CN109135681A - A kind of preparation method of thermal storage heating phase-change heat-storage material - Google Patents
A kind of preparation method of thermal storage heating phase-change heat-storage material Download PDFInfo
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- CN109135681A CN109135681A CN201810900362.4A CN201810900362A CN109135681A CN 109135681 A CN109135681 A CN 109135681A CN 201810900362 A CN201810900362 A CN 201810900362A CN 109135681 A CN109135681 A CN 109135681A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
- C09K5/063—Materials absorbing or liberating heat during crystallisation; Heat storage materials
Abstract
The present invention relates to a kind of preparation methods of thermal storage heating phase-change heat-storage material, the preparation method comprises the following steps: step 1: bauxite or aluminium hydroxide to be crushed to the granularity of 120 mesh, A powder is made, step 2: 20 parts of 25 parts by weight of A powder and 98% concentrated sulfuric acid, 40 parts of water adds reaction 2 hours in people's reaction kettle, step 3: by the reaction solution in second step in reaction kettle through settling, clarified solution is added sulfuric acid and is neutralized to neutral or alkalescence, then 115 DEG C or so are concentrated into, through cooling and solidifying, it crushes and powder B is made, step 4: by 90 parts in third step of powder B and 1 part of nanoscale calcirm-fluoride, 7 parts of expanded graphite is sufficiently mixed obtained product, air pressure < 1MPa in reaction kettle in the second step；The present invention has the advantages that storage density is high, thermal coefficient is big, thermal shock resistance is good, long service life, low in cost, pollution-free, nonhazardous.
Description
Technical field
The invention belongs to the technical fields of phase-change heat-storage material, and in particular to a kind of thermal storage heating phase-change heat-storage material
Preparation method.
Background technique
Heating system generally requires to provide the user with 70 DEG C or so of hot water, and therefore, it is desirable to heat accumulation phase transition temperatures on 90 DEG C of left sides
The right side, by that could provide 70 DEG C or more of hot water after heat exchange to heat user, the present invention relates to a kind of phase transition temperatures at 90 DEG C or so,
Enthalpy of phase change is greater than the phase-change heat-storage material preparation method of 200kJ/kg, and in view of the deficiencies of the prior art, the present invention provides one kind to fill
Heat release is stable, phase transformation heat content is high, the preparation method of easily manufactured thermal storage heating phase-change heat-storage material.
Summary of the invention
In view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of charge and discharge thermostabilizations, phase transformation heat content height, manufacturer
Just the preparation method of thermal storage heating phase-change heat-storage material.
The object of the present invention is achieved like this: a kind of preparation method of thermal storage heating phase-change heat-storage material, the system
Preparation Method the following steps are included:
Step 1: bauxite or aluminium hydroxide to be crushed to the granularity of 120 mesh, A powder is made.
It is reacted 2 hours in people's reaction kettle step 2: 20 parts of 25 parts by weight of A powder and 98% concentrated sulfuric acid, 40 parts of water add.
Step 3: clarified solution is added sulfuric acid and is neutralized to neutrality or micro- by the reaction solution in second step in reaction kettle through settling
Then alkalinity is concentrated into 115 DEG C or so, cooled and solidified, and crushes and powder B is made.
Step 4: 7 parts of expanded graphite is sufficiently mixed by 90 parts in third step of powder B and 1 part of nanoscale calcirm-fluoride
It closes and product is made.
Air pressure is 0.6MPa in reaction kettle in the second step.
Beneficial effects of the present invention: the thermal storage heating prepared through the invention is high with phase-change heat-storage material phase transformation heat content,
Charge and discharge thermostabilization.
Specific embodiment
Embodiment 1
A kind of preparation method of thermal storage heating phase-change heat-storage material, the preparation method comprises the following steps:
Step 1: bauxite or aluminium hydroxide to be crushed to the granularity of 320 mesh, A powder is made.
It is reacted 2 hours in people's reaction kettle step 2: 30 parts of 30 parts by weight of A powder and 98% concentrated sulfuric acid, 55 parts of water add.
Step 3: clarified solution is added sulfuric acid and is neutralized to neutrality or micro- by the reaction solution in second step in reaction kettle through settling
Then alkalinity is concentrated into 115 DEG C or so, cooled and solidified, and crushes and powder B is made.
Step 4: by 90 parts in third step of powder B and 3 parts of nanoscale calcirm-fluoride, 9 parts of expanded graphite is abundant
It is mixed to prepare product.
Air pressure is 0.6MPa in reaction kettle in the second step.
Embodiment 2
A kind of preparation method of thermal storage heating phase-change heat-storage material, the preparation method comprises the following steps:
Step 1: bauxite or aluminium hydroxide to be crushed to the granularity of 200 mesh, A powder is made.
It is reacted 2 hours in people's reaction kettle step 2: 28 parts of 28 parts by weight of A powder and 98% concentrated sulfuric acid, 50 parts of water add.
Step 3: clarified solution is added sulfuric acid and is neutralized to neutrality or micro- by the reaction solution in second step in reaction kettle through settling
Then alkalinity is concentrated into 115 DEG C or so, cooled and solidified, and crushes and powder B is made.
Step 4: 8 parts of expanded graphite is sufficiently mixed by 90 parts in third step of powder B and 2 parts of nanoscale calcirm-fluoride
It closes and product is made.
Air pressure is 0.8MPa in reaction kettle in the second step.
Embodiment 3
A kind of preparation method of thermal storage heating phase-change heat-storage material, the preparation method comprises the following steps:
Step 1: bauxite or aluminium hydroxide to be crushed to the granularity of 300 mesh, A powder is made.
It is reacted 2 hours in people's reaction kettle step 2: 28 parts of 28 parts by weight of A powder and 98% concentrated sulfuric acid, 50 parts of water add.
Step 3: clarified solution is added sulfuric acid and is neutralized to neutrality or micro- by the reaction solution in second step in reaction kettle through settling
Then alkalinity is concentrated into 115 DEG C or so, cooled and solidified, and crushes and powder B is made.
Step 4: 9 parts of expanded graphite is sufficiently mixed by 90 parts in third step of powder B and 3 parts of nanoscale calcirm-fluoride
It closes and product is made.
Air pressure is 0.2MPa in reaction kettle in the second step.
Embodiment 4
A kind of preparation method of thermal storage heating phase-change heat-storage material, the preparation method comprises the following steps:
Step 1: bauxite or aluminium hydroxide to be crushed to the granularity of 150 mesh, A powder is made.
It is reacted 2 hours in people's reaction kettle step 2: 30 parts of 30 parts by weight of A powder and 98% concentrated sulfuric acid, 50 parts of water add.
Step 3: clarified solution is added sulfuric acid and is neutralized to neutrality or micro- by the reaction solution in second step in reaction kettle through settling
Then alkalinity is concentrated into 115 DEG C or so, cooled and solidified, and crushes and powder B is made.
Step 4: 8 parts of expanded graphite is sufficiently mixed by 90 parts in third step of powder B and 3 parts of nanoscale calcirm-fluoride
It closes and product is made.
Air pressure is 0.5MPa in reaction kettle in the second step.
Specific embodiment is to further explanation of the invention rather than limits, and is existed for those of ordinary skills
Further transformation is done to structure in the case where not departing from substantive content of the present invention, and all these transformation all should belong to institute of the present invention
Attached scope of protection of the claims.
Claims (2)
1. a kind of preparation method of thermal storage heating phase-change heat-storage material, it is characterised in that: the preparation method includes following step
It is rapid:
Step 1: bauxite or aluminium hydroxide to be crushed to the granularity of 120~320 mesh, A powder is made.
Step 2: 25~30 parts by weight of A powder adds in people's reaction kettle instead with 20~30 parts of 98% concentrated sulfuric acid, 40~55 parts of water
It answers 2 hours.
Step 3: clarified solution is added sulfuric acid and is neutralized to neutral or alkalescence by the reaction solution in second step in reaction kettle through settling,
Then 115 DEG C or so are concentrated into, is cooled and solidified, crushes and powder B is made.
Step 4: by 90 parts in third step of powder B and 1~3 part of nanoscale calcirm-fluoride, 7~9 parts of expanded graphite is abundant
It is mixed to prepare product.
2. a kind of preparation method of thermal storage heating phase-change heat-storage material according to claim 1, it is characterised in that: described
Air pressure < 1MPa in reaction kettle in second step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810900362.4A CN109135681A (en) | 2018-08-09 | 2018-08-09 | A kind of preparation method of thermal storage heating phase-change heat-storage material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810900362.4A CN109135681A (en) | 2018-08-09 | 2018-08-09 | A kind of preparation method of thermal storage heating phase-change heat-storage material |
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| CN109135681A true CN109135681A (en) | 2019-01-04 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1958712A (en) * | 2006-09-26 | 2007-05-09 | 上海海事大学 | Material for storing heat of phase change in low temperature, and preparation method |
| CN103641143A (en) * | 2013-12-12 | 2014-03-19 | 内蒙古大唐国际再生资源开发有限公司 | Production method of aluminum sulfate octadecahydrate |
| CN105987508A (en) * | 2015-02-05 | 2016-10-05 | 北京博工安能科技有限公司 | Energy accumulation and heat exchange device and water heater comprising same |
| CN106479444A (en) * | 2015-08-25 | 2017-03-08 | 中南大学 | Low temperature heat composite phase change heat-accumulation material |
-
2018
- 2018-08-09 CN CN201810900362.4A patent/CN109135681A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1958712A (en) * | 2006-09-26 | 2007-05-09 | 上海海事大学 | Material for storing heat of phase change in low temperature, and preparation method |
| CN103641143A (en) * | 2013-12-12 | 2014-03-19 | 内蒙古大唐国际再生资源开发有限公司 | Production method of aluminum sulfate octadecahydrate |
| CN105987508A (en) * | 2015-02-05 | 2016-10-05 | 北京博工安能科技有限公司 | Energy accumulation and heat exchange device and water heater comprising same |
| CN106479444A (en) * | 2015-08-25 | 2017-03-08 | 中南大学 | Low temperature heat composite phase change heat-accumulation material |
Non-Patent Citations (1)
| Title |
|---|
| 袁小永: "用于太阳能热水系统的无机水合盐相变蓄热装置研究", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
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Effective date of registration: 20200312 Address after: 100089 Institute of process engineering, Chinese Academy of Sciences, No.1, North Second Lane, Zhongguancun, Haidian District, Beijing Applicant after: Leng Guanghui Address before: 458000 Qishui Road, Qibin District, Hebi City, Henan Province (in Henan Dongda High Temperature Energy Saving Materials Co., Ltd.) Applicant before: HENAN SITERUI ENERGY SAVING TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20220713 Address after: 430000 room 205, No. 01, building 3, new energy R & D base, No. 36, Tangxun Hubei Road, Donghu New Technology Development Zone, Wuhan, Hubei Province Applicant after: Guohui (Wuhan) smart energy Co.,Ltd. Address before: 100089 Institute of process engineering, Chinese Academy of Sciences, No. 1, beiertao, Zhongguancun, Haidian District, Beijing Applicant before: Leng Guanghui |
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