CN107588575B - Cold and hot electricity multi-combined supply system based on multistage solar heat collector - Google Patents
Cold and hot electricity multi-combined supply system based on multistage solar heat collector Download PDFInfo
- Publication number
- CN107588575B CN107588575B CN201710830211.1A CN201710830211A CN107588575B CN 107588575 B CN107588575 B CN 107588575B CN 201710830211 A CN201710830211 A CN 201710830211A CN 107588575 B CN107588575 B CN 107588575B
- Authority
- CN
- China
- Prior art keywords
- subsystem
- heat
- evaporator
- condenser
- working medium
- 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
- 230000005611 electricity Effects 0.000 title claims description 6
- 238000010248 power generation Methods 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 238000005057 refrigeration Methods 0.000 claims abstract description 15
- 230000001105 regulatory effect Effects 0.000 claims abstract description 15
- 238000010521 absorption reaction Methods 0.000 claims abstract description 12
- 239000006096 absorbing agent Substances 0.000 claims description 14
- 239000003507 refrigerant Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 239000011555 saturated liquid Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 18
- 238000001704 evaporation Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002803 fossil fuel Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000013526 supercooled liquid Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000013486 operation strategy Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
-
- 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
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention discloses a cold-heat-electricity multi-supply system based on a multi-stage solar heat collector, which comprises a two-stage solar trough type heat collection subsystem, an organic Rankine cycle power generation subsystem, a heat supply subsystem and an absorption refrigeration subsystem. The two-stage solar trough type heat collection subsystem is connected with the organic Rankine cycle power generation subsystem through evaporators respectively, and the heat supply subsystem is connected with the organic Rankine cycle power generation subsystem through a first condenser. The absorption refrigeration subsystem is connected with the organic Rankine cycle power generation subsystem at the inlet of the first regulating valve and the outlet of the second condenser through a pipeline containing the second regulating valve. The invention uses a two-stage solar trough type heat collection system to realize the improvement of the efficiency of the solar heat collector,The damage is reduced; meanwhile, the integration of the heat supply and cooling subsystem and the power generation system is realized through the condenser, so that the comprehensive utilization rate of solar energy is improved; through the second liquid storage tank, instability of solar energy utilization is overcome.
Description
Technical Field
The invention relates to a cold-heat-electricity multi-supply system utilizing a multi-stage solar heat collector, and belongs to the technical field of solar photo-heat utilization.
Background
The development of distributed energy systems is particularly important in the large context of global energy crisis and climate change problems.
Distributed energy systems generally refer to small energy systems powered by clean fossil fuels such as renewable energy (biomass) or natural gas, isolated or associated with a distribution grid alone. The multi-combined supply system is the most commonly used technology in a distributed energy system, can use waste heat for refrigeration and heat supply, realizes gradient utilization of energy, improves the energy utilization rate of the system, and promotes energy conservation and emission reduction.
However, at present, the traditional distributed multi-supply system using an internal combustion engine, a Stirling generator and the like as prime movers still has great dependence on fossil fuels, and pollutants and greenhouse gases can be generated in the operation process; meanwhile, although part of renewable energy sources including solar energy and the like are integrated, the position is just auxiliary driving energy sources, which makes the distributed multi-combined supply system redundant in configuration and low in comprehensive utilization rate of energy sources,the damage is large.
Disclosure of Invention
Aiming at a distributed multi-combined supply system taking solar energy as driving energy and Organic Rankine Cycle (ORC) as a prime motor, the invention provides a multi-combined supply system for cold, heat and electricity based on a multi-stage solar heat collector, which realizes the integration of cold, heat and electricity of the system, improves the comprehensive utilization rate of solar energy and simultaneously improves the system through reasonable system configuration and component selectionEfficiency, decrease->Damage.
