CN209800042U - Intermediate temperature waste heat ORC system - Google Patents
Intermediate temperature waste heat ORC system Download PDFInfo
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- CN209800042U CN209800042U CN201920779416.6U CN201920779416U CN209800042U CN 209800042 U CN209800042 U CN 209800042U CN 201920779416 U CN201920779416 U CN 201920779416U CN 209800042 U CN209800042 U CN 209800042U
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- 239000002918 waste heat Substances 0.000 title claims abstract description 34
- 238000010438 heat treatment Methods 0.000 claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 238000000605 extraction Methods 0.000 claims description 12
- 238000005260 corrosion Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 2
- 238000009776 industrial production Methods 0.000 abstract description 4
- 229920006395 saturated elastomer Polymers 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 abstract description 2
- 239000002440 industrial waste Substances 0.000 abstract 1
- 230000001839 systemic circulation Effects 0.000 abstract 1
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Engine Equipment That Uses Special Cycles (AREA)
Abstract
the utility model provides a medium temperature waste heat ORC system, belongs to energy-concerving and environment-protective field, the utility model discloses mainly in order to solve the unable problem that is utilized by the high efficiency of the low temperature energy in industrial production. The utility model discloses a connection is that organic working medium is heated for saturated steam or superheated steam in exhaust-heat boiler, then saturated steam or superheated steam get into the steam turbine and do work, the steam turbine rotates and drives the generator electricity generation, take out some superheated steam in the steam turbine and directly input into the hybrid heater, the exhaust steam after doing work in the steam turbine gets into the cooling system of a heat exchanger and cools off, the vapour body after the temperature reduction gets into the condenser and condenses, the heating system who inputs a heat exchanger through a working medium pump afterwards heats, liquid after the heating gets into the hybrid heater and continues the heating, get into the exhaust-heat boiler through No. two working medium pumps at last, accomplish a systemic circulation, the utility model discloses mainly carry out reuse to industrial waste heat.
Description
Technical Field
The utility model belongs to the technical field of energy-concerving and environment-protective, concretely relates to medium temperature waste heat ORC system.
background
with the gradual decrease of fossil fuels, governments around the world have paid attention to energy utilization in energy strategies in recent years, and the energy utilization of some developed countries is as high as more than 50%, while the comprehensive energy utilization of our countries is about 30%. In industrial production, a large amount of waste heat from industries such as chemical industry, metallurgy, electric power and the like is directly discharged in the form of low-grade waste heat, so that not only is energy wasted, but also serious influence is brought to the environment, and the strategic policy of national green development and scientific development is violated, therefore, the system for converting the waste heat in industrial production into the reusable energy has a great development prospect, and simultaneously, the system is in line with the actual requirement.
SUMMERY OF THE UTILITY MODEL
the utility model discloses a solve the problem that the low temperature energy can't be utilized by the high efficiency in industrial production, and then provide a medium temperature waste heat ORC system.
the utility model provides an intermediate temperature waste heat ORC system, it includes exhaust-heat boiler, steam turbine, generator, condenser and working medium pump, its characterized in that: the system also comprises a primary heat exchanger, a mixed heater and a second working medium pump;
the waste heat boiler is provided with an input end and an output end, wherein the input end is a heat exchange working medium input end, and the output end is a superheated steam output end;
The steam turbine is provided with an input end and three output ends, wherein the input end is a superheated steam input end, and the three output ends are a steam extraction output end, a steam exhaust output end and a power output end respectively;
The primary heat exchanger is provided with two input ends and two output ends, wherein the two input ends are respectively an exhaust steam input end and a primary liquid heating input end, and the two output ends are respectively an exhaust steam cooling end and a primary liquid heating output end;
The condenser is provided with an input end and an output end, wherein the input end is a gas input end, and the output end is a liquid output end;
The hybrid heater is provided with two input ends and an output end, wherein the two input ends are respectively a liquid secondary heating input end and a steam extraction heating end, and the output end is a heat exchange working medium output end;
the superheated steam output end on the waste heat boiler is connected with the superheated steam input end on the steam turbine through a pipeline, the steam extraction output end on the steam turbine is connected with the steam extraction heating end on the hybrid heater through a pipeline, the exhaust steam output end on the steam turbine is connected with the exhaust steam input end on the primary heat exchanger through a pipeline, the power output end on the steam turbine is connected with the power input end on the generator through a coupler, the exhaust steam cooling end on the primary heat exchanger is connected with the steam input end on the condenser through a pipeline, the liquid output end on the condenser is connected with the liquid primary heating input end on the primary heat exchanger through a pipeline, the liquid heating output end on the primary heat exchanger is connected with the liquid secondary heating input end on the hybrid heater through a pipeline, and the working medium output end on the hybrid heater is connected with the heat exchange.
The utility model discloses with prior art have following beneficial effect:
1. the utility model provides a medium temperature waste heat ORC system can convert low-quality waste heat into high-quality electric energy or convert low-quality energy into high-efficient drive, when improving energy comprehensive utilization, still helps solving the energy and lacks and the emission problem of pollutants such as carbon dioxide, nitrogen oxide, is one of the effective ways of medium temperature waste heat utilization, and medium temperature waste heat ORC system has the advantage of compact structure, easily operation simultaneously.
