CN2649951Y - Steam generator using waste heat of coking smoke - Google Patents
Steam generator using waste heat of coking smoke Download PDFInfo
- Publication number
- CN2649951Y CN2649951Y CN 200320114932 CN200320114932U CN2649951Y CN 2649951 Y CN2649951 Y CN 2649951Y CN 200320114932 CN200320114932 CN 200320114932 CN 200320114932 U CN200320114932 U CN 200320114932U CN 2649951 Y CN2649951 Y CN 2649951Y
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- heat exchanger
- group
- chamber
- tube connector
- flue gas
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Abstract
The utility model discloses a steam generator by coking flue gas waste heat. The steam generator consists of a shell, flue gas voltage sharing chambers, heat-exchanging chambers, an overheat steam heat exchanger, a master heat exchanger, a second preheat heat exchanger, a first preheat heat exchanger, a oxygen removal pack, a steam pack, a desulfurizing chamber, a limewater sprayer, a chimney, a water inlet pipe, a water discharge passage, a steam outlet pipe, a cold water booster pump, a preheat return pipe, a master heat-exchanging return chamber, a check valve and a hot water booster pump. The flue gas voltage-sharing chamber, the heat exchanging chamber, the desulfurizing chamber, the heat exchanging chamber and flue gas voltage-sharing chamber are horizontally arranged inside the shell in order; the heat exchanging chambers and flue gas voltage-sharing chambers are symmetrically arranged at both sides of the desulfurizing chamber. The flue gas and water vapor perform the heat exchange in the backflow mode in the heat exchanging chamber to output about 400 DEG C overheat steam via the steam outlet pipe. The generator fully utilizes the energy and discharged flue gas free of sulfur and dust.
Description
Affiliated technical field
The utility model relates to coking fume afterheat use device, especially for the steam generator of heat exchange.
Background technology
Modern coking device has developed into various ways, kiln coking is because of updating the mode that remains a large amount of uses, the imflammable gas that kiln coking produces in coking is discharged from after fully burning, its heat of discharging gas is very high, but not obtaining energy in the process of coking reclaims, and directly discharge by chimney, make the not high and contaminated environment of overall economic efficiency.
Summary of the invention
The purpose of this utility model is a kind of energy savings of design, protection environment, increases economic efficiency, and utilizes the coking fume afterheat to produce the steam generator of steam.
To achieve these goals, the utility model all presses chamber, Heat Room, superheated steam heat exchanger, main heat exchanger, second preheating heat exchanger, first preheating heat exchanger, deoxygenation bag, steamdrum, desulfurization chamber, limewash sprinkler, chimney, water inlet pipe, drainage, steam output pipe, cold water force (forcing) pump, pre-hot reflux condenser, main heat exchange return duct, check-valves and hot water force (forcing) pump to form by housing, flue gas.Order horizontally has flue gas all to press chamber, Heat Room, desulfurization chamber, Heat Room, flue gas all to press the chamber in the housing; Heat Room and the flue gas all chamber of pressure are arranged in the both sides of desulfurization chamber symmetrically; Flue gas is all pressed on the sidewall of chamber gas approach, connects the fume pipe of coking kiln, and flue gas all has porthole on the sidewall of the chamber of pressure next-door neighbour Heat Room, and porthole makes high-temperature flue gas enter Heat Room equably; All press the wall end of chamber to rise near flue gas in the Heat Room superheated steam heat exchanger is arranged successively, main heat exchanger, second preheating heat exchanger, first preheating heat exchanger; There is the limewash sprinkler top of desulfurization chamber, and it is outdoor that the bottom has drainage to lead to, and has porthole to lead to Heat Room on its two side adjacent with Heat Room; Chimney and perforation are with it arranged on the desulfurization chamber top; Water inlet pipe is through the cold water force (forcing) pump, check-valves is connected with the first preheating heat exchanger lower water inlet in the Heat Room, each top delivery port of first preheating heat exchanger connects the deoxygenation bag, pre-hot reflux condenser is connected on the central bottom of deoxygenation bag and the lower water inlet of first preheating heat exchanger, water outlet one side of deoxygenation bag has pipe to connect the top water inlet of second preheating heat exchanger by the hot water force (forcing) pump, the bottom delivery port of second preheating heat exchanger connects the lower end of the lower water inlet and the main heat exchange return duct of main heat exchanger, each top delivery port of main heat exchanger connects the middle part of steamdrum, the top air inlet of vapours heat exchanger is taken at the top of steamdrum, the bottom of steamdrum connects the upper end of main heat exchange return duct, and the upper end venthole of superheated steam heat exchanger connects steam output pipe.
