CN210033736U - Medium-low temperature terrestrial heat ORC magnetic suspension composite step power generation system - Google Patents
Medium-low temperature terrestrial heat ORC magnetic suspension composite step power generation system Download PDFInfo
- Publication number
- CN210033736U CN210033736U CN201920813626.2U CN201920813626U CN210033736U CN 210033736 U CN210033736 U CN 210033736U CN 201920813626 U CN201920813626 U CN 201920813626U CN 210033736 U CN210033736 U CN 210033736U
- Authority
- CN
- China
- Prior art keywords
- stage
- condenser
- generator
- orc
- power generation
- 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.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The utility model relates to a middle and low temperature terrestrial heat ORC magnetic suspension composite step power generation system, which comprises a first-stage ORC generator set and a second-stage ORC generator set; the first-stage ORC generator set comprises a first-stage evaporator used for evaporating a first working medium, a first-stage generator connected with the first-stage evaporator, a second-stage evaporator connected with the first-stage generator and used for evaporating a second working medium, and a first condenser respectively connected with the second-stage evaporator and the first-stage evaporator; the two-stage ORC generator set comprises the two-stage evaporator, a two-stage generator connected with the two-stage evaporator, and a second condenser respectively connected with the two-stage evaporator and the two-stage generator; a generator for the concentration of a third working medium, a third condenser and an absorber. The utility model provides a low problem of low temperature geothermal power generation efficiency among the prior art.
Description
Technical Field
The utility model relates to a geothermal energy power generation technical field especially relates to compound step power generation system of well low temperature geothermol power ORC magnetic suspension.
Background
With the exhaustion of fossil energy, renewable energy is on the rise, and geothermal energy as a clean resource with huge reserves is expected to become one of clean energy for replacing traditional fossil energy in the future. The geothermal resource quantity in China is rich, and a geothermal exploitation well 5818 holes are exposed at a hot spring 2334. The quantity of hydrothermal geothermal resources is equivalent to 12500 million tons of standard coal, and the producible quantity is equivalent to 18.65 million tons of standard coal every year; the amount of the shallow geothermal energy resources of over 336 cities in the country is reduced to 7 hundred million tons of standard coal each year; the amount of hot dry rock prospect resources is equivalent to 856 trillion tons of standard coal. However, geothermal resources in China are not distributed geographically uniformly, a small amount of high-temperature geothermal zones are mainly distributed in the western province, Yunnan and other high-altitude areas, and medium-low temperature hydrothermal geothermal resources accounting for more than 95% of the geothermal resources are mainly distributed in the plains (basins) such as North China, Songliao, North Su China, Jianghan, Orldos and Sichuan and the regions such as the southeast coast. Therefore, the existing situation of geothermal resources in China determines that the geothermal development in China mainly takes medium and low temperature geothermal power generation as the main part and high temperature geothermal power generation as the auxiliary part. However, the current medium-low temperature geothermal resource has low power generation efficiency (less than 10 percent) and small power generation amount, and seriously restricts the popularization of the medium-low temperature geothermal resource power generation and utilization.
Accordingly, the prior art is yet to be improved and developed.
SUMMERY OF THE UTILITY MODEL
In view of the not enough of above-mentioned prior art, the utility model aims at providing well low temperature geothermol power ORC magnetic suspension composite step power generation system aims at solving the current problem that low temperature geothermol power generating efficiency is low in utilizing.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted as follows:
middle and low temperature geothermol power ORC magnetic suspension compound step power generation system, wherein, include:
the ORC generator set comprises a first-stage ORC generator set and a second-stage ORC generator set;
the first-stage ORC generator set comprises a first-stage evaporator used for evaporating a first working medium, a first-stage generator connected with the first-stage evaporator, a second-stage evaporator connected with the first-stage generator and used for evaporating a second working medium, a first condenser connected with the second-stage evaporator, and a first working medium pump respectively connected with the first condenser and the first-stage evaporator;
the two-stage ORC generator set comprises the two-stage evaporator, a two-stage generator connected with the two-stage evaporator, a second condenser connected with the two-stage generator, and a second working medium pump respectively connected with the second condenser and the two-stage evaporator;
the absorption refrigeration device comprises a generator for concentrating a third working medium, a third condenser, a first throttle valve, a second throttle valve, a first condenser, a second condenser, a solution pump, a liquid return pump and an absorber;
the first outlet of the generator is connected with the first inlet of the third condenser, and the first outlet of the third condenser is respectively connected with the first condenser and the second condenser through a first throttling valve and a second throttling valve;
the second outlet of the first condenser is connected with the first inlet of the absorber; the second condenser first outlet is connected with the absorber second inlet;
the absorber working medium outlet is connected with the generator inlet, and the second generator outlet is connected with the third absorber inlet.
