CN107903950A - A kind of raw coke oven gas waste heat is used for the hot water cyclesystem of vacuum potassium carbonate desulfurization - Google Patents
A kind of raw coke oven gas waste heat is used for the hot water cyclesystem of vacuum potassium carbonate desulfurization Download PDFInfo
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- CN107903950A CN107903950A CN201711401876.7A CN201711401876A CN107903950A CN 107903950 A CN107903950 A CN 107903950A CN 201711401876 A CN201711401876 A CN 201711401876A CN 107903950 A CN107903950 A CN 107903950A
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- hot water
- pipeline
- water
- nitrogen
- doctor solution
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 113
- 239000007789 gas Substances 0.000 title claims abstract description 29
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 title claims abstract description 22
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 21
- 230000023556 desulfurization Effects 0.000 title claims abstract description 21
- 239000000571 coke Substances 0.000 title claims abstract description 20
- 239000002918 waste heat Substances 0.000 title claims abstract description 20
- 229910000027 potassium carbonate Inorganic materials 0.000 title claims abstract description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 59
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 230000006835 compression Effects 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 claims abstract description 4
- 230000003020 moisturizing effect Effects 0.000 claims description 11
- 230000008929 regeneration Effects 0.000 claims description 9
- 238000011069 regeneration method Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000008234 soft water Substances 0.000 claims description 7
- 238000005381 potential energy Methods 0.000 abstract description 7
- 238000011084 recovery Methods 0.000 abstract description 4
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 239000013589 supplement Substances 0.000 abstract description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 18
- 229910021529 ammonia Inorganic materials 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000003034 coal gas Substances 0.000 description 3
- 238000004939 coking Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000008236 heating water Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- MIVRPAPSROAFHX-UHFFFAOYSA-M [O-]C(O)=O.S.[K+] Chemical compound [O-]C(O)=O.S.[K+] MIVRPAPSROAFHX-UHFFFAOYSA-M 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000007701 flash-distillation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
- C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
- C10K1/12—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors
- C10K1/122—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors containing only carbonates, bicarbonates, hydroxides or oxides of alkali-metals (including Mg)
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/002—Removal of contaminants
- C10K1/003—Removal of contaminants of acid contaminants, e.g. acid gas removal
- C10K1/004—Sulfur containing contaminants, e.g. hydrogen sulfide
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
- F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
- F24D3/1058—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system disposition of pipes and pipe connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/16—Waste heat
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention relates to the hot water cyclesystem that a kind of raw coke oven gas waste heat is used for vacuum potassium carbonate desulfurization, including the closed circulation system being made of primary cooler, hot water feeding pipe road, doctor solution reboiler, hot water backwater's pipeline；Hot water circulating pump is set on hot water backwater's pipeline；Expansion tank is additionally provided with hot water backwater's pipeline, relief valve is set at the top of expansion tank, top sets compressed nitrogen entrance, and compressed nitrogen entrance connects external compression Nitrogen source gases by nitrogen pipeline, nitrogen pressure regulator valve is set on nitrogen pipeline；Expansion tank is additionally provided with liquid level gauge one.The present invention uses closed circulation system, it can avoid circulation water loss and losses of potential energy caused by the circulation of primary cooler epimere high-temperature-hot-water open type, at the same time by setting automatic water supplement pipeline and being passed through the expansion tank of compressed gas, the problem of avoiding water loss and pressure instability common during closed cycle, realizes efficient and energy conservation object during waste heat recovery.
Description
Technical field
The present invention relates to coking industry technical field of energy saving and environmental protection, more particularly to a kind of raw coke oven gas waste heat to be used for vacuum carbonic acid
The hot water cyclesystem of potassium desulfurization.
Background technology
During reclaiming clean coke-oven gas, about 80~84 DEG C of the raw coke oven gas from gas collecting tube must be in primary cooler
It is cooled to 20~22 DEG C.Primary cooler generally uses the indirect primary cooler of transverse tube, with industrial circulating water and water at low temperature to raw coke oven gas into
Row sub-sectional cooling.The user of high-temperature-hot-water or heating if needed, primary cooler can use epimere, stage casing, hypomere three-stage structure, on
Section circulating hot water goes out primary cooler temperature up to 75~78 DEG C.
