CN205635512U - Waste heat utilization , cooling and condensation combination system to high temperature gasification gas - Google Patents
Waste heat utilization , cooling and condensation combination system to high temperature gasification gas Download PDFInfo
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- CN205635512U CN205635512U CN201620260940.9U CN201620260940U CN205635512U CN 205635512 U CN205635512 U CN 205635512U CN 201620260940 U CN201620260940 U CN 201620260940U CN 205635512 U CN205635512 U CN 205635512U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The utility model discloses waste heat utilization, cooling and condensation combination system to high temperature gasification gas relates to the jointly field of retrieving of coal gasification system coal gas waste heat, condensate. Spray the water circulating system of shape air water sediment separation including high temperature gasification gas's waste heat utilization system, medium temperature cooling water circulation system, low temperature, this three system mixed heat exchanger of low temperature that all shares, the interior upper portion of the mixed heat exchanger of this low temperature is equipped with a set of high temperature waste heat utilization gyrotron, and the lower part is equipped with a set of medium temperature cooling water gyrotron, is equipped with still that condenser tube is spouted at the top and condenser tube is spouted at the middle part. The advantage: can practice thrift boiler water's the heating energy, make these cooling waters can follow compound interest usefulness, no longer the waste discharge no longer has the water pollution, 35 DEG C of cooling water input circulating water pond reuse, reduces the waste discharge, reduces the water pollution.
Description
Technical field
This utility model relates to gasification system coal gas waste heat, condensed fluid combined recovery field, specially gasification gas temperature
220 DEG C～45 DEG C of interval waste heats, condensation association systems.
Background technology
In gasification system, coal gas usually contains a large amount of water vapour 10%～20% (mass ratio) and a small amount of flying dust (grain
Footpath: 40 μm-100 μm, accounts for 90%；Other≤40 μm), when coal gas is down to 45 DEG C by 220 DEG C, the steaming in coal gas
A large amount of evaporation latent heats are released in vapour condensation；Flying dust will adsorb in condensed fluid simultaneously, so will result in finned tube exchanger wing
Sheet fouling.The most common coal gas cooling generally uses washing cooling, and waste heat is the most disposable, and this mode exists
Following drawback:
1. because containing a large amount of steam in coal gas, and temperature is down to 45 DEG C by 220 DEG C, in this process steam condensation
Substantial amounts of evaporation latent heat will be released, therefore use the mode of washing to lower the temperature and will be unable to this part of waste heat to reclaim.
2. although gas liquor is steam condensate, but because with dust, washing cooling can cause condensed fluid to return
Receiving and utilize, sewage quantity is big, is the primary pollution source of Coal Chemical Industry.
3. condensed fluid does not reclaim and will increase enterprise investment, increases operation cost.
Summary of the invention
This utility model provides bootstrap system to high-temperature gasification coal gas, cooling recirculation system and condenser system, and these are multiple
The association system of system.
