CN1167885C - Phase change type fluid energy storage apparatus - Google Patents
Phase change type fluid energy storage apparatus Download PDFInfo
- Publication number
- CN1167885C CN1167885C CNB001113968A CN00111396A CN1167885C CN 1167885 C CN1167885 C CN 1167885C CN B001113968 A CNB001113968 A CN B001113968A CN 00111396 A CN00111396 A CN 00111396A CN 1167885 C CN1167885 C CN 1167885C
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- China
- Prior art keywords
- phase
- stiff case
- energy
- energy storage
- storage apparatus
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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Abstract
The present invention relates to an energy accumulator adopting phase change to accumulate energy, which comprises a rigid casing and a liquid inlet and a liquid outlet which are communicated with the rigid casing. The energy accumulator is characterized in that a partition body is arranged in the rigid casing, and the inner cavity of the rigid casing is divided into two or more cavities which are not mutually communicated by the partition body; a phase changing working medium is filled into at least one cavity. The energy accumulator has the advantages of large adjustable volume which can reach 90% of the total volume, small pressure change, reduced power consumption of equipment matched with the energy accumulator, and reduced ineffective energy consumption.
Description
Technical field
The invention belongs to accumulator, relate generally to the gas-liquid two-phase that utilizes material and change the energy storage apparatus that carries out accumulation and release energy.
Background technique
At present, in industrial and agricultural production and municipal communal facility, often run into fluid transmission ﹠ distribution and regulate and store.Be normal operation and the operation of keeping production and supply, must in the maintenance system certain pressure and flow be arranged, and often flow be not constant, so the system that keeps of pressure and flow must be arranged.Have in the prior art and establish (liquid refrigerant) that high geopotential energy is accumulated; Have and adopt uninterrupted energy supplement; Have and adopt enclosed space to become accumulation of energy by the auxiliary working substance bullet.These several modes all have himself specific operating range, its bad adaptability, and invalid energy consumption is big, and volume adjusted is little, and volume adjusted generally accounts for 25～30% of jar total measurement (volume), and the poor stability of system.
Summary of the invention
The purpose of this invention is to provide and a kind ofly utilize the material gas-liquid two-phase to change to accumulate and release energy, rational in infrastructure, volume adjusted is big, and invalid energy consumption is low, and can keep the phase change type fluid energy storage apparatus of system's certain pressure and flow.
The present invention includes stiff case and fluid inlet that is communicated with stiff case and outlet, spacer is set in the stiff case, spacer is separated into not connected cavity with the stiff case inner cavity, spacer is a flexible material, and be connected with the internal surface of stiff case, spacer is divided into the stiff case inner cavity more than 2 or 2, and fills phase-change working substance at least in 1 cavity, it is characterized in that the internal surface tie point of spacer and stiff case is even layout.
Flexible inner bag of the present invention (barrier film) is divided into the stiff case inner cavity more than 2, and one of them is communicated with the import and export of fluid, fills phase-change working substance in the other cavity.
Spacer of the present invention also can be a stiff piston, and the internal surface of piston and stiff case is slidingly connected, and stiff case is separated into two not connected cavitys, and one of them is communicated with the import and export of fluid, and another fills phase-change working substance.
The phase-change working substance of filling of the present invention is a hydrocarbons.
Of the present invention rational in infrastructure, phase-change working substance and tank body are isolated by flexible inner bag (barrier film), guarantee that the quality of tank body inner fluid is not secondary polluted.And can select suitable phase-change working substance, wide accommodation according to different working pressures and temperature.It adopts flexible inner bag volume adjusted big, can reach 90% of tank body total measurement (volume), and variation in pressure is little, and working stability can reduce supporting with it equipment power dissipation, reduces invalid energy consumption, improves life of equipment.
The invention will be further described below in conjunction with drawings and Examples:
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention;
Fig. 2 is hydrocarbons saturated vapor pressure and temperature relation figure.
Embodiment
Among Fig. 1, utilize material to have corresponding specific vapor tension at a certain temperature, under this temperature, if ambient pressure is during less than the vapor tension of this material under this temperature, it will constantly evaporate, volumetric expansion; During greater than its vapor tension under this temperature, it will be liquefied, volume-diminished, this gas-liquid two-phase inversion characteristic at ambient pressure.In the bottom of accumulator outer rigid housing 1 fluid output 6 is set, the middle part is provided with fluid input 2, and flexible inner bag 3 is connected with the internal surface of outer rigid housing 1 by link 4, fills phase-change working substance 5 (seeing attached list) in the flexible inner bag 3.Accumulator is received in the fluid feed system, when opening the energy supplement device, the fluid of the certain pressure of supplying with is except that satisfying system requirements, the unnecessary fluid that carries certain energy just is pressed in the accumulator outer rigid housing 1, because system fluid pressure is a little more than the saturation vapour pressure under this state of accumulation of energy phase-change working substance in the flexible inner bag 3, so the accumulation of energy phase-change working substance absorbs energy and is liquefied, after the accumulation of energy phase-change working substance of gaseous state becomes liquid state fully, close the energy supplement device, at this moment pressure is kept by accumulator in the system.With the continuous consumption of working fluid in the system, the accumulation of energy phase-change working substance in the accumulator is constantly vaporized, and fluid is vaporized till the accumulation of energy phase-change working substance extrusion of expansion fully in accumulator, opens the energy supplement device again.So automatic cycle is reciprocal, and fluid keeps certain pressure in the system to keep, and satisfies the demand of producing and living.
According to Dalton's law, total vapor tension of mixing object equals each component materials vapor tension sum.The saturated vapor pressure of hydrocarbons such as ethane, ethene, propane, propylene, isobutane, normal butane, butene-1, maleic-2, isobutylene, isopentane, pentane and the relation of temperature have been provided in the following subordinate list.Can be with independent hydrocarbons or its formulated in combination accumulation of energy phase-change working substance, to satisfy the requirement of different vapor pressures.
Among Fig. 2, y coordinate is a saturated vapor pressure, and abscissa is a temperature.
The sequence number line is represented respectively among the figure: 1. methane, 2. ethene, 3. ethane, 4. ethene, 5. propylene, 6. propane, 7. propadiene, 8. propine, 9. isobutane, 10. isobutylene, butene-1,11 butadiene-1,3,12 normal butanes, 13 maleics-2,14 pentanes, 15 hexanes, 16 isoheptanes, 17 heptane, 18 isooctane, 19 octanes.
Subordinate list (videing infra)
| Temperature (℃) | Saturated vapour pressure (kilograms per centimeter 2) (cutting off) | |||||||||||
| Ethane | Ethene | Propane | Propylene | Isobutane | Normal butane | Butene-1 | Maleic-2 | Anti-butene-2 | Isobutylene | Isopentane | Pentane | |
