CN109764560A - A kind of energy resource system and its control method - Google Patents
A kind of energy resource system and its control method Download PDFInfo
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- CN109764560A CN109764560A CN201910018815.5A CN201910018815A CN109764560A CN 109764560 A CN109764560 A CN 109764560A CN 201910018815 A CN201910018815 A CN 201910018815A CN 109764560 A CN109764560 A CN 109764560A
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- 238000012546 transfer Methods 0.000 claims abstract description 19
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- 239000000567 combustion gas Substances 0.000 description 2
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- 239000003507 refrigerant Substances 0.000 description 2
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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
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Abstract
The invention belongs to field of energy utilization, a kind of energy resource system and its control method are disclosed, energy resource system includes: solar thermal collector, water heater and middle heat exchanger, it is connected in the form of heat transfer between solar thermal collector and water heater middle heat exchanger, method comprises determining that the initial temperature of solar thermal collector and the initial temperature of water heater；According to the aperture of the thermally conductive valve of heat exchanger in the control of the initial temperature of solar thermal collector and water heater；Determine the temperature of solar thermal collector and water heater in thermally conductive the first duration of valve opening of middle heat exchanger；The aperture of thermally conductive valve is adjusted according to the temperature variations of solar thermal collector and water heater in thermally conductive the first duration of valve opening of middle heat exchanger.The aperture of thermally conductive valve is adjusted in the present invention, makes heat-conducting medium Rational flow between water heater and energy stores station, to improve the heat utilization ratio of water heater.
Description
Technical field
The present invention relates to technical field of energy utilization, in particular to a kind of energy resource system and its control method.
Background technique
The energy is the resource for being capable of providing energy, and the energy is often referred to thermal energy, electric energy, luminous energy, mechanical energy, chemical energy etc..Heat
Hydrophone refers to makes cold water temperature increase a kind of device for becoming hot water within a certain period of time by various physical principles.Water heater
It needs to absorb heat when cold water is become hot water, generallys use electric energy or water heater is heated in combustion gas.Solar energy heating
Device is also equipment common in family, is mounted on outdoor, absorbs the energy heat production of sunlight.How solar thermal collector is made
Heat rationally passes to water heater, and to improve the heat utilization ratio of water heater, the problem is up for solving.
Summary of the invention
The embodiment of the invention provides a kind of energy resource system and its control methods, to solve how to control solar thermal collector
Heat rationally pass to water heater, to improve the heat utilization ratio problem of water heater.It is some for the embodiment to disclosure
Aspect has a basic understanding, and simple summary is shown below.The summarized section is not extensive overview, nor to determine
Key/critical component or the protection scope for describing these embodiments.Its sole purpose is presented with simple form
Concept, in this, as the preamble of following detailed description.
According to a first aspect of the embodiments of the present invention, a kind of control method of energy resource system, the energy resource system are provided
Include: solar thermal collector, water heater and middle heat exchanger, passes through middle transition heat between the solar thermal collector and water heater
Device is connected in the form of heat transfer, which comprises
Determine the initial temperature of solar thermal collector and the initial temperature of water heater；
According to the aperture of the thermally conductive valve of heat exchanger in the control of the initial temperature of solar thermal collector and water heater；
Determine the temperature of solar thermal collector and water heater in thermally conductive the first duration of valve opening of middle heat exchanger；
Become according to the temperature of solar thermal collector and water heater in thermally conductive the first duration of valve opening of middle heat exchanger
Change the aperture that situation adjusts thermally conductive valve.
In some optional embodiments, it is described according to solar thermal collector and water heater middle heat exchanger thermally conductive valve
Temperature variations when opening the first duration adjust the aperture of thermally conductive valve, comprising:
Design factor k, k=(T2-T1)/(t1-t2), wherein T1For water heater initial temperature, T2It is water heater in middle conversion
Temperature when thermally conductive the first duration of valve opening of hot device, t1For the initial temperature of solar thermal collector, t2For solar thermal collector
Temperature in thermally conductive the first duration of valve opening of middle heat exchanger；
According to the size of coefficient k and predetermined value, the aperture of the thermally conductive valve of heat exchanger in adjusting.