In structure of the present utility model, the annexation of each equipment and each system, the flow path of fluid, temperature change are:
To the UTILIZATION OF VESIDUAL HEAT IN of high-temperature gasification coal gas, cool down and condense association system, it is characterised in that: include three system groups
Becoming association system, these three systems are, first is the bootstrap system of high-temperature gasification coal gas；Second is middle Wen Leng
But water circulation system；3rd is the water circulation system that low temperature spray shape air water slag separates；These three systems all share low temperature
Mixed heat exchanger 1, the structure of this low-temperature mixed heat exchanger 1 is as follows:
The structure of low-temperature mixed heat exchanger 1: the structure of low-temperature mixed heat exchanger 1 includes a shell of tank 20, this container
The above of shell 20 is communicated with high temperature dust and gas mixing tube 21, is communicated with the mixing of low temperature air water slag below this shell of tank 20
Pipe 22；
Top in this low-temperature mixed heat exchanger 1 is provided with one group of high-temperature residual heat and utilizes gyrotron 23, and high-temperature residual heat utilizes convolution
The desalted water import 24 of pipe 23 utilizes the desalted water of gyrotron 23 at position, shell of tank 20 upper middle, high-temperature residual heat
Outlet 25 is at shell of tank 20 upward position；Bottom in this low-temperature mixed heat exchanger 1 is provided with one group of middle temperature cooling water and returns
Coil 26, cooling water inlet 27 position below shell of tank 20 of middle temperature cooling water gyrotron 26, middle temperature cooling water
The coolant outlet 28 of gyrotron 26 is at position, shell of tank 20 lower middle；
Top in this low-temperature mixed heat exchanger 1 is provided with one group of top spray cooling water pipe 29, this low-temperature mixed heat exchanger 1
Interior middle position is provided with spray cooling water pipe 30 in the middle part of in the of a group, and middle part spray cooling water pipe 30 is positioned at desalted water import 24 and cooling
Middle part between water out 28；
The attachment structure relation of each parts in three systems of narration separately below:
The bootstrap system of first high-temperature gasification coal gas: low-temperature mixed heat exchanger 1 high-temperature residual heat utilizes gyrotron 23
Desalted water outlet 25 by the inlet communication of pipeline and oxygen-eliminating device 4, the outlet of oxygen-eliminating device 4 is by pipeline and boiler 11
Desalted water inlet communication；
In this bootstrap system, the desalted water import 24 at position, low temperature desalination water from container shell 20 upper middle is entered
Entering, in utilizing gyrotron 23 at high-temperature residual heat, desalted water accepts high-temperature residual heat and utilizes 220 DEG C outside gyrotron 23
The heat of high-temperature gasification coal gas, after desalted water is heated to 95 DEG C, from desalted water outlet 25 outflow, is inputted by pipeline
Oxygen-eliminating device 4, in oxygen-eliminating device 4, after high temperature desalted water is processed by deoxygenation, become boiler 11 can high temperature desalted water,
Save power consumption desalted water being heated to 90 DEG C of-95 DEG C of high temperature, the temperature of 220 DEG C of high-temperature gasification coal gas in reducing again.
Second middle temperature cooling water recirculation system: also include circulating water pool 5 and the combination unit of cooling tower 7, cooling tower 7
Being positioned at above circulating water pool 5, the bottom of cooling tower 7 communicates with the upper opening of circulating water pool 5；Low-temperature mixed heat exchange
The coolant outlet 28 of device 1 middle temperature cooling water gyrotron 26 is communicated by the import of pipeline with cooling tower 7, low-temperature mixed
The cooling water inlet 27 of heat exchanger 1 middle temperature cooling water gyrotron 26 is by water circulating pump 6 and pipeline and circulating water pool 5
Water out communicates；
It is positioned at the high-temperature residual heat of bootstrap system utilizes back owing to the middle temperature of cooling water recirculation system cools down water gyrotron 26
Coil 23 lower position, 220 DEG C of high-temperature gasification coal gas flow from the top down, and high-temperature gasification coal gas utilizes through high-temperature residual heat
After gyrotron 23, gasification gas has dropped down to 100 DEG C in the temperature of middle temperature cooling water gyrotron 26 upward position, 100 DEG C
Gasification gas 35 DEG C of coolings in middle temperature cooling water gyrotron 26 after water are heated to 65 DEG C, the cooling water of 65 DEG C is therefrom
The coolant outlet 28 of temperature cooling water gyrotron 26 flows out, and flows to cooling tower 7 by pipeline, cooling tower 7 65 DEG C
After cooling water temperature to 35 DEG C, 35 DEG C of cooling water flow in circulating water pool 5 stand-by.
