CN209495483U - Tower type solar photo-thermal power station endothermic system - Google Patents
Tower type solar photo-thermal power station endothermic system Download PDFInfo
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- CN209495483U CN209495483U CN201920058317.9U CN201920058317U CN209495483U CN 209495483 U CN209495483 U CN 209495483U CN 201920058317 U CN201920058317 U CN 201920058317U CN 209495483 U CN209495483 U CN 209495483U
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- heat dump
- outlet
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- heat
- tube panel
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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
- Y02E10/44—Heat exchange systems
Abstract
The utility model provides a kind of tower type solar photo-thermal power station endothermic system, which includes low-temperature storage device, circulating pump, heat dump and high temperature storage devices；The heat dump includes heat dump entrance tank, tube panel component and heat dump outlet tank；Low-temperature storage device is connected to heat dump entrance tank by tedge, and heat dump outlet tank is connected to high temperature storage devices by down-comer；Tedge also connects heat dump entrance tank and tube panel component by salt discharging pipe.In the embodiment of this programme, by the way that heat dump entrance tank and tube panel component are connected to tedge, so that in systems down-comer failure when, after remaining heat transfer medium in tube panel component is cooled down by the heat transfer medium in heat dump entrance tank, it is back to low-temperature storage device, to effectively save the volume of heat dump outlet tank, project cost is effectively reduced in final realize, security of system is improved, the purpose of heat resource is comprehensively utilized.
Description
Technical field
The utility model relates to solar energy thermal-power-generating technical fields, inhale more particularly, to a kind of tower type solar photo-thermal power station
Hot systems.
Background technique
Tower type solar photo-thermal power generation technology is the important power generation direction of Solar use.In fused salt heat reservoir, heat absorption
Device is the core equipment of tower type solar photo-thermal power station.If the fused salt in heat absorption tower down-comer occurs blocking or valve occurs
The case where not opening, 565 DEG C of fused salt can overflow in the air from more than 100 meters of height, this not only results in huge economic damage
It loses, while will also result in great safety accident.
The heat source of heat dump comes from the reflected light of tens of thousands of face heliostats, if heat absorption tower down-comer occur blocking or
Not opening occur in decline tube valve, and (density of fused salt is the pressure that the fused salt of the up to a hundred meters of height of twice of water density generates
Will be greatly reduced the reliability of the valve), heliostat need to spend the time of 35s by focus the call away to from heat dump, defocus
In the process due to preventing the overtemperature of tube panel component, heat dump will keep metered flow to flow 35s.Due in tube panel after defocusing
Fused salt to empty and (prevent from condensing) needs and continue for the fused salt in tube panel to be discharged in heat dump outlet tank, traditional solution at present
Scheme is the volume for increasing heat dump outlet tank, can accommodate fused salt amount (the conventional 100MW unit in all heat dumps
For 150m3)。
Heat dump is seated the high heat absorption tower top of rice up to a hundred, so the design requirement of heat dump is compact-sized as far as possible, if
The diameter of the outlet tank increased sufficiently bulky total weight that will affect at the top of heat dump and entire heat dump, since outlet tank is run
High temperature, highly corrosive fused salt environment in, so material generally uses stainless steel costly, and then increase entire heat absorption tower
Construction cost, cost and duration to entire engineering bring very big influence.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of tower type solar photo-thermal power station endothermic systems, to have
Effect reduces the heat transfer medium for being discharged to heat dump outlet tank, and then saves the volume of heat dump outlet tank, and final realize is effectively reduced
Project cost improves security of system, comprehensively utilizes the purpose of heat resource.
In a first aspect, the utility model embodiment provides a kind of tower type solar photo-thermal power station endothermic system, comprising: low
Gentle storage device, circulating pump, heat dump and high temperature storage devices；
The heat dump includes heat dump entrance tank, tube panel component and heat dump outlet tank；
The low-temperature storage device is connected to the heat dump entrance tank by tedge, and the heat dump outlet tank passes through
Down-comer is connected to the high temperature storage devices；
The tedge also passes through salt discharging pipe and connects the heat dump entrance tank and the tube panel component；
When down-comer breaks down in system, in the heat transfer medium and the heat dump entrance tank in the tube panel component
Heat transfer medium mixing after, flow into the low-temperature storage device by the salt discharging pipe, the tedge.
With reference to first aspect, the utility model embodiment provides the first possible embodiment of first aspect,
In, the outlet of the tube panel component includes first outlet and second outlet；The first outlet is connected to the heat dump outlet
Tank, the second outlet are connected to the salt discharging pipe；
The inlet of the tube panel component is provided with inlet valve, and first outlet valve is provided at the first outlet；It is described
Second outlet valve is provided at second outlet；
Salt discharge valve is provided on the salt discharging pipe.
The possible embodiment of with reference to first aspect the first, the utility model embodiment provide the of first aspect
Two kinds of possible embodiments, wherein the exit of the heat dump entrance tank is provided with first flow control valve.
With reference to first aspect, the utility model embodiment provides the third possible embodiment of first aspect,
In, the system also includes compressed air sources；The compressed air source connects the heat dump by second flow control valve and enters
Mouth tank.
The third possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Four kinds of possible embodiments, wherein the first temperature measuring device is provided on the salt discharging pipe.
The third possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Five kinds of possible embodiments, wherein the exit of the heat dump entrance tank is provided with first flow measuring device, the row
Second flow measuring device is provided on salt pipe.
The 4th kind of possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Six kinds of possible embodiments, wherein the system also includes controller, the controller connects the second flow control
Valve, first temperature measuring device.
The 6th kind of possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Seven kinds of possible embodiments, wherein the system also includes warning device, the warning device is connect with the controller.
The 6th kind of possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Eight kinds of possible embodiments, wherein the exit of the heat dump entrance tank is provided with second temperature measuring device, and described
Two temperature measuring devices are connect with the controller.
With reference to first aspect, the utility model embodiment provides the 9th kind of possible embodiment of first aspect,
In, fluid level control valve is provided on the down-comer.
The utility model embodiment bring it is following the utility model has the advantages that
In the utility model embodiment, which includes low-temperature storage device, follows
Ring pump, heat dump and high temperature storage devices；The heat dump includes heat dump entrance tank, tube panel component and heat dump outlet tank；It is low
Gentle storage device is connected to heat dump entrance tank by tedge, and heat dump outlet tank is connected to high temperature storage by down-comer and fills
It sets；Tedge also connects heat dump entrance tank and tube panel component by salt discharging pipe；When down-comer breaks down in system, tube panel
After heat transfer medium in component is mixed with the heat transfer medium in heat dump entrance tank, flows into low temperature by salt discharging pipe, tedge and deposit
Storage device.In the embodiment of this programme, by the way that heat dump entrance tank and tube panel component are connected to tedge, so that in system
When middle down-comer failure, the remaining heat transfer medium in tube panel component is cooled down by the heat transfer medium in heat dump entrance tank
Afterwards, it is back to low-temperature storage device, to effectively reduce the heat transfer medium for being discharged to heat dump outlet tank, and then saves heat absorption
The volume of device outlet tank, final realize are effectively reduced project cost, improve security of system, comprehensively utilize the mesh of heat resource
's.
Other feature and advantage of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood and implementing the utility model.The purpose of this utility model and other advantages are illustrating
Specifically noted structure is achieved and obtained in book and attached drawing.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment is cited below particularly, and
Cooperate appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of diacustic schematic diagram provided by the embodiment of the utility model；
Fig. 2 is a kind of structural representation of tower type solar photo-thermal power station endothermic system provided by the embodiment of the utility model
Figure；
Fig. 3 is the biography that a kind of tower type solar photo-thermal power station endothermic system provided by the embodiment of the utility model works normally
Thermal medium flow graph；
Fig. 4 is that heat transfer is situated between when a kind of tower type solar photo-thermal power station endothermic system provided by the embodiment of the utility model defocuses
Matter flow graph；
Fig. 5 is down-comer failure in a kind of tower type solar photo-thermal power station endothermic system provided by the embodiment of the utility model
When heat transfer medium flow graph；
Fig. 6 is a kind of communication connection of tower type solar photo-thermal power station endothermic system provided by the embodiment of the utility model
Figure；
Fig. 7 is a kind of stream of tower type solar photo-thermal power station endothermic system control method provided by the embodiment of the utility model
Journey schematic diagram.
Icon:
10- low-temperature storage device；20- circulating pump；30- heat dump；31- heat dump entrance tank；32- tube panel component；33- inhales
Hot device outlet tank；40- high temperature storage devices；100- controller；101- second flow control valve；The first temperature of 102- measurement dress
It sets；103- warning device.
Specific embodiment
To keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, below in conjunction with attached drawing to this
The technical solution of utility model is clearly and completely described, it is clear that described embodiment is that the utility model a part is real
Example is applied, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making
Every other embodiment obtained, fall within the protection scope of the utility model under the premise of creative work.
It is seated at present due to heat dump on the heat absorption tower of the high tower type solar photo-thermal power station of rice up to a hundred, due to heat dump
Outlet tank it is sufficiently bulky, increase the diameter of the total weight and entire heat dump at the top of heat dump, and since outlet tank is run
High temperature, highly corrosive fused salt environment in, so material generally uses stainless steel costly, this results in the tower that entirely absorbs heat
Construction cost increase, influence has been acted on behalf of on the cost of entire engineering and duration.
Based on this, a kind of tower type solar photo-thermal power station endothermic system provided by the embodiment of the utility model, by that will inhale
Hot device entrance tank and tube panel component are connected to tedge so that in systems down-comer failure when, by the residual in tube panel component
Heat transfer medium by the heat transfer medium cooling in heat dump entrance tank after, low-temperature storage device is back to, to effectively reduce
It is discharged to the heat transfer medium of heat dump outlet tank, and then saves the volume of heat dump outlet tank, work is effectively reduced in final realize
Journey cost improves security of system, comprehensively utilizes the purpose of heat resource.
For convenient for understanding the present embodiment, first to a kind of tower type solar disclosed in the utility model embodiment
Photo-thermal power station endothermic system describes in detail.
For the volume for effectively reducing heat dump outlet tank, technology provided by the embodiment of the utility model will be in tube panel component
Heat transfer medium drains back in low-temperature storage device by tedge, at this time in view of the maximum temperature that tedge is able to bear, needs
Cooling processing is carried out to heat transfer medium to be discharged.
For convenience of analysis, it is assumed that energy is the function of the linear relationship of time, shown in diacustic as shown in figure 1.Thus
It is found that the energy being gathered on heat dump during normally defocusing gradually decreases, and flow is also held in tube panel
Specified flow (prevents from reducing mass flow discrepancy in the different tube panels that flow may cause, and then causes tube panel overtemperature, so still protecting
Hold specified flow).
By taking heat transfer medium is fused salt as an example, heat-transfer medium temperature of the measuring and calculating to the inlet of heat dump outlet tank is in advance
520℃.Considering that tube panel inlet temperature is 290 DEG C, 8 tube panel head and the tail connect, and the temperature rise in each tube panel is 28.75 DEG C, so
The temperature of each tube panel bottom is as shown in table 1 below:
Table 1
| Tube panel | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Temperature | 290℃ | 318.75℃ | 347.5℃ | 376.25℃ | 405℃ | 433.75℃ | 462.5℃ | 491.25℃ |
The average of the temperature of the bottom fused salt of above-mentioned all tube panels is taken, value is 390 DEG C.It is discharged for guarantee from tube panel
At this time by 290 DEG C in mixing entrance tank of fused salt, final is melted within 400 DEG C (design temperature of tedge) for fused salt
Fused salt in heat dump is discharged to low temperature within 400 DEG C (design temperature of tedge), and then through tedge by the control of salt temperature
In storage device.
Based on this, the utility model embodiment provides a kind of tower type solar photo-thermal power station endothermic system, such as Fig. 2 institute
Show, which includes: low-temperature storage device 10, circulating pump 20, heat dump 30 and high temperature storage devices 40.
Wherein heat dump is the equipment that the solar energy of heliostat reflection is converted to medium thermal energy in heat dump, is specifically included
Heat dump entrance tank 31, tube panel component 32 and heat dump outlet tank 33.Wherein in a possible embodiment, the number of the tube panel component
It can be multiple for measuring, and each tube panel component includes multiple tube panels of multiple head and the tail connections.
Low-temperature storage device is connected to heat dump entrance tank by tedge, and heat dump outlet tank is connected to by down-comer
High temperature storage devices.
Tedge also connects heat dump entrance tank and tube panel component by salt discharging pipe；When event occurs for down-comer in above system
When barrier, after the heat transfer medium in tube panel component is mixed with the heat transfer medium in the heat dump entrance tank, by salt discharging pipe, described
Tedge flows into low-temperature storage device.Wherein the heat transfer medium can be, but not limited to as fused salt (KNO3And NaNO3According to quality point
Number is the mixture of 4:6 ratio mixing).
It is carried out below based on system provided by the embodiment of the utility model, derives the variation of heat dump outlet tank volume.?
In the prior art, the volume of heat dump outlet tank includes at least the minimum volume of heat dump outlet tank itself, heliostat defocused
Heat transfer medium flows into the volume of heat transfer medium in the volume and heat dump tube panel of heat dump outlet tank in journey.Existing skill as a result,
The calculation formula of heat dump outlet tank in art are as follows:
V=V1+Vel*t/ρ+V2(1)
Wherein:
V1Indicate heat dump outlet tank minimum volume, VelIndicate that heat transfer medium flow in heat dump, t indicate that heliostat defocuses
Time, ρ indicate heat transfer medium density, V2Indicate the volume of heat transfer medium in heat dump tube panel.
By taking the tower photo-thermal project of 100MW as an example, the density of heat dump 600MWt, flow 1500kg/s, fused salt are
1900kg/m3, the volume of heat transfer medium is 100m in heat dump3, heat dump outlet tank minimum volume is 20m3(prevent down-comer
Lowest volume needed for liquid level big ups and downs damage down-comer control valve).In unit running process, down-comer or decline tube valve
Mechanical or logic goes wrong when being in close state, and heliostat comes into effect the process that defocuses of lasting 35s, and heat transfer medium exists
Continue to flow 35s in tube panel component and enter in heat dump outlet tank.
When to guarantee to decline blockage, the safety of heat dump, the design volume of heat dump outlet tank is 147.63m3.And it is right
It can be discharged by tedge in the heat transfer medium in the technical solution of the utility model, the tube panel component of heat dump, this
When heat dump outlet tank volume are as follows:
V=V1+Vel*t/ρ (2)
Data in above-mentioned example are substituted into formula (2), show that the volume of heat dump outlet tank only needs 47.63m3。
It can be concluded that, by logic control, the volume of present heat dump outlet tank only needs to set originally from above-mentioned calculating
The 1/3 of the heat dump outlet tank volume of meter, saves a large amount of stainless steel steel, reduces the total weight of heat dump, while reducing and applying
Work difficulty ensure that system operational safety, be greatly saved project cost.
To sum up, in the embodiment of this programme, by the way that heat dump entrance tank and tube panel component are connected to tedge, so that
In systems when down-comer failure, the remaining heat transfer medium in tube panel component is passed through into the heat transfer medium in heat dump entrance tank
After cooling, it is back to low-temperature storage device, to effectively reduce the heat transfer medium for being discharged to heat dump outlet tank, and then is saved
The volume of heat dump outlet tank, final realize are effectively reduced project cost, improve security of system, comprehensively utilize heat resource
Purpose.
In other possible embodiment, the outlet of tube panel component includes first outlet and second outlet.First outlet connects
It is connected to heat dump outlet tank, second outlet is connected to salt discharging pipe.
In normal system operation, the flow graph of the heat transfer medium in the tower type solar photo-thermal power station endothermic system
As shown in figure 3, the heat transfer medium in low-temperature storage device flows into heat dump entrance tank by tedge, then from tube panel component
Entrance enter tube panel component and heated, the heat transfer medium in tube panel component flows into heat dump outlet tank from first outlet,
High temperature storage devices are flowed into using down-comer.Wherein it is not intended as limiting it should be noted that being merely exemplary in Fig. 3
Fixed, tube panel component includes #1 tube panel component and #2 tube panel component, and each tube panel component includes the tube panel of 8 head and the tail connections.
When accident occurs for down-comer in system, cause valve not as the valve of down-comer produces blocking or logic error
When can normally open, heliostat starts to defocus, and has focused illumination since the tube panel component of heat dump is forbearing and conciliatory, in order to prevent heat dump
Tube panel overtemperature, heat dump to keep metered flow flow preset time such as 35s, at this time tower type solar photo-thermal power station inhale
The flow graph of heat transfer medium in hot systems is as shown in figure 4, the heat transfer medium in low-temperature storage device is flowed by tedge
Then heat dump entrance tank enters tube panel component from the entrance of tube panel component and is heated, the heat transfer medium in tube panel component from
First outlet flows into heat dump outlet tank.
System is after the completion of defocusing, since heat dump is to be mounted on up to a hundred meters of high-altitude, and heat transfer medium such as fused salt
Adiabatic condensation temperature is 230 DEG C, and the heat transfer medium in tube panel component must be discharged after defocusing.Tower type solar photo-thermal electricity at this time
The flow graph of the heat transfer medium stood in endothermic system as shown in figure 5, the heat transfer medium in tube panel component is flowed out from second outlet, with
By salt discharging pipe and tedge after heat transfer medium mixing in heat dump entrance tank, into low-temperature storage device.
For the flow direction of effective Heat Transfer Control medium in systems, in a possible embodiment, above-mentioned tube panel component enters
It is provided with inlet valve at mouthful, first outlet valve is provided at first outlet；Second outlet valve, salt discharging pipe are provided at second outlet
On be provided with salt discharge valve.In normal system operation and during defocusing, inlet valve and first outlet valve are opened, and second goes out
Mouth valve and salt discharge valve are closed；When system is after the completion of defocusing, inlet valve and first outlet valve are closed, second outlet valve and salt discharge valve
It opens.
Wherein the inlet valve, first outlet valve and second outlet valve all can be check valve, two-way valve and flow control valves
Any one of.Select flow control valve in the present embodiment, thus effectively in control system heat transfer medium flow velocity.Referring to figure
3-5, above-mentioned inlet valve include #1 flow control valve and #2 flow control valve.
In order to preferably control the heat transfer medium in tube panel component and the heat transfer in heat dump entrance tank after the completion of defocusing
The mixed proportion of medium, or the heat transfer preferably controlled during working normally or defocusing in heat dump entrance tank are situated between
Matter flows into the flow velocity of heat dump tube panel, and the exit of above-mentioned heat dump entrance tank is provided with first flow control valve (in figure not
Show), the rate of heat transfer medium outflow in heat dump entrance tank is controlled to adjust by adjusting the first flow.
In a further embodiment, heat transfer medium in heat dump entrance tank can also be adjusted by compressed air source to flow out
Rate, be based on this, referring to shown in Fig. 3-5, above system further includes compressed air source, which passes through second flow
Control valve connects heat dump entrance tank.Enter the rate of heat dump entrance tank by controlling the air in the compressed air source, comes
Adjust the rate of heat transfer medium outflow in heat dump entrance tank.
In order to effectively monitor whether the heat transfer medium in salt discharging pipe is more than preset temperature, is additionally provided on above-mentioned salt discharging pipe
One temperature measuring device (not shown).First temperature measuring device can be situated between with the heat transfer flowed through in real-time measurement salt discharging pipe
The temperature of matter, can be according to the mixed of the heat transfer medium in the heat transfer medium and heat dump entrance tank in the temperature control zone screen assembly
Composition and division in a proportion example.
In order to realize the mixing ratio to the heat transfer medium in the heat transfer medium and heat dump entrance tank in above-mentioned tube panel component
The automatic control of example, referring to Fig. 6, above system further includes controller 100, which connects second flow control valve 101, the
One temperature measuring device 102.The first temperature value that controller is acquired according to first temperature measuring device adjusts second flow control
Valve processed, when first temperature value is in normal range (NR), control first flow control valve is the first aperture；When first temperature value exists
When early warning range, control first flow control valve increases to the second aperture；When first temperature value is abnormal ranges, control the
Flow control valve increases to third aperture.
Wherein above controller can be Programmable logical controller equipment, such as PLC (Programmable Logic
Controller) or FPGA (Field Programmable Gate Array, field programmable gate array), it is also possible to
Single-chip microcontroller.
In a further embodiment, above system further includes warning device 103, which connect with controller.Example
Such as when the first temperature value of the first temperature measuring device acquisition is abnormal ranges, controls the warning device and alarm, so that
Related personnel is handled in time.
Furthermore, it is contemplated that the temperature of the heat transfer medium in tube panel component is not easy to control, therefore can also be by demarcating in advance
Mode, the mixed proportion of the heat transfer medium in heat transfer medium and heat dump entrance tank in regulation pipe screen assembly first passes through in advance
Experimental data measures at the second outlet of heat dump entrance tank between the temperature of heat transfer medium and the aperture of second flow control valve
Corresponding relationship.Based on this, it is provided with second temperature measuring device at the second outlet of above-mentioned heat dump entrance tank, this second
Temperature measuring device is connect with controller.Second temperature measuring device obtains in real time to flow out at the second outlet of heat dump entrance tank
Heat transfer medium second temperature value, controller searches above-mentioned corresponding relationship according to the second temperature value, determines second flow control
The aperture of valve processed, according to the aperture regulation second flow control valve.
In a further embodiment, heat transfer medium in the mode tuning tube panel component of flow control and suction can also be passed through
The mixed proportion of heat transfer medium in hot device entrance tank is based on this, and the exit of above-mentioned heat dump entrance tank is provided with first-class
Measuring device is provided with second flow measuring device on the salt discharging pipe, passes through the first flow measuring device and second
The collected flow value of measuring device adjusts the aperture of first flow control valve or second flow control valve, and/or adjusts
Save the aperture of second outlet valve.
In system worked well, in order to adjust the decrease speed of heat transfer medium in down-comer, it is arranged on above-mentioned down-comer
There is fluid level control valve.
To sum up, in the utility model embodiment, the heat transfer medium in various ways regulation pipe screen assembly and heat absorption are provided
The mixed proportion of heat transfer medium in device entrance tank controls the temperature of heat transfer medium mixed in salt discharging pipe in tedge
Design temperature is effectively saved so that remaining heat transfer medium is smoothly expelled in low-temperature storage device in tube panel component
The volume of heat dump outlet tank, final realize are effectively reduced project cost, improve security of system, comprehensively utilize heat resource
Purpose.
A kind of tower type solar photo-thermal power station endothermic system based on above-mentioned offer, referring to Fig. 7, the utility model embodiment
A kind of control method of tower type solar photo-thermal power station endothermic system is additionally provided, applied to the system in such as above-described embodiment,
The outlet of tube panel component in the system includes first outlet and second outlet, and second outlet valve is provided at second outlet；The
One outlet is connected to heat dump outlet tank, and second outlet is connected to salt discharging pipe；System further includes compressed air source, compressed air source
Heat dump entrance tank is connected by second flow control valve；The first temperature measuring device is provided on salt discharging pipe.Above method packet
It includes:
Step S101 obtains the first temperature value of the heat transfer medium in the salt discharging pipe of the first temperature measuring device acquisition；
Step S102 adjusts second flow control valve, according to above-mentioned first temperature value with the heat transfer in regulation pipe screen assembly
Heat transfer medium mixed proportion in medium and the heat dump entrance tank.
In the embodiment of this programme, pass through the heat transfer in the heat transfer medium and heat dump entrance tank in regulation pipe screen assembly
The temperature of heat transfer medium mixed in salt discharging pipe is controlled the design temperature in tedge, to make by the mixed proportion of medium
It obtains remaining heat transfer medium in tube panel component to be smoothly expelled in low-temperature storage device, effectively saves the body of heat dump outlet tank
Product, final realize are effectively reduced project cost, improve security of system, comprehensively utilize the purpose of heat resource.
In a possible embodiment, it is provided with first flow measuring device at the second outlet of above-mentioned heat dump entrance tank,
Second flow measuring device is provided on the salt discharging pipe；The above method further include: be currently at flow control mode when detecting
When: obtain the first-class magnitude of first flow measuring device；Obtain the second magnitude of second flow measuring device；According to first
Flow value and second magnitude adjust second flow control valve, with the heat transfer medium and heat dump entrance in regulation pipe screen assembly
Heat transfer medium mixed proportion in tank.It can be by selecting flow control mode, the mode for choosing flow control adjusts tube panel
The mixed proportion of the heat transfer medium in heat transfer medium and heat dump entrance tank in component.
Further, it is provided with second temperature measuring device at the second outlet of heat dump entrance tank, the method is also wrapped
It includes: obtaining the second temperature value of the second temperature measuring device.Controller can show the second temperature value.Or
It is that the temperature of heat transfer medium and second flow control valve at above-mentioned pre-set second outlet are searched according to the second temperature value
Aperture between corresponding relationship, the aperture of second flow control valve is determined, according to the aperture regulation second flow control valve.
Further, for the ease of being handled in time abnormal conditions, system further includes warning device；The method is also
It include: to control the warning device when detecting that the first temperature value is more than preset value and alarm, and send warning message to remote
Process control terminal.When the first temperature value is more than preset value, abnormal ranges are in, at this time and alarm is handled, while by
Remote control terminal record or remotely controlled convenient for the corresponding personnel of remote control terminal.
The control method of tower type solar photo-thermal power station endothermic system provided by the embodiment of the utility model, with above-mentioned implementation
The tower type solar photo-thermal power station endothermic system technical characteristic having the same that example provides, is asked so also can solve identical technology
Topic, reaches identical technical effect.
The meter of the control method of tower type solar photo-thermal power station endothermic system is carried out provided by the utility model embodiment
Calculation machine program product, the computer readable storage medium including storing the executable non-volatile program code of processor, institute
Stating the instruction that program code includes can be used for executing previous methods method as described in the examples, and it is real that specific implementation can be found in method
Example is applied, details are not described herein.
It is apparent to those skilled in the art that for convenience and simplicity of description, the method for foregoing description
Specific work process, can be with reference to the corresponding process in aforementioned system embodiment, and details are not described herein.
The flow chart and block diagram in the drawings show multiple embodiment method and computer programs according to the present utility model
The architecture, function and operation in the cards of product.In this regard, each box in flowchart or block diagram can represent
A part of a part of one module, section or code, the module, section or code is used for comprising one or more
The executable instruction of logic function as defined in realizing.It should also be noted that in some implementations as replacements, being marked in box
Function can also occur in a different order than that indicated in the drawings.For example, two continuous boxes can actually be basic
It is performed in parallel, they can also be executed in the opposite order sometimes, and this depends on the function involved.It is also noted that
The combination of each box in block diagram and or flow chart and the box in block diagram and or flow chart can be used and execute regulation
Function or the dedicated hardware based system of movement realize, or can be using a combination of dedicated hardware and computer instructions
To realize.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.Unless in addition specific
Illustrate, opposite step, numerical expression and the numerical value of the component and step that otherwise illustrate in these embodiments are not intended to limit this
The range of utility model.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.The apparatus embodiments described above are merely exemplary, for example, the division of the unit,
Only a kind of logical function partition, there may be another division manner in actual implementation, in another example, multiple units or components can
To combine or be desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or beg for
The mutual coupling, direct-coupling or communication connection of opinion can be through some communication interfaces, device or unit it is indirect
Coupling or communication connection can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the utility model can integrate in one processing unit,
It can be each unit to physically exist alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in the executable non-volatile computer-readable storage medium of a processor.Based on this understanding, this is practical
Substantially the part of the part that contributes to existing technology or the technical solution can be in other words for novel technical solution
The form of software product embodies, which is stored in a storage medium, including some instructions to
So that computer equipment (can be personal computer, server or the network equipment an etc.) execution the utility model is each
The all or part of the steps of embodiment the method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory
(ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic or disk
Etc. the various media that can store program code.
Finally, it should be noted that embodiment described above, only specific embodiment of the present utility model, to illustrate this
The technical solution of utility model, rather than its limitations, the protection scope of the utility model is not limited thereto, although referring to aforementioned
The utility model is described in detail in embodiment, those skilled in the art should understand that: it is any to be familiar with this skill
The technical staff in art field within the technical scope disclosed by the utility model, still can be to skill documented by previous embodiment
Art scheme modify or can readily occur in variation or equivalent replacement of some of the technical features；And these modifications,
Variation or replacement, the spirit and model of the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution
It encloses, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model is answered described is wanted with right
Subject to the protection scope asked.
Claims (10)
1. a kind of tower type solar photo-thermal power station endothermic system characterized by comprising low-temperature storage device, circulating pump, heat absorption
Device and high temperature storage devices；
The heat dump includes heat dump entrance tank, tube panel component and heat dump outlet tank；
The low-temperature storage device is connected to the heat dump entrance tank by tedge, and the heat dump outlet tank passes through decline
Pipe is connected to the high temperature storage devices；
The tedge also passes through salt discharging pipe and connects the heat dump entrance tank and the tube panel component；
The biography in heat transfer medium and the heat dump entrance tank when down-comer breaks down in system, in the tube panel component
After thermal medium mixing, the low-temperature storage device is flowed by the salt discharging pipe, the tedge.
2. system according to claim 1, which is characterized in that the outlet of the tube panel component includes first outlet and second
Outlet；The first outlet is connected to the heat dump outlet tank, and the second outlet is connected to the salt discharging pipe；
The inlet of the tube panel component is provided with inlet valve, and first outlet valve is provided at the first outlet；Described second
Exit is provided with second outlet valve；
Salt discharge valve is provided on the salt discharging pipe.
3. system according to claim 2, which is characterized in that the exit of the heat dump entrance tank is provided with first-class
Control valve.
4. system according to claim 1, which is characterized in that the system also includes compressed air sources；The compression is empty
Gas source connects the heat dump entrance tank by second flow control valve.
5. system according to claim 4, which is characterized in that be provided with the first temperature measuring device on the salt discharging pipe.
6. system according to claim 4, which is characterized in that the exit of the heat dump entrance tank is provided with first-class
Measuring device is provided with second flow measuring device on the salt discharging pipe.
7. system according to claim 5, which is characterized in that the system also includes controller, the controller connection
The second flow control valve, first temperature measuring device.
8. system according to claim 7, which is characterized in that the system also includes warning device, the warning device
It is connect with the controller.
9. system according to claim 7, which is characterized in that the exit of the heat dump entrance tank is provided with the second temperature
Measuring device is spent, the second temperature measuring device is connect with the controller.
10. system according to claim 1, which is characterized in that be provided with fluid level control valve on the down-comer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920058317.9U CN209495483U (en) | 2019-01-14 | 2019-01-14 | Tower type solar photo-thermal power station endothermic system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920058317.9U CN209495483U (en) | 2019-01-14 | 2019-01-14 | Tower type solar photo-thermal power station endothermic system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556304A (en) * | 2019-01-14 | 2019-04-02 | 中国电力工程顾问集团华东电力设计院有限公司 | Tower type solar photo-thermal power station endothermic system and its control method |
| CN110953737A (en) * | 2019-12-20 | 2020-04-03 | 东方电气集团东方锅炉股份有限公司 | Molten salt heat absorber arrangement method and system for guaranteeing low-load high-flow safe operation |
-
2019
- 2019-01-14 CN CN201920058317.9U patent/CN209495483U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556304A (en) * | 2019-01-14 | 2019-04-02 | 中国电力工程顾问集团华东电力设计院有限公司 | Tower type solar photo-thermal power station endothermic system and its control method |
| CN110953737A (en) * | 2019-12-20 | 2020-04-03 | 东方电气集团东方锅炉股份有限公司 | Molten salt heat absorber arrangement method and system for guaranteeing low-load high-flow safe operation |
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