CN209485081U - A kind of waste heat recycling utilization system - Google Patents
A kind of waste heat recycling utilization system Download PDFInfo
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- CN209485081U CN209485081U CN201822169107.5U CN201822169107U CN209485081U CN 209485081 U CN209485081 U CN 209485081U CN 201822169107 U CN201822169107 U CN 201822169107U CN 209485081 U CN209485081 U CN 209485081U
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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
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Abstract
The utility model discloses a kind of waste heats to recycle utilization system, including the high medium temperature residual neat recovering system being connect with the desalted water pipeline from pipe network and low temperature exhaust heat recovery system, hot steam pipe network is pressed through in being connected on the steam (vapor) outlet of high medium temperature residual neat recovering system, in press through live steam pipe and be connected with electricity generation system I and blower turbine system on the net, low-pressure superheated steam pipe network is respectively connected on the steam (vapor) outlet of electricity generation system I and blower turbine system, low-pressure steam superheater tube is connected with electricity generation system II on the net, condenser is connected on the steam (vapor) outlet of electricity generation system II, condenser is passed into oxygen-eliminating device by condensate pump, low-pressure saturated steam pipe network is connected on the steam (vapor) outlet of low temperature exhaust heat recovery system, low-pressure saturated steam pipe network is passed through the use of heat user heat supply user.The utility model utilizes the low temperature position waste heat of low temperature exhaust heat recovery system recycling sulfuric acid apparatus dry absorption section using high, the middle potential temperature waste heat in high medium temperature residual neat recovering system recycling sulfuric acid apparatus.
Description
Technical field
The utility model relates to a kind of waste heats to recycle utilization system, the waste heat in especially a kind of sulphur-burning sulphuric acid plant
Recovery system belongs to heat recovery technology field.
Background technique
Energy saving the problem of having become world today's people's general concern, with industrial development, energy consumption
Also increasingly increase, rationally recycling and be the essential condition developed production using the energy, and improve Project Economy Benefit it is specific
Guarantee.With the construction in Chinese large-sized phosphorus compound fertilizer base, matched sulfuric acid apparatus scale is increasing.Rationally recycle sulphur
The high, medium and low potential temperature waste heat generated in sulphuric acid plant production, the UTILIZATION OF VESIDUAL HEAT IN for improving entire sulfuric acid apparatus is horizontal, looks forward to sulfuric acid
Industry can provide more energy for society, improve the overall economic efficiency of enterprise while producing sulfuric acid.
Acid production with sulphur production mainly includes three sulfur burning, the oxidation of sulfur dioxide and the absorption of sulfur trioxide mistakes
Journey, these processes can release a large amount of chemical energy.The reaction heat of these three processes accounts for sulphur-burning sulphuric acid plant overall reaction respectively
56%, 19% and 25% or so of heat.It is technologically advanced to have become measurement sulfur process for the recovery utilization rate of waste heat in sulfuric acid apparatus production
Sulfuric acid production plant is considered as and does not discharge the green energy resource factory of carbon dioxide and have become one kind and become by one important indicator of property
Gesture.Rationally recycle the height in acid production with sulphur production process, neutralization low temperature position waste heat has very important significance.Existing skill
Art lack it is a kind of can in the production of high efficiente callback acid production with sulphur waste heat system, UTILIZATION OF VESIDUAL HEAT IN level is low, causes to waste.
Summary of the invention
The purpose of this utility model is to provide it is a kind of can height in maximized Recovered sulphur sulphuric acid plant, in and low temperature
The waste heat of position waste heat recycles utilization system.
