pipe is adjusted equipped with Self-operated pressure
Valve, on the spot pressure gauge, relief valve and maintenance control valve.
Since entire flushing pipeline is higher apart from ground, setting on the spot pressure gauge mainly for facilitating unit staff's energy
It is enough that the hydraulic pressure in flushing pipe is monitored in time, can be adjusted by self-contained pressure regulator when hydraulic pressure is excessively high with
Equipment is protected, avoids flushing water pressure excessive and pyrolysis furnace apparatus is damaged.Meanwhile be arranged maintenance control valve be in order to
Flushing pipe and other pipelines are disconnected when flushing pipe leaks, and can be by the flushing water in flushing pipe by setting relief valve
It releases so that staff conveniently repairs.
Compared with prior art, in this denitrating system the flushing pipeline of pyrolysis oven mixed using high-temperature water with condensed water come into
Row rinses, on the one hand avoid because rinse water temperature spend it is low due to there is the case where urea liquid crystallization, and then solve urea spray
The problem of rifle and pipeline are blocked because of crystallization improves the flushing effect of urea liquid in pyrolysis oven；It on the other hand again will not be because
For temperature is excessively high and sealing element or control valve is caused to damage, the operation stability of denitrating system itself ensure that.
Moreover, the flushing pipeline of pyrolysis oven is directly utilized flue and comes to the heat of external radiation to condensation in this denitrating system
Water is heated, and not only can equally guarantee the flushing effect of pyrolysis oven while the heat of flue external radiation is also well utilized
Amount, reduces the loss of boiler controller system heat.
Detailed description of the invention
Fig. 1 is the schematic diagram of the flushing pipeline of pyrolysis oven in this denitrating system.
Fig. 2 is in this denitrating system in the flushing pipeline of pyrolysis oven between hot-water branch one, hot-water branch two and flue
Distribution schematic diagram.
In figure, 1, flushing pipe；2, condensate pipe；3, hot-water line；4, cold water pipe；5, hot-water branch one；6, hot-water branch two；
7, flue；8, insulating layer；8a, cavity；9, hot water header；10, main control valve；11, hot water regulating valve；12, cold water regulating valve；
13, thermometer；14, self-contained pressure regulator；15, pressure gauge on the spot；16, relief valve；17, control valve is overhauled；18, boiler is auxiliary
Vapour desuperheat water pipe；19, three-way connection.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
Embodiment one
As shown in Figure 1, in a kind of denitrating system pyrolysis oven flushing pipeline, denitrating system includes pyrolysis oven, the flushing pipe
Road includes cold water pipe 4, hot-water branch 1, the flushing pipe 1 for rinsing pyrolysis oven and as the boiler controller system where denitrating system
The condensate pipe 2 of extraction, condensate pipe 2 are specifically that the auxiliary vapour desuperheat water pipe 18 of boiler from boiler controller system is drawn.Cold water pipe 4
Outlet and the outlet of hot-water branch 1 be connected with flushing pipe 1, the entrance of cold water pipe 4 and the entrance of hot-water branch 1 are equal
It is connected with condensate pipe 2, hot-water branch 1 is rinsed along as being arranged on the outside of the flue 7 on the boiler controller system where denitrating system
Pipe 1 is equipped with thermometer 13, and the flushing pipeline further include can to the hot water regulating valve 11 that hot water flow is adjusted and
It can be to the cold water regulating valve 12 that cold water flow is adjusted.
Specifically, denitrating system further includes Benitration reactor, and flue 7 is the flue 7 at denitration reactor inlet, also
It is hot-water branch 1 is arranged along being connected on the outside of the flue 7 at denitration reactor inlet, Benitration reactor is same with pyrolysis oven
For the equipment in denitrating system, distance between the two is relatively close, and one 5 edge of hot-water branch is connected to Benitration reactor and is entered
Setting can make the condensed water in hot-water branch 1 closer from pyrolysis oven on the outside of flue at mouthful, that is, make the defeated of hot water
It send distance shorter, can be carried out due to conveying distance is distant with the air long period during transportation to avoid hot water in this way
Heat exchange.
As depicted in figs. 1 and 2, insulating layer 8 is equipped on the outside of the flue 7 at denitration reactor inlet, hot-water branch 1 is set
It is placed at denitration reactor inlet between flue 7 and insulating layer 8.Cavity 8a, one 5 part of hot-water branch are equipped on the inside of insulating layer 8
In cavity 8a and the portion outboard wall of hot-water branch 1 and the inner wall of cavity 8a fit.Insulating layer 8 is specifically by keeping the temperature
What cotton was constituted, when the insulating layer 8 that heat-preservation cotton forms is coated on 7 outside of flue, insulating layer 8 can be in contact with hot-water branch 1
And by the good morphotropism self-assembling formation cavity 8a of heat-preservation cotton itself, to keep insulating layer 8 and hot-water branch 1 tight
Thickly fit together.