The medium-low temperature terrestrial heat ORC magnetic suspension composite step power generation system is characterized in that the first-stage ORC generator set further comprises a first cooling mechanism respectively connected with the first-stage generator and the second-stage evaporator.
The medium-low temperature geothermal ORC magnetic suspension composite step power generation system is characterized in that the two-stage ORC generator set further comprises a second cooling mechanism respectively connected with the two-stage generator and the second condenser.
The medium-low temperature geothermal ORC magnetic suspension composite step power generation system is characterized in that the first condenser and/or the second condenser comprise a condensing coil and a sprayer for cooling the condensing coil.
The medium-low temperature geothermal ORC magnetic suspension composite cascade power generation system is characterized in that throttle valves are arranged between the third condenser and the first condenser and between the third condenser and the second condenser.
The medium-low temperature geothermal ORC magnetic suspension composite cascade power generation system is characterized in that the third working medium is a binary working medium.
The medium-low temperature geothermal ORC magnetic suspension composite cascade power generation system is characterized in that the primary generator and the secondary generator are both magnetic suspension turbine generators.
The medium-low temperature geothermal ORC magnetic suspension composite cascade power generation system is characterized in that the boiling point of the first working medium is higher than that of the second working medium.
The medium-low temperature geothermal ORC magnetic suspension composite cascade power generation system is characterized in that the first cooling mechanism comprises a first secondary turbine and an impeller connected with the first secondary turbine.
The medium-low temperature geothermal ORC magnetic suspension composite step power generation method is characterized in that the second cooling mechanism comprises a second two-stage turbine and an impeller connected with the second two-stage turbine.
Has the advantages that: the utility model provides a compound step power generation system of well low temperature geothermol power ORC magnetic suspension through combining the utilization of residual pressure step, working medium step utilization and the utilization of geothermal heat source step, these three duty cycle. The heat utilization efficiency is effectively improved, and the geothermal power generation efficiency and the total power generation amount are improved.
Drawings
Fig. 1 is a block diagram of a first medium-low temperature geothermal ORC magnetic levitation composite step power generation system provided by an embodiment of the present invention.
Fig. 2 is a block diagram of a second medium-low temperature geothermal ORC magnetic levitation composite step power generation system provided by an embodiment of the present invention.
Fig. 3 is a block diagram of a third medium-low temperature geothermal ORC magnetic levitation composite step power generation system provided by an embodiment of the present invention.
Fig. 4 is a block diagram of a fourth medium-low temperature geothermal ORC magnetic levitation composite step power generation system provided by an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the utility model discloses a compound step power generation system of well low temperature geothermol power ORC magnetic suspension, it is including ORC generating set and the absorption refrigerating plant who is used for the electricity generation, ORC generating set includes two sets ofly one-level ORC generating set and second grade ORC generating set promptly, wherein one-level ORC generating set include one-level evaporimeter 10, with one-level generator 101 that one-level evaporimeter 10 is connected, with second grade evaporimeter 20 that one-level generator 101 is connected, one-level generator 101 is the magnetic suspension turbogenerator. And a first condenser 102 connected to the secondary evaporator 20 and the primary evaporator 10, respectively.
Specifically, the power generation process of the primary ORC generator set relates to a primary organic Rankine cycle, namely, medium-low temperature geothermal water passes through a primary evaporator 10, so that a first working medium passing through the primary evaporator absorbs heat and is evaporated to form high-temperature high-pressure steam, the high-temperature high-pressure steam enters a primary magnetic suspension turbine generator 101 to expand and do work to drive a primary magnetic suspension generator to generate power, exhaust steam at an outlet of the primary magnetic suspension generator then enters a secondary evaporator 20 to be cooled and provide heat for the secondary organic Rankine cycle, the cooled first working medium continues to release heat through a first condenser 102 to further reduce the condensation temperature of the working medium, and the cooled first working medium returns to the primary evaporator 10 through a first working medium.