Vacuum potassium carbonate desulfurization regeneration bottom of towe temperature needs to be maintained at 60 DEG C or so, the high temperature produced using primary cooler epimere
Hot water, there is provided the heat needed for the regeneration of vacuum potassium carbonate sulfur removing pregnant solution, can not only recycle the waste heat of raw coke oven gas, save de-
Quantity of steam needed for the regeneration of sulphur rich solution, while the industrial cycle water needed for raw coke oven gas cooling can be reduced, it is coking industry coal gas
One important energy conservation and environmental protection measure in Recovery Purifying field.Coking industry primary cooler epimere high-temperature-hot-water is used for vacuum carbonic acid at present
The circulation of potassium desulfurization, is generally designed using open circuit, high-temperature-hot-water after reboiler and the heat exchange of regenerator bottom desulphurization circulating liquid,
Before returning to primary cooler epimere, intercycle groove is introduced into, then is pumped to primary cooler epimere and exchanges heat with raw coke oven gas.Hot water circuit mistake
Hot water potential energy is not fully used in journey, and hot water has with air directly to be contacted, and there are hot water volatilization loss and oxygen to enter
The problem of hot-water heating system etching apparatus and pipeline.
It " is desorption heat source directly using raw coke oven gas waste heat that the Chinese patent of Patent No. CN101016485A, which discloses a kind of,
Vacuum carbonate method coal gas desulfurization technique and its equipment ", its using the open circulation with circulation desulfurization liquid bath, and
It is the waste heat that doctor solution is sent directly into primary cooler epimere absorption raw coke oven gas, but since doctor solution has stronger corrosivity, after
The maintenance cost of phase and influence to production can not be ignored, and there are the shortcomings that losses of potential energy and waste of energy for open circulation.Specially
Profit number discloses a kind of " coke-oven plant's primary cooler heating water waste heat recovery device " for the Chinese patent of CN205842824U, its
Circulated using the open type with heating pond, shortcoming is the recirculated water that primary cooler epimere high-temperature-hot-water will enter the formula that plows open
Pond, and need powerful water pump that recirculated water is fed again into primary cooler epimere, the volatilization of recirculated water is had during this
Loss, and need to consume a large amount of electric energy to make the potential energy that recirculated water obtains nearly 40 meters again.
Patent No. CN104787825A proposes a kind of " coal gas primary cooler waste heat ammonia steaming device and waste heat ammonia still process method ",
It is sent using the negative pressure ammonia distillation process using raw coke oven gas waste heat as heat source, distilled ammonia wastewater from ammonia still bottom by distilled ammonia wastewater pumping
To primary cooler epimere, after exchanging heat with raw coke oven gas, ammonia still flash distillation is returned to provide the heat of ammonia still process.It is this using distilled ammonia wastewater as be situated between
The open circulation technique of matter, the corrosion to equipment and pipeline is stronger, and there are the shortcomings that losses of potential energy and waste of energy.
The content of the invention
The present invention provides the hot water cyclesystem that a kind of raw coke oven gas waste heat is used for vacuum potassium carbonate desulfurization, followed using enclosed
Loop system, can avoid circulation water loss and losses of potential energy caused by the circulation of primary cooler epimere high-temperature-hot-water open type, at the same time
By setting automatic water supplement pipeline and being passed through the expansion tank of compressed gas, common water loss during closed cycle is avoided
And the problem of pressure instability, realize efficient and energy conservation object during waste heat recovery.
In order to achieve the above object, the present invention is realized using following technical scheme：
A kind of raw coke oven gas waste heat is used for the hot water cyclesystem of vacuum potassium carbonate desulfurization, including is supplied water by primary cooler, hot water
Pipeline, doctor solution reboiler, the closed circulation system of hot water backwater's pipeline composition；The epimere high-temperature-hot-water outlet of the primary cooler
The heat transferring medium entrance of doctor solution reboiler is connected by hot water feeding pipe road, the heat transferring medium outlet of doctor solution reboiler passes through
The epimere low-temperature water heating outlet of hot water backwater's pipeline connection primary cooler；The doctor solution entrance and doctor solution of the doctor solution reboiler
The doctor solution outlet on regenerator top is connected, the doctor solution outlet of doctor solution reboiler and the doctor solution of desulfurization regeneration tower bottom
Entrance is connected；Hot water circulating pump is set on hot water backwater's pipeline；Expansion tank, the top of expansion tank are additionally provided with hot water backwater's pipeline
Portion sets relief valve, and top sets compressed nitrogen entrance, and compressed nitrogen entrance connects external compression Nitrogen source gases, nitrogen by nitrogen pipeline
Nitrogen pressure regulator valve is set in feed channel；Expansion tank is additionally provided with liquid level gauge one.
One end of hot water backwater's pipeline connection moisturizing pipeline between the hot water circulating pump and expansion tank, moisturizing pipeline
The other end set soft water entrance, be equipped with stop valve, water supply tank and small pump successively in the moisturizing pipeline in soft water entrance downstream；Its
In, small pump and one interlocked control of liquid level gauge on expansion tank；Liquid level gauge two is set on water supply tank, liquid level gauge two joins with stop valve
Lock control.
