CN206488263U - The coal gas waste heat boiler water system of output coal gas temperature after controllable cooling - Google Patents
The coal gas waste heat boiler water system of output coal gas temperature after controllable cooling Download PDFInfo
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- CN206488263U CN206488263U CN201621496725.5U CN201621496725U CN206488263U CN 206488263 U CN206488263 U CN 206488263U CN 201621496725 U CN201621496725 U CN 201621496725U CN 206488263 U CN206488263 U CN 206488263U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
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- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The coal gas waste heat boiler water system of output coal gas temperature is that output coal gas temperature is adjustably controlled and supporting UTILIZATION OF VESIDUAL HEAT IN is in the feed system of boiler Applicable temperature water after the cooling of the utility model controllable.Including desalination water heating system, and cooling coal gas temperature stable temperature range cooling gas temperature systems stabilisation；Cooling gas temperature systems stabilisation includes water pipe, Automatic reflux control valve, the horizontal storage tank of oxygen-eliminating device bottom between the heat reclamation device connected with water pipe according to order and feedwater valve group.Advantage：One is to use cold-gas temperature detection means and Automatic reflux control valve, and cooling coal gas [low temperature coal gas] temperature stabilization that automatically adjusted with the flow of the demineralized water of control backflow is at 170 DEG C or so；Two are adjusted manually with heat reclamation device bypass control valve (BCV), also make coal gas [low temperature coal gas] temperature stabilization at 170 DEG C or so.
Description
Technical field
The utility model belongs to moisture vapor high-temperature gas residual neat recovering system technical field, more particularly to a kind of to be somebody's turn to do
The output gas temperature of residual neat recovering system is adjustably controlled, and obtains the preference temperature desalination water supply system of boiler.
Background technology
The high-temperature flue gas that the coal gas of high temperature of high-temperature gas UTILIZATION OF VESIDUAL HEAT IN, such as coal gasification generation, fuel combustion are produced, is work
Industry enterprise saves the energy, improves an important means of the thermal efficiency.Waste heat boiler is one of recovery high-temperature gas waste heat important
Device.
The predominant gas flow of high-temperature gas waste heat boiler is that high-temperature gas enters waste heat boiler, by superheater, evaporation
After device, economizer, gas recovery sensible heat, the gas of sensible heat is recovered, such as cooling coal gas enters after subsequent handling processing for using,
Low-temperature flue gas is then emptied after processing.The industry heating dress heated using coal, natural gas or other hydrocarbons as fuel
Put, the protium in fuel can enter in high-temperature flue gas as water vapor.
Fluidized bed pulverized coal gasification technique is the coal gasifying process of current coal gasification field application widely, coal gasification
During, steam participates in gasification reaction as gasifying agent, because chemical reaction equilibrium reason and steam are anti-during gasification reaction
The influence of residence time is answered, steam can not be decomposed completely, relatively low in gasification reaction starting stage steam decomposition rate, there is 70~80%
Steam fail participate in reaction, in normal gasifying stage, the steam for also having nearly 30~40% can not be decomposed.These vapor
Enter in a gaseous form in coal gas of high temperature.
The flue gas or coal gas of above moisture vapor, temperature are higher, and contain dust, up to standard for the saving energy, environmental protection
Or meet technological requirement, it is necessary to by waste heat recovery, dust is dropped into 5-10mg/Nm3, ripe technique is first to set waste heat now
Boiler, then enters back into cloth-sack-type dust removal system, reduces the temperature to 160 DEG C of -170 DEG C of temperature (more than dew temperature) anti-system and contains
The flue gas or coal gas of water vapour condense precipitation in cloth-sack-type dust removal system, neither influence dedusting not damage cloth bag again, by dust
It is down to 5-10mg/Nm3。
When coal gas or flue-gas temperature are reduced to 160 DEG C -170 DEG C [i.e. dew point saturation temperatures] below, just have a large amount of water and steam
Vapour, which condenses, to be separated out.Particularly in sack cleaner, gas flow rate is low, and the area of dissipation of sack cleaner is big, if there is water steaming
Vapour, which condenses, to be separated out, then can cause dust bonding outside filter bag, cause cloth bag resistance big, and efficiency of dust collection reduction can make when serious
Into such as fine coal gasification device of cycle fluidized bed parking accident.Too low gas temperature will also result in hardware and pipeline simultaneously
Low-temperature corrosion, has a strong impact on the physical life of device.