The utility model adopts the following technical solution: a kind of waste heat recycles utilization system comprising with come from pipe network
The connection of desalted water pipeline high medium temperature residual neat recovering system and low temperature exhaust heat recovery system, desalted water is after oxygen-eliminating device deoxygenation point
High medium temperature residual neat recovering system and low temperature exhaust heat recovery system are not entered by Medium pressure boiler feeding water pump and low-pressure boiler feed pump
In, be connected on the steam (vapor) outlet of Gao Zhongwen residual neat recovering system in press through hot steam pipe network, in press through live steam pipe and connect on the net
It is connected to electricity generation system I and blower turbine system, is respectively connected on the steam (vapor) outlet of electricity generation system I and blower turbine system low
Hot steam pipe network is pressed through, electricity generation system II is connected on low-pressure superheated steam pipe network, is connected on the steam (vapor) outlet of electricity generation system II
There is condenser, condenser is passed into oxygen-eliminating device by condensate pump, is connected on the steam (vapor) outlet of the low temperature exhaust heat recovery system
It is connected to low-pressure saturated steam pipe network, low-pressure saturated steam pipe network is passed through the use of heat user heat supply user.
The oxygen-eliminating device is connected on desalted water pipeline, and desalted water is passed into oxygen-eliminating device, medium pressure boiler feed pump
The water outlet of oxygen-eliminating device is connected to low-pressure boiler feed pump, the condensate pump is connected to the water inlet of oxygen-eliminating device.
The deoxygenation steam pipe road being passed into oxygen-eliminating device is also connected on the low-pressure saturated steam pipe network.
Boiler feed pump turbine is connected on the low-pressure superheated steam pipe network, the outlet of boiler feed pump turbine passes through pipe
Road is connect with oxygen-eliminating device.
Reducing-and-cooling plant I is also connected between medium pressure superheated steam pipe network and low-pressure superheated steam pipe network.
Reducing-and-cooling plant II is connected between the low-pressure superheated steam pipe network and the steam (vapor) outlet of electricity generation system II.
Attemperator is connected between the low-pressure superheated steam pipe network and low-pressure saturated steam pipe network.
The high medium temperature residual neat recovering system includes waste heat boiler, low temperature superheater, high temperature superheater, economizer I, saves coal
Device II, the water supply of medium pressure boiler feed pump and economizer I, economizer II enter in the drum of waste heat boiler after exchanging heat, and give up
Heat boiler and sulphur-burning sulphuric acid plant sulfur furnace outlet furnace gas heat exchange after, waste heat boiler drum generate saturated vapor successively with low temperature
Hot steam pipe network is pressed through in being passed through after superheater, high temperature superheater heat exchange.
The economizer I, economizer II are heat pipe economizer, and economizer I has two-stage heat exchanger.
The low temperature exhaust heat recovery system includes steam generator, the pot for the flue gas heat exchange being successively discharged with high temperature absorption tower
Furnace feed-water heater and desalination water heater, the water inlet of the desalination water heater connect with the desalted water pipeline from pipe network
It connects, the outlet of the low-pressure boiler feed pump and the water inlet of boiler water-suppling heater connect, the boiler water-suppling heater
Water outlet is passed through in steam generator, and the steam (vapor) outlet of steam generator is connect with low-pressure saturated steam pipe network.
The beneficial effects of the utility model are: the utility model is using in high medium temperature residual neat recovering system recycling sulfuric acid apparatus
High, middle potential temperature waste heat, utilize low temperature exhaust heat recovery system recycling sulfuric acid apparatus dry absorption section low temperature position waste heat, entire waste heat
The operational process of recovery system are as follows: the desalted water from pipe network divides two-way after oxygen-eliminating device deoxygenation, all the way through medium-pressure boiler water supply
It is pumped into high medium temperature residual neat recovering system, Medium pressure boiler feeding water pump is driven by boiler feed pump turbine, and another way is through low-pressure boiler
Water supply is pumped into low temperature exhaust heat recovery system.The whole system of the utility model be provided with triple tube net: in press through live steam pipe
Net, low-pressure superheated steam pipe network and low-pressure saturated steam pipe network, in press through live steam pipe and be provided with back pressure turbine, drum on the net
Fan turbine and reducing-and-cooling plant I, reducing-and-cooling plant I as spare, back pressure turbine and blower turbine steam discharge into
Enter low-pressure superheated steam pipe network, is provided with condensing turbine, boiler feed pump turbine, desuperheat on low-pressure superheated steam pipe network and subtracts
Pressure device II and attemperator, the conduct of reducing-and-cooling plant II is spare, and condensing turbine steam discharge enters condenser, through recirculated water cooling
But feeding oxygen-eliminating device is got by condensate pump after, boiler feed pump turbine steam discharge is for oxygen-eliminating device deoxygenation, low-pressure superheated steam pipe
Net excess steam is after attemperator desuperheat and low temperature exhaust heat recovery system institute producing steam is sent into low-pressure saturated steam pipe network, for each
Heat user uses.The utility model is used using high, the middle potential temperature waste heat in waste heat boiler recycling sulfuric acid apparatus, output middle pressure steam
In steam turbine power generation and blower turbine, heat supply, power generation and driving boiler feed pump are removed again using the steam for having done function, it is real
Existing heat, electric Joint Production；The utility model recycles the low temperature position waste heat of sulfuric acid apparatus dry absorption section, generates low-pressure steam for technique
Each device uses, and generates good economic benefit and social benefit to enterprise.
