CN106247369B - Synthesis ammonia system desulfurization regeneration discharges gas recycle device and recoverying and utilizing method - Google Patents
Synthesis ammonia system desulfurization regeneration discharges gas recycle device and recoverying and utilizing method Download PDFInfo
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- CN106247369B CN106247369B CN201610819951.0A CN201610819951A CN106247369B CN 106247369 B CN106247369 B CN 106247369B CN 201610819951 A CN201610819951 A CN 201610819951A CN 106247369 B CN106247369 B CN 106247369B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/02—Preparation, purification or separation of ammonia
- C01C1/04—Preparation of ammonia by synthesis in the gas phase
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2217/00—Intercepting solids
- F23J2217/50—Intercepting solids by cleaning fluids (washers or scrubbers)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The invention belongs to a kind of synthesis ammonia system desulfurization regeneration release gas recycle device and recoverying and utilizing methods；Including regeneration tank, the top of regeneration tank is equipped with gas trap, the tube side that outlet at the top of gas trap passes sequentially through the first air-introduced machine, the shell side of heat exchanger, threeway and the second preheater is connected with combustion furnace, and the exhanst gas outlet of combustion furnace passes sequentially through superheater, waste heat boiler, the shell side of the second preheater, the shell side of the first preheater, the tube side of heat exchanger, the second air-introduced machine and water dust scrubber and is connected with chimney；The tube side import of first preheater is connected with atmosphere duct, and the third end of the tube side outlet threeway of the first preheater is connected, and is provided with air blower in the atmosphere duct；Have the advantages that simple structure and reasonable design, reduces production cost, reduces the wasting of resources, improves the burning efficiency of furnace and boiler smoke qualified discharge can be made.
Description
Technical field
The invention belongs to synthesis ammonia system desulfurization regenerations to discharge gas recovery technology field, and in particular to a kind of synthesis ammonia system
Desulfurization regeneration discharges gas recycle device and recoverying and utilizing method.
Background technique
Semiwater gas need to could be used after purification by latter workshop section in synthesis ammonia system.After carrying out cleaning and desulfurization
Solution, which needs to adsorb air using injector, carries out oxidation regeneration, while a part of remaining half water coal unstripped gas is released,
The main component of half water coal unstripped gas is that there are also a small amount of methane and hydrogen sulfide for carbon monoxide, at present this partial raw gas usually as
Exhaust gas is released in surrounding air, is had certain influence to environment, is resulted in waste of resources.
Summary of the invention
A kind of simple structure and reasonable design, reduction are provided it is an object of the invention to overcome in the prior art insufficient
Production cost reduces the wasting of resources, improves the burning efficiency of furnace and can make the synthesis ammonia system desulfurization of boiler smoke qualified discharge
Regeneration release gas recycle device and recoverying and utilizing method.
The object of the present invention is achieved like this: including regeneration tank, the top of regeneration tank is equipped with gas trap, and gas is caught
Outlet at the top of storage passes sequentially through the tube side and combustion furnace of the first air-introduced machine, the shell side of heat exchanger, threeway and the second preheater
It is connected, the exhanst gas outlet of combustion furnace passes sequentially through the shell of superheater, waste heat boiler, the shell side of the second preheater, the first preheater
Journey, the tube side of heat exchanger, the second air-introduced machine and water dust scrubber are connected with chimney；The tube side import of first preheater and air pipe
Road is connected, and the third end of the tube side outlet threeway of the first preheater is connected, and is provided with air blower in the atmosphere duct.
Preferably, the gas trap is inverted funnel-shaped structure, the bottom heavy caliber of inverted funnel-shaped structure
Part is collection chamber, and the small-bore top of inverted funnel-shaped structure is variable diameter room, the bottom of collection chamber and the top of regeneration tank
Be connected, the bottom of variable diameter room is equipped with demister, and the top of variable diameter room is equipped with gas trapping equipment, the gas trapping equipment by pipeline with
First air-introduced machine is connected.
Preferably, first check-valve and first flow are successively arranged between first air-introduced machine and the shell side of heat exchanger
Meter.
Preferably, second check-valve and are successively arranged between the shell side of the first preheater and the tube side of heat exchanger
Two flowmeters.