Compared with prior art, the beneficial effects of the invention are as follows：
1) a kind of proper closed circulation system is employed, is compared with existing open-cycle system：It can avoid
Water caused by open environment (such as intercycle groove, cooling tower, circulating water pool) is lost；Oxygen is avoided to enter hot-water heating system to equipment
With the corrosion of pipeline；Reduce the mechanical power loss of water, as long as the power of hot water circulating pump can overcome the pipeline in cyclic process
Resistance, has saved substantial amounts of electric energy；
2) expansion tank is set on heating water return pipeline, volumetric expansion caused by after being heated for absorption cycle water, keeps away
Exempt from that circulating water line is caused to impact；Pressure in expansion tank is maintained using compressed nitrogen, avoids expansion tank from being placed in
Circulation line top and caused by it is inconvenient.
Brief description of the drawings
Fig. 1 is that the structure for the hot water cyclesystem that a kind of raw coke oven gas waste heat of the present invention is used for vacuum potassium carbonate desulfurization is shown
It is intended to.
In figure：1. 5. relief valve of primary cooler 2. desulfurization regeneration tower, 3. hot water circulating pump, 4. expansion tank, 6. nitrogen
10. hot water feeding pipe road of pressure regulator valve 7. small pump, 8. water supply tank, 9. stop valve, 11. hot water backwater's pipeline, 12. moisturizing pipeline
13. 14. liquid level gauge of doctor solution reboiler, one 15. liquid level gauge two
Embodiment
The embodiment of the present invention is described further below in conjunction with the accompanying drawings：
As shown in Figure 1, a kind of raw coke oven gas waste heat of the present invention is used for the hot water cyclesystem of vacuum potassium carbonate desulfurization, bag
Include the closed circulation system being made of primary cooler 1, hot water feeding pipe road 10, doctor solution reboiler 13, hot water backwater's pipeline 11；Institute
The epimere high-temperature-hot-water outlet for stating primary cooler 2 is entered by the heat transferring medium of the connection doctor solution reboiler of hot water feeding pipe road 10 13
Mouthful, the heat transferring medium outlet of doctor solution reboiler 13 is gone out by the epimere low-temperature water heating of the connection primary cooler 2 of hot water backwater's pipeline 11
Mouthful；The doctor solution entrance of the doctor solution reboiler 13 is connected with the doctor solution outlet on 2 top of desulfurization regeneration tower, and doctor solution is again
The doctor solution outlet of boiling device 13 is connected with the doctor solution entrance of 2 bottom of desulfurization regeneration tower；Hot water is set on hot water backwater's pipeline 11
Circulating pump 3；Expansion tank 4 is additionally provided with hot water backwater's pipeline 11, the top of expansion tank 4 sets relief valve 5, and top sets compressed nitrogen
Gas entrance, compressed nitrogen entrance connect external compression Nitrogen source gases by nitrogen pipeline, nitrogen pressure regulator valve 6 are set on nitrogen pipeline；
Expansion tank 4 is additionally provided with liquid level gauge 1.
One end of hot water backwater's pipeline connection moisturizing pipeline 12 between the hot water circulating pump 3 and expansion tank 4, moisturizing
The other end of pipeline 12 sets soft water entrance, and stop valve 9,8 and of water supply tank are equipped with successively in the moisturizing pipeline 12 in soft water entrance downstream
Small pump 7；Wherein, small pump 7 and one 14 interlocked control of liquid level gauge on expansion tank 4；Liquid level gauge 2 15 is set on water supply tank 8,
Liquid level gauge 2 15 and 9 interlocked control of stop valve.
A kind of raw coke oven gas waste heat of the present invention is used in the hot water cyclesystem of vacuum potassium carbonate desulfurization, and high-temperature-hot-water exists
By primary cooler 1 and doctor solution reboiler 13 and connect both hot water feeding pipe road 10 and hot water backwater's pipeline 11 formed
Closed circulation system internal circulation flow, will not pressure release without unlimited environment.
Hot water circulating pump 3 is provided with hot water backwater's pipeline 11, it is used for for the high-temperature-hot-water in closed circulation system
Energy is provided to overcome pipe resistance, due to there is no pressure release in closed circulation system high temperature hot water, it is not necessary to repeat constantly
Potential energy is obtained, so can be met the requirements using the hot water circulating pump 3 of smaller power, electric energy can be saved.
Expansion tank 4 is provided with hot water backwater's pipeline 11, for absorption cycle water be heated caused by volumetric expansion,
Protect whole circulation line.
The compressed nitrogen being passed through on expansion tank 4 after the adjustment of nitrogen pressure regulator valve 6, keeps having in closed circulation system
Stablize suitable pressure.Relief valve 5 is set on expansion tank 4, for protecting closed cycle system when nitrogen pressure regulator valve 6 fails
Pressure is unlikely to excessive in system.
Pressure is maintained due to being passed through compressed nitrogen on expansion tank 4, expansion tank 4 can be installed on easy to operation
Lower, rather than the peak of whole closed circulation system.
