CN203175634U - Cascade organic Rankine cycle system - Google Patents
Cascade organic Rankine cycle system Download PDFInfo
- Publication number
- CN203175634U CN203175634U CN 201320149864 CN201320149864U CN203175634U CN 203175634 U CN203175634 U CN 203175634U CN 201320149864 CN201320149864 CN 201320149864 CN 201320149864 U CN201320149864 U CN 201320149864U CN 203175634 U CN203175634 U CN 203175634U
- Authority
- CN
- China
- Prior art keywords
- organic rankine
- vaporizer
- cycling element
- rankine cycling
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The utility model discloses a cascade organic Rankine cycle system, which comprises two or more than two groups of organic Rankine cycle units, wherein each organic Rankine cycle unit respectively comprises a condenser, a liquid pump, an evaporator, an expansion machine and a power generator, the condenser, the liquid pump, the evaporator and the expansion machine are sequentially connected for forming a cycle, the expansion machine drives the power generator to generate electricity, the evaporators of each organic Rankine cycle unit are sequentially and serially connected through pipelines, a heat source sequentially passes through the evaporators of each organic Rankine cycle unit and respectively provides heat energy for the evaporators of each organic Rankine cycle unit, and each organic Rankine cycle unit utilizes heat energy provided by the heat source for respectively carrying out organic Rankine cycle. The cascade organic Rankine cycle system provided by the utility model has the advantages that the evaporators of each organic Rankine cycle unit are serially connected, the energy of the heat source can be sufficiently and efficiently utilized, and the heat efficiency (the ratio of the output energy and the input heat energy) of the system is effectively improved.
Description
Technical field
The utility model belongs to organic Rankine circulating technology field, relates to a kind of organic rankine cycle system, relates in particular to a kind of tandem formula organic rankine cycle system.
Background technique
See also Fig. 1, Fig. 1 is that (Organic Rankin Cycle, ORC) system comprise decompressor 1 ', generator 2 ', vaporizer 3 ', liquid pump 4 ', condenser 5 ' in a typical organic Rankine circulation.
The liquid refrigerating working medium of low-temp low-pressure is boosted in liquid pump 4 '; Enter vaporizer 3 ' then and be heated vaporization, after becoming overheated gas (High Temperature High Pressure), enter decompressor 1 ' expansion acting, drive generator 2 ' generating.Low-temp low-pressure gas after the acting enters condenser 5 ' and is cooled and condenses into liquid; Return in the liquid pump 4 ', finish a circulation.
For the organic Rankine circulation, the temperature difference between hot fluid and the ambient temperature is more big, and the thermal efficiency is more high.Yet existing organic rankine cycle system includes only one group of organic Rankine cycling element (namely only comprising a decompressor, a generator, a vaporizer, a liquid pump, a condenser); Thermal source only connects a vaporizer usually, and the thermal efficiency of system is still waiting further raising.
In addition, because the size of decompressor has certain limitation, in order to take full advantage of the energy of thermal source, with the parallel connection of some groups of organic Rankine cycling elements, as shown in Figure 2, but still there is not the lower problem of the resolution system thermal efficiency in some systems.
In view of this, nowadays press for a kind of new organic rankine cycle system of design, to improve the defective of existing system.
The model utility content
Technical problem to be solved in the utility model is: a kind of tandem formula organic rankine cycle system is provided, can effectively improves the thermal efficiency.
For solving the problems of the technologies described above, the utility model adopts following technological scheme:
A kind of tandem formula organic rankine cycle system, described system comprises two groups or more organic Rankine cycling element;
Each organic Rankine cycling element includes condenser, liquid pump, vaporizer, decompressor, generator, and condenser, liquid pump, vaporizer, decompressor connect successively, forms a circulation, and decompressor drives generator for electricity generation;
By the pipeline serial connection, thermal source passes through the vaporizer of each organic Rankine cycling element to the vaporizer of each organic Rankine cycling element successively successively, and the vaporizer that is respectively each organic Rankine cycling element provides heat energy; The heat energy that each organic Rankine cycling element utilizes thermal source to provide carries out the organic Rankine circulation respectively.
As a kind of preferred version of the present utility model, each organic Rankine cycling element uses condenser separately, perhaps, and the part or all of public common condenser of organic Rankine cycling element.
As a kind of preferred version of the present utility model, the organic Rankine endless form of each organic Rankine cycling element is as follows: the liquid refrigerating working medium of low-temp low-pressure is boosted in the liquid pump; Enter vaporizer then and be heated vaporization, behind the overheated gas that becomes High Temperature High Pressure, enter decompressor expansion acting, drive generator for electricity generation; Low-temp low-pressure gas after the acting enters condenser and is cooled and condenses into liquid; Return in the liquid pump, finish an organic Rankine circulation.