A kind of recoverying and utilizing method of synthesis ammonia system desulfurization regeneration release gas recycle device, includes the following steps:
Step 1: in regeneration tank desulfurization regeneration release gas by gas trap and the first air-introduced machine it is common under the action of
Into in the shell side of heat exchanger, desulfurization regeneration discharge gas in shell side with temperature in heat exchanger tube pass are as follows: 160 DEG C of burning kiln gas
It exchanges heat, the desulfurization regeneration release gas after heat exchange is warming up to 100 DEG C；The composition that desulfurization regeneration discharges gas is carbon monoxide, first
Alkane and hydrogen sulfide；
Step 2: the desulfurization regeneration release gas after heat exchange described in step 1 by threeway and passes through the first preheater
Temperature after tube side heat exchange are as follows: 140 DEG C of air is mixed, and mixed gas is changed by the tube side of the second preheater
It is combustion-supporting to enter progress in combustion furnace after heat；Temperature after the tube side that the mixed gas passes through the second preheater are as follows: 290
℃；
Step 3: the flue gas after combustion furnace burns is 800~900 DEG C, and flue gas is after superheater and waste heat boiler
Temperature are as follows: 360 DEG C, the temperature after the shell side heat exchange that 360 DEG C of flue gas passes through the second preheater are as follows: 200 DEG C, temperature is 200 DEG C
Flue gas pass through the temperature after the heat exchange of the shell side of the first preheater are as follows: 160 DEG C；
Step 4: temperature described in step 3 is temperature after 160 DEG C of flue gas is exchanged heat by the tube side of heat exchanger
Are as follows: 120 DEG C, temperature is that 120 DEG C of flue gas is discharged into atmosphere by the second air-introduced machine, water dust scrubber and chimney.
The present invention has the advantage that
1, the present invention can effectively solve the problem that the problem of recycling of half water coal unstripped gas is remained in actified solution, and improve desulfurization again
The operating condition of raw system, improves regeneration efficiency, and burning is improved as fuel using carbon monoxide, methane, hydrogen sulfide in release gas
The efficiency of furnace avoids the purpose of waste to reach energy conservation and environmental protection.
2, structure of the invention is simpler, simple process, and management operation and maintenance cost are low, will not be to existing production system
It has any impact, can effectively recycle desulfurization regeneration release gas, reduce air pollution, substantially improve desulfurization workshop section building ring
Border.
3, gas trap of the invention mainly uses inverted funnel-shaped structure, and lower layer's trapping utilizes original gas
" stack effect " and upper layer machinery air inducing generate local decompression's effect, reduce air inducing resistance, have reached guidance dead angle fraction
To the purpose of linear movement, reduces wind-force and shut off the energy loss of phenomenon, can be prevented by the baffle plate being arranged on gas trapping equipment
The gas overflowing only not trapped traps gas completely.
4, the present invention is exchanged heat using chimney high-temperature flue gas and desulfurization regeneration release gas, increases the gas temperature into stokehold
Degree improves the burning efficiency of furnace to improve the calorific value of combustion-supporting gas.After being collected by gas trap, in heat exchanger and out
First preheater combustion furnace high-temperature flue gas exchanges heat, the air of desulfurization regeneration after heat exchange release gas and the first preheater out into
Row mixing carries out secondary heat exchange into the second preheater and the burning kiln gas of medium temperature, and the gaseous mixture of the second preheater enters out
Combustion furnace burns, the flue gas of generation and superheater, waste heat boiler, the second preheater, the first preheater, heat exchanger carry out by
Grade heat exchange, can effectively improve heat exchange efficiency, and the flue gas after heat exchange send to water dust scrubber through the second air-introduced machine and carries out at environmental protection
Reason, is most discharged into atmosphere through chimney afterwards, avoids release gas from being directly discharged into atmosphere and causes to reduce efficient resource while environmental issue
Waste.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of gas trap of the present invention.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, this hair of Detailed description of the invention is now compareed
Bright specific embodiment, identical label indicates identical component in the various figures.To make simplified form, in each figure only schematically
Ground indicates part relevant to invention, they do not represent its practical structures as product.
