CN107345773A - Heat-storing device and the electric heat storage system using the heat-storing device - Google Patents
Heat-storing device and the electric heat storage system using the heat-storing device Download PDFInfo
- Publication number
- CN107345773A CN107345773A CN201710648419.1A CN201710648419A CN107345773A CN 107345773 A CN107345773 A CN 107345773A CN 201710648419 A CN201710648419 A CN 201710648419A CN 107345773 A CN107345773 A CN 107345773A
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- China
- Prior art keywords
- heat
- oil
- storing device
- heat exchanger
- finned
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0056—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using solid heat storage material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
- F24H7/02—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
- F24H7/0208—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid using electrical energy supply
- F24H7/0233—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid using electrical energy supply the transfer fluid being water
-
- 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
- Y02E60/14—Thermal energy storage
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Central Heating Systems (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
A kind of heat-storing device, including casing, finned heat exchanger and heat accumulating, in the casing, the heat accumulating is filled between the casing and the finned heat exchanger finned heat exchanger；The finned heat exchanger includes heat-transfer pipe and the fin on the outside of the heat-transfer pipe；The heat accumulating includes rock, concrete, sandstone and graphite.Above-mentioned heat-storing device, there is advantages below：By setting finned heat exchanger in heat accumulation module, and using the heat accumulating for including rock, concrete, sandstone and graphite, heat transfer interface area is big, and heat exchange efficiency is high, and charge and discharge thermal velocity is fast.It is turbulent flow to change laminar flow, improves heat exchange efficiency, reduces thermal resistance.High temperature resistant, it is high pressure resistant.It is compact-sized, it is in light weight, it is easy for installation.Application conditions are extensive, are applicable larger pressure, temperature range and a variety of medium heat exchanges.It is easy to operate, it is easy to clean.In addition, also provide a kind of electric heat storage system using above-mentioned heat-storing device.
Description
Technical field
The present invention relates to energy technology field, more particularly to a kind of heat-storing device and the electric accumulation of heat system using the heat-storing device
System.
Background technology
As the mankind are to the increasingly serious of the growth of energy demand and environmental problem, electric heating conduction oil furnace technology turns into
Solves a kind of effective way of energy problem.Heat-storage technology is due to that can realize electric heating conduction oil furnace heating system 24 hours even
Reforwarding row, turn into electric heating conduction oil furnace technology and push commercialized key to.
In the heating system of current commercialized running, heat reservoir is largely using double tank molten salt heat storage systems.
But the shortcomings of fuse salt heat-storage technology has heat accumulating fusing point height, and operation and cost of investment are high.Solid heat-storage technology (coagulation
Soil, ceramics, PCM) due to material cost it is relatively low, the advantages such as operation maintenance is convenient, are the heat-storage technologies for having very much application prospect.So
And the heat exchanger structure and solid heat accumulating thermal conductivity due to inside modules are relatively low, the heat of heat-transfer fluid can not be timely
Be delivered to material internal so that charge and discharge heat speed it is slower.
The content of the invention
In consideration of it, it is necessary to provide a kind of faster heat-storing device of charge and discharge thermal velocity and the electric accumulation of heat using the heat-storing device
System.
A kind of heat-storing device, including casing, finned heat exchanger and heat accumulating, the finned heat exchanger is located at described
In casing, the heat accumulating is filled between the casing and the finned heat exchanger；
The finned heat exchanger includes heat-transfer pipe and the fin on the outside of the heat-transfer pipe；
The heat accumulating includes rock, concrete, sandstone and graphite.
In one of the embodiments, the heat-transfer pipe is the round tube, spiral element or coiled pipe being bent to form.
In one of the embodiments, the heat-transfer pipe is metal tube, and the fin is metal fin.
