CN114109531A - Cooler and cooling method - Google Patents
Cooler and cooling method Download PDFInfo
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- CN114109531A CN114109531A CN202010880096.0A CN202010880096A CN114109531A CN 114109531 A CN114109531 A CN 114109531A CN 202010880096 A CN202010880096 A CN 202010880096A CN 114109531 A CN114109531 A CN 114109531A
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- 238000001816 cooling Methods 0.000 title claims abstract description 335
- 239000000498 cooling water Substances 0.000 claims abstract description 66
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 210000004907 gland Anatomy 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 34
- 238000009833 condensation Methods 0.000 description 11
- 230000005494 condensation Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 238000005192 partition Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 239000000203 mixture Substances 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/08—Cooling; Heating; Heat-insulation
- F01D25/12—Cooling
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- Engineering & Computer Science (AREA)
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- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a cooler and a cooling method, wherein the cooler comprises: the first cooling chamber is provided with a first steam inlet and an exhaust port, the second cooling chamber is provided with a second steam inlet, the second cooling chamber is communicated with the first cooling chamber through a steam communicating pipe, and the drain port is communicated with the first cooling chamber and the second cooling chamber. The cooling method comprises the following steps: the steam seal leakage steam enters the first cooling chamber through the first steam inlet and is exhausted through the exhaust port on the first cooling chamber; the steam leakage of the door rod enters the second cooling chamber through the second steam inlet, enters the first cooling chamber through the steam communicating pipe and is discharged through the exhaust port on the first cooling chamber; the cooler and the cooling method have the advantages that the cooling water firstly enters the first chamber, and enters the second cooling chamber after heat exchange, the cooling efficiency is higher, and the flow of the required cooling water is lower.
Description
Technical Field
The invention relates to the field of coolers and cooling methods, in particular to a cooler with higher cooling efficiency and a cooling method.
Background
In the working process of the steam turbine, because of different sealing modes of the valve rod and the shaft seal and different working pressures, the steam leakage of the valve rod which has larger flow and higher temperature and does not contain or contains a very small amount of non-condensable gas (air) and the steam seal which has lower temperature and contains certain non-condensable gas (air) can be generated.
The cooler for the steam turbine among the prior art generally comprises 1 cooling chamber, 2 air exhaust fans, and the vapor seal leaks vapour and door pole leak the vapour and gets into in the cooling chamber after mixing in the pipeline, is cooled and condenses by the cooling water in the cooling tube, and the condensate water after condensing gets into the condenser through the drain trap of cooling chamber bottom, and the vapor seal that does not condense leaks vapour and door pole leak vapour and noncondensable gas (air) are discharged by air exhaust fans.
The heat transfer form in the cooler is membranous condensation, when the membranous condensation, the liquid film layer is the main thermal resistance of heat transfer, contain the non-condensable gas in the steam, even the content is extremely little will produce the very harmful influence to the heat transfer of condensation, because the non-condensable gas will form the non-condensable gas layer on the surface of liquid film layer, has increased the resistance of working medium heat transfer process, make the saturation temperature drop at the same time, has reduced the power δ t of the heat transfer of condensation. For example, 1% by mass of air in water vapor can reduce the surface heat transfer coefficient by 60%. Therefore, the cooler in the prior art has low cooling efficiency due to the influence of the non-condensable gas contained in the steam leakage of the steam seal.
On the other hand, because the flow and the temperature are higher under some operating modes for the steam leakage of the door rod, the cooler in the prior art mixes the steam and then cools and condenses by the cooling water, so that the temperature rise of the cooling water is obviously increased, the temperature difference of condensation cooling and heat exchange is reduced, the temperature of the outlet of the steam-gas mixture is increased, the condensation rate of the steam is reduced, the mass and the volume flow of the fan are increased, and the working medium is not beneficial to recovery and energy conservation. For some units, such as a back pressure unit, the cooling water cannot adopt condensed water, circulating cooling water needs to be additionally provided, and the problems of cooling water flow and temperature rise are more prominent.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a cooler with higher cooling efficiency.