As shown in Figure 1, 2, the present invention includes regeneration tank 1, and the top of regeneration tank 1 is equipped with gas trap 2, gas trap
2 top outlet pass sequentially through the first air-introduced machine 3, the shell side of heat exchanger 4, threeway 5 and the second preheater 7 tube side and combustion furnace
8 are connected, and the exhanst gas outlet of combustion furnace 8 passes sequentially through superheater 9, waste heat boiler 10, the shell side of the second preheater 7, the first preheating
The shell side of device 6, the tube side of heat exchanger 4, the second air-introduced machine 11 and water dust scrubber 12 are connected with chimney 13；First preheater 6
Tube side import is connected with atmosphere duct 14, and the third end of the tube side outlet threeway 5 of the first preheater 6 is connected, the air pipe
Air blower 15 is provided on road 14.The gas trap 2 is inverted funnel-shaped structure, the bottom of inverted funnel-shaped structure
Heavy caliber part be collection chamber 18, the top of inverted funnel-shaped structure it is small-bore be variable diameter room 19, the bottom of collection chamber 18 with
The top of regeneration tank 1 is connected, and the bottom of variable diameter room 19 is equipped with demister 20, and the top of variable diameter room 19 is equipped with gas trapping equipment 21, institute
The gas trapping equipment 21 stated is connected by pipeline with the first air-introduced machine 3.Between first air-introduced machine 3 and the shell side of heat exchanger 4
It is successively arranged first check-valve 16 and first flowmeter 17.Between the shell side of first preheater 6 and the tube side of heat exchanger 4
It is successively arranged second check-valve 22 and second flowmeter 23.
A kind of recoverying and utilizing method of synthesis ammonia system desulfurization regeneration release gas recycle device, includes the following steps:
Step 1: the desulfurization regeneration in regeneration tank 1 discharges the gas work common by gas trap 2 and the first air-introduced machine 3
With in the lower shell side into heat exchanger 4, desulfurization regeneration discharge gas in shell side with temperature in 4 tube side of heat exchanger are as follows: 160 DEG C of burnings
Kiln gas exchanges heat, and the desulfurization regeneration release gas after heat exchange is warming up to 100 DEG C；The composition that desulfurization regeneration discharges gas is an oxidation
Carbon, methane and hydrogen sulfide；
Step 2: the desulfurization regeneration release gas after heat exchange described in step 1 by threeway 5 and passes through the first preheater 6
Tube side heat exchange after temperature are as follows: 140 DEG C of air is mixed, mixed gas by the tube side of the second preheater 7 into
It is combustion-supporting to enter progress in combustion furnace 8 after row heat exchange；Temperature after the tube side that the mixed gas passes through the second preheater 7
Are as follows: 290 DEG C；
Step 3: the flue gas after the burning of combustion furnace 8 is 800~900 DEG C, and flue gas is through superheater 9 and waste heat boiler 10
Temperature afterwards are as follows: 360 DEG C, the temperature after the shell side heat exchange that 360 DEG C of flue gas passes through the second preheater 7 are as follows: 200 DEG C, temperature is
Temperature after the shell side heat exchange that 200 DEG C of flue gas passes through the first preheater 6 are as follows: 160 DEG C；
Step 4: temperature described in step 3 is temperature after 160 DEG C of flue gas is exchanged heat by the tube side of heat exchanger 4
Are as follows: 120 DEG C, the flue gas that temperature is 120 DEG C is discharged into atmosphere by the second air-introduced machine 11, water dust scrubber 12 and chimney 13.
For the more detailed explanation present invention, the present invention is further elaborated now in conjunction with embodiment.Specific embodiment
It is as follows:
Embodiment one
A kind of recoverying and utilizing method of synthesis ammonia system desulfurization regeneration release gas recycle device, includes the following steps:
Step 1: the desulfurization regeneration in regeneration tank 1 discharges the gas work common by gas trap 2 and the first air-introduced machine 3
With in the lower shell side into heat exchanger 4, desulfurization regeneration discharge gas in shell side with temperature in 4 tube side of heat exchanger are as follows: 160 DEG C of burnings
Kiln gas exchanges heat, and the desulfurization regeneration release gas after heat exchange is warming up to 100 DEG C；The composition that desulfurization regeneration discharges gas is an oxidation
Carbon, methane and hydrogen sulfide；
Step 2: the desulfurization regeneration release gas after heat exchange described in step 1 by threeway 5 and passes through the first preheater 6
Tube side heat exchange after temperature are as follows: 140 DEG C of air is mixed, mixed gas by the tube side of the second preheater 7 into
It is combustion-supporting to enter progress in combustion furnace 8 after row heat exchange；Temperature after the tube side that the mixed gas passes through the second preheater 7
Are as follows: 290 DEG C；
Step 3: the flue gas after the burning of combustion furnace 8 is 800 DEG C, temperature of the flue gas after superheater 9 and waste heat boiler 10
Degree are as follows: 360 DEG C, the temperature after the shell side heat exchange that 360 DEG C of flue gas passes through the second preheater 7 are as follows: 200 DEG C, temperature is 200 DEG C
Temperature after the shell side heat exchange that flue gas passes through the first preheater 6 are as follows: 160 DEG C；
Step 4: temperature described in step 3 is temperature after 160 DEG C of flue gas is exchanged heat by the tube side of heat exchanger 4
Are as follows: 120 DEG C, the flue gas that temperature is 120 DEG C is discharged into atmosphere by the second air-introduced machine 11, water dust scrubber 12 and chimney 13.