The water circulation system that 3rd low temperature spray shape air water slag separates: also include drop catcher 8, condensed fluid collecting pit 9,
Backwash filter 10 and circulating water pool 5；The outlet of circulating water pool 5 by water circulating pump 6 and pipeline respectively with low temperature
The top spray cooling water pipe 29 of mixed heat exchanger 1 connects with middle part spray cooling water pipe 30, low-temperature mixed heat exchanger 1 container
Shell 20 low temperature air water slag mixing tube 22 below is unified import by pipeline with the air water slag of drop catcher 8 and is connected, and catches
The grain slag uniform outlet dripping device 8 is unified import by the grain slag of pipeline with condensed fluid collecting pit 9 and is connected, drop catcher 8
Also have a gasification gas outlet cooled down, the grain slag uniform outlet of condensed fluid collecting pit 9 and backwash filter 10
Grain slag unify import and be connected, the water out of backwash filter 10 is connected with the water inlet of circulating water pool 5；
In the water circulation system that this air water slag separates, in top spray cooling water pipe 29 and middle part spray cooling water pipe 30
35 DEG C cooling the water tops in low-temperature mixed heat exchanger 1 respectively and middle part ejection, with low-temperature mixed heat exchanger 1 container outside
The 220 DEG C of high-temperature gasification coal gas entered in shell 20 high temperature dust and gas mixing tube 21 above are mixed into air water slag mixture, and
220 DEG C of high-temperature gasification coal gas are lowered the temperature by 35 DEG C of cooling water, and 35 DEG C of cooling water also utilize gyrotron 23 and middle temperature to high-temperature residual heat
The pipe outer wall drip washing of cooling water gyrotron 26, prevents the dirt slag in gasification gas at long-pending knot at this pipe outer wall；These air waters
It has been 35 DEG C of air water slag mixture that slag mixture drops to the bottom in low-temperature mixed heat exchanger 1,35 DEG C of air water slag mixture
Flowing into drop catcher 8 from low temperature air water slag mixing tube 22, in drop catcher 8, air water slag mixture is separated without grain slag
Pure coal gas, these pure coal gas are discharged from the above entrance of drop catcher 8, are used as gas combustion, at drop catcher
In 8, the grain slag mixture that air water slag mixture is separated deposits wait by discharge of pipes in condensed fluid collecting pit 9
Process；When the grain slag mixture in condensed fluid collecting pit 9 run up to a certain amount of after, by pipeline grain slag mixture input
Backwash filter 10,10 grain slag mixture of backwash filter are separated into cooling water and dirt slag, backwash filter
10 isolated cooling water input circulating water pool 5 by pipeline, and backwash filter 10 isolated dirt slag is as refuse
Give off native system.
Glossary explanation of the present utility model:
1, oxygen-eliminating device: oxygen-eliminating device is one of boiler and heating system key equipment, effect is the oxygen and other removing and being dissolved in feedwater
Gas, anti-block and other gas are to reducing boiler feed pipe, economizer and the corrosion of other auxiliary device.Reference standard
Electricity Department GB1576-2001 power station pressure type oxygen-eliminating device safety and technical supervision code.
2, backwash filter: backwash filter is a kind of to utilize filter screen directly to intercept the impurity in water, removes water body and suspends
Thing, particulate matter, reduce turbidity, purify water, and reduces system dirt, bacterium algae, corrosion etc. and produces, purifying water and
The precision equipment that other equipment of protection system normally work.Water is entered self-cleaning filter body by water inlet, due to intelligence
Changing PLC, PAC design, system can identify that impurity deposits degree, to blowdown valve signal automatic pollution discharge automatically.Backwashed
Filter is equipment commercially.
3, desalted water: be to remove strong electrolyte, or strong electrolyte is reduced to a certain degree of water.Desalted water is boiler available water.
4, cooling water: available industry and domestic two kinds can with water.
5, cooling tower: cooling tower is to use water as circulating coolant, absorbs heat dissipation in air, with fall from a system
The device of low water temperature；It is cold is to utilize water to carry out cold and hot exchange with air flowing after contacting to produce steam, and steam volatilization is taken away
Heat reaches the principles such as evaporative heat loss, convection heat transfer' heat-transfer by convection and radiant heat transfer to disperse the waste heat produced in industrial or refrigeration air-conditioner
Reduce the evaporating radiator of water temperature, therefore named for cooling tower.Reference standard National Standard of the People's Republic of China: machine
Tool aerating and cooling tower production engineering specifications GB/T50392-2006.