Because this steam generator has adopted high efficiency various heat exchanger, therefore the fume afterheat that coking kiln group produces can be converted to steam for generating or other purposes, improved the utilization rate of limited resources, and the lower flue gas of the temperature after the heat exchange just enters in the atmosphere after desulfurization is handled, and significantly reduced the pollution to environment.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is an internal structure principle schematic of the present utility model
Fig. 2 is first preheating heat exchanger, second preheating heat exchanger and deoxygenation bag schematic perspective view
Fig. 3 is main heat exchanger and steamdrum schematic perspective view
Fig. 4 is a superheated steam heat exchanger schematic perspective view
Fig. 5 is the finned tube schematic perspective view
The schematic perspective view that Fig. 6 installs and uses in coking kiln group for the utility model
In the accompanying drawing, 1. housing, 2. flue gas is all pressed the chamber, 3. Heat Room, 4. superheated steam heat exchanger, 5. main heat exchanger, 6. second preheating heat exchanger, 7. first preheating heat exchanger, 8. deoxygenation bag, 9. steamdrum, 10. desulfurization chamber, 11. limewash sprinklers, 12. chimney, 13. water inlet pipes, 14. drainage, 15. steam output pipe, 16. cold water force (forcing) pumps, 17. pre-hot reflux condensers, 18. the main heat exchange return duct, 19. check-valves, 20. hot water force (forcing) pumps, 21. finned tube, 22. heat exchanger tubes, 23. heat exchange fins, 24. porthole, 25. gas approach, 26. coking kilns, 27. fume pipes, 28. safety valve, 29. steam security valve, 30. steam pipe.
The specific embodiment
As shown in Figure 1, the utility model all presses chamber 2, Heat Room 3, superheated steam heat exchanger 4, main heat exchanger 5, second preheating heat exchanger 6, first preheating heat exchanger 7, deoxygenation bag 8, steamdrum 9, desulfurization chamber 10, limewash sprinkler 11, chimney 12, water inlet pipe 13, drainage 14, steam output pipe 15, cold water force (forcing) pump 16, pre-hot reflux condenser 17, main heat exchange return duct 18, check-valves 19 and hot water force (forcing) pump 20 to form by housing 1, flue gas.Order horizontally has flue gas all to press chamber 2, Heat Room 3, desulfurization chamber 10, Heat Room 3, flue gas all to press chamber 2 in the housing 1; Heat Room 3 and flue gas all press chamber 2 to be arranged in the both sides of desulfurization chamber 10 symmetrically; Flue gas is all pressed on the sidewall of chamber 2 gas approach 25, connects the fume pipe 27 of coking kiln, and flue gas is all pressed on the sidewall of chamber 2 next-door neighbour's Heat Rooms 3 porthole 24, and porthole 24 makes high-temperature flue gas enter Heat Room 3 equably; All press the wall end of chamber 2 to rise near flue gases in the Heat Room 3 superheated steam heat exchanger 4 is arranged successively, main heat exchanger 5, second preheating heat exchanger 6, first preheating heat exchanger 7; There is limewash sprinkler 11 top of desulfurization chamber 10, and it is outdoor that the bottom has drainage 14 to lead to, and itself and Heat Room 3 have porthole 14 to lead to Heat Room 3 on the adjacent two side; Chimney 12 and perforation are with it arranged on desulfurization chamber 10 tops; Water inlet pipe 13 is through cold water force (forcing) pump 16, check-valves 19 is connected with first preheating heat exchanger, 7 lower water inlets in the Heat Room 3, each top delivery port of first preheating heat exchanger 7 connects deoxygenation bag 8, pre-hot reflux condenser 17 is connected on the central bottom of deoxygenation bag 8 and the lower water inlet of first preheating heat exchanger 7, the centre of deoxygenation bag 8 has pipe to connect the top water inlet of second preheating heat exchanger 6 by hot water force (forcing) pump 20, the bottom delivery port of second preheating heat exchanger 6 connects the lower end of the lower water inlet and the main heat exchange return duct 18 of main heat exchanger 5, each top delivery port of main heat exchanger 5 connects the middle part of steamdrum 9, the top air inlet of vapours heat exchanger 4 is taken at the top of steamdrum 9, the bottom of steamdrum 9 connects the upper end of main heat exchange return duct 18, and the upper end venthole of superheated steam heat exchanger 4 connects steam output pipe 15.
Shown in Figure 2, first preheating heat exchanger 7 is made up of each finned tube 21; Each finned tube 21 is lined up group side by side, and every group top and bottom connect welding with tube connector respectively, and tube connector of each group upper end is connected with each top delivery port, is connected with the lower water inlet of first preheating heat exchanger 7 after each tube connector of organizing the lower end interpenetrates and connects.
Second preheating heat exchanger 6 is made up of each finned tube 21; Each finned tube 21 is lined up group side by side, and every group top and bottom connect welding with tube connector respectively; First group upper end tube connector is connected with the top water inlet of second preheating heat exchanger 6; First group lower end tube connector connects second group lower end tube connector; Second group upper end tube connector connects the 3rd group upper end tube connector, and the 3rd group lower end tube connector is connected with the bottom delivery port of second preheating heat exchanger 6.
Shown in Figure 3, main heat exchanger 5 is made up of each finned tube 21; Each finned tube 21 is lined up group side by side, and every group top and bottom connect welding with tube connector respectively; Tube connector of each group upper end is connected with each top delivery port, is connected with the lower water inlet of main heat exchanger 5 after each tube connector of organizing the lower end interpenetrates and connects, and the centre of main heat exchanger 5 has a gap to pass through for main heat exchange return duct 18 from top to bottom.
Shown in Figure 4, superheated steam heat exchanger 4 is made up of each finned tube 21; Each finned tube 21 is lined up group side by side, and every group top and bottom connect welding with tube connector respectively; First group upper end tube connector is connected with the top air intake of superheated steam heat exchanger 4, first group lower end tube connector connects second group lower end tube connector, second group upper end tube connector connects the 3rd group upper end tube connector, the 3rd group lower end tube connector connects the 4th group lower end tube connector, and the 4th group upper end tube connector is connected with the upper end venthole of superheated steam heat exchanger 4.
Shown in Figure 5, form the finned tube 21 of each heat exchanger and form by heat exchange fin 23 and heat exchanger tube 22.Sheet heat exchange fin 23 closely is fitted on the heat exchanger tube 22 at interval, and the heat that helps between heat exchange fin 23 and the heat exchanger tube 22 transmits, and liquid or gas can be passed through in the hole in the heat exchanger tube 22.Finned tube 21 is formed some groups, shown in Fig. 2 Fig. 3 is 3 groups, in fact can 5 groups or more, determine according to the heat exchange amount.Every group of finned tube 21 has a lot of roots, just constituted the fin nest of tubes of hundreds of root generally, and so the finned tube of high surface area makes heat exchange good.Adopting the purpose of finned tube 21 heat exchange is that finned tube has enough big surface area to hot gas, and for water pipe inner area and little, this is based on the appropriate design of specific heats of gases appearance much smaller than specific heat of liquid.
