CN203691045U - Continuous power supply system - Google Patents
Continuous power supply system Download PDFInfo
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- CN203691045U CN203691045U CN201320828797.5U CN201320828797U CN203691045U CN 203691045 U CN203691045 U CN 203691045U CN 201320828797 U CN201320828797 U CN 201320828797U CN 203691045 U CN203691045 U CN 203691045U
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Abstract
The utility model discloses a continuous power supply system which mainly comprises a super capacitor energy storage unit, a liquid nitrogen power unit and a monitoring and controlling unit. When the commercial power supplies power normally, the electric power is stored in the super capacitor and the liquid nitrogen power unit. When the electric power fails, the super capacitor responds rapidly to supply power to the electric equipment and starts up the liquid nitrogen power unit to realize long-time power supply. When the commercial power backs again, the energy storage process is performed through electric power of the electrical network, and the liquid nitrogen in a low temperature liquid storage tank can be supplemented as needed. The continuous power supply system employs a super capacitor and a liquid nitrogen power unit, and is rapid in response, long in service lifetime, low in maintenance cost and high in adaptive capacity. The continuous power supply system is low-carbon and environmental friendly.
Description
Technical field
The utility model relates to a kind of free of discontinuities power-supply system, particularly the free of discontinuities power-supply system of a kind of civil power that is coupled, super capacitor and liquid nitrogen power unit.
Background technology
Free of discontinuities power supply (Uninterruptible Power Supply, UPS) be a kind of power-supply device that comprises the parts such as rectification, energy storage, inversion and switch, in emergency power supply or stand-by power supply access electrical network or local power net, in the time of mains supply system break, this equipment discharges the electric energy storing and realizes continued power, maintains the normal operation of power consumption equipment.Free of discontinuities power supply has a wide range of applications in fields such as industry, business and houses, mainly comprises communication, information technology, computer data center, Industry Control, medical treatment, the energy and various architectural power supply systems etc.
Free of discontinuities power supply mainly comprises two parts: main frame and power storage equipment.Main frame comprises rectification, inversion, switch and other induction and control module.Power storage equipment is divided into Static and dynamic storage facilities.Static storage facilities is a kind of electric power save scheme of current extensive use, and its main body is chemical storage batteries; The output of dynamic storing equipment confession under directions electricity is the free of discontinuities power source design that maintains (as flywheel, internal combustion engine, gas turbine etc.) by kinetic energy.Storage battery have shorter, charging interval in useful life long, require not exclusively electric discharge, maintenance period short, to shortcomings such as requirement for environmental conditions height, the more important thing is, the production process of storage battery and the processing procedure of old and useless battery all produce with polluting.Flywheel energy storage can be realized fast reaction, and efficiency is higher, but need to be used in conjunction with internal combustion engine.Internal combustion engine consumption of fossil fuels, its emission will produce pollution to environment.
Super capacitor is a kind of advanced person's high-energy storage unit, have be swift in response, capacity is large, volume is little, the life-span is long, connection in series-parallel combined and instant etc.The utility model proposes a kind of liquid nitrogen power unit of the super capacitor that is coupled, it has the feature pollution-free, energy density is high, can generate electricity relatively for a long time, and be coupled with super capacitor, there is the features such as reaction speed is fast, thereby form a kind of novel free of discontinuities power-supply system.
Summary of the invention
In order to solve the shortcoming and defect of above-mentioned prior art, the utility model aims to provide a kind of novel free of discontinuities power-supply system, the advantage such as this free of discontinuities power-supply system has that power density is high, the charging interval is short, is swift in response, low-carbon environment-friendly, long service life, maintenance cost are low, adaptable.
For achieving the above object, technical solution of the present utility model is: a kind of free of discontinuities power-supply system, comprise super capacitor unit, liquid nitrogen power unit and monitoring and control unit, , it is characterized in that, described monitoring and control unit are by control circuit and super capacitor unit, liquid nitrogen power unit connects, use in running order all the time monitoring and the dynamic Real-Time Monitoring civil power of control unit, the operating state of super capacitor unit and liquid nitrogen power unit, in the time monitoring the operating state of civil power in normal power supply, monitoring only makes civil power power to power consumption equipment with control unit control, close described liquid nitrogen power unit simultaneously, and civil power is charged to super capacitor unit, in the time monitoring the operating state of civil power in power-off, disconnect the connecting valve between civil power and power consumption equipment, start described super capacitor unit and liquid nitrogen power unit, an electric power part for described super capacitor unit output is power consumption equipment power supply, and another part is the starter motor power supply in described liquid nitrogen power unit.