6, drop catcher: also referred to as water smoke drop catcher, is to separate a kind of equipment of contained water smoke composition in gas.It is mainly used in coal gas
Water smoke separate, blast furnace gas, coke-stove gas, and producer gas etc..Drop catcher is equipment commercially.
Advantage of the present utility model:
This technology uses low-temperature mixed heat exchanger that 220 DEG C of high-temperature gasification coal gas are carried out in low-temperature mixed heat exchanger three kinds of sides
Formula is lowered the temperature, and each advantage is as follows:
First is to flow through high-temperature residual heat with desalted water to utilize in gyrotron, and 220 DEG C high-temperature gasification coal gas outer to pipe carry out high temperature
Duan Jiangwen, it is thus achieved that the desalted water of 95 DEG C, as boiler feed water, has saved the heating energy source to boiler feed water.
Second is to flow through in middle temperature cooling water gyrotron with 35 DEG C of cooling water, has dropped down to 100 DEG C of middle temperature gasification gases to pipe is outer
Lower the temperature again, be cooled to 35 DEG C of cooling water with cooling tower again being heated to 65 DEG C of cooling water, make these cooling water can be from
Multiple utilization, no longer waste discharge, no longer there is water to pollute.
3rd is directly 220 DEG C of high-temperature gasification coal gas above low-temperature mixed heat exchanger to be carried out high temperature section with 35 DEG C of cooling water
Cooling, and carry out middle-temperature section fall with 35 DEG C of cooling water directly temperature gasification gases middle to 100 DEG C above low-temperature mixed heat exchanger
The 45 DEG C of low temperature gasification coal gas that can discharge low-temperature mixed heat exchanger, both 45 DEG C of air water slag mixture, drop in temperature.And use
Drop catcher takes out the available coal gas discharged that low temperature is pure, remaining 45 DEG C of grain slags mixing from 45 DEG C of air water slag mixture
Thing backwash filter isolates 35 DEG C of cooling water, 35 DEG C of cooling water input circulating water pool recyclings, reduces row
Put waste water, reduce water and pollute.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Figure 1 is low-temperature mixed heat exchanger, 2 is desalted water finned tube exchanger, 3 is recirculated water light heat exchange of heat pipe, 4 is deoxygenation
Device, 5 be circulating water pool, 6 be water circulating pump, 7 be cooling tower, 8 be drop catcher, 9 be condensed fluid collecting pit, 10 be
Backwash filter, 11 be boiler, 20 be shell of tank, 21 be high temperature dust and gas mixing tube, 22 be low temperature air water slag mix
Close pipe, 23 be high-temperature residual heat utilize gyrotron, 24 be desalted water import, 25 be desalted water outlet, 26 be middle temperature cool down
Water gyrotron, 27 be cooling water inlet, 28 be coolant outlet, 29 be top spray cooling water pipe, 30 be middle part spray cold
But water pipe.
Detailed description of the invention
Embodiment 1, to the UTILIZATION OF VESIDUAL HEAT IN of high-temperature gasification coal gas, cool down and condense association system
Such as Fig. 1, to the UTILIZATION OF VESIDUAL HEAT IN of high-temperature gasification coal gas, cool down and condense association system, combining including three systems compositions and be
System, these three systems are, first is the bootstrap system of high-temperature gasification coal gas；Second is that middle temperature is cooling water circulation
System；3rd is the water circulation system that low temperature spray shape air water slag separates；These three systems all share low-temperature mixed heat exchange
Device 1, the structure of this low-temperature mixed heat exchanger 1 is as follows:
The structure of low-temperature mixed heat exchanger 1: the structure of low-temperature mixed heat exchanger 1 includes a shell of tank 20, this container
The above of shell 20 is communicated with high temperature dust and gas mixing tube 21, is communicated with the mixing of low temperature air water slag below this shell of tank 20
Pipe 22；
Top in this low-temperature mixed heat exchanger 1 is provided with one group of high-temperature residual heat and utilizes gyrotron 23, and high-temperature residual heat utilizes convolution
The desalted water import 24 of pipe 23 utilizes the desalted water of gyrotron 23 at position, shell of tank 20 upper middle, high-temperature residual heat
Outlet 25 is at shell of tank 20 upward position；Bottom in this low-temperature mixed heat exchanger 1 is provided with one group of middle temperature cooling water and returns
Coil 26, cooling water inlet 27 position below shell of tank 20 of middle temperature cooling water gyrotron 26, middle temperature cooling water
The coolant outlet 28 of gyrotron 26 is at position, shell of tank 20 lower middle；
Top in this low-temperature mixed heat exchanger 1 is provided with one group of top spray cooling water pipe 29, this low-temperature mixed heat exchanger 1
Interior middle position is provided with spray cooling water pipe 30 in the middle part of in the of a group, and middle part spray cooling water pipe 30 is positioned at desalted water import 24 and cooling
Middle part between water out 28；
The attachment structure relation of each parts in three systems of narration separately below:
The bootstrap system of first high-temperature gasification coal gas: low-temperature mixed heat exchanger 1 high-temperature residual heat utilizes gyrotron 23
Desalted water outlet 25 by the inlet communication of pipeline and oxygen-eliminating device 4, the outlet of oxygen-eliminating device 4 is by pipeline and boiler 11
Desalted water inlet communication；
Second middle temperature cooling water recirculation system: also include circulating water pool 5 and the combination unit of cooling tower 7, cooling tower 7
Being positioned at above circulating water pool 5, the bottom of cooling tower 7 communicates with the upper opening of circulating water pool 5；Low-temperature mixed heat exchange
The coolant outlet 28 of device 1 middle temperature cooling water gyrotron 26 is communicated by the import of pipeline with cooling tower 7, low-temperature mixed
The cooling water inlet 27 of heat exchanger 1 middle temperature cooling water gyrotron 26 is by water circulating pump 6 and pipeline and circulating water pool 5
Water out communicates；
The water circulation system that 3rd low temperature spray shape air water slag separates: also include drop catcher 8, condensed fluid collecting pit 9,
Backwash filter 10 and circulating water pool 5；The outlet of circulating water pool 5 by water circulating pump 6 and pipeline respectively with low temperature
The top spray cooling water pipe 29 of mixed heat exchanger 1 connects with middle part spray cooling water pipe 30, low-temperature mixed heat exchanger 1 container
Shell 20 low temperature air water slag mixing tube 22 below is unified import by pipeline with the air water slag of drop catcher 8 and is connected, and catches
The grain slag uniform outlet dripping device 8 is unified import by the grain slag of pipeline with condensed fluid collecting pit 9 and is connected, drop catcher 8
Also have a gasification gas outlet cooled down, the grain slag uniform outlet of condensed fluid collecting pit 9 and backwash filter 10
Grain slag unify import and be connected, the water out of backwash filter 10 is connected with the water inlet of circulating water pool 5.
