CN112831315A - Preparation method of novel efficient ground source heat pump buried pipe heat exchange medium - Google Patents
Preparation method of novel efficient ground source heat pump buried pipe heat exchange medium Download PDFInfo
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- CN112831315A CN112831315A CN202110006894.5A CN202110006894A CN112831315A CN 112831315 A CN112831315 A CN 112831315A CN 202110006894 A CN202110006894 A CN 202110006894A CN 112831315 A CN112831315 A CN 112831315A
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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
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/10—Liquid materials
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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
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/14—Solid materials, e.g. powdery or granular
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T10/10—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
- F24T10/13—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The invention discloses a preparation method of a novel efficient ground source heat pump buried pipe heat exchange medium, relates to the technical field of ground source heat pump buried pipe heat exchange media, and aims to solve the problem that the existing ground source heat pump buried pipe heat exchange medium is general in efficiency. The nano metal powder is one or more of iron powder, aluminum powder, copper powder and silver powder, the average particle size of the nano metal powder is 5-40nm, the average particle size of the modified graphene is 10-60nm, the salt-containing solution comprises organic acid or salt formed by inorganic acid alkali metal or alkaline earth metal, the inorganic acid comprises hydrochloric acid, phosphoric acid, sulfuric acid and nitric acid, the organic acid comprises humic acid or other substituted or unsubstituted C1-C6 monobasic or polybasic acid, and the content of the inorganic acid and the organic acid is not more than 60-75% of the total amount of the solution.
Description
Technical Field
The invention relates to the technical field of ground source heat pump buried pipe heat exchange media, in particular to a preparation method of a novel efficient ground source heat pump buried pipe heat exchange medium.
Background
The ground source heat pump is a device for transferring low-grade heat energy to high-grade heat energy by inputting a small amount of high-grade energy (such as electric energy and the like) from a land shallow layer energy source. Usually, the ground source heat pump consumes 1kwh of energy, and users can obtain heat or cold more than 4 kwh.
However, the efficiency of the heat exchange medium of the buried pipe of the existing ground source heat pump is general; therefore, the existing requirements are not met, and a preparation method of a novel efficient ground source heat pump buried pipe heat exchange medium is provided for the requirements.
Disclosure of Invention
The invention aims to provide a preparation method of a novel high-efficiency ground source heat pump buried pipe heat exchange medium, and aims to solve the problem that the existing ground source heat pump buried pipe heat exchange medium in the background art has general efficiency.
In order to achieve the purpose, the invention provides the following technical scheme: a preparation method of a novel efficient ground source heat pump buried pipe heat exchange medium comprises the following components in percentage by mass:
30-40% of ethylene glycol;
5-10% of a stabilizer;
30-50% of clear water;
5-15% of nano metal powder;
5-10% of modified graphene;
15-20% of salt-containing solution;
1% of odor agent;
5-7% of boron oxide;
1-5% of defoaming agent.
Preferably, the nano metal powder is one or more of iron powder, aluminum powder, copper powder and silver powder, the average particle size of the nano metal powder is 5-40nm, and the average particle size of the modified graphene is 10-60 nm.
Preferably, the salt-containing solution comprises a salt of an alkali metal or alkaline earth metal of an organic or inorganic acid.
Preferably, the inorganic acid comprises hydrochloric acid, phosphoric acid, sulfuric acid and nitric acid, the organic acid comprises humic acid or other substituted or unsubstituted C1-C6 mono-or polybasic acid, and the content of the inorganic acid and the organic acid in the solution is not more than 60-75% of the total amount of the solution.
Preferably, the odor agent is composed of one of ethanethiol, tetrahydrothiophene and n-butylthiol.
Preferably, the content of one of ethanethiol, tetrahydrothiophene and n-butylmercaptan is not higher than 0.02-0.05% of the total amount of odorous agent.
Preferably, the dispersant is made of sodium dodecylbenzene sulfonate.
