CN206229174U - Oil field fuel oil injection boiler tail gas desulfurization denitration process system - Google Patents
Oil field fuel oil injection boiler tail gas desulfurization denitration process system Download PDFInfo
- Publication number
- CN206229174U CN206229174U CN201621091951.5U CN201621091951U CN206229174U CN 206229174 U CN206229174 U CN 206229174U CN 201621091951 U CN201621091951 U CN 201621091951U CN 206229174 U CN206229174 U CN 206229174U
- Authority
- CN
- China
- Prior art keywords
- outlet
- tower
- heat exchanger
- desulfurizing tower
- injection boiler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model provides a kind of oil field fuel oil injection boiler tail gas desulfurization denitration process system based on secondary heat exchange, mainly include denitrating tower, desulfurizing tower, lye tank (vat) and heat-exchange system, the smoke inlet of denitrating tower is connected with the exhanst gas outlet of injection boiler, the exhanst gas outlet of denitrating tower is connected with heat-exchange system, heat-exchange system is connected with the smoke inlet of desulfurizing tower, and the exhanst gas outlet of desulfurizing tower is connected with chimney；Spraying mechanism is disposed with inside desulfurizing tower, the nozzle of spraying mechanism is connected with by the first pipeline with lye tank (vat)；The bottom of desulfurizing tower offers waste liquid outlet, and waste liquid outlet is connected with cesspool.The beneficial effects of the utility model are：SO in exclusion flue gas can effectively be reduced2And NOxContent, reach discharging standards, reduce atmosphere pollution；In the denitration sweetening process to flue gas, fume afterheat is recycled, reduce the consumption of raw materials amount of subsequent heat, reduce production and operating cost, meet the requirement of energy-conserving and environment-protective.
Description
Technical field
The utility model is related to a kind of boiler exhaust gas desulphurization denitration processing system, and in particular to a kind of oil field fuel oil steam injection pot
The desulphurization denitration processing system of furnace exhaust gas.
Background technology
The eighties in 20th century, China proceeded by the research work of thickened oil recovery, and entered from foreign countries' introduction uphole steam generator
Row steam flooding.With the continuous expansion of thermal recovery scale, increasing uphole steam generator comes into operation.
Injection boiler is broadly divided into gas fired-boiler, oil burning boiler, three kinds of coal-burning boiler according to the difference of fuel.With Shengli Oil
As a example by field, the quantity of current fuel oil steam injection boiler accounts for more than the 70% of injection boiler total amount.According to《Boiler Air Pollutant Emission
Standard》Requirement, using oil burning boiler SO2And NOxEmission limit be respectively 300mg/m3And 400mg/m3, newly-built fuel oil pot
Stove SO2And NOxEmission limit be respectively 200mg/m3And 250mg/m3.At the same time, country and each place government are dirty to air
The collection of drainage dues standard for contaminating thing is also more and more stricter.
At present, the SO in fuel oil steam injection boiler emission2Generally higher than 1000mg/m3, NOxConcentration also in 500mg/
m3Left and right, beyond discharge index.Strict demand due to environmental regulations to boiler pollutant discharge standard, oil field fuel oil steam injection
Boiler is badly in need of installing tail gas desulfurization denitration treatment device, and to reach discharge standard, otherwise built fuel oil steam injection boiler is by face
Face the awkward situation closed down, so as to influence the normal production in oil field.
It is portable boiler that fuel oil steam injection boiler is most of, and dispersed placement, boiler exhaust gas temperature is relatively low（160~220 DEG C）,
It is difficult by；Contain tar ingredients in flue gas, therefore, develop a kind of desulphurization denitration handling process suitable for fuel oil steam injection boiler
Seem particularly urgent.
The content of the invention
The purpose of this utility model is, in view of the shortcomings of the prior art, there is provided a kind of oil field fuel oil note of energy-conserving and environment-protective
Boiler furnace tail gas desulfurization denitration process system.
