A kind of groove type solar collection heat generating system
Technical field
The present invention relates to a kind of solar power system, especially a kind of groove type solar collection heat generating system, belong to too
Sun can technical field of power generation.
Background technology
Concentration type solar generation technology is as a kind of important way of Solar use, it has also become international solar energy skill
The important directions of art development, according to the difference of heat collector type, concentration type solar electricity generation system can be divided into trough system, tower
It is solar electrical energy generation mode most economical at present that formula system and disk system three major types, wherein groove type solar thermal-arrest generate electricity, and
And only trough type solar power generation achieves commercialized running.
The operation principle of existing groove type solar collection heat generating system is:By paraboloid trough type condenser lenss by sunlight
Converge on focal line, and thermal-collecting tube is installed on focal line and absorb solar radiant energy, then by the heat-conducting medium of thermal-arrest Bottomhole pressure
Produce vapor with hydrothermal exchange, relend and help vapor power cycle to generate electricity.Because existing groove type solar thermal-arrest generates electricity it is
Mostly adopt conduction oil in system as the heat carrier absorbing solar radiant energy, and the cost of conduction oil and operating pressure are higher, and
Generally 400 DEG C of the operating temperature upper limit, it may be difficult to realize higher running temperature on the premise of not changing heat-conducting medium;With
When due in existing groove type solar collection heat generating system with water as heat exchange medium, by vapor drive decompressor band
Dynamic electrical power generators, it is commonly known that the boiling point of water is 100 DEG C, are compared with some low-boiling point liquid media (as liquid freon),
Producing high-pressure steam needs to absorb more heat, thus have impact on the generating efficiency of system.In addition the existing slot type sun
It is to solve the problems, such as continuous operation in the case of night or solar irradiance are low, in solar power system that heat generating system can be collected
It is provided with a set of energy storage device, this energy storage device, using the fused salt jar structure with heat-insulating property, stores sunlight with fused-salt medium
The heat energy collected under sufficient state, when in tank, temperature of molten salt also can make hyperthermic treatment to fused salt when not reaching and requiring, but existing
Fused salt tank, particularly the larger fused salt tank of capacity it cannot be guaranteed that in tank temperature of molten salt equilibrium concordance, exist in tank body
With the vessel edge temperature difference in the middle part of the bottom temperature difference, tank body, the temperature of molten salt near import position is often higher than away from import in addition
Temperature of molten salt, the inconsistent stability that have impact on electricity generation system work of temperature of molten salt.
Content of the invention
Present invention aims to the drawback of prior art, provide a kind of groove type solar collection heat generating system, with
Improve work efficiency and stability, the reduction system operation cost of solar electrical energy generation.
For achieving the above object, the technical solution adopted in the present invention is:
A kind of groove type solar collection heat generating system, including sun-oriented light concentrating device, heat-conducting medium circulation line, energy storage dress
Put, heat exchange vaporizer, decompressor TRT, weary gas disposal EGR and PLC controlling organization;Described sun-oriented light concentrating dress
Condenser lenss, supporting mechanism and drive mechanism are installed, described condenser lenss are parabolic shape, install by rotatable support shaft
On supporting mechanism, condenser lenss are rotated with the direction of illumination of sunlight by driving mechanisms control, solid on the focal line of condenser lenss
Dingan County fills thermal-collecting tube, and described thermal-collecting tube connects heat-conducting medium circulation line;Described heat-conducting medium circulation line with fused salt is
Heat carrier, and energy storage device is set in heat-conducting medium circulation line;Described energy storage device is provided with into and out of heat exchange vaporizer
Fused-salt medium flow pipe;Described heat exchange vaporizer is used for realizing the energy exchange of fused-salt medium and low boiling organic working medium,
Low boiling organic working medium is made to enter decompressor TRT after evaporating;Described decompressor TRT includes decompressor and electromotor
Two parts, the weary gas outlet of described decompressor is connected with weary gas disposal EGR.
Above-mentioned groove type solar collection heat generating system, the preferred liquid freon working medium of described low boiling organic working medium.
Above-mentioned groove type solar collection heat generating system, described energy storage device is provided with two fused salt storage tanks, wherein connects heat conduction
The fused salt storage tank of medium circulation pipeline import is cold salt cellar, and the fused salt storage tank of connection heat-conducting medium circulation line outlet is hot salt
Tank, setting connection bypass between cold salt cellar and hot salt cellar, in described connection bypass, switch valve is set.
Above-mentioned groove type solar collection heat generating system, described fused salt storage tank includes tank body and is arranged on the top on tank body top
Lid, described top cover is provided with fused salt inlet tube and fused salt outlet, also assembles rabbling mechanism, heating arrangements, thermometric on top cover
Element and pump for liquid salts, described rabbling mechanism includes stirring motor, main agitator and one group of auxiliary agitator, the axis of main agitator
With tank body axis collinear, each auxiliary agitator is distributed on main agitator periphery, and main agitator is in transmission connection with stirring motor, and master stirs
Mix device to be in transmission connection with each auxiliary agitator through transmission component, main agitator blade is less than each auxiliary agitator blade.
Above-mentioned groove type solar collection heat generating system, in described sun-oriented light concentrating device, condenser lenss quantity is no less than two groups, institute
State the two ends that supporting mechanism is arranged in each group of condenser lenss, the supporting mechanism between two adjacent groups condenser lenss is installed for controlling
The drive mechanism that condenser lenss processed rotate;Described drive mechanism includes oil cylinder and swivel mount assembly, and described swivel mount assembly is provided with solid
Reservation, rotary shaft, rotation driving arm and connecting plate, described fixed seat is arranged on supporting mechanism, and described rotary shaft is arranged on solid
In reservation, rotating shaft terminal connects the support shaft of condenser lenss by connecting plate, fixedly mounts rotation driving arm, institute on the rotary shaft
State rotation driving arm, oil cylinder quantity is two groups, the hinged dress of expansion link of wherein first group rotation driving arm and the first group oil cylinder
Join, the expansion link hinge mounted of second group of rotation driving arm and the second group oil cylinder, on the perspective plane vertical with described rotary shaft,
The angle of first group of rotation driving arm and second group of rotation driving arm central axis is α, 45 °≤α≤150 °.
Above-mentioned groove type solar collection heat generating system, described heat exchange vaporizer is provided with housing and spirals in housing hollow
Heat-exchange tube;The fused-salt medium import of hot salt cellar and heat-exchange tube is communicated with the side wall of described housing, connects heat exchange
The fused-salt medium outlet of Guan Yuleng salt cellar, arranges liquid freon working medium import in housing bottom, in case top setting fluorine profit
The outlet of high vapor outlet port, described liquid freon working medium import and weary gas disposal EGR, described freon steams
Decompressor admission gear in gas outlet decompressor TRT.
Above-mentioned groove type solar collection heat generating system, the housing of described heat exchange vaporizer also sets up for monitoring liquid
The liquidometer of freon medium level height, described liquid level is calculated as magnetic flap level gauge.
Above-mentioned groove type solar collection heat generating system, described weary gas disposal EGR includes gs-oil separator, oil return
Pipeline, condenser, cooling water circulation pipeline and fluid reservoir;Described gs-oil separator is the barrel being vertically arranged, and divides in oil gas
The gas mixture import of connection decompressor weary gas outlet is set from the top of device, and the bottom of gs-oil separator is communicated with oil return
The oil drain out of pipeline, the fluid isolated flows back to the lubricating oil feed mechanism of decompressor through return line, in gs-oil separator
Top is provided with gas outlet, and gas outlet connects condenser inlet through pipeline;Described condenser is also with cooling water circulation pipeline even
Logical, it is provided with liquid outlet in condenser bottom, liquid outlet connects fluid reservoir through pipeline, and the outlet of described fluid reservoir is through drain pipe
Road connects the liquid freon working medium entrances of heat exchange vaporizer.
Above-mentioned groove type solar collection heat generating system, arranges first separation section and two from top to bottom in described gs-oil separator
Secondary segregation section, is arranged side by side several separation flaps in first separation section, and the described flap that separates is fixed on oil gas by support bar
On separator inwall;It is provided with the obconic separating bucket of more than two-layer in secondary separation section, be provided with normal cone in separating bucket
The separation cone of shape, separates cone top part and is provided with gas passage, separating bucket and separation cone are made up of waveform plate.
Above-mentioned groove type solar collection heat generating system, is connected with gs-oil separator in described weary gas disposal EGR
Return line on arrange scavenge oil pump;Cooling water is set in the cooling water circulation pipeline of described weary gas disposal EGR
Tower, connects in cooling tower and installs cooling water pump on the inlet pipeline of condenser;Storage in described weary gas disposal EGR
Liquid freon working medium pump is arranged on the drain pipe road of flow container.
The present invention, after using technique scheme, has the effect of following technological progress:
It is heat carrier that the present invention adopts fused salt in heat-conducting medium circulation line, and described fused salt refers to that salts substances heating is molten
The liquid being formed after change, fused salt, compared with conduction oil, can obtain higher use temperature at the same pressure, and fused salt
Medium has the advantages that not explode, does not burn, Heat-resistant stable performance is good, thus improve the heat transfer coefficient of heat-conducting medium;This
Bright liquid freon can be made with lower boiling liquid freon as heat exchange medium to gasify rapidly by heat exchange vaporizer, then
Drive decompressor to drive electrical power generators by freon steam, thus significantly improve the generating efficiency of system.
The present invention is also improved to the structure of the fused salt tank in energy storage device, in the effect of double-deck major-minor agitator
Lower it is achieved that levels fused salt in fused salt tank, near heater and away from heater fused salt, near import position and remote
From import fused salt quick, be sufficiently mixed uniformly it is ensured that the temperature of molten salt uniformity of output, thus being conducive to electricity generation system work
The stability made.
The present invention arranges connection bypass between the cold salt cellar and hot salt cellar of energy storage device, and sets in described connection bypass
Put switch valve, therefore can achieve the switching of heat-conducting medium circulation route, when, under sunlight sufficiency, fused-salt medium flows through thermal-arrest
Pipe absorbs solar radiation energy;In the case of night or rainy weather, fused-salt medium passes through to connect bypass circuit flowing, utilizes
The heat of fused-salt medium storage generates electricity.
The present invention completes the energy exchange of fused-salt medium and liquid freon working medium by heat exchange vaporizer, and can pass through
It is arranged on the liquid level of liquid freon working medium in the liquidometer real-time monitoring housing on heat exchange evaporator shell, to realize
Precise control to working medium flow in weary gas disposal EGR.
The present invention is provided with two groups of rotation driving arms and oil cylinder in the drive mechanism of sun-oriented light concentrating device, and with institute
State and on the vertical perspective plane of rotary shaft, first group of rotation driving arm is set with second group of rotation driving arm central axis angle α numerical value
It is calculated as 45 ° 150 °, therefore can ensure condenser lenss in 180 ° of angular ranges by the cooperation of the first group oil cylinder and the second group oil cylinder
Rotate, it is achieved thereby that fully absorbing the purpose of the emittance of the sun, improve generating efficiency.
Invention also improves in weary gas disposal EGR gs-oil separator structure, in gs-oil separator arrange
First separation section and secondary separation section, enter the oil gas mixture priority of gs-oil separator through first separation section, secondary point
From the separation of section, after rubbing through multiple impacts, fluid flows under the influence of gravity into gs-oil separator bottom to gas mixture,
Discharged by oil drain out;The Freon gases isolated are up in gs-oil separator, and discharge through gas outlet, enter back into condensation
Be converted to liquid after device heat exchange and enter fluid reservoir, the therefore gs-oil separator of the present invention can achieve without additional power device
Oil gas is completely separated, good separating effect, save energy.
In sum, to solve heat-conducting medium operating temperature present in prior art low for the present invention, and heat exchange working medium is boiled
Point temperature is high, gasification latent heat is big, and the inconsistent problem of temperature of molten salt in energy storage device, not only increases the work of electricity generation system
Efficiency and stability, reduce the operating cost of system simultaneously.
Brief description
Fig. 1 is the General Arrangement of groove type solar collection heat generating system of the present invention;
Fig. 2 is sun-oriented light concentrating schematic device;
Fig. 3 is A-A cross-sectional view in Fig. 2;
Fig. 4 is rotation frame assembly structure schematic diagram;
Fig. 5 is that (for clearly showing that two groups of rotation driving arm configurations, in figure eliminates Left-side support to swivel mount assembly side view
Hardened structure);
Fig. 6 is thermal-collecting tube, heat-conducting medium circulation line, energy storage device annexation schematic diagram;
Fig. 7 is energy storage device structure schematic diagram;
Fig. 8 is heat exchange evaporation structure schematic diagram;
Fig. 9 is weary gas disposal EGR schematic diagram;
Figure 10 is oil-gas separator structure schematic diagram.
The each label of in figure is expressed as:
1st, sun-oriented light concentrating device, 1-1, condenser lenss, 1-2, thermal-collecting tube, 1-3, supporting mechanism, 1-4, drive mechanism, 1-4-1,
Oil cylinder, 1-4-2, swivel mount assembly, 1-4-2-1, fixed seat, 1-4-2-2, rotary shaft, 1-4-2-3, rotation driving arm, 1-4-2-
4th, connecting plate;
2nd, heat-conducting medium circulation line, 2-1, connection bypass, 2-2, switch valve;
3rd, energy storage device, 3-1, fused salt inlet tube, 3-2, auxiliary agitator, 3-3, main agitator, 3-4, stirring motor, 3-
5th, fused salt tank, 3-6, fused salt outlet, 3-7, temperature element, 3-8, heating arrangements, 3-9, tank body, 3-10, top cover;
4th, heat exchange vaporizer, 4-1, housing, 4-2, fused-salt medium import, 4-3, heat-exchange tube, 4-4, fused-salt medium go out
Mouthful, 4-5, liquid freon working medium import, 4-6, liquidometer, 4-7, freon vapor outlet port;
5th, decompressor TRT;
6th, weary gas disposal EGR, 6-1, gs-oil separator, 6-1-1, gas mixture import, 6-1-2, gas go out
Mouthful, 6-1-3, separate flap, 6-1-4, support bar, 6-1-5, separate bore, 6-1-6, separating bucket, 6-1-7, oil drain out, 6-2, return
Oil pipe line, 6-3, condenser, 6-4, cooling tower, 6-5, fluid reservoir, 6-6, cooling water pump, 6-7, liquid freon working medium pump,
6-8, scavenge oil pump.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment is described in further details to the present invention:
Referring to Fig. 1, Fig. 2, Fig. 3, the present invention is a kind of groove type solar collection heat generating system, and it includes sun-oriented light concentrating device
1st, heat-conducting medium circulation line 2, energy storage device 3, heat exchange vaporizer 4, decompressor TRT 5, weary gas disposal recirculation dress
Put 6 and PLC controlling organizations;Described sun-oriented light concentrating device 1 is provided with condenser lenss 1-1, supporting mechanism 1-3 and drive mechanism 1-4, described
Condenser lenss 1-1 is parabolic shape, is arranged on supporting mechanism 1-3 by rotatable support shaft, condenser lenss 1-1 is by driving machine
Structure 1-4 controls the direction of illumination with sunlight to rotate, and fixedly mounts thermal-collecting tube 1-2, described thermal-arrest on the focal line of condenser lenss
Pipe 1-2 connects heat-conducting medium circulation line 2;With fused salt as heat carrier in described heat-conducting medium circulation line 2, and it is situated between in heat conduction
Energy storage device is set in matter circulation line 2;Described energy storage device 3 is provided with the fused-salt medium runner pipe into and out of heat exchange vaporizer 4
Road;Described heat exchange vaporizer 4 is used for realizing the energy exchange of fused-salt medium and low boiling organic working medium, makes the organic work of low boiling
Decompressor TRT 5 is entered, a specific embodiment of the present invention is that described low boiling organic working medium selects liquid after matter evaporation
State freon, using the advantage that liquid freon gasification temperature is low, gasification latent heat is little, improves the gasification efficiency of organic working medium;This
In invention, decompressor TRT 5 includes decompressor and electromotor two parts, drives decompressor operating by freon steam, thus
Drive electrical power generators;In the present invention, the weary gas outlet of decompressor is connected with weary gas disposal EGR 6, is discharged by decompressor
Weary gas process through weary gas disposal EGR 6 after, be again introduced into recycling in heat exchange vaporizer 4.
Referring to Fig. 1 to Fig. 5, in groove type solar collection heat generating system of the present invention, described sun-oriented light concentrating device 1
Middle condenser lenss 1-1 quantity is no less than two groups, and described supporting mechanism 1-3 is arranged in the two ends of each group of condenser lenss 1-1, adjacent two
Drive mechanism 1-4 for controlling condenser lenss to rotate is installed on the supporting mechanism 1-3 between group condenser lenss;Described drive mechanism 1-
4 include oil cylinder 1-4-1 and swivel mount assembly 1-4-2, and described swivel mount assembly 1-4-2 is provided with fixed seat 1-4-2-1, rotary shaft 1-
4-2-2, rotation driving arm 1-4-2-3 and connecting plate 1-4-2-4, described fixed seat 1-4-2-1 is arranged on supporting mechanism 1-3,
Described rotary shaft 1-4-2-2 is arranged in fixed seat 1-4-2-1, and rotary shaft 1-4-2-2 two ends are connected by connecting plate 1-4-2-4
The support shaft of condenser lenss 1-1, fixedly mounts rotation driving arm 1-4-2-3, described rotation driving arm 1- in rotary shaft 1-4-2-2
4-2-3, oil cylinder 1-4-1 quantity are two groups, the expansion link hinge mounted of wherein first group rotation driving arm and the first group oil cylinder,
Second group of rotation driving arm and the expansion link hinge mounted of the second group oil cylinder, in the projection vertical with described rotary shaft 1-4-2-2
On face, the angle of first group of rotation driving arm and second group of rotation driving arm central axis is α, 45 °≤α≤150 °, by
The cooperation of one group oil cylinder and the second group oil cylinder can ensure that condenser lenss 1-1 rotates in 180 ° of angular ranges, it is achieved thereby that fully
Absorb emittance, the purpose of improve generating efficiency of the sun.
Referring to Fig. 6, in groove type solar collection heat generating system of the present invention, described energy storage device 3 is provided with two
Fused salt storage tank, the fused salt storage tank of wherein connection heat-conducting medium circulation line 2 import is cold salt cellar, connects heat-conducting medium circulation line
The fused salt storage tank of 2 outlets is hot salt cellar, setting connection bypass 2-1 between cold salt cellar and hot salt cellar, in described connection bypass
Setting switch valve 2-2, can be realized the switching of heat-conducting medium circulation route, work as sunlight by connection bypass 2-1 breaker in middle valve 2-2
Under sufficiency, fused-salt medium flows through thermal-collecting tube 1-2 and absorbs solar radiation energy;In the case of night or rainy weather, melt
Salt medium is circulated by connection bypass 2-1, and the heat using fused-salt medium storage generates electricity.
Referring to Fig. 7, in groove type solar collection heat generating system of the present invention, described fused salt storage tank includes tank body 3-
9 are provided with fused salt inlet tube 3-1 and fused salt outlet 3- with the top cover 3-10 being arranged on tank body 3-9 top, described top cover 3-10
6, rabbling mechanism, heating arrangements 3-8, temperature element 3-7 and pump for liquid salts 3-5, described rabbling mechanism are also assembled on top cover 3-10
Including stirring motor 3-4, main agitator 3-3 and one group of auxiliary agitator 3-2, the axis of main agitator 3-3 and tank body 3-9 axis
Collinearly, each auxiliary agitator 3-2 is distributed on main agitator 3-3 periphery, and main agitator 3-3 is in transmission connection with stirring motor 3-4, main
Agitator 3-3 is in transmission connection with each auxiliary agitator 3-2 through transmission component, and main agitator blade is less than each auxiliary agitator leaf
Piece.Because the fused salt storage tank of the present invention employs said structure, therefore fused salt can be realized in the presence of double-deck major-minor agitator
Levels fused salt in tank, near heater and away from heater fused salt, near import position and fast away from import fused salt
Speed, it is sufficiently mixed uniformly it is ensured that the temperature of molten salt uniformity of output, thus being conducive to the stability of electricity generation system work.
Referring to Fig. 8, in groove type solar collection heat generating system of the present invention, described heat exchange vaporizer 4 is provided with
The housing 4-1 and heat-exchange tube 4-3 in housing hollow that spirals;Hot salt cellar and heat are communicated with the side wall of described housing 4-1
The fused-salt medium import 4-2, the connection heat-exchange tube 4-3 that exchange pipe 4-3 export 4-4 with the fused-salt medium of cold salt cellar, in housing 4-1
Bottom arranges liquid freon working medium import 4-5, arranges freon vapor outlet port 4-7, described liquid fluorine profit at housing 4-1 top
High working medium import 4-5 and the outlet of weary gas disposal EGR 6, described freon vapor outlet port 4-7 connects decompressor
The admission gear of decompressor in TRT 5;Liquidometer 4-6 is also set up on housing 4-1, described liquidometer 4-6 turns over for magnetic
Plate liquidometer, can be by the liquid level of liquid freon working medium in liquidometer 4-6 real-time monitoring housing 4-1, to realize to weary
The precise control of working medium flow in gas disposal EGR 6.
Referring to Fig. 9, in groove type solar collection heat generating system of the present invention, described weary gas disposal EGR
6 include gs-oil separator 6-1, return line 6-2, condenser 6-3, cooling water circulation pipeline and fluid reservoir 6-5;In described weary gas
Process and scavenge oil pump 6-8 is set in the return line 6-2 in EGR 6;Cooling in described weary gas disposal EGR
Cooling tower 6-4 is set in water circulation pipe, connects in cooling tower and cooling water pump 6-6 is installed on the inlet pipeline of condenser;
Liquid freon working medium pump 6-7 is arranged on the drain pipe road of described weary gas disposal EGR fluid reservoir.
Referring to Fig. 9, Figure 10, described gs-oil separator 6-1 is the barrel being vertically arranged, upper in gs-oil separator 6-1
The gas mixture import 6-1-1 of portion's setting connection decompressor weary gas outlet, the bottom of gs-oil separator 6-1 is communicated with oil return
The oil drain out 6-1-7 of pipeline 6-2, the fluid isolated flows back to the lubricating oil feed mechanism of decompressor through return line 6-2, in oil
The top of gas separating device 6-1 is provided with gas outlet 6-1-2, and gas outlet 6-1-2 connects condenser 6-3 entrance through pipeline;Described
Condenser 6-3 also with cooling water circulation pipeline connection, be provided with liquid outlet in condenser 6-3 bottom, liquid outlet is through pipeline even
Meet fluid reservoir 6-5, the outlet of described fluid reservoir 6-5 enters through the liquid freon working medium that drain pipe road connects heat exchange vaporizer 4
Mouth 4-5;First separation section and secondary separation section are set in described gs-oil separator 6-1 from top to bottom, in first separation section simultaneously
Row's setting is several to separate flap 6-1-3, and the described flap 6-1-3 that separates is fixed on gs-oil separator inwall by support bar 6-1-4
On;It is provided with more than two-layer obconic separating bucket 6-1-6 in secondary separation section, in separating bucket 6-1-6, be provided with normal cone
The separation cone 6-1-5 of shape, separates cone 6-1-5 top and is provided with gas passage, separating bucket 6-1-6 and separation cone 6-1-5 are by waveform
Plate is made.Because the present invention is provided with first separation section and secondary separation section in gs-oil separator 6-1, enter gs-oil separator
The oil gas mixture priority of 6-1 is being rubbed through multiple impacts through the separation of first separation section, secondary separation section, gas mixture
After wiping, fluid flows under the influence of gravity into gs-oil separator 6-1 bottom, is discharged by oil drain out 6-1-7;The freon gass isolated
Body is up in gs-oil separator 6-1, and discharges through gas outlet 6-1-2, after entering back into condenser 6-3 and cooling water heat exchange
Be converted to liquid and enter fluid reservoir 6-5, the therefore gs-oil separator 6-1 of the present invention can achieve oil gas without additional power device
It is completely separated, good separating effect, save energy.