The two-stage ORC generator set comprises a two-stage evaporator 20 for evaporating a second working medium, a two-stage generator 201 connected with the two-stage evaporator 20, a second condenser 202 connected with the two-stage generator 201, and a second working medium pump 205 respectively connected with the second condenser 202 and the two-stage evaporator 20; the secondary generator 201 is a magnetic suspension turbine generator.
Specifically, in the secondary organic rankine cycle, a second organic working medium absorbs heat energy in the exhaust steam discharged from the outlet of the primary magnetic suspension generator 101 in the secondary evaporator 20 and evaporates into second organic working medium steam, then the second organic working medium steam with higher temperature and pressure enters the secondary magnetic suspension generator 201 to expand and do work to drive the secondary magnetic suspension generator to generate electricity, the exhaust steam at the outlet of the secondary magnetic suspension generator 201 enters the second condenser 202 to be condensed, and finally, the condensed liquid second organic working medium returns to the secondary evaporator 20 through the second working medium pump 205. By additionally arranging the two-stage ORC generator set, steam generated in the one-stage ORC generator set is reused, and the utilization efficiency of heat is improved.
The absorption refrigeration device includes: a generator 30 for the concentration of a third working fluid, a third condenser 301, a first throttle valve 303, a second throttle valve 304, a first condenser 102, a second condenser 202 and an absorber 302; the generator 30 contains a third working medium, which is a binary mixed working medium.
A first outlet of the generator 30 is connected with a first inlet of the third condenser 301, and a first outlet of the third condenser 301 is connected with the first condenser 102 and the second condenser 202 through a first throttle valve 303 and a second throttle valve 304 respectively;
the second outlet of the first condenser 102 is connected with the first inlet of the absorber 302; a second outlet of the second condenser 202 is connected with a second inlet of the absorber 302;
the working medium outlet of the absorber 302 is connected with the inlet of the generator 30, and the second outlet of the generator 30 is connected with the third inlet of the absorber 302.
It should be noted that the above-mentioned "first outlet", "first inlet", "second outlet", "second inlet", and "third inlet" are only for convenience of description, are not intended to be limiting, and have no special meaning.
Specifically, the absorption refrigeration device relates to absorption refrigeration cycle during operation, that is, the third working medium contains two components with different boiling points as a refrigeration solution, wherein the working medium with low boiling point absorbs heat of geothermal water with higher residual temperature discharged from the primary evaporator 10 in the generator 30, evaporates, and is liquefied by absorbing heat in the third condenser by natural cooling water, the liquefied working medium (low boiling point) flows out of the third condenser through the first outlet, is shunted and depressurized by the first throttle valve 303 and the second throttle valve 304, and then enters the first condenser 102 and the second condenser 202 respectively, the liquid working medium is atomized under the driving of the first spray pump 103 and the second spray pump 203 and then is sprayed to the first condenser pipe 104 arranged in the first condenser 102 and the second condenser pipe 204 arranged in the second condenser 202 respectively for continuous evaporation refrigeration, thereby respectively reducing the condensation temperature of the first working medium and the second working medium, the steam at the outlets of the first condenser and the second condenser enters the generator 302 through the first inlet and the second inlet of the absorber, the residual concentrated solution of the high-concentration third working medium in the generator 30 enters the absorber 302 through the third inlet, the steam is absorbed by the high-concentration solution, and the diluted solution returns to the generator 30 through the liquid return pump 305. Wherein, the concentrated solution of the high-concentration third working medium is pumped into the absorber through the solution pump 306. The cold energy obtained by adsorption refrigeration is used for further reducing the working medium temperature of the ORC generator set, and the comprehensive utilization rate of the medium-low temperature geothermal heat is improved.
Referring to fig. 2, in some embodiments, the primary ORC generator set further includes a first cooling mechanism coupled to the primary generator and the secondary evaporator, respectively. The first cooling mechanism comprises a first secondary turbine and an impeller connected with the first secondary turbine.
