CN213657613U - Phase change energy storage unit with built-in low-temperature electric heat source - Google Patents
Phase change energy storage unit with built-in low-temperature electric heat source Download PDFInfo
- Publication number
- CN213657613U CN213657613U CN202021259705.2U CN202021259705U CN213657613U CN 213657613 U CN213657613 U CN 213657613U CN 202021259705 U CN202021259705 U CN 202021259705U CN 213657613 U CN213657613 U CN 213657613U
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- low
- energy storage
- heat
- temperature
- storage unit
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- 238000004146 energy storage Methods 0.000 title claims abstract description 23
- 239000012071 phase Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 4
- 239000012074 organic phase Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 12
- 238000010438 heat treatment Methods 0.000 abstract description 10
- 239000012782 phase change material Substances 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 238000005485 electric heating Methods 0.000 description 7
- 238000005338 heat storage Methods 0.000 description 4
- 229920000049 Carbon (fiber) Polymers 0.000 description 3
- 239000004917 carbon fiber Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000011232 storage material Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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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
- Y02E60/14—Thermal energy storage
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- Central Heating Systems (AREA)
Abstract
A phase change energy storage unit with a built-in low-temperature electric heat source relates to a device for storing and supplying heat by converting household or commercial electric energy into heat energy. The method comprises the following steps: the low-temperature resistance circuit is uniformly arranged and is in direct contact with the organic phase-change material, and the low-temperature resistance circuit, the control piece and the accessory jointly form a phase-change energy storage unit internally provided with a low-temperature electric heat source. The device can make the user heat supply and energy storage when the low ebb electricity price evening, only dispel the heat when the peak electricity price to improve the utility ratio of commercial power resource, reduced user's heating working costs, had simple structure, safe and reliable simultaneously, arrange advantages such as nimble and the cost of manufacture low.
Description
Technical Field
The utility model relates to a domestic or commercial power consumption passes to heat energy storage and heating device.
Background
At present, a city adopts a mains supply policy of time-of-use electricity price, namely that the electricity price is higher in the daytime and lower at night. The purpose is to encourage people to use electricity in the valley to improve the comprehensive utilization rate of public investment. In practice, the time-of-use electricity price policy is not fully utilized because of less electric equipment used at night.
For many homes or commercial users, their buildings do not have access to an integrated heating grid, especially in most areas of the south. In order to meet the heating requirement, many users adopt electric heating equipment or air conditioners, the equipment is used immediately, the users can enjoy the low-valley electricity price when using the equipment at night, but the users can charge the electricity price according to the peak electricity price when using the equipment at daytime.
At present, a high-temperature electric heating energy storage heating device has appeared in northern areas, mainly uses an electric heating pipe to generate heat, uses refractory bricks and other materials as a heat accumulator to store heat, and has the temperature reaching more than hundreds of degrees, thereby belonging to sensible heat energy storage. Because the device adopts high-temperature electric heating, corresponding parts are easy to damage at high temperature; in order to achieve a certain heat storage capacity, the refractory bricks are large in quantity and weight and inconvenient to carry.
The related patents disclosed are basically concerned with a heat source which is provided separately from a heat storage material for heat conduction by a liquid medium, and a heat storage material which is basically an inorganic salt hydrate. Such an arrangement has advantages in that the heating source can be heated at a high temperature, such as fuel combustion or an electric heating rod, but has disadvantages in that a pipe and a vessel, which are separately provided and must have a circulating medium for heat transfer, are complicated in structure, are expensive to manufacture, and suffer from a decrease in heat transfer efficiency and non-uniformity in heating.
Disclosure of Invention
The utility model aims to overcome the defects of the device or the method, and the electric energy is converted into low-temperature heat energy through unique technical design and is stored in the phase-change material and used for heat supply.
The utility model adopts the technical proposal that:
the phase change energy storage unit with the built-in low-temperature electric heat source comprises: the low-temperature resistance circuit is uniformly arranged and is in direct contact with the organic phase-change material, and the low-temperature resistance circuit, the control piece and the accessory jointly form a phase-change energy storage unit internally provided with a low-temperature electric heat source.
The technology adopts a low-temperature resistance circuit in the form of carbon fiber wires or printed circuits and the like, the heating temperature of the resistance circuit is lower, the resistance circuit cannot be damaged at high temperature, and the safety is improved; the low-temperature resistance circuit is long and easy to bend and arrange, the heat transfer area between the low-temperature resistance circuit and the organic phase-change material is increased, and the heat transfer efficiency is improved. The organic phase-change material is adopted, so that the phenomenon of crystallization, precipitation and separation of the inorganic phase-change material is avoided, the corrosion is avoided, the service life is long, and the heat storage performance is obviously improved; the organic phase-change material is insulated and can be in direct contact with a low-temperature resistance circuit, the risk of electric leakage is avoided, heat transfer of a circulating medium is not needed, the structure of the device is simplified to a greater extent, the manufacturing cost is obviously reduced, and the heat transfer efficiency is improved. When the low-temperature resistance circuit works, the organic phase-change material is gradually changed from a solid state to a liquid state to store heat, and then the stored heat is dissipated through the outer surface of the container.
Because the energy storage and heat dissipation capacity of a single phase change energy storage unit is limited, a plurality of phase change energy storage units can be jointly arranged to improve the energy storage capacity and the heat dissipation capacity, and the phase change energy storage units can be flexibly arranged according to the environmental requirements to achieve the purposes of attractiveness and space saving. The phase change energy storage units with the built-in low-temperature electric heat sources can be combined to form an integral skid-mounted structure as required, and can also be combined and arranged under the floor or on a wall in a planar manner as required.
The control element of the phase change energy storage unit with the built-in low-temperature electric heat source can be a time, temperature or electric leakage protection control element, and can also be an assembly of the functions.
The utility model has the advantages that:
through the design, the household can supply heat and store energy at the low ebb electricity price at night, and only dissipate heat at the high peak electricity price, so that the comprehensive utilization rate of the commercial power resource is improved, the heating operation cost of the user is reduced, and the household heating system has the advantages of simple structure, safety, reliability, flexibility in arrangement, low manufacturing cost and the like.
Drawings
Fig. 1 is a schematic structural diagram of a phase change energy storage unit with a built-in low temperature electric heat source according to the present invention.
Description of the components in the schematic: the device comprises a container (1), an organic phase-change material (2), a low-temperature resistance circuit (3), a control piece (4) and an accessory (5).
Detailed Description
Placing the low-temperature solid-liquid organic phase change material (2) in a temperature-resistant plastic container (1); uniformly winding a carbon fiber low-temperature resistance circuit (3) on a bracket accessory (5), connecting a temperature control switch control piece (4) with the temperature of 60-70 ℃, and arranging the carbon fiber low-temperature resistance circuit in the container to be in direct contact with the organic phase change material; a control part (4) with time, temperature and electric leakage protection control functions is arranged outside the container; and 2, combining the phase change energy storage units into a skid-mounted structure.
A user can move the phase change energy storage unit with the built-in low-temperature electric heat source to different rooms according to the requirement; the electric heating time can be set in the time period of the off-peak electricity price, and at the moment, the device can not only electrically heat the phase change material to store heat, but also supply heat to the room; the off-peak time is set to stop the electric heating mode, and the device gradually changes phase and releases heat due to the temperature difference.
Claims (2)
1. A phase change energy storage unit with a built-in low-temperature electric heat source comprises: the low-temperature resistance circuit is uniformly arranged and is in direct contact with the organic phase change material, and the low-temperature resistance circuit, the control piece and the accessory jointly form a phase change energy storage unit internally provided with a low-temperature electric heat source.
2. The phase-change energy storage unit with a built-in low-temperature electric heat source as claimed in claim 1, wherein the control means is a time, temperature or safety control means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021259705.2U CN213657613U (en) | 2020-06-27 | 2020-06-27 | Phase change energy storage unit with built-in low-temperature electric heat source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021259705.2U CN213657613U (en) | 2020-06-27 | 2020-06-27 | Phase change energy storage unit with built-in low-temperature electric heat source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213657613U true CN213657613U (en) | 2021-07-09 |
Family
ID=76683193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021259705.2U Expired - Fee Related CN213657613U (en) | 2020-06-27 | 2020-06-27 | Phase change energy storage unit with built-in low-temperature electric heat source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213657613U (en) |
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2020
- 2020-06-27 CN CN202021259705.2U patent/CN213657613U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210709 |