CN203274569U - Heat accumulation-heat-exchange equipment - Google Patents
Heat accumulation-heat-exchange equipment Download PDFInfo
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- CN203274569U CN203274569U CN2013202418713U CN201320241871U CN203274569U CN 203274569 U CN203274569 U CN 203274569U CN 2013202418713 U CN2013202418713 U CN 2013202418713U CN 201320241871 U CN201320241871 U CN 201320241871U CN 203274569 U CN203274569 U CN 203274569U
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Abstract
The utility model provide heat accumulation-heat-exchange equipment, which comprises a plurality of heat accumulation-heat exchange units arranged in the stacked array, wherein each heat accumulation-heat exchange unit comprises a heat accumulation casing, heat accumulation materials placed in an inside cavity of the heat accumulation casing, and a heat exchange device arranged in the heat accumulation materials. The heat accumulation-heat-exchange equipment is characterized in that upper parts of inside cavities of heat accumulation casings are opened; horizontal cross section areas of the cavities for storing the heat accumulation materials in the heat accumulation casings are enlarged gradually in the height direction; the heat accumulation casings have capabilities of sensible heat and heat accumulation; the heat accumulation-heat exchange units conduct the input and the output of the heat through heat exchange devices; the heat accumulation-heat-exchange equipment has the characteristics that the cost is low, the utilization area of the temperature parameters is wide, the structure is simple, the workshop production can be modularized, the transportation is convenient, and the field mounting is simple, and therefore can be applied to a plurality of fields.
Description
Technical field
The utility model relates to a kind of heat accumulation-heat transmission equipment, relates in particular to a kind of heat accumulation-heat transmission equipment that is applied to field of solar energy.
Background technology
Along with the development of society, the exhaustion of fossil energy is inevitable, and this just means that before energy resource consumption totally, the mankind must find new alternative energy source---regenerative resource.In all renewable and clean energy resources, the following alternative energy source that solar energy etc. are all had an optimistic view of by the various countries expert.
Obvious characteristics of solar radiation be subjected to round the clock, the regular impact that changes such as season, and the restriction of the enchancement factor such as rain or shine sexual intercourse.In order to overcome the discontinuity of solar radiation, all can adopt hold over system in solar energy utilization system.The heat-storing material that uses at present is divided into: sensible heat type, latent heat type and the large class of chemical reaction type 3, using is sensible heat type and latent heat type more widely, mainly contains conduction oil, refractory concrete, inorganic salts etc.refractory concrete is as heat accumulating, good application prospect is arranged, safety and stability, with low cost, but exist thermal conductivity factor lower, heat exchange pipeline quantity is many, the temperature continuous decrease can't obtain the higher deficiencies such as parameter, between heat exchange pipeline and solid material because the coefficient of expansion is different, can material damage or crack occur after the cooling that repeatedly heats up, all produce harmful effect in heat exchanging effect and service life, inorganic salts have larger latent heat of phase change, use comparatively extensive, but it has certain corrosivity to container, and container material quality is had relatively high expectations, the cost difficulty that descends, although (refractory concrete is as the heat accumulation housing heat accumulation mode that refractory concrete sensible heat heat accumulation combines with inorganic salts phase transformation or sensible heat heat accumulation to occur at present utilizing, become cylinder or rectangular cylinder, inorganic salts are in cylindrical shell), there is the problem of Project Realization in existing phase-change thermal storage, the change in volume of bringing in solid-liquid phase-change process and case material are difficult for coupling, repeatedly can occur damaged after the circulation, be specially in the heat storage can system and receive in the process of heat input, the internal heat exchange tubes road first heats the inorganic salts of heat accumulation tank interior, and outside refractory concrete is not when in time receiving heat or receiving only a small amount of heat, the inconsistent situation of Temperature Matching appears, cause inorganic salts outwards to expand, heat accumulation housing swell increment is not enough, the heat accumulation tank body that causes repeatedly the crack situation occurring after frequent cycle, the whole storage causes the too high capacity of heat transmission of the interregional existence of different temperatures, forms even temperature effect, is difficult to guarantee the output temperature parameter, the shell dimension that large volume is brought is huge, and bearing requirements is high, and the housing cost is high, the energy storage material expense is also higher.
For above problem, the utility model proposes and a kind ofly have that thermal conductivity factor is high, security good, amount of stored heat is large, facilitate workshop processing, transportation and on-the-spot heat accumulation-heat transmission equipment that the characteristics such as convenient are installed.
Summary of the invention
The utility model purpose is, overcome technical problem described above, a kind of heat accumulation-heat transmission equipment is provided, comprise heat accumulation-heat exchange unit that a plurality of laminated array are arranged, each described heat accumulation-heat exchange unit comprises the heat accumulation housing, be placed in the heat accumulating of described heat accumulation enclosure interior cavity and the heat-exchanger rig that is arranged in described heat accumulating, it is characterized in that, the cavity top of described heat accumulation enclosure interior is open, and in described heat accumulation housing the horizontal cross-sectional area of the cavity of storage heat accumulating along increasing gradually on short transverse; Described heat accumulation housing has the sensible heat heat storage capacity; Preferably, the cavity side wall of heat accumulation housing is arranged away from central shaft continuously along the direction that highly rises, perhaps, arrange the spacer assembly that sectional area reduces gradually along the height ascent direction in heat accumulation enclosure interior space, make heat accumulating because of variations in temperature or undergo phase transition when causing change in volume and develop to the top open space, the compression failure of minimizing to the housing surrounding, increase the service life, and the sensible heat specific heat of heat accumulation housing is used, reduce inner heat accumulating consumption, reduce overall heat accumulation cost.
