CN211524915U - ORC power generation system employing ORC condensate liquid to cool power generation inverter - Google Patents
ORC power generation system employing ORC condensate liquid to cool power generation inverter Download PDFInfo
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- CN211524915U CN211524915U CN201922087361.5U CN201922087361U CN211524915U CN 211524915 U CN211524915 U CN 211524915U CN 201922087361 U CN201922087361 U CN 201922087361U CN 211524915 U CN211524915 U CN 211524915U
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Abstract
The utility model discloses an adopt ORC power generation system of ORC condensate liquid cooling electricity generation dc-to-ac converter includes evaporimeter, generating set, condenser and working medium pump, and generating set includes expander and dc-to-ac converter cooler, and evaporimeter, expander, condenser, working medium pump and dc-to-ac converter cooler connect gradually and form organic working medium circulation circuit. The organic Rankine cycle power generation system disclosed by the invention utilizes the organic working medium of the organic Rankine cycle system to cool the inverter, and the inverter cooling cycle system does not need to be additionally arranged, so that the cost is saved. Furthermore, the organic working medium absorbs the heat of the inverter, so that the heat utilization rate of the organic Rankine cycle power generation system is improved to a certain extent, and the waste of heat is reduced.
Description
Technical Field
The utility model relates to a waste heat power generation field, in particular to adopt ORC condensate liquid cooling power generation inverter's ORC power generation system.
Background
Organic Rankine Cycle (ORC) is a Rankine Cycle using low boiling point Organic substances as a working medium. The organic Rankine cycle power generation system mainly comprises an evaporator, a generator set, a condenser and a working medium pump, wherein the generator set comprises an expansion machine and a generator connected with the expansion machine. The power generation principle of the organic Rankine cycle power generation system is that a working medium pump presses a liquid organic working medium into an evaporator, the organic working medium absorbs heat from a waste heat source in the evaporator to generate organic working medium steam with certain pressure and temperature, and the organic working medium steam enters an expansion machine of a power generator set to drive the power generator to generate power. Organic working medium steam discharged from an expansion machine of the generator set is condensed into liquid in a condenser, and finally returns to the evaporator again by means of a working medium pump, so that the organic working medium steam is continuously circulated, and the waste heat is utilized for generating power.
The direct current generated by the generator is converted into alternating current by an inverter. The inverter generates heat during operation, and cooling of the inverter is required to avoid damage due to overheating of the inverter. Referring to fig. 1, in the prior art, an inverter 100 is usually cooled by a circulating water cooling system, which includes a cooler 200, a circulating pump 300 and a refrigerator 400 connected by a circulating pipeline, wherein the circulating pump 300 drives cooling water to circulate in the pipeline. The refrigerator 400 cools down the cooling water to continuously supply the low-temperature cooling water to the cooler 200. Heat exchange is performed between cooler 200 and inverter 100, and the cooling water removes heat of inverter 100.
SUMMERY OF THE UTILITY MODEL
According to the utility model discloses an aspect provides an adopt ORC condensate liquid cooling power generation inverter's ORC power generation system, the utility model discloses a power generation system utilizes the organic working medium cooling generating set's of organic rankine cycle system self inverter, neither needs additionally to set up water-cooling circulation device, also can the heat that the recycle inverter produced.
The ORC power generation system adopting the ORC condensed liquid cooling power generation inverter comprises an evaporator, a generator set, a condenser and a working medium pump, wherein the generator set comprises an expansion machine and an inverter cooler, and the evaporator, the expansion machine, the condenser, the working medium pump and the inverter cooler are sequentially connected to form an organic working medium circulation loop.
The organic Rankine cycle power generation system has the advantages that the low-temperature liquid organic working medium is pressed into the inverter cooler by the working medium pump, and the heat of the inverter is transmitted to the liquid organic working medium through the inverter cooler, so that the inverter is cooled. The inverter is cooled by the organic working medium of the organic Rankine cycle system, an inverter cooling cycle system does not need to be additionally arranged, and cost is saved. Furthermore, the organic working medium absorbs the heat of the inverter, so that the heat utilization rate of the organic Rankine cycle power generation system is improved to a certain extent, and the waste of heat is reduced.
