CN107975789A - A kind of DC low-voltage superhigh temperature steam superheating device and control method - Google Patents
A kind of DC low-voltage superhigh temperature steam superheating device and control method Download PDFInfo
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- CN107975789A CN107975789A CN201711463169.0A CN201711463169A CN107975789A CN 107975789 A CN107975789 A CN 107975789A CN 201711463169 A CN201711463169 A CN 201711463169A CN 107975789 A CN107975789 A CN 107975789A
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G1/00—Steam superheating characterised by heating method
- F22G1/16—Steam superheating characterised by heating method by using a separate heat source independent from heat supply of the steam boiler, e.g. by electricity, by auxiliary combustion of fuel oil
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G3/00—Steam superheaters characterised by constructional features; Details of component parts thereof
- F22G3/001—Steam tube arrangements not dependent of location
- F22G3/002—Steam tube arrangements not dependent of location with helical steam tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G5/00—Controlling superheat temperature
- F22G5/02—Applications of combustion-control devices, e.g. tangential-firing burners, tilting burners
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The invention discloses a kind of DC low-voltage superhigh temperature steam superheating device and control method, it includes burner, housing and jet chimney, the jet chimney is arranged side by side inside housings and enclosure interior space is divided into reverse-flow type gas channel, the burner is arranged on shell one end, for the spray combustion thermal current into gas channel, the steam to be circulated in a manner of heat radiation in steam pipeline (trace).The device of the invention passes through innovative design, heated vapor pipeline is set to be in thermal radiation under upper and lower 360 ° of total radiation source of conductive heating, substantially increase the thermal efficiency, the quick required stable heat source of drying and other treatment oily sludge in oil industry can be provided, small volume at the same time, the thermal efficiency is high, and fuel consumption is few.
Description
Technical field
The present invention relates to sludge treatment equipment field, especially a kind of DC low-voltage of quick drying and other treatment oily sludge surpasses
High-temperature steam superheater and control method.
Background technology
The sewage disposal system and crude oil production storing and transporting system of oil field and oil plant can produce substantial amounts of oily sludge, mesh
The oily sludge total amount that preceding China produces every year is up to more than 500 ten thousand tons.As most of oil fields enter middle and later periods mining phase, extraction
Water in oil rate is higher and higher, and oily sludge amount also may proceed to increase.In this regard, processing of the people to oily sludge has carried out largely
Research, but so far without a kind of ripe effective processing method.Sludge heating power drying and other treatment is most common processing method, one
As sludge drying device using using the hot wind that coal-fired hot-blast stove produces as drying heat source, using convection type, half radiation
Mode dries sludge, stove interior conduit can bearing temperature it is relatively low, therefore smoke temperature is generally below 1000 DEG C in stove, drying efficiency
Low, cost is also higher, bulky, and structure is relatively complicated.
The content of the invention
In view of the shortcomings of the prior art, the present invention propose one kind can provide oily sludge curing process it is required stablize it is low
The efficient direct current low pressure superhigh temperature steam superheating device and control method of super pressure-high temperature steam source.
The present invention solve the technical solution that uses of above-mentioned technical problem for：A kind of DC low-voltage superhigh temperature steam superheating dress
Put, it includes burner, housing and jet chimney, and the jet chimney is arranged side by side inside housings and enclosure interior is empty
Between be divided into reverse-flow type gas channel, the burner is arranged on shell one end, for into gas channel spray combustion heat
Air-flow, the steam to be circulated in a manner of heat radiation in steam pipeline (trace).
Further, the jet chimney be arranged side by side with wound form inside housings, formed the inner coil pipe being separated by and
Outer coil pipe.
Further, jet chimney steam-out (SO) entrance at outer coil pipe, and outer coil pipe is formed with wound form, so
After curve inwardly inner coil pipe formed with wound form, in the end steam-out (SO) outlet of inner coil pipe.
Further, the steam inlet and steam (vapor) outlet are arranged on the outside of housing and are located at hull outside the same end
The both sides in portion.
Further, it is the first gas channel inside the inner coil pipe, is the second air-flow between inner coil pipe and outer coil pipe
Passage, is separated by between outer coil pipe and housing and forms the 3rd gas channel, and the first gas channel end set, which has, leads to the second gas
The reflux portion of circulation road, the second gas channel end set have the reflux portion for leading to the 3rd gas channel, the first gas channel,
Two gas channels and the 3rd gas channel form reverse-flow type gas channel, and the 3rd gas channel end is provided with exhanst gas outlet.