The coal gas or flue-gas temperature of heat reclamation device output are too high, then the filter bag for needing heatproof higher causes bag-type dust
Device investment is too high.If gas temperature exceedes the temperature in use of filter bag, cloth bag can be caused to burn out, under sack cleaner efficiency of dust collection
Drop, can be caused when serious as fine coal gasification device of cycle fluidized bed stop accident, have a strong impact on the continuous-stable of coal gasification apparatus
Operation.
Therefore, rationally the gas temperature of control waste heat boiler output is 160 DEG C -170 DEG C [i.e. more than dew-point temperatures], to protecting
Demonstrate,prove the continuous high-efficient operation of circulating fluid-bed gasifying powder coal device and industrial heating device, and control device investment, operation
The life-span of expense and device has great importance.Make after heat reclamation device, coal gas of high temperature or flue-gas temperature are reduced to
160 DEG C -170 DEG C stable [i.e. more than dew-point temperature] outputs are the problem of current heat reclamation device are not solved very well.
The existing gas waste-heat steam generator system having been carried out, demineralized water enters economizer through boiler feed pump, before economizer
Drum water supply control valve group is set.The major defect of this system is：
1. there are problems that vapour locking：Open in coal gasification or heater, in furnace shutting down process, due to relatively low, the waste heat pot of load
When stove evaporation capacity is smaller, liquid level of steam drum change it is smaller, now drum confluent is smaller, then the coal gas heat at economizer can not and
When take out of and cause inside economizer the demineralized water in tube bank vaporization phenomenon occur, because the presence of vapour locking and caused by drum can not and
Shi Shangshui, easily causes parking accident.
2. the coal gas of high temperature temperature change before cooling directly affects the gas temperature for entering sack cleaner after cooling, this
Unstability operation normal to sack cleaner has harmfulness：
2-1. gas temperatures are too high, the too low harmfulness to sack cleaner：Fine coal gasification device of cycle fluidized bed is in fortune
During row, its load changes into grading factors because of air demand, operating method, coal, and the fluctuation of load causes waste heat
Boiler rear portion gas temperature changes, and gas temperature is too high, easily causes the burn-through of sack cleaner filter bag, causes efficiency of dust collection
Decline, the dustiness increase in coal gas, result in blockage jam to the valve and equipment of aftertreatment systems, is unfavorable for the fortune of equipment
OK.Gas temperature is reduced, then the water recovery easily caused in coal gas is separated out, and is caused dust bonding to block filter bag, is unfavorable for cloth
The operation of bag dust collector.
The too low harmfulness to hardware of 2-2. gas temperatures：The metallic conduit of too low gas temperature also easily to device
Dew point corrosion is caused with hardware, the physical life of device is had a strong impact on, the investment construction expense and operation for increasing enterprise are tieed up
Accomplish this.
The content of the invention
When a kind of coal gas of high temperature of the utility model offer is changed into cooling coal gas output, the cooling gas temperature of output can be entered
Row regulation is in the temperature of stable suitable entrance sack cleaner, applicable for temperature needed for obtaining boiler feed water again by UTILIZATION OF VESIDUAL HEAT IN
The coal gas of high temperature UTILIZATION OF VESIDUAL HEAT IN of degree is in boiler feed system.
Coal gas of high temperature described in the utility model：Refer to from circulating fluidized bed system evaporator come high temperature 360 DEG C or so,
Moisture vapor, coal gas containing dust or flue gas；It is that should carry out coal gas or flue gas that sack cleaner removes dust.
Cooling coal gas described in the utility model：Refer to after heat reclamation device 5 of the present utility model, 170 DEG C of output
Left and right [i.e. more than dew-point temperature] is used to input coal gas or flue gas that sack cleaner removes dust.It is described in the utility model
The coal gas that cools is identical concept with cryogenic gas.
Heat reclamation device 5 described in the utility model is identical concept with the economizer in produce reality.
Demineralized water described in the utility model, which refers to, can be used for the softened water of boiler.
Drum 9 described in the utility model is the title in produce reality, and it is exactly that steam, liquid are mixed and deposited that drum 9 is actual
Container.