In order to solve the above technical problem, the present invention provides a cooler for condensing and cooling steam leakage of a steam turbine, the steam leakage of the steam turbine including gland seal leakage/steam and valve stem leakage, the cooler comprising: the first cooling chamber is provided with a first steam inlet and a first exhaust port; the second cooling chamber is provided with a second steam inlet and is communicated with the first cooling chamber through a steam communicating pipe; a drain in communication with the first cooling chamber and the second cooling chamber.
Preferably, a cooling water inlet is formed in the first cooling chamber, and a first cooling tube bundle communicated with the cooling water inlet is arranged in the first cooling chamber; and a cooling water outlet is formed in the second cooling chamber, a second cooling tube bundle communicated with the cooling water outlet is arranged in the second cooling chamber, and the second cooling tube bundle is communicated with the first cooling tube bundle through a cooling water communicating tube.
Further, the first cooling tube bundle and the second cooling tube bundle are both multi-pass tube bundles.
Preferably, the cooler further comprises a first air extractor and a second air extractor which are communicated with the air outlet.
Preferably, a baffle plate for increasing gas turbulence is arranged in each of the first cooling chamber and the second cooling chamber.
Preferably, the first cooling chamber and the second cooling chamber are distributed in parallel; one end of the first cooling cavity is provided with the first steam inlet, and the other end of the first cooling cavity is provided with the exhaust port; and one end of the first cooling chamber is communicated with one end of the second cooling chamber through the steam communicating pipe, and the other end of the second cooling chamber is provided with the second steam inlet.
As described above, the cooler of the present invention has the following advantageous effects:
by adopting the cooler, steam seal leakage/gas enters the first cooling chamber through the first steam inlet and is discharged through the exhaust port on the first cooling chamber, so that the condensation and cooling of the steam seal leakage/gas are realized; the door rod steam leakage enters the second cooling chamber through the second steam inlet, a small amount of non-condensable gas (if any) enters the first cooling chamber through the steam communicating pipe, and is discharged through the exhaust port in the first cooling chamber, so that the condensation cooling of the door rod steam leakage is realized. In the using process of the cooler, the non-condensing gas contained in the steam seal leakage steam can not influence the condensation process of the door rod leakage steam in the second cooling chamber, so that the cooling efficiency of the second cooling chamber is higher. Therefore, the cooler of the present invention has higher cooling efficiency.
Another object of the present invention is to provide a cooling method with higher cooling efficiency.
In order to achieve the above object, the present invention provides a cooling method using the above cooler, for cooling steam turbine leakage steam, wherein the steam turbine leakage steam comprises steam seal leakage steam and door rod leakage steam, comprising the following steps:
the steam seal leakage steam enters the first cooling chamber through the first steam inlet and is exhausted through the exhaust port on the first cooling chamber; the steam leakage of the door rod enters the second cooling chamber through the second steam inlet, enters the first cooling chamber through the steam communicating pipe and is discharged through the exhaust port on the first cooling chamber; condensed water formed in the first cooling chamber is discharged through a drain port; the condensed water formed in the second cooling chamber is discharged through the drain port.
Preferably, a cooling water inlet is formed in the first cooling chamber, and a first cooling tube bundle communicated with the cooling water inlet is arranged in the first cooling chamber; a cooling water outlet is formed in the second cooling chamber, a second cooling tube bundle communicated with the cooling water outlet is arranged in the second cooling chamber, and the second cooling tube bundle is communicated with the first cooling tube bundle through a cooling water communicating tube; the cooling method comprises the following steps: the cooling water enters the first cooling tube bundle in the first cooling chamber from the cooling water inlet, then enters the second cooling tube bundle in the second cooling chamber through the cooling water communicating tube, and then flows out through the cooling water outlet.
Preferably, the first cooling chamber and the second cooling chamber are distributed in parallel; one end of the first cooling cavity is provided with the first steam inlet, and the other end of the first cooling cavity is provided with the exhaust port; one end of the first cooling chamber is communicated with one end of a second cooling chamber through the steam communicating pipe, and the other end of the second cooling chamber is provided with the second steam inlet; the cooling method comprises the following steps: the leaking steam of the door rod enters one end of the second cooling chamber through the second steam inlet, flows into the steam communicating pipe from the other end of the second cooling chamber, enters one end of the first cooling chamber through the steam communicating pipe, and is finally discharged through the exhaust port on the other end of the first cooling chamber.