Further, first gas channel, the second gas channel and the 3rd gas channel are horizontal gas flow passage.
Further, the burner is using natural gas as fuel, for into the first gas channel jet flames formed
Combustion heat air-flow carries out radiation heat transfer with inner coil pipe jet chimney, and then thermal current is outside in the first gas channel end reflux portion
180 ° of second gas channels of entrance of turning simultaneously carry out radiation heat transfer in the second gas channel with inside and outside coil pipe jet chimney, so
Air-flow is in the second gas channel end reflux portion 180 ° of the 3rd gas channels of entrance of outside turning and in the 3rd gas channel afterwards
Radiation heat transfer, exhanst gas outlet discharge of the last thermal current at the top of shell one end are carried out with outer coil pipe jet chimney.
Further, one end for being provided with steam entry and exit of burner connection housing.
Further, the inner disc bore is more than the outside diameter of burner jet flames, and the length of inner coil pipe is more than combustion
The length of burner jet flames, ensures that the flame of burner not with heated vapor tube contacts, prevents carbon distribution, accomplishes natural gas
Completely burned.
A kind of control method of DC low-voltage superhigh temperature steam superheating device, it is specially：
DC low-voltage superhigh temperature steam superheating device further includes control unit, and burner includes frequency converter, natural gas pump and nozzle,
Steam (vapor) outlet end is provided with temperature sensor, and frequency converter is by controlling natural gas pump to the natural gas for burning of conveying at nozzle
Flow, temperature of the control steam when being sprayed after being heated by jet chimney from steam outlet；
Temperature sensor feedback vapor temperature signal at steam (vapor) outlet end is arranged on to control unit, control unit is by steam temperature
Degree signal forms automated closed-loop regulating loop compared with the setting vapor (steam) temperature value in frequency converter, and control unit is according to steam temperature
Actual conditions are spent, set air supply system flow value；When vapor (steam) temperature need to increase, frequency converter output voltage and frequency rise, day
Right air pump rotating speed rise, the increase of pumping hole gas output；When vapor (steam) temperature need to be reduced, frequency converter output voltage and frequency reduce, gas
Revolution speed reduces, and pumping hole gas output is reduced, and remains that jet chimney pipe network discharge vapor (steam) temperature is constant by frequency conversion supply, makes
It is maintained in set temperature value；
Frequency conversion supply uses digital incremental PID regulative modes, and the amount that automated closed-loop regulating loop is adjusted is in the jet chimney
Steam actual temperature value t compares more caused difference signal with temperature reference value t0 and send control unit PID regulator to carry out PID
Computing, its operation result are converted to analog control signal and send frequency converter to carry out operating control, to reach running temperature values t any
State of temperature is all the time close to setting reference temperature value t0；
1）When actual temperature is less than t1, to accelerate response speed, the operation of air pump full gear；
2）When actual temperature is located at t1~t2, to avoid integration saturation, separation integral item, using PD control；
3）When actual temperature is located at t2~t3, using PID control；
4）When actual temperature is located at t3~t4, using Adaptive PID Control；
5）Work as observed temperature>T0+0.1, and in the sampling period, constant temperature rises, then frequency converter disconnects；
6）In the sampling period, constant temperature declines, then frequency converter is open-minded, other situations carry out PID control；
7）When measured discharge is more than t4, converter power supply is closed；
T0 is set temperature value 1, the selected as of t1, t2, t3, t4：T1=t0 × 94%, t2=t0 × 97%, t3=t0-0.2, t4=
t0+0.2.This control method not only allows for the deviation of observed temperature and design temperature, and considers observed temperature change and become
Gesture, can reduce hyperharmonic fluctuation, have adaptive effect.
Compared with prior art, the advantages of present invention possesses be：The device of the invention makes heated vapor by innovative design
Pipeline is in thermal radiation under upper and lower 360 ° of total radiation source of conductive heating, substantially increases the thermal efficiency, while small volume, thermal effect
Rate is high, and fuel consumption is few；The device of the invention auto-control degree is high, and vapor (steam) temperature stability is high, and controllability is high, operation
Simply, the control method of use can provide the quick required stable heat source of drying and other treatment oily sludge in oil industry.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is side structure schematic view of the present invention.
Embodiment
The present invention is described further below in conjunction with the accompanying drawings.
