CN105723162B - Sun heat utilization system - Google Patents

Sun heat utilization system Download PDF

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Publication number
CN105723162B
CN105723162B CN201480057971.8A CN201480057971A CN105723162B CN 105723162 B CN105723162 B CN 105723162B CN 201480057971 A CN201480057971 A CN 201480057971A CN 105723162 B CN105723162 B CN 105723162B
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CN
China
Prior art keywords
heat
collector
temperature
temperature sensor
storage tank
Prior art date
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CN201480057971.8A
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Chinese (zh)
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CN105723162A (en
Inventor
小粥正登
市野义裕
稻垣元巳
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Yazaki Energy System Corp
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Yazaki Energy System Corp
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Publication date
Priority to JP2013-219907 priority Critical
Priority to JP2013219907A priority patent/JP6232252B2/en
Application filed by Yazaki Energy System Corp filed Critical Yazaki Energy System Corp
Priority to PCT/JP2014/078257 priority patent/WO2015060405A1/en
Publication of CN105723162A publication Critical patent/CN105723162A/en
Application granted granted Critical
Publication of CN105723162B publication Critical patent/CN105723162B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D11/00Central heating systems using heat accumulated in storage masses
    • F24D11/002Central heating systems using heat accumulated in storage masses water heating system
    • F24D11/003Central heating systems using heat accumulated in storage masses water heating system combined with solar energy
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00Details
    • F24D19/10Arrangement or mounting of control or safety devices
    • F24D19/1006Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1009Arrangement or mounting of control or safety devices for water heating systems for central heating
    • F24D19/1012Arrangement or mounting of control or safety devices for water heating systems for central heating by regulating the speed of a pump
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00Details
    • F24D19/10Arrangement or mounting of control or safety devices
    • F24D19/1006Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1009Arrangement or mounting of control or safety devices for water heating systems for central heating
    • F24D19/1042Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses solar energy
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S50/00Arrangements for controlling solar heat collectors
    • F24S50/40Arrangements for controlling solar heat collectors responsive to temperature
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S80/00Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
    • F24S80/30Arrangements for connecting the fluid circuits of solar collectors with each other or with other components, e.g. pipe connections; Fluid distributing means, e.g. headers
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/20Solar thermal
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

A kind of hold over system (1), equipped with:Solar energy heat collector (11), heat storage tank (12), heat-collecting pump (14), multiple heat collector temperature sensors (15), heat storage tank temperature sensor (16) and control panel (17).Solar energy heat collector (11) has multiple solar thermal collector groups (11a to 11c), each solar thermal collector group is made of the one or more solar thermal collectors for heating thermal medium by collecting sunlight, and multiple heat collector temperature sensors (15) are arranged to more than two solar thermal collector groups in multiple solar thermal collector groups (11a to 11c).During the time that heat-collecting pump (14) stops, if the average value of the temperature difference between the regenerator temperature detected by heat storage tank temperature sensor (16) and each thermal medium temperature detected by multiple heat collector temperature sensors (15) is less than T1 DEG C and a part for temperature difference is equal to or more than T1 DEG C, control panel (17) is so that heat-collecting pump (14) runs the predetermined time.

Description

Sun heat utilization system
Technical field
The present invention relates to hold over systems as a kind of such as sun heat utilization system.
Background technology
A kind of sun heat utilization system has been proposed, wherein thermal medium is supplied to solar energy heat collector, is then led to The heat crossed using the thermal medium heated by collected sunlight come the cold water in heat storage slot, and thereby will so heated Water is supplied to house etc. (referring to patent document 1 and 2).
In such sun heat utilization system, thermal medium is set to recycle by transfer tube.When in solar energy heat collector Thermal medium temperature and heat storage tank in regenerator temperature between difference when becoming first predetermined value or more, pump startup, and when should The temperature difference becomes equal to or when less than the second predetermined value smaller than first predetermined value, and pump stops.
Reference listing
Patent document
Patent document 1:JP-A-63-213763
Patent document 2:JP-A-63-207951
Invention content
Technical problem
In the sun heat utilization system, the temperature for accurately measuring the thermal medium supplied from solar energy heat collector is very heavy It wants.However, in the sun heat utilization system of the prior art, it is intended to the attachment positions according to temperature sensor and differently examines The temperature of thermal medium in shoot the sun energy heat collector.Particularly, the temperature sensor in solar energy heat collector is mounted on In the case of at return pipe, which is used to thermal medium being supplied to heat storage tank side, the temperature of thermal medium from solar thermal collector The detected value of degree is intended to different according to attachment positions.