A kind of electric heat storage system, including hot oil heater, heat-storing device, gs-oil separator, oil expansion tank and heat exchange
Device；
The hot oil heater, the heat-storing device and the gs-oil separator are sequentially connected and form one and follow
Ring, the liquid outlet of the gs-oil separator connect with the hot oil heater；
The gas vent of the gs-oil separator connects with the oil expansion tank；
The heat exchanger and the hot oil heater are in parallel, the liquid outlet of the gs-oil separator and the heat exchange
The heat conductive oil inlet connection of device, the conduction oil outlet of the heat exchanger connect with the heat-storing device；
The heat-storing device includes casing, finned heat exchanger and heat accumulating, and the finned heat exchanger is located at described
In casing, the heat accumulating is filled between the casing and the finned heat exchanger；
The finned heat exchanger includes heat-transfer pipe and the fin on the outside of the heat-transfer pipe；
The heat accumulating includes rock, concrete, sandstone and graphite.
In one of the embodiments, the hot oil heater includes the first heat-conducting oil heating unit, and described first
Heat-conducting oil heating unit includes the first Heat-transfer Oil Pump, the first heat-conducting oil furnace and the first motor-driven valve that are sequentially connected, wherein, described the
One Heat-transfer Oil Pump connects with the liquid outlet of the gs-oil separator, and first motor-driven valve connects with the heat-storing device.
In one of the embodiments, the hot oil heater also includes the second heat-conducting oil heating unit, and described
Two heat-conducting oil heating units include the second Heat-transfer Oil Pump, the second heat-conducting oil furnace and the second motor-driven valve that are sequentially connected, and described first
Heat-conducting oil heating unit and the second heat-conducting oil heating unit are connected in parallel.
In one of the embodiments, the heat conductive oil inlet of the heat exchanger is provided with the 3rd Heat-transfer Oil Pump, the heat exchanger
Cooling water inlet be provided with water pump.
In one of the embodiments, in addition to control system, the hot oil heater connect with the control system
Connect.
Above-mentioned heat-storing device, there is advantages below：
1st, by setting finned heat exchanger inside heat-storing device, heat transfer interface area is big, and heat exchange efficiency is high.
2nd, it is turbulent flow to change laminar flow, improves heat exchange efficiency, reduces thermal resistance.
3rd, heat transfer rate is fast, high temperature resistant, high pressure resistant.
4th, compact-sized, floor space is small, in light weight, easy for installation, saves construction investment.
5th, flexible design, it is complete in specifications, it is practical with strong points, save fund.
6th, application conditions are extensive, are applicable larger pressure, temperature range and a variety of medium heat exchanges.
7th, maintenance cost is low, easy to operate, snaking cycle length, easy to clean.
8th, application field is wide, can be widely used for thermoelectricity, factories and miness, petrochemical industry, concentrated supply of heating in the city, food medicine, energy
The fields such as source electronics, mechanical light industry.
Above-mentioned electric heat storage system, by heat accumulation module set finned heat exchanger, and using include rock, concrete,
The heat accumulating of sandstone and graphite, heat transfer interface area is big, and heat exchange efficiency is high, and charge and discharge thermal velocity is fast.And it is simple in construction, maintenance is torn open
Unload conveniently, maintenance cost is low.In addition, above-mentioned electric heat storage system, heat-storing device is internally heated using conduction oil as heat-conducting medium,
Water in external heat release heating heat exchanger, safety and stability, does not discharge toxic and harmful gas, pollution-free, and the thermal efficiency is high.
Brief description of the drawings
Fig. 1 is the structural representation of the heat-storing device of an embodiment；
Fig. 2 is the structural representation of the serpentine-like heat transfer pipe of an embodiment；
Fig. 3 is the structural representation of the electric heat storage system of an embodiment..
Embodiment
In order that the objects, technical solutions and advantages of the present invention become apparent from, below in conjunction with drawings and Examples, to this hair
It is bright to be further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and do not have to
It is of the invention in limiting.
Referring to Fig. 1, the heat-storing device 20 of an embodiment, including casing 22, finned heat exchanger 24 and heat accumulating
(not shown).In casing 22, heat accumulating is filled between casing 22 and finned heat exchanger 24 finned heat exchanger 24.
