CN109268813A - A kind of recoverying and utilizing method and its device of oxygen-eliminating device waste steam exhausting - Google Patents
A kind of recoverying and utilizing method and its device of oxygen-eliminating device waste steam exhausting Download PDFInfo
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- CN109268813A CN109268813A CN201811131009.0A CN201811131009A CN109268813A CN 109268813 A CN109268813 A CN 109268813A CN 201811131009 A CN201811131009 A CN 201811131009A CN 109268813 A CN109268813 A CN 109268813A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/50—Feed-water heaters, i.e. economisers or like preheaters incorporating thermal de-aeration of feed-water
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- General Engineering & Computer Science (AREA)
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Abstract
The present invention relates to waste gas recoveries to utilize technical field, and disclose the recoverying and utilizing method and its device of a kind of oxygen-eliminating device waste steam exhausting, the following steps are included: S1. high-temperature steam is entered in deoxygenation tower head by the first admission line, steam heating demineralized water keeps demineralized water in a saturated state, demineralized water ullage space pressure is made of steam pressure substantially in this way, oxygen and other gases in demineralized water will escape the water surface, these escaping gas and steam are entered in gland heater by the exhaust emission pipe of oxygen-eliminating device;S2. enter the gas contact heat-exchanging copper pipe in gland heater, flowing has cooling medium in heat exchange copper tube, and the steam in gas condenses into condensed water to the cold.The discharge waste vapour of higher-pressure deaerator is introduced directly into turbine shaft seal gas leakage conveyance conduit by the recoverying and utilizing method and its device of the oxygen-eliminating device waste steam exhausting, and the two enters cooling its thermal energy of recycling of gland heater and condensed water together.
Description
Technical field
The present invention relates to waste gas recoveries to utilize technical field, specially a kind of recycling side of oxygen-eliminating device waste steam exhausting
Method and its device.
Background technique
Thermal type higher-pressure deaerator is widely used in thermal power plant, its working principle is that holding solution law-henry using gas
Sharp law and the composition of liquid level total pressure law-Dalton's law make demineralized water be in saturation shape using steam heating demineralized water
State, such demineralized water ullage space pressure are made of steam pressure substantially, and the oxygen and other gases in demineralized water will
The water surface is escaped, these escaping gas are discharged into atmosphere by the pressure of itself by oxygen-eliminating device exhaust emission pipe, and demineralized water is made
In oxygen be eliminated, it is therefore prevented that the oxygen corrosion of the steam-water pipe of high pressure water supply system and boiler system, but oxygen and its
During exclusion, some vapor is also discharged in atmosphere its gas simultaneously, in this way, quality of steam and thermal loss are brought,
The steam and its condensed water of discharge simultaneously carry out certain negative shadow to the workshop steel frame construction and ground environment sanitary towel of surrounding
It rings.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of recoverying and utilizing method of oxygen-eliminating device waste steam exhausting and its
Device has the advantages that Steam Recovery, heat recovery, solves the problems, such as oxygen-eliminating device quality of steam and thermal loss.
(2) technical solution
To realize above-mentioned Steam Recovery, the purpose of heat recovery, the invention provides the following technical scheme: a kind of oxygen-eliminating device
The recoverying and utilizing method of waste steam exhausting, comprising the following steps:
S1. high-temperature steam is entered in deoxygenation tower head by the first admission line, and steam heating demineralized water makes at demineralized water
In saturation state, such demineralized water ullage space pressure is made of steam pressure substantially, oxygen in demineralized water and other
Gas will escape the water surface, these escaping gas and steam enter axle envelope by the exhaust emission pipe of oxygen-eliminating device and heats
In device;
S2. enter the gas contact heat-exchanging copper pipe in gland heater, flowing has cooling medium, gas in heat exchange copper tube
In steam condense into condensed water to the cold, the subsequent high-temperature steam into gland heater is while condensation, heating front
The condensed water of generation;
S3. heated condensed water is flowed into gas trap by steam trap and drainpipe, takes condensed water and condensed water
The heat boiler of feeding of band is reused, and realizes the recycling to oxygen-eliminating device exhaust gas.