Specifically, geothermal water passes through a first-stage evaporator 10, so that a first working medium passing through the first-stage evaporator 10 absorbs heat and is evaporated to form high-temperature and high-pressure steam, the high-temperature and high-pressure steam enters a first-stage magnetic suspension turbine generator 101, the first-stage magnetic suspension turbine generator 101 is provided with two stages of turbines, the gaseous working medium works in the first-stage turbine, the first-stage magnetic suspension turbine generator is driven to generate electricity through the coupler, the gaseous working medium after power generation enters the first second-stage turbine to expand and work, the impeller is driven to rotate through the coupler, surrounding air is forced to flow in an accelerated mode, heat exchange of a condensation pipe in the first condenser 20 is strengthened, exhaust steam at the outlet of the first-stage magnetic suspension generator then enters the second-stage evaporator 20 to exchange heat and cool, heat is provided for the second-stage organic Rankine cycle, the cooled first-stage working medium continuously releases heat through the first condenser 102, the condensation temperature of the working medium is further reduced, and finally the cooled first-stage working medium returns.
Referring to fig. 3, in some embodiments, the two-stage ORC generator set further includes a second cooling mechanism coupled to the two-stage generator and the second condenser, respectively. The second cooling mechanism comprises a second secondary turbine and an impeller connected with the second secondary turbine.
Specifically, the second organic working medium absorbs heat energy in the exhaust steam discharged from the outlet of the first-stage magnetic suspension generator 101 in the second-stage evaporator 20 and evaporates into second organic working medium steam, and then the second organic working medium steam with higher temperature and pressure enters the second-stage magnetic suspension generator 201, the second-stage magnetic suspension turbine generator 201 is provided with two stages of turbines, the gaseous working medium works in the first-stage turbine, the second-stage magnetic suspension turbine generator is driven by the coupler to generate power, the generated gaseous working medium enters the second-stage turbine to expand and work, the impeller is driven by the coupler to rotate, surrounding air is forced to flow at an accelerated speed, heat exchange of a condensation pipe in the second condenser 202 is enhanced, exhaust steam at the outlet of the second-stage magnetic suspension generator 201 enters the second condenser 202 to be condensed, and finally, the condensed liquid second organic working medium returns to the second-stage evaporator 20 through the second working medium pump 205. By additionally arranging the two-stage ORC generator set, steam generated in the one-stage ORC generator set is reused, and the utilization efficiency of heat is improved.
Further, a first cooling mechanism and a second cooling mechanism may be disposed in the first stage ORC genset and the second stage ORC genset, respectively, at the same time. Namely, the medium-low temperature geothermal ORC magnetic levitation composite cascade power generation system can simultaneously comprise the first temperature reduction mechanism and the second temperature reduction mechanism, as shown in fig. 4.
It should be noted that the three cycles are not operated in isolation, but coupled and interconnected. The secondary evaporator is not only a condenser of the primary organic Rankine cycle, but also an evaporator of the secondary organic Rankine cycle, and heat which is originally transmitted to the atmospheric environment and has exhaust steam with residual temperature in the traditional generator system is continuously used for power generation through the secondary evaporator, so that the utilization rate of medium-low temperature geothermal energy is improved, the power generation efficiency is further improved, and the power generation capacity is increased. The first condenser and the second condenser are respectively arranged in the first condenser and the second condenser in the absorption refrigeration cycle, so that the connection between the absorption refrigeration and the power generation cycle is realized, and the cold energy generated by the absorption refrigeration cycle can be used for reducing the condensation temperature and the condensation pressure of the organic Rankine cycle, so that the pressure difference at the inlet and the outlet of the magnetic suspension generator is increased, the power generation power of the generator is improved, the generated energy is increased, and the utilization efficiency of medium-low temperature geothermal energy is improved.