Finned heat exchanger 24 includes heat-transfer pipe and the fin on the outside of heat-transfer pipe.Heat-transfer pipe is the circle being bent to form
Pipe, spiral element or coiled pipe (as shown in Figure 2).Heat-transfer pipe is metal tube, and fin is metal fin.Fin can be parallel sets
The multiple fins put, multiple through holes are equipped with each fin, the heat-transfer pipe of bending is arranged in through hole, and is fixed and connected with fin
Connect.Fin can also be the fin that helical form is fixed on the outside of heat-transfer pipe.It is appreciated that finned heat exchanger 24 can also be
Other conventional structures.Finned heat exchanger 24 has the advantages that simple in construction and easy to operate.
Heat accumulating includes rock, concrete, sandstone and graphite.In real work, heat accumulating can also include it
His material.
Above-mentioned heat-storing device 20, there is advantages below：
1st, by setting finned heat exchanger inside heat-storing device, heat transfer interface area is big, and heat exchange efficiency is high.
2nd, it is turbulent flow to change laminar flow, improves heat exchange efficiency, reduces thermal resistance.
3rd, heat transfer rate is fast, high temperature resistant, high pressure resistant.
4th, compact-sized, floor space is small, in light weight, easy for installation, saves construction investment.
5th, flexible design, it is complete in specifications, it is practical with strong points, save fund.
6th, application conditions are extensive, are applicable larger pressure, temperature range and a variety of medium heat exchanges.
7th, maintenance cost is low, easy to operate, snaking cycle length, easy to clean.
8th, application field is wide, can be widely used for thermoelectricity, factories and miness, petrochemical industry, concentrated supply of heating in the city, food medicine, energy
The fields such as source electronics, mechanical light industry.
In addition, referring to Fig. 3, also provide the electric heat storage system 100 using above-mentioned heat-storing device 20 of an embodiment, wrap
Include hot oil heater 10, heat-storing device 20, gs-oil separator 30, oil expansion tank 40 and heat exchanger 50.
Hot oil heater 10, heat-storing device 20 and gs-oil separator 30 are sequentially connected and form a circulation, oil gas
The liquid outlet 32 and hot oil heater 10 of separator 30 connect.
The gas vent 34 and oil expansion tank 40 of gs-oil separator 30 connect.In cyclic process, gs-oil separator 30 is used
Have the function that automatic exhaust and expansion level pressure with oil expansion tank 40.
Heat exchanger 50 and hot oil heater 10 are in parallel, the liquid outlet 32 of gs-oil separator 30 and leading for heat exchanger 50
Hot oil inlet 52 connects, and the conduction oil outlet 54 and heat-storing device 20 of heat exchanger 50 connect.
Further, hot oil heater 10 includes the first heat-conducting oil heating unit.First heat-conducting oil heating unit bag
Include the first Heat-transfer Oil Pump 12 being sequentially connected, the first heat-conducting oil furnace 14 and the first motor-driven valve 16.Wherein, the He of the first Heat-transfer Oil Pump 12
The liquid outlet 32 of gs-oil separator 30 connects, and the first motor-driven valve 16 and heat-storing device 20 connect.
In the embodiment shown in Fig. 3, hot oil heater also includes the second heat-conducting oil heating unit.Second heat conduction
Oily heating unit includes the second Heat-transfer Oil Pump 17, the second heat-conducting oil furnace 18 and the second motor-driven valve 19 being sequentially connected, the first heat conduction
Oily heating unit and the second heat-conducting oil heating unit are connected in parallel.The liquid outlet of second Heat-transfer Oil Pump 17 and gs-oil separator 30
32 connections, the second motor-driven valve 19 and heat-storing device 20 connect.It is appreciated that hot oil heater can also be arranged as required to
More heat-conducting oil heating units.
Further, the 3rd Heat-transfer Oil Pump 60 is provided with the heat conductive oil inlet 52 of heat exchanger 50, the cold water of heat exchanger 50 enters
Mouth 56 is provided with water pump 70.