The technical solution adopted in the utility model is：A kind of oil field fuel oil injection boiler tail gas desulfurization based on secondary heat exchange
Denitration process system, mainly including denitrating tower, desulfurizing tower, lye tank (vat) and heat-exchange system, the outer wall of the denitrating tower is provided with mixing
Spray gun, the entrance of mixture spray gun is connected with air-blaster and reducing agent supply line respectively, and the shower nozzle of mixture spray gun stretches into de-
In nitre tower；The smoke inlet of denitrating tower is connected with the exhanst gas outlet of injection boiler, exhanst gas outlet and the heat-exchange system phase of denitrating tower
Even, heat-exchange system is connected with the smoke inlet of desulfurizing tower, and the exhanst gas outlet of desulfurizing tower is connected with chimney；It is disposed with inside desulfurizing tower
Spraying mechanism, the nozzle of spraying mechanism is connected with by the first pipeline with lye tank (vat)；The bottom of desulfurizing tower offers waste liquid outlet,
Waste liquid outlet is connected with cesspool.
By such scheme, the heat-exchange system includes First Heat Exchanger, the second heat exchanger and the first four-way connection, described de-
The exhanst gas outlet of nitre tower is connected with the thermal source inlet of First Heat Exchanger, and the thermal source outlet of First Heat Exchanger enters with the flue gas of desulfurizing tower
Mouth connection；The low-temperature receiver entrance of First Heat Exchanger is connected with the first outlet of the first four-way connection, the low-temperature receiver of the First Heat Exchanger
Outlet is connected with the thermal source inlet of the second heat exchanger, and the thermal source outlet of the second heat exchanger is connected with lye tank (vat)；Second heat exchanger
Low-temperature receiver entrance is connected with softened water supply line, and the low-temperature receiver outlet of the second heat exchanger is connected with the softening water inlet of injection boiler；
The entrance of the first four-way connection is connected by second pipe with the waste liquid outlet of desulfurizing tower, the second outlet of the first four-way connection with
Cesspool is connected, and the 3rd of the first four-way connection exports and the first pipeline communication.
By such scheme, the desulfurizing tower is installed on liquid level gauge, and flow control valve, liquid level are installed on the second pipe
Meter is connected with flow control valve.
By such scheme, the reducing agent provided in the reducing agent supply line is the one kind in liquefied ammonia, ammoniacal liquor, urea.
By such scheme, the denitrating tower internal upper part is disposed with activated carbon filter layer；Between the lower section of activated carbon filter layer
Every catalyst filling layer is disposed with, low temperature SCR denitration catalyst is filled with the catalyst filling layer.
The utility model additionally uses a kind of oil field fuel oil injection boiler tail gas desulfurization denitration process based on secondary desulfuration
System, mainly including denitrating tower, cyclone separator, desulfurizing tower and lye tank (vat), the outer wall of the denitrating tower is provided with mixture spray gun, mixes
The entrance for closing spray gun is connected with air-blaster and reducing agent supply line respectively, and the shower nozzle of mixture spray gun is stretched into denitrating tower；
The smoke inlet of the denitrating tower is connected with the exhanst gas outlet of injection boiler, and the exhanst gas outlet of denitrating tower is by the 3rd pipeline and rotation
The entrance of wind separator is connected, and the solid-liquid outlet of cyclone separator bottom is connected with useless solid groove, and the gas of cyclone separator goes out
Mouth is connected with the smoke inlet of desulfurizing tower, and the exhanst gas outlet of desulfurizing tower is connected with chimney, and spraying mechanism is disposed with inside desulfurizing tower,
The nozzle of spraying mechanism is located at the top of desulfurizing tower, and the nozzle of spraying mechanism is connected with lye tank (vat)；The bottom of desulfurizing tower opens up
There are waste liquid outlet, waste liquid outlet and the 4th pipeline communication.
By such scheme, the processing system includes the second four-way connection, the entrance of the second four-way connection and the 4th pipeline,
The first outlet of the second four-way connection is connected with cesspool, the second outlet of the second four-way connection and the 3rd pipeline communication, second
3rd outlet of four-way connection and the 5th pipeline communication, one end of the 5th pipeline connect with lye tank (vat), the other end of the 5th pipeline
Connected with the thermal source inlet of the second heat exchanger through lean pump, the thermal source outlet of the second heat exchanger is connected with spraying mechanism；Described
The low-temperature receiver entrance of two heat exchangers is connected by softening water pump with softened water supply line, and the low-temperature receiver of the second heat exchanger is exported and steam injection
The softening water inlet connection of boiler.