As a kind of preferred version of the present utility model, described system mainly comprises the first organic Rankine cycling element, the second organic Rankine cycling element;
The described first organic Rankine cycling element comprises first vaporizer, and the described second organic Rankine cycling element comprises second vaporizer;
The outlet of described first vaporizer connects the entrance of second vaporizer, and thermal source is successively through first vaporizer, second vaporizer;
Thermal source through first vaporizer after, temperature is by first temperature T
1Reduce to second temperature T
2Thermal source through second vaporizer after, temperature is by second temperature T
2Reduce to the 3rd temperature T
3
As a kind of preferred version of the present utility model, described system mainly comprises the first organic Rankine cycling element, the second organic Rankine cycling element, the 3rd organic Rankine cycling element;
The described first organic Rankine cycling element comprises first vaporizer, and the described second organic Rankine cycling element comprises second vaporizer, and described the 3rd organic Rankine cycling element comprises the 3rd vaporizer;
The outlet of described first vaporizer connects the entrance of second vaporizer, and the outlet of second vaporizer connects the entrance of the 3rd vaporizer, and thermal source is successively through first vaporizer, second vaporizer, the 3rd vaporizer;
Thermal source through first vaporizer after, temperature is by first temperature T
1Reduce to second temperature T
2Thermal source through second vaporizer after, temperature is by second temperature T
2Reduce to the 3rd temperature T
3Thermal source through the 3rd vaporizer after, temperature is by the 3rd temperature T
3Reduce to the 4th temperature T
4
As a kind of preferred version of the present utility model, described organic rankine cycle system comprises N group organic Rankine cycling element, be respectively the first organic Rankine cycling element, the second organic Rankine cycling element, the 3rd organic Rankine cycling element ..., N organic Rankine cycling element; Wherein, N 〉=3;
The described first organic Rankine cycling element comprises first vaporizer, the described second organic Rankine cycling element comprises second vaporizer, and described the 3rd organic Rankine cycling element comprises the 3rd vaporizer ... by that analogy, N organic Rankine cycling element comprises the N vaporizer;
The outlet of described first vaporizer connects the entrance of second vaporizer, the outlet of second vaporizer connects the entrance of the 3rd vaporizer, by that analogy, the outlet of N-1 vaporizer connects the entrance of N vaporizer, thermal source successively through first vaporizer, second vaporizer, the 3rd vaporizer ..., the N vaporizer;
Thermal source through first vaporizer after, temperature is by first temperature T
1Reduce to second temperature T
2Thermal source through second vaporizer after, temperature is by second temperature T
2Reduce to the 3rd temperature T
3Thermal source through the 3rd vaporizer after, temperature is by the 3rd temperature T
3Reduce to the 4th temperature T
4 By that analogy, thermal source through the N vaporizer after, temperature is by the N temperature T
NReduce to the N+1 temperature T
N+1
A kind of tandem formula organic rankine cycle system, described system comprises three groups or three groups of above organic Rankine cycling elements;
Each organic Rankine cycling element includes condenser, liquid pump, vaporizer, decompressor, generator, and condenser, liquid pump, vaporizer, decompressor connect successively, forms a circulation, and decompressor drives generator for electricity generation;
The vaporizer of each organic Rankine cycling element is connected in series by pipeline successively; Perhaps, the vaporizer of each organic Rankine cycling element links together, wherein, and part evaporator series, the parallel connection of part vaporizer;
Thermal source is through the vaporizer of each organic Rankine cycling element, and the vaporizer that is respectively each organic Rankine cycling element provides heat energy; The heat energy that each organic Rankine cycling element utilizes thermal source to provide carries out the organic Rankine circulation respectively.
As a kind of preferred version of the present utility model, described system comprises two-stage or the above organic Rankine cycling element of two-stage; Wherein, one or more levels comprises the parallel connection of two or more organic Rankine cycling element.
As a kind of preferred version of the present utility model, each organic Rankine cycling element uses condenser separately, perhaps, and the part or all of public common condenser of organic Rankine cycling element.
The beneficial effects of the utility model are: tandem formula organic rankine cycle system and the electricity-generating method thereof that the utility model proposes, by the evaporator series with a plurality of organic Rankine cycling elements, can fully efficiently utilize the energy of thermal source, effectively improve the thermal efficiency (i.e. the ratio of the heat energy of Shu Chu energy and input) of system.
Description of drawings
Fig. 1 is the composition schematic representation of existing organic Rankine cycle generating system.
Fig. 2 is the composition schematic representation of existing organic Rankine cycle power generation system in parallel.