Coking kiln 26 generally all is made up of a plurality of kilns arranged in a straight line, for the high temperature hot gas energy that utilizes them to discharge, inserts the utility model in kiln group's centre position.Therefore all there is the high-temperature residual heat flue of kiln group output the left and right sides of steam raising plant of the present utility model.For convenience of description, Fig. 1 is main describing with the left side, and the right side is symmetrical fully.
The high-temperature residual heat flue gas of coking kiln 26 outputs, entering flue gas by fume pipe 27 from gas approach 25 of the present utility model all presses the chamber 2, flue gas is all pressed between chamber 2 and the Heat Room 3 and is separated by the partition wall that a plurality of portholes 24 are arranged, and high-temperature flue gas makes the air-flow that enters Heat Room 3 even by porthole 24.In Heat Room 3, flue gas and steam carry out heat exchange with countercurrent heat exchange method, flue gas from left to right, and steam is from right to left.High-temperature flue gas is successively by superheated steam heat exchanger 4, main heat exchanger the 5, the 2nd preheating heat exchanger 6, first preheating heat exchanger 7, the heat of flue gas is absorbed by each heat exchanger and turns cold, enter desulfurization chamber 10 from the porthole 24 that leads to desulfurization chamber 10 then, the limewash [Ca (OH) of limewash sprinkler 11 ejections of desulfurization chamber 10 tops
2] and sulfur in smoke [SO
2] effect, generate calcium sulfate [CaSO
4] precipitation, discharge by drainage 14, just do not contain sulfur dioxide, compliance with environmental protection requirements in the waste gas of discharging by the chimney 12 on desulfurization chamber 10 tops like this.
The steam flow process opposite with flue gas flow direction is: deionized water enters first preheating heat exchanger 7 by water inlet pipe 13 through cold water force (forcing) pump 16, check-valves 19, so, prevent to flow backwards by check-valves 19 because each heat exchanger inside has very high pressure will have force (forcing) pump Final 16 row to pump into.Enter first preheating heat exchanger, 7 heated water, because of the gas that is dissolved in the water after being heated will be separated, when current enter top deoxygenation bag 8, isolated gas is excluded, pre-hot reflux condenser 17 allows unnecessary water be back to the bottom of first preheating heat exchanger 7, for safety, also has safety valve 28 on the deoxygenation bag 8.Hot water enters second preheating heat exchanger 6 again through force (forcing) pump 20 and further heats, and to the preceding temperature of boiling, enters main heat exchanger 5 then, main heat exchanger 5 has 2 groups, and top has that efferent duct exports steamdrum 9 on the vapour-liquid, and bottoms are water in the steamdrum 9, top is steam, has done effective separation; Main heat exchange return duct 18 is arranged at steamdrum 9 bottoms, will flow to the bottom of main heat exchanger 5 under water.Steam stream constantly circulation in main heat exchanger 5 like this, and vapor-liquid separation takes place in steamdrum 9, for safety, steam security valve 29 is arranged on steamdrum 9.Steam pipe 30 is arranged at steamdrum 9 tops, and the vapor (steam) temperature here has about 200 ℃, can not driving steam turbine.Therefore be input to superheated steam heat exchanger 4 by steam pipe 30 again, make about Steam Heating to 400 ℃.400 ℃ superheated steam compiles superheated steam that the opposite side Heat Room comes and delivers to steam turbine by steam output pipe 15 together and drive running and generating.