Embodiment two
A kind of recoverying and utilizing method of synthesis ammonia system desulfurization regeneration release gas recycle device, includes the following steps:
Step 1: the desulfurization regeneration in regeneration tank 1 discharges the gas work common by gas trap 2 and the first air-introduced machine 3
With in the lower shell side into heat exchanger 4, desulfurization regeneration discharge gas in shell side with temperature in 4 tube side of heat exchanger are as follows: 160 DEG C of burnings
Kiln gas exchanges heat, and the desulfurization regeneration release gas after heat exchange is warming up to 100 DEG C；The composition that desulfurization regeneration discharges gas is an oxidation
Carbon, methane and hydrogen sulfide；
Step 2: the desulfurization regeneration release gas after heat exchange described in step 1 by threeway 5 and passes through the first preheater 6
Tube side heat exchange after temperature are as follows: 140 DEG C of air is mixed, mixed gas by the tube side of the second preheater 7 into
It is combustion-supporting to enter progress in combustion furnace 8 after row heat exchange；Temperature after the tube side that the mixed gas passes through the second preheater 7
Are as follows: 290 DEG C；
Step 3: the flue gas after the burning of combustion furnace 8 is 850 DEG C, temperature of the flue gas after superheater 9 and waste heat boiler 10
Degree are as follows: 360 DEG C, the temperature after the shell side heat exchange that 360 DEG C of flue gas passes through the second preheater 7 are as follows: 200 DEG C, temperature is 200 DEG C
Temperature after the shell side heat exchange that flue gas passes through the first preheater 6 are as follows: 160 DEG C；
Step 4: temperature described in step 3 is temperature after 160 DEG C of flue gas is exchanged heat by the tube side of heat exchanger 4
Are as follows: 120 DEG C, the flue gas that temperature is 120 DEG C is discharged into atmosphere by the second air-introduced machine 11, water dust scrubber 12 and chimney 13.
Embodiment three
A kind of recoverying and utilizing method of synthesis ammonia system desulfurization regeneration release gas recycle device, includes the following steps:
Step 1: the desulfurization regeneration in regeneration tank 1 discharges the gas work common by gas trap 2 and the first air-introduced machine 3
With in the lower shell side into heat exchanger 4, desulfurization regeneration discharge gas in shell side with temperature in 4 tube side of heat exchanger are as follows: 160 DEG C of burnings
Kiln gas exchanges heat, and the desulfurization regeneration release gas after heat exchange is warming up to 100 DEG C；The composition that desulfurization regeneration discharges gas is an oxidation
Carbon, methane and hydrogen sulfide；
Step 2: the desulfurization regeneration release gas after heat exchange described in step 1 by threeway 5 and passes through the first preheater 6
Tube side heat exchange after temperature are as follows: 140 DEG C of air is mixed, mixed gas by the tube side of the second preheater 7 into
It is combustion-supporting to enter progress in combustion furnace 8 after row heat exchange；Temperature after the tube side that the mixed gas passes through the second preheater 7
Are as follows: 290 DEG C；
Step 3: the flue gas after the burning of combustion furnace 8 is 900 DEG C, temperature of the flue gas after superheater 9 and waste heat boiler 10
Degree are as follows: 360 DEG C, the temperature after the shell side heat exchange that 360 DEG C of flue gas passes through the second preheater 7 are as follows: 200 DEG C, temperature is 200 DEG C
Temperature after the shell side heat exchange that flue gas passes through the first preheater 6 are as follows: 160 DEG C；
Step 4: temperature described in step 3 is temperature after 160 DEG C of flue gas is exchanged heat by the tube side of heat exchanger 4
Are as follows: 120 DEG C, the flue gas that temperature is 120 DEG C is discharged into atmosphere by the second air-introduced machine 11, water dust scrubber 12 and chimney 13.