Fig. 3 is the composition schematic representation of the utility model organic rankine cycle system.
Fig. 4 is the composition schematic representation of organic rankine cycle system among the embodiment two.
Fig. 5 is the composition schematic representation of organic rankine cycle system among the embodiment four.
Accompanying drawing primary clustering symbol description is as follows:
1 ': decompressor 2 ': generator
3 ': vaporizer 4 ': the liquid pump
5 ': condenser 1: decompressor
2: generator 3: vaporizer
4: liquid pump 5: condenser
102: the second organic Rankine cycling elements of 101: the first organic Rankine cycling elements
104: the four organic Rankine cycling elements of 103: the three organic Rankine cycling elements
105: the five organic Rankine cycling elements
Embodiment
Describe preferred embodiment of the present utility model in detail below in conjunction with accompanying drawing.
Embodiment one
See also Fig. 3, the utility model has disclosed a kind of tandem formula organic rankine cycle system, and described system comprises two groups or more organic Rankine cycling element.Each organic Rankine cycling element includes condenser 5, liquid pump 4, vaporizer 3, decompressor 1, generator 2, and condenser 5, liquid pump 4, vaporizer 3, decompressor 1 connect successively, forms a circulation, and decompressor 1 drives generator 2 generatings.
By the pipeline serial connection, thermal source passes through the vaporizer 3 of each organic Rankine cycling element to the vaporizer 3 of each organic Rankine cycling element successively successively, and the vaporizer 3 that is respectively each organic Rankine cycling element provides heat energy; The heat energy that each organic Rankine cycling element utilizes thermal source to provide carries out the organic Rankine circulation respectively.
The organic Rankine endless form of each organic Rankine cycling element is as follows: the liquid refrigerating working medium of low-temp low-pressure is boosted in liquid pump 4; Enter vaporizer 3 then and be heated vaporization, behind the overheated gas that becomes High Temperature High Pressure, enter decompressor 1 expansion acting, drive generator 2 generatings; Low-temp low-pressure gas after the acting enters condenser 5 and is cooled and condenses into liquid; Return in the liquid pump 4, finish an organic Rankine circulation.
In the present embodiment, as shown in Figure 3, described system mainly comprises the first organic Rankine cycling element, the second organic Rankine cycling element.The described first organic Rankine cycling element comprises first vaporizer, and the described second organic Rankine cycling element comprises second vaporizer.The outlet of described first vaporizer connects the entrance of second vaporizer, and thermal source is successively through first vaporizer, second vaporizer.Thermal source through first vaporizer after, temperature is by first temperature T
1Reduce to second temperature T
2Thermal source through second vaporizer after, temperature is by second temperature T
2Reduce to the 3rd temperature T
3
More than introduced the utility model tandem formula organic rankine cycle system composition, the utility model is when disclosing said system, also disclose a kind of electricity-generating method that utilizes above-mentioned tandem formula organic rankine cycle system, described method comprises: the vaporizer of each organic Rankine cycling element is connected in series by pipeline, thermal source passes through the vaporizer of each organic Rankine cycling element successively, and the vaporizer that is respectively each organic Rankine cycling element provides heat energy; The heat energy that each organic Rankine cycling element utilizes thermal source to provide carries out the organic Rankine circulation respectively.
The organic Rankine endless form of each organic Rankine cycling element is as follows: the liquid refrigerating working medium of low-temp low-pressure is boosted in the liquid pump; Liquid refrigerating working medium after boosting enters vaporizer and is heated vaporization, until the overheated gas that becomes High Temperature High Pressure; In the heating and gasifying process, thermal source all can release heat also be lowered the temperature through each vaporizer; Overheated gas enters decompressor expansion acting, drives generator for electricity generation; Low-temp low-pressure gas after the acting enters condenser and is cooled and condenses into liquid; Return in the liquid pump, finish an organic Rankine circulation.
In the present embodiment, described electricity-generating method specifically comprises:
[step S1] thermal source is through the vaporizer of the first organic Rankine cycling element, and temperature is by first temperature T
1Reduce to second temperature T
2
The heat energy that the first organic Rankine cycling element utilizes thermal source to provide carries out the organic Rankine circulation, and mode is as follows: the liquid refrigerating working medium of low-temp low-pressure is boosted in the liquid pump; Liquid refrigerating working medium after boosting enters vaporizer and is heated vaporization, until the overheated gas that becomes High Temperature High Pressure; In the heating and gasifying process, thermal source all can release heat also be lowered the temperature through each vaporizer, and temperature is by first temperature T
1Reduce to second temperature T
2Overheated gas enters decompressor expansion acting, drives generator for electricity generation; Low-temp low-pressure gas after the acting enters condenser and is cooled and condenses into liquid; Return in the liquid pump, finish an organic Rankine circulation.