By such scheme, the desulfurizing tower is installed on liquid level gauge, and flow control valve, liquid level are installed on the second pipe
Meter is connected with flow control valve.
By such scheme, the reducing agent provided in the reducing agent supply line is the one kind in liquefied ammonia, ammoniacal liquor, urea.
By such scheme, the denitrating tower internal upper part is disposed with activated carbon filter layer；Between the lower section of activated carbon filter layer
Every catalyst filling layer is disposed with, low temperature SCR denitration catalyst is filled with the catalyst filling layer.
The beneficial effects of the utility model are：
1）The two schemes that the utility model is used can effectively reduce SO in exclusion flue gas2And NOxContent, reach it
To discharging standards, atmosphere pollution is reduced；In the denitration sweetening process to flue gas, fume afterheat is carried out to reclaim profit
With：Scheme one and scheme two heat and soften water by secondary heat exchange, and softening is improve while flue gas discharge temperature is reduced
Water enters the temperature of injection boiler, reduces the consumption of raw materials amount of subsequent heat, reduces production and operating cost, meets energy-saving ring
The requirement of guarantor.
2）The control signal of the flow control valve in the utility model comes from liquid level gauge, realizes out flow quantity with desulfurizing tower
Liquid level coordinated signals.
3）Cyclone separator is set up in scheme two, flue gas is mixed with desulfurizing agent rich solution before cyclone separator is entered
Heat exchange, flue gas is water by the solvent in rich solution, and gas solid separation is carried out by cyclone separator, on the one hand reduces flue gas and enters de-
Sulphur tower temperature degree, the reduction system amount of disposing waste liquid；On the other hand it is also that once desulfurization has been carried out to flue gas（Two are carried out in desulfurizing tower
Secondary desulfurization）, fully reduce SO when flue gas is discharged2Content.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment one.
Fig. 2 is the structural representation of the utility model embodiment two.
Wherein：1st, air-blaster；2nd, mixture spray gun；3rd, denitrating tower；4th, smoke induced draught fan；5th, First Heat Exchanger；6th, it is rich
Liquid pump；7th, lye tank (vat)；8th, lean pump；9th, desulfurizing tower；10th, the second heat exchanger；11st, water pump is softened；12nd, liquid level gauge；13rd, flow is adjusted
Section valve；14th, give up solid groove；15th, reducing agent supply line；16th, injection boiler；17th, spraying mechanism；18th, cesspool；19th, the first pipe
Road；20th, cyclone separator；21st, second pipe；22nd, the 3rd pipeline；23rd, the 4th pipeline；24th, the 5th pipeline.
Specific embodiment
In order to more fully understand the utility model, further is made to the utility model with specific embodiment below in conjunction with the accompanying drawings
Ground description.
The utility model provides two kinds of tail gas denitration desulfurization process schemes.Scheme one：One kind as shown in Figure 1 is based on two
The oil field fuel oil injection boiler tail gas desulfurization denitration process system of secondary heat exchange, mainly includes denitrating tower 3, desulfurizing tower 9, lye tank (vat) 7
And heat-exchange system, the outer wall of denitrating tower 3 is provided with mixture spray gun 2, the entrance of mixture spray gun 2 respectively with air-blaster 1 and reduction
Agent supply line 15 is connected, and the shower nozzle of mixture spray gun 2 is stretched into denitrating tower 3, for denitrating flue gas provide air and reducing agent；Denitration
The smoke inlet of tower 3 is connected with the exhanst gas outlet of injection boiler 16, and the smoke inlet of denitrating tower 3 is located at the top of mixture spray gun 2；
The exhanst gas outlet of denitrating tower 3 is connected with the entrance of smoke induced draught fan 4（The smoke inlet of denitrating tower 3 is located at the top of denitrating tower 3,
The exhanst gas outlet of denitrating tower 3 is located at the bottom of denitrating tower 3）, the outlet of smoke induced draught fan 4 is connected with heat-exchange system, heat-exchange system
Smoke inlet with desulfurizing tower 9 is connected, and the exhanst gas outlet of desulfurizing tower 9 is connected with chimney（The smoke inlet of desulfurizing tower 9 is located at desulfurization
The bottom of tower 9, the exhanst gas outlet of desulfurizing tower 9 is located at the top of desulfurizing tower 9）；Spraying mechanism 17 is disposed with inside desulfurizing tower 9, is sprayed
The nozzle for drenching mechanism 17 is located at the top of desulfurizing tower 9, the nozzle of spraying mechanism 17 and the outlet of lean pump 8, lean pump 8
Entrance is connected by the first pipeline 19 with lye tank (vat) 7；The bottom of desulfurizing tower 9 offers waste liquid outlet, waste liquid outlet and cesspool
18 connections.