In the embodiment shown in Fig. 3, the conduction oil outlet 54 of heat exchanger 50 is additionally provided with the 3rd motor-driven valve 80.
Further, electric heat storage system 100 also includes control system, and hot oil heater 10 is connected with control system.
By control system, the open and close of hot oil heater 10 can be automatically controlled.It is appreciated that hot oil heater
10 open and close can also be controlled manually.
The above-mentioned heat-conducting oil heating thermal energy storage process of electric heat storage system 100 is as follows：Conduction oil is in the first heat-conducting oil furnace 14 and second
After heating in heat-conducting oil furnace 18, finned changed by enter in heat-storing device 20 after the first motor-driven valve 16, the second motor-driven valve 19
Hot device 24, exchanged heat by finned heat exchanger 24 and heat accumulating and stored heat, carry out the heat conduction after heat exchange
Oil subsequently enters gs-oil separator 30, after entering the first Heat-transfer Oil Pump 12 and the supercharging of the second Heat-transfer Oil Pump 17 afterwards, returns to first and leads
The heat-conducting oil furnace 18 of hot oil furnace 14 and second completes circulation.
The above-mentioned conduction oil exothermic process of electric heat storage system 100 is as follows：Conduction oil enters heat exchanger 50 after the 3rd oil pump 60,
Hot fluid to be added with entering heat exchanger 50 enters the 3rd motor-driven valve 80 after carrying out heat exchange, then into heat-storing device 20, warp
After heat-storing device 20 returns to gs-oil separator 30 after heating, return the 3rd oil pump 60 and complete circulation.
Above-mentioned electric heat storage system 100, can be by being entered during low power consumption by hot oil heater to conduction oil
After row heating, the conduction oil after heating enters heat-storing device 20, and heat is stored in heat-storing device 20, in peak of power consumption
Phase, and the heat being stored in heat-storing device 20 is passed into fluid to be heated by conduction oil and heat exchanger, can be abundant
It is low using low ebb electricity price, operating cost.
Above-mentioned electric heat storage system 100, by heat accumulation module 20 set finned heat exchanger 24, and using include rock,
The heat accumulating of concrete, sandstone and graphite, heat transfer interface area is big, and heat exchange efficiency is high, and charge and discharge thermal velocity is fast.And structure letter
It is single, convenient disassembly is overhauled, maintenance cost is low.In addition, above-mentioned electric heat storage system 100, internal using conduction oil as heat-conducting medium
Heat-storing device 20 is heated, the water in external heat release heating heat exchanger 50, safety and stability, does not discharge toxic and harmful gas, it is pollution-free,
The thermal efficiency is high.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (8)
- A kind of 1. heat-storing device, it is characterised in that including casing, finned heat exchanger and heat accumulating, the fin type heat exchange In the casing, the heat accumulating is filled between the casing and the finned heat exchanger device；The finned heat exchanger includes heat-transfer pipe and the fin on the outside of the heat-transfer pipe；The heat accumulating includes rock, concrete, sandstone and graphite.
- 2. heat-storing device as claimed in claim 1, it is characterised in that the heat-transfer pipe is round tube, the spiral being bent to form Shape pipe or coiled pipe.
- 3. heat-storing device as claimed in claim 1, it is characterised in that the heat-transfer pipe is metal tube, and the fin is metal Fin.
- 4. a kind of electric heat storage system, it is characterised in that including hot oil heater, heat-storing device, gs-oil separator, expansion oil Case and heat exchanger；The hot oil heater, the heat-storing device and the gs-oil separator are sequentially connected and form a circulation, institute The liquid outlet for stating gs-oil separator connects with the hot oil heater；The gas vent of the gs-oil separator connects with the oil expansion tank；The heat exchanger and hot oil heater parallel connection, the liquid outlet of the gs-oil separator and the heat exchanger Heat conductive oil inlet connects, and the conduction oil outlet of the heat exchanger connects with the heat-storing device；The heat-storing device includes casing, finned heat exchanger and heat accumulating, and the finned heat exchanger is located at the casing Interior, the heat accumulating is filled between the casing and the finned heat exchanger；The finned heat exchanger includes heat-transfer pipe and the fin on the outside of the heat-transfer pipe；The heat accumulating includes rock, concrete, sandstone and graphite.
- 5. electric heat storage system as claimed in claim 4, it is characterised in that the hot oil heater includes the first conduction oil Heating unit, the first heat-conducting oil heating unit include the first Heat-transfer Oil Pump, the first heat-conducting oil furnace and first being sequentially connected Motor-driven valve, wherein, first Heat-transfer Oil Pump connects with the liquid outlet of the gs-oil separator, first motor-driven valve and institute State heat-storing device connection.
- 6. electric heat storage system as claimed in claim 5, it is characterised in that the hot oil heater also includes the second heat conduction Oily heating unit, the second heat-conducting oil heating unit include the second Heat-transfer Oil Pump, the second heat-conducting oil furnace and the being sequentially connected Two motor-driven valves, the first heat-conducting oil heating unit and the second heat-conducting oil heating unit are connected in parallel.
- 7. electric heat storage system as claimed in claim 4, it is characterised in that the heat conductive oil inlet of the heat exchanger is led provided with the 3rd Hot oil pump, the cooling water inlet of the heat exchanger are provided with water pump.
- 8. electric heat storage system as claimed in claim 4, it is characterised in that also including control system, the heat-conducting oil heating dress Put and be connected with the control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710648419.1A CN107345773A (en) | 2017-08-01 | 2017-08-01 | Heat-storing device and the electric heat storage system using the heat-storing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710648419.1A CN107345773A (en) | 2017-08-01 | 2017-08-01 | Heat-storing device and the electric heat storage system using the heat-storing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107345773A true CN107345773A (en) | 2017-11-14 |
Family
ID=60257130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710648419.1A Pending CN107345773A (en) | 2017-08-01 | 2017-08-01 | Heat-storing device and the electric heat storage system using the heat-storing device |
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| CN (1) | CN107345773A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508855A (en) * | 2022-01-03 | 2022-05-17 | 杭州佐帕斯工业有限公司 | Electric conduction oil furnace system capable of realizing wide-range adjustment of output power |
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| CN104456528A (en) * | 2014-11-05 | 2015-03-25 | 江苏太阳宝新能源有限公司 | Method and system for comprehensively utilizing stored energy and smart power grid |
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| CN206300260U (en) * | 2016-12-15 | 2017-07-04 | 河南省电力勘测设计院 | A kind of severe cold area transformer station is based on the heating system of heliotechnics |
| CN207214882U (en) * | 2017-08-01 | 2018-04-10 | 优晖科技（北京）有限公司 | Heat-storing device and the electric heat storage system using the heat-storing device |
-
2017
- 2017-08-01 CN CN201710648419.1A patent/CN107345773A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202393276U (en) * | 2012-01-06 | 2012-08-22 | 武汉光谷节能技术有限公司 | Heat accumulation device |
| CN103291566A (en) * | 2012-02-29 | 2013-09-11 | 深圳市阳能科技有限公司 | Solar thermal power generation system and high-temperature energy storing device thereof |
| CN103292630A (en) * | 2013-05-31 | 2013-09-11 | 安徽国电能源设备工程有限公司 | Off-peak electricity high-temperature heat-storage steam generating system |
| CN104456528A (en) * | 2014-11-05 | 2015-03-25 | 江苏太阳宝新能源有限公司 | Method and system for comprehensively utilizing stored energy and smart power grid |
| CN206300260U (en) * | 2016-12-15 | 2017-07-04 | 河南省电力勘测设计院 | A kind of severe cold area transformer station is based on the heating system of heliotechnics |
| CN106594858A (en) * | 2017-03-02 | 2017-04-26 | 唐山铸锐科技有限公司 | Electric heat storage system and control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114508855A (en) * | 2022-01-03 | 2022-05-17 | 杭州佐帕斯工业有限公司 | Electric conduction oil furnace system capable of realizing wide-range adjustment of output power |
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