Further, between described heat accumulation housing and heat accumulating, corrosion-resistant intermediate layer is arranged, effectively avoid the corrosion of heat accumulating to the heat accumulation housing under hot environment, extend the service life of heat accumulation housing.
Further, described heat accumulation-heat exchange unit is stacked arranged in arrays on short transverse, forms array group; And at least 1 array group consists of heat accumulation-heat transmission equipment integral body.
Further, described heat accumulation-heat exchange unit rule dislocation laminated array on short transverse is arranged, consists of heat accumulation-heat transmission equipment whole; For example a plurality of square structures change array direction dislocation layout, increase Systems balanth, and for example anti-seismic performance is good.
Preferably, the layout number of plies on described heat accumulation-heat exchange unit short transverse effectively forms the mesolimnion structure greater than 10 layers, stores high-grade heat as much as possible in effective space.
Further, the interior space of described heat accumulation housing comprises the cavity of a plurality of storage heat accumulatings, and the horizontal cross-sectional area of the cavity of single or whole storage heat accumulating is along progressively increasing on short transverse; The heat accumulation housing swelling fracture of effectively avoiding the heat accumulating thermal expansion to cause.
Further, the material of described heat accumulation housing is the researching of sensible heat storage material of the mixture of cement or concrete or stone material or metal or glass or pottery or graphite or more than one above-mentioned material.
Further, the side in the interior space of described heat accumulation housing and base angle are greater than 100 °, effectively to dissolve the compression failure that in the liquid-solid phase transition process of heat accumulating, change in volume causes the heat accumulation housing.
Further, the side of described heat accumulation housing and junction, base are arc transition, with further enhancing heat accumulation casing rigidity.
Further, the material in the corrosion-resistant intermediate layer between described heat accumulation housing and heat accumulating is thin plate or the concavo-convex thin plate of ripple or graphite paper or the carbon fibre initial rinse fabric of aluminium or stainless steel or carbon steel material.
Further, the corrosion-resistant intermediate layer material that each interior space of described heat accumulation housing or interior space cell use is whole material, and the seepage of avoiding seam to cause especially avoids liquid heat accumulating to the seepage of outside, corrosion-resistant intermediate layer.
Further, described corrosion-resistant intermediate surface is furnished with fin or the pillar construction that inserts in the heat accumulation housing to the heat accumulation case side, and fin or pillar construction integral body are non-sawtooth design, increased well the heat exchange property between heat accumulation housing and heat accumulating, avoided simultaneously both not mating the anti-corrosion intermediate layer cracking situation that causes because expanding and occurred.
Further, add the interpolation material of high heat conductance in described heat accumulation enclosure interior or heat accumulating, materials such as iron filings, graphite, magnesia brick powder.
Further, add highly heat-conductive material in described heat accumulating, materials such as copper wire, aluminium wire, iron wire, the heat conductivility of raising heat accumulating.
Further, described heat accumulation housing cavity sealing, and protective gas is added in the inner space; Reduce for example contacting of air and heat accumulation housing and heat accumulating of ambient atmos, increase the service life.
Further, add protective gas in described heat accumulation-heat exchange unit array integral sealing, seal cavity, minimizing ambient atmos for example air contacts with heat accumulating and the heat accumulation housing of inside, increases the service life.
Further, the outer surface cloth of described heat accumulation-heat transmission equipment is equipped with insulation construction and outermost overcoat, and unified implementation protection and insulation improve heat preservation energy-saving efficient.
Further, but described heat accumulating is liquid researching of sensible heat storage material or liquid researching of sensible heat storage material mixes phase-change heat-storage material that the researching of sensible heat storage material that uses or mushy stage conversion use or phase-change heat-storage material mix use with solid matter phase-change heat-storage material with solid matter.
Further, described phase-change heat-storage material is mixture or low-melting-point metal or the low-melting point metal alloy of inorganic salts or inorganic salts, and for example inorganic salts are sodium nitrate or potassium nitrate simple substance or specific proportioning mixture both; Low-melting-point metal is zinc, magnesium, aluminium or specific proportioning alloy, and that utilizes that the enthalpy of phase change of phase-change heat-storage material carries out heat deposits heat and heat-obtaining.
Further, described liquid researching of sensible heat storage material is inorganic salts or inorganic salt mixt or low-melting-point metal or low-melting point metal alloy or conduction oil.
Further, described solid matter is ceramic fine bead or ceramic or cobblestone, metal iron filings, magnesia brick powder, graphite powder.
Preferably, the inorganic salts density such as the density of this ceramic fine bead or ceramic and sodium nitrate or potassium nitrate are close, be suspended in well in heat accumulating, effectively improve the density after phase-change heat-storage material undergoes phase transition, reduce the change in volume of phase-change heat-storage material in phase transition process, the destruction of causing the heat accumulation housing is impacted in reduction because of the phase-change heat-storage material circulating phase-change; Or this solid matter is arranged in researching of sensible heat storage material, utilizes the thermal storage performance of solid matter self to carry out heat accumulation, simultaneously the good good contact that guarantees liquid researching of sensible heat storage material and heat-exchanger rig.
Further, described heat-exchanger rig comprises deposits hot heat exchange pipeline and heat-obtaining heat exchange pipeline, can implement separately heat accumulating is deposited heat and heat-obtaining process, also can realize depositing the coupling between both of heat and heat-obtaining.
Further, described depositing is the trend layout that progressively raises on hot heat exchange pipeline and/or the short transverse of heat-obtaining heat exchange pipeline from bottom to top, facilitate the separation of vapour-liquid, and deposit on hot heat exchange pipeline and heat-obtaining heat exchange pipeline and be furnished with fin, have good heat transfer effect.
Further, heat accumulation-heat exchange unit that described a plurality of laminated array is arranged described deposited hot heat exchange pipeline and/or heat-obtaining heat exchange pipeline and connects beyond heat accumulation enclosure interior space, completes simply and easily being connected in series of heat transmission of whole heat accumulation-heat transmission equipment.
Heat accumulation-heat transmission equipment that the utility model provides, has following obvious advantage, (1) the internal cavities shape of heat accumulation housing makes heat accumulating and case material easily realize the phase change expansion coupling, reduces or avoids the long-term use procedure of heat accumulation housing the situations such as damaged crack to occur; (2) heat accumulation-heat transmission equipment is simple in structure, facilitates workshop processing, convenient transportation; (3) carry out pipeline beyond heat accumulation enclosure interior cavity and connect, on-the-spot installation is convenient; (4) heat accumulation case material economy, corrosion-resistant, and the sensible heat storage capacity is provided, overall heat accumulation cost is low; (5) heat accumulation-heat-exchange system facilitates detection, maintenance and heat accumulation-heat exchange unit to change; (6) heat accumulation-heat exchange unit transports and facility is installed, and can whole unified being transported to assemble the place after completing, then constitute heat-storing device by a plurality of heat storage units easily.
Description of drawings
Fig. 1 is the structural representation of the first embodiment of heat accumulation-heat transmission equipment of the present utility model.
Fig. 2-1st, the heat accumulation case side TV structure schematic diagram of the first embodiment of heat accumulation-heat transmission equipment of the present utility model.
Fig. 2-2nd, the another kind of side-looking structural representation of the heat accumulation housing of the first embodiment of heat accumulation-heat transmission equipment of the present utility model.
Fig. 2-3rd, another side-looking structural representation of the heat accumulation housing of the first embodiment of heat accumulation-heat transmission equipment of the present utility model.
Fig. 3 is the structural representation of heat-obtaining heat exchange pipeline in the first embodiment of heat accumulation-heat transmission equipment of the present utility model.
Fig. 4 is the structural representation of the second embodiment of heat accumulation-heat transmission equipment of the present utility model.
The specific embodiment
With reference to the accompanying drawings specific embodiments of the present utility model is described in detail.
The first embodiment
Fig. 1 is the structural representation of the first embodiment of heat accumulation-heat transmission equipment of the present utility model.This heat accumulation-heat transmission equipment comprises heat accumulation-heat exchange unit that a plurality of laminated array are arranged; As shown in Figure 1, heat accumulation-heat exchange unit in the first embodiment comprises heat accumulation housing 101, the heat-exchanger rig 102 that is placed in the heat accumulating 106 of described heat accumulation housing 101 internal cavities and is arranged in described heat accumulating, described heat accumulation housing 101 internal cavities tops are open, and in described heat accumulation housing the horizontal cross-sectional area of the cavity of storage heat accumulating along increasing gradually on short transverse; Described heat accumulation housing 101 has the sensible heat heat storage capacity.106 of heat accumulation housing 101 and heat accumulatings are furnished with corrosion-resistant intermediate layer.
Mainly described a kind of heat accumulation-heat exchange unit in the first embodiment, this heat storage units length is preferably less than 10m, with manufacturing, transportation and the installation that facilitates the heat storage can structure.the horizontal cross-sectional area of the cavity of described heat accumulation housing 101 storage heat accumulatings is along highly increasing gradually in the side, preferably, the side wall surface of cavity is arranged away from central shaft continuously along the direction that highly rises, be for example uncovered trapezoidal cylinder or uncovered bucking ladder cavity structure arrangement, as shown in Fig. 2-1, the relative high position of the short transverse of side wall surface is corresponding to the distance L 2 of the distance L 1 of central axis lower position relative to short transverse corresponding to central axis, clearly the L1 distance is greater than the L2 distance, thereby when making inner heat accumulating 106 for example inorganic salts change in volume occurring because of phase transformation or variations in temperature, the pressure that outwards expands can be subdued, the expansion of volume is development upwards, because the top in space in housing is open, so can not cause the infringement of breaking to housing, in embodiment one, the interior space of described heat accumulation housing can also comprise the cavity of a plurality of storage heat accumulatings, and the horizontal cross-sectional area of the cavity of single or whole storage heat accumulating reaches and avoids heat accumulation-heat exchange unit repeatedly the crack situation occurring after frequent cycle along progressively increasing on short transverse, in the heat accumulation housing, one or more sectional areas can be arranged along the diminishing isolated solid-state device 108 of short transverse in the space in addition, and as shown in Fig. 2-2, described spacer assembly 108 can for taper shape, trapezoidal shape or pyramid, be arranged at heat accumulation housing cavity inside, perhaps a plurality of spacer assemblys are arranged along interval, heat accumulation housing cavity depth aspect or are arbitrarily arranged, as shown in Fig. 2-3, heat accumulation housing 101 local arrays are arranged a plurality of spacer assemblys 108, within heat accumulating is arranged in cavity between spacer assembly side wall surface and another spacer assembly side wall surface and heat accumulation inner walls face, can store the horizontal sectional area in space of heat accumulating 106 in described cavity along increasing continuously on the direction that highly rises, when the heat accumulating 106 of cavity inside change in volume occurs because of phase transformation or variations in temperature, the volume of the bootable heat accumulating 106 of this structure enlarge upward and not oppose side wall produce excessive pressure, the heat accumulation housing swelling fracture that can effectively avoid the heat accumulating thermal expansion to cause.
Described corrosion-resistant intermediate layer 107 is arranged between heat accumulation housing 101 and heat accumulating 106, sees Fig. 2-1 or Fig. 2-2, can effectively avoid direct contact of 106 of heat accumulation housing 101 and heat accumulatings, prevents or slowing down corrosion; The material in corrosion-resistant intermediate layer 107 is whole material, and the seepage of avoiding seam to cause is specially aluminium or stainless steel or carbon steel or graphite material or carbon steel bellows or graphite paper or carbon fibre initial rinse fabric; Corrosion-resistant intermediate layer 107 is for example carbon fibre initial rinse fabric or graphite paper, the arrangement of carbon fibre initial rinse fabric is specially, after 101 demouldings of heat accumulation housing, the inner fixedly carbon fibre initial rinse fabric of high-temp epoxy glue that passes through of heat accumulation housing 101, then with 101 sealings of heat accumulation housing, pass into 1MPa, the steam 10 minutes of 160 ℃, the rear thawing of being heated of the high-temp epoxy glue on carbon fibre initial rinse fabric; After condensation, form a complete housing with heat accumulation housing 101; Carbon fibre initial rinse fabric or graphite paper can prevent the corrosion of 106 pairs of heat accumulation housings 101 of heat accumulating, preferably, can get rid of the corrosion of 106 pairs of heat accumulation housings 101 of heat accumulating in hot environment, avoid heat accumulating 106 oozing out to heat accumulation housing 101.
In another embodiment, heat accumulation housing 101 adopts one-step method to make and assemble with corrosion-resistant intermediate layer 107, before 101 preparations of heat accumulation housing, with corrosion-resistant intermediate layer 107, be for example aluminium or stainless steel material, be placed in heat accumulation housing 101 intracavity sidewalls, after the demoulding, form heat accumulation housing 101 and corrosion-resistant intermediate layer 107 integral structures.Described corrosion-resistant intermediate layer 107 is furnished with fin or the pillar construction that inserts in the heat accumulation housing towards heat accumulation housing 101 sides, and fin or pillar construction integral body are non-sawtooth design; So can strengthen the bonding strength between corrosion resistant intermediate layer 107 and heat accumulation housing 101, realize that large-area connection simultaneously, can overcome the dockingundocking that expands with heat and contract with cold and cause that causes because Temperature Matching is inconsistent.The aluminium sheet of thin layer or corrosion resistant plate or be embedded in inside concrete by the sheet material of ripple struction or foldable structure, intercept direct contact the between heat accumulating 106 and concrete, reduce the direct high temperature corrosion of 106 pairs of heat accumulation housings 101 of heat accumulating, increase decay resistance and the thermal stability of heat accumulation housing 101, and can overcome the disengaging of corrosion-resistant intermediate layer 107 that heat accumulating 106 and heat accumulation housing 101 cause because expanded by heating is inconsistent and heat accumulation housing 101.
Heat accumulating 106 is filled in heat accumulation housing 101 internal cavities, mixes but heat accumulating 106 is liquid researching of sensible heat storage material or liquid sensible heat material researching of sensible heat storage material or the phase-change heat-storage material of mushy stage conversion use or phase-change heat-storage material mixes use with solid matter the phase-change heat-storage material that uses with solid matter.Described liquid researching of sensible heat storage material, for example inorganic salts or inorganic salt mixt or low-melting-point metal or low-melting point metal alloy or conduction oil; The high-temperature stability of the salt-mixture of sodium nitrate 60Wt%+ potassium nitrate 40Wt% for example, utilizable sensible heat heat accumulation temperature range is 300 ℃ ~ 550 ℃, perhaps sodium metal has good heat accumulation and the capacity of heat transmission, and realize good well-matched CTE between heat-exchanger rig, contact is good, the long-term use do not have the gap yet, utilizes the sensible heat of heat accumulating 106 or storage and the output that latent heat carries out heat; When carrying out the heat storage, researching of sensible heat storage material absorbs heat, and temperature raises; When carrying out heat output, the researching of sensible heat storage material release heat, temperature reduces; Further, liquid researching of sensible heat storage material mixes with solid matter in the researching of sensible heat storage material that uses, and solid matter is ceramic fine bead or ceramic or cobblestone, metal iron filings, magnesia brick powder, graphite powder; Preferably, ceramic or ceramic fine bead are arranged in researching of sensible heat storage material, utilize the thermal storage performance of solid matter self to carry out heat accumulation, simultaneously the good good contact that guarantees liquid researching of sensible heat storage material and heat-exchanger rig.The use of this researching of sensible heat storage material, can guarantee that 101 of this heat accumulating 106 and heat accumulation housings and this heat accumulating 106 have good contacting with 102 of heat-exchanger rigs, good heat conduction effect, the difference of each storeroom thermal coefficient of expansion is less simultaneously, can damaging property extruding force, guarantee the sealingly secure of heat accumulation housing 101.
Further, but described phase-change heat-storage material is the material of solid-liquid conversion, described phase-change heat-storage material is mixture or low-melting-point metal or the low-melting point metal alloy of inorganic salts or inorganic salts, and for example inorganic salts are sodium nitrate or potassium nitrate simple substance or specific proportioning mixture both; The salt-mixture low-melting-point metal that is specially sodium carbonate or sodium nitrate or potassium nitrate or sodium chloride or NaOH or sodium nitrate 60Wt%+ potassium nitrate 40Wt% is zinc, magnesium, aluminium or three's specific proportioning alloy; Utilize the latent heat of phase change of phase-change heat-storage material to carry out storage and the output of heat, phase-change heat-storage material absorbs a large amount of heat when carrying out the heat storage, and temperature rises to phase transition temperature and undergoes phase transition, gradually by the solid-state liquid state that is melted into; When carrying out heat output, the heat transferring medium water input that heat-obtaining heat exchange pipeline 104 internal run-throughs flow, after absorbing the heat of heat accumulating 106, become the water vapour with internal heat, when the temperature of phase-change heat-storage material drops to phase transition temperature, phase-change heat-storage material undergoes phase transition, and becomes solid-state by settable liquid gradually.Phase-change heat-storage material mixes the phase-change heat-storage material that uses with solid matter; Described solid matter is ceramic fine bead or ceramic or cobblestone, metal iron filings, magnesia brick powder, graphite powder.Preferably, described solid matter is ceramic fine bead or ceramic, the inorganic salts density such as its density and sodium nitrate or potassium nitrate are close, be suspended in well in heat accumulating, effectively reduce the change in volume of phase-change heat-storage material in phase transition process, the destruction of causing the heat accumulation housing is impacted in reduction because of the phase-change heat-storage material circulating phase-change; For example, phase-change heat-storage material is the nitrate mixture, its fluid density 1900kg/m3; Density of solid 2300kg/m3, after being phase-changed into liquid state, change in volume is 17.4%; To account for 30%(suitable with the nitrate mixture density when solid matter ceramic addition, and not with its phase transformation), after being phase-changed into liquid state, change in volume is 12.1%; To account for 50%(suitable with the nitrate mixture density when solid matter ceramic addition, and not with its phase transformation), after being phase-changed into liquid state, change in volume is 8.7%.
preferably, evenly mix highly heat-conductive material in heat accumulating 106, even interpolation copper wire in liquid researching of sensible heat storage material or liquid and solid-state different material mix the researching of sensible heat storage material that uses for example, aluminium wire, the materials such as iron wire, increase the heat storage capacity of heat accumulating 106, and make heat accumulating 106 and heat-exchanger rig 102 or heat accumulating 106 and heat accumulation housing 101 in the process of carrying out heat exchange, the better capacity of heat transmission is arranged, avoid causing because heat accumulating 106 capacity of heat transmission are poor that heat accumulating 106 and heat accumulation housing 101 thermal expansion degree varies cause, and then corrosion-resistant intermediate layer 107 breaks away from from heat accumulation housing 101 inwalls.
Further, described heat accumulation housing 101 cavitys are by lid 103 sealing, and the inner space outside heat accumulating 106 adds protective gas, reduce for example contacting of air and heat accumulation housing 101 and heat accumulating 106 of ambient atmos, increase the service life.
Heat-exchanger rig 102 is arranged in above-mentioned heat accumulating, as shown in figures 1 and 3, heat-exchanger rig 102 comprises deposits hot heat exchange pipeline 105 and heat-obtaining heat exchange pipeline 104, and described depositing is the trend layout that progressively raises on hot heat exchange pipeline 105 and/or heat-obtaining heat exchange pipeline 104 short transverse from bottom to top; Preferably, be furnished with fin depositing on hot heat exchange pipeline 105 and heat-obtaining heat exchange pipeline 104.This deposits for example steam of the interior heat transferring medium of hot heat exchange pipeline 105, and the path from up to down; And the heat transferring medium water for example in the heat-obtaining heat exchanger tube, the path is from bottom to top; So strengthen and deposit in thermal process superheated steam or saturated vapor and be condensed into condensed water and flow along gravity direction, the gravity that uncondensed vapor is positioned at condensed water is realized automatically separating in the other direction; And in the heat-obtaining process, aqueous water rises and obtains heat, and after part became saturated vapor or superheated steam, steam was arranged in the gravity negative side operation of aqueous water, avoids the phenomenons such as water hammer, vibration to occur.
Fig. 3 is the structural representation of heat-obtaining heat exchange pipeline in the first embodiment of heat accumulation-heat transmission equipment of the present utility model; Heat transferring mediums in heat-obtaining heat exchange pipeline 104 are inputted from the lower end, and upper end output is taken out the heat of heat accumulating inherence and utilized; Be the step rising on heat-obtaining heat exchange pipeline 104 whole height directions and arrange, be roundabout arrangement on width, be " bow " font on length direction and arrange.This arrangement has increased the heat exchange area of heat-obtaining heat exchange pipeline 104, has improved heat exchange efficiency.What need specified otherwise is, deposit hot heat exchange pipeline 105 and heat-obtaining heat exchange pipeline 104 in heat accumulation housing 101 inner space interlaced arrangement, the arrangement of depositing hot heat exchange pipeline 105 is similar to the arrangement of heat-obtaining heat exchange pipeline 104, difference is: deposit heat transferring medium in hot heat exchange pipeline 105 from upper end input, lower end output, the heat of heat transferring medium is taken out pass to heat accumulating and store.Need to prove, the heat-exchanger rig 102 also conduit running pattern that combines of employing level simplifiedly and rising pattern obtains above-mentioned effect, so can obtain convenient manufacturing process and lower manufacturing cost.Further, the heat exchange pipeline of heat accumulation-heat exchange unit that a plurality of laminated array of the first embodiment are arranged connects beyond described heat accumulation enclosure interior space, make each heat storage units the workshop manufacturing and independent dispersion transportation separately, arrive behind the use scene hoisted in position one by one, and then being connected in series of heat transfer conduit of completing easily whole heat accumulation-heat transmission equipment, easy construction is simple.The input of heat transferring medium and output can be arranged in a side of heat accumulation-heat transmission equipment, facilitate management and running, install simple and easyly, and cost is low.
In addition, for the heat in heat-obtaining heat accumulation housing from the heat accumulation housing well, can with in the part heat-exchanger rig deposit hot heat exchange pipeline and the heat-obtaining heat exchange pipeline is arranged in the heat accumulation housing; More preferred scheme: in order to reduce processing and manufacturing cost and the implementation cost of heat accumulation-heat-exchanger rig, do not arrange heat-exchanger rig in the heat accumulation housing, and add the interpolation material of high heat conductance in described heat accumulation enclosure interior, materials such as iron filings, graphite, magnesia brick powder is deposited heat and heat-obtaining with what strengthen heat accumulation enclosure interior heat.
Heat accumulation housing integral hollow in the first embodiment is airtight, for example utilizes the lid of heat accumulation housing and heat accumulation housing cavity to form the Integral sealing cavity, and this lid also can be the polycrystalline substance of the upper strata heat accumulation housing that is arranged in this heat accumulation housing; Add protective gas in this heat accumulation housing closed cavity; the minimizing ambient atmos contacts with heat accumulation housing and heat accumulating; for example reduce the rotten situation of burn into of the corrosion-resistant intermediate layer of causing and heat accumulation housing and heat accumulating in the environment of high temperature air, increase the service life.The outer surface cloth of described heat accumulation-heat transmission equipment is equipped with insulation construction and outermost overcoat, not only each heat accumulation-heat-exchanger rig is incubated, and can prevents effectively that the harmful substances such as acid rain to the corrosion of heat accumulation housing, having improved energy-saving efficiency.
The second embodiment
Fig. 4 is the structural representation of the second embodiment of heat accumulation-heat transmission equipment of the present utility model.As shown in Figure 4, this heat accumulation-heat transmission equipment comprises heat accumulation-heat exchange unit 421 ~ heat accumulation of arranging a plurality of laminated array in heat accumulation-heat exchange unit 411 ~ heat accumulation that a plurality of laminated array in the same layer array group arrange-heat exchange unit 413 and another layer array group and arranging-heat exchange unit 423, each heat accumulation-heat exchange unit is closely arranged, and saves the space; Heat accumulation-heat exchange unit becomes array group or heat accumulation-heat exchange unit rule dislocation laminated array on short transverse to be arranged to array group in stacked arranged in arrays on short transverse; It is so, multilayer laminated that arranged in arrays formation heat accumulation-heat transmission equipment is whole; For example a plurality of square structures of rule dislocation laminated array layout change array directions dislocation layout, increase Systems balanth, and for example anti-seismic performance is good.This second embodiment is preferred more than 10 layers on short transverse, so that the heat transmission between each the heat accumulation-heat exchange unit on the reduction short transverse, so obtain the good mesolimnion structure of whole heat accumulation-heat transmission equipment, can conveniently obtain obvious mesolimnion and then obtain the high-grade quantity of heat storage through depositing heat, also can obtain obvious mesolimnion and then obtain for example water-steam parameters high-grade of high-grade heat transferring medium through heat-obtaining easily; Comprehensively utilize fully high-grade thermal source in heat accumulation-heat transmission equipment.Preferably, heat accumulation-heat exchange unit on differing heights has different phase-change heat-storage materials or liquid researching of sensible heat storage material, and for example the heat accumulating in the heat accumulation-heat exchange unit 411 of relative high position is that phase-change heat-storage material is that potassium nitrate heat accumulating (334 ℃ of transformation temperatures) or heat accumulating are that liquid researching of sensible heat storage material sodium nitrate 60Wt%+ potassium nitrate 40Wt%(sensible heat heat accumulation temperature range is 300 ℃ ~ 550 ℃); Phase-change heat-storage material in the heat accumulation-heat exchange unit 421 of lower position is sodium nitrate heat accumulating (308 ℃ of transformation temperature) relatively.
Add protective gas in heat accumulation-heat exchange unit array integral sealing, seal cavity, reduce extraneous harm gas to the corrosion of heat accumulating and heat accumulation housing, improve the serviceability of heat accumulating.The height of described heat storage and exchange unit 411 is preferably 0.5m for example less than 1m, is convenient to transportation and installs.Each heat accumulation-heat exchange unit for example heat accumulation-heat exchange unit 411 disposed outside has heat accumulation housing 401, and heat accumulation housing 401 internal placement have heat-exchanger rig.
Heat-exchanger rig comprises deposits hot heat exchange pipeline 435 and heat-obtaining heat exchange pipeline 434, implements the input and output of heat; Described a plurality of heat accumulation-heat exchange unit horizontal array is arranged stratification, and it is whole that Multi-layer staggered is superimposed as the heat storage can body structure; Connected in series or in parallel by the heat exchange pipeline between single heat accumulation-heat transmission equipment output, input port, form complete heat accumulation-heat-exchange system; Fig. 4 gets the bid and understands the flow path of heat transferring medium, and hot heat exchange pipeline 435 is similar to the arrangement of heat-obtaining heat exchange pipeline 434 owing to depositing, and only indicates the path of flowing through of depositing hot heat exchange pipeline 435 in Fig. 4.In the heat input process of depositing heat, heat transferring medium is for example superheated vapour, flow into each heat accumulation-heat exchange unit from depositing hot heat exchange pipeline 435, hot heat exchange pipeline 435 is interior carries out heat exchange when mobile depositing as overheated steam, the superheated vapour temperature descends gradually, when temperature dropped to the transformation temperature of water, overheated steam condensed into water, and the water unification in the heat exchange pipeline that each short transverse descends is by depositing hot heat exchange pipeline 435 outputs; In the heat output procedure of heat-obtaining, heat transferring medium for example water carries out heat exchange from the heat exchange pipeline that heat-obtaining heat exchange pipeline 434 flow in each heat accumulation-heat exchange unit such as heat accumulation-heat exchange unit 411, the temperature of water raises gradually, undergo phase transition when temperature rises to the phase transition temperature of water, become steam by the water of liquid state; Continuation rising along with temperature becomes overheated steam, and each heat accumulation-heat exchange unit is exported by heat-obtaining heat exchange pipeline 434 as the steam in heat accumulation-heat exchange unit 411 or overheated steam unification, in order to using.Further, the heat exchange pipeline of heat accumulation-heat exchange unit that described a plurality of laminated array is arranged connects beyond described heat accumulation enclosure interior space, conveniently complete being connected in series of heat transmission of whole heat accumulation-heat transmission equipment, for example the input of heat transferring medium and output are in a side of heat accumulation-heat transmission equipment, facilitate management and running, install simple and easyly, cost is low.
The 3rd embodiment
The concrete enforcement of the 3rd embodiment: heat accumulation-heat transmission equipment unit size is long is 10m, and width is 2m, is highly 0.5m, the nearly 20T of unit gross mass, heat accumulation total amount 0.8MWh, wherein the equipment heat storage can is concrete, heat accumulating is sodium nitrate, and quality both is respectively 10T; Same layer has 5 identical device unit and is arranged in juxtaposition, and totally 20 layers, heat accumulation-heat transmission equipment overall dimensions is the cubic structure of 10m; Total heat accumulation quality 2000T, heat accumulation heat 80MWh; Suppose that the concrete price is 150 yuan/cubic metre, 3500 yuan/tons of sodium nitrate prices; Total price is 3,300,000 yuan; Conventional 316 material heat storage cans store the sodium nitrate system: heat storage can size external diameter 10m, and thickness 0.02m, height 10m, the nearly 50T of tank body gross mass, sodium nitrate gross mass 1200T, total heat accumulation heat is 82MWh; 2.5 ten thousand yuan/T of tank body price, totle drilling cost is 5,400,000 yuan (cost price is not all added the heat exchange pipeline cost); As seen the better economy of the utility model scheme.
What need specified otherwise is the arrangement that heat exchange pipeline that the short transverse of heat accumulation-heat exchange unit internal placement rises can have other, for example folding the rising connects layout, the heat transferring medium of HTHP in depositing thermal process, for example water vapour enters from the upper end of depositing hot heat exchange pipeline, complete deposit heat after, flow out from the lower end; Cryogenic high pressure heat transferring medium water for example in the process of heat-obtaining enters from the lower end of heat-obtaining heat exchange pipeline, after completing heat-obtaining, flows out from the upper end.Heat accumulation-heat exchange unit can also array horizontally disposed, heat transferring medium enters from the other end from level one end and flows out, and completes heat storage and the heat-obtaining of heat accumulation-heat exchange unit.The heat accumulation housing of heat accumulation-heat exchange unit is corrosion resistant concrete, for example contains the Graphite concrete of graphite, reduces the specific phase change heat storage material to the corrosion of heat accumulation housing itself.
Obviously, under the prerequisite that does not depart from true spirit of the present utility model and scope, the utility model described here can have many variations.Therefore, all are predictable change to those skilled in the art, within all should being included in the scope that these claims contain.The utility model scope required for protection is limited by described claims.
Claims (24)
1. heat accumulation-heat transmission equipment, comprise heat accumulation-heat exchange unit that a plurality of laminated array are arranged, each described heat accumulation-heat exchange unit comprises the heat accumulation housing, be placed in the heat accumulating of described heat accumulation enclosure interior cavity and the heat-exchanger rig that is arranged in described heat accumulating, it is characterized in that, the cavity top of described heat accumulation enclosure interior is open, and in described heat accumulation housing the horizontal cross-sectional area of the cavity of storage heat accumulating along increasing gradually on short transverse; Described heat accumulation housing has the sensible heat heat storage capacity.
2. a kind of heat accumulation-heat transmission equipment according to claim 1, is characterized in that, the cavity side wall of described heat accumulation housing is arranged away from central shaft continuously along the direction that highly rises.
3. described a kind of heat storage and exchange equipment according to claim 1, is characterized in that, the spacer assembly that sectional area reduces gradually along the height ascent direction is arranged in described heat accumulation enclosure interior space.
4. a kind of heat accumulation-heat transmission equipment according to claim 2, is characterized in that, between described heat accumulation housing and heat accumulating, corrosion-resistant intermediate layer arranged.
5. a kind of heat accumulation-heat transmission equipment according to claim 1, is characterized in that, described heat accumulation-heat exchange unit is stacked arranged in arrays on short transverse, forms array group.
6. a kind of heat accumulation-heat transmission equipment according to claim 5, is characterized in that, described heat accumulation-heat exchange unit rule dislocation laminated array on short transverse is arranged, consists of heat accumulation-heat transmission equipment whole.
7. a kind of heat accumulation-heat transmission equipment according to claim 5, is characterized in that, the layout number of plies on described heat accumulation-heat exchange unit short transverse is greater than 10 layers.
8. a kind of heat accumulation-heat transmission equipment according to claim 1, it is characterized in that, the interior space of described heat accumulation housing comprises the cavity of a plurality of storage heat accumulatings, and the horizontal cross-sectional area of the cavity of single or whole storage heat accumulating is along progressively increasing on short transverse.
9. a kind of heat accumulation-heat transmission equipment according to claim 1, is characterized in that, the material of described heat accumulation housing is cement or concrete or stone material or metal or glass or pottery or graphite.
10. a kind of heat accumulation-heat transmission equipment according to claim 4, it is characterized in that, the material in the corrosion-resistant intermediate layer between described heat accumulation housing and heat accumulating is thin plate or the concavo-convex thin plate of ripple or graphite paper or the carbon fibre initial rinse fabric of aluminium or stainless steel or carbon steel material.
11. a kind of heat accumulation-heat transmission equipment according to claim 10 is characterized in that, the corrosion-resistant intermediate layer material that each interior space of described heat accumulation housing or interior space cell use is whole material, the seepage of avoiding seam to cause.
12. a kind of heat accumulation-heat transmission equipment according to claim 11 is characterized in that, described corrosion-resistant intermediate surface is furnished with fin or the pillar construction that inserts in the heat accumulation housing to the heat accumulation case side.
13. a kind of heat accumulation-heat transmission equipment according to claim 1 is characterized in that, adds the interpolation material of high heat conductance in described heat accumulation enclosure interior or heat accumulating.
14. a kind of heat accumulation-heat transmission equipment according to claim 1 is characterized in that, described heat accumulation housing cavity sealing, and protective gas is added in the inner space.
15. according to claim 5 or 6 described a kind of heat accumulation-heat transmission equipments is characterized in that, add protective gas in described heat accumulation-heat exchange unit array integral sealing, seal cavity.
16. a kind of heat accumulation-heat transmission equipment according to claim 1 is characterized in that, the outer surface cloth of described heat accumulation-heat transmission equipment is equipped with insulation construction and outermost overcoat.
17. a kind of heat accumulation-heat transmission equipment according to claim 1, it is characterized in that, mix but described heat accumulating is liquid researching of sensible heat storage material or liquid researching of sensible heat storage material researching of sensible heat storage material or the phase-change heat-storage material of mushy stage conversion use or phase-change heat-storage material mixes use with solid matter the phase-change heat-storage material that uses with solid matter.
18. a kind of heat accumulation-heat transmission equipment according to claim 17 is characterized in that, described phase-change heat-storage material is inorganic salts or low-melting-point metal.
19. a kind of heat accumulation-heat transmission equipment according to claim 17 is characterized in that, described liquid researching of sensible heat storage material is inorganic salts or low-melting-point metal or conduction oil.
20. a kind of heat accumulation-heat transmission equipment according to claim 17 is characterized in that, described solid matter is ceramic fine bead or ceramic or cobblestone, metal iron filings, magnesia brick powder, graphite powder.
21. a kind of heat accumulation-heat transmission equipment according to claim 1 is characterized in that, described heat-exchanger rig comprises deposits hot heat exchange pipeline and heat-obtaining heat exchange pipeline.
22. a kind of heat accumulation-heat transmission equipment according to claim 21 is characterized in that, described depositing is the trend layout that progressively raises on hot heat exchange pipeline and/or the short transverse of heat-obtaining heat exchange pipeline from bottom to top.
23. a kind of heat accumulation-heat transmission equipment according to claim 22 is characterized in that, described depositing on hot heat exchange pipeline and heat-obtaining heat exchange pipeline is furnished with fin.
24. a kind of heat accumulation-heat transmission equipment according to claim 23 is characterized in that, heat accumulation-heat exchange unit that a plurality of laminated array are arranged described deposited hot heat exchange pipeline and/or heat-obtaining heat exchange pipeline and connects beyond heat accumulation enclosure interior space.
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| CN2013202418713U CN203274569U (en) | 2013-05-07 | 2013-05-07 | Heat accumulation-heat-exchange equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557732A (en) * | 2013-11-13 | 2014-02-05 | 吉林大学 | Synergistic control method for phase-change energy storage |
| CN104142079A (en) * | 2013-05-07 | 2014-11-12 | 北京兆阳光热技术有限公司 | Heat storage-heat exchange equipment |
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2013
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104142079A (en) * | 2013-05-07 | 2014-11-12 | 北京兆阳光热技术有限公司 | Heat storage-heat exchange equipment |
| CN103557732A (en) * | 2013-11-13 | 2014-02-05 | 吉林大学 | Synergistic control method for phase-change energy storage |
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Effective date of registration: 20131113 Address after: 100070 Beijing City, Fengtai District science and Technology Park Fung Fu Road No. 4 Building 4 room 22B04 Patentee after: Beijing TeraSolar Photothermal Technology Co., Ltd. Address before: 101102, Beijing Zhongguancun Tongzhou District science and Technology Park, Tongzhou Park Jinqiao technology industry base, King Sheng, two South 37 Street Patentee before: Beijing Zhaoyang Energy Technology Co., Ltd. Patentee before: Liu Yang |
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