As depicted in figs. 1 and 2, this flushing pipeline further includes hot-water branch 26, and hot-water branch 26 and hot-water branch 1 are flat
Row setting, and hot-water branch 1 is arranged on the outside of the flue 7 being connected at denitration reactor inlet with hot-water branch 26, heat
Water branch pipe 26 is also disposed between insulating layer 8 and the inlet flue 7 of Benitration reactor.The entrance and hot water of hot-water branch 1
The entrance of branch pipe 26 is connected with a hot-water line 3, and the entrance of the entrance of cold water pipe 4 and hot-water line 3 is and condensate pipe
2 are connected, and cold water pipe 4, hot-water line 3 and condensate pipe 2 are specifically to realize connection, hot-water branch 1 using three-way connection 19
Outlet be connected with a hot water header 9 with the outlet of hot-water branch 26, and outlet and the cold water of hot water header 9
The outlet of pipe 4 is connected with flushing pipe 1, and hot water header 9, cold water pipe 4 and flushing pipe 1 are realized also with three-way connection 19
Connection.
As shown in Figure 1, condensate pipe 2 is equipped with the main control valve 10 for controlling the opening and closing of condensate pipe 2, due to entirely rushing
Washing pipeline is to be introduced by condensate pipe 2, therefore main control valve 10 is arranged on condensate pipe 2, can be convenient boiler controller system work
Make personnel to the enabling of entire flushing pipeline and stop carry out master control, avoid do not need rinse when hot-water branch 1 still
The loss of heat is caused with 7 outside heat exchange of flue.
When needing to be rinsed pyrolysis oven, boiler controller system staff controls main control valve 10 and opens, and makes condensate pipe 2
Interior condensed water separately flows into hot-water line 3 and cold water pipe 4.Since flue 7 of the hot-water line 3 at denitration reactor inlet is punished
Stream is hot-water branch 1 and hot-water branch 26, and hot-water branch 1 and hot-water branch 26 are along denitration reactor inlet
It is arranged on the outside of flue 7, and the flue 7 at denitration reactor inlet can give off very high heat outward, therefore flow into hot water
Condensed water in pipe 3 can be diverted in hot-water branch 1 and hot-water branch 26, and hot-water branch 1 and 26 meeting of hot-water branch
Heat exchange is carried out with the high heat that radiates on the outside of flue 7 respectively, thus will condensation to being flowed into hot-water branch 1
Water and the condensed water being flowed into hot-water branch 26 carry out heating and form it into the hot water for comparing high-temperature, last heat
Hot water in water branch pipe 1 is flowed into hot water header 9 together with the hot water in branch pipe three, then by 9 unification of hot water header
Room temperature condensed water in condensed water and cold water pipe 4 after heating is mixed in flushing pipe 1, so that being formed has appropriate water temperature
Flushing water is effectively to rinse pyrolysis oven.
The flushing pipeline of pyrolysis oven is mixed to form flushing water using condensed water in high temperature and room temperature condensed water in this denitrating system
Pyrolysis oven is rinsed, on the one hand avoids and the case where urea liquid crystallization occurs because of rinse water temperature degree of spending, in turn
It solves the problems, such as that urea spray gun and pipeline are blocked because of crystallization, improves the flushing effect of urea liquid in pyrolysis oven；It is another
For aspect since many sealing elements or control valve can be arranged on the urea pipeline and urea spray gun in pyrolysis oven, use is mixed
Flushing water will not cause sealing element or control valve to damage because temperature is excessively high again, ensure that the operation of denitrating system itself is steady
It is qualitative.Moreover, because flue 7 can inherently carry out radiations heat energy outward, the flushing pipeline of pyrolysis oven in this denitrating system
Directly flue 7 is utilized to the heat of external radiation to heat to condensed water, compared in routine directly from other hot-water lines 3
Draw a branch pipe in road to come for hot-water supply, not only can equally guarantee the flushing effect of pyrolysis oven while also well utilize
The heat of 7 external radiation of flue, reduce directly draw from other 3 tunnels of hot-water line a branch pipe carry out hot-water supply and caused by
The loss of boiler controller system heat, while being also due to hot water is to be got by heat exchange method, therefore the temperature of hot water is unstable,
It can guarantee that the temperature of flushing water is in best always in such a way that hot and cold water mixes and combines hot and cold water flow allocating in this way
Flushing temperature.
As shown in Figure 1, in addition, thermometer 13 is specially thermometer on the spot by the way that thermometer 13 is arranged in flushing pipe 1,
Facilitate unit staff that can be monitored in mixing water temperature of the ground to flushing pipe 1, while hot water regulating valve 11 being arranged
On hot water header 9, cold water control valve 12 is arranged on cold water pipe, enables unit staff according to the feelings at scene
Condition is in time adjusted the flow of hot water and cold water, and mixed flushing water is made to be in optimal flushing temperature always, thus
Preferably the urea liquid in pyrolysis oven is rinsed.
In addition, being coated with Insulating aluminium skin in 9 outside of hot water header and 1 outside of flushing pipe, and outside hot water regulating valve 11
It is provided with muff.Insulating aluminium skin is coated in 9 outside of hot water header and 1 outside of flushing pipe, while in hot water regulating valve 11
Outer setting muff can cause primarily to playing insulation effect to avoid because heat exchange occurs with outside air in this way
Mixing flushing water temperature in hot water temperature or flushing pipe 1 in hot water header 9 reduces, to guarantee the flushing effect of pyrolysis oven
Fruit.
