CN207019036U - The ultra-clean cold-heat combined system of discharge in coke-oven plant - Google Patents
The ultra-clean cold-heat combined system of discharge in coke-oven plant Download PDFInfo
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- CN207019036U CN207019036U CN201720830176.9U CN201720830176U CN207019036U CN 207019036 U CN207019036 U CN 207019036U CN 201720830176 U CN201720830176 U CN 201720830176U CN 207019036 U CN207019036 U CN 207019036U
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Abstract
The utility model provides a kind of ultra-clean cold-heat combined system of discharge in coke-oven plant, including denitrification apparatus, waste heat boiler, absorption tower, regenerator, denitrification apparatus is used to carry out denitration process to flue gas, waste heat boiler is used for the waste heat of recovered flue gas, the flue gas of waste heat boiler provides thermal source by heat exchanger for absorption refrigeration unit, and absorption tower, regenerator are used to carry out flue gas deep desulfuration, dedusting and degassing colloidal sol processing.The ultra-clean cold-heat combined system of discharge in the coke-oven plant, by configuring the devices such as denitrification apparatus, waste heat boiler, absorption tower, regenerator, depth recovery and the waste heat for efficiently utilizing coking kiln gas, flue gas is handled with time stage, the ultra-clean discharge of flue gas is realized, ensures the energy-conserving and environment-protective income of whole year.
Description
Technical field
It the utility model is related to a kind of ultra-clean cold-heat combined system of discharge in coke-oven plant.
Background technology
The energy is the important substance basis of social development, and the energy problem that China faces is mainly reflected in efficiency of energy utilization
Low, deficiency in economic performance, energy-consuming increase rapidly, eco-environmental pressure is obvious etc..Country plans in Eleventh Five-Year Development Plan
In, clearly propose, using the energy-saving and emission-reduction strategic task long-term as one, in follow-up development plan, to improve constantly and quantify
Energy-saving and emission-reduction index and enlarge financial investment.
Coke oven is that efficient Thermal Equipment, net efficiency are up to 87%~89% in energy conversion device.Because refining
Burnt process is not only a more perfect conversion process of energy, can produce high-quality secondary energy sources, and coke oven body equipment passes through
Updating for more than 100 years is crossed, it is more perfect in gas-fired, flue gas heat utilization, thermal insulation etc..But this can not say
It is bright it without energy-conservation leeway.
High efficiente callback utilize in process of coking caused residual heat resources be resources conservation, environment-friendly green coke-oven plant
Where the Main way and potentiality of energy-conservation, and put forward one of efficient main path.At present, existing conservation measures is main
Have：1st, coke oven heat outputting is fully recycled；2nd, Dry Quenching Technology is deeply promoted, fully recycles red burnt waste heat；3rd, research and develop
The recycling of raw coke oven gas waste heat；4th, the recycling of flue gases of cock oven waste heat.
Above measure, from a certain respect, the waste heat recovery to coke oven is studied, and does not further investigate coke-oven plant's energy
Source is distributed rationally, therefore can not realize the maximization and generalization of energy-conservation.In addition, existing conservation measures, in terms of environmental protection
Research be short of, and at present environment-friendly products often increase power consumption, do not possess energy conservation characteristic.
Utility model content
Technical problem to be solved in the utility model is to overcome the waste heat recovery measure of coke oven of the prior art
Energy-saving efficiency it is low and the defects of do not have environment protecting concurrently, and provide a kind of coke-oven plant the ultra-clean cold-heat combined system of discharge.
The utility model solves above-mentioned technical problem by the following technical programs：
The utility model provides a kind of ultra-clean cold-heat combined system of discharge in coke-oven plant, including：
Denitrification apparatus, the denitrification apparatus have denitration gas approach, a denitration exhanst gas outlet, and flue gas is from the denitration flue gas
Import enters in the denitrification apparatus and discharged from the denitration exhanst gas outlet；
Waste heat boiler, the waste heat boiler have boiler smoke import, boiler flue gas outlet, the import of boiler low-temperature receiver, boiler
Low-temperature receiver exports, and is connected between the boiler smoke import, boiler flue gas outlet by boiler smoke pipeline, the boiler low-temperature receiver
Import, boiler low-temperature receiver are connected between outlet by boiler low-temperature receiver pipeline, the flue gas in the boiler smoke pipeline and the pot
Working medium in stove low-temperature receiver pipeline carries out heat exchange, and boiler smoke import is connected with denitration exhanst gas outlet；
Absorption tower, the absorption tower have adsorption tower smoke import, adsorption tower smoke outlet, absorption tower solution inlet port, suction
Tower taphole is received, the adsorption tower smoke import is connected with the boiler flue gas outlet, the adsorption tower smoke import position
In the bottom on the absorption tower and the flue gas is discharged into the inside on the absorption tower, and the adsorption tower smoke, which exports, is located at institute
State the top on absorption tower and discharge the flue gas to outside, the absorption tower solution inlet port be located at the top on the absorption tower and to
Hygroscopic solution is sprayed in the absorption tower, the absorption tower taphole is located at the bottom on the absorption tower and discharges the moisture absorption
Solution；
Regenerator, the regenerator has regenerator solution inlet port, regenerator taphole, indirect steam outlet, described
Regenerator solution inlet port is connected with the absorption tower taphole, and the regenerator taphole enters with the absorption tower solution
Mouth is connected, and the indirect steam that the indirect steam outlet goes out the hygroscopic solution heating evaporation is discharged.