Preferably, the defoaming agent is an aqueous defoaming agent, and the aqueous defoaming agent is one of a polysiloxane-type defoaming agent or a polyether-modified polysiloxane-type defoaming agent.
Preferably, the preparation method of the novel efficient ground source heat pump buried pipe heat exchange medium comprises the following steps:
the method comprises the following steps: screening all the ingredients, sterilizing the screened ingredients, weighing and counting the screened ingredients, and dividing the weighed ingredients into 3-5 parts for storage;
step two: heating the water to 120 ℃ at 100-;
step three: heating clear water in a stirring mechanism, keeping the temperature at 80-100 deg.C, sequentially adding ethylene glycol, stabilizer, defoaming agent, and odor agent, stirring for 35-45min, stopping heating, and maintaining the temperature for 1-1.5 hr;
step four: grinding the nano metal powder by using a grinder, and disinfecting and storing a finished product after grinding;
step five: dispersing the ground nano metal powder particles and the modified graphene into water containing a dispersing agent and ethylene glycol by adopting an ultrasonic dispersion method, and stirring for 15-25min again;
step six: adding salt-containing solution and boron oxide, stirring for 10-15min, adding appropriate amount of clear water again, cooling to 50-60 deg.C, stirring for 10-20min, and cooling to room temperature to obtain heat exchange medium.
Preferably, the following components: in step three, rabbling mechanism includes the agitator tank, driving motor is installed to the intermediate position department of agitator tank upper end, the shaft coupling is installed to driving motor's output, the transfer line is installed to the lower extreme of shaft coupling, and driving motor's output passes through the shaft coupling and is connected with the transfer line transmission, install the stirring leaf on the outer wall of transfer line, and the stirring leaf installs a plurality of, the pan feeding mouth is installed to one side of driving motor, the charge door is installed to driving motor's opposite side, the feed opening is installed to the lower extreme of agitator tank.
Compared with the prior art, the invention has the beneficial effects that:
the invention improves the synergistic effect of general heat exchange media and improves the heat exchange efficiency of the general heat exchange media by the raw material proportion, improves the overall heat exchange performance by taking ethylene glycol as a main body and adding nano metal powder and modified graphene, leads the liquid structure of the heat exchange media to be doped with fixed particles and leads the structure to be changed into the liquid fixed phase for storage, leads the heat exchange media to form better micro convection, reduces the internal attenuation speed by boron oxide, improves the stability of the whole heat exchange media by using a stabilizing agent, further enhances the stability of the nano metal powder and the modified graphene, prolongs the heat exchange effect maintenance, leads odor agent to be convenient for users to know the internal leakage condition, thus improving the overall safety and the anti-leakage effect, is suitable for ground source heat pump buried pipes and is compared with the general ground source heat pump buried pipe heat exchange media, the invention strengthens the synergistic action among all heat exchange medium ingredients, improves the attenuation speed of heat exchange by colleagues with improved heat exchange efficiency, and strengthens and improves the safety, thereby being more suitable for users to use.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
in the figure: 1. a stirring tank; 2. a drive motor; 3. a coupling; 4. a transmission rod; 5. stirring blades; 6. a feeding port; 7. a feed inlet; 8. and (4) a feed opening.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
Referring to fig. 1-2, an embodiment of the present invention is shown: a preparation method of a novel efficient ground source heat pump buried pipe heat exchange medium comprises the following components in percentage by mass:
25% of ethylene glycol;
5% of a stabilizer;
25% of clear water;
10% of nano metal powder;
10% of modified graphene;
12% of salt-containing solution;
1% of odor agent;
8% of boron oxide;
and 4% of defoaming agent.
Further, the nano metal powder is one or more of iron powder, aluminum powder, copper powder and silver powder, the average particle size of the nano metal powder is 5-40nm, and the average particle size of the modified graphene is 10-60 nm.
Further, the salt-containing solution includes salts of alkali metals or alkaline earth metals of organic acids or inorganic acids.
Further, the inorganic acid comprises hydrochloric acid, phosphoric acid, sulfuric acid and nitric acid, the organic acid comprises humic acid or other substituted or unsubstituted C1-C6 mono-or polybasic acid, and the content of the inorganic acid and the organic acid in the solution is not more than 60-75% of the total amount of the solution.
Furthermore, the odor agent is composed of one of ethanethiol, tetrahydrothiophene and n-butylthiol.
Further, the content of one of ethanethiol, tetrahydrothiophene and n-butylmercaptan is not higher than 0.02-0.05% of the total amount of the odor control agent.
Further, the dispersant is made of sodium dodecylbenzene sulfonate.
Further, the defoaming agent is an aqueous defoaming agent, and the aqueous defoaming agent is one of a polysiloxane-type defoaming agent or a polyether-modified polysiloxane-type defoaming agent.
Further, a preparation method of the novel efficient ground source heat pump buried pipe heat exchange medium is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: screening all the ingredients, sterilizing the screened ingredients, weighing and counting the screened ingredients, and dividing the weighed ingredients into 3-5 parts for storage;
step two: heating the water to 120 ℃ at 100-;
step three: heating clear water in a stirring mechanism, keeping the temperature at 80-100 deg.C, sequentially adding ethylene glycol, stabilizer, defoaming agent, and odor agent, stirring for 35-45min, stopping heating, and maintaining the temperature for 1-1.5 hr;
step four: grinding the nano metal powder by using a grinder, and disinfecting and storing a finished product after grinding;
step five: dispersing the ground nano metal powder particles and the modified graphene into water containing a dispersing agent and ethylene glycol by adopting an ultrasonic dispersion method, and stirring for 15-25min again;
step six: adding salt-containing solution and boron oxide, stirring for 10-15min, adding appropriate amount of clear water again, cooling to 50-60 deg.C, stirring for 10-20min, and cooling to room temperature to obtain heat exchange medium.
Further, in the third step, the rabbling mechanism includes agitator tank 1, driving motor 2 is installed to the intermediate position department of 1 upper end of agitator tank, shaft coupling 3 is installed to driving motor 2's output, transfer line 4 is installed to the lower extreme of shaft coupling 3, driving motor 2's output passes through shaft coupling 3 and is connected with the transmission of transfer line 4 transmission, install stirring leaf 5 on transfer line 4's the outer wall, and stirring leaf 5 installs a plurality of, pan feeding mouth 6 is installed to one side of driving motor 2, charge door 7 is installed to driving motor 2's opposite side, feed opening 8 is installed to agitator tank 1's lower extreme.
Example 1
Referring to fig. 1-2, an embodiment of the present invention is shown: a preparation method of a novel efficient ground source heat pump buried pipe heat exchange medium comprises the following components in percentage by mass:
30% of ethylene glycol;
3% of a stabilizer;
30% of clear water;
6% of nano metal powder;
6% of modified graphene;
9% of salt-containing solution;
1% of odor agent;
10% of boron oxide;
5% of defoaming agent.
Further, the nano metal powder is one or more of iron powder, aluminum powder, copper powder and silver powder, the average particle size of the nano metal powder is 5-40nm, and the average particle size of the modified graphene is 10-60 nm.
Further, the salt-containing solution includes salts of alkali metals or alkaline earth metals of organic acids or inorganic acids.
Further, the inorganic acid comprises hydrochloric acid, phosphoric acid, sulfuric acid and nitric acid, the organic acid comprises humic acid or other substituted or unsubstituted C1-C6 mono-or polybasic acid, and the content of the inorganic acid and the organic acid in the solution is not more than 60-75% of the total amount of the solution.
Furthermore, the odor agent is composed of one of ethanethiol, tetrahydrothiophene and n-butylthiol.
Further, the content of one of ethanethiol, tetrahydrothiophene and n-butylmercaptan is not higher than 0.02-0.05% of the total amount of the odor control agent.
Further, the dispersant is made of sodium dodecylbenzene sulfonate.
Further, the defoaming agent is an aqueous defoaming agent, and the aqueous defoaming agent is one of a polysiloxane-type defoaming agent or a polyether-modified polysiloxane-type defoaming agent.
Further, a preparation method of the novel efficient ground source heat pump buried pipe heat exchange medium is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: screening all the ingredients, sterilizing the screened ingredients, weighing and counting the screened ingredients, and dividing the weighed ingredients into 3-5 parts for storage;
step two: heating the water to 120 ℃ at 100-;
step three: heating clear water in a stirring mechanism, keeping the temperature at 80-100 deg.C, sequentially adding ethylene glycol, stabilizer, defoaming agent, and odor agent, stirring for 35-45min, stopping heating, and maintaining the temperature for 1-1.5 hr;
step four: grinding the nano metal powder by using a grinder, and disinfecting and storing a finished product after grinding;
step five: dispersing the ground nano metal powder particles and the modified graphene into water containing a dispersing agent and ethylene glycol by adopting an ultrasonic dispersion method, and stirring for 15-25min again;
step six: adding salt-containing solution and boron oxide, stirring for 10-15min, adding appropriate amount of clear water again, cooling to 50-60 deg.C, stirring for 10-20min, and cooling to room temperature to obtain heat exchange medium.
Further, in the third step, the rabbling mechanism includes agitator tank 1, driving motor 2 is installed to the intermediate position department of 1 upper end of agitator tank, shaft coupling 3 is installed to driving motor 2's output, transfer line 4 is installed to the lower extreme of shaft coupling 3, driving motor 2's output passes through shaft coupling 3 and is connected with the transmission of transfer line 4 transmission, install stirring leaf 5 on transfer line 4's the outer wall, and stirring leaf 5 installs a plurality of, pan feeding mouth 6 is installed to one side of driving motor 2, charge door 7 is installed to driving motor 2's opposite side, feed opening 8 is installed to agitator tank 1's lower extreme.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. A novel high-efficiency ground source heat pump buried pipe heat exchange medium is characterized by comprising the following components in percentage by mass:
25-35% of ethylene glycol;
5-10% of a stabilizer;
25-40% of clear water;
5-15% of nano metal powder;
5-10% of modified graphene;
10-15% of salt-containing solution;
1% of odor agent;
5-7% of boron oxide;
1-5% of defoaming agent.
2. The novel efficient ground source heat pump buried pipe heat exchange medium of claim 1, is characterized in that: the nano metal powder is one or more of iron powder, aluminum powder, copper powder and silver powder, the average particle size of the nano metal powder is 5-40nm, and the average particle size of the modified graphene is 10-60 nm.
3. The novel efficient ground source heat pump buried pipe heat exchange medium of claim 1, is characterized in that: the salt-containing solution comprises a salt of an organic or inorganic acid with an alkali metal or alkaline earth metal.
4. The novel efficient ground source heat pump buried pipe heat exchange medium of claim 4, is characterized in that: the inorganic acid comprises hydrochloric acid, phosphoric acid, sulfuric acid and nitric acid, the organic acid comprises humic acid or other substituted or unsubstituted C1-C6 mono-or polybasic acid, and the content of the inorganic acid and the organic acid in the solution is not more than 60-75% of the total amount of the solution.
5. The novel efficient ground source heat pump buried pipe heat exchange medium of claim 1, is characterized in that: the odor agent is one of ethanethiol, tetrahydrothiophene and n-butylmercaptan.
6. The novel efficient ground source heat pump buried pipe heat exchange medium of claim 6, wherein: the content of one of ethanethiol, tetrahydrothiophene and n-butylmercaptan is not higher than 0.02-0.05% of the total amount of the odor agent.
7. The novel efficient ground source heat pump buried pipe heat exchange medium of claim 1, is characterized in that: the dispersing agent is prepared from sodium dodecyl benzene sulfonate.
8. The novel efficient ground source heat pump buried pipe heat exchange medium of claim 1, is characterized in that: the defoaming agent is a water-based defoaming agent, and the water-based defoaming agent is one of a polysiloxane defoaming agent or a polyether modified polysiloxane defoaming agent.
9. The method for preparing the novel high-efficiency ground source heat pump buried pipe heat exchange medium according to any one of claims 1 to 8, characterized in that: the method comprises the following steps:
the method comprises the following steps: screening all the ingredients, sterilizing the screened ingredients, weighing and counting the screened ingredients, and dividing the weighed ingredients into 3-5 parts for storage;
step two: heating the water to 120 ℃ at 100-;
step three: heating clear water in a stirring mechanism, keeping the temperature at 80-100 deg.C, sequentially adding ethylene glycol, stabilizer, defoaming agent, and odor agent, stirring for 35-45min, stopping heating, and maintaining the temperature for 1-1.5 hr;
step four: grinding the nano metal powder by using a grinder, and disinfecting and storing a finished product after grinding;
step five: dispersing the ground nano metal powder particles and the modified graphene into water containing a dispersing agent and ethylene glycol by adopting an ultrasonic dispersion method, and stirring for 15-25min again;
step six: adding salt-containing solution and boron oxide, stirring for 10-15min, adding appropriate amount of clear water again, cooling to 50-60 deg.C, stirring for 10-20min, and cooling to room temperature to obtain heat exchange medium.
10. The preparation method of the novel high-efficiency ground source heat pump buried pipe heat exchange medium according to claim 9, characterized in that: in the third step, rabbling mechanism includes agitator tank (1), intermediate position department of agitator tank (1) upper end installs driving motor (2), shaft coupling (3) are installed to the output of driving motor (2), transfer line (4) are installed to the lower extreme of shaft coupling (3), and the output of driving motor (2) passes through shaft coupling (3) and is connected with transfer line (4) transmission, install stirring leaf (5) on the outer wall of transfer line (4), and stir leaf (5) and install a plurality of, pan feeding mouth (6) are installed to one side of driving motor (2), charge door (7) are installed to the opposite side of driving motor (2), feed opening (8) are installed to the lower extreme of agitator tank (1).
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| CN202110006894.5A CN112831315A (en) | 2021-01-05 | 2021-01-05 | Preparation method of novel efficient ground source heat pump buried pipe heat exchange medium |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160021617A (en) * | 2014-08-18 | 2016-02-26 | 현대자동차주식회사 | Nanofluid having improved cooling efficiency |
| CN108431168A (en) * | 2015-12-22 | 2018-08-21 | 安赛乐米塔尔公司 | The method conducted heat between metal or non-metal article and heat-transfer fluid |
| CN211098988U (en) * | 2019-08-24 | 2020-07-28 | 力和工程服务(苏州)有限公司 | Reation kettle that chemical industry pharmaceutical production used |
-
2021
- 2021-01-05 CN CN202110006894.5A patent/CN112831315A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160021617A (en) * | 2014-08-18 | 2016-02-26 | 현대자동차주식회사 | Nanofluid having improved cooling efficiency |
| CN108431168A (en) * | 2015-12-22 | 2018-08-21 | 安赛乐米塔尔公司 | The method conducted heat between metal or non-metal article and heat-transfer fluid |
| CN211098988U (en) * | 2019-08-24 | 2020-07-28 | 力和工程服务(苏州)有限公司 | Reation kettle that chemical industry pharmaceutical production used |
Non-Patent Citations (2)
| Title |
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| 王曌 等: "石墨烯-铜纳米流体液滴蒸发特性的实验研究", 《制冷技术》 * |
| 胡郁乐 等: "《深部地热钻井与成井技术》", 31 October 2013, 中国地质大学出版社有限责任公司 * |
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Application publication date: 20210525 |