Behind the vaporizer of [step S2] thermal source through the first organic Rankine cycling element, enter the vaporizer of the second organic Rankine cycling element, temperature is by second temperature T
2Reduce to the 3rd temperature T
3
The heat energy that the second organic Rankine cycling element utilizes thermal source to provide carries out the organic Rankine circulation, and mode is as follows: the liquid refrigerating working medium of low-temp low-pressure is boosted in the liquid pump; Liquid refrigerating working medium after boosting enters vaporizer and is heated vaporization, until the overheated gas that becomes High Temperature High Pressure; In the heating and gasifying process, thermal source all can release heat also be lowered the temperature through each vaporizer, and temperature is by second temperature T
2Reduce to the 3rd temperature T
3Overheated gas enters decompressor expansion acting, drives generator for electricity generation; Low-temp low-pressure gas after the acting enters condenser and is cooled and condenses into liquid; Return in the liquid pump, finish an organic Rankine circulation.
Because in the organic rankine cycle system, the temperature difference between hot fluid temperature and the ambient temperature is more big, the thermal efficiency of system is more high.As shown in Figure 1, existing organic rankine cycle system only utilizes thermal source (temperature is by T
1Reduce to T
3) realizing an organic Rankine circulation, the thermal efficiency and the hot fluid temperature of this organic Rankine circulation (are roughly (T
1+ T
3)/2) and ambient temperature T
0Between the temperature difference (be roughly: (T
1+ T
3)/2-T
0) relevant, the temperature difference is more big, and the thermal efficiency is more high.
And review the organic rankine cycle system of present embodiment, in conjunction with Fig. 3, (temperature is equally by T to utilize thermal source
1Reduce to T
3) having realized two organic Rankine circulations: the thermal efficiency of the first organic Rankine cycling element and the temperature difference (are roughly: (T
1+ T
2)/2-T
0) relevant, the temperature difference is more big, and the thermal efficiency is more high.As seen the thermal efficiency of the first organic Rankine cycling element is namely greater than the thermal efficiency of the organic Rankine realized among Fig. 1 circulation.
The thermal efficiency of the second organic Rankine cycling element and the temperature difference (are roughly: (T
2+ T
3)/2-T
0) relevant, the temperature difference is more big, and the thermal efficiency is more high.Generally speaking, the thermal efficiency of the second organic Rankine cycling element is also near the thermal efficiency of the organic Rankine realized among Fig. 1 circulation.
Therefore, in the present embodiment, the thermal efficiency of system is compared existing typical organic rankine cycle system have been had and has increased exponentially.
Embodiment two
See also Fig. 4, present embodiment and embodiment's one difference is that in the present embodiment, described tandem formula organic rankine cycle system mainly comprises the first organic Rankine cycling element, the second organic Rankine cycling element, the 3rd organic Rankine cycling element.
The described first organic Rankine cycling element comprises first vaporizer, and the described second organic Rankine cycling element comprises second vaporizer, and described the 3rd organic Rankine cycling element comprises the 3rd vaporizer.The outlet of described first vaporizer connects the entrance of second vaporizer, and the outlet of second vaporizer connects the entrance of the 3rd vaporizer, and thermal source is successively through first vaporizer, second vaporizer, the 3rd vaporizer.