Preferably, the gas that cannot be condensed in the gland heater is discharged in atmosphere by exhaust pipe.
A kind of recycle device of the recoverying and utilizing method for oxygen-eliminating device waste steam exhausting, including deoxygenation water tank and outer
Shell, fixed at the top center of the deoxygenation water tank to be communicated with deoxygenation tower head, the side wall of the deoxygenation tower head is fixed to be communicated with the
The bottom fixation of one admission line and water inlet line, the deoxygenation water tank is communicated with outlet conduit, and the side of the shell is fixed
It is communicated with tee tube, fixation is communicated with the second admission line and exhaust pipe respectively at both ends of the tee tube far from shell
Road, is provided with pipe valve on the exhaust emission pipe, and the inner top of the shell is fixedly connected with partition, the partition and outer
Gap is provided between the interior bottom of shell, the inside of shell is divided into the first heat exchanging chamber and the second heat exchanging chamber by the partition, described
The inner wall of first heat exchanging chamber and the second heat exchanging chamber is fixedly connected with heat exchange copper tube jointly, is provided with water below the shell
Pump, water pump one end fixation are communicated with the first connecting tube, the bottom of first connecting tube one end and shell far from water pump
It is fixedly linked, and is connected with one end of heat exchange copper tube, the other end fixation of the water pump is communicated with the second connecting tube, described
The bottom of the second connecting tube one end and shell far from water pump is fixedly linked, and is connected with the other end of heat exchange copper tube, described
The steam extraction mechanism being connected with interior of shell is provided on shell, the top of the shell, which is fixed, is communicated with exhaust pipe, described outer
The bottom of shell is fixed to be communicated with drainpipe, and the drainpipe is communicated with condenser, the drainpipe far from one end fixation of shell
On be provided with steam trap.
Preferably, the steam extraction mechanism includes air ejector, and throat's fixation of the air ejector is communicated with third connecting tube,
The third connecting tube is connected with the first heat exchanging chamber, and the end of the air ejector is fixed to be communicated with the 4th connecting tube, and described the
Four connecting tubes are connected with the second heat exchanging chamber, and heat exchanger is provided in first connecting tube, is fixedly connected on the heat exchanger
There is heating tube, the side wall of the heat exchanger is fixedly connected with heating water tank, and the heating tube is located at the inside of heating water tank, institute
The top fixation for stating heating water tank is communicated with steam pipe, and the steam pipe is connected with the end of air ejector.
Preferably, it is fixedly linked by flange between the exhaust emission pipe, the second admission line and tee tube.
Preferably, the bottom of the deoxygenation water tank and shell is fixedly connected to supporting leg, and the bottom of the supporting leg is solid
Surely it is connected with mounting plate, offers mounting hole on the mounting plate.
Preferably, the lateral wall of first admission line, exhaust emission pipe, the second admission line and tee tube according to
It is secondary to be socketed with thermal insulation layer and noise reduction layer.
(3) beneficial effect
Compared with prior art, the present invention provides the recoverying and utilizing method and its device of a kind of oxygen-eliminating device waste steam exhausting,
Have it is following the utility model has the advantages that
1, the recoverying and utilizing method and its device of the oxygen-eliminating device waste steam exhausting, by the setting of shell, high-temperature steam passes through
First admission line enters in deoxygenation tower head, and steam heating demineralized water keeps demineralized water in a saturated state, such desalination aqueous
Face upper space pressure is made of steam pressure substantially, and the oxygen and other gases in demineralized water will escape the water surface, these ease
Gas and steam out is entered in gland heater by the exhaust emission pipe of oxygen-eliminating device, into gland heater
Gas contact heat-exchanging copper pipe has cooling medium by water pump flowing in heat exchange copper tube, and the steam in gas condenses into condensation to the cold
Water, the subsequent high-temperature steam into gland heater is while condensation, and the condensed water that heating front generates is heated
Condensed water is flowed into gas trap by steam trap and drainpipe, and the heat boiler of feeding for carrying condensed water and condensed water is again
It uses, realizes the recycling to oxygen-eliminating device exhaust gas.