Gas trap of the invention mainly uses inverted funnel-shaped structure, mainly includes collection chamber 18, demister
20, variable diameter room 19, have the gas trapping equipment 21 of baffle plate, the gas that actified solution overflows to collection chamber 18 is through the removing water of demister 20
Stack effect, which is formed, by variable diameter room 19 after vapour reaches the progress gas capture of gas trapping equipment 21.Lower layer's trapping utilizes 19 shape of variable diameter room
At the local decompression's effect that generates of stack effect and upper layer machinery air inducing, can increase the dynamic pressure energy of gas, reduce air inducing resistance
Power achieved the purpose that guide dead angle fraction to linear movement, reduces wind-force and shuts off the energy loss of phenomenon, reduces conveying
Energy consumption；The gas overflowing not trapped can be prevented and treated by the baffle plate being arranged on gas trapping equipment 21, gas is caught completely
Collection.The present invention is exchanged heat using chimney high-temperature flue gas and desulfurization regeneration release gas, the gas temperature into stokehold is increased, to improve
The calorific value of combustion-supporting gas improves the burning efficiency of furnace.After being collected by gas trap, preheated in heat exchanger 4 with out first
6 combustion furnace high-temperature flue gas of device exchanges heat, and the air of desulfurization regeneration release gas and the first preheater 6 out after heat exchange is mixed
It closes, carries out secondary heat exchange into the second preheater 7 and the burning kiln gas of medium temperature, the gaseous mixture of the second preheater 7 enters combustion out
It burns furnace 8 to burn, the flue gas and superheater 9, waste heat boiler 10, the second preheater 7, the first preheater 6, heat exchanger 4 of generation
Stage-by-stage heat exchange is carried out, heat exchange efficiency can be effectively improved, the flue gas after heat exchange is sent through the second air-introduced machine 11 to water dust scrubber 12
Environmental protection treatment is carried out, is most discharged into atmosphere through chimney 13 afterwards, avoids release gas from being directly discharged into atmosphere and causes to subtract while environmental issue
The waste of few efficient resource.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " setting ", " peace
Dress " etc. shall be understood in a broad sense, for example, it may be being fixedly connected, is integrally connected, may be a detachable connection；It can also be with
It is the connection inside two elements；It can be directly connected, it can also indirectly connected through an intermediary, for the general of this field
For logical technical staff, the specific meanings of the above terms in the present invention can be understood according to specific conditions.It is above specifically
Bright illustrating only for feasible embodiment of the invention, the protection model that they are not intended to limit the invention
It encloses, it is all to should be included in protection of the invention without departing from equivalent implementations, change made by technical spirit of the present invention and transformation
Within the scope of.
Claims (5)
1. a kind of synthesis ammonia system desulfurization regeneration discharges gas recycle device, including regeneration tank (1), it is characterised in that: regeneration
The top of slot (1) is equipped with gas trap (2), and the outlet at the top of gas trap (2) passes sequentially through the first air-introduced machine (3), changes
The tube side of the shell side of hot device (4), threeway (5) and the second preheater (7) is connected with combustion furnace (8), the exhanst gas outlet of combustion furnace (8)
Pass sequentially through shell side, the heat exchanger of superheater (9), waste heat boiler (10), the shell side of the second preheater (7), the first preheater (6)
(4) tube side, the second air-introduced machine (11) and water dust scrubber (12) is connected with chimney (13)；The tube side of first preheater (6) into
Mouth is connected with atmosphere duct (14), and the third end of tube side outlet threeway (5) of the first preheater (6) is connected, the air pipe
Air blower (15) are provided on road (14).
2. synthesis ammonia system desulfurization regeneration according to claim 1 discharges gas recycle device, it is characterised in that: described
Gas trap (2) is inverted funnel-shaped structure, and the bottom heavy caliber part of inverted funnel-shaped structure is collection chamber (18),
The small-bore top of inverted funnel-shaped structure is variable diameter room (19), the bottom of collection chamber (18) and the top phase of regeneration tank (1)
Even, the bottom of variable diameter room (19) is equipped with demister (20), and the top of variable diameter room (19) is equipped with gas trapping equipment (21), and described catches gas
Device (21) is connected by pipeline with the first air-introduced machine (3).
3. synthesis ammonia system desulfurization regeneration according to claim 1 discharges gas recycle device, it is characterised in that: described
The first air-introduced machine (3) and heat exchanger (4) shell side between be successively arranged first check-valve (16) and first flowmeter (17).