Heat-exchange system includes First Heat Exchanger 5, the second heat exchanger 10 and the first four-way connection, the flue gas of the denitrating tower 3
Outlet is connected by smoke induced draught fan 4 with the thermal source inlet of First Heat Exchanger 5, thermal source outlet and the desulfurizing tower 9 of First Heat Exchanger 5
Smoke inlet connection；The low-temperature receiver entrance of First Heat Exchanger 5 is connected by rich solution pump 6 with the first outlet of the first four-way connection,
The low-temperature receiver outlet of First Heat Exchanger 5 is connected with the thermal source inlet of the second heat exchanger 10；The thermal source outlet and alkali of the second heat exchanger 10
Liquid bath 7 is connected；The low-temperature receiver entrance of the second heat exchanger 10 is connected by softening water pump 11 with softened water supply line, the second heat exchanger
10 low-temperature receiver outlet is connected with the softening water inlet of injection boiler 16；The entrance of first four-way connection passes through second pipe 21
Waste liquid outlet with desulfurizing tower 9 is connected, and the second outlet of the first four-way connection is connected with cesspool 18, and the of the first four-way connection
Three outlets are connected with the first pipeline 19.
Scheme two：A kind of oil field fuel oil injection boiler tail gas desulfurization denitration process based on secondary desulfuration as shown in Figure 2
System, mainly includes denitrating tower 2, cyclone separator 20, desulfurizing tower 9 and lye tank (vat) 7, and the outer wall of the denitrating tower 3 is provided with mixing
Spray gun 2, the entrance of mixture spray gun 2 is connected with air-blaster 1 and reducing agent supply line 15 respectively, the shower nozzle of mixture spray gun 2
Stretch into denitrating tower 3, for denitrating flue gas provide air and reducing agent；The smoke inlet of denitrating tower 3 and the flue gas of injection boiler 16
Outlet, the exhanst gas outlet of denitrating tower 3 is connected with the entrance of smoke induced draught fan 4, and the outlet of smoke induced draught fan 4 is by the 3rd pipe
Road 22 is connected with the entrance of cyclone separator 20, and the solid-liquid outlet of the bottom of cyclone separator 20 is connected with useless solid groove 14, whirlwind
The gas vent of separator 20 is connected with the smoke inlet at the top of desulfurizing tower 9, and the exhanst gas outlet of desulfurizing tower 9 is connected with chimney, takes off
The waste liquid outlet of the bottom of sulphur tower 9 is connected with the 4th pipeline 23.
4th pipeline 23 is connected with the entrance of the second four-way connection, and first outlet and the cesspool 18 of the second four-way connection connect
Logical, the second outlet of the second four-way connection is connected with the entrance of rich solution pump 6, and the outlet of rich solution pump 6 passes through pipeline and second pipe
22 connections, the 3rd outlet of the second four-way connection is connected with the 5th pipeline 24, and one end of the 5th pipeline 24 connects with lye tank (vat) 7,
The other end of the 5th pipeline 24 is connected through lean pump 8 with the thermal source inlet of the second heat exchanger 10, and the thermal source of the second heat exchanger 10 goes out
Mouth is connected with spraying mechanism 17, and the arrangement of nozzles of spraying mechanism 17 is in the inside of desulfurizing tower 9；The low-temperature receiver of second heat exchanger 10
Entrance is connected by softening water pump 11 with softened water supply line, and the low-temperature receiver outlet of the second heat exchanger 10 is soft with injection boiler 16
Change water inlet connection.