2, the recoverying and utilizing method and its device of the oxygen-eliminating device waste steam exhausting, by the setting of air ejector, in heat exchange copper tube
The cooling medium being heated is flowed out to the outside of shell, and the cooling medium being heated is cooled down again by heat exchanger, is used
To be recycled, the heat that heat exchanger is swapped out heats the water in heating water tank, it is made to generate steam, and steam passes through steam
Pipe enters the negative throat noz(zle) of air ejector, and steam flow rate increases pressure reduction, forms negative pressuren zone in nozzle throat region, this area with
First heat exchanging chamber is connected to form certain negative pressure, and the exhaust gas and shaft-packing leakage in oxygen-eliminating device are introduced under the attraction of negative pressure
First heat exchanging chamber, non-condensing steam and other gases are inhaled into nozzle throat negative pressuren zone in the first heat exchanging chamber of fraction, and add
Steam in boiler forms gaseous mixture and enters the second heat exchanging chamber, and all steam are cooled condensation substantially in the second heat exchanging chamber
Cheng Shui, the other gases that cannot be condensed then pass through exhaust pipe and arrange to atmosphere.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the recycle device of oxygen-eliminating device waste steam exhausting proposed by the present invention.
In figure: 1 deoxygenation water tank, 2 outlet conduits, 3 supporting legs, 4 first admission lines, 5 deoxygenation tower heads, 6 water inlet lines, 7
Pipe valve, 8 exhaust emission pipes, 9 second admission lines, 10 tee tubes, 11 steam pipes, 12 shells, 13 heat exchange copper tubes, 14 pumpings
Device, 15 partitions, 16 exhaust pipes, 17 condensers, 18 drainpipes, 19 steam traps, 20 second connecting tubes, 21 water pumps, 22 heat exchangers,
23 heating tubes, 24 heating water tanks.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
Referring to Fig. 1, a kind of recoverying and utilizing method of oxygen-eliminating device waste steam exhausting, comprising the following steps:
S1. high-temperature steam is entered in deoxygenation tower head by the first admission line, and steam heating demineralized water makes at demineralized water
In saturation state, such demineralized water ullage space pressure is made of steam pressure substantially, oxygen in demineralized water and other
Gas will escape the water surface, these escaping gas and steam enter axle envelope by the exhaust emission pipe of oxygen-eliminating device and heats
In device;
S2. enter the gas contact heat-exchanging copper pipe in gland heater, flowing has cooling medium, gas in heat exchange copper tube
In steam condense into condensed water to the cold, the subsequent high-temperature steam into gland heater is while condensation, heating front
The condensed water of generation;
S3. heated condensed water is flowed into gas trap by steam trap and drainpipe, takes condensed water and condensed water
The heat boiler of feeding of band is reused, and realizes the recycling to oxygen-eliminating device exhaust gas.
The gas that cannot be condensed in gland heater is discharged in atmosphere by exhaust pipe.