Not only in the case where temperature sensor is mounted at return pipe, but also too due to such as solar energy heat collector As the pollution of positive energy heat collector the reason of various types, the detected value variation of the temperature of thermal medium.
In the case of being secured to the relatively low part of temperature of thermal medium in temperature sensor, the temperature difference is less likely to become It is more than one predetermined value.To according to the initial temperature of thermal medium, although temperature difference is first predetermined value or more, it is also possible to generate The case where pump is not run and therefore collecting efficiency deteriorates.
For example, using in accumulation of heat thermal medium or heat storage tank heat to operate the sun heat utilization system of other devices, with And by the sun heat utilization system of the hot water supply being accumulated in heat storage tank to house etc., generally produce this problem.
The present invention is realized in order to solve this problem of the prior art, and the object of the present invention is to provide one kind It can realize the sun heat utilization system of the raising of collecting efficiency.
Solution to problem
Sun heat utilization system according to aspects of the present invention is constituted by include following by:Heat collector, the collection hot charging It sets and collects sunlight to heat thermal medium;Heat storage tank, the heat storage tank import the thermal medium heated by the heat collector, and And by heat storage in the heat storage tank;Pump, the pump make the thermal medium be followed again via the heat collector from the heat storage tank Ring is to the heat storage tank;Multiple first temperature sensors, each first temperature sensor detection are added by the heat collector The temperature of the thermal medium of heat;Second temperature sensor, the second temperature sensor detect the accumulation of heat temperature in the heat storage tank Degree;And control device, in the regenerator temperature detected by the second temperature sensor and by the multiple first temperature The average value of difference between the temperature for the thermal medium that each sensor in degree sensor is detected is equal to or more than first In the case of predetermined value, which is equal to or less than in the average value than described first for making the pump operation In the case of the small second predetermined value of predetermined value, which stops the pump, wherein the heat collector include it is multiple too It is positive can heat collector group, each solar thermal collector group is by heating one or more of the thermal medium for collecting sunlight A solar thermal collector is constituted, and the multiple first temperature sensor is supplied in the multiple solar thermal collector group At least two solar thermal collector groups it is pre- to be less than described first in the average value and under the halted state of the pump In the case that a part for definite value and the difference is equal to or more than the first predetermined value, the control device makes the pump transport The row predetermined time.
According to sun heat utilization system according to the present invention, the regenerator temperature detected by second temperature sensor with by A part for difference between the temperature for the thermal medium that each first temperature sensor in multiple first temperature sensors is detected In the case of equal to or higher than first predetermined value, make the pump operation predetermined time.By doing so, stirring heat by the operation of pump Medium.As a result, even if under the halted state of pump, the temperature of thermal medium it is inhomogenous in heat collector, also by stirring so that The temperature of thermal medium in heat collector is uniform.Thus, it is possible to inhibit the attachment positions due to the first temperature sensor and cause The occurrence frequency for the phenomenon that cannot carrying out original thermal-arrest.Therefore, it is possible to realize the raising of collecting efficiency.
In sun heat utilization system according to aspects of the present invention, it is preferable that by the multiple first temperature sensing The temperature for the thermal medium that first temperature sensor in device is detected with by the multiple first temperature sensor The temperature of the thermal medium that is detected of other first temperature sensors other than one first temperature sensor Average value specified value more than in the case of, the control device judge one first temperature sensor or it is described too The solar thermal collector group that one first temperature sensor is provided in positive energy heat collector group is in abnormality.
According to the sun heat utilization system so constructed, in the temperature of the thermal medium detected by first temperature sensor Degree with it is more than the average value specified value of the temperature of the thermal medium detected by other first temperature sensors in the case of, sentence Determine be provided with first temperature sensor one in one first temperature sensor or solar thermal collector group Solar thermal collector group is in abnormality.In this regard, be with the difference of average value specified value or more situation example be pass The failure of sensor, the pollution of the panel surface of heat collector, flow path obstruction etc..It is vacuum tube type in each solar thermal collector In the case of, the damage of vacuum tube is provided as example.To as appearance when detected value, make and be abnormal The judgement of state.
