CN102149985A - Apparatus for recovering vent steam and drain - Google Patents
Apparatus for recovering vent steam and drain Download PDFInfo
- Publication number
- CN102149985A CN102149985A CN2009801346269A CN200980134626A CN102149985A CN 102149985 A CN102149985 A CN 102149985A CN 2009801346269 A CN2009801346269 A CN 2009801346269A CN 200980134626 A CN200980134626 A CN 200980134626A CN 102149985 A CN102149985 A CN 102149985A
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- Prior art keywords
- steam
- water
- heating part
- evaporated vapor
- condensate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
- F01K13/02—Controlling, e.g. stopping or starting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/16—Arrangements for water drainage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
Abstract
The present invention relates to an apparatus for recovering re-evaporated steam and condensate, and in particular, to an apparatus for mixing the steam re-evaporated from condensate that is discharged from a heating unit for heating an object to be treated, with high-temperature steam supplied from a boiler, and for resupplying the mixed steam to the heating unit. To this end, the apparatus comprises: a steam recovery unit for recovering the condensate discharged from a heating unit for heating an object to be treated, and the steam re-evaporated from the condensate, and then supplying the recovered re-evaporated steam to a steam pressurizing unit and the recovered condensate to a boiler; and the steam pressurizing for mixing the re-evaporated steam supplied from the steam recovery unit, with high-temperature steam supplied from the boiler and then supplying the mixed steam to the heating unit. Therefore, with a closed circuit, the apparatus can recover the whole quantity of the re-evaporated steam and condensate for use, prevent the release of steam into the air and utilize a latent heat contained in the condensate, thereby improving the efficiency of energy consumption.
Description
Technical field
The present invention relates to a kind of evaporated vapor again and condensed-water recovering device, relate in more detail a kind of will be from the condensate water that discharge the heating part of heat treated object again evaporation evaporated vapor with from boiler supplying to high-temperature steam mix after, be fed to evaporated vapor again and condensed-water recovering device in the heating part again.
Background technology
General steam heater is fed to heating in the heating part that is formed on the heat exchanger with steam, and is connected with condensed-water recovering device, is used to discharge the condensate water that heating produces.
Fig. 1 is the structure calcspar of traditional steam heater, and as shown in the figure, it comprises: boiler 10 is used to form high-temperature steam; Heating part 30,30 ', be used for being fed to the processing object from the high-temperature steam that this boiler 10 produces and heat; Automatic steam trap Trap 40,40 ', be used for from the heating part only making in 30,30 ' condensate water to discharge; The tank 50 that condenses is used for collecting the condensate water of discharging from this Automatic steam trap Trap 40,40 ', and from outside supply supplementing water; And supply-water pump 51, the condensate water that is used for being collected in the tank 50 that condenses is fed in the boiler 10.
After being delivered to the burned again device heating of condensate water in the boiler 10 by supply-water pump 51, be fed to first heating part 30 and second heating part 30 ' through steam header 20 and check-valves 31,31 ' with the state of high pressure superheated steam super-heated vapor.
Be fed to steam in first and second heating part 30,30 ' in first and second heating part 30,30 ' by the heat exchange cooling and condense, be the wet saturated steam state.
At this moment, steam is come together in respectively in the Automatic steam trap Trap 40,40 ' that is arranged on first and second 30,30 ' bottom, heating part by the condensate water of condensing and producing.
Automatic steam trap Trap 40,40 ' general bucket formula Bucket or the float-ball type Float of using, at Automatic steam trap Trap 40, when flowing into a certain amount of above condensate water in 40 ', bucket or the ball float buoyancy of water that condensed rises, the valve 41,41 ' of Automatic steam trap Trap is unlocked, and condensate water is discharged to condense in the tank 50.
From Automatic steam trap Trap 40,40 ' the condensate water that is discharged in the tank 50 that condenses begins to reduce pressure, a part just is evaporated in the atmosphere, and all the other condensate water that remain in the tank 50 that condenses then with after the supplementing water of outside supply is mixed are fed to the boiler by supply-water pump 51.