It is preferred that the ultra-clean cold-heat combined system of discharge in coke-oven plant also includes at least one heat exchanger, the boiler smoke
Gas exports and/or indirect steam outlet is connected with least one heat exchanger and heat exchange.
It is preferred that also there is absorption tower low-temperature receiver import, absorption tower low-temperature receiver to export on the absorption tower, the absorption tower low-temperature receiver enters
Mouth, absorption tower low-temperature receiver are connected between outlet by absorption tower low-temperature receiver pipeline, working medium and institute in the absorption tower low-temperature receiver pipeline
The working medium for stating the inside on absorption tower carries out heat exchange.
It is preferred that the absorption tower low-temperature receiver outlet is connected with least one heat exchanger and heat exchange.
It is preferred that the regenerator also has regenerator heat source import, regenerator thermal source outlet, the regenerator thermal source enters
Mouth is connected between the regenerator thermal source outlet by regenerator thermal source pipeline, the working medium in the regenerator thermal source pipeline
Heat exchange is carried out with the working medium of the inside of the regenerator, the regenerator heat source import is connected with boiler low-temperature receiver outlet
It is logical.
It is preferred that the regenerator thermal source outlet is connected with least one heat exchanger and heat exchange.
It is preferred that the ultra-clean cold-heat combined system of discharge in coke-oven plant also includes absorption refrigeration unit, it is described absorption
Refrigeration unit is connected with least one heat exchanger and heat exchange.
It is preferred that the ultra-clean cold-heat combined system of discharge in coke-oven plant also includes：
First Heat Exchanger, the First Heat Exchanger be located at the boiler flue gas outlet and the adsorption tower smoke import it
Between, the First Heat Exchanger has the first gas approach, the first exhanst gas outlet, the first low-temperature receiver import, the outlet of the first low-temperature receiver, described
It is connected between first gas approach, the first exhanst gas outlet by the first flue, the first low-temperature receiver import, the first low-temperature receiver
It is connected between outlet by the first low-temperature receiver pipeline, in the flue gas in first flue and the first low-temperature receiver pipeline
Working medium carries out heat exchange, and the boiler flue gas outlet is connected with first gas approach, first exhanst gas outlet and institute
Adsorption tower smoke import is stated to be connected；
Second heat exchanger, second heat exchanger have the second low-temperature receiver import, the outlet of the second low-temperature receiver, Secondary Heat Source import,
Secondary Heat Source is exported, and the second low-temperature receiver import, the second low-temperature receiver are connected between outlet by the second low-temperature receiver pipeline, and described second
Heat source import, Secondary Heat Source are connected between outlet by Secondary Heat Source pipeline, working medium and institute in the second low-temperature receiver pipeline
State the working medium in Secondary Heat Source pipeline and carry out heat exchange, the Secondary Heat Source import is connected with indirect steam outlet, institute
State Secondary Heat Source outlet with exterior line to be connected, between the second low-temperature receiver import, the outlet of the second low-temperature receiver, the outlet of the first low-temperature receiver
It is interconnected；
3rd heat exchanger, the 3rd heat exchanger have the 3rd low-temperature receiver import, the outlet of the 3rd low-temperature receiver, the 3rd heat source import,
3rd thermal source outlet, the 3rd low-temperature receiver import, the 3rd low-temperature receiver are connected between outlet by the 3rd low-temperature receiver pipeline, and the described 3rd
It is connected between heat source import, the 3rd thermal source outlet by the 3rd thermal source pipeline, working medium and institute in the 3rd low-temperature receiver pipeline
State the working medium in the 3rd thermal source pipeline and carry out heat exchange, the 3rd heat source import is connected with indirect steam outlet, institute
The outlet of the 3rd thermal source outlet and the Secondary Heat Source is stated to be connected, the 3rd low-temperature receiver import, the outlet of the 3rd low-temperature receiver with it is described
Exterior line is connected.
It is preferred that also there is absorption tower low-temperature receiver import, absorption tower low-temperature receiver to export on the absorption tower, the absorption tower low-temperature receiver enters
Mouthful, absorption tower low-temperature receiver outlet between be connected by absorption tower low-temperature receiver pipeline, the working medium of the absorption tower low-temperature receiver pipeline with it is described
The working medium of the inside on absorption tower carries out heat exchange；
The regenerator also has regenerator heat source import, regenerator thermal source outlet, the regenerator heat source import and institute
State and be connected by regenerator thermal source pipeline between regenerator thermal source outlet, the working medium in the regenerator thermal source pipeline with it is described
The working medium of the inside of regenerator carries out heat exchange, and the regenerator heat source import is connected with boiler low-temperature receiver outlet；
The ultra-clean cold-heat combined system of discharge in coke-oven plant also includes the 4th heat exchanger, and the 4th heat exchanger has the 4th
Low-temperature receiver import, the outlet of the 4th low-temperature receiver, the 4th heat source import, the 4th thermal source outlet, the 4th low-temperature receiver import, the outlet of the 4th low-temperature receiver
Between be connected by the 4th low-temperature receiver pipeline, pass through the 4th thermal source pipeline between the 4th heat source import, the 4th thermal source outlet
It is connected, the working medium in the 4th low-temperature receiver pipeline and the working medium progress heat exchange in the 4th thermal source pipeline, the described 4th
Heat source import is connected with the regenerator thermal source outlet, and the 4th thermal source outlet is connected with the exterior line, described
4th low-temperature receiver import is connected with absorption tower low-temperature receiver outlet, and the 4th low-temperature receiver outlet is connected with the 3rd low-temperature receiver import
It is logical.