Average value is not limited to initial average output value, but conceptive includes to be worth as obtained from further calculating average value, That is, from the value of average value.
Advantageous effect of the invention
In accordance with the invention it is possible to provide a kind of sun heat utilization system, which can realize collection thermal effect The raising of rate.
Description of the drawings
Fig. 1 is the figure for the schematic configuration for illustrating hold over system according to an embodiment of the invention.
Fig. 2 is the figure for the detailed configuration for illustrating solar energy heat collector shown in FIG. 1.
Fig. 3 be illustrate according to this embodiment control panel to the figure of the control of pump.
Fig. 4 is the flow chart for illustrating the control method of hold over system according to this embodiment.
List of reference signs
1 hold over system (sun heat utilization system)
11 solar energy heat collectors (heat collector)
The more a solar thermal collector groups of 11a to 11c
11a1 is to 11a5,11b1 to 11b5,11c1 to 11c5 solar thermal collectors
To pipe before 11d
11e1 to 11e3 branches forward direction pipe
11f return pipes
11g1 is to 11g3 branches return pipe
12 heat storage tanks
13 collection hot flowpaths
14 heat-collecting pumps (pump)
A heat collector temperature sensor (multiple first temperature sensors) more than 15
16 heat storage tank temperature sensors (second temperature sensor)
17 control panels (control device)
Specific implementation mode
Hereinafter, description of the drawings will be based on according to a preferred embodiment of the invention.Fig. 1 be illustrate it is according to the present invention The figure of the schematic configuration of the hold over system of embodiment.As shown in Figure 1, hold over system 1 is by using too according to this embodiment Positive heat and accumulation of heat, and include:Solar energy heat collector (heat collector) 11, heat storage tank 12, collection hot flowpath 13 and heat-collecting pump (pump) 14.
Solar energy heat collector 11 heats thermal medium by collecting sunlight, also, for example, mounted on may such as receive Collect at position as the upper surface on sunlight and the roof with gradient.Use the works such as water, anti-icing fluid, aqueous solution of propylene glycol For thermal medium.
Heat storage tank 12 imports the thermal medium heated by solar energy heat collector 11, and wherein by heat storage.Heat storage tank 12 be the slot for thermal medium to be stored therein.Heat storage tank 12 can be configured to accumulate the heat so imported using heat-storing material The heat of medium.Heat storage tank 12 is attached to the heat utilization device (for example, absorption cooling and warming water machine) operated using heat.It is accumulated in Heat in heat channel 12 is used by heat utilization device.
In the case where heat storage tank 12 accumulates heat using heat-storing material, although for example heat-storing material will be used as by magnesia, It is that heat-storing material is without being limited thereto.In addition, thermal medium be water and heat storage tank 12 be the slot for water to be stored therein feelings Under condition, heat storage tank 12 may be used as so-called hot water storage tank, to which house etc. is arrived in hot water supply.In addition, heat storage tank 12 can be with It is the type equipped with heat exchanger.
It is for making thermal medium be circulated again into accumulation of heat via solar energy heat collector 11 from heat storage tank 12 to collect hot flowpath 13 The pipe of slot 12.In collecting hot flowpath, by from heat storage tank 12 sunward can the flow path of heat collector 11 be known as the first collection hot flowpath 13a, and the second collection hot flowpath 13b will be known as from solar energy heat collector 11 towards the flow path of heat storage tank 12.
Heat-collecting pump 14 is arranged at the first collection hot flowpath 13a of collection hot flowpath 13, and serves as making thermal medium from storage Heat channel 12 is circulated again into the driving source of heat storage tank 12 via solar energy heat collector 11.
In addition, the hold over system 1 in embodiment includes:Multiple heat collector temperature sensor (multiple first temperature sensing Device) 15, heat storage tank temperature sensor (second temperature sensor) 16 and control panel (control device) 17.
Each sensor in multiple heat collector temperature sensors 15 detects the heat heated by solar energy heat collector 11 The temperature of medium, and signal corresponding with the temperature of thermal medium is transmitted to control panel 17.Heat storage tank temperature sensor 16 is examined The temperature (regenerator temperature in heat storage tank 12) of the thermal medium in heat storage tank 12 is surveyed, and by letter corresponding with the temperature of thermal medium Number it is transmitted to control panel 17.