Claims (6)
1. a steam generator that utilizes the coking fume afterheat is made up of housing, water inlet pipe, steam output pipe; It is characterized in that: it also has flue gas all to press chamber, Heat Room, desulfurization chamber, chimney, limewash sprinkler, superheated steam heat exchanger, main heat exchanger, second preheating heat exchanger, first preheating heat exchanger, deoxygenation bag, steamdrum, main heat exchange return duct, pre-hot reflux condenser, check-valves, drainage, cold water force (forcing) pump and hot water force (forcing) pump; Order horizontally has flue gas all to press chamber, Heat Room, desulfurization chamber, Heat Room, flue gas all to press the chamber in the housing; Heat Room and the flue gas all chamber of pressure are arranged in the both sides of desulfurization chamber symmetrically; Flue gas is all pressed on the sidewall of chamber gas approach, connects the fume pipe of coking kiln, and flue gas all has porthole on the sidewall of the chamber of pressure next-door neighbour Heat Room, and porthole makes high-temperature flue gas enter Heat Room equably; All press the wall end of chamber to rise near flue gas in the Heat Room superheated steam heat exchanger is arranged successively, main heat exchanger, second preheating heat exchanger, first preheating heat exchanger; There is the limewash sprinkler top of desulfurization chamber, and it is outdoor that the bottom has drainage to lead to, and has porthole to lead to Heat Room on its two side adjacent with Heat Room, and chimney and perforation are with it arranged on the desulfurization chamber top; Water inlet pipe is through the cold water force (forcing) pump, check-valves is connected with the first preheating heat exchanger lower water inlet in the Heat Room, each top delivery port of first preheating heat exchanger connects the deoxygenation bag, pre-hot reflux condenser is connected on the central bottom of deoxygenation bag and the lower water inlet of first preheating heat exchanger, the centre of deoxygenation bag has pipe to connect the top water inlet of second preheating heat exchanger by the hot water force (forcing) pump, the bottom delivery port of second preheating heat exchanger connects the lower end of the lower water inlet and the main heat exchange return duct of main heat exchanger, each top delivery port of main heat exchanger connects the middle part of steamdrum, the top air inlet of vapours heat exchanger is taken at the top of steamdrum, the bottom of steamdrum connects the upper end of main heat exchange return duct, and the upper end venthole of superheated steam heat exchanger connects steam output pipe.
2. the steam generator that utilizes the coking fume afterheat according to claim 1 is characterized in that: described first preheating heat exchanger is made up of each finned tube; Each finned tube is lined up group side by side, and every group top and bottom connect with tube connector respectively and connect; Tube connector of each group upper end is connected with each top delivery port, is connected with the lower water inlet of first preheating heat exchanger after each tube connector of organizing the lower end interpenetrates and connects.
3. the steam generator that utilizes the coking fume afterheat according to claim 1 is characterized in that: described second preheating heat exchanger is made up of each finned tube; Each finned tube is lined up group side by side, and every group top and bottom connect with tube connector respectively and connect; First group upper end tube connector is connected with the top water inlet of second preheating heat exchanger, first group lower end tube connector connects second group lower end tube connector, second group upper end tube connector connects the 3rd group upper end tube connector, and the 3rd group lower end tube connector is connected with the bottom delivery port of second preheating heat exchanger.
4. the steam generator that utilizes the coking fume afterheat according to claim 1 is characterized in that: described main heat exchanger is made up of each finned tube; Each finned tube is lined up group side by side, and every group top and bottom connect with tube connector respectively and connect; Tube connector of each group upper end is connected with each top delivery port, is connected with the lower water inlet of main heat exchanger after each tube connector of organizing the lower end interpenetrates and connects, and the centre of main heat exchanger has a gap to pass through for the main heat exchange return duct from top to bottom.
5. the steam generator that utilizes the coking fume afterheat according to claim 1 is characterized in that: described superheated steam heat exchanger is made up of each finned tube; Each finned tube is lined up group side by side, and every group top and bottom connect with tube connector respectively and connect; First group upper end tube connector is connected with the top air intake of superheated steam heat exchanger, first group lower end tube connector connects second group lower end tube connector, second group upper end tube connector connects the 3rd group upper end tube connector, the 3rd group lower end tube connector connects the 4th group lower end tube connector, and the 4th group upper end tube connector is connected with the upper end venthole of superheated steam heat exchanger.
6. according to claim 2,3,4, the 5 described steam generators that utilize the coking fume afterheat, it is characterized in that: described finned tube is made up of heat exchange fin and heat exchanger tube; The sheet heat exchange fin is spaced, and closely is sleeved on the heat exchanger tube, and the heat that helps between heat exchange fin and the heat exchanger tube transmits; Liquid or gas can be passed through in hole in the heat exchanger tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320114932 CN2649951Y (en) | 2003-10-28 | 2003-10-28 | Steam generator using waste heat of coking smoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320114932 CN2649951Y (en) | 2003-10-28 | 2003-10-28 | Steam generator using waste heat of coking smoke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2649951Y true CN2649951Y (en) | 2004-10-20 |
Family
ID=34345640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320114932 Expired - Fee Related CN2649951Y (en) | 2003-10-28 | 2003-10-28 | Steam generator using waste heat of coking smoke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2649951Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287800A (en) * | 2011-06-10 | 2011-12-21 | 邢同春 | System for producing steam by utilizing coke oven to heat waste gas and waste heat |
| CN102322623A (en) * | 2011-08-24 | 2012-01-18 | 成都中冶节能环保工程有限公司 | Coke oven top waste heat reclaiming system |
| CN104833229A (en) * | 2015-05-17 | 2015-08-12 | 成都中冶节能环保工程有限公司 | Thermal protection type coke oven waste heat recovery power generation system based on power source adjustment circuit |
| CN104833227A (en) * | 2015-05-17 | 2015-08-12 | 成都中冶节能环保工程有限公司 | Thermal protection type coke oven waste heat recovery power generation system based on stabilized power supply circuit |
| CN104913651A (en) * | 2015-05-17 | 2015-09-16 | 成都中冶节能环保工程有限公司 | Thermal protection type coke oven waste heat electricity generation system based on boost power circuit |
| CN104930858A (en) * | 2015-05-14 | 2015-09-23 | 成都中冶节能环保工程有限公司 | Elimination-type coke oven waste heat power generation system based on power supply regulation circuit |
| CN110360854A (en) * | 2019-07-27 | 2019-10-22 | 乐杰 | A kind of thermal power generation unit residual heat using device |
-
2003
- 2003-10-28 CN CN 200320114932 patent/CN2649951Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287800A (en) * | 2011-06-10 | 2011-12-21 | 邢同春 | System for producing steam by utilizing coke oven to heat waste gas and waste heat |
| CN102322623A (en) * | 2011-08-24 | 2012-01-18 | 成都中冶节能环保工程有限公司 | Coke oven top waste heat reclaiming system |
| CN102322623B (en) * | 2011-08-24 | 2013-11-13 | 成都中冶节能环保工程有限公司 | Coke oven top waste heat reclaiming system |
| CN104930858A (en) * | 2015-05-14 | 2015-09-23 | 成都中冶节能环保工程有限公司 | Elimination-type coke oven waste heat power generation system based on power supply regulation circuit |
| CN104833229A (en) * | 2015-05-17 | 2015-08-12 | 成都中冶节能环保工程有限公司 | Thermal protection type coke oven waste heat recovery power generation system based on power source adjustment circuit |
| CN104833227A (en) * | 2015-05-17 | 2015-08-12 | 成都中冶节能环保工程有限公司 | Thermal protection type coke oven waste heat recovery power generation system based on stabilized power supply circuit |
| CN104913651A (en) * | 2015-05-17 | 2015-09-16 | 成都中冶节能环保工程有限公司 | Thermal protection type coke oven waste heat electricity generation system based on boost power circuit |
| CN110360854A (en) * | 2019-07-27 | 2019-10-22 | 乐杰 | A kind of thermal power generation unit residual heat using device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SICHUAN XIWANG SHENLAN AIR CONDITIONING MANUFACTU Free format text: FORMER OWNER: CHENGDU HOPE ELECTRONIC RESEARCH INSTITUTE Effective date: 20071214 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20071214 Address after: No. 20, West Avenue, West Park, hi tech Zone, Sichuan, Chengdu: 610000 Patentee after: Sichuan hope deep blue air conditioner manufacturing Co., Ltd. Address before: No. 181, Airport Road, Sichuan, Chengdu: 610225 Patentee before: Xiwang Electronic Research Inst. Chengdu City |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041020 Termination date: 20121028 |