CN114111061A - Groove type heat collection field boosting mixed oil injection adjusting system and oil temperature adjusting method - Google Patents
Groove type heat collection field boosting mixed oil injection adjusting system and oil temperature adjusting method Download PDFInfo
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- CN114111061A CN114111061A CN202111414155.6A CN202111414155A CN114111061A CN 114111061 A CN114111061 A CN 114111061A CN 202111414155 A CN202111414155 A CN 202111414155A CN 114111061 A CN114111061 A CN 114111061A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S50/00—Arrangements for controlling solar heat collectors
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- 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
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Abstract
The invention discloses a boosting mixed oil injection adjusting system and method for a trough type heat collecting field, and belongs to the field of trough type solar light-gathering heat collection. The system comprises a main oil tank, a main oil pump, an adjusting oil tank, an adjusting oil pump, a flow adjusting valve, an oil injector, corresponding pipelines and auxiliary equipment. The system utilizes low-temperature heat conduction oil from an oil tank to be adjusted according to the oil temperature at the branch outlet of the heat collection field, adjusts the flow entering the oil injector through a flow adjusting valve, and mixes the low-temperature heat conduction oil with the heat conduction oil from an upstream heat collector to achieve the purpose of adjusting the temperature of the heat conduction oil at the outlet of the heat collection field. According to the invention, on the basis of the existing branch flow and heat collector defocusing regulation mode, an oil injection regulation means is added, so that the temperature regulation of heat conduction oil at the outlet of the heat collection field is more flexible and effective, the oil quality deterioration caused by local overheating is avoided, the energy loss caused by the heat collector defocusing regulation is greatly reduced, the thermal efficiency of the groove type heat collection field is improved, the solar energy utilization rate is increased, and the carbon emission is reduced.
Description
Technical Field
The invention belongs to the field of trough type light-gathering heat collection fields, and particularly relates to a system and a method for regulating boosting mixed oil injection of a trough type heat collection field.
Background
The groove type solar heat collection field utilizes a parabolic groove type condenser to condense sunlight on a focal line of the groove type solar heat collection field, and a vacuum heat absorption pipe is arranged on the focal line and used for absorbing solar energy and heating a heat transfer medium; the power cycle of the steam can be used for generating electricity or being applied to other heat utilization fields. The working medium of the heat collection field in the groove type solar thermal power generation system is heat conduction oil, and the regulation of the temperature of the heat conduction oil of the heat collection field is a key regulation task in the operation of the heat collection field.
At present, the temperature of heat conduction oil at the outlet of a heat collection field is adjusted mainly according to the irradiation intensity of solar energy through the flow adjustment of the heat conduction oil, and the defocusing of a heat collector is assisted to realize the stability of the temperature of the heat conduction oil at the outlet of the heat collection field.
The heat collection field is composed of a plurality of branches, and each branch is connected with a plurality of heat collectors in series. The flow resistance of each branch is different due to manufacturing and installation differences of the device; the parallel structures of a plurality of branches in the heat collection field influence each other, so that the flow regulation coupling is serious, the flow of each branch is difficult to balance, the temperature of a heat conduction oil outlet is difficult to regulate, and the local overtemperature of each branch causes the oil quality to be rapidly deteriorated, even the equipment is damaged; moreover, when the oil temperature of the outlet of each branch is inconsistent, in order to ensure the safety of the branch with higher temperature, the oil temperature of the outlet of each branch is lower, and the total oil temperature of the heat collection field is lower; meanwhile, at the peak moment of solar energy, the excessive solar energy causes the oil temperature of the heat collection field to be too high, defocusing adjustment has to be adopted, partial solar energy is lost, and the solar energy cannot be fully and effectively utilized. And because the heat collecting loop is as long as 600 meters, the heat collecting loop has the characteristics of large inertia and long time delay, and the rapid and random fluctuation of solar energy, the accurate control of the outlet temperature of the heat collecting loop is difficult to realize through the traditional control method, so that the oil temperature at the outlet of the loop is over-temperature, the oil quality is deteriorated, and the immeasurable loss is brought to the safe and economic operation of a power station.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a tank type heat collecting field boosting mixed oil injection regulating system and an oil temperature regulating method. According to the invention, the oil injection adjusting system is additionally arranged in front of the final-stage heat collector of the heat collecting loop, so that the oil temperature at the outlet of the heat collecting loop can be quickly adjusted, the problem of untimely response of the conventional oil temperature adjustment is solved, and meanwhile, the energy loss caused by defocusing is reduced. The invention adds a heat conduction oil temperature adjusting means at the branch outlet of the heat collecting field, can more effectively control the temperature of the heat conduction oil at the branch outlet of the heat collecting field, ensures the stability of the oil temperature at the main outlet of the heat collecting field, simultaneously avoids local overheating and slows down the oil quality deterioration rate of the heat conduction oil; the temperature is adjusted through oil injection, solar heat loss caused by defocusing adjustment of the heat collector can be greatly reduced, the heat efficiency of the groove type heat collection field is improved, the utilization rate of new energy is increased, and carbon emission is reduced.
The technical scheme of the invention is as follows: a groove type heat collection field boosting mixed oil injection regulating system comprises a main oil tank, a main oil pump, a liquid level regulating valve, a regulating oil tank, a regulating oil pump, a flow regulating valve, an oil injector, corresponding pipelines and auxiliary equipment; the main oil tank is connected with the main oil pump through a pipeline, a plurality of heat collectors connected in series form a branch, heat conduction oil sequentially flows through all the heat collectors in the branch, a plurality of branches are connected in parallel in a heat collection field, and the main oil pump is connected with the plurality of branches connected in parallel through the pipeline; the heat conducting oil of a plurality of parallel branches is heated by each branch heat collector and then is collected in a pipeline to flow out of a heat collection field;
one end of the liquid level regulating valve is connected with the outlet of the main oil pump through a pipeline, and the other end of the liquid level regulating valve is connected with the regulating oil tank through a pipeline; the bottom of the regulating oil tank is connected to a regulating oil pump through a pipeline, and the regulating oil pump is connected to a flow regulating valve through a pipeline; the flow regulating valve is connected with the oil injector through a pipeline; the oil sprayer is arranged at the joint between the last-stage heat collector and the previous-stage heat collector in the branch circuits, and the oil sprayer is arranged on each branch circuit.
Furthermore, a liquid level regulating valve, a regulating oil tank and a regulating oil pump are arranged in the groove type heat collecting field boosting mixed oil injection regulating system; each branch is provided with a plurality of flow regulating valves and a plurality of oil injectors, and is respectively connected to a regulating oil pump through a pipeline to form a multi-stage regulating mechanism; the heat conduction oil from the flow regulating valve is mixed with the heat conduction oil of the heat collection branch in the oil injector, so that the temperature of the heat conduction oil in the branch is reduced.
Furthermore, a plurality of branches are arranged in the groove type heat collection field boosting mixed oil injection regulating system, and all or part of the branches are provided with at least one flow regulating valve and at least one oil injector and are respectively connected to a regulating oil pump through a pipeline;
the at least one oil injector is further arranged between every two interconnected heat collectors in each stage before the final stage heat collector in sequence to form multi-stage regulation;
the at least one fuel injector is further disposed in sequence between each two interconnected collectors of each stage preceding the final collector.
According to another aspect of the present invention, there is provided a trough type heat collection field temperature adjusting method, including:
the liquid level of the regulating oil tank is regulated by a liquid level regulating valve and maintained at a preset liquid level, the regulating oil pump boosts the heat conduction oil in the regulating oil tank, then the boosted heat conduction oil is sent to each branch flow regulating valve through a pipeline, and the heat conduction oil is sent to the oil injector through the pipeline; the temperature of the heat conduction oil sprayed in the oil sprayer is lower than the temperature of the heat conduction oil at the outlet of an upstream heat collector connected with the oil sprayer, and the temperature of the mixed heat conduction oil is lower than the temperature of the heat conduction oil at the outlet of the upstream heat collector; the temperature of the heat conducting oil after the oil sprayer is mixed is regulated by the flow of the sprayed low-temperature heat conducting oil, and the flow of the heat conducting oil is regulated by a flow regulating valve; the mixed heat conducting oil enters a downstream heat collector connected with the oil injector, all the downstream heat collectors of the branch are continuously heated, and the temperature of the heat conducting oil flowing out of the outlet of the last heat collector is the temperature of the heat conducting oil at the outlet of the branch; and adjusting a flow adjusting valve to change the flow of the low-temperature heat-conducting oil sprayed into the oil sprayer, thereby adjusting the temperature of the heat-conducting oil at the outlet of the branch.
Furthermore, all the branches or part of the branches of the heat collection field are respectively provided with a flow regulating valve, an oil sprayer and a connecting pipeline thereof, so that a single-stage oil spraying temperature reduction oil temperature regulating mode is formed; and a plurality of flow regulating valves, a plurality of oil injectors and connecting pipelines thereof are respectively arranged on all the heat collecting field branches or part of the branches to form a multi-stage oil injection temperature-reducing oil temperature regulating mode.
Further, the heat conducting medium of the heat collector in the heat collection field is heat conducting fluid and comprises liquid medium or supercritical medium at the working temperature of all systems; the fuel injector is internally mixed by two heat-conducting media with different temperatures.
The invention has the beneficial effects that:
the invention adds a temperature adjusting means of the groove type heat collecting field branch, can more effectively control the temperature of the heat collector branch, avoids local overheating and slows down the oil quality deterioration rate of the heat conducting oil; after the pressure of the regulating oil pump is increased, the flexibility of oil injection regulation and the temperature regulation range are increased; the temperature is adjusted through oil injection, energy loss caused by defocusing adjustment of the heat collector can be greatly reduced, the heat efficiency of the groove type heat collection field is improved, and the utilization rate of new energy is increased. An oil injection adjusting device is added in front of the final-stage heat collector of the branch, and the temperature of the inlet of the final-stage heat collector is reduced by injecting low-temperature oil. Thereby realizing the purpose of adjusting the oil temperature at the outlet of the heat collecting branch. The invention solves the problem that the oil temperature at the outlet of the branch cannot be adjusted in time due to the large inertia and large delay of the heat collection branch in the conventional adjusting mode.
Drawings
FIG. 1 is a schematic structural diagram of a boost hybrid fuel injection regulation system of a trough heat collection field according to an embodiment;
FIG. 2 is a schematic diagram of a structural form of a boost hybrid injection regulation system of a trough type heat collection field according to another embodiment.
Wherein: the device comprises a main oil tank (1), a main oil pump (2), a heat collector (3), a flow regulating valve (4), an oil sprayer (5), a liquid level regulating valve (6), an adjusting oil tank (7), an adjusting oil pump (8), a primary flow regulating valve (4-1), a secondary flow regulating valve (4-2), a primary oil sprayer (5-1) and a secondary oil sprayer (5-2).
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention without creative efforts.
Example 1
Fig. 1 is an embodiment 1 of a groove type heat collecting field boosting hybrid fuel injection adjusting system and an oil temperature adjusting method. The system comprises a main oil tank (1), a main oil pump (2), a heat collector (3), a flow regulating valve (4), an oil sprayer (5), a liquid level regulating valve (6), an adjusting oil tank (7), an adjusting oil pump (8), corresponding pipelines and auxiliary equipment.
The main oil tank (1) is connected with the main oil pump (2) through a pipeline, and the main oil pump (2) is connected with a plurality of parallel branch circuits of the heat collector (3) through pipelines; the heat collectors (3) connected in series form a branch, heat conduction oil sequentially flows through all the heat collectors in the branch, the heat collection field is provided with a plurality of branches connected in parallel, and the heat conduction oil of the branches is heated by the branch of the heat collectors and then is collected in a pipeline to flow out of the heat collection field; one end of the liquid level regulating valve (6) is connected with the outlet of the main oil pump (2) through a pipeline, and the other end of the liquid level regulating valve is connected with the regulating oil tank (7) through a pipeline; the bottom of the adjusting oil tank (7) is connected to an adjusting oil pump (8) through a pipeline, and the adjusting oil pump (8) is connected to the flow adjusting valve (4) through a pipeline; the flow regulating valve (4) is connected with the oil injector (5) through a pipeline; the oil injector (5) is arranged at the joint between the heat collectors (3) in the branches, and the oil injector (5) is arranged on each branch.
The heat conduction oil with lower temperature from the flow regulating valve (4) is mixed in the oil injector (5), so that the temperature of the heat conduction oil in the branch is reduced.
All the branches are provided with at least one flow regulating valve (4) and at least one fuel injector (5) which are connected by a pipeline;
the key equipment of the temperature adjusting method of the groove type heat collecting field is a flow adjusting valve (4), an oil injector (5), a liquid level adjusting valve (6), an adjusting oil tank (7) and an adjusting oil pump (8) which are connected through pipelines; the temperature (293 ℃) of the heat conduction oil sprayed into the oil sprayer (5) is lower than the temperature (368 ℃) of the heat conduction oil at the outlet of the upstream heat collector (3) connected with the oil sprayer (5), and the temperature of the mixed heat conduction oil is lower than the temperature (0-20 ℃) of the heat conduction oil at the outlet of the upstream heat collector (3); the temperature of the heat conduction oil mixed by the oil sprayer (5) is adjusted by the flow of the sprayed low-temperature heat conduction oil, and the flow of the low-temperature heat conduction oil is adjusted by the flow adjusting valve (4); the mixed heat conducting oil enters a downstream heat collector (3) connected with an oil sprayer (5), all the downstream heat collectors (3) of the branch are continuously heated, and finally the heat conducting oil flows out of the last heat collector (3), and the temperature of the heat conducting oil at the outlet of the branch is the temperature (393 ℃) of the heat conducting oil at the outlet of the branch; and adjusting a flow adjusting valve (4) to change the flow of the low-temperature heat-conducting oil sprayed into the oil sprayer (5), thereby adjusting the temperature of the heat-conducting oil at the outlet of the branch.
The heat conducting medium of the groove type heat collection field heat collector is heat conducting fluid and comprises liquid media or supercritical media at the working temperature of all systems, such as heat conducting oil, water, molten salt and silicone oil; the fuel injector (5) is internally mixed by two heat-conducting media with different temperatures.
Example 2
Fig. 2 is an embodiment 2 of a groove type heat collecting field boosting hybrid fuel injection adjusting system and an oil temperature adjusting method. The system consists of a main oil tank (1), a main oil pump (2), a heat collector (3), a liquid level regulating valve (6), an adjusting oil tank (7), an adjusting oil pump (8), a primary flow regulating valve (4-1), a primary oil sprayer (5-1), a secondary flow regulating valve (4-2), a secondary oil sprayer (5-2), corresponding pipelines and auxiliary equipment.
The main oil tank (1) is connected with the main oil pump (2) through a pipeline, and the main oil pump (2) is connected with the heat collectors (3) which are connected in series and in parallel through pipelines; the heat collectors (3) connected in series form a branch, heat conduction oil sequentially flows through all the heat collectors in the branch, the heat collection field is provided with a plurality of branches connected in parallel, and the heat conduction oil of the branches is heated by the branch of the heat collectors and then is collected in a pipeline to flow out of the heat collection field; one end of the liquid level regulating valve (6) is connected with the outlet of the main oil pump (2) through a pipeline, and the other end of the liquid level regulating valve is connected with the regulating oil tank (7) through a pipeline; the bottom of the adjusting oil tank (7) is connected to an adjusting oil pump (8) through a pipeline, and the adjusting oil pump (8) is respectively connected to a primary flow adjusting valve (4-1) and a secondary flow adjusting valve (4-2) through pipelines; the first-stage flow regulating valve (4-1) is connected with the first-stage oil sprayer (5-1) through a pipeline, and the second-stage flow regulating valve (4-2) is connected with the second-stage oil sprayer (5-2) through a pipeline; the first-stage oil sprayer (5-1) is arranged at the joint of the heat collectors (3) in the branches, each branch is provided with one first-stage oil sprayer (5-1), the second-stage oil sprayer (5-2) is arranged at the joint of the heat collectors (3) in the branches and is positioned at the downstream of the first-stage oil sprayer (5-1), and each branch is provided with one second-stage oil sprayer (5-2).
The heat conduction oil (293 ℃) with lower temperature from the primary flow regulating valve (4-1) is mixed in the primary oil injector (5-1), so that the temperature of the heat conduction oil in the branch is reduced.
The cold oil (293 ℃) with lower temperature from the secondary flow regulating valve (4-2) is mixed in the secondary oil injector (5-2), so that the temperature of the heat-conducting oil in the branch is reduced.
All the branches are provided with at least one first-stage flow regulating valve (4-1), at least one first-stage oil sprayer (5-1), at least one second-stage flow regulating valve (4-2) and at least one second-stage oil sprayer (5-2) which are connected by pipelines;
the key equipment of the temperature adjusting method of the groove type heat collection field is a primary flow adjusting valve (4-1), a secondary flow adjusting valve (4-2), a primary oil sprayer (5-1) and a secondary oil sprayer (5-2) which are connected through pipelines;
the temperature (293 ℃) of the heat conduction oil sprayed in the first-stage oil sprayer (5-1) is lower than the temperature (343 ℃) of the heat conduction oil at the outlet of the upstream heat collector (3) connected with the first-stage oil sprayer (5-1), and the temperature of the mixed heat conduction oil is lower than the temperature of the heat conduction oil at the outlet of the upstream heat collector (3); the temperature of the heat conduction oil mixed by the primary oil injector (5-1) is adjusted by the flow of the injected low-temperature heat conduction oil, and the flow of the low-temperature heat conduction oil is adjusted by a primary flow adjusting valve (4-1);
the temperature (293 ℃) of the heat conduction oil sprayed in the second-stage oil sprayer (5-2) is lower than the temperature (368 ℃) of the heat conduction oil at the outlet of the upstream heat collector (3) connected with the second-stage oil sprayer (5-2), and the temperature of the mixed heat conduction oil is lower than the temperature of the heat conduction oil at the outlet of the upstream heat collector (3); the temperature of the heat conduction oil mixed by the secondary oil injector (5-2) is adjusted by the flow of the injected low-temperature heat conduction oil, and the flow of the low-temperature heat conduction oil is adjusted by a secondary flow adjusting valve (4-2);
the mixed heat conducting oil enters a downstream heat collector (3) connected with a secondary oil sprayer (5-2), all the downstream heat collectors (3) of the branch are continuously heated, and finally the heat conducting oil flows out of the last heat collector (3), and the temperature of the heat conducting oil at the outlet of the branch is the temperature (393 ℃) of the heat conducting oil at the outlet of the branch; the flow of the low-temperature heat conduction oil sprayed into the first-stage oil sprayer (5-1) is changed by the first-stage flow regulating valve (4-1), the flow of the low-temperature heat conduction oil sprayed into the second-stage oil sprayer (5-2) is changed by the second-stage regulating flow regulating valve (4-2), and therefore the temperature of the heat conduction oil at the outlet of the branch is regulated through two-stage temperature regulation.
Although illustrative embodiments of the present invention have been described above to facilitate the understanding of the present invention by those skilled in the art, it should be understood that the present invention is not limited to the scope of the embodiments, but various changes may be apparent to those skilled in the art, and it is intended that all inventive concepts utilizing the inventive concepts set forth herein be protected without departing from the spirit and scope of the present invention as defined and limited by the appended claims.
Claims (6)
1. A groove type heat collection field boosting mixed oil injection regulating system is characterized by comprising a main oil tank, a main oil pump, a liquid level regulating valve, a regulating oil tank, a regulating oil pump, a flow regulating valve, an oil injector, corresponding pipelines and auxiliary equipment; the main oil tank is connected with the main oil pump through a pipeline, a plurality of heat collectors connected in series form a branch, heat conduction oil sequentially flows through all the heat collectors in the branch, a plurality of branches are connected in parallel in a heat collection field, and the main oil pump is connected with the plurality of branches connected in parallel through the pipeline; the heat conducting oil of a plurality of parallel branches is heated by each branch heat collector and then is collected in a pipeline to flow out of a heat collection field;
one end of the liquid level regulating valve is connected with the outlet of the main oil pump through a pipeline, and the other end of the liquid level regulating valve is connected with the regulating oil tank through a pipeline; the bottom of the regulating oil tank is connected to a regulating oil pump through a pipeline, and the regulating oil pump is connected to a flow regulating valve through a pipeline; the flow regulating valve is connected with the oil injector through a pipeline; the oil sprayer is arranged at the joint between the last-stage heat collector and the previous-stage heat collector in the branch circuits, and the oil sprayer is arranged on each branch circuit.
2. The system for regulating boost mixed oil injection of the trough type heat collection field according to claim 1, wherein a liquid level regulating valve, a regulating oil tank and a regulating oil pump are arranged in the system for regulating boost mixed oil injection of the trough type heat collection field; each branch is provided with a plurality of flow regulating valves and a plurality of oil injectors, and is respectively connected to a regulating oil pump through a pipeline to form a multi-stage regulating mechanism; the heat conduction oil from the flow regulating valve is mixed with the heat conduction oil of the heat collection branch in the oil injector, so that the temperature of the heat conduction oil in the branch is reduced.
3. The system for regulating boost mixed oil injection of the trough type heat collection field according to claim 1, wherein a plurality of branches are arranged in the system for regulating boost mixed oil injection of the trough type heat collection field, and all or part of the branches are provided with at least one flow regulating valve and at least one oil injector and are respectively connected to a regulating oil pump through a pipeline;
the at least one fuel injector is further disposed in sequence between each two interconnected collectors of each stage preceding the final collector to form a multi-stage regulation.
4. A trough collector temperature regulation method using the system of any one of claims 1 to 3,
the liquid level of the regulating oil tank is regulated by a liquid level regulating valve and maintained at a preset liquid level, the regulating oil pump boosts the heat conduction oil in the regulating oil tank, then the boosted heat conduction oil is sent to each branch flow regulating valve through a pipeline, and the heat conduction oil is sent to the oil injector through the pipeline; the temperature of the heat conduction oil sprayed in the oil sprayer is lower than the temperature of the heat conduction oil at the outlet of an upstream heat collector connected with the oil sprayer, and the temperature of the mixed heat conduction oil is lower than the temperature of the heat conduction oil at the outlet of the upstream heat collector; the temperature of the heat conducting oil after the oil sprayer is mixed is regulated by the flow of the sprayed low-temperature heat conducting oil, and the flow of the heat conducting oil is regulated by a flow regulating valve; the mixed heat conducting oil enters a downstream heat collector connected with the oil injector, all the downstream heat collectors of the branch are continuously heated, and the temperature of the heat conducting oil flowing out of the outlet of the last heat collector is the temperature of the heat conducting oil at the outlet of the branch; and adjusting a flow adjusting valve to change the flow of the low-temperature heat-conducting oil sprayed into the oil sprayer, thereby adjusting the temperature of the heat-conducting oil at the outlet of the branch.
5. The method for regulating the temperature of the slot type heat collection field according to claim 4, wherein a flow regulating valve, an oil injector and a connecting pipeline thereof are respectively arranged on all branches or part of branches of the heat collection field to form a single-stage oil injection temperature reduction oil temperature regulating mode; and a plurality of flow regulating valves, a plurality of oil injectors and connecting pipelines thereof are respectively arranged on all the heat collecting field branches or part of the branches to form a multi-stage oil injection temperature-reducing oil temperature regulating mode.
6. The method for regulating the temperature of the trough heat collection field according to claim 4, wherein the heat-conducting medium of the heat collector of the heat collection field is a heat-conducting fluid, and comprises a liquid medium or a supercritical medium at all system operating temperatures; the fuel injector is internally mixed by two heat-conducting media with different temperatures.
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| CN205714612U (en) * | 2016-06-06 | 2016-11-23 | 中国电力工程顾问集团华北电力设计院有限公司 | The anti-condensation structure of trough type solar power generation and solar parabolic through power generation system |
| CN205825292U (en) * | 2016-06-06 | 2016-12-21 | 天津大学建筑设计研究院 | Groove type solar ammonia absorption type heat pump and air source heat pump combined air conditioner system |
| CN207894048U (en) * | 2018-01-25 | 2018-09-21 | 传奇电气（沈阳）有限公司 | Hybrid Heating system for drying equipment |
| CN208606251U (en) * | 2018-07-11 | 2019-03-15 | 河北道荣新能源科技有限公司 | A kind of solar energy heating oil energy storage trough-electricity heating system |
| CN209840445U (en) * | 2018-12-18 | 2019-12-24 | 南京天创电子技术有限公司 | System for solar heating heat supply pipe network steam and comdenstion water |
| CN213955662U (en) * | 2020-09-16 | 2021-08-13 | 北京时代博诚能源科技有限公司 | Solar energy coupling system of heat conduction oil heating furnace |
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