In some optional embodiments, the size according to coefficient k and predetermined value, the thermally conductive valve of heat exchanger in adjusting
The aperture of door, comprising:
When coefficient k is greater than predetermined value, the aperture of thermally conductive valve is kept；
When coefficient k is less than or equal to predetermined value, increase the aperture of thermally conductive valve.
In some optional embodiments, described according to transition heat in the control of the initial temperature of solar thermal collector and water heater
The aperture of the thermally conductive valve of device, comprising:
Calculate the initial temperature t of solar thermal collector1With the initial temperature T with water heater1Difference △ T；
Judge the initial temperature t of solar thermal collector1With the initial temperature T with water heater1Difference △ T whether default
In range；
According to judging result control in heat exchanger thermally conductive valve aperture.
In some optional embodiments, it is described according to judging result control in heat exchanger thermally conductive valve aperture, packet
It includes:
When △ T is in preset range, the aperture of the thermally conductive valve of heat exchanger is 50% in control；
When △ T is not up to preset range, the aperture of the thermally conductive valve of heat exchanger is 0% in control.
In some optional embodiments, the preset range is △ T >=α, wherein 12 α≤18 <.
According to a second aspect of the embodiments of the present invention, a kind of energy resource system is provided, comprising:
Solar thermal collector, for providing heat；
Water heater, for absorbing heat；
Middle heat exchanger is connected between the solar thermal collector and the water heater, and the middle heat exchanger has
For controlling the thermally conductive valve of heat-conducting medium flow；
Controller, the aperture of the thermally conductive valve for controlling the middle heat exchanger.
In some optional embodiments, the controller includes:
First temperature sensor, the initial temperature and solar thermal collector for determining solar thermal collector are in transfer
Temperature when thermally conductive the first duration of valve opening of heat exchanger；
Second temperature sensor, for determine water heater initial temperature and water heater middle heat exchanger thermally conductive valve
Door opens temperature when the first duration；
Timer, the opening time for the thermally conductive valve of heat exchanger in recording；
First control unit, for being led according to heat exchanger in the control of the initial temperature of solar thermal collector and water heater
The aperture of thermal valve door；
Second control unit, for according to solar thermal collector and water heater middle heat exchanger thermally conductive valve opening
Temperature variations when one duration adjust the aperture of thermally conductive valve.
In some optional embodiments, second control unit includes:
First computation subunit is used for design factor k, k=(T2-T1)/(t1-t2), wherein T1It is initially warm for water heater
Degree, T2For temperature of the water heater in thermally conductive the first duration of valve opening of middle heat exchanger, t1For the initial of solar thermal collector
Temperature, t2For temperature of the solar thermal collector in thermally conductive the first duration of valve opening of middle heat exchanger；
First control subelement, for the size according to coefficient k and predetermined value, the thermally conductive valve of heat exchanger in adjusting
Aperture.
In some optional embodiments, the first control unit specifically includes:
Second computation subunit calculates the initial temperature t of solar thermal collector1With the initial temperature T with water heater1Difference
Value △ T；
Judgment sub-unit, for judging the initial temperature t of solar thermal collector1With the initial temperature T with water heater1Difference
Within a preset range whether value △ T；
Second control subelement, the aperture for the thermally conductive valve of heat exchanger in being controlled according to judging result.
Technical solution provided in an embodiment of the present invention can include the following benefits:
By according to the initial temperature of solar thermal collector and water heater control in heat exchanger thermally conductive valve aperture,
According to the temperature variations tune of solar thermal collector and water heater in thermally conductive the first duration of valve opening of middle heat exchanger
The aperture of thermally conductive valve is saved, so that the flow of the heat-conducting medium for heat transfer is reasonable, so that solar thermal collector be made to be capable of providing
Heat appropriate is to water heater.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
It can the limitation present invention.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets implementation of the invention
Example, and be used to explain the principle of the present invention together with specification.