The coal gas waste heat boiler water system of output coal gas temperature after controllable cooling, including room temperature demineralized water is flowed into
The desalination water heating system of drum 9, it is characterised in that：Also include returning to lifting room temperature demineralized water with a small amount of demineralized water that heated
Room temperature DW system demineralized water system is adjusted, the electronic of desalination water heating system is inputted with the warmed-up demineralized water of regulation room temperature DW system demineralized water system
Feed pump 2 and heat reclamation device 5, the high temperature gas of heat reclamation device 5 are exchanged heat with demineralized water, and coal gas of high temperature heat transfer is removed
Salt solution, realizes the normal work of heat reclamation device 5：
Desalination water heating system：Erect on the top of water pipe, oxygen-eliminating device 7 including the room temperature demineralized water that is connected with water pipe according to order
Vertical shower room 10, electrically driven feed pump 2, heat reclamation device 5, the bypass control valve (BCV) 3 of heat reclamation device 5, feedwater valve group 8 and drum 9；
Adjust room temperature DW system demineralized water system：Including between the heat reclamation device 5 connected with water pipe according to order and feedwater valve group 8
Water pipe, Automatic reflux control valve 6, the horizontal storage tank 11 of the bottom of oxygen-eliminating device 7；
Described oxygen-eliminating device 7 includes one and erects shower room 10 and positioned at the horizontal storage tank erect below shower room 10
11, erect below shower room 10 with being communicated above horizontal storage tank 11；The top erect in shower room 10 is provided with shower, should
Shower is communicated with the water pipe of room temperature demineralized water；The top of horizontal storage tank 11 is communicated with Automatic reflux control valve 6；Horizontal water storage
The bottom delivery port of case 11 is communicated with the water inlet of electrically driven feed pump 2；
Heat reclamation device 5 includes about one outer casing container 12 for having external gas pipeline respectively, in the outer casing container 12
In be provided with heat exchanger tube 13, the water inlet of the heat exchanger tube 13 communicates with the delivery port of electrically driven feed pump 2, the delivery port of the heat exchanger tube 13
Communicated with feedwater valve group 8, Automatic reflux control valve 6；
The escape pipe of heat reclamation device 5 is provided with output cold-gas temperature detection means 4, the output cold-gas temperature
Detection means 4 is connected with Automatic reflux control valve 6, is controlled with the output information of output cold-gas temperature detection means 4 automatic
Recycle control valve 6.
Cryogenic gas [low temperature coal gas] temperature that heat reclamation device is exported, which can be adjusted, for above-mentioned technical proposal refers to：It is logical
Cross output cold-gas temperature detection means 4 and experience the temperature that heat reclamation device 5 exports cryogenic gas, controlled with the temperature signal
The flow that Automatic reflux control valve 6 is returned to boiler with demineralized water is controlled, and regulation enters the desalination water of heat reclamation device 5,
The method regulation outer casing container 12 of heat reclamation device 5 of output desalination water-carrying capacity in heat exchanger tube 13 i.e. in regulation heat reclamation device 5
The cold-gas temperature of output, realizes cooling gas temperature that regulation outer casing container 12 exports in 170 DEG C or so [or dew point temperature
It is more than degree], i.e., stable output cooling gas temperature 170 DEG C or so [or more than dew-point temperatures], this 170 DEG C or so [or
It is more than dew-point temperature] coal gas of equilibrium temperature is used to inputting during sack cleaner removes dust, will not produce water steaming
Vapour, which condenses, to be separated out, and is not resulted in dust bonding and is blocked filter bag；Dew point will not be caused rotten to the metallic conduit and hardware of device
Erosion, the physical life of extension fixture；Cloth bag will not be burnt out because of high temperature.Reduce enterprise investment construction expense and operating maintenance into
This.
Above-mentioned technical proposal solves vapour locking method：When the water consumption of drum 9 is reduced, enter if no Automatic reflux control valve 6
Enter the desalination discharge reduction of heat reclamation device 5, and the import coal gas of high temperature temperature of heat reclamation device 5 brings heat into or constant, because
This causes desalination coolant-temperature gage in heat reclamation device 5 to raise, when the saturation temperature corresponding to the pressure for meeting or exceeding drum 9,
Going out the desalted water of heat reclamation device 5 will vaporize, and now can form vapour locking on the water charge line for entering drum 9, drum 9 is added water tired
It is difficult；When provided with Automatic reflux control valve 6, then the no a part of desalted water of drum 9 is returned by Automatic reflux control valve 6 and removed
Oxygen device 7, the desalination water for so flowing through heat reclamation device 5 will not be because the usage amount of drum 9 is reduced and reduces, in retracting device 5
Desalination water is not reduced, and would not also be vaporized, so vapour locking will not be formed.
