CN202200602U - Shark-simulated combined damping device - Google Patents
Shark-simulated combined damping device Download PDFInfo
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- CN202200602U CN202200602U CN2011203320501U CN201120332050U CN202200602U CN 202200602 U CN202200602 U CN 202200602U CN 2011203320501 U CN2011203320501 U CN 2011203320501U CN 201120332050 U CN201120332050 U CN 201120332050U CN 202200602 U CN202200602 U CN 202200602U
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Abstract
The utility model relates to the technical field of simulation, in particular to a damping device, which comprises a kieselguhr solidified layer. At least two nano microcellular structures are arranged in the kieselguhr solidified layer, and damping agent is filled in the nano microcellular structures in the kieselguhr solidified layer. According to the above technical scheme, damping function of shark scale simulated grooves and damping function of shark-simulated slowly-released self-lubricating mucus can be developed simultaneously.
Description
Technical field
The utility model relates to the bionics techniques field, is specifically related to a kind of damping device.
Background technology
Shark is the swimming top-notch player in the ocean, and its speed of cruising in water is about 5kph, when chasing prey, can instantaneously break out 70kph.The height of shark trip speed is except outside the Pass the streamlined body with its standard has, and the mucus of also special with it micron order scale groove structure and the secretion of its body surface is in close relations, and both compound actions are called " sharkskin effect ".Current, imitation shagreen drag reduction mechanism, the high imitative shark composite anti-drag true to nature of manufacturing surface have become the focus of domestic and international research, and ROV and long distance pipeline drag reduction field have important use value under water.
Utilizing the drag reducer drag reduction is a kind of drag reduction method efficiently, is widely used in the fluid drag-reduction of submarine navigation device surface or long-distance transmission pipeline (oil transportation, gas, water etc.) internal face.Drag reducer commonly used mainly contains polyacrylamide (PAM) and aqueous epoxy resins etc., although drag reduction usefulness is high, price is comparatively expensive usually.Utilize the drag reducer drag reduction to compare, have drag reduction efficiency height (drag reduction efficiency is usually more than 15%), be convenient to advantages such as enforcement with structural type drag reduction methods such as utilizing groove.The enforcement of this drag reduction method mainly is employed in the ROV surface at present or the long distance pipeline internal face directly discharges or the mode of coating drag reducer; Often make a large amount of drag reducers useful effect effectively not distinguish in turbulent flow; Have deficiencies such as drag reducer consumption is fast, consumption big, waste is serious, need constantly to replenish, thereby the operation and maintenance cost is higher relatively.
In addition, diatomite is the silicastone that ancient times, the remains deposit generated of diatom, mainly is made up of the siliceous remains of ancient times diatom and other microorganisms (radiolitid, sponge etc.), and main chemical is a silica.Diatomite exists as mineral products at occurring in nature in a large number, thereby wide material sources, cheap.Exquisiteness, light weight, porosity are big because diatomite has, adsorptivity and permeability is strong, chemical property is stable, wear-resisting, heat-resisting, characteristics such as certain intensity are arranged, and are a kind of materials with significant application value.
The utility model content
The purpose of the utility model is, a kind of imitative shark composite anti-drag device is provided, to solve the problems of the technologies described above.
The technical problem that the utility model solved can adopt following technical scheme to realize:
Imitative shark composite anti-drag device is characterized in that, comprises a diatomite cured layer, is provided with at least two nanometer micropore structures in the said diatomite cured layer, is provided with drag reducer in the nanometer micropore structure in the said diatomite cured layer.
The utility model is through the diatomite curing process, diatomite is solidified into the diatomite cured layer after, its solidification intensity is at 15MPa～40MPa, porosity is 40%～70%.Can keep loose structure after it solidifies, prepared diatomite cured layer has bigger pore volume, stronger adsorptivity and slow release.Behind the diatomite cured layer immersion drag reducer aqueous solution, be full of drag reducer in the nanometer micropore structure in the diatomite cured layer.The utility model utilizes the diatomite solidified surface to adsorb and the slowly-releasing drag reducer; Can not only effectively improve the adhesive force and the Rong Chiliang of drag reducer; Can also reach slow release drag reducer so that it all acts on the effectively purpose in district of turbulent flow, thereby have the drag reducer of raising and utilize usefulness, reduce the drag reducer consumption, reduce advantage such as operation and maintenance cost.
The outer surface of said diatomite cured layer adopts a Palta type body structure surface.The Palta type structure makes diatomite cured layer surface more coarse, can reduce adhering to of materials such as water, dust, makes diatomite cured layer outer surface have better drag-reduction effect.
The outer surface of said diatomite cured layer preferably adopts the sharkskin body structure surface.
The imitative shark cortex of the manual work that said diatomite cured layer adopts diatomite to process is provided with said nanometer micropore structure in the imitative shark cortex of said manual work, is provided with said drag reducer in the said nanometer micropore structure.The utility model not only has the imitative shark scale groove pattern of high micron order true to nature; Can bring into play the anti-drag function of imitative shark scale groove; But also have the nanometer porous micro-structural of diatom shell, can bring into play the anti-drag function of imitative shark slowly-releasing self-lubricating mucus simultaneously.Thereby realize improving the purpose of submarine navigation device and long distance oil-gas conveyance conduit drag reduction ability.
Beneficial effect: owing to adopt technique scheme, the utility model not only can be brought into play the anti-drag function of imitative shark scale groove, but also can bring into play the anti-drag function of imitative shark slowly-releasing self-lubricating mucus simultaneously.
Description of drawings
Fig. 1 is the part enlarged diagram of the utility model;
Fig. 2 is the part cross section enlarged diagram of the utility model.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand with effect and understand, below in conjunction with the further elaboration the utility model of concrete diagram.
With reference to Fig. 1, Fig. 2, imitative shark composite anti-drag device comprises a diatomite cured layer 1, is provided with at least two nanometer micropore structures 11 in the diatomite cured layer 1, and nanometer micropore structure 11 is arranged in the diatomite cured layer 1 uniformly.Be provided with drag reducer in the nanometer micropore structure in the diatomite cured layer 1.The utility model is through the diatomite curing process, diatomite is solidified into diatomite cured layer 1 after, its solidification intensity is at 15MPa～40MPa, porosity is 40%～70%.Can keep loose structure after it solidifies, prepared diatomite cured layer 1 has bigger pore volume, stronger adsorptivity and slow release.Behind the diatomite cured layer 1 immersion drag reducer aqueous solution, be full of drag reducer in the nanometer micropore structure in the diatomite cured layer 1.The utility model utilizes the diatomite solidified surface to adsorb and the slowly-releasing drag reducer; Can not only effectively improve the adhesive force and the Rong Chiliang of drag reducer; Can also reach slow release drag reducer so that it all acts on the effectively purpose in district of turbulent flow, thereby have the drag reducer of raising and utilize usefulness, reduce the drag reducer consumption, reduce advantage such as operation and maintenance cost.
The outer surface of diatomite cured layer 1 adopts a Palta type body structure surface 2.The Palta type structure makes diatomite cured layer 1 surface more coarse, can reduce adhering to of materials such as water, dust, makes diatomite cured layer 1 outer surface have better drag-reduction effect.The outer surface of diatomite cured layer 1 preferably adopts the sharkskin body structure surface.The imitative shark cortex of the manual work that diatomite cured layer 1 adopts diatomite to process is provided with the nanometer micropore structure in the artificial imitative shark cortex, is provided with drag reducer in the nanometer micropore structure.The utility model not only has the imitative shark scale groove pattern of high micron order true to nature; Can bring into play the anti-drag function of imitative shark scale groove; But also have the nanometer porous micro-structural of diatom shell, can bring into play the anti-drag function of imitative shark slowly-releasing self-lubricating mucus simultaneously.Thereby realize improving the purpose of submarine navigation device and long distance oil-gas conveyance conduit drag reduction ability.
The manufacture craft of the utility model diatomite cured layer (surface) can adopt the diatomaceous mode of thermocompression bonding to make:
The first step, the diatomite preliminary treatment obtains the diatomite mixture.The diatomite pretreating process can adopt preprocess method commonly used; Also can adopt following diatomite pre-treatment step: (A) under the room temperature condition; Is immersion treatment 3min～5min in 1.5%～3.5% the HF solution with diatomite at mass percent concentration; Use the filter cloth of 5 μ m～20 μ m to filter then, obtain the first diatomite mixture.(B) be under 80 ℃～90 ℃ conditions with the first diatomite mixture in temperature, immersion treatment 10min～20min in NH4, H2O2, H2O mixed liquor (1: 2: 7) uses the filter cloth of 5 μ m～20 μ m to filter then, obtains the second diatomite mixture.(C) the second diatomite mixture is added deionized water at ambient temperature; At power is that 800W～1200W, operating frequency are under the condition of 30KHz～50KHz; Ultrasonic cleaning 10min～20min uses the filter cloth of 5 μ m～20 μ m to filter then, obtains the 3rd diatomite mixture.