Scheme one is identical with the structure of desulfurizing tower with denitrating tower in scheme two.Liquid level gauge 12 is installed in desulfurizing tower 9, it is and de-
Flow control valve 13, liquid level gauge 12 and the phase of flow control valve 13 are respectively installed on the connected pipeline of the waste liquid outlet of sulphur tower 9
Even, the control signal of flow control valve 13 comes from liquid level gauge 12, realizes out the liquid level coordinated signals of flow quantity and desulfurizing tower 9.It is de-
The reducing agent of nitre tower 3 can be using liquefied ammonia, ammoniacal liquor, urea etc.；The internal upper part of denitrating tower 3 is disposed with activated carbon filter layer, and flue gas is entered
Row oil removing dedusting is pre-processed；There are catalyst filling layer, the catalyst filling layer in the lower section arranged for interval of activated carbon filter layer
It is interior filled with the low temperature SCR denitration catalyst being adapted with flue-gas temperature, the active temperature of such catalyst and pending cigarette
Temperature degree is consistent.The desulfurizing agent that desulfurizing tower 9 is used is soda, to the SO in flue gas2Absorbed.
As a example by following 11t/h fuel oil steam injection boilers, the specific work process to scheme one is illustrated, wherein, flue gas flow
About 20000m3/h；The initial temperature of flue gas is 200 DEG C or so；SO in flue gas2Content be 1200mg/m3, NOxContent be
550mg/m3；The volume of activated carbon filter layer is 1.1m3 in denitrating tower 3, and the cumulative volume of catalyst filling layer is 5.2m3；Desulfurization
The circular flow of agent is 36m3/h.Flue gas enters from after the discharge of injection boiler 16 from the top of denitrating tower 3, in denitrating tower 3 first
Oil removing dedusting, then through catalyst filling layer denitration after, in the presence of smoke induced draught fan 4 enter First Heat Exchanger 5；Flue gas is
With the heat exchange of desulfurizing agent rich solution in one heat exchanger 5, the flue-gas temperature after heat exchange is reduced to 120 DEG C and enters desulfurizing tower 9；While and alkali lye
The spraying mechanism 17 of the connection of groove 7 carries out desulfurization process in the top spray desulfurizing agent of desulfurizing tower 9 to flue gas；Flue gas after desulfurization from
The top of desulfurizing tower 9 is discharged into chimney, and the desulfurizing agent rich solution after desulfurization is discharged from the bottom of desulfurizing tower 9, and partial desulfurization agent is rich
Liquid enters cesspool 18, and partial desulfurization agent rich solution enters the first pipeline 19, mixes laggard with the desulfurizing agent lean solution from lye tank (vat) 7
Enter the spray desulfurization of desulfurizing tower 9；Partial desulfurization agent rich solution enters First Heat Exchanger 5 through rich solution pump 6；In the First Heat Exchanger 5 and cigarette
After gas heat exchange, desulfurizing agent rich solution temperature is increased to 75 DEG C, into the second heat exchanger 10 and softened water heat exchange, the desulfurizing agent after heat exchange
Rich solution is recycled into lye tank (vat) 7, and the softening coolant-temperature gage after heat exchange sends to boiler after being increased to 45 DEG C by 20 DEG C.After testing,
Last its SO of the flue gas of discharge from chimney2And NOxContent be below 100mg/m3；After softening coolant-temperature gage rising, injection boiler
16 firing rate reduces 5% or so.