Claims (1)
1. pair high-temperature gasification coal gas UTILIZATION OF VESIDUAL HEAT IN, cool down and condense association system, it is characterised in that: include three systems composition
Association system, these three systems are, first is the bootstrap system of high-temperature gasification coal gas；Second is the cooling of middle temperature
Water circulation system；3rd is the water circulation system that low temperature spray shape air water slag separates；These three systems all share low temperature and mix
Closing heat exchanger (1), the structure of this low-temperature mixed heat exchanger (1) is as follows:
The structure of low-temperature mixed heat exchanger (1): the structure of low-temperature mixed heat exchanger (1) includes a shell of tank (20),
Above high temperature dust and gas mixing tube (21) that is communicated with of this shell of tank (20), this shell of tank is communicated with below (20)
Low temperature air water slag mixing tube (22)；
Top in this low-temperature mixed heat exchanger (1) is provided with one group of high-temperature residual heat and utilizes gyrotron (23), high-temperature residual heat profit
With the desalted water import (24) of gyrotron (23) at shell of tank (20) position, upper middle, high-temperature residual heat utilizes back
Desalted water outlet (25) of coil (23) is at shell of tank (20) upward position；In this low-temperature mixed heat exchanger (1)
Bottom be provided with one group of middle temperature cooling water gyrotron (26), middle temperature cools down the cooling water inlet (27) of water gyrotron (26)
At shell of tank (20) position below, the coolant outlet (28) of middle temperature cooling water gyrotron (26) is at shell of tank
(20) position, lower middle；
Top in this low-temperature mixed heat exchanger (1) is provided with one group of top spray cooling water pipe (29), this low-temperature mixed heat exchange
Middle position in device (1) is provided with in the middle part of in the of one group sprays cooling water pipe (30), and middle part spray cooling water pipe (30) is positioned at desalted water
Middle part between import (24) and coolant outlet (28)；
The attachment structure relation of each parts in three systems of narration separately below:
The bootstrap system of first high-temperature gasification coal gas: low-temperature mixed heat exchanger (1) high-temperature residual heat utilizes gyrotron (23)
Inlet communication by pipeline and oxygen-eliminating device (4) of desalted water outlet (25), pipeline is passed through in the outlet of oxygen-eliminating device (4)
Desalted water inlet communication with boiler (11)；
Second middle temperature cooling water recirculation system: also include circulating water pool (5) and the combination unit of cooling tower (7), cold
But tower (7) is positioned at above circulating water pool (5), the bottom of cooling tower (7) and the upper opening of circulating water pool (5)
Communicate；The coolant outlet (28) of low-temperature mixed heat exchanger (1) middle temperature cooling water gyrotron (26) passes through pipeline with cold
But the import of tower (7) communicates, the cooling water inlet (27) of low-temperature mixed heat exchanger (1) middle temperature cooling water gyrotron (26)
Communicated with the water out of circulating water pool (5) by water circulating pump (6) and pipeline；
The water circulation system that 3rd low temperature spray shape air water slag separates: also include drop catcher (8), condensed fluid collecting pit (9),
Backwash filter (10) and circulating water pool (5)；The outlet of circulating water pool (5) is by water circulating pump (6) and pipe
Road sprays cooling water pipe (29) with the top of low-temperature mixed heat exchanger (1) respectively and middle part spray cooling water pipe (30) connects,
Low-temperature mixed heat exchanger (1) shell of tank (20) low temperature air water slag mixing tube (22) below passes through pipeline and drop catcher
(8) air water slag is unified import and is connected, and the grain slag uniform outlet of drop catcher (8) is by pipeline and condensed fluid collecting pit
(9) grain slag is unified import and is connected, and the gasification gas cooled down that also has of drop catcher (8) exports, condensed fluid
The grain slag uniform outlet of collecting pit (9) is unified import with the grain slag of backwash filter (10) and is connected, backwash filter
The water out of device (10) is connected with the water inlet of circulating water pool (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620260940.9U CN205635512U (en) | 2016-03-25 | 2016-03-25 | Waste heat utilization , cooling and condensation combination system to high temperature gasification gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620260940.9U CN205635512U (en) | 2016-03-25 | 2016-03-25 | Waste heat utilization , cooling and condensation combination system to high temperature gasification gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205635512U true CN205635512U (en) | 2016-10-12 |
Family
ID=57065974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620260940.9U Expired - Fee Related CN205635512U (en) | 2016-03-25 | 2016-03-25 | Waste heat utilization , cooling and condensation combination system to high temperature gasification gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205635512U (en) |
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2016
- 2016-03-25 CN CN201620260940.9U patent/CN205635512U/en not_active Expired - Fee Related
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 Termination date: 20200325 |
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| CF01 | Termination of patent right due to non-payment of annual fee |