CN208846521U - Solar cross-season accumulation of energy and earth source heat pump combined heating system - Google Patents
Solar cross-season accumulation of energy and earth source heat pump combined heating system Download PDFInfo
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- CN208846521U CN208846521U CN201821293783.7U CN201821293783U CN208846521U CN 208846521 U CN208846521 U CN 208846521U CN 201821293783 U CN201821293783 U CN 201821293783U CN 208846521 U CN208846521 U CN 208846521U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model proposes a kind of solar cross-season accumulation of energys and earth source heat pump combined heating system, belong to the technical field of energy heat supply.The utility model includes solar thermal collection system, accumulation of heat and takes hot systems, ground-source heat pump system and end heating plant；It solar thermal collection system, accumulation of heat and takes hot systems to pass through short-term energy storage equipment to connect with end heating plant, ground-source heat pump system is also connect with end heating plant；Accumulation of heat and to take hot systems include heat accumulation pipe, heat accumulation pipe is installed in accumulation of heat well, accumulation of heat well construction heat-accumulating area；Ground-source heat pump system includes heat pump unit and heat exchanger tube, and heat exchanger tube is set in heat exchange well, and heat exchange well is located in the circumferential direction of heat-accumulating area.The solar energy of the utility model has obtained across season storage, solar thermal collection system, accumulation of heat and the heat of hot systems and ground-source heat pump system is taken to be used in combination, takes full advantage of solar energy, reduce operating cost, eliminate the thermal decay of ground-source heat pump system, long service life.
Description
Technical field
The utility model relates to the technical field of energy heat supply, a kind of solar cross-season accumulation of energy and ground source heat are particularly related to
Pump combined heating system.
Background technique
With advances in technology with the development in epoch, requirement of the people to living conditions is continuously improved, to indoor heating
More stringent requirements are proposed for comfort.However, the tradition heating energy based on the fossil fuels such as coal, brings mist to environment
The problem of environmental pollutions such as haze, acid rain.Therefore, the renewable energy utilizations such as solar energy, shallow layer geothermal energy are that government widelys popularize
One of the important energy source of clean energy resource heating.
Solar energy is a kind of widely distributed, green non-pollution renewable energy, the heat utilization of solar thermal collection system
Oneself is more mature for technology.But solar energy is the energy of a kind of seasonal variety and intermittent variation, is turned using efficient photo-thermal
Technology and across season energy accumulating technique are changed the solar energy utilization ratio of system will be greatly improved to building energy supply, economy is more preferable.
Therefore, in spring, summer, the autumn that solar energy is abundant and does not heat, solar energy is stored in underground energy storage system, is had in winter
It releases energy when heating demands, is used for winter heating.But underground energy storage system always has minor heat during accumulation of energy
It escapes in the soil of surrounding, if design is unreasonable, heat loss is serious, and energy storage efficiency is low, is unable to satisfy heat supply in winter
It needs.
Earth source heat pump is the land shallow-layer energy, is realized by inputting a small amount of high-grade energy (such as electric energy) by low-grade heat
The energy of 1KWh can be consumed to the device of high-grade heat energy transfer, usual earth source heat pump, the available 4.4KWh's or more of user
Heat or cooling capacity.But there are relaxation phenomenons to be inevitable for earth source heat pump, heating efficiency declines year by year, heat pump unit
It can not even start, seriously affect the heating system of user, influence the popularization and application of earth source heat pump.
Utility model content
The utility model proposes a kind of solar cross-season accumulation of energys and earth source heat pump combined heating system, solve existing skill
The underground energy storage system heat loss of solar thermal collection system is serious and lead to that its energy storage efficiency is low and earth source heat pump is deposited in art
Lead to its service life short problem in relaxation phenomenon.
A kind of solar cross-season accumulation of energy of the utility model and earth source heat pump combined heating system, technical solution is this
What sample was realized: including solar thermal collection system, accumulation of heat and taking hot systems, ground-source heat pump system and end heating plant；It is described too
It is positive can collecting system connect by short-term energy storage equipment with the end heating plant, the accumulation of heat and take hot systems also by institute
It states short-term energy storage equipment to connect with the end heating plant, the ground-source heat pump system is connect with the end heating plant；
The accumulation of heat and to take hot systems include the majority heat accumulation pipes that below ground is arranged in, the heat accumulation pipe is set to a heat-accumulating area
It is interior, most are provided in the heat-accumulating area for installing the accumulation of heat well of the heat accumulation pipe；The ground-source heat pump system includes setting
The heat pump unit being placed on ground and the majority heat exchanger tubes for being set to below ground, each heat exchanger tube are set to one
In heat exchange well, the heat exchange well is set in the circumferential direction of the heat-accumulating area.
Heat is carried out by First Heat Exchanger between the short-term energy storage equipment of the utility model and end heating plant to exchange,
Solar thermal collection system includes solar thermal collector and the second heat exchanger, is passed through between solar thermal collector and short-term energy storage equipment
Second heat exchanger carries out heat exchange；The utility model is using accumulation of heat and hot systems is taken to carry out the heat of solar thermal collection system
Across season storage stores process are as follows: the heat that solar thermal collector is collected first passes through the second heat exchanger and short-term energy storage equipment
Heat exchange is carried out, when the temperature of short-term energy storage equipment reaches certain value (generally higher than 5-8 DEG C of heat-accumulating area temperature, according to reality
Border situation is configured) when, short-term energy storage equipment starts gradually to pass to the heat in it into heat accumulation pipe, and heat accumulation pipe is in accumulation of heat well
Under the action of heat is stored；Solar thermal collection system constantly gives short-term energy storage equipment to provide heat, meanwhile, it is short-term to store
Energy device constantly transfers heat to heat accumulation pipe；Maximum temperature in heat accumulation pipe is up to 50-85 DEG C.When winter heats,
By solar thermal collection system, accumulation of heat and hot systems and the heat of ground-source heat pump system three is taken to be used in combination, this joint
Heating mode takes full advantage of solar energy, reduces operating cost to the maximum extent；Simultaneously as heat exchange well is arranged in heat-accumulating area
Circumferential direction on, the depth of heat exchange well is greater than the depth of accumulation of heat well, and the heat that heat accumulation pipe distributes in accumulation of heat well is exchanged heat in heat exchange well
Pipe has carried out sufficient absorption, and heat has obtained utilizing again, eliminates the thermal decay of ground-source heat pump system, extends ground source
The service life of heat pump system is particularly suitable for single heating project, economical and practical.
Embodiment as one preferred, the accumulation of heat well are rounded, oval or just polygon in the heat-accumulating area
Any one arrangement in shape.Most accumulation of heat well arrangements in a variety of shapes, are selected, according to the actual situation to make accumulation of heat
The arrangement of well is concentrated, and peripheral surface product is minimum, is reduced scattering and disappearing for heat, is improved heat storage capacity.
Embodiment as one preferred, the spread geometry one of the spread geometry of the heat exchange well and the accumulation of heat well
It causes.The regular polygon that accumulation of heat well surrounded, the outside of round or ellipse is arranged in heat exchange well, can be one layer, is also possible to
Multilayer, heat exchange well directly surround accumulation of heat well, close to absorb accumulation of heat well dispersed heat, avoid the relaxation phenomenon of earth source heat pump.
Embodiment as one preferred, the depth of the heat exchange well are greater than the depth of the accumulation of heat well, the heat exchange
The length of pipe is greater than the length of the heat accumulation pipe.The depth of heat exchange well is big greater than the length of the depth of accumulation of heat well namely heat exchanger tube
In the length of heat accumulation pipe, since the mounting height of heat exchanger tube and heat accumulation pipe upper end is substantially in same level, stored in accumulation of heat well
The heat that the bottom of heat pipe distributes can also be absorbed by the heat exchanger tube in heat exchange well, further avoid earth source heat pump
Relaxation phenomenon.
Embodiment as one preferred, the depth depth 5-20m of the depth of the heat exchange well than the accumulation of heat well.Heat exchange
The length of pipe is greater than the length of heat accumulation pipe, and the heat that the bottom of heat accumulation pipe distributes is inhaled along obliquely downward by the bottom of heat exchanger tube
It receives, length is appropriate, avoids material and the wasting of resources.
Embodiment as one preferred is equipped with insulating layer in below ground on the heat-accumulating area.The setting of insulating layer
Make to be kept the temperature at the top of heat accumulation pipe, the heat for avoiding heat accumulation pipe is distributed from its top, has fully ensured that heat accumulation pipe
Effective storage of interior heat.
Embodiment as one preferred, the heat exchanger tube and the heat accumulation pipe are U-tube, and the heat accumulation pipe is resistance to
High temperature PE-Xa pipe, high temperature resistant PE-Xb pipe, high temperature resistant PE-Xc pipe, high temperature resistant PERT pipe, any one in high temperature resistant Pb pipe.
U-tube in heat exchange well and accumulation of heat well can be single U, be also possible to double U, and this U-tube facilitates installation, and heat accumulation pipe passes through string
After connection, in parallel, series connection it is in parallel again, in parallel after a variety of combinations such as connect again make all heat accumulation pipes connect into one kind to wriggle
The pipeline of Yan complications, position are concentrated, and heat storage is high-efficient, can sufficiently store the solar energy of summer high heat with high temperature resistant.
Embodiment as one preferred, between the short-term energy storage equipment and the heat accumulation pipe be equipped with accumulation of heat pipeline and
Heat removing tube road, the accumulation of heat pipeline is equipped with the first control valve, storage heat pump, third control valve and the 5th control valve, described to take heat
Pipeline is equipped with the 4th control valve, takes heat pump, the 6th control valve and the second control valve, the storage heat pump and described to take heat pump be same
One pump.Short-term energy storage equipment is from the flow direction of fluid media (medium) when extracting heat in heat accumulation pipe and short-term energy storage equipment into heat accumulation pipe
When storing heat fluid media (medium) flow direction on the contrary, accumulation of heat pipeline and heat removing tube road respectively since both direction completes short-term energy storage equipment
Heat storage and extraction.
Compared with prior art, the utility model has the beneficial effects that the utility model is using accumulation of heat and takes hot systems will
The heat of solar thermal collection system carries out across season storage, and storage is convenient, and heat has obtained effective storage, and efficiency of storage is high；Winter
When season heats, by solar thermal collection system, accumulation of heat and hot systems and the heat of ground-source heat pump system three is taken to join
Dynamic to use, this linkage heating mode takes full advantage of solar energy, reduces operating cost to the maximum extent；Since heat exchange well is arranged
In the circumferential direction of the heat-accumulating area of accumulation of heat well construction, the depth of heat exchange well is greater than the depth of accumulation of heat well, heat accumulation pipe dispersed heat quilt
Heat exchanger tube has carried out sufficient absorption, considerably reduces thermal loss, eliminates the thermal decay of ground-source heat pump system, extends
The service life of ground-source heat pump system is particularly suitable for single heating project, economical and practical.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the planar structure schematic diagram of the utility model one embodiment；
Fig. 2 is the overlooking structure diagram of the connection relationship of accumulation of heat well shown in Fig. 1 and heat exchange well；
In figure: 1- heat pump unit；The short-term energy storage equipment of 2-；3- solar thermal collector；4- First Heat Exchanger；5- second exchanges heat
Device；6- heat exchanger tube；7- heat accumulation pipe；8- first circulation pump；9- second circulation pump；10- third circulating pump；The 4th circulating pump of 11-；
The 5th circulating pump of 12-；The 6th circulating pump of 13-；The 7th control valve of 14-；The 8th control valve of 15-；The 9th control valve of 16-；17- the tenth
Control valve；The 11st control valve of 18-；The 12nd control valve of 19-；The first control valve of 20-；The second control valve of 21-；22- third control
Valve processed；The 4th control valve of 23-；The 5th control valve of 24-；The 6th control valve of 25-；The ground 26-；27- insulating layer；29- accumulation of heat well；
30- heat exchange well；The end 31- heating plant；A- solar thermal collection system；B- accumulation of heat and take hot systems；C- ground-source heat pump system.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
Refering to attached drawing 1 and attached drawing 2, a kind of solar cross-season accumulation of energy of the utility model and earth source heat pump united heat system
System, including solar thermal collection system A, accumulation of heat and take hot systems B, ground-source heat pump system C and end heating plant 31；Solar energy collection
Hot systems A is connect by short-term energy storage equipment 2 with end heating plant 31, accumulation of heat and hot systems B is taken to fill also by short-term accumulation of energy
It sets 2 to connect with end heating plant 31, ground-source heat pump system C is connect with end heating plant 31；Short-term energy storage equipment 2 and end
First Heat Exchanger 4 is equipped between heating plant 31, short-term energy storage equipment 2 is connected by First Heat Exchanger 4 and end heating plant 31
It connects, short-term energy storage equipment 2 carries out heat by First Heat Exchanger 4 with end heating plant 31 and exchanges, and ground-source heat pump system C is direct
It is connect with end heating plant 31；Accumulation of heat and to take hot systems B include setting in the most heat accumulation pipes 7 below of ground 26, accumulation of heat
Pipe 7 is set in a heat-accumulating area, and most are provided in heat-accumulating area for installing the accumulation of heat well 29 of heat accumulation pipe 7；Earth source heat pump system
System C includes being set to heat pump unit 1 on ground 26 and being set to the most heat exchanger tubes 6 below of ground 26, each heat exchange
Pipe 6 is set in a heat exchange well 30, and heat exchange well 30 is set in the circumferential direction of heat-accumulating area.Solar thermal collection system A is for collecting
Solar energy, solar thermal collection system A include solar thermal collector 3 and the second heat exchanger 5, solar thermal collector 3 and short-term accumulation of energy
Heat exchange is carried out by the second heat exchanger 5 between device 2.The heat that solar thermal collection system A is collected into first passes through short-term storage
Energy device 2 is temporarily stored, the heat that short-term energy storage equipment 2 temporarily stores, it can be directly used in by First Heat Exchanger 4
End heating plant 31 heats, and accumulation of heat can also be stored in across season and is taken in hot systems B；When winter needs to heat, too
It is positive collecting system A, accumulation of heat and the heat of hot systems B and ground-source heat pump system C three to be taken to carry out linkage use, this linkage confession
Warm mode takes full advantage of solar energy, reduces operating cost to the maximum extent；The 7 dispersed heat quilt of heat accumulation pipe of the utility model
Heat exchanger tube 6 has carried out sufficient absorption, considerably reduces thermal loss, eliminates the thermal decay of ground-source heat pump system C, prolongs
The service life of ground-source heat pump system C has been grown, single heating project is particularly suitable for, it is economical and practical.
Refering to attached drawing 1 and attached drawing 2, accumulation of heat well 29 is rounded in heat-accumulating area, any one in oval or regular polygon
Kind arrangement.In the present embodiment, accumulation of heat well 29 is arranged in heat-accumulating area in octagon, and certainly, accumulation of heat well 29 is in heat-accumulating area
It can be in any one arrangement in regular quadrangle, regular hexagon or regualr decagon.The spread geometry of accumulation of heat well 29, so that it is arranged
Column, which are more concentrated, to be advisable, and the external surface area for the heat-accumulating area for forming it is minimum, reduces scattering and disappearing for heat, improves heat storage capacity.It changes
The spread geometry of hot well 30 can be consistent with the spread geometry of accumulation of heat well 29, and certainly, the spread geometry of heat exchange well 30 can also be with
The spread geometry of accumulation of heat well 29 is inconsistent.Regular polygon, the round or ellipse that accumulation of heat well 29 is surrounded is arranged in heat exchange well 30
Outside, can be one layer, can be multilayer, heat exchange well 30 directly surrounds accumulation of heat well 29, close to absorb what accumulation of heat well 29 scattered and disappeared
Heat avoids the relaxation phenomenon of ground-source heat pump system C.In the present embodiment, spread geometry and the accumulation of heat well 29 of heat exchange well 30
Spread geometry is inconsistent, and heat exchange well 30 is arranged in regular quadrangle, its interior accumulation of heat well 29 of this regular quadrangle comprehensive surrounding forms
Octagon, heat exchanger tube 6 fully absorb the heat that heat accumulation pipe 7 comes out.The depth of heat exchange well 30 is greater than the depth of accumulation of heat well 29
Degree, the length of heat exchanger tube 6 are greater than the length of heat accumulation pipe 7.The depth of heat exchange well 30 is greater than the depth namely heat exchanger tube of accumulation of heat well 29
6 length is greater than the length of heat accumulation pipe 7, since the mounting height of 7 upper end of heat exchanger tube 6 and heat accumulation pipe is substantially in same level
On, the heat that the bottom of heat accumulation pipe 7 distributes in accumulation of heat well 29 can also be inhaled by the heat exchanger tube 6 in heat exchange well 30
It receives, further avoids the relaxation phenomenon of ground-source heat pump system C.Under normal conditions, the depth of heat exchange well 30 is than accumulation of heat well 29
Depth depth 5-20m.The length of general heat accumulation pipe 7 is 35-120m, and the length of heat exchanger tube 6 is greater than the length of heat accumulation pipe 7, heat accumulation pipe 7
The heat that distributes of bottom absorbed along obliquely downward by the bottom of heat exchanger tube 6, length is appropriate, avoids material and money
Source waste.In addition, on ground 26 to have insulating layer 27 on heat-accumulating area.The setting of insulating layer 27 obtains the top of heat accumulation pipe 7
Heat preservation is arrived, the heat for avoiding heat accumulation pipe 7 is distributed from its top, has fully ensured that effective storage of heat in heat accumulation pipe 7
It deposits.
Refering to attached drawing 1, in the utility model, accumulation of heat pipeline and heat removing tube are equipped between short-term energy storage equipment 2 and heat accumulation pipe 7
Road, accumulation of heat pipeline are equipped with the first control valve 20, storage heat pump, third control valve 22 and the 5th control valve 24, and heat removing tube is set on road
There is the 4th control valve 23, take heat pump, the 6th control valve 25 and the second control valve 21, storage heat pump and to take heat pump be the same pump i.e. the
Six circulating pumps 13.Flow direction when short-term energy storage equipment 2 extracts heat from heat accumulation pipe 7 and short-term energy storage equipment 2 are to accumulation of heat
Flow direction when storing heat in pipe 7 on the contrary, accumulation of heat pipeline and heat removing tube road respectively since both direction completes short-term accumulation of energy dress
Set 2 heat storage and extraction.In the utility model, heat exchanger tube 6 and heat accumulation pipe 7 are U-tube, and heat accumulation pipe 7 is high temperature resistant PE-
Xa pipe, high temperature resistant PE-Xb pipe, high temperature resistant PE-Xc pipe, high temperature resistant PERT pipe, any one in high temperature resistant Pb pipe.Heat exchange well 29
With the U-tube in accumulation of heat well 30, single U can be, be also possible to double U, this U-tube facilitates installation, and all heat accumulation pipes 7 connect
At a kind of winding pipeline, position is concentrated, and heat storage is high-efficient, can sufficiently store summer high heat with high temperature resistant
Solar energy.
Refering to attached drawing 1, for the utility model in solar thermal collection system A, solar thermal collector 3 and the second heat exchanger 5 are logical
Piping connection forming circuit, the second heat exchanger 5 is usually plate heat exchanger, and the output end of solar thermal collector 3 is followed the 4th
The second heat exchanger 5 is flowed under the action of ring pump 11, after the heat exchange of the second heat exchanger 5, in the effect of the 11st control valve 18
Under, solar energy is absorbed again into the input terminal of solar thermal collector 3, and in solar thermal collector 3, is circuited sequentially；Meanwhile
The output end of short-term energy storage equipment 2 flows to the second heat exchanger 5 under the action of the 5th circulating pump 12, changes by the second heat exchanger 5
After heat, under the action of the 12nd control valve 19, into the input terminal of short-term energy storage equipment 2, to absorb solar energy heating
The heat that device 3 is collected, circuits sequentially.The accumulation of heat of the utility model and take hot systems B by accumulation of heat pipeline and heat removing tube road with it is short
Phase energy storage equipment 2 connects, and when accumulation of heat, the output end of short-term energy storage equipment 2 connects accumulation of heat pipeline, successively passes through accumulation of heat pipeline
On the first control valve 20, the 6th circulating pump 13 and third control valve 22 enter heat accumulation pipe 7, pass through after being come out from heat accumulation pipe 7
5th control valve 24 enters the input terminal of short-term energy storage equipment 2, and the heat storage that short-term energy storage equipment 2 is temporarily stored is in accumulation of heat
With take in hot systems B；When taking heat, the input terminal connection on the output end, that is, accumulation of heat pipeline of short-term energy storage equipment 2 at this time is taken
Heat pipeline, successively by the 4th control valve 23, the 6th circulating pump 13 and the 6th control valve 25 on heat removing tube road along with accumulation of heat
Opposite direction enters heat accumulation pipe 7, passes through the second control valve 21 after coming out from heat accumulation pipe 7 and enters short-term energy storage equipment 2 at this time
Input terminal, that is, accumulation of heat output end, short-term energy storage equipment 2 completes from accumulation of heat and takes in hot systems B and extract heat.It is short-term to store
Energy device 2 connect forming circuit by pipeline with First Heat Exchanger 4, it is generally the case that First Heat Exchanger 4 is also plate-type heat-exchange
The output end of device, short-term energy storage equipment 2 enters First Heat Exchanger 4 by third circulating pump 10, by 4 heat exchange of First Heat Exchanger
Afterwards, it under the action of the tenth control valve 17, into the input terminal of short-term energy storage equipment 2, circuits sequentially；Meanwhile end heating fills
It sets 31 output end and flows to First Heat Exchanger 4 under the action of first circulation pump 8, after exchanging heat by First Heat Exchanger 4, the
It under the action of seven control valves 14, into the input terminal of end heating plant 31, circuits sequentially, to complete end heating plant 31
Heating.In addition, heat pump unit 1 enters heat exchanger tube 6 by second circulation pump 9 in ground-source heat pump system C, gone out by heat exchanger tube 6
After coming, heat pump unit 1 is returned to by the 9th control valve 16 and carries out heat transfer, heat pump unit 1 is completed in transfer heat exchanger tube 6
Heat；Meanwhile the output end of end heating plant 31 flows to heat pump machine under the action of first circulation pump 8 and the 8th control valve 15
Group 1 into the input terminal of end heating plant 31, circuits sequentially, after heat pump unit 1 completes heat exchange to complete end
The heating of heating plant 31.
Working principle: in three spring, summer, autumn non-heating seasons, solar thermal collection system A and accumulation of heat is only opened and takes heat
System B two subsystems close ground-source heat pump system C and end heating plant 31, realize that non-heating season solar cross season stores
It can run, workflow are as follows: in the high temperature side of the second heat exchanger 5, solar thermal collector 3, the heat exchange of the 4th circulating pump 11, second
The loop of device 5 and the 11st control valve 18 composition, in the low temperature side of the second heat exchanger 5, short-term energy storage equipment the 2, the 5th is recycled
The loop for pumping the 12, second heat exchanger 5 and the 12nd control valve 19 composition, the heat that solar thermal collector 3 absorbs temporarily is stored
In the inside of short-term energy storage equipment 2；When short-term 2 water temperature of energy storage equipment reaches set temperature, open by short-term energy storage equipment 2, the
The heat reservoir that one control valve 20, the 6th circulating pump 13, third control valve 22, heat accumulation pipe 7, the 5th control valve 24 form, will be warm
Amount is stored in heat-accumulating area.
The utility model it is a kind of according to solar cross-season accumulation of energy recited above and earth source heat pump combined heating system
Heating method, including following mode: 1) when the temperature of sufficient, the short-term energy storage equipment 2 of solar energy reaches end heating plant 31
Heating when requiring, open short-term energy storage equipment 2, the heat that short-term energy storage equipment 2 collects solar thermal collection system A supplies end
Hold heating plant 31；2) it is impossible to meet the heating of end heating plant 31 to want for the heat provided by the solar thermal collection system A
It when asking, opens accumulation of heat and takes hot systems B, short-term energy storage equipment 2 is from accumulation of heat and takes in hot systems B and extracts heat, in it
Heat compensates, and by solar thermal collection system A and accumulation of heat and the heat of hot systems B combination collection is taken to supply end heating
Device 31；3) when 1) and when 2) two modes are unable to meet the heating requirement of end heating plant 31, opening earth source heat pump
System C, 1 heat transfer of heat pump unit, and supply end heating plant 31；4) when the heating of ground-source heat pump system C reaches end
After the temperature requirement of heating plant 31, close ground-source heat pump system C, when needing to heat again continue repeat pattern 1), mode 2)
With mode 3).
Under normal conditions, mode 1) under, the water temperature of short-term energy storage equipment 2 is greater than 40 DEG C；Mode 2) under, short-term energy storage equipment
Water temperature of 2 water temperature less than 40 DEG C and in heat accumulation pipe 7 is greater than 45 DEG C；Mode 3) under, the water temperature of short-term energy storage equipment 2 is less than 40 DEG C
And the water temperature in heat accumulation pipe 7 is less than 45 DEG C.Heating mode can be intuitively judged by temperature, be conducive to overhaul and safeguarded.This
Utility model can use intelligence control system, be controlled it using existing PLC controller, easy to control, convenient for pipe
Reason.
When heating in winter, there are three types of heating modes for the heating method of the utility model:
It 1), can be directly with solar energy collection when the water temperature in solar energy abundance, short-term energy storage equipment 2, which reaches heating, to be required
The heat that hot systems A is provided heats, workflow are as follows: solar thermal collector 3 collects solar energy, and output end successively passes through the
The loop of four circulating pumps 11, the second heat exchanger 5 and the 11st control valve 18 composition, carries out heat exchange in the second heat exchanger 5,
And solar thermal collector 3 is flow back into, to absorb heat again, circuit sequentially；Meanwhile the output end of short-term energy storage equipment 2 is successively
By the loop that the 5th circulating pump 12, the second heat exchanger 5 and the 12nd control valve 19 form, heat is carried out in the second heat exchanger 5
Amount exchange, and short-term energy storage equipment 2 is flow back into, it circuits sequentially, the heat for absorbing solar thermal collector 3 is temporarily stored in short term
The inside of energy storage equipment 2；When short-term 2 water temperature of energy storage equipment reaches set temperature, unlatching is controlled by short-term energy storage equipment 2, first
The heat reservoir that valve 20, the 6th circulating pump 13, third control valve 22, heat accumulation pipe 7, the 5th control valve 24 form, heat is passed through
Heat accumulation pipe 7 is stored in heat-accumulating area.
2) when the heat provided by the solar thermal collection system A is unsatisfactory for heating and requires, open by short-term energy storage equipment 2,
What the 4th control valve 23, the 6th circulating pump 13, the 6th control valve 25, heat accumulation pipe 7, the second control valve 21 were formed into a loop takes hot system
System will be stored in heat extraction in heat accumulation pipe 7 and its around the accumulation of heat well 29 at place to short-term energy storage equipment 2, to short-term
The heat of energy storage equipment 2 compensates, to complete the heating of short-term 2 terminad heating installation 31 of energy storage equipment.
3) when 1) and when 2) two modes are not able to satisfy heating demands, close the 7th control valve 14, third circulating pump 10,
Tenth control valve 17, opens the 8th control valve 15 and heat pump unit 1, and heat pump unit 1 is from by second circulation pump 9, heat exchanger tube 6, the
Heat in the loop of nine control valves 16 composition in transfer heat exchanger tube 6 and its around the heat exchange well 30 at place, and heat to end
Device 31 heats.
4) after ground-source heat pump system C heating reaches set water temperature, ground-source heat pump system C is closed, when needing to heat again
Repeat 1), 2) He 3) mode.
Compared with prior art, the utility model has the beneficial effects that the utility model is using accumulation of heat and takes hot systems B will
The heat of solar thermal collection system A carries out across season storage, and storage is convenient, and heat has obtained effective storage, and efficiency of storage is high；Winter
When season heats, by solar thermal collection system A, accumulation of heat and hot systems B and the heat of ground-source heat pump system C three is taken to join
Dynamic to use, this linkage heating mode takes full advantage of solar energy, reduces operating cost to the maximum extent；Since heat exchange well 30 is set
It sets in the circumferential direction for the heat-accumulating area that accumulation of heat well 29 forms, the depth of heat exchange well 30 is greater than the depth of accumulation of heat well 29, and heat accumulation pipe 7 scatters and disappears
Heat sufficient absorption has been carried out by heat exchanger tube 6, considerably reduce thermal loss, the heat for eliminating ground-source heat pump system C declines
Subtract phenomenon, extend the service life of ground-source heat pump system C, is particularly suitable for single heating project, it is economical and practical.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (8)
1. a kind of solar cross-season accumulation of energy and earth source heat pump combined heating system, it is characterised in that: including solar energy heating system
System and takes hot systems, ground-source heat pump system and end heating plant at accumulation of heat；
The solar thermal collection system is connect by short-term energy storage equipment with the end heating plant, the accumulation of heat and takes hot system
System is connect also by the short-term energy storage equipment with the end heating plant, the ground-source heat pump system and the end heating
Device connection；
The accumulation of heat and to take hot systems include the majority heat accumulation pipes that below ground is arranged in, the heat accumulation pipe is set to an accumulation of heat
In area, most are provided in the heat-accumulating area for installing the accumulation of heat well of the heat accumulation pipe；
The ground-source heat pump system includes the heat pump unit being set on ground and the majority heat exchange for being set to below ground
Pipe, each heat exchanger tube are set in a heat exchange well, and the heat exchange well is set in the circumferential direction of the heat-accumulating area.
2. solar cross-season accumulation of energy according to claim 1 and earth source heat pump combined heating system, it is characterised in that:
Any one arrangement of the accumulation of heat well in the heat-accumulating area in rounded, oval or regular polygon.
3. solar cross-season accumulation of energy according to claim 2 and earth source heat pump combined heating system, it is characterised in that:
The spread geometry of the heat exchange well is consistent with the spread geometry of the accumulation of heat well.
4. solar cross-season accumulation of energy according to claim 1 and earth source heat pump combined heating system, it is characterised in that:
The depth of the heat exchange well is greater than the depth of the accumulation of heat well, and the length of the heat exchanger tube is greater than the length of the heat accumulation pipe
Degree.
5. solar cross-season accumulation of energy according to claim 4 and earth source heat pump combined heating system, it is characterised in that:
Depth depth 5-20m of the depth of the heat exchange well than the accumulation of heat well.
6. solar cross-season accumulation of energy according to claim 1 and earth source heat pump combined heating system, it is characterised in that:
Insulating layer is equipped in below ground on the heat-accumulating area.
7. solar cross-season accumulation of energy according to claim 1 and earth source heat pump combined heating system, it is characterised in that:
The heat exchanger tube and the heat accumulation pipe are U-tube, the heat accumulation pipe is managed for high temperature resistant PE-Xa, high temperature resistant PE-Xb is managed,
High temperature resistant PE-Xc pipe, high temperature resistant PERT pipe, any one in high temperature resistant Pb pipe.
8. solar cross-season accumulation of energy according to claim 1 and earth source heat pump combined heating system, it is characterised in that:
Accumulation of heat pipeline and heat removing tube road are equipped between the short-term energy storage equipment and the heat accumulation pipe, the accumulation of heat pipeline is equipped with
First control valve, storage heat pump, third control valve and the 5th control valve, the heat removing tube road be equipped with the 4th control valve, take heat pump,
6th control valve and the second control valve, the storage heat pump and it is described take heat pump be the same pump.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108826422A (en) * | 2018-08-10 | 2018-11-16 | 北京豪迈昌安绿色能源科技有限公司 | Solar cross-season accumulation of energy and earth source heat pump combined heating system and its heating method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108826422A (en) * | 2018-08-10 | 2018-11-16 | 北京豪迈昌安绿色能源科技有限公司 | Solar cross-season accumulation of energy and earth source heat pump combined heating system and its heating method |
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Effective date of registration: 20191209 Address after: Room 12, building 7, No. 959, Kangcheng Street (East), Gaomi Economic Development Zone, Gaomi City, Weifang City, Shandong Province Patentee after: Shandong Haomai Chang'an Green Energy Co., Ltd Address before: 266000 room 1501, Hisense Bay Bay building, Shibei District, Qingdao, Shandong. Patentee before: Beijing Hao Ma Chang An Green Energy Technology Co., Ltd. |