As described above, a cooling method of the present invention has the following advantageous effects:
by adopting the cooling method, the steam seal leakage steam enters the first cooling chamber through the first steam inlet and is discharged through the exhaust port on the first cooling chamber, so that the cooling of the steam seal leakage steam is realized; and the steam leakage of the door rod enters the second cooling chamber through the second steam inlet, enters the first cooling chamber through the steam communicating pipe, and is discharged through the exhaust port on the first cooling chamber, so that the steam leakage of the door rod is cooled. By using the cooling method, the steam seal leakage steam is cooled only through the first cooling chamber, and the contained non-condensable gas can not influence the cooling process of the door rod leakage steam in the second cooling chamber, so that the cooling efficiency of the door rod leakage steam in the second cooling chamber is improved; the leakage gas of the door rod sequentially passes through the cooling of the second cooling chamber and the first cooling chamber, and the cooling path is prolonged. Therefore, the cooling method of the present invention has higher cooling efficiency.
Drawings
FIG. 1 is a schematic illustration of the cooling path for steam leakage from the steam seal and steam leakage from the door stem in a cooler in accordance with an embodiment of the present invention;
fig. 2 is a schematic diagram of a cooler according to an embodiment of the present invention.
Description of the reference numerals
1 first Cooling Chamber
101 first steam inlet
102 exhaust port
103 cooling water inlet
110 first partition plate
2 second cooling chamber
201 second inlet
202 cooling water outlet
210 second partition
3 steam communicating pipe
4 drain port
5 Cooling water communicating pipe
6 first air exhaust fan
7 second air extractor
8Y-shaped connecting pipe
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to the attached drawings. It should be understood that the structures, ratios, sizes, etc. shown in the drawings attached to the present specification are only used for matching the disclosure of the present specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that they have no technical significance, and any structural modification (for example, a partition plate is used to divide the same cylinder into two cooling chambers), ratio changes or size adjustment should still fall within the scope of the present disclosure without affecting the efficacy and the achievable purpose of the present invention.
As shown in fig. 1-2, the present invention provides a cooler for cooling steam leakage of a steam turbine, the steam leakage of the steam turbine including gland seal steam leakage and gate stem steam leakage, the gland seal steam leakage having a relatively low pressure and temperature and containing non-condensable gases, the gate stem steam leakage having a relatively high pressure and temperature and containing no non-condensable gases, the cooler comprising: the cooling device comprises a first cooling chamber 1, wherein a first steam inlet 101 and a first exhaust port 102 are formed in the first cooling chamber 1; a second cooling chamber 2, wherein a second steam inlet 201 is formed in the second cooling chamber 2, and the second cooling chamber 2 is communicated with the first cooling chamber 1 through a steam communicating pipe 3; a drain port 4, the drain port 4 communicating with the first cooling chamber 1 and the second cooling chamber 2.
By adopting the cooler, the steam seal leakage steam enters the first cooling chamber 1 through the first steam inlet 101 and is discharged through the exhaust port 102 on the first cooling chamber 1, so that the cooling of the steam seal leakage steam is realized; the door rod steam leakage enters the second cooling chamber 2 through the second steam inlet 201, enters the first cooling chamber 1 through the steam communicating pipe 3, and is discharged through the exhaust port 102 on the first cooling chamber 1, so that the door rod steam leakage is cooled. In the using process of the cooler, the non-condensable gas contained in the steam seal leakage steam can not influence the cooling process of the air leakage of the door rod in the second cooling chamber 2, so that the cooling efficiency of the second cooling chamber 2 is higher; meanwhile, the first cooling chamber 1 and the second cooling chamber 2 can both cool the air leakage of the door rod, and the cooling path of the air leakage of the door rod is prolonged. Therefore, the cooler of the present invention has higher cooling efficiency.