It is preferred that the ultra-clean cold-heat combined system of discharge in coke-oven plant also includes absorption refrigeration unit, it is described absorption
Refrigeration unit has refrigeration unit heat source import, refrigeration unit thermal source outlet, refrigeration unit chilled water import, refrigeration unit freezing
Water out, it is connected between the refrigeration unit heat source import, refrigeration unit thermal source outlet by refrigeration unit thermal source pipeline, institute
State and be connected between refrigeration unit chilled water import, refrigeration unit chilled water outlet by chilled water pipeline, the chilled water pipe
Chilled water in road and the working medium progress heat exchange in the refrigeration unit thermal source pipeline, the refrigeration unit chilled water import,
Refrigeration unit chilled water outlet is connected with the external pipe, and the refrigeration unit heat source import exports with first low-temperature receiver
It is connected, the refrigeration unit thermal source outlet is connected with the first low-temperature receiver import.
It is preferred that the ultra-clean cold-heat combined system of discharge in coke-oven plant also includes denitrification apparatus, the denitrification apparatus has
Denitration gas approach, denitration exhanst gas outlet, the denitration exhanst gas outlet are connected with the boiler smoke import, the flue gas from
The denitration gas approach enters in the denitrification apparatus and discharged from the denitration exhanst gas outlet.
It is preferred that the ultra-clean cold-heat combined system of discharge in coke-oven plant also includes heater, the heater includes coke oven
Gas approach, coke oven flue gas outlet, heating source import, heating source outlet, between the coke oven flue gas import, coke oven flue gas outlet
It is connected by coke oven flue gas pipeline, the heating source import, heating source are connected between outlet by heating source pipeline, described
Flue gas in coke oven flue gas pipeline and the working medium in the heating source pipeline carry out heat exchange, the coke oven flue gas outlet with it is described
Denitration gas approach is connected.
On the basis of common sense in the field is met, above-mentioned each optimum condition, can be combined, produce the utility model respectively compared with
Good example.
Positive effect of the present utility model is：
The ultra-clean cold-heat combined system of discharge in the coke-oven plant, it is deep by configuring the devices such as waste heat boiler, absorption tower, regenerator
Degree reclaims and efficiently utilizes the waste heat of coking kiln gas, also has the environmental benefit of the ultra-clean discharge of flue gas concurrently, ensure that the section of whole year
Can environmentally friendly income.
Brief description of the drawings
Fig. 1 is the schematic diagram of the ultra-clean cold-heat combined system of discharge in the utility model coke-oven plant.
Description of reference numerals
Waste heat boiler 1
Boiler smoke import 11
Boiler flue gas outlet 12
Boiler low-temperature receiver import 13
Boiler low-temperature receiver outlet 14
Absorption tower 2
Adsorption tower smoke import 21
Adsorption tower smoke outlet 22
Absorption tower solution inlet port 23
Absorption tower taphole 24
Absorption tower low-temperature receiver import 25
Absorption tower low-temperature receiver outlet 26
Regenerator 3
Regenerator solution inlet port 31
Regenerator taphole 32
Indirect steam outlet 33
Regenerator heat source import 34
Regenerator thermal source outlet 35
Absorption refrigeration unit 4
Refrigeration unit heat source import 41
Refrigeration unit thermal source outlet 42
Refrigeration unit chilled water import 43
The First Heat Exchanger 5 of refrigeration unit chilled water outlet 44
First gas approach 51
First exhanst gas outlet 52
First low-temperature receiver import 53
First low-temperature receiver outlet 54
Second heat exchanger 6
Second low-temperature receiver import 61
Second low-temperature receiver outlet 62
Secondary Heat Source import 63
Secondary Heat Source outlet 64
3rd heat exchanger 7
3rd low-temperature receiver import 71
3rd low-temperature receiver outlet 72
3rd heat source import 73
3rd thermal source outlet 74
4th heat exchanger 8
4th low-temperature receiver import 81
4th low-temperature receiver outlet 82
4th heat source import 83
4th thermal source outlet 84
Denitrification apparatus 9
Denitration gas approach 91
Denitration exhanst gas outlet 92
Heater 10
Coke oven flue gas import 101
Coke oven flue gas outlet 102
Heating source import 103
Heating source outlet 104
Embodiment
The utility model is further illustrated below by the mode of embodiment, but is not therefore limited in the utility model
Among described scope of embodiments.