A kind of recycle device of the recoverying and utilizing method for oxygen-eliminating device waste steam exhausting, including deoxygenation water tank 1 and outer
Shell 12, fixed at the top center of deoxygenation water tank 1 to be communicated with deoxygenation tower head 5, the side wall fixation of deoxygenation tower head 5 is communicated with first
Admission line 4 and water inlet line 6, the bottom of deoxygenation water tank 1 is fixed to be communicated with outlet conduit 2, the fixed connection in the side of shell 12
There is tee tube 10, fixation is communicated with the second admission line 9 and exhaust emission pipe respectively at both ends of the tee tube 10 far from shell 12
8, the second admission line 9 is connected at the axle envelope of steam turbine, to collect shaft-packing leakage, is provided with pipe valve on exhaust emission pipe 8
7, the inner top of shell 12 is fixedly connected with partition 15, is provided with gap, partition between partition 15 and the interior bottom of shell 12
The inside of shell 12 is divided into the first heat exchanging chamber and the second heat exchanging chamber by 15, and the inner wall of the first heat exchanging chamber and the second heat exchanging chamber is common
It is fixedly connected with heat exchange copper tube 13, the lower section of shell 12 is provided with water pump 21, and the fixation of 21 one end of water pump is communicated with the first connection
Pipe, the one end of the first connecting tube far from water pump 21 and the bottom of shell 12 are fixedly linked, and are connected with one end of heat exchange copper tube 13
Logical, the other end of water pump 21 is fixed to be communicated with the second connecting tube 20, the one end of the second connecting tube 20 far from water pump 21 and shell 12
Bottom be fixedly linked, and be connected with the other end of heat exchange copper tube 13, be provided on shell 12 and be connected with inside shell 12
Logical steam extraction mechanism, the top of shell 12 is fixed to be communicated with exhaust pipe 16, and the bottom fixation of shell 12 is communicated with drainpipe 18,
Drainpipe 18 is communicated with condenser 17 far from one end fixation of shell 12, and steam trap 19 is provided on drainpipe 18.
Steam extraction mechanism includes air ejector 14, and the throat of air ejector 14 is fixed to be communicated with third connecting tube, third connecting tube with
First heat exchanging chamber is connected, and the end fixation of air ejector 14 is communicated with the 4th connecting tube, the 4th connecting tube and the second heat exchanging chamber phase
It is connected to, is provided with heat exchanger 22 in the first connecting tube, heating tube 23, the side wall of heat exchanger 22 are fixedly connected on heat exchanger 22
It is fixedly connected with heating water tank 24, heating tube 23 is located at the inside of heating water tank 24, and the top fixation of heating water tank 24 is communicated with
Steam pipe 11, steam pipe 11 are connected with the end of air ejector 14, make to keep tiny structure inside shell 12, so that axle envelope
Vapour does not leak.
It is fixedly linked by flange between exhaust emission pipe 8, the second admission line 9 and tee tube 10.
The bottom of deoxygenation water tank 1 and shell 12 is fixedly connected to supporting leg 3, and the bottom of supporting leg 3 is fixedly connected with peace
Loading board offers mounting hole on mounting plate, is provided with foundation bolt in mounting hole, is fixed by foundation bolt and ground, make to remove
Oxygen water tank 1 and shell 12 are placed more firm.
First admission line 4, exhaust emission pipe 8, the second admission line 9 and tee tube 10 lateral wall be successively socketed
There are thermal insulation layer and noise reduction layer, prevent pipeline from being heated by high-temperature gas and scalding people, while including pipeline by noise reduction layer, reduces
The noise generated after gas high velocity stream piping is propagated outward.