The utility model comprehensively utilizes height, medium temperature waste heat in sulphur-burning sulphuric acid plant production, produces middle pressure steam to drive
Blower turbine and steam turbine power generation go condensing turbine power generation, driving using blower turbine and middle-pressure steam turbine steam discharge
Medium pressure boiler feeding water pump and heat supply user use, and using low temperature exhaust heat, production low-pressure saturated steam direct heating user is used,
Sufficiently recycling utilizes thermal energy with reasonable, realizes the comprehensive utilization effect of the waste heat energy.Reduce simultaneously and is supplied using coal-burning boiler
Vapour causes great amount of carbon dioxide to be discharged, and reduces greenhouse effects, can also reduce flue dust, SOx、NOxExhaust emission.Residual heat integrative returns
It receives using the Industry Development Policy for meeting country, there is significant economic benefit, energy-saving benefit and environmental benefit.By comprehensive step by step
Conjunction is generated electricity using remaining thermogenetic steam, drives pump and heat supply, is had the characteristics that energy-saving and environmental protection, is reduced production cost,
Improve the economic benefit and social benefit of enterprise.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of the waste heat recycling utilization system of embodiment of the utility model.
Fig. 2 is the schematic diagram of high medium temperature residual neat recovering system in Fig. 1.
Fig. 3 is the schematic diagram of Fig. 1 Low and mid temperature heat recovery system.
In figure: 1 oxygen-eliminating device, 2 Medium pressure boiler feeding water pumps, 3 boiler feed pump turbines, 4 low-pressure boiler feed pumps, 5 high medium temperatures
Residual neat recovering system, 5-1 economizer I, 5-2 economizer II, 5-3 waste heat boiler, 5-4 low temperature superheater, 5-5 high temperature superheater,
5-6 direct-contact desuperheater, 6 low temperature exhaust heat recovery systems, 6-1 desalination water heater, 6-2 boiler water-suppling heater, 6-3 steam generation
Device, 7 back pressure turbines, 8 generators I, 9 blower turbines, 10 air blowers, 11 reducing-and-cooling plants I, 12 condensing-type steamers
Machine, 13 generators II, 14 condensers, 15 condensate pumps, 16 reducing-and-cooling plants II, 17 attemperators, 18 heat users press through in S1
Hot steam pipe network, S2 low-pressure superheated steam pipe network, S3 low-pressure saturated steam pipe network.
Specific embodiment
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
A kind of embodiment of the utility model waste heat recycling utilization system it is as shown in Figure 1 to Figure 3, the present embodiment it is remaining
Recuperation of heat utilization system includes more than the high medium temperature residual neat recovering system 5 and low temperature that connect with the desalted water pipeline from pipe network
Heat recovery system 6, desalted water are entered by Medium pressure boiler feeding water pump 2 and low-pressure boiler feed pump 4 respectively after 1 deoxygenation of oxygen-eliminating device
In high medium temperature residual neat recovering system 5 and low temperature exhaust heat recovery system 6, connected on the steam (vapor) outlet of Gao Zhongwen residual neat recovering system 5
Hot steam pipe network S1 is pressed through in having, in press through and be connected with electricity generation system I and blower turbine system on hot steam pipe network S1, generate electricity
System I includes back pressure turbine 7 and generator I 8, and blower turbine system includes blower turbine 9 and air blower 10, power generation
Low-pressure superheated steam pipe network S2, low-pressure superheated steam pipe network are respectively connected on the steam (vapor) outlet of system I and blower turbine system
Electricity generation system II is connected on S2, electricity generation system II includes condensing turbine 12 and generator II 13, the steaming of electricity generation system II
Condenser 14 is connected on vapor outlet, condenser 14 is passed into oxygen-eliminating device by condensate pump 15, the low temperature exhaust heat recycling
Low-pressure saturated steam pipe network S3 is connected on the steam (vapor) outlet of system 6, low-pressure saturated steam pipe network S3 is passed through 18 heat supply of heat user
User 18 uses.
