CN110567306A - Electric heating step solid-liquid heat storage heating bag - Google Patents

Electric heating step solid-liquid heat storage heating bag Download PDF

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Publication number
CN110567306A
CN110567306A CN201910856892.8A CN201910856892A CN110567306A CN 110567306 A CN110567306 A CN 110567306A CN 201910856892 A CN201910856892 A CN 201910856892A CN 110567306 A CN110567306 A CN 110567306A
Authority
CN
China
Prior art keywords
heat
heat storage
bag
heating
temperature
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.)
Pending
Application number
CN201910856892.8A
Other languages
Chinese (zh)
Inventor
李彦
祗明亮
岳耿
尤国有
王晨鸽
铁维纯
朱群志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai University of Electric Power
Shanghai Electric Power University
Original Assignee
Shanghai Electric Power University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Electric Power University filed Critical Shanghai Electric Power University
Priority to CN201910856892.8A priority Critical patent/CN110567306A/en
Publication of CN110567306A publication Critical patent/CN110567306A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/02Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
    • F28D20/021Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat the latent heat storage material and the heat-exchanging means being enclosed in one container
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/02Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
    • F28D20/028Control arrangements therefor
    • 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

Abstract

The invention relates to an electric heating step solid-liquid heat storage heating bag, wherein a cavity is arranged in the bag body and is connected with a water filling port, a heat display and storage part, two latent heat storage parts and an electric heating assembly are arranged in the cavity to form step heat storage, a phase change material is arranged in the latent heat storage part, the electric heating assembly is formed by sequentially connecting an electric heating wire wound on the phase change material, an over-temperature fuse, a fuse packaged in a shell and a temperature control element packaged in a sealing piece, after the heat storage heating bag is charged, the electric heating assembly converts electric energy into heat energy, after a preset temperature is reached, the phase change material with the phase change function absorbs heat and is sequentially changed from a solid state to a liquid state to store heat, the phase change material is further used as a heat source to heat. The heating bag can increase the heat storage capacity, prolong the heat release time, is beneficial to prolonging and maintaining the body feeling comfortable temperature, is convenient to charge and safe to use, and effectively solves the problems of quick heat loss and short heat maintenance time of the heating bag.

Description

Electric heating step solid-liquid heat storage heating bag
Technical Field
The invention relates to the field of hot water bags, in particular to a solid-liquid phase change step heat storage warming bag.
Background
At present, the demand for the heating bag in the market is more and more, and the performance requirements of consumers on all aspects of the heating bag are also more and more high, and besides the requirement for stable heat supply performance, the heating bag also needs to have market demands of long heat supply time, convenience in use, high safety and the like under the condition of comfortable human perception.
The charging heating type hot water bag on the market mainly has two forms: one is an electrode type hot water bag, and the other is an electric heating wire type hot water bag. The electrode type hot water bag has the electric shock danger once leakage occurs because the electrolyte solution in the electrode type hot water bag is in a charged working state; in addition, the electrodes are in direct contact with liquid, short circuit and explosion are easy to occur, the safety is low, and the state forbids sale; and heating wire formula hot-water bottle is not with liquid direct contact, and the coil has also been kept apart by insulating material and liquid, has ensured safety, but feels comfortable temperature maintenance time short, the heat dissipation is fast after the outage, if want to keep warm continuously then need constantly charge, has aggravated the potential safety hazard.
Patent No. CN201910245077.8, the subject is "a solid-liquid phase change heat accumulation warming bag", it heats and then takes out to get warm through the microwave oven, it is single-stage heat accumulation, it is less to store heat, it is shorter to maintain comfortable temperature time of body feeling, the material phase change temperature of selecting is single, and microwave oven heating temperature should not control and the temperature is higher difficult taking out after heating moreover.
Disclosure of Invention
In order to solve the problems, the invention aims to provide the electrically-heated stepped solid-liquid heat storage warming bag which has longer heat retention time and better meets the use requirement from the aspects of heat storage structure, selection of phase-change materials, thermophysical properties of the phase-change materials, proportion of the phase-change materials and the like.
The purpose of the invention is realized by the following technical scheme:
An electrically-heated stepped solid-liquid heat storage heating bag is provided with a bag body for heating, wherein a cavity is formed in the bag body and is connected with a water filling port, a heat-displaying heat storage part, two latent heat storage parts and an electric heating component are arranged in the cavity to form stepped heat storage, a phase change material is arranged in the latent heat storage parts, the electric heating component is formed by sequentially connecting an electric heating wire wound on the phase change material, an over-temperature fuse, a fuse encapsulated in a shell and a temperature control element encapsulated in a sealing piece, and the temperature control element is installed on the electric heating component and is used for monitoring the temperature of the latent heat storage parts; after the heat storage heating bag is charged, the electric heating assembly converts electric energy into heat energy, after the preset temperature is reached, the phase-change material with the phase-change function absorbs heat and is sequentially changed from a solid state to a liquid state for heat storage, and then the phase-change material is used as a heat source for heating, and the maintaining time of the somatosensory comfortable temperature can be prolonged through step heat storage.
further, the bag body openly is equipped with the double-socket up, and the double-socket is connected with the power and charges, and the super temperature fuse is used for the temperature of control apparent heat storage portion, and the socket is connected with temperature detect switch, and the socket is connected with temperature controller, the fuse on the electric heating assembly respectively through the wire of sealing in the electric heating assembly.
Further, the sensible heat storage part heat accumulation part is composed of a heat transfer medium, and the latent heat storage part is composed of a phase change material and an additive or a modifier.
Further, the heat transfer medium of the sensible heat storage part is a liquid with heat conductivity or a liquid added with a chemical agent; the latent heat storage part is a solid-liquid phase change material with the mass percentage of more than 60%, and the rest is a part of modifier or additive or support material.
Further, the temperature of the sensible heat storage part is less than or equal to 70 ℃, one latent heat storage part is a phase change material with the phase change temperature of 30-41 ℃ and the latent heat of 50J/g-105J/g; the other latent heat storage part is a phase change material with the phase change temperature of 45-62 ℃ and the latent heat of 100J/g-182J/g.
Further, phase change material in the latent heat storage portion is wrapped with a heat conduction packaging layer, and the outside is wrapped with a heating wire and a protective layer.
Further, the heat-conducting packaging layer is one of a metal material layer, a composite material layer and a polymer material layer with heat conductivity and sealing performance.
further, the protective layer is one of a polyimide electric heating film, a pyromellitic polyimide film and a biphenyl polyimide film which have excellent electric strength and heat conduction efficiency.
Further, the heating wire is rechargeable heating wire, and the plug is two rechargeable plugs.
Further, the bag body adopts the rubber material and is equipped with bellied stripe on the surface, can increase the resistance antiskid and fall, increases the heat dissipation capacity and produces the cushioning effect in order to avoid scalding to the heat.
The invention has the beneficial effects that:
According to the principle that solid-liquid phase change latent heat is large in heat absorption, the phase change material is changed from a solid state to a liquid state through heating to store heat and further serve as a heat source to warm, the step heat storage warming bag is divided into three-stage heat storage portions, and compared with single-stage heat storage, the step heat storage warming bag is high in heat storage efficiency; compared with the common electric heating warming bag, the electric heating warming bag has large heat storage quantity and long heat release time, and can prolong the maintaining time of the body feeling comfortable temperature; compared with a microwave oven solid-liquid phase change heat storage heating bag, the microwave oven solid-liquid phase change heat storage heating bag has the advantages that the heating is convenient, the temperature is easy to control, the safety is high, the defect that the temperature is fast to drop after power failure in the prior art is overcome under the combined action of the three-level heat storage parts, and the heat insulation performance is prolonged.
Drawings
Fig. 1 is a schematic structural view of an electric heating step solid-liquid heat storage warming bag of the invention.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
As shown in fig. 1, an electrically heated step solid-liquid heat storage warming bag comprises a bag body 3 and an electric heating component. The bag body 3 surface area stripe's platykurtic, cavity 6 has in the bag body 3, water filling port 2 is connected with cavity 3, 3 inside apparent heat-retaining portions 13 and bilateral symmetry's latent heat-retaining portion 11 and latent heat-retaining portion two 12 of having of cavity, latent heat-retaining portion is inside for phase change material and electric heating element, two latent heat-retaining portions are twined respectively by heating wire 10 and constitute heat accumulation portion, electric heating element is by the heating wire 10 of winding on phase change material, the overtemperature fuse, the fuse of encapsulation in the electric heating element shell, the temperature controller of encapsulation in the sealing member connects gradually forms, the bag body openly is double socket 7 up, be connected with the power and charge, the temperature of apparent heat-retaining portion is monitored to the overtemperature fuse, temperature control switch is connected with socket 7, socket 7 is connected with temperature controller 8 on the electric heating element respectively through the wire of sealing in electric heating element, the fuse. The latent heat storage part is filled with a heat storage material formed by organic, inorganic or organic-inorganic mixtures capable of changing solid phase and liquid phase, the latent heat storage part is sequentially wrapped with a protective layer made of a material with specific performance, after the hot water bag is charged, an electronic element in the hot water bag converts electric energy into heat energy, and after the predetermined temperature is reached, the heat storage material with the phase change function absorbs heat and sequentially changes from a solid state to a liquid state.
The bag body 3 is made of rubber and has raised stripes on the surface, so that resistance can be increased, slipping can be prevented, heat dissipation capacity is increased, and heat can be buffered to avoid scalding.
The heating bag is a three-level heat storage, and the three-level heat storage is a sensible heat storage part 13, a latent heat storage part I11 and a latent heat storage part II 12 respectively.
The sensible heat storage part is a heat transfer medium or a heat transfer medium added with a chemical agent, the latent heat storage part can be composed of an organic phase change material, an inorganic phase change material, a composite material and an additive or a supporting material, each stage of heat storage material is respectively wrapped by a heat conduction material, an electric heating wire is wound outside the heat storage material, and then the heat storage material is uniformly wrapped by a protective layer.
The heat storage materials in the first latent heat storage part 11 and the second latent heat storage part 12 comprise 60-95% of solid-liquid phase change materials, and the balance is additives or modifiers or support materials.
Preparing 65-90% of organic phase change material and 5-10% of modifier or additive by a physical and chemical method to finally prepare a heat storage material heat storage part I11;
And mixing 65-95% of organic phase change material and 5-10% of modifier or support material by mass percent to prepare the second heat storage part 12.
The predetermined temperature is a phase transition temperature, the solid-liquid phase change material is solid at normal temperature, and the phase transition temperature of the solid-liquid phase change material is not more than 70 ℃.
The heat-conducting packaging layer can be a metal material layer, a composite material layer or a polymer material layer with good performance, and is preferably an aluminum foil layer in the example, which has good high temperature resistance, electrical conductivity, oil resistance, sealing property, no toxicity, no odor, barrier property and the like.
The protective layer is a high heat conduction type polyimide film electrothermal film. The front surface of the bag body 3 is provided with an exhaust hole 4 and a hole plug 1. The temperature control switch is provided with a temperature control switch sealing layer.
Example 1:
Taking 300 g of organic phase change material, wherein the main components of the heat storage part 2 in the organic phase change material are higher alkanes or fatty acid and alcohol substances with the melting point of 28-40 ℃, the modifier can be halloysite nanotubes, multi-wall carbon nanotubes, metal nanoparticles and other substances capable of enhancing the performance of the composite material, and the organic phase change material is filled into an aluminum foil layer to prepare the heat storage part 2 with the phase change temperature of 30-41 ℃; in the heat storage part 3, 300 g of organic phase change material is taken, the main components are organic or organic-inorganic composite materials with phase change temperature of 40-60 ℃ such as higher alkanes or fatty acid, alcohols and the like, and the additive can be nano Al2O3Nano Si3N4nano Fe, or graphene nano-sheet or mesoporous SiO2And bentonite and other support materials are modified to obtain a phase change material with the phase change temperature of 45-62 ℃, and the phase change material is filled into an aluminum foil layer to prepare the second latent heat storage part 12. The latent heat storage part I11 and the latent heat storage part II 12 are respectively wrapped by a heat conductive material with strong heat conductivity, such as an aluminum foil layer, then an electric heating wire is wound outside, and then a high-temperature-resistant polyimide film electric heating film is filled in the electric heating wire for packaging.
When the hot water bag is used for the first time, the plug 1 is taken out, a proper amount of water is injected from the water injection port 2, then the plug is tightly covered, and redundant gas is discharged from the exhaust hole 4 and then the exhaust hole is tightly swirled. The electric heating is started by connecting the socket 7 with the upward bag body with a power supply. At the moment, the temperature of the three heat storage parts begins to rise, after a period of time, when the second heat storage part 12 reaches the preset temperature, the temperature control switch 8 is automatically switched off to stop heating, if the temperature controller 8 breaks down, the sensible heat storage part 13 continuously rises in temperature, the overtemperature fuse 15 is switched off to stop heating, and if the temperature controller 8 and the overtemperature fuse 1) both break down, the electric heating element continuously heats up at the moment, the fuse 14 plays a role, and the power is cut off to stop heating. The principle of the latent heat storage part II 12 is the same, and when the latent heat storage part I11 and the latent heat storage part II 12 complete phase change heat storage, the power supply is pulled out. In the using process, firstly, the sensible heat storage part 13 starts to release sensible heat, the temperature of the sensible heat storage part 13 is reduced after a period of time, the temperature of the heating bag is reduced to the phase change temperature of the sensible heat storage part 13, at the moment, the latent heat storage part two 12 starts to release heat, the heat is reduced after the latent heat storage part two 12 releases heat for a period of time, the temperature of the sensible heat storage part 13 is reduced again, and when the temperature of the heating bag is reduced to the phase change temperature of the latent heat storage part one 11, the latent heat storage part one 11 starts to release latent heat to continuously provide comfortable temperature for people. The step heat storage releases more heat than the single-stage heat storage and has high heat storage efficiency, so that the heating bag can maintain comfortable sensible temperature for a long time.
When the electric heating bag is used, water injection is simple, steam exhaust is convenient, the three-stage heat storage device is adopted, the heat storage amount is large, the time for maintaining the comfortable temperature of the body is long, the electric heating wire charging type heating is adopted, the heating is convenient, the temperature controller, the over-temperature fuse and the fuse are adopted for triple protection, the safety and the reliability are realized, the bag body is in a stripe form, the slipping can be prevented, the heat dissipation amount is increased, the heat buffering effect is realized, and the scalding is avoided.
the above description is only an embodiment of the present invention, and is not intended to limit the present invention in any way, although this embodiment is only one of the better solutions, and the structure or content of the present invention can be properly optimized or modified to be equivalent embodiments with equivalent changing effect without departing from the technical scope of the internal structure of the heating bag of the present invention. However, the above-mentioned cases are simply modified, optimized, changed and modified according to the technical essence of the present invention without departing from the technical scheme of the present invention, and all of them fall within the technical scope of the present invention.

Claims (10)

1. The utility model provides an electrical heating step solid-liquid heat accumulation heating bag, has a bag body that is used for the heating, its characterized in that: the bag body is internally provided with a cavity which is connected with a water filling port, a sensible heat storage part, two latent heat storage parts and an electric heating assembly are arranged in the cavity to form step heat storage, a phase-change material is arranged in the latent heat storage part, the electric heating assembly is formed by sequentially connecting an electric heating wire wound on the phase-change material, an overtemperature fuse, a fuse encapsulated in a shell and a temperature control element encapsulated in a sealing element, and the temperature control element is arranged on the electric heating assembly and used for monitoring the temperature of the latent heat storage part; after the heat storage heating bag is charged, the electric heating assembly converts electric energy into heat energy, after the preset temperature is reached, the phase-change material with the phase-change function absorbs heat and is sequentially changed from a solid state to a liquid state for heat storage, and then the phase-change material is used as a heat source for heating, and the maintaining time of the somatosensory comfortable temperature can be prolonged through step heat storage.
2. The electrically heated stepped solid-liquid thermal storage heating bag as claimed in claim 1, wherein: the bag body openly is equipped with the double-socket up, and the double-socket is connected with the power and charges, and the super temperature fuse is used for the temperature of control apparent heat storage portion, and the socket is connected with temperature detect switch, and the socket is connected with temperature controller, the fuse on the electric heating component respectively through the wire of sealing in the electric heating component.
3. The electrically heated stepped solid-liquid thermal storage heating bag as claimed in claim 1, wherein: the sensible heat storage part is composed of a heat transfer medium, and the latent heat storage part is composed of a phase change material and an additive or a modifier.
4. An electrically heated stepped solid-liquid thermal storage heating bag according to claim 3, characterized in that: the heat transfer medium of the sensible heat storage part is liquid with heat conductivity or liquid added with chemical agents; the latent heat storage part is a solid-liquid phase change material with the mass percentage of more than 60%, and the rest is a part of modifier or additive or support material.
5. An electrically heated stepped solid-liquid thermal storage heating bag according to claim 3, characterized in that: the temperature of the sensible heat storage parts is less than or equal to 70 ℃, one latent heat storage part is a phase-change material with the phase-change temperature of 30-41 ℃ and the latent heat of 50J/g-105J/g; the other latent heat storage part is a phase change material with the phase change temperature of 45-62 ℃ and the latent heat of 100J/g-182J/g.
6. The electrically heated stepped solid-liquid thermal storage heating bag as claimed in claim 1, wherein: the phase change material in the latent heat storage part is wrapped by a heat conduction packaging layer, the heating wire is wound outside, and the protection layer is wrapped outside.
7. The electrically heated stepped solid-liquid thermal storage heating bag as claimed in claim 6, wherein: the heat conduction packaging layer is one of a metal material layer, a composite material layer and a high polymer material layer with heat conductivity and sealing performance.
8. The electrically heated stepped solid-liquid thermal storage heating bag as claimed in claim 6, wherein: the protective layer is one of a polyimide electric heating film, a pyromellitic polyimide film and a biphenyl polyimide film with excellent electric strength and heat conduction efficiency.
9. The electrically heated stepped solid-liquid thermal storage heating bag as claimed in claim 1, wherein: the heating wire is rechargeable heating wire, and the plug is two electric plug that charge.
10. The electrically heated stepped solid-liquid thermal storage heating bag as claimed in claim 1, wherein: the bag body adopts the rubber material and is equipped with bellied stripe on the surface, can increase the resistance antiskid and fall, increases the heat dissipation capacity and to the heat production cushioning effect in order to avoid scalding.
CN201910856892.8A 2019-09-11 2019-09-11 Electric heating step solid-liquid heat storage heating bag Pending CN110567306A (en)

Priority Applications (1)

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CN201910856892.8A CN110567306A (en) 2019-09-11 2019-09-11 Electric heating step solid-liquid heat storage heating bag

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Application Number Priority Date Filing Date Title
CN201910856892.8A CN110567306A (en) 2019-09-11 2019-09-11 Electric heating step solid-liquid heat storage heating bag

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CN110567306A true CN110567306A (en) 2019-12-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111023555A (en) * 2019-12-25 2020-04-17 永康市吉泉铜制品有限公司 Container with preheating block

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29921341U1 (en) * 1999-12-03 2000-02-17 Schlesiger Axel Heating pad
EP2559411A1 (en) * 2011-08-19 2013-02-20 Leifheit Ag Heat emitting product
CN103340712A (en) * 2013-07-16 2013-10-09 上海大学 Electric hot-water bag utilizing phase change latent heat and manufacturing method thereof
CN204026829U (en) * 2014-07-09 2014-12-17 上海英科医疗用品有限公司 A kind of novel microwave oven heating service bag
CN205386200U (en) * 2015-12-16 2016-07-20 深圳市泛锐利宝科技有限公司 Hot -water bag
CN205683189U (en) * 2016-04-11 2016-11-16 安徽唯你储能技术有限公司 A kind of electric hot-water bag
CN109916213A (en) * 2019-03-28 2019-06-21 孙维国 A kind of solid-liquid phase change accumulation of heat heating bag
CN110123516A (en) * 2014-01-23 2019-08-16 Wfi沃姆费拉盛创新公司(有限责任) Heating device with latent heat accumulator unit

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29921341U1 (en) * 1999-12-03 2000-02-17 Schlesiger Axel Heating pad
EP2559411A1 (en) * 2011-08-19 2013-02-20 Leifheit Ag Heat emitting product
CN103340712A (en) * 2013-07-16 2013-10-09 上海大学 Electric hot-water bag utilizing phase change latent heat and manufacturing method thereof
CN110123516A (en) * 2014-01-23 2019-08-16 Wfi沃姆费拉盛创新公司(有限责任) Heating device with latent heat accumulator unit
CN204026829U (en) * 2014-07-09 2014-12-17 上海英科医疗用品有限公司 A kind of novel microwave oven heating service bag
CN205386200U (en) * 2015-12-16 2016-07-20 深圳市泛锐利宝科技有限公司 Hot -water bag
CN205683189U (en) * 2016-04-11 2016-11-16 安徽唯你储能技术有限公司 A kind of electric hot-water bag
CN109916213A (en) * 2019-03-28 2019-06-21 孙维国 A kind of solid-liquid phase change accumulation of heat heating bag

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111023555A (en) * 2019-12-25 2020-04-17 永康市吉泉铜制品有限公司 Container with preheating block

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