A kind of DC low-voltage superhigh temperature steam superheating device as shown in Figure 1, 2, it includes burner 2, housing 1 and steam
Pipeline 3, the jet chimney 3 are disposed side by side on the inside of housing 1 and are divided into reverse-flow type air-flow to lead to 41 inner space of housing
Road, the burner 2 are arranged on 1 one end of housing, for the spray combustion thermal current into gas channel 4, with the side of heat radiation
The steam of circulation in formula steam pipeline (trace) 3.
Further, the jet chimney 3 is disposed side by side on inside housing 1 with wound form, forms the inner coil pipe being separated by
31 and outer coil pipe 32.
Further, the jet chimney 3 steam-out (SO) entrance 33 at outer coil pipe 32, and external disk is formed with wound form
Pipe 32, then curves inwardly and forms inner coil pipe 31 with wound form, in the end steam-out (SO) outlet 34 of inner coil pipe 31.
Further, the steam inlet 33 and steam (vapor) outlet 34 are arranged on the outside of housing 1 and outside housings 1
The both sides of same end, steam inlet 33 input steam into jet chimney 3, and steam receives thermal current in the inside of housing 1
Discharged after heat exchange radiation from steam (vapor) outlet 34, the steam of discharge is low pressure superhigh temperature steam.
Further, the inside of inner coil pipe 31 is the first gas channel 41, is between inner coil pipe 31 and outer coil pipe 32
Second gas channel 42, is separated by between outer coil pipe 32 and housing 1 and forms the 3rd gas channel 43,41 end of the first gas channel
The reflux portion 44 for leading to the second gas channel 42 is provided with, 42 end set of the second gas channel, which has, leads to the 3rd gas channel 43
Reflux portion 45, the first gas channel 41, the second gas channel 42 and the 3rd gas channel 43 form reverse-flow type gas channel 4,
3rd gas channel, 43 end is provided with exhanst gas outlet 46.
Further, first gas channel 41, the second gas channel 42 and the 3rd gas channel 43 are horizontal gas
Circulation road, the device of the invention are similarly horizontal arrangement, and the thermal current to circulate in gas channel is horizontal, laterally circulation.
Further, the burner 2 is using natural gas as fuel, for the jet flames shape into the first gas channel 41
Radiation heat transfer is carried out into combustion heat air-flow and 31 jet chimney of inner coil pipe, then thermal current flows back in 41 end of the first gas channel
180 ° of second gas channels of entrance 42 of outside turning of portion 44 simultaneously carry out in the second gas channel 42 with inside and outside coil pipe jet chimney
Radiation heat transfer, then air-flow 180 ° of the 3rd gas channels 43 of entrance are outwards turned in 42 end reflux portion 45 of the second gas channel simultaneously
Radiation heat transfer is carried out with outer 32 jet chimney of coil pipe in the 3rd gas channel 43, last thermal current is in 1 end top of housing
Exhanst gas outlet 46 is discharged.
Further, the burner 2 connects one end for being provided with steam entry and exit of housing 1.
Further, 31 internal diameter of inner coil pipe is more than the outside diameter of burner jet flames 21, the length of inner coil pipe 31
More than the length of burner jet flames 21, the flame 21 for ensureing burner prevents from accumulating not with heated vapor tube contacts
Carbon, accomplishes the completely burned of natural gas.
A kind of control method of DC low-voltage superhigh temperature steam superheating device, it is specially：
DC low-voltage superhigh temperature steam superheating device further includes control unit；Burner includes frequency converter, natural gas pump and nozzle,
Further include volume adjusting apparatus, igniter, flame detector and flame holder；34 end of steam (vapor) outlet is provided with temperature sensor, becomes
Frequency device is by controlling natural gas pump passing through jet chimney 3 to the gas discharge for burning of conveying at nozzle, control steam
Temperature when being sprayed after heating at steam (vapor) outlet 34, jet chimney flow are adjusted by the inlet for being pumped into jet chimney 3；
When control starts the device of the invention, starting switch is pressed, the air-introduced machine of volume adjusting apparatus just starts to act, and treats air inducing
After electromechanics stream is normal, the pressure fan of volume adjusting apparatus acts therewith, purging before carrying out.If without other anomalous variations, igniter
Opening will fuel supply nozzle needed for igniting；Jet combustion control valve is opened, and natural gas pump starts to supply, and should be at low stream at this time
Combustion state is measured, flame detector sends detection signal and come increasing fuel flow regulating valve and air door of fan according to combustion case
Aperture；After combustion state is normal, igniter is closed, into stablizing automatic running state.Combustion System, which generally divides, level adjusting
With two kinds of step-less adjustment, the present apparatus matches somebody with somebody burner and is each configured to step-less adjustment, its fuel feed changes with change of heat loading
Become, overcome level and adjusted the shortcomings that big to boiler hot impact force, stable, waste of fuel is few.
It is actually to control transducer drive natural gas pump to nozzle for natural from control unit to stablize automatic running state
Gas burns, the steam in steam pipeline (trace) 3.The temperature sensor feedback vapor temperature signal being arranged at 34 end of steam (vapor) outlet
To control unit, control unit, which compares vapor temperature signal with the setting vapor (steam) temperature value in frequency converter, forms automated closed-loop
Regulating loop, control unit set air supply system flow value according to vapor (steam) temperature actual conditions；When vapor (steam) temperature need to increase,
Frequency converter output voltage and frequency rise, the rise of natural gas pump rotating speed, the increase of pumping hole gas output；When vapor (steam) temperature need to be reduced,
Frequency converter output voltage and frequency reduce, and air pump rotating speed reduces, and pumping hole gas output is reduced, and steam is remained by frequency conversion supply
Pipeline pipe network constant temperature, keeps it in set temperature value；
Frequency conversion supply uses digital incremental PID regulative modes, and the amount that automated closed-loop regulating loop is adjusted is in the jet chimney
Steam actual temperature value t compares more caused difference signal with temperature reference value t0 and send control unit PID regulator to carry out PID
Computing, its operation result are converted to analog control signal and send frequency converter to carry out operating control, to reach running temperature values t any
State of temperature is all the time close to setting reference temperature value t0；
1）When actual temperature is less than t1, to accelerate response speed, the operation of air pump full gear；
2）When actual temperature is located at t1~t2, to avoid integration saturation, separation integral item, using PD control；
3）When actual temperature is located at t2~t3, using PID control；
4）When actual temperature is located at t3~t4, using Adaptive PID Control；
5）Work as observed temperature>T0+0.1, and in the sampling period, constant temperature rises, then frequency converter disconnects；
6）In the sampling period, constant temperature declines, then frequency converter is open-minded, other situations carry out PID control；
7）When measured discharge is more than t4, converter power supply is closed；
T0 is set temperature value 1, the selected as of t1, t2, t3, t4：T1=t0 × 94%, t2=t0 × 97%, t3=t0-0.2, t4=
t0+0.2.This control method not only allows for the deviation of observed temperature and design temperature, and considers observed temperature change and become
Gesture, can reduce hyperharmonic fluctuation, have adaptive effect.
The auto-control degree of the device of the invention is high, can control the vapor (steam) temperature being passed through in jet chimney 3 one
Within the scope of a safety, ensure that jet chimney outside wall temperature is reliably cooled down, and carry for the curing process of oily sludge
For stabilizing low voltage high-temperature steam heat source.
Claims (10)
- A kind of 1. DC low-voltage superhigh temperature steam superheating device, it is characterised in that：Including burner, housing and jet chimney, institute The jet chimney stated is arranged side by side inside housings and enclosure interior space is divided into reverse-flow type gas channel, the burning Device is arranged on shell one end, for the spray combustion thermal current into gas channel, in a manner of heat radiation in steam pipeline (trace) The steam of circulation.
- A kind of 2. DC low-voltage superhigh temperature steam superheating device according to claim 1, it is characterised in that：The steam Pipeline is arranged side by side with wound form inside housings, forms the inner coil pipe being separated by and outer coil pipe.
- A kind of 3. DC low-voltage superhigh temperature steam superheating device according to claim 1 or 2, it is characterised in that：Described Jet chimney steam-out (SO) entrance at outer coil pipe, and outer coil pipe is formed with wound form, then curve inwardly is formed with wound form Inner coil pipe, in the end steam-out (SO) outlet of inner coil pipe.
- A kind of 4. DC low-voltage superhigh temperature steam superheating device according to claim 3, it is characterised in that：The steam Entrance and steam (vapor) outlet are arranged on the outside of housing and positioned at the both sides of the same end of hull outside.