Preferably, described super capacitor unit mainly comprises super capacitor and power electronics unit.
Preferably, described liquid nitrogen power unit comprises the liquid nitrogen container, low temperature liquid pump, air cooler, regenerative heat exchange unit, the expansion unit that are linked in sequence successively by pipeline, described expansion unit drive motor units.Under super capacitor drives, the liquid nitrogen in liquid nitrogen container is pressurizeed by low temperature liquid pump, and high pressure low temperature liquid nitrogen enters after regenerative heat exchange unit further absorbs heat and changes high pressure nitrogen into after air cooler absorbing environmental heat, and high pressure nitrogen promotes the acting of expansion unit.
Further, described liquid nitrogen power unit also comprises cryogenic heat exchanger, compressor bank, wherein, described cryogenic heat exchanger is arranged between described low temperature liquid pump and air cooler, high pressure low temperature liquid nitrogen after the pressurization of low temperature liquid pump enters air cooler through the cold side of described cryogenic heat exchanger, the nitrogen that expansion unit is discharged enters the import of described compressor bank through the hot side of described cryogenic heat exchanger, the high pressure nitrogen that described compressor bank produces again passes in expansion unit and does work after the heating of described regenerative heat exchange unit.
Further, described expansion unit comprises high pressure expansion machine and low-pressure expansion machine, discharge high pressure nitrogen first enter high pressure expansion machine and promote its acting from described regenerative heat exchange unit, the nitrogen of discharging from high pressure expansion machine is through triple valve I and after converging from the part nitrogen of described compressor bank, again pass into described regenerative heat exchange unit and absorb heat, then drive low-pressure expansion machine acting.
Further, the nitrogen that described low-pressure expansion machine is discharged enters the import of described compressor bank through the hot side of described cryogenic heat exchanger.
Preferably, the liquid nitrogen pipeline between described liquid nitrogen container and low temperature liquid pump is provided with by-pass valve control.
Free of discontinuities power-supply system of the present utility model, its operation principle is: all the time in working order, the operating mode of monitoring system all parts and relevant parameter, in the time of civil power normal power supply: (1) power load consumption is from the power supply of civil power for monitoring and control unit; (2) civil power is the super capacitor unit power supply of free of discontinuities power-supply system, stores certain electric weight; (3) civil power is accumulation of heat/heat exchange unit power supply of liquid nitrogen power unit, produces heat energy storage; (4) in the low-temperature liquid storage tank of liquid nitrogen power unit, store liquid nitrogen.In the time of commercial power interruption, free of discontinuities power-supply system starts rapidly, for power consumption equipment power supply, be specially: (1) is the fast reaction of super capacitor unit first, output electric energy, on the one hand for power load provides unremitting supply of electric power, it provides startup electric power for the motor of liquid nitrogen power unit on the other hand, starts liquid nitrogen power unit; (2) liquid nitrogen power unit starts, and the liquid nitrogen in fluid reservoir absorbs heat by liquid pump and heat transmission equipment, and enters decompressor acting, exports lasting electric energy.In the time that city power recovery is normal, liquid nitrogen power unit is closed, and civil power, for super capacitor and thermal storage unit provide electric power, completes energy storage; Liquid nitrogen in low-temperature liquid storage tank will give supply as required.
Free of discontinuities power-supply system of the present utility model, monitoring and control unit are monitored the working condition of unit in real time.When civil power is normally worked, power consumption equipment consumes civil power electric power; Civil power is super capacitor charging by power electronic equipment, and a part of electric power is connected with the regenerative heat exchange unit in liquid nitrogen power unit by power electronic equipment in addition, is stored in heat-storing material with the form of heat energy; In the time that the amount of liquid nitrogen of low temperature flow container is less, will point out user add liquid nitrogen.
Free of discontinuities power-supply system of the present utility model is in the time of commercial power interruption, super capacitor reacts rapidly, on the one hand, be power consumption equipment power supply by power electronic equipment, electric motor units in the part driven by power liquid nitrogen power unit of super capacitor on the other hand, start liquid nitrogen power unit, realize and continue, power for a long time, now civil power side switch is in off-state.
Free of discontinuities power-supply system of the present utility model is in the time of commercial power interruption, liquid nitrogen power unit starts, liquid nitrogen in liquid nitrogen container passes through valve, pressurizeed by low temperature liquid pump, high pressure low temperature fluid enters cryogenic heat exchanger and passes through the partial tail gas heat exchange of triple valve, continue by an air cooler absorbing environmental heat nitrogen that now this part fluid state is normal temperature high voltage; This part nitrogen absorbs the heat in regenerative heat exchange unit, enters high pressure expansion machine, drives decompressor acting; This part gas continues to enter regenerative heat exchanger and absorbs heat, then drives low-pressure expansion machine acting; What low-pressure expansion machine was discharged is the nitrogen that approaches normal pressure, wherein a part of nitrogen enters cryogenic heat exchanger by triple valve, absorb the cold of liquid nitrogen, the nitrogen being cooled boosts by compressor, then mix with the nitrogen after high pressure expansion machine by triple valve, enter together regenerative heat exchange unit and absorb heat, then drive low-pressure expansion machine acting; The shaft work of output drives dynamoelectric machine output power, and this part electric power is power consumption equipment power supply by power electronic equipment.
The heat-storing material of free of discontinuities power-supply system regenerative heat exchange of the present utility model unit can be sensible heat heat-storing material or latent-heat storage material.
Decompressor and compressor in free of discontinuities power-supply system liquid nitrogen power unit of the present utility model can be vane type, can be also piston type.The progression of decompressor is two-stage or more than two-stage, and the progression of compressor is one-level or more than one-level.
Free of discontinuities power-supply system of the present utility model has following beneficial effect:
Main energy storage of the present utility model and supply unit comprise super capacitor and liquid nitrogen power unit.Adopt super capacitor as fast reaction power module, its tool has the following advantages: (1) power density is high, and discharging current can reach amperes up to a hundred; (2) charging interval short, ultracapacitor can adopt large current charge, can in tens seconds, complete charging process; (3) long service life, the cycle life of ultracapacitor can reach more than tens thousand of times; (4) adaptive capacity to environment is strong, and ultracapacitor can normally be worked in the temperature range of-45～105oC; (5) super capacitor also has advantages of non-maintaining, environmental protection.The utility model adopts a kind of liquid nitrogen power unit as relatively long-time power supply unit, and with super capacitor coupling, liquid nitrogen power unit has following advantages: (1) energy density is high: liquid nitrogen Maximum available energy under normal pressure can reach 768kJ/kg(213Wh/kg); (2) device therefor is easy to obtain, and system relates generally to heat exchanger, decompressor and compressor, is the industrial machinery and equipment of comparatively commonly using; (3) environmental friendliness, this electric power system does not have combustion process, and it utilizes the heat energy heated nitrogen prestoring, and therefore whole process does not have the discharge of pollutant; (4) maintenance cost is low, and all parts of native system is the industrial products of relatively commonly using, and can adapt to various operational environments, does not need parts to overhaul frequently, only need to pay close attention to the variation of amount of liquid nitrogen; (5) the energy storage cycle unrestricted, long service life, the conventional vacuum and low temperature storage tank (Dewar tank) of at present industry can longer-term storage liquid nitrogen, the proportion of goods damageds are low, in addition, all parts of system is industrial machinery product, long service life.
Therefore, co-occurrence has free of discontinuities power-supply system to compare, and the utlity model has plurality of advantages, has huge application potential and economic benefit.
Accompanying drawing explanation
Fig. 1 is embodiment 1 structural representation of the present utility model;
Fig. 2 is embodiment 2 structural representations of the present utility model;
Fig. 3 is embodiment 3 structural representations of the present utility model.
Embodiment
Embodiment 1
Fig. 1 is the structural representation of the embodiment 1 of free of discontinuities power-supply system of the present utility model.Monitoring and control unit 2 working condition of monitoring unit (in figure, dotted line is monitoring connecting line) in real time.Monitoring is connected with super capacitor unit 7, liquid nitrogen power unit 9 by control circuit with control unit 2, uses in running order all the time monitoring and the operating state of the dynamic Real-Time Monitoring civil power 1 of control unit 2, super capacitor unit 7 and liquid nitrogen power unit 9.When civil power 1 normal work, power consumption equipment 5 consumes civil power electric power; Civil power 1 is super capacitor charging by power electronic equipment 6 parts, and a part is connected with the regenerative heat exchange unit 15 in liquid nitrogen power unit 9 by power electronic equipment 8 in addition, is stored in heat-storing material with the form of heat energy; In the time that the amount of liquid nitrogen of low temperature flow container 10 is less, will point out user add liquid nitrogen.In the time that civil power 1 interrupts, static switch 3 disconnects, super capacitor 7 reacts rapidly, on the one hand, power for power consumption equipment 5 by power electronic equipment 6, the part electric power of super capacitor 7 drives the electric motor units 21 in liquid nitrogen power unit 9 by power electronic equipment 8 on the other hand, starts liquid nitrogen power unit 9, realize and continue, power for a long time, now switch 3 is in off-state.
Liquid nitrogen power unit 9 start-up courses are described as follows, under super capacitor 7 drives, liquid nitrogen in liquid nitrogen container 10 is pressurizeed by low temperature liquid pump 12, high pressure low temperature fluid enters cryogenic heat exchanger 13 and passes through the partial tail gas heat exchange of triple valve 19, continue by air cooler 14 absorbing environmental heats the nitrogen that now this part fluid state is normal temperature high voltage.This part nitrogen absorbs the heat in regenerative heat exchange unit 15, enters high pressure expansion machine 16 and drives decompressor acting; This part gas passes through triple valve 17 and mixes from the portion gas of compressor 20, continues to enter regenerative heat exchanger 15 and absorbs heat, then drives low-pressure expansion machine 18 to do work; What low-pressure expansion machine 18 was discharged is the nitrogen that approaches normal pressure, wherein a part enters cryogenic heat exchanger 13 by triple valve 19, absorb the cold of liquid nitrogen, the nitrogen being cooled boosts by compressor 20, then mix with the nitrogen after high pressure expansion machine 16 by triple valve 17, enter together regenerative heat exchange unit 15 and absorb heat, then drive low-pressure expansion machine 18 to do work; The shaft work of output drives dynamoelectric machine 21 output powers, and this part electric power is power consumption equipment power supply by power electronic equipment 8 and 6.
When civil power 1 recovers after supply, under the control of monitoring unit, switch 3 UNICOMs, liquid nitrogen power unit 9 is stopped power supply; Civil power 1 is inputted energy for super capacitor 7 and liquid nitrogen power unit 9, detects the liquid level of low-temperature storage tank 10 simultaneously, and whether prompting needs to add liquid nitrogen.
The progression of decompressor is two-stage or more than two-stage in the present embodiment, and the progression of compressor is one-level or more than one-level.
Embodiment 2
Fig. 2 is the structural representation of the embodiment 2 of the utility model free of discontinuities power-supply system, and its agent structure is identical with embodiment 1, and difference is the course of work of liquid nitrogen power unit 9.In the time that liquid nitrogen power unit 9 starts, the liquid nitrogen of low-temperature storage tank 10 is through valve 11 pressurization in liquid pump 12, and this part fluid, by air cooler 13, utilizes surrounding air heating high-pressure liquid nitrogen, obtains high pressure nitrogen.This part nitrogen absorbs heat by regenerative heat exchange unit 14, first does work by high pressure expansion machine 15, and this part gas absorbs heat by regenerative heat exchange unit 14 again, then enters low-pressure expansion machine 16 expansion actings, outside last discharge chamber.
The progression of the decompressor of the present embodiment can be one-level or multistage.
Embodiment 3
Fig. 3 is the structural representation of the embodiment 3 of the utility model free of discontinuities power-supply system, the present embodiment is a kind of mobile dynamical system, can be used as vehicle-mounted power etc., its power source 9 is liquid nitrogen power unit, the wherein liquid nitrogen power unit with embodiment 2 than embodiment 1, has the heat storage units of comprising and does not comprise two kinds of situations of heat storage units in the power unit 9 in native system; In the time comprising heat storage units, this part heat energy is from electric energy or the other forms of heat energy of storage; In the time not comprising heat storage units, before decompressor and inter-stage include air cooler, utilize the gas before every grade of expansion of environmental energy heating.The power that power unit 9 produces is mainly with the formal output of shaft work, provide mobile power by swiveling wheel 23, in the time that this dynamical system needs retarding braking, the shaft work of dynamical system unit 9 consumes moment by drive motors parts 8, reach the object of braking, the electric energy that motor 8 produces charges for super capacitor 7 by power electronics converting member 6, like this can fast braking and reclaim braking energy.In the time that needs accelerate, super capacitor 7 output powers, by power electronic equipment 6 drive motors 8, thereby can increase moment fast, realize the object of accelerating fast.Control unit 2 is connected with all parts, realizes the real-time control to system.
In addition, it should be noted that, the specific embodiment described in this specification, shape, institute's title of being named etc. of its parts and components can be different.All equivalence or simple change of doing according to described structure, feature and the principle of the utility model patent design, are included in the protection range of the utility model patent.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment; only otherwise depart from structure of the present utility model or surmount this scope as defined in the claims, all should belong to protection range of the present utility model.
Claims (7)
1. a free of discontinuities power-supply system, comprise super capacitor unit, liquid nitrogen power unit and monitoring and control unit, it is characterized in that, described monitoring and control unit are by control circuit and super capacitor unit, liquid nitrogen power unit connects, use monitoring and the dynamic Real-Time Monitoring civil power of control unit, the operating state of super capacitor unit and liquid nitrogen power unit, in the time monitoring the operating state of civil power in normal power supply, monitoring only makes civil power power to power consumption equipment with control unit control, close described liquid nitrogen power unit simultaneously, and civil power is charged to super capacitor unit, in the time monitoring the operating state of civil power in power-off, disconnect the connecting valve between civil power and power consumption equipment, start described super capacitor unit and liquid nitrogen power unit, an electric power part for described super capacitor unit output is power consumption equipment power supply, and another part is the starter motor power supply in described liquid nitrogen power unit.
2. free of discontinuities power-supply system as claimed in claim 1, is characterized in that: described super capacitor unit mainly comprises super capacitor and power electronics unit.
3. free of discontinuities power-supply system as claimed in claim 1, it is characterized in that: described liquid nitrogen power unit comprises the liquid nitrogen container, low temperature liquid pump, air cooler, regenerative heat exchange unit, the expansion unit that are linked in sequence successively by pipeline described expansion unit drive motor units.
4. free of discontinuities power-supply system as claimed in claim 3, it is characterized in that: described liquid nitrogen power unit also comprises cryogenic heat exchanger, compressor bank, wherein, described cryogenic heat exchanger is arranged between described low temperature liquid pump and air cooler, high pressure low temperature liquid nitrogen after the pressurization of low temperature liquid pump enters air cooler through the cold side of described cryogenic heat exchanger, the nitrogen that expansion unit is discharged enters the import of described compressor bank through the hot side of described cryogenic heat exchanger, the high pressure nitrogen that described compressor bank produces again passes in expansion unit and does work after the heating of described regenerative heat exchange unit.
5. free of discontinuities power-supply system as claimed in claim 4, it is characterized in that: described expansion unit comprises high pressure expansion machine and low-pressure expansion machine, discharge high pressure nitrogen first enter high pressure expansion machine and promote its acting from described regenerative heat exchange unit, the nitrogen of discharging from high pressure expansion machine is through triple valve I and after converging from the part nitrogen of described compressor bank, again pass into described regenerative heat exchange unit and absorb heat, then drive low-pressure expansion machine acting.
6. free of discontinuities power-supply system as claimed in claim 5, is characterized in that: the nitrogen that described low-pressure expansion machine is discharged enters the import of described compressor bank through the hot side of described cryogenic heat exchanger.
7. free of discontinuities power-supply system as claimed in claim 6, is characterized in that: the liquid nitrogen pipeline between described liquid nitrogen container and low temperature liquid pump is provided with by-pass valve control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320828797.5U CN203691045U (en) | 2013-12-15 | 2013-12-15 | Continuous power supply system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320828797.5U CN203691045U (en) | 2013-12-15 | 2013-12-15 | Continuous power supply system |
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| CN203691045U true CN203691045U (en) | 2014-07-02 |
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| CN201320828797.5U Withdrawn - After Issue CN203691045U (en) | 2013-12-15 | 2013-12-15 | Continuous power supply system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647341A (en) * | 2013-12-15 | 2014-03-19 | 中国科学院工程热物理研究所 | Uninterrupted power supply method and uninterrupted power source system |
| WO2019207564A1 (en) * | 2018-04-26 | 2019-10-31 | Ellomay Capital Ltd. | Pumped storage power station with ultra-capacitor array |
| CN112524841A (en) * | 2020-11-30 | 2021-03-19 | 上海发电设备成套设计研究院有限责任公司 | Heat pump energy storage system |
-
2013
- 2013-12-15 CN CN201320828797.5U patent/CN203691045U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647341A (en) * | 2013-12-15 | 2014-03-19 | 中国科学院工程热物理研究所 | Uninterrupted power supply method and uninterrupted power source system |
| CN103647341B (en) * | 2013-12-15 | 2015-12-09 | 中国科学院工程热物理研究所 | A kind of free of discontinuities method of supplying power to and power-supply system |
| WO2019207564A1 (en) * | 2018-04-26 | 2019-10-31 | Ellomay Capital Ltd. | Pumped storage power station with ultra-capacitor array |
| CN112524841A (en) * | 2020-11-30 | 2021-03-19 | 上海发电设备成套设计研究院有限责任公司 | Heat pump energy storage system |
| CN112524841B (en) * | 2020-11-30 | 2022-08-30 | 上海发电设备成套设计研究院有限责任公司 | Heat pump energy storage system |
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Granted publication date: 20140702 Effective date of abandoning: 20151209 |
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| AV01 | Patent right actively abandoned |
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