Oxygen-eliminating device 1 is connected on the desalted water pipeline, desalted water is passed into oxygen-eliminating device 1, medium pressure boiler feedwater
Pump 2 and low-pressure boiler feed pump 4 are connected to the water outlet of oxygen-eliminating device 1, and the condensate pump 15 is connected to the water inlet of oxygen-eliminating device 1
At mouthful.The deoxygenation steam pipe road being passed into oxygen-eliminating device 1 is also connected on the low-pressure saturated steam pipe network S3.The low pressure mistake
Boiler feed pump turbine 3 is connected on hot steam pipe network S3, the outlet of boiler feed pump turbine 3 is connected by pipeline and oxygen-eliminating device 1
It connects.
Reducing-and-cooling plant I is also connected between medium pressure superheated steam pipe network S1 and low-pressure superheated steam pipe network S2
11.Reducing-and-cooling plant II 16 is connected between the low-pressure superheated steam pipe network S2 and the steam (vapor) outlet of electricity generation system II.Institute
It states and is connected with attemperator 17 between low-pressure superheated steam pipe network S2 and low-pressure saturated steam pipe network S3.
The high medium temperature residual neat recovering system includes waste heat boiler 5-3, low temperature superheater 5-4, high temperature superheater 5-5, saves
After I 5-1 of coal device, II 5-2 of economizer, the water supply of medium pressure boiler feed pump 2 and I 5-1 of economizer, II 5-2 of economizer heat exchange
Into in the drum of waste heat boiler 5-3, after waste heat boiler 5-3 exchanges heat with sulphur-burning sulphuric acid plant sulfur furnace outlet furnace gas, waste heat boiler
The saturated vapor that furnace 5-3 drum generates successively presses through hot steaming with being passed through after low temperature superheater 5-4, high temperature superheater 5-5 heat exchange
Steam pipe net S1.I 5-1 of economizer, II 5-2 of economizer are heat pipe economizer, and I 5-1 of economizer has two-stage heat exchanger.Institute
It states and is connected with direct-contact desuperheater 5-6 on high temperature superheater.
The low temperature exhaust heat recovery system 6 includes steam generator 6-3, the pot for the flue gas heat exchange being successively discharged with absorption tower
The water inlet of furnace feed-water heater 6-2 and desalination water heater 6-1, the desalination water heater 6-1 and the desalination from pipe network
Waterpipe connection, the water outlet of the desalination water heater 6-1 are connect with oxygen-eliminating device 1, the outlet of the low-pressure boiler feed pump 4
It is connect with the water inlet of boiler water-suppling heater 6-2, the water outlet of the boiler water-suppling heater 6-2 is passed through steam generator 6-
In 3, the steam (vapor) outlet of steam generator 6-3 is connect with low-pressure saturated steam pipe S3.
As shown in Figure 1, the desalted water from pipe network enters oxygen-eliminating device 1 after desalination water heater 6-1 heat exchange heating.Through removing
104 DEG C of deoxygenation moisture two-way of oxygen qualification, water supply gets through Medium pressure boiler feeding water pump 2 and is sent into high medium temperature residual neat recovering system all the way
5, another way water supply gets through low-pressure boiler feed pump 4 and is sent into low temperature exhaust heat recovery system 6.The waste heat of the present embodiment recycles synthesis
Using system be provided with three-level steam pipe network: in press through hot steam pipe network S1, low-pressure superheated steam pipe network S2 and low pressure saturation steam
5 producing steams of steam pipe net S3, Gao Zhongwen residual neat recovering system press through hot steam pipe network S1 in entering, in press through hot steam pipe network S1
Hot steam is pressed through in last point and enters the power generation of 7 driven generator 8 of back pressure turbine, and another part enters blower turbine 9
If encountering back pressure turbine failure, for the reliability for guaranteeing junior's pipe network steam supply, spare desuperheat is arranged in blower 10
Decompressor I 11 presses through hot steam by and is sent into low-pressure superheated steam pipe network S2 after pressure and temperature reducing.Back pressure turbine 7 and drum
9 steam discharge of fan turbine enters low-pressure superheated steam pipe network S2, last point of low-pressure superheated steam of low-pressure superheated steam pipe network S2 into
Enter the power generation of 12 driven generator 13 of condensing turbine, 12 steam discharge of condensing turbine enters condenser 14, through circulating water
It is got afterwards by condensate pump 15 and is sent into oxygen-eliminating device 1, another part low-pressure superheated steam, which enters in the driving of boiler feed pump turbine 3, presses
Boiler feed pump 2,3 steam discharge of boiler feed pump turbine are sent into oxygen-eliminating device 1, supplement deoxygenation steam, in order to prevent condensing-type steamer
The discharge of extra low-pressure steam when breaking down of machine 12, is provided with spare reducing-and-cooling plant II 16, low-pressure superheated steam is passed through
It is sent into condenser 14 after pressure and temperature reducing to be recycled, low-pressure superheated steam pipe network S2 excess steam is after 17 desuperheat of attemperator
It is sent into low-pressure saturated steam pipe network S3,6 producing steams of low temperature exhaust heat recovery system enter low-pressure saturated steam pipe network S3, and low pressure is full
It is directly used for each heat user 18 with the steam of steam pipe network S3.
As shown in Figure 2: the high medium temperature residual neat recovering system 5 of the present embodiment includes I 5-1 of economizer, II 5-2 of economizer, gives up
Heat boiler 5-3, low temperature superheater 5-4, high temperature superheater 5-5 are determined useless in sulfur furnace outlet setting one through heat Balance Calculation
Heat boiler 5-3 presses saturated vapor in production, a high temperature superheater 5-5 is arranged in converter one section outlet, at four sections of converter
Setting one low temperature superheater 5-4 and economizer I5-1 in outlet is arranged an economizer II5-2 in three sections of outlets of converter, returns
It receives height, the medium temperature waste heat of sulfuric acid apparatus, by-product 3.82MPa, presses through hot steam in 450 DEG C and send and press through hot steam pipe network S1 into.
It is required according to sulfur process, after sulphur-burning sulphuric acid plant sulfur furnace outlet furnace gas exchanges heat in waste heat boiler, temperature is by~1000 DEG C
~425 DEG C are cooled to, goes one section of converter；Converter one section outlet furnace gas is after high temperature superheater heat exchange, and temperature is by~612 DEG C
~440 DEG C are cooled to, goes two sections of converter；Four sections of outlet furnace gases of converter are after low temperature superheater, economizer I exchange heat, temperature
~155 DEG C are cooled to by~402 DEG C, then removes second absorption tower；Three sections of outlet furnace gases of converter are after the heat exchange of economizer I, temperature
Degree is cooled to~175 DEG C by~285 DEG C.
The low-temperature level of the economizer I 5-1 of sulfuric acid apparatus is sent into boiler feedwater through Medium pressure boiler feeding water pump 2, laggard through exchanging heat
Enter heat pipe economizer II5-2, then be returned to the high-temperature level of heat pipe economizer I5-1 after exchanging heat, is finally sent into waste heat boiler 5-3
Drum, the furnace water of drum enters in pan shell type evaporator through down-comer, after the heat exchange of pan shell type heat exchange pipe of evaporator, furnace water portion
Divide evaporation, steam water interface enters in drum through tedge, and through two-stage steam-water separation in drum, saturated vapor is at the top of drum
Export, the furnace water under separating enter back into down-comer and continue to recycle.Drum exports saturated vapor and is sent into cryogenic overheating through pipeline
Device 5-4 is re-fed into high temperature superheater 5-5 after steam is heated, to guarantee 450 DEG C of superheated steam outlet temperature, in hyperthermia and superheating
Direct-contact desuperheater 5-6, adjust automatically superheated steam outlet temperature are equipped between device 5-5 two-stage.After high temperature superheater 5-5 heat exchange
3.82 MPa of by-product, 450 DEG C of superheated steams are sent through main steam line presses through hot steam pipe network S1 into.
As shown in Figure 3: the low temperature exhaust heat recovery system 6 of the present embodiment includes desalination water heater 6-1, boiler feedwater heating
Device 6-2, steam generator 6-3.Sulfuric acid concentration from sulfuric acid apparatus high temperature absorption tower is about 99.5%, about 200 DEG C of temperature, is sent into
Steam generator 6-3 exchanges heat, while sour temperature drop, as low as about 190 DEG C, steam generator outlet has part high-temperature concentrated sulfuric acid warp
The dry absorption tower circulating slot of sulfate system is sealed in after boiler water-suppling heater 6-2 and desalination water heater 6-1 recycling heat.Boiler is given
Water is sent into boiler water-suppling heater 6-2 through low-pressure boiler feed pump 4, steam generator 6-3 is sent into after heated, through steam generation
After the heat exchange of device 6-3 heat exchanger tube, generation~0.8Mpa saturated vapor is sent into low-pressure saturated steam pipe network S3.Desalted water is through desalted water
The desalted water that whole device can be supplemented to oxygen-eliminating device 1, the heat of desalination water heater 6-1 recycling is sent after heater 6-1 heating
Temperature improves 50 DEG C or so, to increase substantially the heat energy recovery rate of sulfuric acid production plant.It is returned by high, medium and low temperature waste heat
Receipts can make the waste heat recovery rate of entire sulphur-burning sulphuric acid plant reach 90% or more.
The residual neat recovering system of the present embodiment can rationally the height in Recovered sulphur sulphuric acid plant, in and low temperature position waste heat, benefit
Steam is generated with waste heat boiler, vapour situation is used according to each device of technique, passes through balance of steam, it then follows electricity determining by heat, thermoelectricity connection
It produces, energy saving principle, reasonably select Turbo-generator Set and drives the pattern of pump turbine, utilized by thermal energy step
Principle maximumlly utilizes waste heat, while the power consumption of whole device is substantially reduced using turbine blower, improves energy benefit
With rate, achieve the effect that energy-saving.
Claims (10)
1. a kind of waste heat recycles utilization system, it is characterised in that: it includes connecting with the desalted water pipeline from pipe network
High medium temperature residual neat recovering system (5) and low temperature exhaust heat recovery system (6), during desalted water passes through respectively after oxygen-eliminating device (1) deoxygenation
Boiler feed pump (2) and low-pressure boiler feed pump (4) are pressed to enter high medium temperature residual neat recovering system (5) and low temperature exhaust heat recovery system
(6) in, be connected on the steam (vapor) outlet of Gao Zhongwen residual neat recovering system (5) in press through hot steam pipe network (S1), in press through hot steaming
It is connected with electricity generation system I and blower turbine system on steam pipe net (S1), the steam of electricity generation system I and blower turbine system goes out
It is respectively connected with low-pressure superheated steam pipe network (S2) on mouthful, electricity generation system II is connected on low-pressure superheated steam pipe network (S2), generated electricity
It is connected on the steam (vapor) outlet of system II condenser (14), condenser (14) is passed into oxygen-eliminating device (1) by condensate pump (15)
In, low-pressure saturated steam pipe network (S3), low-pressure saturated steam are connected on the steam (vapor) outlet of the low temperature exhaust heat recovery system (6)
Pipe network (S3) is passed through the use of heat user (18) heat supply user.
2. waste heat according to claim 1 recycles utilization system, it is characterised in that: the oxygen-eliminating device (1) is connected to
On desalted water pipeline, desalted water is passed into oxygen-eliminating device (1), medium pressure boiler feed pump (2) and low-pressure boiler feed pump (4)
It is connected to the water outlet of oxygen-eliminating device (1), the condensate pump (15) is connected to the water inlet of oxygen-eliminating device (1).
3. waste heat according to claim 2 recycles utilization system, it is characterised in that: the low-pressure saturated steam pipe network
(S3) the deoxygenation steam pipe road being passed into oxygen-eliminating device (1) is also connected on.
4. waste heat according to claim 2 recycles utilization system, it is characterised in that: the low-pressure superheated steam pipe network
(S2) it is connected on boiler feed pump turbine (3), the outlet of boiler feed pump turbine (3) is connect by pipeline with oxygen-eliminating device (1).
5. waste heat according to claim 1 recycles utilization system, it is characterised in that: medium pressure superheated steam pipe network
(S1) reducing-and-cooling plant I (11) is also connected between low-pressure superheated steam pipe network (S2).
6. waste heat according to claim 1 recycles utilization system, it is characterised in that: the low-pressure superheated steam pipe network
(S2) reducing-and-cooling plant II (16) is connected between the steam (vapor) outlet of electricity generation system II.
7. waste heat according to claim 1 recycles utilization system, it is characterised in that: the low-pressure superheated steam pipe network
(S2) it is connected between low-pressure saturated steam pipe network (S3) attemperator (17).
8. waste heat according to claim 1 recycles utilization system, it is characterised in that: the high medium temperature waste heat recycling system
System (5) includes waste heat boiler (5-3), low temperature superheater (5-4), high temperature superheater (5-5), economizer I (5-1), economizer II
Enter waste heat boiler after (5-2), the water supply of medium pressure boiler feed pump (2) and economizer I (5-1), economizer II (5-2) heat exchange
In the drum of furnace (5-3), after waste heat boiler (5-3) and sulphur-burning sulphuric acid plant sulfur furnace outlet furnace gas heat exchange, waste heat boiler (5-3)
The saturated vapor that drum generates successively presses through hot steam with being passed through after low temperature superheater (5-4), high temperature superheater (5-5) heat exchange
Pipe network (S1).
9. waste heat according to claim 8 recycles utilization system, it is characterised in that: the economizer I (5-1) saves
Coal device II (5-2) is heat pipe economizer, and economizer I (5-1) has two-stage heat exchanger.
10. waste heat according to claim 1 recycles utilization system, it is characterised in that: low temperature exhaust heat recycling system
System (6) includes steam generator (6-3), the boiler water-suppling heater (6-2) for the flue gas heat exchange being successively discharged with high temperature absorption tower
And desalination water heater (6-1), the water inlet of the desalination water heater (6-1) are connect with the desalted water pipeline from pipe network,
The outlet of the low-pressure boiler feed pump (4) is connect with the water inlet of boiler water-suppling heater (6-2), the boiler feedwater heating
The water outlet of device (6-2) is passed through in steam generator (6-3), the steam (vapor) outlet and low-pressure saturated steam of steam generator (6-3)
Pipe network (S3) connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822169107.5U CN209485081U (en) | 2018-12-24 | 2018-12-24 | A kind of waste heat recycling utilization system |
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| CN201822169107.5U CN209485081U (en) | 2018-12-24 | 2018-12-24 | A kind of waste heat recycling utilization system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594721A (en) * | 2019-10-28 | 2019-12-20 | 河南心连心化学工业集团股份有限公司 | Recovery device for high-temperature steam condensate and waste heat |
| CN114087045A (en) * | 2021-11-17 | 2022-02-25 | 连云港石化有限公司 | Energy utilization system for steam of ethylene oxide glycol device and use method thereof |
-
2018
- 2018-12-24 CN CN201822169107.5U patent/CN209485081U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594721A (en) * | 2019-10-28 | 2019-12-20 | 河南心连心化学工业集团股份有限公司 | Recovery device for high-temperature steam condensate and waste heat |
| CN114087045A (en) * | 2021-11-17 | 2022-02-25 | 连云港石化有限公司 | Energy utilization system for steam of ethylene oxide glycol device and use method thereof |
| CN114087045B (en) * | 2021-11-17 | 2023-03-07 | 连云港石化有限公司 | Energy utilization system for ethylene oxide glycol device steam and use method thereof |
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