- A kind of 5. DC low-voltage superhigh temperature steam superheating device according to claim 3, it is characterised in that：The inner disc It is the first gas channel inside pipe, is the second gas channel between inner coil pipe and outer coil pipe, is separated by simultaneously between outer coil pipe and housing The 3rd gas channel is formed, the first gas channel end set has the reflux portion for leading to the second gas channel, the second gas channel End set has the reflux portion for leading to the 3rd gas channel, the first gas channel, the second gas channel and the 3rd gas channel shape Into reverse-flow type gas channel, the 3rd gas channel end is provided with exhanst gas outlet.
- A kind of 6. DC low-voltage superhigh temperature steam superheating device according to claim 5, it is characterised in that：Described first Gas channel, the second gas channel and the 3rd gas channel are horizontal gas flow passage.
- A kind of 7. DC low-voltage superhigh temperature steam superheating device according to claim 1, it is characterised in that：The burning Device using natural gas as fuel, for into the first gas channel jet flames formed combustion heat air-flow and inner coil pipe jet chimney into Row radiation heat transfer, then thermal current the first gas channel end reflux portion outwards turn 180 ° of second gas channels of entrance and Radiation heat transfer is carried out with inside and outside coil pipe jet chimney in second gas channel, then air-flow flows back in the second gas channel end Portion's 180 ° of the 3rd gas channels of entrance of outside turning simultaneously carry out radiation heat transfer in the 3rd gas channel with outer coil pipe jet chimney, Exhanst gas outlet discharge of the last thermal current at the top of shell one end.
- A kind of 8. DC low-voltage superhigh temperature steam superheating device according to claim 1 or 7, it is characterised in that：Described Burner connects one end for being provided with steam entry and exit of housing.
- A kind of 9. DC low-voltage superhigh temperature steam superheating device according to claim 3, it is characterised in that：The inner disc Bore is more than the outside diameter of burner jet flames, and the length of inner coil pipe is more than the length of burner jet flames.
- A kind of 10. controlling party of claim 1-2,4-7, DC low-voltage superhigh temperature steam superheating device any one of 9 Method, it is characterised in that：DC low-voltage superhigh temperature steam superheating device further includes control unit, and burner includes frequency converter, natural gas pump and nozzle, Steam (vapor) outlet end is provided with temperature sensor, and frequency converter is by controlling natural gas pump to the natural gas for burning of conveying at nozzle Flow, temperature of the control steam when being sprayed after being heated by jet chimney from steam outlet；Temperature sensor feedback vapor temperature signal at steam (vapor) outlet end is arranged on to control unit, control unit is by steam temperature Degree signal forms automated closed-loop regulating loop compared with the setting vapor (steam) temperature value in frequency converter, and control unit is according to steam temperature Actual conditions are spent, set air supply system flow value；When vapor (steam) temperature need to increase, frequency converter output voltage and frequency rise, day Right air pump rotating speed rise, the increase of pumping hole gas output；When vapor (steam) temperature need to be reduced, frequency converter output voltage and frequency reduce, gas Revolution speed reduces, and pumping hole gas output is reduced, and remains that jet chimney pipe network discharge vapor (steam) temperature is constant by frequency conversion supply, makes It is maintained in set temperature value；Frequency conversion supply uses digital incremental PID regulative modes, and the amount that automated closed-loop regulating loop is adjusted is in the jet chimney Steam actual temperature value t compares more caused difference signal with temperature reference value t0 and send control unit PID regulator to carry out PID Computing, its operation result are converted to analog control signal and send frequency converter to carry out operating control, to reach running temperature values t any State of temperature is all the time close to setting reference temperature value t0；1）When actual temperature is less than t1, to accelerate response speed, the operation of air pump full gear；2）When actual temperature is located at t1~t2, to avoid integration saturation, separation integral item, using PD control；3）When actual temperature is located at t2~t3, using PID control；4）When actual temperature is located at t3~t4, using Adaptive PID Control；5）Work as observed temperature>T0+0.1, and in the sampling period, constant temperature rises, then frequency converter disconnects；6）In the sampling period, constant temperature declines, then frequency converter is open-minded, other situations carry out PID control；7）When measured discharge is more than t4, converter power supply is closed；T0 is set temperature value 1, the selected as of t1, t2, t3, t4：T1=t0 × 94%, t2=t0 × 97%, t3=t0-0.2, t4= t0+0.2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711463169.0A CN107975789A (en) | 2017-12-28 | 2017-12-28 | A kind of DC low-voltage superhigh temperature steam superheating device and control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711463169.0A CN107975789A (en) | 2017-12-28 | 2017-12-28 | A kind of DC low-voltage superhigh temperature steam superheating device and control method |
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| CN107975789A true CN107975789A (en) | 2018-05-01 |
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|---|---|---|---|
| CN201711463169.0A Pending CN107975789A (en) | 2017-12-28 | 2017-12-28 | A kind of DC low-voltage superhigh temperature steam superheating device and control method |
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|---|---|---|---|---|
| US4041908A (en) * | 1976-01-22 | 1977-08-16 | Moorhead Machinery & Boiler Co. | Super heater |
| JPH10267219A (en) * | 1997-03-28 | 1998-10-09 | Kubota Corp | Control method of external combustion superheater |
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| CN101002054A (en) * | 2004-07-13 | 2007-07-18 | 清明Cs（株式会社） | Once-through boiler |
| CN201310875Y (en) * | 2008-10-15 | 2009-09-16 | 中国石油天然气集团公司 | Fuel gas superheated steam generator with dust blowing and removing system |
| CN203395901U (en) * | 2013-07-02 | 2014-01-15 | 庞振平 | Movable steam and hot water integral generator |
| CN205402678U (en) * | 2016-02-25 | 2016-07-27 | 上海协能环保科技有限公司 | Gas over heater |
| CN106090863A (en) * | 2016-07-21 | 2016-11-09 | 浙江上能锅炉有限公司 | High-efficient energy-saving steam generator |
| CN106195982A (en) * | 2016-08-25 | 2016-12-07 | 浙江蓝鼎节能科技有限公司 | Heating unit and include the steam generator of this heating unit |
| CN106949461A (en) * | 2017-05-08 | 2017-07-14 | 浙江上能锅炉有限公司 | A kind of steam generator combustion system |
| CN206695115U (en) * | 2017-05-08 | 2017-12-01 | 浙江上能锅炉有限公司 | A kind of steam generator combustion system |
| CN208011689U (en) * | 2017-12-28 | 2018-10-26 | 上海四方无锡锅炉工程有限公司 | A kind of DC low-voltage superhigh temperature steam superheating device |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4041908A (en) * | 1976-01-22 | 1977-08-16 | Moorhead Machinery & Boiler Co. | Super heater |
| JPH10267219A (en) * | 1997-03-28 | 1998-10-09 | Kubota Corp | Control method of external combustion superheater |
| CN2304853Y (en) * | 1997-04-25 | 1999-01-20 | 郭小山 | Computer controlling direct flow hot water and steam generator |
| CN101002054A (en) * | 2004-07-13 | 2007-07-18 | 清明Cs（株式会社） | Once-through boiler |
| CN2793547Y (en) * | 2004-11-26 | 2006-07-05 | 北京迪威尔石油天然气技术开发有限公司 | Overheat steaming furnace |
| CN201310875Y (en) * | 2008-10-15 | 2009-09-16 | 中国石油天然气集团公司 | Fuel gas superheated steam generator with dust blowing and removing system |
| CN203395901U (en) * | 2013-07-02 | 2014-01-15 | 庞振平 | Movable steam and hot water integral generator |
| CN205402678U (en) * | 2016-02-25 | 2016-07-27 | 上海协能环保科技有限公司 | Gas over heater |
| CN106090863A (en) * | 2016-07-21 | 2016-11-09 | 浙江上能锅炉有限公司 | High-efficient energy-saving steam generator |
| CN106195982A (en) * | 2016-08-25 | 2016-12-07 | 浙江蓝鼎节能科技有限公司 | Heating unit and include the steam generator of this heating unit |
| CN106949461A (en) * | 2017-05-08 | 2017-07-14 | 浙江上能锅炉有限公司 | A kind of steam generator combustion system |
| CN206695115U (en) * | 2017-05-08 | 2017-12-01 | 浙江上能锅炉有限公司 | A kind of steam generator combustion system |
| CN208011689U (en) * | 2017-12-28 | 2018-10-26 | 上海四方无锡锅炉工程有限公司 | A kind of DC low-voltage superhigh temperature steam superheating device |
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Address after: 214000 29 Hu Tai Road, Bindi Industrial Park, Binhu District, Wuxi, Jiangsu Applicant after: Shanghai Sifang Wuxi Boiler Engineering Co., Ltd. Address before: 214000 29 Hu Tai Road, Bindi Industrial Park, Binhu District, Wuxi, Jiangsu Applicant before: Wuxi Bole Energy Technology Co Ltd |