It is as shown in Figure 1 the ultra-clean cold-heat combined system of discharge in coke-oven plant provided by the utility model, including waste heat boiler
1st, absorption tower 2, regenerator 3, waste heat boiler 1 have boiler smoke import 11, boiler flue gas outlet 12, boiler low-temperature receiver import 13,
Boiler low-temperature receiver outlet 14, is connected, boiler is cold between boiler smoke import 11, boiler flue gas outlet 12 by boiler smoke pipeline
It is connected between source import 13, boiler low-temperature receiver outlet 14 by boiler low-temperature receiver pipeline, flue gas and boiler in boiler smoke pipeline
Working medium in low-temperature receiver pipeline carries out heat exchange；Absorption tower 2 has adsorption tower smoke import 21, adsorption tower smoke outlet 22, absorbed
Tower solution inlet port 23, absorption tower taphole 24, adsorption tower smoke import 21 are connected with boiler flue gas outlet 12, absorption tower cigarette
Gas import 21 is located at the bottom on absorption tower 2 and discharges the inside that flue gas enters absorption tower 2, and adsorption tower smoke outlet 22 is positioned at absorption
Flue gas is simultaneously discharged to outside in the top of tower 2, and absorption tower solution inlet port 23 is located at the top on absorption tower 2 and sprayed into absorption tower 2
Hygroscopic solution, absorption tower taphole 24 are located at the bottom on absorption tower 2 and discharge hygroscopic solution；Regenerator 3 has regenerator molten
Liquid import 31, regenerator taphole 32, indirect steam outlet 33, regenerator solution inlet port 31 and the phase of absorption tower taphole 24
Connection, regenerator taphole 32 are connected with absorption tower solution inlet port 23, and hygroscopic solution is heated in indirect steam outlet 33 to be steamed
The indirect steam discharge sent.
After waste heat boiler 1 is reclaimed the waste heat of coking kiln gas, flue gas enters in absorption tower 2, and the waste heat of flue gas passes
Pass the working medium in boiler low-temperature receiver pipeline, such as heat supply in winter water, annual boiler feed water, domestic water and industrial water etc..Cigarette
Gas enters in absorption tower 2 from adsorption tower smoke import 21, runs from bottom to top, with entering and from upper from absorption tower solution inlet port 23
The hygroscopic solution countercurrent heat-transfer mass transfer just to fall, hygroscopic solution play a part of depth dedusting, degassing colloidal sol.Flue gas is through absorption tower
The discharge system of exhanst gas outlet 22, the waste heat for the flue gas now discharged have been reclaimed and by hygroscopic solution deep purifying, realized
While ultra-clean discharge, waste heat recovery is also achieved.Hygroscopic solution absorbs the vapor in flue gas after flue gas, dense molten
Liquid is diluted as weak solution, and is flowed into from absorption tower taphole 24, regenerator solution inlet port 31 in regenerator 3.Weak solution exists
Heated in regenerator 3 and evaporate indirect steam, weak solution becomes concentrated solution again, and from regenerator taphole 32, absorb
Tower solution inlet port 23 enters in absorption tower 2, realizes the circulation of hygroscopic solution.
Finned tube-heat pipe waste heat boiler that waste heat boiler 1 is combined using finned tube and heat pipe, i.e., dew-point temperature with
On exchanged heat with finned tube and (once exchanged heat), the position of dew point corrosion temperature is easily occurring with heat pipe (secondary heat exchange), reasonably
Heat exchange design and wall temperature design, can improve the coefficient of heat transfer, while solve the problems, such as low-temperature dew point corrosion.
Before flue gas enters waste heat boiler 1, it is also necessary to carry out denitration process, therefore, also set up before waste heat boiler 1
Denitrification apparatus 9, flue gas are entered back into waste heat boiler 1 after first passing through the denitration of denitrification apparatus 9.Specifically, denitrification apparatus 9 has
Denitration gas approach 91, denitration exhanst gas outlet 92, denitration exhanst gas outlet 92 are connected with boiler smoke import 11, and flue gas is from denitration
Gas approach 91 enters in denitrification apparatus 9 and discharged from denitration exhanst gas outlet 92.
Flue gas need to reach higher temperature when carrying out denitration process, in order to ensure denitration effect, enter denitration in flue gas
Before device 9, need first to be heated in heater 10.Specifically, heater 10 includes coke oven flue gas import 101, coke oven cigarette
Gas outlet 102, heating source import 103, heating source outlet 104, pass through between coke oven flue gas import 101, coke oven flue gas outlet 102
Coke oven flue gas pipeline is connected, and is connected between heating source import 103, heating source outlet 104 by heating source pipeline, coke oven cigarette
Flue gas in feed channel carries out heat exchange, coke oven flue gas outlet 102 and denitration gas approach 91 with the working medium in heating source pipeline
It is connected.In order to save and comprehensively utilize, using coking furnace raw coke oven gas waste-heat flue gas, i.e. coking furnace raw coke oven gas is from heating
Source import 103 enters in heating source pipeline, and the discharge of heating source outlet 104, raw coke oven gas and coke oven flue gas in heating source pipeline
Flue gas in pipeline carries out heat exchange, and the temperature of flue gas is lifted.Heater 10 can be plate-fin heat exchanger, heat exchange of heat pipe or
Plate type heat exchanger etc..
Said system can set multiple heat exchangers in each position according to the actual requirements, such as in boiler flue gas outlet 12 and
Heat exchanger can be set between adsorption tower smoke import 21, one or more heat exchangers such as can be set at indirect steam outlet 33.
Heat exchanger can be plate-fin heat exchanger, heat exchange of heat pipe, plate type heat exchanger etc..
Sensible heat is only released into the flue gas in absorption tower 2, actually also has the latent heat of vaporization to reclaim in flue gas, is
Further raising waste heat recovery rate, heat exchange facilities can be set in absorption tower 2, the latent heat of flue gas is also reclaimed.Specifically
For, absorption tower 2 also has absorption tower low-temperature receiver import 25, absorption tower low-temperature receiver outlet 26, and absorption tower low-temperature receiver import 25, absorption tower are cold
It is connected between source outlet 26 by absorption tower low-temperature receiver pipeline, the working medium in the low-temperature receiver pipeline of absorption tower and the inside on absorption tower 2
Working medium carries out heat exchange.Except heat exchange facilities are set in absorption tower 2, also absorption tower low-temperature receiver can be exported 26 and be changed with one or more
Hot device is connected and heat exchange, realizes the comprehensive recovery of waste heat.
Meanwhile hygroscopic solution enters in regenerator 3, is also provided with heat exchange facilities in regenerator 3, makes to exchange heat through waste heat boiler 1
Caused steam enters in regenerator 3 and carries out heat exchange with the solution in regenerator 3 afterwards.Specifically, regenerator 3 also has
Regenerator heat source import 34, regenerator thermal source outlet 35, pass through between regenerator heat source import 34 and regenerator thermal source outlet 35
Regenerator thermal source pipeline is connected, and the working medium of the working medium in regenerator thermal source pipeline and the inside of regenerator 3 carries out heat exchange, then
Raw device heat source import 34 is connected with boiler low-temperature receiver outlet 14., can also be by regenerator heat except heat exchange facilities are set in regenerator 3
Source outlet 35 is connected with one or more heat exchangers and heat exchange, realizes the comprehensive recovery of waste heat.
The caused steam of waste heat boiler 1 has the regeneration thermal source that compared with high-grade, can be directly used as regenerator 3, therefore, will
Regenerator heat source import 34 is connected with boiler low-temperature receiver outlet 14, can further improve energy utilization rate.
The low-temperature receiver of heat exchanger is heated to can be used for heat supply in winter water, annual boiler feed water, domestic water and industrial water afterwards
Deng.In addition, heat exchanger can also be connected with absorption refrigeration unit 4, be mainly used in meeting the needs of plant area's cooling in summer.
A kind of concrete scheme of the combination of above-mentioned heat exchanger is as follows：
The ultra-clean cold-heat combined system of discharge in coke-oven plant includes First Heat Exchanger 5, the second heat exchanger 6, the 3rd heat exchanger 7, the
For one heat exchanger 5 between boiler flue gas outlet 12 and adsorption tower smoke import 21, First Heat Exchanger 5 has the first gas approach
51st, the first exhanst gas outlet 52, the first low-temperature receiver import 53, the first low-temperature receiver outlet 54, the first gas approach 51, the first exhanst gas outlet 52
Between be connected by the first flue, the first low-temperature receiver import 53, the first low-temperature receiver outlet 54 between pass through the first low-temperature receiver pipeline
Be connected, working medium in the flue gas and the first low-temperature receiver pipeline in the first flue carries out heat exchange, boiler flue gas outlet 12 with
First gas approach 51 is connected, and the first exhanst gas outlet 52 is connected with adsorption tower smoke import 21；
Second heat exchanger 6 has the second low-temperature receiver import 61, the second low-temperature receiver outlet 62, Secondary Heat Source import 63, Secondary Heat Source
Outlet 64, it is connected between the second low-temperature receiver import 61, the second low-temperature receiver outlet 62 by the second low-temperature receiver pipeline, Secondary Heat Source import
63rd, it is connected between Secondary Heat Source outlet 64 by Secondary Heat Source pipeline, the working medium in the second low-temperature receiver pipeline and Secondary Heat Source pipe
Working medium in road carries out heat exchange, and Secondary Heat Source import 63 is connected with indirect steam outlet 33, Secondary Heat Source outlet 64 with outside
Portion's pipeline is connected, and the second low-temperature receiver import 61, the second low-temperature receiver are interconnected between exporting the 62, first low-temperature receiver outlet 54；
There is 3rd heat exchanger 7 the 3rd low-temperature receiver import 71, the 3rd low-temperature receiver to export the 72, the 3rd heat source import 73, the 3rd thermal source
Outlet 74, it is connected between the 3rd low-temperature receiver import 71, the 3rd low-temperature receiver outlet 72 by the 3rd low-temperature receiver pipeline, the 3rd heat source import
73rd, it is connected between the 3rd thermal source outlet 74 by the 3rd thermal source pipeline, the working medium in the 3rd low-temperature receiver pipeline and the 3rd heat source tube
Working medium in road carries out heat exchange, and the 3rd heat source import 73 exports 33 with indirect steam and is connected, the 3rd thermal source outlet 74 and the
Two thermal source outlets 64 are connected, and the 3rd low-temperature receiver import 71, the 3rd low-temperature receiver outlet 72 are connected with exterior line.