In order to solve the technical problems, the cold and heat electricity multi-supply system based on the multi-stage solar heat collector comprises a solar trough heat collection subsystem, an organic Rankine cycle power generation subsystem, a heat supply subsystem and an absorption refrigeration subsystem, wherein the solar trough heat collection subsystem consists of a first solar trough heat collection subsystem and a second solar trough heat collection subsystem; the first solar trough type heat collection subsystem comprises a first heat conduction oil pump, a first trough type heat collector and a first evaporator which are arranged on a first heat conduction oil circulation pipeline; the second solar trough type heat collection subsystem comprises a second heat conduction oil pump, a second trough type heat collector and a second evaporator which are arranged on a second heat conduction oil circulation pipeline; the organic Rankine cycle power generation subsystem comprises a first liquid storage tank, an expander, a first condenser, a first regulating valve, a second condenser, a second liquid storage tank and a first working medium pump which are arranged on an organic Rankine working medium circulation pipeline; a connecting pipeline is arranged between the bottom of the first liquid storage tank and the outlet of the second evaporator, and a second working medium pump is arranged on the connecting pipeline; the expander drives the generator to operate; the solar trough type heat collection subsystem is connected with the organic Rankine cycle power generation subsystem through a shell side of the first evaporator and a shell side of the second evaporator respectively; the heat supply subsystem comprises a fan coil and a third working medium pump which are arranged on a water circulation pipeline, and the organic Rankine cycle power generation subsystem is connected with the heat supply subsystem through the first condenser; the absorption refrigeration subsystem comprises a third condenser, a first throttle valve, a third evaporator, an absorber and a generator which are arranged on a refrigerant pipeline, and a solution pump is connected between the outlet of the absorber and the dilute solution inlet of the generator; a second throttle valve is arranged on a connecting pipeline between the outlet of the generator and the absorber; an upper outlet of the generator is connected to an inlet of the third condenser; the outlet of the first condenser is connected to the heat source side inlet of the generator, a second regulating valve is arranged on the connecting pipeline of the generator and the first condenser, and the heat source side outlet of the generator is connected to the outlet of the second condenser.
In the invention, the first evaporator, the second evaporator and the third evaporator are shell-and-tube heat exchangers or plate heat exchangers.
Compared with the prior art, the invention has the beneficial effects that:
the heat collector can reduce the temperature difference between the heat exchange fluid and the supercooled liquid working medium by using the two-stage heat collector under the condition of the same area as the single-stage heat collector, thereby improving the overall heat collection efficiency and reducing the heat collection efficiencyLoss, improvement of the system->Efficiency (as in fig. 2); the working medium can be ensured to enter the expander in a saturated gaseous state at the evaporating temperature, and the influence of the dynamic characteristic of solar energy is reduced
Drawings
FIG. 1 is a schematic diagram of a multi-stage solar collector-based combined cooling, heating and power system according to the present invention;
fig. 2 is a temperature-entropy diagram of an organic rankine cycle power generation subsystem fluid in the system of the present invention.
In the figure: 1-first tank collector, 2-first heat conduction oil pump, 3-first evaporator, 4-second tank collector, 5-second heat conduction oil pump, 6-second evaporator, 7-first liquid storage tank, 8-second working medium pump, 9-expander, 10-generator, 11-first condenser, 12-first regulating valve, 13-second condenser, 14-second liquid storage tank, 15-first working medium pump, 16-fan coil, 17-third working medium pump, 18-second regulating valve, 19-generator, 20-third condenser, 21-first throttle valve, 22-third evaporator, 23-absorber, 24-solution pump, 25-second throttle valve.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and the specific embodiments, which are only illustrative of the present invention and are not intended to limit the present invention.
As shown in FIG. 1, the cold-heat-electricity multi-supply system based on the multi-stage solar heat collector provided by the invention comprises a solar trough type heat collection subsystem, an organic Rankine cycle power generation subsystem, a heat supply subsystem and an absorption refrigeration subsystem.
The solar trough type heat collection subsystem consists of a first solar trough type heat collection subsystem and a second solar trough type heat collection subsystem; the first solar trough type heat collection subsystem comprises a first heat conduction oil pump 2, a first trough type heat collector 1 and a first evaporator 3 which are arranged on a first heat conduction oil circulation pipeline; the second solar trough heat collection subsystem comprises a second heat conduction oil pump 5, a second trough heat collector 4 and a second evaporator 6 which are arranged on a second heat conduction oil circulation pipeline.
The organic Rankine cycle power generation subsystem comprises a first liquid storage tank 7, an expander 9, a first condenser 11, a first regulating valve 12, a second condenser 13, a second liquid storage tank 14 and a first working medium pump 15 which are arranged on an organic Rankine working medium circulation pipeline; a connecting pipeline is arranged between the bottom of the first liquid storage tank 7 and the outlet of the second evaporator 6, a second working medium pump 8 is arranged on the connecting pipeline, and the working medium liquid in the first liquid storage tank 7 is mixed with the working medium liquid at the outlet of the second evaporator 6 through the second working medium pump 8, and corresponds to a state point b in fig. 1. The expander 9 can also be coupled to drive the generator 10. The solar trough type heat collection subsystem is connected with the organic Rankine cycle power generation subsystem through a shell side of the first evaporator 3 and a shell side of the second evaporator 6 respectively;
the heat supply subsystem comprises a fan coil 16 and a third working medium pump 17 which are arranged on a water circulation pipeline, and the organic Rankine cycle power generation subsystem is connected with the heat supply subsystem through the first condenser 11.
The absorption refrigeration subsystem comprises a third condenser 20, a first throttle valve 21, a third evaporator 22, an absorber 23 and a generator 19 which are arranged on a refrigerant pipeline, wherein a solution pump 24 is connected between the outlet of the absorber 23 and the dilute solution inlet of the generator 19; a second throttle valve 25 is arranged on the connecting pipeline between the outlet of the generator 19 and the absorber 23; the refrigerant (water) outlet of the generator 19 is connected to the inlet of the third condenser 20; the working medium outlet of the first condenser 11 is connected to the heat source side inlet of the generator 19, a second regulating valve 18 is arranged on the connection pipeline between the generator 19 and the first condenser 11, and the heat source side outlet of the generator 19 is connected to the working medium outlet of the second condenser 13.
In the present invention, the first evaporator 3, the second evaporator 6 and the third evaporator 22 are shell-and-tube heat exchangers or plate heat exchangers, preferably shell-and-tube heat exchangers.
In the invention, a second evaporator 6 is arranged between the second solar trough type heat collection subsystem and the organic Rankine cycle power generation subsystem, a heat conduction oil circulation pipeline between the outlet of the second trough type heat collector 4 of the second solar trough type heat collection subsystem and the second heat conduction oil pump 5 can be communicated with a tube side of the second evaporator 6, namely a heat release medium channel, and the organic Rankine cycle power generation subsystem is communicated with a shell side of the second evaporator 6, namely a preheating medium channel through a working medium circulation pipeline between the shell side inlet of the first evaporator 3 and the outlet (corresponding to a state point a in fig. 2) of the first working medium pump 15, so that heat exchange between the second solar trough type heat collection subsystem and the organic Rankine cycle power generation subsystem is realized. Under the prior art, the configuration of only a single-stage heat collector, namely the temperature curve of the single-stage solar trough heat collecting subsystem in fig. 2, can increase the temperature difference between heat exchange fluid and supercooled liquid working medium, thereby increasingDamage. In the invention, the second evaporator 6 is arranged, so that the temperature of the working medium solution after the first-stage preheating of the second evaporator 6 in the working medium circulating pipeline is more approximate to the temperature of the working medium solution flowing out of the bottom of the first liquid storage tank 7, and the working medium solution corresponds to the state point b in the figure 2 at the moment, thereby reducing ∈>Damage. In addition, the lower average temperature of the heat conduction oil in the second trough collector 4 makes the temperature of the working medium solution in the working medium circulation pipeline and the temperature of the heat conduction oil in the second evaporator 6 and the first evaporator 3 more approximate (such as the temperature curve between the temperature curve of the second solar trough collector subsystem and the state points a and b in fig. 2),and further, the first solar trough type heat collecting subsystem and the second solar trough type heat collecting subsystem obtain higher total heat collecting efficiency.
In the invention, a first evaporator 3 is arranged between the first solar trough type heat collection subsystem and the organic Rankine cycle power generation subsystem, a heat conduction oil circulation pipeline between a trough type heat collection outlet of the first solar trough type heat collection subsystem and the first heat conduction oil pump 2 can be communicated with a tube side of the first evaporator 3, namely a heat release medium channel, and a working medium circulation pipeline between a shell side outlet of the second evaporator 6 and an inlet of the first liquid storage tank 7 can be communicated with a shell side of the first evaporator 3, namely a preheating medium channel, so that heat exchange between the first solar trough type heat collection subsystem and the organic Rankine cycle power generation subsystem is realized.
In the present invention, a first liquid storage tank 7 is disposed between the shell side outlet (corresponding to the state point c in fig. 2) of the first evaporator 3 and the inlet (corresponding to the state point d in fig. 2) of the expander 9, wherein the working medium is located in the two-phase region. The saturated liquid is mixed with the working medium solution at the shell side outlet of the second evaporator 6 through a pipeline of which the bottom is provided with a second working medium pump 8; saturated gas enters the expander 9 through a working medium circulation pipeline. The primary function of the first reservoir 7 is:
(1) Reducing the quality fluctuation of working medium steam at the inlet of the expander 9 (corresponding to a state point d in fig. 2) caused by the solar dynamic characteristic;
(2) Ensuring constant flow velocity of working medium in a working medium circulation pipeline, so that components such as an expander 9, a first condenser 11, a second condenser 13, a first working medium pump 15, a second evaporator 6, a first evaporator 3 and the like in the organic Rankine cycle power generation system run under a design working condition;
(3) Ensuring the temperature stability of the working medium at the outlet (corresponding to the state point e in fig. 2) of the expander 9;
(4) The real-time operation strategy of the system is simplified.
In the invention, a first condenser 11 is arranged between the organic Rankine cycle power generation subsystem and a heat supply subsystem, a working medium circulation pipeline between an outlet (corresponding to a state point e in fig. 2) of an expander 9 of the organic Rankine cycle power generation subsystem and an inlet of a first regulating valve 12 can be communicated with a heat release medium channel of the first condenser 11, and a heat conduction oil circulation pipeline between a fan coil inlet of the heat supply subsystem and an outlet of a third working medium pump 17 can be communicated with a preheating medium channel of the first condenser 11, so that heat exchange between the organic Rankine cycle power generation subsystem and the heat supply subsystem is realized, and a heat supply function is realized through a fan coil.
In the invention, a pipeline containing a second regulating valve 18 is arranged between the organic Rankine cycle power generation subsystem and the absorption refrigeration subsystem, the heat of working medium in the working medium circulation pipeline of the organic Rankine cycle power generation subsystem can be used as a working heat source of the absorption refrigeration subsystem, and a solution with a certain concentration, which is conveyed from an absorber 23 by a solution pump 24, is heated in a generator 19, so that most of low-boiling-point refrigerant in the solution is evaporated. The evaporated refrigerant vapor enters the third condenser 20 through a refrigerant pipeline, is condensed into refrigerant liquid by a cooling medium, is reduced to the evaporating pressure by the first throttle valve 21, then enters the third evaporator 22, absorbs the heat in the cooled system, achieves the refrigeration function, and is converted into the refrigerant vapor under the evaporating pressure. The solution remaining in the generator 19 after the generation process, which contains a high boiling point absorbent and a small amount of non-evaporated refrigerant, is reduced to the evaporation pressure via the second throttle valve 25 into the absorber 23, mixed with the low pressure refrigerant vapor coming out of the third evaporator 22, and absorbed the low pressure refrigerant vapor. Since the absorption process is exothermic, the mixed solution is cooled with cooling water in the absorber 23. The solution recovered to the original concentration in the absorber 23 is pressurized by the solution pump 24 and then fed to the generator 19 for continuous circulation.
In addition, a first regulating pump 12 and a first condenser 13 are sequentially arranged between the outlet of the second condenser 11 and the inlet of the second liquid storage tank 14 of the organic Rankine cycle power generation subsystem along a working medium circulation pipeline. The first condenser 13 is arranged so that the working medium which still has a part of gaseous components after condensation by the second condenser 11 is completely condensed and enters the second liquid storage tank 14, thereby preventing cavitation of the second working medium pump 15.
The multi-stage solar heat collector-based cooling, heating and power multi-supply system can realize the following two different operation modes according to different requirements:
operation mode one: combined cooling, heating and power supply.
In the working mode, the solar trough type heat collection subsystem realizes the functions of refrigeration, heat supply and power generation. This mode is achieved, and the first regulator valve 12 is closed. The solar trough type heat collection subsystem normally operates to drive the organic Rankine cycle power generation subsystem to operate, and the expander 9 drives the coaxial power generator 10 to generate power; meanwhile, the heat supply subsystem starts to operate under the heat exchange effect of the first condenser 11, so that heat supply is realized; in addition, the working medium at the outlet of the first condenser 11 exchanges heat with the solution in the generator 19 of the absorption refrigeration subsystem through the second regulating valve 18, so that refrigeration is realized, and meanwhile, the working medium is completely liquefied when reaching the inlet of the first working medium pump 15.
And a second working mode: and (5) cogeneration.
In the working mode, the solar trough type heat collection subsystem realizes the functions of heat supply and power generation. This mode is achieved, and the second regulator valve 18 is closed. The solar trough type heat collection subsystem normally operates to drive the organic Rankine cycle power generation subsystem to operate, and the expander 9 drives the coaxial power generator 10 to generate power; meanwhile, the heat supply subsystem starts to operate under the heat exchange effect of the first condenser 11, so that heat supply is realized; in addition, the working medium at the outlet of the first condenser 11 enters the second condenser 13 through the first regulating valve 12 to be condensed, and the establishment of the second liquid storage tank 14 ensures that the working medium is completely liquefied when reaching the inlet of the first working medium pump 15.
Although the invention has been described above with reference to the accompanying drawings, the invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many modifications may be made by those of ordinary skill in the art without departing from the spirit of the invention, which fall within the protection of the invention.
Claims (2)
1. A cold, heat and electricity multi-combined supply system based on a multi-stage solar heat collector comprises a solar trough type heat collection subsystem, an organic Rankine cycle power generation subsystem, a heat supply subsystem and an absorption refrigeration subsystem, and is characterized in that:
the solar trough type heat collection subsystem consists of a first solar trough type heat collection subsystem and a second solar trough type heat collection subsystem; the first solar trough type heat collection subsystem comprises a first heat conduction oil pump (2), a first trough type heat collector (1) and a first evaporator (3) which are arranged on a first heat conduction oil circulation pipeline; the second solar trough type heat collection subsystem comprises a second heat conduction oil pump (5), a second trough type heat collector (4) and a second evaporator (6) which are arranged on a second heat conduction oil circulation pipeline;
the organic Rankine cycle power generation subsystem comprises a first liquid storage tank (7), an expander (9), a first condenser (11), a first regulating valve (12), a second condenser (13), a second liquid storage tank (14) and a first working medium pump (15) which are arranged on an organic Rankine working medium circulation pipeline; a connecting pipeline is arranged between the bottom of the first liquid storage tank (7) and the outlet of the second evaporator (6), and a second working medium pump (8) is arranged on the connecting pipeline; the expander (9) drives a generator to operate;
the solar trough type heat collection subsystem is connected with the organic Rankine cycle power generation subsystem through a shell side of the first evaporator (3) and a shell side of the second evaporator (6) respectively; the first liquid storage tank (7) is arranged between a shell side outlet of the first evaporator (3) and an inlet of the expander (9), and working media in the first liquid storage tank (7) are positioned in a two-phase region; the saturated liquid is mixed with the working medium solution at the shell side outlet of the second evaporator (6) through a pipeline of the second working medium pump (8) arranged at the bottom of the first liquid storage tank (7); saturated gas enters the expander (9) through a working medium circulation pipeline;
the heat supply subsystem comprises a fan coil (16) and a third working medium pump (17) which are arranged on a water circulation pipeline, and the organic Rankine cycle power generation subsystem is connected with the heat supply subsystem through the first condenser (11);
the absorption refrigeration subsystem comprises a third condenser (20), a first throttle valve (21), a third evaporator (22), an absorber (23) and a generator (19), which are arranged on a refrigerant pipeline, wherein a solution pump (24) is connected between an outlet of the absorber (23) and a dilute solution inlet of the generator (19);
a second throttle valve (25) is arranged on a connecting pipeline between the outlet of the generator (19) and the absorber (23); an upper outlet of the generator (19) is connected to an inlet of the third condenser (20);
the outlet of the first condenser (11) is connected to the heat source side inlet of the generator (19), a second regulating valve (18) is arranged on the connecting pipeline of the generator (19) and the first condenser (11),
the heat source side outlet of the generator (19) is connected to the outlet of the second condenser (13).
2. The multi-stage solar collector-based combined heat and power system according to claim 1, wherein the first evaporator (3), the second evaporator (6) and the third evaporator (22) are shell-and-tube heat exchangers or plate heat exchangers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710830211.1A CN107588575B (en) | 2017-09-14 | 2017-09-14 | Cold and hot electricity multi-combined supply system based on multistage solar heat collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710830211.1A CN107588575B (en) | 2017-09-14 | 2017-09-14 | Cold and hot electricity multi-combined supply system based on multistage solar heat collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107588575A CN107588575A (en) | 2018-01-16 |
| CN107588575B true CN107588575B (en) | 2023-12-05 |
Family
ID=61051909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710830211.1A Active CN107588575B (en) | 2017-09-14 | 2017-09-14 | Cold and hot electricity multi-combined supply system based on multistage solar heat collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107588575B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671839A (en) * | 2019-11-20 | 2020-01-10 | 云南大学 | Novel regenerative organic flash evaporation circulating waste heat recovery system and heat energy recovery method |
| CN114877616B (en) * | 2022-03-29 | 2024-05-14 | 哈尔滨工业大学 | Moon base combined cooling, heating and power supply system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968042A (en) * | 2010-10-19 | 2011-02-09 | 中山大学 | Multistage full-effect solar heat power generation method |
| CN102141320A (en) * | 2011-04-28 | 2011-08-03 | 上海交通大学 | Solar-driven two-stage air-cooled absorption air conditioner |
| WO2012065296A1 (en) * | 2010-11-15 | 2012-05-24 | 思安新能源股份有限公司 | Absorption cooling and power co-supply circulation system and absorption cooling and power co-supply method |
| CN104154677A (en) * | 2014-07-31 | 2014-11-19 | 昆明理工大学 | Biomass heat- and solar-energy multistage cooling, heating and power combined supply system |
| CN204141889U (en) * | 2014-09-29 | 2015-02-04 | 邵振华 | Organic Rankine-absorption-compression formula the refrigeration system of Driven by Solar Energy |
| CN106958963A (en) * | 2017-05-05 | 2017-07-18 | 天津城建大学 | Solar cold co-generation unit based on organic Rankine bottoming cycle and lithium bromide refrigerating |
| CN107100685A (en) * | 2017-04-26 | 2017-08-29 | 辽宁工程技术大学 | A kind of combined generating system based on organic Rankine bottoming cycle and absorption heat pump cycle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207180089U (en) * | 2017-09-14 | 2018-04-03 | 天津大学 | A kind of cool and thermal power multi-generation system based on multi-level solar heat collector |
-
2017
- 2017-09-14 CN CN201710830211.1A patent/CN107588575B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968042A (en) * | 2010-10-19 | 2011-02-09 | 中山大学 | Multistage full-effect solar heat power generation method |
| WO2012065296A1 (en) * | 2010-11-15 | 2012-05-24 | 思安新能源股份有限公司 | Absorption cooling and power co-supply circulation system and absorption cooling and power co-supply method |
| CN102141320A (en) * | 2011-04-28 | 2011-08-03 | 上海交通大学 | Solar-driven two-stage air-cooled absorption air conditioner |
| CN104154677A (en) * | 2014-07-31 | 2014-11-19 | 昆明理工大学 | Biomass heat- and solar-energy multistage cooling, heating and power combined supply system |
| CN204141889U (en) * | 2014-09-29 | 2015-02-04 | 邵振华 | Organic Rankine-absorption-compression formula the refrigeration system of Driven by Solar Energy |
| CN107100685A (en) * | 2017-04-26 | 2017-08-29 | 辽宁工程技术大学 | A kind of combined generating system based on organic Rankine bottoming cycle and absorption heat pump cycle |
| CN106958963A (en) * | 2017-05-05 | 2017-07-18 | 天津城建大学 | Solar cold co-generation unit based on organic Rankine bottoming cycle and lithium bromide refrigerating |
Non-Patent Citations (1)
| Title |
|---|
| 非共沸工质用于太阳能低温朗肯循环的理论研究;赵力;王晓东;张启;;太阳能学报(第06期);26-31 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107588575A (en) | 2018-01-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102563987A (en) | Vapor-compression refrigerating plant driven by organic Rankine cycle and method | |
| CN102094772B (en) | Solar energy-driven cogeneration device | |
| CN112985142A (en) | Heat energy conversion mechanical energy storage device based on carbon dioxide gas-liquid phase change | |
| CN113818934B (en) | Adjustable combined cooling and power system and process and operation method thereof | |
| CN107305072A (en) | A kind of combined power and cooling system of utilization low temperature exhaust heat and LNG cold energy | |
| CN112814860B (en) | Circulating complementary cogeneration system of tower type solar photo-thermal power generation refrigerator and operation method thereof | |
| JP2014025653A (en) | Refrigeration air conditioning method and apparatus | |
| CN102230702B (en) | Two-stage ejection refrigeration cycle system with economizer | |
| CN103471287A (en) | Renewable energy source complementary combined cooling heating and power system | |
| CN202133176U (en) | Two-stage injection refrigeration circulating system with economizer | |
| CN107588575B (en) | Cold and hot electricity multi-combined supply system based on multistage solar heat collector | |
| CN114322354B (en) | Absorption type circulating refrigeration system and process thereof | |
| KR101386179B1 (en) | District heating water supply system for increasing gas turbin output by using heat pump | |
| CN108800651B (en) | Thermal power air cooling condenser safety degree summer device based on day and night electric power peak regulation | |
| CN107200372B (en) | Seawater desalination system and method | |
| CN202501677U (en) | Steam compression refrigeration device driven by organic Rankine cycle | |
| CN203454466U (en) | Combined cooling-heating power cogeneration system capable of realizing complementation of renewable energy sources | |
| CN110486989B (en) | Biomass gasification stove combined cooling and power generation system | |
| CN211116438U (en) | Power generation and refrigeration combined cycle system based on ocean temperature difference energy | |
| CN112781271A (en) | Heat storage type solar combined cooling and heating system | |
| CN115111806B (en) | Combined heat and power system and method based on energy cascade utilization | |
| CN215002381U (en) | High-efficient absorption heat pump | |
| CN114278404B (en) | Energy storage-based high-wind-power-permeability regional wind power consumption and clean heating system | |
| CN107421157B (en) | Ammonia absorption type power and injection type refrigeration composite circulation system and method | |
| CN116292200A (en) | Photo-thermal, compressed air and organic Rankine cycle comprehensive energy system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |