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CN1594990A - Boiler system for heating and hot water supply using solar heat - Google Patents

Boiler system for heating and hot water supply using solar heat Download PDF

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Publication number
CN1594990A
CN1594990A CNA2004100874295A CN200410087429A CN1594990A CN 1594990 A CN1594990 A CN 1594990A CN A2004100874295 A CNA2004100874295 A CN A2004100874295A CN 200410087429 A CN200410087429 A CN 200410087429A CN 1594990 A CN1594990 A CN 1594990A
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China
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heat
water
heating
supply
storage box
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CNA2004100874295A
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CN100366990C (en
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全奭宁
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Priority claimed from KR20030034942A external-priority patent/KR100413118B1/en
Priority claimed from KR20-2003-0029416U external-priority patent/KR200337474Y1/en
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Publication of CN1594990A publication Critical patent/CN1594990A/en
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    • 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
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/70Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers

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  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)

Abstract

In the boiler system for heating and hot water supply using solar heat, low temperature water and high temperature water are separated and stored per temperature in a thermal storage tank and a hot water storage tank by a convection effect of hot water, solar heat absorbed in a heating medium is substantially effectively used in heating of the hot water, and at the same time, an amount of the hot water necessary for heating and hot water supply is sufficiently secured via continuous hot water supply from the thermal storage tank to the hot water storage tank, and heating and hot water supply by solar heat or an auxiliary boiler can be selectively carried out in accordance with internal temperature conditions of a supply convection pipe and a hot water storage tank.

Description

Utilize the boiler system for heating and hot water supply of solar energy
Technical field
The present invention relates to a kind of boiler system for heating and hot water supply that utilizes solar energy, relate to prevent the inner phenomenon that produces air and stagnate of the pipe arrangement that flows at hot medium liquid in more detail, thereby hot medium liquid is flowed glibly so that when more effectively reclaiming the solar energy that is absorbed, can avoid pipe arrangement breakage, thereby make the semi-permanent use of system become possibility in order to remove the numerous and diverse work that air carried out in the pipe arrangement and to prevent to bring by the air thermal expansion; And, the solar energy separation that hot medium liquid is absorbed is stored as low-temp. portion and high-temperature portion, and makes the low-temp. portion side by solar continuous heating, and makes the high-temperature portion side be used in heat and heat water supplying, thereby solar energy can be effectively utilized really in the time of heat and heat water supplying, can supply with warm water constantly; And, even when donkey boiler is worked, to with 70%~90% the warm water of solar energy heating to desired temperature, only a small amount of warm water is concentrated heating according to the less energy that only will be equivalent to 10%~30% with the mode that donkey boiler replenishes so that replenish not enough that part of thermal source rapidly, thereby can prevent unnecessary boiler startup and start caused heating load, and then can make the minimized a kind of boiler system for heating and hot water supply that utilizes solar energy of energy dissipation by this.
Background technology
Usually, the steam generator system that utilizes solar energy is to prevent being purpose by waste and the environmental pollution of using the fossil fuels that natural fuel was brought such as oil, coal or natural gas, utilizing almost is the solar energy of infinite energy source, carrying out indoor heating and warm water supplies with, but, at the universal initial stage, only limit to daytime owing to reclaim the time of solar energy, and cloudy day or rainy day then can't reclaim solar energy, therefore not only can only carry out the recovery of solar energy off and on, and thermal-arrest density is very low again, thereby can't form big energy source.Because above shortcoming, it fails to be extensive use of.But in recent years,, utilize the popularity of the steam generator system of solar energy to improve just day by day along with sun-tracing light also can reclaim the development that solar energy also can be stored the technology of this heat at short notice to high-density.
The aforesaid steam generator system of solar energy that utilizes can be divided into various ways according to its infield and mounting means, and the most representative be form with following structure.The surface is placed the chest with transparency cover by the heat collector that the copper coin or the copper pipe material of black constitutes, and it is arranged on the place of reclaiming solar energy as roof etc. easily, and make to described heat collector inside the circulate pipe arrangement of usefulness of hot medium liquid is formed heat exchanger in the inside of heat storage box, and extend to from this heat exchanger on the pipe arrangement of heat collector, be provided with the circulating pump that is used for circulating thermal medium liquid.
Can use as latent heat heat accumulatings such as water as described hot medium liquid,, also can use the mixed liquor of anti-icing fluid such as mixing ethylene glycol with 50: 50 ratios and water for preventing that winter, hot medium liquid freezed.By carrying out the warm water that heat exchange has absorbed solar energy in described heat storage box storage inside, thereby warm water can be supplied to the place that needs heat and heat water supplying as indoor heating helix tube or heat supply water pipe arrangement etc. with hot medium liquid.
In addition, consider night, cloudy day or rainy day etc. can't use heat collector directly absorb solar energy during, or the solar energy that is only absorbed by heat collector can't be heated to heating or heat supply water the situation of needed temperature with warm water, the boiler and the described heat storage box that will be used for auxiliary heating are set together, thereby guarantee that the warm water of saving at heat storage box maintains uniform temperature.
But, the aforesaid steam generator system that utilizes solar energy in the past, under situation such as have a power failure, hot medium liquid leaks or electric-control system breaks down, can be at the inner air that produces of hot medium liquid pipe arrangement, the inside that this air is stuck in the pipe arrangement that is positioned at the heat collector upper side can occur thus, thereby hot medium liquid is difficult to problems such as transmission glibly.The staff has to finish and climbs to miscellaneous work such as the open heat collector air valve of roof thus.Moreover, if the pucker ﹠ bloat repeatedly by the hot medium liquid that flows in pipe arrangement inside then also can appear in the untimely air of removing, the pipe arrangement that is connected with heat collector is sent out serious problem such as break.
In addition, because the solar energy that is absorbed by hot medium liquid only is stored in the heat storage box, therefore, the warm water that is stored in heat storage box can't be divided into water at low temperature and high-temperature water, thereby, heat storage box only plays the effect of a kind of simple heat energy transmission EGR of the solar energy that the interim storage of portion within it absorbs from heat collector, therefore, has occurred utilizing solar energy to heat and has heated all low-down problem of efficient of warm water.
Particularly at night, cloudy day or rainy day etc. can't use heat collector directly absorb solar energy during, or the solar energy that only absorbs with heat collector is can't be heated to necessary temperature with warm water with heating or heat supply water the time, need to use donkey boiler that the warm water in the heat storage box is heated, and this moment, donkey boiler must heat the warm water integral body of storing in the heat storage box, thereby the heating that can follow warm water brings the problem of energy waste, and moreover, use donkey boiler that the warm water of heat storage box inside is heated to uniform temperature when above, even absorb solar energy heating warm water daytime, also because of being heated to higher temperature again with being heated to the above warm water of uniform temperature, the heat that the low temperature that absorbs from the sun therefore can occur in fact can not be used for the problem of the heating of warm water fully.
Summary of the invention
The present invention proposes for the problem that solves described conventional art existence, its purpose is the boiler system for heating and hot water supply that utilizes solar energy that provides as described below, be that the boiler system for heating and hot water supply of solar energy that utilizes of the present invention is: make the thermal medium that has absorbed solar energy be recycled to the pipe arrangement that extends to heat storage box inside from heat collector, make itself and the water at low temperature that is stored in heat storage box carry out heat exchange, and will be circulated to the thermal medium case through the hot medium liquid of heat exchange, thereby remove the residual air in the pipe arrangement, simultaneously, utilizing circulating pump to push hot medium liquid to the heat collector side resupplies, prevent the inner phenomenon that produces air and stagnate of pipe arrangement that hot medium liquid flows, thus, hot medium liquid is flowed more glibly so that the solar energy that more effectively reclaims hot medium liquid and absorbed the time, can avoid pipe arrangement breakage, thereby make the semi-permanent use of system become possibility in order to remove the numerous and diverse work that air carried out in the pipe arrangement and to prevent to bring by the air thermal expansion.
In addition, another object of the present invention is the boiler system for heating and hot water supply that utilizes solar energy that provides as described below, promptly by supplying with convection tube and changing the water convection tube described heat storage box is connected with the warm water storage box of its upside, and the convection action by warm water in the convection tube separately, water at low temperature and high-temperature water are stored into respectively in heat storage box and the warm water storage box by the temperature height, thereby can continue to utilize the heating of the water at low temperature of solar energy in heat storage box inside, and, only concentrate in warm water storage box and the upper side of supplying with convection tube and to be suitable for the high-temperature water that heat and heat water supplying is used, so that the solar energy that will be absorbed in hot medium liquid is fully effectively utilized when warm water heats, supply with by the warm water that continues, fully guarantee the amount of the warm water that heat and heat water supplying is required from heat storage box to the warm water storage box.
In addition, another purpose of the present invention is the boiler system for heating and hot water supply that utilizes solar energy that provides as described below, the upper end that is about to described supply convection tube is connected in donkey boiler and indoor heating helix tube respectively and when constituting heating system, be stored in the heat of the high-temperature water of described supply convection tube for disposable recovery, the heat-exchanger coil of portion's formation within it also is connected in heat supply water storage box and donkey boiler respectively in the upper end of the Cold water supply pipe of extension, and inside in this heat supply water storage box, setting is connected to be supplied with convection tube and changes the water convection tube so that carry out the auxiliary firing equipment of post bake with the heat of high-temperature water to being stored in warm water in the heat supply water storage box, constitutes hot-water supply system thus.Thereby,, can utilize the heat and heat water supplying of solar energy or donkey boiler selectively according to the internal conditions of supplying with convection tube and heat supply water storage box; Even and under the situation that starts donkey boiler, also can be only to being concentrated heating by a spot of warm water of solar energy heating, replenish not enough that part of thermal source rapidly, thereby can prevent unnecessary boiler startup and start caused heating load, and then energy dissipation is reached minimize by this.
For finishing above-mentioned purpose, in the boiler system for heating and hot water supply that utilizes solar energy of the present invention, the feeding pipe of the hot medium liquid that extends from solar thermal collector is at the inner heat exchanger that forms of heat storage box, and the hot medium liquid reclaim line that extends to solar thermal collector from this heat exchanger is provided with circulating pump, it is characterized in that: on described hot medium liquid feeding pipe and the reclaim line, be respectively arranged with high temperature detecting sensor and low temperature detecting sensor, and on this reclaim line, together be provided with the thermal medium case of storing hot medium liquid with circulating pump; Described heat storage box by being connected in the one upper lateral part the supply convection tube and the opposite side bottom change the water convection tube, be connected with the upper and lower side of warm water storage box respectively, the upper end of this supply convection tube extends to the position that is higher than the warm water storage box, and is connected with donkey boiler with indoor heating helix tube respectively; Extend on the heating recovery tube of supplying with convection tube from described heating solenoid, be provided with circulating pump and three-way magnetic valve, and the auxiliary recovery tube that extends from this three-way magnetic valve is connected in the described following side of changing the water convection tube; In the described supply convection tube, form heat-exchanger coil, and extend to the top of supplying with convection tube, be provided with the three-way magnetic valve that is connected to heat supply water storage box and described donkey boiler in its end side by the Cold water supply pipe; In described heat supply water storage box inside, be provided with by hot water supply pipe and warm water recovery tube and be connected to described supply convection tube and the auxiliary heating arrangements that changes the upper end of water convection tube, and on the heat supply water supplying pipe that a side of heat supply water storage box is extended, be connected with the heat supply water pipe arrangement and the flow rate detection switch that extend from described donkey boiler; In described supply convection tube and heat supply water storage box, be respectively arranged with the temperature sensor of the relevant three-way magnetic valve work of control.
Description of drawings
Fig. 1 is the integrally-built piping diagram of expression steam generator system.
Fig. 2 is the piping diagram of expression steam generator system heating periodic duty state;
Fig. 3 is the piping diagram of expression steam generator system heat supply water periodic duty state.
Among the figure: the 1-heat collector, the 1a-feeding pipe, the 1b-reclaim line, 2-high temperature detecting sensor, the 3-check (non-return) valve, the 4-heat exchanger, the 5-heat storage box, the 6-low water level sensor, 7-low temperature detecting sensor, 8-thermal medium case, 9, the 17-circulating pump, 10-supplies with convection tube, 10a, the 20a-heat-exchanger coil, 10b-assists the heating temperature sensor, 11-warm water storage box, 12-changes the water convection tube, 13-warm water supply pipe, 14-boiler switch, the 15-helix tube that heats, the 16-recovery tube that heats, 18, the 23-three-way magnetic valve, 19-assists recovery tube, the 20-donkey boiler, the 21-pipe arrangement that heats, 22-Cold water supply pipe, 24-heat supply water storage box, the 24a-inflow pipe, 24b-heat supply water supplying pipe, 25-assists firing equipment, 25a-high-temperature water supply pipe, 25b-warm water recovery tube, 26-heat supply water temperature sensor, 27-heat supply water pipe arrangement, the 28-expansion tank, 28a-expansion pipeline, the 28b-overflow pipe, 28c-supplementing water supply pipe, the 29-boiler feed pipe, 30-flow rate detection switch.
The specific embodiment
Below, with reference to accompanying drawing, describe the present invention who reaches described purpose in detail.
Fig. 1 is the expression integrally-built piping diagram that utilizes the boiler system for heating and hot water supply of solar energy of the present invention, as shown in the drawing, the feeding pipe 1a of the hot medium liquid that extends from solar thermal collector 1 is at the heat storage box 5 inner heat exchangers 4 that form, and be provided with the storage that is used for hot medium liquid and the thermal medium case 8 and the circulating pump 9 of circulation from the hot medium liquid reclaim line 1b that this heat exchanger 4 extends to solar thermal collector 1, and on described hot medium liquid feeding pipe 1a and reclaim line 1b, be provided with the temperature of the hot medium liquid of measuring heat collector 1 side respectively and the high temperature detecting sensor 2 and the low temperature detecting sensor 7 of the temperature of the hot medium liquid that flows out from heat exchanger 4.
The described feeding pipe 1a that is connected with heat collector 1 projects to than extending to the bottom again behind the higher position of heat collector 1, and its reason is for preventing that the hot medium liquid that is stored in heat collector 1 inside from falling to feeding pipe 1a side, makes its top not have the space.Only feeding pipe 1a is formed structure as above, just need not to be provided with in addition air valve; Described sensor 8 can play that the expansion that absorbs hot medium liquid separates naturally with contraction and from the hot medium liquid that is come out by heat exchanger 4 and when removing air, replenish the effect of the hot medium liquid of nature consumption, be formed with the discharge air in thermal medium case 8 upper ends and use the space, and on the lid 8a thereon, be formed with the automatic discharge pipe 8b of air.
In addition, be provided with low water level sensor b, under the depleted situation of hot medium liquid, detect low water level thus and inform the information that needs the supplemental heat dielectric fluid with the alarm device that is arranged at steam generator system inside in a side of this thermal medium case 8.
In addition, by be built-in with by hot medium liquid flow the described heat storage box 5 of the heat exchanger 4 that pipe arrangement constitutes by being connected in the one upper lateral part supply convection tube 10 and the opposite side bottom change water convection tube 12, can carry out heat exchange with the warm water storage box 11 of disposed thereon side, and the upper end of described supply convection tube 10 extends to the position that is higher than warm water storage box 11, and connection is arranged on the upper side of warm water storage box 11, and the described upper end of changing water convection tube 12 connects the lower side that is arranged on warm water storage box 11, thereby thereby making the solar energy that is absorbed carry out the convection type circulation is separated into high-temperature portion and low-temp. portion.
That is, the warm water that described supply convection tube 10 will heat up at heat storage box 5 is transferred and is made the heat of warm water concentrate on its upper end of the position that is higher than warm water storage box 11 to top, is used to heat or the high-temperature water of heat supply water thereby play a part to concentrate to preserve; Describedly change warm water that water convection tube 12 will carry out lowering the temperature after the heat exchange and be transferred to heat storage box 5 and heat again; Thereby, by supplying with convection tube 10 and changing water convection tube 12, can separate storage water at low temperature and high-temperature water respectively in heat storage box 5 and warm water storage box 11, simultaneously, can concentrate on the upper end of supplying with convection tube 10 by the high-temperature water that temperature is the highest.
Upper end at supply convection tube 10 with above-mentioned effect, be connected indoor heating helix tube 15 by warm water supply pipe 13 with heating recovery tube 16, connecting donkey boiler 20 by heating pipe arrangement 21 simultaneously, and, extend to the heating recovery tube 16 of supplying with convection tube 10 from described heating helix tube 15 and be provided with circulating pump 17 and three-way magnetic valve 18, and be extended with described auxiliary recovery tube 19, and link to each other with described water convection tube 12 following sides of changing to the lower side of described three-way magnetic valve 18.
In addition, upper lateral part at described supply convection tube 10, be provided with the auxiliary heating temperature sensor 10b that controls the work of three-way magnetic valve 18 according to the internal temperature of supplying with convection tube 10, thereby can be according to from supplying with the temperature value that convection tube 10 is measured, utilize the heating of solar energy selectively and utilize the auxiliary heating of boiler.
In addition, inside at described supply convection tube 10, the Cold water supply pipe 22 that extends from not shown Cold water supply source is arranged in the zigzag shape, form heat exchange solenoid 10a, and, extend to from described heat-exchanger coil 10a on the leading section of the Cold water supply pipe 22 of supplying with convection tube 10 tops, be provided with by inflow pipe 24a and link to each other with heat supply water storage box 24, and the three-way magnetic valve 23 that is connected with described donkey boiler 20 by 27 settings of heat supply water pipe arrangement.
Described heat supply water storage box 24 plays a part storage and flows in the cold water of Cold water supply pipe 22 through supplying with the warm water after convection tube 10 is implemented once heating, and its inside is provided with the auxiliary firing equipment 25 that is connected with the upper end of described supply convection tube 10 and is connected with the described upper end of changing water convection tube 12 by described warm water recovery tube 25b by high-temperature water supply pipe 25a, can the warm water that be stored in heat supply water storage box 24 be heated to the temperature that is suitable for heat supply water with being stored in the high-temperature water of supplying with convection tube 10 upper ends thus.
The auxiliary firing equipment 25 here can be that the firing equipment (gas burner or electric heater etc.) that utilizes other heats water, rather than receives warm water from changing water convection tube 12.
In addition, the side connection in described heat supply water storage box 24 is provided with the heat supply water supplying pipe 24b that is used for warm water is supplied to the appointed place; And on described heat supply water supplying pipe 24b, connect respectively and do not put at donkey boiler 20 inner heat supply water pipe arrangement 27 and the flow rate detection switches 30 that form heat exchange solenoid 20a and extend; And, upper lateral part in described heat supply water storage box 24, be provided with the heat supply water temperature sensor 26 of controlling the work of three-way magnetic valve 23 according to the internal temperature of heat supply water storage box 24, thereby can utilize the heat supply water and the heat supply water that utilizes boiler of solar energy selectively according to the temperature value of measuring from heat supply water storage box 24.
The flow rate detection switch 30 that is arranged on described heat supply water supplying pipe 24b plays following effect, promptly, use for warm water, the tap or the valve that illustrate among the open figure, thereby make warm water under the situation of heat supply water supplying pipe 24b internal flow, thereby contact donkey boiler 20 work that make with contact portion with the electric wire of deflection warm water flow direction; And closing when not having warm water in heat supply water supplying pipe 24b internal flow behind tap or the valve, make electric wire break away from contact portion, thereby end the work of donkey boiler 20.
In addition, be provided be used to identical with common steam generator system absorbs by the rise expansion tank 28 of expansive force of the internal system that produces of the water supply of steam generator system and water temperature on the top of heat supply water storage box 24, and, described expansion tank 28 connects with the expansion pipeline 28a that the high-temperature water supply pipe 25a that extends to auxiliary firing equipment 25 from supply convection tube 10 fuses in the one side, and its opposite side is extending the boiler feed pipe 29 that is used for to steam generator system water supply, and is connected with the described following side of changing water convection tube 12.
In addition, the both sides of described expansion tank 28 connect respectively be provided with when the water that is stored in expansion tank 28 surpasses certain water level can be automatically toward the externally drained overflow pipe 28b of expansion tank 28 be used for supplying with and be equivalent to from the supplementing water supply pipe 28c of expansion tank 28 evaporation water water gagings to described expansion tank 28.
With Fig. 2 and Fig. 3, illustrate in greater detail interactively of the present invention with described structure.In about the explanation of interactively of the present invention, understand in order to help, steam generator system of the present invention is divided into is applicable to heating circulation and is applicable to that heat supply water circulation both of these case describes, and in fact, heating circulation and the circulation of heat supply water are carried out simultaneously, can be simultaneously to indoor heating with for warm water.
Fig. 2 is the piping diagram that steam generator system of the present invention is applicable to the state of heating circulation.As shown in the figure, when absorbing the solar energy heating hot medium liquid with heat collector 1, the temperature value of measuring by high temperature detecting sensor 2 will be higher than the temperature value of measuring by low temperature detecting sensor 7, thereby, send signal by each sensor 2 and 7, circulating pump 9 is started working, so that after having absorbed the hot medium liquid of solar energy and flowing into heat exchanger 4 by feeding pipe 1a from heat collector 1, be recovered to heat collector 1 side by reclaim line 1b again with thermal medium case 8, in this process, the water at low temperature that is stored in heat storage box 5 inside is then flowed in the hot medium liquid heating of heat exchanger 4 inside.
At this moment, on the lid 8a of described thermal medium case 8, upwards be formed with automatic air discharge pipe 8b, thereby, can remove contained air in the hot medium liquid that in heat exchanger 4, circulates at any time.
As mentioned above, when using circulating pump 9 that hot medium liquid is flowed in feeding pipe 1a and heat exchanger 4 and thermal medium case 8 and reclaim line 16, the air that produces in the hot medium liquid flow process just can be removed in the process that flow into thermal medium case 8 automatically, and discharge from the space that the air that is formed at thermal medium case 8 tops is discharged usefulness, moreover, position at the feeding pipe 1a of heat collector 1 side is higher than under the situation of heat collector 1, because described circulating pump 9 resupplies by the form of thermal medium being pushed to heat collector 1 side, therefore the phenomenon that air is arranged appears being detained in feeding pipe 1a that can avoid at hot medium liquid and reclaim line 1b and heat collector 1 inner space.
Thus, can make the circulation of the hot medium liquid that utilizes circulating pump 9 more smooth, thereby can utilize the solar energy that is absorbed in hot medium liquid, more effectively the warm water that is stored in heat storage box 5 is heated, thereby the staff need not to go up in person to heat collector 1 side of being located at the seat top, remove the miscellaneous work of the air of heat collector pipe arrangement inside one by one, and can phenomenons such as the pipe arrangement that is connected with heat collector 1 breaks be taken precautions against in possible trouble pucker ﹠ bloat repeatedly because of the hot medium liquid that flows in pipe arrangement inside.
As mentioned above, when flowing in by the hot medium liquid that has absorbed solar energy that heat exchanger 4 is inner to be continued to heat the warm water of heat storage box 5 inside, because of the temperature of the warm water of heat storage box 5 will continue to rise, thereby the warm water of heat storage box 5 is its upper side temperature is higher than its underpart side temperature, therefore, the high-temperature water of heat storage box 5 upper side flows to warm water storage box 11 by supplying with convection tube 10, to keep the temperature that the temperature that is stored in warm water storage box 11 is higher than heat storage box 5.
In addition, the warm water that is stored in warm water storage box 11 is that its upper side temperature is higher than the lower side temperature too, thereby being concentrated to, the high-temperature water of warm water storage box 11 upper side supplies with convection tube 10 upper side, and the part of the warm water of its underpart side then flows into heat storage box 5 bottoms and heating again by changing water convection tube 12, till sunset, continue to utilize the warm water heating and the circulation of solar energy, and thus, from thermal storage device case 5 to the warm water storage box 11 and supply with convection tube 10 upper ends, past more upper end stores the warm water of high-temperature more successively, can effectively be separated into water at low temperature and high-temperature water.
As mentioned above, work as temperature value that temperature value that high temperature detecting sensor 2 measures and low temperature detecting sensor 7 measure when being similar to by the warm water heating that continues to utilize solar energy, by transmitting the work that signals are ended circulating pump 9, and interrupt the circulation of hot medium liquid from each sensor 2,7.Under the interrupted situation that circulates at hot medium liquid, when the temperature value that high temperature detecting sensor 2 is measured was lower than the temperature value that temperature detection sensor 7 measures, circulating pump 9 is task and carry out the circulation of hot medium liquid again.
As mentioned above, circulation by hot medium liquid, the high-temperature water that concentrates on stream pipe 10 upper ends when supplying with is under the state that is heated to the temperature that is fit to heating, open (ON) with being arranged on indoor boiler switch 14, then the circulating pump 17 that is connected with indoor heating helix tube 15 is started working, warm water flows to indoor supply pipe 15 by warm water supply pipe 13 and realizes heating, and, this warm water that is used to heat flow into and changes water convection tube 12 by heating recovery tube 16 and three-way magnetic valve 18 and auxiliary recovery tube 19.
As mentioned above, flowing into the warm water that changes water convection tube 12 can flow into a large amount of thermal energy consumptions in the early stage at indoor heating and with lower state of temperature.Warm water through changing 12 inflows of water convection tube is supplied to heat storage box 5 by convection action and is heated once more by solar energy at this moment.But, when the rising of the indoor temperature that is caused because of continuing to heat by the temperature of changing the warm water that water convection tube 12 flows into is higher than the temperature of the warm water that is stored in heat storage box 5, can not be supplied to heat storage box 5 by the warm water that changes 12 inflows of water convection tube by its convection action, and be supplied to warm water storage box 11 sides, thereby can prevent that heat storage box 5 temperature inside from rising, and can utilize and heat warm water solar continuously.
In utilizing the process of solar continuous heating, if supply with convection tube 10 internal temperatures be reduced to can't heat supply low temperature, after then auxiliary heating temperature sensor 10b detects this temperature, make donkey boiler 20 and three-way magnetic valve 18 work, thereby, the pipeline of cut-out from heating recovery tube 16 to auxiliary recovery tube 19, simultaneously, make the pipeline of heating recovery tube 16 be directly connected in the upper end of supplying with convection tube 10, make 20 work of donkey boiler to can replenish heat not enough that a part of heat, only will be stored in the warm water of supplying with convection tube 10 inside and be heated to the required temperature of heating, thereby realize the heating circulation.
Promptly, needed temperature is 45 ℃ if heat, then at the night that can't absorb solar energy, even supplying with the temperature of convection tube 10 upper ends is reduced to below 45 ℃, the warm water temperature that is stored in warm water storage box 11 will remain on about 40 ℃, and the heat energy that is stored in heat storage box 5 and warm water storage box 11 between daytime has no the ground of loss by each convection tube 10,12 convection action continues to be concentrated to supply convection tube 10 upper ends, thus, also the temperature of supplying with convection tube 10 upper ends can be maintained about 40 ℃ for a long time during by donkey boiler 20 heating, as long as therefore utilize donkey boiler 20 that warm water is heated about about 5 ℃, just can the required warm water of sustainable supply heating.
As mentioned above, in the temperature of heating required 100%, always storing on the heat top of supplying with convection tube 10 and to be heated to 70~90% temperature required warm water of heating, the heat that therefore only will remainingly be equivalent to 10~30% temperature is by donkey boiler 20 additional getting final product.Promptly by the amount of the warm water of donkey boiler 20 heating and be not equal to the whole warm water water yields that are stored in heat storage box 5 and warm water storage box 11, and only be that heating is required minimum, thereby can significantly reduce the heating load of the warm water that is undertaken by donkey boiler 20, and can prevent the energy waste that the over-running by donkey boiler 20 causes.
In the process of carrying out the aforesaid heating that utilizes donkey boiler 20, because the internal temperature of heat storage box 5 is in lower state because of its convection action, therefore as long as form the condition that can absorb solar energy by heat collector 1, just can absorb solar energy immediately rapidly, can effectively utilize solar energy to carry out the warm water heating, and thus, when the temperature of warm water storage box 11 rises once more, be stored in the high-temperature water of supplying with convection tube 10 upper ends when being heated to the temperature that is fit to heating, auxiliary heating temperature sensor 10b will detect this temperature, end the work of donkey boiler 20, simultaneously by will the heat pipeline connection of recovery tube 16 and auxiliary recovery tube 19 of three-way magnetic valve 18, thereby realize utilizing the heating of solar energy once more.
Fig. 3 is the piping diagram that expression is applicable to steam generator system of the present invention the state of heat supply water circulation.As shown in the figure, the cold water process of supplying with by Cold water supply pipe 22 is arranged in the heat-exchanger coil 10a process of supplying with convection tube 10 inside, absorption is stored in after the heat of supplying with the high-temperature water in the convection tube 10 carries out heating first time, and this warm water through heating is stored in the inside of heat supply water storage box 24 by three-way magnetic valve 23 and inflow pipe 24a.
As mentioned above, be stored in the warm water of heat supply water tank 24 inside, cross the auxiliary firing equipment 25 of its inside by being stored in the flow of hot water of supplying with convection tube 10 leading sections, carry out the heating second time, be heated to the required temperature of heat supply water, warm water as heating is supplied to the place that needs warm water by heat supply water supplying pipe 24b, and the warm water that is used for temperature after the heating of hot water is descended passes through warm water recovery tube 25b from auxiliary firing equipment 25, be re-supplied to and change water convection tube 12 tops, as mentioning in the circulation that heats, flow into the warm water that changes water convection tube 12 tops by different temperatures to flow phenomenon, optionally be supplied to warm water storage box 11 or heat storage box 5, heat again.
As mentioned above, the heating of the warm water of heat supply water storage box 24 is also carried out in the following manner.Promptly, high-temperature water behind the absorption solar energy in the heated supply convection tube 10, flow through the cold water of supplying with in the convection tube 10 by heat-exchanger coil 10a and carry out one-time heating, and offer heat supply water storage box 24, thereby can pass to heat supply water storage box 24 once with concentrating on the solar energy of supplying with convection tube 10, and, being stored in the high-temperature water of supplying with convection tube 10 upper ends flows in the process of auxiliary firing equipment 25 inside, the warm water of secondary heating heat supply water storage box 24 inside, can be sent to storage box 24 with concentrating on the solar energy secondary of supplying with convection tube 10, and, the warm water that is used in warm water heating cooling in auxiliary firing equipment 25 is then by warm water recovery tube 25b with change water convection tube 12 and be recovered in heat storage box 5 or the warm water storage box 11, thereby constitutes the heat supply water circulation that utilizes solar energy of the substantial heating that can utilize solar energy once more.
As mentioned above, utilizing solar energy to carry out in the process of heat supply water, even warm water is supplied to heat supply water supplying pipe 24b, flow rate detection switch 30 is set at the ON state, donkey boiler 20 can not worked yet, be cooled to the degree that to carry out heat supply water if be stored in the warm water of heat supply water storage box 24, then do not place this moment the heat supply water temperature sensor 26 of heat supply water storage box 24 to detect set temperature value and make three-way magnetic valve 23 work, thereby cut off pipeline from the heat exchange solenoid 10a that supplies with convection tube 10 to inflow pipe 24a, the meanwhile open pipeline that is connected to donkey boiler 20 by heat supply water pipe arrangement 27, and thus, the cold water that is supplied to Cold water supply pipe 22 is through supplying with the heat-exchanger coil 10a of convection tube 10, once heat, and carry out post bake by heat supply water pipe arrangement 27 and through the heat-exchanger coil 20a that is built in the donkey boiler 20 through this warm water that once heats, be supplied to heat supply water supplying pipe 24b afterwards, thereby realize that the heat supply water that utilizes donkey boiler 20 to carry out circulates.
As mentioned above, utilizing donkey boiler 20 to carry out in the heat supply water process, have only warm water to be supplied to heat supply water supplying pipe 24b and flow rate detection switch 30 is in and just makes donkey boiler 20 work when opening (ON) state, and by closing tap or valve, do not supply with under the situation of warm water to heat supply water supplying pipe 24b, make flow rate detection switch 30 be set to close (OFF) state, thereby end the action of donkey boiler 20, and the temperature that is stored in the warm water of heat supply water storage box 24 rise to once more can heat supply water temperature the time, heat supply water temperature sensor 26 can detected temperatures set value, and three-way magnetic valve 23 is worked, the open thus pipeline from the heat-exchanger coil 10a that supplies with convection tube 10 to inflow pipe 24a forms the hot-water supply system that utilizes solar energy to carry out once more.
As mentioned above, in the boiler system for heating and hot water supply that utilizes solar energy of the present invention, the solar energy that hot medium liquid is absorbed is divided into low temperature and high temperature is stored in heat storage box 5 and warm water storage box 11 successively and supplies with convection tube 10, thereby make at heat collector 1 absorbed solar energy and can continue to heat the water at low temperature that is stored in heat storage box 5 inside, and the high-temperature water that only will utilize solar energy fully to heat is used for heat and heat water supplying selectively, and the solar energy reality that absorbs can not only be used for effectively the warm water heating thus, and the efficiency of heating surface of heating warm water can also be increased to higher level, and, can fully guarantee the amount of the warm water that heat and heat water supplying is required by the warm water that continues supply from heat storage box 5 to warm water storage box 11.
Particularly, having only the warm water temperatures that ought be stored in supply convection tube 10 and the heat supply water storage box 24 to be reduced to can't carry out under the situation of heat and heat water supplying, just can start donkey boiler 20 selectively, and, when utilizing donkey boiler heating warm water, heat energy by solar absorption rises by convection current, continue to be supplemented under the state of supplying with convection tube 10 tops through warm water storage box 11,20 need of donkey boiler replenish heating that not enough a part of heat get final product, simultaneously, also be not equal to by the amount of the warm water of donkey boiler 20 heating and be stored in heat storage box 5 and warm water storage box 11 whole warm water water yields, and only the required minimal amount of water of heat and heat water supplying is concentrated heating, thereby the energy dissipation that produced by the work of donkey boiler 20 and the heating load of donkey boiler 20 can be minimized, also can the required warm water of sustainable supply heat and heat water supplying.
As mentioned above, in the boiler system for heating and hot water supply that utilizes solar energy of the present invention, import in the process of hot medium liquid at the thermotropism medium box, automatically remove when being included in hot medium liquid the inside air, the form of pushing hot medium liquid to heat collector by circulating pump resupplies, thereby has an inner effect that produces the air stagnation behavior of pipe arrangement that can prevent that hot medium liquid from circulating, and thus, the circulation that can pass through the smoothness of hot medium liquid realizes effective heating of warm water, simultaneously, can avoid to remove the miscellaneous work of pipe arrangement inner air one by one and the pipe arrangement fracture phenomena being taken precautions against in possible trouble, make the semipermanent use of steam generator system become possibility.
In addition, owing to the warm water that utilizes the hot medium liquid heating can be separated and be stored as water at low temperature and high-temperature water, therefore, the solar energy that utilizes heat collector to absorb can continue the heating water at low temperature, simultaneously, can only the high-temperature water that fully heats with solar energy optionally be used in heat and heat water supplying, and thus, not only can fully effectively the solar energy that absorbs be used in the warm water heating, and can also prevent from the decline of the utilization ratio of the solar energy that produces because of donkey boiler work in night and rainy day from can improve the warm water efficiency of heating surface of utilizing solar energy.
Particularly, have only when being stored in the warm water temperature of supplying with convection tube and heat supply water storage box and be reduced to carry out the temperature of heat and heat water supplying the time, just optionally start donkey boiler, with this additional institute energy requirement, and, utilize donkey boiler to concentrate the also required minimum of heat and heat water supplying just of amount of the warm water of heating, thereby the energy dissipation that produced by the work of donkey boiler and the heating load of donkey boiler can be minimized, simultaneously the required warm water of still sustainable supply heat and heat water supplying.

Claims (3)

1. boiler system for heating and hot water supply that utilizes solar energy, the feeding pipe (1a) of the hot medium liquid that extends from solar thermal collector (1) is at the inner heat exchanger (4) that forms of heat storage box (5), the hot medium liquid reclaim line (1b) that extends to solar thermal collector (1) from this heat exchanger (4) is provided with circulating pump (9), it is characterized in that:
On described hot medium liquid feeding pipe (1a) and reclaim line (1b), be respectively arranged with high temperature detecting sensor (2) and low temperature detecting sensor (7), on this reclaim line (1b), be provided with the thermal medium case (8) and the circulating pump (9) of storage hot medium liquid simultaneously;
Described heat storage box (5) by being connected in the one upper lateral part supply convection tube (10) and the opposite side bottom change water convection tube (12), upper and lower side with warm water storage box (11) is connected respectively, the upper end of this supply convection tube (10) extends to the position that is higher than warm water storage box (11), is connected with donkey boiler (20) with indoor heating helix tube (15) respectively;
Extend to the heating recovery tube (16) of supplying with convection tube (10) from described heating helix tube (15) and be provided with circulating pump (17) and three-way magnetic valve (18), be extended with auxiliary recovery tube (19) from this three-way magnetic valve (18), and be connected in the described following side of changing water convection tube (12);
Cold water supply pipe (22) forms heat-exchanger coil (10a) and extends to the top of supplying with convection tube (10) in described supply convection tube (10), and is provided with the three-way magnetic valve (23) that is connected to heat supply water storage box (24) and described donkey boiler (20) in its end side;
Be provided with in described heat supply water storage box (24) inside by high-temperature water supply pipe (25a) and warm water recovery tube (25b) and be connected to described supply convection tube (10) and change the heating solenoid (25) of the upper end of water convection tube (12), and on the heat supply water supplying pipe (24b) that extends to a side of heat supply water storage box (24), be connected with heat supply water pipe arrangement (27) and the flow rate detection switch (30) that extends from described donkey boiler (20)
Described supply convection tube (10) and heat supply water storage box (24) are provided with the temperature sensor (10b) (26) of controlling corresponding three-way magnetic valve (18) (23) work respectively.
2. the boiler system for heating and hot water supply that utilizes solar energy according to claim 1, it is characterized in that: be formed with the automatic discharge pipe of air (8b) down on the lid (8a) of described thermal medium case (8) upside, the air from the hot medium liquid of heat exchanger (4) circulation can be discharged at any time.
3. the boiler system for heating and hot water supply that utilizes solar energy according to claim 1 is characterized in that: described auxiliary firing equipment (25) be the electric heater established by other or gas heater etc. directly firing equipment constitute.
CNB2004100874295A 2003-05-30 2004-05-28 Boiler system for heating and hot water supply using solar heat Expired - Fee Related CN100366990C (en)

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KR0034942/2003 2003-05-30
KR20030034942A KR100413118B1 (en) 2003-05-30 2003-05-30 Boiler system for heating and hot-water using solar heat
KR20-2003-0029416U KR200337474Y1 (en) 2003-09-17 2003-09-17 A device for forced circulation pump type hot water supply to which open type expansion tank is applied using solar energy
KR0029416/2003 2003-09-17

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CN102331036A (en) * 2010-07-13 2012-01-25 南昌旻 An open type solar heating and hot water supplying device
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