To sum up, the recoverying and utilizing method and its device of the oxygen-eliminating device waste steam exhausting, high-temperature steam pass through the first admission line
4 enter in deoxygenation tower head 5, and steam heating demineralized water keeps demineralized water in a saturated state, such demineralized water ullage space
Pressure is made of steam pressure substantially, and the oxygen and other gases in demineralized water will escape the water surface, these escaping gas and
Steam is entered in gland heater by the exhaust emission pipe 8 of oxygen-eliminating device, is changed into the gas contact in gland heater
Hot copper pipe 13 has cooling medium by the flowing of water pump 21 in heat exchange copper tube 13, and the steam in gas condenses into condensed water to the cold,
The cooling medium outflow being heated in heat exchange copper tube 13 is to the outside of shell 12, cooling Jie that will be heated by heat exchanger 22
Matter cools down again, and to be recycled, the heat that heat exchanger 22 is swapped out heats the water in heating water tank 24, makes it
Steam is generated, steam enters the negative throat noz(zle) of air ejector 14 by steam pipe 11, and steam flow rate increases pressure reduction, in nozzle
Throat region forms negative pressuren zone, this area is connected with the first heat exchanging chamber to form certain negative pressure, exhaust gas and axle envelope in oxygen-eliminating device
Gas leakage is introduced into the first heat exchanging chamber under the attraction of negative pressure, non-condensing steam and other gases in the first heat exchanging chamber of fraction
It is inhaled into nozzle throat negative pressuren zone, gaseous mixture is formed with the steam in heating water tank 24 and enters the second heat exchanging chamber, in the second heat exchange
Intracavitary all steam are cooled substantially condenses into water, and the other gases that cannot be condensed then pass through 16 row of exhaust pipe to atmosphere, after
The continuous high-temperature steam into gland heater is while condensation, the condensed water that heating front generates, heated condensed water
It is flowed into gas trap 17 by steam trap 19 and drainpipe 18, the heat boiler of feeding for carrying condensed water and condensed water is again
It uses, realizes the recycling to oxygen-eliminating device exhaust gas.
It should be noted that the terms "include", "comprise" or its any other variant are intended to the packet of nonexcludability
Contain, so that the process, method, article or equipment for including a series of elements not only includes those elements, but also including
Other elements that are not explicitly listed, or further include for elements inherent to such a process, method, article, or device.
In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element
Process, method, article or equipment in there is also other identical elements.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of recoverying and utilizing method of oxygen-eliminating device waste steam exhausting, which comprises the following steps:
S1. high-temperature steam is entered in deoxygenation tower head by the first admission line, and steam heating demineralized water makes demineralized water be in full
And state, such demineralized water ullage space pressure are made of steam pressure substantially, oxygen and other gases in demineralized water
The water surface will be escaped, these escaping gas and steam are entered in gland heater by the exhaust emission pipe of oxygen-eliminating device;
S2. enter the gas contact heat-exchanging copper pipe in gland heater, flowing has cooling medium, the steaming in gas in heat exchange copper tube
Vapour condenses into condensed water to the cold, and while condensation, heating front generates the subsequent high-temperature steam into gland heater
Condensed water;
S3. heated condensed water is flowed into gas trap by steam trap and drainpipe, carries condensed water and condensed water
Heat boiler of feeding is reused, and realizes the recycling to oxygen-eliminating device exhaust gas.
2. a kind of recoverying and utilizing method of oxygen-eliminating device waste steam exhausting according to claim 1, it is characterised in that: the axle envelope
The gas that cannot be condensed in heater is discharged in atmosphere by exhaust pipe.
3. a kind of recycle device of the recoverying and utilizing method for oxygen-eliminating device waste steam exhausting claimed in claims 1-2, packet
Include deoxygenation water tank (1) and shell (12), which is characterized in that fixation is communicated with deoxygenation at the top center of the deoxygenation water tank (1)
The side wall fixation of tower head (5), the deoxygenation tower head (5) is communicated with the first admission line (4) and water inlet line (6), the deoxygenation
The bottom fixation of water tank (1) is communicated with outlet conduit (2), and the side fixation of the shell (12) is communicated with tee tube (10), institute
Stating the both ends of tee tube (10) far from shell (12), fixation is communicated with the second admission line (9) and exhaust emission pipe (8) respectively,
It is provided with pipe valve (7) on the exhaust emission pipe (8), the inner top of the shell (12) is fixedly connected with partition (15), institute
It states and is provided with gap between partition (15) and the interior bottom of shell (12), the inside of shell (12) is divided by the partition (15)
The inner wall of one heat exchanging chamber and the second heat exchanging chamber, first heat exchanging chamber and the second heat exchanging chamber is fixedly connected with heat exchange copper tube jointly
(13), it is provided with water pump (21) below the shell (12), water pump (21) one end fixation is communicated with the first connecting tube, institute
It states the one end of the first connecting tube far from water pump (21) and the bottom of shell (12) to be fixedly linked, and one end with heat exchange copper tube (13)
It is connected, the other end fixation of the water pump (21) is communicated with the second connecting tube (20), and second connecting tube (20) is far from water
The bottom of one end and shell (12) for pumping (21) is fixedly linked, and is connected with the other end of heat exchange copper tube (13), the shell
(12) the top fixation of the steam extraction mechanism for being provided on and being connected inside shell (12), the shell (12) is communicated with exhaust pipe
(16), the bottom fixation of the shell (12) is communicated with drainpipe (18), the one end of the drainpipe (18) far from shell (12)
Fixation is communicated with condenser (17), is provided with steam trap (19) on the drainpipe (18).
4. a kind of recycle device of oxygen-eliminating device waste steam exhausting according to claim 3, it is characterised in that: the steam extraction
Mechanism includes air ejector (14), and the throat of the air ejector (14) is fixed to be communicated with third connecting tube, the third connecting tube with
First heat exchanging chamber is connected, and the end of the air ejector (14) is fixed to be communicated with the 4th connecting tube, the 4th connecting tube and the
Two heat exchanging chambers are connected, and are provided in first connecting tube heat exchanger (22), are fixedly connected with and add on the heat exchanger (22)
The side wall of heat pipe (23), the heat exchanger (22) is fixedly connected with heating water tank (24), and the heating tube (23) is located at heating water
The top fixation of the inside of case (24), the heating water tank (24) is communicated with steam pipe (11), the steam pipe (11) and pumping
The end of device (14) is connected.
5. a kind of recycle device of oxygen-eliminating device waste steam exhausting according to claim 3, it is characterised in that: the exhaust gas
It is fixedly linked by flange between discharge tube (8), the second admission line (9) and tee tube (10).
6. a kind of recycle device of oxygen-eliminating device waste steam exhausting according to claim 3, it is characterised in that: the deoxygenation
The bottom of water tank (1) and shell (12) is fixedly connected to supporting leg (3), and the bottom of the supporting leg (3) is fixedly connected with peace
Loading board offers mounting hole on the mounting plate.
7. a kind of recycle device of oxygen-eliminating device waste steam exhausting according to claim 3, it is characterised in that: described first
Admission line (4), exhaust emission pipe (8), the second admission line (9) and tee tube (10) lateral wall be successively socketed with it is heat-insulated
Layer and noise reduction layer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201811131009.0A CN109268813A (en) | 2018-09-27 | 2018-09-27 | A kind of recoverying and utilizing method and its device of oxygen-eliminating device waste steam exhausting |
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CN201811131009.0A CN109268813A (en) | 2018-09-27 | 2018-09-27 | A kind of recoverying and utilizing method and its device of oxygen-eliminating device waste steam exhausting |
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CN109813136A (en) * | 2019-02-27 | 2019-05-28 | 深圳粤通新能源环保技术有限公司 | A kind of heavy duty detergent temperature control vapor recovery energy-saving appliance |
CN113636616A (en) * | 2021-08-24 | 2021-11-12 | 扬州大学 | Vertical high-temperature condensate water deaerating plant |
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CN204098971U (en) * | 2014-09-29 | 2015-01-14 | 大唐韩城第二发电有限责任公司 | A kind of Turbine Cold Junction optimization system |
CN204113354U (en) * | 2014-08-07 | 2015-01-21 | 商丘裕东发电有限责任公司 | A kind of gland seal system and thermodynamic system of steam tur |
CN209876892U (en) * | 2018-09-27 | 2019-12-31 | 衢州东港环保热电有限公司 | Recycling device for waste steam emission of deaerator |
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CN2613593Y (en) * | 2003-04-10 | 2004-04-28 | 江苏省电力公司常州供电公司 | Spray circulation cooling device for discharge cylinder of steam turbine |
CN201650386U (en) * | 2010-03-16 | 2010-11-24 | 宝钢集团新疆八一钢铁有限公司 | Improved turbine generator shaft seal heater |
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