Fig. 1 is the flow chart of the control method of energy resource system shown according to an exemplary embodiment；
Fig. 2 is the structural schematic diagram of energy resource system shown according to an exemplary embodiment；
Fig. 3 is the flow chart of the control method of the energy resource system shown according to another exemplary embodiment；
Fig. 4 is the flow chart of the control method of the energy resource system shown according to another exemplary embodiment；
Fig. 5 is the structural block diagram of the controller of energy resource system shown according to an exemplary embodiment；
Fig. 6 is the structural block diagram of the controller of the energy resource system shown according to another exemplary embodiment；
Fig. 7 is the structural block diagram of the controller of the energy resource system shown according to another exemplary embodiment；
Fig. 8 is the structural schematic diagram of the middle heat exchanger of energy resource system shown according to an exemplary embodiment.
Specific embodiment
The following description and drawings fully show the specific embodiment of this paper, to enable those skilled in the art to reality
Trample them.The part of some embodiments and feature can be included in or replace part and the feature of other embodiments.This
The range of the embodiment of text includes equivalent obtained by the entire scope of claims and all of claims
Object.Herein, term " first ", " second " etc. are used only for distinguishing an element and another element, without requiring
Either imply that there are any actual relationship or sequences between these elements.Actually the first element can also be referred to as second
Element, vice versa.Moreover, the terms "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion,
So that the structure, device or the equipment that include a series of elements not only include those elements, but also including not clear
The other element listed, or further include for this structure, device or the intrinsic element of equipment.Do not limiting more
In the case where, the element that is limited by sentence "including a ...", it is not excluded that include the structure of the element, device or
There is also other identical elements in equipment.Each embodiment herein is described in a progressive manner, each embodiment emphasis
What is illustrated is the difference from other embodiments, and the same or similar parts in each embodiment may refer to each other.
Term " longitudinal direction " herein, " transverse direction ", "upper", "lower", "front", "rear", "left", "right", "vertical", " water
It is flat ", "top", "bottom" "inner", the instructions such as "outside" orientation or positional relationship be to be based on the orientation or positional relationship shown in the drawings, only
It is to be described herein with simplified for ease of description, rather than the device or element of indication or suggestion meaning must have specific side
Position is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In description herein, unless separately
There are regulation and restriction, term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being mechanically connected or being electrically connected
Connect, the connection being also possible to inside two elements can be directly connected, can also indirectly connected through an intermediary, for
For those skilled in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
Herein, unless otherwise indicated, term " multiple " indicates two or more.
Herein, character "/" indicates that front and back object is a kind of relationship of "or".For example, A/B is indicated: A or B.
Herein, term "and/or" is a kind of incidence relation of description object, indicates may exist three kinds of relationships.For example,
A and/or B is indicated: A or B, or, these three relationships of A and B.
A kind of control method of energy resource system, as shown in Fig. 2, energy resource system includes: solar thermal collector 1011, water heater
1021 and middle heat exchanger 11, by middle heat exchanger 11 with heat transfer between solar thermal collector 1011 and water heater 1021
Form connection, as shown in Figure 1, method includes:
The initial temperature of S201, the initial temperature for determining solar thermal collector and water heater；
S202, it is opened according to the thermally conductive valve of heat exchanger in the control of the initial temperature of solar thermal collector and water heater
Degree；
S203, the temperature of solar thermal collector and water heater in thermally conductive the first duration of valve opening of middle heat exchanger is determined
Degree；
S204, the temperature according to solar thermal collector and water heater in thermally conductive the first duration of valve opening of middle heat exchanger
Degree situation of change adjusts the aperture of thermally conductive valve.
In S201, the initial temperature of temperature sensor measurement solar thermal collector and water heater can be passed through.
In S202, the thermally conductive valve of middle heat exchanger for control heat-conducting medium solar thermal collector and water heater it
Between circulation, when the timing of flow rate one of heat-conducting medium, thermally conductive valve opening increases, and the flow of heat-conducting medium increases；It is thermally conductive
Valve opening reduces, and the flow of heat-conducting medium reduces.
In S203, solar thermal collector and water heater can be detected by temperature sensor in the thermally conductive of middle heat exchanger
Temperature when the first duration of valve opening.Optionally, first when a length of 3~5min.When by detecting thermally conductive valve opening the first
When long, the temperature of solar thermal collector and water heater is able to reflect solar thermal collector and hot water in conjunction with the initial temperature of the two
Heat between device exchanges situation.In S204, situation is exchanged according to the heat between solar thermal collector and water heater, is adjusted
The aperture of thermally conductive valve, and then the flow of heat-conducting medium is adjusted, be conducive to heat being transferred to water heater by solar thermal collector.
The embodiment passes through the thermally conductive valve according to heat exchanger in the control of the initial temperature of solar thermal collector and water heater
The aperture of door becomes according to the temperature of solar thermal collector and water heater in thermally conductive the first duration of valve opening of middle heat exchanger
Change the aperture that situation adjusts thermally conductive valve, so that the flow of the heat-conducting medium for heat transfer is reasonable, to make solar thermal collector
Heat appropriate is capable of providing to water heater.It is understood that the modes such as electric energy, combustion gas can be used in water heater when heated
It is heated, cooperates with the heat that solar thermal collector generates, the water in water heater is heated.
Optionally, as shown in Fig. 2, solar thermal collector 1011 by first terminal heat exchanger 1 and middle heat exchanger 11 with
The connection of heat transfer form, water heater 1021 are connected in the form of heat transfer by second terminal heat exchanger 2 with middle heat exchanger 11.The
One terminal heat exchanger 1 is used to absorb the heat of the generation of solar thermal collector 1011 and transfers heat to middle heat exchanger 11, the
Two terminal heat exchangers 2 are passed to water heater 1021 for the heat in heat exchanger 11 in absorbing.In this way, being conducive to
The heat transfer of solar thermal collector 1011 is to water heater 1021.
In one embodiment of the invention, as shown in figure 3, according to solar thermal collector and water heater in middle heat exchanger
Thermally conductive the first duration of valve opening when temperature variations adjust the aperture of thermally conductive valve, comprising:
S301, design factor k, k=(T2-T1)/(t1-t2), wherein T1For water heater initial temperature, T2Exist for water heater
Temperature when thermally conductive the first duration of valve opening of middle heat exchanger, t1For the initial temperature of solar thermal collector, t2For solar energy
Temperature of the heat collector in thermally conductive the first duration of valve opening of middle heat exchanger；
S302, according to the size of coefficient k and predetermined value, the aperture of the thermally conductive valve of heat exchanger in adjusting.
Since there may be losses in transmittance process for the heat in solar thermal collector, for example, in the duct circulate when dissipate
Partial heat is lost, especially winter, heat loss is more serious；Therefore the every rising of the temperature of water heater was once, solar thermal collector
Temperature, which may decline, to be higher than once.When by S301 according to the initial temperature of water heater and solar thermal collector, the first duration
Temperature, the size of design factor k can reflect solar thermal collector to the heat-transfer effect of water heater.Illustratively, T2=34
DEG C, T1=30 DEG C, t1=70 DEG C, t2=62 DEG C, then k=(T2-T1)/(t1-t2)=(34-30)/(70-62)=0.5.In S302
In, by the size of coefficient k and predetermined value, adjust thermally conductive valve opening.Optionally, predetermined value 0.4.In this way, to be used for
The flow of the heat-conducting medium of heat transfer is reasonable, so that solar thermal collector be made to be capable of providing heat appropriate to water heater.
In one embodiment of the invention, according to the size of coefficient k and predetermined value, the thermally conductive valve of heat exchanger in adjusting
The aperture of door, comprising:
When coefficient k is greater than predetermined value, the aperture of thermally conductive valve is kept；
When coefficient k is less than or equal to predetermined value, increase the aperture of thermally conductive valve.
When coefficient k is greater than predetermined value, shows that heat-transfer effect is preferable, keep thermally conductive valve opening；Coefficient k is less than or equal to
When predetermined value, it is more to show that heat scatters and disappears in transmittance process, water heater heating is slower, increases the aperture of thermally conductive valve, makes list
The position time by more heat-conducting mediums, accelerates the heating rate of water heater.
Optionally, when coefficient k is less than or equal to predetermined value, increase the aperture of thermally conductive valve, value added 10%.It is exemplary
, the aperture according to the thermally conductive valve of heat exchanger in the control of the initial temperature of solar thermal collector and water heater is 60%, when
When coefficient k is less than or equal to predetermined value, increase the aperture of thermally conductive valve, value added 10%, then after the aperture adjustment of thermally conductive valve
It is 70%.
Optionally, according to solar thermal collector and water heater in thermally conductive the first duration of valve opening of middle heat exchanger
After temperature variations adjust the aperture of thermally conductive valve, control method further include:
S205, the temperature of solar thermal collector and water heater in thermally conductive the second duration of valve opening of middle heat exchanger is determined
Degree；
S206, according to solar thermal collector and water heater middle heat exchanger the first duration of thermally conductive valve opening to second
Temperature variations when duration adjust the aperture of thermally conductive valve.
Optionally, according to solar thermal collector and water heater middle heat exchanger the first duration of thermally conductive valve opening to
The temperature variations of two durations adjust the aperture of thermally conductive valve, comprising:
Design factor m, m=(T3-T2)/(t2-t3), wherein T2For water heater middle heat exchanger thermally conductive valve opening
Temperature when the first duration, t2For temperature of the solar thermal collector in thermally conductive the first duration of valve opening of middle heat exchanger, T3
For temperature of the water heater in thermally conductive the second duration of valve opening of middle heat exchanger, t3It is solar thermal collector in middle transition heat
Temperature when thermally conductive the second duration of valve opening of device；
According to the size of Coefficient m and predetermined value, the aperture of the thermally conductive valve of heat exchanger in adjusting.
Optionally, according to the size of Coefficient m and predetermined value, the aperture of the thermally conductive valve of heat exchanger in adjusting, comprising:
When Coefficient m is greater than predetermined value, the aperture of thermally conductive valve is kept；
When Coefficient m is less than or equal to predetermined value, increase the aperture of thermally conductive valve.
Illustratively, T3=40 DEG C, T2=34 DEG C, t2=62 DEG C, t2=58 DEG C, then m=(T3-T2)/(t2-t3)=(40-
34)/(62-58)=1.5.
Optionally, second when a length of 7~8min.The heating rate of water heater increases as time increases, when second
The long interval with the first duration can be more shorter compared to the first duration.In this way, keep thermally conductive valve opening reasonable, so that
The flow of heat-conducting medium for heat transfer is reasonable, so that solar thermal collector be made to be capable of providing heat appropriate to water heater.
In one embodiment of the invention, as shown in figure 4, according to the initial temperature control of solar thermal collector and water heater
The aperture of the thermally conductive valve of heat exchanger in system, comprising:
S303, the initial temperature t for calculating solar thermal collector1With the initial temperature T with water heater1Difference △ T；
S304, the initial temperature t for judging solar thermal collector1With the initial temperature T with water heater1Difference △ T whether
In preset range；
S305, according to judging result control in heat exchanger thermally conductive valve aperture.
The temperature difference of solar thermal collector and water heater, heat-transfer capability of the reflection solar thermal collector to water heater.△T
=t1-T1, wherein t1For the initial temperature of solar thermal collector, T1For the initial temperature of water heater.By judging that difference △ T is
It is no to be in preset range, determine the aperture of thermally conductive valve.In this way, transmitting heat appropriate to water heater.
In one embodiment of the invention, according to judging result control in heat exchanger thermally conductive valve aperture, packet
It includes:
When △ T is in preset range, the aperture of the thermally conductive valve of heat exchanger is 50% in control；
When △ T is not up to preset range, the aperture of the thermally conductive valve of heat exchanger is 0% in control.
In one embodiment of the invention, preset range is △ T >=α, wherein 12 α≤18 <.
Illustratively, t1=80 DEG C, T1=20 DEG C, △ T=t1-T1=80-20=60 DEG C, △ T is in preset range,
Then the aperture of the thermally conductive valve of heat exchanger is 50% in control
According to a second aspect of the embodiments of the present invention, a kind of energy resource system is provided, as shown in Figure 2, comprising:
Solar thermal collector 1011, for providing heat；
Water heater 1021, for absorbing heat；
Middle heat exchanger 11, is connected between solar thermal collector 1011 and water heater 1021, and middle heat exchanger 11 has
For controlling the thermally conductive valve of heat-conducting medium flow；
Controller, the aperture for the thermally conductive valve of heat exchanger 11 in controlling.
In an alternative embodiment, solar thermal collector 1011 passes through first terminal heat exchanger 1 and middle heat exchanger
11 are connected in the form of heat transfer, and water heater 1021 is connected in the form of heat transfer by second terminal heat exchanger 2 and middle heat exchanger 11
Logical, first terminal heat exchanger 1 and second terminal heat exchanger 2 all have inlet tube 141 and outlet tube 142 (that is, one group of connecting pipeline
14) group, is connected to by the heat-exchanger rigs of two root canal Lu Yuzhong heat exchangers 11, solar thermal collector 1011, water heater 1021 with
Heat conversion is carried out by respective heat-conducting medium circulation path between middle heat exchanger 11.
In the middle heat exchanger 11 of the embodiment of the present invention, the heat absorbing end 111 of middle heat exchanger 11 is connected to solar energy heating
When device 1011, release end of heat 112 is connected to water heater, and solar thermal collector 1011 is supplied by middle heat exchanger 11 to water heater 1021
To heat.
Optionally, as shown in figure 8, middle heat exchanger 11, comprising:
Heat absorbing end 111, for being connected to solar thermal collector 1011；
Release end of heat 112, for being connected to water heater 1021；
The both ends of undirectional thermal conducting 120 are arranged in undirectional thermal conducting 120, heat absorbing end 111 and release end of heat 112.
In an alternative embodiment, the heat absorbing end 111 of middle heat exchanger 11 specifically uses heat-exchanger rig, e.g., board-like
Heat exchanger, evaporator or heat exchange coil etc..Release end of heat 112 is specifically using heat-exchanger rig, e.g., plate heat exchanger, condenser, or
Person, heat exchange coil etc..
In an alternative embodiment, solar thermal collector 1 and water heater 2 specifically use heat-exchanger rig, e.g., board-like to change
Hot device, evaporator or heat exchange coil etc..
In the present embodiment, undirectional thermal conducting 120 is realized heat (pressure) exchange of heat absorbing end 111 to release end of heat
112.Refrigerant heat exchanger or semiconductor temperature adjustor can specifically be used.
In an alternative embodiment, refrigerant heat exchanger includes evaporator 121, compressor (not shown), condenser 122
Heat-exchanging loop is connected and composed with expansion valve (not shown), four.Middle heat exchanger 11 includes the heat absorption of two adiabatic heat-insulations setting
Chamber 113 and heat release chamber 114；Evaporator 121 and the heat absorbing end 111 of middle heat exchanger 11 are oppositely arranged, and are arranged and are being absorbed heat
In chamber 113；Condenser 122 and the release end of heat 112 of middle heat exchanger 11 are oppositely arranged, and are arranged in heat release chamber 114.
In one embodiment of the invention, as shown in figure 5, energy resource system further includes controller 400；Controller 400 wraps
It includes:
First temperature sensor 410, the initial temperature and solar thermal collector for determining solar thermal collector are in
Temperature when thermally conductive the first duration of valve opening of heat exchanger；
Second temperature sensor 420, for determining initial temperature and water heater the leading in middle heat exchanger of water heater
Temperature when hot the first duration of valve opening；
Timer 430, the opening time for the thermally conductive valve of heat exchanger in recording；
First control unit 440, for according to heat exchanger in the control of the initial temperature of solar thermal collector and water heater
Thermally conductive valve aperture；
Second control unit 450, for being opened according to solar thermal collector and water heater in the thermally conductive valve of middle heat exchanger
Temperature variations when opening the first duration adjust the aperture of thermally conductive valve.
Solar thermal collector and water heater are determined respectively by the first temperature sensor 410 and second temperature sensor 420
Temperature conditions, first control unit 440 controls thermally conductive valve opening according to the initial temperature of solar thermal collector and water heater,
Second control unit 450 adjusts thermally conductive valve opening according to the temperature variations of solar thermal collector and water heater.In this way, making
Thermally conductive valve opening is reasonable, so that the flow of the heat-conducting medium for heat transfer is reasonable, to enable solar thermal collector
Heat appropriate is provided to water heater.
In one embodiment of the invention, as shown in fig. 6, the second control unit 450 includes:
First computation subunit 451 is used for design factor k, k=(T2-T1)/(t1-t2), wherein T1It is initial for water heater
Temperature, T2For temperature of the water heater in thermally conductive the first duration of valve opening of middle heat exchanger, t1For the first of solar thermal collector
Beginning temperature, t2For temperature of the solar thermal collector in thermally conductive the first duration of valve opening of middle heat exchanger；
First control subelement 452, for the size according to coefficient k and predetermined value, the thermally conductive valve of heat exchanger in adjusting
The aperture of door.
Coefficient k is calculated by the first computation subunit 451 in second control unit 450, passes through the first control subelement
452 according to coefficient k compared with predetermined value, the thermally conductive valve opening of centering heat exchanger is adjusted.In this way, making for passing
The flow of the heat-conducting medium of heat is reasonable, so that solar thermal collector be made to be capable of providing heat appropriate to water heater
In one embodiment of the invention, as shown in fig. 7, first control unit 440 specifically includes:
Second computation subunit 441, for calculating the initial temperature t of solar thermal collector1With the initial temperature with water heater
Spend T1Difference △ T；
Judgment sub-unit 442, for judging the initial temperature t of solar thermal collector1With the initial temperature T with water heater1's
Within a preset range whether difference △ T；
Second control subelement 443, according to judging result control in heat exchanger thermally conductive valve aperture.
First control unit 440 calculates △ T by the second computation subunit 441, and whether judgment sub-unit 442 judges △ T
In preset range, the second control subelement 443 controls the aperture of thermally conductive valve according to the result of judgment sub-unit 442.
About above-described embodiment device, wherein each unit executes the concrete mode of operation in the reality in relation to this method
It applies in example and is described in detail, explanation will not be elaborated herein.
The invention is not limited to the structures for being described above and being shown in the accompanying drawings, and can not depart from its model
It encloses and carry out various modifications and change.The scope of the present invention is limited only by the attached claims.
Claims (10)
1. a kind of control method of energy resource system, which is characterized in that the energy resource system includes: solar thermal collector, water heater
With middle heat exchanger, the solar thermal collector is connected in the form of heat transfer between water heater middle heat exchanger, institute
The method of stating includes:
Determine the initial temperature of solar thermal collector and the initial temperature of water heater；
According to the aperture of the thermally conductive valve of heat exchanger in the control of the initial temperature of solar thermal collector and water heater；
Determine the temperature of solar thermal collector and water heater in thermally conductive the first duration of valve opening of middle heat exchanger；
According to the temperature change feelings of solar thermal collector and water heater in thermally conductive the first duration of valve opening of middle heat exchanger
Condition adjusts the aperture of thermally conductive valve.
2. the control method of energy resource system according to claim 1, which is characterized in that it is described according to solar thermal collector and
Temperature variations of the water heater in thermally conductive the first duration of valve opening of middle heat exchanger adjust the aperture of thermally conductive valve, packet
It includes:
Design factor k, k=(T2-T1)/(t1-t2), wherein T1For water heater initial temperature, T2It is water heater in middle heat exchanger
Thermally conductive the first duration of valve opening when temperature, t1For the initial temperature of solar thermal collector, t2It is solar thermal collector in
Temperature when thermally conductive the first duration of valve opening of heat exchanger；
According to the size of coefficient k and predetermined value, the aperture of the thermally conductive valve of heat exchanger in adjusting.
3. the control method of energy resource system according to claim 2, which is characterized in that described according to coefficient k and predetermined value
Size, the aperture of the thermally conductive valve of heat exchanger in adjusting, comprising:
When coefficient k is greater than predetermined value, the aperture of thermally conductive valve is kept；
When coefficient k is less than or equal to predetermined value, increase the aperture of thermally conductive valve.
4. the control method of energy resource system according to claim 1, which is characterized in that it is described according to solar thermal collector and
The aperture of the thermally conductive valve of heat exchanger in the initial temperature control of water heater, comprising:
Calculate the initial temperature t of solar thermal collector1With the initial temperature T with water heater1Difference △ T；
Judge the initial temperature t of solar thermal collector1With the initial temperature T with water heater1Difference △ T whether in preset range
It is interior；
According to judging result control in heat exchanger thermally conductive valve aperture.
5. the control method of energy resource system according to claim 4, which is characterized in that described to be controlled according to judging result
The aperture of the thermally conductive valve of heat exchanger, comprising:
When △ T is in preset range, the aperture of the thermally conductive valve of heat exchanger is 50% in control；
When △ T is not up to preset range, the aperture of the thermally conductive valve of heat exchanger is 0% in control.
6. the control method of energy resource system according to claim 4, which is characterized in that the preset range is △ T >=α,
Wherein 12 α≤18 <.
7. a kind of energy resource system characterized by comprising
Solar thermal collector, for providing heat；
Water heater, for absorbing heat；
Middle heat exchanger is connected between the solar thermal collector and the water heater, and the middle heat exchanger, which has, to be used for
Control the thermally conductive valve of heat-conducting medium flow；
Controller, the aperture of the thermally conductive valve for controlling the middle heat exchanger.
8. energy resource system as claimed in claim 7, which is characterized in that the controller includes:
First temperature sensor, the initial temperature and solar thermal collector for determining solar thermal collector are in middle transition heat
Temperature when thermally conductive the first duration of valve opening of device；
Second temperature sensor, initial temperature and water heater for determining water heater are opened in the thermally conductive valve of middle heat exchanger
Open temperature when the first duration；
Timer, the opening time for the thermally conductive valve of heat exchanger in recording；
First control unit, for the thermally conductive valve according to heat exchanger in the control of the initial temperature of solar thermal collector and water heater
The aperture of door；
Second control unit, for according to solar thermal collector and water heater in the thermally conductive valve opening the first of middle heat exchanger
Temperature variations when long adjust the aperture of thermally conductive valve.
9. energy resource system as claimed in claim 8, which is characterized in that second control unit includes:
First computation subunit is used for design factor k, k=(T2-T1)/(t1-t2), wherein T1For water heater initial temperature, T2
For temperature of the water heater in thermally conductive the first duration of valve opening of middle heat exchanger, t1For the initial temperature of solar thermal collector
Degree, t2For temperature of the solar thermal collector in thermally conductive the first duration of valve opening of middle heat exchanger；
First control subelement, for the size according to coefficient k and predetermined value, the thermally conductive valve of heat exchanger is opened in adjusting
Degree.
10. energy resource system as claimed in claim 8, which is characterized in that the first control unit specifically includes:
Second computation subunit calculates the initial temperature t of solar thermal collector1With the initial temperature T with water heater1Difference △
T；
Judgment sub-unit, for judging the initial temperature t of solar thermal collector1With the initial temperature T with water heater1Difference △ T
Whether within a preset range；
Second control subelement, the aperture for the thermally conductive valve of heat exchanger in being controlled according to judging result.
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