In this embodiment, the first cooling chamber 1 is provided with a cooling water inlet 103, and the first cooling chamber 1 is provided with a first cooling tube bundle communicated with the cooling water inlet 103; the second cooling chamber 2 is provided with a cooling water outlet 202, a second cooling tube bundle communicated with the cooling water outlet 202 is arranged in the second cooling chamber 2, and the second cooling tube bundle is communicated with the first cooling tube bundle through a cooling water communicating tube 5. Because the door pole of high temperature leaking steam can become microthermal door pole leaking steam and get into first cooling chamber 1 after cooling in second cooling chamber 2, cooling water in this embodiment flows into second cooling tube bank from first cooling tube bank, can cool off microthermal vapor seal leaking steam and door pole leaking steam in first cooling chamber 1 earlier, be favorable to reducing the temperature of the mixed vapor gas of following first cooling chamber 1 exhaust, fully absorb the heat of low temperature steam, cool off the door pole leaking steam of high temperature in second cooling chamber 2 again, can further absorb the heat of high temperature steam. The controlling factor for the condensation efficiency of the first cooling chamber 1 is the mixed gas outlet temperature, which determines the condensation rate of the steam and the required volume flow of the extraction fan. The cooling water with lower temperature flows through the first cooling chamber 1 first, which is beneficial to reducing the outlet temperature of the mixed gas, so that the cooling efficiency of the first cooling chamber 1 is higher. The cooling water in the embodiment can absorb more heat, and the temperature rise is higher, so that the cooling efficiency of the whole cooler is improved.
Further, for reducing cooling water flow, improve the cooling water velocity of flow in first cooling tube bank and the second cooling tube bank, the reinforcing turbulence degree improves total heat transfer coefficient, simultaneously for reducing the length of first cooling cavity 1 and second cooling cavity 2, first cooling tube bank and second cooling tube bank in this embodiment are the multi-flow tube bank, and is concrete, and first cooling tube bank and second cooling tube bank are 4-flow tube bank.
In order to smoothly discharge cooled steam seal leakage and door rod leakage from the exhaust port 102 of the first cooling chamber 1, the cooler in this embodiment further includes a first air extractor 6 and a second air extractor 7 which are communicated with the exhaust port 102, and specifically, the cooler further includes a Y-shaped connecting pipe 8, one end of the Y-shaped connecting pipe 8 is communicated with the exhaust port 102, and the other two ends of the Y-shaped connecting pipe are respectively communicated with the first air extractor 6 and the second air extractor 7.
In this embodiment, the first cooling chamber 1 and the second cooling chamber 2 are both provided with a partition board for increasing the turbulence of the gas, the partition board located in the first cooling chamber 1 is the first partition board 110, and the partition board located in the second cooling chamber 2 is the second partition board 210, so that the vapor introduced into the first cooling chamber 1 and the second cooling chamber 2 can be uniformly distributed, and fully contacts with the first cooling tube bundle and the second cooling tube bundle, thereby improving the cooling efficiency.
The first cooling chamber 1 and the second cooling chamber 2 in the present embodiment are distributed in parallel; one end of the first cooling chamber 1 is provided with a first steam inlet 101, and the other end is provided with an exhaust port 102; and the end of the first cooling chamber 1 provided with the first steam inlet 101 is communicated with one end of the second cooling chamber 2 through the vapor communicating tube 3, and the other end of the second cooling chamber 2 is provided with a second steam inlet 201. Such arrangement mode makes the cooling route of gland steam leakage and door lever steam leakage all reach the longest, and gland steam leakage and door lever steam leakage are refrigerated more fully to the temperature of the door lever gas leakage of 2 abundant coolings in second cooling chamber is lower, can not heat the gland steam leakage after letting in first cooling chamber 1, and the cooling water flows through first cooling chamber 1 earlier, is favorable to reducing the exit temperature of vapour gas mixture, thereby makes the cooling efficiency of the cooler in this embodiment higher. The cooling paths of the steam seal leakage and the door stem leakage are shown as the arrow directions in fig. 1.
As shown in fig. 1-2, the present invention further provides a cooling method using the above-mentioned cooler, for cooling steam turbine leakage, where the steam turbine leakage includes gland seal leakage and gate stem leakage, and the method includes the following steps:
the steam seal leakage steam enters the first cooling chamber 1 through the first steam inlet 101 and is exhausted through the exhaust port 102 on the first cooling chamber 1; the steam leakage of the door rod enters the second cooling chamber 2 through the second steam inlet 201, enters the first cooling chamber 1 through the steam communicating pipe 3, and is discharged through the exhaust port 102 on the first cooling chamber 1; condensed water formed in the first cooling chamber 1 is discharged through the drain port 4; the condensed water formed in the second cooling chamber 2 is drained through the drain 4.