2. The utility model provides a medium temperature waste heat ORC system installs the working medium after the primary heater heating condensation before steam turbine export and condenser, then reuses the working medium of drawing steam through hybrid heater heating primary heater, has reduced the demand of cold volume in the system, has improved thermal efficiency equally, makes the cyclic efficiency improve 24% at least.
Drawings
Fig. 1 is a schematic diagram of the overall structure of an intermediate-temperature waste heat ORC system provided by the present invention;
in the figure, a waste heat boiler 1, a steam turbine 2, a generator 3, a primary heat exchanger 4, a condenser 5, a mixed heater 6, a first working medium pump 7 and a second working medium pump 8 are arranged.
Detailed Description
the first embodiment is as follows: the embodiment is described with reference to fig. 1, and an intermediate-temperature waste heat ORC system includes a waste heat boiler 1, a steam turbine 2, a generator 3, a condenser 5, and a first working medium pump 7, and is characterized in that: the system also comprises a primary heat exchanger 4, a mixed heater 6 and a second working medium pump 8;
the waste heat boiler 1 is provided with an input end and an output end, wherein the input end is a heat exchange working medium input end, and the output end is a superheated steam output end;
The steam turbine 2 is provided with an input end and three output ends, wherein the input end is a superheated steam input end, and the three output ends are a steam extraction output end, a steam exhaust output end and a power output end respectively;
The primary heat exchanger 4 is provided with two input ends and two output ends, wherein the two input ends are respectively an exhaust steam input end and a primary liquid heating input end, and the two output ends are respectively an exhaust steam cooling end and a primary liquid heating output end;
The condenser 5 is provided with an input end and an output end, wherein the input end is a gas input end, and the output end is a liquid output end;
the mixed heater 6 is provided with two input ends and an output end, wherein the two input ends are respectively a liquid secondary heating input end and a steam extraction heating end, and the output end is a heat exchange working medium output end;
The superheated steam output end on the waste heat boiler 1 is connected with the superheated steam input end on the steam turbine 2 through a pipeline, the steam extraction output end on the steam turbine 2 is connected with the steam extraction heating end on the hybrid heater 6 through a pipeline, the exhaust steam output end on the steam turbine 2 is connected with the exhaust steam input end on the primary heat exchanger 4 through a pipeline, the power output end on the steam turbine 2 is connected with the power input end on the generator 3 through a coupler, the exhaust steam cooling end on the primary heat exchanger 4 is connected with the steam input end on the condenser 5 through a pipeline, the liquid output end on the condenser 5 is connected with the liquid primary heating input end on the primary heat exchanger 4 through a first working medium pump 7, the liquid heating output end on the primary heat exchanger 4 is connected with the liquid secondary heating input end on the hybrid heater 6 through a pipeline, the heat exchange working medium output end on the hybrid heater 6 is The pipelines are connected.
The utility model provides a medium temperature waste heat ORC system has increased primary heat exchanger 4 and hybrid heater 6 in for conventional ORC system, because the working medium still has higher temperature after steam turbine 2 does work, add primary heat exchanger 4, can not only improve the vacuum of condenser 5, the heat load of exhaust-heat boiler 1 has been reduced simultaneously, it heats the working medium to get into hybrid heater 6 to extract steam from steam turbine 2, and install primary heat exchanger 4 before the export of steam turbine 2 and condenser 5 and heat the working medium after the condensation, the input of cold volume has been reduced like this, the system cycle thermal efficiency has been improved, make the energy utilization ratio of system obtain improving, the inside of primary heat exchanger 4 divide into cooling system and heating system two parts, because the exhaust steam temperature of exhaust steam output end output in steam turbine 2 is higher, can not directly get into condenser 5 and cool for liquid, need pass through the cooling system in primary heat exchanger 4 earlier, and performing primary cooling treatment, and then performing steam-liquid conversion in the condenser 5, wherein the temperature of the condensed liquid is low, the temperature requirement is difficult to achieve only through one-time heating, and the condensed liquid needs to enter a heating system in the primary heat exchanger 4 again for temperature rise, wherein the former is to improve the vacuum degree of the condenser 5, and the latter is to reduce the heat load of the waste heat boiler 1. The utility model discloses well used working medium majority is organic working medium, and organic working medium has certain corrosivity in the work, and consequently used connecting tube is corrosion resistance pipeline in embodiment mode one, has effectively prevented at medium temperature circulation in-process, and organic working medium corrodes the emergence that the pipeline leads to the device condition of failure.
the second embodiment is as follows: the present embodiment is described with reference to fig. 1, the primary heat exchanger 4 is a shell-and-tube heat exchanger, and the other connection modes not disclosed are the same as those of the first embodiment.