Liquid level gauge 1 is provided with expansion tank 4, for monitoring simultaneously interlocked control small pump 7, when whole enclosed is followed
Loop system can interlock due to leakage or other reasons and during water shortage and open small pump 7, by moisturizing pipeline 12 to closed cycle
Supplement soft water in system.
The entrance of small pump 7 is connected by pipeline with water supply tank 8, and water supply tank 8 is provided with liquid level gauge 2 15, for monitoring simultaneously
Interlocked control stop valve 9, when water level is too low in water supply tank 8, can interlock and open the water filling into water supply tank 8 of stop valve 9, until
Water level returns to setting value.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (2)
1. a kind of raw coke oven gas waste heat be used for vacuum potassium carbonate desulfurization hot water cyclesystem, it is characterised in that including by primary cooler,
Hot water feeding pipe road, doctor solution reboiler, the closed circulation system of hot water backwater's pipeline composition；The epimere high temperature of the primary cooler
Hot water outlet connects the heat transferring medium entrance of doctor solution reboiler, the heat transferring medium of doctor solution reboiler by hot water feeding pipe road
The epimere low-temperature water heating that outlet connects primary cooler by hot water backwater's pipeline exports；The doctor solution entrance of the doctor solution reboiler
It is connected with the doctor solution outlet on desulfurization regeneration tower top, doctor solution outlet and the desulfurization regeneration tower bottom of doctor solution reboiler
Doctor solution entrance be connected；Hot water circulating pump is set on hot water backwater's pipeline；Expansion tank is additionally provided with hot water backwater's pipeline, is expanded
Relief valve is set at the top of water tank, top sets compressed nitrogen entrance, and compressed nitrogen entrance connects external compression nitrogen by nitrogen pipeline
Gas source of the gas, sets nitrogen pressure regulator valve on nitrogen pipeline；Expansion tank is additionally provided with liquid level gauge one.
2. a kind of raw coke oven gas waste heat according to claim 1 is used for the hot water cyclesystem of vacuum potassium carbonate desulfurization, it is special
Sign is that hot water backwater's pipeline between the hot water circulating pump and expansion tank connects one end of moisturizing pipeline, moisturizing pipeline
The other end set soft water entrance, be equipped with stop valve, water supply tank and small pump successively in the moisturizing pipeline in soft water entrance downstream；Its
In, small pump and one interlocked control of liquid level gauge on expansion tank；Liquid level gauge two is set on water supply tank, liquid level gauge two joins with stop valve
Lock control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711401876.7A CN107903950A (en) | 2017-12-22 | 2017-12-22 | A kind of raw coke oven gas waste heat is used for the hot water cyclesystem of vacuum potassium carbonate desulfurization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711401876.7A CN107903950A (en) | 2017-12-22 | 2017-12-22 | A kind of raw coke oven gas waste heat is used for the hot water cyclesystem of vacuum potassium carbonate desulfurization |
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| Publication Number | Publication Date |
|---|---|
| CN107903950A true CN107903950A (en) | 2018-04-13 |
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| CN201711401876.7A Pending CN107903950A (en) | 2017-12-22 | 2017-12-22 | A kind of raw coke oven gas waste heat is used for the hot water cyclesystem of vacuum potassium carbonate desulfurization |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110295066A (en) * | 2018-12-07 | 2019-10-01 | 西安诺普电气工程技术有限公司 | Solve the transverse pipe initial cooler and its method of exhaust valve water spray |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101016485A (en) * | 2007-03-13 | 2007-08-15 | 中冶焦耐工程技术有限公司 | Vacuum carbonate method coal gas desulfurization processes and apparatus thereof directly utilizing deserted coal gas residual heat as desorption heat source |
| CN207738712U (en) * | 2017-12-22 | 2018-08-17 | 中冶焦耐(大连)工程技术有限公司 | A kind of raw coke oven gas waste heat is used for the hot water cyclesystem of vacuum potassium carbonate desulfurization |
-
2017
- 2017-12-22 CN CN201711401876.7A patent/CN107903950A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101016485A (en) * | 2007-03-13 | 2007-08-15 | 中冶焦耐工程技术有限公司 | Vacuum carbonate method coal gas desulfurization processes and apparatus thereof directly utilizing deserted coal gas residual heat as desorption heat source |
| CN207738712U (en) * | 2017-12-22 | 2018-08-17 | 中冶焦耐(大连)工程技术有限公司 | A kind of raw coke oven gas waste heat is used for the hot water cyclesystem of vacuum potassium carbonate desulfurization |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110295066A (en) * | 2018-12-07 | 2019-10-01 | 西安诺普电气工程技术有限公司 | Solve the transverse pipe initial cooler and its method of exhaust valve water spray |
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