4. synthesis ammonia system desulfurization regeneration according to claim 1 discharges gas recycle device, it is characterised in that: described
The shell side of the first preheater (6) and the tube side of heat exchanger (4) between be successively arranged second check-valve (22) and second flowmeter
(23)。
5. a kind of recycling side of synthesis ammonia system desulfurization regeneration release gas recycle device according to claim 1
Method, characterized by the following steps:
Step 1: desulfurization regeneration release gas in regeneration tank (1) by gas trap (2) and the first air-introduced machine (3) jointly
Effect is lower into the shell side of heat exchanger (4), desulfurization regeneration discharge gas in shell side with temperature in heat exchanger (4) tube side are as follows: 160
DEG C burning kiln gas exchanges heat, and desulfurization regeneration after heat exchange release gas is warming up to 100 DEG C；Desulfurization regeneration release gas composition be
Carbon monoxide, methane and hydrogen sulfide；
Step 2: the desulfurization regeneration release gas after heat exchange described in step 1 by threeway (5) and passes through the first preheater (6)
Tube side heat exchange after temperature are as follows: 140 DEG C of air is mixed, and mixed gas passes through the tube side of the second preheater (7)
It is combustion-supporting to enter progress in combustion furnace (8) after being exchanged heat；After the tube side that the mixed gas passes through the second preheater (7)
Temperature are as follows: 290 DEG C；
Step 3: the flue gas after combustion furnace (8) burning is 800~900 DEG C, and flue gas is through superheater (9) and waste heat boiler
(10) temperature after are as follows: 360 DEG C, the temperature after the shell side heat exchange that 360 DEG C of flue gas passes through the second preheater (7) are as follows: 200 DEG C,
Temperature after the shell side heat exchange that the flue gas that temperature is 200 DEG C passes through the first preheater (6) are as follows: 160 DEG C；
Step 4: temperature described in step 3 is temperature after 160 DEG C of flue gas is exchanged heat by the tube side of heat exchanger (4)
Are as follows: 120 DEG C, the flue gas that temperature is 120 DEG C is discharged into greatly by the second air-introduced machine (11), water dust scrubber (12) and chimney (13)
Gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610819951.0A CN106247369B (en) | 2016-08-29 | 2016-08-29 | Synthesis ammonia system desulfurization regeneration discharges gas recycle device and recoverying and utilizing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610819951.0A CN106247369B (en) | 2016-08-29 | 2016-08-29 | Synthesis ammonia system desulfurization regeneration discharges gas recycle device and recoverying and utilizing method |
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| Publication Number | Publication Date |
|---|---|
| CN106247369A CN106247369A (en) | 2016-12-21 |
| CN106247369B true CN106247369B (en) | 2018-12-28 |
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ID=57598963
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| CN108844054A (en) * | 2018-07-30 | 2018-11-20 | 河南心连心化肥有限公司 | A kind of synthesis ammonia system heat reclaim unit and heat recovery technique |
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| US3947551A (en) * | 1974-05-29 | 1976-03-30 | The Benfield Corporation | Ammonia synthesis |
| CN1135458A (en) * | 1996-03-08 | 1996-11-13 | 林美莉 | Method for recovering heat in production of synthesized ammoia |
| CN1456504A (en) * | 2003-05-09 | 2003-11-19 | 湖北宜化化工股份有限公司 | Wast heat recovering and utilizing method for ammonia synthesis |
| CN101050388A (en) * | 2006-04-07 | 2007-10-10 | 山东华鲁恒升化工股份有限公司 | Air gas recovery system of gasometer stove, and new technique of using the system |
| CN206018678U (en) * | 2016-08-29 | 2017-03-15 | 河南心连心化肥有限公司 | Synthesis ammonia system desulfurization regeneration discharges gas recycle device |
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2016
- 2016-08-29 CN CN201610819951.0A patent/CN106247369B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3947551A (en) * | 1974-05-29 | 1976-03-30 | The Benfield Corporation | Ammonia synthesis |
| CN1135458A (en) * | 1996-03-08 | 1996-11-13 | 林美莉 | Method for recovering heat in production of synthesized ammoia |
| CN1456504A (en) * | 2003-05-09 | 2003-11-19 | 湖北宜化化工股份有限公司 | Wast heat recovering and utilizing method for ammonia synthesis |
| CN101050388A (en) * | 2006-04-07 | 2007-10-10 | 山东华鲁恒升化工股份有限公司 | Air gas recovery system of gasometer stove, and new technique of using the system |
| CN206018678U (en) * | 2016-08-29 | 2017-03-15 | 河南心连心化肥有限公司 | Synthesis ammonia system desulfurization regeneration discharges gas recycle device |
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