As a example by following 11t/h fuel oil steam injection boilers, the specific work process to scheme two is illustrated, wherein, flue gas flow
About 20000m3/h；The initial temperature of flue gas is 200 DEG C or so；SO in flue gas2Content be 1200mg/m3, NOxContent be
550mg/m3；The volume of activated carbon filter layer is 1.1m3 in denitrating tower 3, and the cumulative volume of catalyst filling layer is 5.2m3；Desulfurization
The circular flow of agent is 36m3/ h, the initial temperature of softened water is 20 DEG C.After flue gas is discharged from the exhanst gas outlet of injection boiler 16,
Enter from the top of denitrating tower 3, the first oil removing dedusting in denitrating tower 3, then through catalyst filling layer denitration after, in the 3rd pipeline 22
It is interior to mix with the desulfurizing agent rich solution of 0.6t/h, once desulfurization process is carried out, meanwhile, flue gas and desulfurizing agent rich solution heat exchange, temperature
It is down to 120 DEG C；Flue gas is separated with desulfurizing agent rich solution in cyclone separator 20, and solid enters useless solid groove 14 after separation, after separation
The water vapour that flue gas carrying rich solution solvent is gasificated into enters desulfurizing tower 9, while the desulfurizing agent lean solution in lye tank (vat) 7 is in the second heat exchange
Enter spraying mechanism 17 with after softened water heat exchange in device 10, flue gas desulfurization is processed in desulfurizing tower 9；Flue gas after desulfurization is from de-
The top of sulphur tower 9 is discharged into chimney, and the desulfurizing agent rich solution temperature after desulfurization is increased to 75 DEG C or so, goes out from the waste liquid of desulfurizing tower
Mouth discharge, partial desulfurization agent rich solution circulation flows to the 3rd pipeline 22 and mixes with flue gas, and partial desulfurization agent rich solution is fed directly to dirt
Pond 18 carries out subsequent treatment, and partial desulfurization agent rich solution enters the 5th pipeline 24, mixes with the desulfurizing agent lean solution from lye tank (vat) 7
After be again introduced into the second heat exchanger and softened water and carry out heat exchange, the desulfurizing agent temperature after heat exchange is lowered into desulfurizing tower 9 and sprays
Desulfurization is drenched, the softening coolant-temperature gage after heat exchange is increased to 45 DEG C or so rear entrance injection boilers 16.After testing, finally arranged from chimney
The flue gas for going out its SO2And NOxContent be below 100mg/m3；After softening coolant-temperature gage rising, the firing rate of injection boiler 16 subtracts
Few 5% or so.
Preferred embodiment of the present utility model is these are only, the scope of the claims of the present utility model is not thereby limited, it is every
The equivalent structure or equivalent flow conversion made using the utility model specification and accompanying drawing content, or directly or indirectly fortune
Used in other related technical fields, similarly it is included in scope of patent protection of the present utility model.
Claims (10)
1. a kind of oil field fuel oil injection boiler tail gas desulfurization denitration process system based on secondary heat exchange, it is characterised in that main
Including denitrating tower, desulfurizing tower, lye tank (vat) and heat-exchange system, the outer wall of the denitrating tower is provided with mixture spray gun, and mixture spray gun enters
Mouth is connected with air-blaster and reducing agent supply line respectively, and the shower nozzle of mixture spray gun is stretched into denitrating tower；The cigarette of denitrating tower
Gas entrance is connected with the exhanst gas outlet of injection boiler, and the exhanst gas outlet of denitrating tower is connected with heat-exchange system, heat-exchange system and desulfurization
The smoke inlet of tower is connected, and the exhanst gas outlet of desulfurizing tower is connected with chimney；Spraying mechanism, spraying mechanism are disposed with inside desulfurizing tower
Nozzle connected with lye tank (vat) with by the first pipeline；The bottom of desulfurizing tower offers waste liquid outlet, waste liquid outlet and cesspool
Connection.
2. the oil field fuel oil injection boiler tail gas desulfurization denitration process system of secondary heat exchange is based on as claimed in claim 1, its
It is characterised by, the heat-exchange system includes First Heat Exchanger, the second heat exchanger and the first four-way connection, the flue gas of the denitrating tower
Outlet is connected with the thermal source inlet of First Heat Exchanger, and the thermal source outlet of First Heat Exchanger is connected with the smoke inlet of desulfurizing tower；The
The low-temperature receiver entrance of one heat exchanger is connected with the first outlet of the first four-way connection, the low-temperature receiver outlet and second of the First Heat Exchanger
The thermal source inlet connection of heat exchanger, the thermal source outlet of the second heat exchanger is connected with lye tank (vat)；The low-temperature receiver entrance of the second heat exchanger with
Softened water supply line is connected, and the low-temperature receiver outlet of the second heat exchanger is connected with the softening water inlet of injection boiler；One or four connects
The entrance of head is connected by second pipe with the waste liquid outlet of desulfurizing tower, and second outlet and the cesspool of the first four-way connection connect
Logical, the 3rd of the first four-way connection exports and the first pipeline communication.