By adopting the cooling method, the steam seal leakage steam enters the first cooling chamber 1 through the first steam inlet 101 and is discharged through the exhaust port 102 on the first cooling chamber 1, so that the cooling of the steam seal leakage steam is realized; and the door rod steam leakage enters the second cooling chamber 2 through the second steam inlet 201, enters the first cooling chamber 1 through the steam communicating pipe 3, and is discharged through the exhaust port 102 on the first cooling chamber 1, so that the door rod steam leakage is cooled. By using the cooling method, the steam seal leakage steam is cooled only through the first cooling chamber 1, and the contained non-condensable gas can not influence the cooling process of the door rod leakage steam in the second cooling chamber 2, so that the cooling efficiency of the door rod leakage steam in the second cooling chamber 2 is improved; the door rod blow-by gas is cooled by the second cooling chamber 2 and the first cooling chamber 1 in sequence, and the cooling path is prolonged. Therefore, the cooling method of the present invention has higher cooling efficiency.
In this embodiment, the first cooling chamber 1 is provided with a cooling water inlet 103, and the first cooling chamber 1 is provided with a first cooling tube bundle communicated with the cooling water inlet 103; the second cooling chamber 2 is provided with a cooling water outlet 202, a second cooling tube bundle communicated with the cooling water outlet 202 is arranged in the second cooling chamber 2, and the second cooling tube bundle is communicated with the first cooling tube bundle through a cooling water communicating tube 5. Therefore, the cooling method in this embodiment further includes the steps of: the cooling water enters the first cooling tube bundle in the first cooling chamber 1 through the cooling water inlet 103, enters the second cooling tube bundle in the second cooling chamber 2 through the cooling water communicating tube 5, and flows out through the cooling water outlet 202. The cooling water in the embodiment can absorb more heat, the influence of high-temperature door rod steam leakage is avoided, the cooling water flows through the first cooling chamber 1 first, the outlet temperature of the steam seal steam leakage and non-condensing gas steam-gas mixture is lower, the steam seal steam leakage cooling efficiency is higher, the temperature rise is higher, and the cooling efficiency of the cooling method in the embodiment is higher.
In the present embodiment, the first cooling chamber 1 and the second cooling chamber 2 are distributed in parallel; one end of the first cooling chamber 1 is provided with a first steam inlet 101, and the other end is provided with an exhaust port 102; and one end of the first cooling chamber 1 is communicated with one end of the second cooling chamber 2 through the vapor communicating tube 3, and the other end of the second cooling chamber 2 is provided with a second vapor inlet 201. Therefore, the cooling method of the present embodiment includes the steps of: the door stem leakage steam enters one end of the second cooling chamber 2 through the second steam inlet 201, flows into the steam communicating pipe 3 from the other end of the second cooling chamber 2, enters one end of the first cooling chamber 1 through the steam communicating pipe 3, and is finally discharged through the exhaust port 102 on the other end of the first cooling chamber 1. The cooling route of door pole hourglass vapour in this embodiment reaches the longest, and door pole hourglass vapour is refrigerated more abundant to the temperature of the door pole gas leakage of the abundant cooling through second cooling chamber 2 is lower, can not heat the vapor seal hourglass vapour after letting in first cooling chamber 1, and cooling water flows through first cooling chamber 1 earlier and makes vapour gas mixture outlet temperature lower, thereby makes the cooling efficiency of the cooling method in this embodiment higher.
In the invention, when the steam turbine reaches full load, the valve rod realizes self sealing, no valve rod steam leakage is generated at the moment, and part of steam leakage of the steam seal enters the second cooling chamber through the steam communicating pipe for cooling and is discharged from the exhaust port on the first cooling chamber.