As shown in Figure 1, be additionally provided in flushing pipe 1 self-contained pressure regulator 14, on the spot pressure gauge 15, relief valve 16 with
And maintenance control valve 17.Since entire flushing pipeline is higher apart from ground, setting on the spot pressure gauge 15 mainly for facilitating unit
Staff can in time be monitored the hydraulic pressure in flushing pipe 1, can be adjusted by Self-operated pressure when hydraulic pressure is excessively high
Valve 14 is adjusted to protect equipment, avoids flushing water pressure excessive and damages to pyrolysis furnace apparatus.Meanwhile maintenance is set
Control valve 17 is and to pass through setting relief valve 16 to disconnect flushing pipe 1 and other pipelines when flushing pipe 1 leaks
Flushing water in flushing pipe 1 can be released so that staff conveniently repairs.
Embodiment two
The present embodiment is essentially identical with the structure and principle of embodiment one, the difference is that: in the present embodiment, hot water
Branch pipe 1 is arranged on the outside of the flue 7 in Benitration reactor exit with hot-water branch 26.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (9)
1. the flushing pipeline of pyrolysis oven in a kind of denitrating system, including cold water pipe (4), hot-water branch one (5) and for rinsing
The flushing pipe (1) of urea liquid, the outlet of cold water pipe (4) and the outlet of hot-water branch one (5) are connected with flushing pipe (1),
It is characterized in that, the flushing pipeline further includes the condensate pipe (2) drawn as the boiler controller system where denitrating system, described is cold
The entrance of water pipe (4) is connected with condensate pipe (2) with the entrance of hot-water branch one (5), described hot-water branch one (5) edge
Arrangement on the outside of flue (7) where denitrating system on boiler controller system, the flushing pipe (1) are equipped with thermometer (13), and
The flushing pipeline further includes that can carry out to the hot water regulating valve (11) that hot water flow is adjusted and to cold water flow
The cold water regulating valve (12) of adjusting.
2. the flushing pipeline of pyrolysis oven in denitrating system according to claim 1, which is characterized in that the denitrating system
Including Benitration reactor, the flue (7) is to be connected to denitration reactor inlet/exit flue (7).
3. the flushing pipeline of pyrolysis oven in denitrating system according to claim 1, which is characterized in that the denitration reaction
Insulating layer (8) are equipped on the outside of device inlet/exit flue (7), the hot-water branch one (5) is set to Benitration reactor and enters
At mouthful/between exit flue (7) and insulating layer (8).
4. the flushing pipeline of pyrolysis oven in denitrating system according to claim 3, which is characterized in that the insulating layer
(8) inside is equipped with cavity (8a), and the hot-water branch one (5) is partially located in cavity (8a) and the portion of hot-water branch one (5)
The inner wall of outer side wall and cavity (8a) fits.
5. the flushing pipeline of pyrolysis oven in denitrating system according to claim 4, which is characterized in that the insulating layer
(8) it is made of heat-preservation cotton.
6. the flushing pipeline of pyrolysis oven in denitrating system described according to claim 1 or 2 or 3 or 4 or 5, which is characterized in that should
Flushing pipeline further includes and hot-water branch one (5) hot-water branch two (6) disposed in parallel, hot-water branch one (5) and hot-water branch
Two (6) are arranged on the outside of the same flue (7), and the entrance of the entrance and hot-water branch two (6) of the hot-water branch one (5) is equal
It is connected with a hot-water line (3), and the entrance of hot-water line (3) is connected with condensate pipe (2), the hot-water branch one
(5) outlet is connected with a hot water header (9) with the outlet of hot-water branch two (6), and hot water header (9) go out
Mouth is connected with flushing pipe (1) with the outlet of cold water pipe (4), and the thermometer (13) is thermometer on the spot, and described is cold
Water regulating valve (12) is set on cold water pipe (4), and the hot water regulating valve (11) is set on hot water header (9).
7. the flushing pipeline of pyrolysis oven in denitrating system according to claim 6, which is characterized in that the hot water afflux
It manages and coats Insulating aluminium skin with flushing pipe (1) outside on the outside of (9), and muff is arranged in hot water regulating valve (11) outside.
8. the flushing pipeline of pyrolysis oven in denitrating system according to claim 1, which is characterized in that the condensate pipe
(2) it is equipped with the main control valve (10) for controlling condensate pipe (2) opening and closing.
9. the flushing pipeline of pyrolysis oven in denitrating system according to claim 1, which is characterized in that the flushing pipe
(1) self-contained pressure regulator (14), on the spot pressure gauge (15), relief valve (16) and maintenance control valve (17) are equipped with.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758342A (en) * | 2018-08-17 | 2018-11-06 | 华能国际电力股份有限公司玉环电厂 | The flushing line of pyrolysis oven in a kind of denitrating system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758342A (en) * | 2018-08-17 | 2018-11-06 | 华能国际电力股份有限公司玉环电厂 | The flushing line of pyrolysis oven in a kind of denitrating system |
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