3. the oil field fuel oil injection boiler tail gas desulfurization denitration process system of secondary heat exchange is based on as claimed in claim 2, its
It is characterised by, the desulfurizing tower is installed on liquid level gauge, flow control valve, liquid level gauge and flow control is installed on the second pipe
Valve processed is connected.
4. the oil field fuel oil injection boiler tail gas desulfurization denitration process system of secondary heat exchange is based on as claimed in claim 1, its
It is characterised by, the reducing agent provided in the reducing agent supply line is the one kind in liquefied ammonia, ammoniacal liquor, urea.
5. the oil field fuel oil injection boiler tail gas desulfurization denitration process system of secondary heat exchange is based on as claimed in claim 1, its
It is characterised by, the denitrating tower internal upper part is disposed with activated carbon filter layer；Urged in the lower section arranged for interval of activated carbon filter layer
Agent packing layer, low temperature SCR denitration catalyst is filled with the catalyst filling layer.
6. a kind of oil field fuel oil injection boiler tail gas desulfurization denitration process system based on secondary desulfuration, it is characterised in that main
Including denitrating tower, cyclone separator, desulfurizing tower and lye tank (vat), the outer wall of the denitrating tower is provided with mixture spray gun, mixture spray gun
Entrance is connected with air-blaster and reducing agent supply line respectively, and the shower nozzle of mixture spray gun is stretched into denitrating tower；The denitration
The smoke inlet of tower is connected with the exhanst gas outlet of injection boiler, and the exhanst gas outlet of denitrating tower passes through the 3rd pipeline and cyclone separator
Entrance be connected, the solid-liquid outlet of cyclone separator bottom is connected with useless solid groove, the gas vent of cyclone separator and desulfurization
The smoke inlet of tower is connected, and the exhanst gas outlet of desulfurizing tower is connected with chimney, and spraying mechanism, spraying mechanism are disposed with inside desulfurizing tower
Nozzle be located at the top of desulfurizing tower, the nozzle of spraying mechanism connects with lye tank (vat)；The bottom of desulfurizing tower offers waste liquid outlet,
Waste liquid outlet and the 4th pipeline communication.
7. the oil field fuel oil injection boiler tail gas desulfurization denitration process system of secondary desulfuration is based on as claimed in claim 6, its
It is characterised by, the processing system includes the second four-way connection, the entrance of the second four-way connection and the 4th pipeline, and the two or four connects
The first outlet of head is connected with cesspool, the second outlet of the second four-way connection and the 3rd pipeline communication, the second four-way connection
3rd outlet and the 5th pipeline communication, one end of the 5th pipeline connects with lye tank (vat), the other end of the 5th pipeline through lean pump and
The thermal source inlet connection of the second heat exchanger, the thermal source outlet of the second heat exchanger is connected with spraying mechanism；Second heat exchanger
Low-temperature receiver entrance is connected by softening water pump with softened water supply line, the low-temperature receiver outlet and the softening of injection boiler of the second heat exchanger
Water inlet is connected.
8. the oil field fuel oil injection boiler tail gas desulfurization denitration process system of secondary desulfuration is based on as claimed in claim 6, its
It is characterised by, the desulfurizing tower is installed on liquid level gauge, flow control valve, liquid level gauge and flow control is installed on the 4th pipeline
Valve processed is connected.
9. the oil field fuel oil injection boiler tail gas desulfurization denitration process system of secondary desulfuration is based on as claimed in claim 6, its
It is characterised by, the reducing agent provided in the reducing agent supply line is the one kind in liquefied ammonia, ammoniacal liquor, urea.