In second step, tripolite filtering screen: the diatomite mixture that (A) first step is made adds deionized water at ambient temperature, uses the filter cloth of 30 μ m～40 μ m to filter then, filters the diatomite mixture of particle diameter more than 30 μ m.(B) the diatomite mixture with remainder dries up with N2 at ambient temperature, obtains the 4th diatomite mixture.
The 3rd step; Diatomite acid etching: under the room temperature condition; It is acid etching 10min～20min in 10%～20% the HF solution that second the 4th diatomite mixture that obtain of step is joined mass percent concentration; Use the filter cloth of 5 μ m～20 μ m to filter then, obtain the 5th diatomite mixture.
In the 4th step, high imitative shark scale groove pattern true to nature is copied into type: it is that nickel, thickness are the imitative shark scale groove negative template of nickel matter of 2.5mm～3.5mm that the clone method that (A) adopts biological epidermis to duplicate template copies metal material.(B) the imitative shark scale groove negative template of nickel matter being put into deionized water at ambient temperature, is that 800W～1200W, operating frequency are ultrasonic cleaning 10min～20min under the condition of 30KHz～50KHz at power, dries for use then.The clone method that biological epidermis duplicates template can adopt existing method to obtain duplicating template.
The 5th step; Diatomite hot-press solidifying straight forming under the imitative shark scale groove pattern constraint: the 5th diatomite mixture that (A) the 3rd step was made is evenly put into hot pressing die, and hot pressing die is placed on the electrical heating pedestal in the hot-press solidifying restriction molding device.Hot pressing die adopts lead to process.Shape according to the imitative shark composite anti-drag surface that will make is different, like tabular or pipe shape, can change this hot pressing die as required arbitrarily.(B) with the imitative shark scale groove negative template of the 4th nickel matter that makes of step plaited surface is arranged on the five diatomite mixture of lower cover in hot pressing die, compress at the imitative shark scale groove negative template back side of nickel matter then and all press sandbag.(C) the electrical heating pedestal is warming up to 415 ℃～650 ℃, and in this temperature range, keeps constant temperature.(D) all pressing the 500～700kPa that exerts pressure on the sandbag to carry out thermocompression bonding 5h～10h, carry out the demoulding then.(E) under the room temperature condition diatomite solidified surface after the demoulding is immersed in the deionized water; At power is that 800W～1200W, operating frequency are ultrasonic cleaning 10min～20min under the condition of 30KHz～50KHz; Dry up with N2 then, promptly obtain having the diatomite solidified surface of high imitative shark scale groove pattern true to nature.
For ease of the demoulding, in the 5th step, be 80% the boron nitride aqueous solution in advance at the very thin one deck mass percent concentration of the even coating of hot pressing die inner surface.In advance evenly applying very thin one deck mass percent concentration on the plaited surface having of the imitative shark scale groove negative template of nickel matter is 80% the boron nitride aqueous solution.
The 6th step; Diatomite solidified surface absorption slowly-releasing drag reducer: (A) under the room temperature condition; The diatomite solidified surface that the 5th step was made immerses in the deionized water; At power is that 800W～1200W, operating frequency are ultrasonic cleaning 10min～20min under the condition of 30KHz～50KHz, dries up with N2 then.(B) the preparation drag reducer aqueous solution, the drag reducer aqueous solution of employing is preferably polyacrylamide (PAM) the drag reducer aqueous solution.The preparation method of the polyacrylamide drag reducer aqueous solution is following: under the room temperature condition, in deionized water, slowly add polyacrylamide (PAM) powder granule while stirring, the preparation mass percent concentration is 2% the polyacrylamide drag reducer aqueous solution.(C) dried diatomite solidified surface is immersed the drag reducer aqueous solution fully, placing then outgases in the vacuum drying chamber handles 10min～20min, takes out then, just makes imitative shark composite anti-drag surface.
The manufacture craft of the utility model diatomite cured layer (surface) can adopt the diatomaceous mode of high temperature sintering to make:
The first step, the diatomite pretreating process makes the diatomite mixture.The diatomite pretreating process can adopt preprocess method commonly used; Also can adopt following diatomite pre-treatment step: (A) under the room temperature condition; Is immersion treatment 3min～5min in 1.5%～3.5% the HF solution with diatomite at mass percent concentration; Use the filter cloth of 5 μ m～20 μ m to filter then, obtain the first diatomite mixture.(B) be under 80 ℃～90 ℃ conditions with the first diatomite mixture in temperature, immersion treatment 10min～20min in NH4, H2O2, H2O mixed liquor (1: 2: 7) uses the filter cloth of 5 μ m～20 μ m to filter then, obtains the second diatomite mixture.(C) the second diatomite mixture is added deionized water at ambient temperature; At power is that 800W～1200W, operating frequency are under the condition of 30KHz～50KHz; Ultrasonic cleaning 10min～20min uses the filter cloth of 5 μ m～20 μ m to filter then, obtains the 3rd diatomite mixture.
In second step, tripolite filtering screen technology makes the diatomite mixture.Tripolite filtering screen technology can adopt screen method commonly used; Also can adopt following steps: the diatomite mixture that the first step is made adds deionized water at ambient temperature; Use the filter cloth of 30 μ m～40 μ m to filter then; Filter the diatomite mixture of particle diameter more than 30 μ m, obtain the 4th diatomite mixture.
In the 3rd step, the diatomite base manufacture craft that wets can adopt wet base preparation method commonly used; Also can adopt following steps: (A) under the room temperature condition; The diatomite mixture that second step was obtained adds deionized water, and the preparation solid content is 50%～70% diatomite mud, old then 1d.(B) in the mould of definite shape, adopt slip-casting shaping process to produce the wet base of diatomite.Mould can be different according to the shape of the diatomite solidified surface that will make, like tabular or pipe shape, can be arbitrarily mold exchange more.(C) under the room temperature condition the wet base of diatomite is carried out preliminary natural air drying, moisture content is controlled at 60%～80%.
The 4th step: high imitative shark scale groove pattern true to nature is copied into type: it is that nickel, thickness are the imitative shark scale groove negative template of nickel matter of 2.5mm～3.5mm that the clone method that (A) adopts biological epidermis to duplicate template copies metal material.(B) the imitative shark scale groove negative template of nickel matter being put into deionized water at ambient temperature, is that 800W～1200W, operating frequency are ultrasonic cleaning 10min～20min under the condition of 30KHz～50KHz at power, dries for use then.The clone method that biological epidermis duplicates template can adopt existing method to obtain duplicating template.
The 5th step; Diatomite sintering curing straight forming under the imitative shark scale groove pattern constraint: the plaited surface that has that the nickel matter that (A) the 4th step was made is imitated shark scale groove negative template places on the sintering furnace pedestal in the high temperature sintering furnace up; Then with 3) the wet mold tool of the diatomite that makes is placed on the imitative shark scale groove negative template of nickel matter top, and the wet base of the diatomite in the mould tips upside down on having on the plaited surface of the imitative shark scale groove negative template of nickel matter.(B) in 1050 ℃～1150 ℃ temperature ranges, carry out constant temperature sintering processes 1.5h～2.5h, carry out the demoulding after slowly reducing to room temperature, promptly obtain the diatomite solidified surface.For ease of the demoulding, be 80% the boron nitride aqueous solution in advance at the very thin one deck mass percent concentration of the even coating of mould inner surface.For ease of the demoulding, in advance evenly applying very thin one deck mass percent concentration on the plaited surface having of the imitative shark scale groove negative template of nickel matter is 80% the boron nitride aqueous solution.(C) under the room temperature condition diatomite solidified surface after the demoulding is immersed in the deionized water; At power is that 800W～1200W, operating frequency are ultrasonic cleaning 10min～20min under the condition of 30KHz～50KHz; Dry up with N2 then, promptly obtain having the diatomite solidified surface of high imitative shark scale groove pattern true to nature.
The 6th step; Diatomite solidified surface absorption slowly-releasing drag reducer: (A) under the room temperature condition; The diatomite solidified surface that the 5th step was made immerses in the deionized water; At power is that 800W～1200W, operating frequency are ultrasonic cleaning 10min～20min under the condition of 30KHz～50KHz, dries up with N2 then.(B) the preparation drag reducer aqueous solution.The drag reducer aqueous solution that adopts is polyacrylamide (PAM) the drag reducer aqueous solution.The preparation method of the polyacrylamide drag reducer aqueous solution is following: under the room temperature condition, in deionized water, slowly add polyacrylamide (PAM) powder granule while stirring, the preparation mass percent concentration is 2% the PAM drag reducer aqueous solution.(C) dried diatomite solidified surface is immersed the drag reducer aqueous solution fully, placing then outgases in the vacuum drying chamber handles 10min～20min, takes out then, just makes imitative shark composite anti-drag surface.
More than show and described basic principle of the utility model and the advantage of principal character and the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (4)
1. imitative shark composite anti-drag device is characterized in that, comprises a diatomite cured layer, is provided with at least two nanometer micropore structures in the said diatomite cured layer, is provided with drag reducer in the nanometer micropore structure in the said diatomite cured layer.
2. imitative shark composite anti-drag device according to claim 1, it is characterized in that: the outer surface of said diatomite cured layer adopts a Palta type body structure surface.
3. imitative shark composite anti-drag device according to claim 2 is characterized in that: the outer surface of said diatomite cured layer adopts the sharkskin body structure surface.
4. imitative shark composite anti-drag device according to claim 1; It is characterized in that: the imitative shark cortex of the manual work that said diatomite cured layer adopts diatomite to process; Be provided with said nanometer micropore structure in the imitative shark cortex of said manual work, be provided with said drag reducer in the said nanometer micropore structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203320501U CN202200602U (en) | 2011-09-06 | 2011-09-06 | Shark-simulated combined damping device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203320501U CN202200602U (en) | 2011-09-06 | 2011-09-06 | Shark-simulated combined damping device |
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| CN202200602U true CN202200602U (en) | 2012-04-25 |
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| CN2011203320501U Expired - Fee Related CN202200602U (en) | 2011-09-06 | 2011-09-06 | Shark-simulated combined damping device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102764804A (en) * | 2012-07-04 | 2012-11-07 | 哈尔滨工程大学 | Processing device and method for inner-wall resistance reduction structure of pipeline |
| CN103089815A (en) * | 2012-06-11 | 2013-05-08 | 沈阳理工大学 | Surface structure of end surface sliding bearing of leaf rank configuration lubricating oil points |
| CN104086154A (en) * | 2014-06-23 | 2014-10-08 | 山东理工大学 | Vacuum-evaporation-based preparation method of diatomite-based drag-reduction anti-scaling algae-inhibiting type functional composite structure |
| CN104637897A (en) * | 2015-02-05 | 2015-05-20 | 哈尔滨工程大学 | Bionic-based impact-type water-cooling heat radiator |
| CN106043591A (en) * | 2016-06-14 | 2016-10-26 | 山东理工大学 | Drag reduction device used for water surface and underwater vehicle and manufacturing method of drag reduction device |
| CN106628069A (en) * | 2016-12-27 | 2017-05-10 | 中电科海洋信息技术研究院有限公司 | Fish skin of robot fish and robot fish containing same |
| CN106810109A (en) * | 2017-02-13 | 2017-06-09 | 山东理工大学 | The technique for making bionical complex function structure using diatomite acid etching |
| CN108043713A (en) * | 2017-12-21 | 2018-05-18 | 山东理工大学 | A kind of imitative Patterns of Placoid Scales of Sharks bleeding formula flake sieve |
-
2011
- 2011-09-06 CN CN2011203320501U patent/CN202200602U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089815A (en) * | 2012-06-11 | 2013-05-08 | 沈阳理工大学 | Surface structure of end surface sliding bearing of leaf rank configuration lubricating oil points |
| CN102764804A (en) * | 2012-07-04 | 2012-11-07 | 哈尔滨工程大学 | Processing device and method for inner-wall resistance reduction structure of pipeline |
| CN102764804B (en) * | 2012-07-04 | 2014-11-05 | 哈尔滨工程大学 | Processing device and method for inner-wall resistance reduction structure of pipeline |
| CN104086154A (en) * | 2014-06-23 | 2014-10-08 | 山东理工大学 | Vacuum-evaporation-based preparation method of diatomite-based drag-reduction anti-scaling algae-inhibiting type functional composite structure |
| CN104637897A (en) * | 2015-02-05 | 2015-05-20 | 哈尔滨工程大学 | Bionic-based impact-type water-cooling heat radiator |
| CN106043591A (en) * | 2016-06-14 | 2016-10-26 | 山东理工大学 | Drag reduction device used for water surface and underwater vehicle and manufacturing method of drag reduction device |
| CN106628069A (en) * | 2016-12-27 | 2017-05-10 | 中电科海洋信息技术研究院有限公司 | Fish skin of robot fish and robot fish containing same |
| CN106810109A (en) * | 2017-02-13 | 2017-06-09 | 山东理工大学 | The technique for making bionical complex function structure using diatomite acid etching |
| CN106810109B (en) * | 2017-02-13 | 2018-11-30 | 山东理工大学 | The technique for making bionical complex function structural body using diatomite acid etching |
| CN108043713A (en) * | 2017-12-21 | 2018-05-18 | 山东理工大学 | A kind of imitative Patterns of Placoid Scales of Sharks bleeding formula flake sieve |
| CN108043713B (en) * | 2017-12-21 | 2021-10-08 | 山东理工大学 | Shark scale imitating liquid draining type fisheye screen |
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| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120425 Termination date: 20120906 |