In some embodiments, the power generating unit further comprises a generator and an inverter, the expander is connected with the generator, the generator is connected with the inverter through a lead, and the inverter cooler is used for cooling the inverter.
In some embodiments, the system further comprises an economizer, the liquid organic working medium is pressurized by the working medium pump and then divided into two paths, one path of the liquid organic working medium enters the inverter cooler, the other path of the liquid organic working medium enters the economizer, and the liquid organic working medium absorbs part of heat of the organic working medium steam discharged by the expansion machine through the economizer. The liquid working medium absorbs heat from the organic working medium steam exhausted by the generator set through the economizer, and further utilizes waste heat.
In some embodiments, the outlet of the expander is in communication with the gas inlet of the economizer, the gas outlet of the economizer is in communication with the inlet of the condenser, the outlet of the working fluid pump is in communication with the liquid inlet of the economizer, and the liquid outlet of the economizer is in communication with the inlet of the evaporator.
In certain embodiments, the condenser is a tubular heat exchanger and the cooling medium of the condenser is cooling water.
In some embodiments, the cooling water of the condenser enters the cooling tower through a cooling water circulating pump, and the cooling water returns to the condenser after exchanging heat with cold air in the cooling tower.
In certain embodiments, the condenser is an evaporative condenser. The evaporative condenser is used for replacing a circulating water cooling system consisting of a traditional tubular heat exchanger, a cooling water circulating pump and a cooling tower, so that the number of equipment is reduced, the condensing efficiency is improved, the stroke of organic working media is shortened, and the requirement on water flow is lowered.
In some embodiments, a liquid storage tank is connected to the pipeline between the condenser and the working medium pump. The liquid storage tank is used for temporarily storing the liquid organic working medium.
Drawings
Fig. 1 is a structure of a circulating water cooling system of an inverter in the prior art.
Fig. 2 is a schematic diagram of an ORC power generation system employing an ORC condensed liquid cooled power generation inverter according to an embodiment of the present disclosure.
FIG. 3 is a schematic diagram of an ORC power generation system employing an ORC condensing liquid cooled power generation inverter according to another embodiment of the present disclosure.
Fig. 4 is a schematic structural diagram of the evaporative condenser in the embodiment shown in fig. 3.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 2, the ORC power generation system using the ORC condensed liquid cooling power generation inverter includes an evaporator 1, a generator set 2, a condenser 3, and a working fluid pump 4. The generator set 2 includes an expander 21, a generator 22, an inverter 23, and an inverter cooler 24, the expander 21 is connected to the generator 22, the generator 22 is connected to the inverter 23 by a wire, and the inverter cooler 24 is used to cool the inverter 23. The evaporator 1, the expander 21, the condenser 3, the working medium pump 4 and the inverter cooler 24 are connected in sequence to form an organic working medium circulation loop. The low-temperature liquid organic working medium is pressed into the inverter cooler 24 by the working medium pump 4, and the heat of the inverter 23 is transferred to the liquid organic working medium through the inverter cooler 24, so that the inverter 23 is cooled. The inverter 23 is cooled by using the organic working medium of the organic Rankine cycle system, an inverter cooling cycle system does not need to be additionally arranged, and the cost is saved. In addition, the organic working medium absorbs the heat of the inverter 23, so that the heat utilization rate of the organic Rankine cycle power generation system is improved to a certain extent, and the waste of heat is reduced.
With continued reference to fig. 2, in some embodiments, the evaporator further includes an economizer 5, an outlet of the expander 21 is communicated with a gas inlet of the economizer 5, a gas outlet of the economizer 5 is communicated with an inlet of the condenser 3, an outlet of the working medium pump 4 is communicated with a liquid inlet of the economizer 5, and a liquid outlet of the economizer 5 is communicated with an inlet of the evaporator 1. The liquid organic working medium is pressurized by the working medium pump 4 and then divided into two paths, one path enters the inverter cooler 24, the other path enters the economizer 5, and the liquid organic working medium absorbs part of heat of the organic working medium steam discharged by the expansion machine 21 through the economizer 5. The liquid organic working medium absorbs heat from the organic working medium steam exhausted by the generator set 2 through the economizer 5, and further utilizes waste heat.
With continued reference to fig. 2, in some embodiments, the condenser 3 is a tubular heat exchanger, and the cooling medium of the condenser 3 is cooling water. The cooling water of the condenser 3 enters a cooling tower 7 through a cooling water circulating pump 6, and the cooling water exchanges heat with cold air in the cooling tower 7 and then returns to the condenser 3.
Referring to fig. 3, in some embodiments, the condenser 3 is an evaporative condenser. The evaporative condenser is used for replacing a circulating water cooling system consisting of the tubular heat exchanger, the cooling water circulating pump 6 and the cooling tower 7, a large cooling water circulating pump 6 is not needed, the consumption of cooling water is saved, and the temperature difference of primary heat exchange is reduced. For example, referring to fig. 4, the condenser 3 includes a housing 31, a coil 32, and a spraying system 33, and the coil 32 and the spraying system 33 are disposed in the housing 31. The organic working medium steam enters the coil pipe 32 from an inlet at the upper end of the coil pipe 32 and moves downwards along the coil pipe 32, the spraying system 33 sprays water on the outer wall of the coil pipe 32, part of the water evaporates to absorb the heat of the organic working medium steam in the coil pipe 32, so that the organic working medium steam is condensed into liquid organic working medium, the liquid organic working medium flows out from an outlet at the lower end of the coil pipe 32, and the water steam is discharged from the upper end of the shell 31. Part of the spray water evaporates and absorbs heat to condense the organic working medium steam in the coil pipe 5. Preferably, the coil 32 is spirally wound from top to bottom, the spraying system 33 is positioned above the coil 32, the organic working medium has a longer stroke in the coil 32, and the spray water moves from top to bottom, so that the spray water has longer evaporation time, and the condensation efficiency of the evaporative cooler is improved. Further, the evaporative cooler 3 further comprises a water pump 34, a water collection tank 36 is formed at the bottom of the housing 31, and the water pump 34 is used for pumping water in the water collection tank 36 to supply the water to the spraying system 33. Further, the upper end of the housing 31 is provided with a fan 35, and the side wall of the housing 31 is provided with an air inlet grille 37. Specifically, the intake grill 37 is disposed at a position higher than the water collection tank 36 and lower than the coil 32. The fan 35 is capable of drawing hot saturated air away and removing a significant amount of heat. In the process that the unevaporated spray water falls to the water collection tank 36, dry and cold air entering the evaporative cooler from the air inlet grille 37 exchanges heat with the spray water to reduce the temperature of the spray water, and the spray water enters the water collection tank 36 and then continuously participates in circulation. Further, the evaporative cooler 3 further includes a water separator 38, the water separator 38 being disposed below the air inlet of the fan 8, the water separator 38 being configured to collect moisture in the hot saturated air. Further, a PVC water spraying sheet 39 is arranged above the water collecting tank 36. The unevaporated shower water falls onto the PVC water sprinkling sheet 39, and the heat exchange layer formed on the PVC water sprinkling sheet 39 is cooled by the cold air, thereby improving the cooling effect of the unevaporated shower water.
In some embodiments, referring to fig. 3, a liquid storage tank 8 is connected to a pipeline between the condenser 3 and the working medium pump 4. The liquid storage tank 8 is used for temporarily storing the liquid organic working medium.
What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.
Claims (8)
1. The ORC power generation system is characterized by comprising an evaporator (1), a generator set (2), a condenser (3) and a working medium pump (4), wherein the generator set (2) comprises an expansion machine (21) and an inverter cooler (24), and the evaporator (1), the expansion machine (21), the condenser (3), the working medium pump (4) and the inverter cooler (24) are sequentially connected to form an organic working medium circulation loop.
2. The ORC power generation system with ORC condensed liquid cooled power generation inverter according to claim 1, wherein the generator set (2) further comprises a generator (22) and an inverter (23), the expander (21) being connected to the generator (22), the generator (22) being connected to the inverter (23) by wires, the inverter cooler (24) being used to cool the inverter (23).
3. The ORC power generation system using an ORC condensed liquid to cool a power generation inverter according to claim 1, further comprising an economizer (5), wherein the liquid organic working medium is pressurized by the working medium pump (4) and then divided into two paths, one path enters the inverter cooler (24) and the other path enters the economizer (5), and the liquid organic working medium absorbs part of the heat of the organic working medium vapor discharged from the expander (21) through the economizer (5).
4. The ORC power generation system with ORC condensed liquid cooled power generation inverter according to claim 3, wherein the outlet of said expander (21) is in communication with the gas inlet of said economizer (5), the gas outlet of said economizer (5) is in communication with the inlet of said condenser (3), the outlet of said working fluid pump (4) is in communication with the liquid inlet of said economizer (5), and the liquid outlet of said economizer (5) is in communication with the inlet of said evaporator (1).
5. The ORC power generation system with an ORC condensate liquid cooled power generation inverter according to claim 1, wherein the condenser (3) is a tubular heat exchanger.
6. The ORC power generation system with an ORC condensate liquid cooled power generation inverter according to claim 5, wherein the cooling water of the condenser (3) enters a cooling tower (7) through a cooling water circulation pump (6), and the cooling water is returned to the condenser (3) after exchanging heat with cold air in the cooling tower (7).
7. The ORC power generation system with an ORC condensed liquid cooled power generation inverter according to claim 1, wherein the condenser (3) is an evaporative condenser.
8. The ORC power generation system with an ORC condensate liquid cooled power generation inverter according to claim 7, wherein a liquid storage tank (8) is connected to the pipeline between the condenser (3) and the working fluid pump (4).
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| CN201922087361.5U CN211524915U (en) | 2019-11-28 | 2019-11-28 | ORC power generation system employing ORC condensate liquid to cool power generation inverter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735681A (en) * | 2019-11-28 | 2020-01-31 | 苏州必信空调有限公司 | Organic Rankine cycle power generation system adopting organic Rankine cycle condensed liquid to cool power generation inverter |
| CN113141151A (en) * | 2021-03-19 | 2021-07-20 | 句容协鑫集成科技有限公司 | Photovoltaic photo-thermal component with high integration level |
| CN113565592A (en) * | 2021-09-01 | 2021-10-29 | 房盼盼 | Distributed cold, water and electricity cogeneration system |
-
2019
- 2019-11-28 CN CN201922087361.5U patent/CN211524915U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735681A (en) * | 2019-11-28 | 2020-01-31 | 苏州必信空调有限公司 | Organic Rankine cycle power generation system adopting organic Rankine cycle condensed liquid to cool power generation inverter |
| CN113141151A (en) * | 2021-03-19 | 2021-07-20 | 句容协鑫集成科技有限公司 | Photovoltaic photo-thermal component with high integration level |
| CN113565592A (en) * | 2021-09-01 | 2021-10-29 | 房盼盼 | Distributed cold, water and electricity cogeneration system |
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Address after: 215000 No.158 Jinshajiang Road, high tech Zone, Suzhou City, Jiangsu Province Patentee after: Bixin energy technology (Suzhou) Co.,Ltd. Address before: 215000 No.158 Jinshajiang Road, high tech Zone, Suzhou City, Jiangsu Province Patentee before: SUZHOU BSE AIR CONDITIONER Co.,Ltd. |
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