Supplementing water generally by the additional tank 60 and 61 supplies of supplementing water supply-water pump of extra setting, can certainly be provided with open and close valve 62 on pipeline.
But still there are the following problems for aforesaid traditional steam heater:
Though in this heating part 30,30 ' is provided with Automatic steam trap Trap 40,40 ', discharge to prevent steam inside, the latent heat that more preferably prevents to be included in the steam leaks into outside the heating part 30,30 ', but from Automatic steam trap Trap 40, considerable amount disappears with regard to being evaporated in the atmosphere in the 40 ' condensate water that is discharged in the tank 50 of condensing, and causes the extremely low problem of energy efficiency.
And, need to continue the supplementing water that supply is equivalent to be lost to the quantity of steam in the atmosphere, therefore need a large amount of waters, and owing to the supplementing water of normal temperature is mixed the state of lowering the temperature in a large number and is supplied water to boiler 10, the result is heated into high-temperature steam in order to make it, need append to consume more fuel.
In addition, in order to improve the problem that this Automatic steam trap Trap caused of using, prior art is suggested in the past, from first and second heating part 30, Automatic steam trap Trap is removed in 30 ' bottom, and in order to utilize gravity to collect condensate water, than first and second heating part 30,30 ' more the below hermetic type supply flume is set, by supply-water pump the water in the supply flume is forced to be fed in the boiler.
Yet, can not utilize gravity to transfer condensate water though be not provided with the steam heater of Automatic steam trap Trap, if just emitting to atmosphere, the part that do not let off steam can't form differential pressure, cause thermal cycle to become problem slowly.
And, when startup is used to transmit the supply-water pump that is trapped in the condensate water in the supply flume, can produce the problem that cavitates and cause supply-water pump to damage.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of energy will be from the condensate water that discharge the heating part of heat treated object again the evaporated vapor of evaporation be fed to boiler evaporated vapor and condensed-water recovering device again in the heating part again with after high-temperature steam from boiler supplying mixes.
To achieve these goals, boiler provided by the present invention is evaporated vapor and condensed-water recovering device again, comprise Steam Recovery portion, in order to reclaim the condensate water discharge from the heating part of heat treated object and from the steam of this condensate re-evaporation, this evaporated vapor again that is recovered is fed to steam pressurized portion, and this condensate water is fed to boiler; And steam pressurized portion, in order to will from the evaporated vapor again of this Steam Recovery portion supply be fed to this heating part after high-temperature steam from this boiler supplying mixes.
And this Steam Recovery portion is characterised in that, comprises container for evaporation, and it is connected with this heating part, and the condensate water that produces by heat exchange in this heating part flows into wherein, to reclaim the evaporated vapor that evaporates again from this condensate water that is flowed into; And supply-water pump, force to be fed in this boiler in order to the condensate water that will flow in this container for evaporation.
In addition, it is characterized in that comprising: water level sensor, be arranged on this container for evaporation one side, flow into condensate water water level in this container for evaporation in order to detection; And the water level control part, according to by the detected water level of this water level sensor, move to control this supply-water pump to this supply-water pump output action control signal.
In addition, it is characterized in that also comprising: overflow valve is arranged on this container for evaporation one side, in order to prevent to flow into the caused overflow of condensate water in this container for evaporation.
As for this steam pressurized portion, it is characterized in that comprising: steam recompression control valve, in order to will from the high-temperature steam of this boiler supplying with supply from this Steam Recovery portion after evaporated vapor mixes again, be fed to this heating part; Pressure inductor is arranged between this steam recompression control valve and this heating part, is fed to the steam pressure of this heating part in order to detection; And the pressure control part, according to by the detected pressure of this pressure inductor, move to control this steam recompression control valve to this steam recompression control valve output action control signal.
The invention effect
As mentioned above,, under the state that constitutes closed loop, have and all to reclaim the advantage of using again evaporated vapor and condensate water according to evaporated vapor more of the present invention and condensed-water recovering device.
And, can cut off steam according to evaporated vapor more of the present invention and condensed-water recovering device and emit, and utilize the latent heat that is included in the condensate water, so have the advantage that can improve energy use efficiency to atmosphere.
And, can improve energy use efficiency according to evaporated vapor more of the present invention and condensed-water recovering device, and then have the use of the steam of minimizing, and significantly be reduced to the advantage of the rate of fuel consumption amount that steam takes place.
In addition,, remove the steam trap that hinders energy flow, steam flow rate is accelerated continuously,, maximize, improve the advantage of heat-transfer effect thereby have the heat exchanger effectiveness of making to improve complex heat transfer coefficient according to evaporated vapor more of the present invention and condensed-water recovering device.
Description of drawings
Fig. 1 is the calcspar that shows according to the steam heater formation of prior art.
Fig. 2 utilizes the steam generator system according to evaporated vapor more of the present invention and condensed-water recovering device to constitute calcspar.
Fig. 3 is the calcspar that shows according to evaporated vapor more of the present invention and condensed-water recovering device formation.
Fig. 4 shows the profile that constitutes according to steam recompression control valve in evaporated vapor more of the present invention and the condensed-water recovering device.
Fig. 5 and Fig. 6 show according to evaporated vapor more of the present invention and condensed-water recovering device the front/rear oscillogram by time steam use amount is being set.
Fig. 7 and Fig. 8 show according to evaporated vapor more of the present invention and condensed-water recovering device the front/rear oscillogram by the time Fuel Consumption is being set.
The specific embodiment
Describe as follows below with reference to accompanying drawing to preferred embodiment according to the present invention.
Fig. 2 is that to utilize steam generator system according to evaporated vapor more of the present invention and condensed-water recovering device to constitute calcspar, Fig. 3 be to show the calcspar that constitutes according to evaporated vapor more of the present invention and condensed-water recovering device, and Fig. 4 shows the profile that constitutes according to steam recompression control valve in evaporated vapor more of the present invention and the condensed-water recovering device.
At first, to constituent element same as the prior art, will do not explained over and over again, and constituent element same as the prior art will be used same symbol.
To shown in Figure 4, comprise according to evaporated vapor more of the present invention and condensed-water recovering device: boiler 10 is used to form high-temperature steam as Fig. 2; First heating part 30 and second heating part 30 ' will be supplied with the heat treated object by steam header 20 from the high-temperature steam that boiler 10 produces; Steam pressurized portion 100, supply steam is to heat this first and second heating part 30,30 '; Steam Recovery portion 200 is used for collecting from this first and second heating part 30,30 ' condensate water of being discharged, and reclaims the evaporated vapor again that produces from this condensate water; And evaporated vapor tube connector 300, this that will reclaim from this Steam Recovery portion 200 evaporated vapor again is fed to steam pressurized portion 100; Preferably constitute with closed loop.
Steam pressurized portion (100) be will from the high-temperature steam of boiler 10 supply with supply from Steam Recovery portion 200 after evaporated vapor mixes again, be fed to first and second heating part 30, member in 30 ', it is by comprising that steam recompresses control valve 110, pressure inductor 130 and pressure control part and forms.
Steam recompression control valve 110 will from the high-temperature steam of boiler 10 supplies with by evaporated vapor tube connector 300 from being fed in first and second heating part 30,30 ' after evaporated vapor mixes again that Steam Recovery portion 200 supplies.
Steam recompression control valve 110 more specifically is described, it comprises high-temperature steam inflow entrance 111, is used to make the high-temperature steam from boiler 10 supplies to flow into wherein; The evaporated vapor inflow entrance 112 again, are used to make the evaporated vapor again from 200 supplies of Steam Recovery portion to flow into wherein; Steam discharge opening 113 is spued after being used to make this high-temperature steam and evaporated vapor mixing mutually again; Actuator 120 is used to control the on-off action that steam recompresses control valve 110; Opening 121 moves along with the action of actuator 120; The first switching portion 122 is arranged on the opening 121 of actuator 120, opens and closes first through hole 114 that high-temperature steam inflow entrance 111 is connected with steam discharge opening 113 according to the action of actuator 120; And the second switching portion 123, be used to open and close second through hole 115 that evaporated vapor inflow entrance 112 again is connected with steam discharge opening 113.