Above-mentioned technical proposal can refer to the UTILIZATION OF VESIDUAL HEAT IN that 360 DEG C or so coal gas of high temperature are changed into 170 DEG C or so low temperature coal gas：
In oxygen-eliminating device 7, demineralized water and the heat reclamation device 5 of 20 DEG C or so room temperatures are returned to the demineralized water of oxygen-eliminating device 7 in horizontal water storage
Case 11 is mixed into, if temperature does not reach 100 DEG C, outer to be heated to 100 DEG C for filling into steam, 100 DEG C of demineralized water passes through electricity
Dynamic feed pump 2 is entered in the heat exchanger tube 13 of heat reclamation device 5.360 DEG C or so of height in the outer casing container 12 of heat reclamation device 5
Warm coal gas, which is heated into 100 DEG C or so in heat exchanger tube 13 of demineralized water, can enter the demineralized water that boiler is adapted to temperature, and boiler is with removing
Salt solution preference temperature is less than the saturated vapor temperature corresponding to drum pressure.The boiler desalination exported in heat exchanger tube 13
Water a, part returns to horizontal storage tank 11 by Automatic reflux control valve 6 and mixed with the demineralized water of 20 DEG C or so room temperatures, remaining
Enter the boiler of feeding of drum 9 by feedwater valve group 8 and use.Reach the waste heat heat recovery 360 DEG C or so of coal gas of high temperature
The purpose utilized, saves the energy, reduces hot driving, reduces the purpose of thermal pollution.
With bypass between the water inlet pipe of heat exchanger tube 13 and the outlet pipe of heat exchanger tube 13 outside the shell of 5 outer casing container of heat reclamation device 12
Control valve 3 is connected.
When bypass control valve (BCV) 3 is opened, it will can directly connect, can make between the water inlet pipe of heat exchanger tube 13 and the outlet pipe of heat exchanger tube 13
Among 100 DEG C or so of demineralized water enters directly into outlet pipe in water inlet pipe, reduce 100 in the heat exchanger tube 13 of heat reclamation device 5
DEG C or so low temperature demineralized water flow so that improve the outer casing container 12 of heat reclamation device 5 output cooling coal gas [low temperature coal gas]
Temperature.So, bypass control valve (BCV) 3 is with quick, directly regulation cooling gas temperature function.
So, cooling coal gas [low temperature coal gas] temperature that regulation heat reclamation device 5 is exported has two kinds of methods, and one is to use low temperature
Gas temperature detection means 4 and Automatic reflux control valve 6 are automatically adjusted, and two are entered with heat reclamation device bypass control valve (BCV) 3
Row regulation manually.
Also include an emergency diesel-oil feed pump 1, the water inlet pipe of emergency diesel-oil feed pump 1 and the water inlet of electrically driven feed pump 2
Pipe is connected, and the outlet pipe of emergency diesel-oil feed pump 1 is connected with the outlet pipe of electrically driven feed pump 2.
The water inlet pipe and water outlet pipe of emergency diesel-oil feed pump 1 is in parallel with the water inlet pipe and water outlet pipe of electrically driven feed pump 2, makes the system in no electricity
Under conditions of also can normal work, be this high-temperature residual heat equipment in uncontrollable power failure condition, equipment does not produce the guarantor of accident
Barrier.
Advantage of the present utility model：
Cooling coal gas [low temperature coal gas] temperature of regulation heat reclamation device output has two kinds of methods, and one is to use cryogenic gas temperature
Detection means and Automatic reflux control valve are spent, the cooling coal gas that automatically adjusted with the flow of demineralized water in control heat exchanger is [low
Warm coal gas] temperature stabilization is 170 DEG C or so [or more than dew-point temperatures]；Two are carried out manually with heat reclamation device bypass control valve (BCV)
Regulation, also makes coal gas [low temperature coal gas] temperature stabilization 170 DEG C or so [or more than dew-point temperatures].Coal gas [low temperature coal gas] temperature
It is stable that there is following advantage 170 DEG C or so [or more than dew-point temperatures]：
1. can effectively solve in waste heat boiler start and stop and running, there is water vapor in the heat-exchanging tube bundle of heat exchanger 13, make
Into supply line vapour locking, drum is caused to be unable to maintain that ordinary water level and cause blowing out accident.
2. the cold-gas temperature that can effectively control heat reclamation device to export, it is to avoid paste filter occurs in sack cleaner below
Bag, burning filter bag phenomenon, reduce maintenance, the cost of overhaul.
3. accurately controlling cold-gas temperature in zone of reasonableness by the utility model, meet and use more economical low temperature
The requirement of filter bag, effectively reduces project investment expense.
4. by the input of automatic interlock, can reduce it is unnecessary artificial, by manual and accurately automatically control, make more than
Heat boiler system operation is more steady, is conducive to whole gasification or the continuous operation of heater.
5., can be in the state of shutting off power in emergency, it is ensured that afterheat boiler system has abundance by setting emergency diesel-oil feed pump
Water supply, it is ensured that equipment safety.
6. heat exchanger apparatus imports and exports the reliability service that pipeline increase bypass control valve (BCV) is conducive to system.
7. effectively heat reclamation device can be prevented to be operated in below dew point, the dew point corrosion of heat reclamation device, increase heat are reduced
The physical life of retracting device, reduces the operating cost of waste heat boiler.
Brief description of the drawings
Fig. 1 is system composition schematic diagram of the present utility model.
In Fig. 11 be anxious diesel oil feed pump, 2 be electrically driven feed pump, 3 be heat reclamation device bypass control valve (BCV), 4 be output it is low
Wet temperature detection means, 5 be heat reclamation device, 6 be Automatic reflux control valve, 7 be oxygen-eliminating device, 8 be drum water-supply valve, 9
It is drum, 10 setting shower rooms, 11 horizontal storage tanks, 12 outer casing containers, 13 heat exchanger tubes.
Embodiment
The coal gas waste heat boiler water system of output coal gas temperature after embodiment 1, controllable cooling
Such as Fig. 1, the coal gas waste heat boiler water system of output coal gas temperature after controllable cooling, including room temperature demineralized water
The desalination water heating system of drum 9 is flowed into, in addition to is mixed demineralized water return has been heated with room temperature demineralized water, regulation heat is returned
Cooling gas temperature systems stabilisation of the temperature of the cooling coal gas of receiving apparatus output in stable temperature range；
Desalination water heating system：Erect on the top of water pipe, oxygen-eliminating device 7 including the room temperature demineralized water that is connected with water pipe according to order
Vertical shower room 10, electrically driven feed pump 2, heat reclamation device 5, the bypass control valve (BCV) 3 of heat reclamation device 5, the heat exchange of heat reclamation device 5
The feedwater valve group 8 of pipe 13 and drum 9；
Cool gas temperature systems stabilisation：The heat exchanger tube 13 of heat reclamation device 5 including being connected with water pipe according to order is exported
Water pipe, the water pipe between feedwater valve group 8 are connected with Automatic reflux control valve 6 and feedwater valve group 8, Automatic reflux control valve 6
Connected again with the horizontal storage tank 11 of the bottom of oxygen-eliminating device 7, the connection of horizontal storage tank 11 electrically driven feed pump 2, electrically driven feed pump 2 are connected
The import of heat exchanger tube 13 of heat reclamation device 5；
Described oxygen-eliminating device 7 includes one and erects shower room 10 and positioned at the horizontal storage tank erect below shower room 10
11, erect below shower room 10 with being communicated above horizontal storage tank 11；The top erect in shower room 10 is provided with shower, should
Shower is communicated with the water pipe of room temperature demineralized water；The top of horizontal storage tank 11 is communicated with Automatic reflux control valve 6；Horizontal water storage
The bottom delivery port of case 11 is communicated with the water inlet of electrically driven feed pump 2；
Heat reclamation device 5 includes about one outer casing container 12 for having external gas pipeline respectively, in the outer casing container 12
In be provided with heat exchanger tube 13, the water inlet of the heat exchanger tube 13 communicates with the delivery port of electrically driven feed pump 2, the delivery port of the heat exchanger tube 13
Communicated with feedwater valve group 8, Automatic reflux control valve 6；
The escape pipe of heat reclamation device 5 is provided with output cold-gas temperature detection means 4, the output cold-gas temperature
Detection means 4 is connected with Automatic reflux control valve 6, is controlled with the output information of output cold-gas temperature detection means 4 automatic
Recycle control valve 6.
Used between the water inlet pipe of heat exchanger tube 13 and the outlet pipe of heat exchanger tube 13 in the shell of 5 outer casing container of heat reclamation device 12
Bypass control valve (BCV) 3 is connected.