Thermal source through first vaporizer after, temperature is by first temperature T
1Reduce to second temperature T
2Thermal source through second vaporizer after, temperature is by second temperature T
2Reduce to the 3rd temperature T
3Thermal source through the 3rd vaporizer after, temperature is by the 3rd temperature T
3Reduce to the 4th temperature T
4
The electricity-generating method of above-mentioned tandem formula organic rankine cycle system specifically comprises:
[step S1] thermal source is through the vaporizer of the first organic Rankine cycling element, and temperature is by first temperature T
1Reduce to second temperature T
2
The heat energy that the first organic Rankine cycling element utilizes thermal source to provide carries out the organic Rankine circulation, and mode is as follows: the liquid refrigerating working medium of low-temp low-pressure is boosted in the liquid pump; Liquid refrigerating working medium after boosting enters vaporizer and is heated vaporization, until the overheated gas that becomes High Temperature High Pressure; In the heating and gasifying process, thermal source all can release heat also be lowered the temperature through each vaporizer, and temperature is by first temperature T
1Reduce to second temperature T
2Overheated gas enters decompressor expansion acting, drives generator for electricity generation; Low-temp low-pressure gas after the acting enters condenser and is cooled and condenses into liquid; Return in the liquid pump, finish an organic Rankine circulation;
Behind the vaporizer of [step S2] thermal source through the first organic Rankine cycling element, enter the vaporizer of the second organic Rankine cycling element, temperature is by second temperature T
2Reduce to the 3rd temperature T
3
The heat energy that the second organic Rankine cycling element utilizes thermal source to provide carries out the organic Rankine circulation, and mode is as follows: the liquid refrigerating working medium of low-temp low-pressure is boosted in the liquid pump; Liquid refrigerating working medium after boosting enters vaporizer and is heated vaporization, until the overheated gas that becomes High Temperature High Pressure; In the heating and gasifying process, thermal source all can release heat also be lowered the temperature through each vaporizer, and temperature is by second temperature T
2Reduce to the 3rd temperature T
3Overheated gas enters decompressor expansion acting, drives generator for electricity generation; Low-temp low-pressure gas after the acting enters condenser and is cooled and condenses into liquid; Return in the liquid pump, finish an organic Rankine circulation;
Behind the vaporizer of [step S3] thermal source through the second organic Rankine cycling element, enter the vaporizer of the 3rd organic Rankine cycling element, temperature is by the 3rd temperature T
3Reduce to the 4th temperature T
4
The heat energy that the 3rd organic Rankine cycling element utilizes thermal source to provide carries out the organic Rankine circulation, and mode is as follows: the liquid refrigerating working medium of low-temp low-pressure is boosted in the liquid pump; Liquid refrigerating working medium after boosting enters vaporizer and is heated vaporization, until the overheated gas that becomes High Temperature High Pressure; In the heating and gasifying process, thermal source all can release heat also be lowered the temperature through each vaporizer, and temperature is by the 3rd temperature T
3Reduce to the 4th temperature T
4Overheated gas enters decompressor expansion acting, drives generator for electricity generation; Low-temp low-pressure gas after the acting enters condenser and is cooled and condenses into liquid; Return in the liquid pump, finish an organic Rankine circulation.
In the present embodiment, because system utilizes thermal source to realize three organic Rankine circulations, the thermal efficiency of system is compared existing organic rankine cycle system very large raising.
Embodiment three
Present embodiment and embodiment's one difference is, in the present embodiment, described organic rankine cycle system comprises N group organic Rankine cycling element, be respectively the first organic Rankine cycling element, the second organic Rankine cycling element, the 3rd organic Rankine cycling element ..., N organic Rankine cycling element; Wherein, N 〉=3.
The described first organic Rankine cycling element comprises first vaporizer, the described second organic Rankine cycling element comprises second vaporizer, and described the 3rd organic Rankine cycling element comprises the 3rd vaporizer ... by that analogy, N organic Rankine cycling element comprises the N vaporizer.
The outlet of described first vaporizer connects the entrance of second vaporizer, the outlet of second vaporizer connects the entrance of the 3rd vaporizer, by that analogy, the outlet of N-1 vaporizer connects the entrance of N vaporizer, thermal source successively through first vaporizer, second vaporizer, the 3rd vaporizer ..., the N vaporizer.
Thermal source through first vaporizer after, temperature is by first temperature T
1Reduce to second temperature T
2Thermal source through second vaporizer after, temperature is by second temperature T
2Reduce to the 3rd temperature T
3Thermal source through the 3rd vaporizer after, temperature is by the 3rd temperature T
3Reduce to the 4th temperature T
4 By that analogy, thermal source through the N vaporizer after, temperature is by the N temperature T
NReduce to the N+1 temperature T
N+1
The electricity-generating method of above-mentioned tandem organic rankine cycle system specifically comprises:
[step S1] thermal source is through the vaporizer of the first organic Rankine cycling element, and temperature is by first temperature T
1Reduce to second temperature T
2
The heat energy that the first organic Rankine cycling element utilizes thermal source to provide carries out the organic Rankine circulation, and mode is as follows: the liquid refrigerating working medium of low-temp low-pressure is boosted in the liquid pump; Liquid refrigerating working medium after boosting enters vaporizer and is heated vaporization, until the overheated gas that becomes High Temperature High Pressure; In the heating and gasifying process, thermal source all can release heat also be lowered the temperature through each vaporizer, and temperature is by first temperature T
1Reduce to second temperature T
2Overheated gas enters decompressor expansion acting, drives generator for electricity generation; Low-temp low-pressure gas after the acting enters condenser and is cooled and condenses into liquid; Return in the liquid pump, finish an organic Rankine circulation;
Behind the vaporizer of [step S2] thermal source through the first organic Rankine cycling element, enter the vaporizer of the second organic Rankine cycling element, temperature is by second temperature T
2Reduce to the 3rd temperature T
3
The heat energy that the second organic Rankine cycling element utilizes thermal source to provide carries out the organic Rankine circulation, and mode is as follows: the liquid refrigerating working medium of low-temp low-pressure is boosted in the liquid pump; Liquid refrigerating working medium after boosting enters vaporizer and is heated vaporization, until the overheated gas that becomes High Temperature High Pressure; In the heating and gasifying process, thermal source all can release heat also be lowered the temperature through each vaporizer, and temperature is by second temperature T
2Reduce to the 3rd temperature T
3Overheated gas enters decompressor expansion acting, drives generator for electricity generation; Low-temp low-pressure gas after the acting enters condenser and is cooled and condenses into liquid; Return in the liquid pump, finish an organic Rankine circulation;
Behind the vaporizer of [step S3] thermal source through i organic Rankine cycling element, enter the vaporizer of i+1 organic Rankine cycling element, temperature is by the i+1 temperature T
I+1Reduce to the i+2 temperature T
I+2The i initial value is 2, and behind every vaporizer through an organic Rankine cycling element, i increases by 1, and when i was N-1, thermal source flowed out from system.