So, when steam recompression control valve 110 passes through first through hole 114 by 113 ejections of steam discharge opening after the high-temperature steam solid arrow flow into high-temperature steam inflow entrance 111, produce pressure at second through hole, 115 places of evaporated vapor inflow entrance 112 again and reduce phenomenon, ambient air is attracted and produces vacuum pressure negative pressure thus, is ejected after feasible evaporated vapor dotted arrow again and high-temperature steam solid arrow are mixed together.
In addition, in the present embodiment, describe for example according to pressure inductor 130 and pressure control part 140, but, pressure inductor 130 can also be designed to detect the temperature inductor of vapor (steam) temperature, pressure control part 140 is designed to temperature control device according to the action control signal of the detected temperature of this temperature inductor output actuator 120, and this is self-evident to affiliated field personnel.
Container for evaporation Flash Vessel:210 and first and second heating part 30,30 ' connects, with so that in first and second heating part 30, the condensate water that produces by heat exchange in 30 ' is by check-valves 41,41 ' discharges the back flows into wherein, and will be recovered to and be fed to steam recompression control valve 110 after the separated evaporated vapor in evaporation back reclaims again in the condensate water in the container for evaporation 210 again.
Then, container for evaporation 210 since condensate water be contained in wherein jointly under the state that separates with evaporated vapor again, so can optionally discharge condensate water and evaporated vapor again.
And, container for evaporation 210 can be arranged on and first and second heating part 30,30 ' is provided with on the highly identical height, also can be arranged on and be lower than on the position that first and second heating part 30,30 ' is provided with height, or be higher than first and second heating part 30,30 ' is provided with on the position of height, be preferably disposed on be lower than first and second heating part 30,30 ' be provided with the height the position on, condensate water is fallen naturally by gravity is easier to move.
Supply-water pump 220 is used for making the condensate water that flow into container for evaporation 210 to force to be fed in the boiler 10.
Water level control part 240 is used for analyzing from these water level sensor 230 detected water levels, and according to the result who is analyzed, will output to supply-water pump for the control signal of control supply-water pump action.
As for undeclared symbol 61 are supply-water pumps that the water that is used for replenishing tank 60 is fed to boiler 10, and undeclared symbol 62 is valves.
Course of action according to evaporated vapor more of the present invention and condensed-water recovering device below will be described.
When moving in the early stage, heated high-temperature steam continues to be fed to steam recompression control valve 110 through manifold 20 in boiler 10, till first and second heating part 30,30 ' temperature arrives the temperature that the user was scheduled to.
Initial stage is when moving, because the temperature of first and second heating part 30,30 ' is lower, so in the heat exchanging process in first and second heating part 30,30 ' can produce a large amount of condensate water, and the condensate water that is produced flow in the container for evaporation 210 by check-valves 41,41 '.
The condensate water water level that water level control part 240 detects in the container for evaporation 210 by water level sensor 230 when this detected condensate water water level reaches predetermined water level, is opened supply-water pump 220 condensate water in the container for evaporation 210 is transported in the boiler 10.
And, when in excessive condensate water flow into container for evaporation 210, producing the condensate water overflow phenomena, open overflow valve 250 condensate water that overflow produced is delivered in the additional tank 60.
In addition, initial stage action after after a while, part produces evaporation again in the condensate water that flow into container for evaporation 210, this moment again evaporation steam by evaporated vapor tube connector 300 be fed to steam recompression control valve 110 in evaporated vapor inflow entrance 112.