10. the oil field fuel oil injection boiler tail gas desulfurization denitration process system of secondary desulfuration is based on as claimed in claim 6, its
It is characterised by, the denitrating tower internal upper part is disposed with activated carbon filter layer；Urged in the lower section arranged for interval of activated carbon filter layer
Agent packing layer, low temperature SCR denitration catalyst is filled with the catalyst filling layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621091951.5U CN206229174U (en) | 2016-09-28 | 2016-09-28 | Oil field fuel oil injection boiler tail gas desulfurization denitration process system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621091951.5U CN206229174U (en) | 2016-09-28 | 2016-09-28 | Oil field fuel oil injection boiler tail gas desulfurization denitration process system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206229174U true CN206229174U (en) | 2017-06-09 |
Family
ID=58982498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621091951.5U Active CN206229174U (en) | 2016-09-28 | 2016-09-28 | Oil field fuel oil injection boiler tail gas desulfurization denitration process system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206229174U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106268235A (en) * | 2016-09-28 | 2017-01-04 | 中石化节能环保工程科技有限公司 | Oil field fuel oil injection boiler tail gas desulfurization denitration processing system |
| CN109046016A (en) * | 2018-09-14 | 2018-12-21 | 昆明理工大学 | A kind of method of relieving haperacidity End gas production high-concentration sulfuric acid |
-
2016
- 2016-09-28 CN CN201621091951.5U patent/CN206229174U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106268235A (en) * | 2016-09-28 | 2017-01-04 | 中石化节能环保工程科技有限公司 | Oil field fuel oil injection boiler tail gas desulfurization denitration processing system |
| CN109046016A (en) * | 2018-09-14 | 2018-12-21 | 昆明理工大学 | A kind of method of relieving haperacidity End gas production high-concentration sulfuric acid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106268235A (en) | Oil field fuel oil injection boiler tail gas desulfurization denitration processing system | |
| CN100443412C (en) | Method for treating tail gas and waste water from rare earth finished ore acid method burning process | |
| CN104014236A (en) | Smoke purifying and residual heat deep recycling integrated device | |
| CN203781842U (en) | New sulfur recovery device | |
| CN105727720A (en) | Spiral bubble flue gas cleaning device | |
| CN110559804B (en) | Flue gas desulfurization and regeneration integrated tower and flue gas desulfurization method | |
| CN105457486A (en) | Coke oven flue gas integrated treatment method | |
| CN103480260B (en) | Wet flue gas desulphurization technology by utilization of ethylene waste lye | |
| CN105195005A (en) | Dual-effect purification system for integrated treatment of coked fuel gas and ammonia containing wastewater | |
| CN206229174U (en) | Oil field fuel oil injection boiler tail gas desulfurization denitration process system | |
| CN105148699B (en) | A kind of single column oxidation sweetening denitrification apparatus and its desulfurization denitration method | |
| CN203886407U (en) | Flue gas purification and deep afterheat recycling integrated device | |
| CN110180311B (en) | Flue gas grading treatment device of waste incineration power plant | |
| CN106731558A (en) | A kind of solwution method flue gas desulfurization and denitrification integrated technique | |
| CN205145959U (en) | Coking flue gas and processing economic benefits and social benefits clean system that unifies including ammonia wastewater | |
| CN106731601A (en) | A kind of solwution method flue gas desulfurization and denitrification integrated apparatus | |
| CN207324462U (en) | A kind of three wastes boiler ammonia method desulfurizing system | |
| CN204114981U (en) | The treating apparatus of boiler smoke | |
| CN205659552U (en) | Purify device of catalysis flue gas | |
| CN101306321B (en) | Coal smoke desulfurization and dust removal device and its use method | |
| CN207928972U (en) | For hot waste gas environment-friendly processing unit | |
| CN211367469U (en) | Gasification pyrolysis system for recycling flue gas | |
| CN110746995A (en) | Gasification pyrolysis system for recycling flue gas and application thereof | |
| CN101069808A (en) | Ceramic multi-pipe boiler smoke desulfurizing dust-controlling apparatus | |
| CN205821082U (en) | A kind of synchronized desulfuring and denitrifying waste water reuse system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.38-2, Tangxun Hubei Road, Donghu New Technology Development Zone, Wuhan, Hubei 430223 Patentee after: SINOPEC PETROLEUM ENGINEERING JIANGHAN Corp. Address before: No.38-2, Tangxun Hubei Road, Donghu New Technology Development Zone, Wuhan, Hubei 430223 Patentee before: SINOPEC ENERGY CONSERVATION AND ENVIRONMENTAL PROTECTION ENGINEERING TECHNOLOGY Co.,Ltd. |