In the prior art, the cooling water flow rate of the cooler is of great importance to the cooling effect. When the cooling water flow is sufficient, the larger heat transfer end difference can partially make up the deficiency of the reduction of the cooling efficiency caused by the non-condensed gas, and the cooling effect of the cooler is good; when actual cooling water flow is too small, the heat exchange end difference of the cooler is small, and in addition, the existence of non-condensing gas, the cooling effect of the cooler becomes poor: on one hand, a large amount of steam seal leakage steam and door stem leakage steam are not cooled into water and are discharged by a steam exhaust fan, so that the loss of working media and heat is caused; on the other hand, the gland seal leakage steam and the door rod leakage steam which are not condensed into water are gathered in the cooler, so that the pressure of the gland seal leakage steam chambers in the cooler and at the end part of the steam turbine is overhigh, and the end part of the steam turbine is subjected to steam bleeding.
The cooler has a special structure, and two cooling chambers are adopted for cooling, so that the influence of non-condensable gas contained in steam seal leakage on the cooling process of the leakage of the door rod is reduced; the mixed gas outlet temperature of the steam seal leakage cooling cavity is reduced, the cooling efficiency of the cooler is improved, and compared with the prior art, the required cooling water quantity is reduced.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes (e.g., a partition separating the same cylinder into two cooling chambers) be made by those skilled in the art without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (9)
1. A cooler, comprising:
the first cooling chamber is provided with a first steam inlet and a first exhaust port;
the second cooling chamber is provided with a second steam inlet and is communicated with the first cooling chamber through a steam communicating pipe;
a drain in communication with the first cooling chamber and the second cooling chamber.
2. The cooler of claim 1, wherein: a cooling water inlet is formed in the first cooling cavity, and a first cooling tube bundle communicated with the cooling water inlet is arranged in the first cooling cavity; and a cooling water outlet is formed in the second cooling chamber, a second cooling tube bundle communicated with the cooling water outlet is arranged in the second cooling chamber, and the second cooling tube bundle is communicated with the first cooling tube bundle through a cooling water communicating tube.
3. The cooler of claim 2, wherein: the first cooling tube bundle and the second cooling tube bundle are multi-flow tube bundles.
4. The chiller according to claim 1 further comprising a first suction fan and a second suction fan in communication with the exhaust.
5. The cooler of claim 1, wherein: and the first cooling cavity and the second cooling cavity are internally provided with clapboards for increasing gas turbulence.
6. The cooler of claim 1, wherein: the first cooling chamber and the second cooling chamber are distributed in parallel; one end of the first cooling cavity is provided with the first steam inlet, and the other end of the first cooling cavity is provided with the exhaust port; and one end of the first cooling chamber is communicated with one end of the second cooling chamber through the steam communicating pipe, and the other end of the second cooling chamber is provided with the second steam inlet.
7. A cooling method using the cooler of claim 1 for cooling turbine leakage, said turbine leakage including gland seal leakage and door stem leakage, comprising the steps of:
the steam seal leakage steam enters the first cooling chamber through the first steam inlet and is exhausted through the exhaust port on the first cooling chamber;
the steam leakage of the door rod enters the second cooling chamber through the second steam inlet, enters the first cooling chamber through the steam communicating pipe and is discharged through the exhaust port on the first cooling chamber;
condensed water formed in the first cooling chamber is discharged through a drain port; the condensed water formed in the second cooling chamber is discharged through the drain port.
8. The cooling method according to claim 7, wherein the first cooling chamber is provided with a cooling water inlet, and a first cooling tube bundle communicated with the cooling water inlet is arranged in the first cooling chamber; a cooling water outlet is formed in the second cooling chamber, a second cooling tube bundle communicated with the cooling water outlet is arranged in the second cooling chamber, and the second cooling tube bundle is communicated with the first cooling tube bundle through a cooling water communicating tube; the cooling method comprises the following steps:
the cooling water enters the first cooling tube bundle in the first cooling chamber from the cooling water inlet, then enters the second cooling tube bundle in the second cooling chamber through the cooling water communicating tube, and then flows out through the cooling water outlet.
9. The cooling method according to claim 7, wherein the first cooling chamber and the second cooling chamber are distributed in parallel; one end of the first cooling cavity is provided with the first steam inlet, and the other end of the first cooling cavity is provided with the exhaust port; one end of the first cooling chamber is communicated with one end of a second cooling chamber through the steam communicating pipe, and the other end of the second cooling chamber is provided with the second steam inlet; the cooling method comprises the following steps:
the leaking steam of the door rod enters one end of the second cooling chamber through the second steam inlet, flows into the steam communicating pipe from the other end of the second cooling chamber, enters one end of the first cooling chamber through the steam communicating pipe, and is finally discharged through the exhaust port on the other end of the first cooling chamber.
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| CN202010880096.0A CN114109531B (en) | 2020-08-27 | 2020-08-27 | Cooler and cooling method |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55152381A (en) * | 1979-05-15 | 1980-11-27 | Fuji Electric Co Ltd | Multistage pressure chamber type condenser |
| JPS59167690A (en) * | 1983-03-11 | 1984-09-21 | Fuji Electric Co Ltd | Gas cooling device for jet condenser |
| CN201407074Y (en) * | 2009-04-01 | 2010-02-17 | 杭州汽轮辅机有限公司 | Jet-type gland-sealing cooler |
| US20100319879A1 (en) * | 2007-10-16 | 2010-12-23 | Kabushiki Kaisha Toshiba | Multi-pressure condenser and condensate reheating method |
| CN101995169A (en) * | 2009-08-10 | 2011-03-30 | 江苏华机环保设备有限责任公司 | Corrugated plate jet cooler for chlorine dioxide preparation system |
| JP2013164245A (en) * | 2012-02-13 | 2013-08-22 | Toshiba Corp | Steam condenser |
| CN105296314A (en) * | 2014-06-24 | 2016-02-03 | 贵州黎阳天翔科技有限公司 | Condenser device for white wine distillation |
| CN105698191A (en) * | 2016-03-21 | 2016-06-22 | 安徽未名生物环保有限公司 | Water circulating system for rubbish burning treatment |
| CN208431038U (en) * | 2018-07-17 | 2019-01-25 | 山东新升实业发展有限责任公司 | A kind of back pressure machine packing suction recyclable device |
| CN210317407U (en) * | 2019-06-28 | 2020-04-14 | 连云港利德电力设备有限公司 | High-efficiency shaft seal heater |
| CN210768936U (en) * | 2019-08-05 | 2020-06-16 | 华电莱州发电有限公司 | Shaft seal steam supply system with cooling device |
-
2020
- 2020-08-27 CN CN202010880096.0A patent/CN114109531B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55152381A (en) * | 1979-05-15 | 1980-11-27 | Fuji Electric Co Ltd | Multistage pressure chamber type condenser |
| JPS59167690A (en) * | 1983-03-11 | 1984-09-21 | Fuji Electric Co Ltd | Gas cooling device for jet condenser |
| US20100319879A1 (en) * | 2007-10-16 | 2010-12-23 | Kabushiki Kaisha Toshiba | Multi-pressure condenser and condensate reheating method |
| CN201407074Y (en) * | 2009-04-01 | 2010-02-17 | 杭州汽轮辅机有限公司 | Jet-type gland-sealing cooler |
| CN101995169A (en) * | 2009-08-10 | 2011-03-30 | 江苏华机环保设备有限责任公司 | Corrugated plate jet cooler for chlorine dioxide preparation system |
| JP2013164245A (en) * | 2012-02-13 | 2013-08-22 | Toshiba Corp | Steam condenser |
| CN105296314A (en) * | 2014-06-24 | 2016-02-03 | 贵州黎阳天翔科技有限公司 | Condenser device for white wine distillation |
| CN105698191A (en) * | 2016-03-21 | 2016-06-22 | 安徽未名生物环保有限公司 | Water circulating system for rubbish burning treatment |
| CN208431038U (en) * | 2018-07-17 | 2019-01-25 | 山东新升实业发展有限责任公司 | A kind of back pressure machine packing suction recyclable device |
| CN210317407U (en) * | 2019-06-28 | 2020-04-14 | 连云港利德电力设备有限公司 | High-efficiency shaft seal heater |
| CN210768936U (en) * | 2019-08-05 | 2020-06-16 | 华电莱州发电有限公司 | Shaft seal steam supply system with cooling device |
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