The evaporated vapor again that is fed to again evaporated vapor inflow entrance 112 at the high-temperature steam that flows into by high-temperature steam inflow entrance 111 in the process that steam discharge opening 113 is discharged, around second through hole 115 that forms between evaporated vapor inflow entrance and the steam discharge opening 113 again, can produce vacuum and press negative pressure, thereby the evaporated vapor again that is fed to again evaporated vapor inflow entrance 112 be attracted the back be fed in first and second heating part 30,30 ' by steam discharge opening 113 with high-temperature steam.
Then, can reclaim and re-use the evaporated vapor again that to discard, can improve energy use efficiency, and utilize the vacuum in closed loop to press the differential pressure that is produced that steam flow rate is accelerated continuously, complex heat transfer coefficient can be improved, heat exchanger effectiveness can be improved simultaneously.
When first and second heating part 30,30 ' reaches predetermined temperature makes when reaching certain pressure by pressure inductor 130 detected steam pressures, pressure control part 140 is to actuator 120 output action control signals (Off signal), to finish the action of steam recompression control valve 110.
Thus, be fed to first and second heating part 30 at high-temperature steam by steam recompression control valve 110, in 30 ' the process, the steam that evaporates again from container for evaporation 210 is fed to first and second heating part 30 because of occurring in after vacuum the steam recompression control valve 110 presses negative pressure to be attracted, 30 ', can use evaporated vapor more thus.
Fig. 5 and Fig. 6, Fig. 7 and Fig. 8 show respectively according to evaporated vapor more of the present invention and condensed-water recovering device the oscillogram of front/rear mensuration by time steam use amount and Fuel Consumption is being set.
As shown in Figure 5, according to evaporated vapor more of the present invention and condensed-water recovering device before being provided with, by used quantity of steam of time on average greatly slightly 6,000kg/hr, and the back is set by used quantity of steam of time on average greatly slightly 4,000Kg/hr, as shown in Figure 6, this shows can reduce by the use of evaporated vapor more rough 2, the steam use amount of 000Kg/hr.
And, as shown in Figure 7, according to evaporated vapor more of the present invention and condensed-water recovering device before being provided with, by the average 660l/hr greatly slightly of fuel quantity that the time consumed, and the back is set as shown in Figure 8 by fuel quantity that the time consumed, mean consumption rough 430l/hr, this shows the Fuel Consumption that can reduce rough 230l/hr by the use of evaporated vapor again.
So, can make from boiler 10 vapor supplied amounts and reduce to the amount of evaporated vapor again that produces of being equivalent to the container for evaporation 210, and then the Fuel Consumption that is consumed in the boiler 10 is reduced to be equivalent to from boiler 10 vapor supplied reductions.
More than to specific preferred embodiment of the present invention done the diagram and explanation, but the present invention is not limited to the foregoing description, every personnel that have common knowledge under of the present invention in the technical field can implement numerous variations and modification in the category that does not break away from the technological thought main idea of the present invention that following claim scope put down in writing.
Claims (4)
1. the evaporated vapor again and the condensed-water recovering device of a boiler is characterized in that comprising:
Steam Recovery portion is in order to reclaim the condensate water discharge from the heating part of heat treated object and from the steam of this condensate re-evaporation, this evaporated vapor again that is recovered to be fed to steam pressurized portion, and this condensate water is fed in the boiler; And steam pressurized portion, in order to will from the evaporated vapor again of this Steam Recovery portion supply be fed to this heating part after high-temperature steam from this boiler supplying mixes, this steam pressurized portion comprises: steam recompression control valve, in order to will from the high-temperature steam of this boiler supplying with supply from this Steam Recovery portion after evaporated vapor mixes, be fed to this heating part; Pressure inductor is arranged between this steam recompression control valve and this heating part, is fed to the steam pressure of this heating part in order to detection; And the pressure control part, according to by the detected pressure of this pressure inductor, move to control this steam recompression control valve to this steam recompression control valve output action control signal.
2. evaporated vapor more according to claim 1 and condensed-water recovering device is characterized in that:
This steam pressurized portion comprises container for evaporation, is connected with this heating part, and the condensate water that produces by heat exchange in this heating part flows in it, to reclaim the evaporated vapor that evaporates again from this condensate water that is flowed into; And supply-water pump, force to be fed in this boiler in order to the condensate water that will flow in this container for evaporation.
3. evaporated vapor more according to claim 2 and condensed-water recovering device is characterized in that comprising: water level sensor, be arranged on this container for evaporation one side, and flow into condensate water water level in this container for evaporation in order to detection; And the water level control part, according to by the detected water level of this water level sensor, move to control this supply-water pump to this supply-water pump output action control signal.
4. evaporated vapor more according to claim 3 and condensed-water recovering device is characterized in that also comprising: overflow valve is arranged on this container for evaporation one side, in order to prevent to flow into the caused overflow of condensate water in this container for evaporation.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2008-0112781 | 2008-11-13 | ||
| KR1020080112781A KR100898380B1 (en) | 2008-11-13 | 2008-11-13 | Apparatus for recovering vent steam and drain |
| PCT/KR2009/006259 WO2010056000A2 (en) | 2008-11-13 | 2009-10-28 | Apparatus for recovering re-evaporated steam and condensate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102149985A true CN102149985A (en) | 2011-08-10 |
| CN102149985B CN102149985B (en) | 2013-12-25 |
Family
ID=40862262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801346269A Active CN102149985B (en) | 2008-11-13 | 2009-10-28 | Apparatus for recovering vent steam and drain |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20110214623A1 (en) |
| JP (1) | JP5672615B2 (en) |
| KR (1) | KR100898380B1 (en) |
| CN (1) | CN102149985B (en) |
| WO (1) | WO2010056000A2 (en) |
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| CN108343942A (en) * | 2018-01-31 | 2018-07-31 | 王炜杰 | A kind of steam afterheat recovery device |
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| KR101215410B1 (en) | 2010-11-25 | 2012-12-26 | 영일펌프테크(주) | Apparatus for recovering vent steam and drain |
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| JP2007247971A (en) * | 2006-03-16 | 2007-09-27 | Tlv Co Ltd | Wastewater treatment apparatus |
| JP5135768B2 (en) * | 2006-11-09 | 2013-02-06 | 三浦工業株式会社 | Operation method of steam boiler equipment |
| CN100540996C (en) * | 2007-11-16 | 2009-09-16 | 冼泰来 | Vapour recovery warehouse |
| JP5141613B2 (en) * | 2009-03-25 | 2013-02-13 | パナソニック株式会社 | Ultrasonic flow meter |
-
2008
- 2008-11-13 KR KR1020080112781A patent/KR100898380B1/en active IP Right Review Request
-
2009
- 2009-10-28 WO PCT/KR2009/006259 patent/WO2010056000A2/en active Application Filing
- 2009-10-28 CN CN2009801346269A patent/CN102149985B/en active Active
- 2009-10-28 JP JP2011536234A patent/JP5672615B2/en active Active
-
2011
- 2011-05-11 US US13/105,106 patent/US20110214623A1/en not_active Abandoned
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953424A (en) * | 2016-04-27 | 2016-09-21 | 珠海格力电器股份有限公司 | Waste heat recovery and heat supply system for power plant |
| CN105953424B (en) * | 2016-04-27 | 2017-12-26 | 珠海格力电器股份有限公司 | Residual heat of electric power plant reclaims heating system |
| CN108343942A (en) * | 2018-01-31 | 2018-07-31 | 王炜杰 | A kind of steam afterheat recovery device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102149985B (en) | 2013-12-25 |
| KR100898380B1 (en) | 2009-05-18 |
| WO2010056000A2 (en) | 2010-05-20 |
| US20110214623A1 (en) | 2011-09-08 |
| WO2010056000A3 (en) | 2010-08-05 |
| JP5672615B2 (en) | 2015-02-18 |
| JP2012508862A (en) | 2012-04-12 |
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