Also include an emergency diesel-oil feed pump 1, the water inlet pipe of emergency diesel-oil feed pump 1 and the water inlet of electrically driven feed pump 2
Pipe is connected, and the outlet pipe of emergency diesel-oil feed pump 1 is connected with the outlet pipe of electrically driven feed pump 2.
Claims (3)
1. the coal gas waste heat boiler water system of output coal gas temperature after controllable cooling, including room temperature demineralized water is flowed into vapour
Wrap the desalination water heating system of (9), it is characterised in that：Also include mixing with room temperature demineralized water demineralized water return has been heated, adjust
Save cooling gas temperature systems stabilisation of the temperature in stable temperature range for the cooling coal gas that heat reclamation device is exported；
Desalination water heating system：Water pipe, oxygen-eliminating device (7) including the room temperature demineralized water that is connected with water pipe according to order, electronic feedwater
Pump (2), the heat exchanger tube (13) of heat reclamation device (5), feedwater valve group (8) and drum (9)；
Cool gas temperature systems stabilisation：Including heat exchanger tube (13) outlet of the heat reclamation device (5) connected with water pipe according to order
Water pipe, the water pipe between feedwater valve group (8) are connected with Automatic reflux control valve (6), Automatic reflux control valve (6) again with except
Horizontal storage tank (11) connection of oxygen device (7) bottom, horizontal storage tank (11) connection electrically driven feed pump (2), electrically driven feed pump (2)
Connect heat exchanger tube (13) import of heat reclamation device (5)；
Described oxygen-eliminating device (7) includes one and erects shower room (10) and the horizontal storage tank positioned at setting shower room (10) below
(11), erect below shower room (10) with being communicated above horizontal storage tank (11)；The top erect in shower room (10) is provided with
Shower, the shower is communicated with the water pipe of room temperature demineralized water；The top of horizontal storage tank (11) and Automatic reflux control valve (6)
Communicate；The bottom delivery port of horizontal storage tank (11) is communicated with the water inlet of electrically driven feed pump (2)；
Heat reclamation device (5) includes about one outer casing container (12) for having external gas pipeline respectively, in the outer casing container
(12) heat exchanger tube (13) is provided with, the water inlet of the heat exchanger tube (13) is communicated with the delivery port of electrically driven feed pump (2), the heat exchanger tube
(13) delivery port is communicated with feedwater valve group (8)；
The escape pipe of heat reclamation device (5) is provided with output cold-gas temperature detection means (4), the output cold-gas temperature
Detection means (4) is connected with Automatic reflux control valve (6), with the output information control of output cold-gas temperature detection means (4)
Automatic reflux control valve (6) processed.
2. the coal gas waste heat boiler water system of output coal gas temperature after controllable cooling according to claim 1, it is special
Levy and be：Heat exchanger tube (13) water inlet pipe and heat exchanger tube (13) outlet pipe outside heat reclamation device (5) outer casing container (12) shell it
Between with bypass control valve (BCV) (3) connect.
3. the coal gas waste heat boiler water system of output coal gas temperature after controllable cooling according to claim 1, it is special
Levy and be：Also include an emergency diesel-oil feed pump (1), water inlet pipe and the electrically driven feed pump (2) of emergency diesel-oil feed pump (1)
Water inlet pipe is connected, and the outlet pipe of emergency diesel-oil feed pump (1) is connected with the outlet pipe of electrically driven feed pump (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621496725.5U CN206488263U (en) | 2016-12-30 | 2016-12-30 | The coal gas waste heat boiler water system of output coal gas temperature after controllable cooling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621496725.5U CN206488263U (en) | 2016-12-30 | 2016-12-30 | The coal gas waste heat boiler water system of output coal gas temperature after controllable cooling |
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| Publication Number | Publication Date |
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| CN206488263U true CN206488263U (en) | 2017-09-12 |
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ID=59771000
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| CN201621496725.5U Expired - Fee Related CN206488263U (en) | 2016-12-30 | 2016-12-30 | The coal gas waste heat boiler water system of output coal gas temperature after controllable cooling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464924A (en) * | 2021-07-27 | 2021-10-01 | 山西沃能化工科技有限公司 | Method for improving stability of boiler feed water |
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2016
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464924A (en) * | 2021-07-27 | 2021-10-01 | 山西沃能化工科技有限公司 | Method for improving stability of boiler feed water |
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