The third concrete implementation mode: the present embodiment is described with reference to fig. 1, and the hybrid heater 6 is provided with a spraying device, and the other connection modes not disclosed are the same as those of the second embodiment.
the fourth concrete implementation mode: the embodiment is described with reference to fig. 1, the first working medium pump 7 and the second working medium pump 8 are centrifugal working medium pumps with an anti-corrosion function, and the other connection modes which are not disclosed are the same as those of the third embodiment.
so set up, because adopt organic working medium as the medium of energy conversion in this system, organic working medium has certain corrosivity relative to other working mediums, chooses centrifugal working medium pump with anticorrosive function for the protection system of choice, the life of extension system simultaneously
the fifth concrete implementation mode: the present embodiment is described with reference to fig. 1, and the condenser 5 is a surface condenser, and the other connection modes not disclosed are the same as those of the fourth embodiment.
So set up, surface formula condenser is comparatively common in the industry, and the condensation is effectual, and condensation efficiency is higher.
Principle of operation
Organic working medium is heated into saturated steam or superheated steam in the waste heat boiler 1, then the saturated steam or the superheated steam enters the steam turbine 2 to start acting, the steam turbine 2 rotates to drive the generator 3 to generate electricity, a part of superheated steam extracted from the steam turbine 2 is directly input into the hybrid heater 6, exhaust steam after working in the steam turbine 2 enters the cooling system of the primary heat exchanger 4 to cool the working medium, the steam with reduced temperature enters the condenser 5 to be condensed, then the steam is input into the heating system of the primary heater 4 through the primary working medium pump 7 to be heated, the heated liquid enters the hybrid heater 6 to be continuously heated, and finally the heated liquid enters the waste heat boiler 1 through the secondary working medium pump 8 to complete a system cycle.
Claims (5)
1. The utility model provides an intermediate temperature waste heat ORC system, it includes exhaust-heat boiler (1), steam turbine (2), generator (3), condenser (5) and working medium pump (7), its characterized in that: the device also comprises a primary heat exchanger (4), a mixed heater (6) and a second working medium pump (8);
the waste heat boiler (1) is provided with an input end and an output end, wherein the input end is a heat exchange working medium input end, and the output end is a superheated steam output end;
The steam turbine (2) is provided with an input end and three output ends, wherein the input end is a superheated steam input end, and the three output ends are a steam extraction output end, a steam exhaust output end and a power output end respectively;
The primary heat exchanger (4) is provided with two input ends and two output ends, wherein the two input ends are respectively an exhaust steam input end and a primary liquid heating input end, and the two output ends are respectively an exhaust steam cooling end and a primary liquid heating output end;
The condenser (5) is provided with an input end and an output end, wherein the input end is a gas input end, and the output end is a liquid output end;
The hybrid heater (6) is provided with two input ends and an output end, wherein the two input ends are respectively a liquid secondary heating input end and a steam extraction heating end, and the output end is a heat exchange working medium output end;
an overheated steam output end on the waste heat boiler (1) is connected with an overheated steam input end on a steam turbine (2) through a pipeline, a steam extraction output end on the steam turbine (2) is connected with a steam extraction heating end on a mixed heater (6) through a pipeline, an exhausted steam output end on the steam turbine (2) is connected with an exhausted steam input end on a primary heat exchanger (4) through a pipeline, a power output end on the steam turbine (2) is connected with a power input end on a generator (3) through a coupler, an exhausted steam cooling end on the primary heat exchanger (4) is connected with a steam input end on a condenser (5) through a pipeline, a liquid output end on the condenser (5) is connected with a liquid primary heating input end on the primary heat exchanger (4) through a first working medium pump (7) through a pipeline, a liquid heating output end on the primary heat exchanger (4) is connected with a liquid secondary heating input, the output end of the heat exchange working medium on the hybrid heater (6) is connected with the input end of the heat exchange working medium on the waste heat boiler (1) through a pipeline through a second working medium pump (8).
2. A medium-temperature waste heat ORC system according to claim 1, wherein: the primary heat exchanger (4) is a shell-and-tube heat exchanger.
3. A medium-temperature waste heat ORC system according to claim 1, wherein: the hybrid heater (6) is provided with a spraying device.
4. A medium-temperature waste heat ORC system according to claim 1, wherein: the first working medium pump (7) and the second working medium pump (8) are centrifugal working medium pumps with an anti-corrosion function.
5. a medium-temperature waste heat ORC system according to claim 1, wherein: the condenser (5) is a surface condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920779416.6U CN209800042U (en) | 2019-05-27 | 2019-05-27 | Intermediate temperature waste heat ORC system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920779416.6U CN209800042U (en) | 2019-05-27 | 2019-05-27 | Intermediate temperature waste heat ORC system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209800042U true CN209800042U (en) | 2019-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920779416.6U Expired - Fee Related CN209800042U (en) | 2019-05-27 | 2019-05-27 | Intermediate temperature waste heat ORC system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209800042U (en) |
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2019
- 2019-05-27 CN CN201920779416.6U patent/CN209800042U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Fu Yuan Gang Inventor after: Xue Yingxi Inventor after: Zhao Yuwei Inventor after: Han Guangming Inventor after: Zhang Xiaoyan Inventor before: Zhang Xiaoyan Inventor before: Fu Yuan Gang Inventor before: Xue Yingxi Inventor before: Zhao Yuwei Inventor before: Han Guangming |
|
| CB03 | Change of inventor or designer information | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191217 |