To sum up, the utility model provides a compound step power generation system of well low temperature geothermol power ORC magnetic suspension, it includes ORC generating set to and absorption refrigeration device, ORC generating set includes one-level ORC generating set and second grade ORC generating set. The utility model discloses well low temperature geothermal water passes through one-level organic rankine cycle's evaporimeter and the refrigerated generator of absorption formula in proper order. The absorption refrigeration generator utilizes the heat obtained from waste-heat geothermal water discharged from the evaporator of the primary organic Rankine cycle for absorption refrigeration to improve the power generation cycle efficiency, and realizes gradient utilization of geothermal energy.
The turbine generator of the present invention is not a conventional turbine generator, but a magnetic suspension turbine generator, herein referred to as a magnetic suspension generator. The magnetic suspension generator adopts a magnetic suspension bearing, and the rotor and the bearing are not contacted with each other, so that the mechanical friction is small, the rotating speed of the generator is high, and the generating efficiency is improved. The steam turbine part of the magnetic suspension generator in the utility model is provided with two stages of turbines, and the gaseous working medium respectively expands for one time in the two stages of turbines to do work, wherein, the first stage turbine drives the generator to generate electricity through the coupling; the second-stage turbine drives the impeller to rotate through the coupler, air flow on the surface of the condensing pipe is accelerated, heat exchange capacity of the condensing pipe is enhanced, and condensing temperature and condensing pressure are reduced, so that pressure difference at the inlet and the outlet of the magnetic suspension generator is increased, power generation efficiency of the magnetic suspension generator is improved, and power generation capacity and utilization efficiency of medium-low temperature geothermal energy are improved.
It is to be understood that the invention is not limited to the above-described embodiments, and that modifications and variations may be made by those skilled in the art in light of the above teachings, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (9)
1. Middle and low temperature geothermol power ORC magnetic suspension compound step power generation system, its characterized in that includes:
the ORC generator set comprises a first-stage ORC generator set and a second-stage ORC generator set;
the first-stage ORC generator set comprises a first-stage evaporator used for evaporating a first working medium, a first-stage generator connected with the first-stage evaporator, a second-stage evaporator connected with the first-stage generator and used for evaporating a second working medium, a first condenser connected with the second-stage evaporator, and a first working medium pump respectively connected with the first condenser and the first-stage evaporator;
the two-stage ORC generator set comprises a two-stage evaporator used for evaporating a second working medium, a two-stage generator connected with the two-stage evaporator, a second condenser connected with the two-stage generator, and a second working medium pump respectively connected with the second condenser and the two-stage evaporator;
the absorption refrigeration device comprises a generator for concentrating a third working medium, a third condenser, a first throttle valve, a second throttle valve, a first condenser, a second condenser, a solution pump, a liquid return pump and an absorber;
the first outlet of the generator is connected with the first inlet of the third condenser, and the first outlet of the third condenser is respectively connected with the first condenser and the second condenser through the first throttling valve and the second throttling valve;
the second outlet of the first condenser is connected with the first inlet of the absorber; the second working medium outlet of the second condenser is connected with the second inlet of the absorber;
the absorber working medium outlet is connected with the generator inlet, and the second generator outlet is connected with the third absorber inlet.
2. The medium and low temperature geothermal ORC magnetic levitation compound step power generation system according to claim 1, wherein the primary ORC generator set further comprises a first cooling mechanism connected to the primary generator and the secondary evaporator, respectively.
3. The medium and low temperature geothermal ORC magnetic levitation compound step power generation system according to claim 1 or 2, wherein the secondary ORC generator set further comprises a second cooling mechanism connected to the secondary generator and the second condenser, respectively.
4. The medium and low temperature geothermal ORC magnetic levitation compound step power generation system according to claim 1, wherein the first condenser and/or the second condenser comprises a condensing coil and a sprinkler for cooling the condensing coil.
5. The medium and low temperature geothermal ORC magnetic levitation compound step power generation system according to claim 1, wherein a throttle valve is disposed between the third condenser and each of the first condenser and the second condenser.
6. The medium and low temperature geothermal ORC magnetic levitation composite cascade power generation system of claim 1, wherein the primary generator and the secondary generator are both magnetic levitation turbine generators.
7. The medium and low temperature geothermal ORC magnetic levitation composite cascade power generation system of claim 1, wherein the boiling point of the first working fluid is higher than the boiling point of the second working fluid.
8. The medium and low temperature geothermal ORC magnetic levitation compound step power generation system according to claim 2, wherein the first temperature reduction mechanism comprises a first secondary turbine, an impeller coupled to the first secondary turbine.
9. The medium and low temperature geothermal ORC magnetic levitation compound step power generation system according to claim 3, wherein the second temperature reduction mechanism comprises a second two-stage turbine, an impeller coupled to the second two-stage turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920813626.2U CN210033736U (en) | 2019-05-31 | 2019-05-31 | Medium-low temperature terrestrial heat ORC magnetic suspension composite step power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920813626.2U CN210033736U (en) | 2019-05-31 | 2019-05-31 | Medium-low temperature terrestrial heat ORC magnetic suspension composite step power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210033736U true CN210033736U (en) | 2020-02-07 |
Family
ID=69346059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920813626.2U Active CN210033736U (en) | 2019-05-31 | 2019-05-31 | Medium-low temperature terrestrial heat ORC magnetic suspension composite step power generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210033736U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131115A (en) * | 2019-05-31 | 2019-08-16 | 深圳大学 | The compound cascaded power generating system of middle low temperature underground heat ORC magnetic suspension |
-
2019
- 2019-05-31 CN CN201920813626.2U patent/CN210033736U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131115A (en) * | 2019-05-31 | 2019-08-16 | 深圳大学 | The compound cascaded power generating system of middle low temperature underground heat ORC magnetic suspension |
| CN110131115B (en) * | 2019-05-31 | 2024-06-18 | 深圳大学 | Medium-low temperature geothermal ORC magnetic suspension composite step power generation system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110131115B (en) | Medium-low temperature geothermal ORC magnetic suspension composite step power generation system | |
| WO2020239069A1 (en) | Orc magnetic levitation power generation system utilizing medium and low temperature geothermal working media in gradient mode | |
| WO2020239067A1 (en) | Orc magnetic suspension power generation system using medium-low temperature geothermal excess-pressure gradient | |
| US8572973B2 (en) | Apparatus and method for generating power and refrigeration from low-grade heat | |
| JP3230516U (en) | Supercritical carbon dioxide Brayton cycle power generation system for waste heat recovery | |
| CN102563987A (en) | Vapor-compression refrigerating plant driven by organic Rankine cycle and method | |
| CN110068170B (en) | Oil field waste heat utilization system based on absorption refrigeration | |
| CN210106078U (en) | ORC magnetic suspension power generation system for cascade utilization of medium-low temperature geothermal excess pressure | |
| CN210033736U (en) | Medium-low temperature terrestrial heat ORC magnetic suspension composite step power generation system | |
| CN112431644B (en) | Cooling and heating combined supply system by adjusting flow distribution ratio of working medium | |
| CN111735237B (en) | Well low temperature heat utilization merit cold joint system | |
| CN111306835B (en) | Ammonia water working medium combined cooling heating and power system utilizing medium-low temperature heat source and working method thereof | |
| CN111271898B (en) | Combined cooling heating and power system based on geothermal energy and working method thereof | |
| CN210033553U (en) | ORC magnetic suspension power generation system for cascade utilization of medium-low temperature geothermal working medium | |
| CN210033546U (en) | ORC magnetic suspension power generation system for cascade utilization of medium-low temperature terrestrial heat | |
| CN216522519U (en) | Device for utilizing waste heat of direct air cooling unit | |
| CN216347193U (en) | Device for improving running back pressure of air cooling unit | |
| CN112880230B (en) | Power generation and refrigeration combined system | |
| CN110159368B (en) | ORC magnetic suspension power generation system and method utilizing geothermal energy at medium and low temperatures in gradient mode | |
| CN108151358A (en) | Cool and thermal power carbon sequestration alliance multipotency stream Regional Energy station based on regenerative resource driving | |
| CN112459857A (en) | Double-pressure organic Rankine cycle power generation system | |
| CN112412560A (en) | Kalina circulation system based on single screw expander | |
| CN102692092B (en) | Jet type refrigeration system with expander | |
| TWI399512B (en) | A low-grade heat-utilizing device and approach for producing power and refrigeration | |
| CN115164447B (en) | ORC-based combined cooling system driven by renewable energy sources |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |