CN100547337C - Phase change heat storage heat supply device - Google Patents

Phase change heat storage heat supply device Download PDF

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Publication number
CN100547337C
CN100547337C CNB2006100249908A CN200610024990A CN100547337C CN 100547337 C CN100547337 C CN 100547337C CN B2006100249908 A CNB2006100249908 A CN B2006100249908A CN 200610024990 A CN200610024990 A CN 200610024990A CN 100547337 C CN100547337 C CN 100547337C
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CN
China
Prior art keywords
heat
valve
phase change
water
involute
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Expired - Fee Related
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CNB2006100249908A
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Chinese (zh)
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CN1821662A (en
Inventor
苏树强
曹宝文
丁志华
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Huangming Solar Energy (Shanghai) Co., Ltd.
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苏树强
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Priority to CNB2006100249908A priority Critical patent/CN100547337C/en
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Publication of CN100547337C publication Critical patent/CN100547337C/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/20Solar thermal
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14Thermal energy storage
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30Systems combining energy storage with energy generation of non-fossil origin

Abstract

The present invention relates to a kind of phase change heat storage heat supply device.Be characterized in, comprise the extra power heater, water-circulating pump, phase change heat accumulator, A valve, the B valve, C valve, fin, shower, described extra power heater water side connects the phase change heat accumulator water inlet end by water-circulating pump, described phase change heat accumulator water side connects A valve, B valve, C valve respectively, and wherein the A valve connects shower, the B valve connects fin, C valve connection extra power heater water inlet end.Adopt direct phase-transition heat-storage exotherm, and adopt three-dimensional double involute storage heater, guaranteed the uniformity that heat exchanger tube distributes in the storage heater, heat-storage agent heat absorption and release have been improved, reduce water pipe resistance and heat transfer temperature difference, increased the unit volume heat storage capacity, reduced equipment volume.Farthest utilize solar energy, used heat and low-price electricity, and guaranteed the stability of hot water supply.

Description

Phase change heat storage heat supply device
Technical field
What the present invention relates to is a kind of heating plant, relates in particular to a kind of heating plant that has phase change heat accumulator, belongs to the energy utilization technology field.
Background technology
Current, China reaches to world wide, the needs of rapid economy development and household electricity sharp increase are not satisfied in the growth of electric power, short of electricity situation in the whole nation still exists, the network load rate is low, system's peak valley difference is big, peak power wretched insufficiency, peak-valley difference account for the ratio of peak load up to 30%.
Production or household electricity heat supply occupy most in the AND ENERGY RESOURCES CONSUMPTION IN CHINA structure, produce or life cost for saving, life or produce required electricity consumption hot-water supply system and adopt energy variation, its weak point, all there are problem of environmental pollution in traditional combustion gas, fuel oil, coal burning water heating device, apparatus for heating water by solar energy has had wide prospect, but solar energy has unstability and transience, regenerative apparatus must be arranged, the tradition heat storage type all adopts sensible heat type water heat storage type, shortcomings such as this mode amount of stored heat is little, the heat storage volume is big, heat release instability.Developing the compound energy type hot water apparatus with high-performance regenerative apparatus has become the focus of current research.
By prior art documents, application number is CN200410036090.6's the patent of invention of " a kind of combined type phase-changing energy-storing solar water heater ", the described water heater of patent application is the indirect phase-transition heat-storage type of a separate type water heater, the accumulation of phase change heat storage material heat and release are indirect supplies, and solar energy or combustion gas or electrically heated medium separate with hot water fully with life.The phase-transition heat-storage body is disperseed to be positioned in the water or oil that loads in the water tank, phase-change material institute amount of stored heat passes to water or oil in the water tank through the phase-change material body case, pass to domestic water by water in the water tank or oil through heat exchanger again, this twice heat exchange all needs the enough big heat exchange area and the enough big temperature difference, because the phase-change material body is scattered in the water tank, the phase change cold-storage body is less relatively under the unit volume, it is very fast to add the decay of accumulation of heat of phase-change material body and exothermic process, can not play good accumulation of heat and exothermal effect, so equipment comes from water or oil in the water tank in the supply of run duration heat, or coming from combustion gas or electric heating, the heat of solar energy accumulation can not get good application.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of hybrid direct cool-storage type heating plant, little, the province's energy consumption of volume, the phase change heat storage heat supply device of water temperature stability.
Technical solution of the present invention: a kind of phase change heat storage heat supply device, be characterized in, comprise the extra power heater, water-circulating pump, phase change heat accumulator, the A valve, B valve, C valve, fin, shower, described extra power heater water side connects the phase change heat accumulator water inlet end by water-circulating pump, and described phase change heat accumulator water side connects A valve, B valve, C valve respectively, and wherein the A valve connects shower, the B valve connects fin, C valve connection extra power heater water inlet end.
Described phase change heat accumulator is by outer heat-preservation cylinder, two groups of involute arms, first group of involute arm outer input main, second group of involute arm outer output main, first group of involute props up tube hub output main, second group of involute props up tube hub input main, support, the phase-transition heat-storage agent is formed, every group of involute arm is parallel to every group of input, output main, every group of involute arm is fixed on the support, described phase change heat accumulator outside is with heat-preservation cylinder, inwardly is filled with heat-storage agent along heat-preservation cylinder, is used to finish the absorption and the release of heat.
Described phase change heat accumulator is three-dimensional double involute phase change heat accumulator, and first group of arm and second group of arm of this phase change heat accumulator are the wrong row of solid space.
Described extra power heater is wherein one or more energy combination heaters of solar energy, regenerated heat energy, fuel heater, electric energy.
Beneficial effect of the present invention: 1. adopt direct phase-transition heat-storage exotherm, directly supply with the domestic hot-water after the heat-storage agent release heat through phase change heat accumulator, in the variety of energy sources utilization, has the preferential directly supply of solar energy, reduced heat transfer temperature difference, increase the unit volume heat storage capacity, reduced equipment volume.
2. three kinds of pattern workflows have farthest been utilized solar energy, used heat and low-price electricity, and have guaranteed the stability of hot water supply.
3. the three-dimensional double involute structure of storage heater has reduced the water pipe resistance when guaranteeing heat exchange area, has guaranteed the uniformity that heat exchanger tube distributes in the storage heater, has improved heat-storage agent heat absorption and release.
Description of drawings
Fig. 1 is a fundamental diagram of the present invention;
Fig. 2 is the structural representation of phase change heat accumulator.
The specific embodiment:
As shown in Figure 1, the present invention includes: extra power heater 1, water-circulating pump 2, phase change heat accumulator 3, A valve 4, shower 5, B valve 6, fin 7, C valve 8 are formed, extra power heater 1 hot water outlet termination water-circulating pump 2, phase change heat accumulator 3 water inlet end water receiving circulating pumps 1, water outlet termination A valve 4, B valve 6, C valve 8, A valve 4 connects shower 5, and B valve 6 connects fin 7, and C valve 8 connects extra power heater 1.Described extra power heater 1 can be daytime solar energy, industry or life used heat, night electric energy or gas fuel heater, also can be two or more energy combination heaters, mainly be the input of finishing the heating plant heat; Described water-circulating pump 2 mainly is to finish the transfer of heat and the conveying of domestic water; Described phase change heat accumulator 3 is three-dimensional double involute phase change heat accumulator, the release of heat when being mainly used in the storage of heat when finishing extra power input peak and extra power input low ebb, the heat capacity of stable heating device, A valve 4 and B valve 6 are controlled the direction of heat exhaustion respectively, A valve 4 control heats and domestic water or conveying shower, B valve 6 control heats are carried to radiator; Shower is the consumer device of heat and domestic water; Fin 7 is consumer devices of heat; C valve 8 control heats transmit to the outside when externally energy input enters low ebb.
As shown in Figure 2, described phase change heat accumulator 3 is three-dimensional double involute phase change heat accumulator, and outer heat-preservation cylinder 9, first group of involute arm outer input main 10, second group of involute arm outer output main 11, first group of involute arm 12, second group of involute arm 13, first group of involute prop up tube hub output main 14, second group of involute props up tube hub input main 15, support 16 and phase-transition heat-storage agent 17.Outer heat-preservation cylinder 9 is at storage heater 3 outermost layers, first group of involute arm 12 also is attached to first group of involute arm outer input main 10 and first group of involute props up tube hub output main 14, second group of involute arm 13 also is attached to second group of involute arm outer output main 11 and second group of involute props up tube hub input main 15, first group of arm 12 and second group of arm 13 carry out the wrong row of solid space, each arm is fixed on the support 16, phase-transition heat-storage agent 17 fillings outside arm to heat-preservation cylinder.External thermal insulation 9 is mainly the minimizing thermal losses; First group of involute arm outer input main 10 mainly is balanced input pressure, and carries heat transferring medium to first group of involute arm 12; First group of involute arm 12 mainly finished intraductal heat exchange medium and the exchange heat of managing outer heat-storing material 17; It mainly is balanced input pressure that first group of involute props up tube hub output main 14, and accepts first group of involute arm 12 and transport heat transferring medium output; It mainly is balanced input pressure that second group of involute props up tube hub input main 15, and carries heat transferring medium to second group of involute arm 13; Second group of involute arm 13 mainly finished intraductal heat exchange medium and the exchange heat of managing outer heat-storing material 17; Second group of involute arm outer output main 11 mainly is balanced input pressure, and accepts second group of involute arm 13 and transport heat transferring medium output; 16 stable and location arm families of support, the absorption and the release of heat is finished in phase-transition heat-storage agent 17.
As shown in Figure 1, three kinds of pattern workflows of heating plant are as follows:
1: the first kind of accumulation of heat pattern of embodiment.When not having heat exhaustion, extra power heater 1 to receive the heating of solar energy or industrial waste heat or utilizing that night, cheap electricity price was carried out electrical heating, the starting of accumulation of heat pattern, workflow is: A valve 4, B valve 6 are closed, extra power heater 1 is accepted solar energy or industrial waste heat heating, or utilize night cheap electricity price to carry out electrical heating, valve 8 is opened, heat passes to three-dimensional double involute phase change heat accumulator 3 from extra power heater 1 with WATER AS FLOW MEDIUM under the effect of water circulating pump 2, accumulated, heat-storage agent 17 states are by the solid-state liquid state that becomes.
Implement 2: the second kinds of phase transformation heat supply modes.Sufficient and can't obtain solar energy or waste heat the time, C valve 8 is closed in three-dimensional double involute phase change heat accumulator 3 amount of stored heat, the extra power heater quits work.During shower 5 work, A valve 4 is opened, and outside water supply enters through water-circulating pump 2 pressurizations and uses for shower 5 or domestic water after three-dimensional double involute phase change heat accumulator 3 is obtained the heat intensification.During fin 7 work, B valve 6 is opened, and heat passes to fin 7 from three-dimensional double involute phase change heat accumulator 3 with WATER AS FLOW MEDIUM under the effect of water circulating pump 2.The heat-storage agent state is by the solid-state liquid state that becomes.
Implement 3: the third mixes heat supply mode.Sufficient and can't obtain solar energy or waste heat the time in three-dimensional double involute phase change heat accumulator 3 amount of stored heat, the starting of phase transformation heat supply mode, workflow is: C valve 8 is closed, and extra power heater 1 quits work.A valve 4 is opened, and shower 5 work, outside water supply enter through water-circulating pump 2 pressurizations and use for shower after three-dimensional double involute phase change heat accumulator 3 is obtained the heat intensification.B valve 6 is opened, fin 7 work, and heat passes to fin 7 from three-dimensional double involute phase change heat accumulator 3 with WATER AS FLOW MEDIUM under the effect of water circulating pump 2.Heat-storage agent 17 states are by the solid-state liquid state that becomes.
Both needing heat supply, in the time of can obtaining solar energy or waste heat again, the mixed mode starting, workflow is: the 1 preferential heat supply of extra power heater, C valve 8 is opened, A valve 4 is opened, shower work, and outside water supply and the recirculated water after external heater 1 heats mix after water-circulating pump 2 pressurizations are used for shower after entering three-dimensional double involute phase change heat accumulator 3.B valve 6 is opened, and fin 7 work enter radiator 7 heat radiations through the recirculated water after external heater 1 heating after water-circulating pump 2 pressurizations enter three-dimensional double involute phase change heat accumulator 3.When solar energy that obtains when extra power heater 1 or waste heat surpass heat supply and consume, three-dimensional double involute phase change heat accumulator 3 accumulation of heats, heat-storage agent 17 states are by the solid-state liquid state that becomes; Externally the solar energy of energy heater 1 acquisition or waste heat are lower than when consuming, three-dimensional double involute phase change heat accumulator 3 heat releases, and heat-storage agent 17 states are become solid-state by liquid state; When externally the solar energy of energy heater 1 acquisition or waste heat and three-dimensional double involute phase change heat accumulator 3 heat releases were all not enough, electrical heating or gas fuel added hot exposure and assist heating.Heating plant workflow of the present invention is divided three kinds of patterns:
It is as follows to implement this phase change heat storage heat supply device heat capacity: 1. the three-mode workflow design has farthest been utilized solar energy, used heat and low-price electricity, and guaranteed the stability of hot water supply, the heat supply running expense is 1/5 of an electrical heating heat supply running expense, even still less.
2. the three-dimensional double involute structure of storage heater makes the regenerator of equal volume have maximum heat exchange area, and heat exchange area and volume ratio reach 50: 1, the heat exchange rate height, and the heat transfer mean temperature difference can be decreased to 7 ℃; The double involute structure makes the water pipe flow process foreshorten to 1/2, has reduced flow resistance, and three-dimensional coiling structure has guaranteed the uniformity that heat exchanger tube distributes in the storage heater, and it is even to have guaranteed that heat-storage agent holds heat release, does not have the dead angle.
3. heat-storage agent directly contacts with heat exchanger tube, the direct phase-transition heat-storage heat release of agent for storage of coldness, and accumulation of heat heat release average attenuation speed is less than 10%, and overall attenuation is less than 40%.
4. the filling heat-storage agent can make the unit volume heat storage capacity can reach 500kJ/L, and 200L volume heat storage can provide the domestic hot-water of 1500L, can supply 5 bathings of 6 people, can supply 60 squares of house winter heatings 12 hours.

Claims (2)

1. phase change heat storage heat supply device, comprise extra power heater (1), water-circulating pump (2), phase change heat accumulator (3), the A valve, the B valve, the C valve, fin (7), shower (5), described extra power heater (1) water side connects phase change heat accumulator (3) water inlet end by water-circulating pump (2), and described phase change heat accumulator (3) water side connects A valve, B valve, C valve respectively, wherein the A valve connects shower (5), the B valve connects fin (7), and the C valve connects extra power heater (1) water inlet end; It is characterized in that, described phase change heat accumulator (3) is by outer heat-preservation cylinder (9), two groups of involute arms (12,13), first group of involute arm (12) outer input main (10), second group of involute arm (13) outer output main (11), first group of involute props up tube hub output main (14), second group of involute props up tube hub input main (15), support (16), phase-transition heat-storage agent (17) is formed, every group of involute arm is parallel to every group of input, the output main, every group of involute arm is fixed on the support (16), described phase change heat accumulator outside is with heat-preservation cylinder, inwardly is filled with phase-transition heat-storage agent (17) along heat-preservation cylinder, is used to finish the absorption and the release of heat.
2. according to the described phase change heat storage heat supply device of claim 1, it is characterized in that described phase change heat accumulator (3) is three-dimensional double involute phase change heat accumulator; First group of arm and second group of arm of this phase change heat accumulator are the wrong row of solid space.
CNB2006100249908A 2006-03-23 2006-03-23 Phase change heat storage heat supply device Expired - Fee Related CN100547337C (en)

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Application Number Priority Date Filing Date Title
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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101666518B (en) * 2009-08-25 2011-11-16 中国电子科技集团公司第十四研究所 Solar heating heat-accumulating system
CN102444929A (en) * 2011-09-08 2012-05-09 郑德强 Mobile solar heat and power supplying device converting afterheat and waste heat

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1483425A (en) * 1975-05-29 1977-08-17 United Stirling Ab & Co Hot gas engine heater head
CN1462850A (en) * 2003-06-16 2003-12-24 浙江大学 Preheating type heat pump water heater using stored heat caused by phase change
CN1530599A (en) * 2003-02-11 2004-09-22 涛 张 Phase transformation heat storing electrothermal exchanger and intelligent controlling circulating running system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1483425A (en) * 1975-05-29 1977-08-17 United Stirling Ab & Co Hot gas engine heater head
CN1530599A (en) * 2003-02-11 2004-09-22 涛 张 Phase transformation heat storing electrothermal exchanger and intelligent controlling circulating running system
CN1462850A (en) * 2003-06-16 2003-12-24 浙江大学 Preheating type heat pump water heater using stored heat caused by phase change

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Owner name: HIMIN SOLAR (SHANGHAI) CO., LTD.

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