Control panel 17 includes CPU (central processing unit).CPU controls entire hold over system 1.Particularly, in the embodiment In, temperature based on the thermal medium detected by multiple heat collector temperature sensors 15 and by 16 institute of heat storage tank temperature sensor The regenerator temperature of detection, control panel 17 control heat-collecting pump 14.
Fig. 2 is the figure for the detailed configuration for illustrating solar energy heat collector 11 shown in FIG. 1.As shown in Fig. 2, solar energy collection Thermal 11 is reversed return water type heat collector, and includes multiple (three) solar thermal collector group 11a to 11c.
Multiple solar thermal collector group 11a to 11c are respectively by multiple (five) solar thermal collector 11a1 to 11a5,11b1 It is constituted to 11b5 and 11c1 to 11c5.Multiple solar thermal collectors import thermal medium parallel, and to pass through the sun of collection The mode of light heating thermal medium heats thermal medium.
More specifically, other than solar thermal collector group 11a to 11c, solar energy heat collector 11 further include before to Before pipe 11d, branch to pipe 11e1 to 11e3, return pipe 11f and branch return pipe 11g1 to 11g3.
Forward direction pipe 11d imports thermal medium from heat storage tank 12.It is combined to pipe 11e1 to 11e3 in their at one end before branch To preceding to pipe 11d, and the thermal medium supplied from forward direction pipe 11d is transferred to solar thermal collector group 11a to 11c respectively.
Particularly, have to pipe 11e1 before the first branch before being attached to one end of pipe 11d and being attached to the first solar energy The other end of heat collector group 11a.Have to pipe 11e2 before second branch before being attached to one end of pipe 11d and being attached to second too The other end of positive energy heat collector group 11b.It is arranged in parallel to before pipe and the first branch to pipe 11e1 before second branch.Before third branch Have to pipe 11e3 before being attached to one end of pipe 11d and the other end for being attached to third solar thermal collector group 11c.Third point Zhi Qianxiang, which is managed, to be arranged in parallel with before the first and second branches to pipe 11e1,11e2.
In addition, with before other branches to pipe 11e2,11e3 compared with, before the first branch to one end of pipe 11e1 be attached to before to The part of the nearside (that is, close to 12 side of heat-collecting pump 14 and heat storage tank) of pipe 11d.It is attached to one end of pipe 11e3 before third branch The end of forward direction pipe 11d.To the middle part of pipe 11d (that is, before the first branch before being attached to one end of pipe 11e2 before second branch To the portion between pipe 11e3 and the tie point of forward direction pipe 11d before to the tie point and third branch of pipe 11e1 and forward direction pipe 11d Point).
Further, since the first solar thermal collector group 11a includes multiple (five) solar thermal collector 11a1 to 11a5, institute To be branched off into multiple (five) pipes at another side to pipe 11e1 before the first branch, to which thermal medium concurrently be supplied respectively To solar thermal collector 11a1 to 11a5.Also, since the second solar thermal collector group 11b includes multiple (five) solar energy collection Hot device 11b1 to 11b5, so multiple (five) pipes are branched off at another side to pipe 11e2 before the second branch, thus will be hot Medium is concurrently supplied to solar thermal collector 11b1 to 11b5 respectively.Similarly, due to third solar thermal collector group's 11c packets Multiple (five) solar thermal collector 11c1 to 11c5 are included, so being branched off at another side to pipe 11e3 before third branch more A (five) pipes, to which thermal medium to be concurrently supplied to solar thermal collector 11c1 to 11c5 respectively.
The thermal medium of heating is discharged to 12 side of heat storage tank by return pipe 11f.Branch return pipe 11g1 to 11g3 they It is attached to return pipe 11f at the other end, and the thermal medium supplied from solar thermal collector group 11a to 11c is transferred to respectively Return pipe 11f.
Specifically, the first branch return pipe 11g1 has one end and the combination for being attached to the first solar thermal collector group 11a To the other end of return pipe 11f.Second branch return pipe 11g2 have be attached to the second solar thermal collector group 11b one end and It is attached to the other end of return pipe 11f.Second branch's return pipe and the first branch return pipe 11g1 are arranged in parallel.Third branches back to Water pipe 11g3, which has, to be attached to one end of third solar thermal collector group 11c and is attached to the other end of return pipe 11f.Third point Branch return pipe and first and second branch return pipe 11g1,11g2 are arranged in parallel.
In addition, the other end of the first branch return pipe 11g1 is attached to the end of return pipe 11f.With other branch's return pipes 11g1,11g2 are compared, and the other end of third branch return pipe 11g3 is attached to the part of nearside (that is, close to 12 side of heat storage tank). The other end of second branch return pipe 11g2 is attached to the middle part of return pipe 11f (that is, the first branch return pipe 11g1 and return water Part between the tie point and third branch return pipe 11g3 and the tie point of return pipe 11f of pipe 11f).
Further, since the first solar thermal collector group 11a includes multiple (five) solar thermal collector 11a1 to 11a5, institute To be branched off into multiple (five) pipes at the first branch return pipe 11g1 at one end side, to be collected parallel respectively from solar energy collection The thermal medium of hot device 11a1 to 11a5.Also, since the second solar thermal collector group 11b includes multiple (five) solar energy heatings Device 11b1 to 11b5, so the second branch return pipe 11g2 is branched off into multiple (five) pipes at side at one end, to collect parallel Respectively from the thermal medium of solar thermal collector 11b1 to 11b5.Similarly, since third solar thermal collector group 11c includes more A (five) solar thermal collector 11c1 to 11c5, so being branched off at another side to pipe 11g3 before third branch multiple (five) pipes, to collect the thermal medium respectively from solar thermal collector 11c1 to 11c5 parallel.
According to such construction, each solar thermal collector group in multiple solar thermal collector group 11a to 11c leads parallel Enter thermal medium, and heats thermal medium.
The construction of solar energy heat collector 11 is not limited to construction shown in Fig. 2, and can be arranged to for example return with direct The pipe of water type connects.Selectively, solar energy heat collector can be configured to include vacuum tube type solar thermal collector.Especially Ground, in the case where solar energy heat collector 11 is vacuum tube type, of course, multiple solar thermal collector 11a1 to 11a5, Each solar thermal collector in 11b1 to 11b5,11c1 to 11c5 is made of the solar thermal collector of vacuum type.
In addition, although multiple solar thermal collector group 11a to 11c respectively include multiple solar thermal collector 11a1 extremely 11a5,11b1 are to 11b5,11c1 to 11c5, and but the invention is not restricted to this, and in multiple solar thermal collector groups it is each too Positive energy heat collector group can be only made of a solar thermal collector.
In above-mentioned solar energy heat collector 11, it is intended to the attachment positions according to heat collector temperature sensor 15, and Differently detect the temperature of thermal medium.In addition, in solar energy heat collector 11, in the surface of solar thermal collector only part It, may be in multiple solar thermal collector group 11a to the temperature difference for generating thermal medium between 11c in the case of pollution.
In consideration of it, in this embodiment, multiple heat collector temperature sensors 15 are supplied to solar thermal collector Group 11a to 11c, as shown in Figure 2.Specifically, the first heat collector temperature sensor 15a is arranged for the first solar energy heating Device group 11a and the outlet side of the first branch return pipe 11g1 being arranged.Second heat collector temperature sensor 15b setting for Second solar thermal collector group 11b and the outlet side of the second branch return pipe 11g2 being arranged.Third heat collector temperature sensing The outlet side in the third branch return pipe 11g3 being arranged for third solar thermal collector group 11c is arranged in device 15c.
The present invention is not limited to multiple heat collector temperature sensors 15 and solar thermal collector group 11a to 11c to be arranged to one One situation about corresponding to, and for example can two temperature sensors be set to each solar thermal collector group 11a to 11c.It may be selected Ground, the quantity for being secured to the sensor of each solar thermal collector group 11a to 11c can be different from each other.
In addition, in the example shown in figure 2, although multiple heat collector temperature sensors 15 be supplied to it is all Solar thermal collector group 11a to 11c, but the invention is not restricted to this.As long as to more than two solar thermal collector groups (for example, First and second solar thermal collector group 11a, 11b) in each solar thermal collector group be arranged temperature sensor with regard to enough.
Furthermore it is preferred that multiple heat collector temperature sensors 15 are separately positioned on solar thermal collector group 11a to 11c Same position at.Specifically, in the example shown in figure 2, multiple heat collector temperature sensors 15 are separately positioned on branch The outlet side of return pipe 11g1 to 11g3, that is, be arranged at same position.By the way that sensor is arranged identical in this way At position, heat-collecting pump 14 can more accurately be run in the processing being described later on.
Fig. 3 is the figure for illustrating the control that control panel 17 carries out pump according to this embodiment.First, it is assumed that heat-collecting pump 14 Stop.In this state, control panel 17 calculates temperature (the accumulation of heat temperature of the thermal medium detected by heat storage tank temperature sensor 16 Degree) with the temperature of thermal medium that is detected by each heat collector temperature sensor in multiple heat collector temperature sensors 15 Between difference.Then, control panel 17 calculates the average value of temperature difference.
Then, if making the judgement that average value is equal to or more than T1 DEG C (first predetermined value), control panel 17 makes thermal-arrest 14 operation of pump.During the operation of heat-collecting pump 14, if making temperature difference, equal to or less than T2 DEG C than T1 DEG C small, (second is predetermined Value) judgement, then control panel 17 stop heat-collecting pump 14.
Aforementioned operation is the basic control operation of the pump carried out by control panel 17.In addition, in this embodiment, control panel 17 Execute following control.
Fig. 4 is the flow chart for illustrating the control method of hold over system 1 according to this embodiment.Incidentally, it repeats to hold Row processing shown in Fig. 4 is until hold over system 1 stops.
First, it is assumed that heat-collecting pump 14 is in halted state.In this state, as shown in figure 4, control panel 17 calculates temperature difference Average value, and judge whether the average value is T1 DEG C or more (S1).If making the judgement that average value is T1 DEG C or more (S1:It is), then control panel 17 starts the operation (S2) of heat-collecting pump 14.
Then, with reference to the temperature of multiple heat collector temperature sensors 15 detected, control panel 17 judges by multiple collection The temperature for the thermal medium that a sensor in thermal temperature sensor 15 is detected with by multiple heat collector temperature sensing The average value of the temperature for the thermal medium that the other sensors other than one sensor in device 15 are detected whether phase More than poor specified value (S3).In further detail, control panel 17 judges the heat detected by the first heat collector temperature sensor 15a Whether the temperature of medium differs with the temperature of the thermal medium detected by second and third heat collector temperature sensor 15b, 15c It is more than specified value.Then, control panel 17 judgement by the second heat collector temperature sensor 15b thermal mediums detected temperature with Whether the temperature of the thermal medium detected by first and third heat collector temperature sensor 15a, 15c differs specified value or more. Then, control panel judgement is by the temperature of the third heat collector temperature sensor 15c thermal mediums detected and by first and second Whether the temperature for the thermal medium that heat collector temperature sensor 15a, 15b are detected differs specified value or more.If it is determined that no Heat collector temperature sensor 15 has the temperature difference (S3 of specified value or more:It is no), then processing enters step S5.
In contrast, if it is decided that there is the 15 (S3 of heat collector temperature sensor of the temperature difference more than with specified value: It is), then the judgement of control panel 17 has heat collector temperature sensor 15 or the solar thermal collector group of the temperature difference of specified value or more The solar thermal collector group that the heat collector temperature sensor 15 is provided in 11a to 11c is in abnormality, and defeated Go out to indicate display or the sound (S4) of the state.Abnormal example is the heat collector temperature of the temperature difference with specified value or more The failure of sensor 15, the pollution on the solar thermal collector surface of solar energy heat collector 11, flow path obstruction etc..It is each too In the case that positive energy heat collector 11a1 is electron tubes type solar thermal collector to 11a5,11b1 to 11b5 and 11c1 to 11c5, The damage of vacuum tube is provided as example.After output generation, processing enters step S5.
In step s 5, control panel 17 calculates the average value of temperature difference, and judges whether average value is T2 DEG C or less (S5).If it is T2 DEG C of judgement (S5 below to make average value:It is), then control panel 17 stops the operation (S6) of heat-collecting pump 14. Then, processing shown in Fig. 4 enters step S1.On the other hand, if making the judgement (S5 that average value is more than T2 DEG C:It is no), then Processing enters step S2.
If making the judgement (S1 that average value is less than T1 DEG C:It is no), then the judgement of control panel 17 is by heat storage tank temperature sensor The temperature of 16 thermal mediums detected and the heating agent detected by each sensor in multiple heat collector temperature sensors 15 Whether a part for the difference between the temperature of Jie is T1 DEG C or more (S7).
If making the judgement (S7 that no temperature difference is T1 DEG C or more:It is no), then processing enters step S1.In contrast, If making the judgement (S7 that portion temperature difference is T1 DEG C or more:It is), then control panel 17 starts the operation (S8) of heat-collecting pump 14.It is logical It crosses and does so, since thermal medium is stirred (stirred), so even if under the halted state of pump, the temperature of thermal medium is too It is uneven in positive energy heat collector 11, but also the temperature of the thermal medium in solar energy heat collector 11 is uniform.Thus, it is possible to anti- Only occur to lead to the operation without the heat-collecting pump 14 in step S2 due to the attachment positions of heat collector temperature sensor 15 The phenomenon that.
Then, control panel 17 determines whether from having brought into operation over t minutes (S9).Not yet pass by t minutes if made Judgement (S9:It is no), then processing enters step S8.In contrast, if making the judgement (S9 pass by t minutes:It is), then Control panel 17 judges that the stirring of thermal medium is completed, and stops the operation (S6) of heat-collecting pump 14.Then, it is shown in Fig. 4 handle into Enter step S1.
In this way, in hold over system 1 according to this embodiment, what is detected by heat storage tank temperature sensor 16 A part for difference between the temperature of thermal medium and the temperature of the thermal medium detected by each heat collector temperature sensor 15 In the case of being T1 DEG C or more, heat-collecting pump 14 is run during t minutes.By doing so, fortune of the thermal medium by heat-collecting pump 14 It goes and stirs.As a result, even if the temperature of the thermal medium under the halted state of pump is uneven in solar energy heat collector 11 So that the temperature of the thermal medium in solar energy heat collector 11 is uniform by stirring.Thus, it is possible to inhibit due to heat collector The attachment positions of temperature sensor 15 and occurrence frequency the phenomenon that lead to that original thermal-arrest cannot be carried out.Therefore, it is possible to realize The raising of collecting efficiency.
In addition, the thermal medium detected by a sensor in multiple heat collector temperature sensors 15 temperature with The average value of the temperature of the thermal medium detected by the other sensors in multiple heat collector temperature sensors 15 provides In the case that value is above, judges a heat collector temperature sensor 15 or be provided with the heat collector temperature sensor 15 too A heat collector group in positive energy heat collector group 11a to 11c is in abnormality.In this regard, with the difference of average value it is regulation The example of situation more than value be the failure of sensor, solar energy heat collector 11 solar thermal collector surface pollution, stream The obstruction etc. on road.Each solar thermal collector 11a1 to 11a5,11b1 to 11b5 and 11c1 to 11c5 be electron tubes type too In the case of positive energy heat collector, the damage of vacuum tube is provided as example.To, in the case where such detected value occurs, The judgement for the state of being abnormal can be made.
Here, it is briefly summarized in following construction [1] to [2] and lists solar heat according to the present invention using system The feature of the embodiment of system.
[1] a kind of sun heat utilization system, including:
Heat collector (11) collects sunlight to heat thermal medium;
Heat storage tank (12), which imports the thermal medium heated by the heat collector (11), and heat is stored Product is in the heat storage tank;
Pump (heat-collecting pump 14), the pump make the thermal medium from the heat storage tank (12) via the heat collector (11) again It is recycled to the heat storage tank (12);
Multiple first temperature sensors (heat collector temperature sensor 15), each first temperature sensor detection by The temperature of the thermal medium of heat collector (11) heating;
Second temperature sensor (heat storage tank temperature sensor 16), the second temperature sensor detect the heat storage tank (12) Interior regenerator temperature;And
Control device (control panel 17), what is detected by the second temperature sensor (heat storage tank temperature sensor 16) The regenerator temperature with by each sensor institute in the multiple first temperature sensor (heat collector temperature sensor 15) In the case that the average value of difference between the temperature of the thermal medium of detection is equal to or more than first predetermined value, the control device For making the pump (heat-collecting pump 14) run, and it is pre- to be equal to or less than smaller than the first predetermined value second in the average value In the case of definite value, which stops the pump (heat-collecting pump 14), wherein
The heat collector (11) includes multiple solar thermal collector groups (11a to 11c), each solar thermal collector Group is made of the one or more solar thermal collectors for heating the thermal medium for collecting sunlight,
The multiple first temperature sensor (heat collector temperature sensor 15) is supplied to the multiple sun At least two heat collector groups in energy heat collector group (11a to 11c), and
Under the halted state of the pump (heat-collecting pump 14), it is less than the first predetermined value and described in the average value In the case that a part for difference is equal to or more than the first predetermined value, the control device (control panel 17) makes the pump (collection Heat pump 14) the operation predetermined time.
[2] sun heat utilization system described in [1] is constructed, wherein by the multiple first temperature sensor (thermal-arrest Unit temp sensor 15) in the temperature of the thermal medium that is detected of first temperature sensor with by the multiple the Other other than one first temperature sensor in one temperature sensor (heat collector temperature sensor 15) In the case of more than the average value specified value of the temperature for the thermal medium that one temperature sensor is detected, the control dress It sets (control panel 17) and judges one first temperature sensor (heat collector temperature sensor 15) or the solar energy heating A solar thermal collector for being provided with one first temperature sensor (heat collector temperature sensor 15) in device group Group is in abnormality.
By reference to specific embodiment give the present invention detailed description, but those skilled in the art should understand that It is:It can be without departing from the spirit and scope of the present invention to making various modifications and improvements.
The Japanese patent application No.2013-219907 that the application was submitted based on October 23rd, 2013, the patent application Content is incorporated herein by reference.
Industrial applicibility
In accordance with the invention it is possible to be advantageously carried out the raising of collecting efficiency.The present invention for realizing the effect can apply In sun heat utilization system.

Claims (2)

1. a kind of sun heat utilization system, including:
Heat collector, the heat collector collect sunlight to heat thermal medium;
Heat storage tank, the heat storage tank import the thermal medium heated by the heat collector, and by heat storage in the heat storage tank In;
Pump, the pump make the thermal medium be circulated again into the heat storage tank via the heat collector from the heat storage tank;
Multiple first temperature sensors, each first temperature sensor detect the heating agent heated by the heat collector The temperature of Jie;
Second temperature sensor, the second temperature sensor detect the regenerator temperature in the heat storage tank;And
Control device is passed in the regenerator temperature detected by the second temperature sensor with by the multiple first temperature It is predetermined that the average value of difference between the temperature for the thermal medium that each sensor in sensor is detected is equal to or more than first In the case of value, which is equal to or less than more predetermined than described first for making the pump operation in the average value In the case of being worth small second predetermined value, which stops the pump, wherein
The heat collector includes multiple solar thermal collector groups, and each solar thermal collector group is by being used to collect sunlight One or more solar thermal collectors to heat the thermal medium are constituted,
The multiple first temperature sensor is supplied at least two sun in the multiple solar thermal collector group Energy heat collector group, and
Under the halted state of the pump, the part that the first predetermined value and the difference are less than in the average value is equal to Or more than in the case of the first predetermined value, the control device makes the pump operation predetermined time.
2. sun heat utilization system according to claim 1, wherein by one in the multiple first temperature sensor The temperature for the thermal medium that a first temperature sensor is detected with by the multiple first temperature sensor in addition to institute State the average value of the temperature for the thermal medium that other first temperature sensors except first temperature sensor are detected In the case of differing specified value or more, the control device judges one first temperature sensor or the solar energy heating A solar thermal collector group for being provided with one first temperature sensor in device group is in abnormality.
CN201480057971.8A 2013-10-23 2014-10-23 Sun heat utilization system Active CN105723162B (en)

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JP2013219907A JP6232252B2 (en) 2013-10-23 2013-10-23 Solar heat utilization system
PCT/JP2014/078257 WO2015060405A1 (en) 2013-10-23 2014-10-23 Solar heat utilization system

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CN106052162B (en) * 2016-07-01 2017-12-08 顺德职业技术学院 Heat pump and solar water heater combined system forecast Control Algorithm

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