By First Heat Exchanger 5, the second heat exchanger 6, the 3rd heat exchanger 7, boiler flue gas outlet 12, indirect steam are exported
The waste heat of 33 position has carried out comprehensive recovery, and is interconnected between heat exchanger, each heat exchanger is equipped with bypass, increases
The security of system.
4th heat exchanger 8 is used to reclaim absorption tower 2, the heat in regenerator 3, and there is the 4th heat exchanger 8 the 4th low-temperature receiver to enter
The 81, the 4th low-temperature receiver of mouth exports the 82, the 4th heat source import 83, the 4th thermal source outlet 84, the 4th low-temperature receiver import 81, the outlet of the 4th low-temperature receiver
It is connected between 82 by the 4th low-temperature receiver pipeline, passes through the 4th heat source tube between the 4th heat source import 83, the 4th thermal source outlet 84
Road is connected, and the working medium in the 4th low-temperature receiver pipeline carries out heat exchange, the 4th heat source import 83 with the working medium in the 4th thermal source pipeline
It is connected with regenerator thermal source outlet 35, the 4th thermal source outlet 84 is connected with exterior line, and the 4th low-temperature receiver import 81 is with absorbing
Tower low-temperature receiver outlet 26 is connected, and the 4th low-temperature receiver outlet 82 is connected with the 3rd low-temperature receiver import 71.
By First Heat Exchanger 5, the second heat exchanger 6, the 3rd heat exchanger 7, the 4th heat exchanger 8, high efficiente callback utilizes coke oven
Fume afterheat, other waste heats in factory are made full use of, no primary energy input, flue gas minimum discharge environmental benefit is realized, ensure that
Annual energy-conserving and environment-protective income.
Absorption refrigeration unit 4 is connected with wherein one or more above-mentioned heat exchangers, can meet plant area's cooling in summer
Demand.A kind of concrete scheme of absorption refrigeration unit 4 is as follows：Absorption refrigeration unit 4 have refrigeration unit heat source import 41,
Refrigeration unit thermal source outlet 42, refrigeration unit chilled water import 43, refrigeration unit chilled water outlet 44, refrigeration unit heat source import
41st, it is connected between refrigeration unit thermal source outlet 42 by refrigeration unit thermal source pipeline, refrigeration unit chilled water import 43, refrigeration
It is connected between unit chilled water outlet 44 by chilled water pipeline, the chilled water in chilled water pipeline and refrigeration unit heat source tube
Working medium in road carries out heat exchange, and refrigeration unit chilled water import 43, refrigeration unit chilled water outlet 44 are connected with external pipe
Connect, refrigeration unit heat source import 41 is connected with the first low-temperature receiver outlet 54, the low-temperature receiver import of refrigeration unit thermal source outlet 42 and first
53 are connected.Absorption refrigeration unit 4 is not limited in practice to be connected with First Heat Exchanger 5, the second heat exchanger 6, can also
It is connected with other heat exchangers.
The utility model is not limited to above-mentioned embodiment, no matter making any change in its shape or structure, all falls within
Within the scope of protection of the utility model.The scope of protection of the utility model is defined by the appended claims, this area
Technical staff on the premise of without departing substantially from principle of the present utility model and essence, a variety of changes can be made to these embodiments
More or change, but these changes and modification each fall within the scope of protection of the utility model.
Claims (11)
- A kind of 1. ultra-clean cold-heat combined system of discharge in coke-oven plant, it is characterised in that including：Denitrification apparatus (9), the denitrification apparatus (9) have denitration gas approach (91), denitration exhanst gas outlet (92), and flue gas is from institute Denitration gas approach (91) is stated to enter in the denitrification apparatus (9) and discharge from the denitration exhanst gas outlet (92)；Waste heat boiler (1), the waste heat boiler (1) have boiler smoke import (11), boiler flue gas outlet (12), boiler low-temperature receiver Import (13), boiler low-temperature receiver outlet (14), the boiler smoke import (11), boiler flue gas outlet pass through boiler smoke between (12) Feed channel is connected, and is connected between the boiler low-temperature receiver import (13), boiler low-temperature receiver outlet (14) by boiler low-temperature receiver pipeline, Flue gas in the boiler smoke pipeline carries out heat exchange, the boiler smoke import with the working medium in the boiler low-temperature receiver pipeline (11) it is connected with the denitration exhanst gas outlet (92)；Absorption tower (2), the absorption tower (2) have adsorption tower smoke import (21), adsorption tower smoke outlet (22), absorption tower molten Liquid import (23), absorption tower taphole (24), the adsorption tower smoke import (21) and the boiler flue gas outlet (12) phase Connection, the adsorption tower smoke import (21), which is located at the bottom on the absorption tower (2) and discharges the flue gas, enters the absorption The inside of tower (2), adsorption tower smoke outlet (22) are located at the top on the absorption tower (2) and discharge the flue gas to outer Portion, the absorption tower solution inlet port (23) are located at the top on the absorption tower (2) and molten to injection moisture absorption in the absorption tower (2) Liquid, the absorption tower taphole (24) are located at the bottom on the absorption tower (2) and discharge the hygroscopic solution；Regenerator (3), the regenerator (3) have regenerator solution inlet port (31), regenerator taphole (32), indirect steam Export (33), the regenerator solution inlet port (31) is connected with the absorption tower taphole (24), the regenerator solution Outlet (32) is connected with the absorption tower solution inlet port (23), and the indirect steam outlet (33) heats the hygroscopic solution The indirect steam discharge evaporated.
- 2. the ultra-clean cold-heat combined system of discharge in coke-oven plant as claimed in claim 1, it is characterised in that：The ultra-clean row in coke-oven plant Letting cool hot co-generation system also includes at least one heat exchanger, the boiler flue gas outlet (12) and/or indirect steam outlet (33) be connected simultaneously heat exchange with least one heat exchanger.
- 3. the ultra-clean cold-heat combined system of discharge in coke-oven plant as claimed in claim 1, it is characterised in that：The absorption tower (2) is also With absorption tower low-temperature receiver import (25), absorption tower low-temperature receiver outlet (26), the absorption tower low-temperature receiver import (25), absorption tower low-temperature receiver go out It is connected between mouth (26) by absorption tower low-temperature receiver pipeline, the working medium in the absorption tower low-temperature receiver pipeline and the absorption tower (2) Inside working medium carry out heat exchange.
- 4. the ultra-clean cold-heat combined system of discharge in coke-oven plant as claimed in claim 3, it is characterised in that：The absorption tower low-temperature receiver goes out Mouth (26) is connected with least one heat exchanger and heat exchange.
- 5. the ultra-clean cold-heat combined system of discharge in coke-oven plant as claimed in claim 1, it is characterised in that：The regenerator (3) is also With regenerator heat source import (34), regenerator thermal source outlet (35), the regenerator heat source import (34) and the regenerator It is connected between thermal source outlet (35) by regenerator thermal source pipeline, the working medium in the regenerator thermal source pipeline and the regeneration The working medium of the inside of device (3) carries out heat exchange, and the regenerator heat source import (34) exports (14) with the boiler low-temperature receiver and is connected It is logical.
- 6. the ultra-clean cold-heat combined system of discharge in coke-oven plant as claimed in claim 5, it is characterised in that：The regenerator thermal source goes out Mouth (35) is connected with least one heat exchanger and heat exchange.
- 7. the ultra-clean cold-heat combined system of discharge in coke-oven plant as described in claim 2,4 or 6, it is characterised in that：The coke-oven plant The ultra-clean cold-heat combined system of discharge also includes absorption refrigeration unit (4), the absorption refrigeration unit (4) and at least one institute Heat exchanger is stated to be connected and heat exchange.
- 8. the ultra-clean cold-heat combined system of discharge in coke-oven plant as claimed in claim 1, it is characterised in that the ultra-clean row in coke-oven plant Letting cool hot co-generation system also includes：First Heat Exchanger (5), the First Heat Exchanger (5) are located at the boiler flue gas outlet (12) and entered with the adsorption tower smoke Between mouth (21), there is the First Heat Exchanger (5) the first gas approach (51), the first exhanst gas outlet (52), the first low-temperature receiver to enter Mouth (53), the first low-temperature receiver outlet (54), first gas approach (51), the first exhanst gas outlet pass through the first flue gas between (52) Pipeline is connected, and is connected between the first low-temperature receiver import (53), the first low-temperature receiver outlet (54) by the first low-temperature receiver pipeline, institute The flue gas stated in the first flue carries out heat exchange, the boiler flue gas outlet with the working medium in the first low-temperature receiver pipeline (12) it is connected with first gas approach (51), first exhanst gas outlet (52) and the adsorption tower smoke import (21) It is connected；Second heat exchanger (6), second heat exchanger (6) have the second low-temperature receiver import (61), the second low-temperature receiver outlet (62), second Heat source import (63), Secondary Heat Source outlet (64), by the between the second low-temperature receiver import (61), the second low-temperature receiver outlet (62) Two low-temperature receiver pipelines are connected, and pass through Secondary Heat Source pipeline phase between the Secondary Heat Source import (63), Secondary Heat Source outlet (64) Connect, the working medium in the second low-temperature receiver pipeline carries out heat exchange, second heat with the working medium in the Secondary Heat Source pipeline Source import (63) is connected with indirect steam outlet (33), and the Secondary Heat Source outlet (64) is connected with exterior line, It is interconnected between the second low-temperature receiver import (61), the second low-temperature receiver outlet (62), the first low-temperature receiver outlet (54)；3rd heat exchanger (7), the 3rd heat exchanger (7) have the 3rd low-temperature receiver import (71), the 3rd low-temperature receiver outlet (72), the 3rd Heat source import (73), the 3rd thermal source outlet (74), by the between the 3rd low-temperature receiver import (71), the 3rd low-temperature receiver outlet (72) Three low-temperature receiver pipelines are connected, and pass through the 3rd thermal source pipeline phase between the 3rd heat source import (73), the 3rd thermal source outlet (74) Connect, the working medium in the 3rd low-temperature receiver pipeline carries out heat exchange, the 3rd heat with the working medium in the 3rd thermal source pipeline Source import (73) is connected with indirect steam outlet (33), and the 3rd thermal source outlet (74) exports with the Secondary Heat Source (64) it is connected, the 3rd low-temperature receiver import (71), the 3rd low-temperature receiver outlet (72) are connected with the exterior line.
- 9. the ultra-clean cold-heat combined system of discharge in coke-oven plant as claimed in claim 8, it is characterised in that：The absorption tower (2) also has absorption tower low-temperature receiver import (25), absorption tower low-temperature receiver outlet (26), and the absorption tower low-temperature receiver enters It is connected between mouth (25), absorption tower low-temperature receiver outlet (26) by absorption tower low-temperature receiver pipeline, the work of the absorption tower low-temperature receiver pipeline Matter and the working medium of the inside on the absorption tower (2) carry out heat exchange；The regenerator (3) also has regenerator heat source import (34), regenerator thermal source outlet (35), and the regenerator thermal source enters It is connected between mouth (34) and the regenerator thermal source outlet (35) by regenerator thermal source pipeline, the regenerator thermal source pipeline Interior working medium and the working medium of the inside of the regenerator (3) carry out heat exchange, the regenerator heat source import (34) and the pot Stove low-temperature receiver outlet (14) is connected；The ultra-clean cold-heat combined system of discharge in the coke-oven plant also includes the 4th heat exchanger (8), and the 4th heat exchanger (8) is with the Four low-temperature receiver imports (81), the 4th low-temperature receiver outlet (82), the 4th heat source import (83), the 4th thermal source outlet (84), the described 4th is cold It is connected between source import (81), the 4th low-temperature receiver outlet (82) by the 4th low-temperature receiver pipeline, the 4th heat source import (83), the Four thermal source outlets are connected between (84) by the 4th thermal source pipeline, the working medium in the 4th low-temperature receiver pipeline and the described 4th heat Working medium in source capsule road carries out heat exchange, and the 4th heat source import (83) is connected with the regenerator thermal source outlet (35), 4th thermal source outlet (84) is connected with the exterior line, the 4th low-temperature receiver import (81) and the absorption tower low-temperature receiver Outlet (26) is connected, and the 4th low-temperature receiver outlet (82) is connected with the 3rd low-temperature receiver import (71).
- 10. the ultra-clean cold-heat combined system of discharge in coke-oven plant as claimed in claim 8, it is characterised in that：The coke-oven plant is ultra-clean Discharging cold-heat combined system also includes absorption refrigeration unit (4), and the absorption refrigeration unit (4) has refrigeration unit thermal source Import (41), refrigeration unit thermal source outlet (42), refrigeration unit chilled water import (43), refrigeration unit chilled water outlet (44), It is connected between the refrigeration unit heat source import (41), refrigeration unit thermal source outlet (42) by refrigeration unit thermal source pipeline, The refrigeration unit chilled water import (43), refrigeration unit chilled water outlet are connected between (44) by chilled water pipeline, institute The chilled water stated in chilled water pipeline carries out heat exchange with the working medium in the refrigeration unit thermal source pipeline, and the refrigeration unit is cold Freeze water inlet (43), refrigeration unit chilled water outlet (44) is connected with the external pipe, the refrigeration unit heat source import (41) it is connected with first low-temperature receiver outlet (54), the refrigeration unit thermal source outlet (42) and the first low-temperature receiver import (53) it is connected.
- 11. the ultra-clean cold-heat combined system of discharge in coke-oven plant as claimed in claim 1, it is characterised in that：The coke-oven plant is ultra-clean Discharging cold-heat combined system also includes heater (10), and the heater (10) includes coke oven flue gas import (101), coke oven flue gas Export (102), heating source import (103), heating source outlet (104), the coke oven flue gas import (101), coke oven flue gas outlet (102) it is connected between by coke oven flue gas pipeline, by adding between the heating source import (103), heating source outlet (104) Thermal source pipeline is connected, and the flue gas in the coke oven flue gas pipeline carries out heat exchange, institute with the working medium in the heating source pipeline Coke oven flue gas outlet (102) is stated with the denitration gas approach (91) to be connected.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131656A (en) * | 2017-07-10 | 2018-06-08 | 昊姆（上海）节能科技有限公司 | The ultra-clean cold-heat combined system of discharge in coke-oven plant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131656A (en) * | 2017-07-10 | 2018-06-08 | 昊姆（上海）节能科技有限公司 | The ultra-clean cold-heat combined system of discharge in coke-oven plant |
| CN108131656B (en) * | 2017-07-10 | 2024-03-15 | 昊姆（上海）节能科技有限公司 | Ultra-clean emission cold and hot co-production system of coking plant |
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