| -50 45 40 35 30 25 20 15 10 -5 0 +5 10 15 20 25 +30 +35 40 45 50 55 60 65 70 75 80 85 90 95 +100 | 5.53 6.55 7.71 9.02 10.50 12.15 14.00 16.04 18.31 20.81 23.55 25.55 29.82 33.36 37.21 41.37 45.85 48.89 | 10.47 12.28 14.32 16.60 19.12 21.92 24.98 28.33 31.99 35.96 40.25 44.88 50.00 | 0.70 0.88 1.09 1.34 1.64 1.97 2.36 2.85 3.38 3.99 4.66 5.43 6.29 7.25 8.33 9.51 10.80 12.26 13.82 15.52 17.44 19.43 21.62 33.98 26.53 29.25 32.18 35.30 38.62 42.16 43.4 | 1.00 1.23 1.50 1.80 2.16 2.59 3.08 3.62 4.23 4.97 5.75 6.65 7.65 8.74 9.92 11.32 12.80 14.44 16.23 18.17 20.28 22.57 25.05 27.73 30.60 33.69 36.99 40.53 45.31 45.39 | 0.88 1.07 1.28 1.53 1.82 2.15 2.52 2.94 3.41 3.94 4.52 5.13 5.90 5.69 7.59 8.53 9.57 10.70 11.93 13.26 14.69 16.24 17.89 19.66 | 0.56 0.68 0.84 1.02 1.23 1.46 1.74 2.05 2.40 2.80 3.24 3.74 4.29 4.90 5.57 6.31 7.21 8.00 8.96 10.00 11.13 12.34 13.65 15.04 | 0.70 0.86 1.05 1.27 1.52 1.82 2.15 2.52 2.95 3.43 3.96 4.56 5.22 5.94 6.38 7.94 8.56 9.60 10.72 11.93 13.23 14.64 15.88 17.75 | 0.46 0.57 0.71 0.87 1.05 1.26 1.51 1.79 2.11 2.47 2.37 3.33 3.83 4.39 5.01 5.69 6.44 7.25 8.14 9.10 10.14 11.27 12.47 13.76 | 0.52 0.65 0.78 0.97 1.17 1.40 1.66 1.97 2.31 2.70 3.13 3.62 4.16 4.75 5.41 6.14 6.93 7.80 8.73 9.75 10.85 12.03 13.31 14.68 | 0.73 0.89 1.08 1.30 1.55 1.84 2.17 2.55 2.97 3.45 3.99 4.58 5.24 5.98 6.13 6.78 8.64 9.69 10.84 12.09 13.41 14.80 16.45 18.13 | 0.34 0.42 0.52 0.63 0.70 0.91 1.08 1.27 1.49 1.74 2.02 2.34 2.64 3.07 3.60 3.97 4.48 5.04 5.65 6.31 7.03 | 0.24 0.30 0.37 0.46 0.58 0.67 0.81 0.96 1.14 1.34 1.57 1.83 2.12 2.44 2.80 3.19 3.83 4.11 4.63 5.21 5.33 |
Claims (3)
1, a kind of phase change type fluid energy storage apparatus, comprise stiff case and fluid inlet that is communicated with stiff case and outlet, spacer is set in the stiff case, spacer is separated into not connected cavity with the stiff case inner cavity, spacer is a flexible material, and is connected with the internal surface of stiff case, and spacer is divided into the stiff case inner cavity more than 2 or 2, and in 1 cavity, fill phase-change working substance at least, it is characterized in that the internal surface tie point of spacer and stiff case is even layout.
2, phase change type fluid energy storage apparatus according to claim 1 is characterized in that flexible inner bag (barrier film) is divided into the stiff case inner cavity more than 2, and one of them is communicated with the import and export of fluid, fills phase-change working substance in the other cavity.
3, phase change type fluid energy storage apparatus according to claim 2 is characterized in that phase-change working substance is a hydrocarbons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001113968A CN1167885C (en) | 2000-09-29 | 2000-09-29 | Phase change type fluid energy storage apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001113968A CN1167885C (en) | 2000-09-29 | 2000-09-29 | Phase change type fluid energy storage apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1346025A CN1346025A (en) | 2002-04-24 |
| CN1167885C true CN1167885C (en) | 2004-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001113968A Expired - Fee Related CN1167885C (en) | 2000-09-29 | 2000-09-29 | Phase change type fluid energy storage apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1167885C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782436B (en) * | 2016-04-28 | 2018-09-25 | 庆丰鞋业（江苏）有限公司 | A kind of pressure vessel with pooling feature |
| CN106286431B (en) * | 2016-10-18 | 2018-08-14 | 杨富刚 | A kind of energy storing structure |
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2000
- 2000-09-29 CN CNB001113968A patent/CN1167885C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1346025A (en) | 2002-04-24 |
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