Wherein, the heat energy that i+1 organic Rankine cycling element utilizes thermal source to provide carries out the organic Rankine circulation, and mode is as follows: the liquid refrigerating working medium of low-temp low-pressure is boosted in the liquid pump; Liquid refrigerating working medium after boosting enters vaporizer and is heated vaporization, until the overheated gas that becomes High Temperature High Pressure; In the heating and gasifying process, thermal source all can release heat also be lowered the temperature through each vaporizer, and temperature is by the i+1 temperature T
I+1Reduce to the i+2 temperature T
I+2Overheated gas enters decompressor expansion acting, drives generator for electricity generation; Low-temp low-pressure gas after the acting enters condenser and is cooled and condenses into liquid; Return in the liquid pump, finish an organic Rankine circulation.
Embodiment four
See also Fig. 5, present embodiment discloses a kind of tandem formula organic rankine cycle system, and described system comprises three groups or three groups of above organic Rankine cycling elements.Present embodiment one above embodiment's difference is that in the present embodiment, the vaporizer of each organic Rankine cycling element links together, wherein, and part evaporator series, the parallel connection of part vaporizer.Thermal source is through the vaporizer of each organic Rankine cycling element, and the vaporizer that is respectively each organic Rankine cycling element provides heat energy; The heat energy that each organic Rankine cycling element utilizes thermal source to provide carries out the organic Rankine circulation respectively.
As shown in Figure 5, according to thermal source elapsed time order, described system comprises two-stage or the above organic Rankine cycling element of two-stage; Wherein, one or more levels comprises the parallel connection of two or more organic Rankine cycling element.Among Fig. 5, the first organic Rankine cycling element 101 is as the first order, and the second organic Rankine cycling element 102, the 4th organic Rankine cycling element 104 are as the second level, and the 3rd organic Rankine cycling element 103, the 5th organic Rankine cycling element 105 are as the third level.In the present embodiment, there is two organic Rankine cycling elements (the second organic Rankine cycling element 102, the 4th organic Rankine cycling element 104) parallel connection the second level.
Below comprise that with the utility model tandem formula organic rankine cycle system five groups of organic Rankine cycling elements are the implementation that example is introduced present embodiment.
As shown in Figure 5, tandem formula organic rankine cycle system comprises the first organic Rankine cycling element 101, the second organic Rankine cycling element 102, the 3rd organic Rankine cycling element 103, the 4th organic Rankine cycling element 104, the 5th organic Rankine cycling element 105.
Wherein, the second organic Rankine cycling element 102 is in parallel with the 3rd organic Rankine cycling element 103, and the first organic Rankine cycling element 101 is connected (i.e. the outlet of the vaporizer of the first organic Rankine cycling element 101 is connected the entrance of the second organic Rankine cycling element 102, the 4th organic Rankine cycling element 104 vaporizers respectively) with the second organic Rankine cycling element 102, the 4th organic Rankine cycling element 104 respectively.The second organic Rankine cycling element 102 and 103 series connection (outlet of the second organic Rankine cycling element, 102 vaporizers is connected the entrance of the 3rd organic Rankine cycling element 103 vaporizers) of the 3rd organic Rankine cycling element, the 4th organic Rankine cycling element 104 and 105 series connection (outlet of the 4th organic Rankine cycling element 104 vaporizers is connected the entrance of the 5th organic Rankine cycling element 105 vaporizers) of the 5th organic Rankine cycling element.
Concrete implementation sees also above embodiment, does not do here and gives unnecessary details.By the scheme in the present embodiment, owing to include the vaporizer of series connection in the system, can improve the thermal efficiency of system equally.
Embodiment five
Present embodiment and above embodiment's difference is, in the present embodiment, and the part or all of public common condenser of organic Rankine cycling element.
In sum, tandem formula organic rankine cycle system and the electricity-generating method thereof that the utility model proposes, by the evaporator series with a plurality of organic Rankine cycling elements, can fully efficiently utilize the energy of thermal source, effectively improve the thermal efficiency (i.e. the ratio of the heat energy of Shu Chu energy and input) of system.
Here description of the present utility model and application is illustrative, is not to want with scope restriction of the present utility model in the above-described embodiments.Here disclosed embodiment's distortion and change is possible, and the various parts of embodiment's replacement and equivalence are known for those those of ordinary skill in the art.Those skilled in the art are noted that under the situation that does not break away from spirit of the present utility model or substantive characteristics, and the utility model can be with other form, structure, layout, ratio, and realize with other assembly, material and parts.Under the situation that does not break away from the utility model scope and spirit, can carry out other distortion and change to disclosed embodiment here.
Claims (8)
1. a tandem formula organic rankine cycle system is characterized in that, described system comprises two groups or more organic Rankine cycling element;
Each organic Rankine cycling element includes condenser, liquid pump, vaporizer, decompressor, generator, and condenser, liquid pump, vaporizer, decompressor connect successively, forms a circulation, and decompressor drives generator for electricity generation;
By the pipeline serial connection, thermal source passes through the vaporizer of each organic Rankine cycling element to the vaporizer of each organic Rankine cycling element successively successively, and the vaporizer that is respectively each organic Rankine cycling element provides heat energy; The heat energy that each organic Rankine cycling element utilizes thermal source to provide carries out the organic Rankine circulation respectively.
2. tandem formula organic rankine cycle system according to claim 1 is characterized in that:
Each organic Rankine cycling element uses condenser separately, perhaps, and the part or all of public common condenser of organic Rankine cycling element.
3. tandem formula organic rankine cycle system according to claim 1 and 2 is characterized in that:
Described system mainly comprises the first organic Rankine cycling element, the second organic Rankine cycling element;
The described first organic Rankine cycling element comprises first vaporizer, and the described second organic Rankine cycling element comprises second vaporizer;
The outlet of described first vaporizer connects the entrance of second vaporizer, and thermal source is successively through first vaporizer, second vaporizer;
Thermal source through first vaporizer after, temperature is by first temperature T
1Reduce to second temperature T
2Thermal source through second vaporizer after, temperature is by second temperature T
2Reduce to the 3rd temperature T
3
4. tandem formula organic rankine cycle system according to claim 1 and 2 is characterized in that:
Described system mainly comprises the first organic Rankine cycling element, the second organic Rankine cycling element, the 3rd organic Rankine cycling element;
The described first organic Rankine cycling element comprises first vaporizer, and the described second organic Rankine cycling element comprises second vaporizer, and described the 3rd organic Rankine cycling element comprises the 3rd vaporizer;
The outlet of described first vaporizer connects the entrance of second vaporizer, and the outlet of second vaporizer connects the entrance of the 3rd vaporizer, and thermal source is successively through first vaporizer, second vaporizer, the 3rd vaporizer.
5. tandem formula organic rankine cycle system according to claim 1 and 2 is characterized in that:
Described organic rankine cycle system comprises N group organic Rankine cycling element, be respectively the first organic Rankine cycling element, the second organic Rankine cycling element, the 3rd organic Rankine cycling element ..., N organic Rankine cycling element; Wherein, N 〉=3;
The described first organic Rankine cycling element comprises first vaporizer, the described second organic Rankine cycling element comprises second vaporizer, and described the 3rd organic Rankine cycling element comprises the 3rd vaporizer ... by that analogy, N organic Rankine cycling element comprises the N vaporizer;
The outlet of described first vaporizer connects the entrance of second vaporizer, the outlet of second vaporizer connects the entrance of the 3rd vaporizer, by that analogy, the outlet of N-1 vaporizer connects the entrance of N vaporizer, thermal source successively through first vaporizer, second vaporizer, the 3rd vaporizer ..., the N vaporizer.
6. a tandem formula organic rankine cycle system is characterized in that, described system comprises three groups or three groups of above organic Rankine cycling elements;
Each organic Rankine cycling element includes condenser, liquid pump, vaporizer, decompressor, generator, and condenser, liquid pump, vaporizer, decompressor connect successively, forms a circulation, and decompressor drives generator for electricity generation;
The vaporizer of each organic Rankine cycling element is connected in series by pipeline successively; Perhaps, the vaporizer of each organic Rankine cycling element links together, wherein, and part evaporator series, the parallel connection of part vaporizer;
Thermal source is through the vaporizer of each organic Rankine cycling element, and the vaporizer that is respectively each organic Rankine cycling element provides heat energy; The heat energy that each organic Rankine cycling element utilizes thermal source to provide carries out the organic Rankine circulation respectively.
7. tandem formula organic rankine cycle system according to claim 6 is characterized in that:
Described system comprises two-stage or the above organic Rankine cycling element of two-stage; Wherein, one or more levels comprises the parallel connection of two or more organic Rankine cycling element.
8. according to claim 6 or 7 described tandem formula organic rankine cycle systems, it is characterized in that:
Each organic Rankine cycling element uses condenser separately, perhaps, and the part or all of public common condenser of organic Rankine cycling element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320149864 CN203175634U (en) | 2013-03-28 | 2013-03-28 | Cascade organic Rankine cycle system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320149864 CN203175634U (en) | 2013-03-28 | 2013-03-28 | Cascade organic Rankine cycle system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203175634U true CN203175634U (en) | 2013-09-04 |
Family
ID=49072349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320149864 Expired - Fee Related CN203175634U (en) | 2013-03-28 | 2013-03-28 | Cascade organic Rankine cycle system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203175634U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195520A (en) * | 2013-03-28 | 2013-07-10 | 上海维尔泰克螺杆机械有限公司 | Cascade organic Rankine cycle system and generating method thereof |
| CN106121754A (en) * | 2016-06-29 | 2016-11-16 | 南京航空航天大学 | Step recycles ORC system and the method for low-grade heat |
| CN106523056A (en) * | 2016-11-08 | 2017-03-22 | 华北电力大学（保定） | Organic working medium rankine cycle system |
-
2013
- 2013-03-28 CN CN 201320149864 patent/CN203175634U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195520A (en) * | 2013-03-28 | 2013-07-10 | 上海维尔泰克螺杆机械有限公司 | Cascade organic Rankine cycle system and generating method thereof |
| CN106121754A (en) * | 2016-06-29 | 2016-11-16 | 南京航空航天大学 | Step recycles ORC system and the method for low-grade heat |
| CN106523056A (en) * | 2016-11-08 | 2017-03-22 | 华北电力大学（保定） | Organic working medium rankine cycle system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103195520A (en) | Cascade organic Rankine cycle system and generating method thereof | |
| CN103266924B (en) | System and method for efficiently generating power from steam | |
| CN103775145A (en) | Organic Rankine circulating system with double-ejector supercharging device | |
| CN108798808B (en) | CO for recovering waste heat of high-temperature flue gas２Cyclic cogeneration system | |
| CN203175634U (en) | Cascade organic Rankine cycle system | |
| CN107503813A (en) | Using the gravity-type of low grade heat energy driving without pump organic working medium TRT | |
| CN110700907A (en) | Single working medium combined cycle steam power device | |
| CN204402597U (en) | A kind of supercharging main frame coaxial drive feed water pump system of the little machine that draws gas containing back pressure | |
| CN109826679A (en) | A kind of tandem twin-stage evaporation organic rankine cycle system of mixing preheating | |
| CN201715492U (en) | Set back-heating system adopting different pressure ratings of steam | |
| CN210530935U (en) | Double-machine regenerative system with multiple shafts arranged | |
| CN203239406U (en) | Water vapor efficient power generation system | |
| CN103195518A (en) | ORC (organic Rankine cycle) power generation system based on series connection of multistage evaporators | |
| CN104329127A (en) | Multi-unit combination expansion system | |
| CN201225172Y (en) | Low boiling point medium power generation system with exhaust steam energy recovery and utilization apparatus | |
| CN103195517B (en) | Liquid medium steam non-condensing cycle generating system | |
| CN209398468U (en) | A kind of tandem twin-stage evaporation organic rankine cycle system of mixing preheating | |
| CN202970815U (en) | Heat pump for power plant | |
| CN201460996U (en) | Novel all gas-phase thermal cycle power generating device | |
| CN213930897U (en) | A reform transform system for replacing condenser and low pressure feed water heater in power plant | |
| CN203053088U (en) | Waste heat utilization heat pump system | |
| CN114215620B (en) | Self-starting power-consumption-free organic working medium expansion-flash evaporation power generation system and process | |
| CN213955402U (en) | Multistage multi-process absorption heat pump circulating water waste heat recovery system | |
| CN116558140B (en) | Combined cooling and power system | |
| CN210264841U (en) | Waste heat power generation system with bypass valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |